/* roulang page: index */
:root {
            --bg-primary: #0B3C25;
            --bg-secondary: #062315;
            --bg-card: #0F3A26;
            --accent-gold: #FFCC00;
            --accent-lime: #32CD32;
            --text-primary: #FFFDF0;
            --text-secondary: #C5E2D2;
            --text-muted: #8FBFAA;
            --border-subtle: rgba(255, 204, 0, 0.25);
            --border-active: #FFCC00;
            --shadow-card: 0 8px 24px rgba(0, 0, 0, 0.3);
            --shadow-gold: 0 4px 20px rgba(255, 204, 0, 0.25);
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --font-main: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
            --font-heading: 'Be Vietnam Pro', 'Inter', sans-serif;
            --spacing-sm: 12px;
            --spacing-md: 24px;
            --spacing-lg: 48px;
            --spacing-xl: 72px;
            --transition-fast: 0.2s ease;
            --transition-smooth: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
        }

        * {
            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-main);
            background: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.65;
            min-height: 100vh;
            overflow-x: hidden;
        }

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

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

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

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

        button:focus-visible, .btn:focus-visible, a:focus-visible {
            outline: 2px solid var(--accent-lime);
            outline-offset: 3px;
            border-radius: 4px;
        }

        .container {
            width: min(1200px, 92%);
            margin: 0 auto;
            padding: 0 var(--spacing-md);
        }

        /* ===== HEADER / NAV ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(6, 35, 21, 0.96);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-subtle);
            padding: 0;
            height: 72px;
            display: flex;
            align-items: center;
        }

        .nav-wrapper {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: var(--spacing-md);
            width: 100%;
        }

        .logo {
            font-family: var(--font-heading);
            font-weight: 800;
            font-size: 1.25rem;
            color: var(--accent-gold);
            letter-spacing: -0.01em;
            white-space: nowrap;
            transition: opacity var(--transition-fast);
        }

        .logo:hover {
            opacity: 0.85;
            color: var(--accent-gold);
        }

        .logo .logo-icon {
            color: var(--accent-lime);
            margin-right: 6px;
        }

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

        .nav-menu li a {
            color: var(--text-secondary);
            font-weight: 500;
            font-size: 0.95rem;
            padding: 8px 14px;
            border-radius: 8px;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .nav-menu li a:hover {
            color: var(--accent-gold);
            background: rgba(255, 204, 0, 0.08);
        }

        .nav-menu li a.active {
            color: var(--accent-gold);
            background: rgba(255, 204, 0, 0.12);
            font-weight: 700;
        }

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

        .btn-outline {
            background: transparent;
            border: 1.5px solid var(--border-subtle);
            color: var(--text-primary);
            padding: 10px 20px;
            border-radius: 10px;
            font-weight: 600;
            font-size: 0.9rem;
            transition: all var(--transition-smooth);
        }

        .btn-outline:hover {
            border-color: var(--accent-gold);
            color: var(--accent-gold);
            background: rgba(255, 204, 0, 0.06);
        }

        .btn-solid {
            background: linear-gradient(135deg, var(--accent-gold), #FFE566);
            color: #0B3C25;
            padding: 10px 24px;
            border-radius: 10px;
            font-weight: 800;
            font-size: 0.9rem;
            box-shadow: var(--shadow-gold);
            transition: all var(--transition-smooth);
            white-space: nowrap;
        }

        .btn-solid:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(255, 204, 0, 0.4);
            color: #062315;
        }

        .btn-solid:active {
            transform: translateY(0);
            box-shadow: 0 2px 10px rgba(255, 204, 0, 0.3);
        }

        .mobile-toggle {
            display: none;
            background: transparent;
            color: var(--text-primary);
            font-size: 1.6rem;
            padding: 8px;
            border-radius: 8px;
            border: 1px solid var(--border-subtle);
            transition: all var(--transition-fast);
        }

        .mobile-toggle:hover {
            background: rgba(255, 204, 0, 0.1);
            border-color: var(--accent-gold);
        }

        /* ===== HERO ===== */
        .hero {
            padding: 140px 0 90px;
            background-image: linear-gradient(rgba(6, 35, 21, 0.85), rgba(6, 35, 21, 0.95)), url('/assets/images/backpic/back-1.jpg');
            background-size: cover;
            background-position: center;
            position: relative;
            min-height: 90vh;
            display: flex;
            align-items: center;
        }

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

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

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

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 204, 0, 0.12);
            border: 1px solid var(--border-subtle);
            color: var(--accent-gold);
            padding: 8px 18px;
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 700;
            letter-spacing: 0.3px;
            margin-bottom: var(--spacing-md);
        }

        .hero-badge i {
            color: var(--accent-lime);
        }

        .hero h1 {
            font-family: var(--font-heading);
            font-size: clamp(2rem, 4.5vw, 3.5rem);
            font-weight: 900;
            line-height: 1.15;
            color: var(--text-primary);
            margin-bottom: var(--spacing-md);
            letter-spacing: -0.02em;
        }

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

        .hero h1 .highlight::after {
            content: '';
            position: absolute;
            bottom: 4px;
            left: 0;
            right: 0;
            height: 6px;
            background: rgba(255, 204, 0, 0.35);
            border-radius: 3px;
            z-index: -1;
        }

        .hero-description {
            font-size: 1.05rem;
            color: var(--text-secondary);
            max-width: 540px;
            margin-bottom: var(--spacing-lg);
            line-height: 1.7;
        }

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

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

        .hero-stat .stat-number {
            font-size: 1.6rem;
            font-weight: 900;
            color: var(--accent-gold);
            font-family: var(--font-heading);
        }

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

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

        .btn-large {
            padding: 16px 32px;
            font-size: 1rem;
            border-radius: 14px;
        }

        .btn-secondary {
            background: rgba(255, 255, 255, 0.08);
            border: 1.5px solid rgba(255, 255, 255, 0.2);
            color: var(--text-primary);
            padding: 16px 28px;
            border-radius: 14px;
            font-weight: 700;
            font-size: 1rem;
            transition: all var(--transition-smooth);
        }

        .btn-secondary:hover {
            background: rgba(255, 255, 255, 0.14);
            border-color: var(--text-secondary);
            color: var(--accent-gold);
            transform: translateY(-2px);
        }

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

        .hero-panel {
            background: rgba(15, 58, 38, 0.7);
            backdrop-filter: blur(10px);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: var(--spacing-lg);
            box-shadow: var(--shadow-card);
        }

        .hero-panel h3 {
            font-family: var(--font-heading);
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--accent-gold);
            margin-bottom: var(--spacing-md);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .hero-panel h3 i {
            color: var(--accent-lime);
        }

        .hero-panel ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: var(--spacing-sm);
        }

        .hero-panel ul li {
            display: flex;
            align-items: center;
            gap: 10px;
            color: var(--text-secondary);
            font-size: 0.95rem;
            padding: 8px 12px;
            background: rgba(255, 255, 255, 0.04);
            border-radius: 8px;
        }

        .hero-panel ul li i {
            color: var(--accent-lime);
            font-size: 1rem;
            min-width: 20px;
        }

        /* ===== SECTION BASE ===== */
        .section {
            padding: var(--spacing-xl) 0;
        }

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

        .section-header {
            margin-bottom: var(--spacing-lg);
            text-align: left;
            max-width: 760px;
        }

        .section-header h2 {
            font-family: var(--font-heading);
            font-size: clamp(1.6rem, 3vw, 2.3rem);
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: var(--spacing-sm);
            letter-spacing: -0.01em;
        }

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

        /* ===== NEWS / CMS LIST ===== */
        .news-grid {
            display: grid;
            grid-template-columns: 1fr 340px;
            gap: var(--spacing-lg);
            align-items: start;
        }

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

        .news-item {
            display: flex;
            align-items: center;
            gap: var(--spacing-md);
            padding: var(--spacing-md);
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.06);
            border-radius: var(--radius-md);
            transition: all var(--transition-smooth);
        }

