/* roulang page: index */
:root {
            --bg-primary: #07070D;
            --bg-secondary: #0E0E1E;
            --bg-card: #13132A;
            --accent-primary: #A3E635;
            --accent-secondary: #06B6D4;
            --accent-pink: #F43F5E;
            --text-primary: #FFFFFF;
            --text-secondary: #94A3B8;
            --text-muted: #64748B;
            --border-subtle: #1E293B;
            --border-glow: rgba(163,230,53,0.3);
            --border-cyan: rgba(6,182,212,0.3);
            --shadow-neon-green: 0 0 15px rgba(163,230,53,0.4);
            --shadow-neon-cyan: 0 0 20px rgba(6,182,212,0.45);
            --shadow-card: 0 8px 24px rgba(0,0,0,0.5);
            --radius-sm: 8px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --radius-xl: 32px;
            --spacing-xs: 8px;
            --spacing-sm: 16px;
            --spacing-md: 24px;
            --spacing-lg: 48px;
            --spacing-xl: 80px;
            --font-sans: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
            --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
            --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-smooth: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        body {
            font-family: var(--font-sans);
            background-color: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

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

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

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

        /* Header & Navigation */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(7, 7, 13, 0.85);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-subtle);
            padding: 12px 0;
            transition: all var(--transition-smooth);
        }

        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: nowrap;
        }

        .site-logo {
            display: flex;
            align-items: center;
            gap: var(--spacing-xs);
            font-size: 1.5rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            color: var(--accent-primary);
            text-shadow: var(--shadow-neon-green);
            white-space: nowrap;
            flex-shrink: 0;
        }

        .site-logo i {
            font-size: 1.8rem;
        }

        .nav-primary {
            display: flex;
            align-items: center;
            gap: var(--spacing-md);
            list-style: none;
            margin: 0;
            flex-shrink: 0;
        }

        .nav-primary a {
            position: relative;
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-secondary);
            padding: 8px 4px;
            transition: color var(--transition-fast);
            white-space: nowrap;
        }

        .nav-primary a:hover,
        .nav-primary a.active {
            color: var(--accent-primary);
        }

        .nav-primary a.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 2px;
            background: var(--accent-primary);
            box-shadow: var(--shadow-neon-green);
            border-radius: 2px;
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: var(--spacing-sm);
            flex-shrink: 0;
        }

        .btn-login {
            padding: 8px 20px;
            border: 1px solid var(--accent-primary);
            color: var(--accent-primary);
            background: transparent;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.9rem;
            cursor: pointer;
            transition: all var(--transition-fast);
        }

        .btn-login:hover {
            background: rgba(163,230,53,0.1);
            box-shadow: 0 0 12px rgba(163,230,53,0.2);
        }

        .btn-signup {
            padding: 8px 20px;
            background: linear-gradient(135deg, var(--accent-primary) 0%, var(--accent-secondary) 100%);
            color: var(--bg-primary);
            border: none;
            border-radius: var(--radius-sm);
            font-weight: 700;
            font-size: 0.9rem;
            cursor: pointer;
            box-shadow: var(--shadow-neon-green);
            transition: all var(--transition-fast);
        }

        .btn-signup:hover {
            transform: translateY(-2px);
            box-shadow: 0 0 24px rgba(163,230,53,0.5);
        }

        .mobile-menu-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--text-primary);
            font-size: 1.8rem;
            cursor: pointer;
        }

        /* Hero Section */
        .hero-section {
            position: relative;
            padding: 140px 0 100px;
            min-height: 80vh;
            display: flex;
            align-items: center;
            background: url('/assets/images/backpic/back-1.jpg') center/cover no-repeat;
            background-color: var(--bg-secondary);
        }

        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(7,7,13,0.92) 0%, rgba(14,14,30,0.85) 50%, rgba(7,7,13,0.92) 100%);
            z-index: 1;
        }

        .hero-content {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: var(--spacing-lg);
            align-items: center;
        }

        .hero-text h1 {
            font-size: 3.5rem;
            font-weight: 900;
            line-height: 1.15;
            letter-spacing: -1.5px;
            margin-bottom: var(--spacing-md);
            background: linear-gradient(135deg, var(--accent-primary) 0%, var(--accent-secondary) 50%, #FACC15 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero-text p {
            font-size: 1.15rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: var(--spacing-md);
            max-width: 540px;
        }

        .hero-stats {
            display: flex;
            gap: var(--spacing-md);
            margin-bottom: var(--spacing-md);
            flex-wrap: wrap;
        }

        .hero-stat-item {
            background: rgba(19,19,42,0.7);
            backdrop-filter: blur(10px);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            padding: var(--spacing-sm) var(--spacing-md);
            text-align: center;
            min-width: 100px;
        }

        .hero-stat-item .stat-value {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--accent-primary);
            text-shadow: var(--shadow-neon-green);
        }

        .hero-stat-item .stat-label {
            font-size: 0.8rem;
            color: var(--text-muted);
            text-transform: uppercase;
            letter-spacing: 1px;
        }

        .hero-cta-group {
            display: flex;
            gap: var(--spacing-sm);
            flex-wrap: wrap;
        }

        .btn-primary {
            padding: 14px 32px;
            background: linear-gradient(135deg, var(--accent-primary) 0%, var(--accent-secondary) 100%);
            color: var(--bg-primary);
            border: none;
            border-radius: var(--radius-md);
            font-weight: 700;
            font-size: 1rem;
            cursor: pointer;
            box-shadow: var(--shadow-neon-green);
            transition: all var(--transition-fast);
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }

        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 0 30px rgba(163,230,53,0.6);
        }

        .btn-secondary {
            padding: 14px 32px;
            border: 2px solid var(--accent-secondary);
            color: var(--accent-secondary);
            background: transparent;
            border-radius: var(--radius-md);
            font-weight: 700;
            font-size: 1rem;
            cursor: pointer;
            transition: all var(--transition-fast);
        }

        .btn-secondary:hover {
            background: rgba(6,182,212,0.1);
            box-shadow: 0 0 16px rgba(6,182,212,0.3);
        }

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

        .hero-document-card {
            background: rgba(19,19,42,0.8);
            backdrop-filter: blur(16px);
            border: 1px solid var(--border-cyan);
            border-radius: var(--radius-lg);
            padding: var(--spacing-lg);
            box-shadow: 0 0 40px rgba(6,182,212,0.2);
            max-width: 420px;
            width: 100%;
        }

        .hero-document-card img {
            border-radius: var(--radius-sm);
            margin-bottom: var(--spacing-md);
            border: 1px solid var(--border-subtle);
        }

        .hero-document-card .doc-meta {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-bottom: var(--spacing-xs);
        }

        .hero-document-card h3 {
            font-size: 1.3rem;
            font-weight: 700;
            margin-bottom: var(--spacing-sm);
            color: var(--text-primary);
        }

        .hero-document-card ul {
            list-style: none;
            padding: 0;
            display: flex;
            flex-wrap: wrap;
            gap: var(--spacing-xs);
        }

        .hero-document-card ul li {
            background: rgba(163,230,53,0.1);
            color: var(--accent-primary);
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 600;
        }

        /* Section Styles */
        .section {
            padding: var(--spacing-xl) 0;
        }

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

        .section-header {
            margin-bottom: var(--spacing-lg);
        }

        .section-label {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 2px;
            color: var(--accent-secondary);
            margin-bottom: var(--spacing-xs);
        }

        .section-title {
            font-size: 2.4rem;
            font-weight: 800;
            line-height: 1.25;
            letter-spacing: -0.5px;
            margin-bottom: var(--spacing-sm);
        }

        .section-desc {
            font-size: 1.05rem;
            color: var(--text-secondary);
            line-height: 1.7;
            max-width: 720px;
        }

        /* Audience Grid */
        .audience-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: var(--spacing-md);
        }

        .audience-card {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            padding: var(--spacing-md);
            transition: all var(--transition-smooth);
        }

        .audience-card:hover {
            border-color: var(--accent-primary);
            box-shadow: 0 0 20px rgba(163,230,53,0.15);
            transform: translateY(-4px);
        }

        .audience-card .card-icon {
            font-size: 2.2rem;
            margin-bottom: var(--spacing-sm);
        }

        .audience-card h4 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: var(--spacing-xs);
        }

        .audience-card p {
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        /* Split Contrast */
        .split-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: var(--spacing-lg);
        }

        .split-panel {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: var(--spacing-lg);
        }

        .split-panel.panel-for {
            border-left: 4px solid var(--accent-primary);
        }

        .split-panel.panel-against {
            border-left: 4px solid var(--accent-pink);
        }

        .split-panel h3 {
            font-size: 1.6rem;
            font-weight: 800;
            margin-bottom: var(--spacing-md);
        }

        .split-panel ul {
            list-style: none;
            padding: 0;
        }

        .split-panel ul li {
            padding: var(--spacing-xs) 0;
            font-size: 0.95rem;
            color: var(--text-secondary);
            display: flex;
            align-items: center;
            gap: var(--spacing-xs);
        }

        .split-panel ul li::before {
            content: '•';
            font-weight: bold;
            font-size: 1.2rem;
        }

        .panel-for ul li::before { color: var(--accent-primary); }
        .panel-against ul li::before { color: var(--accent-pink); }

        /* Plan Cards */
        .plan-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: var(--spacing-md);
        }

        .plan-card {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            padding: var(--spacing-md);
            text-align: left;
            transition: all var(--transition-smooth);
        }

        .plan-card.featured {
            border-color: var(--accent-primary);
            box-shadow: 0 0 24px rgba(163,230,53,0.2);
        }

        .plan-card h4 {
            font-size: 1.3rem;
            font-weight: 700;
            margin-bottom: var(--spacing-xs);
        }

        .plan-card .plan-price {
            font-size: 2rem;
            font-weight: 900;
            color: var(--accent-primary);
            margin-bottom: var(--spacing-sm);
        }

        .plan-card ul {
            list-style: none;
            padding: 0;
            margin-bottom: var(--spacing-md);
        }

        .plan-card ul li {
            padding: 4px 0;
            font-size: 0.9rem;
            color: var(--text-secondary);
        }

        /* Category Hub */
        .category-hub-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--spacing-md);
        }

        .category-hub-item {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            padding: var(--spacing-md);
            text-align: center;
            transition: all var(--transition-smooth);
            display: block;
        }

        .category-hub-item:hover {
            border-color: var(--accent-secondary);
            box-shadow: 0 0 20px rgba(6,182,212,0.2);
            transform: translateY(-4px);
        }

