/* roulang page: index */
:root {
            --bg-primary: #07070D;
            --bg-secondary: #0E0E1E;
            --bg-card: rgba(14, 14, 30, 0.85);
            --bg-glass: rgba(14, 14, 30, 0.65);
            --accent-lime: #A3E635;
            --accent-cyan: #06B6D4;
            --accent-pink: #F43F5E;
            --text-primary: #FFFFFF;
            --text-secondary: #94A3B8;
            --text-muted: #64748B;
            --border-glow: rgba(6, 182, 212, 0.35);
            --border-subtle: rgba(148, 163, 184, 0.18);
            --radius-md: 12px;
            --radius-lg: 18px;
            --radius-xl: 24px;
            --radius-2xl: 32px;
            --shadow-neon: 0 0 15px rgba(163, 230, 53, 0.4);
            --shadow-cyan: 0 0 20px rgba(6, 182, 212, 0.45);
            --shadow-elevation: 0 18px 40px rgba(0, 0, 0, 0.7);
            --spacing-xs: 0.5rem;
            --spacing-sm: 1rem;
            --spacing-md: 1.8rem;
            --spacing-lg: 3.2rem;
            --spacing-xl: 5rem;
            --spacing-2xl: 7rem;
            --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-smooth: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            --font-heading: 'Segoe UI', 'Inter', system-ui, -apple-system, sans-serif;
            --font-body: 'Segoe UI', 'Inter', system-ui, -apple-system, sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
            background-color: var(--bg-primary);
        }

        body {
            font-family: var(--font-body);
            background: linear-gradient(175deg, #07070D 0%, #0E0E1E 55%, #07070D 100%);
            background-attachment: fixed;
            color: var(--text-primary);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            min-height: 100vh;
            overflow-x: hidden;
        }

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

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

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

        button,
        .btn {
            cursor: pointer;
            font-family: var(--font-body);
            border: none;
            outline: none;
            font-weight: 600;
            letter-spacing: 0.015em;
            transition: all var(--transition-smooth);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            white-space: nowrap;
        }

        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 var(--spacing-sm);
        }

        @media (min-width: 768px) {
            .container {
                padding: 0 var(--spacing-md);
            }
        }

        /* Header & Navigation */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 60;
            background: rgba(7, 7, 13, 0.78);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border-subtle);
            transition: background var(--transition-smooth);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0.75rem 0;
            gap: 1.2rem;
            flex-wrap: wrap;
        }

        .logo {
            font-family: var(--font-heading);
            font-weight: 800;
            font-size: 1.25rem;
            letter-spacing: -0.4px;
            color: var(--text-primary);
            display: flex;
            align-items: center;
            gap: 0.45rem;
            line-height: 1.2;
            background: linear-gradient(135deg, #A3E635, #38BDF8);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .logo i {
            font-size: 1.6rem;
            background: linear-gradient(135deg, var(--accent-lime), var(--accent-cyan));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 1.8rem;
            list-style: none;
            font-weight: 500;
            font-size: 0.92rem;
        }

        .nav-links a {
            padding: 0.4rem 0;
            position: relative;
            color: var(--text-secondary);
            transition: color var(--transition-fast);
        }

        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: linear-gradient(90deg, var(--accent-cyan), var(--accent-lime));
            transition: width var(--transition-smooth);
            border-radius: 4px;
        }

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

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

        .header-actions {
            display: flex;
            align-items: center;
            gap: 0.7rem;
        }

        .btn-login {
            background: transparent;
            color: var(--text-primary);
            border: 1px solid var(--border-subtle);
            padding: 0.5rem 1.2rem;
            border-radius: 30px;
            font-size: 0.9rem;
            font-weight: 600;
            transition: all var(--transition-fast);
        }

        .btn-login:hover {
            border-color: var(--accent-cyan);
            box-shadow: 0 0 12px rgba(6, 182, 212, 0.25);
            transform: translateY(-1px);
        }

        .btn-signup {
            background: linear-gradient(135deg, #A3E635, #06B6D4);
            color: #07070D;
            padding: 0.5rem 1.3rem;
            border-radius: 30px;
            font-size: 0.9rem;
            font-weight: 700;
            box-shadow: var(--shadow-neon);
            transition: all var(--transition-smooth);
        }

        .btn-signup:hover {
            box-shadow: 0 0 22px rgba(163, 230, 53, 0.6);
            transform: translateY(-2px);
            color: #07070D;
        }

        .mobile-menu-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--text-primary);
            font-size: 1.6rem;
            padding: 0.3rem;
        }

        @media (max-width: 960px) {
            .nav-links {
                gap: 1rem;
                font-size: 0.85rem;
            }

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

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

            .nav-links {
                display: none;
                flex-direction: column;
                width: 100%;
                background: rgba(7, 7, 13, 0.96);
                backdrop-filter: blur(20px);
                padding: 1rem 1.2rem;
                border-radius: var(--radius-md);
                margin-top: 0.7rem;
                gap: 1rem;
                border: 1px solid var(--border-subtle);
            }

            .nav-links.mobile-active {
                display: flex;
            }

            .header-actions {
                gap: 0.5rem;
            }

            .btn-login,
            .btn-signup {
                font-size: 0.8rem;
                padding: 0.45rem 1rem;
            }

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

        /* Hero Section */
        .hero {
            padding: 8rem 0 4.5rem;
            position: relative;
            background: radial-gradient(ellipse at 30% 20%, rgba(6, 182, 212, 0.12) 0%, transparent 65%),
                radial-gradient(ellipse at 80% 70%, rgba(163, 230, 53, 0.07) 0%, transparent 60%),
                var(--bg-primary);
            overflow: hidden;
        }

        .hero::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: url('/assets/images/backpic/back-3.jpg') center/cover no-repeat;
            opacity: 0.08;
            z-index: 0;
            pointer-events: none;
        }

        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 780px;
            margin: 0 auto;
            text-align: center;
        }

        .hero-roadmap-label {
            display: inline-block;
            background: rgba(6, 182, 212, 0.18);
            border: 1px solid rgba(6, 182, 212, 0.45);
            color: var(--accent-cyan);
            padding: 0.35rem 1.2rem;
            border-radius: 30px;
            font-size: 0.82rem;
            font-weight: 600;
            letter-spacing: 0.04em;
            margin-bottom: 1.5rem;
            backdrop-filter: blur(8px);
        }

        .hero h1 {
            font-family: var(--font-heading);
            font-size: clamp(2.4rem, 7vw, 3.9rem);
            font-weight: 900;
            line-height: 1.15;
            letter-spacing: -0.5px;
            margin-bottom: 1.3rem;
            background: linear-gradient(180deg, #FFFFFF 20%, #A3E635 75%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero p {
            font-size: 1.08rem;
            color: var(--text-secondary);
            max-width: 640px;
            margin: 0 auto 2.2rem;
            line-height: 1.7;
            text-wrap: pretty;
        }

        .hero-actions {
            display: flex;
            gap: 1rem;
            justify-content: center;
            flex-wrap: wrap;
            margin-bottom: 2.8rem;
        }

        .btn-primary {
            background: linear-gradient(135deg, #06B6D4, #A3E635);
            color: #07070D;
            padding: 0.9rem 2.5rem;
            border-radius: 50px;
            font-size: 1.05rem;
            font-weight: 700;
            box-shadow: var(--shadow-cyan);
        }

        .btn-primary:hover {
            box-shadow: 0 0 28px rgba(6, 182, 212, 0.6);
            transform: translateY(-2px);
            color: #07070D;
        }

        .btn-outline {
            background: transparent;
            border: 2px solid var(--accent-lime);
            color: var(--accent-lime);
            padding: 0.85rem 2.4rem;
            border-radius: 50px;
            font-size: 1.05rem;
            font-weight: 700;
        }

        .btn-outline:hover {
            background: rgba(163, 230, 53, 0.1);
            box-shadow: 0 0 18px rgba(163, 230, 53, 0.3);
            transform: translateY(-2px);
            color: var(--accent-lime);
        }

        .roadmap-track {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 0;
            flex-wrap: wrap;
            margin-top: 1.5rem;
            color: var(--text-secondary);
            font-size: 0.88rem;
        }

        .roadmap-node {
            background: var(--bg-glass);
            border: 1px solid var(--border-subtle);
            border-radius: 30px;
            padding: 0.5rem 1.3rem;
            backdrop-filter: blur(10px);
            font-weight: 600;
            color: var(--text-primary);
            white-space: nowrap;
            position: relative;
        }

        .roadmap-node.active-node {
            border-color: var(--accent-cyan);
            box-shadow: 0 0 14px rgba(6, 182, 212, 0.3);
            background: rgba(6, 182, 212, 0.12);
        }

        .roadmap-divider {
            width: 28px;
            height: 2px;
            background: linear-gradient(90deg, var(--accent-cyan), var(--accent-lime));
            margin: 0 0.3rem;
            border-radius: 4px;
        }

        @media (max-width: 600px) {
            .hero {
                padding: 6.5rem 0 3.5rem;
            }

            .roadmap-track {
                gap: 0.3rem;
            }

            .roadmap-node {
                font-size: 0.78rem;
                padding: 0.4rem 1rem;
            }

            .roadmap-divider {
                width: 18px;
            }
        }

        /* Section Base */
        .section {
            padding: var(--spacing-xl) 0;
            position: relative;
            z-index: 3;
        }

        .section-header {
            margin-bottom: var(--spacing-lg);
        }

        .section-tag {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 700;
            letter-spacing: 0.06em;
            color: var(--accent-cyan);
            background: rgba(6, 182, 212, 0.1);
            padding: 0.25rem 1rem;
            border-radius: 20px;
            margin-bottom: 0.7rem;
            border: 1px solid rgba(6, 182, 212, 0.3);
        }

        .section h2 {
            font-family: var(--font-heading);
            font-size: clamp(2rem, 5.5vw, 2.7rem);
            font-weight: 800;
            margin-bottom: 0.8rem;
            letter-spacing: -0.3px;
            line-height: 1.2;
        }

        .section p.subtitle {
            color: var(--text-secondary);
            font-size: 1.05rem;
            max-width: 700px;
            line-height: 1.65;
        }

        /* Pain Points Grid */
        .pain-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
            gap: 1.8rem;
        }

        .pain-card {
            background: var(--bg-glass);
            backdrop-filter: blur(14px);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 2rem 1.5rem;
            transition: all var(--transition-smooth);
        }

        .pain-card:hover {
            border-color: var(--accent-pink);
            box-shadow: 0 0 22px rgba(244, 63, 94, 0.18);
            transform: translateY(-5px);
        }

        .pain-icon {
            font-size: 2.4rem;
            background: linear-gradient(135deg, var(--accent-pink), var(--accent-cyan));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            margin-bottom: 1rem;
            display: inline-block;
        }

        .pain-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 0.7rem;
        }

        .pain-card p {
            color: var(--text-secondary);
            font-size: 0.93rem;
            line-height: 1.6;
        }

        /* Solution Highlight */
        .solution-bento {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 2rem;
            align-items: center;
        }

        @media (max-width: 768px) {
            .solution-bento {
                grid-template-columns: 1fr;
            }
        }

        .solution-visual {
            background: var(--bg-glass);
            border-radius: var(--radius-xl);
            padding: 2rem;
            border: 1px solid var(--border-subtle);
            backdrop-filter: blur(14px);
            text-align: center;
        }

        .solution-visual img {
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-elevation);
        }

        .solution-list {
            display: flex;
            flex-direction: column;
            gap: 1.5rem;
        }

        .solution-item {
            display: flex;
            gap: 1rem;
            align-items: flex-start;
        }

        .solution-item i {
            font-size: 1.8rem;
            color: var(--accent-lime);
            margin-top: 0.2rem;
            flex-shrink: 0;
        }

