:root{--primary:rgb(83,92,104);--primary-dark:#3e454f;--primary-light:rgba(83,92,104,0.1);--accent:#d29e5e;--text-main:#333;--text-muted:#666;--bg-body:#f8f9fa;--bg-white:#ffffff;--border:#eef0f2;--radius:8px;--shadow:0 4px 20px rgba(0,0,0,0.05);}
        *{margin:0;padding:0;box-sizing:border-box;}
        body{font-family:-apple-system,sans-serif;color:var(--text-main);background:var(--bg-body);line-height:1.8;}
        a{text-decoration:none;color:inherit;transition:all 0.3s;}
        img{max-width:100%;height:auto;display:block;}
        .container{max-width:1200px;margin:0 auto;padding:0 20px;}
        
        .site-header{background:var(--bg-white);box-shadow:var(--shadow);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;}
        .logo img{height:40px;}
        .logo span{font-size:22px;font-weight:800;color:var(--primary);}
        .desktop-nav{display:flex;gap:30px;}
        .menu-toggle{display:none;font-size:28px;background:none;border:none;color:var(--primary);}

        .drawer-overlay{position:fixed;inset:0;background:rgba(0,0,0,0.5);z-index:999;opacity:0;visibility:hidden;transition:all 0.3s;}
        .drawer{position:fixed;top:0;left:-300px;width:280px;height:100%;background:var(--bg-white);z-index:1000;transition:all 0.3s;}
        .drawer.active{left:0;}
        .drawer-overlay.active{opacity:1;visibility:visible;}
        .drawer-header{padding:20px;display:flex;justify-content:space-between;border-bottom:1px solid var(--border);}
        .drawer-nav{padding:20px;display:flex;flex-direction:column;gap:15px;}
        
        .article-layout { padding: 40px 0; display: flex; gap: 40px; }
        .article-main { flex: 1; min-width: 0; background: var(--bg-white); padding: 50px; border-radius: var(--radius); box-shadow: var(--shadow); }
        .sidebar { width: 320px; flex-shrink: 0; }
        @media (max-width: 992px) { .article-layout { flex-direction: column; } .sidebar { width: 100%; } .desktop-nav{display:none;} .menu-toggle{display:block;} }
        @media (max-width: 768px) { .article-main { padding: 25px; } }

        .breadcrumb { font-size: 14px; color: var(--text-muted); margin-bottom: 20px; }
        .breadcrumb a:hover { color: var(--primary); }
        .art-title { font-size: 32px; font-weight: 800; color: var(--primary-dark); margin-bottom: 20px; line-height: 1.4; }
        .art-meta { display: flex; flex-wrap: wrap; gap: 20px; font-size: 14px; color: #888; margin-bottom: 40px; padding-bottom: 20px; border-bottom: 1px solid var(--border); }
        .art-meta span { display: flex; align-items: center; gap: 5px; }
        
        .art-content { font-size: 17px; color: #444; line-height: 1.9; }
        .art-content p { margin-bottom: 20px; }
        .art-content h2, .art-content h3 { margin: 30px 0 15px; color: var(--primary-dark); }
        .art-content img { border-radius: var(--radius); margin: 20px 0; max-width: 100%; }
        
        .art-footer { margin-top: 50px; padding-top: 30px; border-top: 1px solid var(--border); display: flex; justify-content: space-between; align-items: center; }
        .art-tags { display: flex; gap: 10px; align-items: center; }
        .art-tags strong { color: var(--primary-dark); font-size: 14px; }
        .art-tags a { background: var(--primary-light); color: var(--primary); padding: 5px 12px; border-radius: 4px; font-size: 13px; }
        
        .art-nav { margin-top: 30px; display: flex; justify-content: space-between; gap: 20px; }
        .art-nav a { flex: 1; padding: 20px; background: var(--bg-body); border-radius: var(--radius); color: var(--primary-dark); font-weight: 600; display: block; border: 1px solid var(--border); }
        .art-nav a:hover { background: var(--primary); color: #fff; }
        .art-nav span { display: block; font-size: 13px; color: #888; font-weight: normal; margin-bottom: 5px; }
        .art-nav a:hover span { color: rgba(255,255,255,0.7); }

        .related-sec { margin-top: 60px; }
        .related-title { font-size: 24px; font-weight: 700; color: var(--primary-dark); margin-bottom: 30px; border-left: 4px solid var(--primary); padding-left: 15px; }
        .related-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 20px; }
        .r-card { background: var(--bg-body); border-radius: var(--radius); overflow: hidden; display: flex; flex-direction: column; }
        .r-card img { width: 100%; height: 160px; object-fit: cover; }
        .r-card-content { padding: 15px; }
        .r-card h4 { font-size: 16px; margin-bottom: 10px; color: var(--primary-dark); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }

        .widget { background: var(--bg-white); padding: 25px; border-radius: var(--radius); box-shadow: var(--shadow); margin-bottom: 30px; }
        .widget-title { font-size: 18px; font-weight: 700; color: var(--primary-dark); margin-bottom: 20px; padding-left: 12px; border-left: 4px solid var(--primary); }
        .widget ul { list-style: none; }
        .widget li { margin-bottom: 15px; padding-bottom: 15px; border-bottom: 1px dashed var(--border); }
        .widget li a { font-size: 15px; display: block; }
        .widget li a:hover { color: var(--primary); }

        .site-footer{background:var(--primary-dark);color:#fff;padding:60px 0 20px;}
        .footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;margin-bottom:40px;}
        .footer-brand .logo span{color:#fff;}
        .footer-col h4{font-size:18px;margin-bottom:20px;color:#fff;border-bottom:2px solid var(--accent);display:inline-block;}
        .footer-col ul{list-style:none;}
        .footer-col ul li{margin-bottom:10px;}
        .footer-col ul a{color:rgba(255,255,255,0.7);}
        .footer-bottom{text-align:center;padding-top:20px;border-top:1px solid rgba(255,255,255,0.1);font-size:14px;color:rgba(255,255,255,0.5);}
        @media (max-width: 768px) { .footer-grid{grid-template-columns:1fr;} }