/* roulang page: index */
:root {
            --bg-primary: #0A2E1C;
            --bg-secondary: #123E25;
            --bg-card: #0D3520;
            --accent-gold: #FFD700;
            --accent-red: #D32F2F;
            --text-white: #FFFFFF;
            --text-mint: #D1F2EB;
            --text-muted: #A6D3C0;
            --border-gold: rgba(255, 215, 0, 0.35);
            --shadow-gold: 0 4px 20px rgba(255, 215, 0, 0.2);
            --radius-lg: 18px;
            --radius-md: 12px;
            --radius-sm: 8px;
            --space-section: 72px;
            --font-main: 'Segoe UI', 'Inter', -apple-system, BlinkMacSystemFont, 'Roboto', 'Helvetica Neue', Arial, sans-serif;
        }

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

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

        body {
            font-family: var(--font-main);
            background-color: var(--bg-primary);
            color: var(--text-white);
            line-height: 1.6;
            min-height: 100vh;
            overflow-x: hidden;
        }

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

        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.3s ease, opacity 0.3s ease, transform 0.3s ease;
        }

        a:hover {
            opacity: 0.85;
        }

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

        button {
            cursor: pointer;
            border: none;
            background: none;
            color: inherit;
        }

        .container {
            max-width: 1240px;
            margin: 0 auto;
            padding: 0 24px;
        }

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

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

        .section-title {
            font-size: 2.2rem;
            font-weight: 700;
            line-height: 1.3;
            margin-bottom: 14px;
            color: var(--text-white);
            letter-spacing: -0.5px;
        }

        .section-desc {
            font-size: 1.1rem;
            color: var(--text-mint);
            line-height: 1.7;
            max-width: 800px;
            margin-bottom: 36px;
        }

        .text-gold {
            color: var(--accent-gold);
        }

        .text-red {
            color: var(--accent-red);
        }

        /* Header & Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background-color: rgba(10, 46, 28, 0.95);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-gold);
            padding: 14px 0;
            transition: background-color 0.3s ease;
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            flex-wrap: wrap;
        }

        .brand-logo {
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--accent-gold);
            letter-spacing: -0.5px;
            line-height: 1.2;
            max-width: 360px;
        }

        .brand-logo a:hover {
            opacity: 0.9;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 28px;
            flex-wrap: wrap;
        }

        .main-nav a {
            font-size: 0.98rem;
            font-weight: 500;
            color: var(--text-mint);
            position: relative;
            padding: 6px 0;
            transition: color 0.25s ease;
        }

        .main-nav a::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--accent-gold);
            transition: width 0.3s ease;
        }

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

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

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

        .btn-login {
            padding: 10px 18px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--text-white);
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.3);
            transition: all 0.25s ease;
        }

        .btn-login:hover {
            border-color: var(--accent-gold);
            color: var(--accent-gold);
            background: rgba(255, 215, 0, 0.08);
        }

        .btn-signup {
            padding: 10px 22px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 0.95rem;
            color: #0A2E1C;
            background: linear-gradient(135deg, #FFE066, #FFD700);
            box-shadow: var(--shadow-gold);
            transition: all 0.25s ease;
        }

        .btn-signup:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(255, 215, 0, 0.4);
        }

        /* Hero Section */
        .hero {
            padding: 60px 0 80px;
            background: linear-gradient(160deg, #0A2E1C 0%, #0F3A25 50%, #123E25 100%);
            position: relative;
            overflow: hidden;
        }

        .hero::before {
            content: '';
            position: absolute;
            top: -40%;
            right: -10%;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(255, 215, 0, 0.08) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero-content {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 48px;
            align-items: center;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 18px;
            background: rgba(255, 215, 0, 0.12);
            border: 1px solid var(--border-gold);
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--accent-gold);
            margin-bottom: 22px;
            letter-spacing: 0.3px;
        }

        .hero-badge .dot {
            width: 8px;
            height: 8px;
            background: var(--accent-red);
            border-radius: 50%;
            animation: pulse-dot 1.8s infinite;
        }

        @keyframes pulse-dot {
            0%, 100% { opacity: 1; transform: scale(1); }
            50% { opacity: 0.4; transform: scale(1.5); }
        }

        .hero h1 {
            font-size: 3.2rem;
            font-weight: 800;
            line-height: 1.2;
            letter-spacing: -1px;
            margin-bottom: 20px;
            color: var(--text-white);
        }

        .hero h1 .highlight {
            color: var(--accent-gold);
            position: relative;
        }

        .hero-subtitle {
            font-size: 1.15rem;
            color: var(--text-mint);
            line-height: 1.7;
            margin-bottom: 32px;
            max-width: 620px;
        }

        .hero-cta-group {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            margin-bottom: 32px;
        }

        .btn-primary {
            padding: 14px 32px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 1.05rem;
            background: linear-gradient(135deg, #FFE066, #FFD700);
            color: #0A2E1C;
            box-shadow: 0 8px 24px rgba(255, 215, 0, 0.35);
            transition: all 0.3s ease;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 14px 36px rgba(255, 215, 0, 0.5);
        }

        .btn-outline {
            padding: 14px 28px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 1rem;
            background: transparent;
            border: 1.5px solid var(--accent-gold);
            color: var(--accent-gold);
            transition: all 0.3s ease;
        }

        .btn-outline:hover {
            background: rgba(255, 215, 0, 0.1);
            transform: translateY(-2px);
        }

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

        .hero-stat {
            display: flex;
            flex-direction: column;
        }

        .hero-stat .stat-number {
            font-size: 1.7rem;
            font-weight: 800;
            color: var(--accent-gold);
            line-height: 1.2;
        }

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

        .hero-visual {
            position: relative;
            z-index: 2;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
            border: 1px solid var(--border-gold);
            min-height: 380px;
        }

        .hero-visual img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            min-height: 380px;
        }

        /* Promo Banner / Deadline */
        .promo-banner {
            background: linear-gradient(135deg, #D32F2F 0%, #B71C1C 100%);
            padding: 18px 24px;
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
            margin-top: 40px;
            border: 1px solid rgba(255, 255, 255, 0.15);
        }

        .promo-banner .promo-text {
            font-weight: 700;
            font-size: 1.05rem;
            color: #FFFDF9;
        }

        .promo-banner .promo-timer {
            background: rgba(0, 0, 0, 0.3);
            padding: 8px 18px;
            border-radius: 50px;
            font-weight: 700;
            color: #FFD700;
            font-size: 0.95rem;
        }

        /* Ranking Cards */
        .ranking-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 24px;
            margin-top: 24px;
        }

        .rank-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-gold);
            padding: 28px;
            position: relative;
            transition: all 0.3s ease;
            overflow: hidden;
        }

        .rank-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-gold);
            border-color: var(--accent-gold);
        }

        .rank-card .rank-number {
            position: absolute;
            top: 20px;
            right: 24px;
            font-size: 2.8rem;
            font-weight: 900;
            color: rgba(255, 215, 0, 0.15);
            line-height: 1;
        }

        .rank-card .rank-badge {
            display: inline-block;
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 0.75rem;
            font-weight: 700;
            background: rgba(211, 47, 47, 0.15);
            color: #FF6B6B;
            border: 1px solid rgba(211, 47, 47, 0.3);
            margin-bottom: 16px;
        }

        .rank-card h3 {
            font-size: 1.3rem;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--text-white);
        }

        .rank-card .rank-desc {
            font-size: 0.95rem;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 18px;
        }

        .rank-card .rank-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.8rem;
            color: var(--text-mint);
        }

        .rank-card .rank-meta span {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            background: rgba(255, 215, 0, 0.08);
            padding: 6px 12px;
            border-radius: 20px;
        }

        /* Content List (CMS) */
        .content-layout {
            display: grid;
            grid-template-columns: 1.5fr 0.5fr;
            gap: 36px;
            align-items: start;
        }

        .content-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 0;
        }

        .content-list li {
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            transition: background 0.25s ease;
        }

        .content-list li:hover {
            background: rgba(255, 215, 0, 0.04);
        }

        .content-list a {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 16px 8px;
            color: var(--text-white);
        }

        .content-list .content-title {
            font-weight: 600;
            font-size: 1rem;
            flex: 1;
            line-height: 1.4;
        }

        .content-list .content-date {
            font-size: 0.8rem;
            color: var(--text-muted);
            white-space: nowrap;
        }

        .content-list .content-cat {
            display: inline-block;
            background: rgba(255, 215, 0, 0.1);
            color: var(--accent-gold);
            padding: 3px 10px;
            border-radius: 14px;
            font-size: 0.7rem;
            font-weight: 600;
        }

        .sidebar-recommend {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 28px;
            border: 1px solid var(--border-gold);
        }

        .sidebar-recommend h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 18px;
            color: var(--accent-gold);
        }

        .sidebar-recommend ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .sidebar-recommend ul li a {
            font-size: 0.92rem;
            color: var(--text-mint);
            display: flex;
            gap: 10px;
            line-height: 1.4;
        }

        .sidebar-recommend ul li a::before {
            content: '→';
            color: var(--accent-gold);
            font-weight: 700;
        }

        /* Value Props */
        .value-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
            gap: 24px;
        }

        .value-item {
            padding: 28px;
            background: rgba(255, 255, 255, 0.03);
            border-radius: var(--radius-md);
            border-left: 3px solid var(--accent-gold);
            transition: all 0.3s ease;
        }

        .value-item:hover {
            background: rgba(255, 215, 0, 0.06);
            transform: translateX(6px);
        }

