:root {
            --primary-bg: #020617;
            --surface-bg: #0F172A;
            --elevated-bg: #1E293B;
            --accent-cyan: #00F5FF;
            --accent-hover: #7DD3C7;
            --text-primary: #F1F5F9;
            --text-secondary: #94A3B8;
            --text-muted: #64748B;
            --border-color: #1E293B;
            --border-strong: #334155;
            --white: #FFFFFF;
            --success: #10B981;
        }

        html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
        body {
            margin: 0;
            font-family: 'Be Vietnam Pro', sans-serif;
            background-color: var(--primary-bg);
            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: 'Rajdhani', sans-serif;
            color: var(--text-primary);
            letter-spacing: -0.02em;
            line-height: 1.2;
        }

        h1 { font-size: clamp(1.6rem, 6.5vw, 2.4rem); margin-bottom: 1rem; }
        h2 { font-size: clamp(1.3rem, 5.2vw, 1.8rem); margin-top: 2rem; margin-bottom: 1.25rem; }
        h3 { font-size: clamp(1.05rem, 4.2vw, 1.25rem); margin-bottom: 0.75rem; }

        a { color: var(--accent-cyan); text-decoration: none; transition: color 0.2s ease; }
        a:hover { color: var(--accent-hover); }

        header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 1rem 0;
            border-bottom: 1px solid var(--border-color);
        }

        .header-logo-link { display: flex; align-items: center; gap: 8px; }
        .header-brand-name { font-size: 16px; font-weight: normal; color: var(--text-primary); }
        .header-actions { display: flex; gap: 10px; }

        .btn-nav {
            padding: 8px 16px;
            border-radius: 8px;
            font-weight: 500;
            font-size: 0.875rem;
            background: var(--surface-bg);
            color: var(--text-primary);
            border: 1px solid var(--border-strong);
        }
        .btn-nav-primary {
            background: var(--accent-cyan);
            color: var(--primary-bg);
            border-color: var(--accent-cyan);
        }

        main { max-width: 1200px; margin: 0 auto; }

        .hero-section {
            padding: 2rem 0;
            text-align: center;
        }
        .hero-intro {
            max-width: 800px;
            margin: 0 auto 2rem auto;
            color: var(--text-secondary);
        }
        .hero-cta {
            display: block;
            width: 100%;
            background: linear-gradient(180deg, #00F5FF 0%, #00D1FF 100%);
            color: var(--primary-bg);
            text-align: center;
            padding: 16px;
            border-radius: 12px;
            font-weight: 700;
            font-size: 1.25rem;
            box-shadow: 0 0 15px rgba(0, 245, 255, 0.4);
            margin-bottom: 1.5rem;
        }
        .hero-tags {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 8px;
        }
        .hero-tag {
            background: var(--elevated-bg);
            color: var(--accent-cyan);
            padding: 4px 12px;
            border-radius: 9999px;
            font-size: 0.75rem;
            border: 1px solid var(--border-strong);
        }

        .banner-wrap { margin: 1.5rem 0; }
        .banner-img {
            width: 100%;
            aspect-ratio: 2 / 1;
            object-fit: cover;
            border-radius: 12px;
            display: block;
        }

        .category-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 12px;
            margin: 2rem 0;
        }
        .category-tile {
            background: var(--surface-bg);
            padding: 1.5rem;
            border-radius: 12px;
            text-align: center;
            border: 1px solid var(--border-color);
            transition: transform 0.2s ease;
        }
        .category-tile:hover { transform: translateY(-4px); border-color: var(--accent-cyan); }
        .category-tile i { font-size: 2rem; color: var(--accent-cyan); margin-bottom: 0.5rem; display: block; }
        .category-tile strong { display: block; margin-bottom: 8px; font-size: 1.1rem; }
        .category-tile span { font-size: 0.85rem; color: var(--text-secondary); display: block; }

