/* roulang page: index */
/* ============ DESIGN TOKENS ============ */
        :root {
            --bg-primary: #030712;
            --bg-secondary: #081229;
            --bg-tertiary: #0B1A3A;
            --bg-glass: rgba(11, 26, 58, 0.72);
            --bg-glass-light: rgba(27, 52, 96, 0.45);
            --accent-blue: #2563EB;
            --accent-cyan: #38BDF8;
            --accent-holo: #60A5FA;
            --accent-glow-blue: rgba(37, 99, 235, 0.5);
            --accent-glow-cyan: rgba(56, 189, 248, 0.5);
            --text-primary: #F8FAFC;
            --text-secondary: #94A3B8;
            --text-muted: #64748B;
            --text-accent: #60A5FA;
            --border-glass: rgba(56, 189, 248, 0.18);
            --border-strong: rgba(56, 189, 248, 0.35);
            --border-subtle: rgba(148, 163, 184, 0.12);
            --success: #10B981;
            --warning: #F59E0B;
            --danger: #EF4444;
            --radius-xs: 4px;
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 22px;
            --radius-xl: 30px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.25);
            --shadow-md: 0 8px 28px rgba(0, 0, 0, 0.38);
            --shadow-lg: 0 18px 50px rgba(0, 0, 0, 0.5);
            --shadow-glow-blue: 0 0 20px rgba(37, 99, 235, 0.45);
            --shadow-glow-cyan: 0 0 20px rgba(56, 189, 248, 0.45);
            --shadow-glow-deep: 0 0 45px rgba(37, 99, 235, 0.28);
            --font-sans: 'Segoe UI', 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Be Vietnam Pro', 'Roboto', sans-serif;
            --transition-fast: 0.18s ease;
            --transition-med: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
            --nav-height: 72px;
        }

        /* ============ BASE RESET & DEFAULT ============ */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
            scroll-padding-top: calc(var(--nav-height) + 16px);
        }

        body {
            font-family: var(--font-sans);
            background-color: var(--bg-primary);
            background-image:
                radial-gradient(ellipse at 15% 10%, rgba(37, 99, 235, 0.08) 0%, transparent 55%),
                radial-gradient(ellipse at 85% 35%, rgba(56, 189, 248, 0.05) 0%, transparent 50%),
                radial-gradient(ellipse at 50% 80%, rgba(11, 26, 58, 0.4) 0%, transparent 60%),
                linear-gradient(180deg, #030712 0%, #030D22 28%, #030712 72%, #050A18 100%);
            color: var(--text-primary);
            line-height: 1.6;
            min-height: 100vh;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body::before {
            content: '';
            position: fixed;
            inset: 0;
            background-image:
                linear-gradient(rgba(56, 189, 248, 0.02) 1px, transparent 1px),
                linear-gradient(90deg, rgba(56, 189, 248, 0.02) 1px, transparent 1px);
            background-size: 48px 48px;
            pointer-events: none;
            z-index: 0;
        }

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

        a:hover,
        a:focus-visible {
            color: var(--text-primary);
            text-decoration: none;
        }

        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--accent-cyan);
            outline-offset: 3px;
            border-radius: var(--radius-xs);
        }

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

        h1, h2, h3, h4, h5, h6 {
            color: var(--text-primary);
            font-weight: 700;
            line-height: 1.3;
            letter-spacing: -0.01em;
            margin-top: 0;
        }

        h1 {
            font-size: clamp(1.85rem, 5.2vw, 3.2rem);
            font-weight: 800;
            text-wrap: balance;
        }

        h2 {
            font-size: clamp(1.4rem, 3.8vw, 2.2rem);
            font-weight: 700;
        }

        h3 {
            font-size: clamp(1.05rem, 2.4vw, 1.4rem);
            font-weight: 650;
        }

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

        .section-subtitle {
            color: var(--text-secondary);
            font-size: 1.02rem;
            line-height: 1.6;
            max-width: 720px;
        }

        /* ============ UTILITY ============ */
        .text-gradient {
            background: linear-gradient(135deg, #60A5FA 0%, #38BDF8 45%, #22D3EE 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .text-glow {
            text-shadow: 0 0 22px rgba(56, 189, 248, 0.45);
        }

        .badge-soft {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 14px;
            border-radius: 50px;
            font-size: 0.8rem;
            font-weight: 500;
            letter-spacing: 0.02em;
            color: var(--text-accent);
            background: rgba(56, 189, 248, 0.1);
            border: 1px solid rgba(56, 189, 248, 0.25);
            backdrop-filter: blur(6px);
            -webkit-backdrop-filter: blur(6px);
        }

        .badge-hot {
            background: rgba(239, 68, 68, 0.15);
            color: #FCA5A5;
            border-color: rgba(239, 68, 68, 0.35);
        }

        .badge-vip {
            background: rgba(245, 158, 11, 0.15);
            color: #FCD34D;
            border-color: rgba(245, 158, 11, 0.4);
        }

        .badge-new {
            background: rgba(16, 185, 129, 0.15);
            color: #6EE7B7;
            border-color: rgba(16, 185, 129, 0.35);
        }

        /* ============ CONTAINER ============ */
        .container-fluid {
            max-width: 1260px;
            padding-left: 1.2rem;
            padding-right: 1.2rem;
        }

        .container {
            max-width: 1200px;
        }

        /* ============ GLASSMORPHISM BASE ============ */
        .glass-card {
            background: var(--bg-glass);
            backdrop-filter: blur(16px) saturate(140%);
            -webkit-backdrop-filter: blur(16px) saturate(140%);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-md);
            transition: border-color var(--transition-med), box-shadow var(--transition-med), transform var(--transition-med);
        }

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

        .glass-panel {
            background: var(--bg-glass);
            backdrop-filter: blur(14px) saturate(135%);
            -webkit-backdrop-filter: blur(14px) saturate(135%);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-lg);
        }

        /* ============ HEADER / NAV ============ */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1040;
            background: rgba(3, 7, 18, 0.86);
            backdrop-filter: blur(18px) saturate(160%);
            -webkit-backdrop-filter: blur(18px) saturate(160%);
            border-bottom: 1px solid var(--border-glass);
            min-height: var(--nav-height);
            display: flex;
            align-items: center;
            transition: background var(--transition-med), border-color var(--transition-med);
        }

        .site-header.scrolled {
            background: rgba(3, 7, 18, 0.95);
            border-bottom-color: var(--border-strong);
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.45);
        }

        .nav-logo-link {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 1.05rem;
            color: var(--text-primary);
            text-decoration: none;
            letter-spacing: -0.01em;
            white-space: nowrap;
        }

        .nav-logo-link:hover {
            color: var(--text-primary);
        }

        .nav-logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--accent-blue), var(--accent-cyan));
            color: #fff;
            font-size: 1.1rem;
            box-shadow: 0 0 14px rgba(37, 99, 235, 0.5);
            flex-shrink: 0;
        }

        .nav-logo-text {
            font-size: 0.96rem;
            font-weight: 700;
            line-height: 1.2;
        }

        .nav-logo-text small {
            display: block;
            font-size: 0.7rem;
            font-weight: 500;
            color: var(--text-muted);
            letter-spacing: 0.04em;
        }

        .navbar-nav-custom .nav-link {
            color: var(--text-secondary);
            font-size: 0.9rem;
            font-weight: 500;
            padding: 0.5rem 0.95rem !important;
            border-radius: 8px;
            transition: color var(--transition-fast), background var(--transition-fast);
            white-space: nowrap;
            position: relative;
        }

        .navbar-nav-custom .nav-link:hover,
        .navbar-nav-custom .nav-link:focus {
            color: var(--text-primary);
            background: rgba(56, 189, 248, 0.08);
        }

        .navbar-nav-custom .nav-link.active {
            color: var(--accent-cyan);
            background: rgba(56, 189, 248, 0.12);
        }

        .btn-nav-login {
            background: transparent;
            border: 1px solid var(--border-strong);
            color: var(--text-primary);
            font-weight: 500;
            font-size: 0.88rem;
            padding: 0.5rem 1.2rem;
            border-radius: 10px;
            transition: all var(--transition-med);
            white-space: nowrap;
        }

        .btn-nav-login:hover {
            background: rgba(56, 189, 248, 0.12);
            border-color: var(--accent-cyan);
            color: var(--text-primary);
            box-shadow: 0 0 16px rgba(37, 99, 235, 0.3);
        }

        .btn-nav-primary {
            background: linear-gradient(135deg, #2563EB 0%, #38BDF8 100%);
            border: none;
            color: #fff;
            font-weight: 600;
            font-size: 0.88rem;
            padding: 0.5rem 1.3rem;
            border-radius: 10px;
            box-shadow: 0 3px 14px rgba(37, 99, 235, 0.5);
            transition: all var(--transition-med);
            white-space: nowrap;
        }

        .btn-nav-primary:hover {
            background: linear-gradient(135deg, #1D4ED8 0%, #0EA5E9 100%);
            color: #fff;
            box-shadow: 0 0 25px rgba(37, 99, 235, 0.7);
            transform: translateY(-1px);
        }

        .navbar-toggler {
            border: 1px solid var(--border-glass);
            border-radius: 10px;
            padding: 0.4rem 0.6rem;
        }

        .navbar-toggler:focus {
            box-shadow: 0 0 0 3px rgba(56, 189, 248, 0.3);
            outline: none;
        }

        .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='%2338BDF8' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }

        .navbar-nav-custom {
            gap: 2px;
        }

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

        @media (max-width: 1199.98px) {
            .navbar-nav-custom .nav-link {
                padding: 0.5rem 0.7rem !important;
                font-size: 0.85rem;
            }
            .nav-logo-text {
                font-size: 0.88rem;
            }
        }

        @media (max-width: 991.98px) {
            .navbar-collapse {
                background: rgba(3, 7, 18, 0.97);
                border: 1px solid var(--border-glass);
                border-radius: 0 0 var(--radius-md) var(--radius-md);
                padding: 1rem;
                margin-top: 0.6rem;
            }
            .nav-actions {
                margin-left: 0;
                margin-top: 0.8rem;
                gap: 8px;
            }
            .btn-nav-login,
            .btn-nav-primary {
                font-size: 0.85rem;
                padding: 0.45rem 1.1rem;
            }
        }

        /* ============ HERO SECTION ============ */
        .hero-section {
            position: relative;
            padding-top: calc(var(--nav-height) + 3.2rem);
            padding-bottom: 4.5rem;
            min-height: auto;
            overflow: hidden;
            z-index: 1;
        }

        .hero-bg {
            position: absolute;
            inset: 0;
            z-index: -1;
            background: url('/assets/images/f65ff8fbef693089.jpg') center/cover no-repeat;
            opacity: 0.35;
        }

        .hero-bg::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(3,7,18,0.75) 0%, rgba(3,7,18,0.55) 40%, rgba(3,7,18,0.92) 100%);
        }

        .hero-overlay-grid {
            position: absolute;
            inset: 0;
            z-index: -1;
            background-image:
                linear-gradient(rgba(56,189,248,0.05) 1px, transparent 1px),
                linear-gradient(90deg, rgba(56,189,248,0.05) 1px, transparent 1px);
            background-size: 40px 40px;
            mask-image: radial-gradient(ellipse at center, black 40%, transparent 75%);
            -webkit-mask-image: radial-gradient(ellipse at center, black 40%, transparent 75%);
        }

        .hero-main-card {
            border-radius: var(--radius-lg);
            overflow: hidden;
            position: relative;
            background: var(--bg-glass);
            backdrop-filter: blur(20px) saturate(160%);
            -webkit-backdrop-filter: blur(20px) saturate(160%);
            border: 1px solid var(--border-glass);
            box-shadow: var(--shadow-lg), var(--shadow-glow-deep);
        }

        .hero-main-card .card-body {
            padding: 2.2rem;
        }

        .hero-badge-tag {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.08em;
            color: #FCD34D;
            background: rgba(245, 158, 11, 0.14);
            padding: 6px 14px;
            border-radius: 50px;
            border: 1px solid rgba(245, 158, 11, 0.35);
            margin-bottom: 1.4rem;
        }

        .hero-stats-row {
            display: flex;
            flex-wrap: wrap;
            gap: 1.8rem;
            margin-top: 1.8rem;
            padding-top: 1.6rem;
            border-top: 1px solid var(--border-subtle);
        }

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

        .hero-stat .stat-value {
            font-size: 1.55rem;
            font-weight: 800;
            color: var(--text-primary);
            letter-spacing: -0.02em;
            white-space: nowrap;
        }

        .hero-stat .stat-label {
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-top: 2px;
        }

        .hero-side-panel {
            border-radius: var(--radius-md);
            background: rgba(11, 26, 58, 0.55);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid var(--border-glass);
            padding: 1.6rem;
            box-shadow: var(--shadow-md);
        }

        .hero-side-panel h5 {
            font-size: 1rem;
            margin-bottom: 0.7rem;
            color: var(--text-primary);
        }

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

        .hero-side-list li {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 0.88rem;
            color: var(--text-secondary);
            padding: 0.55rem 0;
            border-bottom: 1px solid var(--border-subtle);
        }

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

        .hero-side-list li i {
            color: var(--accent-cyan);
            font-size: 0.85rem;
            width: 18px;
            text-align: center;
            flex-shrink: 0;
        }

        .btn-hero-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            background: linear-gradient(135deg, #2563EB 0%, #38BDF8 100%);
            color: #fff;
            font-weight: 700;
            font-size: 1rem;
            padding: 0.85rem 2.2rem;
            border-radius: 12px;
            border: none;
            box-shadow: 0 4px 22px rgba(37, 99, 235, 0.55), 0 0 0 1px rgba(56, 189, 248, 0.3);
            transition: all var(--transition-med);
            text-decoration: none;
        }

        .btn-hero-primary:hover {
            background: linear-gradient(135deg, #1D4ED8 0%, #0EA5E9 100%);
            color: #fff;
            box-shadow: 0 8px 38px rgba(37, 99, 235, 0.75);
            transform: translateY(-2px);
        }

        .btn-hero-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            background: transparent;
            color: var(--text-primary);
            font-weight: 600;
            font-size: 0.98rem;
            padding: 0.85rem 1.8rem;
            border-radius: 12px;
            border: 1px solid var(--border-strong);
            box-shadow: 0 0 16px rgba(37, 99, 235, 0.2);
            transition: all var(--transition-med);
            text-decoration: none;
        }

        .btn-hero-outline:hover {
            background: rgba(56, 189, 248, 0.1);
            border-color: var(--accent-cyan);
            color: var(--text-primary);
            box-shadow: 0 0 24px rgba(37, 99, 235, 0.45);
        }

        @media (max-width: 767.98px) {
            .hero-section {
                padding-top: calc(var(--nav-height) + 1.6rem);
                padding-bottom: 2.8rem;
            }
            .hero-main-card .card-body {
                padding: 1.4rem;
            }
            .hero-stats-row {
                gap: 1.2rem;
            }
            .hero-stat .stat-value {
                font-size: 1.25rem;
            }
            .hero-side-panel {
                padding: 1.2rem;
                margin-top: 1.2rem;
            }
        }

        /* ============ SECTION GENERAL ============ */
        .section-block {
            padding-top: 4.5rem;
            padding-bottom: 4.5rem;
            position: relative;
            z-index: 1;
        }

        .section-block-alt {
            background: rgba(8, 18, 41, 0.45);
            border-top: 1px solid var(--border-subtle);
            border-bottom: 1px solid var(--border-subtle);
        }

        .section-header {
            margin-bottom: 2.2rem;
            max-width: 760px;
        }

        .section-header .badge-soft {
            margin-bottom: 1rem;
        }

        /* ============ METRICS / DATA DASHBOARD ============ */
        .metric-dashboard {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.2rem;
        }

        .metric-card {
            background: var(--bg-glass);
            backdrop-filter: blur(14px) saturate(140%);
            -webkit-backdrop-filter: blur(14px) saturate(140%);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-md);
            padding: 1.5rem 1.2rem;
            text-align: left;
            transition: all var(--transition-med);
            position: relative;
            overflow: hidden;
        }

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

        .metric-card:hover {
            border-color: var(--border-strong);
            box-shadow: var(--shadow-glow-blue);
            transform: translateY(-2px);
        }

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

        .metric-card .metric-icon {
            font-size: 1.6rem;
            color: var(--accent-cyan);
            margin-bottom: 0.8rem;
        }

        .metric-card .metric-value {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--text-primary);
            letter-spacing: -0.02em;
            margin-bottom: 0.2rem;
        }

        .metric-card .metric-label {
            font-size: 0.86rem;
            color: var(--text-muted);
        }

        @media (max-width: 991.98px) {
            .metric-dashboard {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 520px) {
            .metric-dashboard {
                grid-template-columns: 1fr;
            }
        }

        /* ============ SERVICE MATRIX / GAME TYPES ============ */
        .game-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.2rem;
        }

        .game-card-item {
            background: var(--bg-glass);
            backdrop-filter: blur(14px) saturate(140%);
            -webkit-backdrop-filter: blur(14px) saturate(140%);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition-med);
            position: relative;
        }

        .game-card-item:hover {
            border-color: var(--border-strong);
            box-shadow: var(--shadow-glow-blue);
            transform: translateY(-4px);
        }

        .game-card-item .game-thumb {
            height: 150px;
            background-size: cover;
            background-position: center;
            position: relative;
        }

        .game-card-item .game-thumb::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 40%, rgba(3, 7, 18, 0.8) 100%);
        }

        .game-card-item .game-flag {
            position: absolute;
            top: 10px;
            right: 10px;
            z-index: 2;
            font-size: 0.7rem;
            font-weight: 700;
            padding: 4px 10px;
            border-radius: 50px;
            text-transform: uppercase;
            letter-spacing: 0.04em;
            background: rgba(239, 68, 68, 0.92);
            color: #fff;
            box-shadow: 0 2px 8px rgba(239, 68, 68, 0.4);
        }

        .game-card-item .game-flag-vip {
            background: rgba(245, 158, 11, 0.92);
            color: #0a0a0a;
            box-shadow: 0 2px 8px rgba(245, 158, 11, 0.45);
        }

        .game-card-item .game-body {
            padding: 1.1rem;
        }

        .game-card-item .game-body h4 {
            font-size: 0.98rem;
            font-weight: 650;
            margin-bottom: 0.4rem;
            color: var(--text-primary);
        }

        .game-card-item .game-body p {
            font-size: 0.8rem;
            color: var(--text-muted);
            line-height: 1.5;
            margin-bottom: 0;
        }

        .game-card-item .game-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.82rem;
            font-weight: 600;
            color: var(--accent-cyan);
            margin-top: 0.7rem;
            text-decoration: none;
        }

        .game-card-item .game-link:hover {
            color: var(--text-primary);
        }

        @media (max-width: 1199.98px) {
            .game-grid {
                grid-template-columns: repeat(3, 1fr);
            }
        }

        @media (max-width: 991.98px) {
            .game-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 520px) {
            .game-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ============ COMPARISON TABLE ============ */
        .compare-table-wrap {
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border-glass);
            background: var(--bg-glass);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
        }

        .compare-table {
            width: 100%;
            border-collapse: collapse;
            font-size: 0.88rem;
            color: var(--text-secondary);
            margin-bottom: 0;
        }

        .compare-table thead th {
            background: rgba(37, 99, 235, 0.16);
            color: var(--text-primary);
            font-weight: 700;
            padding: 0.9rem 1.1rem;
            border-bottom: 1px solid var(--border-strong);
            font-size: 0.88rem;
            white-space: nowrap;
        }

        .compare-table tbody td {
            padding: 0.85rem 1.1rem;
            border-bottom: 1px solid var(--border-subtle);
            color: var(--text-secondary);
        }

