/* roulang page: index */
:root {
            --bg-primary: #0B1A30;
            --bg-deep: #0F0C20;
            --bg-card: rgba(255, 255, 255, 0.04);
            --bg-card-solid: rgba(11, 26, 48, 0.92);
            --glass-border: rgba(255, 255, 255, 0.12);
            --glass-highlight: rgba(255, 255, 255, 0.06);
            --accent-cyan: #00F0FF;
            --accent-lime: #CCFF00;
            --accent-blue: #1E90FF;
            --accent-purple: #8A2BE2;
            --text-white: #FFFFFF;
            --text-silver: #A6ACAF;
            --text-muted: #7A8296;
            --danger: #FF3B5C;
            --success: #00E676;
            --warning: #FFB300;
            --radius-sm: 8px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --radius-xl: 32px;
            --shadow-glass: 0 8px 32px rgba(0, 0, 0, 0.35);
            --shadow-glow-cyan: 0 0 20px rgba(0, 240, 255, 0.3);
            --shadow-glow-lime: 0 0 20px rgba(204, 255, 0, 0.25);
            --shadow-elevated: 0 20px 60px rgba(0, 0, 0, 0.5);
            --font-sans: 'Inter', 'Segoe UI', 'Roboto', -apple-system, BlinkMacSystemFont, sans-serif;
            --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-smooth: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-bounce: 0.5s cubic-bezier(0.68, -0.55, 0.265, 1.55);
            --container-max: 1240px;
            --container-tight: 1100px;
            --spacing-xs: 0.5rem;
            --spacing-sm: 1rem;
            --spacing-md: 2rem;
            --spacing-lg: 4rem;
            --spacing-xl: 6rem;
            --spacing-xxl: 8rem;
            --nav-height: 76px;
            --nav-height-mobile: 64px;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            font-size: 16px;
        }

        body {
            font-family: var(--font-sans);
            background: var(--bg-deep);
            color: var(--text-white);
            line-height: 1.65;
            overflow-x: hidden;
            background-image: 
                radial-gradient(ellipse at 20% 10%, rgba(0, 240, 255, 0.06) 0%, transparent 50%),
                radial-gradient(ellipse at 80% 30%, rgba(204, 255, 0, 0.04) 0%, transparent 50%),
                radial-gradient(ellipse at 50% 80%, rgba(30, 144, 255, 0.05) 0%, transparent 50%),
                repeating-linear-gradient(0deg, transparent, transparent 49px, rgba(255,255,255,0.015) 50px);
            background-attachment: fixed;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-md);
        }

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

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

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

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

        .container {
            width: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }

        .container-tight {
            max-width: var(--container-tight);
        }

        /* Typography */
        h1, h2, h3, h4, h5, h6 {
            font-weight: 800;
            line-height: 1.25;
            letter-spacing: -0.02em;
        }

        h1 {
            font-size: clamp(2.2rem, 5vw, 3.8rem);
            font-weight: 900;
            margin-bottom: 1.2rem;
            background: linear-gradient(135deg, #FFFFFF 0%, #A6E3E9 50%, #CCFF00 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        h2 {
            font-size: clamp(1.6rem, 3.5vw, 2.4rem);
            margin-bottom: 0.8rem;
            color: var(--text-white);
        }

        h3 {
            font-size: clamp(1.1rem, 2vw, 1.4rem);
            margin-bottom: 0.5rem;
            color: #E0E7FF;
        }

        p {
            margin-bottom: 1rem;
            color: var(--text-silver);
        }

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

        .text-lime {
            color: var(--accent-lime);
        }

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

        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 0.8rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.08em;
            color: var(--accent-cyan);
            margin-bottom: 1rem;
            background: rgba(0, 240, 255, 0.08);
            padding: 6px 14px;
            border-radius: 100px;
            border: 1px solid rgba(0, 240, 255, 0.2);
        }

        /* Navigation */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(15, 12, 32, 0.85);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            transition: background var(--transition-smooth);
        }

        .site-header.scrolled {
            background: rgba(15, 12, 32, 0.97);
            box-shadow: 0 4px 30px rgba(0, 0, 0, 0.4);
        }

        .nav-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--nav-height);
            padding: 0 24px;
            max-width: var(--container-max);
            margin: 0 auto;
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 900;
            font-size: 1.05rem;
            color: var(--text-white);
            text-decoration: none;
            letter-spacing: -0.01em;
            flex-shrink: 0;
            max-width: 320px;
        }

        .nav-logo .logo-icon {
            width: 42px;
            height: 42px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            flex-shrink: 0;
            box-shadow: 0 0 15px rgba(0, 240, 255, 0.3);
        }

        .nav-logo span {
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

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

        .nav-links a {
            color: var(--text-silver);
            font-weight: 600;
            font-size: 0.92rem;
            position: relative;
            padding: 6px 0;
            transition: color var(--transition-fast);
        }

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

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

        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            right: 0;
            height: 2px;
            background: var(--accent-cyan);
            border-radius: 2px;
            box-shadow: 0 0 10px rgba(0, 240, 255, 0.5);
        }

        .nav-auth {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .btn-login {
            background: transparent;
            color: var(--text-white);
            font-weight: 700;
            font-size: 0.9rem;
            padding: 10px 18px;
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: 100px;
            cursor: pointer;
            transition: all var(--transition-fast);
        }

        .btn-login:hover {
            border-color: rgba(255, 255, 255, 0.35);
            background: rgba(255, 255, 255, 0.05);
        }

        .btn-signup {
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-blue));
            color: #000;
            font-weight: 800;
            font-size: 0.9rem;
            padding: 10px 22px;
            border-radius: 100px;
            cursor: pointer;
            box-shadow: 0 0 20px rgba(0, 240, 255, 0.35);
            transition: all var(--transition-fast);
            border: none;
        }

        .btn-signup:hover {
            box-shadow: 0 0 30px rgba(0, 240, 255, 0.55);
            transform: translateY(-2px);
        }

        .btn-signup:active {
            transform: translateY(0);
        }

        .nav-toggle {
            display: none;
            background: transparent;
            border: none;
            color: var(--text-white);
            font-size: 1.5rem;
            cursor: pointer;
            padding: 8px;
            border-radius: 8px;
        }

        /* Mobile Nav */
        .mobile-menu {
            display: none;
            position: fixed;
            top: var(--nav-height-mobile);
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(15, 12, 32, 0.98);
            backdrop-filter: blur(30px);
            z-index: 999;
            padding: 24px;
            flex-direction: column;
            gap: 8px;
            overflow-y: auto;
        }

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

        .mobile-menu a {
            color: var(--text-silver);
            font-size: 1.1rem;
            font-weight: 600;
            padding: 14px 16px;
            border-radius: 12px;
            transition: all var(--transition-fast);
        }

        .mobile-menu a:hover {
            background: rgba(255, 255, 255, 0.06);
            color: var(--text-white);
        }

        .mobile-menu a.active {
            color: var(--accent-cyan);
            background: rgba(0, 240, 255, 0.08);
        }

        /* Hero Section - Crowdfunding style */
        .hero-section {
            padding-top: calc(var(--nav-height) + 40px);
            padding-bottom: var(--spacing-lg);
            position: relative;
            min-height: 85vh;
            display: flex;
            align-items: center;
            background-image: url('/assets/images/backpic/back-1.jpg');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            position: relative;
            overflow: hidden;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(15,12,32,0.85) 0%, rgba(11,26,48,0.75) 40%, rgba(15,12,32,0.92) 100%);
            z-index: 1;
        }

        .hero-section::after {
            content: '';
            position: absolute;
            inset: 0;
            background: 
                radial-gradient(circle at 30% 40%, rgba(0, 240, 255, 0.12) 0%, transparent 50%),
                radial-gradient(circle at 70% 60%, rgba(204, 255, 0, 0.08) 0%, transparent 50%);
            z-index: 1;
            pointer-events: none;
        }

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

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

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(0, 240, 255, 0.1);
            border: 1px solid rgba(0, 240, 255, 0.3);
            border-radius: 100px;
            padding: 8px 18px;
            font-size: 0.85rem;
            font-weight: 700;
            color: var(--accent-cyan);
            margin-bottom: 20px;
            letter-spacing: 0.03em;
        }

        .hero-badge .pulse-dot {
            width: 8px;
            height: 8px;
            background: var(--success);
            border-radius: 50%;
            animation: pulse-dot 1.5s infinite;
        }

        .hero-description {
            font-size: 1.15rem;
            line-height: 1.7;
            color: var(--text-silver);
            margin-bottom: 2rem;
            max-width: 540px;
        }

        .hero-cta-group {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            margin-bottom: 2rem;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-blue));
            color: #000;
            font-weight: 800;
            font-size: 1rem;
            padding: 16px 32px;
            border-radius: 100px;
            box-shadow: 0 0 30px rgba(0, 240, 255, 0.4);
            transition: all var(--transition-bounce);
            cursor: pointer;
            border: none;
            text-decoration: none;
        }

        .btn-primary:hover {
            box-shadow: 0 0 45px rgba(0, 240, 255, 0.65);
            transform: translateY(-3px) scale(1.02);
        }

        .btn-primary:active {
            transform: translateY(0) scale(0.98);
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: rgba(255, 255, 255, 0.06);
            color: var(--text-white);
            font-weight: 700;
            font-size: 1rem;
            padding: 16px 32px;
            border-radius: 100px;
            border: 1px solid rgba(255, 255, 255, 0.2);
            backdrop-filter: blur(10px);
            transition: all var(--transition-fast);
            cursor: pointer;
            text-decoration: none;
        }

        .btn-secondary:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: rgba(255, 255, 255, 0.4);
            transform: translateY(-2px);
        }