        .category-hub-item .hub-icon {
            font-size: 2.8rem;
            margin-bottom: var(--spacing-sm);
        }

        .category-hub-item h4 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 4px;
        }

        .category-hub-item p {
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        /* News Grid */
        .news-grid {
            display: grid;
            grid-template-columns: 2fr 1fr;
            gap: var(--spacing-lg);
        }

        .news-main-list {
            display: flex;
            flex-direction: column;
            gap: var(--spacing-md);
        }

        .news-item {
            display: flex;
            gap: var(--spacing-md);
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            padding: var(--spacing-sm);
            transition: all var(--transition-smooth);
        }

        .news-item:hover {
            border-color: var(--accent-primary);
            box-shadow: 0 0 16px rgba(163,230,53,0.1);
        }

        .news-item img {
            width: 160px;
            height: 100px;
            object-fit: cover;
            border-radius: var(--radius-sm);
            flex-shrink: 0;
        }

        .news-item-content h5 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 4px;
        }

        .news-item-content p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.5;
        }

        .news-item-content .news-meta {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        .news-sidebar {
            display: flex;
            flex-direction: column;
            gap: var(--spacing-md);
        }

        .news-sidebar-card {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            padding: var(--spacing-md);
        }

        .news-sidebar-card h5 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: var(--spacing-sm);
        }

        .news-sidebar-card .mini-item {
            display: flex;
            gap: var(--spacing-xs);
            padding: var(--spacing-xs) 0;
            border-bottom: 1px solid var(--border-subtle);
            font-size: 0.9rem;
            color: var(--text-secondary);
        }

        .news-sidebar-card .mini-item:last-child {
            border-bottom: none;
        }

        /* Security Bar */
        .security-bar {
            display: flex;
            flex-wrap: wrap;
            gap: var(--spacing-md);
            justify-content: center;
            align-items: center;
            padding: var(--spacing-md);
            background: rgba(19,19,42,0.6);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            margin-top: var(--spacing-lg);
        }

        .security-item {
            display: flex;
            align-items: center;
            gap: var(--spacing-xs);
            font-size: 0.9rem;
            color: var(--text-secondary);
            font-weight: 500;
        }

        .security-item i {
            color: var(--accent-primary);
            font-size: 1.2rem;
        }

        /* Footer */
        .site-footer {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-subtle);
            padding: var(--spacing-xl) 0 var(--spacing-md);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: var(--spacing-lg);
            margin-bottom: var(--spacing-lg);
        }

        .footer-col h4 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: var(--spacing-sm);
        }

        .footer-col p, .footer-col a {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.8;
        }

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

        .footer-bottom {
            text-align: center;
            padding-top: var(--spacing-md);
            border-top: 1px solid var(--border-subtle);
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        .footer-bottom a {
            color: var(--accent-secondary);
        }

        /* FAB */
        .fab-floating {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: 50;
            width: 56px;
            height: 56px;
            background: rgba(7,7,13,0.8);
            backdrop-filter: blur(12px);
            border: 2px solid transparent;
            border-image: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary)) 1;
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-primary);
            font-size: 1.6rem;
            cursor: pointer;
            box-shadow: var(--shadow-neon-cyan);
            transition: all var(--transition-fast);
            opacity: 0.75;
        }

        .fab-floating:hover {
            opacity: 1;
            transform: scale(1.1);
            box-shadow: 0 0 30px rgba(6,182,212,0.6);
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .hero-content {
                grid-template-columns: 1fr;
            }
            .hero-visual {
                order: -1;
            }
            .hero-document-card {
                max-width: 100%;
            }
            .category-hub-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            .site-header .container {
                flex-wrap: wrap;
            }
            .nav-primary {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: rgba(7,7,13,0.95);
                flex-direction: column;
                padding: var(--spacing-md);
                border-bottom: 1px solid var(--border-subtle);
            }
            .nav-primary.mobile-open {
                display: flex;
            }
            .mobile-menu-toggle {
                display: block;
            }
            .nav-actions .btn-login,
            .nav-actions .btn-signup {
                padding: 6px 14px;
                font-size: 0.8rem;
            }
            .hero-text h1 {
                font-size: 2.2rem;
            }
            .split-grid {
                grid-template-columns: 1fr;
            }
            .news-grid {
                grid-template-columns: 1fr;
            }
            .news-item {
                flex-direction: column;
            }
            .news-item img {
                width: 100%;
                height: 180px;
            }
            .category-hub-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .security-bar {
                flex-direction: column;
                align-items: flex-start;
            }
        }

        @media (max-width: 520px) {
            .hero-text h1 {
                font-size: 1.8rem;
            }
            .section-title {
                font-size: 1.6rem;
            }
            .hero-stats {
                flex-direction: column;
            }
            .hero-cta-group {
                flex-direction: column;
            }
        }

/* roulang page: article */
:root {
            --bg-primary: #07070D;
            --bg-secondary: #0E0E1E;
            --bg-card: #13132A;
            --accent-primary: #A3E635;
            --accent-secondary: #06B6D4;
            --accent-pink: #F43F5E;
            --text-primary: #FFFFFF;
            --text-secondary: #94A3B8;
            --text-muted: #64748B;
            --border-subtle: #1E293B;
            --border-glow: rgba(163,230,53,0.3);
            --border-cyan: rgba(6,182,212,0.3);
            --shadow-neon-green: 0 0 15px rgba(163,230,53,0.4);
            --shadow-neon-cyan: 0 0 20px rgba(6,182,212,0.45);
            --shadow-card: 0 8px 24px rgba(0,0,0,0.5);
            --radius-sm: 8px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --radius-xl: 32px;
            --spacing-xs: 8px;
            --spacing-sm: 16px;
            --spacing-md: 24px;
            --spacing-lg: 48px;
            --spacing-xl: 80px;
            --font-sans: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
            --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
            --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-smooth: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        body {
            font-family: var(--font-sans);
            background-color: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
            margin: 0;
            padding: 0;
        }

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

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

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

        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(7, 7, 13, 0.85);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-subtle);
            padding: 12px 0;
            transition: all var(--transition-smooth);
        }

        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: nowrap;
        }

        .site-logo {
            display: flex;
            align-items: center;
            gap: var(--spacing-xs);
            font-size: 1.4rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            color: var(--accent-primary);
            text-shadow: var(--shadow-neon-green);
            white-space: nowrap;
            flex-shrink: 0;
        }

        .site-logo i {
            font-size: 1.6rem;
        }

        .nav-primary {
            display: flex;
            align-items: center;
            gap: 20px;
            list-style: none;
            margin: 0;
            flex-shrink: 0;
        }

        .nav-primary a {
            position: relative;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            padding: 8px 0;
            transition: color var(--transition-fast);
            white-space: nowrap;
        }

        .nav-primary a:hover,
        .nav-primary a.active {
            color: var(--accent-primary);
        }

        .nav-primary a.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 2px;
            background: var(--accent-primary);
            box-shadow: var(--shadow-neon-green);
            border-radius: 2px;
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: var(--spacing-sm);
            flex-shrink: 0;
        }

        .btn-login {
            padding: 8px 20px;
            border: 1px solid var(--accent-primary);
            color: var(--accent-primary);
            background: transparent;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.85rem;
            cursor: pointer;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .btn-login:hover {
            background: rgba(163,230,53,0.1);
            box-shadow: 0 0 12px rgba(163,230,53,0.2);
        }

        .btn-signup {
            padding: 8px 20px;
            background: linear-gradient(135deg, var(--accent-primary) 0%, var(--accent-secondary) 100%);
            color: var(--bg-primary);
            border: none;
            border-radius: var(--radius-sm);
            font-weight: 700;
            font-size: 0.85rem;
            cursor: pointer;
            box-shadow: var(--shadow-neon-green);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .btn-signup:hover {
            transform: translateY(-2px);
            box-shadow: 0 0 24px rgba(163,230,53,0.5);
        }

        .mobile-menu-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--text-primary);
            font-size: 1.8rem;
            cursor: pointer;
        }

        .article-hero {
            position: relative;
            padding: 140px 0 60px;
            background: url('/assets/images/backpic/back-3.jpg') center/cover no-repeat;
            background-color: var(--bg-secondary);
            text-align: left;
        }

        .article-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(7,7,13,0.7) 0%, rgba(14,14,30,0.95) 100%);
            z-index: 1;
        }

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

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-bottom: var(--spacing-md);
            flex-wrap: wrap;
        }

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

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

        .breadcrumb i {
            font-size: 0.7rem;
        }

        .article-hero h1 {
            font-size: 2.8rem;
            font-weight: 800;
            line-height: 1.2;
            color: var(--text-primary);
            margin-bottom: var(--spacing-sm);
            max-width: 900px;
        }

        .article-meta {
            display: flex;
            align-items: center;
            gap: var(--spacing-md);
            color: var(--text-secondary);
            font-size: 0.9rem;
            flex-wrap: wrap;
        }

        .article-meta span {
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .article-meta i {
            color: var(--accent-primary);
        }

        .article-body-section {
            padding: var(--spacing-lg) 0;
        }

        .article-layout {
            display: grid;
            grid-template-columns: 1fr 340px;
            gap: 40px;
            align-items: start;
        }

        .article-main {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: var(--spacing-lg);
            box-shadow: var(--shadow-card);
            max-width: 720px;
        }

        .article-main h2 {
            font-size: 1.8rem;
            font-weight: 700;
            margin-top: var(--spacing-lg);
            margin-bottom: var(--spacing-sm);
            color: var(--accent-primary);
        }

        .article-main h3 {
            font-size: 1.3rem;
            font-weight: 600;
            margin-top: var(--spacing-md);
            margin-bottom: var(--spacing-xs);
            color: var(--text-primary);
        }

        .article-main p {
            font-size: 1rem;
            line-height: 1.7;
            color: var(--text-secondary);
            margin-bottom: var(--spacing-sm);
        }

        .article-main ul,
        .article-main ol {
            margin-bottom: var(--spacing-sm);
            padding-left: 20px;
            color: var(--text-secondary);
        }

        .article-main li {
            margin-bottom: 8px;
        }

        .article-main strong {
            color: var(--accent-primary);
        }

        .article-main blockquote {
            border-left: 4px solid var(--accent-primary);
            padding: var(--spacing-sm) var(--spacing-md);
            margin: var(--spacing-md) 0;
            background: rgba(163,230,53,0.05);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--text-secondary);
            font-style: italic;
        }

