:root {
            --brand-primary: #0062FF;
            --brand-primary-hover: #337BFF;
            --brand-secondary: #C0C0C8;
            --brand-accent: #00F5FF;
            --bg-main: #050A18;
            --bg-surface: #0D1428;
            --bg-elevated: #161F3A;
            --text-primary: #F0F4FF;
            --text-secondary: #B0B8D1;
            --text-muted: #7A86A5;
            --border-default: #1E294B;
            --border-brand: rgba(0, 245, 255, 0.4);
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-pill: 9999px;
            --shadow-card: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
            --grad-brand: linear-gradient(135deg, #0062FF 0%, #00F5FF 100%);
        }
        html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
        body {
            margin: 0;
            font-family: 'Manrope', sans-serif;
            background-color: var(--bg-main);
            color: var(--text-primary);
            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;
        }
        h1, h2, h3 {
            font-family: 'Be Vietnam Pro', sans-serif;
            font-weight: 700;
            color: var(--text-primary);
            margin-top: 0;
        }
        h1 { font-size: clamp(1.6rem, 6.5vw, 2.4rem); line-height: 1.2; margin-bottom: 1rem; }
        h2 { font-size: clamp(1.3rem, 5.2vw, 1.8rem); line-height: 1.25; margin-top: 2rem; margin-bottom: 1.25rem; }
        h3 { font-size: clamp(1.05rem, 4.2vw, 1.25rem); line-height: 1.3; margin-bottom: 0.75rem; }
        a { color: var(--brand-accent); text-decoration: none; transition: color 0.2s ease; }
        a:hover { color: #FFFFFF; }
        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: all 0.3s ease;
            border: none;
            text-align: center;
            text-decoration: none;
        }
        .btn-primary { background: var(--grad-brand); color: var(--bg-main); }
        .btn-primary:hover { transform: translateY(-2px); box-shadow: 0 0 15px var(--brand-accent); }
        .btn-outline { background: transparent; border: 1px solid var(--brand-primary); color: var(--text-primary); }
        .btn-outline:hover { background: var(--brand-primary); color: #fff; }
        .glass-card {
            background: rgba(13, 20, 40, 0.7);
            backdrop-filter: blur(10px);
            border: 1px solid var(--border-default);
            border-radius: var(--radius-lg);
            padding: 20px;
            box-shadow: var(--shadow-card);
        }
        header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 0;
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(5, 10, 24, 0.9);
            backdrop-filter: blur(8px);
        }
        .header-logo { display: flex; align-items: center; gap: 8px; text-decoration: none; color: inherit; }
        .header-logo strong { font-size: 16px; font-weight: 400; }
        .header-actions { display: flex; gap: 10px; }
        .hero-section { text-align: center; padding: 40px 0; }
        .hero-intro { max-width: 800px; margin: 0 auto 24px; }
        .hero-tags { display: flex; justify-content: center; gap: 10px; flex-wrap: wrap; margin-top: 20px; }
        .pill-tag { background: var(--bg-elevated); border: 1px solid var(--border-brand); padding: 4px 12px; border-radius: var(--radius-pill); font-size: 0.85rem; color: var(--text-secondary); }
        .banner-link { display: block; width: 100%; margin: 20px 0; overflow: hidden; border-radius: var(--radius-md); }
        .banner-img { width: 100%; aspect-ratio: 2 / 1; object-fit: cover; }
        .category-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; margin-bottom: 30px; }
        .category-tile { 
            display: flex; flex-direction: column; align-items: center; text-align: center; 
            padding: 20px; background: var(--bg-surface); border: 1px solid var(--border-default); 
            border-radius: var(--radius-md); color: inherit; 
        }
        .category-tile i { font-size: 2rem; margin-bottom: 10px; color: var(--brand-accent); }
        .category-tile strong { display: block; margin-bottom: 5px; }
        .category-tile span { font-size: 0.8rem; color: var(--text-muted); }
        .game-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 15px; }
        .game-card { 
            display: block; background: var(--bg-surface); border-radius: var(--radius-md); 
            overflow: hidden; border: 1px solid var(--border-default); transition: transform 0.2s; 
        }
        .game-card:hover { transform: scale(1.03); border-color: var(--brand-accent); }
        .game-card img { width: 100%; aspect-ratio: 1 / 1; object-fit: cover; }
        .game-card h3 { font-size: 0.95rem; padding: 10px; text-align: center; margin: 0; color: var(--text-primary); }
        .fact-table { width: 100%; border-collapse: collapse; margin: 15px 0; }
        .fact-table td { padding: 12px; border-bottom: 1px solid var(--border-default); }