        .news-item:hover {
            background: rgba(255, 204, 0, 0.06);
            border-color: var(--border-subtle);
            transform: translateX(4px);
        }

        .news-item .news-index {
            font-family: var(--font-heading);
            font-weight: 900;
            font-size: 1.4rem;
            color: var(--accent-gold);
            min-width: 48px;
            text-align: center;
        }

        .news-item .news-content {
            flex: 1;
        }

        .news-item .news-title {
            font-weight: 700;
            color: var(--text-primary);
            font-size: 1rem;
            margin-bottom: 4px;
            transition: color var(--transition-fast);
        }

        .news-item:hover .news-title {
            color: var(--accent-gold);
        }

        .news-item .news-meta {
            font-size: 0.85rem;
            color: var(--text-muted);
            display: flex;
            gap: var(--spacing-sm);
            flex-wrap: wrap;
        }

        .news-sidebar {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: var(--spacing-lg);
            position: sticky;
            top: 100px;
        }

        .news-sidebar h3 {
            font-family: var(--font-heading);
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--accent-gold);
            margin-bottom: var(--spacing-md);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .news-sidebar h3 i {
            color: var(--accent-lime);
        }

        .news-sidebar .sidebar-tip {
            color: var(--text-secondary);
            font-size: 0.9rem;
            line-height: 1.6;
            padding: 12px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .news-sidebar .sidebar-tip:last-child {
            border-bottom: none;
        }

        .news-empty {
            padding: var(--spacing-lg);
            text-align: center;
            color: var(--text-muted);
            background: rgba(255, 255, 255, 0.04);
            border-radius: var(--radius-md);
            border: 1px dashed var(--border-subtle);
        }

        /* ===== SERVICES / FEATURES ===== */
        .services-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--spacing-md);
        }

        .service-card {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: var(--radius-md);
            padding: var(--spacing-lg);
            transition: all var(--transition-smooth);
            text-align: left;
        }

        .service-card:hover {
            border-color: var(--border-subtle);
            box-shadow: var(--shadow-card);
            transform: translateY(-4px);
            background: rgba(255, 204, 0, 0.05);
        }

        .service-card .card-icon {
            width: 52px;
            height: 52px;
            border-radius: 14px;
            background: rgba(255, 204, 0, 0.12);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            color: var(--accent-gold);
            margin-bottom: var(--spacing-md);
        }

        .service-card h3 {
            font-family: var(--font-heading);
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: var(--spacing-sm);
            color: var(--text-primary);
        }

        .service-card p {
            color: var(--text-secondary);
            font-size: 0.92rem;
            line-height: 1.6;
        }

        /* ===== APP DOWNLOAD ===== */
        .app-section {
            background-image: linear-gradient(rgba(6, 35, 21, 0.9), rgba(6, 35, 21, 0.9)), url('/assets/images/backpic/back-2.jpg');
            background-size: cover;
            background-position: center;
            background-attachment: fixed;
        }

        .app-content {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: var(--spacing-xl);
            align-items: center;
        }

        .app-left h2 {
            font-family: var(--font-heading);
            font-size: clamp(1.8rem, 3vw, 2.5rem);
            font-weight: 800;
            margin-bottom: var(--spacing-md);
        }

        .app-left p {
            color: var(--text-secondary);
            margin-bottom: var(--spacing-lg);
            font-size: 1rem;
            line-height: 1.7;
        }

        .app-buttons {
            display: flex;
            gap: var(--spacing-sm);
            flex-wrap: wrap;
        }

        .app-btn {
            display: flex;
            align-items: center;
            gap: 12px;
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.15);
            padding: 14px 24px;
            border-radius: 14px;
            color: var(--text-primary);
            transition: all var(--transition-smooth);
        }

        .app-btn:hover {
            background: rgba(255, 204, 0, 0.12);
            border-color: var(--accent-gold);
            color: var(--accent-gold);
            transform: translateY(-2px);
        }

        .app-btn i {
            font-size: 1.8rem;
            color: var(--accent-lime);
        }

        .app-btn .app-btn-text {
            display: flex;
            flex-direction: column;
            text-align: left;
        }

        .app-btn .app-btn-text small {
            font-size: 0.75rem;
            color: var(--text-muted);
        }

        .app-btn .app-btn-text strong {
            font-size: 1rem;
            font-weight: 700;
        }

        .app-right img {
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-card);
        }

        /* ===== MILESTONE / TIMELINE ===== */
        .timeline {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--spacing-md);
            position: relative;
        }

        .timeline::before {
            content: '';
            position: absolute;
            top: 32px;
            left: 5%;
            right: 5%;
            height: 2px;
            background: linear-gradient(to right, var(--border-subtle), var(--accent-gold), var(--border-subtle));
            z-index: 0;
        }

        .timeline-item {
            text-align: left;
            position: relative;
            z-index: 1;
            background: rgba(255, 255, 255, 0.04);
            border-radius: var(--radius-md);
            padding: var(--spacing-md);
            border: 1px solid rgba(255, 255, 255, 0.08);
        }

        .timeline-item .timeline-dot {
            width: 20px;
            height: 20px;
            border-radius: 50%;
            background: var(--accent-gold);
            margin-bottom: var(--spacing-sm);
            box-shadow: 0 0 12px rgba(255, 204, 0, 0.5);
        }

        .timeline-item h4 {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1rem;
            color: var(--accent-gold);
            margin-bottom: 4px;
        }

        .timeline-item p {
            font-size: 0.85rem;
            color: var(--text-secondary);
        }

        /* ===== LIVE STREAM ===== */
        .live-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: var(--spacing-lg);
            align-items: center;
        }

        .live-card {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            overflow: hidden;
        }

        .live-card img {
            width: 100%;
            height: 240px;
            object-fit: cover;
        }

        .live-card .live-body {
            padding: var(--spacing-lg);
        }

        .live-card .live-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(255, 0, 0, 0.2);
            color: #FF5555;
            padding: 4px 12px;
            border-radius: 50px;
            font-size: 0.8rem;
            font-weight: 700;
            margin-bottom: var(--spacing-sm);
        }

        .live-card h3 {
            font-family: var(--font-heading);
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: var(--spacing-sm);
        }

        .live-card .countdown {
            display: flex;
            gap: var(--spacing-sm);
            margin: var(--spacing-md) 0;
        }

        .countdown-item {
            background: rgba(255, 204, 0, 0.1);
            border: 1px solid var(--border-subtle);
            border-radius: 10px;
            padding: 12px 18px;
            text-align: center;
            min-width: 70px;
        }

        .countdown-item .count-number {
            font-size: 1.6rem;
            font-weight: 900;
            color: var(--accent-gold);
            font-family: var(--font-heading);
        }

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

        .live-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: var(--spacing-sm);
        }

        .live-list li {
            display: flex;
            align-items: center;
            gap: 10px;
            color: var(--text-secondary);
            padding: 10px 14px;
            background: rgba(255, 255, 255, 0.04);
            border-radius: 8px;
        }

        .live-list li i {
            color: var(--accent-lime);
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 820px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: var(--spacing-sm);
        }

        .faq-item {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition-fast);
        }

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

        .faq-question {
            width: 100%;
            background: transparent;
            color: var(--text-primary);
            padding: 18px 24px;
            font-size: 1rem;
            font-weight: 700;
            display: flex;
            justify-content: space-between;
            align-items: center;
            text-align: left;
            cursor: pointer;
            transition: all var(--transition-fast);
        }

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

        .faq-question i {
            transition: transform var(--transition-smooth);
            color: var(--accent-gold);
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-smooth);
            padding: 0 24px;
        }

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

        .faq-answer p {
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.7;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, rgba(255, 204, 0, 0.08), rgba(50, 205, 50, 0.05));
            border-top: 1px solid var(--border-subtle);
            border-bottom: 1px solid var(--border-subtle);
        }

        .cta-content {
            text-align: center;
            max-width: 720px;
            margin: 0 auto;
        }

