/* roulang page: index */
:root {
            --color-bg: #08090F;
            --color-bg-alt: #0D111E;
            --color-surface: #131827;
            --color-border: rgba(0, 240, 255, 0.15);
            --color-primary: #0052FF;
            --color-primary-hover: #0A63FF;
            --color-accent: #00F0FF;
            --color-accent-soft: rgba(0, 240, 255, 0.12);
            --color-text: #FFFFFF;
            --color-text-secondary: #CBD5E1;
            --color-text-muted: #8A94A6;
            --color-danger: #FF3B3B;
            --color-success: #2ECC71;
            --color-gold: #FFD700;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 24px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
            --shadow-md: 0 6px 18px rgba(0, 0, 0, 0.4);
            --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.5);
            --shadow-neon: 0 0 15px rgba(0, 240, 255, 0.5);
            --font-sans: 'Inter', 'Segoe UI', 'Roboto', sans-serif;
            --transition-fast: 0.2s ease;
            --transition-base: 0.3s ease;
            --transition-slow: 0.5s ease;
        }

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

        body {
            font-family: var(--font-sans);
            background-color: var(--color-bg);
            color: var(--color-text);
            line-height: 1.6;
            font-size: 16px;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

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

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

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            outline: none;
        }

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

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

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

        /* Header & Navigation */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 100;
            background: rgba(8, 9, 15, 0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(0, 240, 255, 0.15);
            transition: all var(--transition-base);
        }

        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 72px;
            padding-top: 0;
            padding-bottom: 0;
        }

        .site-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.25rem;
            font-weight: 800;
            color: var(--color-text);
            letter-spacing: -0.02em;
            line-height: 1.2;
            max-width: 260px;
        }

        .site-logo .logo-icon {
            width: 42px;
            height: 42px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.25rem;
            color: #fff;
            flex-shrink: 0;
            box-shadow: var(--shadow-neon);
        }

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

        .main-nav li {
            margin: 0;
        }

        .main-nav a {
            display: inline-block;
            padding: 10px 16px;
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--color-text-secondary);
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .main-nav a:hover,
        .main-nav a:focus {
            color: var(--color-text);
            background: var(--color-accent-soft);
        }

        .main-nav a.active {
            color: var(--color-accent);
            background: var(--color-accent-soft);
        }

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

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 24px;
            font-size: 0.95rem;
            font-weight: 700;
            border-radius: var(--radius-md);
            transition: all var(--transition-fast);
            text-align: center;
            line-height: 1.2;
            letter-spacing: -0.01em;
        }

        .btn-login {
            padding: 10px 18px;
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--color-text-secondary);
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: var(--radius-sm);
        }

        .btn-login:hover,
        .btn-login:focus {
            color: var(--color-text);
            border-color: var(--color-accent);
            background: var(--color-accent-soft);
        }

        .btn-signup {
            padding: 10px 20px;
            font-size: 0.9rem;
            font-weight: 700;
            color: #fff;
            background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
            border-radius: var(--radius-sm);
            box-shadow: 0 4px 12px rgba(0, 82, 255, 0.35);
        }

        .btn-signup:hover,
        .btn-signup:focus {
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(0, 82, 255, 0.5);
            color: #fff;
        }

        .mobile-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 10px;
            border-radius: var(--radius-sm);
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.15);
        }

        .mobile-toggle span {
            display: block;
            width: 22px;
            height: 2px;
            background: var(--color-text);
            border-radius: 2px;
            transition: all var(--transition-fast);
        }

        /* Hero Section */
        .hero {
            padding: 140px 0 80px;
            background: linear-gradient(160deg, rgba(0, 82, 255, 0.12) 0%, rgba(0, 240, 255, 0.05) 40%, transparent 70%);
            position: relative;
            overflow: hidden;
        }

        .hero::after {
            content: '';
            position: absolute;
            top: 0;
            right: -10%;
            width: 60%;
            height: 100%;
            background: radial-gradient(circle at 70% 50%, rgba(0, 240, 255, 0.1) 0%, transparent 60%);
            pointer-events: none;
        }

        .hero .container {
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 50px;
            align-items: center;
            position: relative;
            z-index: 1;
        }

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

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 16px;
            font-size: 0.8rem;
            font-weight: 700;
            color: var(--color-accent);
            background: var(--color-accent-soft);
            border: 1px solid rgba(0, 240, 255, 0.25);
            border-radius: 50px;
            margin-bottom: 20px;
            letter-spacing: 0.03em;
        }

        .hero h1 {
            font-size: 3rem;
            font-weight: 900;
            line-height: 1.15;
            letter-spacing: -0.03em;
            color: var(--color-text);
            margin: 0 0 20px;
        }

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

        .hero-description {
            font-size: 1.1rem;
            color: var(--color-text-secondary);
            line-height: 1.7;
            margin: 0 0 30px;
            max-width: 560px;
        }

        .hero-actions {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
            margin-bottom: 36px;
        }

        .btn-primary {
            padding: 14px 30px;
            font-size: 1rem;
            font-weight: 800;
            color: #fff;
            background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
            border-radius: var(--radius-md);
            box-shadow: 0 6px 20px rgba(0, 82, 255, 0.4);
        }

        .btn-primary:hover,
        .btn-primary:focus {
            transform: translateY(-2px);
            box-shadow: 0 10px 28px rgba(0, 82, 255, 0.55);
            color: #fff;
        }

        .btn-outline {
            padding: 14px 28px;
            font-size: 1rem;
            font-weight: 700;
            color: var(--color-text);
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.25);
            border-radius: var(--radius-md);
        }

        .btn-outline:hover,
        .btn-outline:focus {
            border-color: var(--color-accent);
            background: var(--color-accent-soft);
            color: var(--color-text);
        }

        .hero-kpi {
            display: flex;
            gap: 30px;
            flex-wrap: wrap;
        }

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

        .kpi-number {
            font-size: 1.6rem;
            font-weight: 900;
            color: var(--color-accent);
            letter-spacing: -0.02em;
        }

        .kpi-label {
            font-size: 0.8rem;
            color: var(--color-text-muted);
            font-weight: 500;
        }

        .hero-visual {
            position: relative;
        }

        .hero-image-wrapper {
            position: relative;
            border-radius: var(--radius-xl);
            overflow: hidden;
            box-shadow: var(--shadow-lg), var(--shadow-neon);
            transform: rotate(2deg);
            transition: transform var(--transition-slow);
        }

        .hero-image-wrapper:hover {
            transform: rotate(0deg);
        }

        .hero-image-wrapper img {
            width: 100%;
            height: 480px;
            object-fit: cover;
            border-radius: var(--radius-xl);
        }

        .hero-image-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(8, 9, 15, 0.4) 0%, transparent 50%, rgba(0, 240, 255, 0.15) 100%);
            pointer-events: none;
        }

        /* Section General */
        .section {
            padding: 70px 0;
        }

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

        .section-header {
            margin-bottom: 40px;
        }

        .section-header.left {
            text-align: left;
        }

        .section-tag {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 700;
            color: var(--color-accent);
            text-transform: uppercase;
            letter-spacing: 0.08em;
            margin-bottom: 12px;
        }

        .section-header h2 {
            font-size: 2.2rem;
            font-weight: 900;
            letter-spacing: -0.02em;
            line-height: 1.2;
            margin: 0 0 12px;
            color: var(--color-text);
        }

        .section-header p {
            font-size: 1rem;
            color: var(--color-text-secondary);
            line-height: 1.7;
            max-width: 720px;
            margin: 0;
        }

        .section-header.left p {
            margin-left: 0;
        }

        /* Feature Grid */
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
            gap: 24px;
        }

        .feature-card {
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            transition: all var(--transition-base);
            position: relative;
            overflow: hidden;
        }

        .feature-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
            opacity: 0;
            transition: opacity var(--transition-base);
        }

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

        .feature-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: rgba(0, 240, 255, 0.35);
        }

        .feature-icon {
            width: 52px;
            height: 52px;
            border-radius: var(--radius-md);
            background: var(--color-accent-soft);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            color: var(--color-accent);
            margin-bottom: 18px;
        }

        .feature-card h3 {
            font-size: 1.15rem;
            font-weight: 800;
            margin: 0 0 10px;
            color: var(--color-text);
        }

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

        /* Comparison Table */
        .comparison-wrapper {
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            overflow: hidden;
        }

        .comparison-table {
            width: 100%;
            border-collapse: collapse;
        }

        .comparison-table th,
        .comparison-table td {
            padding: 16px 20px;
            text-align: left;
            font-size: 0.9rem;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }

        .comparison-table th {
            background: rgba(0, 240, 255, 0.06);
            font-weight: 800;
            color: var(--color-accent);
            font-size: 0.85rem;
            text-transform: uppercase;
            letter-spacing: 0.04em;
        }

        .comparison-table td {
            color: var(--color-text-secondary);
        }

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

        .badge-highlight {
            display: inline-block;
            padding: 4px 12px;
            font-size: 0.75rem;
            font-weight: 700;
            color: #fff;
            background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
            border-radius: 50px;
        }

        /* Steps */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
            gap: 24px;
        }

        .step-item {
            display: flex;
            gap: 18px;
            align-items: flex-start;
        }

        .step-number {
            width: 48px;
            height: 48px;
            flex-shrink: 0;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            font-weight: 900;
            color: #fff;
        }

        .step-content h3 {
            font-size: 1rem;
            font-weight: 800;
            margin: 0 0 6px;
            color: var(--color-text);
        }

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

        /* CTA Banner */
        .cta-banner {
            background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%);
            border-radius: var(--radius-xl);
            padding: 50px 40px;
            position: relative;
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }

        .cta-banner::after {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 60%;
            height: 200%;
            background: rgba(255, 255, 255, 0.08);
            transform: rotate(25deg);
            pointer-events: none;
        }

        .cta-banner h2 {
            font-size: 2rem;
            font-weight: 900;
            color: #fff;
            margin: 0 0 14px;
            letter-spacing: -0.02em;
            position: relative;
            z-index: 1;
        }

