/* roulang page: index */
:root {
            --bg-primary: #07070D;
            --bg-secondary: #0E0E1E;
            --bg-card: rgba(18, 20, 30, 0.7);
            --accent-cyan: #06B6D4;
            --accent-lime: #A3E635;
            --accent-pink: #F43F5E;
            --text-primary: #FFFFFF;
            --text-secondary: #94A3B8;
            --text-muted: #64748B;
            --border-glow: rgba(163, 230, 53, 0.3);
            --shadow-neon: 0 0 20px rgba(6, 182, 212, 0.45);
            --shadow-lime: 0 0 15px rgba(163, 230, 53, 0.4);
            --radius-sm: 8px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --container-max: 1280px;
            --font-sans: 'Segoe UI', system-ui, -apple-system, sans-serif;
            --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        body {
            font-family: var(--font-sans);
            background: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.6;
            min-height: 100vh;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
        }

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

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

        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            background: none;
        }

        /* 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 rgba(6, 182, 212, 0.15);
            transition: background var(--transition-fast);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 70px;
            gap: 24px;
        }

        .logo {
            font-size: 1.25rem;
            font-weight: 700;
            letter-spacing: -0.02em;
            background: linear-gradient(135deg, var(--accent-lime), var(--accent-cyan));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            white-space: nowrap;
            flex-shrink: 0;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 28px;
            list-style: none;
        }

        .nav-links a {
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            padding: 6px 0;
            position: relative;
            white-space: nowrap;
            transition: color var(--transition-fast);
        }

        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--accent-lime);
            transition: width var(--transition-fast);
        }

        .nav-links a:hover,
        .nav-links a.active {
            color: var(--text-primary);
        }
        .nav-links a:hover::after,
        .nav-links a.active::after {
            width: 100%;
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .btn-login {
            padding: 8px 20px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.85rem;
            color: var(--accent-cyan);
            border: 1.5px solid rgba(6, 182, 212, 0.5);
            transition: all var(--transition-fast);
        }
        .btn-login:hover {
            background: rgba(6, 182, 212, 0.1);
            border-color: var(--accent-cyan);
            box-shadow: 0 0 12px rgba(6, 182, 212, 0.3);
        }

        .btn-signup {
            padding: 8px 20px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 0.85rem;
            background: linear-gradient(135deg, var(--accent-lime), #65a30d);
            color: #0a0a0a;
            box-shadow: var(--shadow-lime);
            transition: all var(--transition-fast);
        }
        .btn-signup:hover {
            transform: translateY(-1px);
            box-shadow: 0 0 24px rgba(163, 230, 53, 0.6);
        }

        .mobile-toggle {
            display: none;
            font-size: 1.5rem;
            color: var(--text-primary);
            padding: 8px;
        }

        @media (max-width: 1024px) {
            .nav-links {
                gap: 16px;
            }
        }

        @media (max-width: 768px) {
            .mobile-toggle {
                display: block;
            }
            .nav-links {
                position: fixed;
                top: 70px;
                left: 0;
                right: 0;
                background: rgba(7, 7, 13, 0.95);
                backdrop-filter: blur(20px);
                flex-direction: column;
                padding: 24px;
                gap: 20px;
                border-bottom: 1px solid rgba(6, 182, 212, 0.2);
                transform: translateY(-120%);
                transition: transform 0.3s ease;
                z-index: 999;
            }
            .nav-links.open {
                transform: translateY(0);
            }
            .header-actions {
                margin-left: auto;
            }
            .header-actions .btn-login,
            .header-actions .btn-signup {
                padding: 6px 16px;
                font-size: 0.8rem;
            }
        }

        /* Hero */
        .hero-section {
            padding: 140px 0 80px;
            background: linear-gradient(180deg, rgba(6, 182, 212, 0.08) 0%, transparent 50%);
            position: relative;
            overflow: hidden;
        }
        .hero-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: url('/assets/images/backpic/back-2.jpg') center/cover no-repeat;
            opacity: 0.15;
            z-index: 0;
        }
        .hero-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 60px;
            align-items: center;
            position: relative;
            z-index: 1;
        }
        .hero-content h1 {
            font-size: clamp(2.5rem, 5vw, 3.5rem);
            font-weight: 800;
            line-height: 1.15;
            margin-bottom: 24px;
            background: linear-gradient(135deg, var(--text-primary) 40%, var(--accent-cyan));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hero-content p {
            font-size: 1.1rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 32px;
            max-width: 540px;
        }
        .hero-buttons {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }
        .btn-primary {
            padding: 14px 36px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 1rem;
            background: linear-gradient(135deg, var(--accent-cyan), #0891b2);
            color: #fff;
            box-shadow: var(--shadow-neon);
            transition: all var(--transition-fast);
        }
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 0 32px rgba(6, 182, 212, 0.7);
        }
        .btn-outline {
            padding: 14px 36px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 1rem;
            border: 2px solid rgba(255, 255, 255, 0.3);
            color: var(--text-primary);
            transition: all var(--transition-fast);
        }
        .btn-outline:hover {
            border-color: var(--accent-lime);
            color: var(--accent-lime);
            box-shadow: 0 0 12px rgba(163, 230, 53, 0.25);
        }
        .hero-visual {
            background: rgba(255, 255, 255, 0.03);
            border-radius: var(--radius-lg);
            padding: 40px;
            backdrop-filter: blur(10px);
            border: 1px solid rgba(6, 182, 212, 0.2);
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        .hero-visual img {
            border-radius: var(--radius-md);
            box-shadow: 0 8px 32px rgba(0,0,0,0.4);
        }
        .hero-stats {
            display: flex;
            gap: 28px;
            justify-content: center;
        }
        .hero-stat {
            text-align: center;
        }
        .hero-stat .stat-value {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--accent-lime);
        }
        .hero-stat .stat-label {
            font-size: 0.8rem;
            color: var(--text-secondary);
            margin-top: 4px;
        }

        @media (max-width: 768px) {
            .hero-grid {
                grid-template-columns: 1fr;
                gap: 40px;
            }
            .hero-section {
                padding: 110px 0 50px;
            }
            .hero-visual {
                padding: 20px;
            }
            .hero-stats {
                gap: 16px;
            }
        }

        /* Sections General */
        .section {
            padding: 70px 0;
        }
        .section-dark {
            background: var(--bg-secondary);
        }
        .section-title {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--text-primary);
        }
        .section-subtitle {
            font-size: 1rem;
            color: var(--text-secondary);
            margin-bottom: 40px;
            max-width: 600px;
        }
        .text-accent {
            color: var(--accent-cyan);
        }

        /* Safety Proposition */
        .safety-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .safety-card {
            background: var(--bg-card);
            backdrop-filter: blur(10px);
            border: 1px solid rgba(6, 182, 212, 0.15);
            border-radius: var(--radius-md);
            padding: 32px 24px;
            text-align: left;
            transition: all var(--transition-fast);
        }
        .safety-card:hover {
            border-color: var(--accent-cyan);
            box-shadow: 0 12px 40px rgba(6, 182, 212, 0.15);
            transform: translateY(-4px);
        }
        .safety-icon {
            font-size: 2rem;
            color: var(--accent-cyan);
            margin-bottom: 16px;
        }
        .safety-card h3 {
            font-size: 1.15rem;
            margin-bottom: 10px;
            font-weight: 700;
        }
        .safety-card p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.65;
        }

        /* Inspection Checklist */
        .checklist-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: start;
        }
        .checklist-visual {
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid rgba(6, 182, 212, 0.2);
        }
        .checklist-visual img {
            width: 100%;
            height: auto;
        }
        .checklist-items {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        .checklist-items li {
            display: flex;
            gap: 14px;
            align-items: flex-start;
        }
        .check-icon {
            background: rgba(6, 182, 212, 0.15);
            width: 36px;
            height: 36px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-cyan);
            flex-shrink: 0;
            font-size: 1rem;
        }
        .check-content strong {
            display: block;
            font-size: 0.95rem;
            margin-bottom: 4px;
        }
        .check-content span {
            font-size: 0.85rem;
            color: var(--text-secondary);
        }

        /* Compliance Badges */
        .badge-row {
            display: flex;
            flex-wrap: wrap;
            gap: 24px;
            justify-content: center;
            align-items: center;
            padding: 32px 0;
        }
        .badge-item {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 50px;
            padding: 10px 24px;
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--text-secondary);
            transition: all var(--transition-fast);
        }
        .badge-item i {
            color: var(--accent-lime);
        }
        .badge-item:hover {
            border-color: var(--accent-cyan);
            color: var(--text-primary);
        }

        /* Boundary / Notice */
        .boundary-box {
            background: rgba(244, 63, 94, 0.08);
            border-left: 4px solid var(--accent-pink);
            padding: 24px 28px;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            margin-top: 24px;
        }
        .boundary-box p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            margin: 0;
        }

        /* Latest News */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .news-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid rgba(6, 182, 212, 0.1);
            transition: all var(--transition-fast);
        }
        .news-card:hover {
            border-color: var(--accent-cyan);
            box-shadow: 0 8px 28px rgba(6, 182, 212, 0.1);
            transform: translateY(-4px);
        }
        .news-card-img {
            height: 180px;
            background: #1a1a2e;
            overflow: hidden;
        }
        .news-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .news-card-body {
            padding: 20px;
        }
        .news-card-body h3 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .news-card-body p {
            font-size: 0.85rem;
            color: var(--text-secondary);
            margin-bottom: 12px;
            line-height: 1.5;
        }
        .news-meta {
            font-size: 0.75rem;
            color: var(--text-muted);
            display: flex;
            justify-content: space-between;
        }

