:root {
            --color-primary: #0D2C54;
            --color-primary-hover: #16417A;
            --color-secondary: #C0C0C8;
            --color-secondary-hover: #E2E2E9;
            --color-accent: #00F5FF;
            --color-bg-main: #050B18;
            --color-bg-surface: #0B1529;
            --color-bg-elevated: #13213D;
            --color-text-primary: #E6EBF5;
            --color-text-secondary: #B0B9C9;
            --color-text-muted: #7A869A;
            --color-btn-bg: #00F5FF;
            --color-btn-text: #050B18;
            --color-btn-hover-bg: #70F9FF;
            --color-border-default: #1C2D4D;
            --color-border-brand: #00F5FF;
            --radius-sm: 4px;
            --radius-md: 12px;
            --radius-lg: 24px;
            --radius-pill: 9999px;
            --shadow-card: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
            --shadow-glow: 0 0 15px rgba(0, 245, 255, 0.4);
            --font-headings: 'Be Vietnam Pro', sans-serif;
            --font-body: 'Be Vietnam Pro', sans-serif;
        }
        html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
        body {
            margin: 0;
            font-family: var(--font-body);
            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(--color-bg-main);
            color: var(--color-text-primary);
        }
        img { max-width: 100%; height: auto; display: block; }
        a { color: var(--color-accent); text-decoration: none; transition: color 0.2s; }
        a:hover { color: var(--color-btn-hover-bg); }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-height: 44px;
            min-inline-size: 44px;
            padding: 12px 18px;
            border-radius: var(--radius-md);
            font-weight: 600;
            cursor: pointer;
            border: none;
            transition: transform 0.2s, background 0.2s;
            text-align: center;
        }
        .btn-primary {
            background: linear-gradient(180deg, #00F5FF 0%, #00C2CC 100%);
            color: var(--color-btn-text);
        }
        .btn-primary:hover { transform: translateY(-2px); background: var(--color-btn-hover-bg); }
        .btn-outline {
            background: transparent;
            border: 1px solid var(--color-accent);
            color: var(--color-accent);
        }
        .btn-outline:hover { background: rgba(0, 245, 255, 0.1); }
        h1 { font-family: var(--font-headings); font-size: clamp(1.6rem, 6.5vw, 2.4rem); line-height: 1.2; margin: 0 0 1rem 0; color: var(--color-text-primary); }
        h2 { font-family: var(--font-headings); font-size: clamp(1.3rem, 5.2vw, 1.8rem); line-height: 1.25; margin-top: 2.5rem; margin-bottom: 1.25rem; color: var(--color-text-primary); }
        h3 { font-family: var(--font-headings); font-size: clamp(1.05rem, 4.2vw, 1.25rem); line-height: 1.3; margin: 0 0 0.5rem 0; color: var(--color-text-primary); }
        header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 1rem 0;
            border-bottom: 1px solid var(--color-border-default);
            margin-bottom: 2rem;
        }
        .header-logo-link { display: flex; align-items: center; gap: 8px; }
        .header-logo-link strong { font-size: 16px; font-weight: normal; color: var(--color-text-primary); }
        .header-actions { display: flex; gap: 12px; }
        .hero-section { text-align: center; padding: 2rem 0; }
        .hero-intro-text { max-width: 800px; margin: 0 auto 2rem auto; color: var(--color-text-secondary); }
        .hero-cta-full { width: 100%; display: block; margin-bottom: 2rem; }
        .hero-tags { display: flex; flex-wrap: wrap; justify-content: center; gap: 8px; }
        .hero-tag-pill { background: var(--color-bg-elevated); border: 1px solid var(--color-border-default); padding: 4px 12px; border-radius: var(--radius-pill); font-size: 0.85rem; color: var(--color-text-secondary); }
        .banner-link { display: block; width: 100%; aspect-ratio: 2 / 1; overflow: hidden; border-radius: var(--radius-lg); }
        .banner-img { width: 100%; height: 100%; object-fit: cover; }
        .category-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; margin: 2rem 0; }
        .category-tile {
            background: var(--color-bg-surface);
            border: 1px solid var(--color-border-default);
            border-radius: var(--radius-md);
            padding: 1.5rem;
            text-align: center;
            transition: border-color 0.3s, box-shadow 0.3s;
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 8px;
        }
        .category-tile:hover { border-color: var(--color-accent); box-shadow: var(--shadow-glow); }
        .category-tile i { font-size: 2rem; color: var(--color-accent); margin-bottom: 0.5rem; }
