/* roulang page: index */
:root {
            --primary-deep: #0F0C20;
            --primary-navy: #0B1A30;
            --accent-neon-green: #CCFF00;
            --accent-cyan: #00F0FF;
            --accent-hot-pink: #FF007F;
            --accent-purple: #8B5CF6;
            --text-white: #FFFFFF;
            --text-silver: #A6ACAF;
            --text-muted: #6B7280;
            --bg-dark: #0D0A1A;
            --bg-card: rgba(15, 12, 32, 0.85);
            --border-glow: rgba(0, 240, 255, 0.3);
            --border-glass: rgba(255, 255, 255, 0.08);
            --shadow-neon: 0 0 25px rgba(0, 240, 255, 0.3);
            --shadow-neon-strong: 0 0 45px rgba(204, 255, 0, 0.5);
            --radius-sm: 8px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --radius-xl: 32px;
            --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-smooth: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            --font-primary: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
        }

        * {
            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: var(--bg-dark);
            color: var(--text-white);
            line-height: 1.6;
            overflow-x: hidden;
            position: relative;
            min-height: 100vh;
        }

        body::before {
            content: '';
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: radial-gradient(ellipse at 20% 20%, rgba(139, 92, 246, 0.12) 0%, transparent 50%),
                        radial-gradient(ellipse at 80% 80%, rgba(0, 240, 255, 0.08) 0%, transparent 50%),
                        radial-gradient(ellipse at 50% 50%, rgba(204, 255, 0, 0.04) 0%, transparent 60%);
            pointer-events: none;
            z-index: 0;
        }

        .site-wrapper {
            position: relative;
            z-index: 1;
        }

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

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

        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--accent-cyan);
            outline-offset: 2px;
            border-radius: 4px;
        }

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

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .container-wide {
            max-width: 1360px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* Navbar */
        .navbar-custom {
            background: rgba(13, 10, 26, 0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-glass);
            padding: 16px 0;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1050;
            transition: all var(--transition-smooth);
        }

        .navbar-custom.scrolled {
            background: rgba(13, 10, 26, 0.98);
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5);
            padding: 10px 0;
        }

        .navbar-custom .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
        }

        .navbar-brand-custom {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--text-white);
            letter-spacing: -0.02em;
            display: flex;
            align-items: center;
            gap: 10px;
            text-decoration: none;
            transition: color var(--transition-fast);
            max-width: 380px;
        }

        .navbar-brand-custom:hover {
            color: var(--accent-neon-green);
        }

        .navbar-brand-custom .brand-icon {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-neon-green));
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--bg-dark);
            font-weight: 800;
            font-size: 1.1rem;
            flex-shrink: 0;
        }

        .navbar-nav-custom {
            display: flex;
            align-items: center;
            gap: 8px;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .navbar-nav-custom li a {
            display: block;
            padding: 8px 16px;
            color: var(--text-silver);
            font-weight: 500;
            font-size: 0.9rem;
            border-radius: 8px;
            transition: all var(--transition-fast);
            text-decoration: none;
            white-space: nowrap;
        }

        .navbar-nav-custom li a:hover,
        .navbar-nav-custom li a.active {
            color: var(--accent-neon-green);
            background: rgba(204, 255, 0, 0.08);
        }

        .navbar-nav-custom li a.active {
            font-weight: 600;
            border: 1px solid rgba(204, 255, 0, 0.25);
        }

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

        .btn-login {
            padding: 8px 18px;
            background: transparent;
            border: 1px solid var(--border-glass);
            color: var(--text-white);
            font-weight: 500;
            font-size: 0.85rem;
            border-radius: 8px;
            transition: all var(--transition-fast);
            text-decoration: none;
            white-space: nowrap;
        }

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

        .btn-signup {
            padding: 8px 22px;
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-neon-green));
            border: none;
            color: var(--bg-dark);
            font-weight: 700;
            font-size: 0.85rem;
            border-radius: 8px;
            transition: all var(--transition-fast);
            text-decoration: none;
            white-space: nowrap;
            box-shadow: 0 4px 15px rgba(0, 240, 255, 0.3);
        }

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

        .navbar-toggler-custom {
            display: none;
            background: transparent;
            border: 1px solid var(--border-glass);
            color: var(--text-white);
            padding: 8px 12px;
            border-radius: 8px;
            cursor: pointer;
            font-size: 1.2rem;
        }

        /* Hero Section - Full-width immersive */
        .hero-section {
            min-height: 100vh;
            display: flex;
            align-items: center;
            position: relative;
            padding: 140px 0 80px;
            background: linear-gradient(180deg, rgba(15, 12, 32, 0.6) 0%, rgba(13, 10, 26, 0.95) 100%);
            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: 0.35;
            z-index: 0;
        }

        .hero-section::after {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(135deg, rgba(139, 92, 246, 0.3) 0%, rgba(0, 240, 255, 0.15) 50%, rgba(204, 255, 0, 0.1) 100%);
            z-index: 0;
            pointer-events: none;
        }

        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 700px;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(204, 255, 0, 0.12);
            border: 1px solid rgba(204, 255, 0, 0.35);
            color: var(--accent-neon-green);
            padding: 6px 16px;
            border-radius: 50px;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.02em;
            margin-bottom: 20px;
        }

        .hero-badge i {
            font-size: 0.7rem;
            animation: pulse-dot 1.5s ease-in-out infinite;
        }

        @keyframes pulse-dot {
            0%, 100% { opacity: 1; transform: scale(1); }
            50% { opacity: 0.5; transform: scale(0.8); }
        }

        .hero-title {
            font-size: 3.2rem;
            font-weight: 800;
            line-height: 1.15;
            letter-spacing: -0.03em;
            margin-bottom: 24px;
            color: var(--text-white);
        }

        .hero-title .highlight {
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-neon-green));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero-description {
            font-size: 1.05rem;
            color: var(--text-silver);
            line-height: 1.7;
            margin-bottom: 32px;
            max-width: 580px;
        }

        .hero-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
            margin-bottom: 40px;
        }

        .btn-primary-glow {
            padding: 14px 32px;
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-neon-green));
            border: none;
            color: var(--bg-dark);
            font-weight: 700;
            font-size: 0.95rem;
            border-radius: 12px;
            transition: all var(--transition-smooth);
            text-decoration: none;
            box-shadow: 0 6px 25px rgba(0, 240, 255, 0.35);
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }

        .btn-primary-glow:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 40px rgba(0, 240, 255, 0.55);
            color: var(--bg-dark);
        }

        .btn-secondary-glass {
            padding: 14px 28px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid var(--border-glass);
            color: var(--text-white);
            font-weight: 600;
            font-size: 0.95rem;
            border-radius: 12px;
            transition: all var(--transition-smooth);
            text-decoration: none;
            backdrop-filter: blur(10px);
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }

        .btn-secondary-glass:hover {
            border-color: var(--accent-cyan);
            background: rgba(0, 240, 255, 0.08);
            color: var(--accent-cyan);
        }

        .hero-stats {
            display: flex;
            gap: 32px;
            flex-wrap: wrap;
        }

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

        .hero-stat .stat-number {
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--accent-cyan);
            letter-spacing: -0.02em;
        }

        .hero-stat .stat-label {
            font-size: 0.8rem;
            color: var(--text-silver);
            font-weight: 500;
        }

        /* Section Common */
        .section-block {
            padding: 80px 0;
            position: relative;
        }

        .section-block-alt {
            padding: 80px 0;
            position: relative;
            background: rgba(15, 12, 32, 0.5);
            border-top: 1px solid var(--border-glass);
            border-bottom: 1px solid var(--border-glass);
        }

        .section-header {
            margin-bottom: 48px;
            max-width: 720px;
        }

        .section-tag {
            display: inline-block;
            font-size: 0.78rem;
            font-weight: 600;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--accent-cyan);
            margin-bottom: 12px;
        }

        .section-title {
            font-size: 2.2rem;
            font-weight: 700;
            letter-spacing: -0.02em;
            margin-bottom: 16px;
            line-height: 1.3;
        }

        .section-description {
            font-size: 1rem;
            color: var(--text-silver);
            line-height: 1.7;
            max-width: 640px;
        }

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

        .commission-card {
            background: var(--bg-card);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-md);
            padding: 28px;
            transition: all var(--transition-smooth);
            position: relative;
            overflow: hidden;
        }

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

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

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

        .commission-card .card-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            margin-bottom: 16px;
            background: rgba(0, 240, 255, 0.1);
            color: var(--accent-cyan);
        }

        .commission-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 10px;
        }

        .commission-card p {
            font-size: 0.9rem;
            color: var(--text-silver);
            line-height: 1.65;
            margin: 0;
        }

        /* Promo Materials */
        .promo-materials {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }

        .promo-text h3 {
            font-size: 1.6rem;
            font-weight: 700;
            margin-bottom: 16px;
        }

        .promo-text p {
            color: var(--text-silver);
            line-height: 1.7;
            margin-bottom: 20px;
        }

        .promo-text ul {
            list-style: none;
            padding: 0;
            margin: 0 0 24px;
        }

        .promo-text ul li {
            padding: 8px 0;
            color: var(--text-silver);
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 0.92rem;
        }

        .promo-text ul li i {
            color: var(--accent-neon-green);
            font-size: 0.85rem;
        }

        .promo-visual {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-glass);
            box-shadow: var(--shadow-neon);
        }

        .promo-visual img {
            width: 100%;
            height: auto;
            object-fit: cover;
            transition: transform var(--transition-smooth);
        }

        .promo-visual:hover img {
            transform: scale(1.03);
        }

        /* News / CMS List */
        .news-layout {
            display: grid;
            grid-template-columns: 1.4fr 0.8fr;
            gap: 32px;
            margin-top: 40px;
        }

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

        .news-list li {
            border-bottom: 1px solid var(--border-glass);
            padding: 18px 0;
            transition: all var(--transition-fast);
        }

        .news-list li:last-child {
            border-bottom: none;
        }

        .news-list li:hover {
            padding-left: 8px;
        }

        .news-list a {
            display: block;
            text-decoration: none;
        }

        .news-list .news-title {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--text-white);
            margin-bottom: 6px;
            line-height: 1.45;
            transition: color var(--transition-fast);
        }

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

        .news-list .news-meta {
            font-size: 0.8rem;
            color: var(--text-muted);
            display: flex;
            gap: 16px;
            align-items: center;
        }

        .news-list .news-meta .news-cat {
            color: var(--accent-neon-green);
            font-weight: 600;
        }

        .news-sidebar {
            background: var(--bg-card);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-md);
            padding: 24px;
            height: fit-content;
        }

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

        .news-sidebar p {
            font-size: 0.88rem;
            color: var(--text-silver);
            line-height: 1.65;
            margin-bottom: 16px;
        }

