:root {
            --brand-primary: #0066FF;
            --brand-primary-hover: #3385FF;
            --brand-secondary: #C0C0C0;
            --brand-accent: #00F5FF;
            --bg-main: #050A18;
            --bg-surface: #0D1428;
            --bg-elevated: #16203D;
            --text-primary: #E6EEFF;
            --text-secondary: #A0B0D0;
            --text-muted: #6B7B9B;
            --border-default: #1E2B4D;
            --border-brand: rgba(0, 245, 255, 0.4);
            --radius-md: 12px;
            --radius-lg: 24px;
            --glass-bg: rgba(13, 20, 40, 0.7);
            --glass-border: 1px solid rgba(0, 245, 255, 0.3);
            --shadow-card: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
        }

        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 { max-width: 100%; height: auto; display: block; }

        a { color: var(--brand-accent); text-decoration: none; transition: color 0.2s; }
        a:hover { color: #70F9FF; }

        .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;
            border: none;
            text-align: center;
        }

        .btn-primary {
            background: linear-gradient(180deg, #007BFF 0%, #0052CC 100%);
            color: #FFFFFF;
        }
        .btn-primary:hover {
            background: var(--brand-accent);
            color: var(--bg-main);
            box-shadow: 0 0 15px rgba(0, 245, 255, 0.6);
        }

        .btn-outline {
            background: transparent;
            border: 1px solid var(--brand-primary);
            color: var(--text-primary);
        }
        .btn-outline:hover {
            background: var(--brand-primary);
            color: #FFFFFF;
        }

        header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding-block: 16px;
            border-bottom: 1px solid var(--border-default);
        }

        .header-logo-link {
            display: flex;
            align-items: center;
            gap: 8px;
            color: var(--text-primary);
        }

        .header-brand-name {
            font-size: 16px;
            font-weight: normal;
        }

        .header-actions {
            display: flex;
            gap: 12px;
        }

        main { width: 100%; }

        .hero-section {
            padding-block: 40px 20px;
            text-align: center;
        }

        h1 {
            font-size: clamp(1.6rem, 6.5vw, 2.4rem);
            line-height: 1.2;
            margin-bottom: 20px;
            background: linear-gradient(135deg, #FFFFFF 0%, var(--brand-accent) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .hero-intro {
            max-width: 800px;
            margin: 0 auto 30px;
            color: var(--text-secondary);
        }

        .hero-cta-wrap {
            margin-bottom: 24px;
        }

        .cta-full-width {
            display: block;
            width: 100%;
            max-width: 400px;
            margin: 0 auto;
        }

        .hero-tags {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 10px;
        }

        .tag-pill {
            background: var(--bg-elevated);
            border: 1px solid var(--border-brand);
            padding: 4px 12px;
            border-radius: 9999px;
            font-size: 0.85rem;
            color: var(--brand-accent);
        }

        .banner-link {
            display: block;
            margin-block: 20px 0;
        }
        .banner-img {
            width: 1024px;
            height: 512px;
            aspect-ratio: 2 / 1;
            object-fit: cover;
            border-radius: var(--radius-lg);
        }

        .cat-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 16px;
            margin-block: 30px 0;
        }

        .cat-tile {
            background: var(--glass-bg);
            backdrop-filter: blur(10px);
            border: var(--glass-border);
            padding: 20px;
            border-radius: var(--radius-md);
            text-align: center;
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 10px;
            transition: transform 0.2s;
        }
        .cat-tile:hover { transform: translateY(-5px); }
        .cat-icon { font-size: 2rem; color: var(--brand-accent); }
        .cat-name { display: block; font-weight: 600; color: var(--text-primary); }
        .cat-desc { font-size: 0.85rem; color: var(--text-secondary); }

        .game-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 16px;
            margin-block: 20px 0;
        }