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

        .compare-table tbody tr:hover td {
            background: rgba(56, 189, 248, 0.04);
            color: var(--text-primary);
        }

        .compare-table .text-ok {
            color: #6EE7B7;
            font-weight: 600;
        }

        .compare-table .text-fast {
            color: #FCD34D;
            font-weight: 600;
        }

        @media (max-width: 767.98px) {
            .compare-table-wrap {
                overflow-x: auto;
            }
            .compare-table {
                font-size: 0.8rem;
                min-width: 600px;
            }
        }

        /* ============ MILESTONES / TIMELINE ============ */
        .timeline {
            display: flex;
            flex-direction: column;
            gap: 1.8rem;
            position: relative;
            padding-left: 1.6rem;
        }

        .timeline::before {
            content: '';
            position: absolute;
            left: 5px;
            top: 4px;
            bottom: 4px;
            width: 2px;
            background: linear-gradient(180deg, var(--accent-blue), var(--accent-cyan), transparent);
            border-radius: 2px;
        }

        .timeline-item {
            position: relative;
            padding-left: 1.4rem;
        }

        .timeline-item::before {
            content: '';
            position: absolute;
            left: -1.1rem;
            top: 5px;
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background: var(--accent-cyan);
            box-shadow: 0 0 12px rgba(56, 189, 248, 0.65);
            border: 2px solid var(--bg-primary);
        }

        .timeline-item .timeline-date {
            font-size: 0.78rem;
            font-weight: 700;
            color: var(--accent-cyan);
            text-transform: uppercase;
            letter-spacing: 0.06em;
            margin-bottom: 0.2rem;
        }

        .timeline-item h4 {
            font-size: 1rem;
            font-weight: 650;
            margin-bottom: 0.3rem;
            color: var(--text-primary);
        }

        .timeline-item p {
            font-size: 0.86rem;
            color: var(--text-muted);
            margin-bottom: 0;
        }

        /* ============ CMS NEWS LIST ============ */
        .news-list-layout {
            display: grid;
            grid-template-columns: 1.6fr 1fr;
            gap: 1.6rem;
        }

        .news-primary-list {
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }

        .news-item {
            display: flex;
            gap: 1.1rem;
            align-items: flex-start;
            background: var(--bg-glass);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-md);
            padding: 1rem 1.2rem;
            transition: all var(--transition-med);
        }

        .news-item:hover {
            border-color: var(--border-strong);
            box-shadow: var(--shadow-glow-blue);
            transform: translateX(3px);
        }

        .news-item .news-icon {
            flex-shrink: 0;
            width: 42px;
            height: 42px;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(37, 99, 235, 0.16);
            color: var(--accent-cyan);
            font-size: 1.05rem;
        }

        .news-item .news-content {
            flex: 1;
            min-width: 0;
        }

        .news-item .news-content h4 {
            font-size: 0.94rem;
            font-weight: 650;
            margin-bottom: 0.3rem;
            color: var(--text-primary);
            line-height: 1.45;
        }

        .news-item .news-content h4 a {
            color: var(--text-primary);
        }

        .news-item .news-content h4 a:hover {
            color: var(--accent-cyan);
        }

        .news-item .news-excerpt {
            font-size: 0.82rem;
            color: var(--text-muted);
            margin-bottom: 0.35rem;
            line-height: 1.5;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-item .news-meta {
            font-size: 0.75rem;
            color: var(--text-muted);
            display: flex;
            gap: 12px;
        }

        .news-sidebar {
            background: var(--bg-glass);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-md);
            padding: 1.3rem;
            position: sticky;
            top: calc(var(--nav-height) + 1.4rem);
            align-self: flex-start;
            box-shadow: var(--shadow-sm);
        }

        .news-sidebar h5 {
            font-size: 0.92rem;
            font-weight: 700;
            margin-bottom: 1rem;
            color: var(--text-primary);
            letter-spacing: 0.01em;
        }

        .news-sidebar .side-item {
            display: block;
            padding: 0.65rem 0;
            border-bottom: 1px solid var(--border-subtle);
            font-size: 0.84rem;
            color: var(--text-secondary);
            text-decoration: none;
        }

        .news-sidebar .side-item:hover {
            color: var(--accent-cyan);
        }

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

        .news-empty {
            text-align: center;
            padding: 2rem;
            color: var(--text-muted);
            font-size: 0.9rem;
        }

        @media (max-width: 991.98px) {
            .news-list-layout {
                grid-template-columns: 1fr;
            }
            .news-sidebar {
                position: static;
                margin-top: 1.2rem;
            }
        }

        @media (max-width: 520px) {
            .news-item {
                flex-direction: column;
                gap: 0.6rem;
            }
        }

        /* ============ GUARANTEES / SECURITY ============ */
        .guarantee-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.2rem;
        }

        .guarantee-item {
            background: var(--bg-glass);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-md);
            padding: 1.4rem 1.2rem;
            text-align: left;
            transition: all var(--transition-med);
        }

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

        .guarantee-item .g-icon {
            font-size: 1.5rem;
            color: var(--accent-cyan);
            margin-bottom: 0.8rem;
        }

        .guarantee-item h4 {
            font-size: 0.95rem;
            font-weight: 650;
            margin-bottom: 0.4rem;
            color: var(--text-primary);
        }

        .guarantee-item p {
            font-size: 0.82rem;
            color: var(--text-muted);
            margin-bottom: 0;
            line-height: 1.5;
        }

        @media (max-width: 991.98px) {
            .guarantee-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 520px) {
            .guarantee-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ============ QUICK ANSWERS / FAQ ============ */
        .quick-answers {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1rem;
            background: var(--bg-glass);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-lg);
            padding: 2rem;
        }

        .quick-answer-item {
            display: flex;
            gap: 12px;
            align-items: flex-start;
            padding: 0.8rem 0;
        }

        .quick-answer-item .qa-badge {
            flex-shrink: 0;
            width: 30px;
            height: 30px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(37, 99, 235, 0.2);
            color: var(--accent-cyan);
            font-size: 0.8rem;
            font-weight: 700;
            margin-top: 2px;
        }

        .quick-answer-item .qa-content h5 {
            font-size: 0.88rem;
            font-weight: 650;
            margin-bottom: 0.25rem;
            color: var(--text-primary);
        }

        .quick-answer-item .qa-content p {
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-bottom: 0;
            line-height: 1.5;
        }

        @media (max-width: 767.98px) {
            .quick-answers {
                grid-template-columns: 1fr;
                padding: 1.4rem;
            }
        }

        /* ============ FAQ SPECIFIC ============ */
        .faq-accordion .accordion-item {
            background: var(--bg-glass);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-md) !important;
            margin-bottom: 0.7rem;
            overflow: hidden;
            transition: all var(--transition-med);
        }

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

        .faq-accordion .accordion-button {
            background: transparent;
            color: var(--text-primary);
            font-size: 0.92rem;
            font-weight: 600;
            padding: 1.1rem 1.3rem;
            box-shadow: none;
        }

        .faq-accordion .accordion-button:not(.collapsed) {
            background: rgba(37, 99, 235, 0.14);
            color: var(--accent-cyan);
            box-shadow: none;
        }

        .faq-accordion .accordion-button:focus {
            box-shadow: 0 0 0 3px rgba(56, 189, 248, 0.3);
        }

        .faq-accordion .accordion-button::after {
            filter: invert(0.7);
        }

        .faq-accordion .accordion-body {
            background: rgba(3, 7, 18, 0.3);
            color: var(--text-secondary);
            font-size: 0.86rem;
            line-height: 1.65;
            padding: 0.9rem 1.3rem 1.2rem;
        }

        /* ============ CONVERSION FORM ============ */
        .conversion-section {
            position: relative;
            overflow: hidden;
            background: rgba(8, 18, 41, 0.55);
            border-top: 1px solid var(--border-glass);
            border-bottom: 1px solid var(--border-glass);
        }

        .conversion-card {
            background: var(--bg-glass);
            backdrop-filter: blur(18px) saturate(150%);
            -webkit-backdrop-filter: blur(18px) saturate(150%);
            border: 1px solid var(--border-strong);
            border-radius: var(--radius-lg);
            padding: 2.4rem;
            box-shadow: var(--shadow-lg), var(--shadow-glow-deep);
            position: relative;
            z-index: 2;
        }

        .conversion-card .conv-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 0.8rem;
            font-weight: 700;
            color: #FCD34D;
            background: rgba(245, 158, 11, 0.14);
            padding: 6px 16px;
            border-radius: 50px;
            border: 1px solid rgba(245, 158, 11, 0.4);
            margin-bottom: 1.2rem;
        }

        .form-control-custom {
            background: rgba(3, 7, 18, 0.55);
            border: 1px solid var(--border-glass);
            border-radius: 10px;
            color: var(--text-primary);
            font-size: 0.9rem;
            padding: 0.75rem 1.1rem;
            transition: all var(--transition-med);
        }

        .form-control-custom::placeholder {
            color: var(--text-muted);
            font-size: 0.86rem;
        }

        .form-control-custom:focus {
            background: rgba(3, 7, 18, 0.75);
            border-color: var(--accent-cyan);
            color: var(--text-primary);
            box-shadow: 0 0 0 4px rgba(56, 189, 248, 0.18);
        }

        .btn-convert {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            background: linear-gradient(135deg, #2563EB 0%, #0EA5E9 100%);
            color: #fff;
            font-weight: 700;
            font-size: 0.98rem;
            padding: 0.85rem 2.2rem;
            border-radius: 12px;
            border: none;
            box-shadow: 0 4px 22px rgba(37, 99, 235, 0.55);
            transition: all var(--transition-med);
            width: 100%;
        }

        .btn-convert:hover {
            background: linear-gradient(135deg, #1D4ED8 0%, #0284C7 100%);
            color: #fff;
            box-shadow: 0 8px 38px rgba(37, 99, 235, 0.75);
            transform: translateY(-2px);
        }

        .conv-note {
            font-size: 0.76rem;
            color: var(--text-muted);
            text-align: center;
            margin-top: 0.9rem;
            margin-bottom: 0;
        }

        /* ============ DOWNLOAD APP SECTION ============ */
        .app-download-card {
            display: flex;
            align-items: center;
            gap: 2rem;
            background: var(--bg-glass);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-lg);
            padding: 2rem;
            box-shadow: var(--shadow-md);
        }

        .app-download-card .app-icon {
            flex-shrink: 0;
            width: 80px;
            height: 80px;
            border-radius: 18px;
            background: linear-gradient(135deg, #2563EB, #38BDF8);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 2.2rem;
            color: #fff;
            box-shadow: 0 6px 24px rgba(37, 99, 235, 0.5);
        }

        .app-download-card .app-info h3 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 0.3rem;
        }

        .app-download-card .app-info p {
            font-size: 0.88rem;
            color: var(--text-muted);
            margin-bottom: 1rem;
        }

        .btn-download {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: linear-gradient(135deg, #2563EB, #38BDF8);
            color: #fff;
            font-weight: 600;
            font-size: 0.9rem;
            padding: 0.7rem 1.6rem;
            border-radius: 10px;
            border: none;
            box-shadow: 0 3px 16px rgba(37, 99, 235, 0.5);
            transition: all var(--transition-med);
            text-decoration: none;
        }

        .btn-download:hover {
            color: #fff;
            box-shadow: 0 0 28px rgba(37, 99, 235, 0.7);
            transform: translateY(-2px);
        }

        @media (max-width: 767.98px) {
            .app-download-card {
                flex-direction: column;
                text-align: center;
                padding: 1.5rem;
                gap: 1.4rem;
            }
        }

        /* ============ USER REVIEWS ============ */
        .review-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.2rem;
        }

        .review-card {
            background: var(--bg-glass);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-md);
            padding: 1.4rem;
            transition: all var(--transition-med);
        }

        .review-card:hover {
            border-color: var(--border-strong);
            box-shadow: var(--shadow-glow-blue);
            transform: translateY(-3px);
        }

        .review-card .review-stars {
            color: #FCD34D;
            font-size: 0.85rem;
            margin-bottom: 0.7rem;
            letter-spacing: 1px;
        }

        .review-card .review-text {
            font-size: 0.86rem;
            color: var(--text-secondary);
            line-height: 1.6;
            margin-bottom: 0.9rem;
            font-style: italic;
        }

        .review-card .review-author {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .review-card .review-author .avatar {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: rgba(37, 99, 235, 0.25);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-cyan);
            font-size: 0.8rem;
            font-weight: 700;
        }

        .review-card .review-author .name {
            font-size: 0.82rem;
            font-weight: 600;
            color: var(--text-primary);
        }

        .review-card .review-author .game-tag {
            font-size: 0.72rem;
            color: var(--text-muted);
        }

        @media (max-width: 991.98px) {
            .review-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 520px) {
            .review-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ============ QUICK START STEPS ============ */
        .steps-flow {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.4rem;
            counter-reset: step-counter;
        }

        .step-card {
            position: relative;
            background: var(--bg-glass);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-md);
            padding: 1.5rem 1.3rem;
            counter-increment: step-counter;
            transition: all var(--transition-med);
        }

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

        .step-card::before {
            content: counter(step-counter);
            position: absolute;
            top: -14px;
            left: 1.2rem;
            width: 34px;
            height: 34px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent-blue), var(--accent-cyan));
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 0.95rem;
            box-shadow: 0 3px 12px rgba(37, 99, 235, 0.55);
        }

        .step-card h4 {
            font-size: 0.96rem;
            font-weight: 650;
            margin-bottom: 0.4rem;
            margin-top: 0.4rem;
            color: var(--text-primary);
        }

        .step-card p {
            font-size: 0.82rem;
            color: var(--text-muted);
            margin-bottom: 0;
            line-height: 1.55;
        }

        @media (max-width: 991.98px) {
            .steps-flow {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 520px) {
            .steps-flow {
                grid-template-columns: 1fr;
            }
        }

        /* ============ FAB ============ */
        .fab-neon {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: 1050;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: rgba(7, 7, 13, 0.82);
            backdrop-filter: blur(14px) saturate(150%);
            -webkit-backdrop-filter: blur(14px) saturate(150%);
            border: 2px solid transparent;
            border-image: linear-gradient(135deg, #2563EB, #38BDF8, #F43F5E) 1;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            box-shadow: 0 0 20px rgba(37, 99, 235, 0.5), 0 6px 20px rgba(0, 0, 0, 0.5);
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            opacity: 0.8;
            animation: fab-float 3.2s ease-in-out infinite;
            text-decoration: none;
            outline-offset: 4px;
        }

        .fab-neon::before {
            content: '';
            position: absolute;
            inset: -3px;
            border-radius: 50%;
            border: 2px solid transparent;
            background: linear-gradient(135deg, #2563EB, #38BDF8, #F43F5E) border-box;
            -webkit-mask: linear-gradient(#fff 0 0) padding-box, linear-gradient(#fff 0 0);
            -webkit-mask-composite: xor;
            mask-composite: exclude;
            opacity: 0.7;
            animation: fab-pulse 2.4s ease-in-out infinite;
        }

        .fab-neon:hover {
            opacity: 1;
            transform: scale(1.1);
            box-shadow: 0 0 38px rgba(56, 189, 248, 0.75), 0 8px 30px rgba(0, 0, 0, 0.6);
        }

        .fab-neon:active {
            transform: scale(0.95);
            box-shadow: 0 0 16px rgba(37, 99, 235, 0.5);
            border-color: #F43F5E;
        }

        .fab-neon .fab-icon {
            color: #38BDF8;
            font-size: 1.45rem;
            animation: fab-flicker 2.8s ease-in-out infinite;
            position: relative;
            z-index: 1;
        }

        .fab-neon .fab-notification {
            position: absolute;
            top: -3px;
            right: -3px;
            width: 14px;
            height: 14px;
            background: #F43F5E;
            border-radius: 50%;
            border: 2px solid #07070D;
            box-shadow: 0 0 12px rgba(244, 63, 94, 0.8);
            animation: fab-notif-pulse 1.6s ease-in-out infinite;
            z-index: 2;
        }

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

        @keyframes fab-pulse {
            0%, 100% { opacity: 0.5; box-shadow: 0 0 8px rgba(37, 99, 235, 0.3); }
            50% { opacity: 0.9; box-shadow: 0 0 24px rgba(38, 184, 248, 0.6); }
        }

        @keyframes fab-flicker {
            0%, 100% { opacity: 1; }
            3% { opacity: 0.7; }
            6% { opacity: 1; }
            54% { opacity: 1; }
            57% { opacity: 0.8; }
            60% { opacity: 1; }
            92% { opacity: 1; }
            95% { opacity: 0.9; }
        }

        @keyframes fab-notif-pulse {
            0%, 100% { transform: scale(1); opacity: 1; }
            50% { transform: scale(1.2); opacity: 0.75; }
        }

        @media (max-width: 520px) {
            .fab-neon {
                width: 48px;
                height: 48px;
                left: 12px;
                bottom: 80px;
            }
            .fab-neon .fab-icon {
                font-size: 1.2rem;
            }
        }

        /* ============ FOOTER ============ */
        .site-footer {
            background: rgba(3, 7, 18, 0.85);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-top: 1px solid var(--border-glass);
            padding: 3rem 0 1.6rem;
            position: relative;
            z-index: 1;
        }

        .site-footer .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 1rem;
        }

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

        .site-footer .footer-brand .brand-text {
            font-size: 0.92rem;
            font-weight: 700;
            color: var(--text-primary);
        }

        .site-footer .footer-desc {
            font-size: 0.84rem;
            color: var(--text-muted);
            margin-bottom: 1.2rem;
            line-height: 1.6;
        }

        .site-footer .footer-heading {
            font-size: 0.85rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 1rem;
            text-transform: uppercase;
            letter-spacing: 0.05em;
        }

        .site-footer .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .site-footer .footer-links li {
            margin-bottom: 0.5rem;
        }

        .site-footer .footer-links li a {
            font-size: 0.84rem;
            color: var(--text-muted);
            text-decoration: none;
            transition: color var(--transition-fast);
        }

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

        .site-footer .footer-bottom {
            border-top: 1px solid var(--border-subtle);
            padding-top: 1.4rem;
            margin-top: 2rem;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 0.8rem;
        }

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

        .site-footer .footer-bottom .compliance {
            display: flex;
            align-items: center;
            gap: 14px;
            font-size: 0.78rem;
            color: var(--text-muted);
        }

        .site-footer .footer-bottom .compliance .age-badge {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: rgba(239, 68, 68, 0.15);
            border: 1px solid rgba(239, 68, 68, 0.4);
            color: #FCA5A5;
            font-weight: 800;
            font-size: 0.75rem;
        }

        @media (max-width: 767.98px) {
            .site-footer .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
            .site-footer .footer-bottom .compliance {
                flex-wrap: wrap;
            }
        }

        /* ============ RESPONSIVE GENERAL ============ */
        @media (max-width: 991.98px) {
            .section-block {
                padding-top: 3.4rem;
                padding-bottom: 3.4rem;
            }
        }

        @media (max-width: 520px) {
            .section-block {
                padding-top: 2.6rem;
                padding-bottom: 2.6rem;
            }
            h1 {
                font-size: 1.7rem;
            }
            h2 {
                font-size: 1.3rem;
            }
            .btn-hero-primary,
            .btn-hero-outline {
                font-size: 0.9rem;
                padding: 0.7rem 1.4rem;
            }
        }

