/* roulang page: index */
:root {
            --primary-bg: #0A1628;
            --secondary-bg: #1A2F4A;
            --accent-blue: #3A7FD5;
            --accent-bright: #5BA3FF;
            --text-primary: #E8F1FF;
            --text-body: #B8D4F1;
            --text-muted: #7A9BBF;
            --card-bg: rgba(26, 47, 74, 0.6);
            --card-border: rgba(90, 163, 255, 0.3);
            --glow-shadow: 0 0 12px rgba(91, 163, 255, 0.6);
            --glow-shadow-hover: 0 0 20px rgba(91, 163, 255, 0.9);
            --radius-sm: 6px;
            --radius-md: 8px;
            --radius-lg: 20px;
            --spacing-sm: 1rem;
            --spacing-md: 1.5rem;
            --spacing-lg: 4rem;
        }
        
        * {
            box-sizing: border-box;
        }
        
        body {
            margin: 0;
            padding: 0;
            font-family: -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
            background: var(--primary-bg);
            color: var(--text-body);
            font-size: 1rem;
            line-height: 1.6;
        }
        
        a {
            color: var(--accent-blue);
            text-decoration: none;
            transition: color 0.2s;
        }
        
        a:hover {
            color: var(--accent-bright);
        }
        
        img {
            max-width: 100%;
            height: auto;
            border-radius: var(--radius-sm);
        }
        
        button, .btn {
            border: none;
            cursor: pointer;
            transition: all 0.2s;
        }
        
        input, textarea {
            font-family: inherit;
        }
        
        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 var(--spacing-md);
        }
        
        /* Header & Navigation */
        header {
            background: var(--secondary-bg);
            border-bottom: 1px solid var(--card-border);
            position: sticky;
            top: 0;
            z-index: 1000;
            backdrop-filter: blur(10px);
        }
        
        .brand-row {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 1rem 0;
        }
        
        .logo {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--text-primary);
        }
        
        .logo i {
            color: var(--accent-bright);
            font-size: 1.5rem;
        }
        
        .header-actions {
            display: flex;
            gap: 1rem;
        }
        
        .btn-header {
            padding: 0.5rem 1.25rem;
            background: transparent;
            border: 1px solid var(--accent-blue);
            color: var(--accent-blue);
            border-radius: var(--radius-lg);
            font-size: 0.875rem;
        }
        
        .btn-header:hover {
            background: var(--accent-blue);
            color: #fff;
            box-shadow: var(--glow-shadow);
        }
        
        .channel-nav {
            border-top: 1px solid var(--card-border);
        }
        
        .channel-nav ul {
            display: flex;
            gap: 0.5rem;
            list-style: none;
            margin: 0;
            padding: 0.75rem 0;
            flex-wrap: wrap;
        }
        
        .channel-nav li a {
            display: inline-flex;
            padding: 0.5rem 1.25rem;
            border-radius: var(--radius-lg);
            color: var(--text-body);
            border: 1px solid transparent;
            transition: all 0.2s;
        }
        
        .channel-nav li a:hover {
            background: rgba(58, 127, 213, 0.1);
            border-color: var(--card-border);
        }
        
        .channel-nav li a.active {
            background: var(--accent-blue);
            color: #fff;
            box-shadow: var(--glow-shadow);
        }
        
        /* Hero Section */
        .hero-stage {
            padding: 3rem 0;
            position: relative;
        }
        
        .hero-content {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 3rem;
            align-items: center;
        }
        
        .hero-left {
            text-align: left;
        }
        
        .hero-left h1 {
            font-size: clamp(2rem, 5vw, 3rem);
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 1.5rem;
            line-height: 1.2;
        }
        
        .hero-left .intro {
            font-size: 1.125rem;
            color: var(--text-body);
            margin-bottom: 2rem;
            line-height: 1.8;
        }
        
        .hero-actions {
            display: flex;
            gap: 1rem;
            flex-wrap: wrap;
        }
        
        .btn-primary {
            padding: 0.75rem 2rem;
            background: var(--accent-blue);
            color: #fff;
            border-radius: var(--radius-sm);
            box-shadow: var(--glow-shadow);
            font-weight: 600;
            font-size: 1rem;
            min-height: 44px;
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
        }
        
        .btn-primary:hover {
            background: var(--accent-bright);
            box-shadow: var(--glow-shadow-hover);
            transform: translateY(-2px);
        }
        
        .btn-secondary {
            padding: 0.75rem 2rem;
            background: transparent;
            border: 1px solid var(--accent-blue);
            color: var(--accent-blue);
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 1rem;
            min-height: 44px;
        }
        
        .btn-secondary:hover {
            background: rgba(58, 127, 213, 0.1);
            box-shadow: var(--glow-shadow);
        }
        
        .hero-right {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1rem;
        }
        
        .hero-card {
            background: var(--card-bg);
            backdrop-filter: blur(10px);
            border: 1px solid var(--card-border);
            border-radius: var(--radius-md);
            padding: 1.5rem;
            text-align: center;
            transition: all 0.3s;
        }
        
        .hero-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 8px 24px rgba(91, 163, 255, 0.2);
        }
        
        .hero-card i {
            font-size: 2.5rem;
            color: var(--accent-bright);
            margin-bottom: 1rem;
        }
        