        .game-card {
            background: var(--bg-surface);
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border-default);
            transition: border-color 0.3s;
        }
        .game-card:hover { border-color: var(--brand-accent); }
        .game-img {
            width: 100%;
            aspect-ratio: 1 / 1;
            object-fit: cover;
        }
        .game-info { padding: 12px; text-align: center; }
        .game-title {
            font-size: 1rem;
            margin: 0;
            color: var(--text-primary);
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .facts-section {
            background: var(--bg-surface);
            border-radius: var(--radius-lg);
            padding: 24px;
            margin-block: 30px 0;
            border: 1px solid var(--border-default);
        }
        .freshness-notice {
            font-style: italic;
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-bottom: 16px;
            display: block;
        }
        .facts-table {
            width: 100%;
            border-collapse: collapse;
        }
        .facts-row { border-bottom: 1px solid var(--border-default); }
        .facts-label {
            padding: 12px;
            color: var(--text-secondary);
            width: 40%;
            font-weight: 500;
        }
        .facts-value {
            padding: 12px;
            color: var(--text-primary);
            text-align: right;
        }
        .terms-link-wrap {
            margin-top: 16px;
            text-align: center;
            font-size: 0.85rem;
        }

        .toc-nav {
            display: flex;
            overflow-x: auto;
            gap: 12px;
            padding-block: 20px;
            scrollbar-width: 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-default);
        }

        .promo-list { display: flex; flex-direction: column; gap: 20px; }
        .promo-card {
            background: var(--glass-bg);
            border: var(--glass-border);
            padding: 24px;
            border-radius: var(--radius-lg);
            display: flex;
            flex-direction: column;
            gap: 15px;
        }

        .usp-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 20px;
            margin-block: 30px 0;
        }
        .usp-tile {
            display: flex;
            gap: 16px;
            background: var(--bg-surface);
            padding: 20px;
            border-radius: var(--radius-md);
            align-items: flex-start;
        }
        .usp-icon { font-size: 1.5rem; color: var(--brand-accent); }
        .usp-text strong { display: block; margin-bottom: 4px; }

        .payment-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 16px;
            margin-block: 20px 0;
        }
        .pay-card {
            background: var(--bg-elevated);
            padding: 20px;
            border-radius: var(--radius-md);
            text-align: center;
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 10px;
        }
        .pay-icon { font-size: 2rem; color: var(--text-primary); }

        .guide-step {
            display: flex;
            gap: 20px;
            padding-block: 20px;
            border-bottom: 1px solid var(--border-default);
        }
        .step-num {
            min-width: 40px;
            height: 40px;
            background: var(--brand-primary);
            color: #fff;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
        }

        .announcement-item {
            display: flex;
            gap: 15px;
            padding-block: 15px;
            border-bottom: 1px solid var(--border-default);
        }
        .ann-icon { color: var(--brand-accent); margin-top: 4px; }
        .ann-date { font-size: 0.8rem; color: var(--text-muted); display: block; margin-bottom: 5px; }

        .faq-container {
            display: flex;
            flex-direction: column;
            gap: 12px;
            margin-block: 20px 0;
        }
        details {
            background: var(--bg-surface);
            border: 1px solid var(--border-default);
            border-radius: var(--radius-md);
            padding: 12px;
        }
        summary {
            cursor: pointer;
            list-style: none;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        summary::-webkit-details-marker { display: none; }

        footer {
            margin-top: 50px;
            padding-block: 40px 20px;
            border-top: 1px solid var(--border-default);
            text-align: center;
        }
        .footer-sitemap {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 10px;
            margin-bottom: 30px;
        }
        .footer-contact { margin-bottom: 20px; }

        .navigator {
            position: fixed;
            inset-inline: 0;
            bottom: 0;
            height: 72px;
            background: var(--bg-surface);
            border-top: 1px solid var(--border-brand);
            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;
            font-size: 0.75rem;
            color: var(--text-secondary);
        }
        .nav-item i { font-size: 1.2rem; }

        .utility-link {
            display: inline-block;
            margin-top: 10px;
            font-weight: 600;
            color: var(--brand-accent);
        }

        .team-card {
            background: var(--bg-elevated);
            padding: 20px;
            border-radius: var(--radius-md);
            margin-top: 20px;
            border-left: 4px solid var(--brand-accent);
        }

        section {
            content-visibility: auto;
            contain-intrinsic-size: 1px 500px;
            padding-block: 40px 0;
        }

        @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(4, 1fr); }
            .payment-grid { grid-template-columns: repeat(4, 1fr); }
            .navigator { 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); }
        }