        .cta-content h2 {
            font-family: var(--font-heading);
            font-size: clamp(1.8rem, 3vw, 2.5rem);
            font-weight: 800;
            margin-bottom: var(--spacing-md);
        }

        .cta-content p {
            color: var(--text-secondary);
            margin-bottom: var(--spacing-lg);
            font-size: 1.05rem;
        }

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

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

        .footer-brand p {
            color: var(--text-muted);
            font-size: 0.9rem;
            margin-top: var(--spacing-sm);
            line-height: 1.6;
        }

        .footer-col h4 {
            font-family: var(--font-heading);
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--accent-gold);
            margin-bottom: var(--spacing-sm);
        }

        .footer-col ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

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

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

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

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

        .footer-bottom .badge-18 {
            background: rgba(255, 0, 0, 0.2);
            color: #FF5555;
            padding: 4px 12px;
            border-radius: 50px;
            font-weight: 800;
            font-size: 0.8rem;
            border: 1px solid rgba(255, 0, 0, 0.3);
        }

        /* ===== FAB ===== */
        .fab-left {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: 900;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: rgba(6, 35, 21, 0.9);
            border: 2px solid var(--accent-gold);
            color: var(--accent-gold);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            box-shadow: 0 4px 20px rgba(255, 204, 0, 0.3);
            opacity: 0.7;
            animation: fab-float 3s ease-in-out infinite;
            transition: all var(--transition-smooth);
        }

        .fab-left:hover {
            opacity: 1;
            transform: scale(1.1);
            box-shadow: 0 8px 32px rgba(255, 204, 0, 0.5);
        }

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

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

        .fab-left .notification-dot {
            position: absolute;
            top: 4px;
            right: 4px;
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background: #FF0000;
            border: 2px solid var(--bg-primary);
            animation: blink-dot 1.5s ease-in-out infinite;
        }

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

        /* ===== RESPONSIVE ===== */
        @media (max-width: 1024px) {
            .hero-content {
                grid-template-columns: 1fr;
                gap: var(--spacing-lg);
            }
            .news-grid {
                grid-template-columns: 1fr;
            }
            .news-sidebar {
                position: static;
            }
            .services-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .timeline {
                grid-template-columns: repeat(2, 1fr);
            }
            .timeline::before {
                display: none;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .app-content {
                grid-template-columns: 1fr;
            }
            .live-grid {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 768px) {
            .nav-menu {
                display: none;
                position: fixed;
                top: 72px;
                left: 0;
                right: 0;
                background: rgba(6, 35, 21, 0.98);
                backdrop-filter: blur(16px);
                flex-direction: column;
                padding: var(--spacing-md);
                gap: var(--spacing-sm);
                border-bottom: 1px solid var(--border-subtle);
                z-index: 999;
            }
            .nav-menu.open {
                display: flex;
            }
            .nav-menu li a {
                display: block;
                width: 100%;
                padding: 14px 18px;
                font-size: 1rem;
            }
            .mobile-toggle {
                display: block;
            }
            .nav-actions {
                gap: 8px;
            }
            .btn-outline, .btn-solid {
                padding: 8px 16px;
                font-size: 0.8rem;
            }
            .logo {
                font-size: 1rem;
                max-width: 140px;
                overflow: hidden;
                text-overflow: ellipsis;
            }
            .hero {
                padding: 110px 0 60px;
                min-height: auto;
            }
            .hero h1 {
                font-size: 1.8rem;
            }
            .services-grid {
                grid-template-columns: 1fr;
            }
            .timeline {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .section {
                padding: var(--spacing-lg) 0;
            }
            .hero-stats {
                gap: var(--spacing-md);
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 var(--spacing-sm);
            }
            .hero h1 {
                font-size: 1.5rem;
            }
            .hero-cta-group {
                flex-direction: column;
                width: 100%;
            }
            .hero-cta-group .btn {
                width: 100%;
                text-align: center;
            }
            .btn-large, .btn-secondary {
                padding: 14px 20px;
                font-size: 0.95rem;
            }
            .hero-stat .stat-number {
                font-size: 1.3rem;
            }
            .app-buttons {
                flex-direction: column;
            }
            .app-btn {
                width: 100%;
                justify-content: flex-start;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .fab-left {
                width: 48px;
                height: 48px;
                font-size: 1.3rem;
                left: 12px;
                bottom: 80px;
            }
        }

/* roulang page: article */
:root {
            --bg-primary: #0B0B0B;
            --bg-secondary: #161616;
            --bg-tertiary: #1E1E1E;
            --accent-primary: #FF4500;
            --accent-secondary: #FF0000;
            --accent-glow: rgba(255, 69, 0, 0.35);
            --text-primary: #FFFFFF;
            --text-secondary: #CCCCCC;
            --text-muted: #8A8A8A;
            --border-color: #2A2A2A;
            --border-hover: #3D3D3D;
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
            --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.4);
            --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.5);
            --shadow-accent: 0 8px 32px rgba(255, 69, 0, 0.25);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-primary: 'Be Vietnam Pro', 'Inter', sans-serif;
            --font-body: 'Inter', 'Be Vietnam Pro', sans-serif;
            --container-max: 1200px;
            --container-padding: 24px;
            --header-height: 76px;
        }

        * {
            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-body);
            background: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.6;
            font-size: 16px;
            overflow-x: hidden;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

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

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

        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            outline: none;
            transition: var(--transition);
        }

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

        /* Header & Navigation */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(11, 11, 11, 0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-color);
            height: var(--header-height);
            display: flex;
            align-items: center;
        }

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

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-family: var(--font-primary);
            font-weight: 900;
            font-size: 1.25rem;
            color: var(--text-primary);
            letter-spacing: -0.5px;
            white-space: nowrap;
        }

        .logo-icon {
            color: var(--accent-primary);
            font-size: 1.5rem;
            filter: drop-shadow(0 0 8px var(--accent-glow));
        }

        .logo-text {
            display: flex;
            flex-direction: column;
            line-height: 1.1;
        }

        .logo-text .sub {
            font-size: 0.6rem;
            font-weight: 500;
            color: var(--accent-primary);
            letter-spacing: 1px;
            text-transform: uppercase;
        }

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

        .nav-menu li {
            position: relative;
        }

        .nav-menu a {
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 10px 16px;
            border-radius: 10px;
            font-weight: 500;
            font-size: 0.9rem;
            color: var(--text-secondary);
            transition: var(--transition);
            white-space: nowrap;
            border: 1px solid transparent;
        }

        .nav-menu a:hover {
            color: var(--text-primary);
            background: rgba(255, 69, 0, 0.08);
            border-color: rgba(255, 69, 0, 0.2);
        }

        .nav-menu a.active {
            color: var(--accent-primary);
            background: rgba(255, 69, 0, 0.12);
            border-color: rgba(255, 69, 0, 0.3);
            font-weight: 600;
        }

        .nav-menu a i {
            font-size: 0.85rem;
            color: inherit;
        }

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

        .btn-login {
            padding: 9px 18px;
            border-radius: 10px;
            font-weight: 600;
            font-size: 0.85rem;
            color: var(--text-secondary);
            background: transparent;
            border: 1px solid var(--border-color);
            transition: var(--transition);
            white-space: nowrap;
        }

        .btn-login:hover {
            color: var(--text-primary);
            border-color: var(--border-hover);
            background: var(--bg-tertiary);
        }

        .btn-signup {
            padding: 9px 20px;
            border-radius: 10px;
            font-weight: 700;
            font-size: 0.85rem;
            color: #fff;
            background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
            box-shadow: 0 4px 16px rgba(255, 69, 0, 0.35);
            transition: var(--transition);
            white-space: nowrap;
            position: relative;
            overflow: hidden;
        }

        .btn-signup::after {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: linear-gradient(45deg, transparent 40%, rgba(255, 255, 255, 0.15) 50%, transparent 60%);
            animation: shimmer 3s infinite;
        }

