/* roulang page: index */
:root {
            --bg-deep: #0D1020;
            --bg-primary: #131834;
            --bg-card: rgba(20, 26, 55, 0.65);
            --accent-blue: #00D4FF;
            --accent-cyan: #00F0FF;
            --accent-purple: #7B61FF;
            --text-primary: #F0F4FF;
            --text-secondary: #A6B4D0;
            --text-muted: #6A7A9A;
            --border-glow: rgba(0, 212, 255, 0.3);
            --border-card: rgba(0, 240, 255, 0.15);
            --shadow-glow: 0 0 25px rgba(0, 212, 255, 0.25);
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.35);
            --gradient-primary: linear-gradient(135deg, #00D4FF 0%, #7B61FF 100%);
            --gradient-dark: linear-gradient(180deg, #0D1020 0%, #131834 100%);
            --radius-sm: 12px;
            --radius-md: 18px;
            --radius-lg: 24px;
            --radius-xl: 32px;
            --transition-smooth: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
        }

        * {
            box-sizing: border-box;
        }

        body {
            font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
            background: var(--bg-deep);
            color: var(--text-primary);
            line-height: 1.6;
            margin: 0;
            padding: 0;
            overflow-x: hidden;
        }

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

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

        button {
            cursor: pointer;
            font-family: inherit;
            transition: var(--transition-smooth);
        }

        .container {
            max-width: 1260px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* Navigation */
        .navbar {
            background: rgba(13, 16, 32, 0.78);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border-glow);
            padding: 14px 0;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1050;
            transition: var(--transition-smooth);
        }

        .navbar .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .navbar-brand {
            font-weight: 700;
            font-size: 1.3rem;
            letter-spacing: -0.3px;
            background: var(--gradient-primary);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

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

        .nav-links a {
            font-weight: 500;
            font-size: 0.95rem;
            color: var(--text-secondary);
            position: relative;
            padding: 6px 0;
        }

        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--gradient-primary);
            transition: width 0.25s ease;
        }

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

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

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

        .btn-login {
            background: transparent;
            border: 1px solid var(--border-glow);
            color: var(--text-primary);
            padding: 8px 20px;
            border-radius: 30px;
            font-weight: 600;
            font-size: 0.9rem;
        }

        .btn-login:hover {
            border-color: var(--accent-cyan);
            box-shadow: 0 0 14px rgba(0, 240, 255, 0.25);
        }

        .btn-signup {
            background: var(--gradient-primary);
            border: none;
            color: #0D1020;
            padding: 8px 24px;
            border-radius: 30px;
            font-weight: 700;
            font-size: 0.9rem;
        }

        .btn-signup:hover {
            box-shadow: var(--shadow-glow);
            transform: translateY(-1px);
        }

        /* Hero Section */
        .hero {
            padding: 140px 0 80px;
            position: relative;
            background: radial-gradient(ellipse at 60% 40%, rgba(0, 212, 255, 0.12) 0%, transparent 60%);
        }

        .hero .container {
            display: flex;
            flex-direction: column;
            align-items: center;
            text-align: center;
        }

        .hero-badge {
            background: rgba(0, 212, 255, 0.12);
            border: 1px solid var(--border-glow);
            padding: 8px 22px;
            border-radius: 40px;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--accent-cyan);
            margin-bottom: 28px;
        }

        .hero h1 {
            font-size: 3.1rem;
            font-weight: 800;
            line-height: 1.25;
            margin-bottom: 24px;
            max-width: 800px;
            background: linear-gradient(180deg, #F0F4FF 0%, #CCE3FF 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero p {
            font-size: 1.1rem;
            color: var(--text-secondary);
            max-width: 680px;
            margin-bottom: 32px;
            line-height: 1.7;
        }

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

        .btn-cta-primary {
            background: var(--gradient-primary);
            border: none;
            color: #0D1020;
            padding: 14px 34px;
            border-radius: 40px;
            font-weight: 700;
            font-size: 1rem;
            box-shadow: 0 4px 18px rgba(0, 212, 255, 0.25);
        }

        .btn-cta-primary:hover {
            box-shadow: 0 8px 28px rgba(0, 212, 255, 0.4);
            transform: translateY(-2px);
        }

        .btn-cta-secondary {
            background: transparent;
            border: 1px solid var(--border-glow);
            color: var(--text-primary);
            padding: 14px 30px;
            border-radius: 40px;
            font-weight: 600;
            font-size: 1rem;
        }

        .btn-cta-secondary:hover {
            border-color: var(--accent-cyan);
            background: rgba(0, 212, 255, 0.06);
        }

        /* Sections */
        section {
            padding: 80px 0;
        }

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

        .section-header h2 {
            font-weight: 700;
            font-size: 2rem;
            color: var(--text-primary);
            margin-bottom: 12px;
        }

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

        /* Feature Cards Trio */
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .feature-card {
            background: var(--bg-card);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid var(--border-card);
            border-radius: var(--radius-lg);
            padding: 36px 28px;
            transition: var(--transition-smooth);
        }

        .feature-card:hover {
            border-color: var(--accent-cyan);
            box-shadow: var(--shadow-glow);
            transform: translateY(-5px);
        }

        .feature-icon {
            width: 52px;
            height: 52px;
            background: rgba(0, 212, 255, 0.1);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            color: var(--accent-cyan);
            margin-bottom: 20px;
        }

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

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

        /* Scenario */
        .scenario-wrapper {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
        }

        .scenario-image {
            border-radius: var(--radius-xl);
            overflow: hidden;
            border: 1px solid var(--border-card);
        }

        .scenario-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .scenario-content h2 {
            font-weight: 700;
            font-size: 2rem;
            margin-bottom: 18px;
        }

        .scenario-content p {
            color: var(--text-secondary);
            font-size: 1rem;
            line-height: 1.7;
            margin-bottom: 24px;
        }

        /* Trust / Social Proof */
        .trust-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            text-align: center;
        }

        .trust-item {
            background: var(--bg-card);
            backdrop-filter: blur(10px);
            border: 1px solid var(--border-card);
            border-radius: var(--radius-md);
            padding: 28px 18px;
        }

        .trust-number {
            font-size: 2.4rem;
            font-weight: 800;
            background: var(--gradient-primary);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

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

        /* Pricing Table */
        .pricing-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .pricing-card {
            background: var(--bg-card);
            border: 1px solid var(--border-card);
            border-radius: var(--radius-xl);
            padding: 36px 28px;
            text-align: center;
            transition: var(--transition-smooth);
            position: relative;
        }

        .pricing-card.featured {
            border-color: var(--accent-cyan);
            box-shadow: var(--shadow-glow);
            transform: scale(1.03);
        }

        .pricing-badge {
            position: absolute;
            top: -14px;
            right: 20px;
            background: var(--gradient-primary);
            color: #0D1020;
            padding: 4px 16px;
            border-radius: 20px;
            font-weight: 700;
            font-size: 0.8rem;
        }