        .value-item .value-icon {
            font-size: 2rem;
            margin-bottom: 14px;
            color: var(--accent-gold);
        }

        .value-item h4 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 8px;
        }

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

        /* Social Proof */
        .social-proof {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 36px;
            padding: 40px 0;
        }

        .social-proof .proof-item {
            display: flex;
            align-items: center;
            gap: 14px;
        }

        .social-proof .proof-number {
            font-size: 2.5rem;
            font-weight: 800;
            color: var(--accent-gold);
            line-height: 1;
        }

        .social-proof .proof-text {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.3;
        }

        /* FAQ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
            max-width: 850px;
        }

        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px solid rgba(255, 255, 255, 0.08);
            overflow: hidden;
        }

        .faq-question {
            width: 100%;
            text-align: left;
            padding: 20px 24px;
            font-weight: 700;
            font-size: 1rem;
            color: var(--text-white);
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            transition: all 0.25s ease;
        }

        .faq-question:hover {
            background: rgba(255, 215, 0, 0.05);
        }

        .faq-question .faq-icon {
            font-size: 1.3rem;
            color: var(--accent-gold);
            transition: transform 0.3s ease;
            flex-shrink: 0;
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding: 0 24px;
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.7;
        }

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

        /* CTA Section */
        .cta-section {
            background: linear-gradient(135deg, #0A2E1C 0%, #1A4D2E 100%);
            border-radius: var(--radius-lg);
            padding: 48px 36px;
            text-align: left;
            border: 1px solid var(--border-gold);
            position: relative;
            overflow: hidden;
        }

        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -50%;
            right: -10%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(255, 215, 0, 0.1) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-section h2 {
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: 14px;
            color: var(--accent-gold);
            position: relative;
            z-index: 2;
        }

        .cta-section p {
            font-size: 1.05rem;
            color: var(--text-mint);
            margin-bottom: 28px;
            max-width: 600px;
            position: relative;
            z-index: 2;
        }

        /* Footer */
        .site-footer {
            background: #082216;
            border-top: 1px solid var(--border-gold);
            padding: 48px 0 28px;
            margin-top: 40px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 32px;
            margin-bottom: 32px;
        }

        .footer-brand {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--accent-gold);
            line-height: 1.4;
            max-width: 300px;
        }

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

        .footer-col ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-col ul li a {
            font-size: 0.88rem;
            color: var(--text-muted);
            transition: color 0.25s ease;
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
        }

        .footer-bottom p {
            font-size: 0.82rem;
            color: var(--text-muted);
        }

        .footer-bottom .license {
            font-size: 0.8rem;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .badge-18 {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 34px;
            height: 34px;
            background: var(--accent-red);
            color: #FFF;
            font-weight: 800;
            font-size: 0.8rem;
            border-radius: 50%;
            border: 2px solid #FFF;
        }

        /* FAB */
        .fab {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: 999;
            width: 58px;
            height: 58px;
            border-radius: 50%;
            background: linear-gradient(145deg, #1A1A1A, #0D0D0D);
            border: 3px solid var(--accent-gold);
            box-shadow: 0 4px 20px rgba(255, 215, 0, 0.3);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            color: var(--accent-gold);
            opacity: 0.7;
            transition: all 0.3s ease;
            animation: float-fab 3s ease-in-out infinite;
            position: relative;
        }

        .fab::after {
            content: '';
            position: absolute;
            top: -2px;
            right: -2px;
            width: 14px;
            height: 14px;
            background: var(--accent-red);
            border-radius: 50%;
            border: 2px solid #0A2E1C;
            animation: pulse-dot 2s infinite;
        }

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

        .fab:hover {
            opacity: 1;
            transform: scale(1.1);
            box-shadow: 0 8px 32px rgba(255, 215, 0, 0.5);
        }

        .fab:active {
            transform: scale(0.95) translateY(2px);
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .hero-content {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .hero h1 {
                font-size: 2.4rem;
            }
            .content-layout {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 768px) {
            .section-title {
                font-size: 1.8rem;
            }
            .header-inner {
                flex-direction: column;
                align-items: stretch;
            }
            .main-nav {
                gap: 16px;
                justify-content: flex-start;
                overflow-x: auto;
                padding-bottom: 4px;
                -webkit-overflow-scrolling: touch;
            }
            .main-nav a {
                white-space: nowrap;
            }
            .nav-actions {
                justify-content: flex-start;
            }
            .hero {
                padding: 36px 0 56px;
            }
            .hero h1 {
                font-size: 2rem;
            }
            .promo-banner {
                flex-direction: column;
                align-items: flex-start;
            }
            .ranking-grid {
                grid-template-columns: 1fr;
            }
            .value-grid {
                grid-template-columns: 1fr;
            }
            .social-proof {
                gap: 20px;
            }
            .cta-section {
                padding: 32px 20px;
            }
            .cta-section h2 {
                font-size: 1.6rem;
            }
            .fab {
                width: 50px;
                height: 50px;
                font-size: 1.2rem;
                left: 12px;
                bottom: 80px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .section {
                padding: 48px 0;
            }
            .hero h1 {
                font-size: 1.7rem;
            }
            .hero-subtitle {
                font-size: 1rem;
            }
            .btn-primary, .btn-outline {
                width: 100%;
                justify-content: center;
                padding: 12px 20px;
                font-size: 0.95rem;
            }
            .hero-cta-group {
                flex-direction: column;
            }
            .hero-stats {
                gap: 18px;
            }
            .brand-logo {
                font-size: 1.05rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
        }