        /* Trust Endorsement */
        .trust-row {
            display: flex;
            gap: 32px;
            justify-content: center;
            flex-wrap: wrap;
            text-align: center;
        }
        .trust-item {
            flex: 1 1 200px;
            max-width: 240px;
            padding: 24px;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px solid rgba(6, 182, 212, 0.1);
        }
        .trust-item .trust-num {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--accent-lime);
        }
        .trust-item p {
            font-size: 0.85rem;
            color: var(--text-secondary);
            margin-top: 6px;
        }

        /* FAQ */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .faq-item {
            background: var(--bg-card);
            border: 1px solid rgba(6, 182, 212, 0.1);
            border-radius: var(--radius-sm);
            overflow: hidden;
            transition: all var(--transition-fast);
        }
        .faq-item:hover {
            border-color: var(--accent-cyan);
        }
        .faq-question {
            padding: 18px 24px;
            font-weight: 700;
            font-size: 0.95rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            background: none;
            width: 100%;
            text-align: left;
            color: var(--text-primary);
        }
        .faq-answer {
            padding: 0 24px 18px;
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.65;
            display: none;
        }
        .faq-item.open .faq-answer {
            display: block;
        }

        /* Footer */
        .site-footer {
            background: var(--bg-secondary);
            border-top: 1px solid rgba(6, 182, 212, 0.15);
            padding: 48px 0 24px;
            font-size: 0.85rem;
            color: var(--text-secondary);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }
        .footer-col h4 {
            color: var(--text-primary);
            font-weight: 700;
            margin-bottom: 16px;
            font-size: 0.95rem;
        }
        .footer-col ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .footer-col a {
            color: var(--text-secondary);
            transition: color var(--transition-fast);
        }
        .footer-col a:hover {
            color: var(--accent-cyan);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 20px;
            text-align: center;
            font-size: 0.8rem;
            color: var(--text-muted);
        }
        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .safety-grid, .news-grid {
                grid-template-columns: 1fr;
            }
            .checklist-grid {
                grid-template-columns: 1fr;
            }
        }

        /* FAB */
        .fab-left {
            position: fixed;
            left: 24px;
            bottom: 96px;
            z-index: 999;
            width: 56px;
            height: 56px;
            border-radius: 28px;
            background: rgba(7, 7, 13, 0.75);
            backdrop-filter: blur(14px);
            border: 1.5px solid transparent;
            background-clip: padding-box;
            display: flex;
            align-items: center;
            justify-content: center;
            animation: floatFab 3s infinite ease-in-out;
            box-shadow: 0 0 20px rgba(6, 182, 212, 0.45);
            transition: all var(--transition-fast);
            color: var(--accent-cyan);
            font-size: 1.4rem;
        }
        .fab-left::before {
            content: '';
            position: absolute;
            inset: -2px;
            border-radius: 30px;
            padding: 2px;
            background: linear-gradient(135deg, var(--accent-lime), var(--accent-cyan));
            -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
            mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
            -webkit-mask-composite: xor;
            mask-composite: exclude;
        }
        .fab-left:hover {
            transform: scale(1.1);
            box-shadow: 0 0 28px rgba(6, 182, 212, 0.7);
        }
        @keyframes floatFab {
            0%, 100% { transform: translateY(0); }
            50% { transform: translateY(-6px); }
        }

/* roulang page: article */
:root {
            --bg-primary: #07070D;
            --bg-secondary: #0E0E1E;
            --bg-card: rgba(18, 20, 30, 0.7);
            --accent-cyan: #06B6D4;
            --accent-lime: #A3E635;
            --accent-pink: #F43F5E;
            --text-primary: #FFFFFF;
            --text-secondary: #94A3B8;
            --text-muted: #64748B;
            --border-glow: rgba(163, 230, 53, 0.3);
            --shadow-neon: 0 0 20px rgba(6, 182, 212, 0.45);
            --shadow-lime: 0 0 15px rgba(163, 230, 53, 0.4);
            --radius-sm: 8px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --container-max: 1280px;
            --font-sans: 'Segoe UI', system-ui, -apple-system, sans-serif;
            --transition-fast: 0.2s 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: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.6;
            min-height: 100vh;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
        }

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

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

        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            background: none;
        }

        /* 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 rgba(6, 182, 212, 0.15);
            transition: background var(--transition-fast);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 70px;
            gap: 24px;
        }

        .logo {
            font-size: 1.25rem;
            font-weight: 700;
            letter-spacing: -0.02em;
            background: linear-gradient(135deg, var(--accent-lime), var(--accent-cyan));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            white-space: nowrap;
            flex-shrink: 0;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 28px;
            list-style: none;
        }

        .nav-links a {
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            padding: 6px 0;
            position: relative;
            white-space: nowrap;
            transition: color var(--transition-fast);
        }

        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--accent-lime);
            transition: width var(--transition-fast);
        }

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

        .nav-links a:hover::after,
        .nav-links a.active::after {
            width: 100%;
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .btn-login {
            padding: 8px 20px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.85rem;
            color: var(--accent-cyan);
            border: 1.5px solid rgba(6, 182, 212, 0.5);
            transition: all var(--transition-fast);
        }

        .btn-login:hover {
            background: rgba(6, 182, 212, 0.1);
            border-color: var(--accent-cyan);
            box-shadow: 0 0 12px rgba(6, 182, 212, 0.3);
        }

        .btn-signup {
            padding: 8px 20px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 0.85rem;
            background: linear-gradient(135deg, var(--accent-lime), #65a30d);
            color: #0a0a0a;
            box-shadow: var(--shadow-lime);
            transition: all var(--transition-fast);
        }

        .btn-signup:hover {
            transform: translateY(-1px);
            box-shadow: 0 0 24px rgba(163, 230, 53, 0.6);
        }

        .mobile-toggle {
            display: none;
            font-size: 1.5rem;
            color: var(--text-primary);
            padding: 8px;
        }

        /* Article Page Specific */
        .article-page {
            padding-top: 70px;
            min-height: 100vh;
        }

        .article-hero {
            padding: 80px 0 40px;
            background: linear-gradient(180deg, rgba(6, 182, 212, 0.1) 0%, transparent 60%);
            position: relative;
        }

        .article-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-3.jpg') center/cover no-repeat;
            opacity: 0.08;
            pointer-events: none;
        }

        .article-hero-content {
            position: relative;
            z-index: 1;
        }

        .article-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
            margin-bottom: 16px;
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        .article-meta .category-tag {
            background: rgba(6, 182, 212, 0.15);
            color: var(--accent-cyan);
            padding: 4px 14px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.8rem;
            border: 1px solid rgba(6, 182, 212, 0.3);
        }

        .article-meta .date {
            color: var(--text-secondary);
        }

        .article-h1 {
            font-size: 2.5rem;
            font-weight: 800;
            line-height: 1.25;
            margin-bottom: 20px;
            background: linear-gradient(135deg, var(--text-primary), var(--accent-cyan));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            max-width: 900px;
        }

        .article-summary {
            font-size: 1.1rem;
            color: var(--text-secondary);
            line-height: 1.7;
            max-width: 800px;
            margin-bottom: 20px;
        }

        .article-banner-img {
            width: 100%;
            max-height: 480px;
            object-fit: cover;
            border-radius: var(--radius-lg);
            margin: 24px 0;
            border: 1px solid rgba(6, 182, 212, 0.2);
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5);
        }

        /* Article Body */
        .article-body-section {
            padding: 20px 0 60px;
        }

        .article-content-wrapper {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 48px;
            align-items: start;
        }

        .article-main-content {
            font-size: 1.05rem;
            line-height: 1.8;
            color: var(--text-primary);
        }

        .article-main-content h2 {
            font-size: 1.75rem;
            font-weight: 700;
            margin: 32px 0 16px;
            color: var(--accent-lime);
            line-height: 1.3;
        }

        .article-main-content h3 {
            font-size: 1.35rem;
            font-weight: 600;
            margin: 24px 0 12px;
            color: var(--accent-cyan);
            line-height: 1.3;
        }

        .article-main-content p {
            margin-bottom: 16px;
            color: var(--text-secondary);
        }

        .article-main-content ul,
        .article-main-content ol {
            margin: 12px 0 20px 24px;
            color: var(--text-secondary);
        }

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

        .article-main-content strong {
            color: var(--text-primary);
            font-weight: 600;
        }

        .article-main-content a {
            color: var(--accent-cyan);
            text-decoration: underline;
            text-underline-offset: 3px;
        }

        .article-main-content a:hover {
            color: var(--accent-lime);
        }

        .article-main-content img {
            border-radius: var(--radius-md);
            margin: 20px 0;
            border: 1px solid rgba(6, 182, 212, 0.15);
        }

        .article-main-content blockquote {
            border-left: 4px solid var(--accent-cyan);
            padding: 16px 24px;
            margin: 24px 0;
            background: rgba(6, 182, 212, 0.05);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--text-secondary);
            font-style: italic;
        }

        /* Sidebar */
        .article-sidebar {
            position: sticky;
            top: 90px;
        }

        .sidebar-card {
            background: var(--bg-card);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid rgba(6, 182, 212, 0.2);
            border-radius: var(--radius-md);
            padding: 24px;
            margin-bottom: 24px;
        }

        .sidebar-card h4 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 16px;
            color: var(--accent-lime);
            border-bottom: 1px solid rgba(6, 182, 212, 0.2);
            padding-bottom: 10px;
        }

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

        .sidebar-card ul li {
            margin-bottom: 12px;
        }

        .sidebar-card ul li a {
            color: var(--text-secondary);
            font-size: 0.9rem;
            transition: color var(--transition-fast);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .sidebar-card ul li a:hover {
            color: var(--accent-cyan);
        }

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

        .sidebar-cta {
            background: linear-gradient(135deg, rgba(6, 182, 212, 0.15), rgba(163, 230, 53, 0.1));
            border: 1px solid var(--border-glow);
            border-radius: var(--radius-md);
            padding: 24px;
            text-align: center;
        }

