/* roulang page: index */
:root {
            --bg-primary: #0A2E1C;
            --bg-secondary: #123E25;
            --bg-card: #0F3523;
            --bg-card-hover: #164A30;
            --bg-overlay: rgba(10, 46, 28, 0.72);
            --accent-gold: #FFD700;
            --accent-gold-soft: #FFE44D;
            --accent-red: #D32F2F;
            --accent-red-soft: #FF6B6B;
            --text-white: #FFFFFF;
            --text-mint: #D1F2EB;
            --text-muted: #9EC5B8;
            --border-gold: rgba(255, 215, 0, 0.45);
            --border-gold-strong: rgba(255, 215, 0, 0.8);
            --shadow-gold: rgba(255, 215, 0, 0.18);
            --shadow-gold-hover: rgba(255, 215, 0, 0.35);
            --shadow-dark: rgba(0, 0, 0, 0.5);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 22px;
            --radius-xl: 32px;
            --space-xs: 4px;
            --space-sm: 8px;
            --space-md: 16px;
            --space-lg: 32px;
            --space-xl: 56px;
            --space-xxl: 80px;
            --transition-fast: 0.2s ease;
            --transition-base: 0.3s ease;
            --transition-slow: 0.5s ease;
            --font-family: 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
            --nav-height: 72px;
            --container-max: 1200px;
        }

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

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

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

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

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

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

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

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

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

        /* ===== HEADER / NAV ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: rgba(10, 46, 28, 0.95);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-gold);
            box-shadow: 0 2px 20px rgba(0, 0, 0, 0.4);
            height: var(--nav-height);
            display: flex;
            align-items: center;
        }

        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: var(--space-md);
            flex-wrap: nowrap;
        }

        .nav-logo {
            display: flex;
            flex-direction: column;
            line-height: 1.2;
            min-width: 0;
            flex-shrink: 1;
        }
        .nav-logo a {
            display: block;
            font-weight: 800;
            font-size: 1.15rem;
            letter-spacing: 0.02em;
            color: var(--accent-gold);
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        .nav-logo .logo-sub {
            font-size: 0.62rem;
            color: var(--text-mint);
            letter-spacing: 0.04em;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .nav-menu-wrapper {
            display: flex;
            align-items: center;
            gap: var(--space-sm);
            flex-shrink: 0;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: var(--space-sm);
            list-style: none;
        }
        .nav-links li a {
            display: block;
            padding: 8px 14px;
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--text-mint);
            letter-spacing: 0.02em;
            transition: all var(--transition-base);
            white-space: nowrap;
        }
        .nav-links li a:hover,
        .nav-links li a.active {
            color: var(--bg-primary);
            background: var(--accent-gold);
            box-shadow: 0 4px 14px var(--shadow-gold);
        }

        .nav-auth {
            display: flex;
            align-items: center;
            gap: var(--space-sm);
            flex-shrink: 0;
        }
        .btn-nav-login {
            background: transparent;
            color: var(--text-mint);
            font-weight: 700;
            font-size: 0.85rem;
            padding: 8px 14px;
            border: 1px solid transparent;
            border-radius: 50px;
            transition: all var(--transition-base);
            white-space: nowrap;
        }
        .btn-nav-login:hover {
            color: var(--accent-gold);
            border-color: var(--border-gold);
        }
        .btn-nav-signup {
            background: var(--accent-gold);
            color: var(--bg-primary);
            font-weight: 800;
            font-size: 0.85rem;
            padding: 9px 20px;
            border-radius: 50px;
            box-shadow: 0 4px 16px var(--shadow-gold);
            transition: all var(--transition-base);
            white-space: nowrap;
        }
        .btn-nav-signup:hover {
            background: var(--accent-gold-soft);
            box-shadow: 0 6px 22px var(--shadow-gold-hover);
            transform: translateY(-1px);
        }

        .nav-toggle {
            display: none;
            background: transparent;
            color: var(--text-mint);
            font-size: 1.5rem;
            padding: 6px;
            border-radius: var(--radius-sm);
            transition: all var(--transition-base);
        }
        .nav-toggle:hover {
            color: var(--accent-gold);
        }

        /* ===== HERO ===== */
        .hero {
            position: relative;
            margin-top: var(--nav-height);
            min-height: calc(100vh - var(--nav-height));
            display: flex;
            align-items: center;
            background: url('/assets/images/backpic/back-1.jpg') center/cover no-repeat;
            background-attachment: fixed;
            padding: var(--space-xl) 0;
        }
        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(10, 46, 28, 0.85) 0%, rgba(10, 46, 28, 0.55) 50%, rgba(10, 46, 28, 0.8) 100%);
            pointer-events: none;
        }
        .hero .container {
            position: relative;
            z-index: 2;
            display: flex;
            flex-direction: column;
            align-items: flex-start;
            gap: var(--space-lg);
        }
        .hero-badge-row {
            display: flex;
            flex-wrap: wrap;
            gap: var(--space-sm);
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(255, 215, 0, 0.15);
            color: var(--accent-gold);
            border: 1px solid var(--border-gold);
            padding: 6px 14px;
            border-radius: 50px;
            font-size: 0.75rem;
            font-weight: 700;
            letter-spacing: 0.04em;
            text-transform: uppercase;
        }
        .hero-badge.hero-badge-red {
            background: rgba(211, 47, 47, 0.2);
            color: var(--accent-red-soft);
            border-color: rgba(211, 47, 47, 0.5);
        }
        .hero h1 {
            font-size: clamp(1.9rem, 4.5vw, 3.2rem);
            font-weight: 900;
            line-height: 1.2;
            letter-spacing: -0.01em;
            max-width: 850px;
            color: var(--text-white);
            text-shadow: 0 2px 20px rgba(0, 0, 0, 0.6);
        }
        .hero h1 .gold-text {
            color: var(--accent-gold);
            text-shadow: 0 0 24px rgba(255, 215, 0, 0.45);
        }
        .hero-desc {
            font-size: 1.05rem;
            line-height: 1.7;
            color: var(--text-mint);
            max-width: 680px;
            text-shadow: 0 1px 8px rgba(0, 0, 0, 0.5);
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: var(--space-md);
            align-items: center;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 28px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 0.95rem;
            letter-spacing: 0.02em;
            transition: all var(--transition-base);
            text-decoration: none;
        }
        .btn-gold {
            background: var(--accent-gold);
            color: var(--bg-primary);
            box-shadow: 0 6px 24px var(--shadow-gold-hover);
        }
        .btn-gold:hover {
            background: var(--accent-gold-soft);
            transform: translateY(-2px);
            box-shadow: 0 10px 32px var(--shadow-gold-hover);
        }
        .btn-outline-gold {
            background: transparent;
            color: var(--accent-gold);
            border: 2px solid var(--border-gold-strong);
        }
        .btn-outline-gold:hover {
            background: rgba(255, 215, 0, 0.1);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px var(--shadow-gold);
        }
        .hero-trust-row {
            display: flex;
            flex-wrap: wrap;
            gap: var(--space-md);
            align-items: center;
            margin-top: var(--space-sm);
        }
        .trust-item {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.8rem;
            color: var(--text-mint);
        }
        .trust-item i {
            color: var(--accent-gold);
            font-size: 1rem;
        }
        .badge-18 {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 42px;
            height: 42px;
            border-radius: 50%;
            background: var(--accent-red);
            color: var(--text-white);
            font-weight: 900;
            font-size: 0.9rem;
            border: 2px solid rgba(255, 255, 255, 0.5);
        }

        /* ===== SECTIONS GENERAL ===== */
        .section {
            padding: var(--space-xl) 0;
        }
        .section-alt {
            background: var(--bg-secondary);
        }
        .section-header {
            margin-bottom: var(--space-lg);
            display: flex;
            flex-direction: column;
            gap: var(--space-sm);
            align-items: flex-start;
        }
        .section-tag {
            display: inline-block;
            font-size: 0.72rem;
            font-weight: 700;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--accent-gold);
            background: rgba(255, 215, 0, 0.1);
            border: 1px solid var(--border-gold);
            padding: 4px 12px;
            border-radius: 50px;
        }
        .section-title {
            font-size: clamp(1.5rem, 3vw, 2.2rem);
            font-weight: 800;
            line-height: 1.25;
            color: var(--text-white);
        }
        .section-desc {
            font-size: 0.95rem;
            line-height: 1.65;
            color: var(--text-mint);
            max-width: 720px;
        }

        /* ===== FEATURED PROMOTIONS ===== */
        .promo-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
            gap: var(--space-md);
        }
        .promo-card {
            background: var(--bg-card);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-md);
            padding: var(--space-lg);
            transition: all var(--transition-base);
            position: relative;
            overflow: hidden;
        }
        .promo-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 4px;
            height: 100%;
            background: var(--accent-gold);
            opacity: 0;
            transition: opacity var(--transition-base);
        }
        .promo-card:hover {
            box-shadow: 0 8px 30px var(--shadow-gold);
            transform: translateY(-4px);
            border-color: var(--border-gold-strong);
        }
        .promo-card:hover::before {
            opacity: 1;
        }
        .promo-icon {
            font-size: 2rem;
            color: var(--accent-gold);
            margin-bottom: var(--space-md);
        }
        .promo-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: var(--space-sm);
            color: var(--text-white);
        }
        .promo-card p {
            font-size: 0.85rem;
            line-height: 1.6;
            color: var(--text-mint);
        }
        .promo-tag {
            display: inline-block;
            margin-top: var(--space-md);
            font-size: 0.7rem;
            font-weight: 700;
            letter-spacing: 0.04em;
            text-transform: uppercase;
            color: var(--accent-red-soft);
            background: rgba(211, 47, 47, 0.15);
            padding: 4px 10px;
            border-radius: 50px;
        }

        /* ===== GAME COLLECTION ===== */
        .game-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
            gap: var(--space-md);
        }
        .game-card {
            background: var(--bg-card);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition-base);
            position: relative;
            display: flex;
            flex-direction: column;
        }
        .game-card:hover {
            box-shadow: 0 10px 36px var(--shadow-gold-hover);
            transform: translateY(-6px);
            border-color: var(--border-gold-strong);
        }
        .game-thumb {
            position: relative;
            height: 160px;
            overflow: hidden;
        }
        .game-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }
        .game-card:hover .game-thumb img {
            transform: scale(1.08);
        }
        .game-thumb .game-hot {
            position: absolute;
            top: 10px;
            right: 10px;
            background: var(--accent-red);
            color: white;
            font-size: 0.68rem;
            font-weight: 800;
            letter-spacing: 0.06em;
            text-transform: uppercase;
            padding: 4px 10px;
            border-radius: 50px;
            box-shadow: 0 2px 10px rgba(211, 47, 47, 0.5);
        }
        .game-thumb .game-new-tag {
            position: absolute;
            top: 10px;
            left: 10px;
            background: var(--accent-gold);
            color: var(--bg-primary);
            font-size: 0.68rem;
            font-weight: 800;
            letter-spacing: 0.06em;
            text-transform: uppercase;
            padding: 4px 10px;
            border-radius: 50px;
        }
        .game-body {
            padding: var(--space-md);
            display: flex;
            flex-direction: column;
            gap: var(--space-sm);
            flex: 1;
        }
        .game-body h3 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-white);
            line-height: 1.3;
        }
        .game-meta {
            display: flex;
            align-items: center;
            gap: var(--space-sm);
            flex-wrap: wrap;
        }
        .game-meta span {
            font-size: 0.75rem;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .game-meta .rtp-high {
            color: var(--accent-gold);
            font-weight: 700;
        }
        .game-btn {
            margin-top: auto;
            display: block;
            text-align: center;
            background: rgba(255, 215, 0, 0.12);
            color: var(--accent-gold);
            border: 1px solid var(--border-gold);
            border-radius: 50px;
            padding: 8px 14px;
            font-size: 0.8rem;
            font-weight: 700;
            transition: all var(--transition-base);
        }
        .game-btn:hover {
            background: var(--accent-gold);
            color: var(--bg-primary);
        }