        .pricing-card h3 {
            font-weight: 700;
            font-size: 1.4rem;
            margin-bottom: 16px;
        }

        .pricing-card .price {
            font-size: 2.5rem;
            font-weight: 800;
            color: var(--accent-cyan);
            margin-bottom: 16px;
        }

        .pricing-card ul {
            list-style: none;
            padding: 0;
            margin-bottom: 24px;
            text-align: left;
        }

        .pricing-card ul li {
            padding: 6px 0;
            color: var(--text-secondary);
            font-size: 0.9rem;
        }

        .pricing-card ul li i {
            color: var(--accent-cyan);
            margin-right: 8px;
        }

        /* Hot Topics */
        .topics-grid {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
        }

        .topic-tag {
            background: rgba(0, 212, 255, 0.08);
            border: 1px solid rgba(0, 212, 255, 0.2);
            padding: 10px 22px;
            border-radius: 30px;
            font-weight: 500;
            color: var(--text-primary);
            font-size: 0.9rem;
            transition: var(--transition-smooth);
        }

        .topic-tag:hover {
            background: rgba(0, 212, 255, 0.2);
            border-color: var(--accent-cyan);
            color: white;
        }

        /* News / CMS List */
        .news-layout {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
        }

        .news-list {
            list-style: none;
            padding: 0;
        }

        .news-list li {
            padding: 16px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }

        .news-list li a {
            font-weight: 600;
            font-size: 1rem;
            color: var(--text-primary);
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
        }

        .news-list li a:hover {
            color: var(--accent-cyan);
        }

        .news-meta {
            font-size: 0.8rem;
            color: var(--text-muted);
            white-space: nowrap;
        }

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

        .news-sidebar h4 {
            font-weight: 700;
            margin-bottom: 16px;
        }

        /* FAQ */
        .faq-list {
            max-width: 760px;
        }

        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-card);
            border-radius: var(--radius-md);
            margin-bottom: 14px;
            padding: 20px 24px;
            transition: var(--transition-smooth);
        }

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

        .faq-item h5 {
            font-weight: 700;
            margin-bottom: 8px;
        }

        .faq-item p {
            color: var(--text-secondary);
            margin: 0;
        }

        /* CTA Banner */
        .cta-section {
            background: var(--gradient-dark);
            border: 1px solid var(--border-glow);
            border-radius: var(--radius-xl);
            padding: 60px 40px;
            text-align: center;
        }

        .cta-section h2 {
            font-weight: 800;
            font-size: 2.2rem;
            margin-bottom: 16px;
        }

        /* Countdown */
        .countdown-bar {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 24px;
            background: rgba(0, 0, 0, 0.4);
            border: 1px solid var(--border-glow);
            border-radius: 60px;
            padding: 16px 30px;
            margin-bottom: 28px;
        }

        .countdown-item {
            font-weight: 700;
            font-size: 1.8rem;
            color: var(--accent-cyan);
        }

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

        /* FAB */
        .fab-floating {
            position: fixed;
            left: 22px;
            bottom: 100px;
            width: 56px;
            height: 56px;
            background: rgba(13, 16, 32, 0.8);
            backdrop-filter: blur(14px);
            border: 2px solid transparent;
            background-image: linear-gradient(rgba(13, 16, 32, 0.8), rgba(13, 16, 32, 0.8)), linear-gradient(135deg, #00D4FF, #7B61FF);
            background-origin: border-box;
            background-clip: content-box, border-box;
            border-radius: 20px;
            color: var(--accent-cyan);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            z-index: 999;
            box-shadow: 0 0 20px rgba(0, 240, 255, 0.4);
            transition: var(--transition-smooth);
            animation: floatPulse 3s infinite;
        }

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

        .fab-floating:hover {
            box-shadow: 0 0 35px rgba(0, 240, 255, 0.7);
            transform: scale(1.08);
        }

        /* Footer */
        footer {
            background: #0A0D18;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding: 50px 0 30px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            padding-bottom: 30px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
        }

        .footer-brand {
            font-weight: 800;
            font-size: 1.3rem;
            background: var(--gradient-primary);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            margin-bottom: 12px;
        }

        .footer-col h5 {
            font-weight: 700;
            margin-bottom: 14px;
            color: var(--text-primary);
        }

        .footer-col a {
            display: block;
            color: var(--text-secondary);
            font-size: 0.9rem;
            margin-bottom: 8px;
        }

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

        .footer-bottom {
            text-align: center;
            padding-top: 20px;
            color: var(--text-muted);
            font-size: 0.8rem;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .feature-grid { grid-template-columns: 1fr 1fr; }
            .scenario-wrapper { grid-template-columns: 1fr; }
            .pricing-grid { grid-template-columns: 1fr; }
            .news-layout { grid-template-columns: 1fr; }
            .footer-grid { grid-template-columns: 1fr 1fr; }
        }

        @media (max-width: 768px) {
            .hero h1 { font-size: 2.1rem; }
            .feature-grid { grid-template-columns: 1fr; }
            .trust-grid { grid-template-columns: 1fr 1fr; }
            .nav-links { display: none; }
            .navbar .container { flex-wrap: wrap; }
            .countdown-bar { flex-wrap: wrap; gap: 12px; }
        }

        @media (max-width: 520px) {
            .hero { padding: 120px 0 40px; }
            section { padding: 50px 0; }
            .hero-cta-group { flex-direction: column; width: 100%; }
            .btn-cta-primary, .btn-cta-secondary { width: 100%; }
        }

/* roulang page: category1 */
:root {
            --deep-blue: #0A0E27;
            --mid-blue: #131842;
            --glass-bg: rgba(19, 24, 66, 0.6);
            --glass-border: rgba(0, 240, 255, 0.25);
            --neon-cyan: #00F0FF;
            --neon-blue: #0052FF;
            --electric-blue: #1E5AFF;
            --text-primary: #FFFFFF;
            --text-secondary: #CBD5E1;
            --text-muted: #8892B0;
            --accent-glow: 0 0 15px rgba(0, 240, 255, 0.5);
            --card-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        body {
            font-family: 'Segoe UI', 'Inter', system-ui, -apple-system, sans-serif;
            background: var(--deep-blue);
            color: var(--text-primary);
            line-height: 1.6;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
        }

        body::before {
            content: '';
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: radial-gradient(ellipse at 20% 20%, rgba(0, 82, 255, 0.08) 0%, transparent 60%),
                        radial-gradient(ellipse at 80% 60%, rgba(0, 240, 255, 0.06) 0%, transparent 60%),
                        linear-gradient(180deg, var(--deep-blue) 0%, var(--mid-blue) 100%);
            z-index: -1;
            pointer-events: none;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* Navbar */
        .navbar {
            background: rgba(10, 14, 39, 0.85);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(0, 240, 255, 0.15);
            padding: 12px 0;
            position: sticky;
            top: 0;
            z-index: 1050;
            transition: var(--transition);
        }

