:root {
            --brand-primary: #005BFF;
            --brand-primary-hover: #2E7BFF;
            --brand-secondary: #C0C0C8;
            --brand-accent: #00F5FF;
            --bg-main: #050A18;
            --bg-surface: #0D142B;
            --bg-elevated: #161F3D;
            --text-primary: #E6EEFF;
            --text-secondary: #B0B9D1;
            --text-muted: #7A86A3;
            --text-link: #00F5FF;
            --btn-bg: #00F5FF;
            --btn-text: #050A18;
            --btn-hover-bg: #FFFFFF;
            --border-default: #1C264A;
            --border-brand: #00F5FF;
            --radius-sm: 4px;
            --radius-md: 8px;
            --radius-lg: 16px;
            --radius-pill: 9999px;
            --shadow-card: 0 8px 24px rgba(0, 0, 0, 0.5);
            --glow-cyan: 0 0 15px rgba(0, 245, 255, 0.6);
            --grad-brand: linear-gradient(135deg, #005BFF 0%, #00F5FF 100%);
            --grad-hero: radial-gradient(circle at center, #161F3D 0%, #050A18 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;
            background-color: var(--bg-main);
            color: var(--text-primary);
            padding-inline: 14px;
            padding-bottom: calc(72px + env(safe-area-inset-bottom, 0px));
            overflow-x: hidden;
        }

        h1, h2, h3 { font-family: 'Exo 2', sans-serif; color: var(--text-primary); margin-top: 0; }
        h1 { font-size: clamp(1.6rem, 6.5vw, 2.4rem); line-height: 1.2; letter-spacing: -0.02em; margin-bottom: 1rem; }
        h2 { font-size: clamp(1.3rem, 5.2vw, 1.8rem); line-height: 1.25; margin-top: 2.5rem; margin-bottom: 1.25rem; border-left: 4px solid var(--brand-accent); padding-left: 12px; }
        h3 { font-size: clamp(1.05rem, 4.2vw, 1.25rem); line-height: 1.3; margin-bottom: 0.75rem; }

        a { color: var(--text-link); text-decoration: none; transition: color 0.2s ease; }
        a:hover { color: #FFFFFF; }

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

        .btn-base {
            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;
            transition: all 0.3s ease;
            border: none;
            text-align: center;
            text-decoration: none;
        }

        .btn-primary {
            background: var(--btn-bg);
            color: var(--btn-text);
            box-shadow: var(--glow-cyan);
        }

        .btn-primary:hover {
            background: var(--btn-hover-bg);
            transform: translateY(-2px);
        }

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

        .btn-outline:hover {
            background: rgba(0, 245, 255, 0.1);
            box-shadow: var(--glow-cyan);
        }

        header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 16px 0;
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(5, 10, 24, 0.9);
            backdrop-filter: blur(10px);
        }

        .header-logo {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .header-logo strong {
            font-size: 16px;
            font-weight: normal;
        }

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

        .hero-section {
            padding: 40px 0;
            text-align: center;
            background: var(--grad-hero);
        }

        .hero-intro-text {
            color: var(--text-secondary);
            margin-bottom: 24px;
            max-width: 700px;
            margin-inline: auto;
        }

        .hero-tags {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 10px;
            margin-top: 20px;
        }

        .hero-tag {
            background: var(--bg-elevated);
            border: 1px solid var(--border-default);
            color: var(--text-secondary);
            padding: 4px 12px;
            border-radius: var(--radius-pill);
            font-size: 0.85rem;
        }

        .banner-wrapper {
            width: 100%;
            aspect-ratio: 2 / 1;
            overflow: hidden;
            border-radius: var(--radius-lg);
            margin-bottom: 30px;
        }

        .banner-wrapper img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .category-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 16px;
            margin-bottom: 40px;
        }

        .category-tile {
            background: var(--bg-surface);
            border: 1px solid var(--border-default);
            border-radius: var(--radius-lg);
            padding: 20px;
            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);
            transform: translateY(-5px);
            box-shadow: var(--shadow-card);
        }

        .category-tile i {
            font-size: 2rem;
            color: var(--brand-accent);
            margin-bottom: 8px;
        }

        .category-tile span {
            display: block;
            font-weight: 600;
            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;
        }

        .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(--glow-cyan);
        }

        .game-card img {
            aspect-ratio: 1 / 1;
            width: 100%;
            object-fit: cover;
        }

        .game-card-body {
            padding: 12px;
            text-align: center;
        }

        .game-card h3 {
            font-size: 1rem;
            margin: 0;
            color: var(--text-primary);
        }

        .facts-container {
            background: var(--bg-surface);
            border-radius: var(--radius-lg);
            padding: 24px;
            border: 1px solid var(--border-default);
            margin-bottom: 20px;
        }

        .freshness-notice {
            font-style: italic;
            color: var(--text-muted);
            font-size: 0.85rem;
            margin-bottom: 16px;
            display: block;
        }

        .facts-table {
            width: 100%;
            border-collapse: collapse;
        }

        .facts-table td {
            padding: 12px;
            border-bottom: 1px solid var(--border-default);
        }

        .facts-label {
            color: var(--text-secondary);
            font-weight: 500;
            width: 40%;
        }

        .facts-value {
            color: var(--text-primary);
            text-align: right;
        }

        .terms-link-wrapper {
            margin-top: 16px;
            text-align: center;
            font-size: 0.85rem;
        }

