/* roulang page: index */
:root {
            --primary: #1a56db;
            --primary-dark: #1e40af;
            --primary-light: #dbeafe;
            --primary-50: #eff6ff;
            --secondary: #0f172a;
            --accent: #f59e0b;
            --accent-dark: #d97706;
            --accent-light: #fef3c7;
            --bg: #f8fafc;
            --bg-alt: #f1f5f9;
            --surface: #ffffff;
            --text: #1e293b;
            --text-secondary: #64748b;
            --text-muted: #94a3b8;
            --border: #e2e8f0;
            --border-light: #f1f5f9;
            --radius-sm: 6px;
            --radius: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.04);
            --shadow: 0 4px 24px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 8px 32px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.10);
            --shadow-xl: 0 24px 64px rgba(0, 0, 0, 0.12);
            --transition: 0.2s ease;
            --transition-slow: 0.35s ease;
            --font-heading: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --font-body: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --max-width: 1200px;
            --nav-height: 68px;
            --section-gap: 80px;
            --section-gap-sm: 48px;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-body);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            min-height: 100vh;
            overflow-x: hidden;
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--primary-dark);
        }
        a:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 3px;
            border-radius: 3px;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button {
            cursor: pointer;
            font-family: inherit;
        }
        input {
            font-family: inherit;
        }

        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        .section {
            padding: var(--section-gap) 0;
        }
        .section-sm {
            padding: var(--section-gap-sm) 0;
        }
        .section-alt {
            background: var(--bg-alt);
        }
        .section-dark {
            background: var(--secondary);
            color: #ffffff;
        }
        .section-primary-light {
            background: var(--primary-50);
        }

        .section-label {
            display: inline-block;
            font-size: 0.82rem;
            font-weight: 700;
            letter-spacing: 0.06em;
            text-transform: uppercase;
            color: var(--primary);
            background: var(--primary-light);
            padding: 6px 16px;
            border-radius: 20px;
            margin-bottom: 12px;
        }
        .section-title {
            font-family: var(--font-heading);
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--secondary);
            line-height: 1.3;
            margin-bottom: 16px;
            letter-spacing: -0.01em;
        }
        .section-desc {
            font-size: 1.05rem;
            color: var(--text-secondary);
            line-height: 1.75;
            max-width: 720px;
            margin: 0 auto 0 0;
        }
        .section-header {
            margin-bottom: 48px;
        }
        .section-header.centered {
            text-align: center;
        }
        .section-header.centered .section-desc {
            margin-left: auto;
            margin-right: auto;
        }

        /* Header & Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            height: var(--nav-height);
            display: flex;
            align-items: center;
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
        }
        .logo-wrap {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .logo-icon {
            width: 40px;
            height: 40px;
            background: var(--primary);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 700;
            font-size: 1.1rem;
            flex-shrink: 0;
        }
        .logo-text {
            font-family: var(--font-heading);
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--secondary);
            letter-spacing: -0.01em;
            white-space: nowrap;
        }
        .logo-text a {
            color: inherit;
            text-decoration: none;
        }
        .logo-text a:hover {
            color: var(--primary);
        }

        .nav-main {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: wrap;
            list-style: none;
        }
        .nav-main li {
            list-style: none;
        }
        .nav-main a {
            display: inline-block;
            padding: 8px 16px;
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: 8px;
            white-space: nowrap;
            transition: all var(--transition);
            text-decoration: none;
        }
        .nav-main a:hover {
            color: var(--primary);
            background: var(--primary-50);
        }
        .nav-main a.active {
            color: var(--primary);
            background: var(--primary-light);
            font-weight: 600;
        }
        .nav-cta-btn {
            display: inline-block;
            padding: 10px 22px;
            font-size: 0.9rem;
            font-weight: 600;
            color: #fff !important;
            background: var(--primary);
            border-radius: 8px;
            white-space: nowrap;
            transition: all var(--transition);
            text-decoration: none;
            flex-shrink: 0;
        }
        .nav-cta-btn:hover {
            background: var(--primary-dark);
            color: #fff !important;
            box-shadow: var(--shadow);
            transform: translateY(-1px);
        }

        .mobile-menu-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--secondary);
            padding: 8px;
            cursor: pointer;
            line-height: 1;
        }
        .mobile-nav-panel {
            display: none;
            position: fixed;
            top: var(--nav-height);
            left: 0;
            right: 0;
            bottom: 0;
            background: #fff;
            z-index: 999;
            padding: 20px 24px;
            overflow-y: auto;
            flex-direction: column;
            gap: 4px;
        }
        .mobile-nav-panel.open {
            display: flex;
        }
        .mobile-nav-panel a {
            display: block;
            padding: 14px 16px;
            font-size: 1.05rem;
            font-weight: 500;
            color: var(--text);
            border-radius: 10px;
            text-decoration: none;
            transition: all var(--transition);
        }
        .mobile-nav-panel a:hover,
        .mobile-nav-panel a.active {
            background: var(--primary-50);
            color: var(--primary);
        }
        .mobile-nav-panel .nav-cta-btn {
            text-align: center;
            margin-top: 12px;
            display: block;
            color: #fff !important;
        }

        /* Hero */
        .hero-section {
            padding: 64px 0 72px;
            background: linear-gradient(170deg, #f0f5ff 0%, #f8fafc 40%, #ffffff 100%);
            position: relative;
            overflow: hidden;
        }
        .hero-section::before {
            content: '';
            position: absolute;
            top: -120px;
            right: -80px;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(26, 86, 219, 0.06) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .hero-section::after {
            content: '';
            position: absolute;
            bottom: -60px;
            left: -40px;
            width: 350px;
            height: 350px;
            background: radial-gradient(circle, rgba(245, 158, 11, 0.05) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .hero-inner {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 56px;
            align-items: center;
            position: relative;
            z-index: 1;
        }
        .hero-badge-row {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-bottom: 20px;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.82rem;
            font-weight: 600;
            color: var(--primary);
            background: #fff;
            border: 1px solid var(--primary-light);
            padding: 6px 14px;
            border-radius: 20px;
            white-space: nowrap;
        }
        .hero-badge i {
            font-size: 0.75rem;
            color: var(--accent);
        }
        .hero-title {
            font-family: var(--font-heading);
            font-size: 2.8rem;
            font-weight: 800;
            color: var(--secondary);
            line-height: 1.2;
            letter-spacing: -0.02em;
            margin-bottom: 18px;
        }
        .hero-title .highlight {
            color: var(--primary);
            position: relative;
        }
        .hero-desc {
            font-size: 1.1rem;
            color: var(--text-secondary);
            line-height: 1.75;
            margin-bottom: 28px;
            max-width: 520px;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            align-items: center;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-weight: 600;
            border-radius: 10px;
            padding: 12px 28px;
            font-size: 0.95rem;
            border: none;
            transition: all var(--transition);
            text-decoration: none;
            cursor: pointer;
            font-family: var(--font-body);
            white-space: nowrap;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 16px rgba(26, 86, 219, 0.25);
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            box-shadow: 0 6px 24px rgba(26, 86, 219, 0.35);
            transform: translateY(-2px);
            color: #fff;
        }
        .btn-outline {
            background: #fff;
            color: var(--primary);
            border: 2px solid var(--primary);
        }
        .btn-outline:hover {
            background: var(--primary-50);
            color: var(--primary-dark);
            border-color: var(--primary-dark);
        }
        .btn-accent {
            background: var(--accent);
            color: #fff;
            box-shadow: 0 4px 16px rgba(245, 158, 11, 0.25);
        }
        .btn-accent:hover {
            background: var(--accent-dark);
            box-shadow: 0 6px 24px rgba(245, 158, 11, 0.35);
            transform: translateY(-2px);
            color: #fff;
        }
        .btn-lg {
            padding: 15px 34px;
            font-size: 1rem;
            border-radius: 12px;
        }
        .btn-sm {
            padding: 8px 18px;
            font-size: 0.85rem;
            border-radius: 8px;
        }
        .hero-visual {
            position: relative;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .hero-visual-card {
            background: #fff;
            border-radius: var(--radius-xl);
            padding: 28px 24px;
            box-shadow: var(--shadow-lg);
            width: 100%;
            max-width: 420px;
            position: relative;
            z-index: 1;
        }
        .hero-visual-card .trial-steps {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .hero-visual-card .trial-step {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 12px 14px;
            background: var(--bg);
            border-radius: 10px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text);
        }
        .hero-visual-card .trial-step-icon {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            font-weight: 700;
            font-size: 0.85rem;
        }
        .hero-visual-card .trial-highlight {
            text-align: center;
            margin-top: 12px;
            padding: 10px;
            background: var(--accent-light);
            border-radius: 8px;
            font-weight: 600;
            color: var(--accent-dark);
            font-size: 0.88rem;
        }

        /* Pain Points */
        .pain-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .pain-card {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            box-shadow: var(--shadow);
            border: 1px solid var(--border-light);
            transition: all var(--transition-slow);
            position: relative;
            overflow: hidden;
        }
        .pain-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
            border-color: #e0e7ff;
        }
        .pain-card .pain-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            margin-bottom: 16px;
            background: #fef2f2;
            color: #ef4444;
        }
        .pain-card:nth-child(2) .pain-icon {
            background: #fff7ed;
            color: #f97316;
        }
        .pain-card:nth-child(3) .pain-icon {
            background: #fefce8;
            color: #eab308;
        }
        .pain-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--secondary);
        }
        .pain-card p {
            font-size: 0.92rem;
            color: var(--text-secondary);
            line-height: 1.65;
        }

        /* Steps */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
            position: relative;
        }
        .steps-grid::before {
            content: '';
            position: absolute;
            top: 56px;
            left: 18%;
            right: 18%;
            height: 2px;
            background: var(--border);
            z-index: 0;
            display: none;
        }
        .step-item {
            text-align: center;
            position: relative;
            z-index: 1;
        }
        .step-num {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            font-size: 1.3rem;
            font-weight: 700;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 20px;
            box-shadow: 0 8px 24px rgba(26, 86, 219, 0.2);
        }
        .step-item h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--secondary);
        }
        .step-item p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        /* Brand Intro */
        .brand-intro-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }
        .brand-intro-img {
            border-radius: var(--radius-xl);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }
        .brand-intro-img img {
            width: 100%;
            height: auto;
            object-fit: cover;
        }
        .brand-intro-text h3 {
            font-size: 1.5rem;
            font-weight: 700;
            margin-bottom: 14px;
            color: var(--secondary);
        }
        .brand-intro-text p {
            font-size: 0.98rem;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 10px;
        }

        /* Product Showcase */
        .showcase-wrapper {
            position: relative;
            background: #fff;
            border-radius: var(--radius-xl);
            padding: 40px;
            box-shadow: var(--shadow-lg);
            overflow: hidden;
        }
        .showcase-frame {
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            border: 2px solid var(--border);
            position: relative;
        }
        .showcase-frame img {
            width: 100%;
            display: block;
        }
        .showcase-dots {
            display: flex;
            gap: 8px;
            justify-content: center;
            margin-top: 20px;
        }
        .showcase-dot {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: var(--border);
            cursor: pointer;
            transition: all var(--transition);
        }
        .showcase-dot.active {
            background: var(--primary);
            width: 28px;
            border-radius: 5px;
        }
        .showcase-info {
            text-align: center;
            margin-top: 20px;
        }
        .showcase-info h3 {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--secondary);
        }
        .showcase-info p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            margin-top: 6px;
        }

        /* Progress */
        .progress-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .progress-card {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 28px 22px;
            box-shadow: var(--shadow);
            text-align: center;
            border: 1px solid var(--border-light);
            transition: all var(--transition);
            position: relative;
        }
        .progress-card.done {
            border-color: #bbf7d0;
            background: #f0fdf4;
        }
        .progress-card.done .progress-check {
            background: #22c55e;
            color: #fff;
        }
        .progress-check {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--border);
            color: var(--text-muted);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 1rem;
            margin-bottom: 14px;
            transition: all var(--transition);
        }
        .progress-card h4 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 6px;
            color: var(--secondary);
        }
        .progress-card p {
            font-size: 0.82rem;
            color: var(--text-secondary);
            line-height: 1.5;
        }
        .progress-bar-wrap {
            margin-top: 32px;
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 24px 28px;
            box-shadow: var(--shadow);
        }
        .progress-bar-label {
            display: flex;
            justify-content: space-between;
            font-weight: 600;
            margin-bottom: 10px;
            font-size: 0.95rem;
        }
        .progress-bar {
            height: 12px;
            background: var(--border);
            border-radius: 6px;
            overflow: hidden;
        }
        .progress-bar-fill {
            height: 100%;
            background: linear-gradient(90deg, var(--primary), #3b82f6);
            border-radius: 6px;
            transition: width 0.6s ease;
            width: 68%;
        }

        /* Tier */
        .tier-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .tier-card {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 36px 28px;
            box-shadow: var(--shadow);
            border: 2px solid var(--border-light);
            text-align: center;
            transition: all var(--transition-slow);
            position: relative;
        }
        .tier-card.featured {
            border-color: var(--primary);
            box-shadow: var(--shadow-lg);
            transform: scale(1.03);
            z-index: 2;
            background: #fff;
        }
        .tier-card.featured::before {
            content: '热门推荐';
            position: absolute;
            top: -14px;
            left: 50%;
            transform: translateX(-50%);
            background: var(--primary);
            color: #fff;
            font-size: 0.78rem;
            font-weight: 700;
            padding: 5px 16px;
            border-radius: 20px;
            white-space: nowrap;
        }
        .tier-card h3 {
            font-size: 1.25rem;
            font-weight: 700;
            margin-bottom: 6px;
            color: var(--secondary);
        }
        .tier-price {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--primary);
            margin: 14px 0;
        }
        .tier-price span {
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-muted);
        }
        .tier-features {
            list-style: none;
            text-align: left;
            margin: 20px 0;
            padding: 0;
        }
        .tier-features li {
            padding: 7px 0;
            font-size: 0.88rem;
            color: var(--text-secondary);
            border-bottom: 1px solid var(--border-light);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .tier-features li i {
            color: #22c55e;
            font-size: 0.75rem;
        }
        .tier-card .btn {
            margin-top: 16px;
            width: 100%;
            justify-content: center;
        }

        /* Category Grid */
        .cat-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }
        .cat-card {
            background: #fff;
            border-radius: var(--radius);
            padding: 24px 18px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: all var(--transition);
            cursor: pointer;
            text-decoration: none;
            color: inherit;
            display: block;
        }
        .cat-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
            border-color: var(--primary-light);
            color: inherit;
        }
        .cat-card .cat-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            margin-bottom: 12px;
            background: var(--primary-50);
            color: var(--primary);
        }
        .cat-card h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--secondary);
            margin-bottom: 4px;
        }
        .cat-card p {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        /* Opinion */
        .opinion-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }
        .opinion-card {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 28px;
            box-shadow: var(--shadow);
            border-left: 4px solid var(--primary);
            transition: all var(--transition);
        }
        .opinion-card:hover {
            box-shadow: var(--shadow-md);
        }
        .opinion-card .quote-icon {
            font-size: 2rem;
            color: var(--primary-light);
            margin-bottom: 10px;
            line-height: 1;
        }
        .opinion-card p {
            font-size: 0.95rem;
            color: var(--text);
            line-height: 1.7;
            font-style: italic;
        }
        .opinion-card .opinion-author {
            margin-top: 14px;
            font-size: 0.85rem;
            color: var(--text-muted);
            font-weight: 600;
            font-style: normal;
        }

        /* Stats */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .stat-card {
            text-align: center;
            padding: 32px 20px;
            background: #fff;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow);
            border: 1px solid var(--border-light);
        }
        .stat-num {
            font-size: 2.8rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1;
            margin-bottom: 8px;
        }
        .stat-label {
            font-size: 0.9rem;
            color: var(--text-secondary);
            font-weight: 500;
        }

        /* News */
        .news-layout {
            display: grid;
            grid-template-columns: 2fr 1fr;
            gap: 32px;
        }
        .news-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 0;
        }
        .news-list li {
            padding: 18px 0;
            border-bottom: 1px solid var(--border-light);
            display: flex;
            flex-direction: column;
            gap: 6px;
        }
        .news-list .news-date {
            font-size: 0.8rem;
            color: var(--text-muted);
            font-weight: 500;
        }
        .news-list .news-title {
            font-size: 1rem;
            font-weight: 700;
            color: var(--secondary);
            text-decoration: none;
            transition: color var(--transition);
        }
        .news-list .news-title:hover {
            color: var(--primary);
        }
        .news-list .news-summary {
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.6;
        }
        .news-list .news-more {
            font-size: 0.82rem;
            color: var(--primary);
            font-weight: 600;
            text-decoration: none;
            align-self: flex-start;
        }
        .news-list .news-more:hover {
            color: var(--primary-dark);
        }
        .news-sidebar {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 24px;
            box-shadow: var(--shadow);
            height: fit-content;
        }
        .news-sidebar h4 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 16px;
            color: var(--secondary);
        }
        .news-sidebar ul {
            list-style: none;
        }
        .news-sidebar ul li {
            padding: 10px 0;
            border-bottom: 1px solid var(--border-light);
            font-size: 0.88rem;
        }
        .news-sidebar ul li a {
            color: var(--text);
            text-decoration: none;
            transition: color var(--transition);
        }
        .news-sidebar ul li a:hover {
            color: var(--primary);
        }

        /* Reviews */
        .review-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .review-card {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 28px;
            box-shadow: var(--shadow);
            border: 1px solid var(--border-light);
        }
        .review-stars {
            color: #f59e0b;
            font-size: 0.9rem;
            margin-bottom: 10px;
        }
        .review-card p {
            font-size: 0.9rem;
            color: var(--text);
            line-height: 1.65;
            font-style: italic;
        }
        .review-card .reviewer {
            margin-top: 14px;
            font-weight: 600;
            font-size: 0.85rem;
            color: var(--secondary);
            font-style: normal;
        }
        .review-card .reviewer span {
            font-weight: 400;
            color: var(--text-muted);
        }

        /* FAQ */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            background: #fff;
            border-radius: var(--radius);
            margin-bottom: 12px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: all var(--transition);
        }
        .faq-item:hover {
            box-shadow: var(--shadow);
        }
        .faq-q {
            padding: 18px 24px;
            font-weight: 700;
            font-size: 1rem;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            color: var(--secondary);
            user-select: none;
            background: #fff;
            border: none;
            width: 100%;
            text-align: left;
            font-family: var(--font-body);
        }
        .faq-q i {
            transition: transform var(--transition);
            color: var(--text-muted);
            font-size: 0.8rem;
        }
        .faq-item.open .faq-q i {
            transform: rotate(180deg);
            color: var(--primary);
        }
        .faq-a {
            padding: 0 24px 18px;
            font-size: 0.92rem;
            color: var(--text-secondary);
            line-height: 1.7;
            display: none;
        }
        .faq-item.open .faq-a {
            display: block;
        }

        /* CTA */
        .cta-section {
            background: linear-gradient(135deg, var(--primary) 0%, #1e40af 100%);
            color: #fff;
            text-align: center;
            border-radius: var(--radius-xl);
            padding: 56px 40px;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 250px;
            height: 250px;
            background: rgba(255, 255, 255, 0.04);
            border-radius: 50%;
            pointer-events: none;
        }
        .cta-section h2 {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 12px;
            color: #fff;
            position: relative;
            z-index: 1;
        }
        .cta-section p {
            font-size: 1rem;
            opacity: 0.9;
            margin-bottom: 24px;
            position: relative;
            z-index: 1;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }
        .cta-section .btn {
            position: relative;
            z-index: 1;
        }
        .cta-section .btn-accent {
            background: #fff;
            color: var(--primary);
            box-shadow: 0 8px 28px rgba(0, 0, 0, 0.2);
            font-weight: 700;
        }
        .cta-section .btn-accent:hover {
            background: #f0f5ff;
            transform: translateY(-3px);
            box-shadow: 0 12px 36px rgba(0, 0, 0, 0.25);
        }

