:root {
            --color-primary: #0A2540;
            --color-primary-hover: #163A5F;
            --color-secondary: #C0C0C0;
            --color-secondary-hover: #E0E0E0;
            --color-accent: #00F2FF;
            --color-bg-main: #040D1A;
            --color-bg-surface: #0B172B;
            --color-bg-elevated: #14223D;
            --color-text-primary: #E6F1FF;
            --color-text-secondary: #B0C4DE;
            --color-text-muted: #708090;
            --color-btn-bg: #00F2FF;
            --color-btn-text: #040D1A;
            --color-btn-hover: #70EFFF;
            --color-border: #1C2D4A;
            --color-border-strong: #2D4163;
            --radius-sm: 2px;
            --radius-md: 4px;
            --radius-lg: 8px;
            --radius-pill: 9999px;
            --shadow-card: 0 4px 0 #000000;
            --shadow-glow: 0 0 15px rgba(0, 242, 255, 0.4);
            --grad-brand: linear-gradient(135deg, #0A2540 0%, #00F2FF 100%);
            --grad-hero: linear-gradient(180deg, #0B172B 0%, #040D1A 100%);
            --grad-btn: linear-gradient(to bottom, #00F2FF 0%, #00C2D1 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;
            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);
        }
        h1, h2, h3 { font-family: 'Oswald', sans-serif; letter-spacing: -0.02em; line-height: 1.2; color: var(--color-text-primary); }
        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: 2.5rem; margin-bottom: 1.25rem; border-left: 4px solid var(--color-accent); padding-left: 1rem; }
        h3 { font-size: clamp(1.05rem, 4.2vw, 1.25rem); margin-bottom: 0.75rem; }

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

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

        .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;
            text-align: center;
            border: none;
            transition: transform 0.1s, filter 0.2s;
            background: var(--grad-btn);
            color: var(--color-btn-text);
            text-decoration: none;
        }
        .btn:hover { filter: brightness(1.1); transform: translateY(-1px); }
        .btn-secondary { background: var(--color-bg-elevated); color: var(--color-text-primary); border: 1px solid var(--color-border-strong); }
        .btn-full { width: 100%; box-sizing: border-box; }

        header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 1rem 0;
            border-bottom: 1px solid var(--color-border);
        }
        .header-logo { display: flex; align-items: center; gap: 8px; text-decoration: none; color: inherit; }
        .header-logo strong { font-size: 16px; font-weight: normal; }
        .header-auth { display: flex; gap: 10px; }

        .hero-section {
            text-align: center;
            padding: 2rem 0;
            background: var(--grad-hero);
        }
        .hero-intro { max-width: 800px; margin: 0 auto 2rem; color: var(--color-text-secondary); }
        .hero-tags { display: flex; justify-content: center; gap: 8px; flex-wrap: wrap; margin-top: 1.5rem; }
        .hero-tag {
            background: var(--color-bg-elevated);
            border: 1px solid var(--color-border-strong);
            padding: 4px 12px;
            border-radius: var(--radius-pill);
            font-size: 0.875rem;
            color: var(--color-text-secondary);
        }

        .banner-link { display: block; overflow: hidden; border-radius: var(--radius-lg); }
        .banner-img { aspect-ratio: 2 / 1; width: 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);
            padding: 1.5rem 1rem;
            border-radius: var(--radius-lg);
            text-align: center;
            transition: border-color 0.2s;
        }
        .category-tile:hover { border-color: var(--color-accent); }
        .category-tile i { font-size: 2rem; color: var(--color-accent); margin-bottom: 10px; }
        .category-tile strong { display: block; margin-bottom: 5px; }
        .category-tile span { font-size: 0.875rem; color: var(--color-text-secondary); }

        .game-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 16px;
            margin-bottom: 2rem;
        }
        .game-card {
            background: var(--color-bg-surface);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--color-border);
            transition: transform 0.2s;
            text-decoration: none;
            color: inherit;
        }
        .game-card:hover { transform: translateY(-5px); border-color: var(--color-accent); }
        .game-card img { aspect-ratio: 1 / 1; width: 100%; object-fit: cover; }
        .game-card h3 { padding: 12px; margin: 0; font-size: 1rem; text-align: center; }

        .facts-wrapper { background: var(--color-bg-surface); border-radius: var(--radius-lg); padding: 1.5rem; border: 1px solid var(--color-border); }
        .freshness-text { font-style: italic; color: var(--color-text-muted); font-size: 0.875rem; margin-bottom: 1rem; display: block; }
        .facts-table { width: 100%; border-collapse: collapse; margin-bottom: 1rem; }
        .facts-table td { padding: 12px; border-bottom: 1px solid var(--color-border); }
        .facts-table td:first-child { color: var(--color-text-secondary); font-weight: 500; width: 40%; }
        .facts-link { display: block; text-align: center; font-size: 0.875rem; color: var(--color-text-muted); }