        /* ===== RANKING LIST ===== */
        .rank-layout {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: var(--space-lg);
            align-items: start;
        }
        .rank-list {
            display: flex;
            flex-direction: column;
            gap: var(--space-sm);
        }
        .rank-item {
            display: flex;
            align-items: center;
            gap: var(--space-md);
            background: var(--bg-card);
            border: 1px solid rgba(255, 215, 0, 0.2);
            border-radius: var(--radius-sm);
            padding: var(--space-md);
            transition: all var(--transition-base);
        }
        .rank-item:hover {
            border-color: var(--border-gold-strong);
            box-shadow: 0 4px 16px var(--shadow-gold);
        }
        .rank-num {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            flex-shrink: 0;
            border-radius: 50%;
            background: var(--bg-secondary);
            color: var(--accent-gold);
            font-weight: 800;
            font-size: 0.95rem;
            border: 1px solid var(--border-gold);
        }
        .rank-num.rank-top {
            background: var(--accent-gold);
            color: var(--bg-primary);
            box-shadow: 0 0 16px var(--shadow-gold);
        }
        .rank-info {
            flex: 1;
            min-width: 0;
        }
        .rank-info h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--text-white);
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        .rank-info p {
            font-size: 0.75rem;
            color: var(--text-muted);
            margin-top: 2px;
        }
        .rank-stats {
            display: flex;
            gap: var(--space-md);
            flex-shrink: 0;
        }
        .rank-stat {
            display: flex;
            flex-direction: column;
            align-items: flex-end;
            gap: 2px;
        }
        .rank-stat .stat-val {
            font-size: 0.85rem;
            font-weight: 800;
            color: var(--accent-gold);
        }
        .rank-stat .stat-label {
            font-size: 0.65rem;
            color: var(--text-muted);
            letter-spacing: 0.04em;
            text-transform: uppercase;
        }
        .rank-sidebar {
            display: flex;
            flex-direction: column;
            gap: var(--space-md);
        }
        .rank-side-card {
            background: var(--bg-card);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-md);
            padding: var(--space-md);
            display: flex;
            gap: var(--space-md);
            align-items: center;
        }
        .rank-side-card img {
            width: 72px;
            height: 72px;
            object-fit: cover;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-gold);
            flex-shrink: 0;
        }
        .rank-side-card h4 {
            font-size: 0.9rem;
            font-weight: 700;
            color: var(--text-white);
        }
        .rank-side-card p {
            font-size: 0.72rem;
            color: var(--text-muted);
            margin-top: 4px;
        }

        /* ===== TIPS SECTION ===== */
        .tips-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: var(--space-md);
        }
        .tip-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px solid rgba(255, 215, 0, 0.2);
            padding: var(--space-lg);
            transition: all var(--transition-base);
            display: flex;
            flex-direction: column;
            gap: var(--space-sm);
        }
        .tip-card:hover {
            border-color: var(--border-gold-strong);
            box-shadow: 0 6px 24px var(--shadow-gold);
        }
        .tip-card .tip-icon {
            font-size: 1.8rem;
            color: var(--accent-gold);
        }
        .tip-card h3 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-white);
        }
        .tip-card p {
            font-size: 0.85rem;
            line-height: 1.65;
            color: var(--text-mint);
        }

        /* ===== NEWS SECTION ===== */
        .news-layout {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: var(--space-lg);
            align-items: start;
        }
        .news-main {
            display: flex;
            flex-direction: column;
            gap: var(--space-sm);
        }
        .news-item {
            display: flex;
            align-items: flex-start;
            gap: var(--space-md);
            background: var(--bg-card);
            border: 1px solid rgba(255, 215, 0, 0.15);
            border-radius: var(--radius-sm);
            padding: var(--space-md);
            transition: all var(--transition-base);
        }
        .news-item:hover {
            border-color: var(--border-gold-strong);
            box-shadow: 0 4px 16px var(--shadow-gold);
        }
        .news-item .news-bullet {
            flex-shrink: 0;
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: var(--accent-gold);
            margin-top: 8px;
        }
        .news-item .news-content {
            flex: 1;
            min-width: 0;
        }
        .news-item .news-title {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--text-white);
            line-height: 1.45;
        }
        .news-item .news-meta {
            font-size: 0.72rem;
            color: var(--text-muted);
            margin-top: 4px;
            display: flex;
            gap: var(--space-sm);
            flex-wrap: wrap;
        }
        .news-item .news-excerpt {
            font-size: 0.8rem;
            color: var(--text-mint);
            margin-top: 6px;
            line-height: 1.55;
        }
        .news-sidebar {
            display: flex;
            flex-direction: column;
            gap: var(--space-md);
        }
        .news-side-title {
            font-size: 1rem;
            font-weight: 700;
            color: var(--accent-gold);
            letter-spacing: 0.04em;
            text-transform: uppercase;
        }
        .news-side-card {
            background: var(--bg-card);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-md);
            padding: var(--space-md);
            display: flex;
            gap: var(--space-md);
            align-items: center;
            transition: all var(--transition-base);
        }
        .news-side-card:hover {
            border-color: var(--border-gold-strong);
            box-shadow: 0 4px 16px var(--shadow-gold);
        }
        .news-side-card img {
            width: 64px;
            height: 64px;
            object-fit: cover;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-gold);
            flex-shrink: 0;
        }
        .news-side-card h4 {
            font-size: 0.85rem;
            font-weight: 700;
            color: var(--text-white);
            line-height: 1.35;
        }
        .news-side-card p {
            font-size: 0.7rem;
            color: var(--text-muted);
            margin-top: 3px;
        }

        /* ===== SECURITY SECTION ===== */
        .security-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
            gap: var(--space-md);
        }
        .security-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px solid rgba(255, 215, 0, 0.2);
            padding: var(--space-lg);
            text-align: left;
            transition: all var(--transition-base);
        }
        .security-card:hover {
            border-color: var(--border-gold-strong);
            box-shadow: 0 6px 24px var(--shadow-gold);
        }
        .security-card .sec-icon {
            font-size: 2rem;
            color: var(--accent-gold);
            margin-bottom: var(--space-sm);
        }
        .security-card h3 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 6px;
        }
        .security-card p {
            font-size: 0.82rem;
            line-height: 1.6;
            color: var(--text-mint);
        }

        /* ===== FAQ ===== */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: var(--space-sm);
            max-width: 800px;
        }
        .faq-item {
            background: var(--bg-card);
            border: 1px solid rgba(255, 215, 0, 0.2);
            border-radius: var(--radius-sm);
            overflow: hidden;
            transition: all var(--transition-base);
        }
        .faq-item:hover {
            border-color: var(--border-gold-strong);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: var(--space-md);
            padding: var(--space-md) var(--space-lg);
            cursor: pointer;
            font-weight: 700;
            font-size: 0.95rem;
            color: var(--text-white);
            transition: color var(--transition-base);
            background: transparent;
            width: 100%;
            text-align: left;
            border: none;
        }
        .faq-question:hover {
            color: var(--accent-gold);
        }
        .faq-question i {
            transition: transform var(--transition-base);
            color: var(--accent-gold);
        }
        .faq-item.open .faq-question i {
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-base);
            padding: 0 var(--space-lg);
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding-bottom: var(--space-md);
        }
        .faq-answer p {
            font-size: 0.85rem;
            line-height: 1.65;
            color: var(--text-mint);
        }

        /* ===== CTA SECTION ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--bg-secondary), var(--bg-primary));
            border-top: 1px solid var(--border-gold);
            border-bottom: 1px solid var(--border-gold);
            padding: var(--space-xl) 0;
            text-align: left;
        }
        .cta-section .container {
            display: flex;
            flex-direction: column;
            align-items: flex-start;
            gap: var(--space-md);
        }
        .cta-section h2 {
            font-size: clamp(1.5rem, 3vw, 2rem);
            font-weight: 800;
            color: var(--text-white);
        }
        .cta-section p {
            font-size: 0.95rem;
            color: var(--text-mint);
            max-width: 600px;
        }
        .cta-actions {
            display: flex;
            flex-wrap: wrap;
            gap: var(--space-md);
        }

        /* ===== FAB ===== */
        .fab-left {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: 50;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: #0A0A0A;
            border: 2px solid var(--accent-gold);
            box-shadow: 0 4px 20px rgba(255, 215, 0, 0.3);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            opacity: 0.7;
            transition: all var(--transition-base);
            animation: fabBreathe 4s ease-in-out infinite;
            position: fixed;
        }
        .fab-left i {
            font-size: 1.5rem;
            color: var(--accent-gold);
            transition: transform var(--transition-base);
        }
        .fab-left:hover {
            opacity: 1;
            transform: scale(1.1);
            box-shadow: 0 8px 30px rgba(255, 215, 0, 0.5);
        }
        .fab-left:hover i {
            transform: rotate(360deg);
        }
        .fab-left:active {
            transform: scale(0.95) translateY(2px);
        }
        .fab-left .fab-dot {
            position: absolute;
            top: -2px;
            right: -2px;
            width: 16px;
            height: 16px;
            border-radius: 50%;
            background: var(--accent-red);
            border: 2px solid #0A0A0A;
            animation: blinkDot 1.2s ease-in-out infinite;
        }
        @keyframes fabBreathe {
            0%, 100% { transform: translateY(0); }
            50% { transform: translateY(-8px); }
        }
        @keyframes blinkDot {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.3; }
        }

        /* ===== FOOTER ===== */
        .site-footer {
            background: #081F14;
            border-top: 1px solid var(--border-gold);
            padding: var(--space-xl) 0 var(--space-lg);
            margin-top: auto;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: var(--space-lg);
            margin-bottom: var(--space-lg);
        }
        .footer-col h3 {
            font-size: 0.9rem;
            font-weight: 700;
            color: var(--accent-gold);
            letter-spacing: 0.04em;
            text-transform: uppercase;
            margin-bottom: var(--space-md);
        }
        .footer-col p,
        .footer-col a {
            font-size: 0.82rem;
            color: var(--text-mint);
            line-height: 1.6;
            display: block;
            margin-bottom: var(--space-sm);
            transition: color var(--transition-base);
        }
        .footer-col a:hover {
            color: var(--accent-gold);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 215, 0, 0.2);
            padding-top: var(--space-md);
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: var(--space-sm);
        }
        .footer-bottom p {
            font-size: 0.75rem;
            color: var(--text-muted);
        }
        .footer-badges {
            display: flex;
            gap: var(--space-sm);
            flex-wrap: wrap;
        }
        .footer-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.7rem;
            font-weight: 600;
            color: var(--text-mint);
            background: rgba(255, 215, 0, 0.08);
            border: 1px solid var(--border-gold);
            padding: 5px 12px;
            border-radius: 50px;
        }

        /* ===== RESPONSIVE ===== */
        @media (max-width: 1024px) {
            .rank-layout,
            .news-layout {
                grid-template-columns: 1fr;
            }
            .rank-sidebar,
            .news-sidebar {
                flex-direction: row;
                flex-wrap: wrap;
            }
            .news-side-card,
            .rank-side-card {
                flex: 1;
                min-width: 220px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --nav-height: 60px;
                --space-xl: 40px;
                --space-xxl: 56px;
            }
            .container {
                padding: 0 var(--space-md);
            }
            .nav-logo a {
                font-size: 0.95rem;
                max-width: 150px;
            }
            .nav-logo .logo-sub {
                display: none;
            }
            .nav-links {
                display: none;
                position: fixed;
                top: var(--nav-height);
                left: 0;
                width: 100%;
                background: rgba(10, 46, 28, 0.98);
                backdrop-filter: blur(12px);
                flex-direction: column;
                padding: var(--space-md);
                gap: var(--space-xs);
                border-bottom: 1px solid var(--border-gold);
                box-shadow: 0 8px 24px rgba(0, 0, 0, 0.5);
            }
            .nav-links.open {
                display: flex;
            }
            .nav-links li {
                width: 100%;
            }
            .nav-links li a {
                display: block;
                padding: 12px 16px;
                border-radius: var(--radius-sm);
                font-size: 0.95rem;
            }
            .nav-toggle {
                display: inline-flex;
                align-items: center;
                justify-content: center;
            }
            .btn-nav-login {
                padding: 7px 10px;
                font-size: 0.78rem;
            }
            .btn-nav-signup {
                padding: 8px 14px;
                font-size: 0.78rem;
            }
            .hero {
                min-height: auto;
                padding: var(--space-lg) 0;
                background-attachment: scroll;
            }
            .hero h1 {
                font-size: 1.6rem;
            }
            .hero-desc {
                font-size: 0.9rem;
            }
            .hero-actions .btn {
                padding: 12px 20px;
                font-size: 0.85rem;
            }
            .game-grid {
                grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
                gap: var(--space-sm);
            }
            .game-thumb {
                height: 120px;
            }
            .game-body {
                padding: var(--space-sm);
            }
            .game-body h3 {
                font-size: 0.85rem;
            }
            .rank-item {
                flex-wrap: wrap;
                gap: var(--space-sm);
            }
            .rank-stats {
                width: 100%;
                justify-content: flex-end;
            }
            .promo-grid,
            .tips-grid,
            .security-grid {
                grid-template-columns: 1fr;
            }
            .news-sidebar {
                flex-direction: column;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .fab-left {
                left: 12px;
                bottom: 80px;
                width: 48px;
                height: 48px;
            }
            .fab-left i {
                font-size: 1.2rem;
            }
        }