        .fact-table td:first-child { color: var(--text-secondary); font-weight: 500; width: 40%; }
        .freshness-notice { font-style: italic; color: var(--text-muted); font-size: 0.85rem; margin-bottom: 15px; }
        .toc-nav { 
            display: flex; overflow-x: auto; gap: 10px; padding: 10px 0; margin-bottom: 30px; 
            scrollbar-width: none; -ms-overflow-style: none; 
        }
        .toc-nav::-webkit-scrollbar { display: none; }
        .toc-link { 
            white-space: nowrap; padding: 8px 16px; background: var(--bg-surface); 
            border: 1px solid var(--border-default); border-radius: var(--radius-pill); 
            font-size: 0.9rem; color: var(--text-secondary); 
        }
        .promo-card { margin-bottom: 20px; display: flex; flex-direction: column; gap: 15px; }
        .usp-grid { display: grid; grid-template-columns: 1fr; gap: 15px; margin-bottom: 30px; }
        .usp-item { display: flex; gap: 15px; align-items: flex-start; padding: 15px; background: var(--bg-surface); border-radius: var(--radius-md); }
        .usp-item i { font-size: 1.5rem; color: var(--brand-accent); margin-top: 4px; }
        .payment-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
        .payment-card { 
            text-align: center; padding: 15px; background: var(--bg-surface); 
            border: 1px solid var(--border-default); border-radius: var(--radius-md); 
        }
        .payment-card i { font-size: 1.8rem; margin-bottom: 10px; display: block; color: var(--brand-accent); }
        .payment-card strong { display: block; font-size: 0.9rem; margin-bottom: 8px; }
        .payment-card p { font-size: 0.75rem; color: var(--text-muted); margin: 0; }
        .guide-step { display: flex; gap: 20px; margin-bottom: 25px; align-items: center; }
        .step-num { 
            min-width: 40px; height: 40px; background: var(--grad-brand); color: var(--bg-main); 
            border-radius: 50%; display: flex; align-items: center; justify-content: center; 
            font-weight: 800; font-size: 1.2rem; 
        }
        .app-section { text-align: center; padding: 30px; background: var(--bg-surface); border-radius: var(--radius-lg); }
        .player-guide-item { margin-bottom: 20px; padding: 20px; background: var(--bg-surface); border-radius: var(--radius-md); }
        .guide-meta { font-size: 0.8rem; color: var(--text-muted); margin-bottom: 10px; display: block; }
        .announcement-item { display: flex; gap: 15px; padding: 15px; background: var(--bg-surface); border-radius: var(--radius-md); margin-bottom: 12px; }
        .announcement-item i { color: var(--brand-accent); margin-top: 5px; }
        .announcement-date { font-size: 0.75rem; color: var(--text-muted); display: block; margin-top: 8px; }
        .faq-item { margin-bottom: 15px; border-bottom: 1px solid var(--border-default); }
        .faq-item summary { cursor: pointer; list-style: none; padding: 15px 0; }
        .faq-item summary h3 { margin: 0; font-size: 1.1rem; display: flex; justify-content: space-between; align-items: center; }
        .faq-item summary h3::after { content: '\f078'; font-family: 'Font Awesome 6 Free'; font-weight: 900; font-size: 0.9rem; transition: transform 0.3s; }
        .faq-item[open] summary h3::after { transform: rotate(180deg); }
        .faq-answer { padding-bottom: 15px; color: var(--text-secondary); }
        .trust-card { background: var(--bg-elevated); padding: 25px; border-radius: var(--radius-lg); margin-top: 30px; }
        .footer-sitemap { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin-bottom: 30px; }
        .footer-link { font-size: 0.85rem; color: var(--text-secondary); }
        .footer-bottom { border-top: 1px solid var(--border-default); padding-top: 20px; text-align: center; font-size: 0.8rem; color: var(--text-muted); }
        .navigator { 
            position: fixed; inset-inline: 0; bottom: 0; background: rgba(13, 20, 40, 0.95); 
            backdrop-filter: blur(15px); border-top: 1px solid var(--border-brand); 
            display: flex; justify-content: space-around; padding: 10px 0 calc(10px + env(safe-area-inset-bottom)); z-index: 1000; 
        }
        .nav-item { display: flex; flex-direction: column; align-items: center; color: var(--text-secondary); font-size: 0.7rem; gap: 4px; }
        .nav-item i { font-size: 1.2rem; }
        .util-link { color: var(--text-secondary); font-size: 0.85rem; text-decoration: underline; transition: color 0.2s; }
        .util-link:hover { color: var(--brand-accent); }
        section { content-visibility: auto; contain-intrinsic-size: 1px 500px; }
        @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(4, 1fr); }
            .payment-grid { grid-template-columns: repeat(4, 1fr); }
            .usp-grid { grid-template-columns: repeat(2, 1fr); }
            .guide-step { align-items: flex-start; }
            .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); }
        }