        /* Footer */
        .site-footer {
            background: var(--secondary);
            color: #cbd5e1;
            padding: 48px 0 28px;
            font-size: 0.88rem;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 36px;
        }
        .footer-col h4 {
            color: #fff;
            font-weight: 700;
            font-size: 1rem;
            margin-bottom: 16px;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
        }
        .footer-col ul li {
            margin-bottom: 8px;
        }
        .footer-col ul li a {
            color: #94a3b8;
            text-decoration: none;
            font-size: 0.85rem;
            transition: color var(--transition);
        }
        .footer-col ul li a:hover {
            color: #fff;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            font-size: 0.8rem;
            color: #94a3b8;
        }
        .footer-bottom a {
            color: #94a3b8;
            text-decoration: none;
            margin: 0 6px;
            transition: color var(--transition);
        }
        .footer-bottom a:hover {
            color: #fff;
        }
        .footer-logo-text {
            font-weight: 700;
            color: #fff;
            font-size: 1.1rem;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .hero-inner {
                grid-template-columns: 1fr;
                gap: 36px;
            }
            .hero-visual {
                order: -1;
            }
            .hero-title {
                font-size: 2.2rem;
            }
            .section-title {
                font-size: 1.7rem;
            }
            .pain-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .steps-grid {
                grid-template-columns: repeat(3, 1fr);
                gap: 20px;
            }
            .tier-grid {
                grid-template-columns: repeat(3, 1fr);
                gap: 16px;
            }
            .tier-card.featured {
                transform: scale(1.02);
            }
            .cat-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .progress-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .news-layout {
                grid-template-columns: 1fr;
            }
            .review-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .brand-intro-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
            .opinion-grid {
                grid-template-columns: 1fr;
            }
            .section {
                padding: 56px 0;
            }
        }
        @media (max-width: 768px) {
            .nav-main {
                display: none;
            }
            .nav-cta-btn.desktop-only {
                display: none;
            }
            .mobile-menu-toggle {
                display: block;
            }
            .hero-title {
                font-size: 1.8rem;
            }
            .hero-desc {
                font-size: 0.95rem;
            }
            .section-title {
                font-size: 1.45rem;
            }
            .pain-grid {
                grid-template-columns: 1fr;
            }
            .steps-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .tier-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .tier-card.featured {
                transform: none;
            }
            .cat-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .stat-num {
                font-size: 2rem;
            }
            .progress-grid {
                grid-template-columns: 1fr 1fr;
                gap: 14px;
            }
            .review-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .cta-section {
                padding: 36px 24px;
            }
            .cta-section h2 {
                font-size: 1.5rem;
            }
            .section {
                padding: 40px 0;
            }
            .hero-section {
                padding: 36px 0 44px;
            }
            .showcase-wrapper {
                padding: 20px;
            }
            .hero-visual-card {
                max-width: 100%;
            }
            .btn-lg {
                padding: 12px 24px;
                font-size: 0.9rem;
            }
            .hero-actions {
                flex-direction: column;
                align-items: flex-start;
            }
            .hero-actions .btn {
                width: 100%;
                justify-content: center;
            }
        }
        @media (max-width: 520px) {
            .cat-grid {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .progress-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            .stat-num {
                font-size: 1.7rem;
            }
            .hero-title {
                font-size: 1.5rem;
            }
            .section-title {
                font-size: 1.3rem;
            }
            .container {
                padding: 0 16px;
            }
            .hero-badge {
                font-size: 0.72rem;
                padding: 5px 10px;
            }
        }

/* roulang page: category3 */
:root {
            --primary: #1a56db;
            --primary-dark: #1e40af;
            --primary-light: #dbeafe;
            --primary-50: #eff6ff;
            --secondary: #0f172a;
            --accent: #f59e0b;
            --accent-dark: #d97706;
            --accent-light: #fef3c7;
            --bg: #f8fafc;
            --bg-alt: #f1f5f9;
            --surface: #ffffff;
            --text: #1e293b;
            --text-secondary: #64748b;
            --text-muted: #94a3b8;
            --border: #e2e8f0;
            --border-light: #f1f5f9;
            --radius-sm: 6px;
            --radius: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.04);
            --shadow: 0 4px 24px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 8px 32px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.10);
            --shadow-xl: 0 24px 64px rgba(0, 0, 0, 0.12);
            --transition: 0.2s ease;
            --transition-slow: 0.35s ease;
            --font-heading: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --font-body: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --max-width: 1200px;
            --nav-height: 68px;
            --section-gap: 80px;
            --section-gap-sm: 48px;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-body);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            min-height: 100vh;
            overflow-x: hidden;
            margin: 0;
            padding: 0;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition);
        }

        a:hover {
            color: var(--primary-dark);
        }

        a:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 3px;
            border-radius: 3px;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button {
            cursor: pointer;
            font-family: inherit;
        }

        input {
            font-family: inherit;
        }

        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        .section {
            padding: var(--section-gap) 0;
        }

        .section-sm {
            padding: var(--section-gap-sm) 0;
        }

        .section-alt {
            background: var(--bg-alt);
        }

        .section-dark {
            background: var(--secondary);
            color: #ffffff;
        }

        .section-primary-light {
            background: var(--primary-50);
        }

        .section-label {
            display: inline-block;
            font-size: 0.82rem;
            font-weight: 700;
            letter-spacing: 0.06em;
            text-transform: uppercase;
            color: var(--primary);
            background: var(--primary-light);
            padding: 6px 16px;
            border-radius: 20px;
            margin-bottom: 12px;
        }

        .section-title {
            font-family: var(--font-heading);
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--secondary);
            line-height: 1.3;
            margin-bottom: 16px;
            letter-spacing: -0.01em;
        }

        .section-desc {
            font-size: 1.05rem;
            color: var(--text-secondary);
            line-height: 1.75;
            max-width: 720px;
            margin: 0 auto 0 0;
        }

        .section-header {
            margin-bottom: 48px;
        }

        .section-header.centered {
            text-align: center;
        }

        .section-header.centered .section-desc {
            margin-left: auto;
            margin-right: auto;
        }

        .section-header.centered .section-label {
            margin-left: auto;
            margin-right: auto;
            display: inline-block;
        }

        /* Header & Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            height: var(--nav-height);
            display: flex;
            align-items: center;
        }

        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
        }

        .logo-wrap {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .logo-icon {
            width: 40px;
            height: 40px;
            background: var(--primary);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 700;
            font-size: 1.1rem;
            flex-shrink: 0;
        }

        .logo-text {
            font-family: var(--font-heading);
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--secondary);
            letter-spacing: -0.01em;
            white-space: nowrap;
        }

        .logo-text a {
            color: inherit;
            text-decoration: none;
        }

        .logo-text a:hover {
            color: var(--primary);
        }

        .nav-main {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: wrap;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .nav-main a {
            display: inline-block;
            padding: 8px 16px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: var(--radius-sm);
            transition: all var(--transition);
            white-space: nowrap;
            text-decoration: none;
        }

        .nav-main a:hover {
            color: var(--primary);
            background: var(--primary-50);
        }

        .nav-main a.active {
            color: var(--primary);
            background: var(--primary-light);
            font-weight: 600;
        }

        .nav-cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 22px;
            font-size: 0.9rem;
            font-weight: 600;
            color: #ffffff;
            background: var(--primary);
            border-radius: var(--radius);
            text-decoration: none;
            transition: all var(--transition);
            white-space: nowrap;
            flex-shrink: 0;
            border: none;
        }

        .nav-cta-btn:hover {
            background: var(--primary-dark);
            color: #ffffff;
            box-shadow: var(--shadow-md);
            transform: translateY(-1px);
        }

        .mobile-menu-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.4rem;
            color: var(--text);
            padding: 8px;
            cursor: pointer;
            border-radius: var(--radius-sm);
            transition: background var(--transition);
        }

        .mobile-menu-toggle:hover {
            background: var(--bg-alt);
        }

        .desktop-only {
            display: inline-flex;
        }

        /* Hero - Creator Profile Style */
        .hero-events {
            position: relative;
            padding: 80px 0 90px;
            background: linear-gradient(160deg, #0f172a 0%, #1e3a5f 40%, #1a3a6b 70%, #0f172a 100%);
            overflow: hidden;
            color: #ffffff;
        }

        .hero-events::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            opacity: 0.18;
            z-index: 0;
        }

        .hero-events::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 120px;
            background: linear-gradient(to top, rgba(248, 250, 252, 0.6) 0%, transparent 100%);
            z-index: 1;
            pointer-events: none;
        }

        .hero-events .container {
            position: relative;
            z-index: 2;
        }

        .hero-creator-card {
            display: flex;
            flex-direction: column;
            align-items: center;
            text-align: center;
            max-width: 680px;
            margin: 0 auto;
        }

        .hero-avatar-badge {
            position: relative;
            width: 110px;
            height: 110px;
            border-radius: 50%;
            background: linear-gradient(135deg, #f59e0b, #fbbf24, #f59e0b);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 20px;
            box-shadow: 0 0 0 6px rgba(255, 255, 255, 0.15), 0 0 0 16px rgba(245, 158, 11, 0.2), 0 20px 50px rgba(0, 0, 0, 0.3);
            animation: avatarPulse 3s ease-in-out infinite;
        }

        @keyframes avatarPulse {
            0%,
            100% {
                box-shadow: 0 0 0 6px rgba(255, 255, 255, 0.15), 0 0 0 16px rgba(245, 158, 11, 0.2), 0 20px 50px rgba(0, 0, 0, 0.3);
            }
            50% {
                box-shadow: 0 0 0 10px rgba(255, 255, 255, 0.22), 0 0 0 24px rgba(245, 158, 11, 0.28), 0 20px 55px rgba(0, 0, 0, 0.35);
            }
        }

        .hero-avatar-badge i {
            font-size: 2.8rem;
            color: #ffffff;
            filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.3));
        }

        .hero-nickname {
            font-family: var(--font-heading);
            font-size: 2.6rem;
            font-weight: 800;
            color: #ffffff;
            letter-spacing: -0.02em;
            margin-bottom: 8px;
            line-height: 1.2;
        }

        .hero-nickname-sub {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.75);
            font-weight: 400;
            margin-bottom: 28px;
            letter-spacing: 0.03em;
        }

        .hero-stats-row {
            display: flex;
            gap: 32px;
            flex-wrap: wrap;
            justify-content: center;
            margin-bottom: 32px;
        }

        .hero-stat-badge {
            text-align: center;
            background: rgba(255, 255, 255, 0.08);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            border: 1px solid rgba(255, 255, 255, 0.18);
            border-radius: var(--radius-lg);
            padding: 16px 24px;
            min-width: 120px;
            transition: all var(--transition-slow);
        }

        .hero-stat-badge:hover {
            background: rgba(255, 255, 255, 0.15);
            border-color: rgba(255, 255, 255, 0.3);
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
        }

        .hero-stat-number {
            font-size: 2rem;
            font-weight: 800;
            color: #fbbf24;
            line-height: 1;
            margin-bottom: 4px;
            letter-spacing: -0.01em;
        }

        .hero-stat-label {
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.7);
            font-weight: 500;
            letter-spacing: 0.04em;
        }

        .hero-cta-group {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
            justify-content: center;
        }

        .btn-hero-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 36px;
            font-size: 1rem;
            font-weight: 700;
            color: #0f172a;
            background: linear-gradient(135deg, #fbbf24, #f59e0b);
            border-radius: 50px;
            text-decoration: none;
            transition: all var(--transition);
            border: none;
            box-shadow: 0 6px 28px rgba(245, 158, 11, 0.35);
            letter-spacing: 0.02em;
        }

        .btn-hero-primary:hover {
            background: linear-gradient(135deg, #fcd34d, #fbbf24);
            color: #0f172a;
            transform: translateY(-3px);
            box-shadow: 0 12px 36px rgba(245, 158, 11, 0.5);
        }

        .btn-hero-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 36px;
            font-size: 1rem;
            font-weight: 600;
            color: #ffffff;
            background: transparent;
            border: 2px solid rgba(255, 255, 255, 0.4);
            border-radius: 50px;
            text-decoration: none;
            transition: all var(--transition);
            letter-spacing: 0.02em;
        }

        .btn-hero-outline:hover {
            border-color: #ffffff;
            background: rgba(255, 255, 255, 0.1);
            color: #ffffff;
            transform: translateY(-3px);
        }

        /* Cards */
        .card-event {
            background: var(--surface);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            overflow: hidden;
            transition: all var(--transition-slow);
            box-shadow: var(--shadow-sm);
            height: 100%;
            display: flex;
            flex-direction: column;
        }

        .card-event:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
            border-color: var(--primary-light);
        }

        .card-event-img {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 10;
            background: var(--bg-alt);
        }

        .card-event-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }

        .card-event:hover .card-event-img img {
            transform: scale(1.05);
        }

        .card-event-badge {
            position: absolute;
            top: 14px;
            left: 14px;
            background: var(--accent);
            color: #0f172a;
            font-size: 0.75rem;
            font-weight: 700;
            padding: 5px 12px;
            border-radius: 20px;
            letter-spacing: 0.03em;
            z-index: 2;
        }

        .card-event-body {
            padding: 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .card-event-title {
            font-family: var(--font-heading);
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--secondary);
            margin-bottom: 8px;
            line-height: 1.4;
        }

        .card-event-desc {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.6;
            margin-bottom: 14px;
            flex: 1;
        }

        .card-event-meta {
            display: flex;
            gap: 16px;
            font-size: 0.8rem;
            color: var(--text-muted);
            flex-wrap: wrap;
        }

        .card-event-meta span {
            display: inline-flex;
            align-items: center;
            gap: 5px;
        }

        .card-event-meta i {
            color: var(--primary);
            font-size: 0.75rem;
        }

        .card-event-footer {
            padding: 14px 20px;
            border-top: 1px solid var(--border-light);
            display: flex;
            justify-content: space-between;
            align-items: center;
            background: var(--bg);
        }

        .card-event-prize {
            font-weight: 700;
            color: var(--accent-dark);
            font-size: 1rem;
        }

        .btn-card {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            padding: 8px 18px;
            font-size: 0.85rem;
            font-weight: 600;
            color: #ffffff;
            background: var(--primary);
            border-radius: 50px;
            text-decoration: none;
            transition: all var(--transition);
            border: none;
        }

        .btn-card:hover {
            background: var(--primary-dark);
            color: #ffffff;
            box-shadow: var(--shadow);
        }

        /* Feature Cards */
        .feature-card {
            background: var(--surface);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            padding: 32px 28px;
            text-align: center;
            transition: all var(--transition-slow);
            box-shadow: var(--shadow-sm);
            height: 100%;
        }

        .feature-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
            border-color: var(--primary-light);
        }

        .feature-icon-circle {
            width: 64px;
            height: 64px;
            border-radius: 50%;
            background: var(--primary-50);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 18px;
            font-size: 1.5rem;
            color: var(--primary);
            transition: all var(--transition);
        }

        .feature-card:hover .feature-icon-circle {
            background: var(--primary);
            color: #ffffff;
            transform: scale(1.08);
        }

        .feature-card h4 {
            font-family: var(--font-heading);
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--secondary);
            margin-bottom: 8px;
        }

        .feature-card p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.65;
            margin: 0;
        }

        /* Process Steps */
        .process-step {
            display: flex;
            gap: 20px;
            align-items: flex-start;
            padding: 24px 0;
            position: relative;
        }

        .process-step:not(:last-child)::after {
            content: '';
            position: absolute;
            left: 27px;
            top: 72px;
            bottom: -24px;
            width: 2px;
            background: var(--border);
            border-radius: 2px;
        }

        .process-step-num {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: var(--primary);
            color: #ffffff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 1.3rem;
            flex-shrink: 0;
            z-index: 1;
            box-shadow: var(--shadow);
        }

        .process-step-content h4 {
            font-family: var(--font-heading);
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--secondary);
            margin-bottom: 6px;
        }

        .process-step-content p {
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.65;
            margin: 0;
            max-width: 500px;
        }

        /* FAQ */
        .faq-item {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            margin-bottom: 12px;
            overflow: hidden;
            transition: all var(--transition);
            box-shadow: var(--shadow-sm);
        }

        .faq-item:hover {
            border-color: var(--primary-light);
            box-shadow: var(--shadow);
        }

        .faq-question {
            width: 100%;
            text-align: left;
            padding: 18px 24px;
            font-size: 1rem;
            font-weight: 600;
            color: var(--secondary);
            background: none;
            border: none;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            transition: color var(--transition);
            font-family: inherit;
            line-height: 1.5;
        }

        .faq-question:hover {
            color: var(--primary);
        }

        .faq-question i {
            font-size: 0.85rem;
            color: var(--text-muted);
            transition: transform var(--transition);
        }

        .faq-answer {
            padding: 0 24px 20px;
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.7;
            display: none;
        }

        .faq-item.open .faq-answer {
            display: block;
        }

        .faq-item.open .faq-question i {
            transform: rotate(180deg);
            color: var(--primary);
        }

        .faq-item.open {
            border-color: var(--primary-light);
            box-shadow: var(--shadow);
        }

        /* CTA Section */
        .cta-section {
            background: linear-gradient(135deg, #1a56db 0%, #1e40af 50%, #0f172a 100%);
            border-radius: var(--radius-xl);
            padding: 60px 48px;
            text-align: center;
            color: #ffffff;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
            opacity: 0.1;
            z-index: 0;
        }

        .cta-section>* {
            position: relative;
            z-index: 1;
        }

        .cta-section h2 {
            font-family: var(--font-heading);
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 12px;
            letter-spacing: -0.01em;
        }

        .cta-section p {
            font-size: 1.05rem;
            opacity: 0.85;
            margin-bottom: 28px;
            line-height: 1.65;
            max-width: 560px;
            margin-left: auto;
            margin-right: auto;
        }

        .btn-cta-large {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 16px 40px;
            font-size: 1.05rem;
            font-weight: 700;
            color: #0f172a;
            background: #ffffff;
            border-radius: 50px;
            text-decoration: none;
            transition: all var(--transition);
            border: none;
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
            letter-spacing: 0.02em;
        }

        .btn-cta-large:hover {
            background: #fbbf24;
            color: #0f172a;
            transform: translateY(-3px);
            box-shadow: 0 14px 40px rgba(0, 0, 0, 0.3);
        }

        /* Review Cards */
        .review-card {
            background: var(--surface);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            padding: 28px;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            height: 100%;
        }

        .review-card:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--primary-light);
        }

        .review-stars {
            color: #f59e0b;
            font-size: 0.9rem;
            margin-bottom: 12px;
            letter-spacing: 2px;
        }

        .review-text {
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 16px;
            font-style: italic;
        }

        .review-author {
            font-weight: 600;
            color: var(--secondary);
            font-size: 0.9rem;
        }

        .review-author span {
            font-weight: 400;
            color: var(--text-muted);
            font-size: 0.8rem;
        }

        /* Stats Grid */
        .stat-card {
            background: var(--surface);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            padding: 28px 24px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            height: 100%;
        }

        .stat-card:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--primary-light);
            transform: translateY(-3px);
        }

        .stat-card .stat-number-lg {
            font-size: 2.6rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1;
            margin-bottom: 6px;
            letter-spacing: -0.02em;
        }

        .stat-card .stat-label-sm {
            font-size: 0.9rem;
            color: var(--text-secondary);
            font-weight: 500;
        }

        /* Footer */
        .site-footer {
            background: var(--secondary);
            color: #cbd5e1;
            padding: 56px 0 28px;
            font-size: 0.9rem;
            line-height: 1.7;
        }

        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 36px;
            margin-bottom: 36px;
        }

        .site-footer h4 {
            font-family: var(--font-heading);
            font-size: 1rem;
            font-weight: 700;
            color: #ffffff;
            margin-bottom: 14px;
            letter-spacing: 0.01em;
        }

        .footer-logo-text {
            font-size: 1.25rem !important;
            font-weight: 700 !important;
            color: #ffffff !important;
            margin-bottom: 8px !important;
        }

        .site-footer ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .site-footer ul li {
            margin-bottom: 8px;
        }

        .site-footer ul li a {
            color: #94a3b8;
            text-decoration: none;
            transition: color var(--transition);
            font-size: 0.88rem;
        }

        .site-footer ul li a:hover {
            color: #ffffff;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            justify-content: space-between;
            align-items: center;
            font-size: 0.8rem;
            color: #94a3b8;
        }

        .footer-bottom a {
            color: #94a3b8;
            text-decoration: none;
            transition: color var(--transition);
        }

        .footer-bottom a:hover {
            color: #ffffff;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .nav-main {
                gap: 2px;
            }
            .nav-main a {
                padding: 7px 10px;
                font-size: 0.82rem;
            }
            .desktop-only {
                display: none;
            }
            .section-title {
                font-size: 1.8rem;
            }
            .hero-nickname {
                font-size: 2rem;
            }
            .hero-stats-row {
                gap: 18px;
            }
            .hero-stat-badge {
                min-width: 100px;
                padding: 12px 18px;
            }
            .hero-stat-number {
                font-size: 1.5rem;
            }
            .site-footer .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
            .cta-section {
                padding: 44px 28px;
            }
            .cta-section h2 {
                font-size: 1.6rem;
            }
        }