        .category-tile span { display: block; font-weight: 600; font-size: 1.1rem; }
        .category-tile p { font-size: 0.85rem; color: var(--color-text-muted); margin: 0; }
        .game-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; margin: 1.5rem 0; }
        .game-card {
            background: var(--color-bg-surface);
            border: 1px solid var(--color-border-default);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: transform 0.2s;
            text-decoration: none;
        }
        .game-card:hover { transform: translateY(-5px); border-color: var(--color-accent); }
        .game-card img { width: 100%; aspect-ratio: 1 / 1; object-fit: cover; }
        .game-card-body { padding: 12px; text-align: center; }
        .game-card-body h3 { font-size: 1rem; margin: 0; color: var(--color-text-primary); }
        .facts-container { background: var(--color-bg-surface); border: 1px solid var(--color-border-default); border-radius: var(--radius-md); padding: 1.5rem; margin: 1.5rem 0; }
        .facts-notice { font-style: italic; color: var(--color-text-muted); font-size: 0.85rem; margin-bottom: 1rem; display: block; }
        .facts-table { width: 100%; border-collapse: collapse; }
        .facts-table tr { border-bottom: 1px solid var(--color-border-default); }
        .facts-table td { padding: 12px 8px; font-size: 0.9rem; }
        .facts-label { color: var(--color-text-secondary); font-weight: 500; width: 40%; }
        .facts-value { color: var(--color-text-primary); text-align: right; }
        .facts-footer-link { display: block; text-align: center; margin-top: 1rem; font-size: 0.85rem; color: var(--color-text-muted); }
        .toc-nav {
            display: flex;
            overflow-x: auto;
            gap: 12px;
            padding: 1rem 0;
            scrollbar-width: none;
            border-bottom: 1px solid var(--color-border-default);
            margin-bottom: 2rem;
        }
        .toc-nav::-webkit-scrollbar { display: none; }
        .toc-link {
            background: var(--color-bg-elevated);
            padding: 8px 16px;
            border-radius: var(--radius-pill);
            white-space: nowrap;
            font-size: 0.9rem;
            border: 1px solid var(--color-border-default);
        }
        .promo-grid { display: flex; flex-direction: column; gap: 16px; margin: 1.5rem 0; }
        .promo-card {
            background: var(--color-bg-surface);
            border: 1px solid var(--color-border-default);
            border-radius: var(--radius-md);
            padding: 1.5rem;
            position: relative;
            overflow: hidden;
        }
        .promo-card::before {
            content: "";
            position: absolute;
            top: 0; right: 0; width: 4px; height: 100%;
            background: var(--color-accent);
        }
        .promo-card h3 { margin-bottom: 0.75rem; }
        .promo-card p { color: var(--color-text-secondary); margin-bottom: 1.5rem; font-size: 0.95rem; }
        .usp-bar { display: flex; flex-direction: column; gap: 16px; margin: 2rem 0; }
        .usp-tile {
            background: var(--color-bg-surface);
            border: 1px solid var(--color-border-default);
            border-radius: var(--radius-md);
            padding: 1.25rem;
            display: flex;
            gap: 16px;
            align-items: flex-start;
        }
        .usp-tile i { font-size: 1.5rem; color: var(--color-accent); margin-top: 4px; }
        .usp-tile strong { display: block; font-size: 1.1rem; margin-bottom: 4px; }
        .usp-tile p { margin: 0; font-size: 0.9rem; color: var(--color-text-secondary); }
        .payment-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; margin: 1.5rem 0; }
        .payment-card {
            background: var(--color-bg-surface);
            border: 1px solid var(--color-border-default);
            border-radius: var(--radius-md);
            padding: 1rem;
            text-align: center;
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 8px;
        }
        .payment-card i { font-size: 1.5rem; color: var(--color-accent); }
        .payment-card strong { display: block; font-size: 0.95rem; }
        .payment-card p { font-size: 0.8rem; color: var(--color-text-muted); margin: 0; }
        .guide-steps { display: flex; flex-direction: column; gap: 20px; margin: 1.5rem 0; }
        .step-item { display: flex; gap: 16px; align-items: flex-start; }
        .step-number {
            min-width: 32px; height: 32px;
            background: var(--color-accent);
            color: var(--color-btn-text);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            flex-shrink: 0;
        }
        .step-content h3 { margin: 0 0 8px 0; }
        .step-content h3 a { color: inherit; }