        .news-sidebar .btn-sidebar {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 20px;
            background: rgba(0, 240, 255, 0.1);
            border: 1px solid rgba(0, 240, 255, 0.3);
            color: var(--accent-cyan);
            font-weight: 600;
            font-size: 0.85rem;
            border-radius: 8px;
            text-decoration: none;
            transition: all var(--transition-fast);
        }

        .news-sidebar .btn-sidebar:hover {
            background: rgba(0, 240, 255, 0.2);
            color: var(--accent-cyan);
        }

        /* Festival Campaign */
        .festival-campaign {
            background: linear-gradient(135deg, rgba(139, 92, 246, 0.15) 0%, rgba(0, 240, 255, 0.1) 100%);
            border: 1px solid var(--border-glow);
            border-radius: var(--radius-lg);
            padding: 40px;
            position: relative;
            overflow: hidden;
        }

        .festival-campaign::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(204, 255, 0, 0.15) 0%, transparent 70%);
            pointer-events: none;
        }

        .festival-campaign h3 {
            font-size: 1.8rem;
            font-weight: 800;
            margin-bottom: 12px;
        }

        .festival-campaign p {
            color: var(--text-silver);
            font-size: 1rem;
            line-height: 1.7;
            margin-bottom: 24px;
            max-width: 560px;
        }

        .festival-campaign .btn-festival {
            padding: 12px 28px;
            background: linear-gradient(135deg, var(--accent-hot-pink), var(--accent-purple));
            border: none;
            color: var(--text-white);
            font-weight: 700;
            font-size: 0.9rem;
            border-radius: 10px;
            text-decoration: none;
            transition: all var(--transition-smooth);
            display: inline-flex;
            align-items: center;
            gap: 10px;
            box-shadow: 0 4px 20px rgba(255, 0, 127, 0.35);
        }

        .festival-campaign .btn-festival:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 30px rgba(255, 0, 127, 0.55);
            color: var(--text-white);
        }

        /* Activity Highlights Wall */
        .activity-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            margin-top: 40px;
        }

        .activity-card {
            background: var(--bg-card);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition-smooth);
        }

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

        .activity-card .activity-img {
            width: 100%;
            height: 180px;
            object-fit: cover;
            transition: transform var(--transition-smooth);
        }

        .activity-card:hover .activity-img {
            transform: scale(1.05);
        }

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

        .activity-card .activity-tag {
            display: inline-block;
            font-size: 0.72rem;
            font-weight: 700;
            letter-spacing: 0.06em;
            text-transform: uppercase;
            color: var(--accent-hot-pink);
            margin-bottom: 8px;
        }

        .activity-card h4 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 8px;
            line-height: 1.4;
        }

        .activity-card p {
            font-size: 0.85rem;
            color: var(--text-silver);
            line-height: 1.6;
            margin-bottom: 16px;
        }

        .activity-card .btn-activity {
            padding: 8px 18px;
            background: rgba(204, 255, 0, 0.1);
            border: 1px solid rgba(204, 255, 0, 0.3);
            color: var(--accent-neon-green);
            font-weight: 600;
            font-size: 0.82rem;
            border-radius: 8px;
            text-decoration: none;
            transition: all var(--transition-fast);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .activity-card .btn-activity:hover {
            background: rgba(204, 255, 0, 0.2);
            color: var(--accent-neon-green);
        }

        /* Timeline */
        .timeline-section {
            position: relative;
            padding-left: 32px;
        }

        .timeline-section::before {
            content: '';
            position: absolute;
            left: 10px;
            top: 0;
            bottom: 0;
            width: 2px;
            background: linear-gradient(180deg, var(--accent-cyan), var(--accent-neon-green));
            border-radius: 2px;
        }

        .timeline-item {
            position: relative;
            padding: 0 0 32px 32px;
        }

        .timeline-item:last-child {
            padding-bottom: 0;
        }

        .timeline-item::before {
            content: '';
            position: absolute;
            left: -26px;
            top: 6px;
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background: var(--accent-cyan);
            box-shadow: 0 0 15px rgba(0, 240, 255, 0.5);
            border: 2px solid var(--bg-dark);
        }

        .timeline-item .timeline-time {
            font-size: 0.78rem;
            font-weight: 700;
            color: var(--accent-cyan);
            letter-spacing: 0.05em;
            margin-bottom: 6px;
        }

        .timeline-item h4 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 6px;
        }

        .timeline-item p {
            font-size: 0.9rem;
            color: var(--text-silver);
            line-height: 1.65;
            margin: 0;
        }

        /* Join Section */
        .join-section {
            background: linear-gradient(135deg, rgba(15, 12, 32, 0.9) 0%, rgba(11, 26, 48, 0.95) 100%);
            border-top: 1px solid var(--border-glass);
            border-bottom: 1px solid var(--border-glass);
            padding: 100px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .join-section::before {
            content: '';
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(0, 240, 255, 0.1) 0%, transparent 70%);
            pointer-events: none;
        }

        .join-section h2 {
            font-size: 2.4rem;
            font-weight: 800;
            margin-bottom: 16px;
            letter-spacing: -0.02em;
        }

        .join-section p {
            font-size: 1.05rem;
            color: var(--text-silver);
            line-height: 1.7;
            max-width: 560px;
            margin: 0 auto 32px;
        }

        /* Footer */
        .footer-custom {
            background: rgba(10, 8, 20, 0.95);
            border-top: 1px solid var(--border-glass);
            padding: 48px 0 24px;
            position: relative;
        }

        .footer-brand {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .footer-brand .brand-icon {
            width: 32px;
            height: 32px;
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-neon-green));
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--bg-dark);
            font-weight: 800;
            font-size: 0.9rem;
        }

        .footer-desc {
            font-size: 0.85rem;
            color: var(--text-silver);
            line-height: 1.65;
            margin-bottom: 20px;
        }

        .footer-nav {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
        }

        .footer-nav li a {
            font-size: 0.85rem;
            color: var(--text-silver);
            text-decoration: none;
            transition: color var(--transition-fast);
        }

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

        .footer-copyright {
            border-top: 1px solid var(--border-glass);
            margin-top: 32px;
            padding-top: 20px;
            font-size: 0.78rem;
            color: var(--text-muted);
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
        }

        /* FAB */
        .fab-custom {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: 1060;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: rgba(13, 10, 26, 0.8);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border: 2px solid transparent;
            background-clip: padding-box;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: all var(--transition-smooth);
            box-shadow: 0 0 20px rgba(0, 240, 255, 0.4);
            position: fixed;
            text-decoration: none;
            color: var(--accent-cyan);
            font-size: 1.3rem;
            animation: fab-breathe 3s ease-in-out infinite;
        }

        .fab-custom::before {
            content: '';
            position: absolute;
            inset: -2px;
            border-radius: 50%;
            padding: 2px;
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-neon-green));
            -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
            -webkit-mask-composite: xor;
            mask-composite: exclude;
            pointer-events: none;
        }

        @keyframes fab-breathe {
            0%, 100% { opacity: 0.7; }
            50% { opacity: 1; }
        }

        .fab-custom:hover {
            transform: scale(1.15);
            opacity: 1;
            box-shadow: 0 0 35px rgba(0, 240, 255, 0.7);
            color: var(--accent-neon-green);
        }

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

        .fab-custom .fab-notification {
            position: absolute;
            top: -2px;
            right: -2px;
            width: 14px;
            height: 14px;
            border-radius: 50%;
            background: var(--accent-hot-pink);
            box-shadow: 0 0 10px rgba(255, 0, 127, 0.7);
            animation: blink-dot 1.2s ease-in-out infinite;
        }

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

        /* Responsive */
        @media (max-width: 1024px) {
            .hero-title {
                font-size: 2.5rem;
            }

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

            .news-layout {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 768px) {
            .navbar-toggler-custom {
                display: block;
            }

            .navbar-nav-custom {
                display: none;
                width: 100%;
                flex-direction: column;
                align-items: flex-start;
                padding: 12px 0;
                gap: 4px;
            }

            .navbar-nav-custom.open {
                display: flex;
            }

            .navbar-nav-custom li {
                width: 100%;
            }

            .navbar-nav-custom li a {
                padding: 10px 16px;
                width: 100%;
            }

            .nav-actions {
                display: flex;
            }

            .hero-section {
                padding: 120px 0 60px;
                min-height: auto;
            }

            .hero-title {
                font-size: 2rem;
            }

            .hero-description {
                font-size: 0.95rem;
            }

            .hero-stats {
                gap: 20px;
            }

            .hero-stat .stat-number {
                font-size: 1.3rem;
            }

            .section-block,
            .section-block-alt {
                padding: 56px 0;
            }

            .section-title {
                font-size: 1.7rem;
            }

            .commission-grid,
            .activity-grid {
                grid-template-columns: 1fr;
            }

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

            .festival-campaign {
                padding: 24px;
            }

            .festival-campaign h3 {
                font-size: 1.4rem;
            }

            .join-section h2 {
                font-size: 1.8rem;
            }

            .join-section {
                padding: 64px 0;
            }

            .fab-custom {
                width: 48px;
                height: 48px;
                font-size: 1.1rem;
                left: 12px;
                bottom: 80px;
            }
        }

        @media (max-width: 520px) {
            .container,
            .container-wide {
                padding: 0 16px;
            }

            .hero-title {
                font-size: 1.7rem;
            }

            .hero-actions {
                flex-direction: column;
                width: 100%;
            }

            .btn-primary-glow,
            .btn-secondary-glass {
                width: 100%;
                justify-content: center;
            }

            .hero-stats {
                flex-direction: column;
                gap: 12px;
            }

            .navbar-brand-custom {
                font-size: 0.95rem;
                max-width: 240px;
            }

            .nav-actions .btn-login {
                padding: 6px 12px;
                font-size: 0.78rem;
            }

            .nav-actions .btn-signup {
                padding: 6px 14px;
                font-size: 0.78rem;
            }

            .footer-copyright {
                flex-direction: column;
                text-align: center;
            }
        }

/* roulang page: article */
:root {
            --primary-deep: #0A0E27;
            --primary-surface: #111639;
            --primary-card: #181E42;
            --accent-purple: #7C4DFF;
            --accent-cyan: #00E5FF;
            --accent-pink: #FF4081;
            --accent-gold: #FFD740;
            --text-white: #FFFFFF;
            --text-soft: #B8C1EC;
            --text-muted: #7A86B8;
            --border-glass: rgba(124, 77, 255, 0.35);
            --border-cyan: rgba(0, 229, 255, 0.4);
            --bg-gradient-1: #0A0E27;
            --bg-gradient-2: #151B4A;
            --bg-gradient-3: #1A0B2E;
            --shadow-neon: 0 0 25px rgba(124, 77, 255, 0.35);
            --shadow-cyan: 0 0 20px rgba(0, 229, 255, 0.3);
            --radius-sm: 12px;
            --radius-md: 20px;
            --radius-lg: 30px;
            --font-primary: 'Be Vietnam Pro', sans-serif;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