        .hero-card h3 {
            font-size: 1.125rem;
            color: var(--text-primary);
            margin-bottom: 0.5rem;
        }
        
        .hero-card p {
            font-size: 0.875rem;
            color: var(--text-muted);
            margin: 0;
        }
        
        /* Section Styles */
        section {
            padding: var(--spacing-lg) 0;
        }
        
        .section-header {
            text-align: center;
            margin-bottom: 3rem;
        }
        
        .section-header h2 {
            font-size: 1.75rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 1rem;
        }
        
        .section-header p {
            font-size: 1rem;
            color: var(--text-body);
            max-width: 720px;
            margin: 0 auto;
        }
        
        /* Glass Cards */
        .glass-card {
            background: var(--card-bg);
            backdrop-filter: blur(10px);
            border: 1px solid var(--card-border);
            border-radius: var(--radius-md);
            padding: var(--spacing-md);
            transition: all 0.3s;
        }
        
        .glass-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 8px 24px rgba(91, 163, 255, 0.2);
            border-color: var(--accent-blue);
        }
        
        /* Features Grid */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 1.5rem;
        }
        
        .feature-item {
            background: var(--card-bg);
            backdrop-filter: blur(10px);
            border: 1px solid var(--card-border);
            border-radius: var(--radius-md);
            padding: 2rem;
            text-align: center;
            transition: all 0.3s;
        }
        
        .feature-item:hover {
            transform: translateY(-4px);
            box-shadow: 0 8px 24px rgba(91, 163, 255, 0.2);
        }
        
        .feature-item i {
            font-size: 3rem;
            color: var(--accent-bright);
            margin-bottom: 1.5rem;
        }
        
        .feature-item h3 {
            font-size: 1.25rem;
            color: var(--text-primary);
            margin-bottom: 1rem;
            font-weight: 600;
        }
        
        .feature-item p {
            color: var(--text-body);
            margin: 0;
        }
        
        /* Stats Section */
        .stats-section {
            background: var(--secondary-bg);
            border-top: 1px solid var(--card-border);
            border-bottom: 1px solid var(--card-border);
        }
        
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 2rem;
        }
        
        .stat-item {
            text-align: center;
        }
        
        .stat-number {
            font-size: 3rem;
            font-weight: 700;
            color: var(--accent-bright);
            text-shadow: var(--glow-shadow);
            margin-bottom: 0.5rem;
            display: block;
        }
        
        .stat-label {
            font-size: 1rem;
            color: var(--text-body);
        }
        
        /* Testimonials */
        .testimonials-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 1.5rem;
        }
        
        .testimonial-card {
            background: rgba(232, 241, 255, 0.05);
            backdrop-filter: blur(10px);
            border: 1px solid var(--card-border);
            border-radius: var(--radius-md);
            padding: 2rem;
        }
        
        .testimonial-header {
            display: flex;
            align-items: center;
            gap: 1rem;
            margin-bottom: 1rem;
        }
        
        .testimonial-avatar {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background: var(--accent-blue);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.25rem;
        }
        
        .testimonial-info h4 {
            color: var(--text-primary);
            margin: 0 0 0.25rem 0;
            font-size: 1rem;
        }
        
        .testimonial-tag {
            display: inline-block;
            padding: 0.25rem 0.75rem;
            background: rgba(58, 127, 213, 0.2);
            color: var(--accent-bright);
            border-radius: 12px;
            font-size: 0.75rem;
        }
        
        .testimonial-text {
            color: var(--text-body);
            line-height: 1.8;
        }
        
        /* Process Steps */
        .process-steps {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            position: relative;
        }
        
        .step-item {
            text-align: center;
            position: relative;
        }
        
        .step-number {
            width: 60px;
            height: 60px;
            background: var(--accent-blue);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 1.5rem;
            font-size: 1.5rem;
            font-weight: 700;
            color: #fff;
            box-shadow: var(--glow-shadow);
        }
        
        .step-item h3 {
            font-size: 1.125rem;
            color: var(--text-primary);
            margin-bottom: 0.75rem;
        }
        
        .step-item p {
            color: var(--text-body);
        }
        
        /* FAQ Section */
        .faq-list {
            max-width: 900px;
            margin: 0 auto;
        }
        
        .faq-item {
            background: var(--card-bg);
            backdrop-filter: blur(10px);
            border: 1px solid var(--card-border);
            border-radius: var(--radius-md);
            margin-bottom: 1rem;
            overflow: hidden;
        }
        
        .faq-question {
            padding: 1.25rem 1.5rem;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            color: var(--text-primary);
            font-weight: 600;
            transition: background 0.2s;
        }
        
        .faq-question:hover {
            background: rgba(58, 127, 213, 0.05);
        }
        
        .faq-question i {
            color: var(--accent-blue);
            transition: transform 0.3s;
        }
        
        .faq-item.active .faq-question i {
            transform: rotate(180deg);
        }
        
        .faq-answer {
            padding: 0 1.5rem;
            max-height: 0;
            overflow: hidden;
            transition: all 0.3s;
        }
        
        .faq-item.active .faq-answer {
            padding: 0 1.5rem 1.5rem;
            max-height: 500px;
        }
        