        .article-main img {
            border-radius: var(--radius-md);
            margin: var(--spacing-md) 0;
            width: 100%;
            border: 1px solid var(--border-subtle);
        }

        .article-sidebar {
            position: sticky;
            top: 120px;
            display: flex;
            flex-direction: column;
            gap: var(--spacing-md);
        }

        .sidebar-card {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            padding: var(--spacing-md);
            box-shadow: var(--shadow-card);
        }

        .sidebar-card h4 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--accent-primary);
            margin-bottom: var(--spacing-sm);
            display: flex;
            align-items: center;
            gap: 8px;
        }

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

        .sidebar-card li {
            padding: 8px 0;
            border-bottom: 1px solid var(--border-subtle);
        }

        .sidebar-card li:last-child {
            border-bottom: none;
        }

        .sidebar-card a {
            color: var(--text-secondary);
            font-size: 0.9rem;
            transition: color var(--transition-fast);
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .sidebar-card a:hover {
            color: var(--accent-primary);
        }

        .sidebar-card a i {
            font-size: 0.7rem;
            color: var(--accent-secondary);
        }

        .cta-sidebar {
            background: linear-gradient(135deg, rgba(163,230,53,0.15) 0%, rgba(6,182,212,0.15) 100%);
            border: 1px solid var(--border-glow);
            border-radius: var(--radius-md);
            padding: var(--spacing-md);
            text-align: center;
        }

        .cta-sidebar h4 {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--accent-primary);
            margin-bottom: 8px;
        }

        .cta-sidebar p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            margin-bottom: var(--spacing-sm);
        }

        .btn-cta-block {
            display: block;
            width: 100%;
            padding: 12px;
            background: linear-gradient(135deg, var(--accent-primary) 0%, var(--accent-secondary) 100%);
            color: var(--bg-primary);
            border: none;
            border-radius: var(--radius-sm);
            font-weight: 700;
            font-size: 1rem;
            cursor: pointer;
            box-shadow: var(--shadow-neon-green);
            transition: all var(--transition-fast);
            text-align: center;
        }

        .btn-cta-block:hover {
            transform: translateY(-2px);
            box-shadow: 0 0 24px rgba(163,230,53,0.6);
        }

        .article-cta-bottom {
            background: linear-gradient(135deg, rgba(163,230,53,0.1) 0%, rgba(6,182,212,0.1) 100%);
            border: 1px solid var(--border-glow);
            border-radius: var(--radius-lg);
            padding: var(--spacing-lg);
            margin-top: var(--spacing-lg);
            text-align: center;
        }

        .article-cta-bottom h3 {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--accent-primary);
            margin-bottom: 8px;
        }

        .article-cta-bottom p {
            color: var(--text-secondary);
            margin-bottom: var(--spacing-md);
        }

        .share-section {
            display: flex;
            align-items: center;
            gap: var(--spacing-sm);
            margin-top: var(--spacing-lg);
            padding-top: var(--spacing-md);
            border-top: 1px solid var(--border-subtle);
        }

        .share-section span {
            font-weight: 600;
            color: var(--text-secondary);
            font-size: 0.9rem;
        }

        .share-btn {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            border: 1px solid var(--border-subtle);
            background: var(--bg-card);
            color: var(--text-secondary);
            cursor: pointer;
            transition: all var(--transition-fast);
            font-size: 1rem;
        }

        .share-btn:hover {
            border-color: var(--accent-primary);
            color: var(--accent-primary);
            box-shadow: var(--shadow-neon-green);
        }

        .not-found-card {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: var(--spacing-xl) var(--spacing-md);
            text-align: center;
            max-width: 720px;
            margin: 0 auto;
        }

        .not-found-card i {
            font-size: 4rem;
            color: var(--accent-pink);
            margin-bottom: var(--spacing-md);
        }

        .not-found-card h3 {
            font-size: 1.8rem;
            color: var(--text-primary);
            margin-bottom: var(--spacing-sm);
        }

        .not-found-card p {
            color: var(--text-secondary);
            margin-bottom: var(--spacing-md);
        }

        .site-footer {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-subtle);
            padding: var(--spacing-xl) 0 var(--spacing-md);
            margin-top: var(--spacing-xl);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: var(--spacing-lg);
        }

        .footer-col h4 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--accent-primary);
            margin-bottom: var(--spacing-sm);
        }

        .footer-col p,
        .footer-col a {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.8;
            display: block;
        }

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

        .footer-bottom {
            text-align: center;
            padding-top: var(--spacing-md);
            border-top: 1px solid var(--border-subtle);
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        .footer-bottom a {
            color: var(--accent-secondary);
        }

        .footer-bottom a:hover {
            color: var(--accent-primary);
        }

        /* FAB */
        .fab-support {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: 50;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: rgba(7, 7, 13, 0.85);
            backdrop-filter: blur(16px);
            border: 2px solid var(--accent-primary);
            box-shadow: var(--shadow-neon-green);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: all var(--transition-fast);
            opacity: 0.8;
            animation: fab-breath 3s ease-in-out infinite;
        }

        .fab-support i {
            font-size: 1.5rem;
            color: var(--accent-primary);
        }

        .fab-support:hover {
            opacity: 1;
            transform: scale(1.1);
            box-shadow: 0 0 28px rgba(163,230,53,0.6);
        }

        @keyframes fab-breath {
            0%,
            100% {
                transform: translateY(0);
            }
            50% {
                transform: translateY(-6px);
            }
        }

        @media (max-width: 1024px) {
            .article-layout {
                grid-template-columns: 1fr;
                gap: 30px;
            }

            .article-sidebar {
                position: static;
                display: grid;
                grid-template-columns: 1fr 1fr;
                gap: var(--spacing-sm);
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 30px;
            }
        }

        @media (max-width: 768px) {
            .nav-primary {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: rgba(7, 7, 13, 0.98);
                flex-direction: column;
                padding: var(--spacing-md);
                border-bottom: 1px solid var(--border-subtle);
            }

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

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

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

            .article-main {
                padding: var(--spacing-md);
            }

            .article-sidebar {
                grid-template-columns: 1fr;
            }

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

            .site-logo {
                font-size: 1.1rem;
            }

            .btn-login,
            .btn-signup {
                padding: 6px 14px;
                font-size: 0.8rem;
            }
        }

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

            .article-main {
                padding: var(--spacing-sm);
            }

            .article-meta {
                gap: var(--spacing-xs);
                font-size: 0.8rem;
            }

            .article-cta-bottom h3 {
                font-size: 1.3rem;
            }
        }