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

        .container {
            max-width: 1200px;
            padding-left: 24px;
            padding-right: 24px;
        }

        /* ===== NAVBAR ===== */
        .navbar-custom {
            position: sticky;
            top: 0;
            z-index: 1050;
            background: rgba(10, 14, 39, 0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(124, 77, 255, 0.25);
            padding: 16px 0;
            transition: var(--transition);
        }

        .navbar-custom .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
        }

        .navbar-brand-custom {
            display: flex;
            align-items: center;
            gap: 12px;
            text-decoration: none;
            font-weight: 800;
            font-size: 1.15rem;
            color: var(--text-white);
            letter-spacing: -0.3px;
            transition: var(--transition);
        }

        .navbar-brand-custom:hover {
            color: var(--accent-cyan);
            transform: translateY(-1px);
        }

        .brand-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 42px;
            height: 42px;
            background: linear-gradient(135deg, var(--accent-purple), var(--accent-pink));
            border-radius: 12px;
            font-size: 1.2rem;
            color: var(--text-white);
            box-shadow: var(--shadow-neon);
            transition: var(--transition);
        }

        .navbar-brand-custom:hover .brand-icon {
            transform: rotate(15deg);
            box-shadow: var(--shadow-cyan);
        }

        .navbar-toggler-custom {
            display: none;
            background: transparent;
            border: 1px solid var(--border-glass);
            border-radius: 10px;
            color: var(--text-white);
            width: 44px;
            height: 44px;
            font-size: 1.3rem;
            cursor: pointer;
            transition: var(--transition);
            align-items: center;
            justify-content: center;
        }

        .navbar-toggler-custom:hover {
            background: rgba(124, 77, 255, 0.2);
            border-color: var(--accent-cyan);
            color: var(--accent-cyan);
        }

        .navbar-nav-custom {
            display: flex;
            align-items: center;
            gap: 8px;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .navbar-nav-custom li a {
            display: inline-block;
            padding: 10px 18px;
            text-decoration: none;
            color: var(--text-soft);
            font-weight: 500;
            font-size: 0.92rem;
            border-radius: 10px;
            transition: var(--transition);
            position: relative;
            white-space: nowrap;
        }

        .navbar-nav-custom li a:hover {
            color: var(--text-white);
            background: rgba(124, 77, 255, 0.15);
        }

        .navbar-nav-custom li a.active {
            color: var(--text-white);
            background: linear-gradient(135deg, rgba(124, 77, 255, 0.35), rgba(0, 229, 255, 0.2));
            box-shadow: inset 0 0 0 1px var(--border-glass);
        }

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

        .btn-login {
            display: inline-block;
            padding: 10px 20px;
            border-radius: 10px;
            text-decoration: none;
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--text-white);
            border: 1px solid var(--border-glass);
            transition: var(--transition);
            white-space: nowrap;
        }

        .btn-login:hover {
            background: rgba(124, 77, 255, 0.2);
            border-color: var(--accent-cyan);
            color: var(--accent-cyan);
            transform: translateY(-2px);
        }

        .btn-signup {
            display: inline-block;
            padding: 10px 24px;
            border-radius: 10px;
            text-decoration: none;
            font-weight: 700;
            font-size: 0.9rem;
            color: var(--text-white);
            background: linear-gradient(135deg, var(--accent-purple), var(--accent-pink));
            box-shadow: var(--shadow-neon);
            transition: var(--transition);
            white-space: nowrap;
        }

        .btn-signup:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-cyan);
            color: var(--text-white);
            background: linear-gradient(135deg, #9C6FFF, #FF6090);
        }

        /* ===== ARTICLE HERO ===== */
        .article-hero {
            position: relative;
            padding: 80px 0 50px;
            background: radial-gradient(ellipse at 30% 20%, rgba(124, 77, 255, 0.25) 0%, transparent 60%),
                        radial-gradient(ellipse at 70% 80%, rgba(0, 229, 255, 0.15) 0%, transparent 50%);
            overflow: hidden;
        }

        .article-hero::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(124, 77, 255, 0.2) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .article-hero::after {
            content: '';
            position: absolute;
            bottom: -30%;
            left: -10%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(0, 229, 255, 0.15) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

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

        .breadcrumb-custom {
            display: flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 24px;
            flex-wrap: wrap;
        }

        .breadcrumb-custom a {
            color: var(--accent-cyan);
            text-decoration: none;
            font-size: 0.85rem;
            font-weight: 500;
            transition: var(--transition);
        }

        .breadcrumb-custom a:hover {
            color: var(--text-white);
            text-decoration: underline;
        }

        .breadcrumb-custom .separator {
            color: var(--text-muted);
            font-size: 0.8rem;
        }

        .breadcrumb-custom .current {
            color: var(--text-muted);
            font-size: 0.85rem;
        }

        .article-hero h1 {
            font-size: 2.8rem;
            font-weight: 900;
            line-height: 1.2;
            letter-spacing: -1px;
            margin-bottom: 20px;
            background: linear-gradient(135deg, #FFFFFF 0%, #B8C1EC 50%, #00E5FF 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

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

        .article-meta span {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .article-meta i {
            color: var(--accent-cyan);
            font-size: 0.85rem;
        }

        .category-badge {
            display: inline-block;
            padding: 6px 16px;
            border-radius: 20px;
            background: rgba(124, 77, 255, 0.3);
            color: var(--accent-cyan);
            font-weight: 600;
            font-size: 0.8rem;
            border: 1px solid var(--border-glass);
            letter-spacing: 0.5px;
        }

        /* ===== ARTICLE CONTENT ===== */
        .article-content-wrapper {
            padding: 50px 0 80px;
            position: relative;
        }

        .article-content-wrapper::before {
            content: '';
            position: absolute;
            top: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 80%;
            height: 1px;
            background: linear-gradient(90deg, transparent, var(--border-glass), transparent);
        }

        .article-body {
            background: rgba(17, 22, 57, 0.6);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-md);
            padding: 50px;
            backdrop-filter: blur(10px);
            box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
        }

        .article-body h2 {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--text-white);
            margin: 40px 0 16px;
            letter-spacing: -0.5px;
            padding-bottom: 12px;
            border-bottom: 2px solid rgba(124, 77, 255, 0.3);
        }

        .article-body h2:first-child {
            margin-top: 0;
        }

        .article-body h3 {
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--accent-cyan);
            margin: 30px 0 12px;
        }

        .article-body p {
            color: var(--text-soft);
            font-size: 1.05rem;
            line-height: 1.75;
            margin-bottom: 20px;
        }

        .article-body ul,
        .article-body ol {
            margin-bottom: 20px;
            padding-left: 28px;
        }

        .article-body li {
            color: var(--text-soft);
            font-size: 1.05rem;
            line-height: 1.75;
            margin-bottom: 10px;
        }

        .article-body li::marker {
            color: var(--accent-purple);
            font-weight: 700;
        }

        .article-body strong {
            color: var(--text-white);
            font-weight: 700;
        }

        .article-body img {
            max-width: 100%;
            height: auto;
            border-radius: var(--radius-sm);
            margin: 20px 0;
            border: 1px solid var(--border-glass);
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.4);
        }

        .article-body blockquote {
            background: linear-gradient(135deg, rgba(124, 77, 255, 0.15), rgba(0, 229, 255, 0.1));
            border-left: 4px solid var(--accent-purple);
            padding: 20px 24px;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            margin: 24px 0;
            color: var(--text-white);
            font-style: italic;
        }

        .article-body table {
            width: 100%;
            border-collapse: collapse;
            margin: 24px 0;
            border-radius: var(--radius-sm);
            overflow: hidden;
        }

        .article-body table th {
            background: rgba(124, 77, 255, 0.4);
            color: var(--text-white);
            font-weight: 700;
            padding: 14px 18px;
            text-align: left;
            font-size: 0.95rem;
        }

        .article-body table td {
            background: rgba(24, 30, 66, 0.7);
            color: var(--text-soft);
            padding: 14px 18px;
            font-size: 0.95rem;
            border-bottom: 1px solid rgba(124, 77, 255, 0.15);
        }

        .article-not-found {
            text-align: center;
            padding: 80px 20px;
            background: rgba(17, 22, 57, 0.6);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-md);
        }

        .article-not-found i {
            font-size: 4rem;
            color: var(--accent-purple);
            margin-bottom: 20px;
            display: block;
        }

        .article-not-found h2 {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 16px;
        }

        .article-not-found p {
            color: var(--text-soft);
            margin-bottom: 24px;
            font-size: 1.05rem;
        }

        .article-not-found .btn-back {
            display: inline-block;
            padding: 14px 32px;
            border-radius: 10px;
            text-decoration: none;
            font-weight: 700;
            font-size: 1rem;
            color: var(--text-white);
            background: linear-gradient(135deg, var(--accent-purple), var(--accent-pink));
            box-shadow: var(--shadow-neon);
            transition: var(--transition);
        }

        .article-not-found .btn-back:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-cyan);
            color: var(--text-white);
        }

        /* ===== RELATED SECTION ===== */
        .related-section {
            padding: 40px 0 80px;
        }

        .related-section .section-title {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 30px;
            letter-spacing: -0.5px;
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .related-section .section-title i {
            color: var(--accent-cyan);
            font-size: 1.5rem;
        }

        .related-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 24px;
        }

        .related-card {
            background: rgba(17, 22, 57, 0.7);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: var(--transition);
            text-decoration: none;
            display: block;
        }

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

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

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

        .related-card .card-category {
            display: inline-block;
            padding: 4px 12px;
            border-radius: 16px;
            background: rgba(124, 77, 255, 0.3);
            color: var(--accent-cyan);
            font-size: 0.75rem;
            font-weight: 600;
            margin-bottom: 12px;
        }

        .related-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 10px;
            line-height: 1.4;
        }

        .related-card p {
            color: var(--text-muted);
            font-size: 0.85rem;
            line-height: 1.6;
            margin-bottom: 0;
        }

        /* ===== FAB ===== */
        .fab-custom {
            position: fixed;
            left: 20px;
            bottom: 80px;
            z-index: 1060;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent-purple), var(--accent-pink));
            border: 2px solid var(--accent-cyan);
            box-shadow: 0 0 25px rgba(124, 77, 255, 0.6), 0 0 40px rgba(0, 229, 255, 0.4);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: var(--transition);
            animation: fabPulse 2.5s ease-in-out infinite;
            text-decoration: none;
        }