        .solution-item h4 {
            font-weight: 700;
            margin-bottom: 0.3rem;
        }

        .solution-item p {
            color: var(--text-secondary);
            font-size: 0.93rem;
        }

        /* Scene Demo */
        .scene-cards {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 1.5rem;
        }

        .scene-card {
            background: var(--bg-glass);
            backdrop-filter: blur(10px);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 1.8rem 1.2rem;
            text-align: left;
            transition: all var(--transition-smooth);
        }

        .scene-card:hover {
            border-color: var(--accent-cyan);
            box-shadow: 0 0 18px rgba(6, 182, 212, 0.25);
            transform: translateY(-4px);
        }

        .scene-card i {
            font-size: 2rem;
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-lime));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            margin-bottom: 1rem;
        }

        .scene-card h4 {
            font-weight: 700;
            margin-bottom: 0.5rem;
            color: var(--text-primary);
        }

        /* Social Proof */
        .social-proof-grid {
            display: flex;
            flex-wrap: wrap;
            gap: 2rem;
            justify-content: center;
        }

        .proof-item {
            background: var(--bg-glass);
            backdrop-filter: blur(12px);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-xl);
            padding: 2.2rem 2rem;
            text-align: center;
            flex: 1 1 220px;
            max-width: 300px;
        }

        .proof-number {
            font-size: 3rem;
            font-weight: 900;
            background: linear-gradient(135deg, var(--accent-lime), var(--accent-cyan));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .proof-label {
            color: var(--text-secondary);
            margin-top: 0.4rem;
            font-weight: 600;
        }

        /* News CMS Section */
        .news-grid {
            display: grid;
            grid-template-columns: 2fr 1fr;
            gap: 2rem;
            align-items: start;
        }

        @media (max-width: 768px) {
            .news-grid {
                grid-template-columns: 1fr;
            }
        }

        .news-list {
            display: flex;
            flex-direction: column;
            gap: 1.2rem;
        }

        .news-item {
            background: var(--bg-glass);
            backdrop-filter: blur(10px);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            padding: 1.5rem;
            transition: all var(--transition-fast);
            display: flex;
            gap: 1rem;
            align-items: center;
        }

        .news-item:hover {
            border-color: var(--accent-cyan);
            box-shadow: 0 0 16px rgba(6, 182, 212, 0.2);
        }

        .news-thumb {
            width: 80px;
            height: 80px;
            border-radius: var(--radius-md);
            background: var(--bg-secondary);
            flex-shrink: 0;
            overflow: hidden;
        }

        .news-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .news-info h4 {
            font-weight: 700;
            margin-bottom: 0.3rem;
            font-size: 1rem;
        }

        .news-info p {
            color: var(--text-muted);
            font-size: 0.85rem;
            line-height: 1.5;
        }

        .news-sidebar {
            background: var(--bg-glass);
            backdrop-filter: blur(12px);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 1.8rem;
        }

        .news-sidebar h3 {
            font-weight: 700;
            margin-bottom: 1rem;
            color: var(--accent-cyan);
        }

        /* Comparison Table */
        .comparison-table-wrapper {
            overflow-x: auto;
            border-radius: var(--radius-lg);
            background: var(--bg-glass);
            backdrop-filter: blur(12px);
            border: 1px solid var(--border-subtle);
            padding: 0.5rem;
        }

        table.comparison {
            width: 100%;
            border-collapse: collapse;
            color: var(--text-primary);
        }

        table.comparison th,
        table.comparison td {
            padding: 1rem 1.2rem;
            text-align: left;
            border-bottom: 1px solid var(--border-subtle);
        }

        table.comparison th {
            font-weight: 700;
            background: rgba(6, 182, 212, 0.1);
            color: var(--accent-cyan);
        }

        /* Guarantee Bar */
        .guarantee-strip {
            background: linear-gradient(135deg, rgba(6, 182, 212, 0.08), rgba(163, 230, 53, 0.05));
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-xl);
            padding: 2.4rem 2rem;
            backdrop-filter: blur(10px);
            display: flex;
            flex-wrap: wrap;
            gap: 2rem;
            align-items: center;
            justify-content: center;
            text-align: center;
        }

        .guarantee-item i {
            font-size: 2.2rem;
            color: var(--accent-lime);
            margin-bottom: 0.6rem;
        }

        /* CTA Form */
        .cta-form-section {
            background: rgba(14, 14, 30, 0.7);
            border-radius: var(--radius-2xl);
            padding: 3.5rem 2rem;
            backdrop-filter: blur(14px);
            border: 1px solid rgba(163, 230, 53, 0.3);
            text-align: center;
        }

        .cta-form-section h2 {
            margin-bottom: 0.8rem;
        }

        .subscribe-form {
            display: flex;
            gap: 0.8rem;
            max-width: 500px;
            margin: 2rem auto 0;
            flex-wrap: wrap;
            justify-content: center;
        }

        .subscribe-form input {
            flex: 1 1 240px;
            padding: 0.8rem 1.3rem;
            border-radius: 40px;
            border: 1px solid var(--border-subtle);
            background: rgba(7, 7, 13, 0.8);
            color: var(--text-primary);
            font-size: 0.95rem;
            outline: none;
            transition: border var(--transition-fast);
        }

        .subscribe-form input:focus {
            border-color: var(--accent-cyan);
            box-shadow: 0 0 12px rgba(6, 182, 212, 0.25);
        }

        /* Footer */
        .site-footer {
            background: rgba(7, 7, 13, 0.95);
            backdrop-filter: blur(20px);
            border-top: 1px solid var(--border-subtle);
            padding: 3rem 0 1.5rem;
            margin-top: var(--spacing-xl);
            color: var(--text-muted);
            font-size: 0.9rem;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }

        .footer-col h4 {
            color: var(--text-primary);
            font-weight: 700;
            margin-bottom: 1rem;
        }

        .footer-col a {
            display: block;
            color: var(--text-muted);
            margin-bottom: 0.5rem;
        }

        .footer-bottom {
            border-top: 1px solid var(--border-subtle);
            padding-top: 1.5rem;
            text-align: center;
        }

        /* FAB */
        .fab-floating {
            position: fixed;
            left: 1rem;
            bottom: 6rem;
            z-index: 55;
            width: 56px;
            height: 56px;
            border-radius: 30px;
            background: rgba(7, 7, 13, 0.85);
            backdrop-filter: blur(16px);
            border: 2px solid transparent;
            background-clip: padding-box;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
            color: var(--accent-cyan);
            box-shadow: var(--shadow-cyan);
            transition: all var(--transition-smooth);
            cursor: pointer;
            overflow: hidden;
        }

        .fab-floating::before {
            content: '';
            position: absolute;
            inset: -2px;
            border-radius: 30px;
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-lime));
            z-index: -1;
            opacity: 0.7;
        }

        .fab-floating:hover {
            transform: scale(1.08);
            box-shadow: 0 0 28px rgba(6, 182, 212, 0.6);
        }

        @media (max-width: 520px) {
            .fab-floating {
                width: 48px;
                height: 48px;
                font-size: 1.3rem;
                left: 0.8rem;
                bottom: 5rem;
            }
        }

        /* Utility */
        .text-gradient {
            background: linear-gradient(135deg, #A3E635, #38BDF8);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        hr {
            border-color: var(--border-subtle);
            margin: var(--spacing-lg) 0;
        }

/* roulang page: article */
:root {
            --bg-primary: #07070D;
            --bg-secondary: #0E0E1E;
            --bg-card: rgba(14, 14, 30, 0.85);
            --bg-glass: rgba(14, 14, 30, 0.65);
            --accent-lime: #A3E635;
            --accent-cyan: #06B6D4;
            --accent-pink: #F43F5E;
            --text-primary: #FFFFFF;
            --text-secondary: #94A3B8;
            --text-muted: #64748B;
            --border-glow: rgba(6, 182, 212, 0.35);
            --border-subtle: rgba(148, 163, 184, 0.18);
            --radius-md: 12px;
            --radius-lg: 18px;
            --radius-xl: 24px;
            --radius-2xl: 32px;
            --shadow-neon: 0 0 15px rgba(163, 230, 53, 0.4);
            --shadow-cyan: 0 0 20px rgba(6, 182, 212, 0.45);
            --shadow-elevation: 0 18px 40px rgba(0, 0, 0, 0.7);
            --spacing-xs: 0.5rem;
            --spacing-sm: 1rem;
            --spacing-md: 1.8rem;
            --spacing-lg: 3.2rem;
            --spacing-xl: 5rem;
            --spacing-2xl: 7rem;
            --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-smooth: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            --font-heading: 'Segoe UI', 'Inter', system-ui, -apple-system, sans-serif;
            --font-body: 'Segoe UI', 'Inter', system-ui, -apple-system, sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
            background-color: var(--bg-primary);
        }

        body {
            font-family: var(--font-body);
            background: linear-gradient(175deg, #07070D 0%, #0E0E1E 55%, #07070D 100%);
            background-attachment: fixed;
            color: var(--text-primary);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            min-height: 100vh;
            overflow-x: hidden;
            margin: 0;
            padding: 0;
        }

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

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

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

        button,
        .btn {
            cursor: pointer;
            font-family: var(--font-body);
            border: none;
            outline: none;
            font-weight: 600;
            letter-spacing: 0.015em;
            transition: all var(--transition-smooth);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            white-space: nowrap;
        }

        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 var(--spacing-sm);
        }

        @media (min-width: 768px) {
            .container {
                padding: 0 var(--spacing-md);
            }
        }

        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 60;
            background: rgba(7, 7, 13, 0.78);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border-subtle);
            transition: background var(--transition-smooth);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0.75rem 0;
            gap: 1.2rem;
            flex-wrap: wrap;
        }

        .logo {
            font-family: var(--font-heading);
            font-weight: 800;
            font-size: 1.25rem;
            letter-spacing: -0.4px;
            color: var(--text-primary);
            display: flex;
            align-items: center;
            gap: 0.45rem;
            line-height: 1.2;
            background: linear-gradient(135deg, #A3E635, #38BDF8);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .logo i {
            font-size: 1.6rem;
            background: linear-gradient(135deg, var(--accent-lime), var(--accent-cyan));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 1.8rem;
            list-style: none;
            font-weight: 500;
            font-size: 0.92rem;
            margin: 0;
            padding: 0;
        }

        .nav-links li {
            margin: 0;
        }

        .nav-links a {
            padding: 0.4rem 0;
            position: relative;
            color: var(--text-secondary);
            transition: color var(--transition-fast);
        }

        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: linear-gradient(90deg, var(--accent-cyan), var(--accent-lime));
            transition: width var(--transition-smooth);
            border-radius: 4px;
        }

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

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

        .header-actions {
            display: flex;
            align-items: center;
            gap: 0.7rem;
        }

        .btn-login {
            background: transparent;
            color: var(--text-primary);
            border: 1px solid rgba(6, 182, 212, 0.5);
            padding: 0.5rem 1.2rem;
            border-radius: 30px;
            font-size: 0.9rem;
            font-weight: 600;
            transition: all var(--transition-fast);
        }

        .btn-login:hover {
            border-color: var(--accent-cyan);
            box-shadow: 0 0 12px rgba(6, 182, 212, 0.25);
            color: var(--accent-cyan);
        }

        .btn-signup {
            background: linear-gradient(135deg, #A3E635, #06B6D4);
            color: #07070D;
            padding: 0.55rem 1.4rem;
            border-radius: 30px;
            font-size: 0.9rem;
            font-weight: 700;
            box-shadow: 0 0 15px rgba(163, 230, 53, 0.4);
            transition: all var(--transition-smooth);
        }