        .sidebar-cta h4 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--accent-lime);
            margin-bottom: 8px;
        }

        .sidebar-cta p {
            font-size: 0.85rem;
            color: var(--text-secondary);
            margin-bottom: 16px;
        }

        .btn-sidebar-cta {
            display: block;
            width: 100%;
            padding: 12px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 0.9rem;
            background: linear-gradient(135deg, var(--accent-lime), #65a30d);
            color: #0a0a0a;
            box-shadow: var(--shadow-lime);
            transition: all var(--transition-fast);
            text-align: center;
        }

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

        /* Related Articles */
        .related-articles {
            padding: 60px 0;
            background: var(--bg-secondary);
            border-top: 1px solid rgba(6, 182, 212, 0.1);
            border-bottom: 1px solid rgba(6, 182, 212, 0.1);
            margin-top: 20px;
        }

        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            margin-top: 32px;
        }

        .related-card {
            background: var(--bg-card);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid rgba(6, 182, 212, 0.15);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition-fast);
        }

        .related-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-neon);
            border-color: var(--accent-cyan);
        }

        .related-card img {
            width: 100%;
            height: 180px;
            object-fit: cover;
        }

        .related-card-body {
            padding: 16px;
        }

        .related-card-body h4 {
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 8px;
            line-height: 1.4;
        }

        .related-card-body h4 a {
            color: var(--text-primary);
            transition: color var(--transition-fast);
        }

        .related-card-body h4 a:hover {
            color: var(--accent-cyan);
        }

        .related-card-body .meta {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        /* Not Found State */
        .not-found-section {
            text-align: center;
            padding: 100px 20px;
        }

        .not-found-section .not-found-icon {
            font-size: 4rem;
            color: var(--accent-cyan);
            margin-bottom: 24px;
        }

        .not-found-section h2 {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 12px;
        }

        .not-found-section p {
            color: var(--text-secondary);
            margin-bottom: 24px;
        }

        .btn-back-home {
            display: inline-block;
            padding: 12px 32px;
            border-radius: 50px;
            font-weight: 700;
            background: linear-gradient(135deg, var(--accent-lime), #65a30d);
            color: #0a0a0a;
            box-shadow: var(--shadow-lime);
            transition: all var(--transition-fast);
        }

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

        /* CTA Section */
        .cta-section {
            padding: 80px 0;
            background: linear-gradient(180deg, transparent 0%, rgba(6, 182, 212, 0.08) 100%);
            text-align: center;
        }

        .cta-section h2 {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 16px;
            background: linear-gradient(135deg, var(--text-primary), var(--accent-cyan));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .cta-section p {
            color: var(--text-secondary);
            margin-bottom: 32px;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }

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

        .btn-primary-glow {
            padding: 14px 36px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 1rem;
            background: linear-gradient(135deg, var(--accent-lime), #65a30d);
            color: #0a0a0a;
            box-shadow: var(--shadow-lime);
            transition: all var(--transition-fast);
        }

        .btn-primary-glow:hover {
            transform: translateY(-2px);
            box-shadow: 0 0 32px rgba(163, 230, 53, 0.6);
        }

        .btn-secondary-glow {
            padding: 14px 36px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 1rem;
            color: var(--accent-cyan);
            border: 2px solid rgba(6, 182, 212, 0.5);
            transition: all var(--transition-fast);
        }

        .btn-secondary-glow:hover {
            background: rgba(6, 182, 212, 0.1);
            box-shadow: 0 0 20px rgba(6, 182, 212, 0.4);
            border-color: var(--accent-cyan);
        }

        /* Footer */
        .site-footer {
            background: var(--bg-secondary);
            border-top: 1px solid rgba(6, 182, 212, 0.15);
            padding: 60px 0 30px;
        }

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

        .footer-col h4 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 16px;
            color: var(--accent-cyan);
        }

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

        .footer-col ul li {
            margin-bottom: 10px;
        }

        .footer-col ul li a {
            font-size: 0.9rem;
            color: var(--text-muted);
            transition: color var(--transition-fast);
        }

        .footer-col ul li a:hover {
            color: var(--accent-lime);
        }

        .footer-bottom {
            text-align: center;
            margin-top: 40px;
            padding-top: 24px;
            border-top: 1px solid rgba(6, 182, 212, 0.1);
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        /* FAB */
        .fab {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: 50;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent-lime), var(--accent-cyan));
            color: #0a0a0a;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            box-shadow: 0 0 24px rgba(6, 182, 212, 0.5);
            cursor: pointer;
            transition: all var(--transition-fast);
            animation: fabFloat 3s ease-in-out infinite;
        }

        .fab:hover {
            transform: scale(1.1);
            box-shadow: 0 0 36px rgba(6, 182, 212, 0.7);
        }

        @keyframes fabFloat {
            0%,
            100% {
                transform: translateY(0);
            }
            50% {
                transform: translateY(-8px);
            }
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .article-content-wrapper {
                grid-template-columns: 1fr;
                gap: 32px;
            }

            .article-sidebar {
                position: static;
                display: grid;
                grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
                gap: 20px;
            }

            .sidebar-card,
            .sidebar-cta {
                margin-bottom: 0;
            }

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

            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 32px;
            }

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

        @media (max-width: 768px) {
            .nav-links {
                gap: 16px;
            }

            .mobile-toggle {
                display: block;
            }

            .nav-links {
                position: fixed;
                top: 70px;
                left: 0;
                right: 0;
                background: rgba(7, 7, 13, 0.95);
                backdrop-filter: blur(20px);
                flex-direction: column;
                padding: 24px;
                gap: 20px;
                border-bottom: 1px solid rgba(6, 182, 212, 0.2);
                transform: translateY(-120%);
                transition: transform 0.3s ease;
                z-index: 999;
            }

            .nav-links.open {
                transform: translateY(0);
            }

            .header-actions {
                margin-left: auto;
            }

            .header-actions .btn-login,
            .header-actions .btn-signup {
                padding: 6px 16px;
                font-size: 0.8rem;
            }

            .article-h1 {
                font-size: 1.75rem;
            }

            .article-banner-img {
                max-height: 250px;
            }

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

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

            .article-hero {
                padding: 60px 0 30px;
            }

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

        @media (max-width: 520px) {
            .header-actions .btn-login,
            .header-actions .btn-signup {
                padding: 5px 12px;
                font-size: 0.75rem;
            }

            .logo {
                font-size: 1rem;
            }

            .article-h1 {
                font-size: 1.5rem;
            }

            .article-meta {
                font-size: 0.8rem;
            }

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

            .cta-buttons {
                flex-direction: column;
                align-items: center;
            }
        }

/* roulang page: category1 */
:root {
            --bg-primary: #07070D;
            --bg-secondary: #0E0E1E;
            --bg-card: rgba(18, 20, 30, 0.7);
            --accent-cyan: #06B6D4;
            --accent-lime: #A3E635;
            --accent-pink: #F43F5E;
            --text-primary: #FFFFFF;
            --text-secondary: #94A3B8;
            --text-muted: #64748B;
            --border-glow: rgba(163, 230, 53, 0.3);
            --shadow-neon: 0 0 20px rgba(6, 182, 212, 0.45);
            --shadow-lime: 0 0 15px rgba(163, 230, 53, 0.4);
            --radius-sm: 8px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --container-max: 1280px;
            --font-sans: 'Segoe UI', system-ui, -apple-system, sans-serif;
            --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        body {
            font-family: var(--font-sans);
            background: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.6;
            min-height: 100vh;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
        }

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

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

        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            background: none;
        }

        /* Header */
        .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 rgba(6, 182, 212, 0.15);
            transition: background var(--transition-fast);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 70px;
            gap: 24px;
        }

        .logo {
            font-size: 1.25rem;
            font-weight: 700;
            letter-spacing: -0.02em;
            background: linear-gradient(135deg, var(--accent-lime), var(--accent-cyan));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            white-space: nowrap;
            flex-shrink: 0;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 28px;
            list-style: none;
        }

        .nav-links a {
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            padding: 6px 0;
            position: relative;
            white-space: nowrap;
            transition: color var(--transition-fast);
        }

        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--accent-lime);
            transition: width var(--transition-fast);
        }

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

        .nav-links a:hover::after,
        .nav-links a.active::after {
            width: 100%;
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .btn-login {
            padding: 8px 20px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.85rem;
            color: var(--accent-cyan);
            border: 1.5px solid rgba(6, 182, 212, 0.5);
            transition: all var(--transition-fast);
        }

        .btn-login:hover {
            background: rgba(6, 182, 212, 0.1);
            border-color: var(--accent-cyan);
            box-shadow: 0 0 12px rgba(6, 182, 212, 0.3);
        }

        .btn-signup {
            padding: 8px 20px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 0.85rem;
            background: linear-gradient(135deg, var(--accent-lime), #65a30d);
            color: #0a0a0a;
            box-shadow: var(--shadow-lime);
            transition: all var(--transition-fast);
        }

        .btn-signup:hover {
            transform: translateY(-1px);
            box-shadow: 0 0 24px rgba(163, 230, 53, 0.6);
        }

        .mobile-toggle {
            display: none;
            font-size: 1.5rem;
            color: var(--text-primary);
            padding: 8px;
        }

        /* Page Banner */
        .page-banner {
            padding: 140px 0 60px;
            background: linear-gradient(180deg, rgba(6, 182, 212, 0.08) 0%, transparent 60%);
            position: relative;
            overflow: hidden;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            top: 0; left: 0; right: 0; bottom: 0;
            background: url('/assets/images/backpic/back-6.jpg') center/cover no-repeat;
            opacity: 0.12;
            pointer-events: none;
        }
        .page-banner .container {
            position: relative;
            z-index: 1;
        }
        .page-banner h1 {
            font-size: clamp(1.8rem, 4vw, 2.8rem);
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 16px;
            background: linear-gradient(135deg, #fff, var(--accent-cyan));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .page-banner p {
            font-size: 1.1rem;
            color: var(--text-secondary);
            max-width: 700px;
            line-height: 1.7;
        }

