:root {
            --color-brand-primary: #007BFF;
            --color-brand-hover: #3395FF;
            --color-brand-accent: #00F5FF;
            --color-bg-main: #050B18;
            --color-bg-surface: #0D1629;
            --color-bg-elevated: #16223D;
            --color-text-primary: #E6F1FF;
            --color-text-secondary: #B0C4DE;
            --color-text-muted: #788CA5;
            --color-btn-bg: #00F5FF;
            --color-btn-text: #050B18;
            --color-border-default: #1C2B4D;
            --color-border-brand: #00F5FF;
            --font-headings: 'Rajdhani', sans-serif;
            --font-body: 'Be Vietnam Pro', sans-serif;
            --radius-md: 8px;
            --radius-lg: 12px;
            --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.5);
            --glow-cyan: 0 0 15px rgba(0, 245, 255, 0.6);
        }
        html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
        body {
            margin: 0;
            font-family: var(--font-body);
            font-size: clamp(15px, 3.9vw, 16px);
            line-height: 1.65;
            background-color: var(--color-bg-main);
            color: var(--color-text-primary);
            padding-inline: 14px;
            padding-bottom: calc(72px + env(safe-area-inset-bottom, 0px));
            overflow-x: hidden;
        }
        img { max-width: 100%; height: auto; display: block; }
        a { color: var(--color-brand-accent); text-decoration: none; transition: color 0.2s; }
        a:hover { color: #33D1FF; }
        header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 1rem 0;
            max-width: 1200px;
            margin: 0 auto;
        }
        .header-logo-link { display: flex; align-items: center; gap: 8px; }
        .header-logo-text { font-size: 16px; font-weight: normal; color: var(--color-text-primary); }
        .header-actions { display: flex; gap: 12px; }
        .btn-nav {
            min-height: 44px;
            padding: 8px 16px;
            border-radius: var(--radius-md);
            font-weight: 600;
            font-size: 14px;
            text-align: center;
            cursor: pointer;
        }
        .btn-login { background: var(--color-bg-elevated); color: var(--color-text-primary); border: 1px solid var(--color-border-default); }
        .btn-register { background: var(--color-btn-bg); color: var(--color-btn-text); }
        
        main { max-width: 1200px; margin: 0 auto; }
        
        .hero-section { text-align: center; padding: 2rem 0; }
        .hero-title {
            font-family: var(--font-headings);
            font-size: clamp(1.6rem, 6.5vw, 2.4rem);
            line-height: 1.2;
            margin-bottom: 1.5rem;
            color: var(--color-text-primary);
        }
        .hero-intro { font-size: 1.1rem; color: var(--color-text-secondary); margin-bottom: 2rem; max-width: 800px; margin-inline: auto; }
        .btn-hero-cta {
            display: block;
            width: 100%;
            min-height: 56px;
            background: linear-gradient(180deg, #00F5FF 0%, #00D1E0 100%);
            color: var(--color-bg-main);
            font-weight: 700;
            font-size: 1.25rem;
            border-radius: var(--radius-md);
            text-align: center;
            line-height: 56px;
            box-shadow: var(--glow-cyan);
        }
        .hero-tags { display: flex; justify-content: center; gap: 10px; margin-top: 2rem; flex-wrap: wrap; }
        .hero-tag {
            background: var(--color-bg-surface);
            border: 1px solid var(--color-border-brand);
            padding: 4px 12px;
            border-radius: 9999px;
            font-size: 0.85rem;
            color: var(--color-brand-accent);
        }
        .banner-link { display: block; width: 100%; margin: 2rem 0; }
        .banner-img { width: 100%; aspect-ratio: 2/1; object-fit: cover; border-radius: var(--radius-lg); }
        
        .category-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 12px;
            margin: 2rem 0;
        }
        .category-tile {
            background: var(--color-bg-surface);
            padding: 1.5rem;
            border-radius: var(--radius-lg);
            text-align: center;
            border: 1px solid var(--color-border-default);
            transition: transform 0.2s, border-color 0.2s;
        }
        .category-tile:hover { transform: translateY(-5px); border-color: var(--color-brand-accent); }
        .category-tile i { font-size: 2rem; color: var(--color-brand-accent); margin-bottom: 10px; }
        .category-tile strong { display: block; font-size: 1.1rem; color: var(--color-text-primary); margin-bottom: 8px; }
        .category-tile span { font-size: 0.85rem; color: var(--color-text-muted); }

        .game-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 16px;
            margin: 1.5rem 0;
        }
        .game-card {
            background: var(--color-bg-surface);
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--color-border-default);
            transition: box-shadow 0.3s;
        }
        .game-card:hover { box-shadow: var(--shadow-card); border-color: var(--color-brand-accent); }
        .game-card img { width: 100%; aspect-ratio: 1/1; object-fit: cover; }
        .game-card h3 {
            font-size: 1rem;
            padding: 12px;
            margin: 0;
            text-align: center;
            color: var(--color-text-primary);
            font-family: var(--font-body);
        }