        @media (max-width: 768px) {
            .nav-main {
                display: none;
                position: absolute;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background: #ffffff;
                flex-direction: column;
                padding: 16px;
                border-bottom: 1px solid var(--border);
                box-shadow: var(--shadow-md);
                z-index: 999;
                gap: 0;
            }
            .nav-main.open {
                display: flex;
            }
            .nav-main a {
                padding: 12px 16px;
                width: 100%;
                border-radius: var(--radius-sm);
                font-size: 0.95rem;
            }
            .mobile-menu-toggle {
                display: block;
            }
            .desktop-only {
                display: none;
            }
            .section {
                padding: 56px 0;
            }
            .section-title {
                font-size: 1.55rem;
            }
            .section-desc {
                font-size: 0.95rem;
            }
            .hero-events {
                padding: 50px 0 60px;
            }
            .hero-nickname {
                font-size: 1.7rem;
            }
            .hero-nickname-sub {
                font-size: 0.95rem;
            }
            .hero-stats-row {
                gap: 12px;
                flex-direction: row;
                flex-wrap: wrap;
            }
            .hero-stat-badge {
                min-width: 80px;
                padding: 10px 14px;
                flex: 1 1 auto;
            }
            .hero-stat-number {
                font-size: 1.3rem;
            }
            .hero-stat-label {
                font-size: 0.7rem;
            }
            .hero-avatar-badge {
                width: 80px;
                height: 80px;
            }
            .hero-avatar-badge i {
                font-size: 2rem;
            }
            .hero-cta-group {
                flex-direction: column;
                align-items: center;
                width: 100%;
            }
            .btn-hero-primary,
            .btn-hero-outline {
                width: 100%;
                justify-content: center;
                padding: 12px 28px;
                font-size: 0.95rem;
            }
            .site-footer .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 8px;
            }
            .cta-section {
                padding: 36px 20px;
                border-radius: var(--radius-lg);
            }
            .cta-section h2 {
                font-size: 1.4rem;
            }
            .cta-section p {
                font-size: 0.9rem;
            }
            .btn-cta-large {
                padding: 14px 30px;
                font-size: 0.95rem;
                width: 100%;
                justify-content: center;
            }
            .process-step {
                gap: 14px;
            }
            .process-step-num {
                width: 44px;
                height: 44px;
                font-size: 1.1rem;
            }
            .process-step:not(:last-child)::after {
                left: 21px;
                top: 58px;
            }
            .card-event-footer {
                flex-direction: column;
                gap: 10px;
                align-items: stretch;
                text-align: center;
            }
            .btn-card {
                justify-content: center;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .section-title {
                font-size: 1.35rem;
            }
            .hero-nickname {
                font-size: 1.4rem;
            }
            .hero-stats-row {
                gap: 8px;
            }
            .hero-stat-badge {
                padding: 8px 10px;
                min-width: 60px;
            }
            .hero-stat-number {
                font-size: 1.1rem;
            }
            .hero-stat-label {
                font-size: 0.65rem;
            }
            .hero-avatar-badge {
                width: 64px;
                height: 64px;
            }
            .hero-avatar-badge i {
                font-size: 1.6rem;
            }
            .section-header {
                margin-bottom: 32px;
            }
            .stat-card .stat-number-lg {
                font-size: 2rem;
            }
            .review-card {
                padding: 20px;
            }
            .faq-question {
                padding: 14px 16px;
                font-size: 0.9rem;
            }
            .faq-answer {
                padding: 0 16px 14px;
                font-size: 0.85rem;
            }
        }

/* roulang page: category2 */
:root {
            --primary: #1a56db;
            --primary-dark: #1e40af;
            --primary-light: #dbeafe;
            --primary-50: #eff6ff;
            --secondary: #0f172a;
            --accent: #f59e0b;
            --accent-dark: #d97706;
            --accent-light: #fef3c7;
            --bg: #f8fafc;
            --bg-alt: #f1f5f9;
            --surface: #ffffff;
            --text: #1e293b;
            --text-secondary: #64748b;
            --text-muted: #94a3b8;
            --border: #e2e8f0;
            --border-light: #f1f5f9;
            --radius-sm: 6px;
            --radius: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.04);
            --shadow: 0 4px 24px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 8px 32px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.10);
            --shadow-xl: 0 24px 64px rgba(0, 0, 0, 0.12);
            --transition: 0.2s ease;
            --transition-slow: 0.35s ease;
            --font-heading: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --font-body: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --max-width: 1200px;
            --nav-height: 68px;
            --section-gap: 80px;
            --section-gap-sm: 48px;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

        body {
            font-family: var(--font-body);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            min-height: 100vh;
            overflow-x: hidden;
            margin: 0;
            padding: 0;
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition);
        }

        a:hover {
            color: var(--primary-dark);
        }

        a:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 3px;
            border-radius: 3px;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button {
            cursor: pointer;
            font-family: inherit;
        }

        input {
            font-family: inherit;
        }

        ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-family: var(--font-heading);
            color: var(--secondary);
            line-height: 1.3;
            margin-top: 0;
        }

        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        .section {
            padding: var(--section-gap) 0;
        }

        .section-sm {
            padding: var(--section-gap-sm) 0;
        }

        .section-alt {
            background: var(--bg-alt);
        }

        .section-dark {
            background: var(--secondary);
            color: #ffffff;
        }

        .section-primary-light {
            background: var(--primary-50);
        }

        .section-label {
            display: inline-block;
            font-size: 0.82rem;
            font-weight: 700;
            letter-spacing: 0.06em;
            text-transform: uppercase;
            color: var(--primary);
            background: var(--primary-light);
            padding: 6px 16px;
            border-radius: 20px;
            margin-bottom: 12px;
        }

        .section-title {
            font-family: var(--font-heading);
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--secondary);
            line-height: 1.3;
            margin-bottom: 16px;
            letter-spacing: -0.01em;
        }

        .section-title.light {
            color: #ffffff;
        }

        .section-desc {
            font-size: 1.05rem;
            color: var(--text-secondary);
            line-height: 1.75;
            max-width: 720px;
            margin: 0 auto 0 0;
        }

        .section-desc.light {
            color: #cbd5e1;
        }

        .section-header {
            margin-bottom: 48px;
        }

        .section-header.centered {
            text-align: center;
        }

        .section-header.centered .section-desc {
            margin-left: auto;
            margin-right: auto;
        }

        /* Header & Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            height: var(--nav-height);
            display: flex;
            align-items: center;
        }

        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
        }

        .logo-wrap {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .logo-icon {
            width: 40px;
            height: 40px;
            background: var(--primary);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 700;
            font-size: 1.1rem;
            flex-shrink: 0;
        }

        .logo-text {
            font-family: var(--font-heading);
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--secondary);
            letter-spacing: -0.01em;
            white-space: nowrap;
        }

        .logo-text a {
            color: inherit;
            text-decoration: none;
        }

        .logo-text a:hover {
            color: var(--primary);
        }

        .nav-main {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: wrap;
        }

        .nav-main a {
            display: inline-block;
            padding: 8px 14px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: var(--radius-sm);
            transition: all var(--transition);
            white-space: nowrap;
            text-decoration: none;
        }

        .nav-main a:hover {
            color: var(--primary);
            background: var(--primary-50);
        }

        .nav-main a.active {
            color: var(--primary);
            background: var(--primary-light);
            font-weight: 600;
        }

        .nav-cta-btn {
            display: inline-block;
            padding: 10px 22px;
            font-size: 0.9rem;
            font-weight: 600;
            color: #ffffff !important;
            background: var(--primary);
            border-radius: 25px;
            transition: all var(--transition);
            white-space: nowrap;
            text-decoration: none;
            flex-shrink: 0;
            box-shadow: 0 4px 14px rgba(26, 86, 219, 0.3);
        }

        .nav-cta-btn:hover {
            background: var(--primary-dark);
            box-shadow: 0 6px 20px rgba(26, 86, 219, 0.4);
            transform: translateY(-1px);
            color: #ffffff !important;
        }

        .mobile-menu-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--secondary);
            padding: 8px;
            border-radius: var(--radius-sm);
            transition: background var(--transition);
        }

        .mobile-menu-toggle:hover {
            background: var(--bg-alt);
        }

        /* Hero Section - 众筹预热风格 */
        .hero-crowdfunding {
            position: relative;
            background: linear-gradient(160deg, #0f172a 0%, #1e3a5f 40%, #1a4b8c 70%, #0f172a 100%);
            color: #ffffff;
            padding: 70px 0 80px;
            overflow: hidden;
            min-height: 580px;
            display: flex;
            align-items: center;
        }

        .hero-crowdfunding::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            opacity: 0.18;
            z-index: 0;
        }

        .hero-crowdfunding::after {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 700px;
            height: 700px;
            background: radial-gradient(circle, rgba(26, 86, 219, 0.25) 0%, transparent 70%);
            border-radius: 50%;
            z-index: 0;
            pointer-events: none;
        }

        .hero-crowdfunding .container {
            position: relative;
            z-index: 1;
        }

        .hero-cf-grid {
            display: grid;
            grid-template-columns: 1fr 1fr 1fr;
            gap: 40px;
            align-items: center;
        }

        .hero-cf-left {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .hero-cf-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(245, 158, 11, 0.2);
            border: 1px solid rgba(245, 158, 11, 0.4);
            color: var(--accent);
            padding: 8px 18px;
            border-radius: 25px;
            font-size: 0.85rem;
            font-weight: 600;
            width: fit-content;
            animation: pulse-badge 2.5s ease-in-out infinite;
        }

        @keyframes pulse-badge {
            0%,
            100% {
                box-shadow: 0 0 0 0 rgba(245, 158, 11, 0.35);
            }
            50% {
                box-shadow: 0 0 0 14px rgba(245, 158, 11, 0);
            }
        }

        .hero-cf-badge i {
            font-size: 0.75rem;
        }

        .hero-cf-title {
            font-family: var(--font-heading);
            font-size: 2.6rem;
            font-weight: 800;
            color: #ffffff;
            line-height: 1.25;
            letter-spacing: -0.02em;
            margin: 0;
        }

        .hero-cf-title span {
            color: var(--accent);
        }

        .hero-cf-desc {
            font-size: 1.08rem;
            color: #cbd5e1;
            line-height: 1.7;
            margin: 0;
            max-width: 380px;
        }

        .hero-cf-stats-row {
            display: flex;
            gap: 28px;
            flex-wrap: wrap;
        }

        .hero-cf-stat {
            display: flex;
            flex-direction: column;
            gap: 2px;
        }

        .hero-cf-stat-num {
            font-size: 1.6rem;
            font-weight: 700;
            color: #ffffff;
            font-family: var(--font-heading);
        }

        .hero-cf-stat-label {
            font-size: 0.8rem;
            color: #94a3b8;
        }

        .hero-cf-btn {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 32px;
            font-size: 1rem;
            font-weight: 700;
            color: #ffffff;
            background: var(--accent);
            border: none;
            border-radius: 30px;
            cursor: pointer;
            transition: all var(--transition);
            width: fit-content;
            box-shadow: 0 8px 28px rgba(245, 158, 11, 0.35);
            text-decoration: none;
        }

        .hero-cf-btn:hover {
            background: #f59e0b;
            box-shadow: 0 12px 36px rgba(245, 158, 11, 0.5);
            transform: translateY(-2px);
            color: #ffffff;
        }

        /* 进度环 */
        .hero-cf-center {
            display: flex;
            justify-content: center;
            align-items: center;
        }

        .progress-ring-wrap {
            position: relative;
            width: 220px;
            height: 220px;
        }

        .progress-ring {
            transform: rotate(-90deg);
            width: 220px;
            height: 220px;
        }

        .progress-ring-bg {
            fill: none;
            stroke: rgba(255, 255, 255, 0.1);
            stroke-width: 12;
        }

        .progress-ring-fill {
            fill: none;
            stroke: var(--accent);
            stroke-width: 12;
            stroke-linecap: round;
            transition: stroke-dashoffset 1.5s ease;
        }

        .progress-ring-inner {
            fill: none;
            stroke: rgba(245, 158, 11, 0.35);
            stroke-width: 4;
            stroke-linecap: round;
            stroke-dasharray: 8 12;
        }

        .progress-ring-text {
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            text-align: center;
        }

        .progress-ring-percent {
            font-size: 2.8rem;
            font-weight: 800;
            color: #ffffff;
            font-family: var(--font-heading);
            line-height: 1;
        }

        .progress-ring-sub {
            font-size: 0.82rem;
            color: #94a3b8;
            margin-top: 4px;
        }

        /* 档位预览 */
        .hero-cf-right {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .hero-cf-tier {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: var(--radius);
            padding: 16px 18px;
            cursor: pointer;
            transition: all var(--transition);
            backdrop-filter: blur(6px);
            display: flex;
            align-items: center;
            gap: 14px;
        }

        .hero-cf-tier:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: rgba(255, 255, 255, 0.25);
            transform: translateX(4px);
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.25);
        }

        .hero-cf-tier.featured {
            background: rgba(26, 86, 219, 0.2);
            border-color: rgba(26, 86, 219, 0.5);
            box-shadow: 0 0 24px rgba(26, 86, 219, 0.2);
        }

        .hero-cf-tier-icon {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            font-size: 1.1rem;
            color: #ffffff;
        }

        .hero-cf-tier-icon.tier-bronze {
            background: linear-gradient(135deg, #b87351, #d4946a);
        }
        .hero-cf-tier-icon.tier-silver {
            background: linear-gradient(135deg, #8a99a8, #b0bec5);
        }
        .hero-cf-tier-icon.tier-gold {
            background: linear-gradient(135deg, #d4a017, #f0c75e);
        }

        .hero-cf-tier-info {
            flex: 1;
            min-width: 0;
        }

        .hero-cf-tier-name {
            font-weight: 700;
            font-size: 0.95rem;
            color: #ffffff;
            margin: 0;
        }

        .hero-cf-tier-reward {
            font-size: 0.78rem;
            color: #94a3b8;
            margin: 2px 0 0 0;
        }

        .hero-cf-tier-badge {
            font-size: 0.7rem;
            font-weight: 700;
            padding: 4px 10px;
            border-radius: 12px;
            white-space: nowrap;
            flex-shrink: 0;
        }

        .hero-cf-tier-badge.hot {
            background: rgba(245, 59, 87, 0.25);
            color: #ff6b81;
        }
        .hero-cf-tier-badge.limited {
            background: rgba(245, 158, 11, 0.25);
            color: #f5c542;
        }
        .hero-cf-tier-badge.best {
            background: rgba(34, 197, 94, 0.25);
            color: #4ade80;
        }

        /* 通用按钮 */
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 26px;
            font-size: 0.95rem;
            font-weight: 600;
            border-radius: 25px;
            border: none;
            cursor: pointer;
            transition: all var(--transition);
            text-decoration: none;
            font-family: inherit;
            white-space: nowrap;
        }

        .btn-primary {
            background: var(--primary);
            color: #ffffff;
            box-shadow: 0 4px 16px rgba(26, 86, 219, 0.3);
        }

        .btn-primary:hover {
            background: var(--primary-dark);
            box-shadow: 0 8px 24px rgba(26, 86, 219, 0.4);
            transform: translateY(-2px);
            color: #ffffff;
        }

        .btn-accent {
            background: var(--accent);
            color: #ffffff;
            box-shadow: 0 4px 16px rgba(245, 158, 11, 0.3);
        }

        .btn-accent:hover {
            background: var(--accent-dark);
            box-shadow: 0 8px 24px rgba(245, 158, 11, 0.4);
            transform: translateY(-2px);
            color: #ffffff;
        }

        .btn-outline {
            background: transparent;
            color: var(--primary);
            border: 2px solid var(--primary);
        }

        .btn-outline:hover {
            background: var(--primary);
            color: #ffffff;
        }

        .btn-outline-light {
            background: transparent;
            color: #ffffff;
            border: 2px solid rgba(255, 255, 255, 0.4);
        }

        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: #ffffff;
            color: #ffffff;
        }

        .btn-lg {
            padding: 16px 36px;
            font-size: 1.05rem;
            border-radius: 30px;
        }

        /* 卡片 */
        .card {
            background: var(--surface);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow);
            overflow: hidden;
            transition: all var(--transition);
            border: 1px solid var(--border-light);
            height: 100%;
        }

        .card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
        }

        .card-image {
            width: 100%;
            aspect-ratio: 16 / 10;
            object-fit: cover;
            display: block;
        }

        .card-body {
            padding: 24px;
        }

        .card-tag {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 14px;
            margin-bottom: 10px;
        }

        .card-tag.blue {
            background: var(--primary-light);
            color: var(--primary);
        }
        .card-tag.amber {
            background: var(--accent-light);
            color: var(--accent-dark);
        }
        .card-tag.green {
            background: #dcfce7;
            color: #16a34a;
        }

        .card-title {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--secondary);
            margin-bottom: 8px;
            line-height: 1.35;
        }

        .card-desc {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.6;
            margin-bottom: 16px;
        }

        .card-link {
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: gap var(--transition);
        }

        .card-link:hover {
            gap: 10px;
            color: var(--primary-dark);
        }

        /* 数据统计条 */
        .stats-bar {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .stat-item {
            text-align: center;
            padding: 28px 16px;
            background: var(--surface);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow);
            border: 1px solid var(--border-light);
            transition: all var(--transition);
        }

        .stat-item:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
        }

        .stat-num {
            font-size: 2.6rem;
            font-weight: 800;
            color: var(--primary);
            font-family: var(--font-heading);
            line-height: 1;
        }

        .stat-num sup {
            font-size: 1.2rem;
            font-weight: 600;
        }

        .stat-label {
            font-size: 0.9rem;
            color: var(--text-secondary);
            margin-top: 8px;
        }

        /* 流程步骤 */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            position: relative;
        }

        .step-card {
            text-align: center;
            position: relative;
            padding: 32px 20px;
            background: var(--surface);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow);
            border: 1px solid var(--border-light);
            transition: all var(--transition);
        }

        .step-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
        }

        .step-number {
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: var(--primary);
            color: #ffffff;
            font-size: 1.3rem;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
            font-family: var(--font-heading);
        }

        .step-title {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--secondary);
            margin-bottom: 8px;
        }

        .step-desc {
            font-size: 0.85rem;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        /* FAQ */
        .faq-list {
            max-width: 820px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--surface);
            border-radius: var(--radius);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            margin-bottom: 12px;
            overflow: hidden;
            transition: all var(--transition);
        }

        .faq-item:hover {
            box-shadow: var(--shadow);
        }

        .faq-question {
            padding: 20px 24px;
            font-weight: 700;
            font-size: 1rem;
            color: var(--secondary);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            user-select: none;
            transition: color var(--transition);
        }

        .faq-question:hover {
            color: var(--primary);
        }

        .faq-question i {
            transition: transform var(--transition);
            color: var(--text-muted);
            flex-shrink: 0;
        }

        .faq-item.open .faq-question i {
            transform: rotate(180deg);
            color: var(--primary);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 24px 20px;
        }

        .faq-answer p {
            font-size: 0.93rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin: 0;
        }

        /* CTA Banner */
        .cta-banner {
            background: linear-gradient(135deg, var(--primary) 0%, #1e40af 100%);
            border-radius: var(--radius-xl);
            padding: 56px 48px;
            text-align: center;
            color: #ffffff;
            position: relative;
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }

        .cta-banner::before {
            content: '';
            position: absolute;
            top: -30%;
            right: -10%;
            width: 350px;
            height: 350px;
            background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-banner-title {
            font-size: 2rem;
            font-weight: 800;
            color: #ffffff;
            margin-bottom: 12px;
            position: relative;
            z-index: 1;
        }

        .cta-banner-desc {
            font-size: 1.05rem;
            color: rgba(255, 255, 255, 0.8);
            margin-bottom: 28px;
            position: relative;
            z-index: 1;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }

        .cta-banner .btn {
            position: relative;
            z-index: 1;
        }

        /* 评价卡片 */
        .testimonial-card {
            background: var(--surface);
            border-radius: var(--radius-lg);
            padding: 28px;
            box-shadow: var(--shadow);
            border: 1px solid var(--border-light);
            transition: all var(--transition);
            height: 100%;
        }

        .testimonial-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
        }

        .testimonial-stars {
            color: var(--accent);
            margin-bottom: 12px;
            font-size: 0.95rem;
        }

        .testimonial-text {
            font-size: 0.93rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 16px;
            font-style: italic;
        }

        .testimonial-author {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .testimonial-avatar {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-weight: 700;
            font-size: 0.9rem;
            flex-shrink: 0;
        }

        .testimonial-name {
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--secondary);
        }

        .testimonial-role {
            font-size: 0.78rem;
            color: var(--text-muted);
        }

        /* 特色亮点 */
        .feature-icon-box {
            width: 56px;
            height: 56px;
            border-radius: var(--radius);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            margin-bottom: 16px;
            flex-shrink: 0;
        }

        .feature-icon-box.blue {
            background: var(--primary-light);
            color: var(--primary);
        }
        .feature-icon-box.amber {
            background: var(--accent-light);
            color: var(--accent-dark);
        }
        .feature-icon-box.green {
            background: #dcfce7;
            color: #16a34a;
        }
        .feature-icon-box.purple {
            background: #ede9fe;
            color: #7c3aed;
        }
        .feature-icon-box.rose {
            background: #ffe4e6;
            color: #e11d48;
        }
        .feature-icon-box.teal {
            background: #ccfbf1;
            color: #0d9488;
        }