        .hero-stats {
            display: flex;
            gap: 32px;
            flex-wrap: wrap;
        }

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

        .hero-stat .stat-value {
            font-size: 1.6rem;
            font-weight: 900;
            color: var(--accent-cyan);
            letter-spacing: -0.01em;
        }

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

        /* Progress Ring */
        .hero-right {
            display: flex;
            flex-direction: column;
            gap: 24px;
        }

        .progress-card {
            background: var(--bg-card);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-lg);
            padding: 32px;
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            box-shadow: var(--shadow-glass);
        }

        .progress-ring-container {
            display: flex;
            align-items: center;
            gap: 28px;
            margin-bottom: 20px;
        }

        .progress-ring {
            width: 110px;
            height: 110px;
            border-radius: 50%;
            background: conic-gradient(var(--accent-cyan) 0% 92%, rgba(255,255,255,0.1) 92% 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
            flex-shrink: 0;
            box-shadow: 0 0 25px rgba(0, 240, 255, 0.25);
            animation: ring-glow 3s ease-in-out infinite;
        }

        .progress-ring::before {
            content: '';
            position: absolute;
            inset: 8px;
            border-radius: 50%;
            background: var(--bg-deep);
        }

        .progress-ring .ring-value {
            position: relative;
            z-index: 1;
            font-size: 1.5rem;
            font-weight: 900;
            color: var(--accent-cyan);
        }

        .progress-info h4 {
            font-size: 1.1rem;
            color: var(--text-white);
            margin-bottom: 6px;
        }

        .progress-info p {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin: 0;
        }

        /* Tier cards */
        .tier-list {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 14px;
        }

        .tier-card {
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-md);
            padding: 18px;
            cursor: pointer;
            transition: all var(--transition-fast);
            text-align: left;
        }

        .tier-card:hover {
            border-color: rgba(0, 240, 255, 0.4);
            background: rgba(0, 240, 255, 0.05);
            box-shadow: 0 0 20px rgba(0, 240, 255, 0.15);
        }

        .tier-card.recommended {
            border-color: var(--accent-lime);
            background: rgba(204, 255, 0, 0.05);
        }

        .tier-card .tier-name {
            font-weight: 800;
            font-size: 1rem;
            color: var(--text-white);
            display: block;
            margin-bottom: 4px;
        }

        .tier-card .tier-badge {
            font-size: 0.7rem;
            font-weight: 800;
            text-transform: uppercase;
            letter-spacing: 0.06em;
            color: #000;
            background: var(--accent-lime);
            padding: 3px 10px;
            border-radius: 100px;
            display: inline-block;
            margin-bottom: 8px;
        }

        .tier-card .tier-desc {
            font-size: 0.85rem;
            color: var(--text-silver);
            margin: 0;
            line-height: 1.5;
        }

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

        .section-alt {
            background: rgba(255, 255, 255, 0.02);
            border-top: 1px solid rgba(255, 255, 255, 0.04);
            border-bottom: 1px solid rgba(255, 255, 255, 0.04);
        }

        .section-heading {
            margin-bottom: 2.5rem;
        }

        .section-heading .section-label {
            margin-bottom: 0.8rem;
        }

        .section-description {
            font-size: 1.05rem;
            color: var(--text-silver);
            max-width: 640px;
            line-height: 1.7;
        }

        /* Group-play section */
        .group-play-layout {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 24px;
        }

        .group-play-card {
            background: var(--bg-card);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-lg);
            padding: 28px;
            backdrop-filter: blur(15px);
            transition: all var(--transition-fast);
            text-align: left;
        }

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

        .group-play-card .card-icon {
            width: 52px;
            height: 52px;
            border-radius: 14px;
            background: linear-gradient(135deg, rgba(0, 240, 255, 0.15), rgba(30, 144, 255, 0.1));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            color: var(--accent-cyan);
            margin-bottom: 16px;
        }

        .group-play-card h3 {
            font-size: 1.15rem;
            margin-bottom: 8px;
        }

        .group-play-card p {
            font-size: 0.92rem;
            color: var(--text-silver);
            margin: 0;
        }

        /* Hot downloads */
        .hot-downloads-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
            gap: 18px;
        }

        .hot-download-card {
            position: relative;
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--glass-border);
            background: var(--bg-card);
            transition: all var(--transition-fast);
            cursor: pointer;
            text-align: left;
        }

        .hot-download-card:hover {
            border-color: rgba(0, 240, 255, 0.4);
            box-shadow: var(--shadow-glow-cyan);
            transform: translateY(-3px);
        }

        .hot-download-card .card-image-wrapper {
            position: relative;
            aspect-ratio: 16/10;
            overflow: hidden;
        }

        .hot-download-card .card-image-wrapper img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 0;
            transition: transform 0.4s ease;
        }

        .hot-download-card:hover .card-image-wrapper img {
            transform: scale(1.05);
        }

        .hot-download-card .card-hot-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            background: var(--danger);
            color: #fff;
            font-size: 0.7rem;
            font-weight: 800;
            padding: 4px 10px;
            border-radius: 100px;
            text-transform: uppercase;
            letter-spacing: 0.04em;
            z-index: 2;
        }

        .hot-download-card .card-body {
            padding: 16px 18px 20px;
        }

        .hot-download-card .card-body h4 {
            font-size: 0.95rem;
            font-weight: 700;
            margin-bottom: 6px;
            color: var(--text-white);
        }

        .hot-download-card .card-body p {
            font-size: 0.82rem;
            color: var(--text-muted);
            margin: 0;
        }

        /* News section */
        .news-layout {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 40px;
        }

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

        .news-list li {
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            padding: 16px 0;
            transition: background var(--transition-fast);
        }

        .news-list li:first-child {
            padding-top: 0;
        }

        .news-list li:hover {
            background: rgba(255, 255, 255, 0.02);
            padding-left: 8px;
            border-radius: 4px;
        }

        .news-list a {
            display: block;
            color: var(--text-white);
            font-weight: 600;
            font-size: 0.98rem;
            line-height: 1.5;
            text-decoration: none;
            transition: color var(--transition-fast);
        }

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

        .news-meta {
            display: flex;
            gap: 14px;
            font-size: 0.78rem;
            color: var(--text-muted);
            margin-top: 6px;
        }

        .news-meta .news-category {
            color: var(--accent-cyan);
            font-weight: 600;
        }

        .news-sidebar {
            background: var(--bg-card);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-lg);
            padding: 28px;
            backdrop-filter: blur(15px);
            height: fit-content;
        }

        .news-sidebar h4 {
            font-size: 1rem;
            margin-bottom: 16px;
            color: var(--text-white);
        }

        .news-sidebar .sidebar-hot-item {
            display: flex;
            gap: 12px;
            align-items: center;
            padding: 10px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
        }

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

        .news-sidebar .sidebar-hot-item .hot-number {
            font-size: 1.3rem;
            font-weight: 900;
            color: var(--accent-lime);
            min-width: 36px;
        }

        .news-sidebar .sidebar-hot-item span {
            font-size: 0.9rem;
            color: var(--text-silver);
            font-weight: 500;
        }

        /* Installation guide section */
        .install-guide-layout {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 20px;
        }

        .install-step {
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: var(--radius-md);
            padding: 24px;
            transition: all var(--transition-fast);
            text-align: left;
        }

        .install-step:hover {
            border-color: rgba(0, 240, 255, 0.3);
            box-shadow: var(--shadow-glow-cyan);
        }

        .install-step .step-number {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-blue));
            font-weight: 900;
            color: #000;
            font-size: 0.95rem;
            margin-bottom: 14px;
        }

        .install-step h4 {
            font-size: 0.95rem;
            color: var(--text-white);
            margin-bottom: 6px;
        }

        .install-step p {
            font-size: 0.85rem;
            color: var(--text-silver);
            margin: 0;
        }

        /* Feature highlights */
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 28px;
        }

        .feature-item {
            display: flex;
            gap: 18px;
            align-items: flex-start;
            text-align: left;
            padding: 20px;
            border-radius: var(--radius-md);
            background: rgba(255, 255, 255, 0.02);
            border: 1px solid rgba(255, 255, 255, 0.06);
            transition: all var(--transition-fast);
        }

        .feature-item:hover {
            background: rgba(255, 255, 255, 0.04);
            border-color: rgba(0, 240, 255, 0.25);
        }

        .feature-item .feature-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: linear-gradient(135deg, rgba(204, 255, 0, 0.12), rgba(0, 240, 255, 0.08));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            color: var(--accent-lime);
            flex-shrink: 0;
        }

        .feature-item h4 {
            font-size: 1rem;
            color: var(--text-white);
            margin-bottom: 5px;
        }

        .feature-item p {
            font-size: 0.88rem;
            color: var(--text-muted);
            margin: 0;
            line-height: 1.55;
        }

        /* FAQ Section */
        .faq-container {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            margin-bottom: 6px;
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 20px 8px;
            cursor: pointer;
            font-weight: 700;
            font-size: 1rem;
            color: var(--text-white);
            transition: color var(--transition-fast);
            background: transparent;
            border: none;
            text-align: left;
            width: 100%;
        }

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

        .faq-question .faq-icon {
            font-size: 0.9rem;
            color: var(--text-muted);
            transition: transform var(--transition-fast);
            flex-shrink: 0;
        }

        .faq-item.open .faq-question .faq-icon {
            transform: rotate(45deg);
            color: var(--accent-cyan);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            color: var(--text-silver);
            font-size: 0.92rem;
            line-height: 1.65;
            padding: 0 8px;
        }

        .faq-item.open .faq-answer {
            max-height: 400px;
            padding: 0 8px 20px;
        }