/* roulang page: article */
:root {
            --bg-primary: #030712;
            --bg-secondary: #081229;
            --bg-tertiary: #0B1A3A;
            --bg-glass: rgba(11, 26, 58, 0.72);
            --bg-glass-light: rgba(27, 52, 96, 0.45);
            --accent-blue: #2563EB;
            --accent-cyan: #38BDF8;
            --accent-holo: #60A5FA;
            --accent-glow-blue: rgba(37, 99, 235, 0.5);
            --accent-glow-cyan: rgba(56, 189, 248, 0.5);
            --text-primary: #F8FAFC;
            --text-secondary: #94A3B8;
            --text-muted: #64748B;
            --text-accent: #60A5FA;
            --border-glass: rgba(56, 189, 248, 0.18);
            --border-strong: rgba(56, 189, 248, 0.35);
            --border-subtle: rgba(148, 163, 184, 0.12);
            --success: #10B981;
            --warning: #F59E0B;
            --danger: #EF4444;
            --radius-xs: 4px;
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 22px;
            --radius-xl: 30px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.25);
            --shadow-md: 0 8px 28px rgba(0, 0, 0, 0.38);
            --shadow-lg: 0 18px 50px rgba(0, 0, 0, 0.5);
            --shadow-glow-blue: 0 0 20px rgba(37, 99, 235, 0.45);
            --shadow-glow-cyan: 0 0 20px rgba(56, 189, 248, 0.45);
            --shadow-glow-deep: 0 0 45px rgba(37, 99, 235, 0.28);
            --font-sans: 'Segoe UI', 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Be Vietnam Pro', 'Roboto', sans-serif;
            --transition-fast: 0.18s ease;
            --transition-med: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
            --nav-height: 72px;
        }
        html {
            scroll-behavior: smooth;
            scroll-padding-top: calc(var(--nav-height) + 16px);
        }
        body {
            font-family: var(--font-sans);
            background-color: var(--bg-primary);
            background-image:
                radial-gradient(ellipse at 15% 10%, rgba(37, 99, 235, 0.08) 0%, transparent 55%),
                radial-gradient(ellipse at 85% 35%, rgba(56, 189, 248, 0.05) 0%, transparent 50%),
                radial-gradient(ellipse at 50% 80%, rgba(11, 26, 58, 0.4) 0%, transparent 60%),
                linear-gradient(180deg, #030712 0%, #030D22 28%, #030712 72%, #050A18 100%);
            color: var(--text-primary);
            line-height: 1.6;
            min-height: 100vh;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        body::before {
            content: '';
            position: fixed;
            inset: 0;
            background-image:
                linear-gradient(rgba(56, 189, 248, 0.02) 1px, transparent 1px),
                linear-gradient(90deg, rgba(56, 189, 248, 0.02) 1px, transparent 1px);
            background-size: 48px 48px;
            pointer-events: none;
            z-index: 0;
        }
        a {
            color: var(--accent-cyan);
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        a:hover,
        a:focus-visible {
            color: var(--text-primary);
            text-decoration: none;
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--accent-cyan);
            outline-offset: 3px;
            border-radius: var(--radius-xs);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container-fluid {
            position: relative;
            z-index: 1;
        }
        .section-subtitle {
            color: var(--text-secondary);
            font-size: 1.02rem;
            line-height: 1.6;
            max-width: 720px;
        }
        .text-gradient {
            background: linear-gradient(135deg, #60A5FA 0%, #38BDF8 45%, #22D3EE 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .text-glow {
            text-shadow: 0 0 22px rgba(56, 189, 248, 0.45);
        }
        .badge-soft {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 14px;
            border-radius: 50px;
            font-size: 0.8rem;
            font-weight: 500;
            letter-spacing: 0.02em;
            color: var(--text-accent);
            background: rgba(56, 189, 248, 0.1);
            border: 1px solid rgba(56, 189, 248, 0.25);
            backdrop-filter: blur(6px);
            -webkit-backdrop-filter: blur(6px);
        }
        .badge-hot {
            background: rgba(239, 68, 68, 0.15);
            color: #FCA5A5;
            border-color: rgba(239, 68, 68, 0.35);
        }
        .badge-vip {
            background: rgba(245, 158, 11, 0.15);
            color: #FCD34D;
            border-color: rgba(245, 158, 11, 0.4);
        }
        .badge-new {
            background: rgba(16, 185, 129, 0.15);
            color: #6EE7B7;
            border-color: rgba(16, 185, 129, 0.35);
        }
        /* ============ NAVBAR ============ */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1030;
            background: rgba(3, 7, 18, 0.9);
            border-bottom: 1px solid var(--border-glass);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
        }
        .navbar {
            min-height: var(--nav-height);
        }
        .nav-logo-link {
            display: flex;
            align-items: center;
            gap: 10px;
            color: var(--text-primary);
            white-space: nowrap;
        }
        .nav-logo-link:hover {
            color: var(--text-primary);
        }
        .nav-logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--accent-blue), var(--accent-cyan));
            color: #fff;
            font-size: 1.2rem;
            box-shadow: var(--shadow-glow-blue);
        }
        .nav-logo-text {
            font-weight: 700;
            font-size: 1.1rem;
            letter-spacing: 0.01em;
            line-height: 1.2;
            display: flex;
            flex-direction: column;
        }
        .nav-logo-text small {
            font-size: 0.7rem;
            font-weight: 500;
            color: var(--text-secondary);
            letter-spacing: 0.02em;
        }
        .navbar-nav-custom .nav-link {
            color: var(--text-secondary);
            font-weight: 500;
            padding: 0.75rem 1rem;
            transition: color var(--transition-fast), background var(--transition-fast);
            border-radius: var(--radius-sm);
        }
        .navbar-nav-custom .nav-link:hover,
        .navbar-nav-custom .nav-link:focus-visible {
            color: var(--text-primary);
            background: rgba(56, 189, 248, 0.08);
        }
        .navbar-nav-custom .nav-link.active {
            color: var(--text-primary);
            background: rgba(56, 189, 248, 0.12);
            box-shadow: inset 0 0 0 1px rgba(56, 189, 248, 0.2);
        }
        .nav-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-left: 1rem;
        }
        .btn-nav-login {
            color: var(--text-accent);
            border: 1px solid rgba(56, 189, 248, 0.4);
            background: transparent;
            padding: 0.55rem 1.2rem;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.9rem;
            transition: all var(--transition-fast);
        }
        .btn-nav-login:hover {
            color: #fff;
            border-color: var(--accent-cyan);
            background: rgba(56, 189, 248, 0.1);
        }
        .btn-nav-primary {
            background: linear-gradient(135deg, var(--accent-blue), var(--accent-cyan));
            color: #fff;
            border: none;
            padding: 0.55rem 1.3rem;
            border-radius: 50px;
            font-weight: 700;
            font-size: 0.9rem;
            box-shadow: var(--shadow-glow-blue);
            transition: all var(--transition-fast);
        }
        .btn-nav-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 0 24px rgba(37, 99, 235, 0.6);
            color: #fff;
        }
        @media (max-width: 991.98px) {
            .navbar-collapse {
                position: fixed;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background: rgba(3, 7, 18, 0.98);
                padding: 1rem 1.5rem;
                border-bottom: 1px solid var(--border-glass);
                max-height: calc(100vh - var(--nav-height));
                overflow-y: auto;
            }
            .nav-actions {
                flex-direction: column;
                align-items: stretch;
                margin: 1rem 0 0;
            }
            .btn-nav-login,
            .btn-nav-primary {
                text-align: center;
                width: 100%;
            }
        }
        /* ============ BREADCRUMB ============ */
        .breadcrumb-wrapper {
            padding: 2rem 0 1rem;
        }
        .breadcrumb-custom {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 0.5rem;
            list-style: none;
            margin: 0;
            padding: 0;
            font-size: 0.85rem;
            color: var(--text-muted);
        }
        .breadcrumb-custom li + li::before {
            content: '›';
            margin-right: 0.5rem;
            color: var(--text-muted);
        }
        .breadcrumb-custom a {
            color: var(--text-secondary);
        }
        .breadcrumb-custom a:hover {
            color: var(--accent-cyan);
        }
        /* ============ ARTICLE HERO ============ */
        .article-hero {
            padding: 3rem 0 2rem;
            position: relative;
        }
        .article-hero::before {
            content: '';
            position: absolute;
            top: 0;
            right: 0;
            width: 60%;
            height: 100%;
            background: radial-gradient(ellipse at right top, rgba(37, 99, 235, 0.1), transparent 70%);
            pointer-events: none;
        }
        .article-category {
            display: inline-block;
            margin-bottom: 1rem;
        }
        .article-title {
            font-size: 2.6rem;
            font-weight: 800;
            line-height: 1.2;
            letter-spacing: -0.01em;
            color: var(--text-primary);
            max-width: 900px;
            margin-bottom: 1.5rem;
        }
        .article-meta {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 1.5rem;
            color: var(--text-secondary);
            font-size: 0.9rem;
            margin-bottom: 2rem;
        }
        .article-meta i {
            color: var(--accent-cyan);
            margin-right: 0.3rem;
        }
        .article-cover {
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-glass);
            box-shadow: var(--shadow-lg);
            margin-bottom: 3rem;
            background: var(--bg-glass);
        }
        .article-cover img {
            width: 100%;
            height: 360px;
            object-fit: cover;
            display: block;
        }
        /* ============ ARTICLE BODY ============ */
        .article-body {
            max-width: 800px;
            margin: 0 auto;
            color: var(--text-secondary);
            font-size: 1.02rem;
            line-height: 1.6;
        }
        .article-body h2 {
            color: var(--text-primary);
            font-size: 1.9rem;
            font-weight: 700;
            margin-top: 2.5rem;
            margin-bottom: 1rem;
            letter-spacing: -0.01em;
        }
        .article-body h3 {
            color: var(--text-primary);
            font-size: 1.4rem;
            font-weight: 600;
            margin-top: 1.8rem;
            margin-bottom: 0.8rem;
        }
        .article-body p {
            margin-bottom: 2rem;
            color: var(--text-secondary);
        }
        .article-body ul,
        .article-body ol {
            margin-bottom: 1.5rem;
            padding-left: 1.2rem;
        }
        .article-body li {
            margin-bottom: 0.6rem;
        }
        .article-body img {
            border-radius: var(--radius-md);
            margin: 1.5rem 0;
            border: 1px solid var(--border-glass);
        }
        .article-body blockquote {
            border-left: 3px solid var(--accent-cyan);
            padding: 1rem 1.5rem;
            margin: 2rem 0;
            background: rgba(56, 189, 248, 0.05);
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
            color: var(--text/accent);
        }
        /* ============ NOT FOUND ============ */
        .not-found-box {
            text-align: center;
            padding: 4rem 1.5rem;
            background: var(--bg-glass);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-lg);
        }
        .not-found-box i {
            font-size: 3rem;
            color: var(--text-muted);
            margin-bottom: 1rem;
        }
        .not-found-box h2 {
            color: var(--text-primary);
            margin-bottom: 1rem;
        }
        /* ============ METRICS ============ */
        .metrics-section {
            padding: 4rem 0;
            border-top: 1px solid var(--border-subtle);
            border-bottom: 1px solid var(--border-subtle);
            background: rgba(3, 7, 18, 0.5);
        }
        .metric-card {
            background: var(--bg-glass);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-lg);
            padding: 2rem 1.5rem;
            text-align: center;
            transition: all var(--transition-med);
        }
        .metric-card:hover {
            border-color: var(--border-strong);
            box-shadow: var(--shadow-glow-blue);
            transform: translateY(-4px);
        }
        .metric-icon {
            font-size: 2rem;
            color: var(--accent-cyan);
            margin-bottom: 1rem;
        }
        .metric-value {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--text-primary);
            letter-spacing: -0.02em;
        }
        .metric-label {
            color: var(--text-secondary);
            font-size: 0.9rem;
            margin-top: 0.5rem;
        }
        /* ============ STEPS ============ */
        .steps-section {
            padding: 4rem 0;
        }
        .step-item {
            display: flex;
            align-items: flex-start;
            gap: 1.2rem;
            padding: 1.5rem;
            border-radius: var(--radius-md);
            background: transparent;
            transition: background var(--transition-fast);
        }
        .step-item:hover {
            background: rgba(56, 189, 248, 0.04);
        }
        .step-number {
            flex-shrink: 0;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent-blue), var(--accent-cyan));
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 1.2rem;
            box-shadow: var(--shadow-glow-blue);
        }
        .step-content h3 {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 0.3rem;
        }
        .step-content p {
            color: var(--text-secondary);
            margin: 0;
            font-size: 0.95rem;
        }
        /* ============ FAQ ============ */
        .faq-section {
            padding: 4rem 0;
            border-top: 1px solid var(--border-subtle);
        }
        .accordion-item {
            background: var(--bg-glass);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-md) !important;
            margin-bottom: 1rem;
            overflow: hidden;
        }
        .accordion-button {
            background: transparent;
            color: var(--text-primary);
            font-weight: 600;
            padding: 1.2rem 1.5rem;
            box-shadow: none;
        }
        .accordion-button:not(.collapsed) {
            background: rgba(56, 189, 248, 0.06);
            color: var(--accent-cyan);
            box-shadow: none;
        }
        .accordion-button:focus {
            box-shadow: none;
        }
        .accordion-button::after {
            filter: invert(1);
        }
        .accordion-body {
            color: var(--text-secondary);
            padding: 1.2rem 1.5rem;
            line-height: 1.6;
        }
        /* ============ CTA ============ */
        .cta-section {
            padding: 4rem 0;
            border-top: 1px solid var(--border-subtle);
        }
        .cta-card {
            background: var(--bg-glass);
            border: 1px solid var(--border-strong);
            border-radius: var(--radius-xl);
            padding: 3rem 2rem;
            text-align: center;
            box-shadow: var(--shadow-glow-deep);
        }
        .cta-card h2 {
            color: var(--text-primary);
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: 1rem;
        }
        .cta-card p {
            color: var(--text-secondary);
            max-width: 600px;
            margin: 0 auto 2rem;
        }
        .btn-cta {
            background: linear-gradient(135deg, var(--accent-blue), var(--accent-cyan));
            color: #fff;
            border: none;
            padding: 0.9rem 2.5rem;
            border-radius: 50px;
            font-weight: 700;
            font-size: 1rem;
            box-shadow: var(--shadow-glow-blue);
            transition: all var(--transition-fast);
        }
        .btn-cta:hover {
            transform: translateY(-3px);
            box-shadow: 0 0 30px rgba(37, 99, 235, 0.7);
            color: #fff;
        }
        /* ============ FOOTER ============ */
        .site-footer {
            background: #02040A;
            border-top: 1px solid var(--border-glass);
            padding: 4rem 0 2rem;
            position: relative;
            z-index: 1;
        }
        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 1.5rem;
        }
        .footer-brand .nav-logo-icon {
            width: 36px;
            height: 36px;
            font-size: 1rem;
        }
        .footer-brand .brand-text {
            font-weight: 700;
            color: var(--text-primary);
            font-size: 1.1rem;
            line-height: 1.3;
        }
        .footer-desc {
            color: var(--text-secondary);
            font-size: 0.95rem;
            max-width: 400px;
        }
        .footer-heading {
            color: var(--text-primary);
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 1.2rem;
        }
        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-links li {
            margin-bottom: 0.7rem;
        }
        .footer-links a {
            color: var(--text-secondary);
            font-size: 0.9rem;
            transition: color var(--transition-fast);
        }
        .footer-links a:hover {
            color: var(--accent-cyan);
        }
        .footer-links i {
            width: 1rem;
        }
        .copyright {
            margin-top: 3rem;
            padding-top: 1.5rem;
            border-top: 1px solid var(--border-subtle);
            color: var(--text-muted);
            font-size: 0.85rem;
            text-align: center;
        }
        /* ============ RESPONSIVE ============ */
        @media (max-width: 991.98px) {
            .article-title {
                font-size: 2rem;
            }
            .article-meta {
                gap: 1rem;
            }
        }
        @media (max-width: 767.98px) {
            .article-hero {
                padding: 2rem 0 1.5rem;
            }
            .article-title {
                font-size: 1.6rem;
            }
            .article-cover img {
                height: 240px;
            }
            .metric-value {
                font-size: 1.8rem;
            }
            .cta-card {
                padding: 2rem 1.5rem;
            }
        }
        @media (max-width: 519.98px) {
            .nav-logo-text {
                font-size: 0.9rem;
            }
            .nav-logo-text small {
                font-size: 0.6rem;
            }
            .article-meta {
                flex-direction: column;
                align-items: flex-start;
                gap: 0.5rem;
            }
        }

/* roulang page: category1 */
:root {
            --bg-primary: #030712;
            --bg-secondary: #081229;
            --bg-tertiary: #0B1A3A;
            --bg-glass: rgba(11, 26, 58, 0.72);
            --bg-glass-light: rgba(27, 52, 96, 0.45);
            --accent-blue: #2563EB;
            --accent-cyan: #38BDF8;
            --accent-holo: #60A5FA;
            --accent-glow-blue: rgba(37, 99, 235, 0.5);
            --accent-glow-cyan: rgba(56, 189, 248, 0.5);
            --text-primary: #F8FAFC;
            --text-secondary: #94A3B8;
            --text-muted: #64748B;
            --text-accent: #60A5FA;
            --border-glass: rgba(56, 189, 248, 0.18);
            --border-strong: rgba(56, 189, 248, 0.35);
            --border-subtle: rgba(148, 163, 184, 0.12);
            --success: #10B981;
            --warning: #F59E0B;
            --danger: #EF4444;
            --radius-xs: 4px;
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 22px;
            --radius-xl: 30px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.25);
            --shadow-md: 0 8px 28px rgba(0, 0, 0, 0.38);
            --shadow-lg: 0 18px 50px rgba(0, 0, 0, 0.5);
            --shadow-glow-blue: 0 0 20px rgba(37, 99, 235, 0.45);
            --shadow-glow-cyan: 0 0 20px rgba(56, 189, 248, 0.45);
            --shadow-glow-deep: 0 0 45px rgba(37, 99, 235, 0.28);
            --font-sans: 'Segoe UI', 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Be Vietnam Pro', 'Roboto', sans-serif;
            --transition-fast: 0.18s ease;
            --transition-med: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
            --nav-height: 72px;
        }

        html {
            scroll-behavior: smooth;
            scroll-padding-top: calc(var(--nav-height) + 16px);
        }

        body {
            font-family: var(--font-sans);
            background-color: var(--bg-primary);
            background-image:
                radial-gradient(ellipse at 15% 10%, rgba(37, 99, 235, 0.08) 0%, transparent 55%),
                radial-gradient(ellipse at 85% 35%, rgba(56, 189, 248, 0.05) 0%, transparent 50%),
                radial-gradient(ellipse at 50% 80%, rgba(11, 26, 58, 0.4) 0%, transparent 60%),
                linear-gradient(180deg, #030712 0%, #030D22 28%, #030712 72%, #050A18 100%);
            color: var(--text-primary);
            line-height: 1.6;
            min-height: 100vh;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body::before {
            content: '';
            position: fixed;
            inset: 0;
            background-image:
                linear-gradient(rgba(56, 189, 248, 0.02) 1px, transparent 1px),
                linear-gradient(90deg, rgba(56, 189, 248, 0.02) 1px, transparent 1px);
            background-size: 48px 48px;
            pointer-events: none;
            z-index: 0;
        }

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

        a:hover,
        a:focus-visible {
            color: var(--text-primary);
            text-decoration: none;
        }

        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--accent-cyan);
            outline-offset: 3px;
            border-radius: var(--radius-xs);
        }

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

        .section-subtitle {
            color: var(--text-secondary);
            font-size: 1.02rem;
            line-height: 1.6;
            max-width: 720px;
        }

        /* Utility */
        .text-gradient {
            background: linear-gradient(135deg, #60A5FA 0%, #38BDF8 45%, #22D3EE 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .text-glow {
            text-shadow: 0 0 22px rgba(56, 189, 248, 0.45);
        }