        @keyframes shimmer {
            0% { transform: translateX(-100%); }
            100% { transform: translateX(100%); }
        }

        .btn-signup:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(255, 69, 0, 0.5);
        }

        .btn-signup:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(255, 69, 0, 0.3);
        }

        .mobile-toggle {
            display: none;
            background: transparent;
            border: none;
            color: var(--text-primary);
            font-size: 1.5rem;
            padding: 6px;
            cursor: pointer;
        }

        /* Article Layout */
        .article-page {
            margin-top: var(--header-height);
            flex: 1;
            padding: 40px 0 60px;
        }

        .article-container {
            display: grid;
            grid-template-columns: minmax(0, 1fr) 320px;
            gap: 40px;
            align-items: start;
        }

        .article-main {
            min-width: 0;
            max-width: 720px;
        }

        .article-sidebar {
            position: sticky;
            top: calc(var(--header-height) + 24px);
            display: flex;
            flex-direction: column;
            gap: 24px;
        }

        /* Article Content */
        .article-header {
            margin-bottom: 32px;
        }

        .article-meta {
            display: flex;
            align-items: center;
            gap: 14px;
            flex-wrap: wrap;
            margin-bottom: 16px;
        }

        .article-category {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 14px;
            border-radius: 20px;
            font-size: 0.75rem;
            font-weight: 600;
            letter-spacing: 0.5px;
            text-transform: uppercase;
            color: var(--accent-primary);
            background: rgba(255, 69, 0, 0.1);
            border: 1px solid rgba(255, 69, 0, 0.25);
        }

        .article-date {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        .article-title {
            font-family: var(--font-primary);
            font-size: 2.2rem;
            font-weight: 900;
            line-height: 1.25;
            letter-spacing: -0.5px;
            margin-bottom: 16px;
            color: var(--text-primary);
        }

        .article-summary {
            font-size: 1.1rem;
            line-height: 1.7;
            color: var(--text-secondary);
            border-left: 4px solid var(--accent-primary);
            padding-left: 20px;
            margin-bottom: 24px;
        }

        .article-body {
            font-size: 1rem;
            line-height: 1.7;
            color: var(--text-secondary);
        }

        .article-body h2 {
            font-family: var(--font-primary);
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--text-primary);
            margin: 32px 0 16px;
            letter-spacing: -0.3px;
            line-height: 1.3;
        }

        .article-body h3 {
            font-family: var(--font-primary);
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--text-primary);
            margin: 24px 0 12px;
            line-height: 1.4;
        }

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

        .article-body ul,
        .article-body ol {
            margin: 0 0 20px 24px;
            padding: 0;
        }

        .article-body li {
            margin-bottom: 10px;
            position: relative;
        }

        .article-body ul li::marker {
            color: var(--accent-primary);
        }

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

        .article-body img {
            border-radius: var(--radius-md);
            margin: 24px 0;
            box-shadow: var(--shadow-md);
        }

        .article-body blockquote {
            border-left: 4px solid var(--accent-primary);
            background: var(--bg-tertiary);
            padding: 16px 20px;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            margin: 24px 0;
            font-style: italic;
            color: var(--text-secondary);
        }

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

        .article-body a {
            color: var(--accent-primary);
            font-weight: 600;
            border-bottom: 1px solid rgba(255, 69, 0, 0.3);
        }

        .article-body a:hover {
            border-bottom-color: var(--accent-primary);
        }

        /* Article Not Found */
        .article-not-found {
            text-align: center;
            padding: 60px 20px;
            background: var(--bg-secondary);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-color);
        }

        .article-not-found i {
            font-size: 3rem;
            color: var(--text-muted);
            margin-bottom: 20px;
        }

        .article-not-found h2 {
            font-family: var(--font-primary);
            font-size: 1.5rem;
            font-weight: 800;
            margin-bottom: 12px;
        }

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

        .btn-back {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 24px;
            border-radius: 12px;
            font-weight: 700;
            font-size: 0.95rem;
            color: #fff;
            background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
            box-shadow: var(--shadow-accent);
            transition: var(--transition);
        }

        .btn-back:hover {
            transform: translateY(-2px);
            box-shadow: 0 12px 36px rgba(255, 69, 0, 0.4);
        }

        /* Sidebar */
        .sidebar-card {
            background: var(--bg-secondary);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 20px;
            transition: var(--transition);
        }

        .sidebar-card:hover {
            border-color: var(--border-hover);
        }

        .sidebar-card-title {
            font-family: var(--font-primary);
            font-size: 0.95rem;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 8px;
            letter-spacing: -0.2px;
        }

        .sidebar-card-title i {
            color: var(--accent-primary);
            font-size: 0.9rem;
        }

        .sidebar-list {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .sidebar-list li a {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 0.85rem;
            color: var(--text-secondary);
            padding: 10px 12px;
            border-radius: 8px;
            background: var(--bg-tertiary);
            border: 1px solid transparent;
            transition: var(--transition);
            line-height: 1.4;
        }

        .sidebar-list li a:hover {
            color: var(--text-primary);
            border-color: rgba(255, 69, 0, 0.25);
            background: rgba(255, 69, 0, 0.06);
        }

        .sidebar-list li a i {
            color: var(--accent-primary);
            font-size: 0.7rem;
            flex-shrink: 0;
        }

        .sidebar-tip {
            background: linear-gradient(135deg, rgba(255, 69, 0, 0.15), rgba(255, 0, 0, 0.08));
            border: 1px solid rgba(255, 69, 0, 0.3);
            border-radius: var(--radius-md);
            padding: 20px;
        }

        .sidebar-tip .tip-label {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.8rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 1px;
            color: var(--accent-primary);
            margin-bottom: 10px;
        }

        .sidebar-tip p {
            font-size: 0.85rem;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        /* CTA Section */
        .cta-section {
            margin-top: 48px;
            padding: 36px 32px;
            background: linear-gradient(135deg, rgba(255, 69, 0, 0.12), rgba(255, 0, 0, 0.06));
            border: 1px solid rgba(255, 69, 0, 0.25);
            border-radius: var(--radius-lg);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
        }

        .cta-section .cta-content {
            flex: 1;
            min-width: 260px;
        }

        .cta-section h3 {
            font-family: var(--font-primary);
            font-size: 1.4rem;
            font-weight: 800;
            margin-bottom: 8px;
            letter-spacing: -0.3px;
        }

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

        .btn-cta {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 28px;
            border-radius: 14px;
            font-weight: 800;
            font-size: 0.95rem;
            color: #fff;
            background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
            box-shadow: var(--shadow-accent);
            transition: var(--transition);
            white-space: nowrap;
        }

        .btn-cta:hover {
            transform: translateY(-3px);
            box-shadow: 0 16px 40px rgba(255, 69, 0, 0.45);
        }

        /* Footer */
        .site-footer {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-color);
            padding: 48px 0 24px;
            margin-top: 40px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 32px;
        }

        .footer-brand .logo {
            margin-bottom: 16px;
        }

        .footer-brand p {
            color: var(--text-muted);
            font-size: 0.85rem;
            line-height: 1.6;
            max-width: 360px;
        }

        .footer-col h4 {
            font-family: var(--font-primary);
            font-size: 0.9rem;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 16px;
            letter-spacing: 0.3px;
        }

        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-col ul li a {
            color: var(--text-muted);
            font-size: 0.85rem;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

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

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding-top: 24px;
            border-top: 1px solid var(--border-color);
            flex-wrap: wrap;
        }

        .footer-bottom p {
            color: var(--text-muted);
            font-size: 0.8rem;
        }

        .badge-18 {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
            color: #fff;
            font-weight: 900;
            font-size: 0.8rem;
            box-shadow: 0 4px 12px rgba(255, 69, 0, 0.4);
            flex-shrink: 0;
        }