        .faq-answer p {
            margin: 0;
        }

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

        .cta-box {
            background: linear-gradient(135deg, rgba(0, 240, 255, 0.08) 0%, rgba(30, 144, 255, 0.06) 50%, rgba(204, 255, 0, 0.05) 100%);
            border: 1px solid rgba(0, 240, 255, 0.2);
            border-radius: var(--radius-xl);
            padding: 56px 48px;
            text-align: center;
            backdrop-filter: blur(20px);
            box-shadow: var(--shadow-glass);
        }

        .cta-box h2 {
            font-size: clamp(1.8rem, 3.5vw, 2.5rem);
            margin-bottom: 16px;
        }

        .cta-box p {
            font-size: 1.05rem;
            color: var(--text-silver);
            max-width: 520px;
            margin: 0 auto 28px;
        }

        /* Footer */
        .site-footer {
            background: rgba(10, 8, 22, 0.95);
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding: 48px 0 24px;
            position: relative;
        }

        .footer-container {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr 0.8fr;
            gap: 40px;
            margin-bottom: 32px;
        }

        .footer-brand {
            max-width: 360px;
        }

        .footer-brand .nav-logo {
            margin-bottom: 16px;
            max-width: 100%;
        }

        .footer-brand p {
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 18px;
        }

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

        .footer-social a {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-silver);
            font-size: 1rem;
            transition: all var(--transition-fast);
            text-decoration: none;
        }

        .footer-social a:hover {
            background: var(--accent-cyan);
            color: #000;
        }

        .footer-col h5 {
            font-size: 0.9rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 16px;
            text-transform: uppercase;
            letter-spacing: 0.04em;
        }

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

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

        .footer-col ul a {
            color: var(--text-muted);
            font-size: 0.88rem;
            text-decoration: none;
            transition: color var(--transition-fast);
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            padding-top: 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        .footer-bottom .badge-18 {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--danger);
            color: #fff;
            font-weight: 900;
            font-size: 0.75rem;
            margin-right: 4px;
        }

        .footer-bottom .license-info {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.78rem;
            color: var(--text-muted);
        }

        /* FAB */
        .fab-float {
            position: fixed;
            left: 24px;
            bottom: 96px;
            z-index: 50;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: rgba(0, 0, 0, 0.7);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 2px solid;
            border-image: linear-gradient(135deg, var(--accent-cyan), var(--accent-lime)) 1;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-cyan);
            font-size: 1.4rem;
            cursor: pointer;
            opacity: 0.7;
            box-shadow: 0 0 18px rgba(0, 240, 255, 0.35);
            transition: all var(--transition-bounce);
            animation: fab-breathe 3s ease-in-out infinite;
            text-decoration: none;
        }

        .fab-float:hover {
            opacity: 1;
            transform: scale(1.12);
            box-shadow: 0 0 30px rgba(0, 240, 255, 0.6);
            color: var(--accent-lime);
        }

        .fab-float:active {
            transform: scale(0.92);
        }

        .fab-float .fab-notification {
            position: absolute;
            top: -4px;
            right: -4px;
            width: 12px;
            height: 12px;
            background: var(--danger);
            border-radius: 50%;
            animation: blink-notification 1.4s infinite;
        }

        /* Animations */
        @keyframes pulse-dot {
            0%, 100% { opacity: 1; transform: scale(1); }
            50% { opacity: 0.4; transform: scale(0.7); }
        }

        @keyframes ring-glow {
            0%, 100% { box-shadow: 0 0 22px rgba(0, 240, 255, 0.2); }
            50% { box-shadow: 0 0 40px rgba(0, 240, 255, 0.45); }
        }

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

        @keyframes blink-notification {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.2; }
        }

        @keyframes fadeInUp {
            from { opacity: 0; transform: translateY(30px); }
            to { opacity: 1; transform: translateY(0); }
        }

        .fade-in-up {
            animation: fadeInUp 0.8s ease forwards;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .hero-content {
                grid-template-columns: 1fr;
                gap: 36px;
            }
            .hero-right {
                order: -1;
            }
            .news-layout {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-container {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            :root {
                --nav-height: var(--nav-height-mobile);
                --spacing-lg: 2.5rem;
                --spacing-xl: 4rem;
                --spacing-xxl: 5rem;
            }

            .nav-links {
                display: none;
            }

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

            .nav-toggle {
                display: block;
            }

            .nav-logo {
                font-size: 0.9rem;
                max-width: 200px;
            }
            .nav-logo .logo-icon {
                width: 34px;
                height: 34px;
                font-size: 1rem;
            }

            .hero-section {
                padding-top: calc(var(--nav-height-mobile) + 20px);
                min-height: auto;
                padding-bottom: var(--spacing-lg);
            }

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

            .hero-cta-group {
                flex-direction: column;
                gap: 10px;
            }
            .btn-primary, .btn-secondary {
                justify-content: center;
                width: 100%;
                padding: 14px 24px;
                font-size: 0.95rem;
            }

            .hero-stats {
                gap: 16px;
            }
            .hero-stat .stat-value {
                font-size: 1.2rem;
            }

            .tier-list {
                grid-template-columns: 1fr;
            }

            .group-play-layout,
            .feature-grid,
            .install-guide-layout {
                grid-template-columns: 1fr;
            }

            .hot-downloads-grid {
                grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
                gap: 12px;
            }

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

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

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

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

        @media (max-width: 520px) {
            .hot-downloads-grid {
                grid-template-columns: 1fr;
            }
            .progress-ring-container {
                flex-direction: column;
                text-align: center;
                gap: 16px;
            }
            .tier-card {
                padding: 14px;
            }
            .hero-content {
                gap: 24px;
            }
            .section {
                padding: var(--spacing-lg) 0;
            }
            .nav-auth .btn-login {
                display: none;
            }
            .nav-auth .btn-signup {
                padding: 8px 12px;
                font-size: 0.75rem;
            }
        }

/* roulang page: article */
:root {
            --bg-primary: #0B1A30;
            --bg-deep: #0F0C20;
            --bg-card: rgba(255, 255, 255, 0.04);
            --bg-card-solid: rgba(11, 26, 48, 0.92);
            --glass-border: rgba(255, 255, 255, 0.12);
            --glass-highlight: rgba(255, 255, 255, 0.06);
            --accent-cyan: #00F0FF;
            --accent-lime: #CCFF00;
            --accent-blue: #1E90FF;
            --accent-purple: #8A2BE2;
            --text-white: #FFFFFF;
            --text-silver: #A6ACAF;
            --text-muted: #7A8296;
            --danger: #FF3B5C;
            --success: #00E676;
            --warning: #FFB300;
            --radius-sm: 8px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --radius-xl: 32px;
            --shadow-glass: 0 8px 32px rgba(0, 0, 0, 0.35);
            --shadow-glow-cyan: 0 0 20px rgba(0, 240, 255, 0.3);
            --shadow-glow-lime: 0 0 20px rgba(204, 255, 0, 0.25);
            --shadow-elevated: 0 20px 60px rgba(0, 0, 0, 0.5);
            --font-sans: 'Inter', 'Segoe UI', 'Roboto', -apple-system, BlinkMacSystemFont, sans-serif;
            --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-smooth: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-bounce: 0.5s cubic-bezier(0.68, -0.55, 0.265, 1.55);
            --container-max: 1240px;
            --container-tight: 1100px;
            --spacing-xs: 0.5rem;
            --spacing-sm: 1rem;
            --spacing-md: 2rem;
            --spacing-lg: 4rem;
            --spacing-xl: 6rem;
            --spacing-xxl: 8rem;
            --nav-height: 76px;
            --nav-height-mobile: 64px;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            font-size: 16px;
        }

        body {
            font-family: var(--font-sans);
            background: var(--bg-deep);
            color: var(--text-white);
            line-height: 1.65;
            overflow-x: hidden;
            background-image: 
                radial-gradient(ellipse at 20% 10%, rgba(0, 240, 255, 0.06) 0%, transparent 50%),
                radial-gradient(ellipse at 80% 30%, rgba(204, 255, 0, 0.04) 0%, transparent 50%),
                radial-gradient(ellipse at 50% 80%, rgba(30, 144, 255, 0.05) 0%, transparent 50%),
                repeating-linear-gradient(0deg, transparent, transparent 49px, rgba(255,255,255,0.015) 50px);
            background-attachment: fixed;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            padding-top: var(--nav-height-mobile);
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-md);
        }

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

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

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

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

        .container {
            width: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }

        .container-tight {
            max-width: var(--container-tight);
        }

        .text-accent {
            color: var(--accent-cyan);
        }
        .text-lime {
            color: var(--accent-lime);
        }
        .text-muted {
            color: var(--text-muted);
        }

        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 0.8rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.08em;
            color: var(--accent-cyan);
            margin-bottom: 1rem;
            background: rgba(0, 240, 255, 0.08);
            padding: 6px 14px;
            border-radius: 100px;
            border: 1px solid rgba(0, 240, 255, 0.2);
        }

        /* Navigation */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(15, 12, 32, 0.85);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            transition: background var(--transition-smooth);
        }

        .site-header.scrolled {
            background: rgba(15, 12, 32, 0.97);
            box-shadow: 0 4px 30px rgba(0, 0, 0, 0.4);
        }

        .nav-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--nav-height-mobile);
            padding: 0 16px;
            max-width: var(--container-max);
            margin: 0 auto;
            gap: 12px;
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 1.1rem;
            color: var(--text-white);
            letter-spacing: -0.02em;
            white-space: nowrap;
        }

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

        .logo-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, rgba(0, 240, 255, 0.2), rgba(204, 255, 0, 0.15));
            border-radius: 10px;
            color: var(--accent-cyan);
            font-size: 1.2rem;
            border: 1px solid rgba(0, 240, 255, 0.3);
            flex-shrink: 0;
        }

        .nav-links {
            display: none;
            list-style: none;
            gap: 24px;
        }

