:root {
            --brand-primary: #0A2540;
            --brand-primary-hover: #143A63;
            --brand-secondary: #C0C0C0;
            --brand-secondary-hover: #E0E0E0;
            --brand-accent: #00F5FF;
            --bg-main: #040D1A;
            --bg-surface: #0B1729;
            --bg-elevated: #13223C;
            --bg-overlay: rgba(4, 13, 26, 0.8);
            --text-primary: #E6F1FF;
            --text-secondary: #A5B4CC;
            --text-muted: #6B7C96;
            --text-brand-contrast: #040D1A;
            --text-link: #00F5FF;
            --text-link-hover: #70F9FF;
            --btn-bg: #00F5FF;
            --btn-text: #040D1A;
            --btn-bg-hover: #70F9FF;
            --btn-text-hover: #040D1A;
            --sem-success: #00E676;
            --sem-error: #FF5252;
            --sem-warning: #FFD740;
            --sem-info: #40C4FF;
            --border-def: #1B2D4A;
            --border-strong: #2A4165;
            --border-brand: #00F5FF;
            --radius-sm: 2px;
            --radius-md: 4px;
            --radius-lg: 8px;
            --radius-pill: 9999px;
            --shadow-card: 0 4px 12px rgba(0, 0, 0, 0.5);
            --shadow-elevated: 0 8px 24px rgba(0, 0, 0, 0.7);
            --shadow-glow: 0 0 15px rgba(0, 245, 255, 0.4);
            --grad-brand: linear-gradient(135deg, #0A2540 0%, #00F5FF 100%);
            --grad-hero: linear-gradient(180deg, #0B1729 0%, #040D1A 100%);
            --grad-btn: linear-gradient(to right, #00F5FF, #00D1DB);
        }

        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;
            padding-inline: 14px;
            padding-bottom: calc(72px + env(safe-area-inset-bottom, 0px));
            background-color: var(--bg-main);
            color: var(--text-primary);
            overflow-x: hidden;
        }
        img, video, iframe { max-width: 100%; height: auto; display: block; }
        a { color: var(--text-link); text-decoration: none; transition: color 0.2s ease; }
        a:hover { color: var(--text-link-hover); }

        .btn, .cta {
            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: all 0.3s ease;
            border: none;
            text-align: center;
            font-family: inherit;
        }
        .btn-primary { background: var(--grad-btn); color: var(--btn-text); }
        .btn-primary:hover { background: var(--btn-bg-hover); color: var(--btn-text-hover); box-shadow: var(--shadow-glow); }
        .btn-secondary { background: var(--bg-elevated); color: var(--text-primary); border: 1px solid var(--border-brand); }
        .btn-secondary:hover { background: var(--border-strong); }
        .btn-full { width: 100%; display: flex; }

        h1, h2, h3 { font-family: 'Archivo Black', 'Be Vietnam Pro', sans-serif; letter-spacing: -0.02em; line-height: 1.1; margin: 0; }
        h1 { font-size: clamp(1.6rem, 6.5vw, 2.75rem); margin-bottom: 1.5rem; color: var(--text-primary); }
        h2 { font-size: clamp(1.3rem, 5.2vw, 2.25rem); margin-top: 3rem; margin-bottom: 1.5rem; color: var(--text-primary); }
        h3 { font-size: clamp(1.05rem, 4.2vw, 1.75rem); margin-bottom: 1rem; color: var(--text-primary); }

        header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 1rem 0;
            background-color: var(--bg-surface);
            position: sticky;
            top: 0;
            z-index: 100;
            border-bottom: 1px solid var(--border-def);
        }
        .header-logo { display: flex; align-items: center; gap: 10px; }
        .header-logo strong { font-size: 16px; font-weight: 400; }
        .header-actions { display: flex; gap: 12px; }

        .hero {
            padding: 3rem 0;
            background: var(--grad-hero);
            text-align: center;
        }
        .hero-intro { max-width: 800px; margin: 0 auto 2rem; }
        .hero-p { color: var(--text-secondary); margin-bottom: 2rem; }
        .hero-tags { display: flex; flex-wrap: wrap; justify-content: center; gap: 8px; margin-top: 2rem; }
        .hero-tag { 
            background: var(--bg-elevated); 
            color: var(--brand-accent); 
            padding: 4px 12px; 
            border-radius: var(--radius-pill); 
            font-size: 0.875rem; 
            border: 1px solid var(--border-strong); 
        }

        .banner-wrap { margin: 0; padding: 0; display: block; }
        .banner-wrap img { width: 100%; aspect-ratio: 2 / 1; object-fit: cover; }