        /* 档位详情卡片 */
        .tier-detail-card {
            background: var(--surface);
            border-radius: var(--radius-lg);
            padding: 32px 24px;
            box-shadow: var(--shadow);
            border: 2px solid var(--border-light);
            text-align: center;
            transition: all var(--transition);
            height: 100%;
            position: relative;
        }

        .tier-detail-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
        }

        .tier-detail-card.popular {
            border-color: var(--accent);
            box-shadow: var(--shadow-md);
            background: #fffdf5;
        }

        .tier-detail-card.popular::before {
            content: '最受欢迎';
            position: absolute;
            top: -14px;
            left: 50%;
            transform: translateX(-50%);
            background: var(--accent);
            color: #ffffff;
            font-size: 0.75rem;
            font-weight: 700;
            padding: 5px 16px;
            border-radius: 14px;
            white-space: nowrap;
        }

        .tier-badge-icon {
            width: 60px;
            height: 60px;
            border-radius: 50%;
            margin: 0 auto 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            color: #ffffff;
            font-weight: 700;
        }

        /* Footer */
        .site-footer {
            background: var(--secondary);
            color: #cbd5e1;
            padding: 56px 0 32px;
            font-size: 0.9rem;
        }

        .site-footer a {
            color: #cbd5e1;
            transition: color var(--transition);
            text-decoration: none;
        }

        .site-footer a:hover {
            color: #ffffff;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-col h4 {
            color: #ffffff;
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 16px;
            font-family: var(--font-heading);
        }

        .footer-logo-text {
            color: #ffffff !important;
            font-size: 1.25rem !important;
            font-weight: 700 !important;
            margin-bottom: 12px !important;
        }

        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .footer-col ul li {
            margin-bottom: 8px;
        }

        .footer-col ul li a {
            font-size: 0.85rem;
            color: #94a3b8;
            transition: color var(--transition);
        }

        .footer-col ul li a:hover {
            color: #ffffff;
        }

        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            padding-top: 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            font-size: 0.8rem;
            color: #94a3b8;
        }

        .footer-bottom a {
            color: #94a3b8;
            font-size: 0.8rem;
        }

        .footer-bottom a:hover {
            color: #ffffff;
        }

        /* 响应式 */
        @media (max-width: 1024px) {
            .hero-cf-grid {
                grid-template-columns: 1fr 1fr;
                gap: 30px;
            }
            .hero-cf-right {
                grid-column: 1 / -1;
                flex-direction: row;
                flex-wrap: wrap;
                gap: 12px;
            }
            .hero-cf-tier {
                flex: 1 1 180px;
                min-width: 160px;
            }
            .hero-cf-center {
                order: -1;
                justify-content: center;
            }
            .hero-cf-left {
                text-align: center;
                align-items: center;
            }
            .hero-cf-desc {
                max-width: 100%;
            }
            .hero-cf-stats-row {
                justify-content: center;
            }
            .hero-cf-title {
                font-size: 2.2rem;
            }
            .stats-bar {
                grid-template-columns: repeat(2, 1fr);
            }
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .section-title {
                font-size: 1.8rem;
            }
            .nav-main {
                gap: 2px;
            }
            .nav-main a {
                padding: 6px 10px;
                font-size: 0.82rem;
            }
            .desktop-only {
                display: none;
            }
        }

        @media (max-width: 768px) {
            .hero-cf-grid {
                grid-template-columns: 1fr;
                gap: 24px;
                text-align: center;
            }
            .hero-cf-left {
                align-items: center;
                text-align: center;
            }
            .hero-cf-desc {
                max-width: 100%;
            }
            .hero-cf-stats-row {
                justify-content: center;
            }
            .hero-cf-center {
                order: -1;
            }
            .hero-cf-right {
                flex-direction: column;
                gap: 10px;
            }
            .hero-cf-tier {
                flex: 1 1 auto;
                min-width: 0;
            }
            .hero-cf-title {
                font-size: 1.8rem;
            }
            .hero-crowdfunding {
                padding: 40px 0 50px;
            }
            .progress-ring-wrap {
                width: 170px;
                height: 170px;
            }
            .progress-ring {
                width: 170px;
                height: 170px;
            }
            .progress-ring-percent {
                font-size: 2.2rem;
            }
            .nav-main {
                display: none;
                position: absolute;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background: #ffffff;
                flex-direction: column;
                padding: 16px;
                box-shadow: var(--shadow-lg);
                border-bottom: 1px solid var(--border);
                gap: 4px;
                z-index: 999;
            }
            .nav-main.open {
                display: flex;
            }
            .nav-main a {
                padding: 12px 16px;
                width: 100%;
                font-size: 0.9rem;
                border-radius: var(--radius-sm);
            }
            .mobile-menu-toggle {
                display: block;
            }
            .desktop-only {
                display: none;
            }
            .stats-bar {
                grid-template-columns: repeat(2, 1fr);
                gap: 14px;
            }
            .stat-num {
                font-size: 2rem;
            }
            .steps-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 8px;
            }
            .section {
                padding: 48px 0;
            }
            .section-title {
                font-size: 1.6rem;
            }
            .cta-banner {
                padding: 36px 24px;
            }
            .cta-banner-title {
                font-size: 1.5rem;
            }
            .section-header {
                margin-bottom: 32px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .hero-cf-title {
                font-size: 1.5rem;
            }
            .hero-cf-desc {
                font-size: 0.9rem;
            }
            .hero-cf-stats-row {
                gap: 16px;
            }
            .hero-cf-stat-num {
                font-size: 1.3rem;
            }
            .stats-bar {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .stat-item {
                padding: 20px 12px;
            }
            .stat-num {
                font-size: 1.7rem;
            }
            .section-title {
                font-size: 1.4rem;
            }
            .btn-lg {
                padding: 14px 28px;
                font-size: 0.95rem;
            }
            .hero-cf-btn {
                padding: 12px 24px;
                font-size: 0.9rem;
            }
            .tier-detail-card {
                padding: 24px 16px;
            }
        }

/* roulang page: category1 */
:root {
            --primary: #1a56db;
            --primary-dark: #1e40af;
            --primary-light: #dbeafe;
            --primary-50: #eff6ff;
            --secondary: #0f172a;
            --accent: #f59e0b;
            --accent-dark: #d97706;
            --accent-light: #fef3c7;
            --bg: #f8fafc;
            --bg-alt: #f1f5f9;
            --surface: #ffffff;
            --text: #1e293b;
            --text-secondary: #64748b;
            --text-muted: #94a3b8;
            --border: #e2e8f0;
            --border-light: #f1f5f9;
            --radius-sm: 6px;
            --radius: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.04);
            --shadow: 0 4px 24px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 8px 32px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.10);
            --shadow-xl: 0 24px 64px rgba(0, 0, 0, 0.12);
            --transition: 0.2s ease;
            --transition-slow: 0.35s ease;
            --font-heading: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --font-body: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --max-width: 1200px;
            --nav-height: 68px;
            --section-gap: 80px;
            --section-gap-sm: 48px;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

        body {
            font-family: var(--font-body);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            min-height: 100vh;
            overflow-x: hidden;
            margin: 0;
            padding: 0;
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition);
        }

        a:hover {
            color: var(--primary-dark);
        }

        a:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 3px;
            border-radius: 3px;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button {
            cursor: pointer;
            font-family: inherit;
        }

        input {
            font-family: inherit;
        }

        ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-family: var(--font-heading);
            margin: 0;
            line-height: 1.3;
        }

        p {
            margin: 0;
        }

        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        .section {
            padding: var(--section-gap) 0;
        }
        .section-sm {
            padding: var(--section-gap-sm) 0;
        }
        .section-alt {
            background: var(--bg-alt);
        }
        .section-dark {
            background: var(--secondary);
            color: #ffffff;
        }
        .section-primary-light {
            background: var(--primary-50);
        }

        .section-label {
            display: inline-block;
            font-size: 0.82rem;
            font-weight: 700;
            letter-spacing: 0.06em;
            text-transform: uppercase;
            color: var(--primary);
            background: var(--primary-light);
            padding: 6px 16px;
            border-radius: 20px;
            margin-bottom: 12px;
        }

        .section-title {
            font-family: var(--font-heading);
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--secondary);
            line-height: 1.3;
            margin-bottom: 16px;
            letter-spacing: -0.01em;
        }

        .section-desc {
            font-size: 1.05rem;
            color: var(--text-secondary);
            line-height: 1.75;
            max-width: 720px;
            margin: 0 auto 0 0;
        }

        .section-header {
            margin-bottom: 48px;
        }
        .section-header.centered {
            text-align: center;
        }
        .section-header.centered .section-desc {
            margin-left: auto;
            margin-right: auto;
        }

        /* Header & Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            height: var(--nav-height);
            display: flex;
            align-items: center;
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
        }
        .logo-wrap {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .logo-icon {
            width: 40px;
            height: 40px;
            background: var(--primary);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 700;
            font-size: 1.1rem;
            flex-shrink: 0;
        }
        .logo-text {
            font-family: var(--font-heading);
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--secondary);
            letter-spacing: -0.01em;
            white-space: nowrap;
        }
        .logo-text a {
            color: inherit;
            text-decoration: none;
        }
        .logo-text a:hover {
            color: var(--primary);
        }
        .nav-main {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: wrap;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .nav-main a {
            display: inline-block;
            padding: 8px 15px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: var(--radius-sm);
            transition: all var(--transition);
            white-space: nowrap;
            text-decoration: none;
        }
        .nav-main a:hover {
            color: var(--primary);
            background: var(--primary-50);
        }
        .nav-main a.active {
            color: var(--primary);
            background: var(--primary-light);
            font-weight: 600;
        }

        .nav-cta-btn {
            display: inline-block;
            padding: 10px 22px;
            font-size: 0.9rem;
            font-weight: 600;
            color: #ffffff !important;
            background: var(--primary);
            border-radius: 24px;
            transition: all var(--transition);
            white-space: nowrap;
            flex-shrink: 0;
            text-decoration: none;
        }
        .nav-cta-btn:hover {
            background: var(--primary-dark);
            color: #ffffff !important;
            box-shadow: var(--shadow-md);
            transform: translateY(-1px);
        }

        .mobile-menu-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--text);
            padding: 8px;
            border-radius: var(--radius-sm);
            transition: all var(--transition);
        }
        .mobile-menu-toggle:hover {
            background: var(--bg-alt);
            color: var(--primary);
        }

        .desktop-only {
            display: inline-block;
        }

        /* Hero Section */
        .hero-section {
            position: relative;
            background: linear-gradient(135deg, #0f172a 0%, #1e3a5f 40%, #1a4a7a 70%, #0f172a 100%);
            color: #ffffff;
            padding: 90px 0 100px;
            overflow: hidden;
            min-height: 580px;
            display: flex;
            align-items: center;
        }
        .hero-bg-overlay {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.18;
            z-index: 0;
        }
        .hero-section .container {
            position: relative;
            z-index: 1;
        }
        .hero-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 56px;
            align-items: center;
        }
        .hero-badge {
            display: inline-block;
            background: rgba(245, 158, 11, 0.2);
            border: 1px solid rgba(245, 158, 11, 0.4);
            color: var(--accent);
            font-size: 0.85rem;
            font-weight: 700;
            padding: 6px 16px;
            border-radius: 20px;
            margin-bottom: 16px;
            letter-spacing: 0.04em;
        }
        .hero-title {
            font-family: var(--font-heading);
            font-size: 2.8rem;
            font-weight: 800;
            color: #ffffff;
            line-height: 1.25;
            margin-bottom: 16px;
            letter-spacing: -0.02em;
        }
        .hero-title span {
            color: var(--accent);
        }
        .hero-desc {
            font-size: 1.1rem;
            color: #cbd5e1;
            line-height: 1.75;
            margin-bottom: 28px;
            max-width: 500px;
        }
        .hero-reward-cards {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            margin-bottom: 24px;
        }
        .hero-reward-card {
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: var(--radius);
            padding: 14px 18px;
            text-align: center;
            min-width: 100px;
            flex: 1;
            backdrop-filter: blur(4px);
        }
        .hero-reward-card .reward-num {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--accent);
            line-height: 1;
        }
        .hero-reward-card .reward-label {
            font-size: 0.78rem;
            color: #94a3b8;
            margin-top: 4px;
        }
        .hero-progress-wrap {
            margin-bottom: 24px;
            max-width: 440px;
        }
        .hero-progress-label {
            display: flex;
            justify-content: space-between;
            font-size: 0.85rem;
            color: #cbd5e1;
            margin-bottom: 8px;
        }
        .hero-progress-label strong {
            color: var(--accent);
        }
        .hero-progress-bar {
            height: 10px;
            background: rgba(255, 255, 255, 0.15);
            border-radius: 10px;
            overflow: hidden;
        }
        .hero-progress-fill {
            height: 100%;
            background: linear-gradient(90deg, var(--accent), #fbbf24);
            border-radius: 10px;
            width: 60%;
            transition: width 0.6s ease;
            position: relative;
        }
        .hero-progress-fill::after {
            content: '';
            position: absolute;
            right: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 18px;
            height: 18px;
            background: #fff;
            border-radius: 50%;
            border: 3px solid var(--accent);
        }
        .hero-cta-group {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }
        .btn-hero-primary {
            display: inline-block;
            padding: 14px 32px;
            font-size: 1rem;
            font-weight: 700;
            color: #ffffff;
            background: var(--accent);
            border: none;
            border-radius: 28px;
            cursor: pointer;
            transition: all var(--transition);
            text-decoration: none;
            letter-spacing: 0.02em;
            box-shadow: 0 6px 24px rgba(245, 158, 11, 0.35);
        }
        .btn-hero-primary:hover {
            background: var(--accent-dark);
            transform: translateY(-2px);
            box-shadow: 0 10px 32px rgba(245, 158, 11, 0.45);
            color: #ffffff;
        }
        .btn-hero-secondary {
            display: inline-block;
            padding: 14px 28px;
            font-size: 1rem;
            font-weight: 600;
            color: #ffffff;
            background: transparent;
            border: 2px solid rgba(255, 255, 255, 0.4);
            border-radius: 28px;
            cursor: pointer;
            transition: all var(--transition);
            text-decoration: none;
        }
        .btn-hero-secondary:hover {
            border-color: #ffffff;
            background: rgba(255, 255, 255, 0.08);
            color: #ffffff;
        }
        .hero-visual {
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
        }
        .hero-visual-card {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: var(--radius-lg);
            padding: 32px;
            backdrop-filter: blur(8px);
            text-align: center;
            width: 100%;
            max-width: 420px;
        }
        .hero-visual-card .visual-icon-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 16px;
            margin-bottom: 20px;
        }
        .hero-visual-card .visual-icon-item {
            background: rgba(255, 255, 255, 0.06);
            border-radius: var(--radius);
            padding: 20px 12px;
            text-align: center;
            transition: all var(--transition);
        }
        .hero-visual-card .visual-icon-item i {
            font-size: 2rem;
            color: var(--accent);
            margin-bottom: 6px;
        }
        .hero-visual-card .visual-icon-item span {
            display: block;
            font-size: 0.8rem;
            color: #cbd5e1;
            font-weight: 500;
        }
        .hero-visual-card .visual-stat {
            font-size: 2.4rem;
            font-weight: 800;
            color: #ffffff;
        }
        .hero-visual-card .visual-stat-label {
            font-size: 0.9rem;
            color: #94a3b8;
        }

        /* Game Category Cards */
        .game-cat-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .game-cat-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 28px 20px;
            text-align: center;
            transition: all var(--transition-slow);
            cursor: pointer;
            text-decoration: none;
            color: inherit;
            display: block;
            box-shadow: var(--shadow-sm);
        }
        .game-cat-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: var(--primary-light);
        }
        .game-cat-card .cat-icon {
            width: 56px;
            height: 56px;
            background: var(--primary-50);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 14px;
            font-size: 1.5rem;
            color: var(--primary);
            transition: all var(--transition);
        }
        .game-cat-card:hover .cat-icon {
            background: var(--primary);
            color: #fff;
            transform: scale(1.08);
        }
        .game-cat-card .cat-name {
            font-weight: 700;
            font-size: 1.05rem;
            color: var(--secondary);
            margin-bottom: 4px;
        }
        .game-cat-card .cat-count {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        /* Hot Game Cards */
        .hot-game-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .hot-game-card {
            background: var(--surface);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: all var(--transition-slow);
            border: 1px solid var(--border);
        }
        .hot-game-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
        }
        .hot-game-card .card-img-wrap {
            position: relative;
            height: 180px;
            overflow: hidden;
        }
        .hot-game-card .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .hot-game-card:hover .card-img-wrap img {
            transform: scale(1.06);
        }
        .hot-game-card .card-img-wrap .card-badge {
            position: absolute;
            top: 12px;
            left: 12px;
            background: var(--accent);
            color: #fff;
            font-size: 0.75rem;
            font-weight: 700;
            padding: 4px 12px;
            border-radius: 14px;
            z-index: 2;
        }
        .hot-game-card .card-body {
            padding: 20px;
        }
        .hot-game-card .card-body h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--secondary);
            margin-bottom: 6px;
        }
        .hot-game-card .card-body .card-meta {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-bottom: 10px;
        }
        .hot-game-card .card-body .card-stats {
            display: flex;
            gap: 16px;
            font-size: 0.82rem;
            color: var(--text-secondary);
        }
        .hot-game-card .card-body .card-stats i {
            color: var(--primary);
            margin-right: 3px;
        }

        /* Feature Highlights */
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .feature-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 32px 24px;
            transition: all var(--transition-slow);
            box-shadow: var(--shadow-sm);
            text-align: center;
        }
        .feature-card:hover {
            box-shadow: var(--shadow-md);
            border-color: transparent;
            transform: translateY(-3px);
        }
        .feature-card .feature-icon {
            width: 60px;
            height: 60px;
            background: var(--primary-50);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
            font-size: 1.6rem;
            color: var(--primary);
        }
        .feature-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--secondary);
            margin-bottom: 8px;
        }
        .feature-card p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        /* Stats Counter */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .stat-card {
            text-align: center;
            padding: 24px;
            background: var(--surface);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow);
            border: 1px solid var(--border);
        }
        .stat-card .stat-number {
            font-size: 2.6rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1;
            margin-bottom: 6px;
            font-family: var(--font-heading);
        }
        .stat-card .stat-label {
            font-size: 0.9rem;
            color: var(--text-secondary);
            font-weight: 500;
        }

        /* Process Steps */
        .process-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            position: relative;
        }
        .process-step {
            text-align: center;
            position: relative;
            z-index: 1;
        }
        .process-step .step-num {
            width: 48px;
            height: 48px;
            background: var(--primary);
            color: #fff;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 1.2rem;
            margin: 0 auto 14px;
            position: relative;
            z-index: 2;
        }
        .process-step h4 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--secondary);
            margin-bottom: 6px;
        }
        .process-step p {
            font-size: 0.85rem;
            color: var(--text-secondary);
            line-height: 1.5;
        }

        /* Testimonials */
        .testimonial-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .testimonial-card {
            background: var(--surface);
            border-radius: var(--radius-lg);
            padding: 28px;
            box-shadow: var(--shadow);
            border: 1px solid var(--border);
            transition: all var(--transition);
        }
        .testimonial-card:hover {
            box-shadow: var(--shadow-md);
        }
        .testimonial-card .t-stars {
            color: var(--accent);
            font-size: 0.9rem;
            margin-bottom: 10px;
        }
        .testimonial-card .t-text {
            font-size: 0.95rem;
            color: var(--text);
            line-height: 1.7;
            margin-bottom: 14px;
            font-style: italic;
        }
        .testimonial-card .t-author {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--secondary);
        }
        .testimonial-card .t-author span {
            color: var(--text-muted);
            font-weight: 400;
            font-size: 0.78rem;
        }

        /* FAQ */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            margin-bottom: 12px;
            overflow: hidden;
            transition: all var(--transition);
            box-shadow: var(--shadow-sm);
        }
        .faq-item:hover {
            box-shadow: var(--shadow);
        }
        .faq-question {
            padding: 18px 24px;
            font-weight: 700;
            font-size: 1rem;
            color: var(--secondary);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            user-select: none;
            background: var(--surface);
            transition: background var(--transition);
        }
        .faq-question:hover {
            background: var(--bg-alt);
        }
        .faq-question .faq-icon {
            transition: transform var(--transition);
            font-size: 0.85rem;
            color: var(--text-muted);
            flex-shrink: 0;
            margin-left: 12px;
        }
        .faq-item.open .faq-question .faq-icon {
            transform: rotate(180deg);
            color: var(--primary);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
            padding: 0 24px;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 24px 18px;
        }
        .faq-answer p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* CTA Section */
        .cta-section {
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 50%, #2563eb 100%);
            color: #ffffff;
            padding: 72px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.1;
            z-index: 0;
        }
        .cta-section .container {
            position: relative;
            z-index: 1;
        }
        .cta-section .section-title {
            color: #ffffff;
            margin-bottom: 12px;
        }
        .cta-section .section-desc {
            color: #cbd5e1;
            margin: 0 auto 28px;
            max-width: 600px;
        }
        .btn-cta-large {
            display: inline-block;
            padding: 16px 40px;
            font-size: 1.1rem;
            font-weight: 700;
            color: #ffffff;
            background: var(--accent);
            border: none;
            border-radius: 30px;
            cursor: pointer;
            transition: all var(--transition);
            text-decoration: none;
            letter-spacing: 0.02em;
            box-shadow: 0 8px 28px rgba(245, 158, 11, 0.4);
        }
        .btn-cta-large:hover {
            background: #fbbf24;
            transform: translateY(-3px);
            box-shadow: 0 14px 36px rgba(245, 158, 11, 0.5);
            color: #ffffff;
        }