        /* FAB */
        .fab-left {
            position: fixed;
            left: 20px;
            bottom: 96px;
            z-index: 999;
            display: flex;
            align-items: center;
            justify-content: center;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: rgba(0, 0, 0, 0.7);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 2px solid transparent;
            background-clip: padding-box;
            position: relative;
            box-shadow: 0 0 20px rgba(255, 69, 0, 0.4);
            cursor: pointer;
            transition: var(--transition);
            opacity: 0.7;
            animation: fab-breathe 3s ease-in-out infinite;
        }

        .fab-left::before {
            content: '';
            position: absolute;
            inset: -2px;
            border-radius: 50%;
            padding: 2px;
            background: linear-gradient(135deg, var(--accent-primary), #FF6B35, var(--accent-secondary));
            -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
            -webkit-mask-composite: xor;
            mask-composite: exclude;
            pointer-events: none;
        }

        .fab-left:hover {
            opacity: 1;
            transform: scale(1.1);
            box-shadow: 0 0 30px rgba(255, 69, 0, 0.6);
        }

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

        .fab-left i {
            font-size: 1.5rem;
            color: var(--accent-primary);
            filter: drop-shadow(0 0 8px rgba(255, 69, 0, 0.6));
            animation: fab-icon-flicker 2.5s ease-in-out infinite;
        }

        .fab-left .fab-dot {
            position: absolute;
            top: 4px;
            right: 4px;
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background: #FF0000;
            border: 2px solid var(--bg-primary);
            animation: fab-dot-blink 1.5s ease-in-out infinite;
        }

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

        @keyframes fab-icon-flicker {
            0%, 100% { opacity: 1; }
            45% { opacity: 0.75; }
            50% { opacity: 0.9; }
            55% { opacity: 0.75; }
        }

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

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

            .article-sidebar {
                position: static;
                display: grid;
                grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
                gap: 20px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --header-height: 64px;
                --container-padding: 16px;
            }

            .article-page {
                padding: 28px 0 40px;
            }

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

            .article-summary {
                font-size: 1rem;
                padding-left: 14px;
            }

            .nav-menu {
                position: fixed;
                top: var(--header-height);
                left: 0;
                right: 0;
                background: var(--bg-primary);
                flex-direction: column;
                align-items: stretch;
                padding: 16px;
                gap: 4px;
                border-bottom: 1px solid var(--border-color);
                transform: translateY(-120%);
                transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
                z-index: 999;
                box-shadow: var(--shadow-lg);
            }

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

            .nav-menu a {
                padding: 14px 16px;
                font-size: 0.95rem;
                border-radius: 10px;
            }

            .mobile-toggle {
                display: block;
            }

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

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }

            .footer-brand {
                grid-column: 1 / -1;
            }

            .cta-section {
                flex-direction: column;
                align-items: flex-start;
                padding: 24px 20px;
            }

            .btn-cta {
                width: 100%;
                justify-content: center;
            }

            .fab-left {
                width: 48px;
                height: 48px;
                left: 14px;
                bottom: 80px;
            }

            .fab-left i {
                font-size: 1.2rem;
            }
        }

        @media (max-width: 520px) {
            .article-title {
                font-size: 1.4rem;
            }

            .article-body h2 {
                font-size: 1.25rem;
            }

            .article-body h3 {
                font-size: 1.05rem;
            }

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

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

            .nav-actions .btn-login {
                display: none;
            }

            .logo {
                font-size: 1rem;
            }

            .logo-icon {
                font-size: 1.2rem;
            }
        }

/* roulang page: category1 */
:root {
            --primary-bg: #1A1A1A;
            --secondary-bg: #121212;
            --accent-silver: #E5E8E8;
            --accent-gold: #F0E68C;
            --text-white: #FFFFFF;
            --text-platinum: #D5D8DC;
            --text-muted: #A6ACAF;
            --border-color: #333333;
            --radius-sm: 4px;
            --radius-md: 8px;
            --radius-lg: 12px;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.3);
            --shadow-md: 0 4px 16px rgba(0,0,0,0.4);
            --shadow-lg: 0 8px 32px rgba(0,0,0,0.5);
            --transition-fast: 0.2s ease;
            --transition-base: 0.3s ease;
            --font-primary: 'Segoe UI', -apple-system, BlinkMacSystemFont, Roboto, sans-serif;
            --spacing-xs: 8px;
            --spacing-sm: 16px;
            --spacing-md: 32px;
            --spacing-lg: 56px;
            --spacing-xl: 80px;
        }

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

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

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

        a:hover, a:focus {
            color: var(--accent-silver);
            outline: none;
        }

        a:focus-visible {
            outline: 2px solid var(--accent-gold);
            outline-offset: 2px;
        }

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

        button, .btn {
            font-family: var(--font-primary);
            cursor: pointer;
            transition: all var(--transition-base);
        }

        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 var(--spacing-sm);
        }

        /* Header & Navigation */
        .site-header {
            background: var(--secondary-bg);
            border-bottom: 1px solid var(--border-color);
            padding: var(--spacing-xs) 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: var(--shadow-sm);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: var(--spacing-xs);
        }

        .logo {
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--accent-gold);
            display: flex;
            align-items: center;
            gap: 8px;
            white-space: nowrap;
        }

        .logo-icon {
            font-size: 1.6rem;
            color: var(--accent-gold);
        }

        .logo:hover, .logo:focus {
            color: var(--accent-gold);
            opacity: 0.85;
        }

        .nav-menu {
            list-style: none;
            display: flex;
            align-items: center;
            gap: var(--spacing-sm);
            margin: 0;
            padding: 0;
            flex-wrap: wrap;
        }

        .nav-menu a {
            color: var(--text-platinum);
            font-weight: 500;
            font-size: 0.95rem;
            padding: 8px 12px;
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            gap: 6px;
            transition: all var(--transition-base);
            white-space: nowrap;
        }

        .nav-menu a:hover, .nav-menu a:focus {
            background: rgba(240, 230, 140, 0.1);
            color: var(--accent-gold);
        }

        .nav-menu a.active {
            background: rgba(240, 230, 140, 0.15);
            color: var(--accent-gold);
            border-bottom: 2px solid var(--accent-gold);
            border-radius: var(--radius-sm) var(--radius-sm) 0 0;
        }

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

        .btn-login {
            background: transparent;
            border: 1px solid var(--border-color);
            color: var(--text-platinum);
            padding: 8px 16px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.9rem;
            white-space: nowrap;
        }

        .btn-login:hover, .btn-login:focus {
            border-color: var(--accent-gold);
            color: var(--accent-gold);
            background: rgba(240, 230, 140, 0.05);
        }

        .btn-signup {
            background: var(--accent-gold);
            color: #000;
            border: none;
            padding: 8px 20px;
            border-radius: var(--radius-sm);
            font-weight: 700;
            font-size: 0.9rem;
            white-space: nowrap;
        }

        .btn-signup:hover, .btn-signup:focus {
            background: var(--accent-silver);
            color: #000;
            transform: translateY(-1px);
            box-shadow: var(--shadow-md);
        }

        /* Hero Section */
        .hero-section {
            background: linear-gradient(135deg, var(--secondary-bg) 0%, #1C1C1E 50%, #2A2A2D 100%);
            padding: var(--spacing-xl) 0 var(--spacing-lg);
            position: relative;
            overflow: hidden;
            border-bottom: 1px solid var(--border-color);
        }

        .hero-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: url('/assets/images/backpic/back-1.jpg') center/cover no-repeat;
            opacity: 0.15;
            z-index: 0;
        }

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

        .hero-text h1 {
            font-size: 2.5rem;
            font-weight: 800;
            line-height: 1.2;
            color: var(--accent-gold);
            margin-bottom: var(--spacing-sm);
        }

        .hero-text .hero-subtitle {
            font-size: 1.15rem;
            color: var(--text-platinum);
            margin-bottom: var(--spacing-md);
            line-height: 1.6;
        }

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

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

        .stat-value {
            font-size: 2rem;
            font-weight: 800;
            color: var(--accent-gold);
            display: block;
        }