        .btn-signup:hover {
            box-shadow: 0 0 25px rgba(163, 230, 53, 0.65);
            transform: translateY(-2px);
            color: #07070D;
        }

        .mobile-toggle {
            display: none;
            background: transparent;
            color: var(--text-primary);
            font-size: 1.6rem;
            padding: 0.4rem;
            border-radius: 8px;
            transition: all var(--transition-fast);
        }

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

        @media (max-width: 1024px) {
            .nav-links {
                gap: 1rem;
                font-size: 0.82rem;
            }
            .btn-login,
            .btn-signup {
                padding: 0.45rem 0.9rem;
                font-size: 0.8rem;
            }
        }

        @media (max-width: 768px) {
            .mobile-toggle {
                display: inline-flex;
            }
            .nav-links {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                width: 100%;
                flex-direction: column;
                background: rgba(14, 14, 30, 0.96);
                backdrop-filter: blur(20px);
                -webkit-backdrop-filter: blur(20px);
                border-bottom: 1px solid var(--border-subtle);
                padding: 1.2rem 1.5rem;
                gap: 0.8rem;
                z-index: 55;
            }
            .nav-links.active-mobile {
                display: flex;
            }
            .nav-links a {
                padding: 0.5rem 0;
                font-size: 1rem;
                border-bottom: 1px solid var(--border-subtle);
            }
            .nav-links a:last-child {
                border-bottom: none;
            }
            .header-actions {
                gap: 0.5rem;
            }
            .btn-login,
            .btn-signup {
                padding: 0.45rem 0.85rem;
                font-size: 0.8rem;
            }
        }

        .article-hero {
            padding-top: 6.5rem;
            padding-bottom: var(--spacing-lg);
            background: url('/assets/images/backpic/back-5.jpg') center/cover no-repeat;
            position: relative;
            border-bottom: 1px solid var(--border-glow);
        }

        .article-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(7, 7, 13, 0.82) 0%, rgba(14, 14, 30, 0.9) 100%);
            z-index: 1;
        }

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

        .article-meta {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 1rem;
            margin-bottom: 0.8rem;
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        .article-meta .badge-cat {
            background: rgba(6, 182, 212, 0.18);
            border: 1px solid var(--border-glow);
            color: var(--accent-cyan);
            padding: 0.35rem 1rem;
            border-radius: 30px;
            font-weight: 600;
            font-size: 0.8rem;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }

        .article-hero h1 {
            font-family: var(--font-heading);
            font-size: 2.8rem;
            font-weight: 900;
            line-height: 1.25;
            letter-spacing: -0.6px;
            margin-bottom: 1rem;
            background: linear-gradient(135deg, #FFFFFF 0%, #A3E635 60%, #06B6D4 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        @media (max-width: 768px) {
            .article-hero h1 {
                font-size: 2rem;
            }
        }

        .roadmap-bar {
            background: rgba(14, 14, 30, 0.65);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-xl);
            padding: 1.5rem 2rem;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 1.5rem;
            margin-top: var(--spacing-md);
        }

        .roadmap-node {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--text-secondary);
            position: relative;
        }

        .roadmap-node.completed {
            color: var(--accent-lime);
        }

        .roadmap-node i {
            font-size: 1.1rem;
        }

        .roadmap-connector {
            flex: 1;
            min-width: 30px;
            height: 2px;
            background: linear-gradient(90deg, var(--accent-lime), var(--accent-cyan));
            border-radius: 1px;
            opacity: 0.5;
        }

        .subscribe-box {
            display: flex;
            gap: 0.5rem;
            align-items: center;
            flex-wrap: wrap;
            margin-left: auto;
        }

        .subscribe-box input {
            background: rgba(7, 7, 13, 0.6);
            border: 1px solid var(--border-subtle);
            color: var(--text-primary);
            padding: 0.65rem 1.2rem;
            border-radius: 30px;
            font-size: 0.9rem;
            min-width: 220px;
            outline: none;
            transition: border-color var(--transition-fast);
        }

        .subscribe-box input:focus {
            border-color: var(--accent-cyan);
            box-shadow: 0 0 10px rgba(6, 182, 212, 0.2);
        }

        .subscribe-box .btn-sub {
            background: linear-gradient(135deg, #A3E635, #06B6D4);
            color: #07070D;
            padding: 0.65rem 1.5rem;
            border-radius: 30px;
            font-weight: 700;
            font-size: 0.9rem;
            box-shadow: var(--shadow-neon);
            transition: all var(--transition-smooth);
        }

        .subscribe-box .btn-sub:hover {
            box-shadow: 0 0 25px rgba(163, 230, 53, 0.7);
            transform: translateY(-2px);
            color: #07070D;
        }

        @media (max-width: 768px) {
            .roadmap-bar {
                flex-direction: column;
                align-items: flex-start;
                padding: 1.2rem;
            }
            .roadmap-connector {
                display: none;
            }
            .subscribe-box {
                margin-left: 0;
                width: 100%;
            }
            .subscribe-box input {
                flex: 1;
                min-width: auto;
            }
        }

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

        .article-body {
            background: var(--bg-card);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-xl);
            padding: 2.5rem;
            line-height: 1.75;
            font-size: 1.05rem;
            color: var(--text-secondary);
        }

        .article-body h2 {
            font-family: var(--font-heading);
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-top: 2rem;
            margin-bottom: 0.8rem;
        }

        .article-body h3 {
            font-family: var(--font-heading);
            font-size: 1.4rem;
            font-weight: 600;
            color: var(--accent-cyan);
            margin-top: 1.5rem;
            margin-bottom: 0.6rem;
        }

        .article-body p {
            margin-bottom: 1.2rem;
        }

        .article-body ul,
        .article-body ol {
            margin-bottom: 1.2rem;
            padding-left: 1.5rem;
        }

        .article-body li {
            margin-bottom: 0.5rem;
        }

        .article-body img {
            border-radius: var(--radius-lg);
            margin: 1.5rem 0;
        }

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

        .article-body a {
            color: var(--accent-cyan);
            text-decoration: underline;
            text-underline-offset: 3px;
        }

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

        @media (max-width: 768px) {
            .article-body {
                padding: 1.2rem;
                font-size: 0.95rem;
            }
        }

        .not-found-block {
            text-align: center;
            padding: 4rem 1.5rem;
            background: var(--bg-card);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-xl);
        }

        .not-found-block h2 {
            font-size: 2rem;
            margin-bottom: 0.8rem;
            color: var(--text-primary);
        }

        .not-found-block p {
            color: var(--text-secondary);
            margin-bottom: 1.5rem;
        }

        .not-found-block .btn-back {
            background: linear-gradient(135deg, #A3E635, #06B6D4);
            color: #07070D;
            padding: 0.7rem 2rem;
            border-radius: 30px;
            font-weight: 700;
            box-shadow: var(--shadow-neon);
            transition: all var(--transition-smooth);
            display: inline-flex;
        }

        .not-found-block .btn-back:hover {
            box-shadow: 0 0 25px rgba(163, 230, 53, 0.7);
            transform: translateY(-2px);
            color: #07070D;
        }

        .related-section {
            padding: var(--spacing-lg) 0;
            border-top: 1px solid var(--border-subtle);
        }

        .section-label {
            font-size: 0.8rem;
            text-transform: uppercase;
            letter-spacing: 1.2px;
            color: var(--accent-cyan);
            font-weight: 700;
            margin-bottom: 0.3rem;
        }

        .section-title {
            font-family: var(--font-heading);
            font-size: 2.2rem;
            font-weight: 800;
            margin-bottom: var(--spacing-md);
            letter-spacing: -0.5px;
        }

        .game-card-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.5rem;
        }

        @media (max-width: 1024px) {
            .game-card-grid {
                grid-template-columns: repeat(3, 1fr);
            }
        }

        @media (max-width: 768px) {
            .game-card-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 1rem;
            }
        }

        @media (max-width: 520px) {
            .game-card-grid {
                grid-template-columns: 1fr 1fr;
                gap: 0.8rem;
            }
        }

        .game-card {
            background: var(--bg-glass);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: all var(--transition-smooth);
            cursor: pointer;
            display: flex;
            flex-direction: column;
        }

        .game-card:hover {
            transform: scale(1.05) translateY(-6px);
            box-shadow: 0 0 25px rgba(6, 182, 212, 0.4);
            border-color: var(--border-glow);
            z-index: 5;
        }

        .game-card .card-img {
            width: 100%;
            aspect-ratio: 1 / 1;
            object-fit: cover;
            display: block;
        }

        .game-card .card-info {
            padding: 0.8rem 1rem;
            display: flex;
            flex-direction: column;
            gap: 0.25rem;
        }

        .game-card .card-name {
            font-weight: 700;
            font-size: 0.95rem;
            color: var(--text-primary);
            line-height: 1.3;
        }

        .game-card .card-tag {
            font-size: 0.75rem;
            color: var(--accent-lime);
            font-weight: 600;
            letter-spacing: 0.3px;
            display: flex;
            align-items: center;
            gap: 0.3rem;
        }

        .game-card .card-tag i {
            font-size: 0.7rem;
        }

        .trust-strip {
            padding: var(--spacing-md) 0;
            background: rgba(14, 14, 30, 0.35);
            border-top: 1px solid var(--border-subtle);
            border-bottom: 1px solid var(--border-subtle);
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: center;
            gap: 2.5rem;
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        .trust-strip i {
            margin-right: 0.4rem;
            color: var(--accent-cyan);
        }

        .site-footer {
            background: rgba(7, 7, 13, 0.85);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-top: 1px solid var(--border-glow);
            padding: var(--spacing-xl) 0 var(--spacing-md);
            margin-top: var(--spacing-lg);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 2rem;
            margin-bottom: var(--spacing-md);
        }

        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

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

        .footer-col h4 {
            font-weight: 700;
            font-size: 1rem;
            margin-bottom: 0.8rem;
            color: var(--text-primary);
        }

        .footer-col a {
            display: block;
            color: var(--text-muted);
            font-size: 0.9rem;
            margin-bottom: 0.45rem;
            transition: color var(--transition-fast);
        }

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

        .footer-bottom {
            border-top: 1px solid var(--border-subtle);
            padding-top: var(--spacing-md);
            text-align: center;
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        .fab-left {
            position: fixed;
            left: 1.2rem;
            bottom: 6rem;
            z-index: 50;
            width: 56px;
            height: 56px;
            border-radius: 16px;
            background: rgba(7, 7, 13, 0.8);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border: 1.5px solid transparent;
            background-clip: padding-box;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-cyan);
            font-size: 1.5rem;
            box-shadow: 0 0 20px rgba(6, 182, 212, 0.45);
            transition: all var(--transition-smooth);
            cursor: pointer;
            animation: floatFab 3.5s ease-in-out infinite;
        }

        .fab-left::before {
            content: '';
            position: absolute;
            inset: -2px;
            border-radius: 18px;
            background: linear-gradient(135deg, #A3E635, #06B6D4);
            z-index: -1;
            opacity: 0.7;
        }

        .fab-left:hover {
            transform: scale(1.1);
            box-shadow: 0 0 35px rgba(6, 182, 212, 0.7);
            color: var(--accent-lime);
        }

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

        @media (max-width: 768px) {
            .fab-left {
                width: 50px;
                height: 50px;
                left: 0.8rem;
                bottom: 5.5rem;
                font-size: 1.3rem;
            }
        }