        .facts-container {
            background: var(--color-bg-surface);
            border-radius: var(--radius-lg);
            padding: 1.5rem;
            margin: 2rem 0;
            border: 1px solid var(--color-border-default);
        }
        .facts-notice { font-style: italic; color: var(--color-text-muted); font-size: 0.9rem; margin-bottom: 1rem; }
        .facts-table { width: 100%; border-collapse: collapse; }
        .facts-table tr { border-bottom: 1px solid var(--color-border-default); }
        .facts-table td { padding: 12px 8px; vertical-align: top; }
        .facts-label { color: var(--color-text-secondary); font-weight: 500; width: 40%; }
        .facts-value { color: var(--color-text-primary); }
        .facts-footer { margin-top: 1rem; text-align: center; font-size: 0.9rem; }

        .toc-nav {
            display: flex;
            overflow-x: auto;
            gap: 12px;
            padding: 1rem 0;
            margin: 2rem 0;
            scrollbar-width: none;
            -ms-overflow-style: none;
        }
        .toc-nav::-webkit-scrollbar { display: none; }
        .toc-link {
            background: var(--color-bg-elevated);
            padding: 8px 16px;
            border-radius: var(--radius-pill);
            white-space: nowrap;
            font-size: 0.9rem;
            color: var(--color-text-secondary);
            border: 1px solid var(--color-border-default);
        }
        .toc-link:hover { background: var(--color-brand-primary); color: #fff; }

        .promo-container { display: flex; flex-direction: column; gap: 16px; margin: 2rem 0; }
        .promo-card {
            background: linear-gradient(135deg, var(--color-bg-surface) 0%, var(--color-bg-elevated) 100%);
            padding: 1.5rem;
            border-radius: var(--radius-lg);
            border-left: 4px solid var(--color-brand-accent);
        }
        .promo-card h3 { font-family: var(--font-headings); margin-top: 0; color: var(--color-brand-accent); }
        .promo-card p { color: var(--color-text-secondary); margin-bottom: 1.5rem; }
        .btn-promo {
            display: inline-block;
            padding: 10px 20px;
            background: var(--color-btn-bg);
            color: var(--color-bg-main);
            border-radius: var(--radius-md);
            font-weight: 600;
            font-size: 0.9rem;
        }

        .usp-grid { display: flex; flex-direction: column; gap: 16px; margin: 2rem 0; }
        .usp-item {
            display: flex;
            align-items: flex-start;
            gap: 16px;
            background: var(--color-bg-surface);
            padding: 1.2rem;
            border-radius: var(--radius-md);
        }
        .usp-item i { font-size: 1.5rem; color: var(--color-brand-accent); margin-top: 4px; }
        .usp-content strong { display: block; color: var(--color-text-primary); margin-bottom: 4px; }
        .usp-content span { font-size: 0.9rem; color: var(--color-text-muted); }

        .payment-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 12px;
            margin: 2rem 0;
        }
        .pay-card {
            background: var(--color-bg-surface);
            padding: 1rem;
            border-radius: var(--radius-md);
            text-align: center;
            border: 1px solid var(--color-border-default);
        }
        .pay-card i { font-size: 1.8rem; color: var(--color-brand-accent); margin-bottom: 8px; }
        .pay-card strong { display: block; margin-bottom: 8px; color: var(--color-text-primary); }
        .pay-card p { font-size: 0.8rem; color: var(--color-text-muted); margin: 0; }

        .guide-steps { display: flex; flex-direction: column; gap: 20px; margin: 2rem 0; }
        .step-item {
            display: flex;
            gap: 16px;
            background: var(--color-bg-surface);
            padding: 1.5rem;
            border-radius: var(--radius-lg);
        }
        .step-num {
            min-width: 40px;
            height: 40px;
            background: var(--color-brand-accent);
            color: var(--color-bg-main);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
        }
        .step-content h3 { margin: 0 0 8px 0; font-size: 1.2rem; }
        .step-content a { color: inherit; text-decoration: none; }
        .step-content p { margin: 0; color: var(--color-text-secondary); }

        .download-section {
            background: linear-gradient(rgba(5,11,24,0.9), rgba(5,11,24,0.9)), url('/images/banner.webp');
            background-size: cover;
            padding: 2rem;
            border-radius: var(--radius-lg);
            text-align: center;
            margin: 2rem 0;
            border: 1px solid var(--color-border-brand);
        }
        .btn-download {
            display: inline-block;
            padding: 14px 32px;
            background: var(--color-brand-accent);
            color: var(--color-bg-main);
            font-weight: 700;
            border-radius: var(--radius-md);
            margin-top: 1rem;
        }