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

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

        .btn-primary-gold {
            background: var(--accent-gold);
            color: #000;
            border: none;
            padding: 12px 28px;
            border-radius: var(--radius-md);
            font-weight: 700;
            font-size: 1rem;
            transition: all var(--transition-base);
        }

        .btn-primary-gold:hover, .btn-primary-gold:focus {
            background: var(--accent-silver);
            color: #000;
            transform: translateY(-2px);
            box-shadow: var(--shadow-lg);
        }

        .btn-outline-light {
            background: transparent;
            border: 1px solid var(--border-color);
            color: var(--text-white);
            padding: 12px 28px;
            border-radius: var(--radius-md);
            font-weight: 600;
            font-size: 1rem;
            transition: all var(--transition-base);
        }

        .btn-outline-light:hover, .btn-outline-light:focus {
            border-color: var(--accent-gold);
            color: var(--accent-gold);
            background: rgba(240, 230, 140, 0.05);
        }

        .hero-visual {
            display: flex;
            flex-direction: column;
            gap: var(--spacing-sm);
        }

        .hero-visual img {
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-lg);
            border: 1px solid var(--border-color);
        }

        .hero-badge-list {
            display: flex;
            gap: var(--spacing-xs);
            flex-wrap: wrap;
            margin-top: var(--spacing-xs);
        }

        .badge-tag {
            background: rgba(240, 230, 140, 0.1);
            color: var(--accent-gold);
            border: 1px solid rgba(240, 230, 140, 0.3);
            padding: 6px 14px;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 600;
        }

        /* Section General */
        .section-block {
            padding: var(--spacing-lg) 0;
        }

        .section-title {
            font-size: 1.9rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: var(--spacing-sm);
            text-align: left;
        }

        .section-subtitle {
            font-size: 1.05rem;
            color: var(--text-muted);
            margin-bottom: var(--spacing-md);
            max-width: 800px;
            line-height: 1.6;
            text-align: left;
        }

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

        .feature-card {
            background: var(--secondary-bg);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: var(--spacing-md);
            transition: all var(--transition-base);
        }

        .feature-card:hover {
            border-color: var(--accent-gold);
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }

        .feature-icon {
            font-size: 2rem;
            color: var(--accent-gold);
            margin-bottom: var(--spacing-xs);
        }

        .feature-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: var(--spacing-xs);
        }

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

        /* Link Showcase */
        .link-showcase {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: var(--spacing-md);
            margin-top: var(--spacing-md);
        }

        .link-card {
            background: var(--secondary-bg);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition-base);
            display: flex;
            flex-direction: column;
        }

        .link-card:hover {
            border-color: var(--accent-gold);
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }

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

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

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

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

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

        .link-card-body p {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: var(--spacing-xs);
            flex: 1;
        }

        .link-card-footer {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-top: auto;
        }

        .link-status {
            color: #32CD32;
            font-size: 0.85rem;
            font-weight: 600;
            display: flex;
            align-items: center;
            gap: 4px;
        }

        .link-status i {
            font-size: 0.7rem;
        }

        /* Process Steps */
        .steps-list {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: var(--spacing-md);
            margin-top: var(--spacing-md);
            counter-reset: step;
        }

        .step-item {
            background: var(--secondary-bg);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: var(--spacing-md);
            position: relative;
            transition: all var(--transition-base);
        }

        .step-item:hover {
            border-color: var(--accent-gold);
            box-shadow: var(--shadow-sm);
        }

        .step-number {
            font-size: 2rem;
            font-weight: 800;
            color: var(--accent-gold);
            display: block;
            margin-bottom: var(--spacing-xs);
        }

        .step-item h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 6px;
        }

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

        /* FAQ */
        .faq-list {
            margin-top: var(--spacing-md);
            max-width: 800px;
        }

        .faq-item {
            background: var(--secondary-bg);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            margin-bottom: var(--spacing-sm);
            padding: var(--spacing-sm) var(--spacing-md);
            transition: all var(--transition-base);
        }

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

        .faq-item h3 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 6px;
            cursor: pointer;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .faq-item h3 i {
            color: var(--accent-gold);
            font-size: 0.9rem;
            transition: transform var(--transition-fast);
        }

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

        /* CTA Section */
        .cta-section {
            background: linear-gradient(135deg, var(--secondary-bg), #2A2A2D);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: var(--spacing-lg);
            margin: var(--spacing-lg) 0;
            text-align: left;
            display: flex;
            flex-direction: column;
            gap: var(--spacing-sm);
        }

        .cta-section h2 {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--accent-gold);
            margin: 0;
        }

        .cta-section p {
            font-size: 1.05rem;
            color: var(--text-platinum);
            margin: 0;
        }

        .cta-buttons {
            display: flex;
            gap: var(--spacing-sm);
            flex-wrap: wrap;
            margin-top: var(--spacing-xs);
        }

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

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

        .footer-brand .logo {
            font-size: 1.3rem;
            margin-bottom: var(--spacing-xs);
        }

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

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

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

        .footer-col ul li {
            margin-bottom: 6px;
        }

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

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

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

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

        .badge-18 {
            background: #D32F2F;
            color: #fff;
            padding: 4px 10px;
            border-radius: var(--radius-sm);
            font-weight: 800;
            font-size: 0.85rem;
        }

        /* FAB */
        .fab-container {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: 1050;
        }

        .fab-btn {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: var(--secondary-bg);
            border: 2px solid var(--accent-gold);
            color: var(--accent-gold);
            font-size: 1.5rem;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 20px rgba(240, 230, 140, 0.3);
            transition: all var(--transition-base);
            position: relative;
        }

        .fab-btn:hover, .fab-btn:focus {
            transform: scale(1.1);
            box-shadow: 0 4px 30px rgba(240, 230, 140, 0.5);
        }

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

        .fab-notification {
            position: absolute;
            top: -4px;
            right: -4px;
            width: 14px;
            height: 14px;
            background: #D32F2F;
            border-radius: 50%;
            border: 2px solid var(--secondary-bg);
            animation: pulse-dot 1.5s infinite;
        }

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

        /* Responsive */
        @media (max-width: 1024px) {
            .hero-content {
                grid-template-columns: 1fr;
                gap: var(--spacing-md);
            }
            .hero-text h1 {
                font-size: 2rem;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            .header-inner {
                flex-direction: column;
                align-items: flex-start;
            }
            .nav-menu {
                width: 100%;
                flex-wrap: wrap;
                gap: 4px;
            }
            .nav-menu a {
                font-size: 0.85rem;
                padding: 6px 10px;
            }
            .nav-actions {
                width: 100%;
                justify-content: flex-start;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .hero-text h1 {
                font-size: 1.7rem;
            }
            .stat-value {
                font-size: 1.5rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: var(--spacing-sm);
            }
            .cta-section {
                padding: var(--spacing-md);
            }
            .cta-section h2 {
                font-size: 1.4rem;
            }
        }

        @media (max-width: 520px) {
            .hero-stats {
                gap: var(--spacing-sm);
            }
            .stat-value {
                font-size: 1.2rem;
            }
            .btn-primary-gold, .btn-outline-light {
                padding: 10px 20px;
                font-size: 0.9rem;
                width: 100%;
                text-align: center;
            }
            .hero-buttons {
                flex-direction: column;
            }
            .nav-menu a {
                font-size: 0.8rem;
                padding: 5px 8px;
            }
            .fab-container {
                left: 10px;
                bottom: 80px;
            }
            .fab-btn {
                width: 48px;
                height: 48px;
                font-size: 1.2rem;
            }
        }

