:root {
            --primary: #0F2C59;
            --primary-hover: #1A3E7D;
            --secondary: #C0C0C8;
            --secondary-hover: #D8D8E0;
            --accent: #00F2FF;
            --bg-main: #060B1A;
            --bg-surface: #0D152B;
            --bg-elevated: #16213E;
            --text-primary: #E6EEF5;
            --text-secondary: #B0BCC8;
            --text-muted: #7A8B9B;
            --border-default: #1E2B4A;
            --border-brand: rgba(0, 242, 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);
            --glow-cyan: 0 0 15px rgba(0, 242, 255, 0.6);
            --grad-brand: linear-gradient(135deg, #0F2C59 0%, #00F2FF 100%);
            --grad-btn: linear-gradient(180deg, #00F2FF 0%, #00C2D1 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);
        }
        h1, h2, h3 { font-family: 'Sora', sans-serif; color: var(--text-primary); margin-top: 2rem; }
        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; }
        h3 { font-size: clamp(1.05rem, 4.2vw, 1.25rem); line-height: 1.3; }

        header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 1rem 0;
            border-bottom: 1px solid var(--border-default);
        }
        .header-logo {
            display: flex;
            align-items: center;
            gap: 8px;
            text-decoration: none;
            color: var(--text-primary);
        }
        .header-logo strong { font-size: 16px; font-weight: normal; }
        .header-actions { display: flex; gap: 12px; }
        
        .btn-base {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-height: 44px;
            min-inline-size: 44px;
            padding: 12px 18px;
            border-radius: var(--radius-md);
            text-decoration: none;
            font-weight: 600;
            transition: all 0.3s ease;
            cursor: pointer;
            border: none;
        }
        .btn-primary { background: var(--grad-btn); color: var(--bg-main); }
        .btn-primary:hover { transform: translateY(-2px); box-shadow: var(--glow-cyan); }
        .btn-outline { background: transparent; color: var(--accent); border: 1px solid var(--accent); }
        .btn-outline:hover { background: rgba(0, 242, 255, 0.1); }
        .btn-full { width: 100%; display: block; box-sizing: border-box; }

        main { width: 100%; }
        .hero-section { text-align: center; padding: 2rem 0; }
        .hero-intro { color: var(--text-secondary); max-width: 800px; margin: 0 auto 2rem; }
        .hero-tags { display: flex; flex-wrap: wrap; justify-content: center; gap: 10px; margin-top: 1.5rem; }
        .tag-pill {
            background: rgba(0, 242, 255, 0.1);
            border: 1px solid var(--border-brand);
            color: var(--accent);
            padding: 4px 12px;
            border-radius: var(--radius-pill);
            font-size: 0.85rem;
        }

        .banner-link { display: block; width: 100%; text-decoration: none; }
        .banner-link img { width: 100%; aspect-ratio: 2 / 1; object-fit: cover; border-radius: var(--radius-lg); }

        .category-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 12px;
            margin: 2rem 0;
        }
        .cat-tile {
            background: var(--bg-surface);
            border: 1px solid var(--border-default);
            padding: 1.5rem;
            border-radius: var(--radius-md);
            text-decoration: none;
            color: var(--text-primary);
            text-align: center;
            transition: border-color 0.3s;
        }
        .cat-tile:hover { border-color: var(--accent); }
        .cat-tile i { font-size: 2rem; color: var(--accent); margin-bottom: 10px; display: block; }
        .cat-tile strong { display: block; margin-bottom: 8px; }
        .cat-tile span { font-size: 0.85rem; color: var(--text-secondary); line-height: 1.4; }

        .game-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 15px;
        }
        .game-card {
            background: var(--bg-surface);
            border-radius: var(--radius-md);
            text-decoration: none;
            color: var(--text-primary);
            overflow: hidden;
            transition: transform 0.3s;
            border: 1px solid var(--border-default);
        }
        .game-card:hover { transform: scale(1.03); border-color: var(--border-brand); }
        .game-card img { width: 100%; aspect-ratio: 1 / 1; object-fit: cover; }
        .game-card h3 { margin: 10px; font-size: 1rem; text-align: center; }

        .fact-table-wrapper { margin: 2rem 0; }
        .fact-notice { font-style: italic; color: var(--text-muted); font-size: 0.9rem; margin-bottom: 1rem; }
        .fact-table {
            width: 100%;
            border-collapse: collapse;
            background: var(--bg-surface);
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border-default);
        }
        .fact-table tr { border-bottom: 1px solid var(--border-default); }
        .fact-table tr:last-child { border-bottom: none; }
        .fact-table td { padding: 12px 15px; font-size: 0.95rem; }
        .fact-label { color: var(--text-secondary); font-weight: 500; width: 40%; }
        .fact-value { color: var(--text-primary); }
        .fact-footer { margin-top: 10px; font-size: 0.85rem; text-align: center; }
        .fact-footer a { color: var(--accent); text-decoration: none; }