        /* Sections */
        .section {
            padding: 70px 0;
        }
        .section-sm {
            padding: 50px 0;
        }
        .section-dark {
            background: var(--bg-secondary);
        }

        .section-title {
            font-size: 1.8rem;
            font-weight: 700;
            margin-bottom: 12px;
            letter-spacing: -0.01em;
        }
        .section-subtitle {
            font-size: 1rem;
            color: var(--text-secondary);
            margin-bottom: 40px;
        }

        /* Strategy Cards Grid */
        .strategy-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 24px;
        }

        .strategy-card {
            background: var(--bg-card);
            backdrop-filter: blur(10px);
            border: 1px solid rgba(6, 182, 212, 0.15);
            border-radius: var(--radius-md);
            padding: 28px;
            transition: all var(--transition-fast);
            position: relative;
            overflow: hidden;
        }
        .strategy-card::before {
            content: '';
            position: absolute;
            top: 0; left: 0; right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--accent-cyan), var(--accent-lime));
            transform: scaleX(0);
            transform-origin: left;
            transition: transform 0.4s ease;
        }
        .strategy-card:hover::before {
            transform: scaleX(1);
        }
        .strategy-card:hover {
            border-color: rgba(6, 182, 212, 0.4);
            transform: translateY(-4px);
            box-shadow: var(--shadow-neon);
        }
        .strategy-card .card-icon {
            width: 48px;
            height: 48px;
            border-radius: var(--radius-sm);
            background: rgba(6, 182, 212, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            color: var(--accent-cyan);
            margin-bottom: 16px;
        }
        .strategy-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .strategy-card p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.65;
        }
        .strategy-card .card-tag {
            display: inline-block;
            margin-top: 12px;
            font-size: 0.75rem;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.03em;
            color: var(--accent-lime);
            background: rgba(163, 230, 53, 0.08);
            padding: 4px 10px;
            border-radius: 50px;
        }

        /* Steps / Timeline */
        .steps-flow {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            counter-reset: step;
        }
        .step-item {
            flex: 1 1 220px;
            background: var(--bg-card);
            backdrop-filter: blur(10px);
            border: 1px solid rgba(163, 230, 53, 0.2);
            border-radius: var(--radius-md);
            padding: 28px 20px;
            position: relative;
            transition: all var(--transition-fast);
        }
        .step-item:hover {
            border-color: var(--accent-lime);
            box-shadow: var(--shadow-lime);
        }
        .step-item::before {
            counter-increment: step;
            content: "0" counter(step);
            position: absolute;
            top: 16px; right: 20px;
            font-size: 2.5rem;
            font-weight: 800;
            color: rgba(163, 230, 53, 0.12);
            line-height: 1;
        }
        .step-item h4 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .step-item p {
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        /* Data Stats Row */
        .stats-row {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 24px;
            text-align: center;
        }
        .stat-block {
            background: var(--bg-card);
            backdrop-filter: blur(10px);
            border: 1px solid rgba(6, 182, 212, 0.2);
            border-radius: var(--radius-md);
            padding: 28px 16px;
        }
        .stat-value {
            font-size: 2rem;
            font-weight: 800;
            background: linear-gradient(135deg, var(--accent-lime), var(--accent-cyan));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .stat-label {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-top: 4px;
        }

        /* Article List */
        .article-list {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 24px;
        }
        .article-item {
            background: var(--bg-card);
            backdrop-filter: blur(10px);
            border: 1px solid rgba(6, 182, 212, 0.12);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition-fast);
            display: flex;
            flex-direction: column;
        }
        .article-item:hover {
            border-color: rgba(6, 182, 212, 0.4);
            box-shadow: var(--shadow-neon);
            transform: translateY(-3px);
        }
        .article-item img {
            width: 100%;
            height: 180px;
            object-fit: cover;
        }
        .article-body {
            padding: 18px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .article-body .art-cat {
            font-size: 0.72rem;
            font-weight: 600;
            text-transform: uppercase;
            color: var(--accent-lime);
            letter-spacing: 0.04em;
            margin-bottom: 6px;
        }
        .article-body h3 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 6px;
            line-height: 1.35;
        }
        .article-body p {
            font-size: 0.85rem;
            color: var(--text-secondary);
            line-height: 1.55;
            flex: 1;
        }
        .article-body .art-meta {
            font-size: 0.75rem;
            color: var(--text-muted);
            margin-top: 10px;
        }

        /* CTA Strip */
        .cta-strip {
            background: linear-gradient(135deg, rgba(6, 182, 212, 0.1), rgba(163, 230, 53, 0.08));
            border: 1px solid rgba(6, 182, 212, 0.3);
            border-radius: var(--radius-lg);
            padding: 44px 32px;
            text-align: center;
        }
        .cta-strip h2 {
            font-size: 1.6rem;
            font-weight: 700;
            margin-bottom: 12px;
        }
        .cta-strip p {
            font-size: 0.95rem;
            color: var(--text-secondary);
            max-width: 600px;
            margin: 0 auto 24px;
        }
        .btn-cta-glow {
            display: inline-block;
            padding: 12px 32px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 0.95rem;
            background: linear-gradient(135deg, var(--accent-lime), #65a30d);
            color: #0a0a0a;
            box-shadow: var(--shadow-lime);
            transition: all var(--transition-fast);
        }
        .btn-cta-glow:hover {
            transform: translateY(-2px);
            box-shadow: 0 0 30px rgba(163, 230, 53, 0.7);
        }

        /* Footer */
        .site-footer {
            background: var(--bg-secondary);
            border-top: 1px solid rgba(6, 182, 212, 0.2);
            padding: 50px 0 24px;
            color: var(--text-secondary);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 32px;
            margin-bottom: 32px;
        }
        .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 12px;
        }
        .footer-col ul {
            list-style: none;
        }
        .footer-col ul li {
            margin-bottom: 6px;
        }
        .footer-col ul li a {
            font-size: 0.85rem;
            color: var(--text-muted);
            transition: color var(--transition-fast);
        }
        .footer-col ul li a:hover {
            color: var(--accent-lime);
        }
        .footer-bottom {
            text-align: center;
            font-size: 0.8rem;
            color: var(--text-muted);
            padding-top: 20px;
            border-top: 1px solid rgba(6, 182, 212, 0.1);
        }

        /* FAB */
        .fab-floating {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: 50;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: rgba(7, 7, 13, 0.75);
            backdrop-filter: blur(12px);
            border: 2px solid transparent;
            background-clip: padding-box;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            color: var(--accent-cyan);
            box-shadow: var(--shadow-neon);
            transition: all var(--transition-fast);
            cursor: pointer;
        }
        .fab-floating::before {
            content: '';
            position: absolute;
            inset: -2px;
            border-radius: 50%;
            padding: 2px;
            background: linear-gradient(135deg, var(--accent-lime), var(--accent-cyan));
            -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
            mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
            -webkit-mask-composite: xor;
            mask-composite: exclude;
        }
        .fab-floating:hover {
            transform: scale(1.1);
            box-shadow: 0 0 30px rgba(6, 182, 212, 0.7);
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .nav-links { gap: 16px; }
        }
        @media (max-width: 768px) {
            .mobile-toggle { display: block; }
            .nav-links {
                position: fixed;
                top: 70px;
                left: 0;
                right: 0;
                background: rgba(7, 7, 13, 0.95);
                backdrop-filter: blur(20px);
                flex-direction: column;
                padding: 24px;
                gap: 20px;
                border-bottom: 1px solid rgba(6, 182, 212, 0.2);
                transform: translateY(-120%);
                transition: transform 0.3s ease;
                z-index: 999;
            }
            .nav-links.open { transform: translateY(0); }
            .header-actions { margin-left: auto; }
            .header-actions .btn-login,
            .header-actions .btn-signup { padding: 6px 16px; font-size: 0.8rem; }
            .page-banner { padding: 120px 0 40px; }
            .strategy-grid { grid-template-columns: 1fr; }
        }

/* roulang page: category2 */
:root {
            --bg-primary: #07070D;
            --bg-secondary: #0E0E1E;
            --bg-card: rgba(18, 20, 30, 0.7);
            --accent-cyan: #06B6D4;
            --accent-lime: #A3E635;
            --accent-pink: #F43F5E;
            --text-primary: #FFFFFF;
            --text-secondary: #94A3B8;
            --text-muted: #64748B;
            --border-glow: rgba(163, 230, 53, 0.3);
            --shadow-neon: 0 0 20px rgba(6, 182, 212, 0.45);
            --shadow-lime: 0 0 15px rgba(163, 230, 53, 0.4);
            --radius-sm: 8px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --container-max: 1280px;
            --font-sans: 'Segoe UI', system-ui, -apple-system, sans-serif;
            --transition-fast: 0.2s 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: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.6;
            min-height: 100vh;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
        }

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

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

        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            background: none;
        }

        .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 rgba(6, 182, 212, 0.15);
            transition: background var(--transition-fast);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 70px;
            gap: 24px;
        }

        .logo {
            font-size: 1.25rem;
            font-weight: 700;
            letter-spacing: -0.02em;
            background: linear-gradient(135deg, var(--accent-lime), var(--accent-cyan));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            white-space: nowrap;
            flex-shrink: 0;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 28px;
            list-style: none;
        }

        .nav-links a {
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            padding: 6px 0;
            position: relative;
            white-space: nowrap;
            transition: color var(--transition-fast);
        }