        .toc-nav {
            display: flex;
            overflow-x: auto;
            gap: 10px;
            padding: 1rem 0;
            margin: 2rem 0;
            scrollbar-width: none;
        }
        .toc-nav::-webkit-scrollbar { display: none; }
        .toc-link {
            background: var(--color-bg-elevated);
            white-space: nowrap;
            padding: 8px 16px;
            border-radius: var(--radius-pill);
            font-size: 0.875rem;
            border: 1px solid var(--color-border-strong);
        }

        .promo-card {
            background: var(--color-bg-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            padding: 1.5rem;
            margin-bottom: 1rem;
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }
        .promo-card h3 { color: var(--color-accent); }

        .usp-grid { display: grid; grid-template-columns: 1fr; gap: 1rem; margin: 2rem 0; }
        .usp-tile {
            display: flex;
            gap: 1rem;
            background: var(--color-bg-elevated);
            padding: 1rem;
            border-radius: var(--radius-lg);
            align-items: flex-start;
        }
        .usp-tile i { color: var(--color-accent); font-size: 1.25rem; margin-top: 4px; }

        .payment-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
        .payment-card {
            background: var(--color-bg-surface);
            border: 1px solid var(--color-border);
            padding: 1rem;
            border-radius: var(--radius-lg);
            text-align: center;
        }
        .payment-card i { font-size: 1.5rem; color: var(--color-accent); margin-bottom: 8px; }
        .payment-card strong { display: block; margin-bottom: 5px; font-size: 0.9rem; }
        .payment-card p { font-size: 0.75rem; color: var(--color-text-secondary); margin: 0; }

        .guide-step {
            display: flex;
            gap: 1rem;
            padding: 1.5rem 0;
            border-bottom: 1px solid var(--color-border);
        }
        .step-badge {
            min-width: 32px;
            height: 32px;
            background: var(--color-accent);
            color: var(--color-bg-main);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
        }
        .step-content h3 { margin: 0 0 0.5rem 0; }
        .step-content a { color: inherit; }

        .download-panel {
            background: var(--color-bg-surface);
            padding: 2rem;
            border-radius: var(--radius-lg);
            text-align: center;
            border: 1px solid var(--color-border);
        }

        .player-guide-item {
            background: var(--color-bg-elevated);
            padding: 1.25rem;
            border-radius: var(--radius-lg);
            margin-bottom: 1rem;
        }
        .guide-meta { font-size: 0.75rem; color: var(--color-text-muted); margin-bottom: 0.5rem; display: block; }

        .announcement-item {
            display: flex;
            gap: 1rem;
            padding: 1rem;
            border-bottom: 1px solid var(--color-border);
        }
        .announcement-item i { color: var(--color-accent); }
        .announcement-date { font-size: 0.75rem; color: var(--color-text-muted); display: block; margin-top: 5px; }

        .faq-item { background: var(--color-bg-surface); margin-bottom: 1rem; border-radius: var(--radius-lg); border: 1px solid var(--color-border); }
        .faq-item summary { padding: 1rem; cursor: pointer; list-style: none; }
        .faq-item summary h3 { margin: 0; font-size: 1.1rem; }
        .faq-item p { padding: 0 1rem 1rem; color: var(--color-text-secondary); font-size: 0.9rem; }

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

        footer {
            margin-top: 3rem;
            padding-top: 2rem;
            border-top: 1px solid var(--color-border);
            text-align: center;
        }
        .footer-sitemap {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 10px;
            margin-bottom: 2rem;
            text-align: center;
        }
        .footer-sitemap a { font-size: 0.875rem; color: var(--color-text-secondary); }
        .footer-contact { margin-bottom: 1.5rem; color: var(--color-text-secondary); }
        .footer-legal { font-size: 0.75rem; color: var(--color-text-muted); line-height: 1.4; }

        .navigator {
            position: fixed;
            inset-inline: 0;
            bottom: 0;
            background: var(--color-bg-surface);
            border-top: 1px solid var(--color-border);
            display: flex;
            justify-content: space-around;
            padding: 10px 0 calc(10px + env(safe-area-inset-bottom));
            z-index: 1000;
        }
        .nav-item { text-align: center; color: var(--color-text-secondary); text-decoration: none; font-size: 0.7rem; }
        .nav-item i { display: block; font-size: 1.25rem; margin-bottom: 4px; }

        .util-link { color: var(--color-accent); font-weight: 500; text-decoration: underline; }

        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); }
            .usp-grid { grid-template-columns: repeat(2, 1fr); }
            .footer-sitemap { grid-template-columns: repeat(5, 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); }
        }