        /* Footer */
        .site-footer {
            background: var(--secondary);
            color: #cbd5e1;
            padding: 56px 0 28px;
            font-size: 0.9rem;
        }
        .site-footer a {
            color: #94a3b8;
            transition: color var(--transition);
            text-decoration: none;
        }
        .site-footer a:hover {
            color: #ffffff;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 36px;
            margin-bottom: 36px;
        }
        .footer-col h4 {
            color: #ffffff;
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 16px;
            letter-spacing: 0.01em;
        }
        .footer-logo-text {
            font-family: var(--font-heading);
            font-size: 1.3rem;
            font-weight: 700;
            color: #ffffff !important;
            margin-bottom: 10px;
            letter-spacing: -0.01em;
        }
        .footer-col ul li {
            margin-bottom: 8px;
        }
        .footer-col ul li a {
            font-size: 0.85rem;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            font-size: 0.8rem;
            color: #64748b;
        }
        .footer-bottom a {
            color: #94a3b8;
            font-size: 0.8rem;
        }
        .footer-bottom a:hover {
            color: #ffffff;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .hero-grid {
                grid-template-columns: 1fr;
                gap: 40px;
            }
            .hero-visual {
                order: -1;
            }
            .hero-title {
                font-size: 2.2rem;
            }
            .game-cat-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .hot-game-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .feature-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .process-steps {
                grid-template-columns: repeat(2, 1fr);
            }
            .testimonial-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .section-title {
                font-size: 1.8rem;
            }
            .nav-main {
                gap: 2px;
            }
            .nav-main a {
                padding: 6px 10px;
                font-size: 0.8rem;
            }
            .desktop-only {
                display: none;
            }
        }

        @media (max-width: 768px) {
            .site-header {
                height: auto;
                min-height: 60px;
                padding: 8px 0;
            }
            .site-header .container {
                flex-wrap: wrap;
            }
            .nav-main {
                display: none;
                flex-direction: column;
                width: 100%;
                background: #fff;
                border-radius: var(--radius);
                box-shadow: var(--shadow-lg);
                padding: 12px;
                margin-top: 8px;
                gap: 2px;
                position: absolute;
                top: var(--nav-height);
                left: 0;
                right: 0;
                z-index: 999;
            }
            .nav-main.show {
                display: flex;
            }
            .nav-main a {
                display: block;
                padding: 10px 16px;
                width: 100%;
                border-radius: var(--radius-sm);
            }
            .mobile-menu-toggle {
                display: block;
            }
            .desktop-only {
                display: none;
            }
            .hero-section {
                padding: 48px 0 56px;
                min-height: auto;
            }
            .hero-title {
                font-size: 1.7rem;
            }
            .hero-desc {
                font-size: 0.95rem;
            }
            .hero-reward-cards {
                gap: 8px;
            }
            .hero-reward-card {
                min-width: 70px;
                padding: 10px 12px;
            }
            .hero-reward-card .reward-num {
                font-size: 1.2rem;
            }
            .hero-visual-card {
                padding: 20px;
            }
            .hero-visual-card .visual-icon-grid {
                grid-template-columns: repeat(3, 1fr);
                gap: 8px;
            }
            .game-cat-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
            .hot-game-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .feature-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
            .process-steps {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .testimonial-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .section {
                padding: 48px 0;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .section-header {
                margin-bottom: 28px;
            }
            .cta-section {
                padding: 48px 0;
            }
            .hero-cta-group {
                flex-direction: column;
            }
            .btn-hero-primary,
            .btn-hero-secondary {
                text-align: center;
                width: 100%;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 6px;
            }
        }

        @media (max-width: 520px) {
            .hero-title {
                font-size: 1.4rem;
            }
            .hero-reward-cards {
                flex-direction: column;
                gap: 6px;
            }
            .hero-reward-card {
                display: flex;
                justify-content: space-between;
                align-items: center;
                padding: 10px 16px;
                text-align: left;
            }
            .hero-reward-card .reward-num {
                font-size: 1.1rem;
            }
            .game-cat-grid {
                grid-template-columns: 1fr 1fr;
                gap: 8px;
            }
            .game-cat-card {
                padding: 18px 12px;
            }
            .game-cat-card .cat-icon {
                width: 42px;
                height: 42px;
                font-size: 1.2rem;
            }
            .hot-game-grid {
                grid-template-columns: 1fr;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 8px;
            }
            .stat-card .stat-number {
                font-size: 1.8rem;
            }
            .process-steps {
                grid-template-columns: 1fr;
            }
            .container {
                padding: 0 16px;
            }
            .hero-visual-card .visual-icon-grid {
                grid-template-columns: repeat(3, 1fr);
                gap: 6px;
            }
            .hero-visual-card .visual-icon-item {
                padding: 12px 6px;
            }
            .hero-visual-card .visual-icon-item i {
                font-size: 1.3rem;
            }
            .hero-visual-card .visual-icon-item span {
                font-size: 0.7rem;
            }
        }

/* roulang page: category4 */
:root {
            --primary: #1a56db;
            --primary-dark: #1e40af;
            --primary-light: #dbeafe;
            --primary-50: #eff6ff;
            --secondary: #0f172a;
            --accent: #f59e0b;
            --accent-dark: #d97706;
            --accent-light: #fef3c7;
            --bg: #f8fafc;
            --bg-alt: #f1f5f9;
            --surface: #ffffff;
            --text: #1e293b;
            --text-secondary: #64748b;
            --text-muted: #94a3b8;
            --border: #e2e8f0;
            --border-light: #f1f5f9;
            --radius-sm: 6px;
            --radius: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.04);
            --shadow: 0 4px 24px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 8px 32px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.10);
            --shadow-xl: 0 24px 64px rgba(0, 0, 0, 0.12);
            --transition: 0.2s ease;
            --transition-slow: 0.35s ease;
            --font-heading: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --font-body: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --max-width: 1200px;
            --nav-height: 68px;
            --section-gap: 80px;
            --section-gap-sm: 48px;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-body);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            min-height: 100vh;
            overflow-x: hidden;
            margin: 0;
            padding: 0;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition);
        }

        a:hover {
            color: var(--primary-dark);
        }

        a:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 3px;
            border-radius: 3px;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button {
            cursor: pointer;
            font-family: inherit;
        }

        input {
            font-family: inherit;
        }

        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        .section {
            padding: var(--section-gap) 0;
        }

        .section-sm {
            padding: var(--section-gap-sm) 0;
        }

        .section-alt {
            background: var(--bg-alt);
        }

        .section-dark {
            background: var(--secondary);
            color: #ffffff;
        }

        .section-primary-light {
            background: var(--primary-50);
        }

        .section-label {
            display: inline-block;
            font-size: 0.82rem;
            font-weight: 700;
            letter-spacing: 0.06em;
            text-transform: uppercase;
            color: var(--primary);
            background: var(--primary-light);
            padding: 6px 16px;
            border-radius: 20px;
            margin-bottom: 12px;
        }

        .section-title {
            font-family: var(--font-heading);
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--secondary);
            line-height: 1.3;
            margin-bottom: 16px;
            letter-spacing: -0.01em;
        }

        .section-desc {
            font-size: 1.05rem;
            color: var(--text-secondary);
            line-height: 1.75;
            max-width: 720px;
            margin: 0 auto 0 0;
        }

        .section-header {
            margin-bottom: 48px;
        }

        .section-header.centered {
            text-align: center;
        }

        .section-header.centered .section-desc {
            margin-left: auto;
            margin-right: auto;
        }

        /* Header & Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            height: var(--nav-height);
            display: flex;
            align-items: center;
        }

        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
        }

        .logo-wrap {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .logo-icon {
            width: 40px;
            height: 40px;
            background: var(--primary);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 700;
            font-size: 1.1rem;
            flex-shrink: 0;
        }

        .logo-text {
            font-family: var(--font-heading);
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--secondary);
            letter-spacing: -0.01em;
            white-space: nowrap;
        }

        .logo-text a {
            color: inherit;
            text-decoration: none;
        }

        .logo-text a:hover {
            color: var(--primary);
        }

        .nav-main {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: wrap;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .nav-main a {
            display: inline-block;
            padding: 8px 15px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: var(--radius-sm);
            transition: all var(--transition);
            white-space: nowrap;
            text-decoration: none;
        }

        .nav-main a:hover {
            color: var(--primary);
            background: var(--primary-50);
        }

        .nav-main a.active {
            color: var(--primary);
            background: var(--primary-light);
            font-weight: 600;
        }

        .nav-cta-btn {
            display: inline-block;
            padding: 10px 22px;
            font-size: 0.9rem;
            font-weight: 600;
            color: #ffffff !important;
            background: var(--primary);
            border-radius: 24px;
            transition: all var(--transition);
            white-space: nowrap;
            text-decoration: none;
            flex-shrink: 0;
        }

        .nav-cta-btn:hover {
            background: var(--primary-dark);
            color: #ffffff !important;
            box-shadow: var(--shadow-md);
            transform: translateY(-1px);
        }

        .mobile-menu-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--text);
            padding: 8px;
            cursor: pointer;
            border-radius: var(--radius-sm);
            transition: background var(--transition);
        }

        .mobile-menu-toggle:hover {
            background: var(--bg-alt);
        }

        .desktop-only {
            display: inline-block;
        }

        @media (max-width: 1024px) {
            .nav-main {
                gap: 2px;
            }
            .nav-main a {
                padding: 6px 10px;
                font-size: 0.82rem;
            }
            .nav-cta-btn {
                padding: 8px 16px;
                font-size: 0.82rem;
            }
        }

        @media (max-width: 768px) {
            .desktop-only {
                display: none;
            }
            .mobile-menu-toggle {
                display: block;
            }
            .nav-main {
                display: none;
                position: absolute;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background: #ffffff;
                flex-direction: column;
                gap: 0;
                border-bottom: 1px solid var(--border);
                box-shadow: var(--shadow-lg);
                padding: 12px 0;
                z-index: 999;
            }
            .nav-main.open {
                display: flex;
            }
            .nav-main a {
                display: block;
                padding: 12px 24px;
                font-size: 0.95rem;
                border-radius: 0;
                width: 100%;
            }
            .nav-main a.active {
                border-left: 3px solid var(--primary);
                background: var(--primary-50);
            }
        }

        /* Hero Section */
        .hero-section {
            padding: 60px 0 50px;
            background: linear-gradient(180deg, #ffffff 0%, var(--primary-50) 100%);
            position: relative;
            overflow: hidden;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -80px;
            width: 350px;
            height: 350px;
            background: radial-gradient(circle, rgba(26, 86, 219, 0.06) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
            position: relative;
            z-index: 1;
        }

        .hero-content {
            max-width: 560px;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--accent-light);
            color: var(--accent-dark);
            font-weight: 700;
            font-size: 0.85rem;
            padding: 8px 16px;
            border-radius: 20px;
            margin-bottom: 20px;
            letter-spacing: 0.03em;
        }

        .hero-badge i {
            font-size: 0.9rem;
        }

        .hero-title {
            font-family: var(--font-heading);
            font-size: 2.8rem;
            font-weight: 800;
            color: var(--secondary);
            line-height: 1.2;
            margin-bottom: 18px;
            letter-spacing: -0.02em;
        }

        .hero-title span {
            color: var(--primary);
            position: relative;
        }

        .hero-title span::after {
            content: '';
            position: absolute;
            bottom: 4px;
            left: 0;
            width: 100%;
            height: 8px;
            background: var(--primary-light);
            border-radius: 4px;
            z-index: -1;
            opacity: 0.6;
        }

        .hero-desc {
            font-size: 1.1rem;
            color: var(--text-secondary);
            line-height: 1.75;
            margin-bottom: 28px;
        }

        .hero-group-progress {
            background: #ffffff;
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 20px 24px;
            margin-bottom: 24px;
            box-shadow: var(--shadow);
        }

        .group-progress-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 10px;
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--text);
        }

        .group-progress-header .count {
            color: var(--accent-dark);
            font-weight: 700;
        }

        .group-progress-bar {
            height: 10px;
            background: var(--bg-alt);
            border-radius: 10px;
            overflow: hidden;
            margin-bottom: 10px;
        }

        .group-progress-fill {
            height: 100%;
            background: linear-gradient(90deg, var(--accent) 0%, var(--accent-dark) 100%);
            border-radius: 10px;
            transition: width 0.5s ease;
            width: 65%;
        }

        .group-progress-info {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 0.85rem;
            color: var(--text-secondary);
        }

        .group-progress-info .avatars {
            display: flex;
            align-items: center;
        }

        .group-progress-info .avatar-dot {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--primary-light);
            border: 2px solid #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.7rem;
            font-weight: 700;
            color: var(--primary);
            margin-right: -8px;
        }

        .hero-buttons {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }

        .btn-primary-lg {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 28px;
            font-size: 1rem;
            font-weight: 700;
            color: #ffffff;
            background: var(--primary);
            border: none;
            border-radius: 28px;
            cursor: pointer;
            transition: all var(--transition);
            text-decoration: none;
            box-shadow: var(--shadow);
        }

        .btn-primary-lg:hover {
            background: var(--primary-dark);
            color: #ffffff;
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }

        .btn-outline-lg {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 28px;
            font-size: 1rem;
            font-weight: 700;
            color: var(--primary);
            background: #ffffff;
            border: 2px solid var(--primary);
            border-radius: 28px;
            cursor: pointer;
            transition: all var(--transition);
            text-decoration: none;
        }

        .btn-outline-lg:hover {
            background: var(--primary-50);
            color: var(--primary-dark);
            border-color: var(--primary-dark);
            box-shadow: var(--shadow);
        }

        .hero-visual {
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
        }

        .hero-image-card {
            background: #ffffff;
            border-radius: var(--radius-xl);
            overflow: hidden;
            box-shadow: var(--shadow-xl);
            position: relative;
            z-index: 2;
            width: 100%;
            max-width: 440px;
        }

        .hero-image-card img {
            width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-xl) var(--radius-xl) 0 0;
        }

        .hero-image-card .card-caption {
            padding: 16px 20px;
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--text);
            background: #ffffff;
        }

        .hero-floating-badge {
            position: absolute;
            top: 20px;
            right: 10px;
            z-index: 3;
            background: #ffffff;
            border-radius: var(--radius);
            padding: 12px 16px;
            box-shadow: var(--shadow-lg);
            font-size: 0.85rem;
            font-weight: 700;
            color: var(--accent-dark);
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .hero-floating-badge i {
            color: var(--accent);
        }

        @media (max-width: 768px) {
            .hero-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .hero-title {
                font-size: 2rem;
            }
            .hero-visual {
                order: -1;
            }
            .hero-image-card {
                max-width: 100%;
            }
            .hero-buttons {
                flex-direction: column;
            }
            .btn-primary-lg,
            .btn-outline-lg {
                width: 100%;
                justify-content: center;
            }
            .hero-floating-badge {
                top: 10px;
                right: 0;
                font-size: 0.78rem;
                padding: 8px 12px;
            }
        }

        /* Steps Section */
        .steps-list {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            counter-reset: step;
        }

        .step-card {
            background: #ffffff;
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            box-shadow: var(--shadow);
            border: 1px solid var(--border-light);
            position: relative;
            transition: all var(--transition-slow);
            counter-increment: step;
        }

        .step-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
            border-color: var(--primary-light);
        }

        .step-number {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 48px;
            height: 48px;
            background: var(--primary);
            color: #ffffff;
            border-radius: 50%;
            font-size: 1.3rem;
            font-weight: 800;
            margin-bottom: 18px;
        }

        .step-card h3 {
            font-family: var(--font-heading);
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--secondary);
            margin-bottom: 10px;
        }

        .step-card p {
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin: 0;
        }

        @media (max-width: 768px) {
            .steps-list {
                grid-template-columns: 1fr;
            }
        }

        /* Games Grid */
        .games-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .game-card {
            background: #ffffff;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow);
            border: 1px solid var(--border-light);
            transition: all var(--transition-slow);
            cursor: pointer;
        }

        .game-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
            border-color: var(--primary-light);
        }

        .game-card .card-img {
            height: 160px;
            overflow: hidden;
            position: relative;
        }

        .game-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }

        .game-card:hover .card-img img {
            transform: scale(1.05);
        }

        .game-card .card-body {
            padding: 18px 16px;
        }

        .game-card .card-body h4 {
            font-family: var(--font-heading);
            font-size: 1rem;
            font-weight: 700;
            color: var(--secondary);
            margin-bottom: 6px;
        }

        .game-card .card-body .tag {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--primary);
            background: var(--primary-light);
            padding: 3px 10px;
            border-radius: 12px;
            margin-bottom: 8px;
        }

        .game-card .card-body p {
            font-size: 0.85rem;
            color: var(--text-secondary);
            margin: 0;
            line-height: 1.5;
        }

        @media (max-width: 1024px) {
            .games-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 520px) {
            .games-grid {
                grid-template-columns: 1fr;
            }
        }

        /* Tips Section */
        .tips-layout {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: start;
        }

        .tips-list {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .tips-list li {
            display: flex;
            gap: 14px;
            padding: 16px 0;
            border-bottom: 1px solid var(--border-light);
            align-items: flex-start;
        }

        .tips-list li:last-child {
            border-bottom: none;
        }

        .tips-list .tip-icon {
            flex-shrink: 0;
            width: 40px;
            height: 40px;
            background: var(--primary-50);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 1rem;
        }

        .tips-list .tip-content h4 {
            font-family: var(--font-heading);
            font-size: 1rem;
            font-weight: 700;
            color: var(--secondary);
            margin: 0 0 4px;
        }

        .tips-list .tip-content p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            margin: 0;
            line-height: 1.6;
        }

        .tips-image-card {
            background: #ffffff;
            border-radius: var(--radius-xl);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            position: sticky;
            top: 100px;
        }

        .tips-image-card img {
            width: 100%;
            height: auto;
            display: block;
        }

        .tips-image-card .overlay-info {
            padding: 20px;
            background: #ffffff;
        }

        .tips-image-card .overlay-info h4 {
            font-family: var(--font-heading);
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--secondary);
            margin-bottom: 6px;
        }

        .tips-image-card .overlay-info p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            margin: 0;
        }

        @media (max-width: 768px) {
            .tips-layout {
                grid-template-columns: 1fr;
            }
            .tips-image-card {
                position: static;
                order: -1;
            }
        }

        /* Mistakes Section */
        .mistakes-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }

        .mistake-card {
            background: #ffffff;
            border-radius: var(--radius-lg);
            padding: 24px;
            border-left: 4px solid #ef4444;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
        }

        .mistake-card:nth-child(even) {
            border-left-color: #f59e0b;
        }

        .mistake-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateX(4px);
        }

        .mistake-card .mistake-icon {
            font-size: 1.4rem;
            margin-bottom: 10px;
        }

        .mistake-card h4 {
            font-family: var(--font-heading);
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--secondary);
            margin-bottom: 6px;
        }

        .mistake-card p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            margin: 0;
            line-height: 1.6;
        }

        @media (max-width: 768px) {
            .mistakes-grid {
                grid-template-columns: 1fr;
            }
        }

        /* Group Activity Section */
        .group-activity-card {
            background: #ffffff;
            border-radius: var(--radius-xl);
            padding: 40px;
            box-shadow: var(--shadow-lg);
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 36px;
            align-items: center;
            border: 1px solid var(--border-light);
        }

        .group-activity-info h3 {
            font-family: var(--font-heading);
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--secondary);
            margin-bottom: 14px;
        }

        .group-activity-info p {
            font-size: 1rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 20px;
        }

        .group-reward-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-bottom: 20px;
        }

        .group-reward-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--accent-light);
            color: var(--accent-dark);
            font-weight: 600;
            font-size: 0.85rem;
            padding: 8px 14px;
            border-radius: 20px;
        }

        .group-activity-visual {
            background: var(--primary-50);
            border-radius: var(--radius-lg);
            padding: 30px;
            text-align: center;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            min-height: 260px;
        }

        .group-activity-visual .big-number {
            font-size: 4rem;
            font-weight: 900;
            color: var(--primary);
            line-height: 1;
            font-family: var(--font-heading);
        }

        .group-activity-visual .big-label {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-secondary);
            margin-top: 8px;
        }