/* roulang page: category1 */
:root {
            --bg-primary: #07070D;
            --bg-secondary: #0E0E1E;
            --bg-card: #13132A;
            --accent-primary: #A3E635;
            --accent-secondary: #06B6D4;
            --accent-pink: #F43F5E;
            --text-primary: #FFFFFF;
            --text-secondary: #94A3B8;
            --text-muted: #64748B;
            --border-subtle: #1E293B;
            --border-glow: rgba(163,230,53,0.3);
            --border-cyan: rgba(6,182,212,0.3);
            --shadow-neon-green: 0 0 15px rgba(163,230,53,0.4);
            --shadow-neon-cyan: 0 0 20px rgba(6,182,212,0.45);
            --shadow-card: 0 8px 24px rgba(0,0,0,0.5);
            --radius-sm: 8px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --radius-xl: 32px;
            --spacing-xs: 8px;
            --spacing-sm: 16px;
            --spacing-md: 24px;
            --spacing-lg: 48px;
            --spacing-xl: 80px;
            --font-sans: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
            --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
            --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-smooth: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        body {
            font-family: var(--font-sans);
            background-color: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
            margin: 0;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-fast);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 var(--spacing-sm);
        }
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(7, 7, 13, 0.85);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-subtle);
            padding: 12px 0;
            transition: all var(--transition-smooth);
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: nowrap;
        }
        .site-logo {
            display: flex;
            align-items: center;
            gap: var(--spacing-xs);
            font-size: 1.5rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            color: var(--accent-primary);
            text-shadow: var(--shadow-neon-green);
            white-space: nowrap;
            flex-shrink: 0;
        }
        .site-logo i {
            font-size: 1.8rem;
        }
        .nav-primary {
            display: flex;
            align-items: center;
            gap: var(--spacing-md);
            list-style: none;
            margin: 0;
            flex-shrink: 0;
        }
        .nav-primary a {
            position: relative;
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-secondary);
            padding: 8px 4px;
            transition: color var(--transition-fast);
            white-space: nowrap;
        }
        .nav-primary a:hover,
        .nav-primary a.active {
            color: var(--accent-primary);
        }
        .nav-primary a.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 2px;
            background: var(--accent-primary);
            box-shadow: var(--shadow-neon-green);
            border-radius: 2px;
        }
        .nav-actions {
            display: flex;
            align-items: center;
            gap: var(--spacing-sm);
            flex-shrink: 0;
        }
        .btn-login {
            padding: 8px 20px;
            border: 1px solid var(--accent-primary);
            color: var(--accent-primary);
            background: transparent;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.9rem;
            cursor: pointer;
            transition: all var(--transition-fast);
        }
        .btn-login:hover {
            background: rgba(163,230,53,0.1);
            box-shadow: 0 0 12px rgba(163,230,53,0.2);
        }
        .btn-signup {
            padding: 8px 20px;
            background: linear-gradient(135deg, var(--accent-primary) 0%, var(--accent-secondary) 100%);
            color: var(--bg-primary);
            border: none;
            border-radius: var(--radius-sm);
            font-weight: 700;
            font-size: 0.9rem;
            cursor: pointer;
            box-shadow: var(--shadow-neon-green);
            transition: all var(--transition-fast);
        }
        .btn-signup:hover {
            transform: translateY(-2px);
            box-shadow: 0 0 24px rgba(163,230,53,0.5);
        }
        .mobile-menu-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--text-primary);
            font-size: 1.8rem;
            cursor: pointer;
        }
        @media (max-width: 1024px) {
            .nav-primary {
                gap: var(--spacing-sm);
            }
            .nav-primary a {
                font-size: 0.85rem;
            }
        }
        @media (max-width: 768px) {
            .nav-primary {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: rgba(7, 7, 13, 0.95);
                backdrop-filter: blur(20px);
                -webkit-backdrop-filter: blur(20px);
                flex-direction: column;
                padding: var(--spacing-md);
                border-bottom: 1px solid var(--border-subtle);
            }
            .nav-primary.active {
                display: flex;
            }
            .nav-actions {
                margin-left: auto;
            }
            .mobile-menu-toggle {
                display: block;
            }
        }
        .page-banner {
            position: relative;
            padding: 120px 0 60px;
            background: url('/assets/images/coverpic/cover-2.png') center/cover no-repeat;
            background-color: var(--bg-secondary);
        }
        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(7,7,13,0.7) 0%, rgba(14,14,30,0.9) 100%);
        }
        .page-banner .container {
            position: relative;
            z-index: 1;
        }
        .page-title {
            font-size: 2.8rem;
            font-weight: 800;
            line-height: 1.2;
            color: var(--accent-primary);
            text-shadow: var(--shadow-neon-green);
            margin-bottom: var(--spacing-sm);
        }
        .page-subtitle {
            font-size: 1.2rem;
            color: var(--text-secondary);
            max-width: 700px;
        }
        .section {
            padding: var(--spacing-xl) 0;
        }
        .section-dark {
            background-color: var(--bg-secondary);
        }
        .section-header {
            margin-bottom: var(--spacing-lg);
        }
        .section-title {
            font-size: 2rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: var(--spacing-xs);
        }
        .section-desc {
            font-size: 1.05rem;
            color: var(--text-secondary);
            max-width: 800px;
        }
        .guide-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: var(--spacing-md);
        }
        .guide-card {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            padding: var(--spacing-md);
            transition: all var(--transition-smooth);
        }
        .guide-card:hover {
            border-color: var(--border-glow);
            box-shadow: var(--shadow-card), 0 0 20px rgba(163,230,53,0.15);
            transform: translateY(-4px);
        }
        .guide-card-icon {
            font-size: 2.5rem;
            color: var(--accent-primary);
            margin-bottom: var(--spacing-sm);
        }
        .guide-card h3 {
            font-size: 1.3rem;
            font-weight: 700;
            margin-bottom: var(--spacing-xs);
            color: var(--text-primary);
        }
        .guide-card p {
            font-size: 0.95rem;
            color: var(--text-secondary);
            margin: 0;
        }
        .step-list {
            list-style: none;
            padding: 0;
            margin: 0;
            counter-reset: step-counter;
        }
        .step-list li {
            counter-increment: step-counter;
            position: relative;
            padding-left: 60px;
            margin-bottom: var(--spacing-md);
            font-size: 1rem;
            color: var(--text-secondary);
        }
        .step-list li::before {
            content: counter(step-counter);
            position: absolute;
            left: 0;
            top: 0;
            width: 44px;
            height: 44px;
            background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
            color: var(--bg-primary);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 1.1rem;
        }
        .step-list li strong {
            display: block;
            color: var(--text-primary);
            font-size: 1.1rem;
            margin-bottom: 4px;
        }
        .tip-card {
            background: var(--bg-card);
            border-left: 4px solid var(--accent-primary);
            border-radius: var(--radius-sm);
            padding: var(--spacing-md);
            margin-bottom: var(--spacing-sm);
        }
        .tip-card h4 {
            color: var(--accent-primary);
            font-size: 1.1rem;
            margin-bottom: 4px;
        }
        .tip-card p {
            color: var(--text-secondary);
            margin: 0;
            font-size: 0.95rem;
        }
        .cta-banner {
            background: linear-gradient(135deg, var(--bg-card) 0%, #1a1a3e 100%);
            border: 1px solid var(--border-glow);
            border-radius: var(--radius-lg);
            padding: var(--spacing-lg);
            text-align: center;
        }
        .cta-banner h2 {
            font-size: 2rem;
            font-weight: 700;
            color: var(--accent-primary);
            margin-bottom: var(--spacing-sm);
        }
        .cta-banner p {
            font-size: 1.05rem;
            color: var(--text-secondary);
            margin-bottom: var(--spacing-md);
        }
        .btn-cta {
            display: inline-block;
            padding: 14px 36px;
            background: linear-gradient(135deg, var(--accent-primary) 0%, var(--accent-secondary) 100%);
            color: var(--bg-primary);
            font-weight: 700;
            font-size: 1rem;
            border-radius: var(--radius-sm);
            box-shadow: var(--shadow-neon-green);
            transition: all var(--transition-fast);
        }
        .btn-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 0 30px rgba(163,230,53,0.5);
            color: var(--bg-primary);
        }
        .faq-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .faq-list li {
            border-bottom: 1px solid var(--border-subtle);
            padding: var(--spacing-md) 0;
        }
        .faq-list li:last-child {
            border-bottom: none;
        }
        .faq-list h4 {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 4px;
        }
        .faq-list p {
            font-size: 0.95rem;
            color: var(--text-secondary);
            margin: 0;
        }
        .news-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: var(--spacing-md);
        }
        .news-card {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition-smooth);
        }
        .news-card:hover {
            border-color: var(--border-glow);
            transform: translateY(-4px);
            box-shadow: var(--shadow-card);
        }
        .news-card img {
            width: 100%;
            height: 180px;
            object-fit: cover;
        }
        .news-card-body {
            padding: var(--spacing-sm) var(--spacing-md);
        }
        .news-card-body h4 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 4px;
        }
        .news-card-body p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            margin-bottom: var(--spacing-xs);
        }
        .news-card-body .news-meta {
            font-size: 0.8rem;
            color: var(--text-muted);
        }
        .site-footer {
            background-color: var(--bg-secondary);
            border-top: 1px solid var(--border-subtle);
            padding: var(--spacing-xl) 0 var(--spacing-md);
            margin-top: var(--spacing-xl);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: var(--spacing-lg);
            margin-bottom: var(--spacing-lg);
        }
        .footer-col h4 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--accent-primary);
            margin-bottom: var(--spacing-sm);
        }
        .footer-col p,
        .footer-col a {
            font-size: 0.9rem;
            color: var(--text-secondary);
            display: block;
            margin-bottom: 6px;
        }
        .footer-col a:hover {
            color: var(--accent-primary);
        }
        .footer-bottom {
            text-align: center;
            padding-top: var(--spacing-md);
            border-top: 1px solid var(--border-subtle);
            font-size: 0.85rem;
            color: var(--text-muted);
        }
        .footer-bottom a {
            color: var(--accent-primary);
        }
        @media (max-width: 768px) {
            .page-title {
                font-size: 2rem;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .guide-grid {
                grid-template-columns: 1fr;
            }
        }

/* roulang page: category2 */
/* roulang design system */
        :root {
            --bg-primary: #07070D;
            --bg-secondary: #0E0E1E;
            --bg-card: #13132A;
            --accent-primary: #A3E635;
            --accent-secondary: #06B6D4;
            --accent-pink: #F43F5E;
            --text-primary: #FFFFFF;
            --text-secondary: #94A3B8;
            --text-muted: #64748B;
            --border-subtle: #1E293B;
            --border-glow: rgba(163,230,53,0.3);
            --border-cyan: rgba(6,182,212,0.3);
            --shadow-neon-green: 0 0 15px rgba(163,230,53,0.4);
            --shadow-neon-cyan: 0 0 20px rgba(6,182,212,0.45);
            --shadow-card: 0 8px 24px rgba(0,0,0,0.5);
            --radius-sm: 8px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --radius-xl: 32px;
            --spacing-xs: 8px;
            --spacing-sm: 16px;
            --spacing-md: 24px;
            --spacing-lg: 48px;
            --spacing-xl: 80px;
            --font-sans: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
            --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
            --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-smooth: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

        *, *::before, *::after {
            box-sizing: border-box;
        }
        body {
            font-family: var(--font-sans);
            background-color: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
            margin: 0;
            padding: 0;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-fast);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 var(--spacing-sm);
        }
        h1, h2, h3, h4, h5, h6 {
            margin-top: 0;
            line-height: 1.3;
        }

        /* Header & Navigation */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(7, 7, 13, 0.85);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-subtle);
            padding: 12px 0;
            transition: all var(--transition-smooth);
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: nowrap;
        }
        .site-logo {
            display: flex;
            align-items: center;
            gap: var(--spacing-xs);
            font-size: 1.5rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            color: var(--accent-primary);
            text-shadow: var(--shadow-neon-green);
            white-space: nowrap;
            flex-shrink: 0;
        }
        .site-logo i {
            font-size: 1.8rem;
        }
        .nav-primary {
            display: flex;
            align-items: center;
            gap: var(--spacing-md);
            list-style: none;
            margin: 0;
            flex-shrink: 0;
        }
        .nav-primary a {
            position: relative;
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-secondary);
            padding: 8px 4px;
            transition: color var(--transition-fast);
            white-space: nowrap;
        }
        .nav-primary a:hover,
        .nav-primary a.active {
            color: var(--accent-primary);
        }
        .nav-primary a.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 2px;
            background: var(--accent-primary);
            box-shadow: var(--shadow-neon-green);
            border-radius: 2px;
        }
        .nav-actions {
            display: flex;
            align-items: center;
            gap: var(--spacing-sm);
            flex-shrink: 0;
        }
        .btn-login {
            padding: 8px 20px;
            border: 1px solid var(--accent-primary);
            color: var(--accent-primary);
            background: transparent;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.9rem;
            cursor: pointer;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .btn-login:hover {
            background: rgba(163,230,53,0.1);
            box-shadow: 0 0 12px rgba(163,230,53,0.2);
        }
        .btn-signup {
            padding: 8px 20px;
            background: linear-gradient(135deg, var(--accent-primary) 0%, var(--accent-secondary) 100%);
            color: var(--bg-primary);
            border: none;
            border-radius: var(--radius-sm);
            font-weight: 700;
            font-size: 0.9rem;
            cursor: pointer;
            box-shadow: var(--shadow-neon-green);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .btn-signup:hover {
            transform: translateY(-2px);
            box-shadow: 0 0 24px rgba(163,230,53,0.5);
        }
        .mobile-menu-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--text-primary);
            font-size: 1.8rem;
            cursor: pointer;
        }