        .fab-custom i {
            font-size: 1.4rem;
            color: var(--text-white);
        }

        .fab-custom:hover {
            transform: scale(1.1);
            box-shadow: 0 0 35px rgba(0, 229, 255, 0.8), 0 0 60px rgba(124, 77, 255, 0.5);
            animation-play-state: paused;
        }

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

        .fab-notification {
            position: absolute;
            top: -2px;
            right: -2px;
            width: 14px;
            height: 14px;
            background: var(--accent-gold);
            border-radius: 50%;
            border: 2px solid var(--primary-deep);
            animation: blink 1.5s ease-in-out infinite;
        }

        @keyframes fabPulse {
            0%, 100% {
                box-shadow: 0 0 25px rgba(124, 77, 255, 0.6), 0 0 40px rgba(0, 229, 255, 0.4);
            }
            50% {
                box-shadow: 0 0 35px rgba(124, 77, 255, 0.8), 0 0 55px rgba(0, 229, 255, 0.6);
            }
        }

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

        /* ===== FOOTER ===== */
        .footer-custom {
            background: rgba(10, 14, 39, 0.95);
            border-top: 1px solid rgba(124, 77, 255, 0.3);
            padding: 50px 0 30px;
            position: relative;
        }

        .footer-custom::before {
            content: '';
            position: absolute;
            top: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 60%;
            height: 1px;
            background: linear-gradient(90deg, transparent, var(--accent-purple), transparent);
        }

        .footer-brand {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 16px;
            font-weight: 800;
            font-size: 1.1rem;
            color: var(--text-white);
        }

        .footer-brand .brand-icon {
            width: 36px;
            height: 36px;
            font-size: 1rem;
            border-radius: 10px;
        }

        .footer-desc {
            color: var(--text-muted);
            font-size: 0.9rem;
            line-height: 1.7;
            max-width: 420px;
        }

        .footer-nav {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }

        .footer-nav li a {
            display: inline-block;
            padding: 8px 16px;
            text-decoration: none;
            color: var(--text-soft);
            font-size: 0.9rem;
            font-weight: 500;
            border-radius: 8px;
            transition: var(--transition);
        }

        .footer-nav li a:hover {
            color: var(--accent-cyan);
            background: rgba(124, 77, 255, 0.15);
        }

        .footer-copyright {
            margin-top: 32px;
            padding-top: 20px;
            border-top: 1px solid rgba(124, 77, 255, 0.2);
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            color: var(--text-muted);
            font-size: 0.85rem;
        }

        /* ===== RESPONSIVE ===== */
        @media (max-width: 1024px) {
            .container {
                padding-left: 20px;
                padding-right: 20px;
            }

            .article-hero h1 {
                font-size: 2.4rem;
            }

            .article-body {
                padding: 36px;
            }
        }

        @media (max-width: 768px) {
            .navbar-custom {
                padding: 12px 0;
            }

            .navbar-custom .container {
                flex-wrap: wrap;
            }

            .navbar-toggler-custom {
                display: flex;
            }

            .navbar-nav-custom {
                display: none;
                width: 100%;
                flex-direction: column;
                align-items: stretch;
                padding: 16px 0 8px;
                gap: 4px;
                order: 10;
            }

            .navbar-nav-custom.show {
                display: flex;
            }

            .navbar-nav-custom li a {
                padding: 12px 16px;
                display: block;
                text-align: left;
                font-size: 1rem;
            }

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

            .btn-login,
            .btn-signup {
                padding: 8px 16px;
                font-size: 0.85rem;
            }

            .article-hero {
                padding: 50px 0 30px;
            }

            .article-hero h1 {
                font-size: 2rem;
                letter-spacing: -0.5px;
            }

            .article-body {
                padding: 24px 20px;
                border-radius: var(--radius-sm);
            }

            .article-body h2 {
                font-size: 1.5rem;
            }

            .article-body h3 {
                font-size: 1.25rem;
            }

            .article-body p,
            .article-body li {
                font-size: 0.98rem;
            }

            .article-content-wrapper {
                padding: 30px 0 50px;
            }

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

            .related-section .section-title {
                font-size: 1.5rem;
            }

            .fab-custom {
                left: 16px;
                bottom: 70px;
                width: 50px;
                height: 50px;
            }

            .footer-custom {
                padding: 36px 0 24px;
            }

            .footer-copyright {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }

            .navbar-brand-custom {
                font-size: 1rem;
            }

            .brand-icon {
                width: 36px;
                height: 36px;
                font-size: 1rem;
                border-radius: 10px;
            }

            .nav-actions {
                gap: 6px;
            }

            .btn-login {
                padding: 8px 12px;
                font-size: 0.8rem;
            }

            .btn-signup {
                padding: 8px 14px;
                font-size: 0.8rem;
            }

            .article-hero h1 {
                font-size: 1.7rem;
            }

            .article-meta {
                gap: 12px;
                font-size: 0.8rem;
            }

            .article-body {
                padding: 20px 16px;
            }

            .article-body h2 {
                font-size: 1.3rem;
                margin-top: 28px;
            }

            .article-body p,
            .article-body li {
                font-size: 0.92rem;
            }

            .related-card .card-img {
                height: 150px;
            }
        }

/* roulang page: category1 */
:root {
            --bg-deep: #0f0c20;
            --bg-mid: #0b1a30;
            --bg-soft: #151b2e;
            --neon-lime: #ccff00;
            --neon-cyan: #00f0ff;
            --neon-pink: #ff007f;
            --text-white: #ffffff;
            --text-silver: #a6acaf;
            --text-muted: #7b8494;
            --border-glow: rgba(0, 240, 255, 0.25);
            --card-bg: rgba(21, 27, 46, 0.85);
            --card-hover: rgba(28, 36, 60, 0.95);
            --shadow-neon: 0 0 20px rgba(0, 240, 255, 0.3);
            --shadow-soft: 0 10px 30px rgba(0, 0, 0, 0.45);
            --radius-lg: 20px;
            --radius-md: 14px;
            --radius-sm: 10px;
            --spacing-section: 5rem;
            --spacing-card: 1.5rem;
        }
        * { box-sizing: border-box; margin: 0; padding: 0; }
        body {
            font-family: 'Be Vietnam Pro', sans-serif;
            background: radial-gradient(circle at 10% 20%, rgba(0,240,255,0.04) 0%, transparent 40%),
                        radial-gradient(circle at 90% 10%, rgba(204,255,0,0.03) 0%, transparent 35%),
                        linear-gradient(135deg, var(--bg-deep) 0%, var(--bg-mid) 100%);
            color: var(--text-white);
            line-height: 1.6;
            min-height: 100vh;
            -webkit-font-smoothing: antialiased;
        }
        a { text-decoration: none; color: inherit; transition: all 0.25s ease; }
        img { max-width: 100%; display: block; }
        h1, h2, h3, h4 { font-weight: 700; line-height: 1.25; letter-spacing: -0.01em; }
        .container { max-width: 1180px; padding-left: 24px; padding-right: 24px; }

        /* Navbar */
        .navbar-custom {
            background: rgba(15, 12, 32, 0.9);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid rgba(0, 240, 255, 0.12);
            position: sticky;
            top: 0;
            z-index: 1050;
            padding: 0.75rem 0;
        }
        .navbar-custom .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
        }
        .navbar-brand-custom {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 1.2rem;
            color: var(--text-white);
            letter-spacing: -0.02em;
        }
        .brand-icon {
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--neon-cyan), #0052ff);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.1rem;
            box-shadow: 0 0 16px rgba(0, 240, 255, 0.35);
        }
        .navbar-toggler-custom {
            background: none;
            border: 1px solid rgba(0, 240, 255, 0.3);
            border-radius: 8px;
            width: 42px;
            height: 42px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--neon-cyan);
            font-size: 1.2rem;
            cursor: pointer;
            transition: all 0.3s ease;
            display: none;
        }
        .navbar-toggler-custom:hover { background: rgba(0, 240, 255, 0.1); }
        .navbar-nav-custom {
            display: flex;
            align-items: center;
            gap: 1.5rem;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .navbar-nav-custom a {
            color: var(--text-silver);
            font-weight: 500;
            font-size: 0.95rem;
            padding: 0.4rem 0.2rem;
            position: relative;
            transition: color 0.3s;
        }
        .navbar-nav-custom a::after {
            content: '';
            position: absolute;
            bottom: -4px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--neon-cyan);
            transition: width 0.3s;
            box-shadow: 0 0 8px var(--neon-cyan);
        }
        .navbar-nav-custom a:hover,
        .navbar-nav-custom a.active { color: var(--text-white); }
        .navbar-nav-custom a:hover::after,
        .navbar-nav-custom a.active::after { width: 100%; }
        .nav-actions {
            display: flex;
            align-items: center;
            gap: 0.75rem;
        }
        .btn-login {
            color: var(--neon-cyan);
            font-weight: 600;
            font-size: 0.9rem;
            padding: 0.5rem 0.75rem;
            border: 1px solid transparent;
        }
        .btn-login:hover { color: var(--text-white); border-color: rgba(0, 240, 255, 0.3); border-radius: 8px; }
        .btn-signup {
            background: linear-gradient(135deg, var(--neon-cyan), #0052ff);
            color: #fff;
            font-weight: 700;
            font-size: 0.9rem;
            padding: 0.55rem 1.4rem;
            border-radius: 30px;
            border: none;
            box-shadow: 0 4px 18px rgba(0, 240, 255, 0.4);
            transition: all 0.3s;
            display: inline-block;
        }
        .btn-signup:hover { transform: translateY(-2px); box-shadow: 0 8px 28px rgba(0, 240, 255, 0.55); color: #fff; }

        /* Hero */
        .hero-category {
            padding: 4rem 0 3rem;
            position: relative;
        }
        .hero-badge {
            display: inline-block;
            background: rgba(0, 240, 255, 0.12);
            border: 1px solid rgba(0, 240, 255, 0.35);
            color: var(--neon-cyan);
            font-size: 0.8rem;
            font-weight: 600;
            padding: 0.4rem 1rem;
            border-radius: 30px;
            letter-spacing: 0.03em;
            margin-bottom: 1.2rem;
        }
        .hero-category h1 {
            font-size: clamp(2rem, 4vw, 3.2rem);
            font-weight: 800;
            margin-bottom: 1rem;
            background: linear-gradient(135deg, #fff 40%, var(--neon-cyan));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hero-category .lead {
            color: var(--text-silver);
            font-size: 1.1rem;
            max-width: 720px;
            line-height: 1.7;
        }
        .hero-visual {
            background: linear-gradient(145deg, rgba(21,27,46,0.9), rgba(11,26,48,0.9));
            border: 1px solid rgba(0, 240, 255, 0.18);
            border-radius: var(--radius-lg);
            padding: 1.2rem;
            box-shadow: var(--shadow-soft);
            position: relative;
            overflow: hidden;
        }
        .hero-visual img {
            border-radius: var(--radius-md);
            object-fit: cover;
            width: 100%;
            height: 260px;
        }
        .hero-visual .overlay-label {
            position: absolute;
            bottom: 1.5rem;
            left: 1.5rem;
            right: 1.5rem;
            background: rgba(0,0,0,0.65);
            backdrop-filter: blur(8px);
            padding: 0.8rem 1.2rem;
            border-radius: 10px;
            border-left: 3px solid var(--neon-cyan);
            color: #fff;
            font-weight: 500;
            font-size: 0.9rem;
        }