        @media (max-width: 768px) {
            .group-activity-card {
                grid-template-columns: 1fr;
                padding: 24px;
            }
            .group-activity-visual {
                min-height: 180px;
            }
        }

        /* Stats */
        .stats-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .stat-card {
            background: #ffffff;
            border-radius: var(--radius-lg);
            padding: 28px 20px;
            text-align: center;
            box-shadow: var(--shadow);
            border: 1px solid var(--border-light);
            transition: all var(--transition);
        }

        .stat-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
        }

        .stat-card .stat-number {
            font-size: 2.4rem;
            font-weight: 900;
            color: var(--primary);
            font-family: var(--font-heading);
            line-height: 1.2;
        }

        .stat-card .stat-label {
            font-size: 0.9rem;
            color: var(--text-secondary);
            margin-top: 6px;
            font-weight: 500;
        }

        @media (max-width: 768px) {
            .stats-row {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 480px) {
            .stats-row {
                grid-template-columns: 1fr;
            }
        }

        /* FAQ */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            background: #ffffff;
            border-radius: var(--radius);
            margin-bottom: 12px;
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: all var(--transition);
        }

        .faq-item:hover {
            box-shadow: var(--shadow);
        }

        .faq-question {
            padding: 18px 24px;
            font-weight: 700;
            font-size: 1rem;
            color: var(--secondary);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            background: #ffffff;
            border: none;
            width: 100%;
            text-align: left;
            font-family: var(--font-body);
            transition: background var(--transition);
        }

        .faq-question:hover {
            background: var(--primary-50);
        }

        .faq-question i {
            color: var(--text-muted);
            transition: transform var(--transition);
            flex-shrink: 0;
        }

        .faq-item.open .faq-question i {
            transform: rotate(180deg);
            color: var(--primary);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-slow);
        }

        .faq-item.open .faq-answer {
            max-height: 400px;
        }

        .faq-answer-inner {
            padding: 0 24px 20px;
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.75;
        }

        /* CTA Section */
        .cta-section {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            color: #ffffff;
            text-align: center;
            padding: 64px 0;
        }

        .cta-section .section-title {
            color: #ffffff;
        }

        .cta-section .section-desc {
            color: rgba(255, 255, 255, 0.85);
            margin-left: auto;
            margin-right: auto;
        }

        .cta-buttons {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
            margin-top: 28px;
        }

        .btn-white-lg {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 32px;
            font-size: 1rem;
            font-weight: 700;
            color: var(--primary);
            background: #ffffff;
            border: none;
            border-radius: 28px;
            cursor: pointer;
            transition: all var(--transition);
            text-decoration: none;
            box-shadow: var(--shadow-lg);
        }

        .btn-white-lg:hover {
            color: var(--primary-dark);
            box-shadow: var(--shadow-xl);
            transform: translateY(-2px);
        }

        .btn-white-outline-lg {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 32px;
            font-size: 1rem;
            font-weight: 700;
            color: #ffffff;
            background: transparent;
            border: 2px solid #ffffff;
            border-radius: 28px;
            cursor: pointer;
            transition: all var(--transition);
            text-decoration: none;
        }

        .btn-white-outline-lg:hover {
            background: rgba(255, 255, 255, 0.12);
            color: #ffffff;
            box-shadow: var(--shadow);
        }

        /* Footer */
        .site-footer {
            background: var(--secondary);
            color: #cbd5e1;
            padding: 48px 0 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 32px;
            padding-bottom: 36px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }

        .footer-col h4 {
            font-family: var(--font-heading);
            font-size: 1rem;
            font-weight: 700;
            color: #ffffff;
            margin-bottom: 16px;
        }

        .footer-logo-text {
            font-family: var(--font-heading);
            font-size: 1.3rem;
            font-weight: 700;
            color: #ffffff !important;
            margin-bottom: 10px;
        }

        .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .footer-col ul li {
            margin-bottom: 8px;
        }

        .footer-col ul li a {
            color: #94a3b8;
            font-size: 0.9rem;
            transition: color var(--transition);
            text-decoration: none;
        }

        .footer-col ul li a:hover {
            color: #ffffff;
        }

        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            padding: 20px 0;
            font-size: 0.82rem;
            color: #94a3b8;
            gap: 12px;
        }

        .footer-bottom a {
            color: #94a3b8;
            text-decoration: none;
            transition: color var(--transition);
        }

        .footer-bottom a:hover {
            color: #ffffff;
        }

        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }
        @media (max-width: 480px) {
            .footer-grid {
                grid-template-columns: 1fr;
            }
        }

/* roulang page: category5 */
:root {
            --primary: #1a56db;
            --primary-dark: #1e40af;
            --primary-light: #dbeafe;
            --primary-50: #eff6ff;
            --secondary: #0f172a;
            --accent: #f59e0b;
            --accent-dark: #d97706;
            --accent-light: #fef3c7;
            --accent-gold: #d4a853;
            --accent-gold-light: #fdf6e8;
            --bg: #f8fafc;
            --bg-alt: #f1f5f9;
            --surface: #ffffff;
            --text: #1e293b;
            --text-secondary: #64748b;
            --text-muted: #94a3b8;
            --border: #e2e8f0;
            --border-light: #f1f5f9;
            --radius-sm: 6px;
            --radius: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.04);
            --shadow: 0 4px 24px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 8px 32px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.10);
            --shadow-xl: 0 24px 64px rgba(0, 0, 0, 0.12);
            --transition: 0.2s ease;
            --transition-slow: 0.35s ease;
            --font-heading: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --font-body: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --max-width: 1200px;
            --nav-height: 68px;
            --section-gap: 80px;
            --section-gap-sm: 48px;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-body);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            min-height: 100vh;
            overflow-x: hidden;
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition);
        }

        a:hover {
            color: var(--primary-dark);
        }

        a:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 3px;
            border-radius: 3px;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button {
            cursor: pointer;
            font-family: inherit;
        }

        input {
            font-family: inherit;
        }

        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        .section {
            padding: var(--section-gap) 0;
        }

        .section-sm {
            padding: var(--section-gap-sm) 0;
        }

        .section-alt {
            background: var(--bg-alt);
        }

        .section-dark {
            background: var(--secondary);
            color: #ffffff;
        }

        .section-primary-light {
            background: var(--primary-50);
        }

        .section-gold-light {
            background: var(--accent-gold-light);
        }

        .section-label {
            display: inline-block;
            font-size: 0.82rem;
            font-weight: 700;
            letter-spacing: 0.06em;
            text-transform: uppercase;
            color: var(--primary);
            background: var(--primary-light);
            padding: 6px 16px;
            border-radius: 20px;
            margin-bottom: 12px;
        }

        .section-label.gold {
            color: #8b6914;
            background: #fef3c7;
        }

        .section-title {
            font-family: var(--font-heading);
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--secondary);
            line-height: 1.3;
            margin-bottom: 16px;
            letter-spacing: -0.01em;
        }

        .section-title.light {
            color: #ffffff;
        }

        .section-desc {
            font-size: 1.05rem;
            color: var(--text-secondary);
            line-height: 1.75;
            max-width: 720px;
            margin: 0 auto 0 0;
        }

        .section-desc.light {
            color: #cbd5e1;
        }

        .section-header {
            margin-bottom: 48px;
        }

        .section-header.centered {
            text-align: center;
        }

        .section-header.centered .section-desc {
            margin-left: auto;
            margin-right: auto;
        }

        .section-header.centered .section-title {
            margin-left: auto;
            margin-right: auto;
        }

        /* Header & Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            height: var(--nav-height);
            display: flex;
            align-items: center;
        }

        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
        }

        .logo-wrap {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .logo-icon {
            width: 40px;
            height: 40px;
            background: var(--primary);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 700;
            font-size: 1.1rem;
            flex-shrink: 0;
        }

        .logo-text {
            font-family: var(--font-heading);
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--secondary);
            letter-spacing: -0.01em;
            white-space: nowrap;
        }

        .logo-text a {
            color: inherit;
            text-decoration: none;
        }

        .logo-text a:hover {
            color: var(--primary);
        }

        .nav-main {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: wrap;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .nav-main a {
            display: inline-block;
            padding: 8px 14px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: var(--radius-sm);
            transition: all var(--transition);
            white-space: nowrap;
            text-decoration: none;
        }

        .nav-main a:hover {
            color: var(--primary);
            background: var(--primary-50);
        }

        .nav-main a.active {
            color: var(--primary);
            background: var(--primary-light);
            font-weight: 600;
        }

        .nav-cta-btn {
            display: inline-block;
            padding: 10px 22px;
            font-size: 0.9rem;
            font-weight: 600;
            color: #ffffff !important;
            background: var(--primary);
            border-radius: 24px;
            transition: all var(--transition);
            white-space: nowrap;
            flex-shrink: 0;
            text-decoration: none;
            box-shadow: 0 2px 8px rgba(26, 86, 219, 0.25);
        }

        .nav-cta-btn:hover {
            background: var(--primary-dark);
            color: #ffffff !important;
            box-shadow: 0 4px 16px rgba(26, 86, 219, 0.35);
            transform: translateY(-1px);
        }

        .mobile-menu-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--text);
            padding: 8px;
            border-radius: var(--radius-sm);
            transition: background var(--transition);
        }

        .mobile-menu-toggle:hover {
            background: var(--bg-alt);
        }

        .desktop-only {
            display: inline-block;
        }

        /* Hero - Video Style */
        .hero-video {
            position: relative;
            min-height: 620px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            overflow: hidden;
        }

        .hero-video .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(15, 23, 42, 0.82) 0%, rgba(15, 23, 42, 0.7) 40%, rgba(15, 23, 42, 0.85) 100%);
            z-index: 1;
        }

        .hero-video .hero-content {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 750px;
            padding: 0 24px;
        }

        .hero-play-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 90px;
            height: 90px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.18);
            border: 3px solid rgba(255, 255, 255, 0.5);
            color: #ffffff;
            font-size: 2rem;
            cursor: pointer;
            transition: all var(--transition-slow);
            margin-bottom: 28px;
            backdrop-filter: blur(4px);
            animation: pulse-ring 2.4s ease-out infinite;
        }

        .hero-play-btn:hover {
            background: rgba(255, 255, 255, 0.3);
            border-color: #ffffff;
            transform: scale(1.08);
            box-shadow: 0 0 60px rgba(255, 255, 255, 0.25);
        }

        @keyframes pulse-ring {
            0% {
                box-shadow: 0 0 0 0 rgba(255, 255, 255, 0.35);
            }
            70% {
                box-shadow: 0 0 0 36px rgba(255, 255, 255, 0);
            }
            100% {
                box-shadow: 0 0 0 0 rgba(255, 255, 255, 0);
            }
        }

        .hero-video .hero-title {
            font-family: var(--font-heading);
            font-size: 3rem;
            font-weight: 800;
            color: #ffffff;
            line-height: 1.2;
            margin-bottom: 18px;
            letter-spacing: -0.02em;
        }

        .hero-video .hero-subtitle {
            font-size: 1.2rem;
            color: #cbd5e1;
            line-height: 1.7;
            margin-bottom: 32px;
            max-width: 560px;
            margin-left: auto;
            margin-right: auto;
        }

        .hero-cta-group {
            display: flex;
            gap: 14px;
            justify-content: center;
            flex-wrap: wrap;
        }

        .btn-primary-lg {
            display: inline-block;
            padding: 14px 36px;
            font-size: 1.05rem;
            font-weight: 700;
            color: #ffffff;
            background: var(--primary);
            border-radius: 30px;
            transition: all var(--transition);
            text-decoration: none;
            box-shadow: 0 6px 24px rgba(26, 86, 219, 0.35);
            letter-spacing: 0.01em;
        }

        .btn-primary-lg:hover {
            background: var(--primary-dark);
            color: #ffffff;
            transform: translateY(-2px);
            box-shadow: 0 10px 32px rgba(26, 86, 219, 0.45);
        }

        .btn-outline-lg {
            display: inline-block;
            padding: 14px 36px;
            font-size: 1.05rem;
            font-weight: 600;
            color: #ffffff;
            background: transparent;
            border: 2px solid rgba(255, 255, 255, 0.55);
            border-radius: 30px;
            transition: all var(--transition);
            text-decoration: none;
            letter-spacing: 0.01em;
        }

        .btn-outline-lg:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: #ffffff;
            color: #ffffff;
            transform: translateY(-2px);
        }

        /* Cards */
        .card {
            background: var(--surface);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            box-shadow: var(--shadow);
            border: 1px solid var(--border);
            transition: all var(--transition-slow);
            height: 100%;
            position: relative;
            overflow: hidden;
        }

        .card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
            border-color: #cbd5e1;
        }

        .card.premium {
            border-top: 4px solid var(--accent-gold);
        }

        .card.diamond {
            border-top: 4px solid #6366f1;
            background: linear-gradient(180deg, #faf9ff 0%, #ffffff 100%);
        }

        .card.platinum {
            border-top: 4px solid #94a3b8;
            background: linear-gradient(180deg, #f8fafc 0%, #ffffff 100%);
        }

        .card-icon {
            width: 56px;
            height: 56px;
            border-radius: var(--radius);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            margin-bottom: 18px;
            flex-shrink: 0;
        }

        .card-icon.blue {
            background: var(--primary-50);
            color: var(--primary);
        }

        .card-icon.gold {
            background: var(--accent-gold-light);
            color: #8b6914;
        }

        .card-icon.purple {
            background: #eef2ff;
            color: #6366f1;
        }

        .card-title {
            font-family: var(--font-heading);
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--secondary);
            margin-bottom: 10px;
        }

        .card-desc {
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        .card-badge {
            display: inline-block;
            padding: 5px 14px;
            font-size: 0.78rem;
            font-weight: 700;
            border-radius: 16px;
            margin-bottom: 12px;
            letter-spacing: 0.03em;
        }

        .card-badge.gold {
            background: #fef3c7;
            color: #8b6914;
        }

        .card-badge.platinum {
            background: #f1f5f9;
            color: #64748b;
        }

        .card-badge.diamond {
            background: #eef2ff;
            color: #6366f1;
        }

        /* Stat cards */
        .stat-card {
            text-align: center;
            padding: 32px 20px;
            background: rgba(255, 255, 255, 0.06);
            border-radius: var(--radius-lg);
            border: 1px solid rgba(255, 255, 255, 0.1);
            transition: all var(--transition);
        }

        .stat-card:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: rgba(255, 255, 255, 0.25);
            transform: translateY(-2px);
        }

        .stat-number {
            font-family: var(--font-heading);
            font-size: 2.8rem;
            font-weight: 800;
            color: #ffffff;
            line-height: 1;
            margin-bottom: 8px;
        }

        .stat-number .accent {
            color: var(--accent);
        }

        .stat-label {
            font-size: 0.95rem;
            color: #cbd5e1;
            font-weight: 500;
        }

        /* Step timeline */
        .step-list {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 28px;
            position: relative;
        }

        .step-list::before {
            content: '';
            position: absolute;
            left: 27px;
            top: 14px;
            bottom: 14px;
            width: 2px;
            background: var(--border);
            z-index: 0;
        }

        .step-item {
            display: flex;
            gap: 20px;
            align-items: flex-start;
            position: relative;
            z-index: 1;
        }

        .step-num {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: var(--primary);
            color: #ffffff;
            font-weight: 800;
            font-size: 1.3rem;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            box-shadow: 0 4px 16px rgba(26, 86, 219, 0.3);
        }

        .step-body {
            background: var(--surface);
            border-radius: var(--radius);
            padding: 20px 24px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
            flex: 1;
        }

        .step-body h4 {
            font-family: var(--font-heading);
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--secondary);
            margin-bottom: 6px;
        }

        .step-body p {
            font-size: 0.93rem;
            color: var(--text-secondary);
            margin: 0;
            line-height: 1.6;
        }

        /* FAQ */
        .faq-list {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .faq-item {
            background: var(--surface);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            overflow: hidden;
            transition: all var(--transition);
        }

        .faq-item:hover {
            border-color: #cbd5e1;
            box-shadow: var(--shadow-sm);
        }

        .faq-question {
            width: 100%;
            text-align: left;
            padding: 18px 24px;
            font-size: 1rem;
            font-weight: 600;
            color: var(--secondary);
            background: none;
            border: none;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            transition: all var(--transition);
            font-family: var(--font-body);
            line-height: 1.5;
        }

        .faq-question:hover {
            color: var(--primary);
            background: var(--primary-50);
        }

        .faq-question .faq-icon {
            flex-shrink: 0;
            transition: transform var(--transition-slow);
            color: var(--text-muted);
            font-size: 0.9rem;
        }

        .faq-item.open .faq-question .faq-icon {
            transform: rotate(180deg);
            color: var(--primary);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-slow);
        }

        .faq-item.open .faq-answer {
            max-height: 400px;
        }

        .faq-answer-inner {
            padding: 0 24px 20px 24px;
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.75;
        }

        /* CTA section */
        .cta-section {
            background: linear-gradient(135deg, var(--primary) 0%, #1e40af 100%);
            border-radius: var(--radius-xl);
            padding: 56px 48px;
            text-align: center;
            color: #ffffff;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 220px;
            height: 220px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
            pointer-events: none;
        }

        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -40px;
            left: -40px;
            width: 160px;
            height: 160px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.04);
            pointer-events: none;
        }

        .cta-section .cta-title {
            font-family: var(--font-heading);
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 14px;
            position: relative;
            z-index: 1;
        }

        .cta-section .cta-desc {
            font-size: 1.05rem;
            color: #cbd5e1;
            margin-bottom: 28px;
            position: relative;
            z-index: 1;
            max-width: 520px;
            margin-left: auto;
            margin-right: auto;
        }

        .cta-section .btn-white {
            display: inline-block;
            padding: 14px 40px;
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--primary);
            background: #ffffff;
            border-radius: 30px;
            transition: all var(--transition);
            text-decoration: none;
            box-shadow: 0 6px 24px rgba(0, 0, 0, 0.15);
            position: relative;
            z-index: 1;
            letter-spacing: 0.01em;
        }

        .cta-section .btn-white:hover {
            background: #f1f5f9;
            transform: translateY(-2px);
            box-shadow: 0 10px 32px rgba(0, 0, 0, 0.22);
            color: var(--primary-dark);
        }

        /* Testimonial */
        .testimonial-card {
            background: var(--surface);
            border-radius: var(--radius-lg);
            padding: 28px;
            box-shadow: var(--shadow);
            border: 1px solid var(--border);
            position: relative;
            transition: all var(--transition);
        }

        .testimonial-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }

        .testimonial-card .quote-icon {
            font-size: 2rem;
            color: var(--primary-light);
            margin-bottom: 12px;
        }

        .testimonial-card .quote-text {
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.7;
            font-style: italic;
            margin-bottom: 16px;
        }

        .testimonial-card .author {
            font-weight: 700;
            color: var(--secondary);
            font-size: 0.9rem;
        }

        .testimonial-card .author-tag {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        /* Image block */
        .img-block {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-md);
        }

        .img-block img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }

        .img-block:hover img {
            transform: scale(1.03);
        }

        /* Feature list */
        .feature-list {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .feature-list li {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        .feature-list li .feat-icon {
            color: var(--accent);
            font-size: 1rem;
            margin-top: 3px;
            flex-shrink: 0;
        }

        /* Footer */
        .site-footer {
            background: var(--secondary);
            color: #cbd5e1;
            padding: 56px 0 32px;
            font-size: 0.9rem;
        }

        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }

        .site-footer h4 {
            font-family: var(--font-heading);
            font-size: 1rem;
            font-weight: 700;
            color: #ffffff;
            margin-bottom: 16px;
        }

        .site-footer .footer-logo-text {
            font-size: 1.3rem;
            font-weight: 700;
            color: #ffffff;
            margin-bottom: 12px;
        }

        .site-footer ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .site-footer ul li {
            margin-bottom: 8px;
        }

        .site-footer ul li a {
            color: #94a3b8;
            text-decoration: none;
            transition: color var(--transition);
            font-size: 0.88rem;
        }

        .site-footer ul li a:hover {
            color: #ffffff;
        }

        .site-footer .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 24px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            font-size: 0.82rem;
            color: #64748b;
        }

        .site-footer .footer-bottom a {
            color: #94a3b8;
            text-decoration: none;
        }

        .site-footer .footer-bottom a:hover {
            color: #ffffff;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .nav-main {
                gap: 2px;
            }
            .nav-main a {
                padding: 6px 10px;
                font-size: 0.82rem;
            }
            .hero-video {
                min-height: 500px;
            }
            .hero-video .hero-title {
                font-size: 2.2rem;
            }
            .hero-video .hero-subtitle {
                font-size: 1rem;
            }
            .hero-play-btn {
                width: 70px;
                height: 70px;
                font-size: 1.5rem;
            }
            .section-title {
                font-size: 1.8rem;
            }
            .site-footer .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
            .cta-section {
                padding: 40px 28px;
            }
            .cta-section .cta-title {
                font-size: 1.5rem;
            }
            .stat-number {
                font-size: 2.2rem;
            }
        }

