:root {
            --brand-primary: #0A192F;
            --brand-primary-hover: #112240;
            --brand-secondary: #C0C0C8;
            --brand-accent: #00F5FF;
            --bg-main: #050B18;
            --bg-surface: #0B1426;
            --bg-elevated: #131C33;
            --text-primary: #E6F1FF;
            --text-secondary: #A8B2D1;
            --text-muted: #64748B;
            --btn-bg: #00F5FF;
            --btn-text: #050B18;
            --btn-hover-bg: #70F9FF;
            --border-default: #1E293B;
            --border-brand: rgba(0, 245, 255, 0.4);
            --radius-md: 12px;
            --radius-lg: 24px;
            --radius-pill: 9999px;
            --shadow-card: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
            --glass-bg: rgba(11, 20, 38, 0.7);
        }

        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(--brand-accent); text-decoration: none; transition: color 0.3s ease; }
        a:hover { color: var(--btn-hover-bg); }
        
        .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-pill);
            font-weight: 600;
            cursor: pointer;
            border: none;
            transition: all 0.3s ease;
            text-align: center;
        }
        .btn-primary { background: var(--btn-bg); color: var(--btn-text); }
        .btn-primary:hover { background: var(--btn-hover-bg); transform: translateY(-2px); }
        .btn-outline { background: transparent; border: 1px solid var(--border-brand); color: var(--brand-accent); }
        .btn-outline:hover { background: rgba(0, 245, 255, 0.1); }
        .btn-full { width: 100%; }

        header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 1rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(5, 11, 24, 0.8);
            backdrop-filter: blur(10px);
        }
        .header-logo-link { display: flex; align-items: center; gap: 8px; }
        .header-logo-link strong { font-size: 16px; font-weight: 400; color: var(--text-primary); }
        .header-actions { display: flex; gap: 12px; }

        main { width: 100%; }

        .hero-section {
            padding: 2rem 0;
            text-align: center;
            background: radial-gradient(circle at center, #112240 0%, #050B18 100%);
        }
        h1 { font-size: clamp(1.6rem, 6.5vw, 2.4rem); line-height: 1.2; margin-bottom: 1.5rem; color: var(--text-primary); }
        .hero-text { font-size: 1.1rem; color: var(--text-secondary); margin-bottom: 2rem; max-width: 800px; margin-inline: auto; }
        .hero-tags { display: flex; flex-wrap: wrap; justify-content: center; gap: 10px; margin-top: 2rem; }
        .tag-pill { background: var(--bg-elevated); border: 1px solid var(--border-brand); padding: 4px 12px; border-radius: var(--radius-pill); font-size: 0.85rem; color: var(--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-md); }

        .category-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 16px;
            margin: 2rem 0;
        }
        .category-tile {
            background: var(--bg-surface);
            border: 1px solid var(--border-default);
            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;
        }
        .category-tile:hover { border-color: var(--brand-accent); background: var(--bg-elevated); transform: translateY(-5px); }
        .category-tile i { font-size: 2rem; color: var(--brand-accent); }
        .category-tile span { font-weight: 600; display: block; color: var(--text-primary); }
        .category-tile p { font-size: 0.85rem; color: var(--text-muted); margin: 0; }

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

        .facts-container { margin: 2rem 0; }
        .facts-header { margin-bottom: 0.5rem; }
        .freshness-notice { font-style: italic; color: var(--text-muted); font-size: 0.85rem; margin-bottom: 1.5rem; display: block; }
        .facts-table { width: 100%; border-collapse: collapse; background: var(--bg-surface); border-radius: var(--radius-md); overflow: hidden; }
        .facts-table td { padding: 12px 16px; border-bottom: 1px solid var(--border-default); }
        .facts-table td:first-child { font-weight: 600; color: var(--text-secondary); width: 40%; }
        .facts-table td:last-child { color: var(--text-primary); }
        .facts-footer-link { display: block; margin-top: 1rem; font-size: 0.85rem; color: var(--text-muted); text-align: center; }

        .toc-nav {
            display: flex;
            overflow-x: auto;
            gap: 12px;
            padding: 1rem 0;
            scrollbar-width: none;
            border-bottom: 1px solid var(--border-default);
        }
        .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: 0.9rem;
            border: 1px solid var(--border-default);
        }

        .promo-list { display: flex; flex-direction: column; gap: 20px; margin: 2rem 0; }
        .promo-card {
            background: linear-gradient(135deg, var(--bg-surface) 0%, var(--bg-elevated) 100%);
            border: 1px solid var(--border-brand);
            padding: 24px;
            border-radius: var(--radius-lg);
            position: relative;
        }
        .promo-card h3 { margin-top: 0; color: var(--brand-accent); }
        .promo-card p { color: var(--text-secondary); margin-bottom: 1.5rem; }