        .cat-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 16px;
            margin: 2rem 0;
        }
        .cat-tile {
            background: var(--bg-surface);
            border: 1px solid var(--border-def);
            padding: 20px;
            border-radius: var(--radius-lg);
            text-align: center;
            transition: transform 0.2s ease, border-color 0.2s ease;
        }
        .cat-tile:hover { transform: translateY(-5px); border-color: var(--brand-accent); }
        .cat-tile i { font-size: 2rem; color: var(--brand-accent); margin-bottom: 12px; }
        .cat-tile strong { display: block; font-size: 1.1rem; margin-bottom: 8px; color: var(--text-primary); }
        .cat-tile span { font-size: 0.875rem; color: var(--text-secondary); }

        .game-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 16px;
            margin-bottom: 3rem;
        }
        .game-card {
            background: var(--bg-surface);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-def);
            transition: border-color 0.2s ease;
        }
        .game-card:hover { border-color: var(--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(--text-primary); }

        .fact-table-wrap { background: var(--bg-surface); border-radius: var(--radius-lg); padding: 24px; border: 1px solid var(--border-strong); margin: 2rem 0; }
        .fact-notice { font-style: italic; color: var(--text-muted); font-size: 0.875rem; margin-bottom: 1.5rem; display: block; }
        .fact-table { width: 100%; border-collapse: collapse; }
        .fact-table td { padding: 12px; border-bottom: 1px solid var(--border-def); }
        .fact-table td:first-child { color: var(--text-secondary); font-weight: 500; width: 40%; }
        .fact-table td:last-child { color: var(--text-primary); text-align: right; }
        .fact-terms { display: block; margin-top: 1rem; font-size: 0.875rem; color: var(--text-muted); text-align: center; }

        .toc-nav {
            display: flex;
            overflow-x: auto;
            gap: 12px;
            padding: 1rem 0;
            scrollbar-width: none;
            border-top: 1px solid var(--border-def);
            border-bottom: 1px solid var(--border-def);
            margin: 2rem 0;
        }
        .toc-nav::-webkit-scrollbar { display: none; }
        .toc-link { 
            white-space: nowrap; 
            background: var(--bg-elevated); 
            padding: 8px 16px; 
            border-radius: var(--radius-pill); 
            font-size: 0.875rem; 
            border: 1px solid var(--border-strong); 
        }

        .promo-list { display: flex; flex-direction: column; gap: 20px; margin: 2rem 0; }
        .promo-card { 
            background: var(--bg-surface); 
            border-left: 4px solid var(--brand-accent); 
            padding: 24px; 
            border-radius: var(--radius-lg); 
            box-shadow: var(--shadow-card); 
        }
        .promo-card h3 { margin-bottom: 12px; }
        .promo-card p { color: var(--text-secondary); margin-bottom: 20px; }

        .usp-grid { display: grid; grid-template-columns: 1fr; gap: 16px; margin: 2rem 0; }
        .usp-tile { 
            background: var(--bg-elevated); 
            padding: 20px; 
            border-radius: var(--radius-lg); 
            display: flex; 
            gap: 16px; 
            align-items: flex-start; 
            border: 1px solid var(--border-def); 
        }
        .usp-tile i { font-size: 1.5rem; color: var(--brand-accent); margin-top: 4px; }
        .usp-tile strong { display: block; font-size: 1.1rem; margin-bottom: 4px; color: var(--text-primary); }
        .usp-tile span { font-size: 0.9rem; color: var(--text-secondary); }

        .payment-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; margin: 2rem 0; }
        .pay-card { 
            background: var(--bg-surface); 
            border: 1px solid var(--border-def); 
            padding: 16px; 
            border-radius: var(--radius-lg); 
            text-align: center; 
        }
        .pay-card i { font-size: 1.5rem; color: var(--brand-accent); margin-bottom: 10px; }
        .pay-card strong { display: block; margin-bottom: 8px; font-size: 1rem; }
        .pay-card p { font-size: 0.8rem; color: var(--text-secondary); margin: 0; }

        .guide-steps { display: flex; flex-direction: column; gap: 24px; margin: 2rem 0; }
        .step-item { display: flex; gap: 20px; align-items: flex-start; }
        .step-num { 
            background: var(--brand-accent); 
            color: var(--btn-text); 
            min-width: 36px; 
            height: 36px; 
            border-radius: 50%; 
            display: flex; 
            align-items: center; 
            justify-content: center; 
            font-weight: bold; 
            flex-shrink: 0; 
        }
        .step-content h3 { margin: 0 0 8px 0; }
        .step-content h3 a { color: inherit; }
        .step-content p { margin: 0; color: var(--text-secondary); }

        .app-section { background: var(--bg-surface); padding: 32px; border-radius: var(--radius-lg); border: 1px solid var(--border-strong); margin: 2rem 0; text-align: center; }