        .badge-soft {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 14px;
            border-radius: 50px;
            font-size: 0.8rem;
            font-weight: 500;
            letter-spacing: 0.02em;
            color: var(--text-accent);
            background: rgba(56, 189, 248, 0.1);
            border: 1px solid rgba(56, 189, 248, 0.25);
            backdrop-filter: blur(6px);
            -webkit-backdrop-filter: blur(6px);
        }

        .badge-hot {
            background: rgba(239, 68, 68, 0.15);
            color: #FCA5A5;
            border-color: rgba(239, 68, 68, 0.35);
        }

        .badge-vip {
            background: rgba(245, 158, 11, 0.15);
            color: #FCD34D;
            border-color: rgba(245, 158, 11, 0.4);
        }

        .badge-new {
            background: rgba(16, 185, 129, 0.15);
            color: #6EE7B7;
            border-color: rgba(16, 185, 129, 0.35);
        }

        /* Container */
        .container-fluid {
            padding-left: clamp(16px, 3vw, 48px);
            padding-right: clamp(16px, 3vw, 48px);
            max-width: 1440px;
            margin-left: auto;
            margin-right: auto;
            position: relative;
            z-index: 1;
        }

        /* Header / Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 90;
            height: var(--nav-height);
            background: rgba(3, 7, 18, 0.87);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-subtle);
            display: flex;
            align-items: center;
        }

        .navbar-dark .navbar-toggler {
            border-color: rgba(56, 189, 248, 0.3);
            color: var(--text-primary);
        }

        .navbar-dark .navbar-toggler:focus {
            box-shadow: 0 0 0 3px rgba(56, 189, 248, 0.2);
        }

        .nav-logo-link {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            color: var(--text-primary);
            font-size: 1rem;
            font-weight: 700;
            flex-shrink: 0;
        }

        .nav-logo-link:hover {
            color: var(--text-primary);
        }

        .nav-logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: var(--radius-sm);
            background: linear-gradient(135deg, rgba(37, 99, 235, 0.3), rgba(56, 189, 248, 0.12));
            border: 1px solid var(--border-strong);
            color: var(--accent-cyan);
            font-size: 1rem;
            box-shadow: var(--shadow-glow-blue);
        }

        .nav-logo-text {
            display: flex;
            flex-direction: column;
            line-height: 1.15;
            font-size: 0.92rem;
            font-weight: 700;
            color: var(--text-primary);
        }

        .nav-logo-text small {
            font-size: 0.65rem;
            font-weight: 400;
            color: var(--text-secondary);
            letter-spacing: 0.02em;
        }

        .navbar-nav-custom .nav-link {
            color: var(--text-secondary);
            font-size: 0.88rem;
            font-weight: 500;
            padding: 8px 14px !important;
            border-radius: var(--radius-xs);
            transition: color var(--transition-fast), background var(--transition-fast);
            position: relative;
        }

        .navbar-nav-custom .nav-link:hover {
            color: var(--text-primary);
            background: rgba(56, 189, 248, 0.08);
        }

        .navbar-nav-custom .nav-link.active {
            color: var(--accent-cyan);
            background: rgba(56, 189, 248, 0.12);
            box-shadow: inset 0 -2px 0 var(--accent-cyan);
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
            margin-left: auto;
        }

        .btn-nav-login {
            color: var(--text-secondary);
            border: 1px solid var(--border-subtle);
            background: transparent;
            padding: 7px 16px;
            font-size: 0.82rem;
            font-weight: 500;
            border-radius: var(--radius-xs);
            transition: all var(--transition-fast);
        }

        .btn-nav-login:hover {
            color: var(--text-primary);
            border-color: var(--border-strong);
            background: rgba(56, 189, 248, 0.08);
        }

        .btn-nav-primary {
            background: linear-gradient(135deg, var(--accent-blue), var(--accent-cyan));
            color: #FFFFFF;
            border: none;
            padding: 7px 18px;
            font-size: 0.82rem;
            font-weight: 600;
            border-radius: var(--radius-xs);
            box-shadow: var(--shadow-glow-blue);
            transition: all var(--transition-fast);
        }

        .btn-nav-primary:hover {
            color: #FFFFFF;
            box-shadow: var(--shadow-glow-deep);
            transform: translateY(-1px);
        }

        @media (min-width: 992px) {
            .nav-actions {
                margin-left: 16px;
            }
        }

        @media (max-width: 991.98px) {
            #mainNavbar {
                position: absolute;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background: rgba(3, 7, 18, 0.97);
                border-bottom: 1px solid var(--border-subtle);
                padding: 16px clamp(16px, 3vw, 48px);
                backdrop-filter: blur(20px);
                -webkit-backdrop-filter: blur(20px);
            }
            .nav-actions {
                flex-direction: column;
                align-items: stretch;
                margin-top: 12px;
                gap: 8px;
            }
            .navbar-nav-custom {
                gap: 4px;
            }
        }

        /* Section base */
        .section {
            padding: 64px 0;
            position: relative;
            z-index: 1;
        }

        .section-sm {
            padding: 40px 0;
        }

        .section-heading {
            font-size: 1.85rem;
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-primary);
            margin-bottom: 10px;
        }

        .section-heading-sm {
            font-size: 1.45rem;
            font-weight: 650;
            line-height: 1.35;
            color: var(--text-primary);
            margin-bottom: 8px;
        }

        /* Hero */
        .hero-category {
            position: relative;
            padding: 72px 0 56px;
            overflow: hidden;
            background-image: linear-gradient(180deg, rgba(3, 7, 18, 0.6) 0%, rgba(3, 7, 18, 0.85) 70%), url('/assets/images/524792ef36e4af02.jpg');
            background-size: cover;
            background-position: center;
            border-bottom: 1px solid var(--border-subtle);
        }

        .hero-category::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: linear-gradient(90deg, transparent, var(--border-strong), transparent);
        }

        .hero-category .badge-soft {
            margin-bottom: 16px;
        }

        .hero-title {
            font-size: clamp(1.75rem, 4vw, 2.7rem);
            font-weight: 800;
            line-height: 1.2;
            color: var(--text-primary);
            margin-bottom: 16px;
            letter-spacing: -0.01em;
        }

        .hero-desc {
            font-size: 1.05rem;
            color: var(--text-secondary);
            max-width: 640px;
            line-height: 1.6;
            margin-bottom: 24px;
        }

        .hero-cta-group {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            align-items: center;
            margin-bottom: 24px;
        }

        .btn-primary-glow {
            background: linear-gradient(135deg, var(--accent-blue), var(--accent-cyan));
            color: #FFFFFF;
            border: none;
            padding: 12px 28px;
            font-size: 0.95rem;
            font-weight: 600;
            border-radius: var(--radius-sm);
            box-shadow: var(--shadow-glow-blue);
            transition: all var(--transition-med);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

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

        .btn-secondary-glass {
            background: rgba(56, 189, 248, 0.08);
            color: var(--text-primary);
            border: 1px solid var(--border-strong);
            padding: 12px 24px;
            font-size: 0.95rem;
            font-weight: 500;
            border-radius: var(--radius-sm);
            transition: all var(--transition-med);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .btn-secondary-glass:hover {
            background: rgba(56, 189, 248, 0.16);
            color: var(--text-primary);
            border-color: var(--accent-cyan);
            box-shadow: var(--shadow-glow-cyan);
        }

        .countdown-card {
            background: var(--bg-glass);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-lg);
            padding: 20px 24px;
            box-shadow: var(--shadow-md);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 12px;
            max-width: 520px;
        }

        .countdown-label {
            font-size: 0.8rem;
            text-transform: uppercase;
            letter-spacing: 0.06em;
            color: var(--text-secondary);
            flex-basis: 100%;
        }

        .countdown-timer {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
        }

        .countdown-unit {
            min-width: 62px;
            text-align: center;
            background: rgba(3, 7, 18, 0.6);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-sm);
            padding: 10px 8px;
        }

        .countdown-number {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--text-primary);
            line-height: 1.1;
            font-variant-numeric: tabular-nums;
        }

        .countdown-unit-label {
            font-size: 0.68rem;
            text-transform: uppercase;
            letter-spacing: 0.04em;
            color: var(--text-muted);
        }

        .hero-image-wrap {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-glass);
            box-shadow: var(--shadow-lg);
        }

        .hero-image-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            min-height: 280px;
        }

        .hero-image-badge {
            position: absolute;
            top: 16px;
            right: 16px;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 14px;
            background: rgba(3, 7, 18, 0.85);
            border: 1px solid rgba(245, 158, 11, 0.5);
            border-radius: 50px;
            font-size: 0.78rem;
            font-weight: 600;
            color: #FCD34D;
            backdrop-filter: blur(8px);
        }

        /* Metrics */
        .metrics-row {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 16px;
        }

        .metric-card {
            background: var(--bg-glass);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-md);
            padding: 24px 20px;
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            transition: all var(--transition-fast);
        }

        .metric-card:hover {
            border-color: var(--border-strong);
            box-shadow: var(--shadow-glow-cyan);
        }

        .metric-value {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--text-primary);
            line-height: 1.2;
            margin-bottom: 4px;
            font-variant-numeric: tabular-nums;
        }

        .metric-value .metric-unit {
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
        }

        .metric-label {
            font-size: 0.82rem;
            color: var(--text-secondary);
            line-height: 1.4;
        }

        @media (min-width: 768px) {
            .metrics-row {
                grid-template-columns: repeat(4, 1fr);
            }
        }

        /* Feature cards */
        .feature-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 20px;
        }

        .feature-card {
            background: var(--bg-glass);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-md);
            padding: 26px 22px;
            display: flex;
            flex-direction: column;
            gap: 12px;
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            transition: all var(--transition-med);
            position: relative;
            overflow: hidden;
        }

        .feature-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 2px;
            background: linear-gradient(90deg, transparent, var(--accent-cyan), transparent);
            opacity: 0;
            transition: opacity var(--transition-med);
        }

        .feature-card:hover {
            border-color: var(--border-strong);
            transform: translateY(-3px);
            box-shadow: var(--shadow-md);
        }

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

        .feature-icon {
            width: 46px;
            height: 46px;
            border-radius: var(--radius-sm);
            background: rgba(37, 99, 235, 0.18);
            border: 1px solid var(--border-natural, rgba(56, 189, 248, 0.3));
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-cyan);
            font-size: 1.15rem;
        }

        .feature-card h3 {
            font-size: 1.05rem;
            font-weight: 650;
            color: var(--text-primary);
            margin-bottom: 0;
        }

        .feature-card p {
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.6;
            margin-bottom: 0;
        }

        @media (min-width: 768px) {
            .feature-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (min-width: 992px) {
            .feature-grid {
                grid-template-columns: repeat(3, 1fr);
            }
        }

        /* Comparison */
        .comparison-wrap {
            background: var(--bg-glass);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
        }

        .comparison-table {
            width: 100%;
            border-collapse: separate;
            border-spacing: 0;
            font-size: 0.88rem;
        }

        .comparison-table th {
            background: rgba(37, 99, 235, 0.14);
            color: var(--text-accent);
            font-weight: 600;
            font-size: 0.8rem;
            text-transform: uppercase;
            letter-spacing: 0.04em;
            padding: 12px 14px;
            border-bottom: 1px solid var(--border-strong);
            text-align: left;
        }

        .comparison-table th:first-child {
            border-radius: var(--radius-sm) 0 0 0;
        }

        .comparison-table th:last-child {
            border-radius: 0 var(--radius-sm) 0 0;
        }

        .comparison-table td {
            padding: 12px 14px;
            border-bottom: 1px solid var(--border-subtle);
            color: var(--text-secondary);
            vertical-align: top;
        }

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

        .comparison-table td:first-child {
            color: var(--text-primary);
            font-weight: 500;
        }

        .comparison-table .highlight-cell {
            color: var(--text-primary);
            font-weight: 600;
        }

        .comparison-table .text-success {
            color: #6EE7B7 !important;
        }

        .comparison-table .text-danger {
            color: #FCA5A5 !important;
        }

        /* Timeline / Milestone */
        .timeline-wrap {
            display: flex;
            flex-direction: column;
            gap: 16px;
            position: relative;
        }

        .timeline-wrap::before {
            content: '';
            position: absolute;
            left: 18px;
            top: 8px;
            bottom: 8px;
            width: 2px;
            background: linear-gradient(180deg, var(--accent-blue), var(--accent-cyan), transparent);
            opacity: 0.4;
        }

        .timeline-item {
            display: flex;
            gap: 18px;
            align-items: flex-start;
            position: relative;
            padding-left: 0;
        }

        .timeline-dot {
            flex-shrink: 0;
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: var(--bg-tertiary);
            border: 2px solid var(--border-strong);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-cyan);
            font-size: 0.85rem;
            font-weight: 700;
            box-shadow: var(--shadow-glow-cyan);
            z-index: 1;
        }

        .timeline-content {
            flex: 1;
            background: var(--bg-glass);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-md);
            padding: 16px 20px;
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
        }

        .timeline-content h4 {
            font-size: 0.95rem;
            font-weight: 650;
            color: var(--text-primary);
            margin-bottom: 4px;
        }

        .timeline-content p {
            font-size: 0.84rem;
            color: var(--text-secondary);
            margin-bottom: 0;
            line-height: 1.55;
        }

        /* News list */
        .news-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 18px;
        }

        .news-card {
            background: var(--bg-glass);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-md);
            padding: 20px;
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            transition: all var(--transition-med);
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .news-card:hover {
            border-color: var(--border-strong);
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }

        .news-card h3 {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 4px;
            line-height: 1.4;
        }

        .news-card h3 a {
            color: var(--text-primary);
        }

        .news-card h3 a:hover {
            color: var(--accent-cyan);
        }

        .news-card .news-excerpt {
            font-size: 0.84rem;
            color: var(--text-secondary);
            line-height: 1.55;
            flex: 1;
        }

        .news-card .news-meta {
            display: flex;
            gap: 12px;
            align-items: center;
            font-size: 0.76rem;
            color: var(--text-muted);
        }

        .news-card .news-category-tag {
            display: inline-block;
            padding: 3px 10px;
            font-size: 0.7rem;
            font-weight: 500;
            border-radius: 50px;
            background: rgba(56, 189, 248, 0.12);
            color: var(--text-accent);
            border: 1px solid rgba(56, 189, 248, 0.25);
        }

        @media (min-width: 768px) {
            .news-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (min-width: 992px) {
            .news-grid {
                grid-template-columns: repeat(3, 1fr);
            }
        }

        /* Security / trust */
        .trust-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 14px;
        }

        .trust-item {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            padding: 14px 16px;
            background: rgba(3, 7, 18, 0.5);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-sm);
            font-size: 0.84rem;
            color: var(--text-secondary);
            transition: all var(--transition-fast);
        }

        .trust-item:hover {
            border-color: var(--border-strong);
            color: var(--text-primary);
        }

        .trust-item i {
            color: var(--accent-cyan);
            font-size: 1rem;
            margin-top: 2px;
            flex-shrink: 0;
        }

        @media (min-width: 768px) {
            .trust-grid {
                grid-template-columns: repeat(4, 1fr);
            }
        }

        /* Quick answers */
        .qa-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 14px;
        }

        .qa-item {
            background: var(--bg-glass);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-sm);
            padding: 16px 18px;
            display: flex;
            gap: 12px;
            align-items: flex-start;
            backdrop-filter: blur(8px);
        }

        .qa-item .qa-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: rgba(56, 189, 248, 0.15);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-cyan);
            font-size: 0.75rem;
            font-weight: 600;
            margin-top: 2px;
        }

        .qa-item .qa-text {
            font-size: 0.86rem;
            color: var(--text-secondary);
            line-height: 1.55;
        }

        .qa-item .qa-text strong {
            color: var(--text-primary);
            font-weight: 600;
        }

        @media (min-width: 768px) {
            .qa-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        /* FAQ */
        .faq-wrap {
            max-width: 860px;
        }

        .accordion {
            --bs-accordion-bg: var(--bg-glass);
            --bs-accordion-border-color: var(--border-glass);
            --bs-accordion-color: var(--text-primary);
            --bs-accordion-btn-bg: transparent;
            --bs-accordion-btn-color: var(--text-primary);
            --bs-accordion-active-bg: rgba(56, 189, 248, 0.1);
            --bs-accordion-active-color: var(--text-primary);
            --bs-accordion-btn-focus-border-color: var(--border-strong);
            --bs-accordion-btn-focus-box-shadow: 0 0 0 3px rgba(56, 189, 248, 0.15);
        }

        .accordion-item {
            background: var(--bg-glass);
            border: 1px solid var(--border-glass) !important;
            border-radius: var(--radius-sm) !important;
            margin-bottom: 10px;
            overflow: hidden;
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
        }

        .accordion-button {
            font-size: 0.9rem;
            font-weight: 600;
            padding: 16px 20px;
            background: transparent;
            color: var(--text-primary);
        }

        .accordion-button::after {
            filter: brightness(0) invert(0.7);
        }

        .accordion-button:not(.collapsed) {
            color: var(--accent-cyan);
            box-shadow: none;
        }

        .accordion-body {
            font-size: 0.85rem;
            color: var(--text-secondary);
            line-height: 1.65;
            padding: 16px 20px 20px;
        }

        /* CTA section */
        .cta-section {
            background: var(--bg-glass);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-xl);
            padding: 40px 28px;
            text-align: center;
            position: relative;
            overflow: hidden;
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            box-shadow: var(--shadow-lg);
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: radial-gradient(circle at 50% 50%, rgba(37, 99, 235, 0.12), transparent 60%);
            pointer-events: none;
        }

        .cta-title {
            font-size: 1.6rem;
            font-weight: 750;
            color: var(--text-primary);
            margin-bottom: 10px;
            position: relative;
            z-index: 1;
        }

        .cta-desc {
            font-size: 0.95rem;
            color: var(--text-secondary);
            max-width: 560px;
            margin: 0 auto 22px;
            position: relative;
            z-index: 1;
        }

        .cta-form {
            max-width: 480px;
            margin: 0 auto;
            position: relative;
            z-index: 1;
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            justify-content: center;
        }

        .cta-form input {
            flex: 1 1 220px;
            padding: 12px 18px;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-strong);
            background: rgba(3, 7, 18, 0.7);
            color: var(--text-primary);
            font-size: 0.9rem;
            transition: all var(--transition-fast);
        }

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

        .cta-form input:focus {
            border-color: var(--accent-cyan);
            box-shadow: var(--shadow-glow-cyan);
            outline: none;
        }

        .btn-cta-submit {
            background: linear-gradient(135deg, var(--accent-blue), var(--accent-cyan));
            color: #FFFFFF;
            border: none;
            padding: 12px 28px;
            font-size: 0.9rem;
            font-weight: 600;
            border-radius: var(--radius-sm);
            box-shadow: var(--shadow-glow-blue);
            transition: all var(--transition-med);
            white-space: nowrap;
        }

        .btn-cta-submit:hover {
            box-shadow: var(--shadow-glow-deep);
            transform: translateY(-2px);
            color: #FFFFFF;
        }

        /* FAB */
        .fab-custom {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: 100;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: linear-gradient(135deg, #0B1A3A, #081229);
            border: 2px solid var(--border-strong);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-cyan);
            font-size: 1.3rem;
            box-shadow: var(--shadow-glow-cyan);
            transition: all var(--transition-med);
            cursor: pointer;
            text-decoration: none;
        }

        .fab-custom:hover {
            transform: scale(1.08);
            box-shadow: var(--shadow-glow-deep);
            color: var(--accent-cyan);
        }

