/* 文言：书案清简，各有其位。汉语：轻量三栏工作台，窄屏依次展示，源码保持可读。 */
:root{color-scheme:light;--bg:#f7f6f1;--paper:#fffefa;--ink:#28312c;--muted:#7d827b;--line:#e4e4db;--red:#a94332;--soft:#f0eee6;--green:#4c6a50;font-family:system-ui,-apple-system,"PingFang SC",sans-serif;font-size:14px}*{box-sizing:border-box}body{margin:0;color:var(--ink);background:var(--bg)}button,input,select,textarea{font:inherit;color:inherit}button{cursor:pointer;border:1px solid var(--line);background:var(--paper);border-radius:5px;padding:8px 13px}button:hover{border-color:#a6ab9c;background:var(--soft)}button:disabled{opacity:.45;cursor:not-allowed}.primary{background:var(--red);border-color:var(--red);color:white}.primary:hover{background:#913828;border-color:#913828}a{color:inherit;text-decoration:none}a:hover{color:var(--red)}[hidden]{display:none!important}header{height:68px;border-bottom:1px solid var(--line);display:flex;gap:15px;align-items:center;padding:0 26px;background:var(--paper)}.brand{font:700 29px "Songti SC",serif;letter-spacing:3px}.brand span{color:var(--red)}.divider{width:1px;height:23px;background:var(--line);margin:0 3px}.tag{font-size:10px;letter-spacing:1px;padding:4px 7px;background:var(--soft);color:var(--muted);border-radius:3px}.spacer{flex:1}.quiet{border:0;background:transparent;font-size:12px}#连接状态{font-size:11px;color:var(--muted)}#通知{padding:12px 28px;background:#fff0df;color:#824530;border-bottom:1px solid #ead4b6;white-space:pre-wrap}#登录区{display:flex;min-height:calc(100vh - 115px);align-items:center;justify-content:center;gap:12vw;padding:65px 7vw}.welcome h1{font:500 clamp(38px,5vw,66px)/1.35 "Songti SC",STSong,serif;letter-spacing:2px;margin:25px 0}.welcome em{font-style:normal;color:var(--red)}.welcome>p{line-height:2;color:var(--muted)}.eyebrow{font-size:10px;letter-spacing:2px;color:var(--muted);margin:0 0 6px}.principles{display:flex;gap:18px;margin-top:35px;color:var(--green);font-size:12px}.login{width:345px;padding:30px;border:1px solid var(--line);background:var(--paper);box-shadow:9px 9px 0 #eeeee5}h2{font:500 24px "Songti SC",serif;margin:0 0 18px}.login>p,.subtle{color:var(--muted);font-size:12px;line-height:1.8}label{display:block;font-size:12px;margin:20px 0 12px}input,select,textarea{display:block;width:100%;border:1px solid var(--line);border-radius:4px;background:var(--paper);padding:12px;margin-top:8px;outline:none}input:focus,textarea:focus,select:focus{border-color:var(--green);box-shadow:0 0 0 2px #4c6a5010}.login>.primary{width:100%;margin-top:10px}#工作区{display:flex;min-height:calc(100vh - 107px)}.projects{width:190px;flex-shrink:0;border-right:1px solid var(--line);padding:20px 12px;display:flex;flex-direction:column}.section-label{font-size:10px;font-weight:600;letter-spacing:1px;color:var(--muted);display:flex;align-items:center;gap:8px;padding:8px 10px}.section-label button{font-size:12px;padding:2px 7px;margin-left:auto}.projects button.project{display:block;border:0;text-align:left;width:100%;margin:6px 0;padding:11px 12px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;background:transparent}.projects button.project.active{background:#e9ece3;color:var(--green)}.sidebar-bottom{margin-top:auto;padding:25px 9px 8px;font-size:10px;overflow-wrap:anywhere}.sidebar-bottom small{display:block;color:var(--muted);margin-top:8px}.empty{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:50px}.empty h1{font:32px "Songti SC",serif}.empty p{color:var(--muted);margin:0 0 25px}.seal{font:50px "Songti SC",serif;color:var(--red);border:1px solid #ceb5a3;padding:12px 