        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--accent-lime);
            transition: width var(--transition-fast);
        }

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

        .nav-links a:hover::after,
        .nav-links a.active::after {
            width: 100%;
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .btn-login {
            padding: 8px 20px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.85rem;
            color: var(--accent-cyan);
            border: 1.5px solid rgba(6, 182, 212, 0.5);
            transition: all var(--transition-fast);
        }

        .btn-login:hover {
            background: rgba(6, 182, 212, 0.1);
            border-color: var(--accent-cyan);
            box-shadow: 0 0 12px rgba(6, 182, 212, 0.3);
        }

        .btn-signup {
            padding: 8px 20px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 0.85rem;
            background: linear-gradient(135deg, var(--accent-lime), #65a30d);
            color: #0a0a0a;
            box-shadow: var(--shadow-lime);
            transition: all var(--transition-fast);
        }

        .btn-signup:hover {
            transform: translateY(-1px);
            box-shadow: 0 0 24px rgba(163, 230, 53, 0.6);
        }

        .mobile-toggle {
            display: none;
            font-size: 1.5rem;
            color: var(--text-primary);
            padding: 8px;
        }

        @media (max-width: 768px) {
            .nav-links { gap: 16px; }
            .mobile-toggle { display: block; }
            .nav-links {
                position: fixed;
                top: 70px;
                left: 0;
                right: 0;
                background: rgba(7, 7, 13, 0.95);
                backdrop-filter: blur(20px);
                flex-direction: column;
                padding: 24px;
                gap: 20px;
                border-bottom: 1px solid rgba(6, 182, 212, 0.2);
                transform: translateY(-120%);
                transition: transform 0.3s ease;
                z-index: 999;
            }
            .nav-links.open { transform: translateY(0); }
            .header-actions { margin-left: auto; }
            .header-actions .btn-login,
            .header-actions .btn-signup {
                padding: 6px 16px;
                font-size: 0.8rem;
            }
        }

        .hero-section {
            padding: 140px 0 80px;
            background: linear-gradient(180deg, rgba(163, 230, 53, 0.05) 0%, transparent 50%);
            position: relative;
            overflow: hidden;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: url('/assets/images/backpic/back-4.jpg') center/cover no-repeat;
            opacity: 0.12;
            z-index: 0;
        }

        .hero-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 60px;
            align-items: center;
            position: relative;
            z-index: 1;
        }

        .hero-text h1 {
            font-size: 3rem;
            font-weight: 800;
            line-height: 1.2;
            letter-spacing: -0.03em;
            margin-bottom: 20px;
            background: linear-gradient(135deg, var(--text-primary) 30%, var(--accent-lime) 90%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero-text .hero-sub {
            font-size: 1.1rem;
            color: var(--text-secondary);
            margin-bottom: 32px;
            line-height: 1.7;
        }

        .hero-search-wrap {
            display: flex;
            gap: 12px;
            max-width: 520px;
        }

        .hero-search-input {
            flex: 1;
            padding: 14px 20px;
            border-radius: 50px;
            background: rgba(255, 255, 255, 0.06);
            border: 1.5px solid rgba(255, 255, 255, 0.1);
            color: var(--text-primary);
            font-size: 0.95rem;
            outline: none;
            transition: all var(--transition-fast);
        }

        .hero-search-input:focus {
            border-color: var(--accent-lime);
            box-shadow: 0 0 20px rgba(163, 230, 53, 0.2);
        }

        .hero-search-btn {
            padding: 14px 28px;
            border-radius: 50px;
            background: linear-gradient(135deg, var(--accent-lime), #65a30d);
            color: #0a0a0a;
            font-weight: 700;
            font-size: 0.95rem;
            box-shadow: var(--shadow-lime);
            transition: all var(--transition-fast);
        }

        .hero-search-btn:hover {
            box-shadow: 0 0 28px rgba(163, 230, 53, 0.7);
            transform: translateY(-1px);
        }

        .hot-chips {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 24px;
        }

        .hot-chip {
            padding: 8px 18px;
            border-radius: 50px;
            background: rgba(163, 230, 53, 0.08);
            border: 1px solid rgba(163, 230, 53, 0.25);
            font-size: 0.85rem;
            font-weight: 500;
            color: var(--accent-lime);
            transition: all var(--transition-fast);
            cursor: pointer;
        }

        .hot-chip:hover {
            background: rgba(163, 230, 53, 0.18);
            border-color: var(--accent-lime);
            box-shadow: 0 0 12px rgba(163, 230, 53, 0.3);
        }

        .hero-image img {
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-neon);
            border: 1px solid rgba(6, 182, 212, 0.2);
        }

        @media (max-width: 900px) {
            .hero-grid { grid-template-columns: 1fr; gap: 40px; }
            .hero-text h1 { font-size: 2.2rem; }
            .hero-image { order: -1; }
        }

        .metrics-strip {
            padding: 60px 0;
            background: var(--bg-secondary);
            border-top: 1px solid rgba(6, 182, 212, 0.1);
            border-bottom: 1px solid rgba(6, 182, 212, 0.1);
        }

        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 40px;
            text-align: center;
        }

        .metric-item .metric-number {
            font-size: 2.8rem;
            font-weight: 800;
            background: linear-gradient(135deg, var(--accent-lime), var(--accent-cyan));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            line-height: 1;
        }

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

        @media (max-width: 768px) {
            .metrics-grid { grid-template-columns: 1fr 1fr; gap: 30px; }
            .metric-item .metric-number { font-size: 2.2rem; }
        }

        .section-pad {
            padding: 80px 0;
        }

        .section-header {
            margin-bottom: 50px;
        }

        .section-label {
            display: inline-block;
            padding: 6px 16px;
            border-radius: 50px;
            background: rgba(6, 182, 212, 0.1);
            border: 1px solid rgba(6, 182, 212, 0.3);
            font-size: 0.8rem;
            font-weight: 600;
            color: var(--accent-cyan);
            letter-spacing: 0.05em;
            margin-bottom: 16px;
        }

        .section-header h2 {
            font-size: 2.2rem;
            font-weight: 700;
            margin-bottom: 12px;
        }

        .section-header p {
            font-size: 1rem;
            color: var(--text-secondary);
            max-width: 680px;
            line-height: 1.7;
        }

        .giftcode-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .giftcode-card {
            background: var(--bg-card);
            border: 1px solid rgba(255, 255, 255, 0.06);
            border-radius: var(--radius-md);
            padding: 28px;
            backdrop-filter: blur(10px);
            transition: all var(--transition-fast);
            position: relative;
            overflow: hidden;
        }

        .giftcode-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--accent-lime), var(--accent-cyan));
            opacity: 0;
            transition: opacity var(--transition-fast);
        }

        .giftcode-card:hover::before {
            opacity: 1;
        }

        .giftcode-card:hover {
            transform: translateY(-6px);
            border-color: rgba(163, 230, 53, 0.3);
            box-shadow: 0 16px 40px rgba(0, 0, 0, 0.5);
        }

        .giftcode-badge {
            display: inline-block;
            padding: 4px 12px;
            border-radius: 50px;
            font-size: 0.7rem;
            font-weight: 700;
            letter-spacing: 0.05em;
            background: rgba(244, 63, 94, 0.15);
            color: var(--accent-pink);
            margin-bottom: 14px;
            border: 1px solid rgba(244, 63, 94, 0.3);
        }

        .giftcode-card h3 {
            font-size: 1.25rem;
            font-weight: 700;
            margin-bottom: 8px;
        }

        .giftcode-card .code-value {
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--accent-lime);
            margin-bottom: 12px;
            font-family: 'Courier New', monospace;
            letter-spacing: 0.08em;
        }

        .giftcode-card .code-expiry {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        @media (max-width: 900px) {
            .giftcode-grid { grid-template-columns: repeat(2, 1fr); }
        }

        @media (max-width: 600px) {
            .giftcode-grid { grid-template-columns: 1fr; }
        }

        .howto-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .howto-item {
            text-align: center;
            padding: 32px 20px;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px solid rgba(255, 255, 255, 0.05);
            transition: all var(--transition-fast);
        }

        .howto-item:hover {
            border-color: rgba(6, 182, 212, 0.35);
            box-shadow: 0 0 24px rgba(6, 182, 212, 0.15);
        }

        .howto-number {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-lime));
            font-size: 1.3rem;
            font-weight: 800;
            color: #0a0a0a;
            margin-bottom: 18px;
        }

        .howto-item h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 8px;
        }

        .howto-item p {
            font-size: 0.9rem;
            color: var(--text-muted);
        }

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

        .scene-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .scene-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid rgba(255, 255, 255, 0.05);
            transition: all var(--transition-fast);
        }

        .scene-card:hover {
            border-color: rgba(163, 230, 53, 0.3);
            box-shadow: 0 12px 32px rgba(0, 0, 0, 0.5);
        }

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

        .scene-card-body {
            padding: 20px;
        }

        .scene-card-body h3 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 6px;
        }

        .scene-card-body p {
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        @media (max-width: 900px) {
            .scene-grid { grid-template-columns: repeat(2, 1fr); }
        }

        @media (max-width: 600px) {
            .scene-grid { grid-template-columns: 1fr; }
        }

        .news-list {
            list-style: none;
            display: grid;
            gap: 18px;
        }

        .news-list li a {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 18px 24px;
            background: var(--bg-card);
            border-radius: var(--radius-sm);
            border: 1px solid rgba(255, 255, 255, 0.05);
            transition: all var(--transition-fast);
        }

        .news-list li a:hover {
            border-color: rgba(6, 182, 212, 0.35);
            box-shadow: 0 0 16px rgba(6, 182, 212, 0.1);
        }

        .news-title {
            font-weight: 600;
            font-size: 1rem;
        }

