:root{font-family:Inter,"Segoe UI","PingFang SC","Microsoft YaHei",system-ui,sans-serif;color:#172033;background:#f7f8fb;--line:#e4e8f0;--muted:#6c768a;--blue:#2563eb;--card:#fff}*{box-sizing:border-box}body{margin:0}.shell{min-height:100vh}.topbar{height:72px;border-bottom:1px solid var(--line);background:#ffffffdd;backdrop-filter:blur(12px);display:flex;align-items:center;justify-content:space-between;padding:0 max(24px,calc((100vw - 1100px)/2))}.brand{display:flex;align-items:center;gap:11px}.mark{width:38px;height:38px;border-radius:11px;background:linear-gradient(135deg,#2563eb,#7c3aed);display:grid;place-items:center;color:white;font-weight:800;box-shadow:0 6px 20px #2563eb25}.brand>div:last-child{display:flex;flex-direction:column}.brand strong{font-size:14px}.brand span{font-size:11px;color:var(--muted);margin-top:3px}.badge{font-size:11px;color:#3f4c63;border:1px solid var(--line);background:white;padding:7px 10px;border-radius:999px}main{max-width:1100px;margin:0 auto;padding:64px 24px 80px}.hero{text-align:center;max-width:800px;margin:0 auto 42px}.eyebrow{font-size:11px;letter-spacing:.16em;color:#6b7aa0;font-weight:800}.hero h1{font-size:40px;letter-spacing:-.035em;margin:12px 0 12px}.lead{font-size:14px;color:var(--muted);line-height:1.8;margin:0 auto 24px;max-width:660px}.searchbox{height:58px;display:flex;border:1px solid #d7dce6;background:white;border-radius:16px;padding:6px;box-shadow:0 14px 40px #1d2a4410}.searchbox input{flex:1;border:0;outline:0;font-size:15px;padding:0 15px;background:transparent}.searchbox button{border:0;border-radius:11px;background:#172033;color:#fff;font-weight:700;padding:0 24px;cursor:pointer}.searchbox button:disabled{opacity:.5}.tips{margin-top:12px;font-size:10.5px;color:#8a93a5;display:flex;gap:7px;justify-content:center;flex-wrap:wrap}.state{border:1px solid var(--line);background:#fff;border-radius:14px;padding:18px 20px;margin-bottom:16px;font-size:13px;color:#5d687b}.state.error{border-color:#f4c5c3;background:#fff7f6;color:#9b2c28}.hidden{display:none!important}.results{display:flex;flex-direction:column;gap:12px}.result{background:var(--card);border:1px solid var(--line);border-radius:15px;padding:20px 22px;box-shadow:0 5px 18px #23304a08}.result h2{font-size:17px;line-height:1.5;margin:0 0 7px}.result h2 a{color:#1d4ed8;text-decoration:none}.result h2 a:hover{text-decoration:underline}.meta{font-size:11.5px;color:#58705b;margin-bottom:10px}.snippet{font-size:13px;line-height:1.75;color:#505b6f;margin:0}.actions{display:flex;gap:12px;align-items:center;margin-top:13px;font-size:11px}.actions a{color:#51617c;text-decoration:none}.actions a:hover{color:#1d4ed8}.cite{padding:4px 8px;border-radius:999px;background:#eff6ff;color:#1d4ed8}.pager{display:flex;justify-content:center;align-items:center;gap:14px;margin-top:24px}.pager button{height:36px;border:1px solid var(--line);background:#fff;border-radius:9px;padding:0 14px;cursor:pointer}.pager button:disabled{opacity:.4;cursor:not-allowed}.pager span{font-size:11px;color:var(--muted)}footer{max-width:1100px;margin:0 auto;padding:0 24px 36px;color:#9299a7;font-size:10.5px;text-align:center}@media(max-width:700px){main{padding-top:38px}.hero h1{font-size:30px}.searchbox{height:auto;padding:5px}.searchbox button{padding:0 16px}.topbar{padding:0 16px}.badge{display:none}.result{padding:17px}}