        /* Sections */
        .section-category {
            padding: 2.5rem 0;
        }
        .section-label {
            font-size: 0.8rem;
            font-weight: 700;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--neon-cyan);
            margin-bottom: 0.5rem;
        }
        .section-title {
            font-size: clamp(1.5rem, 2.5vw, 2.1rem);
            font-weight: 700;
            margin-bottom: 1rem;
        }
        .section-desc {
            color: var(--text-silver);
            max-width: 760px;
            font-size: 1rem;
            line-height: 1.7;
            margin-bottom: 2rem;
        }

        /* Process / Steps */
        .step-flow {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.5rem;
            margin-top: 1rem;
        }
        .step-item {
            background: var(--card-bg);
            border: 1px solid rgba(0, 240, 255, 0.1);
            border-radius: var(--radius-md);
            padding: 1.5rem 1.2rem;
            position: relative;
            transition: all 0.35s ease;
        }
        .step-item:hover {
            border-color: rgba(0, 240, 255, 0.4);
            transform: translateY(-5px);
            box-shadow: var(--shadow-neon);
        }
        .step-num {
            font-size: 2rem;
            font-weight: 800;
            background: linear-gradient(135deg, var(--neon-cyan), #0052ff);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            margin-bottom: 0.5rem;
        }
        .step-item h3 { font-size: 1.05rem; margin-bottom: 0.5rem; }
        .step-item p { color: var(--text-silver); font-size: 0.9rem; margin: 0; }

        /* Rule Cards */
        .rule-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 1.5rem;
        }
        .rule-card {
            background: var(--card-bg);
            border: 1px solid rgba(0, 240, 255, 0.08);
            border-radius: var(--radius-md);
            padding: 1.5rem;
            transition: all 0.3s;
            display: flex;
            flex-direction: column;
        }
        .rule-card:hover {
            border-color: rgba(0, 240, 255, 0.25);
            box-shadow: var(--shadow-soft);
        }
        .rule-icon {
            width: 44px;
            height: 44px;
            background: rgba(0, 240, 255, 0.1);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--neon-cyan);
            font-size: 1.2rem;
            margin-bottom: 1rem;
        }
        .rule-card h3 { font-size: 1.15rem; margin-bottom: 0.6rem; }
        .rule-card p { color: var(--text-silver); font-size: 0.95rem; margin: 0; }

        /* FAQ */
        .faq-wrap { max-width: 820px; margin: 0 auto; }
        .accordion-custom .accordion-item {
            background: var(--card-bg);
            border: 1px solid rgba(0, 240, 255, 0.08);
            border-radius: var(--radius-sm) !important;
            margin-bottom: 0.8rem;
            overflow: hidden;
        }
        .accordion-custom .accordion-button {
            background: transparent;
            color: var(--text-white);
            font-weight: 600;
            padding: 1.1rem 1.4rem;
            box-shadow: none;
            font-size: 0.98rem;
        }
        .accordion-custom .accordion-button:not(.collapsed) {
            background: rgba(0, 240, 255, 0.05);
            color: var(--neon-cyan);
            box-shadow: none;
        }
        .accordion-custom .accordion-button:focus { box-shadow: none; border-color: transparent; }
        .accordion-custom .accordion-body {
            color: var(--text-silver);
            padding: 0 1.4rem 1.4rem;
            font-size: 0.93rem;
            line-height: 1.7;
        }

        /* CTA */
        .cta-box {
            background: linear-gradient(145deg, rgba(21,27,46,0.95), rgba(11,26,48,0.95));
            border: 1px solid rgba(0, 240, 255, 0.2);
            border-radius: var(--radius-lg);
            padding: 3rem 2rem;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-box::before {
            content: '';
            position: absolute;
            top: -60%;
            left: -20%;
            width: 60%;
            height: 220%;
            background: radial-gradient(circle, rgba(0,240,255,0.08) 0%, transparent 70%);
            transform: rotate(20deg);
        }
        .cta-box h2 { font-size: 1.8rem; margin-bottom: 0.8rem; }
        .cta-box p { color: var(--text-silver); max-width: 560px; margin: 0 auto 1.5rem; }
        .btn-glow {
            background: linear-gradient(135deg, var(--neon-cyan), #0052ff);
            color: #fff;
            font-weight: 700;
            padding: 0.8rem 2.2rem;
            border-radius: 40px;
            border: none;
            box-shadow: 0 0 24px rgba(0, 240, 255, 0.5);
            display: inline-block;
            transition: all 0.3s;
        }
        .btn-glow:hover { transform: translateY(-3px); box-shadow: 0 0 40px rgba(0, 240, 255, 0.75); color: #fff; }

        /* Footer */
        .footer-custom {
            background: rgba(11, 12, 24, 0.95);
            border-top: 1px solid rgba(0, 240, 255, 0.1);
            padding: 3rem 0 1.5rem;
            margin-top: 2rem;
        }
        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 1.15rem;
            margin-bottom: 0.8rem;
        }
        .footer-desc {
            color: var(--text-muted);
            font-size: 0.9rem;
            line-height: 1.7;
            max-width: 480px;
        }
        .footer-nav {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 1.2rem;
            padding: 0;
            margin: 0;
            justify-content: flex-end;
        }
        .footer-nav a { color: var(--text-silver); font-size: 0.9rem; }
        .footer-nav a:hover { color: var(--neon-cyan); }
        .footer-copyright {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 0.8rem;
            padding-top: 1.5rem;
            margin-top: 2rem;
            border-top: 1px solid rgba(255,255,255,0.06);
            color: var(--text-muted);
            font-size: 0.8rem;
        }

        /* FAB */
        .fab-neon {
            position: fixed;
            left: 1.2rem;
            bottom: 6rem;
            z-index: 1050;
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: rgba(0,0,0,0.65);
            backdrop-filter: blur(10px);
            border: 2px solid transparent;
            background-image: linear-gradient(rgba(0,0,0,0.65), rgba(0,0,0,0.65)), linear-gradient(135deg, var(--neon-cyan), var(--neon-lime));
            background-origin: border-box;
            background-clip: padding-box, border-box;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--neon-cyan);
            font-size: 1.3rem;
            cursor: pointer;
            opacity: 0.65;
            box-shadow: 0 0 18px rgba(0,240,255,0.4);
            transition: all 0.3s;
        }
        .fab-neon:hover {
            opacity: 1;
            transform: scale(1.08);
            box-shadow: 0 0 32px rgba(0,240,255,0.7);
            color: #fff;
        }

        /* Responsive */
        @media (max-width: 991.98px) {
            .step-flow { grid-template-columns: repeat(2, 1fr); }
            .rule-grid { grid-template-columns: repeat(2, 1fr); }
            .footer-nav { justify-content: flex-start; }
        }
        @media (max-width: 767.98px) {
            .navbar-toggler-custom { display: flex; }
            .navbar-nav-custom {
                flex-basis: 100%;
                flex-direction: column;
                align-items: flex-start;
                gap: 0.5rem;
                padding: 1rem 0 0.5rem;
                display: none;
            }
            .navbar-nav-custom.open { display: flex; }
            .nav-actions { margin-left: auto; }
            .nav-actions .btn-login, .nav-actions .btn-signup { padding: 0.4rem 0.9rem; font-size: 0.8rem; }
            .hero-category { padding: 2.5rem 0 2rem; }
            .step-flow { grid-template-columns: 1fr; }
            .rule-grid { grid-template-columns: 1fr; }
            .hero-visual img { height: 200px; }
            .cta-box { padding: 2rem 1.2rem; }
            .footer-nav { flex-direction: column; gap: 0.6rem; }
            .fab-neon { bottom: 5rem; left: 1rem; }
        }
        @media (max-width: 519.98px) {
            .navbar-brand-custom { font-size: 1rem; }
            .brand-icon { width: 32px; height: 32px; font-size: 0.9rem; }
            .hero-category h1 { font-size: 1.7rem; }
            .section-title { font-size: 1.4rem; }
            .footer-copyright { flex-direction: column; }
        }

/* roulang page: category2 */
:root {
            --primary-bg: #0F0C20;
            --secondary-bg: #0B1A30;
            --accent-lime: #CCFF00;
            --accent-cyan: #00F0FF;
            --text-white: #FFFFFF;
            --text-silver: #A6ACAF;
            --text-muted: #7C828A;
            --border-neon: rgba(0, 240, 255, 0.4);
            --border-lime: rgba(204, 255, 0, 0.4);
            --radius-sm: 8px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --shadow-neon: 0 0 15px rgba(0, 240, 255, 0.5);
            --shadow-lime: 0 0 20px rgba(204, 255, 0, 0.3);
            --transition-fast: 0.2s ease;
            --transition-medium: 0.3s ease;
            --font-primary: 'Segoe UI', -apple-system, BlinkMacSystemFont, Roboto, 'Helvetica Neue', Arial, sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

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

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

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

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

        button,
        .btn {
            font-family: var(--font-primary);
            cursor: pointer;
            border: none;
            outline: none;
            transition: all var(--transition-medium);
        }

        button:focus-visible,
        a:focus-visible,
        .btn:focus-visible {
            outline: 2px solid var(--accent-cyan);
            outline-offset: 3px;
        }

        .container {
            max-width: 1200px;
            padding-left: 20px;
            padding-right: 20px;
        }

        /* Navigation */
        .navbar-custom {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1050;
            background: rgba(15, 12, 32, 0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-neon);
            padding: 12px 0;
        }

        .navbar-custom .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
        }

        .navbar-brand-custom {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--text-white);
            letter-spacing: 0.3px;
            white-space: nowrap;
        }

        .navbar-brand-custom:hover {
            color: var(--accent-cyan);
        }

        .brand-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent-lime), var(--accent-cyan));
            color: var(--primary-bg);
            font-size: 1.1rem;
            box-shadow: var(--shadow-neon);
        }

        .navbar-nav-custom {
            display: flex;
            align-items: center;
            gap: 8px;
            list-style: none;
            margin: 0;
            padding: 0;
            flex-wrap: wrap;
        }