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

        .navbar-brand {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--text-primary);
            text-decoration: none;
            letter-spacing: -0.3px;
            background: linear-gradient(135deg, var(--neon-cyan), var(--neon-blue));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

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

        .nav-links a {
            color: var(--text-secondary);
            text-decoration: none;
            font-weight: 500;
            font-size: 0.95rem;
            position: relative;
            padding: 4px 0;
            transition: var(--transition);
        }

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

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

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

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

        .btn-login {
            background: transparent;
            border: 1px solid rgba(0, 240, 255, 0.5);
            color: var(--neon-cyan);
            padding: 8px 20px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.9rem;
            cursor: pointer;
            transition: var(--transition);
        }

        .btn-login:hover {
            background: rgba(0, 240, 255, 0.1);
            border-color: var(--neon-cyan);
            box-shadow: var(--accent-glow);
        }

        .btn-signup {
            background: linear-gradient(135deg, var(--neon-cyan), var(--neon-blue));
            border: none;
            color: #0A0E27;
            padding: 8px 20px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 0.9rem;
            cursor: pointer;
            transition: var(--transition);
            box-shadow: 0 4px 15px rgba(0, 82, 255, 0.4);
        }

        .btn-signup:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 25px rgba(0, 240, 255, 0.5);
        }

        /* Hero */
        .hero-section {
            padding: 80px 0 60px;
            position: relative;
        }

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

        .hero-content h1 {
            font-size: 2.8rem;
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 20px;
            background: linear-gradient(135deg, var(--text-primary), var(--neon-cyan));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero-content p {
            font-size: 1.1rem;
            color: var(--text-secondary);
            margin-bottom: 30px;
            max-width: 540px;
        }

        .hero-stats {
            display: flex;
            gap: 30px;
            margin-bottom: 30px;
        }

        .stat-item {
            background: var(--glass-bg);
            backdrop-filter: blur(10px);
            border: 1px solid var(--glass-border);
            border-radius: 16px;
            padding: 20px 24px;
            text-align: center;
            min-width: 100px;
        }

        .stat-number {
            font-size: 2rem;
            font-weight: 800;
            color: var(--neon-cyan);
            display: block;
        }

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

        .hero-cta {
            display: flex;
            gap: 15px;
        }

        .btn-primary-glow {
            background: linear-gradient(135deg, var(--neon-cyan), var(--neon-blue));
            border: none;
            color: #0A0E27;
            padding: 14px 36px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 1.05rem;
            cursor: pointer;
            transition: var(--transition);
            box-shadow: 0 6px 25px rgba(0, 240, 255, 0.4);
            text-decoration: none;
            display: inline-block;
        }

        .btn-primary-glow:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 35px rgba(0, 240, 255, 0.6);
            color: #0A0E27;
        }

        .btn-outline-glow {
            background: transparent;
            border: 2px solid var(--neon-cyan);
            color: var(--neon-cyan);
            padding: 14px 36px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 1.05rem;
            cursor: pointer;
            transition: var(--transition);
            text-decoration: none;
            display: inline-block;
        }

        .btn-outline-glow:hover {
            background: rgba(0, 240, 255, 0.1);
            box-shadow: var(--accent-glow);
            color: var(--neon-cyan);
        }

        .hero-visual {
            background: var(--glass-bg);
            backdrop-filter: blur(16px);
            border: 1px solid var(--glass-border);
            border-radius: 24px;
            padding: 30px;
            box-shadow: var(--card-shadow);
        }

        .rank-list {
            list-style: none;
            padding: 0;
        }

        .rank-item {
            display: flex;
            align-items: center;
            gap: 15px;
            padding: 16px 0;
            border-bottom: 1px solid rgba(255,255,255,0.05);
        }

        .rank-badge {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--neon-cyan), var(--neon-blue));
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 0.9rem;
            color: #0A0E27;
        }

        .rank-info strong {
            display: block;
            font-size: 1rem;
        }

        .rank-score {
            margin-left: auto;
            color: var(--neon-cyan);
            font-weight: 700;
        }

        /* Sections */
        section {
            padding: 60px 0;
        }

        .section-label {
            display: inline-block;
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            padding: 6px 18px;
            border-radius: 50px;
            font-size: 0.85rem;
            color: var(--neon-cyan);
            font-weight: 600;
            margin-bottom: 16px;
        }

        h2 {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 20px;
            line-height: 1.3;
        }

        h3 {
            font-size: 1.4rem;
            font-weight: 700;
            margin-bottom: 12px;
        }

        /* Criteria Section */
        .criteria-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            margin-top: 40px;
        }

        .criteria-card {
            background: var(--glass-bg);
            backdrop-filter: blur(10px);
            border: 1px solid var(--glass-border);
            border-radius: 20px;
            padding: 30px;
            transition: var(--transition);
            text-align: left;
        }

        .criteria-card:hover {
            border-color: var(--neon-cyan);
            box-shadow: 0 4px 20px rgba(0, 240, 255, 0.2);
            transform: translateY(-4px);
        }

        .criteria-icon {
            font-size: 2.2rem;
            color: var(--neon-cyan);
            margin-bottom: 16px;
        }

        .criteria-card h3 {
            font-size: 1.2rem;
            margin-bottom: 10px;
        }

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

        /* Process Section */
        .process-timeline {
            position: relative;
            padding-left: 40px;
            margin-top: 30px;
        }

        .process-timeline::before {
            content: '';
            position: absolute;
            left: 15px;
            top: 0;
            bottom: 0;
            width: 2px;
            background: linear-gradient(180deg, var(--neon-cyan), var(--neon-blue), transparent);
        }

        .timeline-item {
            position: relative;
            margin-bottom: 36px;
            text-align: left;
        }

        .timeline-item::before {
            content: '';
            position: absolute;
            left: -33px;
            top: 6px;
            width: 14px;
            height: 14px;
            border-radius: 50%;
            background: var(--neon-cyan);
            box-shadow: 0 0 12px var(--neon-cyan);
        }

        .timeline-item h4 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 6px;
        }

        .timeline-item p {
            color: var(--text-secondary);
            margin: 0;
        }

        /* Table Comparison */
        .comparison-table {
            width: 100%;
            border-collapse: separate;
            border-spacing: 0;
            margin-top: 30px;
            background: var(--glass-bg);
            backdrop-filter: blur(10px);
            border-radius: 16px;
            overflow: hidden;
            box-shadow: var(--card-shadow);
        }

        .comparison-table th {
            background: rgba(0, 240, 255, 0.08);
            padding: 16px 20px;
            font-weight: 700;
            color: var(--neon-cyan);
            text-align: left;
            border-bottom: 1px solid var(--glass-border);
        }

