:root {
            --primary: rgb(66,133,244);
            --primary-hover: #3367d6;
            --primary-light: rgba(66,133,244,0.08);
            --text-main: #1a1f36;
            --text-muted: #697386;
            --bg-body: #f7f9fc;
            --bg-surface: #ffffff;
            --border-color: #e3e8ee;
            --radius-md: 8px;
            --radius-lg: 16px;
            --shadow-sm: 0 2px 4px rgba(0,0,0,0.04);
            --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
            --shadow-hover: 0 12px 24px rgba(66,133,244,0.12);
            --container-width: 1240px;
        }
        * { box-sizing: border-box; margin: 0; padding: 0; }
        body { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif; background-color: var(--bg-body); color: var(--text-main); line-height: 1.6; }
        a { text-decoration: none; color: inherit; transition: all 0.3s ease; }
        ul { list-style: none; }
        img { max-width: 100%; height: auto; display: block; }
        .container { max-width: var(--container-width); margin: 0 auto; padding: 0 20px; }
        
        
        h1, h2, h3, h4 { line-height: 1.3; font-weight: 700; color: var(--text-main); }
        .text-primary { color: var(--primary); }
        
        
        .btn { display: inline-flex; align-items: center; justify-content: center; padding: 10px 24px; font-size: 15px; font-weight: 600; border-radius: var(--radius-md); transition: all 0.3s; cursor: pointer; border: 1px solid transparent; }
        .btn-primary { background-color: var(--primary); color: #fff; box-shadow: 0 4px 10px rgba(66,133,244,0.3); }
        .btn-primary:hover { background-color: var(--primary-hover); transform: translateY(-2px); box-shadow: 0 6px 15px rgba(66,133,244,0.4); }
        .btn-outline { border-color: var(--primary); color: var(--primary); background: transparent; }
        .btn-outline:hover { background-color: var(--primary-light); }
        
        
        .site-header { background: rgba(255, 255, 255, 0.95); backdrop-filter: blur(10px); position: sticky; top: 0; z-index: 100; border-bottom: 1px solid var(--border-color); }
        .header-inner { display: flex; align-items: center; justify-content: space-between; height: 72px; }
        .logo { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; }
        .logo img { display: block; height: 36px; width: auto; max-width: 160px; object-fit: contain; flex-shrink: 0; }
        .logo span { display: inline-block; font-size: 20px; font-weight: 800; line-height: 1; color: var(--text-main); white-space: nowrap; letter-spacing: -0.5px; }
        
        
        .desktop-nav { flex: 1; margin: 0 40px; display: flex; justify-content: flex-end; }
        .desktop-nav ul { display: flex; gap: 30px; align-items: center; }
        .desktop-nav a { font-size: 15px; font-weight: 500; color: var(--text-muted); position: relative; padding: 5px 0; }
        .desktop-nav a:hover { color: var(--primary); }
        .desktop-nav a::after { content: ''; position: absolute; bottom: 0; left: 0; width: 0; height: 2px; background: var(--primary); transition: width 0.3s; }
        .desktop-nav a:hover::after { width: 100%; }
        
        
        .header-actions { display: flex; align-items: center; gap: 16px; }
        .mobile-toggle { display: none; background: none; border: none; cursor: pointer; color: var(--text-main); padding: 5px; }
        
        
        .drawer-overlay { position: fixed; inset: 0; background: rgba(0,0,0,0.5); z-index: 998; opacity: 0; visibility: hidden; transition: all 0.3s; }
        .drawer-overlay.active { opacity: 1; visibility: visible; }
        .drawer { position: fixed; top: 0; left: -300px; width: 280px; height: 100vh; background: #fff; z-index: 999; transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1); display: flex; flex-direction: column; box-shadow: 2px 0 12px rgba(0,0,0,0.1); }
        .drawer.active { transform: translateX(300px); }
        .drawer-header { padding: 20px; display: flex; align-items: center; justify-content: space-between; border-bottom: 1px solid var(--border-color); }
        .drawer-close { background: none; border: none; cursor: pointer; color: var(--text-muted); padding: 5px; }
        .drawer-body { flex: 1; overflow-y: auto; padding: 20px 0; }
        .drawer-nav li a { display: block; padding: 12px 20px; font-size: 16px; font-weight: 500; color: var(--text-main); border-left: 3px solid transparent; }
        .drawer-nav li a:hover { background: var(--primary-light); color: var(--primary); border-left-color: var(--primary); }
        .drawer-footer { padding: 20px; border-top: 1px solid var(--border-color); }