        .navbar-nav-custom li a {
            display: inline-block;
            padding: 8px 16px;
            font-size: 0.92rem;
            font-weight: 600;
            color: var(--text-silver);
            border-radius: 20px;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .navbar-nav-custom li a:hover {
            color: var(--accent-cyan);
            background: rgba(0, 240, 255, 0.08);
        }

        .navbar-nav-custom li a.active {
            color: var(--primary-bg);
            background: var(--accent-cyan);
            box-shadow: var(--shadow-neon);
        }

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

        .btn-login {
            padding: 8px 18px;
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--text-white);
            background: transparent;
            border: 1px solid var(--border-neon);
            border-radius: 20px;
            transition: all var(--transition-fast);
        }

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

        .btn-signup {
            padding: 8px 20px;
            font-size: 0.9rem;
            font-weight: 700;
            color: var(--primary-bg);
            background: var(--accent-lime);
            border-radius: 20px;
            box-shadow: var(--shadow-lime);
            transition: all var(--transition-fast);
        }

        .btn-signup:hover {
            background: #e6ff4d;
            transform: translateY(-2px);
            box-shadow: 0 0 30px rgba(204, 255, 0, 0.5);
            color: var(--primary-bg);
        }

        .navbar-toggler-custom {
            display: none;
            background: transparent;
            color: var(--text-white);
            font-size: 1.5rem;
            border: 1px solid var(--border-neon);
            border-radius: 8px;
            padding: 6px 12px;
            transition: all var(--transition-fast);
        }

        .navbar-toggler-custom:hover {
            background: rgba(0, 240, 255, 0.1);
            color: var(--accent-cyan);
        }

        /* Hero */
        .hero-custom {
            padding: 140px 0 80px;
            background: linear-gradient(135deg, var(--primary-bg) 0%, var(--secondary-bg) 50%, #0F1A2E 100%);
            position: relative;
            overflow: hidden;
            border-bottom: 1px solid var(--border-neon);
        }

        .hero-custom::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 700px;
            height: 700px;
            background: radial-gradient(circle, rgba(0, 240, 255, 0.15) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero-custom::after {
            content: '';
            position: absolute;
            bottom: -40%;
            left: -10%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(204, 255, 0, 0.1) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

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

        .hero-badge {
            display: inline-block;
            padding: 6px 16px;
            font-size: 0.8rem;
            font-weight: 700;
            color: var(--accent-cyan);
            background: rgba(0, 240, 255, 0.1);
            border: 1px solid var(--border-neon);
            border-radius: 20px;
            margin-bottom: 20px;
            letter-spacing: 0.5px;
            text-transform: uppercase;
        }

        .hero-title {
            font-size: 3rem;
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 20px;
            color: var(--text-white);
            letter-spacing: -0.5px;
        }

        .hero-title .highlight {
            background: linear-gradient(135deg, var(--accent-lime), var(--accent-cyan));
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
        }

        .hero-desc {
            font-size: 1.1rem;
            color: var(--text-silver);
            max-width: 650px;
            margin-bottom: 30px;
            line-height: 1.7;
        }

        .hero-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
            margin-bottom: 40px;
        }

        .btn-primary-glow {
            padding: 12px 28px;
            font-size: 1rem;
            font-weight: 700;
            color: var(--primary-bg);
            background: var(--accent-lime);
            border-radius: 25px;
            box-shadow: var(--shadow-lime);
            transition: all var(--transition-medium);
        }

        .btn-primary-glow:hover {
            background: #e6ff4d;
            transform: translateY(-3px);
            box-shadow: 0 0 40px rgba(204, 255, 0, 0.6);
            color: var(--primary-bg);
        }

        .btn-secondary-glow {
            padding: 12px 28px;
            font-size: 1rem;
            font-weight: 700;
            color: var(--accent-cyan);
            background: transparent;
            border: 2px solid var(--border-neon);
            border-radius: 25px;
            transition: all var(--transition-medium);
        }

        .btn-secondary-glow:hover {
            background: rgba(0, 240, 255, 0.1);
            color: var(--accent-cyan);
            box-shadow: var(--shadow-neon);
            transform: translateY(-3px);
        }

        .hero-stats {
            display: flex;
            gap: 30px;
            flex-wrap: wrap;
            position: relative;
            z-index: 1;
        }

        .stat-item {
            display: flex;
            flex-direction: column;
            gap: 4px;
        }

        .stat-number {
            font-size: 2rem;
            font-weight: 800;
            color: var(--accent-cyan);
            line-height: 1;
        }

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

        .hero-image-wrapper {
            position: relative;
            z-index: 1;
            display: flex;
            align-items: center;
            justify-content: center;
        }

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

        /* Sections General */
        .section-custom {
            padding: 70px 0;
            position: relative;
        }

        .section-custom.alt-bg {
            background: var(--secondary-bg);
            border-top: 1px solid rgba(0, 240, 255, 0.15);
            border-bottom: 1px solid rgba(0, 240, 255, 0.15);
        }

        .section-title {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--text-white);
            letter-spacing: -0.3px;
        }

        .section-subtitle {
            font-size: 1rem;
            color: var(--text-silver);
            max-width: 700px;
            margin-bottom: 40px;
            line-height: 1.7;
        }

        .section-divider {
            width: 60px;
            height: 4px;
            background: linear-gradient(90deg, var(--accent-lime), var(--accent-cyan));
            border-radius: 2px;
            margin-bottom: 20px;
        }

        /* Info Blocks */
        .info-block {
            display: flex;
            gap: 20px;
            align-items: flex-start;
            padding: 24px;
            background: rgba(15, 12, 32, 0.7);
            border: 1px solid var(--border-neon);
            border-radius: var(--radius-md);
            transition: all var(--transition-medium);
            height: 100%;
        }

        .info-block:hover {
            border-color: var(--accent-cyan);
            box-shadow: var(--shadow-neon);
            transform: translateY(-3px);
        }

        .info-icon {
            flex-shrink: 0;
            width: 48px;
            height: 48px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 12px;
            background: rgba(0, 240, 255, 0.1);
            color: var(--accent-cyan);
            font-size: 1.4rem;
            border: 1px solid var(--border-neon);
        }

        .info-block h3 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text-white);
        }

        .info-block p {
            font-size: 0.92rem;
            color: var(--text-silver);
            margin-bottom: 0;
            line-height: 1.6;
        }

        /* Strategy Card */
        .strategy-card {
            background: rgba(15, 12, 32, 0.8);
            border: 1px solid var(--border-neon);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition-medium);
            height: 100%;
        }

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

        .strategy-card .card-img-wrap {
            position: relative;
            overflow: hidden;
            height: 200px;
        }

        .strategy-card .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-medium);
        }

        .strategy-card:hover .card-img-wrap img {
            transform: scale(1.05);
        }

        .strategy-card .card-body-custom {
            padding: 22px;
        }

        .strategy-card .card-tag {
            display: inline-block;
            padding: 4px 12px;
            font-size: 0.75rem;
            font-weight: 700;
            color: var(--accent-lime);
            background: rgba(204, 255, 0, 0.1);
            border: 1px solid var(--border-lime);
            border-radius: 12px;
            margin-bottom: 10px;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }

        .strategy-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--text-white);
            line-height: 1.4;
        }

        .strategy-card p {
            font-size: 0.9rem;
            color: var(--text-silver);
            margin-bottom: 15px;
            line-height: 1.6;
        }

        .strategy-card .btn-link-arrow {
            font-size: 0.9rem;
            font-weight: 700;
            color: var(--accent-cyan);
            transition: all var(--transition-fast);
        }

        .strategy-card .btn-link-arrow:hover {
            color: var(--accent-lime);
            transform: translateX(3px);
        }

        /* Step Process */
        .step-list {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .step-item {
            display: flex;
            gap: 20px;
            align-items: flex-start;
            padding: 22px;
            background: rgba(15, 12, 32, 0.7);
            border-left: 3px solid var(--accent-cyan);
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
            transition: all var(--transition-fast);
        }

        .step-item:hover {
            background: rgba(0, 240, 255, 0.05);
            border-left-color: var(--accent-lime);
        }

        .step-number {
            flex-shrink: 0;
            width: 40px;
            height: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent-lime), var(--accent-cyan));
            color: var(--primary-bg);
            font-weight: 800;
            font-size: 1.1rem;
        }

        .step-item h3 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 6px;
            color: var(--text-white);
        }

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

        /* FAQ */
        .accordion-custom .accordion-item {
            background: rgba(15, 12, 32, 0.8);
            border: 1px solid var(--border-neon);
            border-radius: var(--radius-md) !important;
            margin-bottom: 14px;
            overflow: hidden;
        }

        .accordion-custom .accordion-button {
            background: transparent;
            color: var(--text-white);
            font-weight: 700;
            font-size: 1rem;
            padding: 18px 22px;
            box-shadow: none;
            border-radius: var(--radius-md) !important;
        }

        .accordion-custom .accordion-button:not(.collapsed) {
            background: rgba(0, 240, 255, 0.08);
            color: var(--accent-cyan);
            box-shadow: none;
        }

        .accordion-custom .accordion-button:focus {
            box-shadow: 0 0 0 3px rgba(0, 240, 255, 0.3);
            border-color: var(--accent-cyan);
        }

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

        .accordion-custom .accordion-body {
            padding: 18px 22px;
            color: var(--text-silver);
            font-size: 0.92rem;
            line-height: 1.7;
        }

        /* CTA */
        .cta-section {
            padding: 80px 0;
            background: linear-gradient(135deg, var(--secondary-bg) 0%, var(--primary-bg) 100%);
            border-top: 1px solid var(--border-neon);
            border-bottom: 1px solid var(--border-neon);
        }

        .cta-box {
            background: rgba(0, 240, 255, 0.05);
            border: 1px solid var(--border-neon);
            border-radius: var(--radius-lg);
            padding: 50px 40px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-box::before {
            content: '';
            position: absolute;
            top: -100px;
            right: -100px;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(204, 255, 0, 0.15) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-box h2 {
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: 15px;
            color: var(--text-white);
        }

        .cta-box p {
            font-size: 1rem;
            color: var(--text-silver);
            max-width: 600px;
            margin: 0 auto 30px;
            line-height: 1.7;
        }

        /* Footer */
        .footer-custom {
            background: var(--primary-bg);
            padding: 60px 0 30px;
            border-top: 1px solid var(--border-neon);
        }

        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 15px;
        }

        .footer-brand .brand-icon {
            width: 32px;
            height: 32px;
            font-size: 0.95rem;
        }

        .footer-desc {
            font-size: 0.9rem;
            color: var(--text-silver);
            line-height: 1.7;
            max-width: 400px;
        }

        .footer-nav {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            justify-content: flex-end;
        }