        .toc-nav {
            display: flex;
            overflow-x: auto;
            gap: 10px;
            padding: 1rem 0;
            scrollbar-width: none;
        }
        .toc-nav::-webkit-scrollbar { display: none; }
        .toc-link {
            white-space: nowrap;
            background: var(--bg-elevated);
            color: var(--text-secondary);
            padding: 8px 16px;
            border-radius: var(--radius-pill);
            text-decoration: none;
            font-size: 0.9rem;
            border: 1px solid var(--border-default);
        }
        .toc-link:hover { color: var(--accent); border-color: var(--accent); }

        .promo-list { display: flex; flex-direction: column; gap: 20px; }
        .promo-card {
            background: var(--bg-surface);
            border: 1px solid var(--border-default);
            padding: 2rem;
            border-radius: var(--radius-lg);
            position: relative;
            overflow: hidden;
        }
        .promo-card::before {
            content: '';
            position: absolute;
            top: 0; left: 0; width: 4px; height: 100%;
            background: var(--accent);
        }

        .usp-bar { display: flex; flex-direction: column; gap: 15px; margin: 2rem 0; }
        .usp-tile {
            background: var(--bg-surface);
            padding: 1.5rem;
            border-radius: var(--radius-md);
            display: flex;
            gap: 15px;
            align-items: center;
            border: 1px solid var(--border-default);
        }
        .usp-tile i { font-size: 1.5rem; color: var(--accent); }
        .usp-content strong { display: block; color: var(--text-primary); }
        .usp-content p { margin: 0; font-size: 0.9rem; color: var(--text-secondary); }

        .payment-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 12px;
            margin-top: 1.5rem;
        }
        .pay-card {
            background: var(--bg-surface);
            padding: 1.2rem;
            border-radius: var(--radius-md);
            text-align: center;
            border: 1px solid var(--border-default);
        }
        .pay-card i { font-size: 1.8rem; color: var(--accent); margin-bottom: 10px; display: block; }
        .pay-card strong { display: block; margin-bottom: 8px; }
        .pay-card p { margin: 0; font-size: 0.8rem; color: var(--text-secondary); }

        .guide-steps { display: flex; flex-direction: column; gap: 20px; }
        .step-item {
            display: flex;
            gap: 15px;
            background: var(--bg-surface);
            padding: 1.5rem;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-default);
        }
        .step-num {
            flex-shrink: 0;
            width: 36px;
            height: 36px;
            background: var(--accent);
            color: var(--bg-main);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
        }
        .step-text h3 { margin-top: 0; }
        .step-text a { color: inherit; text-decoration: none; }

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

        .announcement-list { display: flex; flex-direction: column; gap: 15px; }
        .announcement-item {
            background: var(--bg-surface);
            padding: 1.2rem;
            border-radius: var(--radius-md);
            border-left: 3px solid var(--accent);
        }
        .announcement-header { display: flex; align-items: center; gap: 10px; margin-bottom: 8px; }
        .announcement-date { font-size: 0.8rem; color: var(--text-muted); margin-left: auto; }

        .faq-section { margin: 2rem 0; }
        details { background: var(--bg-surface); margin-bottom: 10px; border-radius: var(--radius-md); border: 1px solid var(--border-default); }
        summary { padding: 15px; cursor: pointer; list-style: none; display: flex; justify-content: space-between; align-items: center; }
        summary::-webkit-details-marker { display: none; }
        summary h3 { margin: 0; font-size: 1rem; }
        .faq-answer { padding: 0 15px 15px; color: var(--text-secondary); font-size: 0.95rem; }

        .trust-card {
            background: var(--bg-elevated);
            padding: 1.5rem;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-default);
            margin-top: 1.5rem;
        }

        footer {
            margin-top: 3rem;
            padding: 2rem 0;
            border-top: 1px solid var(--border-default);
            text-align: center;
        }
        .footer-sitemap {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 10px;
            margin-bottom: 2rem;
        }
        .footer-sitemap a {
            color: var(--text-secondary);
            text-decoration: none;
            font-size: 0.85rem;
        }
        .footer-contact { margin-bottom: 1.5rem; font-size: 0.9rem; }
        .footer-contact a { color: var(--accent); text-decoration: none; }
        .footer-legal { font-size: 0.8rem; color: var(--text-muted); }

        .navigator {
            position: fixed;
            inset-inline: 0;
            bottom: 0;
            height: 72px;
            background: var(--bg-surface);
            backdrop-filter: blur(10px);
            border-top: 1px solid var(--border-default);
            display: flex;
            justify-content: space-around;
            align-items: center;
            padding-bottom: env(safe-area-inset-bottom);
            z-index: 1000;
        }
        .nav-item {
            text-decoration: none;
            color: var(--text-secondary);
            display: flex;
            flex-direction: column;
            align-items: center;
            font-size: 0.75rem;
            gap: 4px;
        }
        .nav-item i { font-size: 1.2rem; }
        .nav-item:hover { color: var(--accent); }

        .util-link { color: var(--accent); text-decoration: none; font-weight: 500; display: inline-block; margin-top: 10px; }

        @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; height: auto; padding: 0; border: none; display: none; }
            .hero-section { padding: 4rem 0; }
        }

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

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