        .nav-links a {
            color: var(--text-silver);
            font-size: 0.9rem;
            font-weight: 600;
            position: relative;
            padding: 8px 0;
        }

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

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

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

        .btn-login {
            background: transparent;
            color: var(--text-white);
            padding: 8px 16px;
            font-size: 0.85rem;
            font-weight: 700;
            border-radius: 100px;
            border: 1px solid rgba(255, 255, 255, 0.2);
        }

        .btn-login:hover {
            background: rgba(255, 255, 255, 0.08);
            border-color: rgba(255, 255, 255, 0.35);
        }

        .btn-signup {
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-blue));
            color: var(--bg-deep);
            padding: 8px 18px;
            font-size: 0.85rem;
            font-weight: 800;
            border-radius: 100px;
            letter-spacing: 0.01em;
            box-shadow: var(--shadow-glow-cyan);
        }

        .btn-signup:hover {
            transform: translateY(-2px);
            box-shadow: 0 0 30px rgba(0, 240, 255, 0.5);
            color: var(--bg-deep);
        }

        .nav-toggle {
            background: transparent;
            color: var(--text-white);
            font-size: 1.4rem;
            padding: 6px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 8px;
            border: 1px solid rgba(255, 255, 255, 0.15);
            width: 42px;
            height: 42px;
            flex-shrink: 0;
        }

        .nav-toggle:hover {
            background: rgba(255, 255, 255, 0.08);
            border-color: rgba(0, 240, 255, 0.4);
        }

        /* Mobile menu */
        .mobile-menu {
            display: none;
            background: rgba(15, 12, 32, 0.98);
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            padding: 16px 24px 24px;
            flex-direction: column;
            gap: 8px;
        }

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

        .mobile-menu a {
            color: var(--text-silver);
            font-weight: 600;
            padding: 10px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
            display: block;
        }

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

        /* Main */
        main {
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        /* Breadcrumb */
        .breadcrumb-wrapper {
            background: rgba(15, 12, 32, 0.5);
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
            padding: 20px 0;
            margin-bottom: 2rem;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 0.85rem;
            color: var(--text-muted);
            list-style: none;
        }

        .breadcrumb li {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .breadcrumb li:not(:last-child)::after {
            content: '/';
            color: var(--text-muted);
            font-size: 0.75rem;
            margin-left: 4px;
        }

        .breadcrumb a {
            color: var(--text-silver);
        }

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

        .breadcrumb .current {
            color: var(--text-white);
            font-weight: 600;
        }

        /* Article Hero */
        .article-hero {
            padding: 3rem 0 2rem;
            margin-bottom: 2rem;
        }

        .article-hero .container {
            max-width: 800px;
        }

        .article-category-tag {
            display: inline-block;
            background: linear-gradient(135deg, rgba(0, 240, 255, 0.15), rgba(204, 255, 0, 0.1));
            color: var(--accent-cyan);
            padding: 6px 16px;
            border-radius: 100px;
            font-size: 0.8rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.05em;
            margin-bottom: 1rem;
            border: 1px solid rgba(0, 240, 255, 0.3);
        }

        .article-hero h1 {
            font-size: 2.2rem;
            font-weight: 900;
            line-height: 1.25;
            letter-spacing: -0.03em;
            margin-bottom: 1.5rem;
            color: var(--text-white);
        }

        .article-meta {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 16px 24px;
            font-size: 0.9rem;
            color: var(--text-muted);
            padding-bottom: 1.5rem;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .article-meta span {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .article-meta i {
            color: var(--accent-cyan);
            font-size: 0.9rem;
        }

        .article-thumbnail {
            margin: 2rem 0;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-elevated);
            border: 1px solid var(--glass-border);
        }

        .article-thumbnail img {
            width: 100%;
            border-radius: var(--radius-lg);
            object-fit: cover;
        }

        /* Article Content */
        .article-content-section {
            padding: 1rem 0 3rem;
        }

        .article-content-section .container {
            max-width: 800px;
        }

        .article-body {
            font-size: 1.05rem;
            line-height: 1.75;
            color: var(--text-silver);
        }

        .article-body h2 {
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--text-white);
            margin: 2.5rem 0 1rem;
            letter-spacing: -0.02em;
            line-height: 1.3;
        }

        .article-body h3 {
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--text-white);
            margin: 2rem 0 0.75rem;
        }

        .article-body p {
            margin-bottom: 1.25rem;
        }

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

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

        .article-body img {
            margin: 1.5rem 0;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-glass);
        }

        .article-body a {
            color: var(--accent-cyan);
            border-bottom: 1px solid rgba(0, 240, 255, 0.3);
        }

        .article-body a:hover {
            color: var(--accent-lime);
            border-bottom-color: rgba(204, 255, 0, 0.5);
        }

        .article-body blockquote {
            border-left: 3px solid var(--accent-cyan);
            padding: 1rem 1.5rem;
            margin: 1.5rem 0;
            background: rgba(0, 240, 255, 0.05);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--text-silver);
            font-style: italic;
        }

        .article-body code {
            background: rgba(255, 255, 255, 0.06);
            padding: 2px 8px;
            border-radius: 4px;
            font-family: 'SF Mono', 'Fira Code', monospace;
            font-size: 0.9em;
            color: var(--accent-lime);
        }

        .article-body table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.5rem 0;
            font-size: 0.95rem;
        }

        .article-body table th,
        .article-body table td {
            padding: 10px 14px;
            text-align: left;
            border: 1px solid rgba(255, 255, 255, 0.1);
        }

        .article-body table th {
            background: rgba(0, 240, 255, 0.08);
            color: var(--text-white);
            font-weight: 700;
        }

        .article-body table td {
            color: var(--text-silver);
        }

        /* Not found */
        .not-found {
            text-align: center;
            padding: 4rem 0;
        }

        .not-found .icon {
            font-size: 3rem;
            color: var(--text-muted);
            margin-bottom: 1.5rem;
        }

        .not-found h2 {
            font-size: 1.8rem;
            margin-bottom: 0.75rem;
        }

        .not-found p {
            color: var(--text-muted);
            margin-bottom: 2rem;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-blue));
            color: var(--bg-deep);
            padding: 12px 28px;
            font-weight: 800;
            border-radius: 100px;
            font-size: 1rem;
            box-shadow: var(--shadow-glow-cyan);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 0 35px rgba(0, 240, 255, 0.5);
            color: var(--bg-deep);
        }

        /* Share and CTA */
        .article-share-cta {
            padding: 2rem 0 4rem;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
        }

        .article-share-cta .container {
            max-width: 800px;
        }

        .share-buttons {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
            margin-bottom: 2rem;
        }

        .share-label {
            font-weight: 700;
            color: var(--text-silver);
            margin-right: 8px;
        }

        .share-btn {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 8px 16px;
            border-radius: 100px;
            font-size: 0.85rem;
            font-weight: 600;
            border: 1px solid rgba(255, 255, 255, 0.15);
            background: rgba(255, 255, 255, 0.05);
            color: var(--text-white);
        }

        .share-btn:hover {
            background: rgba(0, 240, 255, 0.15);
            border-color: rgba(0, 240, 255, 0.4);
            color: var(--accent-cyan);
            transform: translateY(-2px);
        }

        .download-cta-card {
            background: linear-gradient(135deg, rgba(0, 240, 255, 0.08), rgba(204, 255, 0, 0.06));
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-lg);
            padding: 2rem;
            text-align: center;
            margin-top: 2rem;
        }

        .download-cta-card h3 {
            font-size: 1.5rem;
            font-weight: 800;
            margin-bottom: 0.75rem;
        }

        .download-cta-card p {
            color: var(--text-silver);
            margin-bottom: 1.5rem;
        }

        .btn-download-large {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: linear-gradient(135deg, var(--accent-lime), #99cc00);
            color: var(--bg-deep);
            padding: 14px 32px;
            font-weight: 900;
            font-size: 1.1rem;
            border-radius: 100px;
            box-shadow: var(--shadow-glow-lime);
        }

        .btn-download-large:hover {
            transform: translateY(-2px);
            box-shadow: 0 0 40px rgba(204, 255, 0, 0.45);
            color: var(--bg-deep);
        }

        /* FAQ Section */
        .faq-section {
            padding: 4rem 0;
            background: rgba(15, 12, 32, 0.5);
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }

        .faq-section .container {
            max-width: 800px;
        }

        .faq-item {
            margin-bottom: 1rem;
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: var(--radius-sm);
            overflow: hidden;
            background: rgba(255, 255, 255, 0.03);
            transition: border-color var(--transition-fast);
        }

        .faq-item:hover {
            border-color: rgba(0, 240, 255, 0.25);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 16px 20px;
            cursor: pointer;
            font-weight: 700;
            color: var(--text-white);
            background: transparent;
            width: 100%;
            text-align: left;
            font-size: 1rem;
            gap: 12px;
        }

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

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-smooth), padding var(--transition-smooth);
            padding: 0 20px;
            color: var(--text-silver);
        }

        .faq-answer.open {
            max-height: 300px;
            padding: 0 20px 16px;
        }

        .faq-answer p {
            line-height: 1.7;
        }

        /* Footer */
        .site-footer {
            background: rgba(10, 8, 20, 0.95);
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 4rem 0 1.5rem;
            margin-top: auto;
        }

        .footer-container {
            display: grid;
            grid-template-columns: 1fr;
            gap: 2.5rem;
            margin-bottom: 3rem;
        }

        .footer-brand .nav-logo {
            font-size: 1.2rem;
            margin-bottom: 1rem;
        }

        .footer-brand p {
            color: var(--text-muted);
            font-size: 0.9rem;
            line-height: 1.7;
            max-width: 400px;
            margin-bottom: 1.5rem;
        }

