:root {
            --brand-primary: #D4AF37;
            --brand-primary-hover: #F9D71C;
            --brand-secondary: #C5A059;
            --brand-secondary-hover: #E2C275;
            --brand-accent: #FFD700;
            --bg-main: #0A0A0A;
            --bg-surface: #1A1A1A;
            --bg-elevated: #252525;
            --bg-overlay: rgba(0, 0, 0, 0.85);
            --text-primary: #FFFFFF;
            --text-secondary: #B3B3B3;
            --text-muted: #666666;
            --text-contrast: #000000;
            --text-link: #D4AF37;
            --text-link-hover: #F9D71C;
            --btn-bg: #D4AF37;
            --btn-text: #000000;
            --btn-bg-hover: #F9D71C;
            --border-default: #333333;
            --border-strong: #4D4D4D;
            --border-brand: #D4AF37;
            --semantic-success: #28A745;
            --semantic-error: #DC3545;
            --semantic-warning: #FFC107;
            --semantic-info: #17A2B8;
        }
        html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
        body {
            margin: 0;
            font-family: 'Inter', 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);
        }
        header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding-block: 12px;
            border-bottom: 1px solid var(--border-default);
            position: sticky;
            top: 0;
            z-index: 100;
            background-color: var(--bg-main);
        }
        .header-logo { display: flex; align-items: center; gap: 8px; text-decoration: none; color: inherit; }
        .header-logo strong { font-size: 16px; font-weight: normal; }
        .header-actions { display: flex; gap: 8px; }
        main { width: 100%; }
        footer {
            margin-top: 40px;
            padding-block: 40px 20px;
            border-top: 1px solid var(--border-default);
            text-align: center;
        }
        .navigator {
            position: fixed;
            inset-inline: 0;
            bottom: 0;
            height: 72px;
            background-color: var(--bg-surface);
            border-top: 1px solid var(--border-strong);
            display: flex;
            justify-content: space-around;
            align-items: center;
            padding-bottom: env(safe-area-inset-bottom);
            z-index: 1000;
        }
        .nav-item {
            text-decoration: none;
            color: var(--text-secondary);
            display: flex;
            flex-direction: column;
            align-items: center;
            font-size: 11px;
            gap: 4px;
        }
        .nav-item i { font-size: 20px; }
        img, video, iframe { max-width: 100%; height: auto; display: block; }
        .btn, .cta {
            min-height: 44px;
            min-inline-size: 44px;
            padding: 12px 18px;
            border-radius: 8px;
            border: none;
            cursor: pointer;
            font-weight: 600;
            text-align: center;
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            transition: background-color 0.2s ease, transform 0.1s ease;
        }
        .btn-primary { background-color: var(--btn-bg); color: var(--btn-text); }
        .btn-primary:hover { background-color: var(--btn-bg-hover); }
        .btn-outline { background-color: transparent; border: 1px solid var(--brand-primary); color: var(--brand-primary); }
        .btn-outline:hover { background-color: var(--brand-primary); color: var(--text-contrast); }
        h1, h2, h3 { font-family: 'Montserrat', sans-serif; color: var(--text-primary); letter-spacing: -0.02em; }
        h1 { font-size: clamp(1.6rem, 6.5vw, 2.4rem); line-height: 1.2; margin: 20px 0; }
        h2 { font-size: clamp(1.3rem, 5.2vw, 1.8rem); line-height: 1.25; margin-top: 2rem; border-left: 4px solid var(--brand-primary); padding-left: 12px; }
        h3 { font-size: clamp(1.05rem, 4.2vw, 1.25rem); line-height: 1.3; }
        .hero-banner { aspect-ratio: 2/1; width: 100%; overflow: hidden; border-radius: 0; }
        .hero-banner img { width: 100%; height: 100%; object-fit: cover; }
        .card-grid { display: grid; gap: 16px; margin-block: 20px; }
        .card { 
            background-color: var(--bg-surface); 
            border-radius: 16px; 
            overflow: hidden; 
            text-decoration: none; 
            color: inherit; 
            border: 1px solid var(--border-default); 
            transition: transform 0.2s ease; 
        }
        .card:hover { transform: translateY(-4px); border-color: var(--brand-primary); }
        .card img { width: 100%; aspect-ratio: 1/1; object-fit: cover; }
        .card-content { padding: 12px; }
        .card-content h3 { margin: 0 0 8px 0; font-size: 16px; }
        .category-grid { display: grid; gap: 12px; margin-block: 20px; }
        .cat-tile { 
            background-color: var(--bg-elevated); 
            padding: 16px; 
            border-radius: 12px; 
            text-decoration: none; 
            color: inherit; 
            text-align: center; 
            border: 1px solid var(--border-default); 
        }
        .cat-tile i { font-size: 24px; color: var(--brand-primary); margin-bottom: 8px; }
        .cat-tile span { display: block; font-weight: 600; margin-bottom: 4px; }
        .cat-tile p { font-size: 12px; color: var(--text-secondary); margin: 0; }
        .fact-table { width: 100%; border-collapse: collapse; margin-block: 16px; background-color: var(--bg-surface); border-radius: 12px; 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%; }
        .toc-nav { 
            display: flex; 
            overflow-x: auto; 
            gap: 12px; 
            padding-block: 16px; 
            scrollbar-width: none; 
            -ms-overflow-style: none; 
        }
        .toc-nav::-webkit-scrollbar { display: none; }
        .toc-link { 
            background-color: var(--bg-elevated); 