        .player-guide { display: flex; flex-direction: column; gap: 20px; margin: 2rem 0; }
        .guide-card { background: var(--bg-elevated); padding: 24px; border-radius: var(--radius-lg); border: 1px solid var(--border-def); }
        .guide-card h3 { margin-bottom: 4px; }
        .guide-card .meta { font-size: 0.8rem; color: var(--text-muted); margin-bottom: 12px; display: block; }

        .announcement-list { display: flex; flex-direction: column; gap: 16px; margin: 2rem 0; }
        .ann-item { 
            background: var(--bg-surface); 
            padding: 20px; 
            border-radius: var(--radius-lg); 
            display: flex; 
            gap: 16px; 
            border: 1px solid var(--border-def); 
        }
        .ann-item i { color: var(--brand-accent); font-size: 1.2rem; margin-top: 4px; }
        .ann-body strong { display: block; margin-bottom: 8px; color: var(--text-primary); }
        .ann-body p { margin: 0 0 8px 0; font-size: 0.9rem; color: var(--text-secondary); }
        .ann-date { font-size: 0.75rem; color: var(--text-muted); }

        .faq-list { display: flex; flex-direction: column; gap: 12px; margin: 2rem 0; }
        .faq-item { background: var(--bg-surface); border-radius: var(--radius-lg); border: 1px solid var(--border-def); }
        .faq-item summary { padding: 16px; cursor: pointer; list-style: none; }
        .faq-item summary h3 { margin: 0; font-size: 1.1rem; display: flex; align-items: center; gap: 10px; }
        .faq-item p { padding: 0 16px 16px; color: var(--text-secondary); margin: 0; font-size: 0.95rem; }

        .about-section { background: var(--bg-surface); padding: 32px; border-radius: var(--radius-lg); margin: 2rem 0; border: 1px solid var(--border-strong); }
        .team-card { 
            background: var(--bg-elevated); 
            padding: 24px; 
            border-radius: var(--radius-lg); 
            margin-top: 2rem; 
            border: 1px solid var(--border-brand); 
        }

        .security-section { background: var(--bg-elevated); padding: 32px; border-radius: var(--radius-lg); margin: 2rem 0; }
        .sec-links { display: flex; flex-wrap: wrap; gap: 12px; margin: 1.5rem 0; }
        .sec-link { background: var(--bg-surface); padding: 8px 16px; border-radius: var(--radius-md); border: 1px solid var(--border-def); font-size: 0.875rem; }

        footer {
            background-color: var(--bg-surface);
            padding: 40px 0 80px;
            border-top: 1px solid var(--border-def);
            text-align: center;
        }
        .footer-sitemap {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 12px;
            max-width: 800px;
            margin: 0 auto 32px;
            text-align: center;
        }
        .footer-sitemap a { font-size: 0.875rem; color: var(--text-secondary); }
        .footer-contact { margin-bottom: 24px; font-size: 0.9rem; }
        .footer-legal { color: var(--text-muted); font-size: 0.8rem; line-height: 1.5; }

        .navigator {
            position: fixed;
            inset-inline: 0;
            bottom: 0;
            height: 72px;
            background: var(--bg-surface);
            border-top: 1px solid var(--border-strong);
            display: flex;
            justify-content: space-around;
            align-items: center;
            padding-bottom: env(safe-area-inset-bottom);
            z-index: 1000;
        }
        .nav-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            color: var(--text-secondary);
            font-size: 0.75rem;
            text-decoration: none;
            gap: 4px;
        }
        .nav-item i { font-size: 1.25rem; }
        .nav-item:hover { color: var(--brand-accent); }

        .util-link { display: block; text-align: center; margin-top: 1.5rem; color: var(--brand-accent); font-weight: 500; }

        @media (min-width: 768px) {
            body { padding-inline: 24px; padding-bottom: 24px; }
            .cat-grid { grid-template-columns: repeat(3, 1fr); }
            .game-grid { grid-template-columns: repeat(3, 1fr); }
            .payment-grid { grid-template-columns: repeat(4, 1fr); }
            .usp-grid { grid-template-columns: repeat(2, 1fr); }
            .navigator { position: static; height: auto; padding: 0; display: none; }
            footer { padding-bottom: 40px; }
        }

        @media (min-width: 1200px) {
            body { padding-inline: 32px; max-width: 1200px; margin-inline: auto; }
            .cat-grid { grid-template-columns: repeat(4, 1fr); }
            .game-grid { grid-template-columns: repeat(4, 1fr); }
            .payment-grid { grid-template-columns: repeat(5, 1fr); }
            .usp-grid { grid-template-columns: repeat(4, 1fr); }
        }

        section { content-visibility: auto; contain-intrinsic-size: 1px 500px; }