        .footer-nav li a {
            display: inline-block;
            padding: 6px 14px;
            font-size: 0.88rem;
            font-weight: 600;
            color: var(--text-silver);
            border-radius: 16px;
            transition: all var(--transition-fast);
        }

        .footer-nav li a:hover {
            color: var(--accent-cyan);
            background: rgba(0, 240, 255, 0.08);
        }

        .footer-copyright {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 10px;
            padding-top: 25px;
            margin-top: 35px;
            border-top: 1px solid rgba(0, 240, 255, 0.15);
            font-size: 0.82rem;
            color: var(--text-muted);
        }

        /* FAB */
        .fab-custom {
            position: fixed;
            left: 20px;
            bottom: 90px;
            z-index: 999;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: rgba(15, 12, 32, 0.85);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            border: 2px solid transparent;
            background-image: linear-gradient(rgba(15, 12, 32, 0.85), rgba(15, 12, 32, 0.85)), linear-gradient(135deg, var(--accent-lime), var(--accent-cyan));
            background-origin: border-box;
            background-clip: padding-box, border-box;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-cyan);
            font-size: 1.4rem;
            box-shadow: var(--shadow-neon);
            opacity: 0.7;
            transition: all var(--transition-medium);
            cursor: pointer;
        }

        .fab-custom:hover {
            opacity: 1;
            transform: scale(1.1);
            box-shadow: 0 0 25px rgba(0, 240, 255, 0.7);
            color: var(--accent-lime);
        }

        .fab-custom:active {
            transform: scale(0.95);
            border-color: var(--accent-lime);
            color: var(--accent-lime);
        }

        .fab-custom .notification-dot {
            position: absolute;
            top: 2px;
            right: 2px;
            width: 12px;
            height: 12px;
            background: #FF007F;
            border-radius: 50%;
            border: 2px solid var(--primary-bg);
            animation: pulse-dot 1.5s infinite;
        }

        @keyframes pulse-dot {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.4; }
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .hero-title {
                font-size: 2.4rem;
            }
            .hero-image-wrapper img {
                max-height: 350px;
            }
        }

        @media (max-width: 768px) {
            .navbar-toggler-custom {
                display: inline-block;
            }

            .navbar-nav-custom {
                display: none;
                width: 100%;
                flex-direction: column;
                align-items: stretch;
                gap: 6px;
                padding: 10px 0;
            }

            .navbar-nav-custom.show {
                display: flex;
            }

            .navbar-nav-custom li a {
                display: block;
                text-align: left;
                padding: 10px 16px;
                border-radius: 8px;
            }

            .nav-actions {
                display: flex;
                gap: 8px;
            }

            .btn-login,
            .btn-signup {
                padding: 7px 14px;
                font-size: 0.8rem;
                white-space: nowrap;
            }

            .hero-custom {
                padding: 110px 0 50px;
            }

            .hero-title {
                font-size: 2rem;
            }

            .hero-desc {
                font-size: 0.95rem;
            }

            .hero-actions {
                gap: 10px;
            }

            .btn-primary-glow,
            .btn-secondary-glow {
                padding: 10px 20px;
                font-size: 0.9rem;
            }

            .hero-stats {
                gap: 20px;
            }

            .stat-number {
                font-size: 1.5rem;
            }

            .section-custom {
                padding: 50px 0;
            }

            .section-title {
                font-size: 1.6rem;
            }

            .info-block {
                padding: 18px;
                gap: 15px;
            }

            .info-icon {
                width: 40px;
                height: 40px;
                font-size: 1.1rem;
            }

            .strategy-card .card-img-wrap {
                height: 160px;
            }

            .cta-box {
                padding: 35px 25px;
            }

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

            .footer-nav {
                justify-content: flex-start;
            }

            .fab-custom {
                left: 15px;
                bottom: 80px;
                width: 48px;
                height: 48px;
                font-size: 1.2rem;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding-left: 15px;
                padding-right: 15px;
            }

            .navbar-custom .container {
                gap: 8px;
            }

            .navbar-brand-custom {
                font-size: 1rem;
            }

            .brand-icon {
                width: 30px;
                height: 30px;
                font-size: 0.9rem;
            }

            .hero-title {
                font-size: 1.7rem;
            }

            .hero-badge {
                font-size: 0.7rem;
                padding: 4px 12px;
            }

            .hero-actions {
                flex-direction: column;
                align-items: stretch;
            }

            .btn-primary-glow,
            .btn-secondary-glow {
                text-align: center;
            }

            .hero-stats {
                gap: 15px;
            }

            .stat-number {
                font-size: 1.3rem;
            }

            .stat-label {
                font-size: 0.75rem;
            }

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

            .step-item {
                flex-direction: column;
                gap: 12px;
                padding: 18px;
            }

            .step-number {
                width: 35px;
                height: 35px;
                font-size: 1rem;
            }

            .cta-box h2 {
                font-size: 1.3rem;
            }

            .footer-copyright {
                flex-direction: column;
                text-align: center;
            }
        }

/* roulang page: category3 */
:root {
            --bg-primary: #0B0C12;
            --bg-secondary: #10121C;
            --bg-card: #151829;
            --bg-card-hover: #1A1E35;
            --purple-glow: #7C3AED;
            --cyan-glow: #22D3EE;
            --pink-glow: #EC4899;
            --text-white: #FFFFFF;
            --text-gray: #A6ACAF;
            --text-muted: #6B7280;
            --border-glass: rgba(124, 58, 237, 0.35);
            --border-cyan: rgba(34, 211, 238, 0.4);
            --radius-sm: 12px;
            --radius-md: 20px;
            --radius-lg: 28px;
            --shadow-soft: 0 8px 24px rgba(0, 0, 0, 0.35);
            --shadow-glow: 0 0 20px rgba(124, 58, 237, 0.35);
            --shadow-cyan: 0 0 18px rgba(34, 211, 238, 0.4);
            --transition-base: 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', -apple-system, BlinkMacSystemFont, sans-serif;
            background: var(--bg-primary);
            color: var(--text-white);
            line-height: 1.65;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
            background-image: 
                radial-gradient(ellipse at 15% 20%, rgba(124, 58, 237, 0.12) 0%, transparent 50%),
                radial-gradient(ellipse at 85% 70%, rgba(34, 211, 238, 0.08) 0%, transparent 50%),
                radial-gradient(ellipse at 50% 90%, rgba(236, 72, 153, 0.06) 0%, transparent 45%);
        }

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

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

        .container {
            max-width: 1200px;
        }

        /* ===== Navbar Custom ===== */
        .navbar-custom {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(11, 12, 18, 0.85);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border-glass);
            padding: 0;
            transition: var(--transition-base);
        }

        .navbar-custom .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding-top: 14px;
            padding-bottom: 14px;
            flex-wrap: wrap;
            gap: 10px;
        }

        .navbar-brand-custom {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 1.25rem;
            color: var(--text-white);
            letter-spacing: -0.5px;
        }

        .navbar-brand-custom .brand-icon {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--purple-glow), var(--cyan-glow));
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.1rem;
            box-shadow: var(--shadow-glow);
        }

        .navbar-brand-custom:hover {
            color: #fff;
        }

        .navbar-toggler-custom {
            display: none;
            background: var(--bg-card);
            border: 1px solid var(--border-glass);
            border-radius: 10px;
            padding: 8px 14px;
            color: var(--text-white);
            font-size: 1.3rem;
            cursor: pointer;
            transition: var(--transition-base);
        }

        .navbar-toggler-custom:hover {
            background: var(--bg-card-hover);
            border-color: var(--cyan-glow);
        }

        .navbar-nav-custom {
            display: flex;
            align-items: center;
            gap: 6px;
            list-style: none;
            margin: 0;
            padding: 0;
            flex-wrap: wrap;
        }

        .navbar-nav-custom li a {
            display: inline-block;
            padding: 8px 16px;
            border-radius: 50px;
            font-weight: 500;
            font-size: 0.92rem;
            color: var(--text-gray);
            transition: var(--transition-base);
            white-space: nowrap;
        }

        .navbar-nav-custom li a:hover {
            color: var(--text-white);
            background: rgba(124, 58, 237, 0.18);
        }

        .navbar-nav-custom li a.active {
            color: var(--text-white);
            background: linear-gradient(135deg, var(--purple-glow), var(--cyan-glow));
            box-shadow: 0 0 16px rgba(124, 58, 237, 0.4);
        }

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

        .btn-login,
        .btn-signup {
            padding: 9px 22px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.9rem;
            transition: var(--transition-base);
            white-space: nowrap;
            display: inline-block;
        }

        .btn-login {
            background: transparent;
            border: 1px solid rgba(166, 172, 175, 0.5);
            color: var(--text-white);
        }

        .btn-login:hover {
            border-color: var(--cyan-glow);
            color: var(--cyan-glow);
            box-shadow: var(--shadow-cyan);
        }

        .btn-signup {
            background: linear-gradient(135deg, var(--purple-glow), var(--pink-glow));
            color: #fff;
            border: none;
            box-shadow: var(--shadow-glow);
        }

        .btn-signup:hover {
            background: linear-gradient(135deg, #8B5CF6, #EC4899);
            color: #fff;
            box-shadow: 0 0 24px rgba(236, 72, 153, 0.5);
            transform: translateY(-1px);
        }

        /* ===== Page Banner ===== */
        .page-banner {
            padding: 140px 0 60px;
            position: relative;
            background: linear-gradient(180deg, rgba(11, 12, 18, 0.9) 0%, rgba(11, 12, 18, 0.7) 100%),
                        url('/assets/images/backpic/back-2.jpg') center/cover no-repeat;
            border-bottom: 1px solid var(--border-glass);
        }

        .page-banner::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 120px;
            background: linear-gradient(to bottom, transparent, var(--bg-primary));
            pointer-events: none;
        }

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

        .breadcrumb-custom {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-bottom: 20px;
        }

        .breadcrumb-custom a {
            color: var(--cyan-glow);
        }

        .breadcrumb-custom a:hover {
            color: var(--text-white);
        }

        .breadcrumb-custom .separator {
            opacity: 0.5;
        }

        .page-banner h1 {
            font-size: 2.8rem;
            font-weight: 800;
            letter-spacing: -1px;
            margin-bottom: 18px;
            line-height: 1.2;
            background: linear-gradient(135deg, #fff 30%, var(--cyan-glow) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .page-banner .banner-subtitle {
            font-size: 1.1rem;
            color: var(--text-gray);
            max-width: 680px;
            line-height: 1.7;
        }

        /* ===== Section Base ===== */
        .section-custom {
            padding: 70px 0;
            position: relative;
        }