        .news-date {
            font-size: 0.8rem;
            color: var(--text-muted);
            white-space: nowrap;
            margin-left: 16px;
        }

        .faq-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }

        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 28px;
            border: 1px solid rgba(255, 255, 255, 0.05);
            transition: all var(--transition-fast);
        }

        .faq-item:hover {
            border-color: rgba(6, 182, 212, 0.25);
        }

        .faq-item h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--accent-cyan);
        }

        .faq-item p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.7;
        }

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

        .site-footer {
            background: var(--bg-secondary);
            border-top: 1px solid rgba(6, 182, 212, 0.1);
            padding: 60px 0 30px;
        }

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

        .footer-col h4 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 18px;
            color: var(--text-primary);
        }

        .footer-col p,
        .footer-col li {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.7;
        }

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

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

        .footer-col ul li a {
            color: var(--text-muted);
            transition: color var(--transition-fast);
        }

        .footer-col ul li a:hover {
            color: var(--accent-lime);
        }

        .footer-bottom {
            margin-top: 40px;
            padding-top: 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            text-align: center;
            font-size: 0.8rem;
            color: var(--text-muted);
        }

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

        @media (max-width: 500px) {
            .footer-grid { grid-template-columns: 1fr; }
        }

        .site-footer {
            background: var(--bg-secondary);
            border-top: 1px solid rgba(6, 182, 212, 0.1);
            padding: 60px 0 30px;
        }

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

        .footer-col h4 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 18px;
            color: var(--text-primary);
        }

        .footer-col p,
        .footer-col li {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.7;
        }

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

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

        .footer-col ul li a {
            color: var(--text-muted);
            transition: color var(--transition-fast);
        }

        .footer-col ul li a:hover {
            color: var(--accent-lime);
        }

        .footer-bottom {
            margin-top: 40px;
            padding-top: 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            text-align: center;
            font-size: 0.8rem;
            color: var(--text-muted);
        }

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

        @media (max-width: 500px) {
            .footer-grid { grid-template-columns: 1fr; }
        }

/* roulang page: category3 */
:root {
            --bg-primary: #07070D;
            --bg-secondary: #0E0E1E;
            --bg-card: rgba(18, 20, 30, 0.7);
            --accent-cyan: #06B6D4;
            --accent-lime: #A3E635;
            --accent-pink: #F43F5E;
            --text-primary: #FFFFFF;
            --text-secondary: #94A3B8;
            --text-muted: #64748B;
            --border-glow: rgba(163, 230, 53, 0.3);
            --shadow-neon: 0 0 20px rgba(6, 182, 212, 0.45);
            --shadow-lime: 0 0 15px rgba(163, 230, 53, 0.4);
            --radius-sm: 8px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --container-max: 1280px;
            --font-sans: 'Segoe UI', system-ui, -apple-system, sans-serif;
            --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        body {
            font-family: var(--font-sans);
            background: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.6;
            min-height: 100vh;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            padding-top: 70px;
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
        }

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

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

        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            background: none;
        }

        /* 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 rgba(6, 182, 212, 0.15);
            transition: background var(--transition-fast);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 70px;
            gap: 24px;
        }

        .logo {
            font-size: 1.25rem;
            font-weight: 700;
            letter-spacing: -0.02em;
            background: linear-gradient(135deg, var(--accent-lime), var(--accent-cyan));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            white-space: nowrap;
            flex-shrink: 0;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 28px;
            list-style: none;
        }

        .nav-links a {
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            padding: 6px 0;
            position: relative;
            white-space: nowrap;
            transition: color var(--transition-fast);
        }

        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--accent-lime);
            transition: width var(--transition-fast);
        }

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

        .nav-links a:hover::after,
        .nav-links a.active::after {
            width: 100%;
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .btn-login {
            padding: 8px 20px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.85rem;
            color: var(--accent-cyan);
            border: 1.5px solid rgba(6, 182, 212, 0.5);
            transition: all var(--transition-fast);
        }

        .btn-login:hover {
            background: rgba(6, 182, 212, 0.1);
            border-color: var(--accent-cyan);
            box-shadow: 0 0 12px rgba(6, 182, 212, 0.3);
        }

        .btn-signup {
            padding: 8px 20px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 0.85rem;
            background: linear-gradient(135deg, var(--accent-lime), #65a30d);
            color: #0a0a0a;
            box-shadow: var(--shadow-lime);
            transition: all var(--transition-fast);
        }

        .btn-signup:hover {
            transform: translateY(-1px);
            box-shadow: 0 0 24px rgba(163, 230, 53, 0.6);
        }

        .mobile-toggle {
            display: none;
            font-size: 1.5rem;
            color: var(--text-primary);
            padding: 8px;
        }

        /* Page Header */
        .page-header {
            padding: 60px 0 40px;
            background: linear-gradient(180deg, rgba(6, 182, 212, 0.08) 0%, transparent 60%);
            border-bottom: 1px solid rgba(6, 182, 212, 0.1);
            margin-bottom: 40px;
        }

        .page-header .container {
            max-width: 960px;
        }

        .page-header h1 {
            font-size: 2.25rem;
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 12px;
            background: linear-gradient(135deg, var(--accent-lime), var(--accent-cyan));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .page-header p {
            font-size: 1.1rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 20px;
            max-width: 720px;
        }

        .breadcrumb {
            display: flex;
            gap: 8px;
            align-items: center;
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-bottom: 16px;
        }

        .breadcrumb a {
            color: var(--accent-cyan);
            transition: color var(--transition-fast);
        }

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

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

        /* Metrics Row */
        .metrics-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            padding: 0 0 40px;
        }

        .metric-card {
            background: rgba(14, 14, 30, 0.6);
            backdrop-filter: blur(10px);
            border: 1px solid rgba(6, 182, 212, 0.15);
            border-radius: var(--radius-md);
            padding: 24px 20px;
            text-align: center;
            transition: all var(--transition-fast);
        }

        .metric-card:hover {
            border-color: var(--accent-cyan);
            box-shadow: var(--shadow-neon);
            transform: translateY(-4px);
        }

        .metric-card .metric-icon {
            font-size: 2rem;
            margin-bottom: 12px;
            color: var(--accent-lime);
        }

        .metric-card .metric-value {
            font-size: 1.75rem;
            font-weight: 800;
            background: linear-gradient(135deg, var(--accent-lime), var(--accent-cyan));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            display: block;
            margin-bottom: 4px;
        }

        .metric-card .metric-label {
            font-size: 0.85rem;
            color: var(--text-muted);
            font-weight: 500;
        }

        /* Section Styles */
        .section {
            padding: 40px 0 60px;
        }

        .section-label {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 700;
            letter-spacing: 0.05em;
            text-transform: uppercase;
            color: var(--accent-cyan);
            background: rgba(6, 182, 212, 0.1);
            padding: 6px 14px;
            border-radius: 50px;
            margin-bottom: 16px;
        }

        .section-title {
            font-size: 1.75rem;
            font-weight: 700;
            margin-bottom: 12px;
            line-height: 1.3;
        }

        .section-desc {
            font-size: 1rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 32px;
            max-width: 720px;
        }

        /* Strategy Cards */
        .strategy-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }

        .strategy-card {
            background: rgba(14, 14, 30, 0.5);
            backdrop-filter: blur(12px);
            border: 1px solid rgba(6, 182, 212, 0.12);
            border-radius: var(--radius-lg);
            padding: 28px;
            display: flex;
            gap: 20px;
            transition: all 0.3s ease;
            position: relative;
            overflow: hidden;
        }

        .strategy-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 4px;
            height: 100%;
            background: linear-gradient(180deg, var(--accent-lime), var(--accent-cyan));
            opacity: 0;
            transition: opacity 0.3s ease;
        }

        .strategy-card:hover {
            border-color: rgba(163, 230, 53, 0.4);
            box-shadow: 0 0 24px rgba(6, 182, 212, 0.2);
            transform: translateY(-2px);
        }

        .strategy-card:hover::before {
            opacity: 1;
        }

        .strategy-card .card-icon {
            width: 56px;
            height: 56px;
            border-radius: 12px;
            background: rgba(163, 230, 53, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            font-size: 1.5rem;
            color: var(--accent-lime);
        }

        .strategy-card .card-content h3 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 8px;
        }

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

        /* Comparison Table */
        .comparison-block {
            background: rgba(14, 14, 30, 0.4);
            border-radius: var(--radius-lg);
            padding: 32px;
            border: 1px solid rgba(6, 182, 212, 0.1);
            overflow-x: auto;
        }

        .comparison-table {
            width: 100%;
            border-collapse: collapse;
            min-width: 600px;
        }

        .comparison-table th,
        .comparison-table td {
            padding: 14px 20px;
            text-align: left;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }

        .comparison-table th {
            font-weight: 700;
            font-size: 0.85rem;
            text-transform: uppercase;
            letter-spacing: 0.04em;
            color: var(--accent-cyan);
        }

        .comparison-table td {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        .comparison-table tr:last-child td {
            border-bottom: none;
        }

        .badge-yes {
            display: inline-block;
            padding: 2px 10px;
            border-radius: 20px;
            background: rgba(163, 230, 53, 0.15);
            color: var(--accent-lime);
            font-size: 0.78rem;
            font-weight: 600;
        }

        .badge-no {
            display: inline-block;
            padding: 2px 10px;
            border-radius: 20px;
            background: rgba(244, 63, 94, 0.1);
            color: var(--accent-pink);
            font-size: 0.78rem;
            font-weight: 600;
        }

        /* Milestone Timeline */
        .timeline {
            display: flex;
            flex-direction: column;
            gap: 24px;
        }

        .timeline-item {
            display: flex;
            gap: 20px;
            align-items: flex-start;
        }