        .cta-banner p {
            font-size: 1rem;
            color: rgba(255, 255, 255, 0.9);
            margin: 0 0 24px;
            max-width: 500px;
            position: relative;
            z-index: 1;
            line-height: 1.6;
        }

        .btn-cta {
            padding: 14px 32px;
            font-size: 1rem;
            font-weight: 800;
            color: var(--color-primary);
            background: #fff;
            border-radius: var(--radius-md);
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
            position: relative;
            z-index: 1;
        }

        .btn-cta:hover,
        .btn-cta:focus {
            transform: translateY(-2px);
            box-shadow: 0 10px 28px rgba(0, 0, 0, 0.3);
            color: var(--color-primary);
        }

        /* News List */
        .news-layout {
            display: grid;
            grid-template-columns: 1.4fr 0.6fr;
            gap: 32px;
        }

        .news-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .news-item {
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 16px 18px;
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            transition: all var(--transition-fast);
        }

        .news-item:hover {
            border-color: rgba(0, 240, 255, 0.35);
            box-shadow: var(--shadow-sm);
            transform: translateX(4px);
        }

        .news-icon {
            width: 40px;
            height: 40px;
            flex-shrink: 0;
            border-radius: var(--radius-sm);
            background: var(--color-accent-soft);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-accent);
            font-size: 1rem;
        }

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

        .news-content h3 {
            font-size: 0.95rem;
            font-weight: 700;
            margin: 0 0 4px;
            color: var(--color-text);
        }

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

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

        .news-meta {
            font-size: 0.78rem;
            color: var(--color-text-muted);
        }

        .news-sidebar {
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            padding: 24px;
            height: fit-content;
        }

        .news-sidebar h3 {
            font-size: 1rem;
            font-weight: 800;
            margin: 0 0 16px;
            color: var(--color-text);
        }

        .sidebar-link {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 10px 0;
            font-size: 0.85rem;
            color: var(--color-text-secondary);
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            transition: all var(--transition-fast);
        }

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

        .sidebar-link:hover {
            color: var(--color-accent);
            padding-left: 6px;
        }

        .sidebar-link i {
            color: var(--color-accent);
            font-size: 0.8rem;
            width: 18px;
            text-align: center;
        }

        /* FAQ */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .faq-item {
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition-base);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 22px;
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--color-text);
            cursor: pointer;
            transition: all var(--transition-fast);
            width: 100%;
            text-align: left;
        }

        .faq-question:hover {
            background: rgba(0, 240, 255, 0.04);
        }

        .faq-question i {
            color: var(--color-accent);
            font-size: 0.9rem;
            transition: transform var(--transition-base);
            flex-shrink: 0;
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-slow);
            padding: 0 22px;
        }

        .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 0 22px 18px;
        }

        .faq-answer p {
            font-size: 0.88rem;
            color: var(--color-text-secondary);
            line-height: 1.7;
            margin: 0;
        }

        /* Floating CTA Bar */
        .floating-cta {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 90;
            background: rgba(8, 9, 15, 0.95);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-top: 1px solid rgba(0, 240, 255, 0.25);
            padding: 14px 0;
            transform: translateY(100%);
            transition: transform var(--transition-slow);
        }

        .floating-cta.visible {
            transform: translateY(0);
        }

        .floating-cta .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
        }

        .floating-cta-text {
            font-size: 0.9rem;
            color: var(--color-text-secondary);
            line-height: 1.4;
        }

        .floating-cta-text strong {
            color: var(--color-accent);
            font-weight: 800;
        }

        /* Left FAB */
        .fab-left {
            position: fixed;
            left: 20px;
            bottom: 96px;
            z-index: 85;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: rgba(8, 9, 15, 0.7);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 2px solid transparent;
            background-image: linear-gradient(rgba(8, 9, 15, 0.7), rgba(8, 9, 15, 0.7)), linear-gradient(135deg, var(--color-primary), var(--color-accent));
            background-origin: padding-box, border-box;
            background-clip: padding-box, border-box;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-accent);
            font-size: 1.3rem;
            box-shadow: 0 0 15px rgba(0, 240, 255, 0.5);
            opacity: 0.6;
            transition: all var(--transition-base);
            cursor: pointer;
            animation: fab-breathe 2.5s ease-in-out infinite;
        }

        .fab-left:hover {
            opacity: 1;
            transform: scale(1.1);
            box-shadow: 0 0 28px rgba(0, 240, 255, 0.75);
        }

        .fab-left:active {
            transform: scale(0.95);
            border-color: #FF007F;
            color: #FF007F;
        }

        .fab-notification {
            position: absolute;
            top: 2px;
            right: 2px;
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background: #FF3B3B;
            border: 2px solid var(--color-bg);
            animation: blink 1.5s ease-in-out infinite;
        }

        @keyframes fab-breathe {
            0%, 100% { transform: scale(1); }
            50% { transform: scale(1.05); }
        }

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

        /* Ticket Comparison */
        .ticket-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 24px;
        }

        .ticket-card {
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            padding: 28px;
            transition: all var(--transition-base);
            position: relative;
        }

        .ticket-card.featured {
            border-color: var(--color-accent);
            box-shadow: var(--shadow-neon);
        }

        .ticket-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }

        .ticket-badge {
            position: absolute;
            top: -12px;
            right: 20px;
            padding: 4px 14px;
            font-size: 0.7rem;
            font-weight: 800;
            color: #fff;
            background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
            border-radius: 50px;
            text-transform: uppercase;
            letter-spacing: 0.05em;
        }

        .ticket-card h3 {
            font-size: 1.1rem;
            font-weight: 800;
            margin: 0 0 8px;
            color: var(--color-text);
        }

        .ticket-price {
            font-size: 2rem;
            font-weight: 900;
            color: var(--color-accent);
            margin-bottom: 16px;
            letter-spacing: -0.02em;
        }

        .ticket-price span {
            font-size: 0.9rem;
            color: var(--color-text-muted);
            font-weight: 500;
        }

        .ticket-features {
            list-style: none;
            margin: 0 0 20px;
            padding: 0;
        }

        .ticket-features li {
            padding: 8px 0;
            font-size: 0.85rem;
            color: var(--color-text-secondary);
            display: flex;
            align-items: center;
            gap: 10px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
        }

        .ticket-features li:last-child {
            border-bottom: none;
        }

        .ticket-features li i {
            color: var(--color-success);
            font-size: 0.8rem;
            width: 16px;
            text-align: center;
        }

        .btn-ticket {
            width: 100%;
            padding: 12px 20px;
            font-size: 0.9rem;
            font-weight: 700;
            color: #fff;
            background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
            border-radius: var(--radius-md);
            transition: all var(--transition-fast);
        }

        .btn-ticket:hover,
        .btn-ticket:focus {
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(0, 82, 255, 0.4);
            color: #fff;
        }

        /* Footer */
        .site-footer {
            background: var(--color-bg-alt);
            border-top: 1px solid rgba(0, 240, 255, 0.1);
            padding: 50px 0 30px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 32px;
            margin-bottom: 32px;
        }

        .footer-brand h3 {
            font-size: 1.1rem;
            font-weight: 800;
            color: var(--color-text);
            margin: 0 0 12px;
            line-height: 1.3;
        }

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

        .footer-links h4 {
            font-size: 0.9rem;
            font-weight: 800;
            color: var(--color-text);
            margin: 0 0 14px;
            text-transform: uppercase;
            letter-spacing: 0.04em;
        }

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

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

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

        .footer-links ul a:hover {
            color: var(--color-accent);
            padding-left: 4px;
        }

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

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

        .footer-badges {
            display: flex;
            gap: 12px;
            align-items: center;
        }

        .footer-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 12px;
            font-size: 0.75rem;
            font-weight: 700;
            color: var(--color-text-secondary);
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 50px;
        }

        .footer-badge i {
            color: var(--color-accent);
            font-size: 0.75rem;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .hero h1 {
                font-size: 2.4rem;
            }

            .hero .container {
                gap: 36px;
            }

            .hero-image-wrapper img {
                height: 400px;
            }
        }

        @media (max-width: 768px) {
            .main-nav {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 72px;
                left: 0;
                right: 0;
                background: rgba(8, 9, 15, 0.98);
                border-bottom: 1px solid rgba(0, 240, 255, 0.2);
                padding: 16px 20px;
                gap: 4px;
            }

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

            .main-nav a {
                padding: 12px 16px;
                font-size: 0.95rem;
                width: 100%;
            }

            .mobile-toggle {
                display: flex;
            }

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

            .hero .container {
                grid-template-columns: 1fr;
                gap: 32px;
            }

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

            .hero h1 {
                font-size: 2rem;
            }

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

            .hero-image-wrapper img {
                height: 320px;
            }

            .section {
                padding: 50px 0;
            }

            .section-header h2 {
                font-size: 1.7rem;
            }

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

            .comparison-table {
                font-size: 0.75rem;
            }

            .comparison-table th,
            .comparison-table td {
                padding: 10px 12px;
                font-size: 0.75rem;
            }

            .floating-cta .container {
                flex-direction: column;
                gap: 10px;
                text-align: center;
            }

            .floating-cta-text {
                font-size: 0.8rem;
            }

            .fab-left {
                left: 14px;
                bottom: 80px;
                width: 48px;
                height: 48px;
                font-size: 1.1rem;
            }

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

            .site-logo {
                font-size: 1rem;
                max-width: 200px;
            }

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

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

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

            .hero-description {
                font-size: 0.9rem;
            }

            .hero-actions {
                flex-direction: column;
                gap: 10px;
                width: 100%;
            }

            .hero-actions .btn {
                width: 100%;
            }

            .hero-kpi {
                gap: 16px;
            }

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

            .feature-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }

            .steps-grid {
                grid-template-columns: 1fr;
                gap: 18px;
            }

            .ticket-grid {
                grid-template-columns: 1fr;
                gap: 18px;
            }

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

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

            .section-header h2 {
                font-size: 1.5rem;
            }

            .news-item {
                flex-direction: column;
                align-items: flex-start;
                gap: 10px;
            }