/* roulang page: article */
:root {
            --bg-deep: #0F0C20;
            --bg-ocean: #0B1A30;
            --bg-card: rgba(255,255,255,0.04);
            --accent-lime: #CCFF00;
            --accent-cyan: #00F0FF;
            --text-white: #FFFFFF;
            --text-silver: #A6ACAF;
            --border-neon: rgba(204,255,0,0.3);
            --border-cyan: rgba(0,240,255,0.3);
            --radius-md: 12px;
            --radius-lg: 20px;
            --shadow-neon: 0 0 20px rgba(0,240,255,0.25);
            --shadow-lime: 0 0 15px rgba(204,255,0,0.2);
            --spacing-sm: 0.75rem;
            --spacing-md: 1.5rem;
            --spacing-lg: 3rem;
            --spacing-xl: 5rem;
            --container-width: 1200px;
        }
        * { margin: 0; padding: 0; box-sizing: border-box; }
        html { scroll-behavior: smooth; }
        body {
            font-family: 'Be Vietnam Pro', sans-serif;
            background: linear-gradient(165deg, var(--bg-deep) 0%, var(--bg-ocean) 100%);
            color: var(--text-white);
            line-height: 1.6;
            min-height: 100vh;
            overflow-x: hidden;
        }
        a { color: inherit; text-decoration: none; transition: color 0.25s ease; }
        a:hover { color: var(--accent-cyan); }
        img { max-width: 100%; height: auto; display: block; }
        button { font-family: inherit; cursor: pointer; border: none; outline: none; }
        .container { max-width: var(--container-width); margin: 0 auto; padding: 0 1.5rem; }
        .site-header {
            position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
            background: rgba(15,12,32,0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(0,240,255,0.12);
            padding: 0.75rem 0;
            transition: all 0.3s ease;
        }
        .header-inner { display: flex; align-items: center; justify-content: space-between; gap: 1.5rem; flex-wrap: wrap; }
        .brand-logo a {
            font-size: 0.95rem; font-weight: 800; color: var(--text-white);
            letter-spacing: 0.02em; line-height: 1.3;
            display: block; max-width: 380px;
            text-shadow: 0 0 20px rgba(0,240,255,0.3);
        }
        .brand-logo a:hover { color: var(--accent-lime); }
        .main-nav { display: flex; gap: 1.25rem; align-items: center; }
        .main-nav a {
            font-size: 0.85rem; font-weight: 600; color: var(--text-silver);
            padding: 0.4rem 0.1rem; position: relative; white-space: nowrap;
            transition: color 0.25s ease;
        }
        .main-nav a::after {
            content: ''; position: absolute; bottom: -4px; left: 0; width: 0; height: 2px;
            background: linear-gradient(90deg, var(--accent-lime), var(--accent-cyan));
            transition: width 0.3s ease; border-radius: 2px;
        }
        .main-nav a:hover, .main-nav a.active { color: var(--text-white); }
        .main-nav a:hover::after, .main-nav a.active::after { width: 100%; }
        .nav-actions { display: flex; gap: 0.75rem; align-items: center; }
        .btn-login, .btn-signup {
            padding: 0.55rem 1.4rem; font-size: 0.85rem; font-weight: 700;
            border-radius: 50px; transition: all 0.3s ease; white-space: nowrap;
        }
        .btn-login {
            background: transparent; color: var(--text-white);
            border: 1.5px solid rgba(255,255,255,0.25);
        }
        .btn-login:hover { border-color: var(--accent-cyan); color: var(--accent-cyan); background: rgba(0,240,255,0.08); }
        .btn-signup {
            background: linear-gradient(135deg, var(--accent-lime), var(--accent-cyan));
            color: var(--bg-deep); box-shadow: 0 4px 20px rgba(204,255,0,0.3);
        }
        .btn-signup:hover { box-shadow: 0 6px 30px rgba(0,240,255,0.4); transform: translateY(-2px); }
        .article-hero {
            padding: 8rem 0 3rem;
            background: url('/assets/images/backpic/back-1.jpg') center/cover no-repeat;
            position: relative;
            border-bottom: 1px solid rgba(0,240,255,0.1);
        }
        .article-hero::before {
            content: ''; position: absolute; inset: 0;
            background: linear-gradient(180deg, rgba(15,12,32,0.85) 0%, rgba(11,26,48,0.9) 100%);
        }
        .article-hero .container { position: relative; z-index: 1; }
        .article-hero h1 {
            font-size: 2.5rem; font-weight: 800; line-height: 1.25;
            max-width: 850px; margin-bottom: 1.25rem;
            text-shadow: 0 0 30px rgba(0,240,255,0.3);
        }
        .article-meta {
            display: flex; gap: 1.5rem; flex-wrap: wrap; align-items: center;
            color: var(--text-silver); font-size: 0.9rem; font-weight: 500;
        }
        .article-meta .meta-item { display: flex; align-items: center; gap: 0.5rem; }
        .article-meta .meta-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--accent-cyan); }
        .article-content-wrapper { padding: 3rem 0 4rem; }
        .article-content {
            max-width: 820px; margin: 0 auto; color: #D5D8DC;
            font-size: 1.05rem; line-height: 1.7;
        }
        .article-content p { margin-bottom: 1.5rem; }
        .article-content h2 {
            font-size: 1.6rem; font-weight: 700; margin: 2.5rem 0 1rem;
            color: var(--text-white); position: relative; padding-left: 1.25rem;
        }
        .article-content h2::before {
            content: ''; position: absolute; left: 0; top: 0.35em; width: 4px; height: 1.1em;
            background: linear-gradient(180deg, var(--accent-lime), var(--accent-cyan));
            border-radius: 4px;
        }
        .article-content h3 { font-size: 1.3rem; font-weight: 700; margin: 2rem 0 0.75rem; color: var(--text-white); }
        .article-content ul, .article-content ol { margin: 0 0 1.5rem 1.5rem; }
        .article-content li { margin-bottom: 0.5rem; }
        .article-content a { color: var(--accent-cyan); border-bottom: 1px dashed rgba(0,240,255,0.4); }
        .article-content a:hover { color: var(--accent-lime); border-bottom-color: var(--accent-lime); }
        .article-content blockquote {
            border-left: 4px solid var(--accent-cyan); padding: 1rem 1.5rem;
            background: rgba(0,240,255,0.05); border-radius: 0 var(--radius-md) var(--radius-md) 0;
            margin: 1.5rem 0; font-style: italic; color: #C5E2D2;
        }
        .article-content img { border-radius: var(--radius-md); margin: 1.5rem 0; }
        .article-not-found {
            max-width: 700px; margin: 3rem auto; text-align: center;
            padding: 3rem 1.5rem; background: rgba(255,255,255,0.03);
            border: 1px solid rgba(0,240,255,0.2); border-radius: var(--radius-lg);
        }
        .article-not-found h2 { font-size: 1.5rem; font-weight: 700; margin-bottom: 1rem; }
        .article-not-found p { color: var(--text-silver); margin-bottom: 1.5rem; }
        .btn-back-home {
            display: inline-block; padding: 0.8rem 2rem; background: linear-gradient(135deg, var(--accent-lime), var(--accent-cyan));
            color: var(--bg-deep); font-weight: 700; border-radius: 50px;
            transition: all 0.3s ease; box-shadow: 0 4px 20px rgba(0,240,255,0.3);
        }
        .btn-back-home:hover { transform: translateY(-2px); box-shadow: 0 6px 30px rgba(204,255,0,0.4); }
        .article-sidebar {
            margin-top: 3rem; padding-top: 2.5rem; border-top: 1px solid rgba(0,240,255,0.15);
        }
        .article-sidebar h3 {
            font-size: 1.2rem; font-weight: 700; margin-bottom: 1.25rem;
            color: var(--text-white); display: flex; align-items: center; gap: 0.5rem;
        }
        .article-sidebar h3::before {
            content: ''; width: 8px; height: 8px; border-radius: 50%;
            background: var(--accent-cyan); box-shadow: 0 0 10px var(--accent-cyan);
        }
        .article-sidebar .category-tags { display: flex; gap: 0.75rem; flex-wrap: wrap; }
        .article-sidebar .category-tag {
            padding: 0.5rem 1.25rem; border-radius: 50px; font-size: 0.85rem; font-weight: 600;
            background: rgba(0,240,255,0.08); border: 1px solid rgba(0,240,255,0.25);
            color: var(--text-silver); transition: all 0.3s ease;
        }
        .article-sidebar .category-tag:hover { background: rgba(0,240,255,0.15); color: var(--text-white); border-color: var(--accent-cyan); }
        .site-footer {
            background: rgba(11,26,48,0.9); border-top: 1px solid rgba(0,240,255,0.15);
            padding: 3rem 0 1.5rem; margin-top: 3rem;
        }
        .footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1fr; gap: 2rem; margin-bottom: 2.5rem; }
        .footer-brand { font-size: 0.95rem; font-weight: 700; color: var(--text-white); line-height: 1.4; max-width: 300px; }
        .footer-col h4 { font-size: 0.9rem; font-weight: 700; margin-bottom: 1rem; color: var(--accent-lime); }
        .footer-col ul { list-style: none; }
        .footer-col li { margin-bottom: 0.6rem; }
        .footer-col a { color: var(--text-silver); font-size: 0.85rem; font-weight: 500; }
        .footer-col a:hover { color: var(--accent-cyan); }
        .footer-bottom {
            display: flex; justify-content: space-between; align-items: center; gap: 1rem;
            flex-wrap: wrap; padding-top: 1.5rem; border-top: 1px solid rgba(0,240,255,0.1);
        }
        .footer-bottom p { font-size: 0.8rem; color: var(--text-silver); max-width: 600px; }
        .license { display: flex; align-items: center; gap: 0.75rem; font-size: 0.8rem; color: var(--text-silver); }
        .badge-18 {
            background: #FF007F; color: #fff; font-weight: 800; font-size: 0.75rem;
            padding: 0.25rem 0.6rem; border-radius: 4px; letter-spacing: 0.05em;
            box-shadow: 0 0 15px rgba(255,0,127,0.4);
        }
        .fab-support {
            position: fixed; left: 1rem; bottom: 6rem; z-index: 900;
            width: 56px; height: 56px; border-radius: 50%;
            background: rgba(15,12,32,0.8); backdrop-filter: blur(10px);
            border: 2px solid var(--accent-cyan);
            box-shadow: 0 0 15px rgba(0,240,255,0.5), 0 4px 20px rgba(0,0,0,0.4);
            display: flex; align-items: center; justify-content: center;
            opacity: 0.6; transition: all 0.3s ease; cursor: pointer;
        }
        .fab-support svg { width: 24px; height: 24px; fill: none; stroke: var(--accent-cyan); stroke-width: 2; transition: all 0.3s ease; }
        .fab-support:hover { opacity: 1; transform: scale(1.1); box-shadow: 0 0 25px rgba(0,240,255,0.8); }
        .fab-support:hover svg { stroke: var(--accent-lime); }
        .fab-support::after {
            content: ''; position: absolute; top: 6px; right: 6px; width: 10px; height: 10px;
            background: #FF007F; border-radius: 50%; box-shadow: 0 0 10px #FF007F;
            animation: blink-notif 1.5s ease-in-out infinite;
        }
        @keyframes blink-notif { 0%, 100% { opacity: 1; } 50% { opacity: 0.3; } }
        @media (max-width: 1024px) {
            .header-inner { gap: 1rem; }
            .brand-logo a { max-width: 280px; font-size: 0.8rem; }
            .main-nav { gap: 0.9rem; }
            .main-nav a { font-size: 0.78rem; }
            .article-hero h1 { font-size: 2rem; }
            .footer-grid { grid-template-columns: 1fr 1fr; gap: 1.5rem; }
        }
        @media (max-width: 768px) {
            .header-inner { flex-wrap: wrap; justify-content: space-between; }
            .brand-logo { order: 1; flex: 1; min-width: 200px; }
            .brand-logo a { max-width: 100%; font-size: 0.75rem; }
            .nav-actions { order: 2; }
            .main-nav {
                order: 3; width: 100%; justify-content: flex-start;
                gap: 0.7rem; overflow-x: auto; padding: 0.5rem 0 0.25rem;
                scrollbar-width: thin; scrollbar-color: rgba(0,240,255,0.3) transparent;
            }
            .main-nav a { font-size: 0.75rem; white-space: nowrap; padding: 0.35rem 0; }
            .btn-login, .btn-signup { padding: 0.45rem 1rem; font-size: 0.75rem; }
            .article-hero { padding: 7rem 0 2rem; }
            .article-hero h1 { font-size: 1.6rem; }
            .article-content { font-size: 0.95rem; }
            .article-content h2 { font-size: 1.3rem; }
            .article-content h3 { font-size: 1.15rem; }
            .footer-grid { grid-template-columns: 1fr; gap: 1.5rem; }
            .footer-bottom { flex-direction: column; text-align: center; }
            .fab-support { bottom: 5rem; width: 48px; height: 48px; }
        }
        @media (max-width: 520px) {
            .container { padding: 0 1rem; }
            .brand-logo a { font-size: 0.7rem; }
            .btn-login, .btn-signup { padding: 0.4rem 0.8rem; font-size: 0.7rem; }
            .article-hero h1 { font-size: 1.35rem; }
            .article-meta { gap: 0.75rem; font-size: 0.8rem; }
            .article-content { font-size: 0.9rem; }
            .fab-support { left: 0.75rem; bottom: 4.5rem; }
        }