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

        .footer-social a {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.05);
            color: var(--text-silver);
            border: 1px solid rgba(255, 255, 255, 0.1);
            transition: all var(--transition-fast);
        }

        .footer-social a:hover {
            background: rgba(0, 240, 255, 0.15);
            border-color: rgba(0, 240, 255, 0.4);
            color: var(--accent-cyan);
            transform: translateY(-3px);
        }

        .footer-col h5 {
            font-size: 0.9rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.05em;
            color: var(--text-white);
            margin-bottom: 1rem;
        }

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

        .footer-col ul li {
            margin-bottom: 0.6rem;
        }

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

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

        .footer-bottom {
            display: flex;
            flex-direction: column;
            gap: 1rem;
            padding-top: 1.5rem;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        .license-info {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
        }

        .badge-18 {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: var(--danger);
            color: white;
            font-weight: 800;
            font-size: 0.8rem;
            padding: 4px 8px;
            border-radius: 4px;
        }

        /* FAB */
        .fab-floating {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: 999;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: rgba(0, 0, 0, 0.6);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            border: 2px solid transparent;
            border-image: linear-gradient(135deg, var(--accent-cyan), var(--accent-lime)) 1;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-cyan);
            font-size: 1.3rem;
            cursor: pointer;
            opacity: 0.6;
            transition: all var(--transition-smooth);
            box-shadow: 0 0 15px rgba(0, 240, 255, 0.5);
        }

        .fab-floating:hover {
            opacity: 1;
            transform: scale(1.1);
            box-shadow: 0 0 30px rgba(0, 240, 255, 0.8);
            color: var(--accent-lime);
        }

        .fab-notification {
            position: absolute;
            top: -2px;
            right: -2px;
            width: 14px;
            height: 14px;
            background: var(--danger);
            border-radius: 50%;
            border: 2px solid var(--bg-deep);
            animation: blink 1.5s ease-in-out infinite;
        }

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

        /* Responsive */
        @media (min-width: 768px) {
            :root {
                --nav-height: 76px;
            }

            body {
                padding-top: var(--nav-height);
            }

            .nav-container {
                height: var(--nav-height);
                padding: 0 24px;
            }

            .nav-links {
                display: flex;
            }

            .nav-toggle {
                display: none;
            }

            .mobile-menu {
                display: none !important;
            }

            .article-hero h1 {
                font-size: 2.8rem;
            }

            .footer-container {
                grid-template-columns: 2fr 1fr 1fr;
                gap: 3rem;
            }

            .footer-bottom {
                flex-direction: row;
                justify-content: space-between;
                align-items: center;
            }

            .fab-floating {
                left: 24px;
                bottom: 96px;
                width: 60px;
                height: 60px;
            }
        }

        @media (min-width: 1024px) {
            .nav-logo {
                font-size: 1.2rem;
            }

            .article-hero h1 {
                font-size: 3rem;
            }

            .article-body {
                font-size: 1.1rem;
            }
        }

        @media (max-width: 520px) {
            .nav-auth .btn-login,
            .nav-auth .btn-signup {
                padding: 6px 10px;
                font-size: 0.75rem;
                white-space: nowrap;
            }

            .nav-logo {
                font-size: 0.95rem;
                gap: 6px;
            }

            .logo-icon {
                width: 30px;
                height: 30px;
                font-size: 1rem;
            }

            .article-hero {
                padding: 2rem 0 1rem;
            }

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

            .article-body {
                font-size: 0.98rem;
            }

            .container {
                padding: 0 16px;
            }

            .download-cta-card {
                padding: 1.5rem;
            }

            .btn-download-large {
                padding: 12px 24px;
                font-size: 1rem;
                width: 100%;
                justify-content: center;
            }

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

            .share-buttons {
                flex-wrap: wrap;
            }

            .share-label {
                width: 100%;
            }

            .share-btn {
                flex: 1;
                justify-content: center;
                min-width: 80px;
            }
        }

/* roulang page: category1 */
:root {
            --bg-primary: #0B1A30;
            --bg-deep: #0F0C20;
            --bg-card: rgba(255, 255, 255, 0.04);
            --bg-card-solid: rgba(11, 26, 48, 0.92);
            --glass-border: rgba(255, 255, 255, 0.12);
            --glass-highlight: rgba(255, 255, 255, 0.06);
            --accent-cyan: #00F0FF;
            --accent-lime: #CCFF00;
            --accent-blue: #1E90FF;
            --accent-purple: #8A2BE2;
            --text-white: #FFFFFF;
            --text-silver: #A6ACAF;
            --text-muted: #7A8296;
            --danger: #FF3B5C;
            --success: #00E676;
            --warning: #FFB300;
            --radius-sm: 8px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --radius-xl: 32px;
            --shadow-glass: 0 8px 32px rgba(0, 0, 0, 0.35);
            --shadow-glow-cyan: 0 0 20px rgba(0, 240, 255, 0.3);
            --shadow-glow-lime: 0 0 20px rgba(204, 255, 0, 0.25);
            --shadow-elevated: 0 20px 60px rgba(0, 0, 0, 0.5);
            --font-sans: 'Inter', 'Segoe UI', 'Roboto', -apple-system, BlinkMacSystemFont, sans-serif;
            --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-smooth: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-bounce: 0.5s cubic-bezier(0.68, -0.55, 0.265, 1.55);
            --container-max: 1240px;
            --container-tight: 1100px;
            --spacing-xs: 0.5rem;
            --spacing-sm: 1rem;
            --spacing-md: 2rem;
            --spacing-lg: 4rem;
            --spacing-xl: 6rem;
            --spacing-xxl: 8rem;
            --nav-height: 76px;
            --nav-height-mobile: 64px;
        }
        @media (max-width: 768px) {
            :root {
                --nav-height: var(--nav-height-mobile);
                --spacing-lg: 2.5rem;
                --spacing-xl: 4rem;
                --spacing-xxl: 5rem;
            }
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            font-size: 16px;
        }

        body {
            font-family: var(--font-sans);
            background: var(--bg-deep);
            color: var(--text-white);
            line-height: 1.65;
            overflow-x: hidden;
            background-image:
                radial-gradient(ellipse at 20% 10%, rgba(0, 240, 255, 0.06) 0%, transparent 50%),
                radial-gradient(ellipse at 80% 30%, rgba(204, 255, 0, 0.04) 0%, transparent 50%),
                radial-gradient(ellipse at 50% 80%, rgba(30, 144, 255, 0.05) 0%, transparent 50%),
                repeating-linear-gradient(0deg, transparent, transparent 49px, rgba(255, 255, 255, 0.015) 50px);
            background-attachment: fixed;
        }

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

img {
    border-radius: var(--radius-md);
}

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

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

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

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

h1,
h2,
h3,
h4,
h5,
h6 {
    line-height: 1.25;
    font-weight: 700;
    letter-spacing: -0.02em;
}

h1 {
    font-size: clamp(2.2rem, 5.5vw, 3.8rem);
    font-weight: 800;
}

h2 {
    font-size: clamp(1.6rem, 3.5vw, 2.4rem);
    font-weight: 800;
}

h3 {
    font-size: 1.3rem;
    font-weight: 700;
}

p {
    color: var(--text-silver);
    font-size: 1rem;
}

ul,
ol {
    list-style: none;
}

.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 24px;
}

.container-tight {
    max-width: var(--container-tight);
}

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

.text-lime {
    color: var(--accent-lime);
}

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

.section-label {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--accent-cyan);
    margin-bottom: 1rem;
    background: rgba(0, 240, 255, 0.08);
    padding: 6px 14px;
    border-radius: 100px;
    border: 1px solid rgba(0, 240, 255, 0.2);
}

/* ---------- Navigation ---------- */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(15, 12, 32, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    transition: background var(--transition-smooth), box-shadow var(--transition-smooth);
}

.site-header.scrolled {
    background: rgba(15, 12, 32, 0.97);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.4);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: var(--nav-height);
    padding: 0 24px;
    max-width: var(--container-max);
    margin: 0 auto;
    gap: 1rem;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.05rem;
    font-weight: 800;
    color: var(--text-white);
    white-space: nowrap;
    letter-spacing: -0.01em;
}

.nav-logo .logo-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    border-radius: 12px;
    background: linear-gradient(135deg, rgba(0, 240, 255, 0.2), rgba(204, 255, 0, 0.15));
    border: 1px solid rgba(0, 240, 255, 0.35);
    color: var(--accent-cyan);
    font-size: 1.2rem;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 1.75rem;
    list-style: none;
}

.nav-links a {
    color: var(--text-silver);
    font-size: 0.95rem;
    font-weight: 600;
    position: relative;
    padding: 0.5rem 0;
    transition: color var(--transition-fast);
}

.nav-links a::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: 0;
    width: 0;
    height: 2px;
    background: var(--accent-cyan);
    box-shadow: 0 0 10px var(--accent-cyan);
    transition: width var(--transition-smooth);
}

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

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

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

.btn-login,
.btn-signup {
    font-size: 0.9rem;
    font-weight: 700;
    white-space: nowrap;
    padding: 10px 18px;
    border-radius: 100px;
    transition: all var(--transition-fast);
}

.btn-login {
    background: transparent;
    color: var(--text-white);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.btn-login:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.4);
}

.btn-signup {
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-lime));
    color: #0B1A30;
    box-shadow: 0 0 18px rgba(0, 240, 255, 0.4);
}

.btn-signup:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 28px rgba(0, 240, 255, 0.6);
}

.nav-toggle {
    display: none;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 10px;
    width: 42px;
    height: 42px;
    color: var(--text-white);
    font-size: 1.2rem;
}