        .comparison-table td {
            padding: 16px 20px;
            border-bottom: 1px solid rgba(255,255,255,0.04);
            color: var(--text-secondary);
        }

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

        .badge-yes {
            background: rgba(0, 200, 100, 0.2);
            color: #00C864;
            padding: 4px 12px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.85rem;
        }

        /* FAQ */
        .accordion-custom .accordion-item {
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            border-radius: 12px !important;
            margin-bottom: 12px;
            overflow: hidden;
        }

        .accordion-custom .accordion-button {
            background: transparent;
            color: var(--text-primary);
            font-weight: 600;
            font-size: 1rem;
            box-shadow: none;
            padding: 20px;
        }

        .accordion-custom .accordion-button:not(.collapsed) {
            color: var(--neon-cyan);
            background: rgba(0, 240, 255, 0.05);
        }

        .accordion-custom .accordion-button::after {
            filter: brightness(0) invert(1);
        }

        .accordion-custom .accordion-body {
            color: var(--text-secondary);
            padding: 20px;
            background: rgba(0,0,0,0.15);
        }

        /* Footer */
        footer {
            background: rgba(10, 14, 39, 0.95);
            border-top: 1px solid rgba(0, 240, 255, 0.15);
            padding: 50px 0 20px;
            margin-top: 40px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 30px;
            margin-bottom: 30px;
        }

        .footer-brand {
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 10px;
        }

        .footer-col h5 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 14px;
            color: var(--neon-cyan);
        }

        .footer-col a {
            display: block;
            color: var(--text-secondary);
            text-decoration: none;
            margin-bottom: 8px;
            font-size: 0.9rem;
            transition: var(--transition);
        }

        .footer-col a:hover {
            color: var(--neon-cyan);
        }

        .footer-bottom {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid rgba(255,255,255,0.06);
            color: var(--text-muted);
            font-size: 0.85rem;
        }

        /* FAB */
        .fab-floating {
            position: fixed;
            left: 24px;
            bottom: 96px;
            z-index: 1100;
            width: 58px;
            height: 58px;
            border-radius: 50px;
            background: rgba(10, 14, 39, 0.8);
            backdrop-filter: blur(16px);
            border: 2px solid transparent;
            background-clip: padding-box;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            box-shadow: 0 0 20px rgba(0, 240, 255, 0.4);
            transition: var(--transition);
            animation: floatPulse 2.5s ease-in-out infinite;
        }

        .fab-floating::before {
            content: '';
            position: absolute;
            inset: -3px;
            border-radius: 50px;
            background: linear-gradient(135deg, #CCFF00, #00F0FF);
            z-index: -1;
            opacity: 0.8;
            animation: rotateGlow 4s linear infinite;
        }

        @keyframes rotateGlow {
            0% { filter: hue-rotate(0deg); }
            100% { filter: hue-rotate(360deg); }
        }

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

        .fab-floating:hover {
            transform: scale(1.15);
            box-shadow: 0 0 35px rgba(0, 240, 255, 0.7);
        }

        .fab-floating i {
            font-size: 1.6rem;
            color: #00F0FF;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .hero-grid {
                grid-template-columns: 1fr;
                gap: 30px;
            }
            .criteria-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            .navbar .container {
                flex-direction: column;
                gap: 12px;
            }
            .nav-links {
                flex-wrap: wrap;
                justify-content: center;
                gap: 16px;
            }
            .nav-actions {
                flex-wrap: wrap;
                justify-content: center;
            }
            .hero-content h1 {
                font-size: 2rem;
            }
            .hero-stats {
                flex-wrap: wrap;
                gap: 15px;
            }
            .criteria-grid {
                grid-template-columns: 1fr;
            }
            .process-timeline {
                padding-left: 30px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                text-align: center;
            }
            .fab-floating {
                left: 16px;
                bottom: 80px;
                width: 48px;
                height: 48px;
            }
        }

/* roulang page: article */
:root {
            --bg-primary: #08090F;
            --bg-secondary: #0D111E;
            --bg-card: rgba(13, 17, 30, 0.7);
            --accent-blue: #0052FF;
            --accent-cyan: #00F0FF;
            --text-primary: #FFFFFF;
            --text-secondary: #CBD5E1;
            --text-muted: #64748B;
            --border-color: rgba(0, 240, 255, 0.15);
            --border-glow: rgba(0, 240, 255, 0.5);
            --glass-bg: rgba(13, 17, 30, 0.6);
            --glass-border: rgba(0, 240, 255, 0.2);
            --shadow-neon: 0 0 15px rgba(0, 240, 255, 0.3);
            --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.4);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
        }

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

        body {
            font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
            background: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }

        body::before {
            content: '';
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: radial-gradient(ellipse at 30% 20%, rgba(0, 82, 255, 0.08) 0%, transparent 60%),
                radial-gradient(ellipse at 70% 60%, rgba(0, 240, 255, 0.05) 0%, transparent 60%);
            pointer-events: none;
            z-index: 0;
        }

        .container {
            max-width: 1140px;
            margin: 0 auto;
            padding: 0 20px;
            position: relative;
            z-index: 1;
        }

        /* Header & Navigation */
        header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: rgba(8, 9, 15, 0.85);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(0, 240, 255, 0.15);
            transition: all 0.3s ease;
        }

        .navbar {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 14px 0;
            flex-wrap: wrap;
        }

        .navbar-brand {
            font-size: 1.25rem;
            font-weight: 700;
            color: #FFFFFF;
            text-decoration: none;
            letter-spacing: -0.3px;
            background: linear-gradient(135deg, #FFFFFF 0%, #00F0FF 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            transition: opacity 0.3s ease;
            white-space: nowrap;
        }

        .navbar-brand:hover {
            opacity: 0.85;
        }

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

        .nav-links a {
            color: var(--text-secondary);
            text-decoration: none;
            font-size: 0.9rem;
            font-weight: 500;
            padding: 8px 14px;
            border-radius: 20px;
            transition: all 0.25s ease;
            white-space: nowrap;
            position: relative;
        }

        .nav-links a:hover,
        .nav-links a.active {
            color: #FFFFFF;
            background: rgba(0, 240, 255, 0.1);
            box-shadow: 0 0 12px rgba(0, 240, 255, 0.15);
        }

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

        .btn-login {
            background: transparent;
            color: var(--text-primary);
            border: 1px solid rgba(255, 255, 255, 0.3);
            padding: 8px 18px;
            border-radius: 20px;
            font-weight: 600;
            font-size: 0.85rem;
            cursor: pointer;
            transition: all 0.3s ease;
            white-space: nowrap;
        }

        .btn-login:hover {
            border-color: #00F0FF;
            background: rgba(0, 240, 255, 0.1);
            box-shadow: 0 0 10px rgba(0, 240, 255, 0.25);
        }

