:root {
            --color-primary: #006D77;
            --color-primary-hover: #00838D;
            --color-secondary: #E29578;
            --color-secondary-hover: #F2B29A;
            --color-accent: #FF4D4D;
            --bg-main: #001A1D;
            --bg-surface: #002529;
            --bg-elevated: #003136;
            --bg-overlay: rgba(0, 26, 29, 0.8);
            --text-primary: #EAF4F4;
            --text-secondary: #B0C4C4;
            --text-muted: #7A8C8C;
            --text-brand-contrast: #001A1D;
            --text-link: #E29578;
            --text-link-hover: #FF4D4D;
            --btn-bg: #FF4D4D;
            --btn-text: #FFFFFF;
            --btn-hover-bg: #FF6B6B;
            --semantic-success: #2DCE89;
            --semantic-error: #F5365C;
            --semantic-warning: #FFB800;
            --semantic-info: #11CDEF;
            --border-default: #003B41;
            --border-strong: #00545C;
            --border-brand: #FF4D4D;
            --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);
            --shadow-glow: 0 0 15px rgba(255, 77, 77, 0.4);
            --grad-brand: linear-gradient(135deg, #006D77 0%, #003B41 100%);
            --grad-hero: linear-gradient(180deg, #002529 0%, #001A1D 100%);
            --grad-button: linear-gradient(to bottom, #FF4D4D 0%, #D43F3F 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(--bg-main);
            color: var(--text-primary);
        }

        h1, h2, h3 {
            font-family: 'Barlow Condensed', sans-serif;
            letter-spacing: -0.02em;
            line-height: 1.1;
            margin: 0;
        }
        h1 { font-size: clamp(1.6rem, 6.5vw, 2.4rem); line-height: 1.2; margin-bottom: 1rem; color: var(--text-primary); }
        h2 { font-size: clamp(1.3rem, 5.2vw, 1.8rem); line-height: 1.25; margin-top: 2rem; margin-bottom: 1rem; color: var(--text-primary); }
        h3 { font-size: clamp(1.05rem, 4.2vw, 1.25rem); line-height: 1.3; margin-bottom: 0.5rem; }

        a { color: var(--text-link); text-decoration: none; transition: color 0.2s ease; }
        a:hover { color: var(--text-link-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 18px;
            border-radius: var(--radius-md);
            font-weight: 600;
            cursor: pointer;
            border: none;
            transition: transform 0.1s ease, opacity 0.2s ease;
            text-align: center;
        }
        .btn-primary { background: var(--grad-button); color: var(--btn-text); box-shadow: var(--shadow-card); }
        .btn-primary:hover { background: var(--btn-hover-bg); transform: translateY(-1px); }
        .btn-primary:active { transform: translateY(1px); box-shadow: none; }
        .btn-outline { background: transparent; border: 2px solid var(--color-primary); color: var(--text-primary); }
        .btn-outline:hover { background: var(--color-primary); }
        .btn-full { width: 100%; display: block; box-sizing: border-box; }

        header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 12px 0;
            border-bottom: 1px solid var(--border-default);
        }
        .header-brand { display: flex; align-items: center; gap: 8px; }
        .header-brand strong { font-size: 16px; font-weight: normal; }
        .header-actions { display: flex; gap: 10px; }

        main { width: 100%; }

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

        .banner-link { display: block; width: 100%; margin: 1rem 0; overflow: hidden; }
        .banner-link img { width: 100%; aspect-ratio: 2 / 1; object-fit: cover; }

        .category-hub {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 12px;
            margin: 2rem 0;
        }
        .cat-tile {
            background: var(--bg-surface);
            padding: 1.5rem;
            border-radius: var(--radius-lg);
            text-align: center;
            border: 1px solid var(--border-default);
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 8px;
        }
        .cat-tile i { font-size: 2rem; color: var(--color-secondary); }
        .cat-tile strong { display: block; color: var(--text-primary); font-size: 1.1rem; }
        .cat-tile span { font-size: 0.875rem; color: var(--text-muted); }

        .game-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 12px;
            margin-bottom: 2rem;
        }
        .game-card {
            background: var(--bg-surface);
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border-default);
            box-shadow: var(--shadow-card);
        }
        .game-card img { width: 100%; aspect-ratio: 1 / 1; object-fit: cover; }
        .game-card h3 { padding: 10px; font-size: 1rem; text-align: center; color: var(--text-primary); }

        .fact-table { width: 100%; border-collapse: collapse; margin: 1rem 0; background: var(--bg-surface); border-radius: var(--radius-lg); overflow: hidden; }
        .fact-table td { padding: 12px; border-bottom: 1px solid var(--border-default); }
        .fact-table td:first-child { font-weight: 600; color: var(--text-secondary); width: 40%; }
        .fact-table td:last-child { color: var(--text-primary); }
        .freshness-notice { font-style: italic; font-size: 0.875rem; color: var(--text-muted); margin-bottom: 1rem; }
        .terms-note { display: block; font-size: 0.875rem; color: var(--text-muted); margin-top: 0.5rem; text-align: center; }

