:root {
            --primary: #1A3A6D;
            --primary-hover: #254D91;
            --secondary: #C0C0C8;
            --secondary-hover: #D9D9E3;
            --accent: #00F5FF;
            --bg-main: #050A18;
            --bg-surface: #0B1429;
            --bg-elevated: #131E3C;
            --text-primary: #E6EBF5;
            --text-secondary: #B0B8C8;
            --text-muted: #7D8BA3;
            --brand-contrast: #050A18;
            --link: #00F5FF;
            --link-hover: #70F7FF;
            --btn-bg: #00F5FF;
            --btn-text: #050A18;
            --btn-hover-bg: #70F7FF;
            --border-def: #1C2B52;
            --border-strong: #2E427A;
            --border-brand: rgba(0, 245, 255, 0.4);
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 24px;
            --radius-pill: 9999px;
            --shadow-card: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
            --grad-brand: linear-gradient(135deg, #1A3A6D 0%, #00F5FF 100%);
            --grad-hero: radial-gradient(circle at top right, #131E3C, #050A18);
            --grad-btn: linear-gradient(180deg, #00F5FF 0%, #00D1D9 100%);
        }

        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));
            overflow-x: hidden;
            background-color: var(--bg-main);
            color: var(--text-primary);
        }
        img, video, iframe { max-width: 100%; height: auto; display: block; }
        a { color: var(--link); text-decoration: none; transition: color 0.3s ease; }
        a:hover { color: var(--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;
        }
        .btn-primary { background: var(--grad-btn); color: var(--btn-text); }
        .btn-primary:hover { background: var(--btn-hover-bg); transform: translateY(-2px); }
        .btn-outline { border: 1px solid var(--border-brand); color: var(--accent); background: transparent; }
        .btn-outline:hover { background: rgba(0, 245, 255, 0.1); }

        h1 { font-family: 'Be Vietnam Pro', sans-serif; font-size: clamp(1.6rem, 6.5vw, 2.4rem); line-height: 1.2; margin-bottom: 1rem; font-weight: 700; }
        h2 { font-family: 'Be Vietnam Pro', sans-serif; font-size: clamp(1.3rem, 5.2vw, 1.8rem); line-height: 1.25; margin-top: 2.5rem; margin-bottom: 1.5rem; font-weight: 700; color: var(--text-primary); }
        h3 { font-family: 'Be Vietnam Pro', sans-serif; font-size: clamp(1.05rem, 4.2vw, 1.25rem); line-height: 1.3; margin-bottom: 0.75rem; font-weight: 600; }

        header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 16px 0;
            border-bottom: 1px solid var(--border-def);
            margin-bottom: 2rem;
        }
        .header-brand { display: flex; align-items: center; gap: 10px; }
        .header-brand strong { font-size: 16px; font-weight: 400; }
        .header-actions { display: flex; gap: 12px; }

        .hero-panel {
            background: var(--grad-hero);
            padding: 32px 20px;
            border-radius: var(--radius-lg);
            text-align: center;
            border: 1px solid var(--border-brand);
            margin-bottom: 2rem;
        }
        .hero-intro { color: var(--text-secondary); margin-bottom: 2rem; max-width: 800px; margin-inline: auto; }
        .hero-cta { width: 100%; display: block; box-sizing: border-box; font-size: 1.2rem; }
        .hero-tags { display: flex; flex-wrap: wrap; justify-content: center; gap: 10px; margin-top: 2rem; }
        .hero-tag { background: var(--bg-elevated); border: 1px solid var(--border-brand); padding: 6px 14px; border-radius: var(--radius-pill); font-size: 0.85rem; color: var(--accent); }

        .banner-link { display: block; width: 100%; margin-bottom: 2rem; }
        .banner-img { width: 100%; aspect-ratio: 2/1; object-fit: cover; border-radius: var(--radius-md); }

        .cat-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; margin-bottom: 2rem; }
        .cat-tile { 
            background: var(--bg-surface); 
            border: 1px solid var(--border-def); 
            padding: 20px; 
            border-radius: var(--radius-md); 
            text-align: center; 
            transition: all 0.3s ease;
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 10px;
        }
        .cat-tile:hover { border-color: var(--accent); background: var(--bg-elevated); }
        .cat-tile i { font-size: 2rem; color: var(--accent); }
        .cat-tile span { font-weight: 600; color: var(--text-primary); display: block; }
        .cat-desc { font-size: 0.8rem; color: var(--text-muted); line-height: 1.4; }

        .game-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 15px; margin-bottom: 2rem; }
        .game-card { 
            background: var(--bg-surface); 
            border-radius: var(--radius-md); 
            overflow: hidden; 
            border: 1px solid var(--border-def);
            transition: transform 0.3s ease;
        }
        .game-card:hover { transform: scale(1.03); border-color: var(--accent); }
        .game-card img { width: 100%; aspect-ratio: 1/1; object-fit: cover; }
        .game-info { padding: 12px; text-align: center; }
        .game-info h3 { margin: 0; font-size: 1rem; }

        .fact-section { background: var(--bg-surface); padding: 24px; border-radius: var(--radius-lg); border: 1px solid var(--border-strong); }
        .fresh-notice { font-style: italic; color: var(--text-muted); font-size: 0.9rem; margin-bottom: 1.5rem; display: block; }
        .fact-table { width: 100%; border-collapse: collapse; margin-bottom: 1rem; }
        .fact-table td { padding: 12px; border-bottom: 1px solid var(--border-def); }
        .fact-label { font-weight: 600; color: var(--text-secondary); width: 40%; }
        .fact-value { color: var(--text-primary); }
        .terms-link { font-size: 0.85rem; color: var(--text-muted); text-align: center; display: block; }