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

        .fab-notification {
            position: absolute;
            top: -2px;
            right: -2px;
            width: 14px;
            height: 14px;
            border-radius: 50%;
            background: #EF4444;
            border: 2px solid #FFFFFF;
        }

        /* Footer */
        .site-footer {
            background: rgba(3, 7, 18, 0.85);
            border-top: 1px solid var(--border-subtle);
            padding: 48px 0 28px;
            position: relative;
            z-index: 1;
            margin-top: 24px;
        }

        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 14px;
        }

        .footer-brand .brand-text {
            font-size: 0.92rem;
            font-weight: 650;
            color: var(--text-primary);
            line-height: 1.3;
        }

        .footer-desc {
            font-size: 0.82rem;
            color: var(--text-secondary);
            line-height: 1.6;
            margin-bottom: 14px;
            max-width: 380px;
        }

        .footer-heading {
            font-size: 0.85rem;
            font-weight: 650;
            color: var(--text-primary);
            text-transform: uppercase;
            letter-spacing: 0.04em;
            margin-bottom: 12px;
        }

        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .footer-links a {
            font-size: 0.82rem;
            color: var(--text-secondary);
            transition: color var(--transition-fast);
        }

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

        .footer-links li {
            font-size: 0.82rem;
            color: var(--text-secondary);
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .footer-bottom {
            border-top: 1px solid var(--border-subtle);
            padding-top: 18px;
            margin-top: 28px;
            text-align: center;
            font-size: 0.75rem;
            color: var(--text-muted);
        }

        /* Responsive */
        @media (max-width: 767.98px) {
            .section {
                padding: 40px 0;
            }
            .hero-category {
                padding: 48px 0 40px;
            }
            .section-heading {
                font-size: 1.5rem;
            }
            .cta-title {
                font-size: 1.3rem;
            }
        }

        @media (max-width: 519.98px) {
            .hero-cta-group {
                flex-direction: column;
                align-items: stretch;
            }
            .btn-primary-glow,
            .btn-secondary-glass {
                justify-content: center;
            }
            .countdown-unit {
                min-width: 52px;
                padding: 8px 6px;
            }
            .countdown-number {
                font-size: 1.2rem;
            }
            .metric-card {
                padding: 18px 14px;
            }
            .metric-value {
                font-size: 1.4rem;
            }
        }

/* roulang page: category2 */
:root {
        --bg-primary: #030712;
        --bg-secondary: #081229;
        --bg-tertiary: #0B1A3A;
        --bg-glass: rgba(11, 26, 58, 0.72);
        --bg-glass-light: rgba(27, 52, 96, 0.45);
        --accent-blue: #2563EB;
        --accent-cyan: #38BDF8;
        --accent-holo: #60A5FA;
        --accent-glow-blue: rgba(37, 99, 235, 0.5);
        --accent-glow-cyan: rgba(56, 189, 248, 0.5);
        --text-primary: #F8FAFC;
        --text-secondary: #94A3B8;
        --text-muted: #64748B;
        --text-accent: #60A5FA;
        --border-glass: rgba(56, 189, 248, 0.18);
        --border-strong: rgba(56, 189, 248, 0.35);
        --border-subtle: rgba(148, 163, 184, 0.12);
        --success: #10B981;
        --warning: #F59E0B;
        --danger: #EF4444;
        --radius-xs: 4px;
        --radius-sm: 8px;
        --radius-md: 14px;
        --radius-lg: 22px;
        --radius-xl: 30px;
        --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.25);
        --shadow-md: 0 8px 28px rgba(0, 0, 0, 0.38);
        --shadow-lg: 0 18px 50px rgba(0, 0, 0, 0.5);
        --shadow-glow-blue: 0 0 20px rgba(37, 99, 235, 0.45);
        --shadow-glow-cyan: 0 0 20px rgba(56, 189, 248, 0.45);
        --shadow-glow-deep: 0 0 45px rgba(37, 99, 235, 0.28);
        --font-sans: 'Segoe UI', 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Be Vietnam Pro', 'Roboto', sans-serif;
        --transition-fast: 0.18s ease;
        --transition-med: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
        --nav-height: 72px;
    }

    html {
        scroll-behavior: smooth;
        scroll-padding-top: calc(var(--nav-height) + 16px);
    }

    body {
        font-family: var(--font-sans);
        background-color: var(--bg-primary);
        background-image:
            radial-gradient(ellipse at 15% 10%, rgba(37, 99, 235, 0.08) 0%, transparent 55%),
            radial-gradient(ellipse at 85% 35%, rgba(56, 189, 248, 0.05) 0%, transparent 50%),
            radial-gradient(ellipse at 50% 80%, rgba(11, 26, 58, 0.4) 0%, transparent 60%),
            linear-gradient(180deg, #030712 0%, #030D22 28%, #030712 72%, #050A18 100%);
        color: var(--text-primary);
        line-height: 1.6;
        min-height: 100vh;
        overflow-x: hidden;
        -webkit-font-smoothing: antialiased;
        -moz-osx-font-smoothing: grayscale;
    }

    body::before {
        content: '';
        position: fixed;
        inset: 0;
        background-image:
            linear-gradient(rgba(56, 189, 248, 0.02) 1px, transparent 1px),
            linear-gradient(90deg, rgba(56, 189, 248, 0.02) 1px, transparent 1px);
        background-size: 48px 48px;
        pointer-events: none;
        z-index: 0;
    }

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

    a:hover,
    a:focus-visible {
        color: var(--text-primary);
        text-decoration: none;
    }

    a:focus-visible,
    button:focus-visible,
    input:focus-visible,
    select:focus-visible,
    textarea:focus-visible {
        outline: 2px solid var(--accent-cyan);
        outline-offset: 3px;
        border-radius: var(--radius-xs);
    }

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

    .section {
        padding: 4rem 0;
        position: relative;
        z-index: 1;
    }

    .section-subtitle {
        color: var(--text-secondary);
        font-size: 1.02rem;
        line-height: 1.65;
        max-width: 720px;
    }

    .section-title {
        font-weight: 800;
        font-size: 1.9rem;
        line-height: 1.25;
        letter-spacing: -0.02em;
        margin-bottom: 0.75rem;
    }

    .text-gradient {
        background: linear-gradient(135deg, #60A5FA 0%, #38BDF8 45%, #22D3EE 100%);
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
        background-clip: text;
    }

    .text-glow {
        text-shadow: 0 0 22px rgba(56, 189, 248, 0.45);
    }

    .badge-soft {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        padding: 6px 14px;
        border-radius: 50px;
        font-size: 0.8rem;
        font-weight: 500;
        letter-spacing: 0.02em;
        color: var(--text-accent);
        background: rgba(56, 189, 248, 0.1);
        border: 1px solid rgba(56, 189, 248, 0.25);
        backdrop-filter: blur(6px);
        -webkit-backdrop-filter: blur(6px);
    }

    .badge-hot {
        background: rgba(239, 68, 68, 0.15);
        color: #FCA5A5;
        border-color: rgba(239, 68, 68, 0.35);
    }

    .badge-vip {
        background: rgba(245, 158, 11, 0.15);
        color: #FCD34D;
        border-color: rgba(245, 158, 11, 0.4);
    }

    .badge-new {
        background: rgba(16, 185, 129, 0.15);
        color: #6EE7B7;
        border-color: rgba(16, 185, 129, 0.35);
    }

    .badge-payment {
        display: inline-flex;
        align-items: center;
        padding: 8px 16px;
        border-radius: 50px;
        font-size: 0.85rem;
        font-weight: 600;
        letter-spacing: 0.01em;
        color: var(--text-primary);
        background: rgba(56, 189, 248, 0.08);
        border: 1px solid rgba(56, 189, 248, 0.22);
        backdrop-filter: blur(8px);
        -webkit-backdrop-filter: blur(8px);
        transition: background var(--transition-fast), border-color var(--transition-fast);
    }

    .badge-payment:hover {
        background: rgba(56, 189, 248, 0.15);
        border-color: rgba(56, 189, 248, 0.4);
    }

    .glass-card {
        background: var(--bg-glass);
        backdrop-filter: blur(14px);
        -webkit-backdrop-filter: blur(14px);
        border: 1px solid var(--border-glass);
        border-radius: var(--radius-lg);
        box-shadow: var(--shadow-md);
    }

    .container-fluid {
        max-width: 1320px;
        padding-left: 1.5rem;
        padding-right: 1.5rem;
    }

    /* ============ HEADER / NAV ============ */
    .site-header {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        height: var(--nav-height);
        z-index: 1030;
        background: rgba(3, 7, 18, 0.82);
        backdrop-filter: blur(18px);
        -webkit-backdrop-filter: blur(18px);
        border-bottom: 1px solid rgba(56, 189, 248, 0.12);
        box-shadow: 0 4px 24px rgba(0, 0, 0, 0.35);
    }

    .navbar {
        min-height: var(--nav-height);
    }

    .nav-logo-link {
        display: inline-flex;
        align-items: center;
        gap: 10px;
        color: var(--text-primary);
        text-decoration: none;
    }

    .nav-logo-link:hover {
        color: var(--text-primary);
    }

    .nav-logo-icon {
        width: 40px;
        height: 40px;
        display: inline-flex;
        align-items: center;
        justify-content: center;
        background: linear-gradient(135deg, rgba(37, 99, 235, 0.9), rgba(56, 189, 248, 0.7));
        border-radius: 12px;
        color: #fff;
        font-size: 1.1rem;
        box-shadow: var(--shadow-glow-blue);
    }

    .nav-logo-text {
        display: flex;
        flex-direction: column;
        font-weight: 800;
        font-size: 1rem;
        line-height: 1.1;
        color: var(--text-primary);
    }

    .nav-logo-text small {
        font-size: 0.65rem;
        font-weight: 500;
        color: var(--text-secondary);
        letter-spacing: 0.03em;
    }

    .navbar-nav-custom {
        gap: 0.5rem;
    }

    .navbar-nav-custom .nav-link {
        font-size: 0.9rem;
        font-weight: 500;
        color: var(--text-secondary);
        padding: 0.6rem 1rem !important;
        border-radius: 50px;
        transition: color var(--transition-fast), background var(--transition-fast);
    }

    .navbar-nav-custom .nav-link:hover {
        color: var(--text-primary);
        background: rgba(56, 189, 248, 0.08);
    }

    .navbar-nav-custom .nav-link.active {
        color: var(--text-primary);
        background: rgba(56, 189, 248, 0.12);
        border: 1px solid rgba(56, 189, 248, 0.25);
    }

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

    .btn-nav-login {
        font-size: 0.85rem;
        font-weight: 600;
        color: var(--text-secondary);
        border: 1px solid rgba(148, 163, 184, 0.3);
        border-radius: 50px;
        padding: 0.45rem 1.1rem;
        transition: all var(--transition-fast);
    }

    .btn-nav-login:hover {
        color: var(--text-primary);
        border-color: rgba(148, 163, 184, 0.6);
        background: rgba(148, 163, 184, 0.05);
    }

    .btn-nav-primary {
        font-size: 0.85rem;
        font-weight: 700;
        color: #fff;
        background: linear-gradient(135deg, #2563EB 0%, #38BDF8 100%);
        border: none;
        border-radius: 50px;
        padding: 0.5rem 1.2rem;
        box-shadow: var(--shadow-glow-blue);
        transition: transform var(--transition-fast), box-shadow var(--transition-fast);
    }

    .btn-nav-primary:hover {
        color: #fff;
        transform: translateY(-1px);
        box-shadow: 0 0 26px rgba(56, 189, 248, 0.6);
    }

    @media (max-width: 991.98px) {
        .navbar-collapse {
            background: rgba(3, 7, 18, 0.96);
            border-top: 1px solid rgba(56, 189, 248, 0.15);
            margin-top: 0.75rem;
            border-radius: var(--radius-md);
            padding: 1rem;
        }
        .nav-actions {
            margin-left: 0;
            margin-top: 0.75rem;
            flex-wrap: wrap;
        }
    }

    /* ============ BUTTONS ============ */
    .btn-primary-glow {
        background: linear-gradient(135deg, #2563EB 0%, #38BDF8 100%);
        color: #fff;
        font-weight: 700;
        border: none;
        border-radius: 50px;
        padding: 0.75rem 1.6rem;
        box-shadow: var(--shadow-glow-blue);
        transition: transform var(--transition-fast), box-shadow var(--transition-fast);
    }

    .btn-primary-glow:hover {
        color: #fff;
        transform: translateY(-2px);
        box-shadow: 0 0 30px rgba(56, 189, 248, 0.65);
    }

    .btn-outline-glass {
        background: rgba(56, 189, 248, 0.06);
        color: var(--text-primary);
        border: 1px solid rgba(56, 189, 248, 0.3);
        border-radius: 50px;
        padding: 0.75rem 1.6rem;
        font-weight: 600;
        transition: all var(--transition-fast);
    }

    .btn-outline-glass:hover {
        background: rgba(56, 189, 248, 0.12);
        border-color: rgba(56, 189, 248, 0.55);
        color: var(--text-primary);
    }

    .btn-glass {
        background: rgba(56, 189, 248, 0.1);
        color: var(--text-accent);
        border: 1px solid rgba(56, 189, 248, 0.25);
        border-radius: 50px;
        font-size: 0.85rem;
        font-weight: 600;
        padding: 0.4rem 1rem;
        transition: all var(--transition-fast);
    }

    .btn-glass:hover {
        background: rgba(56, 189, 248, 0.18);
        color: #fff;
    }

    /* ============ HERO ============ */
    .hero-category {
        padding-top: calc(var(--nav-height) + 3rem);
        padding-bottom: 3.5rem;
        position: relative;
        overflow: hidden;
    }

    .hero-category::before {
        content: '';
        position: absolute;
        inset: 0;
        background-image: linear-gradient(180deg, rgba(3, 7, 18, 0.55) 0%, rgba(3, 7, 18, 0.85) 100%);
        z-index: 0;
    }

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

    .recommend-panel {
        border-color: rgba(56, 189, 248, 0.3);
        box-shadow: var(--shadow-glow-deep);
    }

    /* ============ STATS STRIP ============ */
    .stats-strip {
        padding-top: 2rem;
        padding-bottom: 2rem;
    }

    .stat-value {
        font-size: 2rem;
        font-weight: 800;
        color: var(--text-primary);
    }

    .stat-label {
        font-size: 0.8rem;
        color: var(--text-secondary);
        text-transform: uppercase;
        letter-spacing: 0.05em;
    }

    /* ============ FEATURE CARD ============ */
    .feature-card {
        border-radius: var(--radius-md);
        border: 1px solid var(--border-glass);
        transition: transform var(--transition-fast), border-color var(--transition-fast), box-shadow var(--transition-fast);
    }

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

    .feature-icon {
        width: 48px;
        height: 48px;
        display: inline-flex;
        align-items: center;
        justify-content: center;
        background: rgba(56, 189, 248, 0.12);
        border: 1px solid rgba(56, 189, 248, 0.22);
        border-radius: 14px;
        font-size: 1.3rem;
        color: var(--accent-cyan);
    }

    /* ============ GAME CARD ============ */
    .game-card {
        border-radius: var(--radius-md);
        overflow: hidden;
        border: 1px solid var(--border-glass);
        transition: transform var(--transition-med), border-color var(--transition-med), box-shadow var(--transition-med);
    }

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

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

    /* ============ TABLE CUSTOM ============ */
    .table-custom {
        color: var(--text-primary);
        margin-bottom: 0;
    }

    .table-custom thead th {
        font-weight: 700;
        font-size: 0.9rem;
        color: var(--text-accent);
        border-bottom: 2px solid rgba(56, 189, 248, 0.3);
        padding: 0.75rem 1rem;
        white-space: nowrap;
    }

    .table-custom tbody td {
        border-color: rgba(148, 163, 184, 0.1);
        padding: 0.75rem 1rem;
        font-size: 0.9rem;
    }

    /* ============ STEP ITEM ============ */
    .step-item {
        display: flex;
        gap: 1rem;
        align-items: flex-start;
        background: var(--bg-glass-light);
        border: 1px solid var(--border-glass);
        border-radius: var(--radius-md);
        padding: 1.25rem;
        transition: all var(--transition-fast);
    }

    .step-item:hover {
        border-color: var(--border-strong);
        box-shadow: var(--shadow-glow-blue);
    }

    .step-number {
        flex: 0 0 44px;
        height: 44px;
        display: flex;
        align-items: center;
        justify-content: center;
        border-radius: 14px;
        background: linear-gradient(135deg, #2563EB, #38BDF8);
        color: #fff;
        font-weight: 800;
    }

    /* ============ POST CARD ============ */
    .post-card {
        border-radius: var(--radius-md);
        border: 1px solid var(--border-glass);
        transition: transform var(--transition-fast), border-color var(--transition-fast), box-shadow var(--transition-fast);
    }

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

    .post-card a.stretched-link {
        color: var(--text-primary);
    }

    .post-card a.stretched-link:hover {
        color: var(--accent-cyan);
    }

    /* ============ FAQ ============ */
    .accordion-custom .accordion-item {
        background: var(--bg-glass-light);
        border: 1px solid var(--border-glass);
        border-radius: var(--radius-md) !important;
        overflow: hidden;
        margin-bottom: 0.75rem;
    }

    .accordion-custom .accordion-button {
        background: transparent;
        color: var(--text-primary);
        font-weight: 600;
        padding: 1.1rem 1.25rem;
        border-radius: var(--radius-md) !important;
        box-shadow: none;
    }

    .accordion-custom .accordion-button:not(.collapsed) {
        background: rgba(56, 189, 248, 0.1);
        color: var(--text-primary);
        border-bottom: 1px solid rgba(56, 189, 248, 0.2);
    }

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

    .accordion-custom .accordion-body {
        padding: 1.1rem 1.25rem;
        color: var(--text-secondary);
        font-size: 0.95rem;
        line-height: 1.65;
    }

    /* ============ CTA ============ */
    .cta-section {
        padding-bottom: 5rem;
    }

    .cta-panel {
        border-color: rgba(56, 189, 248, 0.28);
        box-shadow: var(--shadow-glow-deep);
        background: linear-gradient(135deg, rgba(37, 99, 235, 0.15) 0%, rgba(11, 26, 58, 0.9) 100%);
    }

    .cta-form .form-control {
        background: rgba(3, 7, 18, 0.8);
        border: 1px solid rgba(56, 189, 248, 0.3);
        color: var(--text-primary);
        border-radius: 50px 0 0 50px;
        padding: 0.75rem 1.2rem;
    }

    .cta-form .form-control:focus {
        border-color: var(--accent-cyan);
        box-shadow: 0 0 0 3px rgba(56, 189, 248, 0.15);
    }

    .cta-form .btn {
        border-radius: 0 50px 50px 0;
        padding: 0.75rem 1.5rem;
    }

    /* ============ FOOTER ============ */
    .site-footer {
        position: relative;
        z-index: 1;
        background: rgba(3, 7, 18, 0.92);
        border-top: 1px solid rgba(56, 189, 248, 0.15);
        padding: 3rem 0 1.5rem;
        box-shadow: 0 -10px 40px rgba(0, 0, 0, 0.25);
    }

    .footer-brand {
        display: flex;
        align-items: center;
        gap: 10px;
        margin-bottom: 1.25rem;
    }

    .footer-brand .brand-text {
        font-weight: 800;
        font-size: 1rem;
        line-height: 1.2;
        color: var(--text-primary);
    }

    .footer-desc {
        color: var(--text-secondary);
        font-size: 0.9rem;
        line-height: 1.65;
        max-width: 420px;
    }

    .footer-heading {
        color: var(--text-primary);
        font-weight: 700;
        font-size: 0.9rem;
        letter-spacing: 0.04em;
        text-transform: uppercase;
        margin-bottom: 1rem;
    }

