:root {
            --brand-primary: #006D77;
            --brand-primary-hover: #008B96;
            --brand-secondary: #E29578;
            --brand-secondary-hover: #F2A68D;
            --brand-accent: #FF5A5F;
            --bg-main: #021B1D;
            --bg-surface: #072D30;
            --bg-elevated: #0C4144;
            --bg-overlay: rgba(2, 27, 29, 0.8);
            --text-primary: #F1FAEF;
            --text-secondary: #A8DADC;
            --text-muted: #6B8E8E;
            --text-brand-contrast: #021B1D;
            --text-link: #FFB3B5;
            --text-link-hover: #FFFFFF;
            --btn-bg: #FF5A5F;
            --btn-text: #FFFFFF;
            --btn-hover-bg: #FF7C81;
            --border-default: #1A4D50;
            --border-strong: #2D6A6E;
            --border-brand: #FF5A5F;
            --radius-sm: 2px;
            --radius-md: 4px;
            --radius-lg: 8px;
            --radius-pill: 9999px;
            --shadow-card: 4px 4px 0px #000000;
            --shadow-elevated: 8px 8px 0px #000000;
            --grad-brand: linear-gradient(135deg, #006D77 0%, #004A50 100%);
            --grad-hero: linear-gradient(180deg, #072D30 0%, #021B1D 100%);
            --grad-button: linear-gradient(180deg, #FF5A5F 0%, #E0484D 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);
        }
        img, video, iframe { max-width: 100%; height: auto; display: block; }
        a { color: var(--text-link); text-decoration: none; transition: color 0.2s ease; }
        a:hover { color: var(--text-link-hover); }
        .btn, .cta {
            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;
            text-align: center;
            transition: transform 0.1s ease, filter 0.2s ease;
            text-decoration: none;
        }
        .btn-primary { background: var(--grad-button); color: var(--btn-text); box-shadow: var(--shadow-card); }
        .btn-primary:hover { filter: brightness(1.1); transform: translate(-2px, -2px); box-shadow: var(--shadow-elevated); }
        .btn-secondary { background: var(--brand-primary); color: var(--text-primary); }
        .btn-outline { border: 2px solid var(--brand-accent); color: var(--brand-accent); background: transparent; }

        header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 1rem 0;
            position: sticky;
            top: 0;
            z-index: 100;
            background: var(--bg-main);
            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; color: var(--text-primary); }
        .header-nav { display: flex; gap: 12px; }

        main { width: 100%; }
        h1, h2, h3 { font-family: 'Barlow Condensed', sans-serif; color: var(--text-primary); letter-spacing: -0.02em; line-height: 1.1; }
        h1 { font-size: clamp(1.6rem, 6.5vw, 2.4rem); margin: 0 0 1rem 0; font-style: italic; text-shadow: 2px 2px 0 var(--brand-accent); }
        h2 { font-size: clamp(1.3rem, 5.2vw, 1.8rem); margin-top: 2rem; margin-bottom: 1rem; font-style: italic; border-left: 4px solid var(--brand-accent); padding-left: 12px; }
        h3 { font-size: clamp(1.05rem, 4.2vw, 1.25rem); margin: 0 0 0.5rem 0; }

        .hero-section {
            padding: 2rem 0;
            background: var(--grad-hero);
            text-align: center;
            border-radius: 0 0 var(--radius-lg) var(--radius-lg);
        }
        .hero-intro { max-width: 800px; margin: 0 auto 2rem auto; color: var(--text-secondary); }
        .hero-cta { width: 100%; display: block; font-size: 1.25rem; text-transform: uppercase; margin-bottom: 1.5rem; }
        .hero-tags { display: flex; flex-wrap: wrap; justify-content: center; gap: 8px; }
        .hero-tag { background: var(--bg-elevated); color: var(--text-secondary); padding: 4px 12px; border-radius: var(--radius-pill); font-size: 0.85rem; border: 1px solid var(--border-strong); }

        .banner-link { display: block; line-height: 0; overflow: hidden; border-radius: var(--radius-md); }
        .banner-img { width: 1024px; height: 512px; aspect-ratio: 2/1; object-fit: cover; }