        @media (max-width: 520px) {
            .hero-badge {
                font-size: 0.65rem;
                padding: 4px 10px;
            }
            .hero h1 {
                font-size: 1.35rem;
            }
            .hero-actions {
                flex-direction: column;
                align-items: flex-start;
            }
            .game-grid {
                grid-template-columns: 1fr 1fr;
                gap: var(--space-xs);
            }
            .game-thumb {
                height: 100px;
            }
            .game-body h3 {
                font-size: 0.78rem;
            }
            .game-body .game-meta span {
                font-size: 0.65rem;
            }
            .section-title {
                font-size: 1.3rem;
            }
        }

/* roulang page: article */
:root {
            --color-bg-primary: #0A2E1C;
            --color-bg-secondary: #123E25;
            --color-bg-deep: #082318;
            --color-bg-mid: #0E3320;
            --color-accent-gold: #FFD700;
            --color-accent-gold-light: #FFE566;
            --color-accent-gold-dark: #C9A600;
            --color-accent-red: #D32F2F;
            --color-accent-red-light: #E53A3A;
            --color-text-white: #FFFFFF;
            --color-text-mint: #D1F2EB;
            --color-text-muted: #99C9B8;
            --color-border-gold: rgba(255, 215, 0, 0.35);
            --color-border-faint: rgba(209, 242, 235, 0.12);
            --font-primary: 'Be Vietnam Pro', 'Inter', sans-serif;
            --font-body: 'Inter', 'Be Vietnam Pro', sans-serif;
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 22px;
            --radius-xl: 32px;
            --shadow-soft: 0 8px 28px rgba(0, 0, 0, 0.3);
            --shadow-gold: 0 4px 20px rgba(255, 215, 0, 0.18);
            --shadow-gold-hover: 0 8px 32px rgba(255, 215, 0, 0.28);
            --spacing-xs: 0.5rem;
            --spacing-sm: 1rem;
            --spacing-md: 1.75rem;
            --spacing-lg: 3rem;
            --spacing-xl: 5rem;
            --container-max: 1180px;
            --transition-fast: 0.2s ease;
            --transition-base: 0.35s ease;
        }

        *,
        *::before,
        *::after {
            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(--color-bg-primary);
            color: var(--color-text-white);
            line-height: 1.6;
            font-size: 16px;
            overflow-x: hidden;
            min-height: 100vh;
        }

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

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

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

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

        ul {
            list-style: none;
        }

        .container {
            width: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding-left: 1.25rem;
            padding-right: 1.25rem;
        }

        /* ========== HEADER ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(8, 35, 24, 0.96);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--color-border-gold);
            padding: 0.8rem 0;
            box-shadow: 0 6px 30px rgba(0, 0, 0, 0.35);
            transition: box-shadow var(--transition-base);
        }

        .site-header.scrolled {
            box-shadow: 0 8px 36px rgba(0, 0, 0, 0.5), 0 2px 0 rgba(255, 215, 0, 0.15);
        }

        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            flex-wrap: nowrap;
        }

        .nav-logo {
            display: flex;
            flex-direction: column;
            line-height: 1.2;
            flex-shrink: 0;
        }

        .nav-logo a {
            font-family: var(--font-primary);
            font-size: 1.25rem;
            font-weight: 800;
            color: var(--color-accent-gold);
            letter-spacing: -0.02em;
            transition: color var(--transition-fast);
            white-space: nowrap;
        }

        .nav-logo a:hover {
            color: var(--color-accent-gold-light);
        }

        .logo-sub {
            font-size: 0.65rem;
            font-weight: 500;
            color: var(--color-text-mint);
            letter-spacing: 0.05em;
            text-transform: uppercase;
            white-space: nowrap;
        }

        .nav-menu-wrapper {
            display: flex;
            align-items: center;
            gap: 1.25rem;
            flex-shrink: 0;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 1.75rem;
        }

        .nav-links li a {
            font-family: var(--font-primary);
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--color-text-mint);
            padding: 0.5rem 0;
            position: relative;
            white-space: nowrap;
            transition: color var(--transition-fast);
        }

        .nav-links li a::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--color-accent-gold);
            border-radius: 2px;
            transition: width var(--transition-base);
        }

        .nav-links li a:hover {
            color: var(--color-text-white);
        }

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

        .nav-links li a.active {
            color: var(--color-accent-gold);
        }

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

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

        .btn-nav-login,
        .btn-nav-signup {
            font-family: var(--font-primary);
            font-size: 0.85rem;
            font-weight: 600;
            padding: 0.5rem 1.1rem;
            border-radius: 50px;
            white-space: nowrap;
            transition: all var(--transition-base);
        }

        .btn-nav-login {
            background: transparent;
            color: var(--color-text-mint);
            border: 1px solid var(--color-border-faint);
        }

        .btn-nav-login:hover {
            border-color: var(--color-accent-gold);
            color: var(--color-accent-gold);
            background: rgba(255, 215, 0, 0.05);
        }

        .btn-nav-signup {
            background: linear-gradient(135deg, var(--color-accent-gold), var(--color-accent-gold-dark));
            color: #0A2E1C;
            border: none;
            box-shadow: 0 4px 16px rgba(255, 215, 0, 0.32);
        }

        .btn-nav-signup:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(255, 215, 0, 0.42);
            background: linear-gradient(135deg, var(--color-accent-gold-light), var(--color-accent-gold));
        }

        .nav-toggle {
            display: none;
            color: var(--color-text-white);
            font-size: 1.4rem;
            padding: 0.4rem 0.6rem;
            border-radius: 8px;
            background: rgba(255, 215, 0, 0.08);
            border: 1px solid var(--color-border-faint);
            transition: all var(--transition-fast);
        }

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

        /* ========== ARTICLE HERO ========== */
        .article-hero {
            position: relative;
            padding: 3rem 0 2rem;
            background: linear-gradient(160deg, var(--color-bg-deep) 0%, var(--color-bg-primary) 45%, var(--color-bg-secondary) 100%);
            border-bottom: 1px solid var(--color-border-faint);
            overflow: hidden;
        }

        .article-hero::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -15%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(255, 215, 0, 0.06) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

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

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 0.8rem;
            color: var(--color-text-muted);
            margin-bottom: 1.5rem;
            flex-wrap: wrap;
        }

        .breadcrumb a {
            color: var(--color-text-mint);
            transition: color var(--transition-fast);
        }

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

        .breadcrumb .separator {
            color: var(--color-accent-gold);
            font-size: 0.7rem;
        }

        .article-hero-meta {
            display: flex;
            align-items: center;
            gap: 1rem;
            margin-bottom: 1rem;
            flex-wrap: wrap;
        }

        .article-category-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.35rem;
            background: rgba(255, 215, 0, 0.12);
            color: var(--color-accent-gold);
            font-family: var(--font-primary);
            font-size: 0.75rem;
            font-weight: 700;
            padding: 0.35rem 0.9rem;
            border-radius: 50px;
            border: 1px solid var(--color-border-gold);
            letter-spacing: 0.03em;
            text-transform: uppercase;
        }

        .article-date {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            font-size: 0.8rem;
            color: var(--color-text-muted);
        }

        .article-hero h1 {
            font-family: var(--font-primary);
            font-size: clamp(1.75rem, 3.5vw, 2.75rem);
            font-weight: 900;
            color: var(--color-text-white);
            line-height: 1.25;
            letter-spacing: -0.02em;
            margin-bottom: 1rem;
            max-width: 900px;
        }

        .article-hero-summary {
            font-size: 1.05rem;
            color: var(--color-text-mint);
            max-width: 780px;
            line-height: 1.65;
            margin-bottom: 1.5rem;
        }

        .article-hero-cta {
            display: inline-flex;
            align-items: center;
            gap: 0.6rem;
            font-family: var(--font-primary);
            font-size: 0.95rem;
            font-weight: 700;
            padding: 0.75rem 1.75rem;
            background: linear-gradient(135deg, var(--color-accent-gold), var(--color-accent-gold-dark));
            color: #0A2E1C;
            border-radius: 50px;
            box-shadow: 0 6px 22px rgba(255, 215, 0, 0.32);
            transition: all var(--transition-base);
        }

        .article-hero-cta:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 32px rgba(255, 215, 0, 0.44);
            background: linear-gradient(135deg, var(--color-accent-gold-light), var(--color-accent-gold));
        }

        /* ========== ARTICLE BANNER ========== */
        .article-banner {
            padding: 2rem 0 1rem;
        }

        .article-banner .container {
            position: relative;
        }

        .article-banner-image {
            width: 100%;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-soft);
            border: 1px solid var(--color-border-gold);
        }

        .article-banner-image img {
            width: 100%;
            height: auto;
            max-height: 520px;
            object-fit: cover;
            border-radius: var(--radius-lg);
            transition: transform var(--transition-base);
        }

        .article-banner-image:hover img {
            transform: scale(1.01);
        }

        /* ========== ARTICLE CONTENT ========== */
        .article-content-section {
            padding: 1.5rem 0 2.5rem;
        }

        .article-content-section .container {
            max-width: 820px;
        }

        .article-body {
            font-size: 1.02rem;
            line-height: 1.7;
            color: var(--color-text-mint);
        }

        .article-body h2 {
            font-family: var(--font-primary);
            font-size: 1.55rem;
            font-weight: 800;
            color: var(--color-text-white);
            margin: 2rem 0 0.85rem;
            line-height: 1.3;
            letter-spacing: -0.01em;
            position: relative;
            padding-left: 1rem;
        }

        .article-body h2::before {
            content: '';
            position: absolute;
            left: 0;
            top: 0.2em;
            height: 1.0em;
            width: 4px;
            background: linear-gradient(180deg, var(--color-accent-gold), var(--color-accent-red));
            border-radius: 4px;
        }

        .article-body h3 {
            font-family: var(--font-primary);
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--color-text-white);
            margin: 1.5rem 0 0.6rem;
            line-height: 1.35;
        }

        .article-body p {
            margin-bottom: 1rem;
        }

        .article-body ul,
        .article-body ol {
            margin: 0.8rem 0 1rem;
            padding-left: 1.5rem;
        }

        .article-body ul li,
        .article-body ol li {
            margin-bottom: 0.45rem;
            position: relative;
        }

        .article-body ul li::before {
            content: '•';
            color: var(--color-accent-gold);
            font-weight: bold;
            position: absolute;
            left: -1.2rem;
        }

        .article-body ol {
            list-style: decimal;
        }

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

        .article-body blockquote {
            margin: 1.5rem 0;
            padding: 1.25rem 1.5rem;
            background: rgba(255, 215, 0, 0.05);
            border-left: 4px solid var(--color-accent-gold);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            font-style: italic;
            color: var(--color-text-white);
            font-size: 1.05rem;
        }

        .article-body img {
            border-radius: var(--radius-md);
            margin: 1.25rem 0;
            box-shadow: var(--shadow-soft);
        }

        .article-body table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.25rem 0;
        }

        .article-body table th,
        .article-body table td {
            padding: 0.7rem 1rem;
            text-align: left;
            border-bottom: 1px solid var(--color-border-faint);
        }

        .article-body table th {
            background: rgba(255, 215, 0, 0.08);
            color: var(--color-accent-gold);
            font-weight: 700;
            font-family: var(--font-primary);
            font-size: 0.9rem;
        }

        .article-body table td {
            color: var(--color-text-mint);
            font-size: 0.9rem;
        }