            .fab-left {
                left: 12px;
                bottom: 76px;
                width: 44px;
                height: 44px;
                font-size: 1rem;
            }

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

            .main-nav {
                top: 64px;
            }

            .site-logo {
                font-size: 0.9rem;
                max-width: 160px;
            }

            .site-logo .logo-icon {
                width: 34px;
                height: 34px;
                font-size: 1rem;
            }
        }

/* roulang page: article */
:root {
            --color-bg-primary: #08090F;
            --color-bg-secondary: #0D111E;
            --color-bg-card: #111827;
            --color-accent: #00F0FF;
            --color-accent-secondary: #0052FF;
            --color-text-primary: #FFFFFF;
            --color-text-secondary: #CBD5E1;
            --color-text-muted: #94A3B8;
            --color-border: #1E293B;
            --color-danger: #EF4444;
            --color-success: #22C55E;
            --color-warning: #F59E0B;
            --radius-sm: 8px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
            --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.4);
            --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.5);
            --shadow-neon: 0 0 20px rgba(0, 240, 255, 0.3);
            --shadow-neon-strong: 0 0 40px rgba(0, 240, 255, 0.5);
            --spacing-xs: 8px;
            --spacing-sm: 16px;
            --spacing-md: 24px;
            --spacing-lg: 40px;
            --spacing-xl: 64px;
            --spacing-xxl: 80px;
            --container-max: 1200px;
            --font-primary: 'Be Vietnam Pro', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
        }

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

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

        body {
            font-family: var(--font-primary);
            font-size: 16px;
            line-height: 1.6;
            color: var(--color-text-primary);
            background-color: var(--color-bg-primary);
            background-image: 
                radial-gradient(ellipse at 20% 10%, rgba(0, 82, 255, 0.12) 0%, transparent 55%),
                radial-gradient(ellipse at 80% 20%, rgba(0, 240, 255, 0.08) 0%, transparent 50%),
                radial-gradient(ellipse at 50% 80%, rgba(0, 82, 255, 0.05) 0%, transparent 45%);
            min-height: 100vh;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        a {
            color: var(--color-accent);
            text-decoration: none;
            transition: color 0.3s ease, opacity 0.3s ease;
        }

        a:hover,
        a:focus {
            color: var(--color-accent-secondary);
            opacity: 0.9;
            outline: none;
        }

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

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

        button,
        .btn {
            font-family: var(--font-primary);
            cursor: pointer;
            border: none;
            border-radius: var(--radius-sm);
            font-weight: 600;
            transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            text-decoration: none;
            line-height: 1.4;
        }

        .btn:focus-visible {
            outline: 2px solid var(--color-accent);
            outline-offset: 3px;
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
        }

        /* Header & Navigation */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(8, 9, 15, 0.85);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--color-border);
            transition: all 0.3s ease;
        }

        .site-header.scrolled {
            background: rgba(8, 9, 15, 0.95);
            box-shadow: var(--shadow-md);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 14px 0;
            gap: 20px;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.1rem;
            font-weight: 800;
            color: var(--color-text-primary);
            text-decoration: none;
            letter-spacing: -0.3px;
            line-height: 1.2;
            max-width: 300px;
        }

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

        .logo-icon {
            width: 42px;
            height: 42px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--color-accent-secondary), var(--color-accent));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            color: #fff;
            flex-shrink: 0;
            box-shadow: var(--shadow-neon);
        }

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

        .main-nav li {
            margin: 0;
            padding: 0;
        }

        .main-nav a {
            display: block;
            padding: 10px 16px;
            font-size: 0.92rem;
            font-weight: 500;
            color: var(--color-text-secondary);
            border-radius: 8px;
            transition: all 0.3s ease;
            white-space: nowrap;
        }

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

        .main-nav a.active {
            color: var(--color-accent);
            background: rgba(0, 240, 255, 0.12);
            font-weight: 600;
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }

        .btn-login {
            background: transparent;
            color: var(--color-text-primary);
            padding: 10px 18px;
            font-size: 0.9rem;
            font-weight: 500;
            border: 1px solid var(--color-border);
            border-radius: 8px;
        }

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

        .btn-signup {
            background: linear-gradient(135deg, var(--color-accent-secondary), var(--color-accent));
            color: #fff;
            padding: 10px 22px;
            font-size: 0.9rem;
            font-weight: 700;
            border-radius: 8px;
            box-shadow: var(--shadow-neon);
        }

        .btn-signup:hover,
        .btn-signup:focus {
            box-shadow: var(--shadow-neon-strong);
            transform: translateY(-2px);
            color: #fff;
            opacity: 1;
        }

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

        .mobile-toggle {
            display: none;
            background: transparent;
            border: 1px solid var(--color-border);
            color: var(--color-text-primary);
            width: 44px;
            height: 44px;
            border-radius: 8px;
            font-size: 1.2rem;
            align-items: center;
            justify-content: center;
        }

        .mobile-toggle:hover,
        .mobile-toggle:focus {
            border-color: var(--color-accent);
            color: var(--color-accent);
        }

        /* Article Hero / KV */
        .article-hero {
            padding-top: 140px;
            padding-bottom: 48px;
            background: linear-gradient(180deg, rgba(0, 82, 255, 0.15) 0%, transparent 100%);
            border-bottom: 1px solid var(--color-border);
            position: relative;
            overflow: hidden;
        }

        .article-hero::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -10%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(0, 240, 255, 0.1) 0%, transparent 70%);
            pointer-events: none;
            z-index: 0;
        }

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

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

        .article-breadcrumb a {
            color: var(--color-text-muted);
            transition: color 0.3s ease;
        }

        .article-breadcrumb a:hover,
        .article-breadcrumb a:focus {
            color: var(--color-accent);
        }

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

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

        .article-category-tag {
            background: rgba(0, 240, 255, 0.15);
            color: var(--color-accent);
            padding: 6px 14px;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.5px;
            text-transform: uppercase;
            border: 1px solid rgba(0, 240, 255, 0.3);
        }

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

        .article-hero h1 {
            font-size: clamp(1.8rem, 4vw, 2.8rem);
            font-weight: 900;
            line-height: 1.25;
            letter-spacing: -0.5px;
            margin-bottom: 20px;
            color: var(--color-text-primary);
            max-width: 900px;
        }

        .article-hero .article-excerpt {
            font-size: 1.1rem;
            color: var(--color-text-secondary);
            line-height: 1.7;
            max-width: 800px;
            margin-bottom: 24px;
        }

        .article-hero-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
        }

        .btn-primary-cta {
            background: linear-gradient(135deg, var(--color-accent-secondary), var(--color-accent));
            color: #fff;
            padding: 14px 28px;
            font-size: 1rem;
            font-weight: 700;
            border-radius: 10px;
            box-shadow: var(--shadow-neon);
        }

        .btn-primary-cta:hover,
        .btn-primary-cta:focus {
            box-shadow: var(--shadow-neon-strong);
            transform: translateY(-2px);
            color: #fff;
            opacity: 1;
        }

        .btn-outline-cta {
            background: transparent;
            color: var(--color-text-primary);
            padding: 14px 28px;
            font-size: 1rem;
            font-weight: 600;
            border: 1px solid var(--color-border);
            border-radius: 10px;
        }

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

        /* Countdown Bar */
        .countdown-bar {
            display: flex;
            align-items: center;
            gap: 16px;
            background: var(--color-bg-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            padding: 16px 20px;
            margin-top: 28px;
            flex-wrap: wrap;
        }

        .countdown-label {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--color-text-secondary);
            display: flex;
            align-items: center;
            gap: 8px;
            white-space: nowrap;
        }

        .countdown-label i {
            color: var(--color-warning);
            animation: pulse-icon 1.5s ease-in-out infinite;
        }

        .countdown-timer {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.2rem;
            font-weight: 800;
            color: var(--color-accent);
        }

        .countdown-timer span {
            background: var(--color-bg-secondary);
            padding: 8px 14px;
            border-radius: 8px;
            min-width: 50px;
            text-align: center;
            border: 1px solid var(--color-border);
        }

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

        /* Article Content */
        .article-content-section {
            padding: 48px 0;
        }

        .article-layout {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 40px;
            align-items: start;
        }

        .article-body {
            background: var(--color-bg-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            padding: 40px;
            line-height: 1.7;
            color: var(--color-text-secondary);
            font-size: 1.05rem;
            box-shadow: var(--shadow-sm);
        }

        .article-body h2 {
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--color-text-primary);
            margin-top: 32px;
            margin-bottom: 16px;
            line-height: 1.3;
            letter-spacing: -0.3px;
        }

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

        .article-body h3 {
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--color-text-primary);
            margin-top: 24px;
            margin-bottom: 12px;
            line-height: 1.4;
        }

        .article-body p {
            margin-bottom: 16px;
            color: var(--color-text-secondary);
            line-height: 1.7;
        }

        .article-body ul,
        .article-body ol {
            margin-bottom: 16px;
            padding-left: 24px;
            color: var(--color-text-secondary);
        }

        .article-body li {
            margin-bottom: 8px;
            line-height: 1.7;
        }

        .article-body img {
            border-radius: var(--radius-md);
            margin: 24px 0;
            border: 1px solid var(--color-border);
        }

        .article-body blockquote {
            border-left: 4px solid var(--color-accent);
            background: rgba(0, 240, 255, 0.05);
            padding: 16px 20px;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            margin: 20px 0;
            color: var(--color-text-primary);
            font-style: italic;
        }

        .article-body a {
            color: var(--color-accent);
            font-weight: 600;
            border-bottom: 1px solid rgba(0, 240, 255, 0.4);
        }

        .article-body a:hover,
        .article-body a:focus {
            border-bottom-color: var(--color-accent);
            opacity: 0.85;
        }

        /* Article CTA Box */
        .article-cta-box {
            background: linear-gradient(135deg, rgba(0, 82, 255, 0.2), rgba(0, 240, 255, 0.1));
            border: 1px solid rgba(0, 240, 255, 0.3);
            border-radius: var(--radius-md);
            padding: 24px;
            margin: 32px 0;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            flex-wrap: wrap;
        }