        .category-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; margin: 2rem 0; }
        .category-tile { 
            background: var(--bg-surface); 
            padding: 1.5rem; 
            border-radius: var(--radius-lg); 
            text-align: center; 
            border: 1px solid var(--border-default);
            transition: border-color 0.2s;
        }
        .category-tile:hover { border-color: var(--brand-accent); }
        .category-tile i { font-size: 2rem; color: var(--brand-accent); margin-bottom: 0.5rem; }
        .category-tile strong { display: block; margin-bottom: 8px; font-size: 1.1rem; color: var(--text-primary); }
        .category-tile span { font-size: 0.85rem; color: var(--text-muted); display: block; }

        .game-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 15px; margin-bottom: 2rem; }
        .game-card { 
            background: var(--bg-surface); 
            border-radius: var(--radius-lg); 
            overflow: hidden; 
            border: 1px solid var(--border-default); 
            box-shadow: var(--shadow-card);
            transition: transform 0.2s;
        }
        .game-card:hover { transform: translateY(-4px); }
        .game-card img { aspect-ratio: 1/1; object-fit: cover; width: 100%; }
        .game-card-body { padding: 12px; text-align: center; }
        .game-card h3 { font-size: 1rem; margin: 0; color: var(--text-primary); }

        .facts-container { background: var(--bg-surface); border-radius: var(--radius-lg); padding: 1.5rem; border: 1px solid var(--border-strong); }
        .facts-notice { font-style: italic; color: var(--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(--border-default); }
        .facts-table td { padding: 12px 8px; vertical-align: top; }
        .facts-label { color: var(--text-secondary); font-weight: 600; width: 40%; }
        .facts-value { color: var(--text-primary); }
        .facts-footer-link { display: block; text-align: center; margin-top: 1rem; font-size: 0.85rem; color: var(--text-muted); }

        .toc-nav { 
            display: flex; 
            overflow-x: auto; 
            gap: 10px; 
            padding: 1rem 0; 
            scrollbar-width: none; 
            -ms-overflow-style: none;
            border-top: 1px solid var(--border-default);
            border-bottom: 1px solid var(--border-default);
        }
        .toc-nav::-webkit-scrollbar { display: none; }
        .toc-link { 
            white-space: nowrap; 
            background: var(--bg-elevated); 
            padding: 6px 15px; 
            border-radius: var(--radius-pill); 
            font-size: 0.9rem; 
            color: var(--text-secondary); 
            border: 1px solid var(--border-strong);
        }
        .toc-link:hover { background: var(--brand-primary); color: var(--text-primary); }

        .promo-list { display: flex; flex-direction: column; gap: 15px; }
        .promo-card { 
            background: var(--bg-elevated); 
            padding: 1.5rem; 
            border-radius: var(--radius-lg); 
            border-left: 5px solid var(--brand-accent); 
            box-shadow: var(--shadow-card);
        }
        .promo-card p { color: var(--text-secondary); margin-bottom: 1.5rem; }

        .usp-grid { display: flex; flex-direction: column; gap: 15px; margin: 2rem 0; }
        .usp-item { 
            display: flex; 
            align-items: center; 
            gap: 15px; 
            background: var(--bg-surface); 
            padding: 1rem; 
            border-radius: var(--radius-lg); 
            border: 1px solid var(--border-default);
        }
        .usp-item i { font-size: 1.5rem; color: var(--brand-accent); width: 30px; text-align: center; }
        .usp-content strong { display: block; color: var(--text-primary); font-size: 1.1rem; }
        .usp-content span { font-size: 0.9rem; color: var(--text-muted); }

        .payment-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
        .payment-card { 
            background: var(--bg-surface); 
            padding: 1rem; 
            border-radius: var(--radius-md); 
            text-align: center; 
            border: 1px solid var(--border-default);
        }
        .payment-card i { font-size: 1.5rem; color: var(--brand-secondary); margin-bottom: 8px; }
        .payment-card strong { display: block; margin-bottom: 5px; font-size: 0.95rem; }
        .payment-card p { font-size: 0.8rem; color: var(--text-muted); margin: 0; }

        .guide-steps { display: flex; flex-direction: column; gap: 20px; }
        .guide-step { display: flex; gap: 15px; align-items: flex-start; }
        .step-number { 
            min-width: 35px; 
            height: 35px; 
            background: var(--brand-accent); 
            color: var(--text-primary); 
            border-radius: 50%; 
            display: flex; 
            align-items: center; 
            justify-content: center; 
            font-weight: 700;
            flex-shrink: 0;
        }
        .guide-step h3 { color: var(--text-primary); margin: 0 0 5px 0; }
        .guide-step h3 a { color: inherit; text-decoration: none; }