    .footer-links {
        list-style: none;
        padding-left: 0;
        margin-bottom: 0;
    }

    .footer-links li {
        margin-bottom: 0.55rem;
    }

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

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

    .footer-links .fa-check {
        color: var(--success);
    }

    .footer-bottom {
        border-top: 1px solid rgba(148, 163, 184, 0.12);
        margin-top: 2rem;
        padding-top: 1.25rem;
        display: flex;
        justify-content: space-between;
        flex-wrap: wrap;
        gap: 0.75rem;
        font-size: 0.8rem;
        color: var(--text-muted);
    }

    /* ============ FAB ============ */
    .fab-fixed {
        position: fixed;
        left: 16px;
        bottom: 96px;
        z-index: 1050;
        width: 56px;
        height: 56px;
        display: inline-flex;
        align-items: center;
        justify-content: center;
        border-radius: 50px;
        background: rgba(7, 7, 13, 0.82);
        backdrop-filter: blur(16px);
        -webkit-backdrop-filter: blur(16px);
        border: 2px solid transparent;
        background-image: linear-gradient(rgba(7, 7, 13, 0.82), rgba(7, 7, 13, 0.82)), linear-gradient(135deg, #A3E635, #06B6D4);
        background-origin: border-box;
        background-clip: padding-box, border-box;
        box-shadow: 0 0 20px rgba(6, 182, 212, 0.45);
        color: #fff;
        font-size: 1.3rem;
        opacity: 0.75;
        transition: all var(--transition-med);
        text-decoration: none;
    }

    .fab-fixed:hover {
        opacity: 1;
        transform: scale(1.08);
        box-shadow: 0 0 30px rgba(6, 182, 212, 0.65);
        color: #fff;
    }

    .fab-fixed:active {
        transform: scale(0.95);
        box-shadow: 0 0 18px rgba(236, 72, 153, 0.6);
    }

    .fab-noti {
        position: absolute;
        top: -2px;
        right: -2px;
        width: 12px;
        height: 12px;
        border-radius: 50%;
        background: #F43F5E;
        border: 2px solid #fff;
        animation: fabPulse 1.8s infinite;
    }

    @keyframes fabPulse {
        0% { box-shadow: 0 0 0 0 rgba(244, 63, 94, 0.7); }
        70% { box-shadow: 0 0 0 8px rgba(244, 63, 94, 0); }
        100% { box-shadow: 0 0 0 0 rgba(244, 63, 94, 0); }
    }

    /* ============ RESPONSIVE ============ */
    @media (max-width: 1024px) {
        .section { padding: 3rem 0; }
        .section-title { font-size: 1.6rem; }
        .hero-category { padding-top: calc(var(--nav-height) + 2rem); }
    }

    @media (max-width: 767.98px) {
        .section { padding: 2.5rem 0; }
        .section-title { font-size: 1.4rem; }
        .hero-category { padding-top: calc(var(--nav-height) + 1.5rem); }
        .btn-lg { padding: 0.65rem 1.2rem; font-size: 0.95rem; }
        .game-card-img { height: 150px; }
        .cta-form .form-control { border-radius: 50px; margin-bottom: 0.5rem; }
        .cta-form .btn { border-radius: 50px; width: 100%; }
        .footer-bottom { flex-direction: column; align-items: flex-start; }
        .fab-fixed { bottom: 80px; width: 52px; height: 52px; }
    }

    @media (max-width: 520px) {
        .nav-logo-text { font-size: 0.85rem; }
        .nav-logo-icon { width: 34px; height: 34px; font-size: 0.9rem; }
        .nav-actions { gap: 6px; }
        .btn-nav-login,
        .btn-nav-primary { font-size: 0.75rem; padding: 0.4rem 0.8rem; }
        .section-title { font-size: 1.25rem; }
        .stat-value { font-size: 1.5rem; }
        .hero-category { padding-top: calc(var(--nav-height) + 1rem); }
    }

/* roulang page: category3 */
:root {
            --bg-primary: #030712;
            --bg-secondary: #081229;
            --bg-tertiary: #0B1A3A;
            --bg-glass: rgba(11, 26, 58, 0.72);
            --bg-glass-light: rgba(27, 52, 96, 0.45);
            --accent-blue: #2563EB;
            --accent-cyan: #38BDF8;
            --accent-holo: #60A5FA;
            --accent-glow-blue: rgba(37, 99, 235, 0.5);
            --accent-glow-cyan: rgba(56, 189, 248, 0.5);
            --text-primary: #F8FAFC;
            --text-secondary: #94A3B8;
            --text-muted: #64748B;
            --text-accent: #60A5FA;
            --border-glass: rgba(56, 189, 248, 0.18);
            --border-strong: rgba(56, 189, 248, 0.35);
            --border-subtle: rgba(148, 163, 184, 0.12);
            --success: #10B981;
            --warning: #F59E0B;
            --danger: #EF4444;
            --radius-xs: 4px;
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 22px;
            --radius-xl: 30px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.25);
            --shadow-md: 0 8px 28px rgba(0, 0, 0, 0.38);
            --shadow-lg: 0 18px 50px rgba(0, 0, 0, 0.5);
            --shadow-glow-blue: 0 0 20px rgba(37, 99, 235, 0.45);
            --shadow-glow-cyan: 0 0 20px rgba(56, 189, 248, 0.45);
            --shadow-glow-deep: 0 0 45px rgba(37, 99, 235, 0.28);
            --font-sans: 'Segoe UI', 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Be Vietnam Pro', 'Roboto', sans-serif;
            --transition-fast: 0.18s ease;
            --transition-med: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
            --nav-height: 72px;
        }

        html {
            scroll-behavior: smooth;
            scroll-padding-top: calc(var(--nav-height) + 16px);
        }

        body {
            font-family: var(--font-sans);
            background-color: var(--bg-primary);
            background-image:
                radial-gradient(ellipse at 15% 10%, rgba(37, 99, 235, 0.08) 0%, transparent 55%),
                radial-gradient(ellipse at 85% 35%, rgba(56, 189, 248, 0.05) 0%, transparent 50%),
                radial-gradient(ellipse at 50% 80%, rgba(11, 26, 58, 0.4) 0%, transparent 60%),
                linear-gradient(180deg, #030712 0%, #030D22 28%, #030712 72%, #050A18 100%);
            color: var(--text-primary);
            line-height: 1.6;
            min-height: 100vh;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body::before {
            content: '';
            position: fixed;
            inset: 0;
            background-image:
                linear-gradient(rgba(56, 189, 248, 0.02) 1px, transparent 1px),
                linear-gradient(90deg, rgba(56, 189, 248, 0.02) 1px, transparent 1px);
            background-size: 48px 48px;
            pointer-events: none;
            z-index: 0;
        }

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

        a:hover,
        a:focus-visible {
            color: var(--text-primary);
            text-decoration: none;
        }

        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--accent-cyan);
            outline-offset: 3px;
            border-radius: var(--radius-xs);
        }

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

        .section-subtitle {
            color: var(--text-secondary);
            font-size: 1.02rem;
            line-height: 1.6;
            max-width: 720px;
        }

        /* ============ UTILITY ============ */
        .text-gradient {
            background: linear-gradient(135deg, #60A5FA 0%, #38BDF8 45%, #22D3EE 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .text-glow {
            text-shadow: 0 0 22px rgba(56, 189, 248, 0.45);
        }

        .badge-soft {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 14px;
            border-radius: 50px;
            font-size: 0.8rem;
            font-weight: 500;
            letter-spacing: 0.02em;
            color: var(--text-accent);
            background: rgba(56, 189, 248, 0.1);
            border: 1px solid rgba(56, 189, 248, 0.25);
            backdrop-filter: blur(6px);
            -webkit-backdrop-filter: blur(6px);
        }

        .badge-hot {
            background: rgba(239, 68, 68, 0.15);
            color: #FCA5A5;
            border-color: rgba(239, 68, 68, 0.35);
        }

        .badge-vip {
            background: rgba(245, 158, 11, 0.15);
            color: #FCD34D;
            border-color: rgba(245, 158, 11, 0.4);
        }

        .badge-new {
            background: rgba(16, 185, 129, 0.15);
            color: #6EE7B7;
            border-color: rgba(16, 185, 129, 0.35);
        }

        /* ============ CONTAINER ============ */
        .container-fluid {
            position: relative;
            z-index: 1;
            max-width: 1280px;
            padding-left: 24px;
            padding-right: 24px;
        }

        /* ============ NAVIGATION ============ */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--nav-height);
            background: rgba(3, 7, 18, 0.82);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(56, 189, 248, 0.12);
            transition: background var(--transition-med), box-shadow var(--transition-med);
        }

        .site-header.scrolled {
            background: rgba(3, 7, 18, 0.95);
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.45);
        }

        .site-header .navbar {
            padding: 0;
            height: 100%;
            min-height: var(--nav-height);
        }

        .site-header .container-fluid {
            height: 100%;
        }

        .nav-logo-link {
            display: flex;
            align-items: center;
            gap: 10px;
            color: var(--text-primary);
            text-decoration: none;
            min-width: 0;
        }

        .nav-logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: linear-gradient(135deg, rgba(37, 99, 235, 0.2), rgba(56, 189, 248, 0.18));
            border: 1px solid rgba(56, 189, 248, 0.3);
            color: var(--accent-cyan);
            font-size: 1.15rem;
            flex-shrink: 0;
        }

        .nav-logo-text {
            display: flex;
            flex-direction: column;
            line-height: 1.15;
            font-weight: 700;
            font-size: 1rem;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .nav-logo-text small {
            font-size: 0.7rem;
            font-weight: 400;
            color: var(--text-secondary);
            letter-spacing: 0.02em;
        }

        .navbar-nav-custom {
            gap: 4px;
        }

        .navbar-nav-custom .nav-link {
            color: var(--text-secondary);
            font-size: 0.88rem;
            font-weight: 500;
            padding: 8px 14px;
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .navbar-nav-custom .nav-link:hover,
        .navbar-nav-custom .nav-link:focus-visible {
            color: var(--text-primary);
            background: rgba(56, 189, 248, 0.08);
        }

        .navbar-nav-custom .nav-link.active {
            color: var(--accent-cyan);
            background: rgba(56, 189, 248, 0.12);
            border: 1px solid rgba(56, 189, 248, 0.22);
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-shrink: 0;
        }

        .btn-nav-login {
            color: var(--accent-cyan);
            background: transparent;
            border: 1px solid rgba(56, 189, 248, 0.3);
            border-radius: var(--radius-sm);
            padding: 7px 16px;
            font-size: 0.85rem;
            font-weight: 500;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .btn-nav-login:hover,
        .btn-nav-login:focus-visible {
            background: rgba(56, 189, 248, 0.1);
            border-color: rgba(56, 189, 248, 0.5);
            color: var(--text-primary);
        }

        .btn-nav-primary {
            background: linear-gradient(135deg, #2563EB, #38BDF8);
            color: #fff;
            border: none;
            border-radius: var(--radius-sm);
            padding: 7px 18px;
            font-size: 0.85rem;
            font-weight: 600;
            box-shadow: 0 0 16px rgba(37, 99, 235, 0.35);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .btn-nav-primary:hover,
        .btn-nav-primary:focus-visible {
            box-shadow: 0 0 24px rgba(56, 189, 248, 0.55);
            transform: translateY(-1px);
            color: #fff;
        }

        .navbar-toggler {
            border: 1px solid rgba(56, 189, 248, 0.25);
            border-radius: var(--radius-sm);
            padding: 8px 10px;
        }

        .navbar-toggler:focus {
            box-shadow: 0 0 0 3px rgba(56, 189, 248, 0.3);
        }

        .navbar-toggler-icon {
            background-image: none;
            position: relative;
        }

        .navbar-toggler-icon::before {
            content: '\f0c9';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            color: var(--accent-cyan);
            font-size: 1.3rem;
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
        }

        /* ============ HERO ============ */
        .category-hero {
            padding: calc(var(--nav-height) + 40px) 0 50px;
            position: relative;
            background-image: url('/assets/images/f65ff8fbef693089.jpg');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            min-height: 480px;
            display: flex;
            align-items: center;
            border-bottom: 1px solid rgba(56, 189, 248, 0.12);
        }

        .category-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(3, 7, 18, 0.82) 0%, rgba(3, 13, 34, 0.9) 55%, rgba(3, 7, 18, 0.97) 100%);
            z-index: 1;
        }

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

        .hero-content {
            max-width: 780px;
            margin: 0 auto;
            text-align: center;
        }

        .hero-eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 16px;
            border-radius: 50px;
            background: rgba(56, 189, 248, 0.1);
            border: 1px solid rgba(56, 189, 248, 0.25);
            color: var(--accent-cyan);
            font-size: 0.78rem;
            font-weight: 600;
            letter-spacing: 0.04em;
            margin-bottom: 16px;
        }

        .hero-title {
            font-size: clamp(1.8rem, 4vw, 2.9rem);
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 16px;
            letter-spacing: -0.02em;
        }

        .hero-description {
            color: var(--text-secondary);
            font-size: 1.05rem;
            line-height: 1.65;
            max-width: 660px;
            margin: 0 auto 24px;
        }

        .hero-chips {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            justify-content: center;
            margin-bottom: 22px;
        }

        .hero-chip {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            padding: 6px 14px;
            border-radius: 50px;
            background: rgba(27, 52, 96, 0.55);
            border: 1px solid rgba(148, 163, 184, 0.18);
            color: var(--text-secondary);
            font-size: 0.78rem;
            font-weight: 500;
            transition: all var(--transition-fast);
            cursor: default;
        }

        .hero-chip:hover {
            background: rgba(56, 189, 248, 0.12);
            border-color: rgba(56, 189, 248, 0.3);
            color: var(--accent-cyan);
        }

        .hero-search {
            max-width: 520px;
            margin: 0 auto 22px;
            position: relative;
        }

        .hero-search input {
            width: 100%;
            padding: 13px 20px 13px 46px;
            border-radius: 50px;
            background: rgba(11, 26, 58, 0.75);
            border: 1px solid rgba(56, 189, 248, 0.22);
            color: var(--text-primary);
            font-size: 0.92rem;
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            transition: all var(--transition-fast);
        }

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

        .hero-search input:focus {
            outline: none;
            border-color: rgba(56, 189, 248, 0.5);
            box-shadow: 0 0 20px rgba(56, 189, 248, 0.25);
        }

        .hero-search .search-icon {
            position: absolute;
            left: 18px;
            top: 50%;
            transform: translateY(-50%);
            color: var(--text-muted);
            font-size: 0.95rem;
        }

        .hero-actions {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            justify-content: center;
        }

        .btn-hero-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: linear-gradient(135deg, #2563EB, #38BDF8);
            color: #fff;
            border: none;
            border-radius: 50px;
            padding: 12px 28px;
            font-size: 0.95rem;
            font-weight: 700;
            box-shadow: 0 0 24px rgba(37, 99, 235, 0.4);
            transition: all var(--transition-fast);
        }

        .btn-hero-primary:hover,
        .btn-hero-primary:focus-visible {
            box-shadow: 0 0 36px rgba(56, 189, 248, 0.6);
            transform: translateY(-2px);
            color: #fff;
        }

        .btn-hero-secondary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(56, 189, 248, 0.08);
            color: var(--text-primary);
            border: 1px solid rgba(56, 189, 248, 0.3);
            border-radius: 50px;
            padding: 12px 28px;
            font-size: 0.95rem;
            font-weight: 600;
            transition: all var(--transition-fast);
        }

        .btn-hero-secondary:hover,
        .btn-hero-secondary:focus-visible {
            background: rgba(56, 189, 248, 0.16);
            border-color: rgba(56, 189, 248, 0.5);
            color: var(--text-primary);
        }

        /* ============ SECTION BASE ============ */
        .section {
            padding: 60px 0;
            position: relative;
        }

        .section-tight {
            padding: 42px 0;
        }

        .section-dark {
            background: rgba(8, 18, 41, 0.5);
            border-top: 1px solid rgba(56, 189, 248, 0.08);
            border-bottom: 1px solid rgba(56, 189, 248, 0.08);
        }

        .section-heading {
            font-size: clamp(1.4rem, 2.5vw, 1.9rem);
            font-weight: 750;
            letter-spacing: -0.015em;
            margin-bottom: 10px;
            line-height: 1.3;
        }

        /* ============ METRICS BOARD ============ */
        .metrics-strip {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
            margin-top: 32px;
        }

        .metric-card {
            background: var(--bg-glass);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-md);
            padding: 22px 20px;
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            transition: all var(--transition-fast);
        }

        .metric-card:hover {
            border-color: var(--border-strong);
            box-shadow: var(--shadow-glow-cyan);
        }

        .metric-icon {
            font-size: 1.4rem;
            color: var(--accent-cyan);
            margin-bottom: 8px;
        }

        .metric-value {
            font-size: 1.65rem;
            font-weight: 800;
            color: var(--text-primary);
            line-height: 1.2;
            margin-bottom: 4px;
        }

        .metric-label {
            font-size: 0.82rem;
            color: var(--text-secondary);
            font-weight: 500;
        }

        /* ============ SERVICE MATRIX ============ */
        .matrix-layout {
            display: grid;
            grid-template-columns: 1fr 1.2fr;
            gap: 48px;
            align-items: center;
        }

        .matrix-text-side .section-heading {
            text-align: left;
        }

        .matrix-desc {
            color: var(--text-secondary);
            line-height: 1.65;
            margin-bottom: 20px;
            font-size: 0.98rem;
        }

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

        .matrix-list li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            color: var(--text-secondary);
            font-size: 0.92rem;
            line-height: 1.55;
        }

        .matrix-list li i {
            color: var(--success);
            font-size: 0.9rem;
            margin-top: 4px;
            flex-shrink: 0;
        }

        .matrix-cards {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 14px;
        }

        .matrix-item {
            background: var(--bg-glass);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-md);
            padding: 20px 18px;
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            transition: all var(--transition-med);
        }

        .matrix-item:hover {
            border-color: var(--border-strong);
            transform: translateY(-3px);
            box-shadow: var(--shadow-md);
        }

        .matrix-item-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 42px;
            height: 42px;
            border-radius: 10px;
            background: rgba(37, 99, 235, 0.15);
            border: 1px solid rgba(56, 189, 248, 0.28);
            color: var(--accent-cyan);
            font-size: 1.1rem;
            margin-bottom: 12px;
        }

        .matrix-item-title {
            font-size: 0.98rem;
            font-weight: 650;
            color: var(--text-primary);
            margin-bottom: 8px;
        }

        .matrix-item-desc {
            font-size: 0.85rem;
            color: var(--text-secondary);
            line-height: 1.55;
            margin: 0;
        }

        /* ============ COMPARE ============ */
        .compare-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 16px;
            margin-top: 28px;
        }

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

        .compare-card:hover {
            border-color: var(--border-strong);
            box-shadow: var(--shadow-glow-blue);
        }

        .compare-card-header {
            padding: 16px 18px;
            background: rgba(37, 99, 235, 0.12);
            border-bottom: 1px solid rgba(56, 189, 248, 0.12);
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .compare-card-header h3 {
            font-size: 1rem;
            font-weight: 650;
            margin: 0;
            color: var(--text-primary);
        }

        .compare-card-body {
            padding: 18px;
        }

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

        .compare-card-body ul li {
            display: flex;
            align-items: flex-start;
            gap: 8px;
            font-size: 0.86rem;
            color: var(--text-secondary);
            line-height: 1.5;
        }

        .compare-card-body ul li i {
            color: var(--success);
            font-size: 0.8rem;
            margin-top: 3px;
            flex-shrink: 0;
        }

