:root{font-family:"Microsoft YaHei","PingFang SC",sans-serif;font-size:18px;line-height:1.65;color:#233646;background:#f3f6f8;--blue:#28618a;--muted:#607588;--border:#dce5ec}*{box-sizing:border-box}body{margin:0}button,input,textarea,select{font:inherit}button{cursor:pointer}button:disabled{cursor:wait;opacity:.6}input,textarea,select{width:100%;padding:12px 14px;border:1px solid #c6d3de;border-radius:9px;background:white;font-size:18px;color:#233646}input:focus,textarea:focus,select:focus{outline:3px solid #e0edf6;border-color:#6092b5}label{display:block;font-size:18px;font-weight:600;margin:20px 0 8px}textarea{min-height:160px;resize:vertical}h1{font-size:36px;line-height:1.35;margin:8px 0 12px}h2{font-size:23px;margin:0 0 16px}h3{font-size:21px}p{margin:0}a{color:inherit;text-decoration:none}.hidden{display:none!important}.muted,.hint,.notice{font-size:16px;color:var(--muted)}.hint{margin-top:7px}.notice{margin-top:22px}.eyebrow{font-size:16px;letter-spacing:2px;color:#607e96}.primary,.secondary,.danger{border-radius:9px;padding:12px 21px;font-size:18px;white-space:nowrap}.primary{background:var(--blue);border:1px solid var(--blue);color:white}.secondary{background:white;border:1px solid #c6d3de;color:#395d77}.danger{background:#b64040;border:1px solid #b64040;color:white}.wide{width:100%}.text-button{border:0;background:none;color:#37658a;padding:6px 9px;font-size:16px}.text-button:hover{background:#eaf1f6;border-radius:6px}.status{font-size:16px;color:#466781;margin-top:16px;min-height:24px;overflow-wrap:anywhere}.status.error{color:#b03737}.login-layout{max-width:1120px;min-height:100vh;margin:auto;padding:50px 40px;display:grid;grid-template-columns:1.2fr 1fr;gap:80px;align-items:center}.welcome h1{font-size:48px;margin:23px 0 24px;line-height:1.45}.welcome p{font-size:19px;line-height:1.85;color:#5a7489}.welcome-note{display:flex;align-items:center;gap:18px;font-size:16px;color:#7590a4;margin-top:60px}.line{width:50px;height:2px;background:#a6c0d2}.login-card{background:white;padding:38px;border-radius:20px;border:1px solid var(--border);box-shadow:0 16px 45px #213c5610}.login-card h2{font-size:29px;margin:12px 0}.login-card .primary{margin-top:28px}.header{display:flex;align-items:center;gap:36px;background:#fff;border-bottom:1px solid var(--border);padding:19px max(24px,calc((100% - 1300px)/2));min-height:88px}.brand{font-size:24px;font-weight:700;white-space:nowrap}.brand span{font-size:16px;color:var(--muted);font-weight:400;margin-left:13px}.header nav{display:flex;gap:6px}.nav-button{background:none;border:0;border-radius:8px;padding:9px 16px;font-size:18px;color:#63798a;white-space:nowrap}.nav-button.selected{background:#e7f0f6;color:var(--blue);font-weight:600}.profile{display:flex;gap:10px;align-items:center;margin-left:auto;font-size:16px;white-space:nowrap}.wrap{max-width:1300px;margin:auto;padding:34px 26px 60px}.page-heading{display:flex;justify-content:space-between;align-items:center;gap:24px;margin-bottom:28px}.badge{font-size:16px;background:#e2edf4;color:#426985;padding:9px 17px;border-radius:24px;white-space:nowrap}.query-grid{display:grid;grid-template-columns:390px minmax(0,1fr);gap:24px;align-items:start}.card{background:white;border:1px solid var(--border);border-radius:16px;padding:27px;box-shadow:0 5px 20px #193b5510}.query-form{position:sticky;top:20px}.query-form label:first-of-type{margin-top:0}.samples{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}.samples button{font-size:16px;background:#f2f6f9;border:1px solid #e2eaf0;color:#4c6c83;border-radius:7px;padding:6px 10px}.actions{display:flex;gap:10px;margin-top:22px}.actions .primary{flex:1}.result-heading{display:flex;justify-content:space-between;align-items:center}.result-heading h2{margin:0}.empty{text-align:center;padding:42px 6px 48px;color:var(--muted);font-size:18px}.empty-icon{display:grid;place-items:center;margin:auto;width:58px;height:58px;border-radius:17px;background:#eaf1f6;color:#7899b0;font-size:31px}.empty h3{margin:18px 0 10px;color:#42637d}.answer{white-space:pre-wrap;overflow-wrap:anywhere;font-size:18px}.asked-question{font-size:18px;color:#50748f;margin:24px 0 20px;padding-left:14px;border-left:3px solid #98b6cc;white-space:pre-wrap;overflow-wrap:anywhere}.sources{padding-top:20px;margin-top:25px;border-top:1px solid #e5ebf0}.sources h3{margin:0 0 14px}.source{margin-top:12px;border:1px solid #dbe5ed;border-radius:10px;overflow:hidden}.source summary{font-size:17px;padding:15px;background:#f7f9fb;cursor:pointer;overflow-wrap:anywhere}.source pre{font:inherit;font-size:17px;white-space:pre-wrap;overflow-wrap:anywhere;margin:0;padding:17px;max-height:480px;overflow:auto}.table-toolbar{display:flex;align-items:center;gap:18px;margin-bottom:18px}.table-toolbar input{max-width:380px}.table-toolbar button{margin-left:auto}.table-scroll{overflow:auto}table{border-collapse:collapse;width:100%;font-size:17px}th{text-align:left;background:#f1f5f8;color:#527088;font-size:16px;padding:14px 16px;white-space:nowrap}td{border-bottom:1px solid #e4ebf0;padding:18px 16px;vertical-align:middle}.account-name{font-size:18px;font-weight:600}.account-sub{font-size:16px;color:var(--muted)}.pill{font-size:16px;padding:4px 10px;border-radius:20px;background:#e9f3ed;color:#3e7958;white-space:nowrap}.pill.disabled{background:#f2eaea;color:#9a5656}.row-actions{display:flex;flex-wrap:wrap;gap:4px}.row-actions button{white-space:nowrap}dialog{width:min(550px,calc(100vw - 36px));max-height:90vh;overflow:auto;border:1px solid #d4e0e9;border-radius:18px;padding:28px;box-shadow:0 20px 80px #102e4130;color:#233646;font:inherit}dialog::backdrop{background:#18334660}.dialog-heading{display:flex;justify-content:space-between;align-items:center;gap:15px;margin-bottom:10px}.dialog-heading h2{margin:0}.field-pair{display:grid;grid-template-columns:1fr 1fr;gap:18px}.dialog-actions{display:flex;justify-content:flex-end;gap:12px;margin-top:24px}@media(max-width:1000px){.header{flex-wrap:wrap;gap:14px;padding:16px 22px}.profile{flex-wrap:wrap}.brand span{display:none}.query-grid{grid-template-columns:350px minmax(0,1fr)}}@media(max-width:800px){.login-layout{grid-template-columns:1fr;gap:30px;padding:36px 22px}.welcome h1{font-size:35px}.welcome-note{display:none}.login-card{padding:28px}.header{align-items:flex-start}.profile{margin-left:0;width:100%}.query-grid{grid-template-columns:1fr}.query-form{position:static}.wrap{padding:26px 18px}.page-heading{align-items:flex-start}.badge{display:none}h1{font-size:30px}.card{padding:22px}.table-toolbar{flex-wrap:wrap}.table-toolbar input{max-width:none}.row-actions{min-width:210px}}