        .timeline-dot {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: rgba(6, 182, 212, 0.1);
            border: 2px solid var(--accent-cyan);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            font-size: 1.25rem;
            color: var(--accent-cyan);
            position: relative;
        }

        .timeline-item:not(:last-child) .timeline-dot::after {
            content: '';
            position: absolute;
            top: 48px;
            left: 50%;
            transform: translateX(-50%);
            width: 2px;
            height: 32px;
            background: rgba(6, 182, 212, 0.2);
        }

        .timeline-content h4 {
            font-weight: 700;
            font-size: 1rem;
            margin-bottom: 4px;
        }

        .timeline-content p {
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        /* Article List */
        .article-list {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .article-card {
            background: rgba(14, 14, 30, 0.5);
            border: 1px solid rgba(6, 182, 212, 0.1);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all 0.3s ease;
        }

        .article-card:hover {
            border-color: var(--accent-cyan);
            box-shadow: 0 0 20px rgba(6, 182, 212, 0.25);
            transform: translateY(-4px);
        }

        .article-card-thumb {
            width: 100%;
            height: 180px;
            object-fit: cover;
            display: block;
        }

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

        .article-card-cat {
            font-size: 0.72rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.04em;
            color: var(--accent-cyan);
            margin-bottom: 6px;
        }

        .article-card-body h3 {
            font-size: 0.95rem;
            font-weight: 700;
            line-height: 1.4;
            margin-bottom: 8px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .article-card-body p {
            font-size: 0.82rem;
            color: var(--text-muted);
            line-height: 1.5;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 12px;
        }

        .article-card-footer {
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 0.75rem;
            color: var(--text-muted);
        }

        .article-card-link {
            color: var(--accent-lime);
            font-weight: 600;
            font-size: 0.82rem;
            transition: color var(--transition-fast);
        }

        .article-card-link:hover {
            color: var(--accent-cyan);
        }

        /* Security / Guarantee */
        .guarantee-block {
            background: linear-gradient(135deg, rgba(163, 230, 53, 0.03), rgba(6, 182, 212, 0.06));
            border: 1px solid rgba(6, 182, 212, 0.15);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            display: flex;
            gap: 20px;
            align-items: center;
        }

        .guarantee-icon {
            font-size: 2.5rem;
            color: var(--accent-lime);
            flex-shrink: 0;
        }

        .guarantee-text h3 {
            font-weight: 700;
            font-size: 1.15rem;
            margin-bottom: 6px;
        }

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

        /* FAQ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .faq-item {
            background: rgba(14, 14, 30, 0.5);
            border: 1px solid rgba(6, 182, 212, 0.1);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition-fast);
        }

        .faq-item:hover {
            border-color: rgba(6, 182, 212, 0.3);
        }

        .faq-question {
            padding: 18px 20px;
            font-weight: 700;
            font-size: 0.95rem;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            user-select: none;
            transition: color var(--transition-fast);
        }

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

        .faq-question .faq-icon {
            font-size: 0.9rem;
            transition: transform 0.3s ease;
            color: var(--accent-cyan);
        }

        .faq-answer {
            padding: 0 20px 18px;
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.65;
            display: none;
        }

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

        .faq-item.open .faq-icon {
            transform: rotate(45deg);
        }

        .view-all-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--accent-lime);
            font-weight: 600;
            font-size: 0.9rem;
            margin-top: 16px;
            transition: color var(--transition-fast);
        }

        .view-all-link:hover {
            color: var(--accent-cyan);
        }

        /* Footer */
        .site-footer {
            background: rgba(14, 14, 30, 0.8);
            border-top: 1px solid rgba(6, 182, 212, 0.15);
            padding: 48px 0 24px;
            margin-top: 40px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
        }

        .footer-col h4 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--text-primary);
        }

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

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

        .footer-col ul li a {
            color: var(--text-muted);
            font-size: 0.85rem;
            transition: color var(--transition-fast);
        }

        .footer-col ul li a:hover {
            color: var(--accent-lime);
        }

        .footer-bottom {
            margin-top: 28px;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            text-align: center;
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .metrics-row {
                grid-template-columns: repeat(2, 1fr);
            }

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

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

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

            .page-header h1 {
                font-size: 1.85rem;
            }
        }

        @media (max-width: 768px) {
            .mobile-toggle {
                display: block;
            }

            .nav-links {
                position: fixed;
                top: 70px;
                left: 0;
                right: 0;
                background: rgba(7, 7, 13, 0.95);
                backdrop-filter: blur(20px);
                flex-direction: column;
                padding: 24px;
                gap: 20px;
                border-bottom: 1px solid rgba(6, 182, 212, 0.2);
                transform: translateY(-120%);
                transition: transform 0.3s ease;
                z-index: 999;
            }

            .nav-links.open {
                transform: translateY(0);
            }

            .header-actions {
                margin-left: auto;
            }

            .header-actions .btn-login,
            .header-actions .btn-signup {
                padding: 6px 16px;
                font-size: 0.8rem;
            }

            .metrics-row {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }

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

            .comparison-block {
                padding: 20px 16px;
            }

            .guarantee-block {
                flex-direction: column;
                text-align: center;
            }

            .page-header h1 {
                font-size: 1.6rem;
            }

            .section-title {
                font-size: 1.35rem;
            }
        }

        @media (max-width: 520px) {
            .metrics-row {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }

            .metric-card {
                padding: 16px 12px;
            }

            .metric-card .metric-value {
                font-size: 1.35rem;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }

            .strategy-card {
                padding: 20px;
            }
        }

/* roulang page: category4 */
:root {
            --bg-primary: #07070D;
            --bg-secondary: #0E0E1E;
            --bg-card: rgba(18, 20, 30, 0.7);
            --bg-glass: rgba(14, 14, 30, 0.6);
            --accent-cyan: #06B6D4;
            --accent-lime: #A3E635;
            --accent-pink: #F43F5E;
            --text-primary: #FFFFFF;
            --text-secondary: #94A3B8;
            --text-muted: #64748B;
            --border-glow: rgba(163, 230, 53, 0.3);
            --shadow-neon: 0 0 20px rgba(6, 182, 212, 0.45);
            --shadow-lime: 0 0 15px rgba(163, 230, 53, 0.4);
            --radius-sm: 8px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --container-max: 1280px;
            --font-sans: 'Segoe UI', system-ui, -apple-system, sans-serif;
            --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
        }

        * {
            box-sizing: border-box;
        }

        body {
            font-family: var(--font-sans);
            background: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.6;
            min-height: 100vh;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            margin: 0;
            padding: 0;
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
        }

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

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

        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            background: none;
        }

        h1, h2, h3, h4 {
            margin: 0;
            line-height: 1.3;
        }

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

        /* Header */
        .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 rgba(6, 182, 212, 0.15);
            transition: background var(--transition-fast);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 70px;
            gap: 24px;
        }

        .logo {
            font-size: 1.25rem;
            font-weight: 700;
            letter-spacing: -0.02em;
            background: linear-gradient(135deg, var(--accent-lime), var(--accent-cyan));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            white-space: nowrap;
            flex-shrink: 0;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 28px;
            list-style: none;
            margin: 0;
        }

        .nav-links a {
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            padding: 6px 0;
            position: relative;
            white-space: nowrap;
            transition: color var(--transition-fast);
        }

        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--accent-lime);
            transition: width var(--transition-fast);
        }

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

        .nav-links a:hover::after,
        .nav-links a.active::after {
            width: 100%;
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .btn-login {
            padding: 8px 20px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.85rem;
            color: var(--accent-cyan);
            border: 1.5px solid rgba(6, 182, 212, 0.5);
            transition: all var(--transition-fast);
            background: transparent;
        }

        .btn-login:hover {
            background: rgba(6, 182, 212, 0.1);
            border-color: var(--accent-cyan);
            box-shadow: 0 0 12px rgba(6, 182, 212, 0.3);
        }

        .btn-signup {
            padding: 8px 20px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 0.85rem;
            background: linear-gradient(135deg, var(--accent-lime), #65a30d);
            color: #0a0a0a;
            box-shadow: var(--shadow-lime);
            transition: all var(--transition-fast);
        }

        .btn-signup:hover {
            transform: translateY(-1px);
            box-shadow: 0 0 24px rgba(163, 230, 53, 0.6);
        }

        .mobile-toggle {
            display: none;
            font-size: 1.5rem;
            color: var(--text-primary);
            padding: 8px;
        }

        /* FAB */
        .fab-button {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: 50;
            width: 56px;
            height: 56px;
            border-radius: 28px;
            background: rgba(7, 7, 13, 0.8);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border: 2px solid transparent;
            background-clip: padding-box;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-cyan);
            font-size: 1.6rem;
            box-shadow: var(--shadow-neon);
            transition: all var(--transition-fast);
            opacity: 0.8;
            animation: fabBreathe 3s ease-in-out infinite;
        }

        .fab-button::before {
            content: '';
            position: absolute;
            inset: -2px;
            border-radius: 30px;
            padding: 2px;
            background: linear-gradient(135deg, var(--accent-lime), var(--accent-cyan));
            -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
            mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
            -webkit-mask-composite: xor;
            mask-composite: exclude;
        }

        .fab-button:hover {
            opacity: 1;
            transform: scale(1.12);
            box-shadow: 0 0 30px rgba(6, 182, 212, 0.7);
            color: var(--accent-lime);
        }

        @keyframes fabBreathe {
            0%, 100% { transform: translateY(0); }
            50% { transform: translateY(-4px); }
        }

        /* Hero Section */
        .hero-section {
            padding: 130px 0 80px;
            background: linear-gradient(180deg, rgba(6, 182, 212, 0.08) 0%, transparent 50%);
            position: relative;
            overflow: hidden;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: url('/assets/images/backpic/back-5.jpg') center/cover no-repeat;
            opacity: 0.12;
            pointer-events: none;
        }