        /* ============ TIMELINE ============ */
        .timeline-strip {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
            margin-top: 28px;
            position: relative;
        }

        .timeline-strip::before {
            content: '';
            position: absolute;
            top: 24px;
            left: 0;
            right: 0;
            height: 2px;
            background: linear-gradient(90deg, rgba(37, 99, 235, 0.15), rgba(56, 189, 248, 0.35), rgba(37, 99, 235, 0.15));
            z-index: 0;
        }

        .timeline-item {
            text-align: center;
            position: relative;
            z-index: 1;
            padding: 0 10px;
        }

        .timeline-dot {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--bg-tertiary);
            border: 2px solid var(--accent-cyan);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 12px;
            color: var(--accent-cyan);
            font-size: 1.1rem;
            box-shadow: 0 0 16px rgba(56, 189, 248, 0.35);
        }

        .timeline-step {
            font-size: 0.72rem;
            font-weight: 700;
            letter-spacing: 0.08em;
            color: var(--accent-cyan);
            text-transform: uppercase;
            display: block;
            margin-bottom: 4px;
        }

        .timeline-title {
            font-size: 0.95rem;
            font-weight: 650;
            color: var(--text-primary);
            margin-bottom: 6px;
        }

        .timeline-desc {
            font-size: 0.82rem;
            color: var(--text-secondary);
            line-height: 1.5;
            margin: 0;
        }

        /* ============ NEWS LIST ============ */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 16px;
            margin-top: 28px;
        }

        .news-card-link {
            display: block;
            text-decoration: none;
            color: inherit;
        }

        .news-card {
            background: var(--bg-glass);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-md);
            padding: 20px 18px;
            height: 100%;
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            transition: all var(--transition-med);
            position: relative;
        }

        .news-card:hover {
            border-color: var(--border-strong);
            transform: translateY(-3px);
            box-shadow: var(--shadow-glow-blue);
        }

        .news-card-meta {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
            margin-bottom: 10px;
        }

        .news-card-title {
            font-size: 1rem;
            font-weight: 650;
            color: var(--text-primary);
            line-height: 1.4;
            margin-bottom: 8px;
        }

        .news-card-excerpt {
            font-size: 0.85rem;
            color: var(--text-secondary);
            line-height: 1.55;
            margin: 0;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-empty {
            text-align: center;
            padding: 30px 20px;
            background: var(--bg-glass);
            border: 1px dashed rgba(56, 189, 248, 0.25);
            border-radius: var(--radius-md);
            color: var(--text-secondary);
            font-size: 0.92rem;
            margin-top: 28px;
        }

        /* ============ TRUST ============ */
        .trust-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
            margin-top: 28px;
        }

        .trust-item {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            padding: 18px 16px;
            background: rgba(56, 189, 248, 0.06);
            border: 1px solid rgba(56, 189, 248, 0.12);
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
        }

        .trust-item:hover {
            background: rgba(56, 189, 248, 0.1);
            border-color: rgba(56, 189, 248, 0.28);
        }

        .trust-icon {
            font-size: 1.3rem;
            color: var(--accent-cyan);
            flex-shrink: 0;
            margin-top: 2px;
        }

        .trust-text h4 {
            font-size: 0.92rem;
            font-weight: 650;
            color: var(--text-primary);
            margin-bottom: 4px;
        }

        .trust-text p {
            font-size: 0.82rem;
            color: var(--text-secondary);
            line-height: 1.5;
            margin: 0;
        }

        /* ============ FAQ ============ */
        .faq-list {
            max-width: 800px;
            margin: 28px auto 0;
        }

        .accordion-item-custom {
            background: var(--bg-glass);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            overflow: hidden;
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            transition: all var(--transition-fast);
        }

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

        .accordion-button-custom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            width: 100%;
            padding: 16px 18px;
            background: transparent;
            border: none;
            color: var(--text-primary);
            font-size: 0.95rem;
            font-weight: 600;
            text-align: left;
            cursor: pointer;
            transition: all var(--transition-fast);
        }

        .accordion-button-custom:hover {
            background: rgba(56, 189, 248, 0.06);
        }

        .accordion-button-custom .fa-minus,
        .accordion-button-custom .fa-plus {
            color: var(--accent-cyan);
            font-size: 0.85rem;
            flex-shrink: 0;
            transition: transform var(--transition-med);
        }

        .accordion-button-custom.collapsed .fa-minus {
            display: none;
        }

        .accordion-button-custom:not(.collapsed) .fa-plus {
            display: none;
        }

        .accordion-body-custom {
            padding: 0 18px 18px;
            color: var(--text-secondary);
            font-size: 0.88rem;
            line-height: 1.65;
            border-top: 1px solid rgba(56, 189, 248, 0.1);
            padding-top: 14px;
            margin-top: 4px;
        }

        /* ============ CTA SECTION ============ */
        .cta-panel {
            background: linear-gradient(135deg, rgba(37, 99, 235, 0.22), rgba(56, 189, 248, 0.12));
            border: 1px solid rgba(56, 189, 248, 0.3);
            border-radius: var(--radius-xl);
            padding: 48px 36px;
            text-align: center;
            box-shadow: var(--shadow-glow-deep);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            position: relative;
            overflow: hidden;
        }

        .cta-panel::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at center, rgba(56, 189, 248, 0.15) 0%, transparent 70%);
            pointer-events: none;
        }

        .cta-panel h2 {
            font-size: clamp(1.4rem, 2.5vw, 1.9rem);
            font-weight: 750;
            color: var(--text-primary);
            margin-bottom: 12px;
            position: relative;
            z-index: 1;
        }

        .cta-panel p {
            color: var(--text-secondary);
            font-size: 0.98rem;
            max-width: 560px;
            margin: 0 auto 24px;
            position: relative;
            z-index: 1;
            line-height: 1.6;
        }

        .cta-actions {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            justify-content: center;
            position: relative;
            z-index: 1;
        }

        .btn-cta-glow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: linear-gradient(135deg, #2563EB, #38BDF8);
            color: #fff;
            border: none;
            border-radius: 50px;
            padding: 13px 30px;
            font-size: 0.98rem;
            font-weight: 700;
            box-shadow: 0 0 30px rgba(37, 99, 235, 0.5);
            transition: all var(--transition-fast);
        }

        .btn-cta-glow:hover,
        .btn-cta-glow:focus-visible {
            box-shadow: 0 0 45px rgba(56, 189, 248, 0.7);
            transform: translateY(-2px);
            color: #fff;
        }

        .btn-cta-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            color: var(--text-primary);
            border: 1px solid rgba(56, 189, 248, 0.4);
            border-radius: 50px;
            padding: 13px 30px;
            font-size: 0.98rem;
            font-weight: 600;
            transition: all var(--transition-fast);
        }

        .btn-cta-outline:hover,
        .btn-cta-outline:focus-visible {
            background: rgba(56, 189, 248, 0.12);
            border-color: rgba(56, 189, 248, 0.6);
            color: var(--text-primary);
        }

        /* ============ FAB ============ */
        .fab-support {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: 50;
            width: 56px;
            height: 56px;
            border-radius: 18px;
            background: rgba(7, 7, 13, 0.82);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            border: 2px solid transparent;
            background-clip: padding-box;
            position: relative;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-cyan);
            font-size: 1.3rem;
            box-shadow: 0 0 20px rgba(6, 182, 212, 0.45);
            cursor: pointer;
            transition: all var(--transition-med);
            border-image: linear-gradient(135deg, #A3E635, #06B6D4, #F43F5E) 1;
            animation: fabPulse 2.8s ease-in-out infinite;
        }

        .fab-support::before {
            content: '';
            position: absolute;
            inset: -2px;
            border-radius: 20px;
            background: linear-gradient(135deg, #A3E635, #06B6D4, #F43F5E);
            z-index: -1;
            opacity: 0.7;
        }

        .fab-support:hover {
            transform: scale(1.1);
            box-shadow: 0 0 32px rgba(6, 182, 212, 0.65);
        }

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

        .fab-badge {
            position: absolute;
            top: -4px;
            right: -4px;
            width: 14px;
            height: 14px;
            background: #EF4444;
            border-radius: 50%;
            border: 2px solid #fff;
            animation: fabBadge 1.4s ease-in-out infinite;
        }

        @keyframes fabPulse {
            0%, 100% {
                box-shadow: 0 0 16px rgba(6, 182, 212, 0.35);
            }
            50% {
                box-shadow: 0 0 28px rgba(6, 182, 212, 0.6);
            }
        }

        @keyframes fabBadge {
            0%, 100% {
                opacity: 1;
                transform: scale(1);
            }
            50% {
                opacity: 0.6;
                transform: scale(1.2);
            }
        }

        /* ============ FOOTER ============ */
        .site-footer {
            background: rgba(3, 7, 18, 0.95);
            border-top: 1px solid rgba(56, 189, 248, 0.12);
            padding: 48px 0 28px;
            position: relative;
            z-index: 1;
        }

        .site-footer .container-fluid {
            max-width: 1280px;
        }

        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 14px;
        }

        .footer-brand .nav-logo-icon {
            width: 32px;
            height: 32px;
            font-size: 0.95rem;
            border-radius: 8px;
        }

        .footer-brand .brand-text {
            font-size: 0.92rem;
            font-weight: 650;
            color: var(--text-primary);
            line-height: 1.35;
            max-width: 280px;
        }

        .footer-desc {
            color: var(--text-secondary);
            font-size: 0.85rem;
            line-height: 1.65;
            margin-bottom: 16px;
            max-width: 360px;
        }

        .footer-heading {
            font-size: 0.88rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 14px;
            letter-spacing: 0.02em;
        }

        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .footer-links a {
            color: var(--text-secondary);
            font-size: 0.85rem;
            transition: color var(--transition-fast);
        }

        .footer-links a:hover,
        .footer-links a:focus-visible {
            color: var(--accent-cyan);
        }

        .footer-links li {
            color: var(--text-secondary);
            font-size: 0.85rem;
            line-height: 1.5;
        }

        .footer-bottom {
            margin-top: 28px;
            padding-top: 18px;
            border-top: 1px solid rgba(148, 163, 184, 0.1);
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            font-size: 0.78rem;
            color: var(--text-muted);
        }

        .footer-bottom a {
            color: var(--text-muted);
        }

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

        /* ============ RESPONSIVE ============ */
        @media (max-width: 1024px) {
            .metrics-strip {
                grid-template-columns: repeat(2, 1fr);
            }

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

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

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

            .timeline-strip {
                grid-template-columns: repeat(2, 1fr);
                gap: 28px;
            }

            .timeline-strip::before {
                display: none;
            }
        }

        @media (max-width: 768px) {
            .container-fluid {
                padding-left: 16px;
                padding-right: 16px;
            }

            .site-header {
                height: auto;
                min-height: 64px;
            }

            .site-header .navbar {
                min-height: 64px;
                padding: 8px 0;
            }

            .nav-logo-text {
                font-size: 0.9rem;
            }

            .nav-logo-text small {
                font-size: 0.65rem;
            }

            .navbar-collapse {
                background: rgba(3, 7, 18, 0.97);
                border-radius: 12px;
                border: 1px solid rgba(56, 189, 248, 0.15);
                padding: 14px;
                margin-top: 8px;
            }

            .navbar-nav-custom {
                gap: 2px;
            }

            .navbar-nav-custom .nav-link {
                padding: 10px 14px;
                font-size: 0.9rem;
            }

            .nav-actions {
                margin-top: 10px;
                gap: 6px;
                flex-wrap: wrap;
            }

            .btn-nav-login,
            .btn-nav-primary {
                padding: 8px 14px;
                font-size: 0.8rem;
                flex: 1;
                text-align: center;
                justify-content: center;
            }

            .category-hero {
                min-height: 420px;
                padding: 80px 0 40px;
            }

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

            .hero-description {
                font-size: 0.92rem;
            }

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

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

            .section {
                padding: 42px 0;
            }

            .section-heading {
                font-size: 1.35rem;
            }

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

            .matrix-cards {
                grid-template-columns: 1fr;
            }

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

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

            .metrics-strip {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }

            .metric-card {
                padding: 16px;
            }

            .metric-value {
                font-size: 1.3rem;
            }

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

            .cta-panel {
                padding: 32px 20px;
            }

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

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

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

        @media (max-width: 520px) {
            .metrics-strip {
                grid-template-columns: 1fr;
            }

            .timeline-strip {
                grid-template-columns: 1fr;
            }

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

            .hero-chips {
                display: none;
            }

            .hero-search {
                max-width: 100%;
            }
        }

/* roulang page: category4 */
:root {
            --bg-primary: #030712;
            --bg-secondary: #081229;
            --bg-tertiary: #0B1A3A;
            --bg-glass: rgba(11, 26, 58, 0.72);
            --bg-glass-light: rgba(27, 52, 96, 0.45);
            --accent-blue: #2563EB;
            --accent-cyan: #38BDF8;
            --accent-holo: #60A5FA;
            --accent-glow-blue: rgba(37, 99, 235, 0.5);
            --accent-glow-cyan: rgba(56, 189, 248, 0.5);
            --text-primary: #F8FAFC;
            --text-secondary: #94A3B8;
            --text-muted: #64748B;
            --text-accent: #60A5FA;
            --border-glass: rgba(56, 189, 248, 0.18);
            --border-strong: rgba(56, 189, 248, 0.35);
            --border-subtle: rgba(148, 163, 184, 0.12);
            --success: #10B981;
            --warning: #F59E0B;
            --danger: #EF4444;
            --radius-xs: 4px;
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 22px;
            --radius-xl: 30px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.25);
            --shadow-md: 0 8px 28px rgba(0, 0, 0, 0.38);
            --shadow-lg: 0 18px 50px rgba(0, 0, 0, 0.5);
            --shadow-glow-blue: 0 0 20px rgba(37, 99, 235, 0.45);
            --shadow-glow-cyan: 0 0 20px rgba(56, 189, 248, 0.45);
            --shadow-glow-deep: 0 0 45px rgba(37, 99, 235, 0.28);
            --font-sans: 'Segoe UI', 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Be Vietnam Pro', 'Roboto', sans-serif;
            --transition-fast: 0.18s ease;
            --transition-med: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
            --nav-height: 72px;
        }

        html {
            scroll-behavior: smooth;
            scroll-padding-top: calc(var(--nav-height) + 16px);
        }

        body {
            font-family: var(--font-sans);
            background-color: var(--bg-primary);
            background-image:
                radial-gradient(ellipse at 15% 10%, rgba(37, 99, 235, 0.08) 0%, transparent 55%),
                radial-gradient(ellipse at 85% 35%, rgba(56, 189, 248, 0.05) 0%, transparent 50%),
                radial-gradient(ellipse at 50% 80%, rgba(11, 26, 58, 0.4) 0%, transparent 60%),
                linear-gradient(180deg, #030712 0%, #030D22 28%, #030712 72%, #050A18 100%);
            color: var(--text-primary);
            line-height: 1.6;
            min-height: 100vh;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body::before {
            content: '';
            position: fixed;
            inset: 0;
            background-image:
                linear-gradient(rgba(56, 189, 248, 0.02) 1px, transparent 1px),
                linear-gradient(90deg, rgba(56, 189, 248, 0.02) 1px, transparent 1px);
            background-size: 48px 48px;
            pointer-events: none;
            z-index: 0;
        }

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

        a:hover, a:focus-visible {
            color: var(--text-primary);
            text-decoration: none;
        }

        a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible {
            outline: 2px solid var(--accent-cyan);
            outline-offset: 3px;
            border-radius: var(--radius-xs);
        }

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

        .section-subtitle {
            color: var(--text-secondary);
            font-size: 1.02rem;
            line-height: 1.6;
            max-width: 720px;
        }

        /* ============ UTILITY ============ */
        .text-gradient {
            background: linear-gradient(135deg, #60A5FA 0%, #38BDF8 45%, #22D3EE 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .text-glow {
            text-shadow: 0 0 22px rgba(56, 189, 248, 0.45);
        }

        .badge-soft {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 14px;
            border-radius: 50px;
            font-size: 0.8rem;
            font-weight: 500;
            letter-spacing: 0.02em;
            color: var(--text-accent);
            background: rgba(56, 189, 248, 0.1);
            border: 1px solid rgba(56, 189, 248, 0.25);
            backdrop-filter: blur(6px);
            -webkit-backdrop-filter: blur(6px);
        }

        .badge-hot {
            background: rgba(239, 68, 68, 0.15);
            color: #FCA5A5;
            border-color: rgba(239, 68, 68, 0.35);
        }

        .badge-vip {
            background: rgba(245, 158, 11, 0.15);
            color: #FCD34D;
            border-color: rgba(245, 158, 11, 0.4);
        }

        .badge-new {
            background: rgba(16, 185, 129, 0.15);
            color: #6EE7B7;
            border-color: rgba(16, 185, 129, 0.35);
        }

        /* ============ CONTAINER ============ */
        .container-fluid {
            max-width: 1280px;
            padding-left: 24px;
            padding-right: 24px;
        }

        /* ============ HEADER / NAV ============ */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(3, 7, 18, 0.85);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-glass);
            height: var(--nav-height);
            display: flex;
            align-items: center;
            transition: background var(--transition-med);
        }

        .site-header.scrolled {
            background: rgba(3, 7, 18, 0.95);
            box-shadow: 0 4px 30px rgba(0, 0, 0, 0.5);
        }

        .navbar {
            padding: 0;
        }

        .navbar .container-fluid {
            padding-left: 24px;
            padding-right: 24px;
            flex-wrap: nowrap;
        }

        .nav-logo-link {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            color: var(--text-primary);
            transition: opacity var(--transition-fast);
            white-space: nowrap;
            flex-shrink: 0;
        }

        .nav-logo-link:hover {
            color: var(--text-primary);
            opacity: 0.85;
        }

        .nav-logo-icon {
            width: 38px;
            height: 38px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--accent-blue), var(--accent-cyan));
            color: #fff;
            font-size: 1.1rem;
            box-shadow: var(--shadow-glow-blue);
            flex-shrink: 0;
        }

        .nav-logo-text {
            font-weight: 700;
            font-size: 1.05rem;
            line-height: 1.2;
            display: inline-flex;
            flex-direction: column;
            color: var(--text-primary);
        }

        .nav-logo-text small {
            font-weight: 400;
            font-size: 0.68rem;
            color: var(--text-secondary);
            letter-spacing: 0.03em;
        }

        .navbar-nav-custom {
            gap: 20px;
        }

        .navbar-nav-custom .nav-link {
            color: var(--text-secondary);
            font-weight: 500;
            font-size: 0.92rem;
            padding: 8px 0 !important;
            position: relative;
            transition: color var(--transition-fast);
            white-space: nowrap;
        }

        .navbar-nav-custom .nav-link::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: linear-gradient(90deg, var(--accent-blue), var(--accent-cyan));
            transition: width var(--transition-med);
            border-radius: 2px;
        }

        .navbar-nav-custom .nav-link:hover,
        .navbar-nav-custom .nav-link.active {
            color: var(--text-primary);
        }

        .navbar-nav-custom .nav-link:hover::after,
        .navbar-nav-custom .nav-link.active::after {
            width: 100%;
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
            margin-left: 16px;
        }

        .btn-nav-login {
            background: transparent;
            color: var(--text-primary);
            border: 1px solid var(--border-strong);
            padding: 8px 18px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.85rem;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .btn-nav-login:hover {
            background: rgba(56, 189, 248, 0.1);
            border-color: var(--accent-cyan);
            color: var(--text-primary);
        }

