:root {
            --primary: #0F172A;
            --primary-hover: #1E293B;
            --secondary: #94A3B8;
            --secondary-hover: #CBD5E1;
            --accent: #00F2FF;
            --bg-main: #070B14;
            --bg-surface: #0E1524;
            --bg-elevated: #171F32;
            --text-primary: #F1F5F9;
            --text-secondary: #94A3B8;
            --text-muted: #64748B;
            --btn-bg: #00F2FF;
            --btn-text: #070B14;
            --btn-hover: #70F8FF;
            --border-default: #1E293B;
            --border-brand: #00F2FF;
            --radius-md: 4px;
            --radius-lg: 8px;
            --shadow-card: 0 4px 6px -1px rgba(0, 0, 0, 0.5);
            --glow: 0 0 15px rgba(0, 242, 255, 0.4);
        }
        html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
        body {
            margin: 0;
            font-family: 'Be Vietnam Pro', sans-serif;
            font-size: clamp(15px, 3.9vw, 16px);
            line-height: 1.65;
            color: var(--text-primary);
            background-color: var(--bg-main);
            padding-inline: 14px;
            padding-bottom: calc(72px + env(safe-area-inset-bottom, 0px));
            overflow-x: hidden;
        }
        h1, h2, h3 { font-family: 'Oswald', sans-serif; color: var(--text-primary); margin: 0; }
        h1 { font-size: clamp(1.6rem, 6.5vw, 2.4rem); line-height: 1.2; margin-bottom: 1.5rem; }
        h2 { font-size: clamp(1.3rem, 5.2vw, 1.8rem); line-height: 1.25; margin-top: 2.5rem; margin-bottom: 1.2rem; border-left: 4px solid var(--accent); padding-left: 12px; }
        h3 { font-size: clamp(1.05rem, 4.2vw, 1.25rem); line-height: 1.3; margin-bottom: 0.75rem; }
        a { color: var(--accent); text-decoration: none; transition: color 0.2s ease; }
        a:hover { color: var(--btn-hover); }
        img { max-width: 100%; height: auto; display: block; }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-height: 44px;
            min-inline-size: 44px;
            padding: 12px 24px;
            border-radius: var(--radius-md);
            font-weight: 600;
            cursor: pointer;
            transition: transform 0.2s, background-color 0.2s;
            text-align: center;
            border: none;
        }
        .btn-primary { background: var(--btn-bg); color: var(--btn-text); }
        .btn-primary:hover { background: var(--btn-hover); transform: translateY(-2px); }
        .btn-full { width: 100%; box-sizing: border-box; }
        
        header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 16px 0;
            border-bottom: 1px solid var(--border-default);
        }
        .header-logo-link { display: flex; align-items: center; gap: 8px; }
        .header-logo-link strong { font-size: 16px; font-weight: normal; color: var(--text-primary); }
        .header-actions { display: flex; gap: 10px; }
        
        .hero-section { padding: 40px 0; text-align: center; }
        .hero-intro { max-width: 800px; margin: 0 auto 24px; }
        .hero-tags { display: flex; flex-wrap: wrap; justify-content: center; gap: 8px; margin-top: 20px; }
        .hero-tag { background: var(--bg-elevated); color: var(--text-secondary); padding: 4px 12px; border-radius: 9999px; font-size: 0.85rem; border: 1px solid var(--border-default); }

        .banner-wrapper { margin: 20px 0; border-radius: var(--radius-lg); overflow: hidden; }
        .banner-img { aspect-ratio: 2 / 1; width: 100%; object-fit: cover; }

        .category-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; margin: 24px 0; }
        .cat-tile { 
            background: var(--bg-surface); 
            padding: 20px; 
            border-radius: var(--radius-lg); 
            text-align: center; 
            border: 1px solid var(--border-default);
            transition: border-color 0.3s;
        }
        .cat-tile:hover { border-color: var(--accent); }
        .cat-icon { font-size: 1.5rem; margin-bottom: 10px; color: var(--accent); }
        .cat-name { display: block; font-weight: 600; margin-bottom: 6px; color: var(--text-primary); }
        .cat-desc { font-size: 0.85rem; color: var(--text-secondary); display: block; }

        .game-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
        .game-card { 
            background: var(--bg-surface); 
            border-radius: var(--radius-lg); 
            overflow: hidden; 
            border: 1px solid var(--border-default);
            transition: transform 0.2s;
        }
        .game-card:hover { transform: scale(1.02); }
        .game-thumb { aspect-ratio: 1 / 1; width: 100%; object-fit: cover; }
        .game-info { padding: 12px; text-align: center; }
        .game-info h3 { font-size: 1rem; margin: 0; color: var(--text-primary); }