/* roulang page: category1 */
:root {
            --bg-primary: #08090F;
            --bg-secondary: #0D111E;
            --bg-card: #111827;
            --accent-blue: #0052FF;
            --accent-cyan: #00F0FF;
            --accent-hot-pink: #FF007F;
            --text-primary: #FFFFFF;
            --text-secondary: #CBD5E1;
            --text-muted: #94A3B8;
            --border-dark: #1E293B;
            --border-glow: rgba(0, 240, 255, 0.5);
            --gradient-neon: linear-gradient(135deg, #0052FF 0%, #00F0FF 100%);
            --gradient-hot: linear-gradient(135deg, #FF007F 0%, #FF9F00 100%);
            --shadow-card: 0 8px 24px rgba(0, 0, 0, 0.35);
            --shadow-glow: 0 0 15px rgba(0, 240, 255, 0.5);
            --shadow-glow-pink: 0 0 20px rgba(255, 0, 127, 0.4);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --spacing-xs: 0.5rem;
            --spacing-sm: 1rem;
            --spacing-md: 1.75rem;
            --spacing-lg: 3rem;
            --spacing-xl: 5rem;
            --font-body: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
            --font-display: 'Be Vietnam Pro', 'Inter', 'Segoe UI', system-ui, sans-serif;
            --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-smooth: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

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

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

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

        button {
            cursor: pointer;
            border: none;
            font-family: var(--font-body);
            transition: all var(--transition-fast);
        }

        .container {
            max-width: 1200px;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }

        /* Header / Navigation */
        .site-header {
            background: rgba(8, 9, 15, 0.95);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-dark);
            padding: 0.85rem 0;
            position: sticky;
            top: 0;
            z-index: 1050;
            transition: background var(--transition-smooth), box-shadow var(--transition-smooth);
        }

        .site-header.scrolled {
            background: rgba(8, 9, 15, 0.98);
            box-shadow: 0 4px 30px rgba(0, 0, 0, 0.5);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1.5rem;
            flex-wrap: nowrap;
        }

        .brand-logo a {
            font-family: var(--font-display);
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: -0.01em;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            white-space: nowrap;
        }

        .brand-logo a::before {
            content: "♠";
            color: var(--accent-cyan);
            font-size: 1.4rem;
            font-weight: 900;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 1.25rem;
            flex-wrap: nowrap;
        }

        .main-nav a {
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            padding: 0.5rem 0.25rem;
            position: relative;
            white-space: nowrap;
            transition: color var(--transition-fast);
        }

        .main-nav a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--gradient-neon);
            transition: width var(--transition-fast);
            border-radius: 2px;
        }

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

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

        .main-nav a.active {
            color: var(--accent-cyan);
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            flex-shrink: 0;
        }

        .btn-login {
            background: transparent;
            color: var(--text-primary);
            padding: 0.55rem 1.2rem;
            font-size: 0.85rem;
            font-weight: 600;
            border: 1px solid var(--border-dark);
            border-radius: 50px;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .btn-login:hover {
            border-color: var(--accent-cyan);
            color: var(--accent-cyan);
            background: rgba(0, 240, 255, 0.05);
        }

        .btn-signup {
            background: var(--gradient-neon);
            color: #08090F;
            padding: 0.55rem 1.5rem;
            font-size: 0.85rem;
            font-weight: 700;
            border-radius: 50px;
            box-shadow: 0 4px 15px rgba(0, 82, 255, 0.4);
            white-space: nowrap;
            transition: all var(--transition-fast);
        }

        .btn-signup:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 25px rgba(0, 82, 255, 0.6);
        }

        .btn-signup:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(0, 82, 255, 0.3);
        }

        /* Mobile nav toggle */
        .nav-toggle {
            display: none;
            background: transparent;
            color: var(--text-primary);
            font-size: 1.5rem;
            padding: 0.3rem;
            border-radius: 6px;
            flex-shrink: 0;
        }

        .nav-toggle:hover {
            color: var(--accent-cyan);
        }

        /* FAB - Cyber & Neon Style */
        .fab-neon {
            position: fixed;
            left: 1rem;
            bottom: 6rem;
            z-index: 1040;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: rgba(0, 0, 0, 0.6);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            border: 2px solid transparent;
            background-image: linear-gradient(rgba(0,0,0,0.6), rgba(0,0,0,0.6)), var(--gradient-neon);
            background-origin: border-box;
            background-clip: padding-box, border-box;
            box-shadow: var(--shadow-glow);
            display: flex;
            align-items: center;
            justify-content: center;
            opacity: 0.6;
            transition: all var(--transition-smooth);
            animation: fabBreathe 3s ease-in-out infinite;
        }

        .fab-neon:hover {
            opacity: 1;
            box-shadow: 0 0 30px rgba(0, 240, 255, 0.8);
            transform: scale(1.1);
        }

        .fab-neon:active {
            transform: scale(0.95);
            border-color: var(--accent-hot-pink);
            box-shadow: var(--shadow-glow-pink);
        }

        .fab-neon i {
            font-size: 1.5rem;
            color: var(--accent-cyan);
            transition: all var(--transition-fast);
        }

        .fab-neon:hover i {
            animation: iconFlicker 0.4s ease-in-out;
        }

        .fab-neon .notification-dot {
            position: absolute;
            top: -2px;
            right: -2px;
            width: 14px;
            height: 14px;
            background: var(--accent-hot-pink);
            border-radius: 50%;
            border: 2px solid var(--bg-primary);
            animation: dotBlink 1.5s ease-in-out infinite;
        }

        @keyframes fabBreathe {
            0%, 100% { opacity: 0.6; transform: translateY(0); }
            50% { opacity: 0.85; transform: translateY(-4px); }
        }

        @keyframes iconFlicker {
            0%, 100% { opacity: 1; }
            25% { opacity: 0.3; }
            50% { opacity: 0.9; }
            75% { opacity: 0.5; }
        }

        @keyframes dotBlink {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.3; }
        }

        /* Hero Section */
        .hero-section {
            background: linear-gradient(180deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
            position: relative;
            padding: 4rem 0 3rem;
            overflow: hidden;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background-image: url('/assets/images/backpic/back-1.jpg');
            background-size: cover;
            background-position: center;
            opacity: 0.08;
            pointer-events: none;
        }

        .hero-content {
            position: relative;
            z-index: 2;
            display: flex;
            align-items: center;
            gap: 2.5rem;
        }

        .hero-text {
            flex: 1;
            text-align: left;
        }

        .hero-badge {
            display: inline-block;
            background: rgba(0, 240, 255, 0.1);
            border: 1px solid rgba(0, 240, 255, 0.3);
            color: var(--accent-cyan);
            padding: 0.4rem 1.2rem;
            font-size: 0.8rem;
            font-weight: 600;
            border-radius: 50px;
            letter-spacing: 0.03em;
            margin-bottom: 1.25rem;
        }

        .hero-text h1 {
            font-family: var(--font-display);
            font-size: 2.5rem;
            font-weight: 800;
            line-height: 1.2;
            letter-spacing: -0.02em;
            margin-bottom: 1rem;
            background: linear-gradient(135deg, #FFFFFF 30%, #CBD5E1 70%, #00F0FF 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero-text p {
            font-size: 1.1rem;
            color: var(--text-secondary);
            line-height: 1.6;
            margin-bottom: 1.5rem;
            max-width: 560px;
        }

        .hero-stats {
            display: flex;
            gap: 2rem;
            flex-wrap: wrap;
        }

        .stat-item {
            text-align: left;
        }

        .stat-item .stat-number {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--accent-cyan);
            display: block;
        }

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

        .hero-visual {
            flex: 0 0 360px;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .countdown-ring {
            width: 220px;
            height: 220px;
            border-radius: 50%;
            border: 3px solid var(--border-dark);
            position: relative;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-direction: column;
            background: rgba(13, 17, 30, 0.6);
            box-shadow: var(--shadow-card);
        }

        .countdown-ring::before {
            content: '';
            position: absolute;
            top: -3px;
            left: -3px;
            right: -3px;
            bottom: -3px;
            border-radius: 50%;
            border: 3px solid transparent;
            border-top-color: var(--accent-cyan);
            border-right-color: var(--accent-blue);
            animation: ringSpin 8s linear infinite;
        }

        .countdown-ring .countdown-number {
            font-size: 3rem;
            font-weight: 900;
            color: var(--text-primary);
            line-height: 1;
        }

        .countdown-ring .countdown-unit {
            font-size: 0.85rem;
            color: var(--text-muted);
            text-transform: uppercase;
            letter-spacing: 0.1em;
        }

        .countdown-ring .countdown-label {
            font-size: 0.7rem;
            color: var(--accent-cyan);
            letter-spacing: 0.05em;
            margin-top: 0.25rem;
        }

        @keyframes ringSpin {
            from { transform: rotate(0deg); }
            to { transform: rotate(360deg); }
        }

        .hero-dots {
            display: flex;
            gap: 0.5rem;
            margin-top: 1.25rem;
            justify-content: center;
        }

        .hero-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--border-dark);
            transition: all var(--transition-fast);
            cursor: pointer;
        }

        .hero-dot.active {
            background: var(--accent-cyan);
            width: 24px;
            border-radius: 4px;
        }