        .player-guides { display: flex; flex-direction: column; gap: 16px; margin: 2rem 0; }
        .guide-card {
            background: var(--color-bg-surface);
            padding: 1.5rem;
            border-radius: var(--radius-lg);
            border: 1px solid var(--color-border-default);
        }
        .guide-card h3 { margin: 0 0 4px 0; color: var(--color-brand-accent); }
        .guide-meta { font-size: 0.8rem; color: var(--color-text-muted); margin-bottom: 12px; display: block; }
        .guide-card p { margin: 0; color: var(--color-text-secondary); }

        .announcement-list { display: flex; flex-direction: column; gap: 12px; margin: 2rem 0; }
        .announcement-item {
            display: flex;
            gap: 12px;
            background: var(--color-bg-surface);
            padding: 1rem;
            border-radius: var(--radius-md);
            border-left: 3px solid var(--color-brand-primary);
        }
        .announcement-item i { color: var(--color-brand-accent); margin-top: 4px; }
        .announcement-content h3 { margin: 0 0 8px 0; font-size: 1.1rem; }
        .announcement-content p { margin: 0 0 8px 0; font-size: 0.9rem; color: var(--color-text-secondary); }
        .announcement-date { font-size: 0.8rem; color: var(--color-text-muted); }

        .faq-section { margin: 2rem 0; }
        details { background: var(--color-bg-surface); margin-bottom: 12px; border-radius: var(--radius-md); border: 1px solid var(--color-border-default); }
        summary { padding: 1rem; cursor: pointer; outline: none; list-style: none; }
        summary h3 { margin: 0; font-size: 1.1rem; color: var(--color-text-primary); display: flex; justify-content: space-between; align-items: center; }
        summary h3::after { content: '\f078'; font-family: 'Font Awesome 6 Free'; font-weight: 900; font-size: 0.8rem; }
        .faq-answer { padding: 0 1rem 1rem 1rem; color: var(--color-text-secondary); font-size: 0.95rem; }

        .about-section { background: var(--color-bg-surface); padding: 2rem; border-radius: var(--radius-lg); margin: 2rem 0; }
        .team-card {
            margin-top: 2rem;
            padding: 1.5rem;
            background: var(--color-bg-elevated);
            border-radius: var(--radius-md);
            border: 1px solid var(--color-border-default);
        }

        .security-footer {
            padding: 2rem;
            background: var(--color-bg-elevated);
            border-radius: var(--radius-lg);
            margin: 2rem 0;
            text-align: center;
        }
        .security-links { display: flex; justify-content: center; gap: 20px; margin: 1.5rem 0; flex-wrap: wrap; }
        .security-link { color: var(--color-text-secondary); font-size: 0.9rem; border-bottom: 1px solid var(--color-text-muted); }

        footer {
            background: var(--color-bg-surface);
            padding: 3rem 0 2rem 0;
            margin-top: 4rem;
            border-top: 2px solid var(--color-border-default);
            text-align: center;
        }
        .footer-sitemap {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 10px;
            max-width: 600px;
            margin: 0 auto 2rem;
            text-align: left;
        }
        .footer-sitemap a { font-size: 0.85rem; color: var(--color-text-muted); }
        .footer-contact { margin-bottom: 1.5rem; font-size: 0.9rem; }
        .footer-legal { font-size: 0.8rem; color: var(--color-text-muted); line-height: 1.4; }

        .navigator {
            position: fixed;
            inset-inline: 0;
            bottom: 0;
            height: 72px;
            background: var(--color-bg-surface);
            display: flex;
            justify-content: space-around;
            align-items: center;
            padding-bottom: env(safe-area-inset-bottom);
            border-top: 1px solid var(--color-border-default);
            z-index: 1000;
        }
        .nav-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 4px;
            color: var(--color-text-muted);
            font-size: 0.75rem;
        }
        .nav-item i { font-size: 1.2rem; color: var(--color-brand-accent); }

        h2 {
            font-family: var(--font-headings);
            font-size: clamp(1.3rem, 5.2vw, 1.8rem);
            line-height: 1.25;
            margin-top: 3rem;
            margin-bottom: 1.5rem;
            color: var(--color-text-primary);
            text-align: center;
        }
        .utility-link { color: var(--color-brand-accent); font-weight: 600; text-decoration: underline; }

        @media (min-width: 768px) {
            body { padding-inline: 24px; padding-bottom: 24px; }
            .category-grid { grid-template-columns: repeat(3, 1fr); }
            .game-grid { grid-template-columns: repeat(2, 1fr); }
            .payment-grid { grid-template-columns: repeat(4, 1fr); }
            .navigator { display: none; }
        }
        @media (min-width: 1200px) {
            body { padding-inline: 32px; max-width: 1200px; margin-inline: auto; }
            .category-grid { grid-template-columns: repeat(4, 1fr); }
            .game-grid { grid-template-columns: repeat(4, 1fr); }
            .footer-sitemap { grid-template-columns: repeat(5, 1fr); }
        }
        section { content-visibility: auto; contain-intrinsic-size: 1px 500px; }