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

        .section-label {
            display: inline-block;
            padding: 6px 16px;
            border-radius: 50px;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.5px;
            text-transform: uppercase;
            background: rgba(34, 211, 238, 0.12);
            color: var(--cyan-glow);
            border: 1px solid rgba(34, 211, 238, 0.25);
            margin-bottom: 16px;
        }

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

        .section-desc {
            font-size: 1.05rem;
            color: var(--text-gray);
            max-width: 720px;
            line-height: 1.7;
            margin-bottom: 40px;
        }

        /* ===== Feature Highlight ===== */
        .feature-highlight {
            background: var(--bg-card);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-lg);
            padding: 36px;
            position: relative;
            overflow: hidden;
            transition: var(--transition-base);
            height: 100%;
        }

        .feature-highlight::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--purple-glow), var(--cyan-glow), var(--pink-glow));
            opacity: 0;
            transition: var(--transition-base);
        }

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

        .feature-highlight:hover::before {
            opacity: 1;
        }

        .feature-icon {
            width: 56px;
            height: 56px;
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            margin-bottom: 20px;
            background: linear-gradient(135deg, rgba(124, 58, 237, 0.25), rgba(34, 211, 238, 0.25));
            color: var(--cyan-glow);
            border: 1px solid var(--border-glass);
        }

        .feature-highlight h3 {
            font-size: 1.35rem;
            font-weight: 700;
            margin-bottom: 12px;
        }

        .feature-highlight p {
            color: var(--text-gray);
            font-size: 0.98rem;
            margin-bottom: 0;
            line-height: 1.7;
        }

        /* ===== Steps Timeline ===== */
        .steps-timeline {
            position: relative;
            padding-left: 32px;
        }

        .steps-timeline::before {
            content: '';
            position: absolute;
            left: 8px;
            top: 8px;
            bottom: 8px;
            width: 2px;
            background: linear-gradient(180deg, var(--purple-glow), var(--cyan-glow), var(--pink-glow));
            opacity: 0.4;
        }

        .step-item {
            position: relative;
            padding-bottom: 36px;
            padding-left: 20px;
        }

        .step-item:last-child {
            padding-bottom: 0;
        }

        .step-item::before {
            content: '';
            position: absolute;
            left: -32px;
            top: 6px;
            width: 18px;
            height: 18px;
            border-radius: 50%;
            background: var(--bg-primary);
            border: 3px solid var(--cyan-glow);
            box-shadow: 0 0 12px rgba(34, 211, 238, 0.5);
            z-index: 2;
        }

        .step-item .step-number {
            display: inline-block;
            padding: 4px 12px;
            border-radius: 50px;
            font-size: 0.8rem;
            font-weight: 700;
            background: rgba(124, 58, 237, 0.2);
            color: #C4B5FD;
            margin-bottom: 10px;
            letter-spacing: 0.5px;
        }

        .step-item h3 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 8px;
        }

        .step-item p {
            color: var(--text-gray);
            font-size: 0.98rem;
            margin-bottom: 0;
        }

        /* ===== Tip Card ===== */
        .tip-card {
            background: var(--bg-card);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-md);
            padding: 28px;
            transition: var(--transition-base);
            height: 100%;
            position: relative;
        }

        .tip-card:hover {
            background: var(--bg-card-hover);
            border-color: var(--cyan-glow);
            box-shadow: var(--shadow-cyan);
            transform: translateY(-3px);
        }

        .tip-card .tip-badge {
            display: inline-block;
            padding: 5px 14px;
            border-radius: 50px;
            font-size: 0.78rem;
            font-weight: 700;
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }

        .tip-badge.purple {
            background: rgba(124, 58, 237, 0.18);
            color: #C4B5FD;
        }

        .tip-badge.cyan {
            background: rgba(34, 211, 238, 0.15);
            color: var(--cyan-glow);
        }

        .tip-badge.pink {
            background: rgba(236, 72, 153, 0.18);
            color: #F9A8D4;
        }

        .tip-card h3 {
            font-size: 1.25rem;
            font-weight: 700;
            margin-bottom: 12px;
        }

        .tip-card p {
            color: var(--text-gray);
            font-size: 0.96rem;
            margin-bottom: 0;
            line-height: 1.7;
        }

        /* ===== FAQ ===== */
        .faq-custom {
            max-width: 820px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-md);
            margin-bottom: 16px;
            overflow: hidden;
            transition: var(--transition-base);
        }

        .faq-item:hover {
            border-color: rgba(34, 211, 238, 0.4);
        }

        .faq-item .faq-question {
            padding: 20px 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            cursor: pointer;
            font-weight: 600;
            font-size: 1.05rem;
            gap: 16px;
            user-select: none;
        }

        .faq-item .faq-question i {
            color: var(--cyan-glow);
            transition: var(--transition-base);
            font-size: 1.1rem;
            flex-shrink: 0;
        }

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

        .faq-item .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease;
            padding: 0 24px;
        }

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

        .faq-item .faq-answer p {
            color: var(--text-gray);
            margin: 0;
            font-size: 0.96rem;
            line-height: 1.7;
        }

        /* ===== CTA ===== */
        .cta-section {
            padding: 70px 0;
            position: relative;
        }

        .cta-box {
            background: linear-gradient(135deg, rgba(124, 58, 237, 0.25), rgba(34, 211, 238, 0.15));
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-lg);
            padding: 48px 40px;
            position: relative;
            overflow: hidden;
            text-align: center;
        }

        .cta-box::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -30%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(236, 72, 153, 0.2) 0%, transparent 70%);
            pointer-events: none;
        }

        .cta-box h2 {
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: 14px;
            letter-spacing: -0.5px;
        }

        .cta-box p {
            color: var(--text-gray);
            font-size: 1.05rem;
            max-width: 560px;
            margin: 0 auto 28px;
            line-height: 1.7;
        }

        .btn-cta-primary {
            padding: 13px 36px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 1rem;
            background: linear-gradient(135deg, var(--purple-glow), var(--pink-glow));
            color: #fff;
            border: none;
            box-shadow: var(--shadow-glow);
            transition: var(--transition-base);
            display: inline-block;
        }

        .btn-cta-primary:hover {
            background: linear-gradient(135deg, #8B5CF6, #EC4899);
            color: #fff;
            box-shadow: 0 0 28px rgba(236, 72, 153, 0.55);
            transform: translateY(-2px);
        }

        /* ===== Footer ===== */
        .footer-custom {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-glass);
            padding: 56px 0 30px;
            position: relative;
        }

        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 1.2rem;
            color: var(--text-white);
            margin-bottom: 16px;
        }

        .footer-brand .brand-icon {
            width: 36px;
            height: 36px;
            border-radius: 9px;
            background: linear-gradient(135deg, var(--purple-glow), var(--cyan-glow));
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1rem;
        }

        .footer-desc {
            color: var(--text-gray);
            font-size: 0.93rem;
            line-height: 1.7;
            max-width: 420px;
        }

        .footer-nav {
            list-style: none;
            padding: 0;
            margin: 0;
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 12px;
        }

        .footer-nav li a {
            color: var(--text-gray);
            font-size: 0.93rem;
            transition: var(--transition-base);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .footer-nav li a::before {
            content: '▹';
            color: var(--cyan-glow);
            font-size: 0.8rem;
        }

        .footer-nav li a:hover {
            color: var(--cyan-glow);
        }

        .footer-copyright {
            margin-top: 40px;
            padding-top: 20px;
            border-top: 1px solid rgba(166, 172, 175, 0.2);
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 10px;
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        /* ===== FAB ===== */
        .fab-custom {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: 999;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: rgba(11, 12, 18, 0.75);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 2px solid transparent;
            background-clip: padding-box;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--cyan-glow);
            font-size: 1.3rem;
            cursor: pointer;
            box-shadow: 0 0 18px rgba(34, 211, 238, 0.4);
            opacity: 0.7;
            transition: var(--transition-base);
            animation: fabFloat 3s ease-in-out infinite;
        }

        .fab-custom::before {
            content: '';
            position: absolute;
            inset: -2px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--cyan-glow), var(--purple-glow), var(--pink-glow));
            z-index: -1;
            opacity: 0.8;
        }

        .fab-custom:hover {
            opacity: 1;
            box-shadow: 0 0 28px rgba(34, 211, 238, 0.65);
            transform: scale(1.08);
        }

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

        .fab-notification {
            position: absolute;
            top: 4px;
            right: 4px;
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: var(--pink-glow);
            box-shadow: 0 0 8px rgba(236, 72, 153, 0.8);
            animation: blink 1.5s ease-in-out infinite;
        }

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

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .page-banner h1 {
                font-size: 2.3rem;
            }
            .section-title {
                font-size: 1.8rem;
            }
        }

        @media (max-width: 768px) {
            .navbar-custom .container {
                padding-top: 12px;
                padding-bottom: 12px;
            }
            .navbar-toggler-custom {
                display: block;
            }
            .navbar-nav-custom {
                display: none;
                width: 100%;
                flex-direction: column;
                align-items: stretch;
                padding-top: 12px;
                gap: 4px;
            }
            .navbar-nav-custom.show {
                display: flex;
            }
            .navbar-nav-custom li a {
                display: block;
                text-align: left;
                padding: 10px 16px;
            }
            .nav-actions {
                display: flex;
                gap: 8px;
            }
            .btn-login,
            .btn-signup {
                padding: 8px 16px;
                font-size: 0.85rem;
            }
            .page-banner {
                padding: 120px 0 50px;
            }
            .page-banner h1 {
                font-size: 1.9rem;
            }
            .section-custom {
                padding: 50px 0;
            }
            .section-title {
                font-size: 1.6rem;
            }
            .feature-highlight {
                padding: 24px;
            }
            .tip-card {
                padding: 22px;
            }
            .cta-box {
                padding: 36px 24px;
            }
            .cta-box h2 {
                font-size: 1.5rem;
            }
            .footer-copyright {
                flex-direction: column;
                text-align: center;
                gap: 6px;
            }
            .footer-nav {
                grid-template-columns: 1fr;
            }
            .fab-custom {
                width: 48px;
                height: 48px;
                font-size: 1.1rem;
                left: 12px;
                bottom: 80px;
            }
        }

        @media (max-width: 520px) {
            .navbar-brand-custom {
                font-size: 1rem;
            }
            .navbar-brand-custom .brand-icon {
                width: 32px;
                height: 32px;
                font-size: 0.9rem;
            }
            .btn-login,
            .btn-signup {
                padding: 7px 12px;
                font-size: 0.8rem;
            }
            .page-banner h1 {
                font-size: 1.6rem;
            }
            .banner-subtitle {
                font-size: 0.95rem;
            }
            .section-title {
                font-size: 1.4rem;
            }
            .tip-card h3,
            .feature-highlight h3 {
                font-size: 1.1rem;
            }
        }