:root {
            --primary: rgb(48,209,88);
            --primary-dark: rgb(38,180,75);
            --bg-color: #f8f9fc;
            --text-main: #2c3e50;
            --text-light: #64748b;
            --white: #ffffff;
            --border-color: #e2e8f0;
        }
        * { margin: 0; padding: 0; box-sizing: border-box; font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif; }
        body { background-color: var(--bg-color); color: var(--text-main); line-height: 1.6; }
        a { text-decoration: none; color: inherit; }
        ul { list-style: none; }
        .container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
        
        .logo { display: inline-flex; align-items: center; gap: 12px; text-decoration: none; }
        .logo img { display: block; height: 40px; width: auto; max-width: 160px; object-fit: contain; flex-shrink: 0; }
        .logo span { display: inline-block; font-size: 22px; font-weight: 800; line-height: 1; color: #111; white-space: nowrap; }
        
        .header { background: var(--white); box-shadow: 0 2px 10px rgba(0,0,0,0.05); position: sticky; top: 0; z-index: 100; }
        .header-inner { display: flex; justify-content: space-between; align-items: center; height: 80px; }
        .desktop-nav { display: flex; gap: 30px; }
        .desktop-nav a { font-weight: 500; font-size: 16px; transition: color 0.3s; }
        .desktop-nav a:hover { color: var(--primary); }
        .mobile-toggle { display: none; background: none; border: none; cursor: pointer; }
        .mobile-toggle svg { width: 28px; height: 28px; fill: var(--text-main); }
        
        .drawer-overlay { position: fixed; inset: 0; background: rgba(0,0,0,0.5); opacity: 0; visibility: hidden; transition: 0.3s; z-index: 200; }
        .drawer-overlay.active { opacity: 1; visibility: visible; }
        .drawer { position: fixed; top: 0; left: -300px; width: 280px; height: 100%; background: var(--white); z-index: 201; transition: 0.3s; display: flex; flex-direction: column; }
        .drawer.active { left: 0; }
        .drawer-header { padding: 20px; display: flex; justify-content: space-between; align-items: center; border-bottom: 1px solid var(--border-color); }
        .drawer-close { background: none; border: none; cursor: pointer; }
        .drawer-close svg { width: 24px; height: 24px; fill: var(--text-main); }
        .drawer-nav { padding: 20px; display: flex; flex-direction: column; gap: 15px; overflow-y: auto; }
        .drawer-nav a { font-size: 16px; font-weight: 500; padding: 10px 0; border-bottom: 1px solid #f1f5f9; display: block; }

        .article-layout { display: flex; gap: 40px; padding: 40px 0; align-items: flex-start; }
        .article-main { flex: 1; min-width: 0; background: var(--white); padding: 40px; border-radius: 12px; box-shadow: 0 5px 20px rgba(0,0,0,0.03); border: 1px solid var(--border-color); }
        .breadcrumb { font-size: 14px; color: var(--text-light); margin-bottom: 20px; }
        .breadcrumb a { color: var(--primary); }
        .breadcrumb a:hover { text-decoration: underline; }
        
        .art-header { margin-bottom: 30px; border-bottom: 1px solid var(--border-color); padding-bottom: 20px; }
        .art-title { font-size: 32px; font-weight: 800; color: #111; margin-bottom: 15px; line-height: 1.4; }
        .art-meta { display: flex; flex-wrap: wrap; gap: 20px; font-size: 14px; color: var(--text-light); }
        .art-meta span { display: inline-flex; align-items: center; gap: 5px; }
        
        .art-content { font-size: 16px; line-height: 1.8; color: #334155; margin-bottom: 40px; overflow-wrap: break-word; }
        .art-content img { max-width: 100%; height: auto; border-radius: 8px; margin: 20px 0; }
        .art-content p { margin-bottom: 20px; }
        .art-content h2, .art-content h3 { margin: 30px 0 15px; color: #111; }
        
        .art-tags { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 30px; }
        .art-tags a { background: rgba(48,209,88,0.1); color: var(--primary); padding: 6px 12px; border-radius: 4px; font-size: 14px; transition: 0.3s; }
        .art-tags a:hover { background: var(--primary); color: var(--white); }
        