        .faq-answer p {
            color: var(--text-body);
            line-height: 1.8;
            margin: 0;
        }
        
        /* Content List Section */
        .content-layout {
            display: grid;
            grid-template-columns: 2fr 1fr;
            gap: 2rem;
        }
        
        .content-main .content-item {
            background: var(--card-bg);
            backdrop-filter: blur(10px);
            border: 1px solid var(--card-border);
            border-radius: var(--radius-md);
            padding: 1.5rem;
            margin-bottom: 1.5rem;
            transition: all 0.3s;
        }
        
        .content-item:hover {
            transform: translateY(-2px);
            box-shadow: 0 4px 16px rgba(91, 163, 255, 0.2);
        }
        
        .content-item h3 {
            font-size: 1.125rem;
            color: var(--text-primary);
            margin-bottom: 0.75rem;
        }
        
        .content-item h3 a {
            color: var(--text-primary);
        }
        
        .content-item h3 a:hover {
            color: var(--accent-bright);
        }
        
        .content-meta {
            display: flex;
            gap: 1.5rem;
            font-size: 0.875rem;
            color: var(--text-muted);
            margin-bottom: 0.75rem;
        }
        
        .content-meta span {
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        
        .content-excerpt {
            color: var(--text-body);
            line-height: 1.6;
            margin-bottom: 1rem;
        }
        
        .content-sidebar .sidebar-card {
            background: var(--card-bg);
            backdrop-filter: blur(10px);
            border: 1px solid var(--card-border);
            border-radius: var(--radius-md);
            padding: 1.5rem;
            margin-bottom: 1.5rem;
        }
        
        .sidebar-card h3 {
            font-size: 1.125rem;
            color: var(--text-primary);
            margin-bottom: 1rem;
            padding-bottom: 0.75rem;
            border-bottom: 1px solid var(--card-border);
        }
        
        .sidebar-card ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        
        .sidebar-card li {
            margin-bottom: 0.75rem;
        }
        
        .sidebar-card a {
            color: var(--text-body);
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        
        .sidebar-card a:hover {
            color: var(--accent-bright);
        }
        
        /* CTA Section */
        .cta-section {
            background: linear-gradient(135deg, #1A2F4A 0%, #0A1628 100%);
            text-align: center;
            padding: 5rem 0;
        }
        
        .cta-section h2 {
            font-size: 2rem;
            color: var(--text-primary);
            margin-bottom: 1rem;
        }
        
        .cta-section p {
            font-size: 1.125rem;
            color: var(--text-body);
            margin-bottom: 2rem;
        }
        
        .cta-note {
            font-size: 0.875rem;
            color: var(--text-muted);
            margin-top: 1rem;
        }
        
        /* Footer */
        footer {
            background: var(--secondary-bg);
            border-top: 1px solid var(--card-border);
            padding: 3rem 0 1.5rem;
        }
        
        .footer-main {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }
        
        .footer-col h4 {
            color: var(--text-primary);
            margin-bottom: 1rem;
            font-size: 1rem;
        }
        
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        
        .footer-col li {
            margin-bottom: 0.5rem;
        }
        
        .footer-col a {
            color: var(--text-body);
            font-size: 0.875rem;
        }
        
        .footer-col a:hover {
            color: var(--accent-bright);
        }
        
        .footer-bottom {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid var(--card-border);
            color: var(--text-muted);
            font-size: 0.875rem;
        }
        
        /* Responsive */
        @media (max-width: 768px) {
            .hero-content {
                grid-template-columns: 1fr;
            }
            
            .hero-right {
                grid-template-columns: 1fr;
            }
            
            .content-layout {
                grid-template-columns: 1fr;
            }
            
            .channel-nav ul {
                overflow-x: auto;
                flex-wrap: nowrap;
                -webkit-overflow-scrolling: touch;
            }
            
            .hero-left h1 {
                font-size: 1.75rem;
            }
            
            .section-header h2 {
                font-size: 1.5rem;
            }
            
            section {
                padding: 3rem 0;
            }
            
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            
            .stat-number {
                font-size: 2rem;
            }
            
            .hero-actions {
                flex-direction: column;
            }
            
            .btn-primary, .btn-secondary {
                width: 100%;
                justify-content: center;
            }
        }
        
        @media (max-width: 520px) {
            .header-actions {
                gap: 0.5rem;
            }
            
            .btn-header {
                padding: 0.5rem 1rem;
                font-size: 0.8rem;
            }
            
            .logo {
                font-size: 1rem;
            }
            
            .stats-grid {
                grid-template-columns: 1fr;
            }
        }

/* roulang page: category2 */
:root {
            --primary-bg: #0A1628;
            --secondary-bg: #1A2F4A;
            --accent-blue: #3A7FD5;
            --accent-bright: #5BA3FF;
            --text-primary: #E8F1FF;
            --text-secondary: #B8D4F1;
            --text-muted: #7A9BBF;
            --glass-bg: rgba(26, 47, 74, 0.6);
            --glass-border: rgba(90, 163, 255, 0.3);
            --radius-sm: 6px;
            --radius-md: 8px;
            --radius-lg: 20px;
            --spacing-unit: 1.5rem;
        }

