:root {
            --brand-primary: #0A192F;
            --brand-primary-hover: #112240;
            --brand-secondary: #C0C0C8;
            --brand-accent: #00F5FF;
            --bg-main: #020C1B;
            --bg-surface: #0A192F;
            --bg-elevated: #112240;
            --text-primary: #E6F1FF;
            --text-secondary: #8892B0;
            --text-muted: #495670;
            --btn-bg: #00F5FF;
            --btn-text: #020C1B;
            --btn-hover-bg: #B0FFFF;
            --border-default: #1D2D44;
            --border-brand: rgba(0, 245, 255, 0.4);
            --radius-sm: 8px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --radius-pill: 9999px;
            --shadow-card: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
        }
        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(--bg-main);
            color: var(--text-primary);
        }
        img, video, iframe { max-width: 100%; height: auto; display: block; }
        a { color: var(--brand-accent); text-decoration: none; transition: color 0.3s ease; }
        a:hover { color: var(--btn-hover-bg); }
        .btn, .cta-btn {
            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;
        }
        .btn-primary { background: var(--btn-bg); color: var(--btn-text); }
        .btn-primary:hover { background: var(--btn-hover-bg); transform: translateY(-2px); }
        .btn-outline { background: transparent; border: 1px solid var(--brand-accent); color: var(--brand-accent); }
        .btn-outline:hover { background: rgba(0, 245, 255, 0.1); }
        h1 { font-family: 'Outfit', sans-serif; font-size: clamp(1.8rem, 6.5vw, 3rem); line-height: 1.2; margin-bottom: 1.5rem; color: var(--text-primary); }
        h2 { font-family: 'Outfit', sans-serif; font-size: clamp(1.4rem, 5.2vw, 2.25rem); line-height: 1.25; margin-top: 3rem; margin-bottom: 1.5rem; color: var(--text-primary); }
        h3 { font-family: 'Outfit', sans-serif; font-size: clamp(1.1rem, 4.2vw, 1.75rem); line-height: 1.3; margin-bottom: 1rem; color: var(--text-primary); }
        header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 1rem 0;
            border-bottom: 1px solid var(--border-default);
        }
        .header-brand { display: flex; align-items: center; gap: 10px; }
        .header-brand strong { font-size: 16px; font-weight: normal; }
        .header-nav { display: flex; gap: 12px; }
        .hero-section { text-align: center; padding: 3rem 0; }
        .hero-intro { max-width: 800px; margin: 0 auto 2rem; font-size: 1.1rem; color: var(--text-secondary); }
        .hero-tags { display: flex; justify-content: center; gap: 10px; flex-wrap: wrap; margin-top: 2rem; }
        .hero-tag { background: var(--bg-elevated); border: 1px solid var(--border-brand); padding: 6px 16px; border-radius: var(--radius-pill); font-size: 0.85rem; color: var(--text-primary); }
        .banner-link { display: block; width: 100%; margin: 2rem 0; }
        .banner-img { width: 100%; aspect-ratio: 2 / 1; object-fit: cover; border-radius: var(--radius-md); }
        .category-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; margin-bottom: 3rem; }
        .category-tile { 
            background: var(--bg-surface); 
            border: 1px solid var(--border-default); 
            padding: 20px; 
            border-radius: var(--radius-md); 
            text-align: center; 
            transition: border-color 0.3s ease;
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 10px;
        }
        .category-tile:hover { border-color: var(--brand-accent); }
        .category-tile i { font-size: 2rem; color: var(--brand-accent); }
        .category-tile span { display: block; font-weight: 600; margin-bottom: 5px; }
        .category-tile p { font-size: 0.85rem; color: var(--text-secondary); 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: transform 0.3s ease;
        }
        .game-card:hover { transform: scale(1.03); border-color: var(--brand-accent); }
        .game-card img { width: 100%; aspect-ratio: 1 / 1; object-fit: cover; }
        .game-card h3 { font-size: 1rem; text-align: center; padding: 12px; margin: 0; font-weight: 500; }