        @media (max-width: 768px) {
            .desktop-only {
                display: none;
            }
            .nav-main {
                display: none;
                position: absolute;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background: #ffffff;
                flex-direction: column;
                padding: 16px;
                border-bottom: 1px solid var(--border);
                box-shadow: var(--shadow-md);
                gap: 4px;
                z-index: 999;
            }
            .nav-main.show {
                display: flex;
            }
            .nav-main a {
                width: 100%;
                padding: 12px 16px;
                border-radius: var(--radius-sm);
                font-size: 0.9rem;
            }
            .mobile-menu-toggle {
                display: block;
            }
            .hero-video {
                min-height: 420px;
            }
            .hero-video .hero-title {
                font-size: 1.8rem;
            }
            .hero-video .hero-subtitle {
                font-size: 0.9rem;
            }
            .hero-play-btn {
                width: 60px;
                height: 60px;
                font-size: 1.3rem;
                margin-bottom: 20px;
            }
            .btn-primary-lg,
            .btn-outline-lg {
                padding: 12px 28px;
                font-size: 0.95rem;
            }
            .section {
                padding: 48px 0;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .section-desc {
                font-size: 0.9rem;
            }
            .site-footer .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .site-footer .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 8px;
            }
            .step-list::before {
                left: 22px;
            }
            .step-num {
                width: 44px;
                height: 44px;
                font-size: 1.1rem;
            }
            .step-body {
                padding: 16px;
            }
            .cta-section {
                padding: 32px 20px;
                border-radius: var(--radius);
            }
            .cta-section .cta-title {
                font-size: 1.3rem;
            }
            .stat-number {
                font-size: 1.8rem;
            }
            .card {
                padding: 24px 20px;
            }
        }

        @media (max-width: 520px) {
            .hero-video {
                min-height: 360px;
            }
            .hero-video .hero-title {
                font-size: 1.5rem;
            }
            .hero-cta-group {
                flex-direction: column;
                align-items: center;
            }
            .btn-primary-lg,
            .btn-outline-lg {
                width: 100%;
                text-align: center;
                padding: 12px 20px;
                font-size: 0.9rem;
            }
            .section-title {
                font-size: 1.3rem;
            }
            .stat-number {
                font-size: 1.5rem;
            }
            .hero-play-btn {
                width: 52px;
                height: 52px;
                font-size: 1.1rem;
            }
        }

/* roulang page: category6 */
:root {
            --primary: #1a56db;
            --primary-dark: #1e40af;
            --primary-light: #dbeafe;
            --primary-50: #eff6ff;
            --secondary: #0f172a;
            --accent: #f59e0b;
            --accent-dark: #d97706;
            --accent-light: #fef3c7;
            --bg: #f8fafc;
            --bg-alt: #f1f5f9;
            --surface: #ffffff;
            --text: #1e293b;
            --text-secondary: #64748b;
            --text-muted: #94a3b8;
            --border: #e2e8f0;
            --border-light: #f1f5f9;
            --radius-sm: 6px;
            --radius: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.04);
            --shadow: 0 4px 24px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 8px 32px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.10);
            --shadow-xl: 0 24px 64px rgba(0, 0, 0, 0.12);
            --transition: 0.2s ease;
            --transition-slow: 0.35s ease;
            --font-heading: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --font-body: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --max-width: 1200px;
            --nav-height: 68px;
            --section-gap: 80px;
            --section-gap-sm: 48px;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-body);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            min-height: 100vh;
            overflow-x: hidden;
            margin: 0;
            padding: 0;
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition);
        }

        a:hover {
            color: var(--primary-dark);
        }

        a:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 3px;
            border-radius: 3px;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button {
            cursor: pointer;
            font-family: inherit;
        }

        input {
            font-family: inherit;
        }

        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        .section {
            padding: var(--section-gap) 0;
        }

        .section-sm {
            padding: var(--section-gap-sm) 0;
        }

        .section-alt {
            background: var(--bg-alt);
        }

        .section-dark {
            background: var(--secondary);
            color: #ffffff;
        }

        .section-primary-light {
            background: var(--primary-50);
        }

        .section-label {
            display: inline-block;
            font-size: 0.82rem;
            font-weight: 700;
            letter-spacing: 0.06em;
            text-transform: uppercase;
            color: var(--primary);
            background: var(--primary-light);
            padding: 6px 16px;
            border-radius: 20px;
            margin-bottom: 12px;
        }

        .section-title {
            font-family: var(--font-heading);
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--secondary);
            line-height: 1.3;
            margin-bottom: 16px;
            letter-spacing: -0.01em;
        }

        .section-desc {
            font-size: 1.05rem;
            color: var(--text-secondary);
            line-height: 1.75;
            max-width: 720px;
            margin: 0 auto 0 0;
        }

        .section-header {
            margin-bottom: 48px;
        }

        .section-header.centered {
            text-align: center;
        }

        .section-header.centered .section-desc {
            margin-left: auto;
            margin-right: auto;
        }

        /* Header & Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            height: var(--nav-height);
            display: flex;
            align-items: center;
        }

        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
        }

        .logo-wrap {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .logo-icon {
            width: 40px;
            height: 40px;
            background: var(--primary);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 700;
            font-size: 1.1rem;
            flex-shrink: 0;
        }

        .logo-text {
            font-family: var(--font-heading);
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--secondary);
            letter-spacing: -0.01em;
            white-space: nowrap;
        }

        .logo-text a {
            color: inherit;
            text-decoration: none;
        }

        .logo-text a:hover {
            color: var(--primary);
        }

        .nav-main {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: wrap;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .nav-main a {
            display: inline-block;
            padding: 8px 14px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: var(--radius-sm);
            transition: all var(--transition);
            white-space: nowrap;
            text-decoration: none;
        }

        .nav-main a:hover {
            color: var(--primary);
            background: var(--primary-50);
        }

        .nav-main a.active {
            color: var(--primary);
            background: var(--primary-light);
            font-weight: 600;
        }

        .nav-cta-btn {
            display: inline-block;
            padding: 10px 22px;
            font-size: 0.9rem;
            font-weight: 600;
            color: #ffffff !important;
            background: var(--primary);
            border-radius: 24px;
            transition: all var(--transition);
            white-space: nowrap;
            text-decoration: none;
            flex-shrink: 0;
        }

        .nav-cta-btn:hover {
            background: var(--primary-dark);
            color: #ffffff !important;
            box-shadow: var(--shadow-md);
            transform: translateY(-1px);
        }

        .desktop-only {
            display: inline-block;
        }

        .mobile-menu-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--text);
            padding: 8px;
            border-radius: var(--radius-sm);
            transition: background var(--transition);
        }

        .mobile-menu-toggle:hover {
            background: var(--bg-alt);
        }

        /* Hero */
        .hero-download {
            position: relative;
            background: linear-gradient(135deg, #0f172a 0%, #1a3a6b 40%, #1a56db 100%);
            color: #ffffff;
            padding: 100px 0 90px;
            overflow: hidden;
            min-height: 620px;
            display: flex;
            align-items: center;
        }

        .hero-download::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            opacity: 0.18;
            z-index: 0;
        }

        .hero-download .container {
            position: relative;
            z-index: 1;
        }

        .hero-download .hero-badge {
            display: inline-block;
            background: rgba(255, 255, 255, 0.15);
            backdrop-filter: blur(8px);
            border: 1px solid rgba(255, 255, 255, 0.25);
            color: #ffffff;
            padding: 8px 20px;
            border-radius: 24px;
            font-size: 0.9rem;
            font-weight: 600;
            letter-spacing: 0.03em;
            margin-bottom: 20px;
        }

        .hero-download .hero-badge i {
            margin-right: 6px;
            color: var(--accent);
        }

        .hero-download h1 {
            font-family: var(--font-heading);
            font-size: 3rem;
            font-weight: 800;
            color: #ffffff;
            line-height: 1.2;
            margin-bottom: 18px;
            letter-spacing: -0.02em;
        }

        .hero-download .hero-subtitle {
            font-size: 1.2rem;
            color: rgba(255, 255, 255, 0.85);
            line-height: 1.7;
            max-width: 600px;
            margin-bottom: 32px;
        }

        .countdown-wrap {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            margin-bottom: 32px;
        }

        .countdown-item {
            background: rgba(255, 255, 255, 0.12);
            backdrop-filter: blur(6px);
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: var(--radius-lg);
            padding: 16px 20px;
            text-align: center;
            min-width: 80px;
        }

        .countdown-item .countdown-num {
            font-size: 2.6rem;
            font-weight: 800;
            color: #ffffff;
            line-height: 1;
            font-variant-numeric: tabular-nums;
            font-family: var(--font-heading);
        }

        .countdown-item .countdown-label {
            font-size: 0.78rem;
            color: rgba(255, 255, 255, 0.7);
            margin-top: 4px;
            letter-spacing: 0.04em;
        }

        .hero-subscribe-form {
            display: flex;
            gap: 10px;
            max-width: 480px;
            flex-wrap: wrap;
        }

        .hero-subscribe-form input {
            flex: 1;
            min-width: 200px;
            padding: 14px 18px;
            border-radius: 28px;
            border: 2px solid rgba(255, 255, 255, 0.3);
            background: rgba(255, 255, 255, 0.1);
            color: #ffffff;
            font-size: 0.95rem;
            backdrop-filter: blur(4px);
            transition: all var(--transition);
            outline: none;
        }

        .hero-subscribe-form input::placeholder {
            color: rgba(255, 255, 255, 0.55);
        }

        .hero-subscribe-form input:focus {
            border-color: #ffffff;
            background: rgba(255, 255, 255, 0.18);
            box-shadow: 0 0 0 4px rgba(255, 255, 255, 0.08);
        }

        .hero-subscribe-form button {
            padding: 14px 28px;
            border-radius: 28px;
            background: var(--accent);
            color: #0f172a;
            font-weight: 700;
            font-size: 0.95rem;
            border: none;
            transition: all var(--transition);
            white-space: nowrap;
        }

        .hero-subscribe-form button:hover {
            background: #fbbf24;
            box-shadow: 0 8px 28px rgba(245, 158, 11, 0.4);
            transform: translateY(-2px);
        }

        .hero-download .hero-visual {
            position: absolute;
            right: 40px;
            top: 50%;
            transform: translateY(-50%);
            z-index: 1;
            max-width: 380px;
            display: none;
        }

        /* Cards */
        .card-download {
            background: var(--surface);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            box-shadow: var(--shadow);
            border: 1px solid var(--border);
            transition: all var(--transition-slow);
            height: 100%;
            position: relative;
            overflow: hidden;
        }

        .card-download:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
            border-color: var(--primary-light);
        }

        .card-download .card-icon {
            width: 56px;
            height: 56px;
            border-radius: var(--radius);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            margin-bottom: 18px;
            flex-shrink: 0;
        }

        .card-download .card-icon.blue {
            background: var(--primary-50);
            color: var(--primary);
        }

        .card-download .card-icon.green {
            background: #ecfdf5;
            color: #10b981;
        }

        .card-download .card-icon.orange {
            background: #fff7ed;
            color: #f97316;
        }

        .card-download .card-icon.purple {
            background: #f5f3ff;
            color: #7c3aed;
        }

        .card-download h3 {
            font-family: var(--font-heading);
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--secondary);
            margin-bottom: 10px;
        }

        .card-download p {
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 0;
        }

        .card-download .card-badge {
            position: absolute;
            top: 16px;
            right: 16px;
            background: var(--accent-light);
            color: var(--accent-dark);
            font-size: 0.75rem;
            font-weight: 700;
            padding: 4px 12px;
            border-radius: 12px;
            letter-spacing: 0.03em;
        }

        /* Platform Card */
        .platform-card {
            background: var(--surface);
            border-radius: var(--radius-lg);
            padding: 40px 28px;
            text-align: center;
            box-shadow: var(--shadow);
            border: 1px solid var(--border);
            transition: all var(--transition-slow);
            height: 100%;
        }

        .platform-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-6px);
            border-color: var(--primary-light);
        }

        .platform-card .platform-icon {
            font-size: 3rem;
            margin-bottom: 16px;
            color: var(--primary);
        }

        .platform-card h3 {
            font-family: var(--font-heading);
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--secondary);
            margin-bottom: 8px;
        }

        .platform-card .platform-version {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-bottom: 16px;
        }

        .platform-card .platform-size {
            font-size: 0.85rem;
            color: var(--text-secondary);
            margin-bottom: 20px;
        }

        /* Button styles */
        .btn {
            display: inline-block;
            padding: 12px 28px;
            font-size: 0.95rem;
            font-weight: 600;
            border-radius: 24px;
            border: none;
            cursor: pointer;
            transition: all var(--transition);
            text-decoration: none;
            text-align: center;
            font-family: inherit;
            letter-spacing: 0.01em;
        }

        .btn-primary {
            background: var(--primary);
            color: #ffffff;
        }

        .btn-primary:hover {
            background: var(--primary-dark);
            color: #ffffff;
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }

        .btn-outline {
            background: transparent;
            color: var(--primary);
            border: 2px solid var(--primary);
        }

        .btn-outline:hover {
            background: var(--primary);
            color: #ffffff;
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }

        .btn-accent {
            background: var(--accent);
            color: #0f172a;
        }

        .btn-accent:hover {
            background: var(--accent-dark);
            color: #ffffff;
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }

        .btn-lg {
            padding: 16px 36px;
            font-size: 1.05rem;
            border-radius: 28px;
            font-weight: 700;
        }

        .btn-sm {
            padding: 8px 18px;
            font-size: 0.85rem;
            border-radius: 20px;
        }

        /* Stat block */
        .stat-block {
            text-align: center;
            padding: 20px;
        }

        .stat-block .stat-number {
            font-family: var(--font-heading);
            font-size: 2.8rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.1;
        }

        .stat-block .stat-label {
            font-size: 0.9rem;
            color: var(--text-secondary);
            margin-top: 6px;
        }

        /* Step timeline */
        .step-list {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-wrap: wrap;
            gap: 0;
            counter-reset: step;
        }

        .step-list li {
            flex: 1;
            min-width: 200px;
            text-align: center;
            padding: 32px 20px;
            position: relative;
            counter-increment: step;
        }

        .step-list li::before {
            content: counter(step);
            display: flex;
            align-items: center;
            justify-content: center;
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: var(--primary);
            color: #ffffff;
            font-size: 1.3rem;
            font-weight: 700;
            margin: 0 auto 16px;
            position: relative;
            z-index: 2;
        }

        .step-list li::after {
            content: '';
            position: absolute;
            top: 58px;
            left: 50%;
            width: 100%;
            height: 2px;
            background: var(--border);
            z-index: 1;
        }

        .step-list li:last-child::after {
            display: none;
        }

        .step-list li h4 {
            font-family: var(--font-heading);
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--secondary);
            margin-bottom: 6px;
        }

        .step-list li p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            margin: 0;
        }

        /* Testimonial card */
        .testimonial-card {
            background: var(--surface);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            box-shadow: var(--shadow);
            border: 1px solid var(--border);
            height: 100%;
            position: relative;
        }

        .testimonial-card .quote-icon {
            font-size: 2rem;
            color: var(--primary-light);
            position: absolute;
            top: 16px;
            left: 20px;
            opacity: 0.6;
        }

        .testimonial-card .testimonial-text {
            font-size: 0.95rem;
            color: var(--text);
            line-height: 1.75;
            padding-top: 8px;
            margin-bottom: 16px;
            font-style: italic;
        }

        .testimonial-card .testimonial-author {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .testimonial-card .author-avatar {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-weight: 700;
            font-size: 0.9rem;
            flex-shrink: 0;
        }

        .testimonial-card .author-name {
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--secondary);
        }

        .testimonial-card .author-meta {
            font-size: 0.78rem;
            color: var(--text-muted);
        }

        /* FAQ */
        .faq-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .faq-list li {
            background: var(--surface);
            border-radius: var(--radius);
            padding: 24px 28px;
            margin-bottom: 12px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
            transition: all var(--transition);
            cursor: pointer;
        }

        .faq-list li:hover {
            box-shadow: var(--shadow);
            border-color: var(--primary-light);
        }

        .faq-list li .faq-question {
            font-weight: 700;
            font-size: 1.05rem;
            color: var(--secondary);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
        }

        .faq-list li .faq-question i {
            color: var(--primary);
            transition: transform var(--transition);
            flex-shrink: 0;
        }

        .faq-list li.open .faq-question i {
            transform: rotate(180deg);
        }

        .faq-list li .faq-answer {
            margin-top: 12px;
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.75;
            display: none;
        }

        .faq-list li.open .faq-answer {
            display: block;
        }

        /* CTA Section */
        .cta-section {
            background: linear-gradient(135deg, #1a56db 0%, #1e40af 100%);
            border-radius: var(--radius-xl);
            padding: 64px 48px;
            text-align: center;
            color: #ffffff;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
            opacity: 0.1;
            z-index: 0;
        }

        .cta-section>* {
            position: relative;
            z-index: 1;
        }

        .cta-section h2 {
            font-family: var(--font-heading);
            font-size: 2.2rem;
            font-weight: 800;
            color: #ffffff;
            margin-bottom: 14px;
        }

        .cta-section p {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.85);
            margin-bottom: 28px;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }

        /* Footer */
        .site-footer {
            background: var(--secondary);
            color: #cbd5e1;
            padding: 56px 0 0;
            margin-top: 0;
        }

        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }

        .site-footer h4 {
            font-family: var(--font-heading);
            font-size: 1rem;
            font-weight: 700;
            color: #ffffff;
            margin-bottom: 16px;
            letter-spacing: 0.02em;
        }

        .site-footer .footer-logo-text {
            font-size: 1.3rem;
            font-weight: 700;
            color: #ffffff;
            margin-bottom: 12px;
        }

        .site-footer ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .site-footer ul li {
            margin-bottom: 8px;
        }

        .site-footer ul li a {
            color: #94a3b8;
            font-size: 0.9rem;
            transition: color var(--transition);
            text-decoration: none;
        }

        .site-footer ul li a:hover {
            color: #ffffff;
        }

        .site-footer .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding: 20px 0;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            font-size: 0.82rem;
            color: #94a3b8;
        }

        .site-footer .footer-bottom a {
            color: #94a3b8;
            text-decoration: none;
            transition: color var(--transition);
        }

        .site-footer .footer-bottom a:hover {
            color: #ffffff;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .hero-download h1 {
                font-size: 2.4rem;
            }

            .hero-download .hero-visual {
                display: none;
            }

            .site-footer .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }

            .nav-main {
                gap: 2px;
            }

            .nav-main a {
                padding: 6px 10px;
                font-size: 0.82rem;
            }

            .section-title {
                font-size: 1.8rem;
            }

            .step-list li {
                min-width: 160px;
                padding: 24px 14px;
            }

            .countdown-item {
                min-width: 64px;
                padding: 12px 14px;
            }

            .countdown-item .countdown-num {
                font-size: 2rem;
            }
        }

        @media (max-width: 768px) {
            .desktop-only {
                display: none;
            }

            .mobile-menu-toggle {
                display: block;
            }

            .nav-main {
                display: none;
                position: absolute;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background: #ffffff;
                flex-direction: column;
                padding: 16px 24px;
                box-shadow: var(--shadow-lg);
                border-bottom: 1px solid var(--border);
                z-index: 999;
                gap: 4px;
            }

            .nav-main.open {
                display: flex;
            }

            .nav-main a {
                display: block;
                padding: 12px 16px;
                font-size: 0.95rem;
                border-radius: var(--radius-sm);
                width: 100%;
            }

            .hero-download {
                padding: 70px 0 60px;
                min-height: auto;
            }

            .hero-download h1 {
                font-size: 2rem;
            }

            .hero-download .hero-subtitle {
                font-size: 1rem;
            }

            .countdown-wrap {
                gap: 8px;
            }

            .countdown-item {
                min-width: 56px;
                padding: 10px 12px;
            }

            .countdown-item .countdown-num {
                font-size: 1.6rem;
            }

            .countdown-item .countdown-label {
                font-size: 0.7rem;
            }

            .hero-subscribe-form {
                flex-direction: column;
            }

            .hero-subscribe-form input {
                min-width: auto;
            }

            .section {
                padding: 48px 0;
            }

            .section-title {
                font-size: 1.5rem;
            }

            .section-header {
                margin-bottom: 32px;
            }

            .site-footer .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }

            .site-footer .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 8px;
            }

            .step-list {
                flex-direction: column;
            }

            .step-list li {
                min-width: auto;
                text-align: left;
                display: flex;
                align-items: flex-start;
                gap: 16px;
                padding: 16px 0;
            }

            .step-list li::before {
                margin: 0;
                flex-shrink: 0;
                width: 40px;
                height: 40px;
                font-size: 1rem;
            }

