:root { --primary: rgb(30,64,175); --primary-hover: rgb(25, 54, 150); --bg-body: #f4f6f9; --bg-white: #ffffff; --text-dark: #1a1a1a; --text-gray: #666666; --text-light: #999999; --border-color: #e5e7eb; --shadow: 0 4px 12px rgba(0,0,0,0.05); }
        * { margin: 0; padding: 0; box-sizing: border-box; }
        body { font-family: -apple-system, sans-serif; background-color: var(--bg-body); color: var(--text-dark); line-height: 1.6; }
        a { text-decoration: none; color: inherit; transition: color 0.3s; }
        ul { list-style: none; }
        img { max-width: 100%; height: auto; display: block; }
        .container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
        
        
        .header { background: var(--bg-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: 70px; }
        .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: 20px; font-weight: 800; line-height: 1; color: var(--text-dark); white-space: nowrap; }
        .nav-desktop { display: flex; gap: 30px; align-items: center; }
        .nav-desktop a { font-size: 16px; font-weight: 500; color: var(--text-dark); }
        .nav-desktop a:hover { color: var(--primary); }
        .menu-btn { display: none; font-size: 24px; cursor: pointer; background: none; border: none; }
        .btn { display: inline-block; padding: 10px 20px; background: var(--primary); color: #fff; border-radius: 6px; font-weight: 600; text-align: center; }
        
        
        .drawer-overlay { display: none; position: fixed; inset: 0; background: rgba(0,0,0,0.5); z-index: 998; opacity: 0; transition: opacity 0.3s; }
        .drawer { position: fixed; top: 0; left: -300px; width: 280px; height: 100%; background: var(--bg-white); z-index: 999; transition: left 0.3s ease; box-shadow: 2px 0 10px rgba(0,0,0,0.1); overflow-y: auto; }
        .drawer.active { left: 0; }
        .drawer-overlay.active { display: block; opacity: 1; }
        .drawer-header { padding: 20px; border-bottom: 1px solid var(--border-color); display: flex; justify-content: space-between; align-items: center; }
        .drawer-close { font-size: 24px; cursor: pointer; background: none; border: none; color: var(--text-gray); }
        .drawer-nav { padding: 20px; display: flex; flex-direction: column; gap: 15px; }
        .drawer-nav a { display: block; font-size: 16px; font-weight: 500; padding: 10px 0; border-bottom: 1px dashed var(--border-color); }
        
        .footer { background: #111827; color: #9ca3af; padding: 60px 0 20px; margin-top: 60px;}
        .footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 40px; }
        .footer-logo { margin-bottom: 20px; }
        .footer-logo .logo span { color: #fff; }
        .footer-desc { font-size: 14px; line-height: 1.8; margin-bottom: 20px; max-width: 300px; }
        .footer-title { color: #fff; font-size: 16px; font-weight: 600; margin-bottom: 20px; }
        .footer-links li { margin-bottom: 12px; }
        .footer-links a { font-size: 14px; }
        .footer-links a:hover { color: #fff; text-decoration: underline; }
        .footer-bottom { text-align: center; padding-top: 20px; border-top: 1px solid #374151; font-size: 13px; }

        @media (max-width: 992px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
        @media (max-width: 768px) { .nav-desktop { display: none; } .menu-btn { display: block; } .footer-grid { grid-template-columns: 1fr; } }

        
        .page-banner { background: linear-gradient(to right, var(--primary), #3b82f6); color: #fff; padding: 60px 0; text-align: center; }
        .page-title { font-size: 32px; font-weight: 700; margin-bottom: 15px; }
        .breadcrumb { font-size: 14px; opacity: 0.9; }
        .breadcrumb a { color: #fff; text-decoration: underline; }

        .list-layout { display: flex; gap: 40px; margin-top: 40px; }
        .list-main { flex: 1; }
        .list-sidebar { width: 300px; }
        
        .article-card { display: flex; background: var(--bg-white); border-radius: 8px; overflow: hidden; box-shadow: var(--shadow); margin-bottom: 25px; border: 1px solid var(--border-color); transition: transform 0.3s; }
        .article-card:hover { transform: translateY(-3px); box-shadow: 0 8px 20px rgba(0,0,0,0.08); }
        .article-img { width: 240px; flex-shrink: 0; background: #eee; }
        .article-img img { width: 100%; height: 100%; object-fit: cover; }
        .article-content { padding: 20px; display: flex; flex-direction: column; flex: 1; justify-content: space-between; }
        .article-title { font-size: 20px; font-weight: 600; margin-bottom: 10px; color: var(--text-dark); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
        .article-summary { color: var(--text-gray); font-size: 14px; margin-bottom: 15px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
        .article-meta { display: flex; gap: 15px; font-size: 12px; color: var(--text-light); }
        .article-tags { margin-top: 10px; display: flex; gap: 8px; }
        .article-tags span { background: var(--bg-body); padding: 3px 8px; border-radius: 4px; color: var(--primary); font-size: 12px; }

        
        .pagination { display: flex; justify-content: center; gap: 10px; margin-top: 40px; }
        .pagination a, .pagination span { display: inline-flex; align-items: center; justify-content: center; min-width: 36px; height: 36px; padding: 0 12px; border-radius: 4px; background: var(--bg-white); border: 1px solid var(--border-color); color: var(--text-dark); font-size: 14px; }
        .pagination a:hover { border-color: var(--primary); color: var(--primary); }
        .pagination .current { background: var(--primary); color: #fff; border-color: var(--primary); }
        .pagination .disabled { opacity: 0.5; cursor: not-allowed; }

        
        .widget { background: var(--bg-white); border-radius: 8px; padding: 20px; border: 1px solid var(--border-color); margin-bottom: 30px; box-shadow: var(--shadow); }
        .widget-title { font-size: 16px; font-weight: 700; margin-bottom: 15px; padding-bottom: 10px; border-bottom: 2px solid var(--primary); display: inline-block; }
        .widget-list li { margin-bottom: 12px; border-bottom: 1px dashed var(--border-color); padding-bottom: 12px; }
        .widget-list li:last-child { border-bottom: none; margin-bottom: 0; padding-bottom: 0; }
        .widget-list a { font-size: 14px; color: var(--text-dark); display: block; line-height: 1.4; }
        .widget-list a:hover { color: var(--primary); }

        @media (max-width: 768px) {
            .list-layout { flex-direction: column; }
            .list-sidebar { width: 100%; }
            .article-card { flex-direction: column; }
            .article-img { width: 100%; height: 200px; }
        }