        .game-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 16px;
            margin: 1.5rem 0;
        }
        .game-card {
            background: var(--surface-bg);
            border-radius: 12px;
            overflow: hidden;
            border: 1px solid var(--border-color);
            transition: border-color 0.2s ease;
        }
        .game-card:hover { border-color: var(--accent-cyan); }
        .game-card img {
            width: 100%;
            aspect-ratio: 1 / 1;
            object-fit: cover;
            display: block;
        }
        .game-card h3 {
            padding: 12px;
            margin: 0;
            font-size: 1rem;
            text-align: center;
            color: var(--text-primary);
        }

        .facts-table-wrap { margin: 2rem 0; }
        .facts-notice {
            font-style: italic;
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-bottom: 1rem;
        }
        .facts-table {
            width: 100%;
            border-collapse: collapse;
            background: var(--surface-bg);
            border-radius: 12px;
            overflow: hidden;
            border: 1px solid var(--border-color);
        }
        .facts-table tr { border-bottom: 1px solid var(--border-color); }
        .facts-table td { padding: 12px 16px; vertical-align: middle; }
        .facts-table td:first-child { font-weight: 600; color: var(--text-secondary); width: 40%; }
        .facts-table tr:last-child { border-bottom: none; }
        .facts-footer-link {
            display: block;
            text-align: center;
            margin-top: 1rem;
            font-size: 0.875rem;
            color: var(--text-muted);
        }

        .toc-nav {
            display: flex;
            overflow-x: auto;
            gap: 12px;
            padding: 1rem 0;
            scrollbar-width: none;
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
            margin-bottom: 2rem;
        }
        .toc-nav::-webkit-scrollbar { display: none; }
        .toc-link {
            white-space: nowrap;
            background: var(--elevated-bg);
            padding: 8px 16px;
            border-radius: 8px;
            font-size: 0.875rem;
            border: 1px solid var(--border-strong);
        }

        .promo-list { display: flex; flex-direction: column; gap: 16px; }
        .promo-card {
            background: var(--surface-bg);
            padding: 1.5rem;
            border-radius: 12px;
            border-left: 4px solid var(--accent-cyan);
            border-top: 1px solid var(--border-color);
            border-right: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
        }
        .promo-cta {
            display: inline-block;
            margin-top: 1rem;
            padding: 10px 20px;
            background: var(--accent-cyan);
            color: var(--primary-bg);
            border-radius: 8px;
            font-weight: 600;
        }

        .usp-bar { display: flex; flex-direction: column; gap: 16px; margin: 2rem 0; }
        .usp-tile {
            display: flex;
            align-items: center;
            gap: 16px;
            background: var(--surface-bg);
            padding: 1.25rem;
            border-radius: 12px;
            border: 1px solid var(--border-color);
        }
        .usp-tile i { font-size: 1.5rem; color: var(--accent-cyan); width: 30px; text-align: center; }
        .usp-tile strong { display: block; font-size: 1.1rem; }
        .usp-tile p { margin: 0; font-size: 0.9rem; color: var(--text-secondary); }

        .payment-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 12px;
            margin: 1.5rem 0;
        }
        .payment-card {
            background: var(--surface-bg);
            padding: 1.25rem;
            border-radius: 12px;
            border: 1px solid var(--border-color);
            text-align: center;
        }
        .payment-card i { font-size: 1.8rem; color: var(--accent-cyan); margin-bottom: 0.75rem; display: block; }
        .payment-card h3 { font-size: 1rem; margin-bottom: 8px; }
        .payment-card p { font-size: 0.85rem; color: var(--text-secondary); margin: 0; }

        .guide-steps { display: flex; flex-direction: column; gap: 20px; }
        .guide-step {
            display: flex;
            gap: 16px;
            background: var(--surface-bg);
            padding: 1.5rem;
            border-radius: 12px;
            border: 1px solid var(--border-color);
        }
        .step-badge {
            background: var(--accent-cyan);
            color: var(--primary-bg);
            width: 32px;
            height: 32px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            flex-shrink: 0;
        }
        .guide-step h3 a { color: inherit; text-decoration: none; }