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

        body {
            font-family: -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
            background: var(--primary-bg);
            color: var(--text-secondary);
            line-height: 1.6;
            font-size: 1rem;
        }

        a {
            color: var(--accent-bright);
            text-decoration: none;
            transition: color 0.2s;
        }

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

        img {
            max-width: 100%;
            display: block;
            border-radius: var(--radius-sm);
        }

        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 var(--spacing-unit);
        }

        /* Header */
        header {
            background: var(--secondary-bg);
            border-bottom: 1px solid var(--glass-border);
            position: sticky;
            top: 0;
            z-index: 1000;
            backdrop-filter: blur(10px);
        }

        .brand-row {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 1rem 0;
            border-bottom: 1px solid rgba(90, 163, 255, 0.15);
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            font-size: 1.25rem;
            font-weight: 600;
            color: var(--text-primary);
        }

        .logo i {
            color: var(--accent-bright);
            font-size: 1.5rem;
        }

        .header-actions {
            display: flex;
            gap: 0.75rem;
        }

        .btn-header {
            padding: 0.5rem 1.25rem;
            border: 1px solid var(--accent-blue);
            background: transparent;
            color: var(--text-primary);
            border-radius: var(--radius-lg);
            cursor: pointer;
            transition: all 0.2s;
            font-size: 0.875rem;
        }

        .btn-header:hover {
            background: var(--accent-blue);
            box-shadow: 0 0 12px rgba(91, 163, 255, 0.6);
        }

        .channel-nav {
            padding: 0.75rem 0;
        }

        .channel-nav ul {
            list-style: none;
            display: flex;
            gap: 0.5rem;
            flex-wrap: wrap;
        }

        .channel-nav a {
            display: inline-flex;
            padding: 0.5rem 1.25rem;
            border-radius: var(--radius-lg);
            color: var(--text-secondary);
            border: 1px solid transparent;
            transition: all 0.2s;
        }

        .channel-nav a:hover {
            background: rgba(58, 127, 213, 0.2);
            border-color: var(--glass-border);
        }

        .channel-nav a.active {
            background: var(--accent-blue);
            color: var(--text-primary);
            box-shadow: 0 0 12px rgba(91, 163, 255, 0.6);
        }

        /* Breadcrumb */
        .breadcrumb-section {
            padding: 2rem 0 1rem;
        }

        .breadcrumb {
            display: flex;
            gap: 0.5rem;
            align-items: center;
            color: var(--text-muted);
            font-size: 0.875rem;
        }

        .breadcrumb a {
            color: var(--text-muted);
        }

        .breadcrumb a:hover {
            color: var(--accent-bright);
        }

        .breadcrumb span {
            color: var(--text-secondary);
        }

        /* Hero Section */
        .hero-section {
            padding: 3rem 0 4rem;
            position: relative;
        }

        .hero-content {
            text-align: center;
            max-width: 800px;
            margin: 0 auto;
        }

        .hero-content h1 {
            font-size: clamp(2rem, 5vw, 3rem);
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 1rem;
            line-height: 1.2;
        }

        .hero-content .subtitle {
            font-size: 1.125rem;
            color: var(--text-secondary);
            margin-bottom: 2rem;
        }

        .hero-badges {
            display: flex;
            gap: 1rem;
            justify-content: center;
            flex-wrap: wrap;
            margin-top: 2rem;
        }

        .hero-badge {
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            backdrop-filter: blur(10px);
            padding: 0.75rem 1.5rem;
            border-radius: var(--radius-lg);
            display: flex;
            align-items: center;
            gap: 0.5rem;
            color: var(--text-primary);
        }

        .hero-badge i {
            color: var(--accent-bright);
            font-size: 1.25rem;
        }

        /* Coupon Wall */
        .coupon-wall {
            padding: 3rem 0;
        }

        .section-title {
            text-align: center;
            margin-bottom: 3rem;
        }

        .section-title h2 {
            font-size: 1.75rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 0.5rem;
        }

        .section-title p {
            color: var(--text-muted);
        }

        .coupon-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 1.5rem;
            margin-bottom: 2rem;
        }

        .coupon-card {
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            backdrop-filter: blur(10px);
            border-radius: var(--radius-md);
            padding: 1.5rem;
            position: relative;
            overflow: hidden;
            transition: all 0.3s;
        }

        .coupon-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 8px 24px rgba(91, 163, 255, 0.3);
        }

        .coupon-card.featured {
            border-color: var(--accent-bright);
            border-width: 2px;
        }

        .coupon-card.featured::before {
            content: '推荐';
            position: absolute;
            top: 12px;
            right: -28px;
            background: var(--accent-blue);
            color: var(--text-primary);
            padding: 0.25rem 2rem;
            font-size: 0.75rem;
            transform: rotate(45deg);
            box-shadow: 0 0 12px rgba(91, 163, 255, 0.6);
        }

        .coupon-header {
            text-align: center;
            margin-bottom: 1.5rem;
            padding-bottom: 1rem;
            border-bottom: 1px solid var(--glass-border);
        }

        .coupon-type {
            font-size: 0.875rem;
            color: var(--text-muted);
            margin-bottom: 0.5rem;
        }

        .coupon-price {
            font-size: 2.5rem;
            font-weight: 700;
            color: var(--accent-bright);
            line-height: 1;
        }

