:root{--bg:#f5f7fb;--card:#ffffff;--text:#1e2430;--muted:#6e7787;--brand:#1565c0;--border:#dde3ee}*{box-sizing:border-box}body{margin:0;font-family:Segoe UI,PingFang SC,Microsoft YaHei,sans-serif;background:linear-gradient(160deg,#f7f9fd,#edf3fb);color:var(--text)}a{color:inherit;text-decoration:none}.container{max-width:1120px;margin:0 auto;padding:24px}.card{background:var(--card);border:1px solid var(--border);border-radius:14px;padding:18px;box-shadow:0 6px 18px rgba(18,43,82,.06)}button{border:none;border-radius:10px;padding:10px 14px;background:var(--brand);color:#fff;cursor:pointer}input,select{width:100%;border:1px solid var(--border);border-radius:10px;padding:10px 12px;background:#fff}.grid{display:grid;grid-gap:12px;gap:12px}.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}@media (max-width:768px){.grid-2{grid-template-columns:1fr}}