/* roulang page: category2 */
:root {
            --primary-bg: #0F0C20;
            --secondary-bg: #0B1A30;
            --surface-bg: #15122A;
            --surface-hover: #1D1838;
            --accent-lime: #CCFF00;
            --accent-cyan: #00F0FF;
            --text-white: #FFFFFF;
            --text-silver: #A6ACAF;
            --text-muted: #7C8494;
            --border-neon: #2A2A5A;
            --border-cyan: rgba(0, 240, 255, 0.4);
            --border-lime: rgba(204, 255, 0, 0.4);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-neon: 0 0 15px rgba(0, 240, 255, 0.25);
            --shadow-lime: 0 0 18px rgba(204, 255, 0, 0.2);
            --shadow-card: 0 8px 28px rgba(0, 0, 0, 0.45);
            --transition-base: all 0.25s ease;
            --font-body: 'Segoe UI', 'Inter', system-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-body);
            background: var(--primary-bg);
            color: var(--text-white);
            line-height: 1.6;
            overflow-x: hidden;
            min-height: 100vh;
            background-image: radial-gradient(circle at 15% 15%, rgba(0, 240, 255, 0.05) 0%, transparent 35%),
                              radial-gradient(circle at 85% 65%, rgba(204, 255, 0, 0.04) 0%, transparent 40%);
            background-attachment: fixed;
        }

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

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

        .container-custom {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 20px;
            padding-right: 20px;
        }

        /* Header & Navigation */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1050;
            background: rgba(15, 12, 32, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-neon);
            padding: 12px 0;
        }

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

        .logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 1.25rem;
            font-weight: 800;
            color: var(--text-white);
            letter-spacing: -0.02em;
            white-space: nowrap;
        }

        .logo-icon {
            color: var(--accent-lime);
            font-size: 1.4rem;
            filter: drop-shadow(0 0 6px rgba(204, 255, 0, 0.5));
        }

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

        .nav-menu {
            display: flex;
            align-items: center;
            gap: 4px;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .nav-menu li a {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 14px;
            border-radius: 30px;
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--text-silver);
            transition: var(--transition-base);
            white-space: nowrap;
        }

        .nav-menu li a i {
            font-size: 0.85rem;
            opacity: 0.8;
        }

        .nav-menu li a:hover,
        .nav-menu li a:focus {
            color: var(--text-white);
            background: rgba(0, 240, 255, 0.08);
            box-shadow: 0 0 0 1px rgba(0, 240, 255, 0.2);
        }

        .nav-menu li a.active {
            color: var(--accent-lime);
            background: rgba(204, 255, 0, 0.1);
            box-shadow: 0 0 0 1px rgba(204, 255, 0, 0.25);
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .btn-login {
            padding: 8px 16px;
            border-radius: 30px;
            font-size: 0.85rem;
            font-weight: 700;
            color: var(--text-white);
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.3);
            transition: var(--transition-base);
            white-space: nowrap;
        }

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

        .btn-signup {
            padding: 8px 18px;
            border-radius: 30px;
            font-size: 0.85rem;
            font-weight: 800;
            color: var(--primary-bg);
            background: var(--accent-lime);
            border: none;
            box-shadow: 0 0 14px rgba(204, 255, 0, 0.3);
            transition: var(--transition-base);
            white-space: nowrap;
        }

        .btn-signup:hover,
        .btn-signup:focus {
            background: var(--accent-cyan);
            box-shadow: 0 0 18px rgba(0, 240, 255, 0.4);
            transform: translateY(-1px);
            color: var(--primary-bg);
        }

        .nav-toggle {
            display: none;
            background: transparent;
            border: 1px solid var(--border-neon);
            border-radius: 8px;
            width: 44px;
            height: 44px;
            color: var(--text-white);
            font-size: 1.2rem;
            cursor: pointer;
            align-items: center;
            justify-content: center;
            transition: var(--transition-base);
        }

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

        /* Hero Section */
        .page-hero {
            padding: 140px 0 70px;
            background-image: linear-gradient(160deg, rgba(15, 12, 32, 0.95) 40%, rgba(11, 26, 48, 0.85)), url('/assets/images/backpic/back-2.jpg');
            background-size: cover;
            background-position: center;
            position: relative;
        }

        .page-hero::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 80px;
            background: linear-gradient(to bottom, transparent, var(--primary-bg));
        }

        .hero-badge {
            display: inline-block;
            padding: 6px 16px;
            border-radius: 30px;
            background: rgba(0, 240, 255, 0.1);
            border: 1px solid var(--border-cyan);
            color: var(--accent-cyan);
            font-size: 0.75rem;
            font-weight: 700;
            letter-spacing: 0.04em;
            text-transform: uppercase;
            margin-bottom: 20px;
        }

        .page-hero h1 {
            font-size: 2.8rem;
            font-weight: 900;
            line-height: 1.2;
            letter-spacing: -0.02em;
            margin-bottom: 20px;
            color: var(--text-white);
        }

        .page-hero h1 span {
            color: var(--accent-lime);
            text-shadow: 0 0 18px rgba(204, 255, 0, 0.35);
        }

        .hero-desc {
            font-size: 1.1rem;
            color: var(--text-silver);
            max-width: 680px;
            line-height: 1.65;
            margin-bottom: 32px;
        }

        .hero-form-card {
            background: rgba(21, 18, 42, 0.9);
            backdrop-filter: blur(12px);
            border: 1px solid var(--border-neon);
            border-radius: var(--radius-lg);
            padding: 28px;
            box-shadow: var(--shadow-card);
            max-width: 520px;
        }

        .hero-form-card h3 {
            font-size: 1.1rem;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 16px;
        }

        .hero-form-card input {
            width: 100%;
            padding: 12px 16px;
            border-radius: 10px;
            border: 1px solid var(--border-neon);
            background: rgba(0, 0, 0, 0.3);
            color: var(--text-white);
            font-size: 0.95rem;
            margin-bottom: 12px;
            transition: var(--transition-base);
        }

        .hero-form-card input::placeholder {
            color: var(--text-muted);
        }

        .hero-form-card input:focus {
            outline: none;
            border-color: var(--accent-cyan);
            box-shadow: 0 0 0 3px rgba(0, 240, 255, 0.15);
        }

        .btn-submit {
            width: 100%;
            padding: 12px 20px;
            border-radius: 10px;
            font-size: 0.95rem;
            font-weight: 800;
            border: none;
            background: var(--accent-lime);
            color: var(--primary-bg);
            cursor: pointer;
            transition: var(--transition-base);
            text-transform: uppercase;
            letter-spacing: 0.04em;
        }

        .btn-submit:hover {
            background: var(--accent-cyan);
            box-shadow: 0 0 20px rgba(0, 240, 255, 0.4);
            transform: translateY(-2px);
        }

        /* Section Common */
        .section {
            padding: 70px 0;
            position: relative;
        }

        .section-label {
            display: inline-block;
            padding: 5px 14px;
            border-radius: 30px;
            background: rgba(204, 255, 0, 0.08);
            border: 1px solid var(--border-lime);
            color: var(--accent-lime);
            font-size: 0.75rem;
            font-weight: 700;
            letter-spacing: 0.06em;
            text-transform: uppercase;
            margin-bottom: 14px;
        }

        .section-title {
            font-size: 2rem;
            font-weight: 900;
            line-height: 1.25;
            letter-spacing: -0.02em;
            color: var(--text-white);
            margin-bottom: 16px;
        }

        .section-subtitle {
            font-size: 1rem;
            color: var(--text-silver);
            max-width: 720px;
            line-height: 1.65;
            margin-bottom: 36px;
        }

        /* Industrial Metal Style Panels */
        .metal-panel {
            background: linear-gradient(145deg, #1E1B35 0%, #15122A 100%);
            border: 1px solid #2A2A4A;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-card);
            position: relative;
            overflow: hidden;
        }

        .metal-panel::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--accent-cyan), var(--accent-lime), var(--accent-cyan));
            opacity: 0.7;
        }

        .metal-panel .panel-body {
            padding: 28px;
        }

        .metric-bar {
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 16px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }

        .metric-bar:last-child {
            border-bottom: none;
        }

        .metric-icon {
            width: 44px;
            height: 44px;
            border-radius: 10px;
            background: rgba(0, 240, 255, 0.08);
            border: 1px solid rgba(0, 240, 255, 0.2);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-cyan);
            font-size: 1.1rem;
            flex-shrink: 0;
        }

