:root {
            --color-primary: #0A192F;
            --color-primary-hover: #112240;
            --color-secondary: #C0C0C0;
            --color-secondary-hover: #E0E0E0;
            --color-accent: #00F0FF;
            --color-bg-main: #050B18;
            --color-bg-surface: #0D1628;
            --color-bg-elevated: #15213A;
            --color-text-primary: #E6F1FF;
            --color-text-secondary: #B0B8C1;
            --color-text-muted: #7C8794;
            --color-text-link: #00F0FF;
            --color-btn-bg: #00F0FF;
            --color-btn-text: #050B18;
            --color-border: #1C2D4D;
            --color-border-strong: #2A3F63;
            --radius-sm: 2px;
            --radius-md: 4px;
            --radius-lg: 8px;
            --radius-pill: 9999px;
            --shadow-card: 0 4px 0 #000000;
            --shadow-elevated: 0 8px 16px rgba(0, 0, 0, 0.5);
        }

        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; margin: 0; }
        h1 { font-size: clamp(1.6rem, 6.5vw, 2.4rem); margin-bottom: 1rem; color: var(--color-accent); }
        h2 { font-size: clamp(1.3rem, 5.2vw, 1.8rem); margin-top: 2rem; margin-bottom: 1.25rem; border-left: 4px solid var(--color-accent); padding-left: 12px; }
        h3 { font-size: clamp(1.05rem, 4.2vw, 1.25rem); margin-bottom: 0.75rem; }

        a { color: var(--color-text-link); text-decoration: none; transition: color 0.2s; }
        a:hover { color: #70F9FF; }

        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 18px;
            border-radius: var(--radius-md);
            font-weight: 600;
            cursor: pointer;
            text-align: center;
            border: none;
            transition: transform 0.1s, background-color 0.2s;
            box-shadow: var(--shadow-card);
        }
        .btn-primary { background: var(--color-btn-bg); color: var(--color-btn-text); }
        .btn-primary:hover { background: #70F9FF; transform: translateY(-2px); }
        .btn-secondary { background: var(--color-bg-elevated); color: var(--color-text-primary); border: 1px solid var(--color-border-strong); }
        .btn-secondary:hover { background: var(--color-primary-hover); }
        .btn-block { width: 100%; display: flex; }

        header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 12px 0;
            border-bottom: 1px solid var(--color-border);
        }
        .header-brand { display: flex; align-items: center; gap: 8px; }
        .header-brand strong { font-size: 16px; font-weight: 400; color: var(--color-text-primary); }
        .header-actions { display: flex; gap: 8px; }

        main { width: 100%; }

        .hero-section { text-align: center; padding: 2rem 0; }
        .hero-intro { margin-bottom: 1.5rem; color: var(--color-text-secondary); }
        .hero-tags { display: flex; flex-wrap: wrap; justify-content: center; gap: 8px; margin-top: 1.5rem; }
        .tag-pill { background: var(--color-bg-elevated); color: var(--color-text-secondary); padding: 4px 12px; border-radius: var(--radius-pill); font-size: 0.8rem; border: 1px solid var(--color-border); }

        .banner-link { display: block; width: 100%; aspect-ratio: 2 / 1; overflow: hidden; border-radius: var(--radius-lg); }
        .banner-link img { width: 100%; height: 100%; object-fit: cover; }

        .cat-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; margin: 2rem 0; }
        .cat-tile { 
            background: var(--color-bg-surface); 
            padding: 16px; 
            border-radius: var(--radius-lg); 
            text-align: center; 
            border: 1px solid var(--color-border);
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 8px;
        }
        .cat-tile i { font-size: 1.5rem; color: var(--color-accent); }
        .cat-tile strong { display: block; color: var(--color-text-primary); }
        .cat-tile span { font-size: 0.85rem; color: var(--color-text-muted); line-height: 1.4; }

        .game-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
        .game-card { 
            background: var(--color-bg-surface); 
            border-radius: var(--radius-lg); 
            overflow: hidden; 
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-card);
            text-decoration: none;
            color: inherit;
        }
        .game-card img { aspect-ratio: 1 / 1; object-fit: cover; width: 100%; }
        .game-card h3 { padding: 12px; font-size: 1rem; text-align: center; color: var(--color-text-primary); }

        .facts-container { background: var(--color-bg-surface); padding: 20px; border-radius: var(--radius-lg); border: 1px solid var(--color-border); }
        .freshness-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 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-table td:last-child { color: var(--color-text-primary); text-align: right; }
        .terms-link-wrapper { margin-top: 12px; font-size: 0.85rem; text-align: center; }

        .toc-nav { 
            display: flex; 
            overflow-x: auto; 
            gap: 12px; 
            padding: 12px 0; 
            margin-bottom: 2rem; 
            scrollbar-width: none; 
            border-bottom: 1px solid var(--color-border);
        }
        .toc-nav::-webkit-scrollbar { display: none; }
        .toc-link { 
            white-space: nowrap; 
            background: var(--color-bg-elevated); 
            padding: 6px 14px; 
            border-radius: var(--radius-pill); 
            font-size: 0.85rem; 
            border: 1px solid var(--color-border-strong);
        }

        .promo-card { 
            background: var(--color-bg-surface); 
            padding: 20px; 
            border-radius: var(--radius-lg); 
            margin-bottom: 16px; 
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-elevated);
        }
        .promo-card h3 { color: var(--color-accent); }
        .promo-card p { color: var(--color-text-secondary); margin-bottom: 1.5rem; }

