:root {
            --primary: rgb(24, 119, 242);
            --primary-dark: rgb(18, 90, 184);
            --primary-light: rgba(24, 119, 242, 0.08);
            --text-main: #1a1a1a;
            --text-sub: #666666;
            --bg-body: #f7f9fc;
            --border-color: #eaeaea;
            --radius: 12px;
            --shadow: 0 4px 20px rgba(0,0,0,0.05);
        }
        * { margin: 0; padding: 0; box-sizing: border-box; }
        body { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif; background: var(--bg-body); color: var(--text-main); line-height: 1.6; }
        a { text-decoration: none; color: inherit; transition: all 0.3s ease; }
        ul, li { list-style: none; }
        img { max-width: 100%; height: auto; display: block; }
        
        
        .header { background: rgba(255, 255, 255, 0.95); backdrop-filter: blur(10px); position: fixed; top: 0; left: 0; right: 0; z-index: 1000; box-shadow: 0 2px 10px rgba(0,0,0,0.05); }
        .header-container { max-width: 1200px; margin: 0 auto; display: flex; align-items: center; justify-content: space-between; height: 70px; padding: 0 20px; }
        .logo { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; }
        .logo img { display: block; height: 36px; width: auto; max-width: 150px; object-fit: contain; flex-shrink: 0; }
        .logo span { display: inline-block; font-size: 22px; font-weight: 800; color: var(--primary); white-space: nowrap; letter-spacing: 1px; }
        .nav-desktop { display: flex; gap: 30px; align-items: center; }
        .nav-desktop a { font-size: 16px; font-weight: 500; position: relative; padding: 5px 0; }
        .nav-desktop a:hover { color: var(--primary); }
        .nav-desktop a::after { content: ''; position: absolute; bottom: 0; left: 0; width: 0; height: 2px; background: var(--primary); transition: width 0.3s; }
        .nav-desktop a:hover::after { width: 100%; }
        .nav-actions { display: flex; align-items: center; gap: 15px; }
        .btn-app { background: var(--primary); color: #fff; padding: 8px 20px; border-radius: 20px; font-weight: 600; font-size: 14px; }
        .btn-app:hover { background: var(--primary-dark); }
        .menu-toggle { display: none; font-size: 24px; cursor: pointer; }
        
        .mobile-mask { position: fixed; inset: 0; background: rgba(0,0,0,0.5); z-index: 1001; opacity: 0; visibility: hidden; transition: 0.3s; }
        .mobile-mask.active { opacity: 1; visibility: visible; }
        .mobile-drawer { position: fixed; top: 0; left: -300px; bottom: 0; width: 280px; background: #fff; z-index: 1002; transition: left 0.3s ease; display: flex; flex-direction: column; }
        .mobile-drawer.active { left: 0; }
        .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; color: var(--text-sub); }
        .drawer-nav { padding: 20px; flex: 1; overflow-y: auto; }
        .drawer-nav a { display: block; padding: 15px 0; font-size: 16px; font-weight: 500; border-bottom: 1px dashed var(--border-color); }
        .drawer-nav a:hover { color: var(--primary); padding-left: 10px; }

        
        .page-banner { margin-top: 70px; background: linear-gradient(rgba(0,21,41,0.8), rgba(0,21,41,0.9)), url('https://images.unsplash.com/photo-1642543492481-44e81e3914a7?auto=format&fit=crop&w=1920&q=80') center/cover; padding: 60px 20px; text-align: center; color: #fff; }
        .page-banner h1 { font-size: 36px; font-weight: 800; margin-bottom: 15px; }
        .breadcrumb { font-size: 14px; opacity: 0.8; }
        .breadcrumb a:hover { color: var(--primary); text-decoration: underline; }

        .list-container { max-width: 1200px; margin: 40px auto; display: flex; gap: 30px; padding: 0 20px; }
        .list-main { flex: 3; }
        .list-sidebar { flex: 1; display: flex; flex-direction: column; gap: 30px; }

        .grid-articles { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
        .art-card { background: #fff; border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); transition: all 0.3s; border: 1px solid transparent; }
        .art-card:hover { border-color: var(--primary); transform: translateY(-5px); }
        .art-img { width: 100%; height: 200px; overflow: hidden; display: block; }
        .art-img img { width: 100%; height: 100%; object-fit: cover; transition: 0.5s; }
        .art-card:hover .art-img img { transform: scale(1.05); }
        .art-info { padding: 20px; }
        .art-info h3 { font-size: 18px; margin-bottom: 10px; line-height: 1.4; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
        .art-info h3 a:hover { color: var(--primary); }
        .art-desc { font-size: 14px; color: var(--text-sub); margin-bottom: 15px; display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
        .art-meta { display: flex; justify-content: space-between; align-items: center; font-size: 12px; color: #999; border-top: 1px solid var(--border-color); padding-top: 15px; }
        .tags-badge { background: var(--primary-light); color: var(--primary); padding: 3px 8px; border-radius: 4px; }

        
        .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; border-radius: 50%; background: #fff; border: 1px solid var(--border-color); font-weight: 500; transition: 0.3s; }
        .pagination a:hover { border-color: var(--primary); color: var(--primary); }
        .pagination .current { background: var(--primary); color: #fff; border-color: var(--primary); }

        
        .widget { background: #fff; border-radius: var(--radius); padding: 20px; box-shadow: var(--shadow); }
        .widget-title { font-size: 18px; font-weight: 700; border-left: 4px solid var(--primary); padding-left: 15px; margin-bottom: 20px; color: var(--text-main); }
        .widget-banner { background: var(--primary); color: #fff; padding: 25px 20px; border-radius: var(--radius); text-align: center; }
        .widget-banner h4 { font-size: 20px; margin-bottom: 10px; }
        .widget-banner p { font-size: 13px; opacity: 0.9; margin-bottom: 15px; }
        .widget-banner .btn { display: inline-block; background: #fff; color: var(--primary); padding: 8px 20px; border-radius: 20px; font-weight: bold; }

        
        .footer { background: #001529; color: #a0aec0; padding: 60px 20px 20px; margin-top: 60px; }
        .footer-grid { max-width: 1200px; margin: 0 auto; display: grid; grid-template-columns: 2fr 1fr 1fr 1.5fr; gap: 40px; margin-bottom: 40px; }
        .footer-brand .logo span { color: #fff; }
        .footer-brand p { margin-top: 20px; font-size: 14px; line-height: 1.8; }
        .footer-title { color: #fff; font-size: 18px; font-weight: 600; margin-bottom: 20px; padding-bottom: 10px; border-bottom: 2px solid var(--primary); display: inline-block;}
        .footer-links li { margin-bottom: 12px; }
        .footer-links a:hover { color: #fff; }
        .footer-bottom { max-width: 1200px; margin: 0 auto; border-top: 1px solid rgba(255,255,255,0.1); padding-top: 20px; display: flex; justify-content: space-between; font-size: 13px; }
        .footer-bottom-links { display: flex; gap: 15px; }

        @media (max-width: 992px) {
            .nav-desktop, .nav-actions { display: none; }
            .menu-toggle { display: block; }
            .list-container { flex-direction: column; }
            .footer-grid { grid-template-columns: repeat(2, 1fr); }
        }
        @media (max-width: 768px) {
            .grid-articles { grid-template-columns: 1fr; }
            .footer-grid { grid-template-columns: 1fr; }
            .footer-bottom { flex-direction: column; text-align: center; gap: 10px; }
        }