/* roulang page: category1 */
:root {
            --bg-primary: #07070D;
            --bg-secondary: #0E0E1E;
            --bg-card: rgba(14, 14, 30, 0.85);
            --bg-glass: rgba(14, 14, 30, 0.65);
            --accent-lime: #A3E635;
            --accent-cyan: #06B6D4;
            --accent-pink: #F43F5E;
            --text-primary: #FFFFFF;
            --text-secondary: #94A3B8;
            --text-muted: #64748B;
            --border-glow: rgba(6, 182, 212, 0.35);
            --border-subtle: rgba(148, 163, 184, 0.18);
            --radius-md: 12px;
            --radius-lg: 18px;
            --radius-xl: 24px;
            --radius-2xl: 32px;
            --shadow-neon: 0 0 15px rgba(163, 230, 53, 0.4);
            --shadow-cyan: 0 0 20px rgba(6, 182, 212, 0.45);
            --shadow-elevation: 0 18px 40px rgba(0, 0, 0, 0.7);
            --spacing-xs: 0.5rem;
            --spacing-sm: 1rem;
            --spacing-md: 1.8rem;
            --spacing-lg: 3.2rem;
            --spacing-xl: 5rem;
            --spacing-2xl: 7rem;
            --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-smooth: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            --font-heading: 'Segoe UI', 'Inter', system-ui, -apple-system, sans-serif;
            --font-body: 'Segoe UI', 'Inter', system-ui, -apple-system, sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
            background-color: var(--bg-primary);
        }

        body {
            font-family: var(--font-body);
            background: linear-gradient(175deg, #07070D 0%, #0E0E1E 55%, #07070D 100%);
            background-attachment: fixed;
            color: var(--text-primary);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            min-height: 100vh;
            overflow-x: hidden;
            margin: 0;
            padding: 0;
        }

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

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

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

        button,
        .btn {
            cursor: pointer;
            font-family: var(--font-body);
            border: none;
            outline: none;
            font-weight: 600;
            letter-spacing: 0.015em;
            transition: all var(--transition-smooth);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            white-space: nowrap;
        }

        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 var(--spacing-sm);
        }

        @media (min-width: 768px) {
            .container {
                padding: 0 var(--spacing-md);
            }
        }

        /* Header */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 60;
            background: rgba(7, 7, 13, 0.78);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border-subtle);
            transition: background var(--transition-smooth);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0.75rem 0;
            gap: 1.2rem;
            flex-wrap: wrap;
        }

        .logo {
            font-family: var(--font-heading);
            font-weight: 800;
            font-size: 1.25rem;
            letter-spacing: -0.4px;
            color: var(--text-primary);
            display: flex;
            align-items: center;
            gap: 0.45rem;
            line-height: 1.2;
            background: linear-gradient(135deg, #A3E635, #38BDF8);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .logo i {
            font-size: 1.6rem;
            background: linear-gradient(135deg, var(--accent-lime), var(--accent-cyan));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 1.8rem;
            list-style: none;
            font-weight: 500;
            font-size: 0.92rem;
            margin: 0;
            padding: 0;
        }

        .nav-links a {
            padding: 0.4rem 0;
            position: relative;
            color: var(--text-secondary);
            transition: color var(--transition-fast);
        }

        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: linear-gradient(90deg, var(--accent-cyan), var(--accent-lime));
            transition: width var(--transition-smooth);
            border-radius: 4px;
        }

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

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

        .header-actions {
            display: flex;
            align-items: center;
            gap: 0.7rem;
        }

        .btn-login {
            background: transparent;
            color: var(--text-primary);
            border: 1px solid var(--border-subtle);
            padding: 0.5rem 1.2rem;
            border-radius: 30px;
            font-size: 0.9rem;
            font-weight: 600;
            transition: all var(--transition-fast);
        }

        .btn-login:hover {
            border-color: var(--accent-cyan);
            color: var(--accent-cyan);
            background: rgba(6, 182, 212, 0.08);
        }

        .btn-signup {
            background: linear-gradient(135deg, var(--accent-lime), #38BDF8);
            color: #07070D;
            padding: 0.5rem 1.4rem;
            border-radius: 30px;
            font-size: 0.9rem;
            font-weight: 700;
            box-shadow: var(--shadow-neon);
            transition: all var(--transition-smooth);
        }

        .btn-signup:hover {
            box-shadow: 0 0 25px rgba(163, 230, 53, 0.65);
            transform: translateY(-1px);
            color: #07070D;
        }

        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--text-primary);
            font-size: 1.5rem;
            padding: 0.3rem;
            cursor: pointer;
        }

        @media (max-width: 992px) {
            .nav-links {
                display: none;
                flex-direction: column;
                align-items: stretch;
                width: 100%;
                background: var(--bg-card);
                backdrop-filter: blur(24px);
                -webkit-backdrop-filter: blur(24px);
                border-radius: var(--radius-lg);
                padding: var(--spacing-sm);
                margin-top: 0.5rem;
            }

            .nav-links.show {
                display: flex;
            }

            .mobile-toggle {
                display: block;
            }

            .header-actions {
                display: flex;
            }
        }

        @media (max-width: 520px) {
            .logo {
                font-size: 1.05rem;
            }

            .btn-login,
            .btn-signup {
                padding: 0.4rem 1rem;
                font-size: 0.82rem;
            }
        }

        /* Hero */
        .category-hero {
            padding: 8rem 0 4rem;
            background: radial-gradient(ellipse at 50% 0%, rgba(6, 182, 212, 0.12) 0%, transparent 60%);
            text-align: left;
        }

        .category-hero h1 {
            font-family: var(--font-heading);
            font-size: 2.8rem;
            font-weight: 800;
            letter-spacing: -0.6px;
            line-height: 1.25;
            margin-bottom: var(--spacing-md);
            background: linear-gradient(135deg, #FFFFFF, #A3E635);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .category-hero .lead {
            font-size: 1.15rem;
            color: var(--text-secondary);
            max-width: 700px;
            margin-bottom: var(--spacing-md);
        }

        .category-hero .hero-stats {
            display: flex;
            gap: 2rem;
            flex-wrap: wrap;
            margin-top: var(--spacing-md);
        }

        .hero-stat-item {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            background: var(--bg-glass);
            border: 1px solid var(--border-glow);
            padding: 0.8rem 1.3rem;
            border-radius: var(--radius-xl);
            backdrop-filter: blur(8px);
        }

        .hero-stat-item i {
            font-size: 1.6rem;
            color: var(--accent-lime);
        }

        .hero-stat-item span {
            font-weight: 700;
            font-size: 1.1rem;
            color: var(--text-primary);
        }

        @media (max-width: 768px) {
            .category-hero h1 {
                font-size: 2rem;
            }

            .category-hero {
                padding: 6rem 0 2.5rem;
            }
        }

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

        .section-title {
            font-family: var(--font-heading);
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: var(--spacing-md);
            color: var(--text-primary);
            text-align: left;
        }

        .section-subtitle {
            color: var(--text-secondary);
            font-size: 1.05rem;
            margin-bottom: var(--spacing-lg);
            text-align: left;
            max-width: 800px;
        }

        /* Game Cards Grid */
        .game-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.5rem;
        }

        .game-card {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: all var(--transition-smooth);
            position: relative;
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
        }

        .game-card:hover {
            transform: scale(1.05) translateY(-4px);
            border-color: var(--border-glow);
            box-shadow: 0 0 18px rgba(6, 182, 212, 0.3);
        }

        .game-card-image {
            width: 100%;
            height: 160px;
            object-fit: cover;
            display: block;
        }

        .game-card-body {
            padding: var(--spacing-sm);
        }

        .game-card-title {
            font-weight: 700;
            font-size: 0.95rem;
            margin-bottom: 0.25rem;
            color: var(--text-primary);
        }

        .game-card-badge {
            display: inline-block;
            background: linear-gradient(135deg, #F43F5E, #DC2626);
            color: #fff;
            font-size: 0.7rem;
            font-weight: 700;
            padding: 0.2rem 0.7rem;
            border-radius: 20px;
            letter-spacing: 0.03em;
        }

        .game-card-rtp {
            font-size: 0.8rem;
            color: var(--accent-lime);
            font-weight: 600;
            margin-top: 0.3rem;
        }

        @media (max-width: 1024px) {
            .game-grid {
                grid-template-columns: repeat(3, 1fr);
            }
        }

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

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

        /* Feature Row */
        .feature-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 2rem;
            align-items: center;
        }

        .feature-image {
            border-radius: var(--radius-xl);
            overflow: hidden;
            border: 1px solid var(--border-subtle);
            box-shadow: var(--shadow-elevation);
        }

        .feature-text h3 {
            font-family: var(--font-heading);
            font-size: 1.7rem;
            font-weight: 700;
            margin-bottom: var(--spacing-sm);
        }

        .feature-text p {
            color: var(--text-secondary);
            margin-bottom: var(--spacing-sm);
        }

        @media (max-width: 768px) {
            .feature-row {
                grid-template-columns: 1fr;
            }
        }

        /* Roadmap/Timeline */
        .roadmap-list {
            display: flex;
            flex-direction: column;
            gap: 1.8rem;
        }

        .roadmap-item {
            display: flex;
            gap: 1.2rem;
            align-items: flex-start;
        }

        .roadmap-dot {
            width: 14px;
            height: 14px;
            min-width: 14px;
            background: var(--accent-cyan);
            border-radius: 50%;
            box-shadow: 0 0 10px rgba(6, 182, 212, 0.7);
            margin-top: 0.35rem;
        }

        .roadmap-content h4 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 0.25rem;
        }

        .roadmap-content p {
            color: var(--text-secondary);
            margin: 0;
        }

        /* Comparison Table */
        .compare-table-wrap {
            overflow-x: auto;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-subtle);
        }

        .compare-table {
            width: 100%;
            border-collapse: collapse;
            min-width: 600px;
        }

        .compare-table th {
            background: var(--bg-card);
            color: var(--accent-cyan);
            font-weight: 700;
            padding: 1rem;
            text-align: left;
            border-bottom: 1px solid var(--border-glow);
        }

        .compare-table td {
            padding: 0.9rem 1rem;
            border-bottom: 1px solid var(--border-subtle);
            color: var(--text-secondary);
        }

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

        .compare-table .highlight {
            color: var(--accent-lime);
            font-weight: 700;
        }

        /* CTA Strip */
        .cta-strip {
            background: linear-gradient(135deg, rgba(6, 182, 212, 0.08), rgba(163, 230, 53, 0.05));
            border: 1px solid var(--border-glow);
            border-radius: var(--radius-2xl);
            padding: var(--spacing-lg);
            text-align: left;
            backdrop-filter: blur(12px);
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 1.5rem;
        }

        .cta-strip-text h3 {
            font-size: 1.6rem;
            font-weight: 700;
            margin-bottom: 0.4rem;
        }

        .cta-strip-text p {
            color: var(--text-secondary);
            margin: 0;
        }

        .btn-glow {
            background: linear-gradient(135deg, var(--accent-lime), #38BDF8);
            color: #07070D;
            padding: 0.85rem 2rem;
            border-radius: 40px;
            font-weight: 700;
            font-size: 1rem;
            box-shadow: var(--shadow-neon);
            transition: all var(--transition-smooth);
        }

        .btn-glow:hover {
            box-shadow: 0 0 30px rgba(163, 230, 53, 0.7);
            transform: translateY(-2px);
            color: #07070D;
        }

        /* FAQ */
        .faq-item {
            border-bottom: 1px solid var(--border-subtle);
            padding: var(--spacing-md) 0;
        }

        .faq-question {
            font-weight: 700;
            font-size: 1.1rem;
            margin-bottom: 0.5rem;
            color: var(--text-primary);
        }

        .faq-answer {
            color: var(--text-secondary);
        }

        /* Footer */
        .site-footer {
            background: rgba(7, 7, 13, 0.95);
            border-top: 1px solid var(--border-subtle);
            padding: var(--spacing-xl) 0 var(--spacing-md);
            margin-top: var(--spacing-xl);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 2rem;
            margin-bottom: var(--spacing-lg);
        }