        .toc-nav { 
            display: flex; 
            overflow-x: auto; 
            gap: 10px; 
            padding: 10px 0; 
            margin-bottom: 2rem; 
            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-pill); 
            white-space: nowrap; 
            font-size: 0.9rem; 
            border: 1px solid var(--border-def);
        }

        .promo-card { 
            background: var(--bg-surface); 
            padding: 24px; 
            border-radius: var(--radius-md); 
            border: 1px solid var(--border-strong); 
            margin-bottom: 15px; 
            display: flex; 
            flex-direction: column; 
            gap: 12px;
        }
        .promo-card h3 { color: var(--accent); margin: 0; }
        .promo-text { color: var(--text-secondary); font-size: 0.95rem; }

        .usp-grid { display: grid; gap: 15px; margin-bottom: 2rem; }
        .usp-tile { 
            background: var(--bg-elevated); 
            padding: 20px; 
            border-radius: var(--radius-md); 
            display: flex; 
            align-items: center; 
            gap: 15px; 
            border-left: 4px solid var(--accent);
        }
        .usp-tile i { font-size: 1.5rem; color: var(--accent); width: 30px; text-align: center; }
        .usp-content strong { display: block; font-size: 1.1rem; margin-bottom: 4px; }
        .usp-content p { margin: 0; font-size: 0.9rem; color: var(--text-secondary); }

        .pay-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; margin-bottom: 2rem; }
        .pay-card { 
            background: var(--bg-surface); 
            padding: 16px; 
            border-radius: var(--radius-md); 
            border: 1px solid var(--border-def); 
            text-align: center; 
            display: flex; 
            flex-direction: column; 
            align-items: center; 
            gap: 10px;
        }
        .pay-card i { font-size: 1.8rem; color: var(--accent); }
        .pay-card strong { display: block; font-size: 0.95rem; }
        .pay-card p { font-size: 0.8rem; color: var(--text-muted); margin: 0; }

        .guide-steps { display: grid; gap: 20px; margin-bottom: 2rem; }
        .step-item { 
            display: flex; 
            gap: 15px; 
            background: var(--bg-surface); 
            padding: 20px; 
            border-radius: var(--radius-md); 
            border: 1px solid var(--border-def);
        }
        .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-content h3 { margin: 0 0 8px 0; }
        .step-content a { color: inherit; text-decoration: none; }

        .download-section { 
            background: var(--bg-elevated); 
            padding: 32px 20px; 
            border-radius: var(--radius-lg); 
            text-align: center; 
            border: 1px solid var(--border-brand);
        }

        .player-guide { background: var(--bg-surface); padding: 20px; border-radius: var(--radius-md); margin-bottom: 15px; border: 1px solid var(--border-def); }
        .guide-meta { font-size: 0.8rem; color: var(--text-muted); display: block; margin-bottom: 10px; }

        .announcement-grid { display: grid; gap: 15px; margin-bottom: 2rem; }
        .announcement-card { 
            background: var(--bg-surface); 
            padding: 20px; 
            border-radius: var(--radius-md); 
            border: 1px solid var(--border-def); 
            display: flex; 
            gap: 15px;
        }
        .announcement-card i { color: var(--accent); font-size: 1.2rem; margin-top: 4px; }
        .announcement-date { font-size: 0.8rem; color: var(--text-muted); display: block; margin-top: 8px; }

        .faq-item { background: var(--bg-surface); border: 1px solid var(--border-def); border-radius: var(--radius-md); margin-bottom: 12px; overflow: hidden; }
        .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; }
        .faq-answer { padding: 0 16px 16px 16px; color: var(--text-secondary); font-size: 0.95rem; border-top: 1px solid var(--border-def); padding-top: 16px; }

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

        .security-footer { background: var(--bg-surface); padding: 32px 20px; border-radius: var(--radius-lg); border: 1px solid var(--border-def); text-align: center; }
        .security-links { display: flex; justify-content: center; gap: 20px; margin: 20px 0; }
        .security-links a { font-weight: 600; font-size: 0.9rem; }

        footer { 
            margin-top: 4rem; 
            padding: 40px 0; 
            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 auto; 
            text-align: center;
        }
        .footer-sitemap a { font-size: 0.9rem; color: var(--text-secondary); }
        .contact-line { margin-bottom: 24px; color: var(--text-secondary); }
        .legal-line { font-size: 0.8rem; color: var(--text-muted); line-height: 1.8; }

        .navigator { 
            position: fixed; 
            inset-inline: 0; 
            bottom: 0; 
            height: 72px; 
            background: var(--bg-surface); 
            border-top: 1px solid var(--border-def); 
            display: flex; 
            justify-content: space-around; 
            align-items: center; 
            padding-bottom: env(safe-area-inset-bottom); 
            z-index: 1000; 
            backdrop-filter: blur(10px);
        }
        .nav-item { 
            display: flex; 
            flex-direction: column; 
            align-items: center; 
            gap: 4px; 
            color: var(--text-secondary); 
            font-size: 0.75rem;
        }
        .nav-item i { font-size: 1.2rem; }
        .nav-item:hover { color: var(--accent); }

        .utility-link { display: block; text-align: center; margin-top: 20px; font-weight: 600; color: var(--accent); }

        @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(2, 1fr); }
            .pay-grid { grid-template-columns: repeat(4, 1fr); }
            .navigator { position: static; display: none; }
        }

        @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); }
            .pay-grid { grid-template-columns: repeat(7, 1fr); }
        }

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