        .btn-book {
            display: inline-block;
            background: var(--gradient-neon);
            color: #08090F;
            padding: 0.85rem 2.2rem;
            font-size: 1rem;
            font-weight: 700;
            border-radius: 50px;
            box-shadow: 0 6px 20px rgba(0, 82, 255, 0.4);
            transition: all var(--transition-fast);
            text-align: center;
        }

        .btn-book:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 30px rgba(0, 82, 255, 0.6);
            color: #08090F;
        }

        .btn-book:active {
            transform: translateY(0);
            box-shadow: 0 3px 10px rgba(0, 82, 255, 0.3);
        }

        /* Section Styling */
        .section-block {
            padding: var(--spacing-xl) 0;
            position: relative;
        }

        .section-block:nth-child(even) {
            background: var(--bg-secondary);
        }

        .section-title {
            font-family: var(--font-display);
            font-size: 1.8rem;
            font-weight: 700;
            letter-spacing: -0.01em;
            margin-bottom: 0.75rem;
            color: var(--text-primary);
            text-align: left;
        }

        .section-subtitle {
            font-size: 1.05rem;
            color: var(--text-secondary);
            max-width: 650px;
            line-height: 1.6;
            margin-bottom: 2.5rem;
            text-align: left;
        }

        /* Rating Cards */
        .rating-card {
            background: var(--bg-card);
            border: 1px solid var(--border-dark);
            border-radius: var(--radius-lg);
            padding: 1.75rem;
            margin-bottom: 1.5rem;
            transition: all var(--transition-smooth);
            position: relative;
            overflow: hidden;
        }

        .rating-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 4px;
            height: 100%;
            background: var(--gradient-neon);
            opacity: 0;
            transition: opacity var(--transition-fast);
        }

        .rating-card:hover {
            border-color: rgba(0, 240, 255, 0.4);
            box-shadow: var(--shadow-glow);
            transform: translateY(-2px);
        }

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

        .rating-card .rank-badge {
            display: inline-block;
            background: var(--gradient-neon);
            color: #08090F;
            font-weight: 800;
            font-size: 0.8rem;
            padding: 0.25rem 0.75rem;
            border-radius: 50px;
            margin-bottom: 0.75rem;
        }

        .rating-card h3 {
            font-size: 1.3rem;
            font-weight: 700;
            margin-bottom: 0.5rem;
            color: var(--text-primary);
        }

        .rating-card .rating-score {
            font-size: 2rem;
            font-weight: 900;
            color: var(--accent-cyan);
            margin-bottom: 0.75rem;
        }

        .rating-card .rating-score small {
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-muted);
        }

        .rating-card p {
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.6;
            margin-bottom: 1rem;
        }

        .rating-card .feature-list {
            list-style: none;
            padding: 0;
            margin: 0 0 1.25rem;
            display: flex;
            flex-wrap: wrap;
            gap: 0.5rem;
        }

        .rating-card .feature-list li {
            background: rgba(0, 240, 255, 0.05);
            border: 1px solid rgba(0, 240, 255, 0.2);
            color: var(--text-secondary);
            font-size: 0.75rem;
            padding: 0.3rem 0.75rem;
            border-radius: 50px;
        }

        /* Criteria Section */
        .criteria-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 1.5rem;
        }

        .criteria-item {
            background: var(--bg-card);
            border: 1px solid var(--border-dark);
            border-radius: var(--radius-md);
            padding: 1.5rem;
            transition: all var(--transition-smooth);
        }

        .criteria-item:hover {
            border-color: rgba(0, 82, 255, 0.4);
            box-shadow: var(--shadow-card);
        }

        .criteria-item .criteria-icon {
            font-size: 2rem;
            color: var(--accent-blue);
            margin-bottom: 0.75rem;
        }

        .criteria-item h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 0.5rem;
            color: var(--text-primary);
        }

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

        /* Comparison Table */
        .comparison-table {
            width: 100%;
            border-collapse: collapse;
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-dark);
        }

        .comparison-table thead {
            background: var(--bg-secondary);
        }

        .comparison-table th {
            padding: 1rem 1.25rem;
            font-size: 0.85rem;
            font-weight: 700;
            color: var(--accent-cyan);
            text-align: left;
            border-bottom: 1px solid var(--border-dark);
            text-transform: uppercase;
            letter-spacing: 0.03em;
        }

        .comparison-table td {
            padding: 1rem 1.25rem;
            font-size: 0.9rem;
            color: var(--text-secondary);
            border-bottom: 1px solid var(--border-dark);
        }

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

        .comparison-table tbody tr:hover {
            background: rgba(0, 240, 255, 0.03);
        }

        .comparison-table .table-rank {
            color: var(--accent-cyan);
            font-weight: 700;
        }

        /* FAQ Section */
        .faq-list {
            max-width: 800px;
        }

        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-dark);
            border-radius: var(--radius-md);
            margin-bottom: 0.75rem;
            overflow: hidden;
            transition: all var(--transition-fast);
        }

        .faq-item:hover {
            border-color: rgba(0, 240, 255, 0.3);
        }

        .faq-question {
            padding: 1.25rem 1.5rem;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            font-weight: 600;
            color: var(--text-primary);
            font-size: 1rem;
            transition: all var(--transition-fast);
        }

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

        .faq-question .faq-toggle {
            font-size: 1.25rem;
            color: var(--accent-cyan);
            transition: transform var(--transition-fast);
            flex-shrink: 0;
        }

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

        .faq-answer {
            padding: 0 1.5rem 1.25rem;
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.6;
            display: none;
        }

        .faq-item.open .faq-answer {
            display: block;
            animation: fadeIn 0.3s ease-in-out;
        }

        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(-8px); }
            to { opacity: 1; transform: translateY(0); }
        }

        /* CTA Section */
        .cta-section {
            background: var(--bg-secondary);
            border: 1px solid var(--border-dark);
            border-radius: var(--radius-xl);
            padding: 3rem 2.5rem;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: radial-gradient(circle at center, rgba(0, 240, 255, 0.05) 0%, transparent 60%);
            pointer-events: none;
        }

        .cta-section h2 {
            font-size: 1.8rem;
            font-weight: 700;
            margin-bottom: 0.75rem;
            color: var(--text-primary);
            position: relative;
            z-index: 1;
        }

        .cta-section p {
            color: var(--text-secondary);
            font-size: 1.05rem;
            margin-bottom: 1.5rem;
            position: relative;
            z-index: 1;
        }

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

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 2.5rem;
            margin-bottom: 2.5rem;
        }

        .footer-brand {
            font-family: var(--font-display);
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--text-primary);
            line-height: 1.4;
        }

        .footer-col h4 {
            font-size: 0.9rem;
            font-weight: 700;
            color: var(--accent-cyan);
            margin-bottom: 1rem;
            text-transform: uppercase;
            letter-spacing: 0.05em;
        }

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

        .footer-col ul li {
            margin-bottom: 0.6rem;
        }

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

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

        .footer-bottom {
            border-top: 1px solid var(--border-dark);
            padding-top: 1.5rem;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 1rem;
        }

        .footer-bottom p {
            color: var(--text-muted);
            font-size: 0.85rem;
            margin: 0;
        }

        .license {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            color: var(--text-muted);
            font-size: 0.85rem;
        }

        .badge-18 {
            display: inline-block;
            background: #D32F2F;
            color: #fff;
            font-weight: 800;
            font-size: 0.7rem;
            padding: 0.25rem 0.5rem;
            border-radius: 4px;
            border: 1px solid #FF5252;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .hero-text h1 {
                font-size: 2rem;
            }

            .hero-visual {
                flex-basis: 280px;
            }

            .countdown-ring {
                width: 180px;
                height: 180px;
            }

            .countdown-ring .countdown-number {
                font-size: 2.5rem;
            }

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

        @media (max-width: 768px) {
            .header-inner {
                flex-wrap: wrap;
                gap: 0.75rem;
            }

            .brand-logo a {
                font-size: 0.95rem;
            }

            .main-nav {
                order: 3;
                width: 100%;
                overflow-x: auto;
                gap: 1rem;
                padding-bottom: 0.25rem;
                -webkit-overflow-scrolling: touch;
            }

            .main-nav a {
                font-size: 0.8rem;
                white-space: nowrap;
            }

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

            .btn-login {
                padding: 0.45rem 0.9rem;
                font-size: 0.8rem;
            }

            .btn-signup {
                padding: 0.45rem 1.1rem;
                font-size: 0.8rem;
            }

            .hero-content {
                flex-direction: column;
                gap: 1.5rem;
            }

            .hero-visual {
                flex-basis: auto;
                width: 100%;
            }

            .hero-text h1 {
                font-size: 1.6rem;
            }

            .hero-text p {
                font-size: 1rem;
            }

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

            .comparison-table {
                display: block;
                overflow-x: auto;
                white-space: nowrap;
            }

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

            .cta-section h2 {
                font-size: 1.4rem;
            }

            .section-title {
                font-size: 1.4rem;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 1.5rem;
            }

            .fab-neon {
                width: 48px;
                height: 48px;
                left: 0.75rem;
                bottom: 5rem;
            }

            .fab-neon i {
                font-size: 1.25rem;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding-left: 1rem;
                padding-right: 1rem;
            }

            .hero-text h1 {
                font-size: 1.4rem;
            }

            .hero-stats {
                gap: 1rem;
            }

            .stat-item .stat-number {
                font-size: 1.4rem;
            }

            .btn-book {
                padding: 0.7rem 1.5rem;
                font-size: 0.9rem;
            }