        .coupon-price small {
            font-size: 1rem;
            color: var(--text-secondary);
        }

        .coupon-desc {
            font-size: 0.875rem;
            color: var(--text-muted);
            margin-top: 0.5rem;
        }

        .coupon-features {
            list-style: none;
            margin-bottom: 1.5rem;
        }

        .coupon-features li {
            padding: 0.5rem 0;
            color: var(--text-secondary);
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .coupon-features i {
            color: var(--accent-bright);
        }

        .btn-primary {
            width: 100%;
            padding: 0.75rem 2rem;
            background: var(--accent-blue);
            border: none;
            border-radius: var(--radius-sm);
            color: var(--text-primary);
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s;
            box-shadow: 0 0 12px rgba(91, 163, 255, 0.6);
        }

        .btn-primary:hover {
            box-shadow: 0 0 20px rgba(91, 163, 255, 0.9);
            transform: translateY(-2px);
        }

        /* Benefits Grid */
        .benefits-section {
            padding: 4rem 0;
            background: var(--secondary-bg);
        }

        .benefits-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
            gap: 1.5rem;
        }

        .benefit-card {
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            backdrop-filter: blur(10px);
            border-radius: var(--radius-md);
            padding: 1.5rem;
            text-align: center;
            transition: all 0.3s;
        }

        .benefit-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 8px 24px rgba(91, 163, 255, 0.3);
        }

        .benefit-icon {
            width: 60px;
            height: 60px;
            background: rgba(58, 127, 213, 0.2);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 1rem;
        }

        .benefit-icon i {
            font-size: 1.75rem;
            color: var(--accent-bright);
        }

        .benefit-card h3 {
            font-size: 1.125rem;
            color: var(--text-primary);
            margin-bottom: 0.5rem;
        }

        .benefit-card p {
            font-size: 0.875rem;
            color: var(--text-muted);
        }

        /* Stats Section */
        .stats-section {
            padding: 4rem 0;
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 1.5rem;
        }

        .stat-card {
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            backdrop-filter: blur(10px);
            border-radius: var(--radius-md);
            padding: 2rem 1.5rem;
            text-align: center;
        }

        .stat-number {
            font-size: 2.5rem;
            font-weight: 700;
            color: var(--accent-bright);
            line-height: 1;
            text-shadow: 0 0 20px rgba(91, 163, 255, 0.6);
        }

        .stat-label {
            font-size: 0.875rem;
            color: var(--text-muted);
            margin-top: 0.5rem;
        }

        /* Process Section */
        .process-section {
            padding: 4rem 0;
            background: var(--secondary-bg);
        }

        .process-steps {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
            gap: 1.5rem;
            margin-top: 2rem;
        }

        .process-step {
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            backdrop-filter: blur(10px);
            border-radius: var(--radius-md);
            padding: 1.5rem;
            position: relative;
        }

        .step-number {
            width: 40px;
            height: 40px;
            background: var(--accent-blue);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 1rem;
            box-shadow: 0 0 12px rgba(91, 163, 255, 0.6);
        }

        .process-step h3 {
            font-size: 1.125rem;
            color: var(--text-primary);
            margin-bottom: 0.5rem;
        }

        .process-step p {
            font-size: 0.875rem;
            color: var(--text-muted);
        }

        /* Testimonials */
        .testimonials-section {
            padding: 4rem 0;
        }

        .testimonial-card {
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            backdrop-filter: blur(10px);
            border-radius: var(--radius-md);
            padding: 1.5rem;
            margin-bottom: 1.5rem;
        }

        .testimonial-header {
            display: flex;
            align-items: center;
            gap: 1rem;
            margin-bottom: 1rem;
        }

        .testimonial-avatar {
            width: 50px;
            height: 50px;
            background: rgba(58, 127, 213, 0.3);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-bright);
            font-size: 1.25rem;
        }

        .testimonial-info h4 {
            color: var(--text-primary);
            font-size: 1rem;
            margin-bottom: 0.25rem;
        }

        .testimonial-meta {
            font-size: 0.75rem;
            color: var(--text-muted);
        }

        .testimonial-content {
            color: var(--text-secondary);
            line-height: 1.6;
        }

        /* FAQ Section */
        .faq-section {
            padding: 4rem 0;
            background: var(--secondary-bg);
        }

        .faq-list {
            max-width: 900px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            backdrop-filter: blur(10px);
            border-radius: var(--radius-md);
            margin-bottom: 1rem;
            overflow: hidden;
        }

        .faq-question {
            width: 100%;
            text-align: left;
            padding: 1.25rem 1.5rem;
            background: transparent;
            border: none;
            color: var(--text-primary);
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            transition: all 0.2s;
        }

        .faq-question:hover {
            background: rgba(58, 127, 213, 0.1);
        }

        .faq-question i {
            color: var(--accent-bright);
            transition: transform 0.3s;
        }

        .faq-question.active i {
            transform: rotate(180deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s;
        }

        .faq-answer-content {
            padding: 0 1.5rem 1.25rem;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        /* CTA Section */
        .cta-section {
            padding: 4rem 0;
            text-align: center;
        }

        .cta-box {
            background: linear-gradient(135deg, var(--secondary-bg), var(--accent-blue));
            border-radius: var(--radius-md);
            padding: 3rem 2rem;
            max-width: 800px;
            margin: 0 auto;
        }

