:root {
            --p-primary: #0A2540;
            --p-primary-hover: #143A61;
            --p-secondary: #A3B1C6;
            --p-accent: #00F2FF;
            --p-bg-main: #050B14;
            --p-bg-surface: #0D1726;
            --p-bg-elevated: #162339;
            --p-text-primary: #E6EBF2;
            --p-text-secondary: #A0AEC0;
            --p-text-muted: #718096;
            --p-btn-bg: #00F2FF;
            --p-btn-text: #050B14;
            --p-btn-hover: #70F9FF;
            --p-border: #1E2D44;
            --p-border-brand: rgba(0, 242, 255, 0.4);
            --p-radius-sm: 4px;
            --p-radius-md: 12px;
            --p-radius-lg: 24px;
            --p-radius-pill: 9999px;
            --p-shadow-card: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
            --p-glow: 0 0 15px rgba(0, 242, 255, 0.6);
        }

        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;
            color: var(--p-text-primary);
            background-color: var(--p-bg-main);
            padding-inline: 14px;
            padding-bottom: calc(72px + env(safe-area-inset-bottom, 0px));
            overflow-x: hidden;
        }
        img { max-width: 100%; height: auto; display: block; }
        a { color: var(--p-accent); text-decoration: none; transition: color 0.3s ease; }
        a:hover { color: var(--p-btn-hover); }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-height: 44px;
            min-inline-size: 44px;
            padding: 12px 24px;
            border-radius: var(--p-radius-md);
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            border: none;
            text-align: center;
        }
        .btn-primary {
            background: linear-gradient(180deg, #00F2FF 0%, #00C2D1 100%);
            color: var(--p-btn-text);
        }
        .btn-primary:hover { background: var(--p-btn-hover); transform: translateY(-2px); box-shadow: var(--p-glow); }
        .btn-outline {
            background: transparent;
            border: 1px solid var(--p-accent);
            color: var(--p-accent);
        }
        .btn-outline:hover { background: rgba(0, 242, 255, 0.1); }
        .btn-full { width: 100%; display: flex; }

        header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 16px 0;
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(5, 11, 20, 0.9);
            backdrop-filter: blur(10px);
        }
        .header-logo { display: flex; align-items: center; gap: 8px; }
        .header-logo strong { font-size: 16px; font-weight: normal; color: var(--p-text-primary); }
        .header-auth { display: flex; gap: 12px; }

        main { width: 100%; }
        .section-container {
            padding: 40px 0;
            content-visibility: auto;
            contain-intrinsic-size: 1px 800px;
        }
        h1 { font-size: clamp(1.6rem, 6.5vw, 2.4rem); line-height: 1.2; margin-bottom: 20px; color: var(--p-text-primary); }
        h2 { font-size: clamp(1.3rem, 5.2vw, 1.8rem); line-height: 1.25; margin-top: 2rem; margin-bottom: 24px; color: var(--p-text-primary); }
        h3 { font-size: clamp(1.05rem, 4.2vw, 1.25rem); line-height: 1.3; margin-bottom: 12px; color: var(--p-text-primary); }

        .hero-wrapper { text-align: center; padding: 40px 0; }
        .hero-intro { max-width: 800px; margin: 0 auto 30px; color: var(--p-text-secondary); }
        .hero-tags { display: flex; flex-wrap: wrap; justify-content: center; gap: 8px; margin-top: 24px; }
        .hero-tag {
            background: var(--p-bg-elevated);
            border: 1px solid var(--p-border-brand);
            padding: 4px 12px;
            border-radius: var(--p-radius-pill);
            font-size: 0.85rem;
            color: var(--p-accent);
        }

        .banner-link { display: block; width: 100%; margin: 20px 0; }
        .banner-img { width: 100%; aspect-ratio: 2 / 1; object-fit: cover; border-radius: var(--p-radius-lg); }

        .category-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 12px;
            margin-bottom: 40px;
        }
        .category-tile {
            background: var(--p-bg-surface);
            border: 1px solid var(--p-border);
            padding: 20px;
            border-radius: var(--p-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(--p-accent); background: var(--p-bg-elevated); }
        .category-tile i { font-size: 2rem; color: var(--p-accent); }
        .category-tile span { display: block; font-weight: 600; color: var(--p-text-primary); }
        .category-tile p { font-size: 0.85rem; color: var(--p-text-muted); margin: 0; }

        .game-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 16px;
        }
        .game-card {
            background: var(--p-bg-surface);
            border-radius: var(--p-radius-md);
            overflow: hidden;
            border: 1px solid var(--p-border);
            transition: transform 0.3s ease;
        }
        .game-card:hover { transform: translateY(-5px); border-color: var(--p-accent); }
        .game-card img { width: 100%; aspect-ratio: 1 / 1; object-fit: cover; }
        .game-card h3 { padding: 12px; margin: 0; font-size: 1rem; text-align: center; }