        .toc-nav {
            display: flex;
            overflow-x: auto;
            gap: 12px;
            padding: 16px 0;
            scrollbar-width: none;
            border-bottom: 1px solid var(--border-default);
            margin-bottom: 30px;
        }

        .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);
            font-size: 0.9rem;
            border: 1px solid var(--border-default);
        }

        .toc-link:hover {
            background: var(--brand-primary);
            color: #fff;
        }

        .promo-card {
            background: var(--bg-surface);
            border: 1px solid var(--border-default);
            border-radius: var(--radius-lg);
            padding: 24px;
            margin-bottom: 16px;
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .promo-card h3 { color: var(--brand-accent); }

        .usp-bar {
            display: grid;
            grid-template-columns: 1fr;
            gap: 16px;
            margin-bottom: 40px;
        }

        .usp-tile {
            background: var(--bg-elevated);
            padding: 20px;
            border-radius: var(--radius-lg);
            display: flex;
            align-items: flex-start;
            gap: 16px;
            border: 1px solid var(--border-default);
        }

        .usp-tile i {
            font-size: 1.5rem;
            color: var(--brand-accent);
            margin-top: 4px;
        }

        .usp-content strong {
            display: block;
            font-size: 1.1rem;
            margin-bottom: 4px;
        }

        .usp-content p {
            margin: 0;
            font-size: 0.9rem;
            color: var(--text-secondary);
        }

        .payment-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 16px;
        }

        .payment-card {
            background: var(--bg-surface);
            border: 1px solid var(--border-default);
            padding: 20px;
            border-radius: var(--radius-lg);
            text-align: center;
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 12px;
        }

        .payment-card i {
            font-size: 2rem;
            color: var(--text-primary);
        }

        .payment-card p {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin: 0;
        }

        .guide-step {
            display: flex;
            gap: 20px;
            background: var(--bg-surface);
            padding: 20px;
            border-radius: var(--radius-lg);
            margin-bottom: 16px;
            border: 1px solid var(--border-default);
            align-items: center;
        }

        .step-number {
            background: var(--grad-brand);
            color: var(--btn-text);
            width: 40px;
            height: 40px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            flex-shrink: 0;
        }

        .step-content h3 { margin-bottom: 8px; }
        .step-content a { color: inherit; }

        .download-panel {
            background: var(--bg-elevated);
            padding: 32px 20px;
            border-radius: var(--radius-lg);
            text-align: center;
            border: 1px solid var(--brand-accent);
        }

        .player-guide-item {
            background: var(--bg-surface);
            padding: 20px;
            border-radius: var(--radius-lg);
            margin-bottom: 16px;
            border: 1px solid var(--border-default);
        }

        .guide-meta {
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-bottom: 12px;
            display: block;
        }

        .announcement-item {
            background: var(--bg-surface);
            padding: 20px;
            border-radius: var(--radius-lg);
            margin-bottom: 16px;
            border-left: 4px solid var(--brand-primary);
            display: flex;
            gap: 16px;
        }

        .announcement-item i {
            font-size: 1.2rem;
            color: var(--brand-accent);
        }

        .announcement-date {
            display: block;
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-top: 8px;
        }

        .faq-item {
            background: var(--bg-surface);
            margin-bottom: 12px;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-default);
        }

        .faq-item summary {
            padding: 16px;
            cursor: pointer;
            list-style: none;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .faq-item summary h3 {
            font-size: 1.05rem;
            margin: 0;
            color: var(--text-primary);
        }

        .faq-answer {
            padding: 0 16px 16px 16px;
            color: var(--text-secondary);
            font-size: 0.95rem;
        }

        .about-section {
            background: var(--bg-surface);
            padding: 32px 20px;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-default);
        }

        .team-card {
            margin-top: 24px;
            padding: 20px;
            background: var(--bg-main);
            border-radius: var(--radius-md);
            border: 1px dashed var(--border-default);
        }

        .security-section {
            padding: 32px 0;
            text-align: center;
        }

        .security-links {
            display: flex;
            justify-content: center;
            gap: 20px;
            margin: 20px 0;
            flex-wrap: wrap;
        }

        footer {
            margin-top: 60px;
            padding: 40px 0 100px 0;
            background: var(--bg-surface);
            border-top: 1px solid var(--border-default);
        }

        .footer-sitemap {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 12px;
            margin-bottom: 32px;
            text-align: center;
        }

        .footer-contact {
            text-align: center;
            margin-bottom: 24px;
            padding-bottom: 24px;
            border-bottom: 1px solid var(--border-default);
        }

        .footer-legal {
            text-align: center;
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        .navigator {
            position: fixed;
            inset-inline: 0;
            bottom: 0;
            height: 72px;
            background: var(--bg-surface);
            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 {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 4px;
            color: var(--text-secondary);
            font-size: 0.75rem;
        }

        .nav-item i { font-size: 1.2rem; }

        .utility-link {
            display: block;
            text-align: center;
            margin-top: 12px;
            font-weight: 600;
            color: var(--brand-accent);
        }

        section {
            content-visibility: auto;
            contain-intrinsic-size: 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(3, 1fr); }
            .payment-grid { grid-template-columns: repeat(4, 1fr); }
            .usp-bar { grid-template-columns: repeat(2, 1fr); }
            .navigator { position: static; display: none; }
            footer { padding-bottom: 40px; }
        }

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