        .article-not-found {
            text-align: center;
            padding: 3rem 0;
        }

        .article-not-found h2 {
            font-family: var(--font-primary);
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--color-text-white);
            margin-bottom: 1rem;
        }

        .article-not-found a {
            display: inline-block;
            padding: 0.7rem 1.75rem;
            background: linear-gradient(135deg, var(--color-accent-gold), var(--color-accent-gold-dark));
            color: #0A2E1C;
            font-weight: 700;
            border-radius: 50px;
            box-shadow: var(--shadow-gold);
            transition: all var(--transition-base);
        }

        .article-not-found a:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-gold-hover);
        }

        /* ========== PULL QUOTE ========== */
        .pull-quote-section {
            padding: 2.5rem 0;
            background: linear-gradient(180deg, var(--color-bg-primary) 0%, var(--color-bg-deep) 100%);
            border-top: 1px solid var(--color-border-faint);
            border-bottom: 1px solid var(--color-border-faint);
        }

        .pull-quote-card {
            max-width: 760px;
            margin: 0 auto;
            text-align: center;
            padding: 2.5rem 2rem;
            background: rgba(255, 215, 0, 0.04);
            border: 1px solid var(--color-border-gold);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-gold);
            position: relative;
        }

        .pull-quote-card::before {
            content: '\201C';
            font-family: Georgia, serif;
            font-size: 5rem;
            font-weight: bold;
            color: var(--color-accent-gold);
            opacity: 0.35;
            position: absolute;
            top: -0.5rem;
            left: 1.5rem;
            line-height: 1;
        }

        .pull-quote-card blockquote {
            font-family: var(--font-primary);
            font-size: 1.2rem;
            font-weight: 600;
            color: var(--color-text-white);
            line-height: 1.55;
            font-style: italic;
            margin-bottom: 0.8rem;
        }

        .pull-quote-author {
            font-size: 0.85rem;
            color: var(--color-accent-gold);
            font-weight: 600;
            letter-spacing: 0.03em;
            text-transform: uppercase;
        }

        /* ========== TIPS SECTION ========== */
        .tips-section {
            padding: 3.5rem 0;
            background: var(--color-bg-primary);
        }

        .section-heading {
            margin-bottom: 2rem;
        }

        .section-heading h2 {
            font-family: var(--font-primary);
            font-size: clamp(1.5rem, 2.5vw, 2rem);
            font-weight: 800;
            color: var(--color-text-white);
            letter-spacing: -0.01em;
            margin-bottom: 0.5rem;
        }

        .section-heading p {
            color: var(--color-text-muted);
            font-size: 1rem;
            max-width: 600px;
        }

        .tips-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
            gap: 1.25rem;
        }

        .tip-card {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--color-border-faint);
            border-radius: var(--radius-md);
            padding: 1.5rem;
            transition: all var(--transition-base);
            position: relative;
            overflow: hidden;
        }

        .tip-card::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--color-accent-gold), transparent);
            border-radius: 0 0 var(--radius-md) var(--radius-md);
            opacity: 0;
            transition: opacity var(--transition-base);
        }

        .tip-card:hover {
            border-color: var(--color-border-gold);
            background: rgba(255, 215, 0, 0.05);
            transform: translateY(-4px);
            box-shadow: var(--shadow-gold-hover);
        }

        .tip-card:hover::after {
            opacity: 1;
        }

        .tip-icon {
            width: 46px;
            height: 46px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(255, 215, 0, 0.12);
            border-radius: 12px;
            color: var(--color-accent-gold);
            font-size: 1.2rem;
            margin-bottom: 1rem;
            transition: all var(--transition-base);
        }

        .tip-card:hover .tip-icon {
            background: rgba(255, 215, 0, 0.2);
            transform: scale(1.08);
        }

        .tip-card h3 {
            font-family: var(--font-primary);
            font-size: 1.02rem;
            font-weight: 700;
            color: var(--color-text-white);
            margin-bottom: 0.5rem;
            line-height: 1.35;
        }

        .tip-card p {
            font-size: 0.88rem;
            color: var(--color-text-muted);
            line-height: 1.55;
        }

        /* ========== FAQ ========== */
        .faq-section {
            padding: 3.5rem 0;
            background: var(--color-bg-deep);
            border-top: 1px solid var(--color-border-faint);
            border-bottom: 1px solid var(--color-border-faint);
        }

        .faq-list {
            max-width: 760px;
            display: flex;
            flex-direction: column;
            gap: 0.85rem;
        }

        .faq-item {
            border: 1px solid var(--color-border-faint);
            border-radius: var(--radius-md);
            background: rgba(255, 255, 255, 0.03);
            overflow: hidden;
            transition: all var(--transition-fast);
        }

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

        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            padding: 1.05rem 1.35rem;
            font-family: var(--font-primary);
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--color-text-white);
            text-align: left;
            background: transparent;
            border: none;
            cursor: pointer;
            transition: color var(--transition-fast);
        }

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

        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(255, 215, 0, 0.1);
            border-radius: 50%;
            color: var(--color-accent-gold);
            font-size: 0.75rem;
            transition: transform var(--transition-base);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-base) ease;
        }

        .faq-answer-inner {
            padding: 0 1.35rem 1.15rem;
            color: var(--color-text-muted);
            font-size: 0.9rem;
            line-height: 1.6;
        }

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

        .faq-item.open .faq-icon {
            transform: rotate(45deg);
            background: rgba(255, 215, 0, 0.18);
        }

        /* ========== CTA ========== */
        .cta-section {
            padding: 4rem 0;
            background: linear-gradient(135deg, var(--color-bg-deep) 0%, var(--color-bg-mid) 60%, var(--color-bg-secondary) 100%);
            position: relative;
            overflow: hidden;
            border-top: 1px solid var(--color-border-gold);
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -40%;
            left: 50%;
            transform: translateX(-50%);
            width: 700px;
            height: 700px;
            background: radial-gradient(circle, rgba(255, 215, 0, 0.08) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-section .container {
            position: relative;
            z-index: 1;
            text-align: center;
        }

        .cta-box {
            max-width: 650px;
            margin: 0 auto;
        }

        .cta-box h2 {
            font-family: var(--font-primary);
            font-size: clamp(1.6rem, 3vw, 2.25rem);
            font-weight: 900;
            color: var(--color-text-white);
            margin-bottom: 1rem;
            letter-spacing: -0.015em;
        }

        .cta-box p {
            color: var(--color-text-mint);
            font-size: 1.05rem;
            line-height: 1.65;
            margin-bottom: 1.75rem;
        }

        .cta-buttons {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 1rem;
            flex-wrap: wrap;
        }

        .btn-cta-primary,
        .btn-cta-secondary {
            font-family: var(--font-primary);
            font-size: 0.95rem;
            font-weight: 700;
            padding: 0.8rem 1.9rem;
            border-radius: 50px;
            transition: all var(--transition-base);
            white-space: nowrap;
        }

        .btn-cta-primary {
            background: linear-gradient(135deg, var(--color-accent-gold), var(--color-accent-gold-dark));
            color: #0A2E1C;
            box-shadow: 0 6px 22px rgba(255, 215, 0, 0.32);
        }

        .btn-cta-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 32px rgba(255, 215, 0, 0.44);
            background: linear-gradient(135deg, var(--color-accent-gold-light), var(--color-accent-gold));
        }

        .btn-cta-secondary {
            background: transparent;
            color: var(--color-text-mint);
            border: 1px solid var(--color-border-gold);
        }

        .btn-cta-secondary:hover {
            border-color: var(--color-accent-gold);
            color: var(--color-accent-gold);
            background: rgba(255, 215, 0, 0.06);
            transform: translateY(-3px);
        }

        /* ========== FAB ========== */
        .fab-support {
            position: fixed;
            left: 1rem;
            bottom: 6rem;
            z-index: 950;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: radial-gradient(circle at 30% 25%, #1A2E0D 0%, #0A0F05 60%, #000000 100%);
            border: 2px solid var(--color-accent-gold);
            box-shadow: 0 4px 20px rgba(255, 215, 0, 0.3), inset 0 1px 0 rgba(255, 255, 255, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            opacity: 0.7;
            transition: all var(--transition-base);
            position: fixed;
        }

        .fab-support::after {
            content: '';
            position: absolute;
            inset: -5px;
            border-radius: 50%;
            border: 1px solid rgba(255, 215, 0, 0.2);
            animation: fabBreath 2.5s ease-in-out infinite;
            pointer-events: none;
        }

        .fab-support i {
            color: var(--color-accent-gold);
            font-size: 1.3rem;
            transition: transform var(--transition-base);
        }

        .fab-support:hover {
            opacity: 1;
            transform: scale(1.1);
            box-shadow: 0 8px 28px rgba(255, 215, 0, 0.45), inset 0 1px 0 rgba(255, 255, 255, 0.1);
        }

        .fab-support:hover i {
            transform: rotate(360deg);
        }

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

        .fab-notification {
            position: absolute;
            top: -2px;
            right: -2px;
            width: 14px;
            height: 14px;
            background: var(--color-accent-red);
            border-radius: 50%;
            border: 2px solid #0A2E1C;
            animation: fabBlink 1.6s ease-in-out infinite;
        }

        @keyframes fabBreath {
            0%,
            100% {
                opacity: 0.5;
                transform: scale(1);
            }
            50% {
                opacity: 0.9;
                transform: scale(1.06);
            }
        }

        @keyframes fabBlink {
            0%,
            100% {
                opacity: 1;
            }
            50% {
                opacity: 0.4;
            }
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--color-bg-deep);
            border-top: 1px solid var(--color-border-gold);
            padding: 3rem 0 1.5rem;
        }

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

        .footer-col h3 {
            font-family: var(--font-primary);
            font-size: 1rem;
            font-weight: 700;
            color: var(--color-accent-gold);
            margin-bottom: 0.9rem;
            letter-spacing: 0.01em;
        }

        .footer-col p {
            font-size: 0.86rem;
            color: var(--color-text-muted);
            line-height: 1.55;
            margin-bottom: 0.35rem;
        }

        .footer-col a {
            display: block;
            font-size: 0.86rem;
            color: var(--color-text-mint);
            margin-bottom: 0.45rem;
            transition: color var(--transition-fast);
        }

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

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

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

        .footer-badges {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            flex-wrap: wrap;
        }

        .footer-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.35rem;
            font-size: 0.7rem;
            font-weight: 600;
            color: var(--color-text-mint);
            background: rgba(255, 255, 255, 0.05);
            padding: 0.3rem 0.8rem;
            border-radius: 50px;
            border: 1px solid var(--color-border-faint);
            white-space: nowrap;
        }

        .footer-badge i {
            color: var(--color-accent-gold);
            font-size: 0.7rem;
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 2rem;
            }

            .nav-links {
                gap: 1.2rem;
            }
        }

        @media (max-width: 768px) {
            .site-header {
                padding: 0.6rem 0;
            }

            .nav-links {
                position: fixed;
                top: 60px;
                right: 0;
                left: 0;
                background: rgba(8, 35, 24, 0.98);
                backdrop-filter: blur(20px);
                -webkit-backdrop-filter: blur(20px);
                flex-direction: column;
                align-items: flex-start;
                gap: 0;
                padding: 1rem 1.5rem 1.5rem;
                border-bottom: 1px solid var(--color-border-gold);
                border-top: 1px solid var(--color-border-faint);
                transform: translateY(-120%);
                opacity: 0;
                visibility: hidden;
                transition: all var(--transition-base);
                z-index: 999;
                box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
            }

            .nav-links.show {
                transform: translateY(0);
                opacity: 1;
                visibility: visible;
            }

            .nav-links li {
                width: 100%;
                border-bottom: 1px solid var(--color-border-faint);
            }

            .nav-links li:last-child {
                border-bottom: none;
            }

            .nav-links li a {
                display: block;
                padding: 0.85rem 0;
                font-size: 1rem;
                font-weight: 500;
            }

            .nav-links li a::after {
                display: none;
            }

            .nav-toggle {
                display: block;
            }

            .nav-auth {
                gap: 0.4rem;
            }

            .btn-nav-login,
            .btn-nav-signup {
                font-size: 0.75rem;
                padding: 0.42rem 0.8rem;
            }