/* ---------- Buttons ---------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    font-weight: 700;
    border-radius: 100px;
    padding: 14px 28px;
    font-size: 1rem;
    transition: all var(--transition-bounce);
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-lime));
    color: #0B1A30;
    box-shadow: 0 0 24px rgba(0, 240, 255, 0.35);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 0 40px rgba(0, 240, 255, 0.6);
}

.btn-outline {
    background: rgba(255, 255, 255, 0.04);
    color: var(--text-white);
    border: 1px solid rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
}

.btn-outline:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(0, 240, 255, 0.5);
    color: var(--accent-cyan);
    transform: translateY(-3px);
}

/* ---------- Hero ---------- */
.hero {
    padding: calc(var(--nav-height) + 3rem) 0 4rem;
    position: relative;
    overflow: hidden;
    background:
        linear-gradient(135deg, rgba(11, 26, 48, 0.95), rgba(15, 12, 32, 0.9)),
        url('/assets/images/backpic/back-2.jpg') center/cover no-repeat;
    background-blend-mode: overlay;
}

.hero::before {
    content: "";
    position: absolute;
    top: -50%;
    right: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(0, 240, 255, 0.12) 0%, transparent 70%);
    pointer-events: none;
}

.hero-container {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 3rem;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-content .section-label {
    margin-bottom: 1.25rem;
}

.hero-content h1 {
    margin-bottom: 1.25rem;
    text-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
}

.hero-subtitle {
    font-size: 1.15rem;
    color: var(--text-silver);
    max-width: 560px;
    margin-bottom: 2rem;
}

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

.hero-panel {
    background: var(--bg-card);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    box-shadow: var(--shadow-glass);
}

.hero-panel h3 {
    font-size: 1.1rem;
    margin-bottom: 1.25rem;
    color: var(--text-white);
}

.rank-list {
    display: flex;
    flex-direction: column;
    gap: 0.9rem;
}

.rank-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 14px;
    background: rgba(255, 255, 255, 0.03);
    border-radius: var(--radius-sm);
    border: 1px solid rgba(255, 255, 255, 0.06);
}

.rank-item .rank-icon {
    width: 34px;
    height: 34px;
    border-radius: 10px;
    flex-shrink: 0;
    background: rgba(0, 240, 255, 0.1);
    color: var(--accent-cyan);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
}

.rank-item .rank-info {
    flex: 1;
}

.rank-item .rank-name {
    font-weight: 700;
    color: var(--text-white);
    font-size: 0.95rem;
}

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

.rank-item .rank-value {
    font-weight: 800;
    color: var(--accent-lime);
    font-size: 0.9rem;
}

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

.section-head {
    max-width: 700px;
    margin-bottom: var(--spacing-md);
}

.section-head h2 {
    margin-bottom: 0.75rem;
}

.section-head p {
    font-size: 1.05rem;
}

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

.feature-card {
    background: var(--bg-card);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    padding: 1.75rem 1.5rem;
    transition: all var(--transition-smooth);
}

.feature-card:hover {
    transform: translateY(-6px);
    border-color: rgba(0, 240, 255, 0.4);
    box-shadow: var(--shadow-glow-cyan);
}

.feature-icon {
    width: 52px;
    height: 52px;
    border-radius: 14px;
    background: linear-gradient(135deg, rgba(0, 240, 255, 0.15), rgba(204, 255, 0, 0.1));
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-cyan);
    font-size: 1.4rem;
    margin-bottom: 1.25rem;
}

.feature-card h3 {
    font-size: 1.1rem;
    margin-bottom: 0.75rem;
}

.feature-card p {
    font-size: 0.9rem;
    color: var(--text-silver);
}

/* ---------- Steps ---------- */
.steps {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    counter-reset: step;
}

.step-item {
    background: var(--bg-card);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    padding: 2rem 1.5rem;
    position: relative;
    counter-increment: step;
    transition: all var(--transition-smooth);
}

.step-item:hover {
    border-color: rgba(0, 240, 255, 0.4);
    box-shadow: var(--shadow-glass);
}

.step-number {
    position: absolute;
    top: 0;
    left: 1.5rem;
    font-size: 3rem;
    font-weight: 800;
    color: rgba(0, 240, 255, 0.15);
    line-height: 1;
}

.step-item h3 {
    margin-top: 1rem;
    margin-bottom: 0.75rem;
    font-size: 1.15rem;
    position: relative;
    z-index: 1;
}

.step-item p {
    font-size: 0.9rem;
    position: relative;
    z-index: 1;
}

/* ---------- Games Grid ---------- */
.games-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.25rem;
}

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

.game-card:hover {
    transform: translateY(-8px);
    border-color: rgba(0, 240, 255, 0.5);
    box-shadow: var(--shadow-glow-cyan);
}

.game-thumb {
    position: relative;
    aspect-ratio: 16 / 9;
    overflow: hidden;
}

.game-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 0;
    transition: transform var(--transition-smooth);
}

.game-card:hover .game-thumb img {
    transform: scale(1.08);
}

.game-tag {
    position: absolute;
    top: 12px;
    right: 12px;
    padding: 4px 12px;
    border-radius: 100px;
    font-size: 0.7rem;
    font-weight: 800;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(6px);
    color: var(--accent-lime);
    border: 1px solid rgba(204, 255, 0, 0.4);
}

.game-tag.hot {
    background: rgba(255, 59, 92, 0.8);
    color: #fff;
    border-color: rgba(255, 59, 92, 0.8);
}

.game-body {
    padding: 1.25rem;
}

.game-body h3 {
    font-size: 1.05rem;
    margin-bottom: 0.4rem;
}

.game-body p {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 0.75rem;
}

.game-meta {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 0.75rem;
    color: var(--text-muted);
}

.game-meta i {
    color: var(--accent-cyan);
}

/* ---------- Stats ---------- */
.stats-row {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
    margin-top: 2.5rem;
}

.stat-item {
    background: var(--bg-card);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    padding: 1.5rem;
    text-align: left;
}

.stat-number {
    font-size: 2rem;
    font-weight: 800;
    color: var(--accent-cyan);
    display: block;
    margin-bottom: 0.25rem;
}

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

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

.faq-item {
    background: var(--bg-card);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    margin-bottom: 0.9rem;
    overflow: hidden;
    transition: all var(--transition-fast);
}

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

.faq-question {
    width: 100%;
    text-align: left;
    padding: 1.25rem 1.5rem;
    background: none;
    color: var(--text-white);
    font-weight: 700;
    font-size: 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
}

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

.faq-answer {
    display: none;
    padding: 0 1.5rem 1.25rem;
    color: var(--text-silver);
    font-size: 0.95rem;
}

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

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

/* ---------- CTA ---------- */
.cta-box {
    background: linear-gradient(135deg, rgba(0, 240, 255, 0.12), rgba(204, 255, 0, 0.08));
    border: 1px solid rgba(0, 240, 255, 0.25);
    border-radius: var(--radius-lg);
    padding: 3rem 2rem;
    text-align: center;
    box-shadow: var(--shadow-glass);
}

.cta-box h2 {
    margin-bottom: 1rem;
}

.cta-box p {
    max-width: 600px;
    margin: 0 auto 2rem;
}

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

/* ---------- Footer ---------- */
.site-footer {
    background: rgba(15, 12, 32, 0.98);
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding: var(--spacing-lg) 0 0;
    margin-top: var(--spacing-lg);
}

.footer-container {
    display: grid;
    grid-template-columns: 1.5fr 0.8fr 0.8fr;
    gap: 2.5rem;
    padding-bottom: var(--spacing-md);
}

.footer-brand .nav-logo {
    font-size: 1.1rem;
    margin-bottom: 1rem;
}

.footer-brand p {
    font-size: 0.9rem;
    color: var(--text-muted);
    max-width: 400px;
    margin-bottom: 1.5rem;
}

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

.footer-social a {
    width: 40px;
    height: 40px;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--glass-border);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-silver);
    transition: all var(--transition-fast);
}

.footer-social a:hover {
    color: var(--accent-cyan);
    border-color: rgba(0, 240, 255, 0.4);
    transform: translateY(-3px);
}

.footer-col h5 {
    font-size: 1rem;
    margin-bottom: 1.25rem;
    color: var(--text-white);
}

.footer-col ul {
    display: flex;
    flex-direction: column;
    gap: 0.7rem;
}

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

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

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    padding: 1.5rem 0;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    font-size: 0.85rem;
    color: var(--text-muted);
}

.license-info {
    display: flex;
    align-items: center;
    gap: 12px;
}

.badge-18 {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border: 2px solid var(--danger);
    color: var(--danger);
    font-weight: 800;
    font-size: 0.8rem;
}

/* ---------- Floating Action Button ---------- */
.fab {
    position: fixed;
    left: 1rem;
    bottom: 5rem;
    z-index: 999;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 56px;
    height: 56px;
    border-radius: 20px;
    background: rgba(15, 12, 32, 0.7);
    backdrop-filter: blur(12px);
    border: 2px solid transparent;
    background-clip: padding-box;
    box-shadow: 0 0 20px rgba(0, 240, 255, 0.3);
    transition: all var(--transition-bounce);
    position: relative;
}

.fab::before {
    content: "";
    position: absolute;
    inset: -2px;
    border-radius: 22px;
    background: linear-gradient(135deg, #CCFF00, #00F0FF);
    z-index: -1;
    opacity: 0.6;
}

.fab:hover {
    transform: scale(1.1);
    opacity: 1;
    box-shadow: 0 0 32px rgba(0, 240, 255, 0.6);
}

.fab:hover::before {
    opacity: 1;
}

.fab i {
    color: var(--accent-cyan);
    font-size: 1.6rem;
    z-index: 1;
}

.fab .notification-dot {
    position: absolute;
    top: -4px;
    right: -4px;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: var(--danger);
    border: 2px solid #0F0C20;
    animation: blink 1.2s infinite;
}