        .article-cta-box .cta-text {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--color-text-primary);
            max-width: 400px;
        }

        .article-cta-box .cta-text span {
            color: var(--color-accent);
        }

        .article-cta-box .btn-primary-cta {
            flex-shrink: 0;
        }

        /* Sidebar */
        .article-sidebar {
            position: sticky;
            top: 100px;
            display: flex;
            flex-direction: column;
            gap: 24px;
        }

        .sidebar-widget {
            background: var(--color-bg-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            padding: 24px;
        }

        .sidebar-widget h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--color-text-primary);
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .sidebar-widget h3 i {
            color: var(--color-accent);
            font-size: 1rem;
        }

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

        .sidebar-list li {
            margin-bottom: 12px;
            padding-bottom: 12px;
            border-bottom: 1px solid var(--color-border);
        }

        .sidebar-list li:last-child {
            margin-bottom: 0;
            padding-bottom: 0;
            border-bottom: none;
        }

        .sidebar-list a {
            color: var(--color-text-secondary);
            font-size: 0.92rem;
            font-weight: 500;
            line-height: 1.5;
            display: block;
            transition: color 0.3s ease;
        }

        .sidebar-list a:hover,
        .sidebar-list a:focus {
            color: var(--color-accent);
        }

        .sidebar-trust-badges {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .sidebar-trust-badge {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 0.88rem;
            color: var(--color-text-secondary);
            padding: 10px 14px;
            background: var(--color-bg-secondary);
            border-radius: var(--radius-sm);
            border: 1px solid var(--color-border);
        }

        .sidebar-trust-badge i {
            color: var(--color-success);
            font-size: 1rem;
            flex-shrink: 0;
        }

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

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

        .not-found h2 {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--color-text-primary);
            margin-bottom: 12px;
        }

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

        /* Footer */
        .site-footer {
            background: var(--color-bg-secondary);
            border-top: 1px solid var(--color-border);
            padding: 48px 0 24px;
            margin-top: 60px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.2fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 40px;
        }

        .footer-brand h3 {
            font-size: 1.1rem;
            font-weight: 800;
            color: var(--color-text-primary);
            margin-bottom: 12px;
            line-height: 1.4;
        }

        .footer-brand p {
            font-size: 0.88rem;
            color: var(--color-text-muted);
            line-height: 1.6;
        }

        .footer-links h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--color-text-primary);
            margin-bottom: 16px;
        }

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

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

        .footer-links a {
            color: var(--color-text-muted);
            font-size: 0.88rem;
            transition: color 0.3s ease;
        }

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

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            padding-top: 24px;
            border-top: 1px solid var(--color-border);
            flex-wrap: wrap;
        }

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

        .footer-badges {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        .footer-badge {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 0.8rem;
            color: var(--color-text-muted);
            padding: 6px 12px;
            background: var(--color-bg-card);
            border: 1px solid var(--color-border);
            border-radius: 20px;
        }

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

        /* FAB */
        .fab-left {
            position: fixed;
            left: 24px;
            bottom: 96px;
            z-index: 50;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: rgba(8, 9, 15, 0.8);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 2px solid transparent;
            background-clip: padding-box;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            color: var(--color-accent);
            cursor: pointer;
            transition: all 0.3s ease;
            box-shadow: 0 0 15px rgba(0, 240, 255, 0.4);
            text-decoration: none;
        }

        .fab-left::before {
            content: '';
            position: absolute;
            inset: -2px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--color-accent), var(--color-accent-secondary));
            z-index: -1;
            opacity: 0.8;
        }

        .fab-left:hover,
        .fab-left:focus {
            transform: scale(1.1);
            box-shadow: 0 0 30px rgba(0, 240, 255, 0.7);
            color: #fff;
        }

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

        .fab-left .notification-dot {
            position: absolute;
            top: 4px;
            right: 4px;
            width: 12px;
            height: 12px;
            background: var(--color-danger);
            border-radius: 50%;
            border: 2px solid var(--color-bg-primary);
            animation: blink-dot 1.2s ease-in-out infinite;
        }

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

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

            .article-sidebar {
                position: static;
                display: grid;
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }

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

        @media (max-width: 768px) {
            .mobile-toggle {
                display: flex;
            }

            .main-nav {
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: var(--color-bg-secondary);
                border-bottom: 1px solid var(--color-border);
                flex-direction: column;
                align-items: stretch;
                padding: 12px 20px;
                gap: 4px;
                display: none;
                box-shadow: var(--shadow-lg);
            }

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

            .main-nav a {
                padding: 14px 16px;
                font-size: 1rem;
            }

            .header-inner {
                flex-wrap: wrap;
            }

            .logo {
                max-width: 220px;
                font-size: 0.95rem;
            }

            .header-actions {
                gap: 8px;
            }

            .btn-login {
                padding: 8px 14px;
                font-size: 0.82rem;
            }

            .btn-signup {
                padding: 8px 16px;
                font-size: 0.82rem;
            }

            .article-hero {
                padding-top: 120px;
                padding-bottom: 32px;
            }

            .article-hero h1 {
                font-size: 1.6rem;
            }

            .article-body {
                padding: 24px 20px;
                font-size: 0.95rem;
            }

            .article-sidebar {
                grid-template-columns: 1fr;
            }

            .countdown-bar {
                flex-direction: column;
                align-items: flex-start;
                gap: 12px;
            }

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

            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 16px;
            }

            .fab-left {
                left: 16px;
                bottom: 80px;
                width: 48px;
                height: 48px;
                font-size: 1.2rem;
            }
        }

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

            .logo {
                max-width: 160px;
                font-size: 0.82rem;
            }

            .logo-icon {
                width: 36px;
                height: 36px;
                font-size: 1.1rem;
            }

            .btn-login,
            .btn-signup {
                padding: 8px 12px;
                font-size: 0.78rem;
            }

            .article-hero h1 {
                font-size: 1.4rem;
            }

            .article-hero .article-excerpt {
                font-size: 1rem;
            }

            .btn-primary-cta,
            .btn-outline-cta {
                padding: 12px 20px;
                font-size: 0.9rem;
            }

            .article-body {
                padding: 20px 16px;
                font-size: 0.9rem;
            }

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

            .article-body h3 {
                font-size: 1.15rem;
            }
        }

/* roulang page: category1 */
:root {
            --color-primary: #0A2E1C;
            --color-primary-light: #123E25;
            --color-accent: #FFD700;
            --color-accent-dark: #D4AC0D;
            --color-red: #D32F2F;
            --color-text: #FFFFFF;
            --color-text-muted: #D1F2EB;
            --color-bg-dark: #0A2E1C;
            --color-border: rgba(255, 215, 0, 0.25);
            --color-card-bg: rgba(18, 62, 37, 0.85);
            --color-shadow: rgba(0, 0, 0, 0.45);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --space-xs: 8px;
            --space-sm: 16px;
            --space-md: 24px;
            --space-lg: 40px;
            --space-xl: 64px;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-main: 'Segoe UI', 'Roboto', -apple-system, BlinkMacSystemFont, sans-serif;
        }

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

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

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

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

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

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

        /* Header & Navigation */
        .site-header {
            background: rgba(10, 46, 28, 0.95);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--color-border);
            position: sticky;
            top: 0;
            z-index: 1000;
            padding: 12px 0;
        }

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

        .logo {
            font-weight: 800;
            font-size: 1.3rem;
            color: var(--color-accent);
            letter-spacing: -0.02em;
            line-height: 1.3;
            max-width: 380px;
        }

        .logo a {
            color: var(--color-accent);
            display: inline-block;
        }

        .logo a:hover {
            color: #FFF;
        }

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

        .main-nav li a {
            display: inline-block;
            padding: 10px 16px;
            border-radius: 50px;
            color: var(--color-text-muted);
            font-weight: 600;
            font-size: 0.92rem;
            border: 1px solid transparent;
            white-space: nowrap;
        }

        .main-nav li a:hover,
        .main-nav li a:focus-visible {
            color: var(--color-accent);
            border-color: var(--color-border);
            background: rgba(255, 215, 0, 0.08);
            outline: none;
        }

        .main-nav li a.active {
            color: var(--color-primary);
            background: var(--color-accent);
            border-color: var(--color-accent);
            box-shadow: 0 4px 14px rgba(255, 215, 0, 0.3);
        }

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

        .btn-login {
            background: transparent;
            color: var(--color-accent);
            border: 1px solid var(--color-border);
            padding: 10px 20px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 0.9rem;
        }

        .btn-login:hover {
            background: rgba(255, 215, 0, 0.1);
            border-color: var(--color-accent);
        }

        .btn-signup {
            background: var(--color-accent);
            color: var(--color-primary);
            border: none;
            padding: 10px 22px;
            border-radius: 50px;
            font-weight: 800;
            font-size: 0.9rem;
            box-shadow: 0 4px 14px rgba(255, 215, 0, 0.35);
        }

        .btn-signup:hover {
            background: #FFF;
            color: var(--color-primary);
            box-shadow: 0 6px 20px rgba(255, 215, 0, 0.5);
            transform: translateY(-1px);
        }

        /* Mobile Menu Toggle */
        .menu-toggle {
            display: none;
            background: transparent;
            border: 1px solid var(--color-border);
            color: var(--color-accent);
            width: 44px;
            height: 44px;
            border-radius: 10px;
            font-size: 1.4rem;
            align-items: center;
            justify-content: center;
            cursor: pointer;
        }

        /* Hero Section */
        .page-hero {
            background-image: linear-gradient(rgba(10, 46, 28, 0.82), rgba(10, 46, 28, 0.95)), url('/assets/images/backpic/back-1.jpg');
            background-size: cover;
            background-position: center;
            padding: 70px 0 60px;
            position: relative;
            border-bottom: 2px solid var(--color-border);
        }