            .section-block {
                padding: 2.5rem 0;
            }

            .rating-card {
                padding: 1.25rem;
            }

            .rating-card h3 {
                font-size: 1.1rem;
            }

            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                text-align: left;
            }
        }

/* roulang page: category2 */
:root {
            --bg-primary: #0A0E13;
            --bg-secondary: #101820;
            --bg-tertiary: #15202B;
            --bg-card: #0E1621;
            --accent-gold: #C9A227;
            --accent-gold-light: #E5C158;
            --accent-cyan: #2DD4BF;
            --accent-red: #D94F4F;
            --text-primary: #F2F5F7;
            --text-secondary: #B8C4CE;
            --text-muted: #7A8B99;
            --border-subtle: rgba(201, 162, 39, 0.2);
            --border-strong: rgba(201, 162, 39, 0.55);
            --shadow-card: 0 8px 24px rgba(0,0,0,0.4);
            --shadow-glow: 0 0 22px rgba(201, 162, 39, 0.25);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --font-sans: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
            --transition: all 0.25s ease;
        }

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

        html {
            scroll-behavior: smooth;
        }

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

        a {
            color: var(--accent-gold-light);
            text-decoration: none;
            transition: var(--transition);
        }

        a:hover {
            color: #FFF3C4;
        }

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

        button {
            font-family: inherit;
        }

        .container {
            max-width: 1240px;
            padding-left: 24px;
            padding-right: 24px;
        }

        /* Header / Navigation */
        .site-header {
            background: rgba(10, 14, 19, 0.96);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-subtle);
            position: sticky;
            top: 0;
            z-index: 1000;
            padding: 14px 0;
        }

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

        .brand-logo a {
            font-weight: 800;
            font-size: 1.35rem;
            color: var(--accent-gold-light);
            letter-spacing: -0.02em;
            line-height: 1.2;
            display: inline-block;
            transition: var(--transition);
        }

        .brand-logo a:hover {
            color: #FFF3C4;
            text-shadow: 0 0 16px rgba(201, 162, 39, 0.4);
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 22px;
            flex-wrap: wrap;
        }

        .main-nav a {
            color: var(--text-secondary);
            font-weight: 500;
            font-size: 0.98rem;
            padding: 6px 4px;
            position: relative;
            white-space: nowrap;
        }

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

        .main-nav a:hover,
        .main-nav a.active {
            color: #FFFFFF;
        }

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

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

        .btn-login,
        .btn-signup {
            border: none;
            border-radius: 30px;
            font-weight: 600;
            font-size: 0.95rem;
            padding: 9px 20px;
            cursor: pointer;
            transition: var(--transition);
            white-space: nowrap;
        }

        .btn-login {
            background: transparent;
            color: var(--text-primary);
            border: 1px solid var(--border-strong);
        }

        .btn-login:hover {
            background: rgba(201, 162, 39, 0.1);
            border-color: var(--accent-gold-light);
            color: #FFF;
        }

        .btn-signup {
            background: linear-gradient(135deg, var(--accent-gold) 0%, #B68A1C 100%);
            color: #0A0E13;
            box-shadow: 0 4px 16px rgba(201, 162, 39, 0.35);
        }

        .btn-signup:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 22px rgba(201, 162, 39, 0.5);
            color: #0A0E13;
        }

        /* Hero Section */
        .hero-section {
            background: linear-gradient(145deg, #0A0E13 0%, #101820 60%, #0B151E 100%);
            border-bottom: 1px solid var(--border-subtle);
            padding: 72px 0 60px;
            position: relative;
            overflow: hidden;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            top: -40%;
            right: -10%;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(201, 162, 39, 0.08) 0%, transparent 70%);
            pointer-events: none;
        }

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

        .hero-copy {
            flex: 1;
        }

        .hero-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(201, 162, 39, 0.12);
            color: var(--accent-gold-light);
            border: 1px solid var(--border-subtle);
            padding: 6px 16px;
            border-radius: 30px;
            font-size: 0.85rem;
            font-weight: 600;
            letter-spacing: 0.02em;
            margin-bottom: 22px;
        }

        .hero-copy h1 {
            font-size: 3rem;
            font-weight: 800;
            line-height: 1.2;
            letter-spacing: -0.025em;
            color: #FFFFFF;
            margin-bottom: 18px;
        }

        .hero-copy h1 .highlight {
            color: var(--accent-gold-light);
            border-bottom: 2px solid var(--accent-gold);
        }

        .hero-desc {
            font-size: 1.15rem;
            color: var(--text-secondary);
            max-width: 620px;
            margin-bottom: 28px;
        }

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

        .btn-gold {
            background: linear-gradient(135deg, var(--accent-gold) 0%, #B68A1C 100%);
            color: #0A0E13;
            border: none;
            padding: 13px 32px;
            border-radius: 30px;
            font-weight: 700;
            font-size: 1rem;
            cursor: pointer;
            transition: var(--transition);
            box-shadow: 0 4px 16px rgba(201, 162, 39, 0.35);
        }

        .btn-gold:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 26px rgba(201, 162, 39, 0.5);
            color: #0A0E13;
        }

        .btn-outline-light {
            background: transparent;
            color: var(--text-primary);
            border: 1px solid var(--border-strong);
            padding: 13px 28px;
            border-radius: 30px;
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            transition: var(--transition);
        }

        .btn-outline-light:hover {
            background: rgba(201, 162, 39, 0.1);
            color: #FFF;
            border-color: var(--accent-gold-light);
        }

        .hero-visual {
            flex: 0 0 420px;
            max-width: 420px;
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 28px;
            box-shadow: var(--shadow-card);
            position: relative;
        }

        .hero-visual .visual-img {
            width: 100%;
            border-radius: var(--radius-md);
            overflow: hidden;
            margin-bottom: 20px;
        }

        .hero-visual .visual-img img {
            width: 100%;
            height: 220px;
            object-fit: cover;
            border-radius: var(--radius-md);
        }

        .hero-stats {
            display: flex;
            justify-content: space-between;
            gap: 12px;
        }

        .hero-stat {
            text-align: center;
        }

        .hero-stat .stat-num {
            font-size: 1.7rem;
            font-weight: 800;
            color: var(--accent-gold-light);
            display: block;
        }

        .hero-stat .stat-label {
            font-size: 0.8rem;
            color: var(--text-muted);
            text-transform: uppercase;
            letter-spacing: 0.04em;
        }

        /* Section General */
        .section {
            padding: 68px 0;
        }

        .section-alt {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-subtle);
            border-bottom: 1px solid var(--border-subtle);
        }

        .section-heading {
            margin-bottom: 40px;
            text-align: left;
        }

        .section-heading h2 {
            font-size: 2.1rem;
            font-weight: 800;
            letter-spacing: -0.02em;
            color: #FFFFFF;
            margin-bottom: 10px;
        }

        .section-heading p {
            color: var(--text-secondary);
            font-size: 1.05rem;
            max-width: 700px;
        }

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

        .strategy-item {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            padding: 28px;
            transition: var(--transition);
            display: flex;
            gap: 18px;
            align-items: flex-start;
        }

        .strategy-item:hover {
            border-color: var(--accent-gold);
            box-shadow: var(--shadow-glow);
            transform: translateY(-3px);
        }

        .strategy-icon {
            flex-shrink: 0;
            width: 48px;
            height: 48px;
            background: rgba(201, 162, 39, 0.1);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-gold-light);
            font-size: 1.3rem;
        }

        .strategy-content h3 {
            font-size: 1.2rem;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 8px;
        }

        .strategy-content p {
            color: var(--text-secondary);
            font-size: 0.95rem;
            margin-bottom: 0;
        }

        /* Steps Flow */
        .flow-steps {
            display: flex;
            gap: 0;
            align-items: stretch;
            flex-wrap: wrap;
        }

        .flow-step {
            flex: 1 1 200px;
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            padding: 26px 20px;
            margin-right: -1px;
            position: relative;
            transition: var(--transition);
        }

        .flow-step:first-child {
            border-radius: var(--radius-md) 0 0 var(--radius-md);
        }

        .flow-step:last-child {
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
            margin-right: 0;
        }

        .flow-step:hover {
            border-color: var(--accent-gold);
            background: #111C28;
            z-index: 2;
        }

        .step-num {
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--accent-gold);
            line-height: 1;
            margin-bottom: 12px;
        }

        .flow-step h4 {
            font-size: 1.1rem;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 8px;
        }

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

        /* Comparison Table */
        .compare-table {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-card);
        }

        .compare-table .table {
            margin-bottom: 0;
            color: var(--text-secondary);
        }

        .compare-table .table thead th {
            background: var(--bg-tertiary);
            color: var(--text-primary);
            font-weight: 700;
            border-bottom: 1px solid var(--border-subtle);
            padding: 16px 18px;
            font-size: 0.95rem;
        }

        .compare-table .table tbody td {
            padding: 16px 18px;
            border-bottom: 1px solid rgba(255,255,255,0.04);
            vertical-align: middle;
            font-size: 0.92rem;
        }

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

        .compare-table .table .highlight-row {
            background: rgba(201, 162, 39, 0.08);
        }

        .badge-recommend {
            background: var(--accent-gold);
            color: #0A0E13;
            padding: 3px 10px;
            border-radius: 20px;
            font-size: 0.75rem;
            font-weight: 700;
        }

        /* FAQ */
        .accordion-item {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md) !important;
            margin-bottom: 14px;
            overflow: hidden;
        }