        .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--accent-cyan);
            margin-bottom: 0.8rem;
        }

        .footer-col a {
            display: block;
            color: var(--text-secondary);
            font-size: 0.9rem;
            padding: 0.3rem 0;
            transition: color var(--transition-fast);
        }

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

        .footer-bottom {
            border-top: 1px solid var(--border-subtle);
            padding-top: var(--spacing-md);
            text-align: center;
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

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

/* roulang page: category2 */
:root {
            --bg-primary: #07070D;
            --bg-secondary: #0E0E1E;
            --bg-card: rgba(14, 14, 30, 0.85);
            --bg-glass: rgba(14, 14, 30, 0.65);
            --accent-lime: #A3E635;
            --accent-cyan: #06B6D4;
            --accent-pink: #F43F5E;
            --text-primary: #FFFFFF;
            --text-secondary: #94A3B8;
            --text-muted: #64748B;
            --border-glow: rgba(6, 182, 212, 0.35);
            --border-subtle: rgba(148, 163, 184, 0.18);
            --radius-md: 12px;
            --radius-lg: 18px;
            --radius-xl: 24px;
            --radius-2xl: 32px;
            --shadow-neon: 0 0 15px rgba(163, 230, 53, 0.4);
            --shadow-cyan: 0 0 20px rgba(6, 182, 212, 0.45);
            --shadow-elevation: 0 18px 40px rgba(0, 0, 0, 0.7);
            --spacing-xs: 0.5rem;
            --spacing-sm: 1rem;
            --spacing-md: 1.8rem;
            --spacing-lg: 3.2rem;
            --spacing-xl: 5rem;
            --spacing-2xl: 7rem;
            --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-smooth: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            --font-heading: 'Segoe UI', 'Inter', system-ui, -apple-system, sans-serif;
            --font-body: 'Segoe UI', 'Inter', system-ui, -apple-system, sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
            background-color: var(--bg-primary);
        }

        body {
            font-family: var(--font-body);
            background: linear-gradient(175deg, #07070D 0%, #0E0E1E 55%, #07070D 100%);
            background-attachment: fixed;
            color: var(--text-primary);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            min-height: 100vh;
            overflow-x: hidden;
        }

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

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

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

        button,
        .btn {
            cursor: pointer;
            font-family: var(--font-body);
            border: none;
            outline: none;
            font-weight: 600;
            letter-spacing: 0.015em;
            transition: all var(--transition-smooth);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            white-space: nowrap;
        }

        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 var(--spacing-md);
        }

        @media (max-width: 768px) {
            .container {
                padding: 0 var(--spacing-sm);
            }
        }

        /* Header & Navigation */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 60;
            background: rgba(7, 7, 13, 0.78);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border-subtle);
            transition: background var(--transition-smooth);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0.75rem 0;
            gap: 1.2rem;
            flex-wrap: wrap;
        }

        .logo {
            font-family: var(--font-heading);
            font-weight: 800;
            font-size: 1.25rem;
            letter-spacing: -0.4px;
            color: var(--text-primary);
            display: flex;
            align-items: center;
            gap: 0.45rem;
            line-height: 1.2;
            background: linear-gradient(135deg, #A3E635, #38BDF8);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .logo i {
            font-size: 1.6rem;
            background: linear-gradient(135deg, var(--accent-lime), var(--accent-cyan));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 1.8rem;
            list-style: none;
            font-weight: 500;
            font-size: 0.92rem;
        }

        .nav-links a {
            padding: 0.4rem 0;
            position: relative;
            color: var(--text-secondary);
            transition: color var(--transition-fast);
        }

        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: linear-gradient(90deg, var(--accent-cyan), var(--accent-lime));
            transition: width var(--transition-smooth);
            border-radius: 4px;
        }

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

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

        .header-actions {
            display: flex;
            align-items: center;
            gap: 0.7rem;
        }

        .btn-login {
            background: transparent;
            color: var(--text-primary);
            border: 1px solid var(--border-subtle);
            padding: 0.5rem 1.2rem;
            border-radius: 30px;
            font-size: 0.9rem;
            font-weight: 600;
            transition: all var(--transition-fast);
        }

        .btn-login:hover {
            border-color: var(--accent-cyan);
            color: var(--accent-cyan);
            box-shadow: 0 0 12px rgba(6, 182, 212, 0.25);
        }

        .btn-signup {
            background: linear-gradient(135deg, var(--accent-lime), var(--accent-cyan));
            color: #07070D;
            padding: 0.55rem 1.4rem;
            border-radius: 30px;
            font-size: 0.9rem;
            font-weight: 700;
            box-shadow: var(--shadow-neon);
            transition: all var(--transition-smooth);
        }

        .btn-signup:hover {
            box-shadow: 0 0 24px rgba(163, 230, 53, 0.65);
            transform: translateY(-1px);
            color: #07070D;
        }

        .mobile-menu-toggle {
            display: none;
            background: transparent;
            color: var(--text-primary);
            font-size: 1.6rem;
            padding: 0.25rem;
        }

        @media (max-width: 1024px) {
            .nav-links {
                gap: 1rem;
                font-size: 0.85rem;
            }
            .header-actions .btn-login,
            .header-actions .btn-signup {
                padding: 0.4rem 0.9rem;
                font-size: 0.82rem;
            }
        }

        @media (max-width: 768px) {
            .mobile-menu-toggle {
                display: block;
            }
            .nav-links {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                width: 100%;
                background: rgba(14, 14, 30, 0.96);
                backdrop-filter: blur(20px);
                flex-direction: column;
                padding: 1rem var(--spacing-sm);
                gap: 0.8rem;
                border-bottom: 1px solid var(--border-subtle);
            }
            .nav-links.open {
                display: flex;
            }
            .header-actions {
                gap: 0.4rem;
            }
            .btn-login {
                padding: 0.4rem 0.9rem;
                font-size: 0.82rem;
            }
            .btn-signup {
                padding: 0.45rem 0.9rem;
                font-size: 0.82rem;
            }
        }

        /* Hero */
        .page-hero {
            padding: 8rem 0 var(--spacing-xl);
            position: relative;
            overflow: hidden;
        }

        .page-hero::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: radial-gradient(ellipse at 40% 30%, rgba(6, 182, 212, 0.12) 0%, transparent 60%);
            pointer-events: none;
        }

        .hero-content {
            position: relative;
            z-index: 2;
            text-align: left;
            max-width: 680px;
        }

        .hero-content h1 {
            font-family: var(--font-heading);
            font-size: 2.8rem;
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 1.2rem;
            background: linear-gradient(135deg, #FFFFFF 0%, #A3E635 70%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero-content .hero-sub {
            font-size: 1.15rem;
            color: var(--text-secondary);
            margin-bottom: 2rem;
            line-height: 1.65;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
        }

        .btn-primary-glow {
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-lime));
            color: #07070D;
            padding: 0.85rem 2rem;
            border-radius: 40px;
            font-weight: 700;
            font-size: 1rem;
            box-shadow: 0 0 22px rgba(6, 182, 212, 0.5);
            transition: all var(--transition-smooth);
        }

        .btn-primary-glow:hover {
            box-shadow: 0 0 35px rgba(6, 182, 212, 0.75);
            transform: translateY(-2px);
            color: #07070D;
        }

        .btn-outline-glow {
            background: transparent;
            border: 1.5px solid var(--accent-cyan);
            color: var(--accent-cyan);
            padding: 0.85rem 2rem;
            border-radius: 40px;
            font-weight: 700;
            font-size: 1rem;
            transition: all var(--transition-smooth);
        }

        .btn-outline-glow:hover {
            background: rgba(6, 182, 212, 0.1);
            box-shadow: 0 0 18px rgba(6, 182, 212, 0.35);
        }

        @media (max-width: 768px) {
            .page-hero {
                padding: 6rem 0 var(--spacing-lg);
            }
            .hero-content h1 {
                font-size: 2rem;
            }
            .hero-content .hero-sub {
                font-size: 1rem;
            }
        }

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

        .section-dark {
            background: rgba(14, 14, 30, 0.45);
            border-top: 1px solid var(--border-subtle);
            border-bottom: 1px solid var(--border-subtle);
        }

        .section-title {
            font-family: var(--font-heading);
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 0.6rem;
            line-height: 1.25;
            color: var(--text-primary);
        }

        .section-sub {
            color: var(--text-secondary);
            margin-bottom: var(--spacing-lg);
            font-size: 1.05rem;
            max-width: 600px;
        }

        /* Guide Cards */
        .guide-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 2rem;
        }

        .guide-card {
            background: var(--bg-glass);
            backdrop-filter: blur(12px);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-xl);
            padding: var(--spacing-lg);
            display: flex;
            gap: 1.5rem;
            align-items: flex-start;
            transition: all var(--transition-smooth);
            position: relative;
            overflow: hidden;
        }

        .guide-card::before {
            content: '';
            position: absolute;
            top: -20px;
            right: -20px;
            width: 90px;
            height: 90px;
            background: radial-gradient(circle, rgba(163, 230, 53, 0.12) 0%, transparent 70%);
            pointer-events: none;
        }

        .guide-card:hover {
            border-color: var(--border-glow);
            box-shadow: 0 8px 30px rgba(6, 182, 212, 0.15);
            transform: translateY(-3px);
        }

        .guide-icon {
            width: 56px;
            height: 56px;
            border-radius: var(--radius-md);
            background: linear-gradient(135deg, rgba(163, 230, 53, 0.2), rgba(6, 182, 212, 0.2));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.8rem;
            flex-shrink: 0;
            color: var(--accent-cyan);
        }

        .guide-body h4 {
            font-weight: 700;
            font-size: 1.2rem;
            margin-bottom: 0.5rem;
            color: var(--text-primary);
        }

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

        @media (max-width: 768px) {
            .guide-grid {
                grid-template-columns: 1fr;
            }
            .guide-card {
                flex-direction: column;
                gap: 1rem;
            }
            .section-title {
                font-size: 1.7rem;
            }
        }

        /* Tips List */
        .tips-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 1.2rem;
        }

        .tips-list li {
            background: var(--bg-glass);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 1.2rem 1.8rem;
            display: flex;
            align-items: center;
            gap: 1rem;
            transition: all var(--transition-fast);
            color: var(--text-secondary);
        }

        .tips-list li:hover {
            border-color: var(--border-glow);
            box-shadow: 0 4px 18px rgba(6, 182, 212, 0.15);
        }

        .tips-list .tip-num {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-lime));
            color: #07070D;
            font-weight: 800;
            font-size: 1rem;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }

        /* CTA Section */
        .cta-panel {
            background: linear-gradient(135deg, rgba(6, 182, 212, 0.1), rgba(163, 230, 53, 0.08));
            border: 1px solid var(--border-glow);
            border-radius: var(--radius-2xl);
            padding: var(--spacing-xl) var(--spacing-lg);
            text-align: left;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 2rem;
        }

        .cta-panel h3 {
            font-size: 1.7rem;
            font-weight: 700;
            margin-bottom: 0.5rem;
        }

        .cta-panel p {
            color: var(--text-secondary);
            max-width: 500px;
        }

        /* Article List */
        .article-cards {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.8rem;
        }

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

        .article-card:hover {
            border-color: var(--border-glow);
            box-shadow: 0 12px 32px rgba(0, 0, 0, 0.5);
            transform: translateY(-4px);
        }

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

        .article-card-body {
            padding: 1.2rem;
        }

        .article-card-body .article-tag {
            display: inline-block;
            background: rgba(163, 230, 53, 0.15);
            color: var(--accent-lime);
            padding: 0.2rem 0.7rem;
            border-radius: 20px;
            font-size: 0.78rem;
            font-weight: 600;
            margin-bottom: 0.6rem;
        }

