.sub-nav{background:#fff;border:1px solid #d9e5f5;padding:6px 20px;margin-bottom:25px;display:flex;flex-wrap:wrap;align-items:center;gap:8px 20px;}.sub-nav-item{display:inline-block;padding:8px 4px;font-size:15px;font-weight:500;color:#4b556b;text-decoration:none;border-bottom:2px solid transparent;transition:all .2s;}.sub-nav-item:hover{color:#f97316;border-bottom-color:#f97316;}.sub-nav-item.active{color:#f97316;border-bottom-color:#f97316;}.category-layout{display:flex;gap:30px;margin:10px 0 40px;align-items:flex-start;}.category-main{flex:7.5;min-width:0;}.category-sidebar{flex:2.5;min-width:0;}.category-info{background:#fff;border:1px solid #d9e5f5;padding:28px 30px;margin-bottom:30px;display:flex;align-items:center;gap:24px;flex-wrap:wrap;}.category-icon{width:80px;height:80px;background:#fff2e5;display:flex;align-items:center;justify-content:center;font-size:42px;color:#f97316;}.category-desc{flex:1;}.category-desc h1{font-size:26px;font-weight:700;margin-bottom:8px;}.category-desc p{color:#566f8f;font-size:15px;}.category-count{background:#eef3ff;padding:6px 18px;font-size:14px;font-weight:500;}.software-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:20px;margin-bottom:30px;}.software-card{background:#fff;border:1px solid #dbe6f2;padding:18px 12px 14px;transition:border-color .2s;text-align:center;}.software-card:hover{border-color:#f97316;}.software-card-icon{width:64px;height:64px;background:#f0f6ff;display:flex;align-items:center;justify-content:center;margin:0 auto 12px;font-size:32px;color:#f97316;}.software-card-name{font-weight:700;font-size:16px;margin-bottom:6px;}.software-card-meta{font-size:12px;color:#74869c;margin-bottom:10px;}.software-card-stars{color:#fbbf24;font-size:12px;margin-bottom:10px;}.download-link{background:#f97316;color:#fff;border:0;padding:6px 16px;font-size:13px;font-weight:500;cursor:pointer;text-decoration:none;display:inline-block;}.download-link:hover{background:#e05f00;}.pagination{display:flex;justify-content:center;gap:12px;margin-top:20px;}.pagination a{display:inline-block;padding:8px 16px;background:#fff;border:1px solid #d9e5f5;color:#2c3e50;text-decoration:none;font-size:14px;}.pagination a.active{background:#f97316;color:#fff;border-color:#f97316;}.pagination a:hover:not(.active){background:#eef2ff;}.tag-card{background:#fff;border:1px solid #d9e5f5;padding:22px 20px;margin:20px 0 25px;}.tag-title{font-size:18px;font-weight:700;margin-bottom:18px;display:flex;align-items:center;gap:8px;border-left:3px solid #f97316;padding-left:12px;}.tag-info{display:flex;flex-wrap:wrap;gap:8px;}.tag-info a{background:#f6f6f6;padding:8px 16px;font-size:12px;color:#444;}.tag-info a:hover{background:#42bef2;color:#fff;}.rank-list{list-style:none;}.rank-item{display:flex;align-items:center;gap:12px;padding:12px 0;border-bottom:1px dashed #e2edff;}.rank-item:last-child{border-bottom:0;}.rank-hot{font-size:12px;color:#f97316;font-weight:600;}.footer-warning{background:#102a4e;color:#eaf0ff;padding:22px 30px;margin:30px 0 30px;text-align:center;font-size:15px;border:1px solid #31507c;}.footer-warning strong{background:#f97316;padding:5px 22px;margin-left:15px;font-weight:600;}hr{border:1px solid #d0e2ff;margin:20px 0;}@media(max-width:900px){.category-layout{flex-direction:column;}.software-grid{grid-template-columns:repeat(auto-fill,minmax(160px,1fr));}}