        .btn-signup {
            background: linear-gradient(135deg, #0052FF, #00F0FF);
            color: #FFFFFF;
            border: none;
            padding: 9px 20px;
            border-radius: 20px;
            font-weight: 700;
            font-size: 0.85rem;
            cursor: pointer;
            transition: all 0.3s ease;
            box-shadow: 0 0 15px rgba(0, 82, 255, 0.4);
            white-space: nowrap;
            letter-spacing: 0.3px;
        }

        .btn-signup:hover {
            box-shadow: 0 0 25px rgba(0, 240, 255, 0.6);
            transform: translateY(-1px);
        }

        /* Mobile Nav Toggle */
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            color: #FFFFFF;
            font-size: 1.6rem;
            cursor: pointer;
            padding: 4px 8px;
        }

        /* Main Content */
        main {
            padding-top: 90px;
            min-height: 70vh;
        }

        .article-container {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 36px;
            padding: 40px 0 60px;
            align-items: start;
        }

        .article-main {
            min-width: 0;
        }

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

        .article-category-badge {
            display: inline-block;
            background: rgba(0, 82, 255, 0.2);
            color: #00F0FF;
            font-size: 0.8rem;
            font-weight: 600;
            padding: 5px 14px;
            border-radius: 14px;
            text-transform: uppercase;
            letter-spacing: 0.5px;
            margin-bottom: 14px;
            border: 1px solid rgba(0, 240, 255, 0.3);
        }

        .article-header h1 {
            font-size: 2.2rem;
            font-weight: 800;
            line-height: 1.3;
            color: #FFFFFF;
            margin-bottom: 14px;
            letter-spacing: -0.4px;
        }

        .article-meta {
            display: flex;
            gap: 18px;
            color: var(--text-muted);
            font-size: 0.88rem;
            flex-wrap: wrap;
            align-items: center;
        }

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

        .article-featured-img {
            width: 100%;
            border-radius: var(--radius-lg);
            margin-bottom: 30px;
            object-fit: cover;
            max-height: 420px;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-card);
        }

        .article-body {
            font-size: 1.05rem;
            line-height: 1.75;
            color: var(--text-secondary);
        }

        .article-body h2 {
            font-size: 1.55rem;
            font-weight: 700;
            color: #FFFFFF;
            margin: 32px 0 14px;
            border-left: 3px solid #00F0FF;
            padding-left: 14px;
        }

        .article-body h3 {
            font-size: 1.25rem;
            font-weight: 600;
            color: #E2E8F0;
            margin: 24px 0 10px;
        }

        .article-body p {
            margin-bottom: 16px;
        }

        .article-body ul,
        .article-body ol {
            margin: 14px 0 20px 20px;
        }

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

        .article-body strong {
            color: #FFFFFF;
            font-weight: 600;
        }

        .article-body a {
            color: #00F0FF;
            text-decoration: underline;
            text-underline-offset: 3px;
        }

        .article-body blockquote {
            background: var(--glass-bg);
            border-left: 3px solid #0052FF;
            padding: 16px 20px;
            border-radius: var(--radius-sm);
            margin: 20px 0;
            font-style: italic;
            color: #CBD5E1;
        }

        /* Sidebar */
        .article-sidebar {
            position: sticky;
            top: 100px;
        }

        .sidebar-card {
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-lg);
            padding: 22px;
            margin-bottom: 20px;
            backdrop-filter: blur(10px);
        }

        .sidebar-card h4 {
            font-size: 1.05rem;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 14px;
            border-bottom: 1px solid var(--border-color);
            padding-bottom: 10px;
        }

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

        .sidebar-card ul li {
            margin-bottom: 10px;
        }

        .sidebar-card ul li a {
            color: var(--text-secondary);
            text-decoration: none;
            font-size: 0.9rem;
            transition: color 0.2s;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .sidebar-card ul li a:hover {
            color: #00F0FF;
        }

        .sidebar-card ul li a i {
            font-size: 0.7rem;
            color: #0052FF;
        }

        .cta-mini-card {
            background: linear-gradient(135deg, rgba(0, 82, 255, 0.25), rgba(0, 240, 255, 0.1));
            border: 1px solid var(--border-glow);
            border-radius: var(--radius-lg);
            padding: 22px;
            text-align: center;
        }

        .cta-mini-card p {
            color: #FFFFFF;
            font-weight: 600;
            margin-bottom: 14px;
            font-size: 0.95rem;
        }

        .btn-cta-sidebar {
            background: linear-gradient(135deg, #0052FF, #00F0FF);
            color: #FFFFFF;
            border: none;
            padding: 10px 20px;
            border-radius: 20px;
            font-weight: 700;
            font-size: 0.85rem;
            cursor: pointer;
            width: 100%;
            box-shadow: 0 0 15px rgba(0, 240, 255, 0.35);
            transition: all 0.3s;
        }

        .btn-cta-sidebar:hover {
            box-shadow: 0 0 25px rgba(0, 240, 255, 0.6);
        }

        .not-found-message {
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-lg);
            padding: 40px;
            text-align: center;
            color: var(--text-secondary);
        }

        .not-found-message i {
            font-size: 3rem;
            color: #00F0FF;
            margin-bottom: 16px;
        }

        .not-found-message h2 {
            color: #FFFFFF;
            margin-bottom: 10px;
        }

        .btn-back-home {
            display: inline-block;
            background: linear-gradient(135deg, #0052FF, #00F0FF);
            color: #FFFFFF;
            padding: 10px 24px;
            border-radius: 20px;
            text-decoration: none;
            font-weight: 600;
            margin-top: 16px;
            transition: all 0.3s;
        }

        .btn-back-home:hover {
            box-shadow: 0 0 20px rgba(0, 240, 255, 0.5);
            color: #FFFFFF;
        }

        /* Footer */
        footer {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-color);
            padding: 50px 0 24px;
            margin-top: 40px;
            position: relative;
            z-index: 1;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 30px;
            margin-bottom: 30px;
        }

        .footer-brand {
            font-size: 1.2rem;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 10px;
            background: linear-gradient(135deg, #FFFFFF, #00F0FF);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .footer-col h5 {
            color: #FFFFFF;
            font-weight: 600;
            margin-bottom: 12px;
            font-size: 0.95rem;
        }

        .footer-col a {
            display: block;
            color: var(--text-secondary);
            text-decoration: none;
            font-size: 0.88rem;
            margin-bottom: 7px;
            transition: color 0.2s;
        }

        .footer-col a:hover {
            color: #00F0FF;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 18px;
            text-align: center;
            color: var(--text-muted);
            font-size: 0.82rem;
        }

        /* FAB - Cyber & Neon Style */
        .fab-floating {
            position: fixed;
            left: 20px;
            bottom: 90px;
            z-index: 1050;
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background: rgba(8, 9, 15, 0.7);
            backdrop-filter: blur(10px);
            border: 2px solid transparent;
            background-clip: padding-box;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: all 0.35s ease;
            box-shadow: 0 0 15px rgba(0, 240, 255, 0.4);
            animation: fabPulse 2.5s infinite;
        }