        .article-card-body h5 {
            font-weight: 700;
            font-size: 1rem;
            margin-bottom: 0.4rem;
            line-height: 1.35;
            color: var(--text-primary);
        }

        .article-card-body .article-excerpt {
            color: var(--text-muted);
            font-size: 0.85rem;
            line-height: 1.5;
        }

        @media (max-width: 1024px) {
            .article-cards {
                grid-template-columns: repeat(2, 1fr);
            }
        }

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

        /* FAQ */
        .faq-item {
            border-bottom: 1px solid var(--border-subtle);
            padding: 1.2rem 0;
            cursor: pointer;
            transition: all var(--transition-fast);
        }

        .faq-item:first-child {
            border-top: 1px solid var(--border-subtle);
        }

        .faq-question {
            font-weight: 700;
            font-size: 1.08rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 1rem;
            color: var(--text-primary);
            transition: color var(--transition-fast);
        }

        .faq-question i {
            color: var(--accent-cyan);
            font-size: 1rem;
            transition: transform var(--transition-fast);
        }

        .faq-answer {
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.65;
            margin-top: 0.7rem;
            display: none;
        }

        .faq-item.open .faq-answer {
            display: block;
        }

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

        /* Footer */
        .site-footer {
            background: rgba(14, 14, 30, 0.7);
            border-top: 1px solid var(--border-subtle);
            padding: var(--spacing-xl) 0 var(--spacing-md);
            margin-top: var(--spacing-lg);
            color: var(--text-secondary);
            font-size: 0.9rem;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 2rem;
            margin-bottom: var(--spacing-lg);
        }

        .footer-col h4 {
            color: var(--text-primary);
            font-weight: 700;
            font-size: 1rem;
            margin-bottom: 0.8rem;
        }

        .footer-col a {
            display: block;
            margin-bottom: 0.5rem;
            transition: color var(--transition-fast);
        }

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

        .footer-bottom {
            text-align: center;
            border-top: 1px solid var(--border-subtle);
            padding-top: var(--spacing-md);
            color: var(--text-muted);
            font-size: 0.82rem;
            line-height: 1.6;
        }

        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr;
            }
        }

        /* FAB */
        .fab-left {
            position: fixed;
            left: 1.2rem;
            bottom: 6rem;
            z-index: 50;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: rgba(14, 14, 30, 0.85);
            backdrop-filter: blur(16px);
            border: 1.5px solid transparent;
            background-clip: padding-box;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
            color: var(--accent-cyan);
            box-shadow: 0 0 20px rgba(6, 182, 212, 0.45);
            transition: all var(--transition-smooth);
            cursor: pointer;
        }

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

        .fab-left:hover {
            transform: scale(1.1);
            box-shadow: 0 0 30px rgba(6, 182, 212, 0.7);
        }

/* roulang page: category3 */
:root {
            --bg-primary: #07070D;
            --bg-secondary: #0E0E1E;
            --bg-card: rgba(14, 14, 30, 0.85);
            --bg-glass: rgba(14, 14, 30, 0.65);
            --accent-lime: #A3E635;
            --accent-cyan: #06B6D4;
            --accent-pink: #F43F5E;
            --text-primary: #FFFFFF;
            --text-secondary: #94A3B8;
            --text-muted: #64748B;
            --border-glow: rgba(6, 182, 212, 0.35);
            --border-subtle: rgba(148, 163, 184, 0.18);
            --radius-md: 12px;
            --radius-lg: 18px;
            --radius-xl: 24px;
            --radius-2xl: 32px;
            --shadow-neon: 0 0 15px rgba(163, 230, 53, 0.4);
            --shadow-cyan: 0 0 20px rgba(6, 182, 212, 0.45);
            --shadow-elevation: 0 18px 40px rgba(0, 0, 0, 0.7);
            --spacing-xs: 0.5rem;
            --spacing-sm: 1rem;
            --spacing-md: 1.8rem;
            --spacing-lg: 3.2rem;
            --spacing-xl: 5rem;
            --spacing-2xl: 7rem;
            --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-smooth: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            --font-heading: 'Segoe UI', 'Inter', system-ui, -apple-system, sans-serif;
            --font-body: 'Segoe UI', 'Inter', system-ui, -apple-system, sans-serif;
        }

        * {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
            background-color: var(--bg-primary);
        }

        body {
            font-family: var(--font-body);
            background: linear-gradient(175deg, #07070D 0%, #0E0E1E 55%, #07070D 100%);
            background-attachment: fixed;
            color: var(--text-primary);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            min-height: 100vh;
            overflow-x: hidden;
            margin: 0;
            padding: 0;
        }

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

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

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

        button,
        .btn {
            cursor: pointer;
            font-family: var(--font-body);
            border: none;
            outline: none;
            font-weight: 600;
            letter-spacing: 0.015em;
            transition: all var(--transition-smooth);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            white-space: nowrap;
        }

        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 var(--spacing-sm);
        }

        @media (min-width: 769px) {
            .container {
                padding: 0 var(--spacing-md);
            }
        }

        /* Header & Navigation */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 60;
            background: rgba(7, 7, 13, 0.78);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border-subtle);
            transition: background var(--transition-smooth);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0.75rem 0;
            gap: 1.2rem;
            flex-wrap: wrap;
        }

        .logo {
            font-family: var(--font-heading);
            font-weight: 800;
            font-size: 1.25rem;
            letter-spacing: -0.4px;
            color: var(--text-primary);
            display: flex;
            align-items: center;
            gap: 0.45rem;
            line-height: 1.2;
            background: linear-gradient(135deg, #A3E635, #38BDF8);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .logo i {
            font-size: 1.6rem;
            background: linear-gradient(135deg, var(--accent-lime), var(--accent-cyan));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 1.8rem;
            list-style: none;
            font-weight: 500;
            font-size: 0.92rem;
            margin: 0;
            padding: 0;
        }

        .nav-links a {
            padding: 0.4rem 0;
            position: relative;
            color: var(--text-secondary);
            transition: color var(--transition-fast);
        }

        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: linear-gradient(90deg, var(--accent-cyan), var(--accent-lime));
            transition: width var(--transition-smooth);
            border-radius: 4px;
        }

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

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

        .header-actions {
            display: flex;
            align-items: center;
            gap: 0.7rem;
        }

        .btn-login {
            background: transparent;
            color: var(--text-primary);
            border: 1px solid var(--border-subtle);
            padding: 0.5rem 1.2rem;
            border-radius: 30px;
            font-size: 0.9rem;
            font-weight: 600;
            transition: all var(--transition-fast);
        }

        .btn-login:hover {
            border-color: var(--accent-cyan);
            color: var(--accent-cyan);
            box-shadow: 0 0 12px rgba(6, 182, 212, 0.25);
            background: rgba(6, 182, 212, 0.08);
        }

        .btn-signup {
            background: linear-gradient(135deg, var(--accent-lime), #84cc16);
            color: #07070D;
            padding: 0.5rem 1.5rem;
            border-radius: 30px;
            font-size: 0.9rem;
            font-weight: 700;
            box-shadow: var(--shadow-neon);
        }

        .btn-signup:hover {
            transform: translateY(-1px);
            box-shadow: 0 0 24px rgba(163, 230, 53, 0.55);
            color: #07070D;
        }

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

        @media (max-width: 968px) {
            .nav-links {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 100%;
                left: 0;
                width: 100%;
                background: rgba(7, 7, 13, 0.95);
                backdrop-filter: blur(20px);
                padding: 1.5rem;
                gap: 1rem;
                border-bottom: 1px solid var(--border-subtle);
            }

            .nav-links.active-mobile {
                display: flex;
            }

            .mobile-menu-toggle {
                display: block;
            }

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

        @media (max-width: 520px) {
            .logo {
                font-size: 1rem;
            }
            .btn-login,
            .btn-signup {
                font-size: 0.8rem;
                padding: 0.4rem 1rem;
            }
        }

        /* Hero Section */
        .hero {
            padding: 9rem 0 4rem;
            background: linear-gradient(135deg, rgba(163, 230, 53, 0.06) 0%, rgba(6, 182, 212, 0.08) 50%, rgba(244, 63, 94, 0.03) 100%);
            position: relative;
            overflow: hidden;
        }

        .hero::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 700px;
            height: 700px;
            background: radial-gradient(circle, rgba(163, 230, 53, 0.1) 0%, transparent 70%);
            pointer-events: none;
        }

        .hero-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 3rem;
            align-items: center;
            position: relative;
            z-index: 2;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: rgba(244, 63, 94, 0.15);
            border: 1px solid rgba(244, 63, 94, 0.4);
            color: var(--accent-pink);
            padding: 0.45rem 1.2rem;
            border-radius: 30px;
            font-size: 0.85rem;
            font-weight: 700;
            margin-bottom: 1.5rem;
            letter-spacing: 0.5px;
        }

        .hero-badge i {
            animation: pulse 1.5s ease-in-out infinite;
        }

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

        .hero h1 {
            font-family: var(--font-heading);
            font-size: 3.2rem;
            font-weight: 900;
            line-height: 1.15;
            margin-bottom: 1.2rem;
            background: linear-gradient(135deg, #FFFFFF 0%, #A3E635 40%, #38BDF8 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            letter-spacing: -1px;
        }

        .hero-subtitle {
            font-size: 1.15rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 2rem;
        }

        .hero-cta-group {
            display: flex;
            gap: 1rem;
            flex-wrap: wrap;
        }

        .btn-primary {
            background: linear-gradient(135deg, #F43F5E, #E11D48);
            color: #FFFFFF;
            padding: 0.85rem 2.2rem;
            border-radius: 30px;
            font-size: 1.05rem;
            font-weight: 700;
            box-shadow: 0 6px 24px rgba(244, 63, 94, 0.35);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 32px rgba(244, 63, 94, 0.5);
            color: #FFFFFF;
        }

        .btn-secondary {
            background: transparent;
            color: var(--accent-cyan);
            border: 2px solid var(--accent-cyan);
            padding: 0.8rem 2rem;
            border-radius: 30px;
            font-size: 1.05rem;
            font-weight: 700;
        }

        .btn-secondary:hover {
            background: rgba(6, 182, 212, 0.1);
            box-shadow: 0 0 20px rgba(6, 182, 212, 0.35);
            color: var(--accent-cyan);
        }

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

        .hero-image-wrapper img {
            border-radius: var(--radius-xl);
            box-shadow: var(--shadow-elevation);
            border: 1px solid var(--border-subtle);
        }

        .hero-floating-badge {
            position: absolute;
            bottom: -15px;
            right: -15px;
            background: rgba(14, 14, 30, 0.9);
            backdrop-filter: blur(12px);
            border: 1px solid var(--border-glow);
            border-radius: var(--radius-lg);
            padding: 1rem 1.5rem;
            box-shadow: var(--shadow-cyan);
            display: flex;
            align-items: center;
            gap: 0.8rem;
        }

        .hero-floating-badge span {
            font-weight: 800;
            font-size: 1.6rem;
            color: var(--accent-lime);
        }

        .hero-floating-badge small {
            color: var(--text-secondary);
            font-size: 0.8rem;
        }

        @media (max-width: 968px) {
            .hero-grid {
                grid-template-columns: 1fr;
                gap: 2rem;
            }
            .hero h1 {
                font-size: 2.4rem;
            }
            .hero-image-wrapper {
                order: -1;
            }
        }

        @media (max-width: 520px) {
            .hero {
                padding: 7rem 0 2.5rem;
            }
            .hero h1 {
                font-size: 1.9rem;
            }
            .hero-subtitle {
                font-size: 1rem;
            }
        }