            .nav-logo a {
                font-size: 1.05rem;
            }

            .logo-sub {
                font-size: 0.55rem;
            }

            .article-hero {
                padding: 2rem 0 1.5rem;
            }

            .article-hero h1 {
                font-size: 1.55rem;
            }

            .article-body h2 {
                font-size: 1.3rem;
            }

            .pull-quote-card {
                padding: 1.75rem 1.25rem;
            }

            .pull-quote-card blockquote {
                font-size: 1.02rem;
            }

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

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

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

            .cta-buttons {
                flex-direction: column;
                width: 100%;
                max-width: 300px;
                margin: 0 auto;
            }

            .btn-cta-primary,
            .btn-cta-secondary {
                width: 100%;
                text-align: center;
            }

            .fab-support {
                width: 48px;
                height: 48px;
                left: 0.8rem;
                bottom: 5.5rem;
            }
        }

        @media (max-width: 520px) {
            .nav-logo a {
                font-size: 0.92rem;
            }

            .logo-sub {
                font-size: 0.5rem;
                letter-spacing: 0.02em;
            }

            .nav-auth .btn-nav-login {
                padding: 0.4rem 0.6rem;
                font-size: 0.7rem;
            }

            .nav-auth .btn-nav-signup {
                padding: 0.4rem 0.7rem;
                font-size: 0.7rem;
            }

            .article-hero {
                padding: 1.5rem 0 1rem;
            }

            .article-hero h1 {
                font-size: 1.35rem;
            }

            .article-hero-summary {
                font-size: 0.9rem;
            }

            .article-category-badge {
                font-size: 0.65rem;
                padding: 0.3rem 0.7rem;
            }

            .article-date {
                font-size: 0.7rem;
            }

            .article-body {
                font-size: 0.95rem;
            }

            .article-body h2 {
                font-size: 1.2rem;
                padding-left: 0.75rem;
            }

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

            .pull-quote-card blockquote {
                font-size: 0.92rem;
            }

            .section-heading h2 {
                font-size: 1.3rem;
            }

            .faq-question {
                font-size: 0.85rem;
                padding: 0.9rem 1rem;
            }

            .faq-answer-inner {
                font-size: 0.82rem;
                padding: 0 1rem 1rem;
            }

            .fab-support {
                width: 44px;
                height: 44px;
                left: 0.6rem;
                bottom: 5rem;
            }

            .fab-support i {
                font-size: 1.1rem;
            }
        }

/* roulang page: category1 */
:root {
            --bg-deep: #08090F;
            --bg-navy: #0D111E;
            --bg-card: rgba(13, 17, 30, 0.72);
            --bg-card-hover: rgba(17, 24, 42, 0.88);
            --accent-blue: #0052FF;
            --accent-cyan: #00F0FF;
            --accent-glow: rgba(0, 240, 255, 0.45);
            --text-white: #FFFFFF;
            --text-silver: #CBD5E1;
            --text-muted: #8A94A6;
            --border-cyber: 1px solid rgba(0, 82, 255, 0.35);
            --border-cyber-bright: 1px solid rgba(0, 240, 255, 0.65);
            --border-glass: 1px solid rgba(203, 213, 225, 0.12);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-cyber: 0 0 18px rgba(0, 82, 255, 0.25), 0 0 6px rgba(0, 240, 255, 0.12);
            --shadow-cyber-hover: 0 0 28px rgba(0, 240, 255, 0.35), 0 0 12px rgba(0, 82, 255, 0.3);
            --shadow-glass: 0 8px 32px rgba(0, 0, 0, 0.45);
            --font-main: 'Be Vietnam Pro', system-ui, -apple-system, sans-serif;
            --transition-fast: 0.18s ease;
            --transition-mid: 0.28s ease;
            --transition-slow: 0.45s cubic-bezier(0.22, 1, 0.36, 1);
        }

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

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

        body {
            font-family: var(--font-main);
            background-color: var(--bg-deep);
            background-image:
                radial-gradient(circle at 12% 18%, rgba(0, 82, 255, 0.08) 0%, transparent 42%),
                radial-gradient(circle at 88% 72%, rgba(0, 240, 255, 0.06) 0%, transparent 38%),
                radial-gradient(circle at 50% 50%, rgba(13, 17, 30, 0.9) 0%, transparent 70%);
            color: var(--text-white);
            line-height: 1.62;
            font-size: 16px;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            overflow-x: hidden;
        }

        main {
            flex: 1;
            position: relative;
        }

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

        a:hover {
            color: var(--accent-cyan);
            opacity: 0.9;
        }

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

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

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

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

        button:focus-visible {
            outline: 2px solid var(--accent-cyan);
            outline-offset: 4px;
        }

        .container {
            width: 100%;
            max-width: 1200px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        @media (max-width: 991px) {
            .container {
                padding-left: 20px;
                padding-right: 20px;
            }
        }

        @media (max-width: 575px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
        }

        /* HEADER & NAV */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1030;
            background: rgba(8, 9, 15, 0.82);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: var(--border-glass);
            box-shadow: 0 6px 18px rgba(0, 0, 0, 0.35);
        }

        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 76px;
            gap: 20px;
            position: relative;
        }

        .nav-logo {
            display: flex;
            flex-direction: column;
            line-height: 1.2;
            min-width: 240px;
        }

        .nav-logo a {
            font-size: 1.25rem;
            font-weight: 800;
            letter-spacing: -0.01em;
            color: var(--text-white);
            transition: color var(--transition-fast);
            line-height: 1.25;
        }

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

        .logo-sub {
            font-size: 0.78rem;
            font-weight: 500;
            color: var(--accent-cyan);
            letter-spacing: 0.02em;
        }

        .nav-menu-wrapper {
            display: flex;
            align-items: center;
            gap: 18px;
            flex: 1;
            justify-content: flex-end;
        }

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

        .nav-links li {
            display: flex;
            align-items: center;
        }

        .nav-links a {
            display: inline-block;
            padding: 10px 0;
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-silver);
            transition: color var(--transition-fast), box-shadow var(--transition-fast);
            position: relative;
            white-space: nowrap;
        }

        .nav-links a::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 4px;
            width: 0;
            height: 2px;
            background: var(--accent-cyan);
            border-radius: 2px;
            transition: width var(--transition-mid);
        }

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

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

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

        .btn-nav-login,
        .btn-nav-signup {
            padding: 10px 18px;
            border-radius: var(--radius-sm);
            font-weight: 700;
            font-size: 0.9rem;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .btn-nav-login {
            color: var(--text-white);
            background: transparent;
            border: 1px solid rgba(203, 213, 225, 0.3);
        }

        .btn-nav-login:hover {
            border-color: var(--accent-cyan);
            color: var(--accent-cyan);
            box-shadow: 0 0 12px rgba(0, 240, 255, 0.2);
        }

        .btn-nav-signup {
            color: #FFFFFF;
            background: linear-gradient(135deg, var(--accent-blue), #0070FF);
            border: 1px solid var(--accent-blue);
            box-shadow: 0 4px 14px rgba(0, 82, 255, 0.4);
        }

        .btn-nav-signup:hover {
            background: linear-gradient(135deg, #0070FF, var(--accent-cyan));
            border-color: var(--accent-cyan);
            box-shadow: 0 4px 20px rgba(0, 240, 255, 0.45);
            transform: translateY(-1px);
        }

        .nav-toggle {
            display: none;
            width: 44px;
            height: 44px;
            border-radius: var(--radius-sm);
            border: 1px solid rgba(203, 213, 225, 0.3);
            color: var(--text-white);
            font-size: 1.25rem;
            align-items: center;
            justify-content: center;
            transition: all var(--transition-fast);
            flex-shrink: 0;
        }

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

        @media (max-width: 991px) {
            .nav-logo {
                min-width: auto;
                flex: 1;
            }

            .nav-logo a {
                font-size: 1.05rem;
            }

            .nav-menu-wrapper {
                position: relative;
            }

            .nav-links {
                position: absolute;
                top: calc(100% + 12px);
                right: 0;
                left: 0;
                flex-direction: column;
                align-items: stretch;
                gap: 0;
                background: rgba(8, 9, 15, 0.96);
                backdrop-filter: blur(18px);
                border: var(--border-glass);
                border-radius: var(--radius-md);
                box-shadow: var(--shadow-glass);
                padding: 12px 16px;
                display: none;
                z-index: 1040;
            }

            .nav-links.open {
                display: flex;
                animation: fadeSlideDown 0.25s ease;
            }

            .nav-links li {
                width: 100%;
            }

            .nav-links a {
                display: block;
                padding: 12px 8px;
                border-bottom: 1px solid rgba(203, 213, 225, 0.06);
                font-size: 1rem;
            }

            .nav-links li:last-child a {
                border-bottom: none;
            }

            .nav-auth {
                margin-right: 8px;
            }

            .nav-toggle {
                display: inline-flex;
            }
        }

        @media (max-width: 575px) {
            .site-header .container {
                min-height: 68px;
                gap: 12px;
                flex-wrap: wrap;
            }

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

            .logo-sub {
                font-size: 0.7rem;
            }

            .nav-auth {
                gap: 6px;
            }

            .btn-nav-login,
            .btn-nav-signup {
                padding: 8px 12px;
                font-size: 0.82rem;
            }

            .nav-links {
                left: 0;
                right: 0;
                top: calc(100% + 8px);
            }
        }

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

        /* HERO */
        .hero-section {
            position: relative;
            padding: 80px 0 70px;
            background:
                linear-gradient(135deg, rgba(8, 9, 15, 0.92) 0%, rgba(13, 17, 30, 0.78) 100%),
                url('/assets/images/backpic/back-1.jpg') center/cover no-repeat;
            border-bottom: var(--border-glass);
            overflow: hidden;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(circle at 70% 40%, rgba(0, 82, 255, 0.18), transparent 55%);
            pointer-events: none;
        }

        .hero-inner {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 48px;
            align-items: center;
        }

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

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 14px;
            border-radius: 999px;
            background: rgba(0, 240, 255, 0.08);
            border: 1px solid rgba(0, 240, 255, 0.35);
            color: var(--accent-cyan);
            font-size: 0.85rem;
            font-weight: 700;
            letter-spacing: 0.01em;
            margin-bottom: 20px;
        }

        .hero-content h1 {
            font-size: 3.2rem;
            font-weight: 900;
            line-height: 1.15;
            letter-spacing: -0.02em;
            margin-bottom: 22px;
            color: var(--text-white);
        }

        .hero-content h1 .highlight {
            background: linear-gradient(135deg, var(--accent-cyan), #7DF9FF);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .hero-lead {
            font-size: 1.12rem;
            color: var(--text-silver);
            max-width: 600px;
            margin-bottom: 28px;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            margin-bottom: 28px;
        }

        .btn-primary {
            padding: 14px 28px;
            border-radius: var(--radius-md);
            font-weight: 700;
            font-size: 1rem;
            background: linear-gradient(135deg, var(--accent-blue), #0070FF);
            color: #FFFFFF;
            border: 1px solid var(--accent-blue);
            box-shadow: 0 6px 18px rgba(0, 82, 255, 0.45);
            transition: all var(--transition-fast);
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }

        .btn-primary:hover {
            background: linear-gradient(135deg, #0070FF, var(--accent-cyan));
            border-color: var(--accent-cyan);
            box-shadow: 0 6px 24px rgba(0, 240, 255, 0.5);
            transform: translateY(-2px);
        }

        .btn-outline-cyber {
            padding: 14px 28px;
            border-radius: var(--radius-md);
            font-weight: 700;
            font-size: 1rem;
            background: rgba(0, 82, 255, 0.08);
            color: var(--accent-cyan);
            border: 1px solid var(--accent-cyan);
            transition: all var(--transition-fast);
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }

        .btn-outline-cyber:hover {
            background: rgba(0, 240, 255, 0.12);
            box-shadow: 0 0 18px rgba(0, 240, 255, 0.35);
            transform: translateY(-2px);
        }

        .hero-stats {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            margin-top: 8px;
        }

        .stat-pill {
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 10px 16px;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(203, 213, 225, 0.15);
            border-radius: 999px;
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--text-silver);
        }