        .mobile-section { 
            background: var(--bg-surface); 
            padding: 2rem 1.5rem; 
            border-radius: var(--radius-lg); 
            text-align: center; 
            border: 2px dashed var(--border-strong);
        }
        .mobile-section p { color: var(--text-secondary); margin-bottom: 1.5rem; }

        .player-guides { display: flex; flex-direction: column; gap: 15px; }
        .guide-item { background: var(--bg-surface); padding: 1.5rem; border-radius: var(--radius-lg); border: 1px solid var(--border-default); }
        .guide-meta { font-size: 0.8rem; color: var(--text-muted); display: block; margin-bottom: 10px; }

        .announcement-list { display: flex; flex-direction: column; gap: 15px; }
        .announcement-item { 
            display: flex; 
            gap: 12px; 
            background: var(--bg-elevated); 
            padding: 1rem; 
            border-radius: var(--radius-md); 
            border-bottom: 2px solid var(--border-strong);
        }
        .announcement-item i { color: var(--brand-accent); margin-top: 4px; }
        .announcement-date { font-size: 0.75rem; color: var(--text-muted); display: block; margin-top: 8px; }

        .faq-container { display: flex; flex-direction: column; gap: 10px; }
        .faq-item { background: var(--bg-surface); border-radius: var(--radius-md); border: 1px solid var(--border-default); }
        .faq-item summary { padding: 1rem; cursor: pointer; list-style: none; display: flex; justify-content: space-between; align-items: center; }
        .faq-item summary::-webkit-details-marker { display: none; }
        .faq-item summary h3 { margin: 0; font-size: 1rem; color: var(--text-primary); }
        .faq-item p { padding: 0 1rem 1rem 1rem; color: var(--text-secondary); font-size: 0.95rem; margin: 0; }

        .about-section { background: var(--bg-surface); padding: 2rem 1.5rem; border-radius: var(--radius-lg); }
        .team-card { 
            background: var(--bg-elevated); 
            padding: 1.5rem; 
            border-radius: var(--radius-md); 
            margin-top: 2rem; 
            border: 1px solid var(--border-strong);
        }
        .team-card h3 { color: var(--brand-secondary); margin-top: 0; }

        .security-section { 
            background: var(--bg-main); 
            padding: 2rem 0; 
            border-top: 1px solid var(--border-default); 
            text-align: center;
        }
        .security-links { display: flex; justify-content: center; gap: 20px; margin: 1.5rem 0; flex-wrap: wrap; }
        .security-link { font-weight: 600; color: var(--brand-secondary); border: 1px solid var(--border-strong); padding: 5px 15px; border-radius: var(--radius-pill); }

        footer { 
            background: var(--bg-surface); 
            padding: 3rem 0 5rem 0; 
            margin-top: 3rem; 
            border-top: 4px solid var(--brand-primary); 
            text-align: center;
        }
        .footer-sitemap { 
            display: grid; 
            grid-template-columns: repeat(3, 1fr); 
            gap: 10px; 
            max-width: 800px; 
            margin: 0 auto 2rem auto; 
            text-align: center;
        }
        .footer-sitemap a { font-size: 0.9rem; color: var(--text-secondary); }
        .footer-contact { margin-bottom: 2rem; color: var(--text-secondary); font-size: 0.95rem; }
        .footer-legal { font-size: 0.8rem; color: var(--text-muted); padding-inline: 20px; line-height: 1.4; }

        .navigator { 
            position: fixed; 
            inset-inline: 0; 
            bottom: 0; 
            background: var(--bg-surface); 
            display: flex; 
            justify-content: space-around; 
            align-items: center; 
            padding: 10px 0 calc(10px + env(safe-area-inset-bottom)); 
            border-top: 1px solid var(--border-strong); 
            z-index: 1000; 
        }
        .nav-item { text-align: center; color: var(--text-secondary); text-decoration: none; flex: 1; }
        .nav-item i { display: block; font-size: 1.2rem; margin-bottom: 4px; }
        .nav-item span { font-size: 0.7rem; display: block; }

        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); }
            .guide-steps { flex-direction: row; flex-wrap: wrap; }
            .guide-step { width: calc(50% - 10px); }
            .navigator { position: static; display: none; }
            footer { padding-bottom: 24px; }
        }

        @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(4, 1fr); }
        }