        /* Hero Section */
        .hero-section {
            position: relative;
            padding: 140px 0 100px;
            min-height: 70vh;
            display: flex;
            align-items: center;
            background: url('/assets/images/backpic/back-2.jpg') center/cover no-repeat;
            background-color: var(--bg-secondary);
        }
        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(circle at 30% 50%, rgba(6,182,212,0.15) 0%, rgba(7,7,13,0.9) 70%);
            z-index: 1;
        }
        .hero-section .container {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: var(--spacing-lg);
            align-items: center;
        }
        .hero-content h1 {
            font-size: clamp(2rem, 5vw, 3rem);
            font-weight: 800;
            margin-bottom: var(--spacing-md);
            color: var(--text-primary);
            letter-spacing: -0.5px;
        }
        .hero-content h1 span {
            color: var(--accent-primary);
            text-shadow: var(--shadow-neon-green);
        }
        .hero-content .hero-subtitle {
            font-size: 1.1rem;
            color: var(--text-secondary);
            margin-bottom: var(--spacing-lg);
            line-height: 1.6;
        }
        .hero-form {
            display: flex;
            flex-direction: column;
            gap: var(--spacing-sm);
            max-width: 420px;
        }
        .hero-form .form-group {
            display: flex;
            gap: var(--spacing-sm);
        }
        .hero-form input {
            flex: 1;
            padding: 14px 18px;
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-sm);
            background: rgba(19,19,42,0.8);
            color: var(--text-primary);
            font-size: 1rem;
            transition: border var(--transition-fast);
        }
        .hero-form input:focus {
            outline: none;
            border-color: var(--accent-primary);
            box-shadow: 0 0 8px rgba(163,230,53,0.3);
        }
        .hero-form .btn-cta {
            padding: 14px 28px;
            background: linear-gradient(135deg, var(--accent-primary) 0%, var(--accent-secondary) 100%);
            color: var(--bg-primary);
            border: none;
            border-radius: var(--radius-sm);
            font-weight: 700;
            font-size: 1rem;
            cursor: pointer;
            box-shadow: var(--shadow-neon-green);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .hero-form .btn-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 0 28px rgba(163,230,53,0.5);
        }
        .hero-form .form-note {
            font-size: 0.8rem;
            color: var(--text-muted);
        }
        .hero-image-wrapper {
            position: relative;
            display: flex;
            justify-content: center;
            align-items: center;
        }
        .hero-image-wrapper img {
            max-width: 100%;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-card);
        }
        .hero-floating-badge {
            position: absolute;
            top: -10px;
            right: -10px;
            background: var(--accent-pink);
            color: #fff;
            padding: 6px 16px;
            border-radius: 20px;
            font-weight: 700;
            font-size: 0.8rem;
            box-shadow: 0 0 20px rgba(244,63,94,0.4);
            z-index: 3;
        }

        /* Section Common */
        .section-padding {
            padding: var(--spacing-xl) 0;
        }
        .section-header {
            margin-bottom: var(--spacing-lg);
            text-align: left;
        }
        .section-header h2 {
            font-size: clamp(1.6rem, 4vw, 2.2rem);
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: var(--spacing-sm);
        }
        .section-header p {
            font-size: 1rem;
            color: var(--text-secondary);
            max-width: 700px;
        }
        .section-header .badge-label {
            display: inline-block;
            background: rgba(163,230,53,0.1);
            color: var(--accent-primary);
            border: 1px solid var(--border-glow);
            padding: 4px 14px;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 600;
            margin-bottom: var(--spacing-sm);
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }

        /* Value Props Grid */
        .value-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--spacing-md);
            margin-top: var(--spacing-md);
        }
        .value-card {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            padding: var(--spacing-lg);
            transition: all var(--transition-smooth);
            text-align: left;
        }
        .value-card:hover {
            border-color: var(--border-glow);
            box-shadow: 0 4px 24px rgba(163,230,53,0.1);
            transform: translateY(-4px);
        }
        .value-card .value-icon {
            font-size: 2rem;
            color: var(--accent-primary);
            margin-bottom: var(--spacing-sm);
        }
        .value-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: var(--spacing-xs);
            color: var(--text-primary);
        }
        .value-card p {
            font-size: 0.95rem;
            color: var(--text-secondary);
            margin: 0;
        }

        /* Top List */
        .top-list-section {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-subtle);
            border-bottom: 1px solid var(--border-subtle);
        }
        .top-list-grid {
            display: flex;
            flex-direction: column;
            gap: var(--spacing-md);
            margin-top: var(--spacing-md);
        }
        .top-list-item {
            display: grid;
            grid-template-columns: 60px 1fr auto;
            gap: var(--spacing-lg);
            align-items: center;
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            padding: var(--spacing-md) var(--spacing-lg);
            transition: all var(--transition-smooth);
        }
        .top-list-item:hover {
            border-color: var(--border-cyan);
            box-shadow: 0 4px 20px rgba(6,182,212,0.1);
        }
        .top-rank {
            font-size: 2.2rem;
            font-weight: 800;
            font-family: var(--font-mono);
            color: var(--accent-primary);
            text-shadow: var(--shadow-neon-green);
            text-align: center;
        }
        .top-info h3 {
            font-size: 1.3rem;
            font-weight: 700;
            margin-bottom: 4px;
            color: var(--text-primary);
        }
        .top-info .top-meta {
            display: flex;
            gap: var(--spacing-sm);
            flex-wrap: wrap;
        }
        .top-meta .meta-tag {
            font-size: 0.8rem;
            background: rgba(163,230,53,0.1);
            color: var(--accent-primary);
            padding: 3px 10px;
            border-radius: 12px;
        }
        .top-meta .meta-rating {
            font-size: 0.85rem;
            color: var(--accent-secondary);
            font-weight: 600;
        }
        .top-list-item .btn-visit {
            padding: 10px 24px;
            background: linear-gradient(135deg, var(--accent-primary) 0%, var(--accent-secondary) 100%);
            color: var(--bg-primary);
            border: none;
            border-radius: var(--radius-sm);
            font-weight: 700;
            font-size: 0.9rem;
            cursor: pointer;
            white-space: nowrap;
            transition: all var(--transition-fast);
        }
        .top-list-item .btn-visit:hover {
            transform: scale(1.05);
            box-shadow: var(--shadow-neon-cyan);
        }

        /* Scene Cards */
        .scene-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: var(--spacing-md);
            margin-top: var(--spacing-md);
        }
        .scene-card {
            position: relative;
            border-radius: var(--radius-md);
            overflow: hidden;
            min-height: 250px;
            display: flex;
            align-items: flex-end;
            background-size: cover;
            background-position: center;
            transition: all var(--transition-smooth);
        }
        .scene-card::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(0deg, rgba(7,7,13,0.9) 0%, rgba(7,7,13,0.4) 60%);
            z-index: 1;
        }
        .scene-card-content {
            position: relative;
            z-index: 2;
            padding: var(--spacing-lg);
            width: 100%;
        }
        .scene-card-content h3 {
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 6px;
        }
        .scene-card-content p {
            font-size: 0.95rem;
            color: var(--text-secondary);
            margin: 0;
        }
        .scene-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card);
        }

        /* Social Proof */
        .social-proof-section {
            background: var(--bg-card);
            border-top: 1px solid var(--border-glow);
            border-bottom: 1px solid var(--border-glow);
        }
        .stats-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--spacing-md);
            text-align: left;
        }
        .stat-item .stat-number {
            font-size: 2rem;
            font-weight: 800;
            font-family: var(--font-mono);
            color: var(--accent-primary);
        }
        .stat-item .stat-label {
            font-size: 0.9rem;
            color: var(--text-secondary);
            margin-top: 4px;
        }

        /* Compare Section */
        .compare-table-wrapper {
            overflow-x: auto;
            margin-top: var(--spacing-md);
        }
        .compare-table {
            width: 100%;
            border-collapse: collapse;
            font-size: 0.95rem;
        }
        .compare-table th {
            background: var(--bg-card);
            padding: 14px 18px;
            border-bottom: 1px solid var(--border-subtle);
            color: var(--accent-primary);
            font-weight: 700;
            text-align: left;
        }
        .compare-table td {
            padding: 12px 18px;
            border-bottom: 1px solid var(--border-subtle);
            color: var(--text-secondary);
        }
        .compare-table tr:hover td {
            background: rgba(163,230,53,0.03);
        }
        .compare-badge {
            display: inline-block;
            padding: 2px 10px;
            border-radius: 12px;
            font-size: 0.8rem;
            font-weight: 600;
            background: rgba(163,230,53,0.1);
            color: var(--accent-primary);
        }

        /* Info List */
        .info-list-section {
            background: var(--bg-primary);
        }
        .info-list {
            display: flex;
            flex-direction: column;
            gap: var(--spacing-sm);
            margin-top: var(--spacing-md);
        }
        .info-list-item {
            display: flex;
            gap: var(--spacing-sm);
            align-items: flex-start;
        }
        .info-list-item i {
            color: var(--accent-primary);
            font-size: 1.2rem;
            margin-top: 3px;
            flex-shrink: 0;
        }
        .info-list-item p {
            font-size: 0.95rem;
            color: var(--text-secondary);
            margin: 0;
        }

        /* CTA Bar */
        .cta-bar {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 999;
            background: rgba(7, 7, 13, 0.95);
            backdrop-filter: blur(20px);
            border-top: 2px solid var(--border-glow);
            padding: 14px 0;
        }
        .cta-bar .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: var(--spacing-md);
        }
        .cta-bar-text {
            font-weight: 600;
            font-size: 1rem;
            color: var(--text-primary);
        }
        .cta-bar-text i {
            color: var(--accent-primary);
            margin-right: 6px;
        }
        .btn-cta-lg {
            padding: 12px 32px;
            background: linear-gradient(135deg, var(--accent-primary) 0%, var(--accent-secondary) 100%);
            color: var(--bg-primary);
            border: none;
            border-radius: var(--radius-sm);
            font-weight: 700;
            font-size: 1rem;
            cursor: pointer;
            box-shadow: var(--shadow-neon-green);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .btn-cta-lg:hover {
            transform: translateY(-2px);
            box-shadow: 0 0 28px rgba(163,230,53,0.5);
        }

        /* News List */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--spacing-md);
            margin-top: var(--spacing-md);
        }
        .news-card {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition-smooth);
        }
        .news-card:hover {
            border-color: var(--border-cyan);
            box-shadow: 0 4px 20px rgba(6,182,212,0.1);
            transform: translateY(-4px);
        }
        .news-card-img {
            width: 100%;
            height: 180px;
            object-fit: cover;
        }
        .news-card-body {
            padding: var(--spacing-md);
        }
        .news-card-body .news-tag {
            font-size: 0.75rem;
            background: rgba(163,230,53,0.1);
            color: var(--accent-primary);
            padding: 2px 10px;
            border-radius: 10px;
            display: inline-block;
            margin-bottom: 8px;
        }
        .news-card-body h3 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 6px;
            color: var(--text-primary);
        }
        .news-card-body p {
            font-size: 0.85rem;
            color: var(--text-secondary);
            margin: 0 0 8px;
        }
        .news-card-body .news-meta {
            font-size: 0.75rem;
            color: var(--text-muted);
        }