        .stat-pill i {
            color: var(--accent-cyan);
        }

        .hero-panel {
            background: rgba(13, 17, 30, 0.72);
            backdrop-filter: blur(16px);
            border: var(--border-cyber);
            border-radius: var(--radius-xl);
            box-shadow: var(--shadow-cyber), var(--shadow-glass);
            padding: 28px;
            position: relative;
            overflow: hidden;
        }

        .hero-panel::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -50%;
            width: 80%;
            height: 200%;
            background: linear-gradient(135deg, transparent 35%, rgba(0, 240, 255, 0.12) 50%, transparent 65%);
            transform: rotate(25deg);
            pointer-events: none;
        }

        .panel-title {
            font-size: 1.1rem;
            font-weight: 800;
            margin-bottom: 16px;
            color: var(--text-white);
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .panel-title i {
            color: var(--accent-cyan);
        }

        .group-progress {
            margin-bottom: 18px;
        }

        .group-progress .progress-label {
            display: flex;
            justify-content: space-between;
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--text-silver);
            margin-bottom: 8px;
        }

        .group-progress .progress-label strong {
            color: var(--accent-cyan);
        }

        .progress {
            height: 10px;
            background: rgba(255, 255, 255, 0.06);
            border-radius: 999px;
            overflow: hidden;
        }

        .progress-bar {
            height: 100%;
            background: linear-gradient(90deg, var(--accent-blue), var(--accent-cyan));
            border-radius: 999px;
            width: 72%;
            transition: width var(--transition-mid);
        }

        .group-members {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 20px;
        }

        .member-avatars {
            display: flex;
            gap: 6px;
        }

        .member-avatars span {
            width: 34px;
            height: 34px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(0, 240, 255, 0.12);
            border: 1px solid rgba(0, 240, 255, 0.45);
            color: var(--accent-cyan);
            font-size: 0.8rem;
            font-weight: 700;
        }

        .group-members p {
            font-size: 0.88rem;
            color: var(--text-muted);
            margin: 0;
        }

        .group-members strong {
            color: var(--text-white);
        }

        @media (max-width: 991px) {
            .hero-inner {
                grid-template-columns: 1fr;
                gap: 32px;
            }

            .hero-content h1 {
                font-size: 2.5rem;
            }
        }

        @media (max-width: 575px) {
            .hero-section {
                padding: 50px 0 40px;
            }

            .hero-content h1 {
                font-size: 1.9rem;
            }

            .hero-lead {
                font-size: 1rem;
            }

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

            .btn-primary,
            .btn-outline-cyber {
                justify-content: center;
                padding: 13px 20px;
                font-size: 0.95rem;
            }

            .hero-stats {
                flex-direction: column;
                align-items: flex-start;
            }

            .hero-panel {
                padding: 20px;
                border-radius: var(--radius-lg);
            }
        }

        /* SECTION BASE */
        .section-block {
            padding: 70px 0;
            position: relative;
        }

        .section-block.bg-alt {
            background: rgba(13, 17, 30, 0.45);
            border-top: var(--border-glass);
            border-bottom: var(--border-glass);
        }

        .section-header {
            margin-bottom: 40px;
            display: flex;
            flex-wrap: wrap;
            align-items: flex-end;
            justify-content: space-between;
            gap: 20px;
        }

        .section-title {
            font-size: 2.1rem;
            font-weight: 900;
            letter-spacing: -0.01em;
            margin-bottom: 10px;
            line-height: 1.2;
        }

        .section-sub {
            color: var(--text-silver);
            max-width: 700px;
            margin-bottom: 0;
            font-size: 1rem;
        }

        .section-link {
            color: var(--accent-cyan);
            font-weight: 700;
            white-space: nowrap;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .section-link:hover {
            text-decoration: underline;
        }

        @media (max-width: 575px) {
            .section-title {
                font-size: 1.6rem;
            }

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

        /* GAME RANK CARDS */
        .game-rank-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .rank-card {
            background: var(--bg-card);
            backdrop-filter: blur(12px);
            border: var(--border-cyber);
            border-radius: var(--radius-lg);
            padding: 20px;
            transition: all var(--transition-mid);
            position: relative;
            overflow: hidden;
            display: flex;
            flex-direction: column;
            gap: 14px;
            box-shadow: none;
        }

        .rank-card:hover {
            border-color: var(--accent-cyan);
            background: var(--bg-card-hover);
            box-shadow: var(--shadow-cyber-hover);
            transform: translateY(-4px);
        }

        .rank-number {
            position: absolute;
            top: 12px;
            right: 16px;
            font-size: 3rem;
            font-weight: 900;
            color: rgba(0, 240, 255, 0.12);
            line-height: 1;
            pointer-events: none;
        }

        .rank-card img {
            width: 100%;
            height: 160px;
            object-fit: cover;
            border-radius: var(--radius-md);
            border: 1px solid rgba(203, 213, 225, 0.12);
        }

        .rank-card h3 {
            font-size: 1.2rem;
            font-weight: 800;
            margin: 0;
            color: var(--text-white);
            line-height: 1.3;
        }

        .rank-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            align-items: center;
        }

        .badge-rtp {
            padding: 6px 10px;
            border-radius: 6px;
            background: rgba(0, 240, 255, 0.1);
            border: 1px solid rgba(0, 240, 255, 0.4);
            color: var(--accent-cyan);
            font-size: 0.82rem;
            font-weight: 800;
        }

        .badge-provider {
            padding: 6px 10px;
            border-radius: 6px;
            background: rgba(0, 82, 255, 0.08);
            border: 1px solid rgba(0, 82, 255, 0.35);
            color: var(--text-silver);
            font-size: 0.82rem;
            font-weight: 600;
        }

        .rank-desc {
            font-size: 0.9rem;
            color: var(--text-silver);
            margin: 0;
            flex-grow: 1;
        }

        .rank-card .btn-sm {
            width: 100%;
            padding: 10px 14px;
            border-radius: var(--radius-sm);
            background: rgba(0, 82, 255, 0.2);
            color: var(--accent-cyan);
            font-weight: 700;
            font-size: 0.9rem;
            border: 1px solid rgba(0, 82, 255, 0.45);
            transition: all var(--transition-fast);
            text-align: center;
        }

        .rank-card .btn-sm:hover {
            background: rgba(0, 240, 255, 0.15);
            border-color: var(--accent-cyan);
            box-shadow: 0 0 12px rgba(0, 240, 255, 0.25);
        }

        @media (max-width: 991px) {
            .game-rank-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 18px;
            }
        }

        @media (max-width: 575px) {
            .game-rank-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }

            .rank-card img {
                height: 190px;
            }
        }

        /* FEATURE GRID ASYMMETRIC */
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .feature-item {
            padding: 24px 20px;
            background: rgba(255, 255, 255, 0.02);
            border: var(--border-glass);
            border-radius: var(--radius-md);
            transition: all var(--transition-fast);
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .feature-item:hover {
            border-color: rgba(0, 240, 255, 0.4);
            background: rgba(0, 240, 255, 0.04);
        }

        .feature-icon {
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: rgba(0, 82, 255, 0.12);
            border: 1px solid rgba(0, 82, 255, 0.35);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.25rem;
            color: var(--accent-cyan);
            margin-bottom: 4px;
        }

        .feature-item h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin: 0;
            color: var(--text-white);
        }

        .feature-item p {
            margin: 0;
            color: var(--text-silver);
            font-size: 0.92rem;
        }

        @media (max-width: 991px) {
            .feature-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 575px) {
            .feature-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
        }

        /* RTP TABLE */
        .rtp-table-wrapper {
            overflow-x: auto;
            background: rgba(13, 17, 30, 0.65);
            border: var(--border-glass);
            border-radius: var(--radius-lg);
            padding: 10px;
            box-shadow: var(--shadow-glass);
        }

        .table-rtp {
            width: 100%;
            border-collapse: collapse;
            min-width: 720px;
            color: var(--text-silver);
        }

        .table-rtp th,
        .table-rtp td {
            padding: 16px 18px;
            text-align: left;
            border-bottom: 1px solid rgba(203, 213, 225, 0.08);
            font-size: 0.95rem;
        }

        .table-rtp th {
            font-weight: 700;
            color: var(--text-white);
            background: rgba(0, 82, 255, 0.06);
            white-space: nowrap;
        }

        .table-rtp tbody tr {
            transition: background var(--transition-fast);
        }

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

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

        .rtp-highlight {
            color: var(--accent-cyan);
            font-weight: 800;
        }

        @media (max-width: 575px) {
            .table-rtp th,
            .table-rtp td {
                padding: 12px 14px;
                font-size: 0.85rem;
            }
        }

        /* GROUP BUY SECTION */
        .group-buy-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }

        .group-buy-block .text-content h3 {
            font-size: 1.8rem;
            font-weight: 900;
            margin-bottom: 16px;
        }

        .group-buy-block .text-content p {
            color: var(--text-silver);
            margin-bottom: 20px;
            font-size: 1rem;
        }

        .group-buy-block ul {
            list-style: none;
            padding: 0;
            margin: 0 0 24px;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .group-buy-block ul li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            color: var(--text-silver);
            font-size: 0.95rem;
        }

        .group-buy-block ul li i {
            color: var(--accent-cyan);
            margin-top: 4px;
        }

        .group-panel-box {
            background: rgba(13, 17, 30, 0.72);
            border: var(--border-cyber);
            border-radius: var(--radius-xl);
            padding: 28px;
            box-shadow: var(--shadow-glass);
            display: flex;
            flex-direction: column;
            gap: 18px;
        }

        .group-panel-box h4 {
            font-size: 1.2rem;
            font-weight: 700;
            margin: 0;
        }

        .group-cta {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }

        @media (max-width: 991px) {
            .group-buy-block {
                grid-template-columns: 1fr;
                gap: 28px;
            }
        }

        /* FAQ */
        .faq-list {
            max-width: 850px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .faq-item {
            background: rgba(13, 17, 30, 0.6);
            border: var(--border-glass);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: border-color var(--transition-fast);
        }

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

        .faq-question {
            padding: 18px 22px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            font-weight: 700;
            color: var(--text-white);
            cursor: pointer;
            transition: background var(--transition-fast);
            font-size: 1rem;
        }

        .faq-question:hover {
            background: rgba(0, 82, 255, 0.04);
        }

        .faq-question i {
            color: var(--accent-cyan);
            transition: transform var(--transition-mid);
            flex-shrink: 0;
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-mid);
            padding: 0 22px;
            color: var(--text-silver);
        }

        .faq-item.open .faq-answer {
            max-height: 360px;
            padding: 0 22px 18px;
        }

        /* CTA FINAL */
        .final-cta {
            padding: 80px 0;
            background:
                linear-gradient(135deg, rgba(8, 9, 15, 0.92) 0%, rgba(13, 17, 30, 0.8) 100%),
                url('/assets/images/backpic/back-2.jpg') center/cover no-repeat;
            border-top: var(--border-glass);
            text-align: center;
        }

        .final-cta h2 {
            font-size: 2.4rem;
            font-weight: 900;
            margin-bottom: 16px;
        }

        .final-cta p {
            font-size: 1.1rem;
            color: var(--text-silver);
            max-width: 650px;
            margin: 0 auto 28px;
        }

        .final-cta .cta-actions {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 14px;
        }

        @media (max-width: 575px) {
            .final-cta {
                padding: 50px 0;
            }

            .final-cta h2 {
                font-size: 1.7rem;
            }

            .final-cta p {
                font-size: 1rem;
            }

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

        /* FOOTER */
        .site-footer {
            background: rgba(6, 7, 12, 0.95);
            border-top: var(--border-glass);
            padding: 50px 0 20px;
            margin-top: 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.8fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 36px;
        }

        .footer-col h3 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 16px;
            color: var(--text-white);
        }

        .footer-col p {
            font-size: 0.92rem;
            color: var(--text-silver);
            line-height: 1.6;
            margin: 0 0 10px;
        }

        .footer-col a {
            display: block;
            color: var(--text-silver);
            font-size: 0.92rem;
            margin-bottom: 8px;
            transition: color var(--transition-fast);
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(203, 213, 225, 0.1);
            padding-top: 20px;
            text-align: center;
            font-size: 0.85rem;
            color: var(--text-muted);
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: center;
            gap: 16px;
        }

        .footer-badges {
            display: inline-flex;
            flex-wrap: wrap;
            gap: 10px;
            justify-content: center;
        }