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

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
    .hero-container {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .games-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .stats-row {
        grid-template-columns: repeat(2, 1fr);
    }
    .footer-container {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .nav-links, .nav-auth {
        display: none;
    }
    .nav-toggle {
        display: flex;
        align-items: center;
        justify-content: center;
    }
    .mobile-menu {
        display: none;
        position: fixed;
        top: var(--nav-height);
        left: 0;
        right: 0;
        background: rgba(15, 12, 32, 0.98);
        backdrop-filter: blur(20px);
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        padding: 1.5rem;
        z-index: 999;
    }
    .mobile-menu.open {
        display: block;
    }
    .mobile-menu ul {
        display: flex;
        flex-direction: column;
        gap: 1rem;
    }
    .mobile-menu a {
        color: var(--text-silver);
        font-size: 1.1rem;
        font-weight: 600;
    }
    .mobile-menu a.active, .mobile-menu a:hover {
        color: var(--accent-cyan);
    }
    .mobile-auth {
        display: flex;
        flex-direction: column;
        gap: 0.75rem;
        margin-top: 1.5rem;
    }
    .mobile-auth button {
        width: 100%;
    }
    .btn-login, .btn-signup {
        width: 100%;
        justify-content: center;
    }
    .hero {
        padding-top: calc(var(--nav-height) + 2rem);
        padding-bottom: 2.5rem;
    }
    .hero-content h1 {
        font-size: 2rem;
    }
    .hero-actions .btn {
        width: 100%;
    }
    .hero-panel {
        padding: 1rem;
    }
    .section {
        padding: 2rem 0;
    }
    .features-grid {
        grid-template-columns: 1fr;
    }
    .steps {
        grid-template-columns: 1fr;
    }
    .games-grid {
        grid-template-columns: 1fr;
    }
    .stats-row {
        grid-template-columns: 1fr 1fr;
    }
    .cta-box {
        padding: 2rem 1.25rem;
    }
    .footer-container {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    .footer-bottom {
        flex-direction: column;
        align-items: flex-start;
    }
    .fab {
        bottom: 4.5rem;
        left: 0.75rem;
        width: 48px;
        height: 48px;
        border-radius: 16px;
    }
    .fab i {
        font-size: 1.3rem;
    }
}

@media (max-width: 520px) {
    .nav-logo span:last-child {
        display: none;
    }
    .stats-row {
        grid-template-columns: 1fr;
        gap: 0.75rem;
    }
}