        .facts-container { background: var(--bg-surface); border-radius: var(--radius-lg); padding: 20px; border: 1px solid var(--border-default); }
        .facts-notice { font-style: italic; color: var(--text-secondary); font-size: 0.9rem; margin-bottom: 15px; display: block; }
        .facts-table { width: 100%; border-collapse: collapse; margin-bottom: 15px; }
        .facts-table td { padding: 10px; border-bottom: 1px solid var(--border-default); font-size: 0.95rem; }
        .facts-label { color: var(--text-secondary); width: 40%; }
        .facts-value { color: var(--text-primary); font-weight: 500; }
        .facts-footer { font-size: 0.85rem; color: var(--text-muted); text-align: center; }

        .toc-nav { 
            display: flex; 
            overflow-x: auto; 
            gap: 10px; 
            padding: 15px 0; 
            margin-bottom: 30px; 
            scrollbar-width: none; 
            -ms-overflow-style: none;
        }
        .toc-nav::-webkit-scrollbar { display: none; }
        .toc-link { 
            background: var(--bg-elevated); 
            padding: 8px 16px; 
            border-radius: var(--radius-md); 
            white-space: nowrap; 
            font-size: 0.9rem; 
            border: 1px solid var(--border-default);
        }

        .promo-card { 
            background: var(--bg-surface); 
            padding: 24px; 
            border-radius: var(--radius-lg); 
            margin-bottom: 16px; 
            border: 1px solid var(--border-default);
            border-left: 4px solid var(--accent);
        }
        .promo-card h3 { margin-bottom: 12px; }
        .promo-card p { color: var(--text-secondary); margin-bottom: 20px; font-size: 0.95rem; }

        .usp-grid { display: grid; grid-template-columns: 1fr; gap: 16px; margin: 24px 0; }
        .usp-tile { 
            background: var(--bg-elevated); 
            padding: 20px; 
            border-radius: var(--radius-lg); 
            display: flex; 
            gap: 15px; 
            align-items: flex-start;
        }
        .usp-icon { font-size: 1.2rem; color: var(--accent); margin-top: 3px; }
        .usp-content strong { display: block; margin-bottom: 5px; color: var(--text-primary); }
        .usp-content span { font-size: 0.9rem; color: var(--text-secondary); }

        .payment-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
        .pay-card { 
            background: var(--bg-surface); 
            padding: 15px; 
            border-radius: var(--radius-lg); 
            border: 1px solid var(--border-default);
            text-align: center;
        }
        .pay-icon { font-size: 1.4rem; color: var(--accent); margin-bottom: 10px; }
        .pay-name { display: block; font-weight: 600; margin-bottom: 8px; font-size: 0.9rem; }
        .pay-desc { font-size: 0.8rem; color: var(--text-secondary); line-height: 1.4; }

        .guide-steps { display: grid; grid-template-columns: 1fr; gap: 20px; }
        .step-item { display: flex; gap: 15px; background: var(--bg-surface); padding: 20px; border-radius: var(--radius-lg); border: 1px solid var(--border-default); }
        .step-num { 
            background: var(--accent); 
            color: var(--btn-text); 
            width: 32px; 
            height: 32px; 
            border-radius: 50%; 
            display: flex; 
            align-items: center; 
            justify-content: center; 
            font-weight: 700; 
            flex-shrink: 0; 
        }
        .step-text h3 { margin-bottom: 8px; }
        .step-text p { font-size: 0.9rem; color: var(--text-secondary); margin: 0; }
        .step-link { color: var(--accent); }

        .download-box { background: var(--bg-surface); padding: 30px; border-radius: var(--radius-lg); text-align: center; border: 2px dashed var(--border-default); }
        .download-box p { color: var(--text-secondary); margin-bottom: 24px; }

        .provider-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 15px; }
        .provider-card { background: var(--bg-elevated); padding: 20px; border-radius: var(--radius-lg); text-align: center; border: 1px solid var(--border-default); }
        .provider-card h3 { font-size: 1.1rem; margin-bottom: 8px; }
        .provider-card p { font-size: 0.85rem; color: var(--text-secondary); margin: 0; }

        .player-guide-item { background: var(--bg-surface); padding: 20px; border-radius: var(--radius-lg); margin-bottom: 16px; border: 1px solid var(--border-default); }
        .guide-meta { font-size: 0.8rem; color: var(--text-muted); display: block; margin-bottom: 10px; font-style: italic; }