        .footer-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 7px 12px;
            border-radius: 999px;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(203, 213, 225, 0.2);
            color: var(--text-silver);
            font-weight: 700;
            font-size: 0.78rem;
        }

        .footer-badge i {
            color: var(--accent-cyan);
        }

        @media (max-width: 991px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
        }

        @media (max-width: 575px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }

            .footer-bottom {
                flex-direction: column;
                gap: 12px;
            }
        }

        /* FAB */
        .fab-left {
            position: fixed;
            left: 16px;
            bottom: 24px;
            z-index: 50;
            width: 56px;
            height: 56px;
            border-radius: 999px;
            background: rgba(8, 9, 15, 0.78);
            backdrop-filter: blur(12px);
            border: 2px solid transparent;
            background-image: linear-gradient(rgba(8, 9, 15, 0.78), rgba(8, 9, 15, 0.78)), linear-gradient(135deg, var(--accent-blue), var(--accent-cyan));
            background-origin: border-box;
            background-clip: padding-box, border-box;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-cyan);
            font-size: 1.4rem;
            box-shadow: 0 0 18px rgba(0, 240, 255, 0.45);
            transition: all var(--transition-fast);
            cursor: pointer;
            opacity: 0.65;
            animation: fabBreathing 3s ease-in-out infinite;
        }

        .fab-left:hover {
            opacity: 1;
            transform: scale(1.08);
            box-shadow: 0 0 28px rgba(0, 240, 255, 0.7);
        }

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

        .fab-notify {
            position: absolute;
            top: 2px;
            right: 2px;
            width: 12px;
            height: 12px;
            background: #FF004C;
            border-radius: 50%;
            border: 2px solid var(--bg-deep);
            animation: blinker 1.2s ease-in-out infinite;
        }

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

        @keyframes blinker {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.2; }
        }

        @media (max-width: 575px) {
            .fab-left {
                width: 48px;
                height: 48px;
                left: 12px;
                bottom: 16px;
                font-size: 1.2rem;
            }
        }

/* roulang page: category2 */
/* ============================================
           Design Variables & Theme System
           ============================================ */
        :root {
            --color-bg-primary: #08090F;
            --color-bg-secondary: #0D111E;
            --color-bg-card: rgba(13, 17, 30, 0.72);
            --color-bg-card-solid: #0D111E;
            --color-accent-blue: #0052FF;
            --color-accent-cyan: #00F0FF;
            --color-accent-green: #CCFF00;
            --color-text-primary: #FFFFFF;
            --color-text-secondary: #CBD5E1;
            --color-text-muted: #94A3B8;
            --color-border-subtle: rgba(0, 240, 255, 0.12);
            --color-border-hover: rgba(0, 240, 255, 0.45);
            --color-overlay-dark: rgba(5, 8, 14, 0.76);
            --color-danger: #FF4D6A;
            --color-success: #2EDB8E;
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-glow-sm: 0 0 8px rgba(0, 240, 255, 0.25);
            --shadow-glow-md: 0 0 15px rgba(0, 240, 255, 0.35), 0 0 30px rgba(0, 82, 255, 0.25);
            --shadow-glow-lg: 0 0 25px rgba(0, 240, 255, 0.45), 0 0 50px rgba(0, 82, 255, 0.35);
            --shadow-card: 0 6px 24px rgba(0, 0, 0, 0.45);
            --spacing-xs: 8px;
            --spacing-sm: 16px;
            --spacing-md: 24px;
            --spacing-lg: 40px;
            --spacing-xl: 64px;
            --font-primary: 'Segoe UI', 'Roboto', 'Helvetica Neue', 'Arial', sans-serif;
            --font-heading: 'Segoe UI', 'Roboto', 'Helvetica Neue', 'Arial', sans-serif;
        }

        /* ============================================
           Base Reset & Body
           ============================================ */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

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

        body {
            font-family: var(--font-primary);
            font-size: 16px;
            line-height: 1.6;
            color: var(--color-text-primary);
            background-color: var(--color-bg-primary);
            background-image:
                radial-gradient(ellipse at 20% 10%, rgba(0, 82, 255, 0.12) 0%, transparent 55%),
                radial-gradient(ellipse at 85% 30%, rgba(0, 240, 255, 0.07) 0%, transparent 50%),
                radial-gradient(ellipse at 50% 80%, rgba(8, 9, 15, 0) 0%, transparent 60%);
            min-height: 100vh;
            overflow-x: hidden;
        }

        /* Subtle digital grid overlay */
        body::before {
            content: '';
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            pointer-events: none;
            background-image:
                linear-gradient(rgba(0, 240, 255, 0.025) 1px, transparent 1px),
                linear-gradient(90deg, rgba(0, 240, 255, 0.025) 1px, transparent 1px);
            background-size: 48px 48px;
            z-index: 0;
        }

        h1, h2, h3, h4, h5, h6 {
            font-family: var(--font-heading);
            font-weight: 700;
            line-height: 1.3;
            color: var(--color-text-primary);
            margin-bottom: 0.5em;
        }

        p {
            margin-bottom: 1rem;
            color: var(--color-text-secondary);
            line-height: 1.6;
        }

        a {
            text-decoration: none;
            color: var(--color-accent-cyan);
            transition: color 0.2s ease;
        }

        a:hover,
        a:focus {
            color: #7DEBFF;
            text-decoration: none;
        }

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

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

        .container {
            position: relative;
            z-index: 1;
            max-width: 1140px;
            padding-left: 20px;
            padding-right: 20px;
        }

        /* ============================================
           Header / Navigation
           ============================================ */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: rgba(8, 9, 15, 0.88);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--color-border-subtle);
            padding: 12px 0;
            transition: background 0.3s ease, box-shadow 0.3s ease;
        }

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

        .nav-logo {
            display: flex;
            flex-direction: column;
            min-width: 0;
        }

        .nav-logo a {
            font-size: 1.25rem;
            font-weight: 800;
            letter-spacing: 0.01em;
            color: var(--color-text-primary);
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
            max-width: 280px;
        }

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

        .logo-sub {
            font-size: 0.75rem;
            font-weight: 500;
            letter-spacing: 0.04em;
            text-transform: uppercase;
            color: var(--color-text-muted);
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
            max-width: 280px;
        }

        .nav-menu-wrapper {
            display: flex;
            align-items: center;
            gap: var(--spacing-md);
            flex: 1;
            justify-content: flex-end;
        }

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

        .nav-links li a {
            display: inline-block;
            padding: 8px 16px;
            border-radius: var(--radius-sm);
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--color-text-secondary);
            transition: all 0.2s ease;
            white-space: nowrap;
        }

        .nav-links li a:hover {
            color: var(--color-text-primary);
            background: rgba(0, 240, 255, 0.08);
        }

        .nav-links li a.active {
            color: var(--color-accent-cyan);
            background: rgba(0, 240, 255, 0.12);
            border: 1px solid rgba(0, 240, 255, 0.25);
            box-shadow: 0 0 8px rgba(0, 240, 255, 0.15);
        }

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

        .btn-nav-login {
            background: transparent;
            border: none;
            color: var(--color-text-secondary);
            font-size: 0.9rem;
            font-weight: 600;
            padding: 8px 14px;
            border-radius: var(--radius-sm);
            cursor: pointer;
            transition: all 0.2s ease;
            white-space: nowrap;
        }

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

        .btn-nav-signup {
            background: linear-gradient(135deg, var(--color-accent-blue), var(--color-accent-cyan));
            border: none;
            color: #fff;
            font-size: 0.9rem;
            font-weight: 700;
            padding: 8px 20px;
            border-radius: var(--radius-sm);
            cursor: pointer;
            box-shadow: var(--shadow-glow-sm);
            transition: all 0.25s ease;
            white-space: nowrap;
        }

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

        .nav-toggle {
            display: none;
            background: rgba(0, 240, 255, 0.1);
            border: 1px solid rgba(0, 240, 255, 0.25);
            color: var(--color-accent-cyan);
            font-size: 1.25rem;
            width: 42px;
            height: 42px;
            border-radius: var(--radius-sm);
            cursor: pointer;
            align-items: center;
            justify-content: center;
            transition: all 0.25s ease;
        }

        .nav-toggle:hover {
            background: rgba(0, 240, 255, 0.18);
            box-shadow: var(--shadow-glow-sm);
        }

        /* ============================================
           Hero Section (Bento Layout)
           ============================================ */
        .hero-bento {
            padding-top: 120px;
            padding-bottom: 56px;
            position: relative;
            overflow: hidden;
        }

        .hero-bento-bg {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-image: url('/assets/images/backpic/back-2.jpg');
            background-size: cover;
            background-position: center;
            opacity: 0.32;
            z-index: 0;
        }

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

        .bento-grid {
            display: grid;
            grid-template-columns: 1.7fr 1fr;
            gap: var(--spacing-md);
            margin-bottom: var(--spacing-md);
        }

        .bento-main {
            grid-column: 1 / 2;
            grid-row: 1 / 3;
            background: var(--color-bg-card);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border: 1px solid var(--color-border-subtle);
            border-radius: var(--radius-xl);
            padding: clamp(28px, 4vw, 48px);
            box-shadow: var(--shadow-card);
            position: relative;
            overflow: hidden;
            display: flex;
            flex-direction: column;
            justify-content: center;
            min-height: 380px;
        }

        .bento-main::after {
            content: '';
            position: absolute;
            top: -40%;
            right: -20%;
            width: 280px;
            height: 280px;
            background: radial-gradient(circle, rgba(0, 240, 255, 0.12) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .bento-main .btn-group {
            display: flex;
            gap: var(--spacing-xs);
            flex-wrap: wrap;
            margin-top: var(--spacing-sm);
        }

        .bento-sub {
            grid-column: 2 / 3;
            background: var(--color-bg-card);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            border: 1px solid var(--color-border-subtle);
            border-radius: var(--radius-lg);
            padding: var(--spacing-md);
            box-shadow: var(--shadow-card);
            transition: all 0.25s ease;
            display: flex;
            align-items: center;
            gap: var(--spacing-sm);
        }

        .bento-sub:hover {
            border-color: var(--color-border-hover);
            box-shadow: var(--shadow-glow-sm), var(--shadow-card);
            transform: translateY(-2px);
        }

        .bento-icon {
            flex-shrink: 0;
            width: 48px;
            height: 48px;
            border-radius: var(--radius-md);
            background: rgba(0, 240, 255, 0.1);
            border: 1px solid rgba(0, 240, 255, 0.2);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-accent-cyan);
            font-size: 1.5rem;
        }

        .bento-cta-strip {
            grid-column: 1 / -1;
            background: rgba(13, 17, 30, 0.85);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            border: 1px solid rgba(0, 240, 255, 0.2);
            border-radius: var(--radius-lg);
            padding: var(--spacing-sm) var(--spacing-md);
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: var(--spacing-xs);
            box-shadow: var(--shadow-card);
        }

        .bento-cta-strip p {
            margin: 0;
            font-weight: 600;
            color: var(--color-text-primary);
        }

        /* ============================================
           Typography Helpers
           ============================================ */
        .section-eyebrow {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 700;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--color-accent-cyan);
            margin-bottom: var(--spacing-xs);
        }

        .section-title {
            font-size: clamp(1.6rem, 3.5vw, 2.4rem);
            font-weight: 800;
            letter-spacing: -0.01em;
            margin-bottom: var(--spacing-sm);
        }

        .section-lead {
            font-size: 1.05rem;
            color: var(--color-text-secondary);
            max-width: 720px;
        }

        /* ============================================
           Buttons
           ============================================ */
        .btn-glow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: linear-gradient(135deg, var(--color-accent-blue) 0%, var(--color-accent-cyan) 100%);
            border: none;
            color: #fff;
            font-weight: 700;
            font-size: 0.95rem;
            padding: 12px 28px;
            border-radius: var(--radius-sm);
            cursor: pointer;
            box-shadow: var(--shadow-glow-md);
            transition: all 0.3s ease;
            position: relative;
            overflow: hidden;
        }

        .btn-glow::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(255,255,255,0.15) 0%, transparent 60%);
            pointer-events: none;
        }

        .btn-glow:hover {
            box-shadow: var(--shadow-glow-lg);
            transform: translateY(-2px);
            color: #fff;
        }