        .fab-floating::before {
            content: '';
            position: absolute;
            inset: -3px;
            border-radius: 50%;
            background: linear-gradient(135deg, #0052FF, #00F0FF);
            z-index: -1;
            opacity: 0.7;
        }

        .fab-floating i {
            font-size: 1.5rem;
            color: #00F0FF;
            transition: all 0.3s;
        }

        .fab-floating:hover {
            transform: scale(1.1);
            box-shadow: 0 0 28px rgba(0, 240, 255, 0.7);
        }

        .fab-floating::after {
            content: '';
            position: absolute;
            top: -4px;
            right: -4px;
            width: 10px;
            height: 10px;
            background: #FF007F;
            border-radius: 50%;
            animation: blinkDot 1.2s infinite;
        }

        @keyframes fabPulse {
            0%,
            100% {
                transform: translateY(0);
            }
            50% {
                transform: translateY(-6px);
            }
        }
        @keyframes blinkDot {
            0%,
            100% {
                opacity: 0.4;
            }
            50% {
                opacity: 1;
            }
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .article-container {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .article-sidebar {
                position: static;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            .nav-links {
                display: none;
                width: 100%;
                flex-direction: column;
                background: rgba(8, 9, 15, 0.95);
                backdrop-filter: blur(20px);
                padding: 14px;
                border-radius: 0 0 var(--radius-md) var(--radius-md);
                margin-top: 8px;
            }
            .nav-links.show {
                display: flex;
            }
            .nav-toggle {
                display: block;
            }
            .nav-actions {
                margin-left: auto;
                gap: 6px;
            }
            .btn-login,
            .btn-signup {
                padding: 6px 14px;
                font-size: 0.78rem;
            }
            .article-header h1 {
                font-size: 1.6rem;
            }
            .article-body {
                font-size: 0.95rem;
            }
            .article-featured-img {
                max-height: 240px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .fab-floating {
                width: 44px;
                height: 44px;
                left: 12px;
                bottom: 70px;
            }
        }

        @media (max-width: 520px) {
            .navbar-brand {
                font-size: 1rem;
            }
            .article-header h1 {
                font-size: 1.35rem;
            }
            .article-meta {
                font-size: 0.75rem;
                gap: 10px;
            }
            .container {
                padding: 0 12px;
            }
        }

/* roulang page: category2 */
:root {
            --bg-primary: #08090F;
            --bg-secondary: #0D111E;
            --bg-card: rgba(13, 17, 30, 0.7);
            --accent-blue: #0052FF;
            --accent-cyan: #00F0FF;
            --accent-gold: #FFD700;
            --text-primary: #FFFFFF;
            --text-secondary: #CBD5E1;
            --text-muted: #64748B;
            --border-color: rgba(0, 82, 255, 0.3);
            --glow-cyan: 0 0 15px rgba(0, 240, 255, 0.5);
            --glow-blue: 0 0 20px rgba(0, 82, 255, 0.4);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        body {
            font-family: 'Segoe UI', -apple-system, BlinkMacSystemFont, sans-serif;
            background-color: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

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

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

        /* Container */
        .container-custom {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* Header & Navigation (Shared) */
        header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(8, 9, 15, 0.9);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(0, 82, 255, 0.2);
            padding: 0;
        }

        .navbar {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            padding: 12px 0;
        }

        .navbar-brand {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--text-primary) !important;
            letter-spacing: -0.3px;
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-blue));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            white-space: nowrap;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 24px;
            list-style: none;
            margin: 0;
            padding: 0;
        }

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

        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: linear-gradient(90deg, var(--accent-cyan), var(--accent-blue));
            border-radius: 2px;
            transition: width 0.3s ease;
        }

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

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

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

        .btn-login {
            background: transparent;
            border: 1px solid rgba(0, 240, 255, 0.4);
            color: var(--accent-cyan);
            padding: 8px 20px;
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            white-space: nowrap;
        }

        .btn-login:hover {
            border-color: var(--accent-cyan);
            background: rgba(0, 240, 255, 0.1);
            box-shadow: 0 0 12px rgba(0, 240, 255, 0.25);
        }

        .btn-signup {
            background: linear-gradient(135deg, var(--accent-blue), #0066FF);
            border: none;
            color: #FFF;
            padding: 8px 22px;
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 700;
            cursor: pointer;
            transition: var(--transition);
            box-shadow: 0 4px 15px rgba(0, 82, 255, 0.4);
            white-space: nowrap;
        }

        .btn-signup:hover {
            box-shadow: 0 6px 25px rgba(0, 82, 255, 0.7);
            transform: translateY(-1px);
        }

        /* Mobile Nav Toggle */
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--text-primary);
            font-size: 1.5rem;
            cursor: pointer;
        }

        /* Hero Section */
        .hero-section {
            position: relative;
            padding: 80px 0 60px;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            border-bottom: 2px solid rgba(0, 240, 255, 0.15);
            overflow: hidden;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(8,9,15,0.85) 0%, rgba(8,9,15,0.95) 100%);
            z-index: 1;
        }

        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 800px;
            margin: 0 auto;
            text-align: center;
        }

        .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: 6px 18px;
            border-radius: 50px;
            font-size: 0.8rem;
            font-weight: 600;
            margin-bottom: 20px;
            letter-spacing: 0.5px;
        }

        .hero-section h1 {
            font-size: 2.8rem;
            font-weight: 800;
            line-height: 1.25;
            margin-bottom: 18px;
            background: linear-gradient(135deg, #FFFFFF, var(--accent-cyan));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero-subtitle {
            font-size: 1.1rem;
            color: var(--text-secondary);
            margin-bottom: 30px;
            line-height: 1.7;
        }

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

        .btn-primary-cta {
            background: linear-gradient(135deg, var(--accent-blue), #0044CC);
            border: none;
            color: #FFF;
            padding: 14px 36px;
            border-radius: 50px;
            font-size: 1rem;
            font-weight: 700;
            cursor: pointer;
            box-shadow: 0 8px 30px rgba(0, 82, 255, 0.5);
            transition: var(--transition);
            letter-spacing: 0.3px;
        }

        .btn-primary-cta:hover {
            box-shadow: 0 12px 40px rgba(0, 240, 255, 0.6);
            transform: translateY(-2px);
        }

        .btn-outline-cta {
            background: transparent;
            border: 1.5px solid rgba(0, 240, 255, 0.5);
            color: var(--accent-cyan);
            padding: 14px 32px;
            border-radius: 50px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
        }

        .btn-outline-cta:hover {
            background: rgba(0, 240, 255, 0.08);
            border-color: var(--accent-cyan);
            box-shadow: 0 0 20px rgba(0, 240, 255, 0.3);
        }

        /* Promo Highlights (3-up Row) */
        .promo-highlights {
            padding: 60px 0;
        }