        .fact-table-wrapper { background: var(--bg-surface); border-radius: var(--radius-md); padding: 20px; border: 1px solid var(--border-default); margin-bottom: 1rem; }
        .freshness-notice { font-style: italic; font-size: 0.85rem; color: var(--text-secondary); margin-bottom: 1rem; display: block; }
        .fact-table { width: 100%; border-collapse: collapse; }
        .fact-table tr { border-bottom: 1px solid var(--border-default); }
        .fact-table td { padding: 12px 8px; vertical-align: middle; }
        .fact-table td:first-child { font-weight: 600; color: var(--text-secondary); width: 40%; }
        .terms-link { display: block; text-align: center; font-size: 0.8rem; margin-top: 12px; color: var(--text-muted); }
        .toc-nav { 
            display: flex; 
            overflow-x: auto; 
            gap: 12px; 
            padding: 1rem 0; 
            scrollbar-width: none; 
            border-top: 1px solid var(--border-default); 
            border-bottom: 1px solid var(--border-default);
            margin-bottom: 2rem;
        }
        .toc-nav::-webkit-scrollbar { display: none; }
        .toc-link { 
            white-space: nowrap; 
            background: var(--bg-elevated); 
            padding: 8px 16px; 
            border-radius: var(--radius-pill); 
            font-size: 0.9rem; 
            border: 1px solid var(--border-default);
        }
        .promo-grid { display: grid; grid-template-columns: 1fr; gap: 20px; }
        .promo-card { 
            background: var(--bg-surface); 
            border: 1px solid var(--border-brand); 
            padding: 24px; 
            border-radius: var(--radius-lg); 
            display: flex; 
            flex-direction: column; 
            gap: 15px; 
            box-shadow: var(--shadow-card);
        }
        .usp-grid { display: grid; grid-template-columns: 1fr; gap: 16px; }
        .usp-tile { 
            background: var(--bg-elevated); 
            padding: 20px; 
            border-radius: var(--radius-md); 
            display: flex; 
            gap: 15px; 
            align-items: flex-start;
            border: 1px solid var(--border-default);
        }
        .usp-tile i { font-size: 1.5rem; color: var(--brand-accent); margin-top: 4px; }
        .usp-tile strong { display: block; font-size: 1.1rem; margin-bottom: 5px; }
        .usp-tile 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); 
            padding: 20px; 
            border-radius: var(--radius-md); 
            text-align: center; 
            border: 1px solid var(--border-default);
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 10px;
        }
        .payment-card i { font-size: 2rem; color: var(--brand-accent); }
        .payment-card strong { display: block; font-size: 1rem; margin-bottom: 5px; }
        .payment-card p { margin: 0; font-size: 0.8rem; color: var(--text-secondary); }
        .guide-steps { display: grid; grid-template-columns: 1fr; gap: 24px; }
        .step-card { display: flex; gap: 20px; align-items: flex-start; }
        .step-num { 
            background: var(--brand-accent); 
            color: var(--bg-main); 
            width: 36px; 
            height: 36px; 
            border-radius: 50%; 
            display: flex; 
            align-items: center; 
            justify-content: center; 
            font-weight: 800; 
            flex-shrink: 0;
        }
        .step-content h3 a { color: inherit; text-decoration: none; }
        .step-content p { margin: 0; color: var(--text-secondary); }
        .download-box { 
            background: var(--bg-surface); 
            padding: 30px; 
            border-radius: var(--radius-lg); 
            text-align: center; 
            border: 1px solid var(--border-brand);
            margin-bottom: 2rem;
        }
        .provider-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
        .provider-card { 
            background: var(--bg-elevated); 
            padding: 20px; 
            border-radius: var(--radius-md); 
            text-align: center; 
            border: 1px solid var(--border-default);