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

        .hero-badge {
            display: inline-block;
            background: var(--color-red);
            color: #FFF;
            font-weight: 800;
            padding: 6px 16px;
            border-radius: 50px;
            font-size: 0.8rem;
            letter-spacing: 0.03em;
            margin-bottom: 16px;
            text-transform: uppercase;
        }

        .page-hero h1 {
            font-size: 2.6rem;
            font-weight: 800;
            line-height: 1.25;
            color: var(--color-accent);
            margin-bottom: 16px;
            letter-spacing: -0.01em;
        }

        .page-hero .hero-sub {
            font-size: 1.15rem;
            color: var(--color-text-muted);
            max-width: 700px;
            line-height: 1.6;
        }

        /* Main Content */
        .main-content {
            padding: 60px 0;
        }

        .section-title {
            font-size: 1.9rem;
            font-weight: 800;
            color: var(--color-accent);
            margin-bottom: 12px;
            line-height: 1.3;
            letter-spacing: -0.01em;
        }

        .section-desc {
            font-size: 1.05rem;
            color: var(--color-text-muted);
            max-width: 800px;
            line-height: 1.65;
            margin-bottom: 32px;
        }

        .divider {
            height: 1px;
            background: linear-gradient(90deg, transparent, var(--color-border), transparent);
            margin: 40px 0;
        }

        /* Promo Cards Grid */
        .promo-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            margin: 32px 0;
        }

        .promo-card {
            background: var(--color-card-bg);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: var(--transition);
            position: relative;
        }

        .promo-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 12px 30px rgba(0, 0, 0, 0.4);
            border-color: var(--color-accent);
        }

        .promo-card img {
            width: 100%;
            height: 200px;
            object-fit: cover;
        }

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

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

        .promo-card p {
            color: var(--color-text-muted);
            font-size: 0.95rem;
            line-height: 1.55;
            margin-bottom: 16px;
        }

        .tag {
            display: inline-block;
            padding: 4px 12px;
            border-radius: 50px;
            font-size: 0.75rem;
            font-weight: 700;
            letter-spacing: 0.03em;
            background: rgba(255, 215, 0, 0.15);
            color: var(--color-accent);
            border: 1px solid var(--color-border);
            margin-right: 8px;
        }

        .tag-hot {
            background: var(--color-red);
            color: #FFF;
            border-color: var(--color-red);
        }

        /* Comparison Table */
        .comparison-table-wrap {
            overflow-x: auto;
            margin: 32px 0;
            border-radius: var(--radius-md);
            border: 1px solid var(--color-border);
        }

        .comparison-table {
            width: 100%;
            min-width: 700px;
            border-collapse: collapse;
            background: var(--color-card-bg);
        }

        .comparison-table th,
        .comparison-table td {
            padding: 16px 20px;
            text-align: left;
            border-bottom: 1px solid rgba(255, 215, 0, 0.12);
            color: var(--color-text);
            font-size: 0.95rem;
        }

        .comparison-table th {
            background: rgba(255, 215, 0, 0.08);
            color: var(--color-accent);
            font-weight: 800;
            text-transform: uppercase;
            font-size: 0.8rem;
            letter-spacing: 0.04em;
        }

        .comparison-table tr:hover td {
            background: rgba(255, 215, 0, 0.04);
        }

        /* Steps / Process */
        .process-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin: 32px 0;
        }

        .step-item {
            background: var(--color-card-bg);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            padding: 24px 20px;
            text-align: left;
            transition: var(--transition);
        }

        .step-item:hover {
            border-color: var(--color-accent);
            transform: translateY(-2px);
        }

        .step-number {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--color-accent);
            opacity: 0.5;
            margin-bottom: 8px;
        }

        .step-item h4 {
            font-size: 1.1rem;
            font-weight: 700;
            color: #FFF;
            margin-bottom: 8px;
        }

        .step-item p {
            color: var(--color-text-muted);
            font-size: 0.9rem;
            line-height: 1.5;
        }

        /* FAQ */
        .faq-list {
            margin: 32px 0;
        }

        .faq-item {
            border: 1px solid var(--color-border);
            border-radius: var(--radius-sm);
            margin-bottom: 12px;
            background: var(--color-card-bg);
            overflow: hidden;
        }

        .faq-question {
            padding: 18px 24px;
            font-weight: 700;
            font-size: 1.05rem;
            color: var(--color-accent);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            transition: var(--transition);
            user-select: none;
        }

        .faq-question:hover {
            background: rgba(255, 215, 0, 0.05);
        }

        .faq-question .fa-chevron-down {
            transition: var(--transition);
            font-size: 0.9rem;
        }

        .faq-item.open .fa-chevron-down {
            transform: rotate(180deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease;
            padding: 0 24px;
            color: var(--color-text-muted);
            font-size: 0.95rem;
            line-height: 1.6;
        }

        .faq-item.open .faq-answer {
            max-height: 500px;
            padding: 0 24px 20px;
        }

        /* CTA Section */
        .cta-section {
            background: linear-gradient(135deg, var(--color-primary-light), var(--color-primary));
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            padding: 48px 40px;
            margin: 40px 0;
            text-align: left;
            position: relative;
            overflow: hidden;
        }

        .cta-section::after {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(255, 215, 0, 0.15), transparent 70%);
            pointer-events: none;
        }

        .cta-section h2 {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--color-accent);
            margin-bottom: 12px;
            position: relative;
            z-index: 1;
        }

        .cta-section p {
            color: var(--color-text-muted);
            font-size: 1.05rem;
            max-width: 600px;
            margin-bottom: 24px;
            position: relative;
            z-index: 1;
        }

        .cta-buttons {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
            position: relative;
            z-index: 1;
        }

        .btn-primary {
            background: var(--color-accent);
            color: var(--color-primary);
            padding: 14px 32px;
            border-radius: 50px;
            font-weight: 800;
            font-size: 1rem;
            border: none;
            box-shadow: 0 6px 20px rgba(255, 215, 0, 0.4);
        }

        .btn-primary:hover {
            background: #FFF;
            transform: translateY(-2px);
            box-shadow: 0 8px 26px rgba(255, 215, 0, 0.55);
        }

        .btn-secondary {
            background: transparent;
            color: var(--color-accent);
            border: 2px solid var(--color-accent);
            padding: 12px 30px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 1rem;
        }

        .btn-secondary:hover {
            background: rgba(255, 215, 0, 0.1);
        }

        /* Footer */
        .site-footer {
            background: #062315;
            border-top: 2px solid var(--color-border);
            padding: 48px 0 24px;
            margin-top: 40px;
        }

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

        .footer-brand h3 {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--color-accent);
            margin-bottom: 12px;
            line-height: 1.4;
        }

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

        .footer-links h4 {
            color: var(--color-accent);
            font-size: 0.95rem;
            font-weight: 700;
            margin-bottom: 14px;
        }

        .footer-links ul {
            list-style: none;
        }

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

        .footer-links ul li a {
            color: var(--color-text-muted);
            font-size: 0.88rem;
            transition: var(--transition);
        }

        .footer-links ul li a:hover {
            color: var(--color-accent);
            padding-left: 4px;
        }

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 215, 0, 0.15);
        }

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

        .footer-badges {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }

        .footer-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--color-text-muted);
            font-size: 0.8rem;
            background: rgba(255, 215, 0, 0.06);
            padding: 6px 14px;
            border-radius: 50px;
            border: 1px solid var(--color-border);
        }

        .footer-badge i {
            color: var(--color-accent);
            font-size: 0.85rem;
        }

        /* FAB */
        .fab-left {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: 999;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: radial-gradient(circle at 30% 30%, #1C1C1E, #0A0A0A);
            border: 2px solid var(--color-accent);
            color: var(--color-accent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            cursor: pointer;
            box-shadow: 0 4px 20px rgba(255, 215, 0, 0.3);
            opacity: 0.75;
            animation: fab-float 3s ease-in-out infinite;
            transition: var(--transition);
            text-decoration: none;
        }

        .fab-left:hover {
            opacity: 1;
            transform: scale(1.1);
            box-shadow: 0 8px 28px rgba(255, 215, 0, 0.5);
        }

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

        .fab-left .notification-dot {
            position: absolute;
            top: 2px;
            right: 2px;
            width: 12px;
            height: 12px;
            background: #D32F2F;
            border-radius: 50%;
            border: 2px solid #0A0A0A;
            animation: blink 1.5s infinite;
        }

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

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

        /* Responsive */
        @media (max-width: 1024px) {
            .promo-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .process-steps {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            .header-inner {
                flex-wrap: nowrap;
            }
            .logo {
                font-size: 1rem;
                max-width: 220px;
            }
            .menu-toggle {
                display: flex;
            }
            .main-nav {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: rgba(10, 46, 28, 0.98);
                flex-direction: column;
                align-items: stretch;
                padding: 16px 20px;
                gap: 6px;
                border-bottom: 2px solid var(--color-border);
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav li a {
                display: block;
                width: 100%;
                text-align: left;
                padding: 12px 16px;
            }
            .header-actions {
                margin-left: auto;
            }
            .btn-login, .btn-signup {
                padding: 8px 14px;
                font-size: 0.8rem;
            }
            .page-hero h1 {
                font-size: 1.8rem;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .promo-grid {
                grid-template-columns: 1fr;
            }
            .process-steps {
                grid-template-columns: 1fr;
            }
            .cta-section {
                padding: 32px 24px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
            .fab-left {
                left: 12px;
                bottom: 80px;
                width: 48px;
                height: 48px;
                font-size: 1.2rem;
            }
        }

        @media (max-width: 520px) {
            .header-actions .btn-login {
                display: none;
            }
            .header-actions .btn-signup {
                display: inline-block;
            }
            .page-hero {
                padding: 50px 0 40px;
            }
            .page-hero h1 {
                font-size: 1.5rem;
            }
            .hero-sub {
                font-size: 0.95rem;
            }
            .section-title {
                font-size: 1.3rem;
            }
            .cta-section h2 {
                font-size: 1.4rem;
            }
            .cta-buttons {
                flex-direction: column;
            }
        }