        .usp-grid { display: grid; grid-template-columns: 1fr; gap: 16px; margin: 2rem 0; }
        .usp-tile { 
            display: flex; 
            gap: 16px; 
            background: var(--color-bg-elevated); 
            padding: 16px; 
            border-radius: var(--radius-lg); 
            align-items: flex-start; 
        }
        .usp-tile i { color: var(--color-accent); font-size: 1.25rem; margin-top: 4px; }
        .usp-content strong { display: block; color: var(--color-text-primary); margin-bottom: 4px; }
        .usp-content span { font-size: 0.9rem; color: var(--color-text-secondary); }

        .payment-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
        .pay-card { 
            background: var(--color-bg-surface); 
            padding: 16px; 
            border-radius: var(--radius-lg); 
            text-align: center; 
            border: 1px solid var(--color-border); 
        }
        .pay-card i { font-size: 1.5rem; color: var(--color-accent); margin-bottom: 8px; display: block; }
        .pay-card strong { display: block; font-size: 0.9rem; margin-bottom: 8px; }
        .pay-card p { font-size: 0.8rem; color: var(--color-text-muted); margin: 0; }

        .guide-steps { display: grid; grid-template-columns: 1fr; gap: 20px; }
        .step-item { display: flex; gap: 16px; }
        .step-num { 
            background: var(--color-accent); 
            color: var(--color-btn-text); 
            width: 32px; 
            height: 32px; 
            border-radius: 50%; 
            display: flex; 
            align-items: center; 
            justify-content: center; 
            font-weight: bold; 
            flex-shrink: 0; 
        }
        .step-content h3 { margin-bottom: 8px; }
        .step-content a { color: inherit; text-decoration: none; }

        .download-panel { 
            background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-bg-surface) 100%); 
            padding: 24px; 
            border-radius: var(--radius-lg); 
            text-align: center; 
            border: 1px solid var(--color-border-strong); 
        }
        .download-panel p { color: var(--color-text-secondary); margin-bottom: 20px; }

        .player-guide-item { 
            background: var(--color-bg-surface); 
            padding: 20px; 
            border-radius: var(--radius-lg); 
            margin-bottom: 16px; 
            border: 1px solid var(--color-border); 
        }
        .meta-info { font-size: 0.8rem; color: var(--color-text-muted); display: block; margin-bottom: 12px; }

        .announcement-item { 
            display: flex; 
            gap: 12px; 
            padding: 16px 0; 
            border-bottom: 1px solid var(--color-border); 
        }
        .announcement-item i { color: var(--color-accent); margin-top: 4px; }
        .announcement-body h3 { font-size: 1.1rem; margin-bottom: 4px; }
        .announcement-body p { font-size: 0.9rem; color: var(--color-text-secondary); margin-bottom: 8px; }
        .announcement-date { font-size: 0.75rem; color: var(--color-text-muted); }

        .faq-item { margin-bottom: 12px; background: var(--color-bg-surface); border-radius: var(--radius-lg); border: 1px solid var(--color-border); }
        .faq-item summary { padding: 16px; cursor: pointer; list-style: none; display: flex; justify-content: space-between; align-items: center; }
        .faq-item summary h3 { margin: 0; font-size: 1rem; color: var(--color-text-primary); }
        .faq-item p { padding: 0 16px 16px; color: var(--color-text-secondary); font-size: 0.95rem; }

        .trust-card { 
            background: var(--color-bg-elevated); 
            padding: 20px; 
            border-radius: var(--radius-lg); 
            margin-top: 24px; 
            border: 1px solid var(--color-border-strong); 
        }

        footer { 
            margin-top: 4rem; 
            padding: 32px 0; 
            border-top: 1px solid var(--color-border); 
            text-align: center; 
        }
        .footer-sitemap { 
            display: grid; 
            grid-template-columns: repeat(3, 1fr); 
            gap: 12px; 
            margin-bottom: 24px; 
            text-align: left; 
        }
        .footer-sitemap a { font-size: 0.85rem; color: var(--color-text-secondary); }
        .footer-contact { margin-bottom: 16px; font-size: 0.9rem; }
        .footer-legal { font-size: 0.8rem; color: var(--color-text-muted); line-height: 1.5; }

        .navigator { 
            position: fixed; 
            inset-inline: 0; 
            bottom: 0; 
            background: var(--color-bg-surface); 
            display: flex; 
            justify-content: space-around; 
            align-items: center; 
            padding: 12px 0 calc(12px + env(safe-area-inset-bottom)); 
            border-top: 1px solid var(--color-border); 
            z-index: 1000; 
        }
        .nav-item { display: flex; flex-direction: column; align-items: center; gap: 4px; color: var(--color-text-secondary); font-size: 0.7rem; }
        .nav-item i { font-size: 1.2rem; color: var(--color-text-secondary); }
        .nav-item:hover { color: var(--color-accent); }

        .utility-link { display: block; text-align: center; margin-top: 1rem; font-weight: 500; }

        section { content-visibility: auto; contain-intrinsic-size: 1px 500px; }

        @media (min-width: 768px) {
            body { padding-inline: 24px; padding-bottom: 24px; }
            .cat-grid { grid-template-columns: repeat(3, 1fr); }
            .game-grid { grid-template-columns: repeat(4, 1fr); }
            .payment-grid { grid-template-columns: repeat(4, 1fr); }
            .guide-steps { grid-template-columns: repeat(2, 1fr); }
            .navigator { display: none; }
            header { padding: 16px 0; }
        }

        @media (min-width: 1200px) {
            body { padding-inline: 32px; max-width: 1200px; margin-inline: auto; }
            .cat-grid { grid-template-columns: repeat(4, 1fr); }
            .game-grid { grid-template-columns: repeat(4, 1fr); }
        }