*{box-sizing:border-box}body{margin:0;font:15px/1.45 system-ui,"Segoe UI",sans-serif;color:#0f172a;background:#f8fafc}
header,footer,main{max-width:1100px;margin:auto;padding:12px 16px}header{display:flex;gap:12px;align-items:center;flex-wrap:wrap}
header h1{font-size:20px;margin:0;flex:1}nav a{margin-left:12px;color:#334155}a{color:#1d4ed8}
.search{display:flex;gap:6px;flex-wrap:wrap;margin:8px 0}.search input,.search select,.search button{font:inherit;padding:8px 10px;border:1px solid #cbd5e1;border-radius:8px}.search input{flex:1;min-width:160px}.search button{background:#1d4ed8;color:#fff;border:0;cursor:pointer}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:12px}
.card{display:block;background:#fff;border:1px solid #e2e8f0;border-radius:12px;padding:12px;text-decoration:none;color:inherit}.card:hover{border-color:#1d4ed8}
.card b{font-size:16px}.card .t{color:#64748b;font-size:12px}.card p{font-size:13px;margin:6px 0 0;color:#334155}
.ad-slot{margin:14px 0;min-height:90px;border:1px dashed #94a3b8;border-radius:10px;display:flex;align-items:center;justify-content:center;color:#94a3b8;font-size:12px;background:#f1f5f9}
.note{font-size:13px;color:#475569}footer{font-size:13px;color:#64748b;border-top:1px solid #e2e8f0;margin-top:20px}