        .download-panel {
            background: var(--surface-bg);
            padding: 2rem;
            border-radius: 12px;
            text-align: center;
            border: 1px solid var(--border-strong);
        }
        .download-cta {
            display: inline-block;
            background: var(--accent-cyan);
            color: var(--primary-bg);
            padding: 14px 32px;
            border-radius: 8px;
            font-weight: 700;
            margin-top: 1rem;
        }

        .player-guide-item {
            background: var(--surface-bg);
            padding: 1.5rem;
            border-radius: 12px;
            border: 1px solid var(--border-color);
            margin-bottom: 16px;
        }
        .guide-meta { font-size: 0.8rem; color: var(--text-muted); margin-bottom: 1rem; display: block; }

        .announcement-list { display: flex; flex-direction: column; gap: 16px; }
        .announcement-card {
            background: var(--surface-bg);
            padding: 1.25rem;
            border-radius: 12px;
            border: 1px solid var(--border-color);
            display: flex;
            gap: 16px;
        }
        .announcement-card i { color: var(--accent-cyan); font-size: 1.25rem; margin-top: 4px; }
        .announcement-date { font-size: 0.8rem; color: var(--text-muted); display: block; margin-top: 8px; }

        .faq-item {
            background: var(--surface-bg);
            margin-bottom: 12px;
            border-radius: 12px;
            border: 1px solid var(--border-color);
            overflow: hidden;
        }
        .faq-item summary {
            padding: 16px;
            cursor: pointer;
            list-style: none;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-weight: 600;
        }
        .faq-item summary h3 { margin: 0; font-size: 1rem; }
        .faq-item p { padding: 0 16px 16px 16px; color: var(--text-secondary); margin: 0; }

        .trust-statement {
            background: var(--surface-bg);
            padding: 2rem;
            border-radius: 12px;
            border: 1px solid var(--border-color);
        }
        .team-card {
            margin-top: 2rem;
            padding-top: 1.5rem;
            border-top: 1px solid var(--border-strong);
        }

        .security-section {
            background: var(--surface-bg);
            padding: 2rem;
            border-radius: 12px;
            border: 1px solid var(--border-color);
            text-align: center;
        }
        .security-links {
            display: flex;
            justify-content: center;
            gap: 20px;
            margin: 1.5rem 0;
            flex-wrap: wrap;
        }
        .security-link {
            color: var(--text-secondary);
            font-size: 0.9rem;
            border: 1px solid var(--border-strong);
            padding: 6px 12px;
            border-radius: 6px;
        }

        footer {
            margin-top: 3rem;
            padding: 2rem 0;
            border-top: 1px solid var(--border-color);
            text-align: center;
        }
        .footer-sitemap {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 12px;
            margin-bottom: 2rem;
            text-align: left;
            max-width: 600px;
            margin-inline: auto;
        }
        .footer-contact { margin-bottom: 1.5rem; font-size: 0.9rem; }
        .footer-legal { font-size: 0.8rem; color: var(--text-muted); line-height: 1.4; }

        .navigator {
            position: fixed;
            inset-inline: 0;
            bottom: 0;
            height: 72px;
            background: var(--surface-bg);
            border-top: 1px solid var(--border-strong);
            display: flex;
            justify-content: space-around;
            align-items: center;
            padding-bottom: env(safe-area-inset-bottom);
            z-index: 1000;
        }
        .nav-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 4px;
            font-size: 0.7rem;
            color: var(--text-secondary);
        }
        .nav-item i { font-size: 1.2rem; color: var(--text-primary); }

        .util-more-link {
            display: block;
            text-align: center;
            margin-top: 1rem;
            color: var(--accent-cyan);
            font-weight: 500;
        }

        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); }
            .navigator { 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); }
        }