        .hero-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
            position: relative;
            z-index: 1;
        }

        .hero-badge {
            display: inline-block;
            padding: 6px 18px;
            border-radius: 50px;
            font-size: 0.8rem;
            font-weight: 700;
            letter-spacing: 0.04em;
            background: rgba(6, 182, 212, 0.15);
            color: var(--accent-cyan);
            border: 1px solid rgba(6, 182, 212, 0.3);
            margin-bottom: 20px;
            text-transform: uppercase;
        }

        .hero-title {
            font-size: 2.8rem;
            font-weight: 800;
            line-height: 1.2;
            letter-spacing: -0.02em;
            margin-bottom: 18px;
            background: linear-gradient(135deg, var(--text-primary) 0%, var(--accent-cyan) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero-subtitle {
            font-size: 1.15rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 28px;
            max-width: 480px;
        }

        .hero-actions {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }

        .btn-primary-glow {
            padding: 13px 30px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 0.95rem;
            background: linear-gradient(135deg, var(--accent-lime), #65a30d);
            color: #0a0a0a;
            box-shadow: var(--shadow-lime);
            transition: all var(--transition-fast);
        }

        .btn-primary-glow:hover {
            transform: translateY(-2px);
            box-shadow: 0 0 28px rgba(163, 230, 53, 0.7);
        }

        .btn-outline-neon {
            padding: 13px 30px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 0.95rem;
            border: 2px solid rgba(6, 182, 212, 0.6);
            color: var(--accent-cyan);
            background: transparent;
            transition: all var(--transition-fast);
        }

        .btn-outline-neon:hover {
            background: rgba(6, 182, 212, 0.1);
            box-shadow: var(--shadow-neon);
        }

        .hero-featured-card {
            background: var(--bg-glass);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border: 1px solid rgba(163, 230, 53, 0.2);
            border-radius: var(--radius-lg);
            padding: 32px;
            box-shadow: 0 20px 50px rgba(0, 0, 0, 0.4);
        }

        .hero-featured-card img {
            border-radius: var(--radius-md);
            margin-bottom: 20px;
        }

        .hero-featured-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 8px;
        }

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

        /* Stats Strip */
        .stats-strip {
            background: var(--bg-secondary);
            border-top: 1px solid rgba(6, 182, 212, 0.15);
            border-bottom: 1px solid rgba(6, 182, 212, 0.15);
            padding: 30px 0;
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
            text-align: center;
        }

        .stat-item .stat-number {
            font-size: 2rem;
            font-weight: 800;
            background: linear-gradient(135deg, var(--accent-lime), var(--accent-cyan));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .stat-item .stat-label {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-top: 4px;
        }

        /* General Section */
        .section {
            padding: 80px 0;
        }

        .section-header {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            margin-bottom: 48px;
            gap: 24px;
            flex-wrap: wrap;
        }

        .section-label {
            font-size: 0.8rem;
            font-weight: 700;
            letter-spacing: 0.06em;
            text-transform: uppercase;
            color: var(--accent-cyan);
            margin-bottom: 8px;
        }

        .section-title {
            font-size: 2rem;
            font-weight: 800;
            letter-spacing: -0.02em;
        }

        .section-desc {
            color: var(--text-secondary);
            font-size: 0.95rem;
            max-width: 550px;
            line-height: 1.65;
        }

        .text-link {
            color: var(--accent-cyan);
            font-weight: 600;
            font-size: 0.9rem;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: gap var(--transition-fast);
        }

        .text-link:hover {
            color: var(--accent-lime);
            gap: 12px;
        }

        .text-link i {
            font-size: 0.7rem;
            transition: transform var(--transition-fast);
        }

        .text-link:hover i {
            transform: translateX(3px);
        }

        /* Glass Cards */
        .card-glass {
            background: var(--bg-glass);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid rgba(6, 182, 212, 0.15);
            border-radius: var(--radius-md);
            padding: 28px;
            transition: all var(--transition-fast);
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
        }

        .card-glass:hover {
            border-color: var(--accent-cyan);
            box-shadow: var(--shadow-neon);
            transform: translateY(-4px);
        }

        .card-glass .card-icon {
            width: 50px;
            height: 50px;
            border-radius: var(--radius-sm);
            background: rgba(6, 182, 212, 0.12);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            color: var(--accent-cyan);
            margin-bottom: 18px;
        }

        .card-glass h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 8px;
        }

        .card-glass p {
            color: var(--text-secondary);
            font-size: 0.88rem;
            line-height: 1.6;
        }

        .three-col-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

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

        /* Timeline */
        .timeline {
            position: relative;
            padding-left: 36px;
        }

        .timeline::before {
            content: '';
            position: absolute;
            left: 11px;
            top: 0;
            bottom: 0;
            width: 2px;
            background: linear-gradient(180deg, var(--accent-cyan), transparent);
        }

        .timeline-item {
            position: relative;
            margin-bottom: 36px;
            padding-left: 24px;
        }

        .timeline-item::before {
            content: '';
            position: absolute;
            left: -27px;
            top: 4px;
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background: var(--accent-cyan);
            box-shadow: 0 0 10px rgba(6, 182, 212, 0.6);
        }

        .timeline-item h4 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 4px;
        }

        .timeline-item p {
            color: var(--text-secondary);
            font-size: 0.9rem;
            line-height: 1.6;
        }

        /* Content list */
        .content-list {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }

        .content-card {
            background: var(--bg-glass);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid rgba(163, 230, 53, 0.15);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition-fast);
            display: flex;
        }

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

        .content-card img {
            width: 160px;
            min-height: 140px;
            object-fit: cover;
            flex-shrink: 0;
        }

        .content-card-body {
            padding: 20px;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .content-card-body .tag {
            font-size: 0.7rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.04em;
            color: var(--accent-cyan);
            margin-bottom: 6px;
        }

        .content-card-body h3 {
            font-size: 1rem;
            font-weight: 700;
            line-height: 1.4;
            margin-bottom: 8px;
        }

        .content-card-body p {
            font-size: 0.8rem;
            color: var(--text-muted);
            line-height: 1.5;
        }

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

        .faq-item {
            background: var(--bg-glass);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid rgba(6, 182, 212, 0.12);
            border-radius: var(--radius-md);
            padding: 24px;
            margin-bottom: 16px;
            transition: all var(--transition-fast);
        }

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

        .faq-item h4 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--accent-lime);
        }

        .faq-item p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.65;
        }

        /* CTA */
        .cta-panel {
            background: linear-gradient(135deg, rgba(6, 182, 212, 0.15), rgba(163, 230, 53, 0.08));
            border: 1px solid rgba(163, 230, 53, 0.25);
            border-radius: var(--radius-lg);
            padding: 60px 40px;
            text-align: left;
            position: relative;
            overflow: hidden;
        }

        .cta-panel .cta-inner {
            position: relative;
            z-index: 1;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 30px;
            flex-wrap: wrap;
        }

        .cta-panel h2 {
            font-size: 1.8rem;
            font-weight: 800;
            letter-spacing: -0.02em;
        }

        .cta-panel p {
            color: var(--text-secondary);
            margin-top: 8px;
            max-width: 450px;
        }

        /* Footer */
        .site-footer {
            background: var(--bg-secondary);
            border-top: 1px solid rgba(6, 182, 212, 0.2);
            padding: 60px 0 30px;
            margin-top: 60px;
        }

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

        .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 700;
            margin-bottom: 16px;
            color: var(--text-primary);
        }

        .footer-col ul li {
            margin-bottom: 10px;
        }

        .footer-col ul li a {
            font-size: 0.85rem;
            color: var(--text-secondary);
            transition: color var(--transition-fast);
        }

        .footer-col ul li a:hover {
            color: var(--accent-cyan);
        }

        .footer-bottom {
            margin-top: 40px;
            padding-top: 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            text-align: center;
            font-size: 0.78rem;
            color: var(--text-muted);
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .hero-grid {
                grid-template-columns: 1fr;
                gap: 36px;
            }
            .hero-title {
                font-size: 2.2rem;
            }
            .three-col-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .content-list {
                grid-template-columns: 1fr;
            }
            .two-col-grid {
                grid-template-columns: 1fr;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            .nav-links {
                position: fixed;
                top: 70px;
                left: 0;
                right: 0;
                background: rgba(7, 7, 13, 0.95);
                backdrop-filter: blur(20px);
                flex-direction: column;
                padding: 24px;
                gap: 20px;
                border-bottom: 1px solid rgba(6, 182, 212, 0.2);
                transform: translateY(-120%);
                transition: transform 0.3s ease;
                z-index: 999;
            }
            .nav-links.open {
                transform: translateY(0);
            }
            .mobile-toggle {
                display: block;
            }
            .header-actions .btn-login,
            .header-actions .btn-signup {
                padding: 6px 16px;
                font-size: 0.8rem;
            }
            .three-col-grid {
                grid-template-columns: 1fr;
            }
            .hero-title {
                font-size: 1.8rem;
            }
            .cta-panel .cta-inner {
                flex-direction: column;
                text-align: center;
            }
            .content-card {
                flex-direction: column;
            }
            .content-card img {
                width: 100%;
            }
        }

        @media (max-width: 520px) {
            .hero-section {
                padding: 110px 0 50px;
            }
            .hero-title {
                font-size: 1.6rem;
            }
            .hero-actions {
                flex-direction: column;
            }
            .stats-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
        }

/* roulang: framework shim */
/* 覆盖 Bootstrap 等对 a/btn 的全局默认，避免导航出现下划线/蓝链 */
.site-header a,.site-header a:hover,.navbar a,.navbar a:hover,.nav-links a,.nav-links a:hover,header nav a,header nav a:hover{text-decoration:none}
.site-header .btn,.navbar .btn,.nav-cta{text-decoration:none}