        
        .hero { padding: 80px 0; background: linear-gradient(135deg, #f0f4ff 0%, #ffffff 100%); position: relative; overflow: hidden; }
        .hero::before { content: ''; position: absolute; top: -50%; right: -10%; width: 600px; height: 600px; background: radial-gradient(circle, var(--primary-light) 0%, transparent 70%); border-radius: 50%; z-index: 0; }
        .hero-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; position: relative; z-index: 1; }
        .hero-content h1 { font-size: 46px; margin-bottom: 20px; letter-spacing: -1px; }
        .hero-content p { font-size: 18px; color: var(--text-muted); margin-bottom: 30px; max-width: 90%; }
        .hero-actions { display: flex; gap: 16px; }
        .hero-visual { position: relative; }
        .hero-visual img { border-radius: var(--radius-lg); box-shadow: var(--shadow-md); }
        .hero-badge { position: absolute; bottom: -20px; left: -20px; background: #fff; padding: 16px 24px; border-radius: var(--radius-md); box-shadow: var(--shadow-md); display: flex; align-items: center; gap: 12px; }
        .hero-badge .icon { width: 40px; height: 40px; background: var(--primary-light); color: var(--primary); border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: bold; }

        
        .data-bar { background: #fff; border-bottom: 1px solid var(--border-color); padding: 30px 0; }
        .data-grid { display: flex; justify-content: space-between; text-align: center; }
        .data-item { flex: 1; position: relative; }
        .data-item:not(:last-child)::after { content: ''; position: absolute; right: 0; top: 10%; height: 80%; width: 1px; background: var(--border-color); }
        .data-value { font-size: 32px; font-weight: 800; color: var(--primary); margin-bottom: 5px; }
        .data-label { font-size: 14px; color: var(--text-muted); }

        
        .features { padding: 80px 0; }
        .section-header { text-align: center; margin-bottom: 50px; }
        .section-header h2 { font-size: 32px; margin-bottom: 12px; }
        .section-header p { color: var(--text-muted); font-size: 16px; }
        .feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }
        .feature-card { background: #fff; padding: 40px 30px; border-radius: var(--radius-lg); box-shadow: var(--shadow-sm); transition: all 0.3s; text-align: center; border: 1px solid transparent; }
        .feature-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-hover); border-color: var(--primary-light); }
        .feature-icon { width: 64px; height: 64px; background: var(--primary-light); color: var(--primary); border-radius: 16px; display: inline-flex; align-items: center; justify-content: center; margin-bottom: 24px; font-size: 24px; }
        .feature-card h3 { font-size: 20px; margin-bottom: 12px; }
        .feature-card p { color: var(--text-muted); font-size: 14px; }

        
        .content-hub { padding: 80px 0; background: #fff; }
        .hub-grid { display: grid; grid-template-columns: 350px 1fr; gap: 40px; }
        .hub-sidebar { background: var(--bg-body); padding: 30px; border-radius: var(--radius-lg); }
        .hub-title { font-size: 20px; margin-bottom: 20px; display: flex; align-items: center; gap: 8px; padding-bottom: 15px; border-bottom: 2px solid var(--border-color); }
        .hub-title span { color: var(--primary); }
        .hot-list { display: flex; flex-direction: column; gap: 20px; }
        .hot-item { display: flex; gap: 12px; align-items: flex-start; }
        .hot-rank { font-size: 18px; font-weight: 800; color: #cbd5e1; min-width: 24px; }
        .hot-item:nth-child(1) .hot-rank { color: #ef4444; }
        .hot-item:nth-child(2) .hot-rank { color: #f97316; }
        .hot-item:nth-child(3) .hot-rank { color: #eab308; }
        .hot-content h4 { font-size: 15px; margin-bottom: 6px; font-weight: 600; line-height: 1.4; }
        .hot-content h4 a:hover { color: var(--primary); }
        .hot-meta { font-size: 12px; color: var(--text-muted); }