        .metric-info h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 2px;
        }

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

        .metric-value {
            margin-left: auto;
            font-size: 1.5rem;
            font-weight: 900;
            color: var(--accent-lime);
            text-shadow: 0 0 10px rgba(204, 255, 0, 0.3);
            white-space: nowrap;
        }

        /* Steps */
        .step-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 20px;
            counter-reset: step-counter;
        }

        .step-item {
            background: var(--surface-bg);
            border: 1px solid var(--border-neon);
            border-radius: var(--radius-md);
            padding: 24px 20px;
            position: relative;
            transition: var(--transition-base);
            counter-increment: step-counter;
        }

        .step-item::before {
            content: counter(step-counter, decimal-leading-zero);
            position: absolute;
            top: 16px;
            right: 20px;
            font-size: 2rem;
            font-weight: 900;
            color: rgba(0, 240, 255, 0.15);
            letter-spacing: -0.04em;
            line-height: 1;
        }

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

        .step-item h4 {
            font-size: 1.05rem;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 10px;
            padding-right: 40px;
        }

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

        /* Trust List */
        .trust-list {
            list-style: none;
            padding: 0;
            margin: 0;
            display: grid;
            gap: 12px;
        }

        .trust-list li {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            padding: 14px 18px;
            background: rgba(21, 18, 42, 0.6);
            border: 1px solid var(--border-neon);
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            color: var(--text-silver);
            transition: var(--transition-base);
        }

        .trust-list li:hover {
            border-color: var(--border-lime);
            background: rgba(204, 255, 0, 0.05);
        }

        .trust-list li i {
            color: var(--accent-lime);
            margin-top: 4px;
            flex-shrink: 0;
        }

        /* FAQ */
        .faq-list {
            max-width: 820px;
        }

        .faq-item {
            background: var(--surface-bg);
            border: 1px solid var(--border-neon);
            border-radius: var(--radius-md);
            margin-bottom: 14px;
            overflow: hidden;
            transition: var(--transition-base);
        }

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

        .faq-question {
            width: 100%;
            background: transparent;
            border: none;
            padding: 20px 24px;
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-white);
            text-align: left;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            transition: var(--transition-base);
        }

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

        .faq-question .faq-icon {
            flex-shrink: 0;
            color: var(--accent-lime);
            transition: transform 0.3s ease;
        }

        .faq-question[aria-expanded="true"] .faq-icon {
            transform: rotate(180deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding: 0 24px;
        }

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

        .faq-answer p {
            font-size: 0.95rem;
            color: var(--text-silver);
            margin: 0;
            line-height: 1.65;
        }

        /* CTA */
        .cta-section {
            padding: 70px 0 90px;
        }

        .cta-panel {
            background: linear-gradient(135deg, #1E1B35 0%, #0B1A30 100%);
            border: 1px solid var(--border-cyan);
            border-radius: var(--radius-xl);
            padding: 48px 40px;
            position: relative;
            overflow: hidden;
        }

        .cta-panel::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -30%;
            width: 80%;
            height: 200%;
            background: radial-gradient(circle, rgba(0, 240, 255, 0.08) 0%, transparent 60%);
            pointer-events: none;
        }

        .cta-panel h2 {
            font-size: 2rem;
            font-weight: 900;
            color: var(--text-white);
            margin-bottom: 14px;
            position: relative;
        }

        .cta-panel p {
            font-size: 1rem;
            color: var(--text-silver);
            max-width: 620px;
            margin-bottom: 28px;
            position: relative;
        }

        .btn-cta-primary {
            display: inline-block;
            padding: 14px 32px;
            border-radius: 40px;
            font-size: 0.95rem;
            font-weight: 800;
            background: var(--accent-lime);
            color: var(--primary-bg);
            border: none;
            box-shadow: 0 0 20px rgba(204, 255, 0, 0.3);
            transition: var(--transition-base);
            text-transform: uppercase;
            letter-spacing: 0.04em;
            position: relative;
        }

        .btn-cta-primary:hover {
            background: var(--accent-cyan);
            box-shadow: 0 0 24px rgba(0, 240, 255, 0.4);
            transform: translateY(-2px);
            color: var(--primary-bg);
        }

        /* FAB */
        .fab-left {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: 1040;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: rgba(0, 0, 0, 0.7);
            backdrop-filter: blur(10px);
            border: 2px solid transparent;
            background-image: linear-gradient(rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0.7)), 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-lime);
            font-size: 1.3rem;
            cursor: pointer;
            box-shadow: 0 0 15px rgba(0, 240, 255, 0.3);
            transition: var(--transition-base);
            opacity: 0.65;
        }

        .fab-left:hover {
            opacity: 1;
            box-shadow: 0 0 25px rgba(0, 240, 255, 0.6);
            transform: scale(1.1);
            color: var(--accent-cyan);
        }

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

        .fab-notification {
            position: absolute;
            top: -2px;
            right: -2px;
            width: 14px;
            height: 14px;
            border-radius: 50%;
            background: #FF007F;
            border: 2px solid var(--primary-bg);
            animation: blink-notif 1.8s infinite;
        }

        @keyframes blink-notif {
            0%, 100% { opacity: 1; box-shadow: 0 0 8px #FF007F; }
            50% { opacity: 0.4; box-shadow: 0 0 2px #FF007F; }
        }

        /* Footer */
        .site-footer {
            background: #0A0818;
            border-top: 1px solid var(--border-neon);
            padding: 50px 0 24px;
            margin-top: 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 36px;
        }

        .footer-brand .logo {
            font-size: 1.1rem;
            margin-bottom: 12px;
        }

        .footer-brand p {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.6;
            max-width: 320px;
        }

        .footer-col h4 {
            font-size: 0.9rem;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 14px;
            text-transform: uppercase;
            letter-spacing: 0.05em;
        }

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

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

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

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

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            flex-wrap: wrap;
        }

        .footer-bottom p {
            font-size: 0.8rem;
            color: var(--text-muted);
            margin: 0;
        }

        .badge-18 {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            border: 2px solid var(--accent-lime);
            color: var(--accent-lime);
            font-weight: 900;
            font-size: 0.8rem;
            background: rgba(204, 255, 0, 0.05);
            flex-shrink: 0;
        }

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

            .page-hero h1 {
                font-size: 2.2rem;
            }
        }

        @media (max-width: 768px) {
            .nav-menu {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: rgba(15, 12, 32, 0.98);
                backdrop-filter: blur(16px);
                flex-direction: column;
                align-items: stretch;
                padding: 16px 20px;
                gap: 4px;
                border-bottom: 1px solid var(--border-neon);
            }

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

            .nav-menu li a {
                padding: 12px 16px;
                border-radius: 8px;
                font-size: 0.95rem;
            }

            .nav-toggle {
                display: flex;
            }

            .header-actions {
                gap: 6px;
            }

            .btn-login, .btn-signup {
                padding: 6px 12px;
                font-size: 0.75rem;
            }

            .page-hero {
                padding: 120px 0 50px;
            }

            .page-hero h1 {
                font-size: 1.8rem;
            }

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

            .section {
                padding: 48px 0;
            }

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

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

            .cta-panel {
                padding: 32px 24px;
            }

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

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

            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 10px;
            }

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

        @media (max-width: 520px) {
            .container-custom {
                padding-left: 14px;
                padding-right: 14px;
            }

            .logo {
                font-size: 1rem;
                gap: 6px;
            }

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

            .btn-login, .btn-signup {
                padding: 6px 10px;
                font-size: 0.7rem;
            }

            .page-hero h1 {
                font-size: 1.5rem;
            }

            .hero-form-card {
                padding: 20px;
            }

            .section-title {
                font-size: 1.3rem;
            }

            .metric-value {
                font-size: 1.2rem;
            }
        }