        .cta-box h2 {
            font-size: 2rem;
            color: var(--text-primary);
            margin-bottom: 1rem;
        }

        .cta-box p {
            font-size: 1.125rem;
            color: var(--text-secondary);
            margin-bottom: 2rem;
        }

        .btn-cta {
            padding: 1rem 3rem;
            background: var(--text-primary);
            color: var(--primary-bg);
            border: none;
            border-radius: var(--radius-sm);
            font-size: 1.125rem;
            font-weight: 700;
            cursor: pointer;
            transition: all 0.3s;
            box-shadow: 0 4px 16px rgba(232, 241, 255, 0.3);
        }

        .btn-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 24px rgba(232, 241, 255, 0.5);
        }

        /* Footer */
        footer {
            background: var(--secondary-bg);
            border-top: 1px solid var(--glass-border);
            padding: 3rem 0 1.5rem;
        }

        .footer-main {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }

        .footer-col h4 {
            color: var(--text-primary);
            font-size: 1rem;
            margin-bottom: 1rem;
        }

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

        .footer-col ul li {
            margin-bottom: 0.5rem;
        }

        .footer-col a {
            color: var(--text-muted);
            font-size: 0.875rem;
        }

        .footer-col a:hover {
            color: var(--accent-bright);
        }

        .footer-bottom {
            text-align: center;
            padding-top: 2rem;
            border-top: 1px solid var(--glass-border);
            color: var(--text-muted);
            font-size: 0.875rem;
        }

        /* Responsive */
        @media (max-width: 768px) {
            .brand-row {
                flex-direction: column;
                gap: 1rem;
                align-items: flex-start;
            }

            .header-actions {
                width: 100%;
                justify-content: stretch;
            }

            .btn-header {
                flex: 1;
            }

            .channel-nav ul {
                overflow-x: auto;
                flex-wrap: nowrap;
                padding-bottom: 0.5rem;
            }

            .hero-content h1 {
                font-size: 1.75rem;
            }

            .coupon-grid {
                grid-template-columns: 1fr;
            }

            .benefits-grid {
                grid-template-columns: 1fr;
            }

            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .process-steps {
                grid-template-columns: 1fr;
            }

            .cta-box {
                padding: 2rem 1.5rem;
            }

            .cta-box h2 {
                font-size: 1.5rem;
            }

            .btn-cta {
                padding: 0.875rem 2rem;
                font-size: 1rem;
            }

            .footer-main {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 520px) {
            .stats-grid {
                grid-template-columns: 1fr;
            }

            .footer-main {
                grid-template-columns: 1fr;
            }

            .hero-badges {
                flex-direction: column;
            }

            .hero-badge {
                width: 100%;
                justify-content: center;
            }
        }

/* roulang page: category1 */
:root {
            --primary-dark: #0A1628;
            --secondary-dark: #1A2F4A;
            --accent-blue: #3A7FD5;
            --accent-bright: #5BA3FF;
            --text-title: #E8F1FF;
            --text-body: #B8D4F1;
            --text-muted: #7A9BBF;
            --glass-bg: rgba(26, 47, 74, 0.6);
            --glass-border: rgba(90, 163, 255, 0.3);
            --glow-shadow: 0 0 12px rgba(91, 163, 255, 0.6);
            --glow-shadow-hover: 0 0 20px rgba(91, 163, 255, 0.9);
        }
        
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        
        body {
            font-family: -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
            background: var(--primary-dark);
            color: var(--text-body);
            line-height: 1.6;
            font-size: 1rem;
        }
        
        a {
            text-decoration: none;
            color: inherit;
            transition: all 0.3s ease;
        }
        
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        
        button {
            border: none;
            cursor: pointer;
            font-family: inherit;
        }
        
        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }
        
        /* Header */
        header {
            background: var(--secondary-dark);
            border-bottom: 1px solid var(--glass-border);
            position: sticky;
            top: 0;
            z-index: 1000;
            backdrop-filter: blur(10px);
        }
        
        .brand-row {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 1rem 0;
            border-bottom: 1px solid rgba(90, 163, 255, 0.1);
        }
        
        .logo {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            font-size: 1.25rem;
            font-weight: 600;
            color: var(--text-title);
        }
        
        .logo i {
            color: var(--accent-bright);
            font-size: 1.5rem;
        }
        
        .header-actions {
            display: flex;
            gap: 1rem;
        }
        
        .btn-header {
            background: transparent;
            border: 1px solid var(--accent-blue);
            color: var(--text-title);
            padding: 0.5rem 1.25rem;
            border-radius: 6px;
            font-size: 0.875rem;
            transition: all 0.3s ease;
        }
        
        .btn-header:hover {
            background: var(--accent-blue);
            box-shadow: var(--glow-shadow);
        }
        
        .channel-nav {
            padding: 0.75rem 0;
        }
        
        .channel-nav ul {
            display: flex;
            gap: 0.5rem;
            list-style: none;
            flex-wrap: wrap;
        }
        
        .channel-nav li a {
            display: inline-flex;
            padding: 0.5rem 1.25rem;
            border-radius: 20px;
            border: 1px solid transparent;
            color: var(--text-body);
            font-size: 0.9375rem;
            transition: all 0.2s ease;
        }
        