        .article-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
        .article-card { background: #fff; border-radius: var(--radius-md); overflow: hidden; border: 1px solid var(--border-color); transition: all 0.3s; display: flex; flex-direction: column; }
        .article-card:hover { box-shadow: var(--shadow-md); border-color: var(--primary-light); }
        .article-img { width: 100%; height: 180px; position: relative; overflow: hidden; }
        .article-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s; }
        .article-card:hover .article-img img { transform: scale(1.05); }
        .article-tag-badge { position: absolute; top: 12px; left: 12px; background: rgba(0,0,0,0.6); color: #fff; padding: 4px 10px; font-size: 12px; border-radius: 4px; backdrop-filter: blur(4px); }
        .article-info { padding: 20px; flex: 1; display: flex; flex-direction: column; }
        .article-title { font-size: 18px; margin-bottom: 10px; line-height: 1.4; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
        .article-title a:hover { color: var(--primary); }
        .article-desc { font-size: 14px; color: var(--text-muted); margin-bottom: 16px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; flex: 1; }
        .article-meta { display: flex; justify-content: space-between; align-items: center; font-size: 13px; color: var(--text-muted); border-top: 1px solid #f1f5f9; padding-top: 12px; }
        .article-meta-left { display: flex; gap: 12px; align-items: center; }

        
        .trust-cta { padding: 80px 0; background: var(--primary); color: #fff; text-align: center; }
        .trust-cta h2 { color: #fff; font-size: 36px; margin-bottom: 20px; }
        .trust-cta p { font-size: 18px; opacity: 0.9; margin-bottom: 40px; max-width: 600px; margin-left: auto; margin-right: auto; }
        .btn-white { background: #fff; color: var(--primary); }
        .btn-white:hover { background: #f8fafc; transform: translateY(-2px); box-shadow: 0 4px 12px rgba(0,0,0,0.1); }

        
        .site-footer { background: #1a1d20; color: #9ca3af; padding: 60px 0 20px; }
        .footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1.5fr; gap: 40px; margin-bottom: 40px; }
        .footer-logo span { color: #fff; }
        .footer-desc { margin-top: 16px; font-size: 14px; line-height: 1.8; padding-right: 20px; }
        .footer-title { color: #fff; font-size: 16px; margin-bottom: 20px; font-weight: 600; }
        .footer-links ul { display: flex; flex-direction: column; gap: 12px; }
        .footer-links a { color: #9ca3af; font-size: 14px; }
        .footer-links a:hover { color: var(--primary); padding-left: 5px; }
        .footer-contact p { font-size: 14px; margin-bottom: 10px; display: flex; align-items: center; gap: 8px; }
        .footer-bottom { text-align: center; padding-top: 20px; border-top: 1px solid rgba(255,255,255,0.1); font-size: 13px; }
        .footer-bottom a { color: #9ca3af; }
        .footer-bottom a:hover { color: #fff; }

        @media (max-width: 1024px) {
            .hero-grid { grid-template-columns: 1fr; text-align: center; }
            .hero-content p { margin: 0 auto 30px; }
            .hero-actions { justify-content: center; }
            .hero-badge { display: none; }
            .feature-grid { grid-template-columns: repeat(2, 1fr); }
            .hub-grid { grid-template-columns: 1fr; }
            .footer-grid { grid-template-columns: 1fr 1fr; }
        }
        @media (max-width: 768px) {
            .desktop-nav, .header-actions .btn { display: none; }
            .mobile-toggle { display: block; }
            .data-grid { flex-direction: column; gap: 20px; }
            .data-item:not(:last-child)::after { display: none; }
            .feature-grid { grid-template-columns: 1fr; }
            .article-grid { grid-template-columns: 1fr; }
            .footer-grid { grid-template-columns: 1fr; }
            .hero-content h1 { font-size: 36px; }
        }