/* roulang page: category2 */
:root {
            --color-bg: #0A0A0A;
            --color-bg-soft: #141414;
            --color-surface: #1C1C1E;
            --color-border: #2A2A2D;
            --color-text: #F5F5F7;
            --color-muted: #B0B0B8;
            --color-gold: #C5A059;
            --color-gold-bright: #FFBF00;
            --color-gold-deep: #A8842F;
            --color-red: #D32F2F;
            --color-white: #FFFFFF;
            --color-dark-overlay: rgba(0,0,0,0.75);
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 4px 12px rgba(0,0,0,0.2);
            --shadow-md: 0 8px 28px rgba(0,0,0,0.4);
            --shadow-gold: 0 8px 24px rgba(197,160,89,0.25);
            --font-heading: 'Georgia', 'Times New Roman', serif;
            --font-body: 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
            --transition: all 0.25s ease;
            --container-max: 1200px;
            --header-height: 72px;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            background-color: var(--color-bg);
            color: var(--color-text);
            font-family: var(--font-body);
            line-height: 1.6;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

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

        a:hover, a:focus {
            color: var(--color-gold);
            text-decoration: underline;
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding-left: 20px;
            padding-right: 20px;
        }

        /* Header / Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background-color: rgba(10,10,10,0.95);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--color-border);
            height: var(--header-height);
            display: flex;
            align-items: center;
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            gap: 16px;
        }

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

        .brand a {
            font-family: var(--font-heading);
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--color-gold-bright);
            letter-spacing: 0.5px;
            line-height: 1.2;
            text-decoration: none;
        }

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

        .brand-icon {
            width: 36px;
            height: 36px;
            background: linear-gradient(145deg, var(--color-gold-deep), var(--color-gold-bright));
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #1A1A1A;
            font-size: 1.1rem;
            font-weight: 700;
            flex-shrink: 0;
        }

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

        .main-nav li a {
            display: inline-block;
            padding: 10px 14px;
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--color-muted);
            border-radius: 6px;
            transition: var(--transition);
            white-space: nowrap;
            text-decoration: none;
        }

        .main-nav li a:hover {
            color: var(--color-gold-bright);
            background-color: rgba(197,160,89,0.1);
            text-decoration: none;
        }

        .main-nav li a.active {
            color: var(--color-gold-bright);
            background-color: rgba(197,160,89,0.15);
            font-weight: 600;
        }

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

        .btn-login {
            background: transparent;
            color: var(--color-text);
            border: 1px solid var(--color-border);
            padding: 8px 16px;
            border-radius: 6px;
            font-size: 0.9rem;
            font-weight: 500;
            cursor: pointer;
            transition: var(--transition);
            white-space: nowrap;
        }

        .btn-login:hover {
            border-color: var(--color-gold);
            color: var(--color-gold-bright);
        }

        .btn-signup {
            background: linear-gradient(145deg, var(--color-gold-deep), var(--color-gold-bright));
            color: #1A1A1A;
            border: none;
            padding: 8px 18px;
            border-radius: 6px;
            font-size: 0.9rem;
            font-weight: 700;
            cursor: pointer;
            transition: var(--transition);
            white-space: nowrap;
            box-shadow: 0 4px 14px rgba(255,191,0,0.3);
        }

        .btn-signup:hover {
            transform: translateY(-1px);
            box-shadow: 0 6px 20px rgba(255,191,0,0.45);
        }

        .nav-toggle {
            display: none;
            background: transparent;
            border: 1px solid var(--color-border);
            color: var(--color-text);
            font-size: 1.4rem;
            padding: 6px 12px;
            border-radius: 6px;
            cursor: pointer;
        }

        /* Hero / Banner */
        .page-hero {
            background-image: linear-gradient(rgba(10,10,10,0.82), rgba(10,10,10,0.92)), url('/assets/images/backpic/back-1.jpg');
            background-size: cover;
            background-position: center;
            padding: 70px 0 60px;
            border-bottom: 1px solid var(--color-border);
            position: relative;
        }

        .page-hero::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--color-gold-deep), var(--color-gold-bright), var(--color-gold-deep));
        }

        .hero-content {
            display: grid;
            grid-template-columns: 5fr 7fr;
            gap: 40px;
            align-items: center;
        }

        .hero-text h1 {
            font-family: var(--font-heading);
            font-size: 2.8rem;
            font-weight: 700;
            color: var(--color-gold-bright);
            line-height: 1.2;
            margin-bottom: 18px;
        }

        .hero-text .hero-subtitle {
            font-size: 1.15rem;
            color: var(--color-muted);
            margin-bottom: 24px;
            max-width: 520px;
        }

        .hero-kpis {
            display: flex;
            gap: 24px;
            flex-wrap: wrap;
            margin-top: 20px;
        }

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

        .hero-kpi .kpi-number {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--color-gold-bright);
            font-family: var(--font-heading);
        }

        .hero-kpi .kpi-label {
            font-size: 0.85rem;
            color: var(--color-muted);
        }

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

        .hero-image-wrap img {
            width: 100%;
            height: 340px;
            object-fit: cover;
        }

        .hero-image-tag {
            position: absolute;
            bottom: 16px;
            left: 16px;
            background-color: var(--color-gold-bright);
            color: #1A1A1A;
            font-weight: 700;
            font-size: 0.85rem;
            padding: 6px 14px;
            border-radius: 20px;
            box-shadow: var(--shadow-sm);
        }

        /* Main sections */
        .page-main {
            padding: 60px 0;
        }

        .section-block {
            margin-bottom: 70px;
        }

        .section-header {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            margin-bottom: 32px;
            border-bottom: 2px solid var(--color-border);
            padding-bottom: 16px;
        }

        .section-header h2 {
            font-family: var(--font-heading);
            font-size: 2rem;
            font-weight: 700;
            color: var(--color-text);
            margin: 0;
            line-height: 1.25;
        }

        .section-header .section-accent {
            color: var(--color-gold-bright);
            font-weight: 700;
            font-size: 0.95rem;
            letter-spacing: 1px;
            text-transform: uppercase;
        }

        .lead-paragraph {
            font-size: 1.1rem;
            color: var(--color-muted);
            max-width: 800px;
            margin-bottom: 30px;
            line-height: 1.65;
        }

        /* Comparison Table */
        .comparison-table {
            width: 100%;
            border-collapse: collapse;
            background-color: var(--color-bg-soft);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
        }

        .comparison-table thead th {
            background-color: var(--color-surface);
            color: var(--color-gold-bright);
            font-weight: 600;
            padding: 16px 18px;
            text-align: left;
            font-size: 0.95rem;
            border-bottom: 2px solid var(--color-gold-deep);
        }

        .comparison-table tbody td {
            padding: 14px 18px;
            border-bottom: 1px solid var(--color-border);
            font-size: 0.95rem;
            color: var(--color-text);
        }

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

        .comparison-table tbody tr:hover td {
            background-color: rgba(197,160,89,0.06);
        }

        .badge-high {
            background-color: rgba(211,47,47,0.2);
            color: #FF6B6B;
            font-weight: 600;
            padding: 2px 10px;
            border-radius: 20px;
            font-size: 0.8rem;
        }

        /* Feature list */
        .feature-list {
            list-style: none;
            padding: 0;
            margin: 0;
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 24px;
        }

        .feature-list li {
            background-color: var(--color-bg-soft);
            border-left: 4px solid var(--color-gold);
            padding: 20px 22px;
            border-radius: 8px;
            transition: var(--transition);
            box-shadow: var(--shadow-sm);
        }

        .feature-list li:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-md);
            border-left-color: var(--color-gold-bright);
        }

        .feature-list li strong {
            display: block;
            font-size: 1.1rem;
            color: var(--color-gold-bright);
            margin-bottom: 8px;
            font-weight: 600;
        }

        .feature-list li span {
            color: var(--color-muted);
            font-size: 0.95rem;
        }

        /* Steps / Timeline */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
            gap: 24px;
            margin-top: 20px;
        }

        .step-card {
            background-color: var(--color-bg-soft);
            padding: 24px;
            border-radius: var(--radius-md);
            border: 1px solid var(--color-border);
            transition: var(--transition);
            position: relative;
        }

        .step-card:hover {
            border-color: var(--color-gold-deep);
            box-shadow: var(--shadow-gold);
        }

        .step-number {
            font-family: var(--font-heading);
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--color-gold-bright);
            opacity: 0.8;
            margin-bottom: 8px;
        }

        .step-card h3 {
            font-size: 1.15rem;
            font-weight: 600;
            color: var(--color-text);
            margin-bottom: 10px;
        }

        .step-card p {
            color: var(--color-muted);
            font-size: 0.95rem;
            margin: 0;
        }

        /* FAQ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .faq-item {
            background-color: var(--color-bg-soft);
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--color-border);
            transition: var(--transition);
        }

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

        .faq-question {
            padding: 20px 24px;
            font-weight: 600;
            font-size: 1.05rem;
            color: var(--color-text);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            user-select: none;
            background: transparent;
            border: none;
            width: 100%;
            text-align: left;
            transition: var(--transition);
        }

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

        .faq-question .faq-icon {
            font-size: 1.2rem;
            color: var(--color-gold);
            transition: var(--transition);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease;
            background-color: rgba(197,160,89,0.05);
        }

        .faq-item.open .faq-answer {
            max-height: 500px;
        }

        .faq-item.open .faq-icon {
            transform: rotate(45deg);
            color: var(--color-gold-bright);
        }

        .faq-answer p {
            padding: 0 24px 20px;
            color: var(--color-muted);
            font-size: 0.95rem;
            margin: 0;
        }

        /* CTA */
        .cta-section {
            background: linear-gradient(145deg, rgba(197,160,89,0.15), rgba(10,10,10,0.95));
            border: 1px solid var(--color-gold-deep);
            border-radius: var(--radius-lg);
            padding: 50px 40px;
            text-align: left;
            box-shadow: var(--shadow-gold);
            margin-bottom: 0;
        }

        .cta-section h2 {
            font-family: var(--font-heading);
            font-size: 2rem;
            color: var(--color-gold-bright);
            margin-bottom: 12px;
        }