        .announcement-list { display: grid; grid-template-columns: 1fr; gap: 16px; }
        .announcement-item { background: var(--bg-surface); padding: 20px; border-radius: var(--radius-lg); border: 1px solid var(--border-default); }
        .ann-header { display: flex; align-items: center; gap: 12px; margin-bottom: 12px; }
        .ann-icon { color: var(--accent); }
        .ann-title { font-weight: 600; color: var(--text-primary); }
        .ann-date { font-size: 0.8rem; color: var(--text-muted); display: block; margin-top: 10px; }
        .ann-body { font-size: 0.9rem; color: var(--text-secondary); }

        .faq-section { margin: 40px 0; }
        .faq-item { background: var(--bg-surface); margin-bottom: 12px; border-radius: var(--radius-lg); border: 1px solid var(--border-default); }
        .faq-item summary { padding: 16px; cursor: pointer; list-style: none; display: flex; justify-content: space-between; align-items: center; }
        .faq-item summary h3 { margin: 0; font-size: 1.05rem; color: var(--text-primary); }
        .faq-answer { padding: 0 16px 16px; color: var(--text-secondary); font-size: 0.95rem; }

        .about-content { background: var(--bg-surface); padding: 25px; border-radius: var(--radius-lg); border: 1px solid var(--border-default); }
        .team-card { background: var(--bg-elevated); padding: 20px; border-radius: var(--radius-lg); margin-top: 20px; border-top: 3px solid var(--accent); }
        .team-card h3 { font-size: 1.1rem; margin-bottom: 10px; }
        .team-card p { font-size: 0.9rem; color: var(--text-secondary); margin-bottom: 0; }

        .security-box { background: var(--bg-surface); padding: 24px; border-radius: var(--radius-lg); border: 1px solid var(--border-default); }
        .security-list { list-style: none; padding: 0; margin: 0 0 20px 0; }
        .security-list li { padding: 8px 0; border-bottom: 1px solid var(--border-default); font-size: 0.9rem; color: var(--text-secondary); display: flex; align-items: center; gap: 10px; }
        .security-list li i { color: var(--accent); }

        footer { 
            margin-top: 40px; 
            padding: 40px 0; 
            border-top: 1px solid var(--border-default); 
            text-align: center; 
        }
        .footer-sitemap { 
            display: grid; 
            grid-template-columns: repeat(3, 1fr); 
            gap: 10px; 
            max-width: 600px; 
            margin: 0 auto 30px; 
            text-align: left;
        }
        .footer-sitemap a { font-size: 0.85rem; color: var(--text-secondary); }
        .footer-contact { margin-bottom: 20px; font-size: 0.9rem; color: var(--text-secondary); }
        .footer-legal { font-size: 0.8rem; color: var(--text-muted); line-height: 1.5; }

        .navigator { 
            position: fixed; 
            inset-inline: 0; 
            bottom: 0; 
            background: var(--bg-surface); 
            display: flex; 
            justify-content: space-around; 
            align-items: center; 
            padding: 10px 0 calc(10px + env(safe-area-inset-bottom, 0px)); 
            border-top: 1px solid var(--border-default); 
            z-index: 1000; 
        }
        .nav-item { text-align: center; color: var(--text-secondary); text-decoration: none; font-size: 0.7rem; flex: 1; }
        .nav-item i { display: block; font-size: 1.2rem; margin-bottom: 4px; }
        .nav-item:hover { color: var(--accent); }

        .utility-link { display: inline-block; margin-top: 10px; color: var(--accent); font-weight: 600; font-size: 0.9rem; }

        @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); }
            .guide-steps { grid-template-columns: repeat(2, 1fr); }
            .provider-grid { grid-template-columns: repeat(2, 1fr); }
            .announcement-list { grid-template-columns: repeat(2, 1fr); }
            .navigator { position: static; display: none; }
        }
        @media (min-width: 1200px) {
            body { padding-inline: 32px; max-width: 1200px; margin-inline: auto; }
            .category-grid { grid-template-columns: repeat(6, 1fr); }
            .game-grid { grid-template-columns: repeat(4, 1fr); }
            .payment-grid { grid-template-columns: repeat(4, 1fr); }
            .guide-steps { grid-template-columns: repeat(4, 1fr); }
            .provider-grid { grid-template-columns: repeat(4, 1fr); }
            .announcement-list { grid-template-columns: repeat(2, 1fr); }
        }
        section { content-visibility: auto; contain-intrinsic-size: 1px 500px; }