:root { --primary: rgb(0,184,148); --primary-hover: rgb(0,150,120); --primary-light: rgba(0,184,148,0.1); --bg-body: #f8fafc; --bg-white: #ffffff; --text-main: #0f172a; --text-body: #334155; --text-muted: #64748b; --border-color: #e2e8f0; --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05); --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1); --radius-md: 8px; --radius-lg: 12px; --transition: all 0.3s ease; }
        * { margin: 0; padding: 0; box-sizing: border-box; }
        body { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif; background-color: var(--bg-body); color: var(--text-body); line-height: 1.6; }
        a { text-decoration: none; color: inherit; transition: var(--transition); }
        ul { list-style: none; }
        img { max-width: 100%; height: auto; display: block; }
        .container { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 20px; }
        
        
        .site-header { background: var(--bg-white); box-shadow: var(--shadow-sm); position: sticky; top: 0; z-index: 100; }
        .header-inner { display: flex; justify-content: space-between; align-items: center; height: 80px; }
        .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-main); white-space: nowrap; }
        .desktop-nav { display: none; }
        .desktop-nav a { padding: 8px 16px; font-weight: 500; color: var(--text-main); border-radius: var(--radius-md); }
        .desktop-nav a:hover { color: var(--primary); background: var(--primary-light); }
        @media (min-width: 992px) { .desktop-nav { display: flex; gap: 10px; align-items: center; } .mobile-menu-toggle { display: none; } }
        .btn { display: inline-flex; align-items: center; justify-content: center; padding: 10px 24px; font-weight: 600; border-radius: var(--radius-md); cursor: pointer; transition: var(--transition); }
        .btn-primary { background: var(--primary); color: #fff; box-shadow: 0 4px 14px 0 rgba(0,184,148,0.39); }
        .btn-primary:hover { background: var(--primary-hover); transform: translateY(-2px); }
        .mobile-menu-toggle { background: none; border: none; cursor: pointer; color: var(--text-main); display: flex; align-items: center; justify-content: center; padding: 8px; }
        .mobile-drawer-overlay { position: fixed; inset: 0; background: rgba(0,0,0,0.5); opacity: 0; visibility: hidden; transition: var(--transition); z-index: 998; backdrop-filter: blur(4px); }
        .mobile-drawer-overlay.active { opacity: 1; visibility: visible; }
        .mobile-drawer { position: fixed; top: 0; left: -300px; width: 280px; height: 100vh; background: var(--bg-white); z-index: 999; transition: var(--transition); box-shadow: var(--shadow-lg); display: flex; flex-direction: column; }
        .mobile-drawer.active { left: 0; }
        .drawer-header { padding: 20px; display: flex; justify-content: space-between; align-items: center; border-bottom: 1px solid var(--border-color); background: #f8fafc; }
        .drawer-close { background: none; border: none; cursor: pointer; color: var(--text-muted); padding: 4px; }
        .drawer-nav { padding: 20px 0; overflow-y: auto; flex: 1; }
        .drawer-nav a { display: block; padding: 16px 24px; font-size: 16px; font-weight: 500; color: var(--text-main); border-left: 4px solid transparent; }
        .drawer-nav a:hover { background: var(--primary-light); color: var(--primary); border-left-color: var(--primary); }

        
        .page-header { background: linear-gradient(to right, #1e293b, #334155); color: #fff; padding: 60px 0; text-align: center; }
        .page-header h1 { font-size: 32px; margin-bottom: 16px; }
        .breadcrumb { display: flex; justify-content: center; gap: 10px; font-size: 14px; color: #cbd5e1; }
        .breadcrumb a { color: var(--primary); }
        
        .list-layout { display: grid; grid-template-columns: 1fr; gap: 40px; padding: 60px 0; }
        @media (min-width: 992px) { .list-layout { grid-template-columns: 1fr 300px; } }
        
        .article-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 30px; }
        .article-card { background: var(--bg-white); border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-sm); border: 1px solid var(--border-color); display: flex; flex-direction: column; height: 100%; transition: var(--transition); }
        .article-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: var(--primary); }
        .article-img { width: 100%; height: 180px; object-fit: cover; }
        .article-content { padding: 20px; flex: 1; display: flex; flex-direction: column; }
        .article-title { font-size: 18px; font-weight: 600; color: var(--text-main); margin-bottom: 10px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
        .article-desc { font-size: 14px; color: var(--text-muted); margin-bottom: 16px; flex: 1; display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
        .article-meta { display: flex; justify-content: space-between; font-size: 12px; color: var(--text-muted); padding-top: 12px; border-top: 1px solid var(--border-color); }
        
        .sidebar { background: var(--bg-white); padding: 24px; border-radius: var(--radius-lg); border: 1px solid var(--border-color); height: fit-content; }
        .sidebar-title { font-size: 18px; color: var(--text-main); margin-bottom: 20px; padding-bottom: 10px; border-bottom: 2px solid var(--primary-light); }
        
        .pagination { display: flex; justify-content: center; gap: 8px; margin-top: 40px; }
        .pagination a, .pagination span { padding: 8px 16px; border-radius: var(--radius-md); background: var(--bg-white); border: 1px solid var(--border-color); color: var(--text-main); }
        .pagination a.current { background: var(--primary); color: #fff; border-color: var(--primary); }
        .pagination a:hover:not(.current) { border-color: var(--primary); color: var(--primary); }

        
        .site-footer { background: #1e293b; color: #94a3b8; padding: 80px 0 0 0; }
        .footer-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 40px; margin-bottom: 60px; }
        .footer-logo span { color: #fff; }
        .footer-desc { margin-top: 20px; font-size: 14px; line-height: 1.8; }
        .footer-links h3 { color: #fff; font-size: 18px; margin-bottom: 24px; font-weight: 600; }
        .footer-links ul li { margin-bottom: 12px; }
        .footer-links a:hover { color: var(--primary); padding-left: 5px; }
        .footer-bottom { border-top: 1px solid #334155; padding: 24px 0; text-align: center; font-size: 14px; }