        .art-nav { display: flex; justify-content: space-between; border-top: 1px solid var(--border-color); padding-top: 20px; gap: 20px; }
        .art-nav a { flex: 1; font-size: 15px; color: var(--text-light); background: var(--bg-color); padding: 15px; border-radius: 8px; transition: 0.3s; text-decoration: none; display: flex; flex-direction: column; }
        .art-nav a span { font-size: 12px; color: #94a3b8; margin-bottom: 5px; }
        .art-nav a:hover { background: rgba(48,209,88,0.05); color: var(--primary); }
        .art-nav .next { text-align: right; }

        .related-sec { margin-top: 40px; }
        .related-title { font-size: 20px; font-weight: 700; margin-bottom: 20px; border-left: 4px solid var(--primary); padding-left: 10px; }
        .related-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
        .rel-card { background: var(--white); border: 1px solid var(--border-color); border-radius: 8px; overflow: hidden; display: flex; transition: 0.3s; }
        .rel-card:hover { border-color: var(--primary); box-shadow: 0 5px 15px rgba(0,0,0,0.05); }
        .rel-img { width: 120px; height: 100px; object-fit: cover; }
        .rel-info { padding: 15px; flex: 1; display: flex; flex-direction: column; justify-content: center; }
        .rel-info h4 { font-size: 15px; margin-bottom: 5px; line-height: 1.4; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
        .rel-info span { font-size: 12px; color: var(--text-light); }

        .sidebar { width: 320px; flex-shrink: 0; }
        .side-widget { background: var(--white); border-radius: 12px; padding: 25px; margin-bottom: 30px; border: 1px solid var(--border-color); }
        .side-title { font-size: 18px; font-weight: 700; margin-bottom: 20px; border-bottom: 2px solid #f1f5f9; padding-bottom: 10px; position: relative; }
        .side-title::after { content: ''; position: absolute; left: 0; bottom: -2px; width: 40px; height: 2px; background: var(--primary); }
        .side-hot-list { display: flex; flex-direction: column; gap: 15px; }
        .side-hot-item { display: flex; gap: 15px; align-items: center; }
        .side-hot-img { width: 80px; height: 60px; object-fit: cover; border-radius: 6px; }
        .side-hot-info h4 { font-size: 14px; line-height: 1.4; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; transition: color 0.3s; }
        .side-hot-item:hover h4 { color: var(--primary); }
        .side-dl-banner { background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%); padding: 30px 20px; border-radius: 12px; color: var(--white); text-align: center; }
        .side-dl-banner h3 { font-size: 20px; margin-bottom: 10px; }
        .side-dl-banner p { font-size: 14px; opacity: 0.9; margin-bottom: 20px; }
        .side-dl-btn { background: var(--white); color: var(--primary); padding: 10px 20px; border-radius: 6px; font-weight: 600; display: inline-block; }

        .footer { background: #1e293b; color: #cbd5e1; padding: 60px 0 20px; }
        .footer-inner { display: flex; flex-wrap: wrap; gap: 40px; justify-content: space-between; margin-bottom: 40px; }
        .footer-brand { flex: 1; min-width: 300px; max-width: 400px; }
        .footer-brand .logo span { color: var(--white); }
        .footer-desc { margin-top: 20px; font-size: 14px; line-height: 1.8; }
        .footer-links { display: flex; gap: 60px; flex-wrap: wrap; }
        .link-group h4 { color: var(--white); font-size: 16px; font-weight: 600; margin-bottom: 20px; }
        .link-group ul { display: flex; flex-direction: column; gap: 12px; }
        .link-group a { font-size: 14px; transition: color 0.3s; }
        .link-group a:hover { color: var(--primary); }
        .footer-bottom { border-top: 1px solid rgba(255,255,255,0.1); padding-top: 20px; text-align: center; font-size: 13px; }

        @media (max-width: 992px) {
            .desktop-nav { display: none; }
            .mobile-toggle { display: block; }
            .article-layout { flex-direction: column; }
            .sidebar { width: 100%; }
            .related-grid { grid-template-columns: 1fr; }
            .art-main { padding: 20px; }
            .art-title { font-size: 24px; }
        }