            .step-list li::after {
                display: none;
            }

            .cta-section {
                padding: 40px 24px;
            }

            .cta-section h2 {
                font-size: 1.6rem;
            }

            .stat-block .stat-number {
                font-size: 2rem;
            }

            .card-download {
                padding: 24px 20px;
            }

            .platform-card {
                padding: 28px 20px;
            }
        }

        @media (max-width: 520px) {
            .hero-download h1 {
                font-size: 1.6rem;
            }

            .hero-download {
                padding: 50px 0 40px;
            }

            .countdown-item {
                min-width: 48px;
                padding: 8px 10px;
            }

            .countdown-item .countdown-num {
                font-size: 1.3rem;
            }

            .container {
                padding: 0 16px;
            }

            .section-title {
                font-size: 1.3rem;
            }

            .btn-lg {
                padding: 14px 24px;
                font-size: 0.9rem;
            }
        }

/* roulang page: category7 */
:root {
            --primary: #1a56db;
            --primary-dark: #1e40af;
            --primary-light: #dbeafe;
            --primary-50: #eff6ff;
            --secondary: #0f172a;
            --accent: #f59e0b;
            --accent-dark: #d97706;
            --accent-light: #fef3c7;
            --bg: #f8fafc;
            --bg-alt: #f1f5f9;
            --surface: #ffffff;
            --text: #1e293b;
            --text-secondary: #64748b;
            --text-muted: #94a3b8;
            --border: #e2e8f0;
            --border-light: #f1f5f9;
            --radius-sm: 6px;
            --radius: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.04);
            --shadow: 0 4px 24px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 8px 32px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.10);
            --shadow-xl: 0 24px 64px rgba(0, 0, 0, 0.12);
            --transition: 0.2s ease;
            --transition-slow: 0.35s ease;
            --font-heading: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --font-body: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --max-width: 1200px;
            --nav-height: 68px;
            --section-gap: 80px;
            --section-gap-sm: 48px;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-body);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            min-height: 100vh;
            overflow-x: hidden;
            margin: 0;
            padding: 0;
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition);
        }

        a:hover {
            color: var(--primary-dark);
        }

        a:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 3px;
            border-radius: 3px;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button {
            cursor: pointer;
            font-family: inherit;
        }

        input,
        textarea,
        select {
            font-family: inherit;
        }

        ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-family: var(--font-heading);
            color: var(--secondary);
            line-height: 1.3;
            margin-top: 0;
        }

        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        .section {
            padding: var(--section-gap) 0;
        }

        .section-sm {
            padding: var(--section-gap-sm) 0;
        }

        .section-alt {
            background: var(--bg-alt);
        }

        .section-dark {
            background: var(--secondary);
            color: #ffffff;
        }

        .section-primary-light {
            background: var(--primary-50);
        }

        .section-label {
            display: inline-block;
            font-size: 0.82rem;
            font-weight: 700;
            letter-spacing: 0.06em;
            text-transform: uppercase;
            color: var(--primary);
            background: var(--primary-light);
            padding: 6px 16px;
            border-radius: 20px;
            margin-bottom: 12px;
        }

        .section-title {
            font-family: var(--font-heading);
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--secondary);
            line-height: 1.3;
            margin-bottom: 16px;
            letter-spacing: -0.01em;
        }

        .section-desc {
            font-size: 1.05rem;
            color: var(--text-secondary);
            line-height: 1.75;
            max-width: 720px;
            margin: 0 auto 0 0;
        }

        .section-header {
            margin-bottom: 48px;
        }

        .section-header.centered {
            text-align: center;
        }

        .section-header.centered .section-desc {
            margin-left: auto;
            margin-right: auto;
        }

        /* Header & Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            height: var(--nav-height);
            display: flex;
            align-items: center;
        }

        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
        }

        .logo-wrap {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .logo-icon {
            width: 40px;
            height: 40px;
            background: var(--primary);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 700;
            font-size: 1.1rem;
            flex-shrink: 0;
        }

        .logo-text {
            font-family: var(--font-heading);
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--secondary);
            letter-spacing: -0.01em;
            white-space: nowrap;
        }

        .logo-text a {
            color: inherit;
            text-decoration: none;
        }

        .logo-text a:hover {
            color: var(--primary);
        }

        .nav-main {
            display: flex;
            align-items: center;
            gap: 4px;
            flex-wrap: wrap;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .nav-main a {
            display: inline-block;
            padding: 8px 14px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: var(--radius-sm);
            transition: all var(--transition);
            white-space: nowrap;
            text-decoration: none;
        }

        .nav-main a:hover {
            color: var(--primary);
            background: var(--primary-50);
        }

        .nav-main a.active {
            color: var(--primary);
            background: var(--primary-light);
            font-weight: 600;
        }

        .nav-cta-btn {
            display: inline-block;
            padding: 10px 22px;
            font-size: 0.9rem;
            font-weight: 600;
            color: #ffffff !important;
            background: var(--primary);
            border-radius: 24px;
            transition: all var(--transition);
            white-space: nowrap;
            text-decoration: none;
            flex-shrink: 0;
        }

        .nav-cta-btn:hover {
            background: var(--primary-dark);
            transform: translateY(-1px);
            box-shadow: var(--shadow-md);
            color: #ffffff !important;
        }

        .mobile-menu-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--text);
            padding: 8px;
            cursor: pointer;
            flex-shrink: 0;
        }

        .desktop-only {
            display: inline-block;
        }

        /* Hero Section */
        .hero-support {
            position: relative;
            background: var(--secondary);
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            min-height: 520px;
            display: flex;
            align-items: center;
            overflow: hidden;
        }

        .hero-support::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 23, 42, 0.88) 0%, rgba(15, 23, 42, 0.72) 40%, rgba(26, 86, 219, 0.55) 100%);
            z-index: 1;
        }

        .hero-support .container {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
            width: 100%;
        }

        .hero-support-content {
            color: #ffffff;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--accent);
            color: #ffffff;
            font-weight: 700;
            font-size: 0.85rem;
            padding: 8px 18px;
            border-radius: 24px;
            margin-bottom: 20px;
            animation: pulse-badge 2s ease-in-out infinite;
        }

        @keyframes pulse-badge {
            0%,
            100% {
                box-shadow: 0 0 0 0 rgba(245, 158, 11, 0.5);
            }
            50% {
                box-shadow: 0 0 0 14px rgba(245, 158, 11, 0);
            }
        }

        .hero-badge i {
            font-size: 0.9rem;
        }

        .hero-support-content h1 {
            font-size: 2.8rem;
            font-weight: 800;
            color: #ffffff;
            line-height: 1.2;
            margin-bottom: 16px;
            letter-spacing: -0.02em;
        }

        .hero-support-content .hero-subtitle {
            font-size: 1.15rem;
            color: rgba(255, 255, 255, 0.85);
            line-height: 1.7;
            margin-bottom: 28px;
            max-width: 480px;
        }

        .hero-support-buttons {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }

        .btn-primary-lg {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 32px;
            font-size: 1rem;
            font-weight: 700;
            color: #ffffff;
            background: var(--accent);
            border: none;
            border-radius: 28px;
            cursor: pointer;
            transition: all var(--transition);
            text-decoration: none;
            box-shadow: 0 4px 18px rgba(245, 158, 11, 0.35);
        }

        .btn-primary-lg:hover {
            background: var(--accent-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(245, 158, 11, 0.45);
            color: #ffffff;
        }

        .btn-outline-light {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 32px;
            font-size: 1rem;
            font-weight: 600;
            color: #ffffff;
            background: transparent;
            border: 2px solid rgba(255, 255, 255, 0.5);
            border-radius: 28px;
            cursor: pointer;
            transition: all var(--transition);
            text-decoration: none;
        }

        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: #ffffff;
            color: #ffffff;
            transform: translateY(-2px);
        }

        .hero-support-visual {
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .hero-stats-card {
            background: rgba(255, 255, 255, 0.1);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: var(--radius-xl);
            padding: 36px 32px;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
            width: 100%;
            max-width: 420px;
        }

        .hero-stat-item {
            text-align: center;
            color: #ffffff;
        }

        .hero-stat-number {
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--accent);
            line-height: 1;
            margin-bottom: 6px;
            letter-spacing: -0.02em;
        }

        .hero-stat-label {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.75);
            font-weight: 500;
        }

        /* Service Channel Cards */
        .channel-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .channel-card {
            background: var(--surface);
            border-radius: var(--radius-lg);
            padding: 32px 24px;
            text-align: center;
            box-shadow: var(--shadow);
            border: 1px solid var(--border);
            transition: all var(--transition-slow);
            position: relative;
            overflow: hidden;
        }

        .channel-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: var(--primary-light);
        }

        .channel-card .channel-icon {
            width: 60px;
            height: 60px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 18px;
            font-size: 1.5rem;
            color: #ffffff;
        }

        .channel-icon.blue {
            background: var(--primary);
        }
        .channel-icon.green {
            background: #10b981;
        }
        .channel-icon.orange {
            background: #f59e0b;
        }
        .channel-icon.purple {
            background: #8b5cf6;
        }

        .channel-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--secondary);
        }

        .channel-card p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            margin-bottom: 16px;
            line-height: 1.5;
        }

        .channel-card .channel-link {
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--primary);
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: all var(--transition);
        }

        .channel-card .channel-link:hover {
            color: var(--primary-dark);
            gap: 8px;
        }

        /* Self-service Section */
        .self-service-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }

        .self-service-image {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }

        .self-service-image img {
            width: 100%;
            height: auto;
            object-fit: cover;
            border-radius: var(--radius-lg);
        }

        .self-service-content h2 {
            font-size: 1.8rem;
            margin-bottom: 16px;
        }

        .self-service-content p {
            color: var(--text-secondary);
            margin-bottom: 20px;
            line-height: 1.75;
        }

        .search-box {
            display: flex;
            gap: 0;
            margin-bottom: 20px;
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            border: 2px solid var(--border);
            transition: all var(--transition);
        }

        .search-box:focus-within {
            border-color: var(--primary);
            box-shadow: 0 0 0 4px rgba(26, 86, 219, 0.1);
        }

        .search-box input {
            flex: 1;
            padding: 14px 18px;
            border: none;
            font-size: 0.95rem;
            outline: none;
            background: var(--surface);
        }

        .search-box button {
            padding: 14px 22px;
            background: var(--primary);
            color: #fff;
            border: none;
            font-weight: 600;
            font-size: 0.95rem;
            cursor: pointer;
            transition: all var(--transition);
            white-space: nowrap;
        }

        .search-box button:hover {
            background: var(--primary-dark);
        }

        .quick-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .quick-tag {
            display: inline-block;
            padding: 6px 14px;
            font-size: 0.82rem;
            font-weight: 500;
            color: var(--primary);
            background: var(--primary-50);
            border-radius: 20px;
            cursor: pointer;
            transition: all var(--transition);
            border: 1px solid transparent;
        }

        .quick-tag:hover {
            background: var(--primary-light);
            border-color: var(--primary);
            transform: translateY(-1px);
        }

        /* Category Grid */
        .category-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .category-card {
            background: var(--surface);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            box-shadow: var(--shadow);
            border: 1px solid var(--border);
            transition: all var(--transition-slow);
            cursor: pointer;
            text-align: center;
        }

        .category-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
            border-color: var(--primary-light);
        }

        .category-card .cat-icon {
            width: 52px;
            height: 52px;
            border-radius: var(--radius);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 14px;
            font-size: 1.3rem;
            color: #ffffff;
            background: var(--primary);
        }

        .category-card h3 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 6px;
            color: var(--secondary);
        }

        .category-card p {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin: 0;
        }

        /* Process Steps */
        .process-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            position: relative;
        }

        .process-step {
            text-align: center;
            position: relative;
            padding: 0 12px;
        }

        .process-step .step-number {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: var(--primary);
            color: #ffffff;
            font-size: 1.4rem;
            font-weight: 800;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
            position: relative;
            z-index: 2;
            box-shadow: var(--shadow-md);
        }

        .process-step h4 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 6px;
            color: var(--secondary);
        }

        .process-step p {
            font-size: 0.85rem;
            color: var(--text-secondary);
            line-height: 1.5;
        }

        .process-step::after {
            content: '';
            position: absolute;
            top: 28px;
            left: calc(50% + 40px);
            width: calc(100% - 80px);
            height: 2px;
            background: var(--border);
            z-index: 1;
        }

        .process-step:last-child::after {
            display: none;
        }

        /* Stats Bar */
        .stats-bar {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 0;
            background: var(--surface);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            overflow: hidden;
        }

        .stat-block {
            text-align: center;
            padding: 36px 20px;
            border-right: 1px solid var(--border-light);
        }

        .stat-block:last-child {
            border-right: none;
        }

        .stat-block .stat-value {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1;
            margin-bottom: 8px;
            letter-spacing: -0.02em;
        }

        .stat-block .stat-label {
            font-size: 0.9rem;
            color: var(--text-secondary);
            font-weight: 500;
        }

        /* FAQ */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--surface);
            border-radius: var(--radius);
            margin-bottom: 12px;
            border: 1px solid var(--border);
            overflow: hidden;
            transition: all var(--transition);
        }

        .faq-item:hover {
            box-shadow: var(--shadow);
        }

        .faq-question {
            padding: 18px 24px;
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            color: var(--secondary);
            background: var(--surface);
            border: none;
            width: 100%;
            text-align: left;
            transition: all var(--transition);
            font-family: inherit;
        }

        .faq-question:hover {
            color: var(--primary);
        }

        .faq-question .faq-icon {
            font-size: 0.8rem;
            transition: transform var(--transition);
            flex-shrink: 0;
            color: var(--text-muted);
        }

        .faq-item.open .faq-question .faq-icon {
            transform: rotate(180deg);
            color: var(--primary);
        }

        .faq-answer {
            padding: 0 24px;
            max-height: 0;
            overflow: hidden;
            transition: all var(--transition-slow);
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.7;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 24px 18px;
        }

        /* Feedback Section */
        .feedback-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .feedback-card {
            background: var(--surface);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            box-shadow: var(--shadow);
            border: 1px solid var(--border);
            transition: all var(--transition-slow);
        }

        .feedback-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-lg);
        }

        .feedback-card .feedback-stars {
            color: var(--accent);
            margin-bottom: 12px;
            font-size: 0.9rem;
        }

        .feedback-card .feedback-text {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.6;
            margin-bottom: 14px;
            font-style: italic;
        }

        .feedback-card .feedback-author {
            font-weight: 600;
            font-size: 0.85rem;
            color: var(--secondary);
        }

        .feedback-card .feedback-date {
            font-size: 0.78rem;
            color: var(--text-muted);
        }

        /* CTA Section */
        .cta-support {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            border-radius: var(--radius-xl);
            padding: 56px 48px;
            text-align: center;
            color: #ffffff;
            box-shadow: var(--shadow-xl);
        }

        .cta-support h2 {
            font-size: 2rem;
            font-weight: 800;
            color: #ffffff;
            margin-bottom: 12px;
        }

        .cta-support p {
            font-size: 1.05rem;
            color: rgba(255, 255, 255, 0.85);
            margin-bottom: 28px;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
            line-height: 1.7;
        }

        .cta-support .cta-buttons {
            display: flex;
            gap: 14px;
            justify-content: center;
            flex-wrap: wrap;
        }

        .btn-white {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 32px;
            font-size: 1rem;
            font-weight: 700;
            color: var(--primary);
            background: #ffffff;
            border: none;
            border-radius: 28px;
            cursor: pointer;
            transition: all var(--transition);
            text-decoration: none;
            box-shadow: 0 4px 18px rgba(0, 0, 0, 0.15);
        }

        .btn-white:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(0, 0, 0, 0.25);
            color: var(--primary-dark);
        }

        .btn-outline-white {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 32px;
            font-size: 1rem;
            font-weight: 600;
            color: #ffffff;
            background: transparent;
            border: 2px solid rgba(255, 255, 255, 0.6);
            border-radius: 28px;
            cursor: pointer;
            transition: all var(--transition);
            text-decoration: none;
        }

        .btn-outline-white:hover {
            background: rgba(255, 255, 255, 0.15);
            border-color: #ffffff;
            color: #ffffff;
            transform: translateY(-2px);
        }

        /* Footer */
        .site-footer {
            background: var(--secondary);
            color: #cbd5e1;
            padding: 56px 0 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 36px;
            margin-bottom: 40px;
        }

        .footer-col h4 {
            color: #ffffff;
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 16px;
            letter-spacing: 0.01em;
        }

        .footer-logo-text {
            color: #ffffff !important;
            font-size: 1.25rem !important;
            font-weight: 700 !important;
            margin-bottom: 12px !important;
        }

        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .footer-col ul li {
            margin-bottom: 8px;
        }

        .footer-col ul li a {
            color: #94a3b8;
            font-size: 0.9rem;
            text-decoration: none;
            transition: color var(--transition);
        }

        .footer-col ul li a:hover {
            color: #ffffff;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding: 20px 0;
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            justify-content: space-between;
            align-items: center;
            font-size: 0.82rem;
            color: #94a3b8;
        }

        .footer-bottom a {
            color: #94a3b8;
            text-decoration: none;
            transition: color var(--transition);
        }

        .footer-bottom a:hover {
            color: #ffffff;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .hero-support .container {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .hero-support-visual {
                justify-content: flex-start;
            }
            .hero-stats-card {
                max-width: 100%;
            }
            .hero-support-content h1 {
                font-size: 2.2rem;
            }
            .channel-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .category-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .process-steps {
                grid-template-columns: repeat(2, 1fr);
                gap: 32px;
            }
            .process-step::after {
                display: none;
            }
            .stats-bar {
                grid-template-columns: repeat(2, 1fr);
            }
            .stat-block {
                border-right: none;
                border-bottom: 1px solid var(--border-light);
            }
            .stat-block:nth-child(3),
            .stat-block:nth-child(4) {
                border-bottom: none;
            }
            .self-service-grid {
                grid-template-columns: 1fr;
            }
            .feedback-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .section-title {
                font-size: 1.8rem;
            }
            .nav-main {
                gap: 2px;
            }
            .nav-main a {
                padding: 6px 10px;
                font-size: 0.82rem;
            }
            .desktop-only {
                display: none;
            }
        }

        @media (max-width: 768px) {
            .site-header .container {
                flex-wrap: wrap;
            }
            .nav-main {
                display: none;
                position: absolute;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background: #ffffff;
                flex-direction: column;
                padding: 16px;
                border-bottom: 1px solid var(--border);
                box-shadow: var(--shadow-lg);
                z-index: 999;
                gap: 4px;
            }
            .nav-main.open {
                display: flex;
            }
            .nav-main a {
                width: 100%;
                padding: 12px 16px;
                border-radius: var(--radius-sm);
                font-size: 0.95rem;
            }
            .mobile-menu-toggle {
                display: block;
            }
            .desktop-only {
                display: none;
            }
            .hero-support {
                min-height: 400px;
            }
            .hero-support-content h1 {
                font-size: 1.8rem;
            }
            .hero-stats-card {
                grid-template-columns: 1fr 1fr;
                padding: 24px 20px;
            }
            .hero-stat-number {
                font-size: 1.8rem;
            }
            .channel-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .category-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            .process-steps {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .stats-bar {
                grid-template-columns: 1fr 1fr;
            }
            .feedback-grid {
                grid-template-columns: 1fr;
            }
            .cta-support {
                padding: 36px 24px;
            }
            .cta-support h2 {
                font-size: 1.5rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 8px;
            }
            .section {
                padding: 48px 0;
            }
            .section-sm {
                padding: 32px 0;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .hero-support-buttons {
                flex-direction: column;
            }
            .hero-support-buttons .btn-primary-lg,
            .hero-support-buttons .btn-outline-light {
                width: 100%;
                justify-content: center;
            }
            .search-box {
                flex-direction: column;
            }
            .search-box button {
                width: 100%;
                text-align: center;
            }
        }

        @media (max-width: 520px) {
            .hero-support {
                min-height: 340px;
            }
            .hero-support-content h1 {
                font-size: 1.5rem;
            }
            .hero-support-content .hero-subtitle {
                font-size: 0.95rem;
            }
            .hero-stats-card {
                grid-template-columns: 1fr;
                gap: 14px;
                padding: 20px 16px;
            }
            .hero-stat-number {
                font-size: 1.5rem;
            }
            .channel-grid {
                grid-template-columns: 1fr;
                gap: 10px;
            }
            .stats-bar {
                grid-template-columns: 1fr;
            }
            .stat-block {
                border-bottom: 1px solid var(--border-light);
            }
            .stat-block:last-child {
                border-bottom: none;
            }
            .cta-support {
                padding: 28px 18px;
                border-radius: var(--radius-lg);
            }
            .cta-support h2 {
                font-size: 1.3rem;
            }
            .cta-support .cta-buttons {
                flex-direction: column;
            }
            .btn-white,
            .btn-outline-white {
                width: 100%;
                justify-content: center;
            }
            .section-title {
                font-size: 1.3rem;
            }
            .container {
                padding: 0 16px;
            }
            .section-header {
                margin-bottom: 28px;
            }
        }