        .highlight-card {
            background: var(--bg-card);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 30px 24px;
            text-align: left;
            transition: var(--transition);
            height: 100%;
            position: relative;
        }

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

        .highlight-icon {
            font-size: 2.4rem;
            color: var(--accent-cyan);
            margin-bottom: 16px;
        }

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

        .highlight-card p {
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.65;
            margin: 0;
        }

        /* Featured Promotions Detail */
        .promo-detail-section {
            padding: 60px 0;
        }

        .section-title {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--text-primary);
            text-align: left;
        }

        .section-subtitle {
            font-size: 1rem;
            color: var(--text-secondary);
            margin-bottom: 40px;
            text-align: left;
            line-height: 1.6;
        }

        .promo-detail-card {
            background: var(--bg-card);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-xl);
            padding: 32px;
            margin-bottom: 24px;
            display: flex;
            gap: 28px;
            align-items: flex-start;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }

        .promo-detail-card:hover {
            border-color: var(--accent-cyan);
            box-shadow: var(--glow-blue);
        }

        .promo-rank {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--accent-cyan);
            min-width: 50px;
            line-height: 1;
        }

        .promo-body {
            flex: 1;
        }

        .promo-body h3 {
            font-size: 1.4rem;
            font-weight: 700;
            margin-bottom: 8px;
        }

        .promo-tag {
            display: inline-block;
            background: rgba(255, 215, 0, 0.15);
            color: var(--accent-gold);
            border: 1px solid rgba(255, 215, 0, 0.3);
            padding: 4px 12px;
            border-radius: 50px;
            font-size: 0.75rem;
            font-weight: 600;
            margin-bottom: 12px;
        }

        .promo-detail-card p {
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.65;
            margin-bottom: 14px;
        }

        .promo-meta {
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        .promo-meta span i {
            margin-right: 5px;
            color: var(--accent-cyan);
        }

        .btn-promo {
            display: inline-block;
            background: linear-gradient(135deg, var(--accent-blue), #0033AA);
            color: #FFF;
            padding: 10px 26px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 0.9rem;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            margin-top: 12px;
        }

        .btn-promo:hover {
            box-shadow: 0 6px 22px rgba(0, 82, 255, 0.7);
            transform: translateY(-1px);
            color: #FFF;
        }

        /* How-to / Steps */
        .steps-section {
            padding: 60px 0;
            background: var(--bg-secondary);
            border-radius: var(--radius-xl);
            margin: 40px 0;
        }

        .step-item {
            display: flex;
            gap: 20px;
            align-items: flex-start;
            padding: 20px 0;
            border-bottom: 1px solid rgba(255,255,255,0.06);
        }

        .step-item:last-child {
            border-bottom: none;
        }

        .step-number {
            background: linear-gradient(135deg, var(--accent-blue), var(--accent-cyan));
            color: #FFF;
            width: 44px;
            height: 44px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            font-weight: 800;
            font-size: 1.2rem;
            flex-shrink: 0;
        }

        .step-text h4 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 5px;
        }

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

        /* FAQ */
        .faq-section {
            padding: 60px 0;
        }

        .accordion-button {
            background: var(--bg-card) !important;
            color: var(--text-primary) !important;
            border: 1px solid var(--border-color) !important;
            border-radius: var(--radius-md) !important;
            font-weight: 600;
            padding: 18px 24px;
            margin-bottom: 8px;
            box-shadow: none !important;
            transition: var(--transition);
        }

        .accordion-button:not(.collapsed) {
            background: rgba(0, 240, 255, 0.08) !important;
            border-color: var(--accent-cyan) !important;
            color: var(--accent-cyan) !important;
        }

        .accordion-button:focus {
            border-color: var(--accent-cyan) !important;
        }

        .accordion-body {
            background: rgba(8,9,15,0.6);
            color: var(--text-secondary);
            padding: 18px 24px;
            border-radius: 0 0 var(--radius-md) var(--radius-md);
            line-height: 1.7;
        }

        /* CTA Bar */
        .cta-bar {
            background: linear-gradient(135deg, var(--bg-secondary), #050810);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-xl);
            padding: 40px 30px;
            text-align: left;
            margin: 50px 0;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 20px;
        }

        .cta-bar h3 {
            font-size: 1.6rem;
            font-weight: 700;
        }

        .cta-bar p {
            color: var(--text-secondary);
            margin: 0;
        }

        /* Footer (Shared) */
        footer {
            background: rgba(8, 9, 15, 0.95);
            border-top: 1px solid rgba(0, 82, 255, 0.25);
            padding: 50px 0 30px;
            margin-top: 40px;
        }

        .footer-brand {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 10px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 30px;
            margin-bottom: 30px;
        }

        .footer-col h5 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 14px;
        }

        .footer-col a {
            display: block;
            color: var(--text-secondary);
            margin-bottom: 8px;
            font-size: 0.9rem;
            transition: var(--transition);
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.08);
            padding-top: 20px;
            text-align: center;
            color: var(--text-muted);
            font-size: 0.85rem;
        }

        /* Responsive */
        @media (max-width: 992px) {
            .navbar {
                flex-wrap: nowrap;
            }
            .nav-links {
                gap: 16px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            .nav-links {
                display: none;
                flex-direction: column;
                width: 100%;
                background: rgba(8,9,15,0.98);
                padding: 16px 0;
                margin-top: 12px;
                border-top: 1px solid var(--border-color);
            }
            .nav-links.show {
                display: flex;
            }
            .nav-toggle {
                display: block;
            }
            .hero-section h1 {
                font-size: 2rem;
            }
            .promo-detail-card {
                flex-direction: column;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .cta-bar {
                flex-direction: column;
                text-align: center;
            }
        }

        @media (max-width: 520px) {
            .navbar-brand {
                font-size: 1rem;
            }
            .btn-login,
            .btn-signup {
                padding: 6px 14px;
                font-size: 0.75rem;
            }
            .hero-section {
                padding: 50px 0 40px;
            }
        }

/* roulang page: category3 */
:root {
            --primary-deep: #080C1A;
            --primary-surface: #111832;
            --primary-card: rgba(17, 24, 50, 0.7);
            --primary-border: rgba(255, 255, 255, 0.08);
            --accent-brand: #1852CC;
            --accent-glow: #00D4FF;
            --accent-hot: #FF3366;
            --accent-amber: #FFB800;
            --text-primary: #FFFFFF;
            --text-secondary: #B0C0E0;
            --text-muted: #6B7A9E;
            --shadow-glow: 0 8px 32px rgba(0, 212, 255, 0.15);
            --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.4);
            --radius-md: 16px;
            --radius-lg: 24px;
            --radius-xl: 32px;
            --radius-btn: 50px;
            --glass-bg: rgba(17, 24, 50, 0.65);
            --glass-border: 1px solid rgba(255, 255, 255, 0.12);
            --blur-amount: 12px;
            --transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
        }