/* roulang page: category2 */
:root {
            --bg-primary: #0B1A30;
            --bg-deep: #0F0C20;
            --bg-card: rgba(255, 255, 255, 0.04);
            --bg-card-solid: rgba(11, 26, 48, 0.92);
            --glass-border: rgba(255, 255, 255, 0.12);
            --glass-highlight: rgba(255, 255, 255, 0.06);
            --accent-cyan: #00F0FF;
            --accent-lime: #CCFF00;
            --accent-blue: #1E90FF;
            --accent-purple: #8A2BE2;
            --text-white: #FFFFFF;
            --text-silver: #A6ACAF;
            --text-muted: #7A8296;
            --danger: #FF3B5C;
            --success: #00E676;
            --warning: #FFB300;
            --radius-sm: 8px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --radius-xl: 32px;
            --shadow-glass: 0 8px 32px rgba(0, 0, 0, 0.35);
            --shadow-glow-cyan: 0 0 20px rgba(0, 240, 255, 0.3);
            --shadow-glow-lime: 0 0 20px rgba(204, 255, 0, 0.25);
            --shadow-elevated: 0 20px 60px rgba(0, 0, 0, 0.5);
            --font-sans: 'Inter', 'Segoe UI', 'Roboto', -apple-system, BlinkMacSystemFont, sans-serif;
            --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-smooth: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-bounce: 0.5s cubic-bezier(0.68, -0.55, 0.265, 1.55);
            --container-max: 1240px;
            --container-tight: 1100px;
            --spacing-xs: 0.5rem;
            --spacing-sm: 1rem;
            --spacing-md: 2rem;
            --spacing-lg: 4rem;
            --spacing-xl: 6rem;
            --spacing-xxl: 8rem;
            --nav-height: 76px;
            --nav-height-mobile: 64px;
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            font-size: 16px;
        }
        body {
            font-family: var(--font-sans);
            background: var(--bg-deep);
            color: var(--text-white);
            line-height: 1.65;
            overflow-x: hidden;
            background-image: 
                radial-gradient(ellipse at 20% 10%, rgba(0, 240, 255, 0.06) 0%, transparent 50%),
                radial-gradient(ellipse at 80% 30%, rgba(204, 255, 0, 0.04) 0%, transparent 50%),
                radial-gradient(ellipse at 50% 80%, rgba(30, 144, 255, 0.05) 0%, transparent 50%),
                repeating-linear-gradient(0deg, transparent, transparent 49px, rgba(255,255,255,0.015) 50px);
            background-attachment: fixed;
            margin: 0;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-md);
        }
        a {
            color: var(--accent-cyan);
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        a:hover {
            color: var(--accent-lime);
        }
        button, .btn {
            font-family: var(--font-sans);
            cursor: pointer;
            border: none;
            outline: none;
            transition: all var(--transition-fast);
        }
        button:focus-visible, a:focus-visible, .btn:focus-visible {
            outline: 2px solid var(--accent-cyan);
            outline-offset: 3px;
        }
        .container {
            width: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }
        .container-tight {
            max-width: var(--container-tight);
        }
        .text-accent {
            color: var(--accent-cyan);
        }
        .text-lime {
            color: var(--accent-lime);
        }
        .text-muted {
            color: var(--text-muted);
        }
        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 0.8rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.08em;
            color: var(--accent-cyan);
            margin-bottom: 1rem;
            background: rgba(0, 240, 255, 0.08);
            padding: 6px 14px;
            border-radius: 100px;
            border: 1px solid rgba(0, 240, 255, 0.2);
        }
        /* Navigation */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(15, 12, 32, 0.85);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            transition: background var(--transition-smooth);
        }
        .site-header.scrolled {
            background: rgba(15, 12, 32, 0.97);
            box-shadow: 0 4px 30px rgba(0, 0, 0, 0.4);
        }
        .nav-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--nav-height);
            padding: 0 24px;
            max-width: var(--container-max);
            margin: 0 auto;
        }
        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1rem;
            font-weight: 800;
            color: var(--text-white);
            letter-spacing: -0.02em;
        }
        .nav-logo .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 42px;
            height: 42px;
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-blue));
            border-radius: 12px;
            box-shadow: 0 0 18px rgba(0, 240, 255, 0.4);
            color: #0B1A30;
            font-size: 1.3rem;
        }
        .nav-logo span:last-child {
            white-space: nowrap;
        }
        .nav-links {
            display: flex;
            align-items: center;
            list-style: none;
            gap: 28px;
            margin: 0;
            padding: 0;
        }
        .nav-links li a {
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-silver);
            position: relative;
            padding: 8px 0;
            display: inline-block;
        }
        .nav-links li a.active {
            color: var(--accent-cyan);
        }
        .nav-links li a.active::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 100%;
            height: 2px;
            background: var(--accent-cyan);
            border-radius: 2px;
            box-shadow: 0 0 8px rgba(0, 240, 255, 0.6);
        }
        .nav-links li a:hover {
            color: var(--text-white);
        }
        .nav-auth {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .btn-login {
            background: transparent;
            color: var(--text-silver);
            font-weight: 600;
            font-size: 0.9rem;
            padding: 8px 16px;
            border-radius: 100px;
            border: 1px solid transparent;
        }
        .btn-login:hover {
            color: var(--text-white);
            background: rgba(255,255,255,0.06);
            border-color: var(--glass-border);
        }
        .btn-signup {
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-blue));
            color: #0B1A30;
            font-weight: 700;
            font-size: 0.9rem;
            padding: 10px 22px;
            border-radius: 100px;
            box-shadow: 0 4px 18px rgba(0, 240, 255, 0.35);
        }
        .btn-signup:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 28px rgba(0, 240, 255, 0.5);
            color: #0B1A30;
        }
        .nav-toggle {
            display: none;
            background: transparent;
            color: var(--text-white);
            font-size: 1.5rem;
            padding: 8px;
            border-radius: 8px;
        }
        @media (max-width: 992px) {
            .nav-links {
                gap: 14px;
            }
            .nav-links li a {
                font-size: 0.85rem;
            }
        }
        @media (max-width: 768px) {
            :root {
                --nav-height: var(--nav-height-mobile);
                --spacing-lg: 2.5rem;
                --spacing-xl: 4rem;
                --spacing-xxl: 5rem;
            }
            .nav-container {
                padding: 0 16px;
            }
            .nav-logo span:last-child {
                font-size: 0.85rem;
            }
            .nav-links {
                position: absolute;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background: rgba(15, 12, 32, 0.98);
                flex-direction: column;
                align-items: flex-start;
                gap: 0;
                padding: 16px 24px;
                border-bottom: 1px solid var(--glass-border);
                display: none;
            }
            .nav-links.open {
                display: flex;
            }
            .nav-links li {
                width: 100%;
            }
            .nav-links li a {
                display: block;
                padding: 14px 0;
                font-size: 1rem;
            }
            .nav-auth {
                margin-left: auto;
            }
            .nav-toggle {
                display: inline-flex;
                align-items: center;
                justify-content: center;
                margin-left: 12px;
            }
            .btn-login, .btn-signup {
                display: inline-flex;
                align-items: center;
                justify-content: center;
                padding: 6px 12px;
                font-size: 0.8rem;
            }
        }
        @media (max-width: 520px) {
            .nav-logo span:last-child {
                max-width: 140px;
                overflow: hidden;
                text-overflow: ellipsis;
            }
            .btn-login {
                display: none;
            }
            .btn-signup {
                padding: 6px 14px;
                font-size: 0.8rem;
            }
        }
        /* Hero */
        .page-hero {
            padding-top: calc(var(--nav-height) + 4rem);
            padding-bottom: 4rem;
            position: relative;
        }
        .page-hero .breadcrumb {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-bottom: 1rem;
        }
        .page-hero .breadcrumb a {
            color: var(--text-muted);
        }
        .page-hero .breadcrumb a:hover {
            color: var(--accent-cyan);
        }
        .page-hero .breadcrumb .separator {
            margin: 0 8px;
            color: var(--text-muted);
        }
        .page-hero h1 {
            font-size: 3rem;
            font-weight: 900;
            letter-spacing: -0.03em;
            line-height: 1.15;
            margin-bottom: 1.5rem;
            background: linear-gradient(135deg, #FFFFFF 0%, #CCFF00 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .page-hero .hero-sub {
            font-size: 1.2rem;
            color: var(--text-silver);
            max-width: 800px;
            line-height: 1.7;
            margin-bottom: 2rem;
        }
        .hero-actions {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            align-items: center;
        }
        .btn-primary {
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-blue));
            color: #0B1A30;
            font-weight: 800;
            font-size: 1rem;
            padding: 14px 32px;
            border-radius: 100px;
            display: inline-flex;
            align-items: center;
            gap: 10px;
            box-shadow: 0 8px 30px rgba(0, 240, 255, 0.4);
        }
        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 14px 40px rgba(0, 240, 255, 0.55);
            color: #0B1A30;
        }
        .btn-secondary {
            background: rgba(255,255,255,0.06);
            color: var(--text-white);
            font-weight: 700;
            font-size: 1rem;
            padding: 14px 28px;
            border-radius: 100px;
            border: 1px solid var(--glass-border);
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }
        .btn-secondary:hover {
            background: rgba(255,255,255,0.12);
            border-color: rgba(255,255,255,0.25);
            color: var(--text-white);
        }
        /* Sections */
        .section {
            padding: var(--spacing-lg) 0;
        }
        .section-title {
            font-size: 2.2rem;
            font-weight: 800;
            letter-spacing: -0.02em;
            line-height: 1.2;
            margin-bottom: 1rem;
        }
        .section-sub {
            font-size: 1.1rem;
            color: var(--text-silver);
            max-width: 700px;
            line-height: 1.7;
            margin-bottom: 3rem;
        }
        /* Requirement cards */
        .grid-3 {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .glass-card {
            background: var(--bg-card);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-lg);
            padding: 28px;
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            transition: all var(--transition-smooth);
        }
        .glass-card:hover {
            border-color: rgba(0, 240, 255, 0.3);
            box-shadow: var(--shadow-glow-cyan);
            transform: translateY(-4px);
        }
        .glass-card .card-icon {
            width: 52px;
            height: 52px;
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            margin-bottom: 1.2rem;
            background: rgba(0, 240, 255, 0.1);
            color: var(--accent-cyan);
            border: 1px solid rgba(0, 240, 255, 0.25);
        }
        .glass-card h3 {
            font-size: 1.3rem;
            font-weight: 700;
            margin-bottom: 0.75rem;
            color: var(--text-white);
        }
        .glass-card p {
            color: var(--text-silver);
            font-size: 0.95rem;
            line-height: 1.7;
            margin: 0;
        }
        /* Steps */
        .steps-wrapper {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: start;
        }
        .steps-list {
            display: flex;
            flex-direction: column;
            gap: 24px;
        }
        .step-item {
            display: flex;
            gap: 20px;
            align-items: flex-start;
            background: var(--bg-card);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-lg);
            padding: 24px;
            transition: all var(--transition-smooth);
        }
        .step-item:hover {
            border-color: rgba(0, 240, 255, 0.3);
            box-shadow: var(--shadow-glass);
            transform: translateX(6px);
        }
        .step-number {
            width: 48px;
            height: 48px;
            min-width: 48px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-blue));
            color: #0B1A30;
            font-weight: 900;
            font-size: 1.2rem;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 0 20px rgba(0, 240, 255, 0.35);
        }
        .step-content h4 {
            font-size: 1.2rem;
            font-weight: 700;
            margin: 0 0 8px;
            color: var(--text-white);
        }
        .step-content p {
            color: var(--text-silver);
            font-size: 0.95rem;
            line-height: 1.7;
            margin: 0;
        }
        .step-visual {
            background: rgba(255,255,255,0.03);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-xl);
            padding: 32px;
            position: relative;
            overflow: hidden;
        }
        .step-visual img {
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-elevated);
        }
        .step-visual .badge-float {
            position: absolute;
            top: 24px;
            right: 24px;
            background: rgba(0, 240, 255, 0.15);
            border: 1px solid rgba(0, 240, 255, 0.3);
            color: var(--accent-cyan);
            padding: 6px 14px;
            border-radius: 100px;
            font-size: 0.8rem;
            font-weight: 700;
        }
        /* Tips */
        .tips-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
        }
        .tip-card {
            background: var(--bg-card);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-lg);
            padding: 28px;
        }
        .tip-card h3 {
            font-size: 1.3rem;
            font-weight: 700;
            margin-bottom: 1rem;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .tip-card ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .tip-card ul li {
            padding: 10px 0;
            color: var(--text-silver);
            font-size: 0.95rem;
            display: flex;
            align-items: flex-start;
            gap: 12px;
            border-bottom: 1px solid rgba(255,255,255,0.06);
        }
        .tip-card ul li:last-child {
            border-bottom: none;
        }
        .tip-card ul li i {
            color: var(--success);
            margin-top: 4px;
        }
        .tip-card.danger ul li i {
            color: var(--danger);
        }
        /* FAQ */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-md);
            margin-bottom: 16px;
            overflow: hidden;
        }
        .faq-question {
            width: 100%;
            text-align: left;
            padding: 20px 24px;
            background: transparent;
            color: var(--text-white);
            font-size: 1.1rem;
            font-weight: 600;
            display: flex;
            align-items: center;
            justify-content: space-between;
            cursor: pointer;
        }
        .faq-question i {
            color: var(--accent-cyan);
            transition: transform var(--transition-fast);
        }
        .faq-item.open .faq-question i {
            transform: rotate(180deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-smooth);
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
        }
        .faq-answer p {
            padding: 0 24px 20px;
            margin: 0;
            color: var(--text-silver);
            line-height: 1.7;
        }
        /* CTA */
        .cta-section {
            padding: var(--spacing-xl) 0;
            text-align: center;
        }
        .cta-box {
            background: linear-gradient(135deg, rgba(0, 240, 255, 0.08), rgba(30, 144, 255, 0.08));
            border: 1px solid rgba(0, 240, 255, 0.2);
            border-radius: var(--radius-xl);
            padding: 64px 40px;
            box-shadow: var(--shadow-elevated);
        }
        .cta-box h2 {
            font-size: 2.5rem;
            font-weight: 900;
            letter-spacing: -0.02em;
            margin-bottom: 1rem;
        }
        .cta-box p {
            font-size: 1.1rem;
            color: var(--text-silver);
            max-width: 600px;
            margin: 0 auto 2.5rem;
            line-height: 1.7;
        }
        /* Footer */
        .site-footer {
            background: rgba(15, 12, 32, 0.95);
            border-top: 1px solid var(--glass-border);
            padding: 4rem 0 2rem;
            margin-top: 2rem;
        }
        .footer-container {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 3rem;
        }
        .footer-brand .nav-logo {
            margin-bottom: 1rem;
        }
        .footer-brand p {
            color: var(--text-silver);
            font-size: 0.95rem;
            line-height: 1.7;
            max-width: 400px;
        }
        .footer-social {
            display: flex;
            gap: 12px;
            margin-top: 1.5rem;
        }
        .footer-social a {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(255,255,255,0.05);
            border: 1px solid var(--glass-border);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-silver);
            transition: all var(--transition-fast);
        }
        .footer-social a:hover {
            background: rgba(0, 240, 255, 0.1);
            border-color: rgba(0, 240, 255, 0.4);
            color: var(--accent-cyan);
            transform: translateY(-3px);
        }
        .footer-col h5 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 1.2rem;
            color: var(--text-white);
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul li a {
            color: var(--text-silver);
            font-size: 0.9rem;
            transition: color var(--transition-fast);
        }
        .footer-col ul li a:hover {
            color: var(--accent-cyan);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.06);
            padding-top: 2rem;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
        }
        .footer-bottom span {
            color: var(--text-muted);
            font-size: 0.85rem;
        }
        .license-info {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .badge-18 {
            width: 36px;
            height: 36px;
            border-radius: 8px;
            background: var(--danger);
            color: #fff;
            font-weight: 900;
            font-size: 0.9rem;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .license-info span:last-child {
            font-size: 0.85rem;
            color: var(--text-muted);
        }
        @media (max-width: 1024px) {
            .page-hero h1 {
                font-size: 2.5rem;
            }
            .grid-3 {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 768px) {
            .page-hero h1 {
                font-size: 2rem;
            }
            .grid-3,
            .steps-wrapper,
            .tips-grid {
                grid-template-columns: 1fr;
            }
            .footer-container {
                grid-template-columns: 1fr;
                gap: 24px;
            }
        }
        @media (max-width: 520px) {
            .page-hero h1 {
                font-size: 1.8rem;
            }
            .hero-actions {
                flex-direction: column;
                align-items: stretch;
            }
            .btn-primary, .btn-secondary {
                justify-content: center;
            }
            .btn-signup {
                display: inline-flex;
            }
        }