#userName{max-width:100%;white-space:normal;overflow-wrap:anywhere}

.previous-turn{margin-top:18px;padding:14px 16px;border:1px solid #dce5ec;border-radius:10px;background:#f7f9fb}.previous-turn>summary{cursor:pointer;color:#50748f;font-size:16px;overflow-wrap:anywhere}.previous-turn>.answer{padding-top:14px}

/* Compact page chrome: preserve readable text sizes, reduce vertical padding. */
.header{min-height:64px;padding-top:8px;padding-bottom:8px;gap:24px}
.header .nav-button{padding-top:5px;padding-bottom:5px}
.wrap{padding-top:16px}
.page-heading{margin-bottom:16px;gap:18px}
.page-heading h1{margin-top:0;margin-bottom:4px}
@media(max-width:1000px){.header{gap:10px}}
@media(max-width:800px){.wrap{padding-top:16px}.header{padding-top:8px;padding-bottom:8px}}

/* Desktop density and persistent navigation. */
:root{line-height:1.55}
.header{position:sticky;top:0;z-index:30;box-shadow:0 2px 10px #193b5508}
.query-grid{grid-template-columns:350px minmax(0,1fr);gap:20px}
.card{padding:22px;border-radius:13px}
.query-form{position:sticky;top:80px;max-height:calc(100dvh - 96px);overflow:auto;scrollbar-width:thin;scrollbar-gutter:stable}
.query-form h2{margin-bottom:12px}
.query-form label{margin-top:14px;margin-bottom:6px}
.query-form textarea{min-height:128px}
.query-form input,.query-form textarea{padding:10px 12px}
.query-form .samples{margin-top:10px;gap:6px}
.query-form .samples button{padding:5px 8px}
.query-form .actions{gap:8px;margin-top:16px}
.query-form .primary,.query-form .secondary{padding:10px 15px}
.query-form .status{margin-top:10px}
.sources{margin-top:20px;padding-top:16px}
.source summary{padding:12px 14px}
.source pre{padding:14px;max-height:420px}
.asked-question{margin-top:18px;margin-bottom:16px}
@media(max-width:1000px){.query-grid{grid-template-columns:320px minmax(0,1fr)}}
@media(max-width:800px){.query-grid{grid-template-columns:1fr}.query-form{position:static;max-height:none;overflow:visible;scrollbar-gutter:auto}.card{padding:20px}.header{min-height:0}}