        /* Footer */
        .site-footer {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-subtle);
            padding: var(--spacing-xl) 0 var(--spacing-md);
            margin-top: var(--spacing-xl);
            margin-bottom: 80px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--spacing-lg);
            margin-bottom: var(--spacing-lg);
        }
        .footer-col h4 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--accent-primary);
            margin-bottom: var(--spacing-sm);
        }
        .footer-col p, .footer-col a {
            font-size: 0.9rem;
            color: var(--text-secondary);
            display: block;
            margin-bottom: 6px;
            transition: color var(--transition-fast);
        }
        .footer-col a:hover {
            color: var(--accent-primary);
        }
        .footer-bottom {
            text-align: center;
            padding-top: var(--spacing-md);
            border-top: 1px solid var(--border-subtle);
            font-size: 0.8rem;
            color: var(--text-muted);
        }
        .footer-bottom a {
            color: var(--accent-primary);
        }

        /* FAB */
        .floating-fab {
            position: fixed;
            left: 16px;
            bottom: 120px;
            z-index: 50;
            width: 56px;
            height: 56px;
            background: rgba(7,7,13,0.85);
            backdrop-filter: blur(12px);
            border: 2px solid transparent;
            border-image: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary)) 1;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            color: var(--accent-primary);
            cursor: pointer;
            box-shadow: 0 0 20px rgba(6,182,212,0.45);
            transition: all var(--transition-smooth);
        }
        .floating-fab:hover {
            transform: scale(1.1);
            box-shadow: 0 0 30px rgba(6,182,212,0.65);
        }

        /* Responsive */
        @media screen and (max-width: 1024px) {
            .hero-section .container {
                grid-template-columns: 1fr;
                text-align: left;
            }
            .hero-form {
                margin: 0;
            }
            .value-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-row {
                grid-template-columns: repeat(2, 1fr);
            }
            .scene-grid {
                grid-template-columns: 1fr;
            }
            .news-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media screen and (max-width: 768px) {
            .nav-primary {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: rgba(7,7,13,0.95);
                backdrop-filter: blur(20px);
                flex-direction: column;
                padding: var(--spacing-md);
                border-bottom: 1px solid var(--border-subtle);
            }
            .nav-primary.open {
                display: flex;
            }
            .mobile-menu-toggle {
                display: block;
            }
            .hero-section {
                padding: 120px 0 60px;
                min-height: auto;
            }
            .value-grid {
                grid-template-columns: 1fr;
            }
            .curve-divider {
                height: 40px;
            }
            .news-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .top-list-item {
                grid-template-columns: 40px 1fr;
            }
            .top-list-item .btn-visit {
                grid-column: 1 / -1;
                margin-top: var(--spacing-sm);
                width: 100%;
                text-align: center;
            }
            .cta-bar .container {
                flex-direction: column;
                text-align: center;
            }
        }
        @media screen and (max-width: 520px) {
            .hero-section h1 {
                font-size: 1.6rem;
            }
            .hero-form .form-group {
                flex-direction: column;
            }
            .stats-row {
                grid-template-columns: 1fr 1fr;
            }
        }

/* roulang page: category3 */
:root {
    --bg-primary: #07070D;
    --bg-secondary: #0E0E1E;
    --bg-card: #13132A;
    --accent-primary: #A3E635;
    --accent-secondary: #06B6D4;
    --accent-pink: #F43F5E;
    --text-primary: #FFFFFF;
    --text-secondary: #94A3B8;
    --text-muted: #64748B;
    --border-subtle: #1E293B;
    --border-glow: rgba(163,230,53,0.3);
    --border-cyan: rgba(6,182,212,0.3);
    --shadow-neon-green: 0 0 15px rgba(163,230,53,0.4);
    --shadow-neon-cyan: 0 0 20px rgba(6,182,212,0.45);
    --shadow-card: 0 8px 24px rgba(0,0,0,0.5);
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --radius-xl: 32px;
    --spacing-xs: 8px;
    --spacing-sm: 16px;
    --spacing-md: 24px;
    --spacing-lg: 48px;
    --spacing-xl: 80px;
    --font-sans: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-smooth: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font-sans);background-color:var(--bg-primary);color:var(--text-primary);line-height:1.6;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;overflow-x:hidden}
a{text-decoration:none;color:inherit;transition:color var(--transition-fast)}
img{max-width:100%;height:auto;display:block}
.container{max-width:1280px;margin:0 auto;padding:0 var(--spacing-sm)}
button,input,select,textarea{font-family:inherit}
h1,h2,h3,h4,h5,h6{line-height:1.3;font-weight:700;color:var(--text-primary)}

.site-header{position:fixed;top:0;left:0;right:0;z-index:1000;background:rgba(7,7,13,0.88);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border-bottom:1px solid var(--border-subtle);padding:14px 0;transition:all var(--transition-smooth)}
.site-header .container{display:flex;align-items:center;justify-content:space-between;flex-wrap:nowrap}
.site-logo{display:flex;align-items:center;gap:var(--spacing-xs);font-size:1.4rem;font-weight:800;letter-spacing:-0.5px;color:var(--accent-primary);text-shadow:var(--shadow-neon-green);white-space:nowrap;flex-shrink:0}
.site-logo i{font-size:1.6rem}
.nav-primary{display:flex;align-items:center;gap:var(--spacing-md);list-style:none;margin:0;flex-shrink:0}
.nav-primary a{position:relative;font-size:0.9rem;font-weight:500;color:var(--text-secondary);padding:8px 6px;transition:color var(--transition-fast);white-space:nowrap}
.nav-primary a:hover,.nav-primary a.active{color:var(--accent-primary)}
.nav-primary a.active::after{content:'';position:absolute;bottom:0;left:0;right:0;height:2px;background:var(--accent-primary);box-shadow:var(--shadow-neon-green);border-radius:2px}
.nav-actions{display:flex;align-items:center;gap:var(--spacing-sm);flex-shrink:0}
.btn-login{padding:8px 20px;border:1px solid var(--accent-primary);color:var(--accent-primary);background:transparent;border-radius:var(--radius-sm);font-weight:600;font-size:0.9rem;cursor:pointer;transition:all var(--transition-fast);white-space:nowrap}
.btn-login:hover{background:rgba(163,230,53,0.1);box-shadow:0 0 12px rgba(163,230,53,0.2)}
.btn-signup{padding:8px 20px;background:linear-gradient(135deg,var(--accent-primary) 0%,var(--accent-secondary) 100%);color:var(--bg-primary);border:none;border-radius:var(--radius-sm);font-weight:700;font-size:0.9rem;cursor:pointer;box-shadow:var(--shadow-neon-green);transition:all var(--transition-fast);white-space:nowrap}
.btn-signup:hover{transform:translateY(-2px);box-shadow:0 0 24px rgba(163,230,53,0.5)}
.mobile-menu-toggle{display:none;background:none;border:none;color:var(--text-primary);font-size:1.8rem;cursor:pointer}

.category-hero{position:relative;padding:150px 0 90px;background:url('/assets/images/backpic/back-3.jpg') center/cover no-repeat;background-color:var(--bg-secondary)}
.category-hero::before{content:'';position:absolute;inset:0;background:linear-gradient(180deg,rgba(7,7,13,0.7) 0%,rgba(14,14,30,0.92) 100%)}
.category-hero-content{position:relative;z-index:1;max-width:800px;margin:0}
.category-hero-content h1{font-size:2.8rem;font-weight:800;margin-bottom:var(--spacing-md);background:linear-gradient(135deg,var(--accent-primary) 0%,var(--accent-secondary) 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;line-height:1.2}
.category-hero-content p{font-size:1.15rem;color:var(--text-secondary);line-height:1.7;margin-bottom:var(--spacing-md)}
.category-hero-badge{display:inline-flex;align-items:center;gap:8px;background:rgba(163,230,53,0.15);border:1px solid var(--border-glow);padding:8px 18px;border-radius:50px;font-size:0.85rem;font-weight:600;color:var(--accent-primary);margin-bottom:var(--spacing-sm)}
.hero-cta-group{display:flex;gap:var(--spacing-sm);flex-wrap:wrap;margin-top:var(--spacing-md)}
.btn-primary-glow{padding:14px 32px;background:linear-gradient(135deg,var(--accent-primary) 0%,var(--accent-secondary) 100%);color:var(--bg-primary);border:none;border-radius:var(--radius-sm);font-weight:700;font-size:1rem;cursor:pointer;box-shadow:var(--shadow-neon-green);transition:all var(--transition-fast);display:inline-flex;align-items:center;gap:8px}
.btn-primary-glow:hover{transform:translateY(-2px);box-shadow:0 0 28px rgba(163,230,53,0.5)}
.btn-outline-glow{padding:14px 32px;border:2px solid var(--accent-primary);color:var(--accent-primary);background:transparent;border-radius:var(--radius-sm);font-weight:600;font-size:1rem;cursor:pointer;transition:all var(--transition-fast);display:inline-flex;align-items:center;gap:8px}
.btn-outline-glow:hover{background:rgba(163,230,53,0.1);box-shadow:0 0 16px rgba(163,230,53,0.25)}

.section-padding{padding:var(--spacing-lg) 0}
.section-header{margin-bottom:var(--spacing-lg)}
.section-header h2{font-size:2rem;font-weight:800;color:var(--text-primary);margin-bottom:var(--spacing-xs)}
.section-header .section-badge{display:inline-block;background:rgba(6,182,212,0.15);color:var(--accent-secondary);border:1px solid var(--border-cyan);border-radius:50px;padding:4px 14px;font-size:0.8rem;font-weight:600;margin-bottom:var(--spacing-xs)}
.section-header p{font-size:1.05rem;color:var(--text-secondary);margin-top:var(--spacing-xs)}