        .step-content p { margin: 0; font-size: 0.9rem; color: var(--color-text-secondary); }
        .download-panel { background: var(--color-bg-surface); border: 1px solid var(--color-border-default); border-radius: var(--radius-lg); padding: 2rem; text-align: center; margin: 2rem 0; }
        .download-panel p { color: var(--color-text-secondary); margin-bottom: 1.5rem; }
        .player-guides { display: flex; flex-direction: column; gap: 20px; margin: 1.5rem 0; }
        .guide-card { border-left: 3px solid var(--color-accent); background: var(--color-bg-surface); padding: 1.25rem; border-radius: 0 var(--radius-md) var(--radius-md) 0; }
        .guide-card .meta { font-size: 0.8rem; color: var(--color-text-muted); margin-bottom: 8px; display: block; }
        .announcement-list { display: flex; flex-direction: column; gap: 12px; margin: 1.5rem 0; }
        .announcement-item {
            background: var(--color-bg-surface);
            border: 1px solid var(--color-border-default);
            border-radius: var(--radius-md);
            padding: 1rem;
            display: flex;
            gap: 12px;
        }
        .announcement-item i { color: var(--color-accent); margin-top: 4px; }
        .announcement-body h3 { font-size: 1.05rem; margin: 0 0 4px 0; }
        .announcement-body p { margin: 0 0 8px 0; font-size: 0.9rem; color: var(--color-text-secondary); }
        .announcement-date { font-size: 0.8rem; color: var(--color-text-muted); }
        .faq-section { margin: 2rem 0; }
        .faq-item { background: var(--color-bg-surface); border: 1px solid var(--color-border-default); border-radius: var(--radius-md); margin-bottom: 12px; }
        .faq-item summary { padding: 16px; cursor: pointer; list-style: none; }
        .faq-item summary::-webkit-details-marker { display: none; }
        .faq-item summary h3 { margin: 0; font-size: 1.05rem; }
        .faq-item p { padding: 0 16px 16px 16px; color: var(--color-text-secondary); font-size: 0.95rem; margin: 0; }
        .about-panel { background: var(--color-bg-surface); border: 1px solid var(--color-border-default); border-radius: var(--radius-lg); padding: 2rem; margin: 2rem 0; }
        .team-card { background: var(--color-bg-elevated); border: 1px solid var(--color-border-brand); border-radius: var(--radius-md); padding: 1.5rem; margin-top: 2rem; }
        .security-section { background: var(--color-bg-surface); border: 1px solid var(--color-border-default); border-radius: var(--radius-lg); padding: 2rem; margin: 2rem 0; }
        .security-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; margin-bottom: 1.5rem; }
        .security-item { padding: 1rem; background: var(--color-bg-main); border-radius: var(--radius-md); font-size: 0.9rem; }
        .security-links { display: flex; flex-wrap: wrap; gap: 12px; margin: 1.5rem 0; }
        .security-links a { background: var(--color-bg-elevated); padding: 8px 12px; border-radius: var(--radius-sm); font-size: 0.85rem; border: 1px solid var(--color-border-default); }
        footer {
            border-top: 1px solid var(--color-border-default);
            padding: 2rem 0;
            margin-top: 3rem;
            text-align: center;
        }
        .footer-sitemap {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 12px;
            margin-bottom: 2rem;
            text-align: left;
        }
        .footer-sitemap a { font-size: 0.85rem; color: var(--color-text-secondary); }
        .footer-contact { margin-bottom: 1.5rem; font-size: 0.9rem; color: var(--color-text-secondary); }
        .footer-legal { font-size: 0.8rem; color: var(--color-text-muted); line-height: 1.5; }
        .navigator {
            position: fixed;
            inset-inline: 0;
            bottom: 0;
            height: 72px;
            background: rgba(11, 21, 41, 0.95);
            backdrop-filter: blur(10px);
            border-top: 1px solid var(--color-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;
            justify-content: center;
            color: var(--color-text-secondary);
            text-decoration: none;
            font-size: 0.75rem;
            gap: 4px;
        }
        .nav-item i { font-size: 1.25rem; }
        .nav-item:hover { color: var(--color-accent); }
        .util-link { color: var(--color-text-muted); text-decoration: underline; font-size: 0.9rem; }
        
        @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(2, 1fr); }
            .payment-grid { grid-template-columns: repeat(4, 1fr); }
            .navigator { position: static; height: auto; padding: 0; display: none; }
            .footer-sitemap { grid-template-columns: repeat(5, 1fr); }
        }
        @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; }