:root { --primary: rgb(0, 122, 255); --text-main: #1d1d1f; --text-muted: #86868b; --bg-body: #ffffff; --bg-gray: #f5f5f7; --border-color: #e5e5ea; --shadow-sm: 0 2px 8px rgba(0,0,0,0.04); }
        * { margin: 0; padding: 0; box-sizing: border-box; }
        body { font-family: -apple-system, sans-serif; color: var(--text-main); background: var(--bg-gray); line-height: 1.6; }
        a { text-decoration: none; color: inherit; transition: 0.3s; }
        img { max-width: 100%; height: auto; display: block; }
        ul, li { list-style: none; }
        .container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
        
        
        .header { position: sticky; top: 0; z-index: 100; background: rgba(255,255,255,0.9); backdrop-filter: blur(10px); border-bottom: 1px solid var(--border-color); }
        .header .container { display: flex; align-items: center; justify-content: space-between; height: 70px; }
        .logo { display: inline-flex; align-items: center; gap: 12px; }
        .logo img { display: block; height: 36px; width: auto; max-width: 160px; object-fit: contain; }
        .logo span { font-size: 20px; font-weight: 800; color: var(--text-main); white-space: nowrap; }
        .desktop-nav { display: flex; gap: 30px; align-items: center; }
        .desktop-nav a { font-size: 15px; font-weight: 500; }
        .desktop-nav a:hover { color: var(--primary); }
        .mobile-toggle { display: none; cursor: pointer; padding: 10px; }
        .mobile-toggle span { display: block; width: 24px; height: 2px; background: var(--text-main); margin: 5px 0; }
        
        
        .drawer-overlay { position: fixed; top: 0; left: 0; width: 100%; height: 100%; background: rgba(0,0,0,0.5); opacity: 0; visibility: hidden; z-index: 998; transition: 0.3s; }
        .drawer { position: fixed; top: 0; left: -300px; width: 280px; height: 100%; background: #fff; z-index: 999; transition: 0.3s; display: flex; flex-direction: column; }
        .drawer.active { left: 0; }
        .drawer-overlay.active { opacity: 1; visibility: visible; }
        .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; }
        .drawer-body { padding: 20px; overflow-y: auto; flex: 1; }
        .drawer-body a { display: block; padding: 12px 0; font-size: 16px; font-weight: 500; border-bottom: 1px solid var(--border-color); }

        
        .page-banner { background: #fff; padding: 60px 0; border-bottom: 1px solid var(--border-color); margin-bottom: 40px; text-align: center; }
        .breadcrumb { font-size: 14px; color: var(--text-muted); margin-bottom: 16px; }
        .breadcrumb a { color: var(--text-main); font-weight: 500; }
        .breadcrumb a:hover { color: var(--primary); }
        .page-title { font-size: 32px; font-weight: 800; }
        
        .list-layout { display: grid; grid-template-columns: 1fr 300px; gap: 40px; margin-bottom: 60px; }
        .grid-articles { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
        .post-card { background: #fff; border-radius: 12px; overflow: hidden; box-shadow: var(--shadow-sm); display: flex; flex-direction: column; transition: 0.3s; }
        .post-card:hover { transform: translateY(-3px); box-shadow: 0 8px 24px rgba(0,0,0,0.08); }
        .post-card .thumb { width: 100%; height: 200px; overflow: hidden; }
        .post-card .thumb img { width: 100%; height: 100%; object-fit: cover; }
        .post-card .info { padding: 24px; flex: 1; display: flex; flex-direction: column; }
        .post-card h3 { font-size: 18px; margin-bottom: 12px; line-height: 1.4; }
        .post-card p { font-size: 14px; color: var(--text-muted); margin-bottom: 16px; flex: 1; }
        .meta { display: flex; justify-content: space-between; font-size: 13px; color: var(--text-muted); border-top: 1px solid var(--border-color); padding-top: 16px; }
        .meta-tags span { background: rgba(0,122,255,0.1); color: var(--primary); padding: 2px 8px; border-radius: 4px; margin-right: 8px; }
        
        .sidebar { background: #fff; border-radius: 12px; padding: 24px; height: fit-content; box-shadow: var(--shadow-sm); }
        .sidebar h4 { font-size: 18px; margin-bottom: 20px; padding-bottom: 10px; border-bottom: 2px solid var(--primary); display: inline-block; }
        
        .pagination { display: flex; justify-content: center; gap: 10px; margin-top: 40px; }
        .pagination a, .pagination span { display: inline-flex; width: 40px; height: 40px; align-items: center; justify-content: center; background: #fff; border-radius: 8px; font-weight: 500; border: 1px solid var(--border-color); }
        .pagination a:hover { border-color: var(--primary); color: var(--primary); }
        .pagination .current { background: var(--primary); color: #fff; border-color: var(--primary); }
        
        
        .footer { background: #111; color: #fff; padding: 60px 0 30px; }
        .footer-widgets { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 40px; }
        .footer .logo span { color: #fff; }
        .widget-title { font-size: 16px; font-weight: 600; margin-bottom: 20px; color: #fff; }
        .widget-links li { margin-bottom: 12px; }
        .widget-links a { color: #a1a1aa; font-size: 14px; }
        .footer-bottom { border-top: 1px solid #333; padding-top: 24px; display: flex; justify-content: space-between; align-items: center; font-size: 14px; color: #a1a1aa; }
        
        @media (max-width: 992px) {
            .list-layout { grid-template-columns: 1fr; }
        }
        @media (max-width: 768px) {
            .desktop-nav { display: none; }
            .mobile-toggle { display: block; }
            .grid-articles { grid-template-columns: 1fr; }
            .footer-widgets { grid-template-columns: 1fr; }
            .footer-bottom { flex-direction: column; gap: 16px; text-align: center; }
        }