        /* Section Titles */
        .section-title {
            font-family: var(--font-heading);
            font-size: 2.2rem;
            font-weight: 800;
            margin-bottom: 0.75rem;
            color: var(--text-primary);
            letter-spacing: -0.5px;
        }

        .section-subtitle {
            font-size: 1.05rem;
            color: var(--text-secondary);
            margin-bottom: 2.5rem;
            line-height: 1.6;
        }

        @media (max-width: 520px) {
            .section-title {
                font-size: 1.7rem;
            }
        }

        /* Offer Cards */
        .offer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 1.8rem;
        }

        .offer-card {
            background: var(--bg-glass);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-xl);
            padding: 2rem;
            transition: all var(--transition-smooth);
            position: relative;
            overflow: hidden;
        }

        .offer-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 3px;
            background: linear-gradient(90deg, var(--accent-lime), var(--accent-cyan));
            transform: scaleX(0);
            transform-origin: left;
            transition: transform var(--transition-smooth);
        }

        .offer-card:hover::before {
            transform: scaleX(1);
        }

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

        .offer-card.featured {
            border-color: var(--accent-pink);
            box-shadow: 0 0 20px rgba(244, 63, 94, 0.2);
        }

        .offer-tag {
            display: inline-block;
            background: linear-gradient(135deg, var(--accent-pink), #E11D48);
            color: #FFFFFF;
            padding: 0.35rem 1rem;
            border-radius: 20px;
            font-size: 0.78rem;
            font-weight: 700;
            margin-bottom: 1rem;
            letter-spacing: 0.4px;
        }

        .offer-card h3 {
            font-family: var(--font-heading);
            font-size: 1.5rem;
            font-weight: 800;
            margin-bottom: 0.6rem;
            color: var(--text-primary);
        }

        .offer-value {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--accent-lime);
            margin-bottom: 0.8rem;
        }

        .offer-card p {
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.6;
            margin-bottom: 1.5rem;
        }

        .btn-offer {
            background: linear-gradient(135deg, var(--accent-cyan), #0891B2);
            color: #FFFFFF;
            padding: 0.65rem 1.6rem;
            border-radius: 25px;
            font-size: 0.92rem;
            font-weight: 700;
            width: 100%;
        }

        .btn-offer:hover {
            box-shadow: 0 0 18px rgba(6, 182, 212, 0.45);
            transform: translateY(-2px);
            color: #FFFFFF;
        }

        /* Step / How-to Section */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            position: relative;
        }

        .step-item {
            text-align: left;
            padding: 1.8rem;
            background: var(--bg-glass);
            backdrop-filter: blur(10px);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            position: relative;
            transition: all var(--transition-smooth);
        }

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

        .step-number {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 44px;
            height: 44px;
            background: linear-gradient(135deg, var(--accent-lime), #84cc16);
            color: #07070D;
            font-weight: 900;
            font-size: 1.2rem;
            border-radius: 50%;
            margin-bottom: 1rem;
        }

        .step-item h4 {
            font-family: var(--font-heading);
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 0.5rem;
            color: var(--text-primary);
        }

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

        /* FAQ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 1rem;
            max-width: 860px;
        }

        .faq-item {
            background: var(--bg-glass);
            backdrop-filter: blur(12px);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: all var(--transition-smooth);
        }

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

        .faq-question {
            padding: 1.3rem 1.8rem;
            font-weight: 700;
            font-size: 1.05rem;
            color: var(--text-primary);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            transition: color var(--transition-fast);
        }

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

        .faq-answer {
            padding: 0 1.8rem 1.5rem;
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.7;
        }

        /* Info List */
        .info-list {
            display: flex;
            flex-direction: column;
            gap: 1.2rem;
            max-width: 860px;
        }

        .info-list-item {
            display: flex;
            gap: 1rem;
            align-items: flex-start;
            background: var(--bg-glass);
            backdrop-filter: blur(10px);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            padding: 1.3rem 1.5rem;
            transition: all var(--transition-smooth);
        }

        .info-list-item:hover {
            border-color: var(--border-glow);
        }

        .info-list-item i {
            font-size: 1.3rem;
            color: var(--accent-lime);
            margin-top: 2px;
        }

        .info-list-item div {
            flex: 1;
        }

        .info-list-item h4 {
            font-weight: 700;
            font-size: 1.05rem;
            margin-bottom: 0.3rem;
            color: var(--text-primary);
        }

        .info-list-item p {
            color: var(--text-secondary);
            font-size: 0.93rem;
            line-height: 1.6;
            margin: 0;
        }

        /* Bottom CTA */
        .bottom-cta {
            background: linear-gradient(135deg, rgba(244, 63, 94, 0.12) 0%, rgba(6, 182, 212, 0.1) 100%);
            border-radius: var(--radius-2xl);
            padding: 3.5rem 2rem;
            text-align: center;
            border: 1px solid var(--border-glow);
        }

        .bottom-cta h3 {
            font-family: var(--font-heading);
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: 1rem;
            color: var(--text-primary);
        }

        .bottom-cta p {
            color: var(--text-secondary);
            font-size: 1.05rem;
            margin-bottom: 1.8rem;
        }

        /* Footer */
        .site-footer {
            border-top: 1px solid var(--border-subtle);
            padding: 3rem 0 1.5rem;
            margin-top: var(--spacing-xl);
            background: rgba(7, 7, 13, 0.5);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }

        .footer-col h4 {
            font-weight: 700;
            font-size: 1rem;
            margin-bottom: 1rem;
            color: var(--text-primary);
        }

        .footer-col a {
            display: block;
            color: var(--text-secondary);
            font-size: 0.9rem;
            margin-bottom: 0.5rem;
            transition: color var(--transition-fast);
        }

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

        .footer-bottom {
            text-align: center;
            color: var(--text-muted);
            font-size: 0.85rem;
            border-top: 1px solid var(--border-subtle);
            padding-top: 1.8rem;
        }

        .footer-bottom p {
            margin: 0.3rem 0;
        }

        /* FAB */
        .floating-fab {
            position: fixed;
            left: 1.5rem;
            bottom: 6rem;
            z-index: 50;
            width: 56px;
            height: 56px;
            background: rgba(7, 7, 13, 0.8);
            backdrop-filter: blur(12px);
            border-radius: 28px;
            display: flex;
            align-items: center;
            justify-content: center;
            border: 2px solid transparent;
            background-clip: padding-box;
            border-image: linear-gradient(135deg, var(--accent-lime), var(--accent-cyan)) 1;
            box-shadow: var(--shadow-cyan);
            cursor: pointer;
            transition: all var(--transition-smooth);
            opacity: 0.75;
            animation: fabFloat 3s ease-in-out infinite;
        }

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

        .floating-fab:hover {
            opacity: 1;
            transform: scale(1.1);
            box-shadow: 0 0 28px rgba(6, 182, 212, 0.6);
            animation: none;
        }

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

        .floating-fab i {
            font-size: 1.4rem;
            color: var(--accent-cyan);
        }

        .floating-fab .fab-dot {
            position: absolute;
            top: 2px;
            right: 2px;
            width: 10px;
            height: 10px;
            background: var(--accent-pink);
            border-radius: 50%;
            border: 2px solid #07070D;
            animation: dotBlink 1.2s ease-in-out infinite;
        }

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

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

        @media (max-width: 520px) {
            section {
                padding: var(--spacing-md) 0;
            }
        }

/* roulang page: category4 */
:root {
            --bg-primary: #07070D;
            --bg-secondary: #0E0E1E;
            --bg-card: rgba(14, 14, 30, 0.85);
            --bg-glass: rgba(14, 14, 30, 0.65);
            --accent-lime: #A3E635;
            --accent-cyan: #06B6D4;
            --accent-pink: #F43F5E;
            --text-primary: #FFFFFF;
            --text-secondary: #94A3B8;
            --text-muted: #64748B;
            --border-glow: rgba(6, 182, 212, 0.35);
            --border-subtle: rgba(148, 163, 184, 0.18);
            --radius-md: 12px;
            --radius-lg: 18px;
            --radius-xl: 24px;
            --radius-2xl: 32px;
            --shadow-neon: 0 0 15px rgba(163, 230, 53, 0.4);
            --shadow-cyan: 0 0 20px rgba(6, 182, 212, 0.45);
            --shadow-elevation: 0 18px 40px rgba(0, 0, 0, 0.7);
            --spacing-xs: 0.5rem;
            --spacing-sm: 1rem;
            --spacing-md: 1.8rem;
            --spacing-lg: 3.2rem;
            --spacing-xl: 5rem;
            --spacing-2xl: 7rem;
            --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-smooth: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            --font-heading: 'Segoe UI', 'Inter', system-ui, -apple-system, sans-serif;
            --font-body: 'Segoe UI', 'Inter', system-ui, -apple-system, sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
            background-color: var(--bg-primary);
        }

        body {
            font-family: var(--font-body);
            background: linear-gradient(175deg, #07070D 0%, #0E0E1E 55%, #07070D 100%);
            background-attachment: fixed;
            color: var(--text-primary);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            min-height: 100vh;
            overflow-x: hidden;
            padding-top: 72px;
        }

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

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

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

        button,
        .btn {
            cursor: pointer;
            font-family: var(--font-body);
            border: none;
            outline: none;
            font-weight: 600;
            letter-spacing: 0.015em;
            transition: all var(--transition-smooth);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            white-space: nowrap;
        }

        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 var(--spacing-sm);
        }

        @media(min-width:768px) {
            .container {
                padding: 0 var(--spacing-md);
            }
        }

        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 60;
            background: rgba(7, 7, 13, 0.78);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border-subtle);
            transition: background var(--transition-smooth);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0.75rem 0;
            gap: 1.2rem;
            flex-wrap: wrap;
        }

        .logo {
            font-family: var(--font-heading);
            font-weight: 800;
            font-size: 1.25rem;
            letter-spacing: -0.4px;
            color: var(--text-primary);
            display: flex;
            align-items: center;
            gap: 0.45rem;
            line-height: 1.2;
            background: linear-gradient(135deg, #A3E635, #38BDF8);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .logo i {
            font-size: 1.6rem;
            background: linear-gradient(135deg, var(--accent-lime), var(--accent-cyan));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 1.8rem;
            list-style: none;
            font-weight: 500;
            font-size: 0.92rem;
        }

        .nav-links a {
            padding: 0.4rem 0;
            position: relative;
            color: var(--text-secondary);
            transition: color var(--transition-fast);
        }

        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: linear-gradient(90deg, var(--accent-cyan), var(--accent-lime));
            transition: width var(--transition-smooth);
            border-radius: 4px;
        }

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

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

        .header-actions {
            display: flex;
            align-items: center;
            gap: 0.7rem;
        }

        .btn-login {
            background: transparent;
            color: var(--text-primary);
            border: 1px solid var(--border-subtle);
            padding: 0.5rem 1.2rem;
            border-radius: 30px;
            font-size: 0.9rem;
            font-weight: 600;
            transition: all var(--transition-fast);
        }

        .btn-login:hover {
            border-color: var(--accent-cyan);
            color: var(--accent-cyan);
            background: rgba(6, 182, 212, 0.08);
        }

        .btn-signup {
            background: linear-gradient(135deg, #A3E635, #06B6D4);
            color: #07070D;
            padding: 0.5rem 1.4rem;
            border-radius: 30px;
            font-size: 0.9rem;
            font-weight: 700;
            box-shadow: var(--shadow-neon);
            transition: all var(--transition-fast);
        }

        .btn-signup:hover {
            transform: translateY(-1px);
            box-shadow: 0 0 25px rgba(163, 230, 53, 0.6);
            color: #07070D;
        }