            color: var(--text-primary); 
            text-decoration: none; 
            padding: 8px 16px; 
            border-radius: 20px; 
            white-space: nowrap; 
            font-size: 14px; 
            border: 1px solid var(--border-default); 
        }
        .announcement-item { 
            display: flex; 
            gap: 12px; 
            padding: 16px; 
            background-color: var(--bg-surface); 
            border-radius: 12px; 
            margin-bottom: 12px; 
            border-left: 4px solid var(--brand-primary); 
        }
        .announcement-item i { color: var(--brand-primary); font-size: 20px; }
        .announcement-content h3 { margin: 0 0 4px 0; font-size: 16px; }
        .announcement-content p { margin: 0 0 8px 0; font-size: 14px; color: var(--text-secondary); }
        .announcement-date { font-size: 12px; color: var(--text-muted); }
        .usp-grid { display: grid; gap: 16px; margin-block: 20px; }
        .usp-card { 
            background-color: var(--bg-surface); 
            padding: 20px; 
            border-radius: 16px; 
            display: flex; 
            gap: 16px; 
            align-items: flex-start; 
            border: 1px solid var(--border-default); 
        }
        .usp-card i { font-size: 24px; color: var(--brand-primary); }
        .promo-card { 
            background-color: var(--bg-surface); 
            padding: 24px; 
            border-radius: 16px; 
            margin-bottom: 16px; 
            border: 1px solid var(--border-strong); 
        }
        .promo-card h3 { margin-top: 0; color: var(--brand-primary); }
        .payment-grid { display: grid; gap: 16px; margin-block: 20px; }
        .payment-card { 
            background-color: var(--bg-surface); 
            padding: 20px; 
            border-radius: 16px; 
            text-align: center; 
            border: 1px solid var(--border-default); 
        }
        .payment-card i { font-size: 32px; color: var(--brand-primary); margin-bottom: 12px; }
        .step-item { 
            display: flex; 
            gap: 16px; 
            margin-bottom: 24px; 
            align-items: flex-start; 
        }
        .step-num { 
            background-color: var(--brand-primary); 
            color: var(--text-contrast); 
            width: 32px; 
            height: 32px; 
            border-radius: 50%; 
            display: flex; 
            align-items: center; 
            justify-content: center; 
            font-weight: bold; 
            flex-shrink: 0; 
        }
        .provider-grid { display: grid; gap: 16px; margin-block: 20px; }
        .provider-card { 
            background-color: var(--bg-surface); 
            padding: 16px; 
            border-radius: 12px; 
            text-align: center; 
            border: 1px solid var(--border-default); 
        }
        .guide-item { margin-bottom: 24px; }
        .guide-meta { font-size: 13px; color: var(--text-secondary); font-style: italic; margin-bottom: 8px; display: block; }
        .article-card { 
            display: flex; 
            gap: 16px; 
            background-color: var(--bg-surface); 
            border-radius: 16px; 
            overflow: hidden; 
            text-decoration: none; 
            color: inherit; 
            margin-bottom: 16px; 
            border: 1px solid var(--border-default); 
        }
        .article-img { width: 120px; aspect-ratio: 4/3; object-fit: cover; }
        .article-text { padding: 12px; }
        .article-text h3 { margin: 0 0 8px 0; font-size: 16px; }
        .article-text p { margin: 0; font-size: 14px; color: var(--text-secondary); }
        .vip-grid { display: grid; gap: 16px; margin-block: 20px; }
        .vip-card { 
            background-color: var(--bg-elevated); 
            padding: 20px; 
            border-radius: 16px; 
            text-align: center; 
            border: 1px solid var(--border-strong); 
        }
        .vip-card h3 { color: var(--brand-primary); margin-bottom: 12px; }
        .faq-item { margin-bottom: 16px; }
        .faq-item summary { 
            background-color: var(--bg-surface); 
            padding: 16px; 
            border-radius: 12px; 
            cursor: pointer; 
            font-weight: 600; 
            border: 1px solid var(--border-default); 
        }
        .faq-item p { padding: 16px; background-color: var(--bg-elevated); border-radius: 0 0 12px 12px; border: 1px solid var(--border-default); border-top: none; }
        .trust-card { background-color: var(--bg-surface); padding: 24px; border-radius: 16px; border: 1px solid var(--brand-primary); margin-top: 24px; }
        .sitemap-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; margin-bottom: 30px; }
        .sitemap-link { color: var(--text-secondary); text-decoration: none; font-size: 14px; }
        .sitemap-link:hover { color: var(--brand-primary); }
        section { content-visibility: auto; contain-intrinsic-size: 1px 500px; }

        @media (min-width: 768px) {
            body { padding-inline: 24px; padding-bottom: 24px; }
            .card-grid { grid-template-columns: repeat(2, 1fr); }
            .category-grid { grid-template-columns: repeat(3, 1fr); }
            .navigator { display: none; }
            .payment-grid { grid-template-columns: repeat(3, 1fr); }
            .provider-grid { grid-template-columns: repeat(2, 1fr); }
            .vip-grid { grid-template-columns: repeat(2, 1fr); }
        }
        @media (min-width: 1200px) {
            body { padding-inline: 32px; max-width: 1200px; margin-inline: auto; }
            .card-grid { grid-template-columns: repeat(4, 1fr); }
            .category-grid { grid-template-columns: repeat(3, 1fr); }
            .payment-grid { grid-template-columns: repeat(4, 1fr); }
            .vip-grid { grid-template-columns: repeat(4, 1fr); }
        }