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

        body {
            background: var(--primary-deep);
            background-image: radial-gradient(circle at 20% 10%, rgba(24, 82, 204, 0.18) 0%, transparent 55%),
                              radial-gradient(circle at 80% 30%, rgba(0, 212, 255, 0.10) 0%, transparent 60%);
            color: var(--text-primary);
            font-family: 'Inter', 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

        /* Typography */
        h1, h2, h3, h4, h5 {
            font-weight: 700;
            letter-spacing: -0.02em;
        }
        h1 { font-size: clamp(2.4rem, 6vw, 3.8rem); }
        h2 { font-size: clamp(1.8rem, 4vw, 2.6rem); }
        h3 { font-size: 1.5rem; }
        p { color: var(--text-secondary); }
        a { color: var(--accent-glow); text-decoration: none; transition: var(--transition); }
        a:hover { color: #fff; }

        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ---- Navigation (Shared) ---- */
        .navbar {
            background: rgba(8, 12, 26, 0.85);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--primary-border);
            padding: 15px 0;
            transition: var(--transition);
        }
        .navbar-brand {
            font-size: 1.5rem;
            font-weight: 800;
            color: #fff !important;
            background: linear-gradient(135deg, #FFFFFF 0%, #AAD0FF 90%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            letter-spacing: -0.5px;
            text-decoration: none;
        }
        .nav-links a {
            color: var(--text-secondary) !important;
            margin: 0 12px;
            font-weight: 500;
            font-size: 0.95rem;
            padding: 8px 4px;
            position: relative;
            transition: var(--transition);
        }
        .nav-links a:hover, .nav-links a.active {
            color: #fff !important;
        }
        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 3px;
            background: var(--accent-glow);
            border-radius: 3px 3px 0 0;
            box-shadow: 0 0 12px var(--accent-glow);
        }
        .nav-actions button {
            border: none;
            font-weight: 600;
            padding: 10px 22px;
            border-radius: var(--radius-btn);
            transition: var(--transition);
            background: transparent;
            color: #fff;
        }
        .btn-login {
            border: 1px solid rgba(255,255,255,0.25) !important;
            background: transparent;
            margin-right: 8px;
        }
        .btn-login:hover { background: rgba(255,255,255,0.1); }
        .btn-signup {
            background: linear-gradient(135deg, #1852CC 0%, #00A6E0 100%);
            box-shadow: 0 4px 14px rgba(0, 180, 255, 0.4);
            color: #000 !important;
            font-weight: 700;
        }
        .btn-signup:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 22px rgba(0, 212, 255, 0.5);
        }
        @media (max-width: 991px) {
            .nav-links, .nav-actions {
                flex-wrap: wrap;
                justify-content: center;
                margin-top: 10px;
            }
        }

        /* ---- Category Hero ---- */
        .category-hero {
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            position: relative;
            padding: 100px 0 80px;
            border-bottom: 1px solid var(--primary-border);
        }
        .category-hero::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(8,12,26,0.6) 0%, rgba(17,24,50,0.9) 100%);
            backdrop-filter: blur(2px);
        }
        .hero-content {
            position: relative;
            z-index: 2;
        }
        .hot-tag {
            background: var(--accent-hot);
            color: #fff;
            font-weight: 700;
            padding: 6px 18px;
            border-radius: 30px;
            font-size: 0.9rem;
            display: inline-block;
            margin-bottom: 20px;
            letter-spacing: 0.5px;
            box-shadow: 0 0 20px rgba(255, 51, 102, 0.5);
        }

        /* ---- Glass Cards ---- */
        .glass-card {
            background: var(--glass-bg);
            backdrop-filter: blur(var(--blur-amount));
            -webkit-backdrop-filter: blur(var(--blur-amount));
            border: var(--glass-border);
            border-radius: var(--radius-lg);
            padding: 28px;
            box-shadow: var(--shadow-card);
            transition: var(--transition);
        }
        .glass-card:hover {
            transform: translateY(-5px);
            border-color: rgba(0, 212, 255, 0.35);
            box-shadow: var(--shadow-glow);
        }

        /* ---- Promo Cards ---- */
        .promo-card {
            background: rgba(17, 24, 50, 0.55);
            backdrop-filter: blur(10px);
            border: 1px solid rgba(255,255,255,0.08);
            border-radius: 28px;
            overflow: hidden;
            transition: all 0.4s ease;
        }
        .promo-card:hover {
            border-color: var(--accent-glow);
            box-shadow: 0 12px 35px rgba(0, 180, 255, 0.25);
        }
        .promo-badge {
            background: linear-gradient(135deg, #FFB800, #FF6B00);
            color: #000;
            font-weight: 800;
            padding: 5px 16px;
            border-radius: 40px;
            font-size: 0.8rem;
            letter-spacing: 0.4px;
        }
        .btn-primary-glow {
            background: var(--accent-brand);
            border: none;
            padding: 14px 32px;
            border-radius: 50px;
            font-weight: 700;
            color: #fff;
            box-shadow: 0 5px 18px rgba(24, 82, 204, 0.5);
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .btn-primary-glow:hover {
            background: #1f6aff;
            transform: translateY(-3px);
            box-shadow: 0 10px 28px rgba(0, 160, 255, 0.6);
        }
        .btn-outline-glow {
            border: 1px solid var(--accent-glow);
            color: var(--accent-glow);
            padding: 12px 28px;
            border-radius: 50px;
            font-weight: 600;
            background: transparent;
            transition: var(--transition);
        }
        .btn-outline-glow:hover {
            background: rgba(0,212,255,0.12);
            color: #fff;
        }

        /* FAQ */
        .accordion-button {
            background: rgba(255,255,255,0.03);
            color: #fff;
            font-weight: 600;
            border: 1px solid var(--primary-border);
            border-radius: 14px !important;
        }
        .accordion-button:not(.collapsed) {
            background: rgba(0,212,255,0.06);
            color: #fff;
            box-shadow: none;
        }
        .accordion-item {
            background: transparent;
            border: none;
            margin-bottom: 14px;
        }

        /* Footer */
        footer {
            background: rgba(2, 4, 15, 0.9);
            backdrop-filter: blur(16px);
            border-top: 1px solid rgba(255,255,255,0.05);
            padding: 60px 0 25px;
            margin-top: auto;
            color: var(--text-secondary);
        }
        .footer-brand {
            font-size: 1.6rem;
            font-weight: 800;
            color: #fff;
        }
        .footer-col h5 {
            color: #fff;
            margin-bottom: 18px;
        }
        .footer-col a {
            display: block;
            color: var(--text-muted);
            margin-bottom: 10px;
            font-size: 0.92rem;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.06);
            margin-top: 40px;
            padding-top: 22px;
            text-align: center;
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        @media (max-width: 768px) {
            .category-hero { padding: 70px 0 50px; }
        }