:root{color-scheme:light;--ink:#25322f;--muted:#66716c;--line:#d7dfdb;--accent:#28634f}
*{box-sizing:border-box;letter-spacing:0}
body{margin:0;background:#f7f9f8;color:var(--ink);font:15px/1.65 system-ui,"Microsoft YaHei",sans-serif}
[hidden]{display:none!important}
.ai-page i{display:none}
#gelvNav .burger::after{content:'☰'}
#gelvNav .user-lk>i::after{content:'⌄';font-style:normal}
a{color:var(--accent);text-underline-offset:3px}
.ai-page{max-width:960px;margin:0 auto;padding:40px 28px 40px}
.ai-heading{display:flex;justify-content:space-between;align-items:center;gap:16px}
h1{font-size:26px;font-weight:650;margin:5px 0 24px}
#message{min-height:48px;padding:10px 0;color:var(--muted);overflow-wrap:anywhere}
#message.error{color:#a33239}
#usage,small{color:var(--muted);font-size:13px}#usage{margin:0 0 8px}
.ai-tabs{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));border-bottom:1px solid var(--line);gap:4px}
button,input,select{font:inherit;max-width:100%}
button{border:1px solid transparent;border-radius:4px;cursor:pointer;padding:10px 16px;background:var(--accent);color:white;min-height:44px}
button:disabled{opacity:.55;cursor:wait}
button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible{outline:2px solid #b86b27;outline-offset:3px}
.ai-tabs button{background:transparent;color:var(--muted);border-radius:0;border-bottom:3px solid transparent;padding:12px 6px}
.ai-tabs button[aria-pressed="true"]{border-bottom-color:var(--accent);color:var(--accent);font-weight:600}
.ai-summary{display:flex;flex-wrap:wrap;gap:8px 20px;padding:22px 0;border-bottom:1px solid var(--line);overflow-wrap:anywhere}
.ai-summary strong{flex:1;min-width:160px;font-size:15px}
#source,#availability{font-size:13px;color:var(--muted)}
form{padding:24px 0}
.field{min-width:0;display:flex;flex-direction:column;gap:7px;margin:0 0 18px}
.field>label{font-weight:550;font-size:14px}
input:not([type=checkbox]),select{width:100%;min-height:44px;border:1px solid #bfcac4;background:white;border-radius:4px;padding:9px 12px;color:var(--ink)}
input:read-only{background:#eef2ef;color:var(--muted)}
#mode{max-width:420px}
fieldset{padding:0;margin:20px 0 0;border:0;display:grid;grid-template-columns:1fr 1fr;gap:0 24px}
.wide{grid-column:1/-1}
.check-row{display:flex;align-items:center;gap:9px;font-size:14px;color:var(--muted);margin:7px 0}
input[type=checkbox]{width:17px;height:17px;accent-color:var(--accent);flex:none}
.actions{display:flex;flex-wrap:wrap;align-items:center;gap:12px;padding-top:8px}
.secondary{background:white;color:var(--ink);border-color:var(--line)}
footer{display:flex;flex-wrap:wrap;gap:24px;border-top:1px solid var(--line);padding-top:20px;font-size:14px}
@media(max-width:600px){.ai-page{padding:26px 16px 30px}.ai-heading{align-items:flex-start;flex-direction:column;gap:0}h1{font-size:24px;margin-bottom:12px}.ai-tabs button{font-size:13px}.ai-tabs i{display:none}fieldset{grid-template-columns:minmax(0,1fr)}.wide{grid-column:auto}.ai-summary{flex-direction:column;gap:5px}.actions button{flex:1;padding:10px 8px}}
@media(max-width:400px){#gelvNav .right .admin-badge{display:none}#gelvNav .right .user-lk{max-width:112px;overflow:hidden;text-overflow:ellipsis}#gelvNav .right .user-lk:focus-within{overflow:visible}.actions{flex-direction:column;align-items:stretch}.actions button{width:100%}}