*{box-sizing:border-box;margin:0;padding:0;font-family:system-ui,-apple-system}
.container{max-width:1200px;margin:0 auto;padding:0 15px}
.site-header{background:#fff;border-bottom:1px solid #eee;padding:16px 0;margin-bottom:24px}
.site-header .container{display:flex;align-items:center;gap:16px;flex-wrap:wrap}
.logo a{font-size:22px;font-weight:bold;color:#222;text-decoration:none}
.nav a{margin:0 8px;color:#444;text-decoration:none}
.search-form{display:flex;gap:6px;margin-left:auto}
.search-form input{border:1px solid #ddd;padding:7px 10px;border-radius:4px;outline:none}
.search-form button{border:none;background:#2563eb;color:#fff;padding:7px 12px;border-radius:4px;cursor:pointer}

.resource-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(270px,1fr));gap:20px;margin-bottom:30px}
.card{border:1px solid #eee;border-radius:10px;padding:16px;background:#fff}
.card-cate{display:inline-block;background:#2563eb;color:#fff;font-size:12px;padding:2px 8px;border-radius:99px;margin-bottom:8px}
.card-title{font-size:17px;margin-bottom:8px}
.card-title a{color:#222;text-decoration:none}
.card-meta{font-size:12px;color:#777;display:flex;gap:10px;margin-bottom:8px;flex-wrap:wrap}
.card-excerpt{color:#666;font-size:14px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:12px;line-height:1.6}
.card-btn{display:block;text-align:center;background:#2563eb;color:#fff;padding:8px;border-radius:6px;text-decoration:none;font-size:14px}

.detail-box{background:#fff;padding:24px;border-radius:10px;border:1px solid #eee;margin-bottom:30px}
.detail-title{font-size:24px;margin-bottom:12px}
.detail-meta{font-size:14px;color:#777;display:flex;gap:16px;flex-wrap:wrap;margin-bottom:20px}
.detail-content{line-height:1.8;font-size:16px;margin-bottom:24px}
.download-block{background:#f5f7fa;border:1px dashed #c9d3e0;padding:18px;border-radius:8px}
.down-item{margin:12px 0;display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.pwd-text{background:#fff;padding:4px 8px;border-radius:4px;font-family:Consolas}
.copy-pwd{border:none;background:#2563eb;color:#fff;padding:4px 10px;border-radius:4px;cursor:pointer}
.page-pagination{text-align:center;margin:30px 0}
.empty-tip,.err404{text-align:center;padding:50px;color:#777;font-size:16px}
.site-footer{margin-top:40px;padding:20px 0;border-top:1px solid #eee;color:#777;text-align:center;font-size:14px}