        .channel-nav li a:hover {
            background: rgba(58, 127, 213, 0.2);
            border-color: var(--glass-border);
        }
        
        .channel-nav li a.active {
            background: var(--accent-blue);
            color: var(--text-title);
            box-shadow: var(--glow-shadow);
        }
        
        /* Hero */
        .hero-premium {
            background: linear-gradient(135deg, #0A1628 0%, #1A2F4A 100%);
            padding: 4rem 0 3rem;
            position: relative;
            overflow: hidden;
        }
        
        .hero-premium::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -10%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(91, 163, 255, 0.15) 0%, transparent 70%);
            border-radius: 50%;
        }
        
        .hero-content {
            position: relative;
            z-index: 2;
        }
        
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            backdrop-filter: blur(10px);
            padding: 0.5rem 1.25rem;
            border-radius: 30px;
            font-size: 0.875rem;
            color: var(--accent-bright);
            margin-bottom: 1.5rem;
        }
        
        .hero-premium h1 {
            font-size: clamp(2rem, 5vw, 3rem);
            font-weight: 700;
            color: var(--text-title);
            margin-bottom: 1.25rem;
            line-height: 1.2;
        }
        
        .hero-premium .subtitle {
            font-size: 1.125rem;
            color: var(--text-body);
            margin-bottom: 2rem;
            max-width: 600px;
        }
        
        .hero-stats {
            display: flex;
            gap: 3rem;
            flex-wrap: wrap;
            margin-top: 2.5rem;
        }
        
        .stat-item {
            text-align: left;
        }
        
        .stat-number {
            font-size: 2.5rem;
            font-weight: 700;
            color: var(--accent-bright);
            text-shadow: var(--glow-shadow);
            line-height: 1;
            margin-bottom: 0.5rem;
        }
        
        .stat-label {
            font-size: 0.875rem;
            color: var(--text-muted);
        }
        
        /* Glass Card */
        .glass-card {
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            backdrop-filter: blur(10px);
            border-radius: 8px;
            padding: 1.5rem;
            transition: all 0.3s ease;
        }
        
        .glass-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 8px 24px rgba(91, 163, 255, 0.2);
        }
        
        /* Sections */
        section {
            padding: 5rem 0;
        }
        
        .section-header {
            text-align: center;
            margin-bottom: 3rem;
        }
        
        .section-header h2 {
            font-size: 1.75rem;
            font-weight: 600;
            color: var(--text-title);
            margin-bottom: 0.75rem;
        }
        
        .section-header p {
            font-size: 1rem;
            color: var(--text-body);
            max-width: 700px;
            margin: 0 auto;
        }
        
        /* Features Grid */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 1.5rem;
        }
        
        .feature-card {
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            backdrop-filter: blur(10px);
            border-radius: 8px;
            padding: 2rem;
            text-align: center;
            transition: all 0.3s ease;
        }
        
        .feature-card:hover {
            transform: translateY(-6px);
            box-shadow: 0 10px 30px rgba(91, 163, 255, 0.25);
            border-color: var(--accent-blue);
        }
        
        .feature-icon {
            width: 60px;
            height: 60px;
            background: linear-gradient(135deg, var(--accent-blue), var(--accent-bright));
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 1.25rem;
            font-size: 1.75rem;
            color: white;
            box-shadow: var(--glow-shadow);
        }
        
        .feature-card h3 {
            font-size: 1.25rem;
            color: var(--text-title);
            margin-bottom: 0.75rem;
            font-weight: 600;
        }
        
        .feature-card p {
            font-size: 0.9375rem;
            color: var(--text-body);
            line-height: 1.7;
        }
        
        /* Theme Showcase */
        .theme-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 1.5rem;
        }
        
        .theme-card {
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            backdrop-filter: blur(10px);
            border-radius: 8px;
            overflow: hidden;
            transition: all 0.3s ease;
        }
        
        .theme-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 8px 24px rgba(91, 163, 255, 0.2);
        }
        
        .theme-image {
            width: 100%;
            height: 200px;
            background: linear-gradient(135deg, #1A2F4A, #0A1628);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 3rem;
            color: var(--accent-bright);
            position: relative;
            overflow: hidden;
        }
        
        .theme-image::after {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: radial-gradient(circle, rgba(91, 163, 255, 0.1) 0%, transparent 70%);
        }
        
        .theme-content {
            padding: 1.5rem;
        }
        
        .theme-tag {
            display: inline-block;
            background: rgba(91, 163, 255, 0.2);
            color: var(--accent-bright);
            padding: 0.25rem 0.75rem;
            border-radius: 12px;
            font-size: 0.75rem;
            margin-bottom: 0.75rem;
            border: 1px solid var(--glass-border);
        }
        
        .theme-card h3 {
            font-size: 1.125rem;
            color: var(--text-title);
            margin-bottom: 0.5rem;
            font-weight: 600;
        }
        
        .theme-card p {
            font-size: 0.875rem;
            color: var(--text-body);
            margin-bottom: 1rem;
            line-height: 1.6;
        }
        
        .theme-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 0.8125rem;
            color: var(--text-muted);
        }
        
        /* Process Steps */
        .process-steps {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            position: relative;
        }
        