        .mobile-toggle {
            display: none;
            background: transparent;
            border: 1px solid var(--border-subtle);
            color: var(--text-primary);
            font-size: 1.4rem;
            padding: 0.4rem 0.8rem;
            border-radius: var(--radius-md);
            cursor: pointer;
            transition: all var(--transition-fast);
        }

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

        @media(max-width:1024px) {
            .nav-links {
                gap: 1.2rem;
                font-size: 0.85rem;
            }
        }

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

            .nav-links {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 100%;
                left: 0;
                width: 100%;
                background: rgba(7, 7, 13, 0.95);
                backdrop-filter: blur(24px);
                -webkit-backdrop-filter: blur(24px);
                padding: 1.5rem;
                gap: 1rem;
                border-bottom: 1px solid var(--border-subtle);
                border-radius: 0 0 var(--radius-lg) var(--radius-lg);
            }

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

            .header-actions {
                gap: 0.5rem;
            }

            .btn-login,
            .btn-signup {
                padding: 0.45rem 1rem;
                font-size: 0.82rem;
            }
        }

        @media(max-width:480px) {
            .logo {
                font-size: 1rem;
            }

            .btn-login {
                padding: 0.4rem 0.8rem;
                font-size: 0.75rem;
            }

            .btn-signup {
                padding: 0.4rem 0.8rem;
                font-size: 0.75rem;
            }
        }

        .page-hero {
            padding: var(--spacing-xl) 0 var(--spacing-lg);
            position: relative;
            overflow: hidden;
        }

        .page-hero::before {
            content: '';
            position: absolute;
            top: -80px;
            right: -120px;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(6, 182, 212, 0.12) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 3rem;
            align-items: center;
            position: relative;
            z-index: 2;
        }

        .hero-content h1 {
            font-family: var(--font-heading);
            font-size: 3rem;
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 1.2rem;
            background: linear-gradient(135deg, #FFFFFF, #A3E635);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero-content p {
            font-size: 1.15rem;
            color: var(--text-secondary);
            margin-bottom: 2rem;
            line-height: 1.65;
        }

        .hero-cta-group {
            display: flex;
            gap: 1rem;
            flex-wrap: wrap;
        }

        .btn-primary {
            background: linear-gradient(135deg, #A3E635, #06B6D4);
            color: #07070D;
            padding: 0.8rem 2rem;
            border-radius: 30px;
            font-size: 1rem;
            font-weight: 700;
            box-shadow: var(--shadow-neon);
            transition: all var(--transition-fast);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 0 30px rgba(163, 230, 53, 0.65);
            color: #07070D;
        }

        .btn-outline {
            background: transparent;
            color: var(--text-primary);
            border: 1px solid var(--border-glow);
            padding: 0.8rem 2rem;
            border-radius: 30px;
            font-size: 1rem;
            font-weight: 600;
            transition: all var(--transition-fast);
        }

        .btn-outline:hover {
            border-color: var(--accent-cyan);
            background: rgba(6, 182, 212, 0.08);
            color: var(--accent-cyan);
        }

        .hero-panel {
            background: var(--bg-glass);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-xl);
            padding: 2rem;
            box-shadow: var(--shadow-elevation);
        }

        .hero-panel h3 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 1.2rem;
            color: var(--accent-lime);
        }

        .data-row {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 0.8rem 0;
            border-bottom: 1px solid var(--border-subtle);
            color: var(--text-secondary);
            font-size: 0.95rem;
        }

        .data-row:last-child {
            border-bottom: none;
        }

        .data-value {
            font-weight: 700;
            color: var(--text-primary);
        }

        .data-value.fast {
            color: var(--accent-lime);
        }

        @media(max-width:768px) {
            .hero-grid {
                grid-template-columns: 1fr;
                gap: 2rem;
            }

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

            .hero-content p {
                font-size: 1rem;
            }

            .page-hero {
                padding: var(--spacing-lg) 0 var(--spacing-md);
            }
        }

        @media(max-width:480px) {
            .hero-content h1 {
                font-size: 1.7rem;
            }
        }

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

        .section-dark {
            background: rgba(14, 14, 30, 0.4);
            border-top: 1px solid var(--border-subtle);
            border-bottom: 1px solid var(--border-subtle);
        }

        .section-label {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.08em;
            color: var(--accent-cyan);
            margin-bottom: 0.6rem;
            background: rgba(6, 182, 212, 0.12);
            padding: 0.35rem 0.9rem;
            border-radius: 20px;
        }

        .section-title {
            font-family: var(--font-heading);
            font-size: 2.4rem;
            font-weight: 800;
            margin-bottom: 1rem;
            line-height: 1.25;
            text-align: left;
        }

        .section-desc {
            color: var(--text-secondary);
            font-size: 1.05rem;
            margin-bottom: 2rem;
            line-height: 1.65;
            max-width: 700px;
            text-align: left;
        }

        .methods-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.5rem;
            margin-top: 2rem;
        }

        .method-card {
            background: var(--bg-card);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 1.8rem 1.2rem;
            text-align: center;
            transition: all var(--transition-smooth);
            position: relative;
            overflow: hidden;
        }

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

        .method-card:hover::before {
            transform: scaleX(1);
        }

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

        .method-icon {
            font-size: 2.8rem;
            margin-bottom: 1rem;
            display: block;
        }

        .method-card h4 {
            font-weight: 700;
            font-size: 1.1rem;
            margin-bottom: 0.4rem;
        }

        .method-card p {
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.5;
        }

        .method-badge {
            display: inline-block;
            background: rgba(163, 230, 53, 0.15);
            color: var(--accent-lime);
            font-size: 0.75rem;
            font-weight: 700;
            padding: 0.25rem 0.7rem;
            border-radius: 12px;
            margin-top: 0.6rem;
        }

        @media(max-width:1024px) {
            .methods-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

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

        .steps-flow {
            display: flex;
            gap: 1.5rem;
            align-items: stretch;
            margin-top: 2rem;
            flex-wrap: wrap;
        }

        .step-item {
            flex: 1;
            min-width: 220px;
            background: var(--bg-card);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 1.8rem;
            position: relative;
            transition: all var(--transition-smooth);
        }

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

        .step-number {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-lime));
            color: #07070D;
            font-weight: 800;
            font-size: 1.2rem;
            margin-bottom: 1rem;
        }

        .step-item h4 {
            font-weight: 700;
            font-size: 1.1rem;
            margin-bottom: 0.5rem;
        }

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

        .security-highlights {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 1.5rem;
            margin-top: 2rem;
        }

        .security-card {
            background: var(--bg-card);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 1.8rem;
            display: flex;
            gap: 1.2rem;
            align-items: flex-start;
            transition: all var(--transition-smooth);
        }

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

        .security-icon {
            font-size: 2rem;
            color: var(--accent-lime);
            flex-shrink: 0;
        }

        .security-card h4 {
            font-weight: 700;
            font-size: 1.1rem;
            margin-bottom: 0.4rem;
        }

        .security-card p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.5;
        }

        @media(max-width:768px) {
            .security-highlights {
                grid-template-columns: 1fr;
            }

            .section-title {
                font-size: 1.8rem;
            }
        }

        .comparison-table-wrap {
            overflow-x: auto;
            margin-top: 2rem;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-subtle);
        }

        .comparison-table {
            width: 100%;
            border-collapse: collapse;
            min-width: 600px;
        }

        .comparison-table th {
            background: rgba(6, 182, 212, 0.1);
            padding: 1rem 1.5rem;
            text-align: left;
            font-weight: 700;
            font-size: 0.9rem;
            color: var(--accent-cyan);
            border-bottom: 1px solid var(--border-subtle);
        }

        .comparison-table td {
            padding: 1rem 1.5rem;
            border-bottom: 1px solid var(--border-subtle);
            font-size: 0.9rem;
            color: var(--text-secondary);
        }

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

        .comparison-table .highlight-row {
            background: rgba(163, 230, 53, 0.04);
        }

        .comparison-table .check-icon {
            color: var(--accent-lime);
            font-weight: 700;
        }

        .faq-list {
            margin-top: 2rem;
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }

        .faq-item {
            background: var(--bg-card);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: all var(--transition-smooth);
        }

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

        .faq-question {
            padding: 1.2rem 1.8rem;
            font-weight: 700;
            font-size: 1rem;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            user-select: none;
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-smooth);
            padding: 0 1.8rem;
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.6;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding-bottom: 1.2rem;
        }

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

        .cta-strip {
            background: linear-gradient(135deg, rgba(6, 182, 212, 0.1), rgba(163, 230, 53, 0.08));
            border: 1px solid var(--border-glow);
            border-radius: var(--radius-xl);
            padding: 2.5rem 2rem;
            text-align: center;
            margin-top: var(--spacing-lg);
        }

        .cta-strip h3 {
            font-size: 1.8rem;
            font-weight: 800;
            margin-bottom: 0.8rem;
        }

        .cta-strip p {
            color: var(--text-secondary);
            margin-bottom: 1.5rem;
            font-size: 1rem;
        }

        .news-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.5rem;
            margin-top: 2rem;
        }

        .news-card {
            background: var(--bg-card);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: all var(--transition-smooth);
        }

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

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

        .news-card-body {
            padding: 1.2rem;
        }

        .news-card-body h4 {
            font-weight: 700;
            font-size: 1rem;
            margin-bottom: 0.5rem;
            line-height: 1.4;
        }

        .news-card-body p {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.5;
        }

        .news-card-body .meta {
            font-size: 0.78rem;
            color: var(--text-muted);
            margin-top: 0.6rem;
            display: flex;
            gap: 1rem;
        }

        @media(max-width:1024px) {
            .news-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

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

        .site-footer {
            background: rgba(7, 7, 13, 0.9);
            border-top: 1px solid var(--border-subtle);
            padding: var(--spacing-xl) 0 var(--spacing-md);
            margin-top: var(--spacing-xl);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 2rem;
            margin-bottom: 2rem;
        }

        .footer-col h4 {
            font-weight: 700;
            font-size: 1rem;
            margin-bottom: 1rem;
            color: var(--text-primary);
        }

        .footer-col a {
            display: block;
            color: var(--text-secondary);
            font-size: 0.9rem;
            padding: 0.35rem 0;
            transition: color var(--transition-fast);
        }

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

        .footer-bottom {
            border-top: 1px solid var(--border-subtle);
            padding-top: 1.5rem;
            text-align: center;
            color: var(--text-muted);
            font-size: 0.85rem;
        }

        .fab-left {
            position: fixed;
            left: 1.2rem;
            bottom: 5rem;
            z-index: 55;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: rgba(7, 7, 13, 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: 1.6rem;
            color: var(--accent-lime);
            box-shadow: 0 0 20px rgba(6, 182, 212, 0.45);
            cursor: pointer;
            transition: all var(--transition-smooth);
            animation: fabPulse 3s infinite;
        }

        .fab-left:hover {
            transform: scale(1.1);
            color: var(--accent-cyan);
            box-shadow: 0 0 30px rgba(6, 182, 212, 0.7);
        }

        @keyframes fabPulse {
            0%,
            100% {
                box-shadow: 0 0 20px rgba(6, 182, 212, 0.45);
            }
            50% {
                box-shadow: 0 0 35px rgba(6, 182, 212, 0.75);
            }
        }

        .fab-badge {
            position: absolute;
            top: -4px;
            right: -4px;
            width: 18px;
            height: 18px;
            background: var(--accent-pink);
            border-radius: 50%;
            border: 2px solid #07070D;
            animation: badgeBlink 1.5s infinite;
        }

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

        @media(max-width:768px) {
            .fab-left {
                width: 50px;
                height: 50px;
                font-size: 1.4rem;
                bottom: 4rem;
                left: 1rem;
            }
        }