.promo-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:var(--spacing-md)}
.promo-card{background:var(--bg-card);border:1px solid var(--border-subtle);border-radius:var(--radius-lg);padding:var(--spacing-md);transition:all var(--transition-smooth);position:relative;overflow:hidden;cursor:pointer}
.promo-card:hover{border-color:var(--border-glow);box-shadow:0 0 20px rgba(163,230,53,0.2);transform:translateY(-4px)}
.promo-card::before{content:'';position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--accent-primary) 0%,var(--accent-secondary) 100%)}
.promo-card-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:var(--spacing-sm)}
.promo-tag{background:rgba(244,63,94,0.2);color:var(--accent-pink);border:1px solid rgba(244,63,94,0.4);border-radius:50px;padding:4px 12px;font-size:0.75rem;font-weight:700;text-transform:uppercase}
.promo-value{font-size:2.2rem;font-weight:800;color:var(--accent-primary);margin-bottom:var(--spacing-xs)}
.promo-title{font-size:1.2rem;font-weight:700;color:var(--text-primary);margin-bottom:8px}
.promo-desc{font-size:0.9rem;color:var(--text-secondary);line-height:1.5;margin-bottom:var(--spacing-sm)}
.promo-meta{display:flex;flex-wrap:wrap;gap:12px;font-size:0.8rem;color:var(--text-muted)}
.promo-meta span{display:flex;align-items:center;gap:4px}

.benefit-list{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:var(--spacing-md);margin-top:var(--spacing-md)}
.benefit-item{display:flex;gap:var(--spacing-sm);padding:var(--spacing-md);background:var(--bg-card);border:1px solid var(--border-subtle);border-radius:var(--radius-md);transition:all var(--transition-fast)}
.benefit-item:hover{border-color:var(--border-cyan)}
.benefit-icon{width:48px;height:48px;min-width:48px;background:rgba(6,182,212,0.15);border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;font-size:1.3rem;color:var(--accent-secondary)}
.benefit-text h4{font-size:1.05rem;font-weight:700;color:var(--text-primary);margin-bottom:4px}
.benefit-text p{font-size:0.9rem;color:var(--text-secondary);line-height:1.5}

.comparison-table-wrap{overflow-x:auto;margin-top:var(--spacing-md)}
.comparison-table{width:100%;min-width:700px;border-collapse:collapse}
.comparison-table thead th{background:var(--bg-card);padding:16px;text-align:left;font-weight:700;color:var(--accent-primary);border-bottom:2px solid var(--border-glow);font-size:0.9rem}
.comparison-table tbody td{padding:14px 16px;border-bottom:1px solid var(--border-subtle);font-size:0.9rem;color:var(--text-secondary)}
.comparison-table tbody tr:hover{background:rgba(163,230,53,0.03)}
.comparison-table .highlight-row{background:rgba(163,230,53,0.05);color:var(--accent-primary);font-weight:600}

.timeline-steps{display:flex;flex-direction:column;gap:0;position:relative;padding-left:40px;margin-top:var(--spacing-md)}
.timeline-steps::before{content:'';position:absolute;left:18px;top:0;bottom:0;width:2px;background:var(--border-cyan)}
.timeline-step{position:relative;padding:var(--spacing-sm) 0 var(--spacing-sm) var(--spacing-md)}
.timeline-step::before{content:'';position:absolute;left:-28px;top:50%;transform:translateY(-50%);width:16px;height:16px;background:var(--accent-secondary);border-radius:50%;border:3px solid var(--bg-primary);box-shadow:0 0 12px rgba(6,182,212,0.5);z-index:1}
.timeline-step h4{font-size:1.1rem;font-weight:700;color:var(--accent-secondary);margin-bottom:4px}
.timeline-step p{font-size:0.9rem;color:var(--text-secondary);line-height:1.6}

.news-list{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:var(--spacing-md)}
.news-card{background:var(--bg-card);border:1px solid var(--border-subtle);border-radius:var(--radius-md);overflow:hidden;transition:all var(--transition-smooth)}
.news-card:hover{border-color:var(--border-cyan);box-shadow:var(--shadow-card);transform:translateY(-2px)}
.news-card-image{width:100%;height:200px;object-fit:cover}
.news-card-body{padding:var(--spacing-sm)}
.news-card-body h4{font-size:1.05rem;font-weight:700;color:var(--text-primary);margin-bottom:8px;line-height:1.4}
.news-card-body p{font-size:0.85rem;color:var(--text-secondary);line-height:1.5;margin-bottom:12px}
.news-card-meta{display:flex;justify-content:space-between;align-items:center;font-size:0.75rem;color:var(--text-muted)}
.news-card-meta span{display:flex;align-items:center;gap:4px}

.faq-section{margin-top:var(--spacing-lg)}
.faq-item{border:1px solid var(--border-subtle);border-radius:var(--radius-md);margin-bottom:var(--spacing-sm);background:var(--bg-card);overflow:hidden}
.faq-question{padding:var(--spacing-sm) var(--spacing-md);font-weight:700;font-size:1rem;color:var(--text-primary);cursor:pointer;display:flex;justify-content:space-between;align-items:center;transition:all var(--transition-fast)}
.faq-question:hover{color:var(--accent-secondary)}
.faq-question i{transition:transform var(--transition-fast)}
.faq-answer{padding:0 var(--spacing-md) var(--spacing-sm);font-size:0.9rem;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)}

.cta-banner{position:relative;background:linear-gradient(135deg,var(--bg-secondary) 0%,var(--bg-card) 100%);border:1px solid var(--border-glow);border-radius:var(--radius-lg);padding:var(--spacing-lg);text-align:left;margin-top:var(--spacing-lg)}
.cta-banner h3{font-size:1.8rem;font-weight:800;color:var(--accent-primary);margin-bottom:var(--spacing-sm)}
.cta-banner p{font-size:1.05rem;color:var(--text-secondary);line-height:1.6;margin-bottom:var(--spacing-md)}
.btn-cta-large{padding:16px 40px;background:linear-gradient(135deg,var(--accent-pink) 0%,var(--accent-primary) 100%);color:var(--bg-primary);border:none;border-radius:var(--radius-sm);font-weight:700;font-size:1.1rem;cursor:pointer;box-shadow:0 0 20px rgba(244,63,94,0.4);transition:all var(--transition-fast);display:inline-flex;align-items:center;gap:8px}
.btn-cta-large:hover{transform:translateY(-3px);box-shadow:0 0 30px rgba(244,63,94,0.6)}

.site-footer{background:var(--bg-secondary);border-top:1px solid var(--border-subtle);padding:var(--spacing-lg) 0 var(--spacing-md);margin-top:var(--spacing-xl)}
.footer-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:var(--spacing-md);margin-bottom:var(--spacing-lg)}
.footer-col h4{font-size:1.1rem;font-weight:700;color:var(--accent-primary);margin-bottom:var(--spacing-sm)}
.footer-col p,.footer-col a{font-size:0.9rem;color:var(--text-secondary);line-height:1.8;display:inline-block}
.footer-col a:hover{color:var(--accent-primary)}
.footer-bottom{text-align:center;padding-top:var(--spacing-md);border-top:1px solid var(--border-subtle);font-size:0.8rem;color:var(--text-muted)}
.footer-bottom a{color:var(--accent-secondary);text-decoration:underline}

.fab-chat{position:fixed;left:20px;bottom:100px;z-index:999;width:56px;height:56px;background:rgba(7,7,13,0.85);backdrop-filter:blur(12px);border:2px solid var(--accent-primary);border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:1.5rem;color:var(--accent-primary);cursor:pointer;box-shadow:0 0 20px rgba(163,230,53,0.35);transition:all var(--transition-fast);animation:fabFloat 3s ease-in-out infinite}
.fab-chat:hover{transform:scale(1.1);box-shadow:0 0 30px rgba(163,230,53,0.5)}
@keyframes fabFloat{0%,100%{transform:translateY(0)}50%{transform:translateY(-6px)}}

@media(max-width:1024px){
    .category-hero-content h1{font-size:2.2rem}
    .promo-grid{grid-template-columns:repeat(auto-fit,minmax(280px,1fr))}
}
@media(max-width:768px){
    .nav-primary{display:none;position:absolute;top:100%;left:0;right:0;background:rgba(7,7,13,0.98);backdrop-filter:blur(20px);flex-direction:column;padding:var(--spacing-md);border-bottom:1px solid var(--border-subtle)}
    .nav-primary.open{display:flex}
    .mobile-menu-toggle{display:block}
    .category-hero{padding:120px 0 60px}
    .category-hero-content h1{font-size:1.8rem}
    .category-hero-content p{font-size:1rem}
    .cta-banner{padding:var(--spacing-md)}
    .cta-banner h3{font-size:1.4rem}
    .comparison-table-wrap{overflow-x:scroll;-webkit-overflow-scrolling:touch}
}
@media(max-width:520px){
    .site-logo{font-size:1.1rem}
    .btn-login,.btn-signup{padding:6px 14px;font-size:0.8rem}
    .hero-cta-group{flex-direction:column}
    .promo-card{padding:var(--spacing-sm)}
    .promo-value{font-size:1.8rem}
}

/* roulang page: category4 */
:root {
            --bg-primary: #07070D;
            --bg-secondary: #0E0E1E;
            --bg-card: #13132A;
            --accent-primary: #A3E635;
            --accent-secondary: #06B6D4;
            --accent-pink: #F43F5E;
            --text-primary: #FFFFFF;
            --text-secondary: #94A3B8;
            --text-muted: #64748B;
            --border-subtle: #1E293B;
            --border-glow: rgba(163,230,53,0.3);
            --border-cyan: rgba(6,182,212,0.3);
            --shadow-neon-green: 0 0 15px rgba(163,230,53,0.4);
            --shadow-neon-cyan: 0 0 20px rgba(6,182,212,0.45);
            --shadow-card: 0 8px 24px rgba(0,0,0,0.5);
            --radius-sm: 8px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --radius-xl: 32px;
            --spacing-xs: 8px;
            --spacing-sm: 16px;
            --spacing-md: 24px;
            --spacing-lg: 48px;
            --spacing-xl: 80px;
            --font-sans: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
            --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
            --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-smooth: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        body {
            font-family: var(--font-sans);
            background-color: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
            padding-top: 80px;
        }

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

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

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

        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(7, 7, 13, 0.85);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-subtle);
            padding: 12px 0;
            transition: all var(--transition-smooth);
        }

        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: nowrap;
        }

        .site-logo {
            display: flex;
            align-items: center;
            gap: var(--spacing-xs);
            font-size: 1.5rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            color: var(--accent-primary);
            text-shadow: var(--shadow-neon-green);
            white-space: nowrap;
            flex-shrink: 0;
        }

        .site-logo i {
            font-size: 1.8rem;
        }

        .nav-primary {
            display: flex;
            align-items: center;
            gap: var(--spacing-md);
            list-style: none;
            margin: 0;
            flex-shrink: 0;
        }