        .step-card {
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            backdrop-filter: blur(10px);
            border-radius: 8px;
            padding: 2rem;
            text-align: center;
            position: relative;
        }
        
        .step-number {
            width: 50px;
            height: 50px;
            background: linear-gradient(135deg, var(--accent-blue), var(--accent-bright));
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 1.25rem;
            font-size: 1.5rem;
            font-weight: 700;
            color: white;
            box-shadow: var(--glow-shadow);
        }
        
        .step-card h3 {
            font-size: 1.125rem;
            color: var(--text-title);
            margin-bottom: 0.75rem;
            font-weight: 600;
        }
        
        .step-card p {
            font-size: 0.9375rem;
            color: var(--text-body);
            line-height: 1.7;
        }
        
        /* FAQ */
        .faq-container {
            max-width: 900px;
            margin: 0 auto;
        }
        
        .faq-item {
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            backdrop-filter: blur(10px);
            border-radius: 8px;
            margin-bottom: 1rem;
            overflow: hidden;
        }
        
        .faq-question {
            width: 100%;
            text-align: left;
            background: transparent;
            border: none;
            padding: 1.25rem 1.5rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
            color: var(--text-title);
            font-size: 1rem;
            font-weight: 500;
            cursor: pointer;
            transition: all 0.3s ease;
        }
        
        .faq-question:hover {
            background: rgba(58, 127, 213, 0.1);
        }
        
        .faq-question i {
            color: var(--accent-bright);
            transition: transform 0.3s ease;
        }
        
        .faq-item.active .faq-question i {
            transform: rotate(180deg);
        }
        
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease;
            padding: 0 1.5rem;
            color: var(--text-body);
            font-size: 0.9375rem;
            line-height: 1.7;
        }
        
        .faq-item.active .faq-answer {
            max-height: 500px;
            padding: 0 1.5rem 1.25rem;
        }
        
        /* CTA Section */
        .cta-section {
            background: linear-gradient(135deg, var(--accent-blue), var(--accent-bright));
            padding: 4rem 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        
        .cta-section::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -25%;
            width: 150%;
            height: 200%;
            background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 60%);
        }
        
        .cta-content {
            position: relative;
            z-index: 2;
        }
        
        .cta-section h2 {
            font-size: 2rem;
            color: white;
            margin-bottom: 1rem;
            font-weight: 700;
        }
        
        .cta-section p {
            font-size: 1.125rem;
            color: rgba(255, 255, 255, 0.9);
            margin-bottom: 2rem;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }
        
        .btn-primary {
            background: white;
            color: var(--accent-blue);
            padding: 0.875rem 2.5rem;
            border-radius: 6px;
            font-size: 1rem;
            font-weight: 600;
            border: none;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
            transition: all 0.3s ease;
            display: inline-block;
        }
        
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
            color: var(--accent-blue);
        }
        
        .btn-secondary {
            background: var(--accent-blue);
            color: white;
            padding: 0.75rem 2rem;
            border-radius: 6px;
            font-size: 1rem;
            font-weight: 500;
            border: 1px solid var(--accent-bright);
            box-shadow: var(--glow-shadow);
            transition: all 0.3s ease;
            display: inline-block;
        }
        
        .btn-secondary:hover {
            box-shadow: var(--glow-shadow-hover);
            transform: translateY(-2px);
        }
        
        /* Footer */
        footer {
            background: var(--secondary-dark);
            border-top: 1px solid var(--glass-border);
            padding: 3rem 0 1.5rem;
        }
        
        .footer-main {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }
        
        .footer-col h4 {
            color: var(--text-title);
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 1rem;
        }
        
        .footer-col ul {
            list-style: none;
        }
        
        .footer-col ul li {
            margin-bottom: 0.5rem;
        }
        
        .footer-col ul li a {
            color: var(--text-body);
            font-size: 0.875rem;
            transition: all 0.2s ease;
        }
        
        .footer-col ul li a:hover {
            color: var(--accent-bright);
            padding-left: 4px;
        }
        
        .footer-bottom {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid rgba(90, 163, 255, 0.1);
        }
        
        .footer-bottom p {
            color: var(--text-muted);
            font-size: 0.875rem;
        }
        
        /* Responsive */
        @media (max-width: 768px) {
            .brand-row {
                flex-direction: column;
                gap: 1rem;
                align-items: flex-start;
            }
            
            .header-actions {
                width: 100%;
                justify-content: space-between;
            }
            
            .channel-nav ul {
                overflow-x: auto;
                flex-wrap: nowrap;
                padding-bottom: 0.5rem;
            }
            
            .hero-premium {
                padding: 3rem 0 2rem;
            }
            
            .hero-premium h1 {
                font-size: 1.75rem;
            }
            
            .hero-stats {
                gap: 1.5rem;
            }
            
            .stat-number {
                font-size: 2rem;
            }
            
            section {
                padding: 3rem 0;
            }
            
            .features-grid,
            .theme-grid,
            .process-steps {
                grid-template-columns: 1fr;
            }
            
            .footer-main {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        
        @media (max-width: 520px) {
            .hero-stats {
                flex-direction: column;
                gap: 1rem;
            }
            
            .footer-main {
                grid-template-columns: 1fr;
            }
        }