        .cta-section p {
            color: var(--color-muted);
            font-size: 1.05rem;
            max-width: 600px;
            margin-bottom: 24px;
        }

        .btn-cta {
            background: linear-gradient(145deg, var(--color-gold-deep), var(--color-gold-bright));
            color: #1A1A1A;
            border: none;
            padding: 14px 32px;
            border-radius: 8px;
            font-size: 1.05rem;
            font-weight: 700;
            cursor: pointer;
            transition: var(--transition);
            box-shadow: 0 6px 20px rgba(255,191,0,0.35);
            display: inline-block;
        }

        .btn-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 28px rgba(255,191,0,0.5);
            color: #1A1A1A;
            text-decoration: none;
        }

        /* Floating Action Button - Cyber & Neon Style (Option 2) */
        .fab {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: 999;
            display: flex;
            align-items: center;
            justify-content: center;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: rgba(0,0,0,0.75);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 2px solid transparent;
            background-clip: padding-box;
            box-shadow: 0 0 18px rgba(0,240,255,0.45), 0 4px 20px rgba(0,0,0,0.5);
            cursor: pointer;
            transition: var(--transition);
            opacity: 0.75;
            color: #00F0FF;
            font-size: 1.6rem;
            text-decoration: none;
        }

        .fab:hover {
            opacity: 1;
            box-shadow: 0 0 28px rgba(0,240,255,0.8), 0 8px 24px rgba(0,0,0,0.6);
            transform: scale(1.08);
            color: #FF79C6;
        }

        .fab:active {
            transform: scale(0.94);
        }

        .fab .fab-notification {
            position: absolute;
            top: 2px;
            right: 2px;
            width: 12px;
            height: 12px;
            background-color: #FF007F;
            border-radius: 50%;
            border: 2px solid #0A0A0A;
            animation: blink-notification 1.6s infinite;
        }

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

        /* Footer */
        .site-footer {
            background-color: #0A0A0A;
            border-top: 1px solid var(--color-border);
            padding: 50px 0 30px;
            margin-top: 30px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 30px;
            margin-bottom: 32px;
        }

        .footer-brand h3 {
            font-family: var(--font-heading);
            font-size: 1.3rem;
            color: var(--color-gold-bright);
            margin-bottom: 12px;
            line-height: 1.35;
        }

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

        .footer-links h4 {
            font-size: 1rem;
            font-weight: 600;
            color: var(--color-text);
            margin-bottom: 14px;
        }

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

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

        .footer-links ul li a {
            color: var(--color-muted);
            font-size: 0.9rem;
            transition: var(--transition);
            text-decoration: none;
        }

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

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

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

        .footer-badges {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }

        .footer-badge {
            background-color: var(--color-surface);
            color: var(--color-muted);
            padding: 6px 14px;
            border-radius: 20px;
            font-size: 0.8rem;
            border: 1px solid var(--color-border);
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .footer-badge i {
            color: var(--color-gold-bright);
            font-size: 0.8rem;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .hero-content {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .hero-image-wrap img {
                height: 260px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            .header-inner {
                flex-wrap: wrap;
                height: auto;
                padding: 10px 0;
            }
            .main-nav {
                order: 3;
                width: 100%;
                justify-content: flex-start;
                gap: 4px;
                overflow-x: auto;
                -webkit-overflow-scrolling: touch;
                padding-bottom: 6px;
            }
            .main-nav li a {
                padding: 8px 10px;
                font-size: 0.85rem;
            }
            .nav-actions {
                margin-left: auto;
            }
            .nav-actions .btn-login,
            .nav-actions .btn-signup {
                padding: 6px 12px;
                font-size: 0.8rem;
            }
            .hero-content {
                grid-template-columns: 1fr;
            }
            .hero-text h1 {
                font-size: 2rem;
            }
            .hero-kpis {
                gap: 16px;
            }
            .section-header h2 {
                font-size: 1.6rem;
            }
            .comparison-table {
                font-size: 0.85rem;
                overflow-x: auto;
                display: block;
                white-space: nowrap;
            }
            .comparison-table thead th,
            .comparison-table tbody td {
                padding: 10px 14px;
            }
            .feature-list {
                grid-template-columns: 1fr;
            }
            .steps-grid {
                grid-template-columns: 1fr;
            }
            .cta-section {
                padding: 30px 20px;
            }
            .fab {
                width: 48px;
                height: 48px;
                font-size: 1.3rem;
                bottom: 80px;
                left: 12px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding-left: 14px;
                padding-right: 14px;
            }
            .hero-text h1 {
                font-size: 1.7rem;
            }
            .hero-kpis .kpi-number {
                font-size: 1.4rem;
            }
            .nav-actions .btn-login,
            .nav-actions .btn-signup {
                padding: 5px 10px;
                font-size: 0.75rem;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
        }

/* roulang page: category3 */
:root {
            --color-bg: #0B0B0B;
            --color-bg-soft: #161616;
            --color-surface: #1C1C1E;
            --color-surface-alt: #242426;
            --color-accent: #FF4500;
            --color-accent-hover: #FF6A2B;
            --color-accent-soft: rgba(255, 69, 0, 0.12);
            --color-fire: #FF0000;
            --color-text: #FFFFFF;
            --color-text-soft: #CCCCCC;
            --color-text-muted: #999999;
            --color-border: #2E2E32;
            --color-border-accent: rgba(255, 69, 0, 0.35);
            --color-gold: #FFB300;
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 22px;
            --shadow-sm: 0 2px 10px rgba(0,0,0,0.35);
            --shadow-md: 0 8px 24px rgba(0,0,0,0.5);
            --shadow-accent: 0 6px 22px rgba(255,69,0,0.28);
            --font-main: 'Inter', 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

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

        body {
            font-family: var(--font-main);
            background-color: var(--color-bg);
            color: var(--color-text);
            line-height: 1.65;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

        a:hover {
            color: var(--color-accent-hover);
            text-decoration: none;
        }

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

        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: 100%;
            line-height: 1.5;
        }

        button:focus-visible,
        a:focus-visible,
        input:focus-visible,
        textarea:focus-visible,
        select:focus-visible {
            outline: 3px solid rgba(255, 69, 0, 0.55);
            outline-offset: 2px;
        }

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

        /* Header & Navigation */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 100;
            background: rgba(11, 11, 11, 0.94);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--color-border);
            transition: var(--transition);
        }

        .site-header.scrolled {
            background: rgba(11, 11, 11, 0.98);
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.55);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 70px;
            gap: 16px;
        }

        .brand {
            display: flex;
            align-items: center;
            gap: 10px;
            min-width: 0;
        }

        .brand-icon {
            width: 42px;
            height: 42px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--color-accent), var(--color-fire));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: #fff;
            flex-shrink: 0;
            box-shadow: var(--shadow-accent);
        }

        .brand-name {
            font-size: 1.05rem;
            font-weight: 700;
            color: #fff;
            line-height: 1.25;
            letter-spacing: -0.01em;
            word-break: break-word;
            max-width: 280px;
        }

        .brand-name span {
            color: var(--color-accent);
        }

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

        .main-nav li {
            margin: 0;
        }

        .main-nav a {
            display: block;
            padding: 10px 16px;
            border-radius: 999px;
            color: var(--color-text-soft);
            font-weight: 500;
            font-size: 0.93rem;
            transition: var(--transition);
            white-space: nowrap;
        }

        .main-nav a:hover {
            color: #fff;
            background: rgba(255, 255, 255, 0.06);
        }

        .main-nav a.active {
            color: #fff;
            background: var(--color-accent);
            box-shadow: var(--shadow-accent);
        }

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

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 11px 22px;
            border-radius: 999px;
            font-weight: 600;
            font-size: 0.95rem;
            cursor: pointer;
            border: none;
            transition: var(--transition);
            text-align: center;
            line-height: 1.4;
        }

        .btn-outline {
            background: transparent;
            color: #fff;
            border: 1.5px solid var(--color-border);
        }

        .btn-outline:hover {
            border-color: var(--color-accent);
            color: var(--color-accent);
            background: rgba(255, 69, 0, 0.06);
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--color-accent), var(--color-fire));
            color: #fff;
            box-shadow: var(--shadow-accent);
        }

        .btn-primary:hover {
            background: linear-gradient(135deg, var(--color-accent-hover), #FF2D00);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 10px 28px rgba(255, 69, 0, 0.4);
        }

        .btn-lg {
            padding: 14px 30px;
            font-size: 1.05rem;
        }

        .btn-sm {
            padding: 8px 16px;
            font-size: 0.85rem;
        }

        .nav-toggle {
            display: none;
            background: none;
            border: none;
            color: #fff;
            font-size: 1.6rem;
            cursor: pointer;
            padding: 6px 10px;
            border-radius: 8px;
        }

        /* Mobile nav */
        .mobile-nav {
            display: none;
            background: var(--color-bg-soft);
            border-top: 1px solid var(--color-border);
            padding: 12px 20px 20px;
        }

        .mobile-nav .main-nav {
            flex-direction: column;
            align-items: stretch;
            gap: 4px;
        }

        .mobile-nav .main-nav a {
            padding: 12px 16px;
            border-radius: var(--radius-sm);
        }

        .mobile-nav .header-actions {
            flex-direction: row;
            margin-top: 12px;
        }

        .mobile-nav .btn {
            flex: 1;
        }

        .mobile-nav.is-open {
            display: block;
        }

        /* Hero */
        .page-hero {
            padding: 130px 0 70px;
            background: linear-gradient(165deg, #0B0B0B 0%, #1A0D05 45%, #1C0A02 100%);
            position: relative;
            overflow: hidden;
            border-bottom: 1px solid var(--color-border-accent);
        }