        .accordion-button {
            background: transparent;
            color: #FFFFFF;
            font-weight: 600;
            padding: 20px 24px;
            font-size: 1rem;
            box-shadow: none !important;
        }

        .accordion-button:not(.collapsed) {
            background: rgba(201, 162, 39, 0.08);
            color: var(--accent-gold-light);
        }

        .accordion-button::after {
            filter: invert(1) sepia(1) saturate(3) hue-rotate(5deg);
        }

        .accordion-body {
            color: var(--text-secondary);
            padding: 18px 24px;
            font-size: 0.95rem;
        }

        /* CTA Section */
        .cta-section {
            background: linear-gradient(135deg, #101820 0%, #0B151E 100%);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 48px 40px;
            text-align: left;
        }

        .cta-section h2 {
            font-size: 1.9rem;
            font-weight: 800;
            color: #FFFFFF;
            margin-bottom: 12px;
        }

        .cta-section p {
            color: var(--text-secondary);
            font-size: 1.05rem;
            max-width: 600px;
            margin-bottom: 28px;
        }

        /* Footer */
        .site-footer {
            background: #080C10;
            border-top: 1px solid var(--border-subtle);
            padding: 48px 0 24px;
            margin-top: 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }

        .footer-brand {
            font-weight: 800;
            font-size: 1.25rem;
            color: var(--accent-gold-light);
            line-height: 1.4;
        }

        .footer-col h4 {
            color: #FFFFFF;
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 14px;
        }

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

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

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

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

        .footer-bottom {
            border-top: 1px solid rgba(201, 162, 39, 0.15);
            padding-top: 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 16px;
        }

        .footer-bottom p {
            color: var(--text-muted);
            font-size: 0.85rem;
            margin-bottom: 0;
        }

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

        .badge-18 {
            background: var(--accent-red);
            color: #FFF;
            padding: 3px 10px;
            border-radius: 20px;
            font-weight: 700;
            font-size: 0.8rem;
        }

        /* FAB */
        .fab-support {
            position: fixed;
            left: 24px;
            bottom: 96px;
            z-index: 1050;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: #0A0E13;
            border: 2px solid var(--accent-gold);
            color: var(--accent-gold-light);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            cursor: pointer;
            box-shadow: 0 4px 20px rgba(201, 162, 39, 0.3);
            transition: var(--transition);
            animation: fabFloat 3s ease-in-out infinite;
        }

        .fab-support:hover {
            transform: scale(1.1);
            opacity: 1;
            box-shadow: 0 8px 26px rgba(201, 162, 39, 0.5);
            animation: none;
        }

        @keyframes fabFloat {
            0%, 100% { transform: translateY(0); opacity: 0.7; }
            50% { transform: translateY(-8px); opacity: 1; }
        }

        .fab-support .notification-dot {
            position: absolute;
            top: -2px;
            right: -2px;
            width: 14px;
            height: 14px;
            background: var(--accent-red);
            border-radius: 50%;
            border: 2px solid #0A0E13;
            animation: blinkDot 1.6s ease-in-out infinite;
        }

        @keyframes blinkDot {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.3; }
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .hero-grid {
                flex-direction: column;
                align-items: stretch;
            }
            .hero-visual {
                flex: 1 1 auto;
                max-width: 100%;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .strategy-grid {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 768px) {
            .header-inner {
                flex-direction: column;
                align-items: flex-start;
                gap: 12px;
            }
            .main-nav {
                gap: 14px;
                width: 100%;
                overflow-x: auto;
                flex-wrap: nowrap;
                padding-bottom: 6px;
            }
            .nav-actions {
                width: 100%;
                justify-content: flex-start;
            }
            .hero-copy h1 {
                font-size: 2.2rem;
            }
            .section {
                padding: 44px 0;
            }
            .flow-steps {
                flex-direction: column;
            }
            .flow-step {
                margin-right: 0;
                border-radius: var(--radius-md) !important;
                margin-bottom: 10px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
            .cta-section {
                padding: 32px 20px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .hero-copy h1 {
                font-size: 1.8rem;
            }
            .hero-visual {
                padding: 18px;
            }
            .hero-stats {
                flex-direction: column;
                gap: 12px;
            }
            .btn-gold,
            .btn-outline-light {
                width: 100%;
                text-align: center;
            }
            .hero-cta-group {
                flex-direction: column;
            }
            .compare-table .table {
                font-size: 0.8rem;
            }
            .compare-table .table thead th,
            .compare-table .table tbody td {
                padding: 10px 12px;
            }
        }

/* roulang page: category3 */
:root {
            --bg-primary: #121212;
            --bg-secondary: #1C1C1E;
            --bg-tertiary: #1A1A1A;
            --accent-gold: #C5A059;
            --accent-amber: #FFBF00;
            --accent-bright: #D4AC0D;
            --text-primary: #F5F5F7;
            --text-muted: #A6ACAF;
            --text-gold: #D4AC0D;
            --border-subtle: rgba(197, 160, 89, 0.25);
            --border-strong: rgba(197, 160, 89, 0.6);
            --shadow-soft: 0 8px 24px rgba(0, 0, 0, 0.4);
            --shadow-hover: 0 16px 40px rgba(0, 0, 0, 0.6);
            --radius-sm: 8px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --radius-xl: 32px;
            --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            --transition-base: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --container-max: 1200px;
            --spacing-section: 72px;
            --spacing-card: 24px;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-primary);
            background-color: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.65;
            font-size: 16px;
            overflow-x: hidden;
        }

        a {
            color: var(--accent-gold);
            text-decoration: none;
            transition: var(--transition-base);
        }

        a:hover {
            color: var(--accent-amber);
        }

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

        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            background: none;
            font-size: 1rem;
            transition: var(--transition-base);
        }

        button:focus-visible,
        a:focus-visible {
            outline: 3px solid var(--accent-gold);
            outline-offset: 3px;
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
            width: 100%;
        }

        /* Header & Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background-color: rgba(18, 18, 18, 0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-subtle);
            transition: var(--transition-base);
        }

        .site-header.scrolled {
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
            padding: 16px 24px;
            max-width: var(--container-max);
            margin: 0 auto;
        }

        .brand-logo a {
            font-weight: 800;
            font-size: 1.35rem;
            color: var(--text-primary);
            letter-spacing: -0.02em;
            line-height: 1.3;
            display: inline-block;
            max-width: 360px;
        }

        .brand-logo a:hover {
            color: var(--accent-amber);
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }

        .main-nav a {
            color: var(--text-muted);
            font-weight: 500;
            font-size: 0.95rem;
            padding: 8px 16px;
            border-radius: 50px;
            transition: var(--transition-base);
            white-space: nowrap;
        }

        .main-nav a:hover {
            color: var(--text-primary);
            background-color: rgba(197, 160, 89, 0.1);
        }

        .main-nav a.active {
            color: var(--bg-primary);
            background-color: var(--accent-gold);
            font-weight: 700;
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .btn-login {
            padding: 10px 20px;
            border-radius: 50px;
            background: transparent;
            color: var(--text-primary);
            font-weight: 600;
            font-size: 0.9rem;
            border: 1px solid var(--border-subtle);
        }

        .btn-login:hover {
            border-color: var(--accent-gold);
            color: var(--accent-gold);
            background-color: rgba(197, 160, 89, 0.08);
        }

        .btn-signup {
            padding: 10px 22px;
            border-radius: 50px;
            background: linear-gradient(135deg, var(--accent-gold), var(--accent-amber));
            color: #121212;
            font-weight: 700;
            font-size: 0.9rem;
            box-shadow: 0 4px 16px rgba(197, 160, 89, 0.35);
        }

        .btn-signup:hover {
            box-shadow: 0 8px 24px rgba(197, 160, 89, 0.55);
            transform: translateY(-2px);
            color: #121212;
        }

        /* Hero Section */
        .hero-section {
            background: linear-gradient(165deg, #121212 0%, #1C1C1E 40%, #1A1A1A 100%);
            padding: 80px 0 64px;
            position: relative;
            overflow: hidden;
            border-bottom: 1px solid var(--border-subtle);
        }

        .hero-section::before {
            content: '';
            position: absolute;
            top: -20%;
            right: -10%;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(197, 160, 89, 0.15) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero-inner {
            display: flex;
            align-items: center;
            gap: 48px;
            flex-wrap: wrap;
            position: relative;
            z-index: 1;
        }

        .hero-content {
            flex: 1 1 55%;
            min-width: 300px;
        }

        .hero-content .eyebrow {
            display: inline-block;
            padding: 8px 18px;
            background: rgba(197, 160, 89, 0.15);
            border: 1px solid var(--border-subtle);
            border-radius: 50px;
            color: var(--text-gold);
            font-weight: 600;
            font-size: 0.85rem;
            letter-spacing: 0.05em;
            text-transform: uppercase;
            margin-bottom: 20px;
        }

        .hero-content h1 {
            font-size: 3.2rem;
            font-weight: 900;
            line-height: 1.15;
            letter-spacing: -0.03em;
            margin-bottom: 20px;
            color: var(--text-primary);
        }

        .hero-content h1 .highlight {
            background: linear-gradient(135deg, var(--accent-gold), var(--accent-amber));
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .hero-content .hero-desc {
            font-size: 1.15rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 32px;
            max-width: 580px;
        }

        .hero-cta {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            margin-bottom: 28px;
        }

        .btn-primary {
            padding: 14px 32px;
            border-radius: 50px;
            background: linear-gradient(135deg, var(--accent-gold), var(--accent-amber));
            color: #121212;
            font-weight: 700;
            font-size: 1.05rem;
            box-shadow: 0 8px 28px rgba(197, 160, 89, 0.4);
            transition: var(--transition-base);
        }