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

        .promo-list { display: flex; flex-direction: column; gap: 16px; }
        .promo-card {
            background: var(--bg-elevated);
            padding: 1.5rem;
            border-radius: var(--radius-lg);
            border-left: 4px solid var(--color-accent);
        }
        .promo-card h3 { color: var(--text-primary); margin-bottom: 0.75rem; }
        .promo-card p { color: var(--text-secondary); margin-bottom: 1.25rem; font-size: 0.95rem; }

        .usp-grid { display: grid; grid-template-columns: 1fr; gap: 12px; margin: 2rem 0; }
        .usp-tile {
            background: var(--bg-surface);
            padding: 1rem;
            border-radius: var(--radius-md);
            display: flex;
            gap: 12px;
            align-items: flex-start;
            border: 1px solid var(--border-default);
        }
        .usp-tile i { color: var(--color-secondary); font-size: 1.25rem; margin-top: 4px; }
        .usp-content strong { display: block; color: var(--text-primary); margin-bottom: 4px; }
        .usp-content span { font-size: 0.875rem; color: var(--text-muted); }

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

        .guide-steps { display: flex; flex-direction: column; gap: 20px; }
        .step-item { display: flex; gap: 15px; }
        .step-num {
            background: var(--color-primary);
            color: white;
            width: 32px;
            height: 32px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            font-weight: bold;
        }
        .step-content h3 { margin-bottom: 8px; }
        .step-content a { color: inherit; text-decoration: none; }

        .mobile-access {
            background: var(--bg-elevated);
            padding: 2rem 1.5rem;
            border-radius: var(--radius-lg);
            text-align: center;
            margin: 2rem 0;
        }

        .player-guide { display: flex; flex-direction: column; gap: 16px; }
        .guide-card {
            background: var(--bg-surface);
            padding: 1.5rem;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-default);
        }
        .guide-meta { font-size: 0.8rem; color: var(--text-muted); margin-bottom: 10px; display: block; }

        .announcement-list { display: flex; flex-direction: column; gap: 12px; }
        .announcement-item {
            background: var(--bg-surface);
            padding: 1rem;
            border-radius: var(--radius-md);
            border-left: 3px solid var(--color-primary);
        }
        .announcement-header { display: flex; align-items: center; gap: 10px; margin-bottom: 8px; }
        .announcement-header i { color: var(--color-secondary); }
        .announcement-date { font-size: 0.75rem; color: var(--text-muted); display: block; margin-top: 8px; }

        .faq-section { margin: 2rem 0; }
        .faq-item { background: var(--bg-surface); margin-bottom: 10px; border-radius: var(--radius-md); border: 1px solid var(--border-default); }
        .faq-item summary { padding: 15px; 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(--text-primary); pointer-events: none; }
        .faq-item p { padding: 0 15px 15px 15px; color: var(--text-secondary); font-size: 0.9rem; }

        .about-section { background: var(--bg-surface); padding: 2rem 1.5rem; border-radius: var(--radius-lg); margin: 2rem 0; }
        .team-card {
            margin-top: 2rem;
            padding: 1.5rem;
            background: var(--bg-elevated);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-strong);
        }

        .security-section {
            padding: 2rem 0;
            border-top: 1px solid var(--border-default);
            margin-top: 2rem;
        }
        .security-links { display: flex; flex-wrap: wrap; gap: 15px; margin: 1.5rem 0; }
        .security-link {
            background: var(--bg-elevated);
            padding: 10px 20px;
            border-radius: var(--radius-pill);
            font-size: 0.9rem;
            border: 1px solid var(--border-strong);
        }

        footer {
            background: var(--bg-surface);
            padding: 2rem 0;
            border-top: 2px solid var(--color-primary);
            text-align: center;
        }
        .footer-sitemap {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 10px;
            max-width: 600px;
            margin: 0 auto 2rem auto;
            text-align: left;
        }
        .footer-contact { margin-bottom: 1.5rem; font-size: 0.9rem; }
        .footer-legal { font-size: 0.8rem; color: var(--text-muted); line-height: 1.5; }

        .navigator {
            position: fixed;
            inset-inline: 0;
            bottom: 0;
            height: 72px;
            background: var(--bg-surface);
            display: flex;
            justify-content: space-around;
            align-items: center;
            border-top: 1px solid var(--border-default);
            padding-bottom: env(safe-area-inset-bottom);
            z-index: 1000;
        }
        .nav-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 4px;
            color: var(--text-secondary);
            font-size: 0.75rem;
            flex: 1;
        }
        .nav-item i { font-size: 1.25rem; }

        .util-link { font-size: 0.9rem; color: var(--text-link); font-weight: 500; }

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

        @media (min-width: 768px) {
            body { padding-inline: 24px; padding-bottom: 24px; }
            .category-hub { grid-template-columns: repeat(3, 1fr); }
            .game-grid { grid-template-columns: repeat(3, 1fr); }
            .payment-grid { grid-template-columns: repeat(4, 1fr); }
            .navigator { position: static; height: auto; padding: 0; border: none; 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-hub { grid-template-columns: repeat(4, 1fr); }
            .game-grid { grid-template-columns: repeat(4, 1fr); }
            .payment-grid { grid-template-columns: repeat(4, 1fr); }
        }