        .page-hero::before {
            content: "";
            position: absolute;
            top: -120px;
            right: -80px;
            width: 420px;
            height: 420px;
            background: radial-gradient(circle, rgba(255, 69, 0, 0.22), transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .page-hero::after {
            content: "";
            position: absolute;
            bottom: -140px;
            left: -100px;
            width: 360px;
            height: 360px;
            background: radial-gradient(circle, rgba(255, 0, 0, 0.16), transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero-grid {
            display: grid;
            grid-template-columns: 1.05fr 0.95fr;
            gap: 50px;
            align-items: center;
            position: relative;
            z-index: 2;
        }

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

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 16px;
            background: var(--color-accent-soft);
            border: 1px solid var(--color-border-accent);
            border-radius: 999px;
            color: var(--color-accent);
            font-weight: 600;
            font-size: 0.85rem;
            letter-spacing: 0.02em;
            margin-bottom: 22px;
        }

        .hero-badge i {
            font-size: 0.9rem;
        }

        .hero-title {
            font-size: clamp(2.1rem, 4.6vw, 3.5rem);
            font-weight: 800;
            line-height: 1.18;
            letter-spacing: -0.02em;
            color: #fff;
            margin-bottom: 20px;
        }

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

        .hero-subtitle {
            font-size: 1.15rem;
            color: var(--color-text-soft);
            line-height: 1.7;
            margin-bottom: 30px;
            max-width: 540px;
        }

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

        .hero-image {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: 0 20px 50px rgba(0, 0, 0, 0.6), 0 0 0 1px var(--color-border);
        }

        .hero-image img {
            width: 100%;
            height: 100%;
            min-height: 360px;
            object-fit: cover;
        }

        .hero-image::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(200deg, rgba(255, 69, 0, 0.12) 0%, transparent 40%, rgba(0, 0, 0, 0.45) 100%);
            pointer-events: none;
        }

        .hero-stat-chip {
            position: absolute;
            bottom: 18px;
            left: 18px;
            z-index: 3;
            display: flex;
            align-items: center;
            gap: 10px;
            background: rgba(11, 11, 11, 0.88);
            backdrop-filter: blur(10px);
            padding: 10px 18px;
            border-radius: 999px;
            border: 1px solid var(--color-border-accent);
        }

        .hero-stat-chip i {
            color: var(--color-gold);
            font-size: 1.1rem;
        }

        .hero-stat-chip span {
            font-weight: 600;
            font-size: 0.9rem;
            color: #fff;
        }

        /* Section common */
        .section {
            padding: 70px 0;
        }

        .section-alt {
            background: var(--color-bg-soft);
            border-top: 1px solid var(--color-border);
            border-bottom: 1px solid var(--color-border);
        }

        .section-heading {
            text-align: left;
            margin-bottom: 40px;
        }

        .section-heading h2 {
            font-size: clamp(1.7rem, 3.2vw, 2.4rem);
            font-weight: 700;
            color: #fff;
            letter-spacing: -0.015em;
            margin-bottom: 10px;
        }

        .section-heading p {
            font-size: 1.05rem;
            color: var(--color-text-soft);
            max-width: 680px;
            line-height: 1.7;
        }

        /* Promo timeline / cards */
        .promo-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 28px;
        }

        .promo-card {
            background: var(--color-surface);
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--color-border);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }

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

        .promo-card-media {
            position: relative;
            height: 200px;
            overflow: hidden;
        }

        .promo-card-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

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

        .promo-card-tag {
            position: absolute;
            top: 14px;
            left: 14px;
            padding: 6px 14px;
            background: var(--color-accent);
            color: #fff;
            font-weight: 700;
            font-size: 0.78rem;
            border-radius: 999px;
            letter-spacing: 0.03em;
            z-index: 2;
            box-shadow: var(--shadow-accent);
        }

        .promo-card-body {
            padding: 22px 24px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .promo-card-body h3 {
            font-size: 1.25rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 10px;
            line-height: 1.35;
        }

        .promo-card-body p {
            color: var(--color-text-soft);
            font-size: 0.95rem;
            line-height: 1.7;
            margin-bottom: 16px;
            flex: 1;
        }

        .promo-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-bottom: 16px;
        }

        .promo-meta span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.82rem;
            color: var(--color-text-muted);
            background: rgba(255, 255, 255, 0.04);
            padding: 6px 12px;
            border-radius: 999px;
        }

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

        .promo-card-footer {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
        }

        .promo-value {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--color-gold);
            line-height: 1.2;
        }

        .promo-value small {
            font-size: 0.75rem;
            font-weight: 500;
            color: var(--color-text-muted);
            display: block;
        }

        /* Steps / process */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .step-card {
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            padding: 28px 22px;
            transition: var(--transition);
            text-align: left;
        }

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

        .step-number {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--color-accent-soft);
            color: var(--color-accent);
            font-weight: 800;
            font-size: 1.15rem;
            margin-bottom: 16px;
            border: 1.5px solid var(--color-border-accent);
        }

        .step-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 8px;
        }

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

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

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

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

        .faq-question {
            width: 100%;
            background: none;
            border: none;
            padding: 20px 24px;
            text-align: left;
            color: #fff;
            font-size: 1.05rem;
            font-weight: 600;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            transition: var(--transition);
        }

        .faq-question i {
            color: var(--color-accent);
            font-size: 1rem;
            transition: transform 0.3s ease;
            flex-shrink: 0;
        }

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

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

        .faq-item.open .faq-answer {
            max-height: 320px;
            padding: 0 24px 20px;
        }

        .faq-answer p {
            color: var(--color-text-soft);
            font-size: 0.95rem;
            line-height: 1.7;
            margin: 0;
        }

        /* CTA */
        .cta-band {
            background: linear-gradient(140deg, #1A0D05 0%, #2A1200 50%, #1C0A02 100%);
            border-radius: var(--radius-lg);
            padding: 50px 40px;
            text-align: left;
            border: 1px solid var(--color-border-accent);
            position: relative;
            overflow: hidden;
        }

        .cta-band::before {
            content: "";
            position: absolute;
            top: -80px;
            right: -60px;
            width: 280px;
            height: 280px;
            background: radial-gradient(circle, rgba(255, 69, 0, 0.3), transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-band h2 {
            font-size: clamp(1.6rem, 3vw, 2.2rem);
            font-weight: 800;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: -0.015em;
        }

        .cta-band p {
            font-size: 1.05rem;
            color: var(--color-text-soft);
            max-width: 560px;
            line-height: 1.7;
            margin-bottom: 26px;
        }

        /* Footer */
        .site-footer {
            background: var(--color-bg-soft);
            border-top: 1px solid var(--color-border);
            padding: 50px 0 24px;
            margin-top: auto;
        }

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

        .footer-brand h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: #fff;
            line-height: 1.45;
            margin-bottom: 12px;
        }

        .footer-brand p {
            font-size: 0.9rem;
            color: var(--color-text-muted);
            line-height: 1.7;
            margin: 0;
        }

        .footer-links h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
        }

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

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

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

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

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

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

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

        .footer-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 14px;
            border-radius: 999px;
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid var(--color-border);
            font-size: 0.78rem;
            color: var(--color-text-soft);
            font-weight: 500;
        }

        .footer-badge i {
            color: var(--color-accent);
            font-size: 0.8rem;
        }

        /* FAB */
        .fab-left {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: 90;
            display: flex;
            align-items: center;
            justify-content: center;
            width: 56px;
            height: 56px;
            border-radius: 16px;
            background: rgba(11, 11, 11, 0.75);
            backdrop-filter: blur(10px);
            border: 2px solid transparent;
            background-image: linear-gradient(rgba(11, 11, 11, 0.75), rgba(11, 11, 11, 0.75)), linear-gradient(135deg, #CCFF00, #00F0FF);
            background-origin: border-box;
            background-clip: padding-box, border-box;
            color: #fff;
            font-size: 1.4rem;
            cursor: pointer;
            transition: var(--transition);
            opacity: 0.6;
            box-shadow: 0 0 18px rgba(0, 240, 255, 0.4);
            animation: fabBreathe 3.2s ease-in-out infinite;
        }

        .fab-left:hover {
            opacity: 1;
            transform: scale(1.1);
            box-shadow: 0 0 28px rgba(0, 240, 255, 0.65);
        }

        .fab-left:active {
            transform: scale(0.95);
            border-color: #FF007F;
        }

        @keyframes fabBreathe {
            0%, 100% { opacity: 0.6; }
            50% { opacity: 0.9; }
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .hero-grid {
                grid-template-columns: 1fr;
                gap: 36px;
            }
            .hero-image {
                max-height: 320px;
            }
            .hero-image img {
                min-height: 280px;
            }
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 28px;
            }
        }

        @media (max-width: 768px) {
            .header-inner {
                min-height: 62px;
            }
            .brand-name {
                font-size: 0.9rem;
                max-width: 200px;
            }
            .nav-toggle {
                display: block;
            }
            .desktop-nav {
                display: none;
            }
            .header-actions.desktop-actions {
                display: none;
            }
            .mobile-nav .main-nav a {
                font-size: 0.95rem;
            }
            .page-hero {
                padding: 100px 0 50px;
            }
            .section {
                padding: 50px 0;
            }
            .promo-grid {
                grid-template-columns: 1fr;
            }
            .steps-grid {
                grid-template-columns: 1fr;
            }
            .cta-band {
                padding: 36px 24px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                text-align: left;
            }
            .fab-left {
                bottom: 80px;
                left: 12px;
                width: 50px;
                height: 50px;
                font-size: 1.2rem;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .brand-name {
                font-size: 0.82rem;
                max-width: 150px;
            }
            .brand-icon {
                width: 36px;
                height: 36px;
                font-size: 17px;
            }
            .hero-title {
                font-size: 1.9rem;
            }
            .hero-subtitle {
                font-size: 1rem;
            }
            .btn-lg {
                padding: 12px 22px;
                font-size: 0.95rem;
            }
            .section-heading h2 {
                font-size: 1.55rem;
            }
            .promo-card-media {
                height: 170px;
            }
            .promo-card-body {
                padding: 18px 18px 20px;
            }
            .promo-card-body h3 {
                font-size: 1.1rem;
            }
            .promo-value {
                font-size: 1.25rem;
            }
        }