        .btn-nav-primary {
            background: linear-gradient(135deg, var(--accent-blue), var(--accent-cyan));
            color: #fff;
            border: none;
            padding: 9px 22px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 0.85rem;
            box-shadow: var(--shadow-glow-blue);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .btn-nav-primary:hover {
            background: linear-gradient(135deg, #1D4ED8, #0EA5E9);
            color: #fff;
            box-shadow: var(--shadow-glow-deep);
            transform: translateY(-1px);
        }

        .navbar-toggler {
            border: 1px solid var(--border-glass);
            padding: 6px 10px;
            border-radius: 8px;
        }

        .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(56, 189, 248, 0.8)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }

        /* ============ HERO ============ */
        .hero-section {
            padding-top: calc(var(--nav-height) + 60px);
            padding-bottom: 70px;
            position: relative;
            z-index: 1;
        }

        .hero-section .hero-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 18px;
        }

        .hero-section h1 {
            font-size: 3rem;
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 20px;
            letter-spacing: -0.02em;
        }

        .hero-section h1 .text-gradient {
            display: block;
        }

        .hero-section .hero-desc {
            font-size: 1.1rem;
            color: var(--text-secondary);
            line-height: 1.7;
            max-width: 560px;
            margin-bottom: 30px;
        }

        .hero-cta-group {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            align-items: center;
        }

        .btn-primary-glow {
            background: linear-gradient(135deg, var(--accent-blue), var(--accent-cyan));
            color: #fff;
            border: none;
            padding: 14px 32px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 1rem;
            box-shadow: var(--shadow-glow-blue);
            transition: all var(--transition-med);
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }

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

        .btn-outline-cyan {
            background: transparent;
            color: var(--text-primary);
            border: 1px solid var(--border-strong);
            padding: 14px 26px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 1rem;
            transition: all var(--transition-fast);
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }

        .btn-outline-cyan:hover {
            background: rgba(56, 189, 248, 0.1);
            color: var(--text-primary);
            border-color: var(--accent-cyan);
        }

        .hero-highlight-card {
            background: var(--bg-glass);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-lg);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            padding: 28px;
            box-shadow: var(--shadow-lg);
            position: relative;
            overflow: hidden;
        }

        .hero-highlight-card::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: radial-gradient(ellipse, rgba(37, 99, 235, 0.15) 0%, transparent 60%);
            pointer-events: none;
        }

        .hero-highlight-card .highlight-icon {
            width: 56px;
            height: 56px;
            border-radius: 14px;
            background: linear-gradient(135deg, var(--accent-blue), var(--accent-cyan));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            color: #fff;
            box-shadow: var(--shadow-glow-blue);
            margin-bottom: 18px;
            position: relative;
            z-index: 1;
        }

        .hero-highlight-card h3 {
            font-size: 1.4rem;
            font-weight: 700;
            margin-bottom: 8px;
            position: relative;
            z-index: 1;
        }

        .hero-highlight-card p {
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.6;
            position: relative;
            z-index: 1;
        }

        .hero-highlight-card .hero-stats-row {
            display: flex;
            gap: 20px;
            margin-top: 20px;
            position: relative;
            z-index: 1;
            flex-wrap: wrap;
        }

        .hero-highlight-card .hero-stat {
            flex: 1;
            min-width: 80px;
        }

        .hero-highlight-card .hero-stat .stat-value {
            font-size: 1.3rem;
            font-weight: 800;
            color: var(--text-primary);
        }

        .hero-highlight-card .hero-stat .stat-label {
            font-size: 0.78rem;
            color: var(--text-muted);
            margin-top: 2px;
        }

        .hero-highlight-card .card-image-wrap {
            border-radius: var(--radius-md);
            overflow: hidden;
            margin-top: 20px;
            position: relative;
            z-index: 1;
            border: 1px solid var(--border-subtle);
        }

        .hero-highlight-card .card-image-wrap img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }

        .hero-highlight-card .card-image-wrap:hover img {
            transform: scale(1.05);
        }

        /* ============ METRICS DASHBOARD ============ */
        .metrics-section {
            padding: 70px 0;
            position: relative;
            z-index: 1;
        }

        .metrics-section .section-heading {
            margin-bottom: 40px;
        }

        .metrics-section .section-heading h2 {
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: 10px;
        }

        .metric-card {
            background: var(--bg-glass);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-md);
            padding: 24px;
            text-align: left;
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            transition: all var(--transition-med);
            height: 100%;
            position: relative;
            overflow: hidden;
        }

        .metric-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--accent-blue), var(--accent-cyan));
            opacity: 0.6;
        }

        .metric-card:hover {
            border-color: var(--border-strong);
            transform: translateY(-3px);
            box-shadow: var(--shadow-md);
        }

        .metric-card .metric-icon {
            font-size: 1.6rem;
            color: var(--accent-cyan);
            margin-bottom: 12px;
        }

        .metric-card .metric-value {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--text-primary);
            line-height: 1.2;
        }

        .metric-card .metric-label {
            font-size: 0.85rem;
            color: var(--text-secondary);
            margin-top: 6px;
        }

        /* ============ SERVICE MATRIX ============ */
        .service-matrix-section {
            padding: 70px 0;
            position: relative;
            z-index: 1;
        }

        .service-matrix-section .section-heading {
            margin-bottom: 40px;
        }

        .service-matrix-section .section-heading h2 {
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: 10px;
        }

        .service-card {
            background: var(--bg-glass);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-md);
            padding: 28px;
            height: 100%;
            transition: all var(--transition-med);
            position: relative;
            overflow: hidden;
        }

        .service-card:hover {
            border-color: var(--border-strong);
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
        }

        .service-card .service-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: rgba(37, 99, 235, 0.15);
            border: 1px solid rgba(56, 189, 248, 0.25);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            color: var(--accent-cyan);
            margin-bottom: 16px;
        }

        .service-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 8px;
        }

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

        /* ============ COMPARISON ============ */
        .comparison-section {
            padding: 70px 0;
            position: relative;
            z-index: 1;
        }

        .comparison-section .section-heading {
            margin-bottom: 40px;
        }

        .comparison-section .section-heading h2 {
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: 10px;
        }

        .comparison-card {
            background: var(--bg-glass);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-lg);
            padding: 32px;
            height: 100%;
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            transition: all var(--transition-med);
        }

        .comparison-card:hover {
            border-color: var(--border-strong);
            box-shadow: var(--shadow-md);
        }

        .comparison-card .comparison-header {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 20px;
        }

        .comparison-card .comparison-header .icon {
            width: 44px;
            height: 44px;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            color: #fff;
        }

        .comparison-card .comparison-header .icon.lieng-icon {
            background: linear-gradient(135deg, var(--accent-blue), var(--accent-cyan));
        }

        .comparison-card .comparison-header .icon.bacay-icon {
            background: linear-gradient(135deg, #F59E0B, #F97316);
        }

        .comparison-card .comparison-header h3 {
            font-size: 1.3rem;
            font-weight: 700;
            margin-bottom: 0;
        }

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

        .comparison-card ul li {
            padding: 10px 0;
            border-bottom: 1px solid var(--border-subtle);
            color: var(--text-secondary);
            font-size: 0.9rem;
            display: flex;
            align-items: flex-start;
            gap: 10px;
        }

        .comparison-card ul li:last-child {
            border-bottom: none;
        }

        .comparison-card ul li i {
            color: var(--success);
            margin-top: 4px;
            flex-shrink: 0;
        }

        /* ============ MILESTONE / STEPS ============ */
        .milestone-section {
            padding: 70px 0;
            position: relative;
            z-index: 1;
        }

        .milestone-section .section-heading {
            margin-bottom: 40px;
        }

        .milestone-section .section-heading h2 {
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: 10px;
        }

        .step-card {
            background: var(--bg-glass);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-md);
            padding: 28px;
            height: 100%;
            transition: all var(--transition-med);
            text-align: left;
        }

        .step-card:hover {
            border-color: var(--border-strong);
            transform: translateY(-3px);
            box-shadow: var(--shadow-md);
        }

        .step-card .step-number {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent-blue), var(--accent-cyan));
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 0.95rem;
            margin-bottom: 14px;
            box-shadow: var(--shadow-glow-blue);
        }

        .step-card h3 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 6px;
        }

        .step-card p {
            color: var(--text-secondary);
            font-size: 0.88rem;
            line-height: 1.6;
            margin-bottom: 0;
        }

        /* ============ NEWS / CMS LIST ============ */
        .news-section {
            padding: 70px 0;
            position: relative;
            z-index: 1;
        }

        .news-section .section-heading {
            margin-bottom: 35px;
        }

        .news-section .section-heading h2 {
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: 10px;
        }

        .news-card {
            background: var(--bg-glass);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-md);
            overflow: hidden;
            height: 100%;
            transition: all var(--transition-med);
            display: flex;
            flex-direction: column;
            position: relative;
        }

        .news-card:hover {
            border-color: var(--border-strong);
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
        }

        .news-card .news-image {
            height: 180px;
            overflow: hidden;
            position: relative;
            flex-shrink: 0;
        }

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

        .news-card:hover .news-image img {
            transform: scale(1.08);
        }

        .news-card .news-image .news-category-badge {
            position: absolute;
            top: 14px;
            left: 14px;
            background: rgba(3, 7, 18, 0.85);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            border: 1px solid var(--border-strong);
            color: var(--text-accent);
            padding: 4px 14px;
            border-radius: 50px;
            font-size: 0.7rem;
            font-weight: 600;
            letter-spacing: 0.03em;
        }

        .news-card .news-body {
            padding: 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .news-card .news-body h3 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 8px;
            line-height: 1.45;
        }

        .news-card .news-body h3 a {
            color: var(--text-primary);
            transition: color var(--transition-fast);
        }

        .news-card .news-body h3 a:hover {
            color: var(--accent-cyan);
        }

        .news-card .news-body .news-excerpt {
            color: var(--text-secondary);
            font-size: 0.88rem;
            line-height: 1.6;
            flex: 1;
            margin-bottom: 12px;
        }

        .news-card .news-body .news-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 0.78rem;
            color: var(--text-muted);
            border-top: 1px solid var(--border-subtle);
            padding-top: 12px;
        }

        .news-empty {
            background: var(--bg-glass);
            border: 1px dashed var(--border-glass);
            border-radius: var(--radius-md);
            padding: 40px;
            text-align: center;
            color: var(--text-muted);
            font-size: 1rem;
        }

        /* ============ FAQ ============ */
        .faq-section {
            padding: 70px 0;
            position: relative;
            z-index: 1;
        }

        .faq-section .section-heading {
            margin-bottom: 40px;
        }

        .faq-section .section-heading h2 {
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: 10px;
        }

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

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

        .faq-item .faq-question {
            width: 100%;
            background: transparent;
            border: none;
            padding: 18px 24px;
            color: var(--text-primary);
            font-weight: 600;
            font-size: 0.98rem;
            text-align: left;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            cursor: pointer;
            transition: background var(--transition-fast);
        }

        .faq-item .faq-question:hover {
            background: rgba(56, 189, 248, 0.05);
        }

        .faq-item .faq-question .faq-toggle-icon {
            color: var(--accent-cyan);
            font-size: 0.85rem;
            transition: transform var(--transition-fast);
            flex-shrink: 0;
        }

        .faq-item .faq-question[aria-expanded="true"] .faq-toggle-icon {
            transform: rotate(45deg);
        }

        .faq-item .faq-answer {
            padding: 0 24px 20px;
            color: var(--text-secondary);
            font-size: 0.9rem;
            line-height: 1.65;
        }

        /* ============ CTA SECTION ============ */
        .cta-section {
            padding: 70px 0 90px;
            position: relative;
            z-index: 1;
        }

        .cta-card {
            background: var(--bg-glass);
            border: 1px solid var(--border-strong);
            border-radius: var(--radius-xl);
            padding: 50px 40px;
            text-align: center;
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            box-shadow: var(--shadow-lg);
            position: relative;
            overflow: hidden;
        }

        .cta-card::before {
            content: '';
            position: absolute;
            top: -40%;
            left: 50%;
            transform: translateX(-50%);
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(37, 99, 235, 0.2) 0%, transparent 65%);
            pointer-events: none;
        }

        .cta-card h2 {
            font-size: 2.2rem;
            font-weight: 800;
            margin-bottom: 14px;
            position: relative;
            z-index: 1;
        }

        .cta-card p {
            color: var(--text-secondary);
            font-size: 1.05rem;
            margin-bottom: 28px;
            max-width: 560px;
            margin-left: auto;
            margin-right: auto;
            position: relative;
            z-index: 1;
        }

        .cta-card .cta-actions {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 14px;
            position: relative;
            z-index: 1;
        }

        .cta-card .cta-note {
            margin-top: 20px;
            font-size: 0.78rem;
            color: var(--text-muted);
            position: relative;
            z-index: 1;
        }

        /* ============ FOOTER ============ */
        .site-footer {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-glass);
            padding: 60px 0 30px;
            position: relative;
            z-index: 1;
        }

        .footer-brand {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            margin-bottom: 16px;
        }

        .footer-brand .brand-text {
            font-weight: 700;
            font-size: 1rem;
            line-height: 1.4;
            color: var(--text-primary);
        }

        .footer-desc {
            color: var(--text-secondary);
            font-size: 0.85rem;
            line-height: 1.65;
            margin-bottom: 16px;
            max-width: 460px;
        }

        .footer-heading {
            font-size: 0.9rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 18px;
            letter-spacing: 0.02em;
        }

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

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

        .footer-links li a {
            color: var(--text-secondary);
            font-size: 0.85rem;
            transition: color var(--transition-fast);
        }

        .footer-links li a:hover {
            color: var(--text-accent);
        }

        .footer-links li {
            color: var(--text-secondary);
            font-size: 0.85rem;
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .footer-copyright {
            margin-top: 40px;
            padding-top: 20px;
            border-top: 1px solid var(--border-subtle);
            font-size: 0.78rem;
            color: var(--text-muted);
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 10px;
        }

        /* ============ FAB ============ */
        .fab-floating {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: 1050;
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: rgba(7, 7, 13, 0.8);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border: 2px solid transparent;
            background-clip: padding-box;
            border-radius: 50px;
            padding: 6px 18px 6px 8px;
            color: var(--text-primary);
            text-decoration: none;
            box-shadow: 0 0 20px rgba(6, 182, 212, 0.45);
            transition: all var(--transition-med);
            position: fixed;
        }

        .fab-floating::before {
            content: '';
            position: absolute;
            inset: -2px;
            border-radius: 50px;
            background: linear-gradient(135deg, #A3E635, #06B6D4, #F43F5E);
            z-index: -1;
            opacity: 0.6;
        }

        .fab-floating:hover {
            box-shadow: 0 0 28px rgba(6, 182, 212, 0.65);
            transform: translateY(-2px);
            color: var(--text-primary);
            opacity: 1;
        }

        .fab-floating:active {
            transform: scale(0.96);
        }

        .fab-floating .fab-icon {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent-blue), var(--accent-cyan));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            color: #fff;
            flex-shrink: 0;
            box-shadow: var(--shadow-glow-blue);
        }

        .fab-floating .fab-label {
            font-weight: 700;
            font-size: 0.82rem;
            color: var(--text-primary);
            letter-spacing: 0.02em;
            white-space: nowrap;
        }

        .fab-floating .fab-notification-dot {
            position: absolute;
            top: -2px;
            right: -2px;
            width: 14px;
            height: 14px;
            background: var(--danger);
            border-radius: 50%;
            border: 2px solid #fff;
            animation: fab-pulse 1.8s infinite;
        }

        @keyframes fab-pulse {
            0%, 100% { box-shadow: 0 0 0 0 rgba(239, 68, 68, 0.6); }
            50% { box-shadow: 0 0 0 8px rgba(239, 68, 68, 0); }
        }

        /* ============ RESPONSIVE ============ */
        @media (max-width: 1024px) {
            .hero-section h1 {
                font-size: 2.5rem;
            }
            .container-fluid {
                padding-left: 18px;
                padding-right: 18px;
            }
            .navbar .container-fluid {
                padding-left: 18px;
                padding-right: 18px;
            }
        }

        @media (max-width: 991px) {
            .navbar-collapse {
                background: rgba(3, 7, 18, 0.98);
                border-radius: 0 0 var(--radius-md) var(--radius-md);
                padding: 20px;
                border: 1px solid var(--border-glass);
                margin-top: 10px;
                max-height: calc(100vh - var(--nav-height) - 20px);
                overflow-y: auto;
            }
            .navbar-nav-custom {
                gap: 8px;
            }
            .navbar-nav-custom .nav-link {
                font-size: 1rem;
                padding: 12px 0 !important;
                border-bottom: 1px solid var(--border-subtle);
            }
            .navbar-nav-custom .nav-link::after {
                display: none;
            }
            .nav-actions {
                margin-top: 16px;
                margin-left: 0;
                gap: 10px;
                flex-wrap: wrap;
            }
            .btn-nav-login, .btn-nav-primary {
                flex: 1;
                text-align: center;
                justify-content: center;
                min-width: 120px;
            }
            .hero-section {
                padding-top: calc(var(--nav-height) + 36px);
                padding-bottom: 50px;
            }
            .hero-section h1 {
                font-size: 2.2rem;
            }
            .hero-highlight-card {
                margin-top: 30px;
            }
            .metric-card .metric-value {
                font-size: 1.8rem;
            }
            .comparison-card {
                margin-bottom: 16px;
            }
        }

        @media (max-width: 767px) {
            .hero-section h1 {
                font-size: 1.9rem;
            }
            .hero-section .hero-desc {
                font-size: 1rem;
            }
            .section-heading h2 {
                font-size: 1.6rem !important;
            }
            .cta-card {
                padding: 36px 20px;
            }
            .cta-card h2 {
                font-size: 1.7rem;
            }
            .cta-card p {
                font-size: 0.95rem;
            }
            .metrics-section,
            .service-matrix-section,
            .comparison-section,
            .milestone-section,
            .news-section,
            .faq-section,
            .cta-section {
                padding: 50px 0;
            }
            .fab-floating {
                bottom: 75px;
                left: 12px;
                padding: 5px 13px 5px 6px;
            }
            .fab-floating .fab-label {
                font-size: 0.7rem;
            }
            .fab-floating .fab-icon {
                width: 34px;
                height: 34px;
                font-size: 0.95rem;
            }
            .footer-copyright {
                flex-direction: column;
                align-items: flex-start;
            }
        }

        @media (max-width: 575px) {
            .container-fluid {
                padding-left: 14px;
                padding-right: 14px;
            }
            .navbar .container-fluid {
                padding-left: 14px;
                padding-right: 14px;
            }
            .nav-logo-text {
                font-size: 0.9rem;
            }
            .nav-logo-icon {
                width: 32px;
                height: 32px;
                font-size: 0.9rem;
            }
            .hero-section h1 {
                font-size: 1.6rem;
            }
            .hero-cta-group {
                flex-direction: column;
                align-items: stretch;
            }
            .hero-cta-group .btn {
                justify-content: center;
                text-align: center;
            }
            .metric-card {
                padding: 18px;
            }
            .metric-card .metric-value {
                font-size: 1.5rem;
            }
            .step-card,
            .service-card,
            .comparison-card {
                padding: 20px;
            }
            .cta-card h2 {
                font-size: 1.4rem;
            }
            .cta-actions {
                flex-direction: column;
            }
            .cta-actions .btn {
                width: 100%;
                justify-content: center;
            }
        }

/* roulang: framework shim */
/* 覆盖 Bootstrap 等对 a/btn 的全局默认，避免导航出现下划线/蓝链 */
.site-header a,.site-header a:hover,.navbar a,.navbar a:hover,.nav-links a,.nav-links a:hover,header nav a,header nav a:hover{text-decoration:none}
.site-header .btn,.navbar .btn,.nav-cta{text-decoration:none}