        .btn-glow:active {
            transform: translateY(0);
            box-shadow: var(--shadow-glow-sm);
        }

        .btn-outline-cyan {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            border: 1px solid rgba(0, 240, 255, 0.45);
            color: var(--color-accent-cyan);
            font-weight: 700;
            font-size: 0.95rem;
            padding: 12px 28px;
            border-radius: var(--radius-sm);
            cursor: pointer;
            transition: all 0.3s ease;
        }

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

        /* ============================================
           Card Styles (Glass Morphism)
           ============================================ */
        .glass-card {
            background: var(--color-bg-card);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid var(--color-border-subtle);
            border-radius: var(--radius-lg);
            padding: var(--spacing-md);
            box-shadow: var(--shadow-card);
            transition: all 0.3s ease;
        }

        .glass-card:hover {
            border-color: var(--color-border-hover);
            box-shadow: var(--shadow-glow-sm), var(--shadow-card);
            transform: translateY(-3px);
        }

        .glass-card .card-icon {
            width: 56px;
            height: 56px;
            border-radius: var(--radius-md);
            background: rgba(0, 240, 255, 0.1);
            border: 1px solid rgba(0, 240, 255, 0.2);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-accent-cyan);
            font-size: 1.6rem;
            margin-bottom: var(--spacing-sm);
            flex-shrink: 0;
        }

        .glass-card h3,
        .glass-card h4 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 0.5rem;
        }

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

        .glass-card ul li {
            padding-left: 1.4rem;
            position: relative;
            margin-bottom: 0.5rem;
            font-size: 0.93rem;
            color: var(--color-text-secondary);
        }

        .glass-card ul li::before {
            content: '\f058';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            position: absolute;
            left: 0;
            top: 2px;
            font-size: 0.85rem;
            color: var(--color-accent-cyan);
        }

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

        .section-spacing-sm {
            padding: var(--spacing-lg) 0;
        }

        .divider-glow {
            width: 60px;
            height: 3px;
            background: linear-gradient(90deg, var(--color-accent-blue), var(--color-accent-cyan));
            border-radius: 2px;
            margin: 0 0 var(--spacing-sm) 0;
        }

        .divider-center {
            margin-left: auto;
            margin-right: auto;
        }

        /* ============================================
           List / Step Components
           ============================================ */
        .step-number {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: rgba(0, 240, 255, 0.15);
            border: 1px solid var(--color-accent-cyan);
            color: var(--color-accent-cyan);
            font-weight: 700;
            font-size: 0.95rem;
            flex-shrink: 0;
        }

        .badge-cyan {
            display: inline-block;
            background: rgba(0, 240, 255, 0.12);
            color: var(--color-accent-cyan);
            font-size: 0.78rem;
            font-weight: 700;
            padding: 4px 12px;
            border-radius: 50px;
            border: 1px solid rgba(0, 240, 255, 0.25);
            letter-spacing: 0.04em;
        }

        .badge-warning {
            display: inline-block;
            background: rgba(255, 215, 0, 0.15);
            color: #FFD700;
            font-size: 0.78rem;
            font-weight: 700;
            padding: 4px 12px;
            border-radius: 50px;
            border: 1px solid rgba(255, 215, 0, 0.35);
            letter-spacing: 0.04em;
        }

        /* ============================================
           FAQ Section
           ============================================ */
        .faq-item {
            background: var(--color-bg-card);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            border: 1px solid var(--color-border-subtle);
            border-radius: var(--radius-lg);
            margin-bottom: var(--spacing-sm);
            transition: all 0.25s ease;
            overflow: hidden;
        }

        .faq-item:hover {
            border-color: var(--color-border-hover);
            box-shadow: var(--shadow-glow-sm);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: var(--spacing-sm);
            padding: var(--spacing-md);
            cursor: pointer;
            font-weight: 700;
            font-size: 1rem;
            color: var(--color-text-primary);
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            transition: color 0.2s ease;
        }

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

        .faq-question i {
            color: var(--color-accent-cyan);
            font-size: 1.1rem;
            transition: transform 0.3s ease;
            flex-shrink: 0;
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            padding: 0 var(--spacing-md);
            transition: max-height 0.35s ease, padding 0.35s ease;
        }

        .faq-item.open .faq-answer {
            max-height: 260px;
            padding: 0 var(--spacing-md) var(--spacing-md);
        }

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

        /* ============================================
           CTA Section
           ============================================ */
        .cta-section {
            background: rgba(13, 17, 30, 0.9);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            border: 1px solid rgba(0, 240, 255, 0.2);
            border-radius: var(--radius-xl);
            padding: var(--spacing-lg);
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -60%;
            left: -20%;
            width: 360px;
            height: 360px;
            background: radial-gradient(circle, rgba(0, 240, 255, 0.15) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -50%;
            right: -15%;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(0, 82, 255, 0.18) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-section h2 {
            position: relative;
            z-index: 1;
            font-size: clamp(1.4rem, 3vw, 2rem);
            margin-bottom: var(--spacing-xs);
        }

        .cta-section p {
            position: relative;
            z-index: 1;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
            margin-bottom: var(--spacing-md);
        }

        .cta-section .btn-glow {
            position: relative;
            z-index: 1;
        }

        /* ============================================
           Footer (Shared)
           ============================================ */
        .site-footer {
            background: rgba(8, 9, 15, 0.95);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-top: 1px solid var(--color-border-subtle);
            padding: var(--spacing-xl) 0 var(--spacing-md);
            margin-top: var(--spacing-xl);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: var(--spacing-lg);
            margin-bottom: var(--spacing-lg);
        }

        .footer-col h3 {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--color-accent-cyan);
            margin-bottom: var(--spacing-sm);
            text-transform: uppercase;
            letter-spacing: 0.05em;
        }

        .footer-col p,
        .footer-col a {
            display: block;
            font-size: 0.88rem;
            color: var(--color-text-secondary);
            margin-bottom: 0.5rem;
            line-height: 1.6;
        }

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

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: var(--spacing-sm);
            padding-top: var(--spacing-md);
            border-top: 1px solid rgba(0, 240, 255, 0.1);
        }

        .footer-bottom p {
            font-size: 0.82rem;
            color: var(--color-text-muted);
            margin: 0;
        }

        .footer-badges {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }

        .footer-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.78rem;
            font-weight: 600;
            padding: 6px 14px;
            border-radius: 50px;
            background: rgba(0, 240, 255, 0.08);
            border: 1px solid rgba(0, 240, 255, 0.2);
            color: var(--color-text-secondary);
            transition: all 0.2s ease;
        }

        .footer-badge:hover {
            border-color: var(--color-accent-cyan);
            color: var(--color-accent-cyan);
            box-shadow: var(--shadow-glow-sm);
        }

        /* ============================================
           FAB (Left Floating Action Button)
           Cyber & Neon Style (Option 2)
           ============================================ */
        .fab-neon {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: 950;
            display: flex;
            align-items: center;
            gap: 10px;
            background: rgba(0, 0, 0, 0.62);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1.5px solid transparent;
            background-clip: padding-box;
            border-radius: 50px;
            padding: 10px 16px;
            cursor: pointer;
            transition: all 0.3s ease;
            opacity: 0.75;
            box-shadow: 0 0 15px rgba(0, 240, 255, 0.35), 0 0 30px rgba(0, 82, 255, 0.2);
            position: relative;
            overflow: hidden;
            min-height: 52px;
        }

        .fab-neon::before {
            content: '';
            position: absolute;
            inset: -2px;
            border-radius: 50px;
            padding: 1.5px;
            background: linear-gradient(135deg, var(--color-accent-cyan), var(--color-accent-blue), var(--color-accent-green));
            -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
            -webkit-mask-composite: xor;
            mask-composite: exclude;
            pointer-events: none;
            z-index: 1;
        }

        .fab-neon:hover {
            opacity: 1;
            box-shadow: 0 0 25px rgba(0, 240, 255, 0.55), 0 0 50px rgba(0, 82, 255, 0.4);
            transform: scale(1.05);
        }

        .fab-neon:active {
            transform: scale(0.95);
            box-shadow: 0 0 8px rgba(0, 240, 255, 0.3);
        }

        .fab-neon .fab-icon {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: rgba(0, 240, 255, 0.15);
            border: 1px solid rgba(0, 240, 255, 0.35);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-accent-cyan);
            font-size: 1.1rem;
            flex-shrink: 0;
            position: relative;
            z-index: 2;
            animation: fab-breathe 2.4s ease-in-out infinite;
        }

        .fab-neon .fab-text {
            font-size: 0.85rem;
            font-weight: 700;
            color: var(--color-text-primary);
            position: relative;
            z-index: 2;
            white-space: nowrap;
        }

        .fab-neon .fab-dot {
            position: absolute;
            top: -4px;
            right: 8px;
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background: var(--color-danger);
            border: 2px solid #08090F;
            z-index: 3;
            animation: fab-dot-blink 1.8s ease-in-out infinite;
        }

        @keyframes fab-breathe {
            0%, 100% { transform: scale(1); }
            50% { transform: scale(1.08); }
        }

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

        /* ============================================
           Responsive Breakpoints
           ============================================ */
        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1.5fr 1fr 1fr;
                gap: var(--spacing-md);
            }
            .footer-col:last-child {
                grid-column: 1 / -1;
            }
            .bento-grid {
                grid-template-columns: 1.5fr 1fr;
            }
        }

        @media (max-width: 768px) {
            .site-header .container {
                flex-wrap: nowrap;
            }
            .nav-menu-wrapper {
                position: fixed;
                top: 68px;
                right: 0;
                width: 100%;
                max-width: 360px;
                height: calc(100vh - 68px);
                background: rgba(8, 9, 15, 0.97);
                backdrop-filter: blur(20px);
                -webkit-backdrop-filter: blur(20px);
                flex-direction: column;
                align-items: flex-start;
                padding: var(--spacing-lg) var(--spacing-md);
                gap: var(--spacing-md);
                transform: translateX(100%);
                transition: transform 0.3s ease;
                overflow-y: auto;
                border-left: 1px solid var(--color-border-subtle);
                z-index: 999;
            }
            .nav-menu-wrapper.open {
                transform: translateX(0);
            }
            .nav-links {
                flex-direction: column;
                width: 100%;
                gap: var(--spacing-xs);
            }
            .nav-links li a {
                display: block;
                width: 100%;
                padding: 12px 16px;
                font-size: 1rem;
            }
            .nav-auth {
                width: 100%;
                flex-direction: column;
                gap: var(--spacing-xs);
            }
            .btn-nav-login,
            .btn-nav-signup {
                width: 100%;
                text-align: center;
                justify-content: center;
            }
            .nav-toggle {
                display: flex;
            }
            .hero-bento {
                padding-top: 100px;
                padding-bottom: 40px;
            }
            .bento-grid {
                grid-template-columns: 1fr;
                gap: var(--spacing-sm);
            }
            .bento-main {
                grid-column: 1 / -1;
                grid-row: auto;
                min-height: 280px;
            }
            .bento-sub {
                grid-column: 1 / -1;
            }
            .bento-cta-strip {
                grid-column: 1 / -1;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: var(--spacing-md);
            }
            .footer-col:last-child {
                grid-column: 1 / -1;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding-left: 14px;
                padding-right: 14px;
            }
            .nav-logo a {
                font-size: 1rem;
                max-width: 180px;
            }
            .logo-sub {
                font-size: 0.68rem;
                max-width: 180px;
            }
            .bento-main {
                padding: var(--spacing-md);
                min-height: 240px;
            }
            .bento-main .btn-group {
                flex-direction: column;
                width: 100%;
            }
            .bento-main .btn-group .btn-glow,
            .bento-main .btn-group .btn-outline-cyan {
                width: 100%;
                justify-content: center;
            }
            .bento-cta-strip {
                flex-direction: column;
                text-align: center;
                align-items: center;
                padding: var(--spacing-sm);
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: var(--spacing-md);
            }
            .footer-col:last-child {
                grid-column: auto;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                align-items: center;
            }
            .fab-neon {
                left: 8px;
                bottom: 80px;
                padding: 8px 12px;
                min-height: 46px;
            }
            .fab-neon .fab-text {
                font-size: 0.75rem;
            }
            .fab-neon .fab-icon {
                width: 30px;
                height: 30px;
                font-size: 0.95rem;
            }
        }