        }
        .player-guide-list { display: grid; grid-template-columns: 1fr; gap: 20px; }
        .guide-item { background: var(--bg-surface); padding: 20px; border-radius: var(--radius-md); border-left: 4px solid var(--brand-accent); }
        .guide-meta { font-size: 0.8rem; color: var(--text-muted); margin-bottom: 10px; display: block; }
        .announcement-list { display: grid; grid-template-columns: 1fr; gap: 16px; }
        .announcement-card { 
            background: var(--bg-surface); 
            padding: 20px; 
            border-radius: var(--radius-md); 
            border: 1px solid var(--border-default);
            display: flex;
            gap: 15px;
        }
        .announcement-card i { font-size: 1.2rem; color: var(--brand-accent); margin-top: 5px; }
        .announcement-date { font-size: 0.8rem; color: var(--text-muted); display: block; margin-bottom: 5px; }
        .faq-container { display: grid; gap: 12px; }
        .faq-item { background: var(--bg-surface); border: 1px solid var(--border-default); border-radius: var(--radius-md); }
        .faq-item summary { padding: 16px; cursor: pointer; font-weight: 600; list-style: none; display: flex; justify-content: space-between; align-items: center; }
        .faq-item summary h3 { margin: 0; font-size: 1.1rem; text-align: left; }
        .faq-item p { padding: 0 16px 16px; margin: 0; color: var(--text-secondary); }
        .about-section { padding: 20px; background: var(--bg-surface); border-radius: var(--radius-lg); border: 1px solid var(--border-default); }
        .team-card { 
            margin-top: 2rem; 
            padding: 20px; 
            background: var(--bg-elevated); 
            border-radius: var(--radius-md); 
            border: 1px solid var(--border-brand);
        }
        .security-box { padding: 20px; background: var(--bg-elevated); border-radius: var(--radius-md); border: 1px solid var(--border-default); }
        .security-links { display: flex; gap: 20px; flex-wrap: wrap; margin: 1.5rem 0; }
        .security-links a { font-weight: 600; color: var(--brand-accent); }
        footer { 
            padding: 3rem 0 5rem; 
            border-top: 1px solid var(--border-default); 
            margin-top: 3rem; 
            text-align: center; 
        }
        .footer-sitemap { 
            display: grid; 
            grid-template-columns: repeat(3, 1fr); 
            gap: 12px; 
            margin-bottom: 2rem; 
            text-align: left; 
            max-width: 800px; 
            margin-inline: auto;
        }
        .footer-contact { margin-bottom: 1.5rem; font-size: 0.9rem; color: var(--text-secondary); }
        .footer-legal { font-size: 0.8rem; color: var(--text-muted); line-height: 1.5; }
        .navigator { 
            position: fixed; 
            inset-inline: 0; 
            bottom: 0; 
            background: var(--bg-surface); 
            border-top: 1px solid var(--border-default); 
            display: flex; 
            justify-content: space-around; 
            align-items: center; 
            padding: 12px 0 calc(12px + 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(--text-secondary); font-size: 0.75rem; text-decoration: none; }
        .nav-item i { font-size: 1.2rem; }
        .nav-item:hover { color: var(--brand-accent); }
        .utility-link { display: inline-block; margin-top: 10px; color: var(--brand-accent); font-weight: 600; }
        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(2, 1fr); }
            .payment-grid { grid-template-columns: repeat(4, 1fr); }
            .guide-steps { grid-template-columns: repeat(2, 1fr); }
            .provider-grid { grid-template-columns: repeat(2, 1fr); }
            .announcement-list { grid-template-columns: repeat(2, 1fr); }
            .navigator { position: static; 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(7, 1fr); }
            .guide-steps { grid-template-columns: repeat(4, 1fr); }
            .provider-grid { grid-template-columns: repeat(4, 1fr); }
            .announcement-list { grid-template-columns: repeat(2, 1fr); }
        }