        .nav-primary a {
            position: relative;
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-secondary);
            padding: 8px 4px;
            transition: color var(--transition-fast);
            white-space: nowrap;
        }

        .nav-primary a:hover,
        .nav-primary a.active {
            color: var(--accent-primary);
        }

        .nav-primary a.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 2px;
            background: var(--accent-primary);
            box-shadow: var(--shadow-neon-green);
            border-radius: 2px;
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: var(--spacing-sm);
            flex-shrink: 0;
        }

        .btn-login {
            padding: 8px 20px;
            border: 1px solid var(--accent-primary);
            color: var(--accent-primary);
            background: transparent;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.9rem;
            cursor: pointer;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .btn-login:hover {
            background: rgba(163,230,53,0.1);
            box-shadow: 0 0 12px rgba(163,230,53,0.2);
        }

        .btn-signup {
            padding: 8px 20px;
            background: linear-gradient(135deg, var(--accent-primary) 0%, var(--accent-secondary) 100%);
            color: var(--bg-primary);
            border: none;
            border-radius: var(--radius-sm);
            font-weight: 700;
            font-size: 0.9rem;
            cursor: pointer;
            box-shadow: var(--shadow-neon-green);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .btn-signup:hover {
            transform: translateY(-2px);
            box-shadow: 0 0 24px rgba(163,230,53,0.5);
        }

        .mobile-menu-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--text-primary);
            font-size: 1.8rem;
            cursor: pointer;
        }

        .banner-inner {
            position: relative;
            padding: 80px 0 60px;
            background: url('/assets/images/backpic/back-4.jpg') center/cover no-repeat;
            background-color: var(--bg-secondary);
            border-bottom: 1px solid var(--border-subtle);
            text-align: left;
        }

        .banner-inner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(7,7,13,0.92) 0%, rgba(14,14,30,0.7) 100%);
            z-index: 1;
        }

        .banner-inner .container {
            position: relative;
            z-index: 2;
        }

        .banner-inner h1 {
            font-size: 2.8rem;
            font-weight: 800;
            color: var(--accent-primary);
            text-shadow: 0 0 25px rgba(163,230,53,0.5);
            margin-bottom: var(--spacing-sm);
            line-height: 1.3;
        }

        .banner-inner p {
            font-size: 1.2rem;
            color: var(--text-secondary);
            max-width: 800px;
            margin-bottom: var(--spacing-md);
        }

        .timeline-strip {
            display: flex;
            gap: var(--spacing-md);
            flex-wrap: wrap;
            align-items: center;
            background: rgba(19,19,42,0.7);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            padding: var(--spacing-sm) var(--spacing-md);
            backdrop-filter: blur(10px);
            margin-top: var(--spacing-sm);
        }

        .timeline-node {
            display: flex;
            align-items: center;
            gap: var(--spacing-xs);
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--text-secondary);
        }

        .timeline-node.active {
            color: var(--accent-primary);
        }

        .timeline-node i {
            color: var(--accent-secondary);
        }

        .timeline-sep {
            color: var(--text-muted);
            font-weight: 300;
        }

        .subscribe-box {
            margin-left: auto;
            display: flex;
            gap: var(--spacing-xs);
            align-items: center;
        }

        .subscribe-box input {
            background: var(--bg-primary);
            border: 1px solid var(--border-subtle);
            color: var(--text-primary);
            padding: 8px 16px;
            border-radius: var(--radius-sm);
            font-size: 0.9rem;
            min-width: 220px;
        }

        .subscribe-box input::placeholder {
            color: var(--text-muted);
        }

        .btn-sub {
            padding: 8px 20px;
            background: var(--accent-secondary);
            color: var(--bg-primary);
            border: none;
            border-radius: var(--radius-sm);
            font-weight: 700;
            cursor: pointer;
            box-shadow: 0 0 14px rgba(6,182,212,0.4);
            transition: all var(--transition-fast);
        }

        .btn-sub:hover {
            background: var(--accent-primary);
            box-shadow: 0 0 20px rgba(163,230,53,0.5);
        }

        .section-spacing {
            padding: 70px 0;
        }

        .section-title {
            font-size: 2rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: var(--spacing-xs);
            position: relative;
            display: inline-block;
        }

        .section-title::after {
            content: '';
            position: absolute;
            bottom: -6px;
            left: 0;
            width: 60px;
            height: 3px;
            background: linear-gradient(90deg, var(--accent-primary), var(--accent-secondary));
            box-shadow: 0 0 12px rgba(6,182,212,0.5);
            border-radius: 2px;
        }

        .section-desc {
            color: var(--text-secondary);
            font-size: 1.05rem;
            margin-bottom: var(--spacing-lg);
            max-width: 800px;
        }

        .tactic-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: var(--spacing-md);
        }

        .tactic-card {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            padding: var(--spacing-md);
            transition: all var(--transition-smooth);
            display: flex;
            flex-direction: column;
            gap: var(--spacing-xs);
        }

        .tactic-card:hover {
            border-color: var(--accent-secondary);
            box-shadow: 0 0 20px rgba(6,182,212,0.15);
            transform: translateY(-4px);
        }

        .tactic-icon {
            font-size: 2.2rem;
            color: var(--accent-primary);
            margin-bottom: var(--spacing-xs);
        }

        .tactic-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--text-primary);
        }

        .tactic-card p {
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.6;
        }

        .stat-row {
            display: flex;
            gap: var(--spacing-md);
            flex-wrap: wrap;
            background: var(--bg-card);
            border: 1px solid var(--border-cyan);
            border-radius: var(--radius-lg);
            padding: var(--spacing-md) var(--spacing-lg);
            margin-top: var(--spacing-lg);
        }

        .stat-item {
            flex: 1;
            min-width: 120px;
            text-align: center;
        }

        .stat-value {
            font-size: 2rem;
            font-weight: 800;
            color: var(--accent-secondary);
            text-shadow: 0 0 14px rgba(6,182,212,0.5);
        }

        .stat-label {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-top: 4px;
        }

        .case-study {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: var(--spacing-lg);
            align-items: center;
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: var(--spacing-lg);
            margin-top: var(--spacing-lg);
        }

        .case-study img {
            border-radius: var(--radius-md);
            border: 1px solid var(--border-glow);
        }

        .case-text h3 {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--accent-primary);
            margin-bottom: var(--spacing-xs);
        }

        .case-text p {
            color: var(--text-secondary);
        }

        .articles-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: var(--spacing-md);
        }

        .article-card {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition-smooth);
            display: flex;
            flex-direction: column;
        }

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

        .article-card img {
            height: 200px;
            object-fit: cover;
            width: 100%;
        }

        .article-body {
            padding: var(--spacing-sm) var(--spacing-md) var(--spacing-md);
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .article-body h3 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 6px;
            color: var(--text-primary);
        }

        .article-body p {
            color: var(--text-secondary);
            font-size: 0.9rem;
            flex: 1;
        }

        .article-date {
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-top: var(--spacing-xs);
        }

        .faq-block {
            display: flex;
            flex-direction: column;
            gap: var(--spacing-sm);
            margin-top: var(--spacing-md);
        }

        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            padding: var(--spacing-md);
            transition: border var(--transition-fast);
        }

        .faq-item:hover {
            border-color: var(--accent-secondary);
        }

        .faq-item h4 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--accent-primary);
            margin-bottom: 6px;
        }

        .faq-item p {
            color: var(--text-secondary);
            font-size: 0.95rem;
        }

        .cta-banner {
            background: linear-gradient(135deg, var(--bg-secondary), var(--bg-card));
            border: 1px solid var(--border-glow);
            border-radius: var(--radius-lg);
            padding: var(--spacing-lg);
            text-align: left;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: var(--spacing-md);
            margin-top: var(--spacing-lg);
        }

        .cta-banner h3 {
            font-size: 1.7rem;
            font-weight: 700;
            color: var(--text-primary);
        }

        .cta-banner .btn-primary {
            padding: 14px 32px;
            background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
            border: none;
            border-radius: var(--radius-sm);
            font-weight: 700;
            font-size: 1rem;
            color: var(--bg-primary);
            box-shadow: var(--shadow-neon-green);
            cursor: pointer;
            transition: all var(--transition-fast);
        }

        .cta-banner .btn-primary:hover {
            box-shadow: 0 0 30px rgba(163,230,53,0.6);
            transform: scale(1.02);
        }

        .site-footer {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-subtle);
            padding: var(--spacing-xl) 0 var(--spacing-md);
            margin-top: var(--spacing-xl);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: var(--spacing-lg);
        }

        .footer-col h4 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--accent-primary);
            margin-bottom: var(--spacing-sm);
        }

        .footer-col p,
        .footer-col a {
            color: var(--text-secondary);
            font-size: 0.95rem;
            display: block;
            margin-bottom: 6px;
        }

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

        .footer-bottom {
            text-align: center;
            margin-top: var(--spacing-lg);
            padding-top: var(--spacing-md);
            border-top: 1px solid var(--border-subtle);
            color: var(--text-muted);
            font-size: 0.9rem;
        }

        .footer-bottom a {
            color: var(--accent-primary);
        }

        .fab-left {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: 50;
            width: 56px;
            height: 56px;
            background: rgba(7,7,13,0.8);
            backdrop-filter: blur(12px);
            border: 2px solid var(--accent-secondary);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-primary);
            font-size: 1.6rem;
            box-shadow: 0 0 20px rgba(6,182,212,0.35);
            cursor: pointer;
            transition: transform var(--transition-fast), box-shadow var(--transition-fast);
        }

        .fab-left:hover {
            transform: scale(1.1);
            box-shadow: 0 0 30px rgba(6,182,212,0.6);
        }

        @media screen and (max-width: 1024px) {
            .banner-inner h1 {
                font-size: 2.2rem;
            }
            .case-study {
                grid-template-columns: 1fr;
            }
            .timeline-strip {
                flex-wrap: wrap;
            }
            .subscribe-box {
                margin-left: 0;
                width: 100%;
            }
        }

        @media screen and (max-width: 768px) {
            .nav-primary,
            .nav-actions {
                display: none;
            }
            .mobile-menu-toggle {
                display: block;
            }
            .banner-inner {
                padding: 60px 0 40px;
            }
            .banner-inner h1 {
                font-size: 1.9rem;
            }
            .stat-row {
                flex-direction: column;
            }
        }

        @media screen and (max-width: 520px) {
            .section-title {
                font-size: 1.6rem;
            }
            .cta-banner {
                flex-direction: column;
                text-align: center;
            }
        }