        .usp-grid { display: flex; flex-direction: column; gap: 16px; margin: 2rem 0; }
        .usp-item {
            display: flex;
            align-items: center;
            gap: 16px;
            background: var(--bg-surface);
            padding: 16px;
            border-radius: var(--radius-md);
            border-left: 4px solid var(--brand-accent);
        }
        .usp-item i { font-size: 1.5rem; color: var(--brand-accent); width: 30px; text-align: center; }
        .usp-content strong { display: block; color: var(--text-primary); margin-bottom: 4px; }
        .usp-content p { margin: 0; font-size: 0.9rem; color: var(--text-secondary); }

        .guide-steps { display: flex; flex-direction: column; gap: 24px; margin: 2rem 0; }
        .guide-step { display: flex; gap: 20px; align-items: flex-start; }
        .step-badge {
            background: var(--brand-accent);
            color: var(--btn-text);
            width: 32px;
            height: 32px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
            flex-shrink: 0;
        }
        .guide-step h3 { margin: 0 0 8px 0; color: var(--text-primary); }
        .guide-step a { color: inherit; }

        .payment-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 16px;
            margin: 2rem 0;
        }
        .pay-card {
            background: var(--bg-surface);
            border: 1px solid var(--border-default);
            padding: 16px;
            border-radius: var(--radius-md);
            text-align: center;
        }
        .pay-card i { font-size: 2rem; color: var(--brand-accent); margin-bottom: 12px; }
        .pay-card strong { display: block; margin-bottom: 8px; color: var(--text-primary); }
        .pay-card p { font-size: 0.85rem; color: var(--text-secondary); margin: 0; }

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

        .player-guides { display: flex; flex-direction: column; gap: 20px; margin: 2rem 0; }
        .guide-item {
            background: var(--bg-surface);
            padding: 20px;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-default);
        }
        .guide-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; }
        .announcement-item {
            background: var(--bg-elevated);
            padding: 16px;
            border-radius: var(--radius-md);
            display: flex;
            gap: 16px;
            border: 1px solid var(--border-default);
        }
        .announcement-item i { color: var(--brand-accent); margin-top: 4px; }
        .announcement-date { font-size: 0.8rem; color: var(--text-muted); display: block; margin-top: 8px; }

        .faq-container { margin: 2rem 0; }
        details { background: var(--bg-surface); margin-bottom: 12px; border-radius: var(--radius-md); border: 1px solid var(--border-default); }
        summary { padding: 16px; cursor: pointer; list-style: none; }
        summary h3 { margin: 0; font-size: 1.1rem; color: var(--text-primary); }
        .faq-answer { padding: 0 16px 16px 16px; color: var(--text-secondary); }

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

        .security-footer {
            background: var(--bg-surface);
            padding: 2rem;
            border-radius: var(--radius-lg);
            margin: 2rem 0;
            border: 1px solid var(--border-default);
        }
        .security-links { display: flex; flex-wrap: wrap; gap: 15px; margin: 1.5rem 0; }
        .security-links a { background: var(--bg-main); padding: 8px 16px; border-radius: var(--radius-pill); font-size: 0.9rem; border: 1px solid var(--border-default); }

        footer {
            background: var(--bg-surface);
            padding: 3rem 0 5rem 0;
            border-top: 1px solid var(--border-default);
            text-align: center;
        }
        .footer-sitemap {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 12px;
            max-width: 800px;
            margin: 0 auto 2rem auto;
            text-align: left;
        }
        .footer-sitemap a { font-size: 0.9rem; color: var(--text-secondary); }
        .footer-contact { margin-bottom: 2rem; font-size: 1rem; }
        .footer-legal { font-size: 0.85rem; color: var(--text-muted); line-height: 1.4; }

        .navigator {
            position: fixed;
            inset-inline: 0;
            bottom: 0;
            height: 72px;
            background: rgba(11, 20, 38, 0.95);
            backdrop-filter: blur(15px);
            display: flex;
            justify-content: space-around;
            align-items: center;
            padding-bottom: env(safe-area-inset-bottom);
            border-top: 1px solid var(--border-brand);
            z-index: 2000;
        }
        .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: 1.25rem; }
        .nav-item:hover { color: var(--brand-accent); }

        .util-link-more { display: block; text-align: center; margin-top: 1rem; font-weight: 600; }

        @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); }
            .navigator { position: static; display: none; }
            footer { padding-bottom: 2rem; }
        }

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

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