        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 14px 36px rgba(197, 160, 89, 0.6);
            color: #121212;
        }

        .btn-secondary {
            padding: 14px 28px;
            border-radius: 50px;
            background: transparent;
            border: 2px solid var(--border-strong);
            color: var(--text-primary);
            font-weight: 600;
            font-size: 1rem;
        }

        .btn-secondary:hover {
            border-color: var(--accent-amber);
            background-color: rgba(197, 160, 89, 0.08);
            color: var(--accent-amber);
        }

        .trust-strip {
            display: flex;
            align-items: center;
            gap: 20px;
            flex-wrap: wrap;
            color: var(--text-muted);
            font-size: 0.9rem;
            font-weight: 500;
        }

        .trust-strip span {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .trust-strip .dot {
            width: 8px;
            height: 8px;
            background-color: #2ecc71;
            border-radius: 50%;
            display: inline-block;
        }

        .hero-visual {
            flex: 1 1 40%;
            min-width: 280px;
            display: flex;
            justify-content: center;
            align-items: center;
        }

        .hero-visual img {
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-hover);
            border: 1px solid var(--border-subtle);
            max-height: 420px;
            object-fit: cover;
            width: 100%;
        }

        /* Sections Common */
        .section {
            padding: var(--spacing-section) 0;
        }

        .section-alt {
            background-color: var(--bg-secondary);
            border-top: 1px solid var(--border-subtle);
            border-bottom: 1px solid var(--border-subtle);
        }

        .section-title {
            font-size: 2.2rem;
            font-weight: 800;
            letter-spacing: -0.02em;
            margin-bottom: 12px;
            line-height: 1.25;
        }

        .section-subtitle {
            font-size: 1.1rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 40px;
            max-width: 680px;
        }

        .section-header {
            margin-bottom: 40px;
        }

        .section-header.left {
            text-align: left;
        }

        .section-header.center {
            text-align: center;
            margin-left: auto;
            margin-right: auto;
        }

        .section-header.center .section-subtitle {
            margin-left: auto;
            margin-right: auto;
        }

        /* Process Steps */
        .process-steps {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
            gap: 28px;
            margin-top: 20px;
        }

        .process-step {
            background: var(--bg-secondary);
            padding: 28px 24px;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-subtle);
            transition: var(--transition-base);
        }

        .process-step:hover {
            border-color: var(--accent-gold);
            box-shadow: var(--shadow-soft);
            transform: translateY(-4px);
        }

        .step-number {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent-gold), var(--accent-amber));
            color: #121212;
            font-weight: 800;
            font-size: 1.3rem;
            margin-bottom: 16px;
        }

        .process-step h3 {
            font-size: 1.25rem;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--text-primary);
        }

        .process-step p {
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.7;
        }

        /* Payment Methods */
        .payment-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 20px;
            margin-top: 20px;
        }

        .payment-card {
            background: var(--bg-secondary);
            padding: 24px 20px;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-subtle);
            text-align: center;
            transition: var(--transition-base);
        }

        .payment-card:hover {
            border-color: var(--accent-amber);
            transform: translateY(-4px);
            box-shadow: var(--shadow-soft);
        }

        .payment-icon {
            font-size: 2.4rem;
            margin-bottom: 12px;
            color: var(--accent-gold);
        }

        .payment-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text-primary);
        }

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

        /* Tips List */
        .tips-list {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .tips-list li {
            display: flex;
            align-items: flex-start;
            gap: 14px;
            background: var(--bg-secondary);
            padding: 18px 20px;
            border-radius: var(--radius-md);
            border-left: 4px solid var(--accent-gold);
            transition: var(--transition-base);
        }

        .tips-list li:hover {
            border-left-color: var(--accent-amber);
            background: var(--bg-tertiary);
        }

        .tips-list .tip-icon {
            font-size: 1.4rem;
            color: var(--accent-gold);
            flex-shrink: 0;
            margin-top: 2px;
        }

        .tips-list .tip-text {
            color: var(--text-muted);
            font-size: 0.98rem;
            line-height: 1.7;
        }

        .tips-list .tip-text strong {
            color: var(--text-primary);
            font-weight: 700;
        }

        /* FAQ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
            margin-top: 20px;
        }

        .faq-item {
            background: var(--bg-secondary);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-subtle);
            overflow: hidden;
            transition: var(--transition-base);
        }

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

        .faq-question {
            padding: 20px 24px;
            font-weight: 700;
            font-size: 1.05rem;
            color: var(--text-primary);
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            background: none;
            width: 100%;
            text-align: left;
        }

        .faq-question .faq-toggle {
            font-size: 1.4rem;
            color: var(--accent-gold);
            transition: transform 0.3s ease;
            flex-shrink: 0;
            margin-left: 16px;
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1);
            color: var(--text-muted);
            padding: 0 24px;
            font-size: 0.98rem;
            line-height: 1.7;
        }

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

        /* CTA Section */
        .cta-section {
            background: linear-gradient(135deg, #1C1C1E 0%, #121212 100%);
            border-radius: var(--radius-xl);
            padding: 56px 40px;
            text-align: center;
            border: 1px solid var(--border-subtle);
            margin-top: 20px;
        }

        .cta-section h2 {
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: 16px;
            color: var(--text-primary);
        }

        .cta-section p {
            color: var(--text-muted);
            font-size: 1.1rem;
            max-width: 600px;
            margin: 0 auto 32px;
            line-height: 1.7;
        }

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

        /* Footer */
        .site-footer {
            background-color: var(--bg-secondary);
            border-top: 1px solid var(--border-subtle);
            padding: 56px 0 24px;
            margin-top: 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 40px;
        }

        .footer-brand {
            font-weight: 800;
            font-size: 1.1rem;
            color: var(--text-primary);
            line-height: 1.5;
            max-width: 320px;
        }

        .footer-col h4 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-gold);
            margin-bottom: 16px;
            letter-spacing: 0.02em;
        }

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

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

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

        .footer-col ul li a:hover {
            color: var(--accent-gold);
            padding-left: 4px;
        }

        .footer-bottom {
            border-top: 1px solid var(--border-subtle);
            padding-top: 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 16px;
            color: var(--text-muted);
            font-size: 0.85rem;
        }

        .footer-bottom .license {
            display: flex;
            align-items: center;
            gap: 10px;
            color: var(--text-gold);
            font-weight: 600;
        }

        .badge-18 {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: #D32F2F;
            color: #fff;
            font-weight: 800;
            font-size: 0.8rem;
            border: 2px solid var(--accent-gold);
        }

        /* FAB */
        .fab {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: 90;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: linear-gradient(135deg, #1C1C1E, #121212);
            border: 2px solid var(--accent-gold);
            box-shadow: 0 4px 20px rgba(197, 160, 89, 0.3);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
            color: var(--accent-gold);
            cursor: pointer;
            opacity: 0.7;
            transition: var(--transition-base);
            animation: float 3s ease-in-out infinite;
        }

        .fab:hover {
            opacity: 1;
            transform: scale(1.1);
            box-shadow: 0 8px 28px rgba(197, 160, 89, 0.5);
        }

        .fab:active {
            transform: scale(0.95);
        }

        .fab .notification-dot {
            position: absolute;
            top: 2px;
            right: 2px;
            width: 14px;
            height: 14px;
            background: #D32F2F;
            border-radius: 50%;
            border: 2px solid #121212;
            animation: blink 1.5s ease-in-out infinite;
        }

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

        @keyframes blink {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.3; }
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .hero-content h1 {
                font-size: 2.5rem;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .section-title {
                font-size: 1.8rem;
            }
        }

        @media (max-width: 768px) {
            .header-inner {
                flex-direction: column;
                align-items: stretch;
                gap: 12px;
            }
            .brand-logo a {
                max-width: 100%;
                font-size: 1.1rem;
            }
            .main-nav {
                justify-content: flex-start;
                gap: 4px;
                overflow-x: auto;
                padding-bottom: 4px;
                -webkit-overflow-scrolling: touch;
            }
            .main-nav a {
                padding: 6px 12px;
                font-size: 0.85rem;
                white-space: nowrap;
            }
            .nav-actions {
                justify-content: flex-start;
            }
            .hero-section {
                padding: 40px 0 40px;
            }
            .hero-inner {
                flex-direction: column;
                gap: 32px;
            }
            .hero-content h1 {
                font-size: 2rem;
            }
            .hero-content .hero-desc {
                font-size: 1rem;
            }
            .section {
                padding: 48px 0;
            }
            .process-steps {
                grid-template-columns: 1fr;
            }
            .payment-grid {
                grid-template-columns: 1fr 1fr;
            }
            .cta-section {
                padding: 40px 24px;
            }
            .cta-section h2 {
                font-size: 1.6rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                text-align: left;
            }
            .fab {
                width: 48px;
                height: 48px;
                font-size: 1.3rem;
                left: 12px;
                bottom: 80px;
            }
        }

        @media (max-width: 520px) {
            .hero-content h1 {
                font-size: 1.7rem;
            }
            .hero-cta {
                flex-direction: column;
            }
            .btn-primary, .btn-secondary {
                width: 100%;
                text-align: center;
            }
            .payment-grid {
                grid-template-columns: 1fr;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .container {
                padding: 0 16px;
            }
            .header-inner {
                padding: 12px 16px;
            }
        }