        .fact-table { width: 100%; border-collapse: collapse; margin: 20px 0; background: var(--p-bg-surface); border-radius: var(--p-radius-md); overflow: hidden; }
        .fact-table td { padding: 12px 16px; border-bottom: 1px solid var(--p-border); }
        .fact-table td:first-child { font-weight: 600; color: var(--p-text-secondary); width: 40%; }
        .fact-table td:last-child { color: var(--p-text-primary); }
        .freshness-notice { font-style: italic; font-size: 0.85rem; color: var(--p-text-muted); margin-bottom: 15px; }
        .terms-link { display: block; text-align: center; margin-top: 15px; font-size: 0.85rem; color: var(--p-text-muted); }

        .toc-nav {
            display: flex;
            overflow-x: auto;
            gap: 12px;
            padding: 10px 0;
            margin-bottom: 30px;
            scrollbar-width: none;
        }
        .toc-nav::-webkit-scrollbar { display: none; }
        .toc-link {
            white-space: nowrap;
            background: var(--p-bg-surface);
            padding: 8px 16px;
            border-radius: var(--p-radius-pill);
            border: 1px solid var(--p-border);
            font-size: 0.9rem;
        }

        .promo-card {
            background: var(--p-bg-elevated);
            border: 1px solid var(--p-border-brand);
            padding: 24px;
            border-radius: var(--p-radius-lg);
            margin-bottom: 20px;
            backdrop-filter: blur(10px);
        }

        .usp-grid { display: grid; grid-template-columns: 1fr; gap: 16px; }
        .usp-tile {
            background: var(--p-bg-surface);
            padding: 20px;
            border-radius: var(--p-radius-md);
            display: flex;
            gap: 16px;
            align-items: flex-start;
            border: 1px solid var(--p-border);
        }
        .usp-tile i { font-size: 1.5rem; color: var(--p-accent); margin-top: 4px; }
        .usp-content strong { display: block; margin-bottom: 4px; color: var(--p-text-primary); }
        .usp-content p { margin: 0; font-size: 0.9rem; color: var(--p-text-secondary); }

        .step-list { display: grid; grid-template-columns: 1fr; gap: 20px; }
        .step-item {
            display: flex;
            gap: 16px;
            background: var(--p-bg-surface);
            padding: 20px;
            border-radius: var(--p-radius-md);
            align-items: center;
        }
        .step-badge {
            min-width: 40px;
            height: 40px;
            background: var(--p-accent);
            color: var(--p-btn-text);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 1.2rem;
        }
        .step-item h3 a { color: inherit; text-decoration: none; }

        .payment-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 12px;
        }
        .payment-card {
            background: var(--p-bg-surface);
            padding: 16px;
            border-radius: var(--p-radius-md);
            border: 1px solid var(--p-border);
            text-align: center;
        }
        .payment-card i { font-size: 1.5rem; color: var(--p-accent); margin-bottom: 8px; }
        .payment-card strong { display: block; margin-bottom: 8px; font-size: 0.95rem; }
        .payment-card p { font-size: 0.8rem; color: var(--p-text-muted); margin: 0; }

        .guide-item {
            background: var(--p-bg-surface);
            padding: 20px;
            border-radius: var(--p-radius-md);
            margin-bottom: 16px;
            border-left: 4px solid var(--p-accent);
        }
        .guide-meta { font-size: 0.8rem; color: var(--p-text-muted); margin-bottom: 10px; display: block; }

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

        .faq-item { margin-bottom: 12px; background: var(--p-bg-surface); border-radius: var(--p-radius-md); overflow: hidden; }
        .faq-item summary { padding: 16px; cursor: pointer; font-weight: 600; outline: none; }
        .faq-item p { padding: 0 16px 16px; color: var(--p-text-secondary); margin: 0; }

        .trust-card {
            background: var(--p-bg-elevated);
            padding: 24px;
            border-radius: var(--p-radius-lg);
            border: 1px solid var(--p-border);
            margin-top: 30px;
        }

        footer {
            background: var(--p-bg-surface);
            padding: 40px 0 20px;
            margin-top: 40px;
            border-top: 1px solid var(--p-border);
        }
        .footer-sitemap {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 12px;
            margin-bottom: 30px;
        }
        .footer-sitemap a { font-size: 0.85rem; color: var(--p-text-secondary); }
        .footer-contact { text-align: center; margin-bottom: 20px; font-size: 0.9rem; }
        .footer-legal { text-align: center; font-size: 0.8rem; color: var(--p-text-muted); line-height: 1.4; }

        .navigator {
            position: fixed;
            inset-inline: 0;
            bottom: 0;
            height: 72px;
            background: var(--p-bg-surface);
            border-top: 1px solid var(--p-border);
            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;
            color: var(--p-text-secondary);
            font-size: 0.75rem;
            text-decoration: none;
        }
        .nav-item i { font-size: 1.2rem; }
        .nav-item:hover { color: var(--p-accent); }

        .utility-link { text-align: center; display: block; margin-top: 15px; 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(3, 1fr); }
            .payment-grid { grid-template-columns: repeat(4, 1fr); }
            .step-list { grid-template-columns: repeat(2, 1fr); }
            .navigator { display: none; }
        }

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