18px}.project-header{height:90px;display:flex;align-items:center;gap:20px;padding:20px 28px;border-bottom:1px solid var(--line)}.project-header h2{margin:0;font-size:25px}.save{font-size:11px;color:var(--green)}#项目区{flex:1;min-width:0}.workspace-grid{display:grid;grid-template-columns:170px minmax(250px,1fr) minmax(270px,340px);height:calc(100vh - 197px);min-height:480px}.files{border-right:1px solid var(--line);overflow:auto;padding:12px 5px}.files button{display:block;width:100%;border:0;background:transparent;font-size:11px;text-align:left;padding:9px 10px;overflow-wrap:anywhere}.files button.active{background:var(--soft);color:var(--red)}.history-label{margin-top:24px;border-top:1px solid var(--line);padding-top:20px}.files button.history{color:var(--muted);font-size:10px}.reader{min-width:0;display:flex;flex-direction:column;background:var(--paper)}.tabs{display:flex;align-items:center;gap:8px;min-height:47px;border-bottom:1px solid var(--line);padding:0 13px}.tabs button{border:0;border-radius:0;background:transparent;font-size:11px;padding:14px 5px}.tabs button.active{border-bottom:2px solid var(--red)}#文件路径{font-size:10px;color:var(--muted);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.readonly{font-size:9px;color:var(--muted);border:1px solid var(--line);padding:2px 4px;white-space:nowrap}pre{margin:0;white-space:pre-wrap;overflow-wrap:anywhere;font:12px/1.95 ui-monospace,"SFMono-Regular","PingFang SC",monospace}#源码,#差异{flex:1;min-height:160px;overflow:auto;padding:24px}.diff-file{margin-bottom:20px}.diff-file h3{font-size:11px}.diff-added{background:#edf4e8;color:#38533e;padding:8px}.diff-removed{background:#f9eeeb;color:#a2473a;padding:8px}.build{border-top:1px solid var(--line);max-height:210px;overflow:auto;background:#f8f8f3}.build pre{padding:10px 20px;font-size:10px;color:var(--muted)}#构建状态{margin-left:auto;letter-spacing:0}.conversation{border-left:1px solid var(--line);display:flex;flex-direction:column;min-height:0;padding:10px 12px}.conversation>.section-label{min-height:35px}#任务状态{font-size:10px;letter-spacing:0;color:var(--green)}#消息列表{flex:1;overflow:auto;padding:14px 6px}.message{margin:0 0 22px}.message .role{font-size:10px;color:var(--muted);margin-bottom:6px}.message p{margin:0;white-space:pre-wrap;line-height:1.8;font-size:12px}.message.user{padding:14px;background:var(--soft);border-radius:5px}.conversation form{border-top:1px solid var(--line);padding:5px}.conversation textarea{resize:vertical;min-height:90px;font-size:12px}.composer-footer{display:flex;align-items:center;justify-content:space-between;gap:10px;margin:12px 0 4px}.composer-footer small{font-size:9px;color:var(--muted)}dialog{border:1px solid var(--line);background:var(--paper);padding:30px;width:min(450px,90vw);border-radius:5px}dialog::backdrop{background:#28312c55}.dialog-actions{display:flex;justify-content:flex-end;gap:10px;margin-top:24px}footer{height:39px;border-top:1px solid var(--line);display:flex;align-items:center;gap:20px;padding:0 24px;font-size:9px;color:var(--muted)}footer span{flex:1}@media(min-width:1600px){.workspace-grid{grid-template-columns:200px minmax(450px,1fr) 400px}}@media(max-width:1050px){.projects{width:150px}.workspace-grid{grid-template-columns:125px minmax(200px,1fr)}.conversation{grid-column:1/-1;min-height:400px;border-top:1px solid var(--line);border-left:0}.workspace-grid{height:auto}.reader{min-height:500px}.project-header{padding:15px;gap:10px}}@media(max-width:650px){header{padding:0 14px;gap:8px}.tag{display:none}#登录区{flex-direction:column;gap:40px;padding:45px 22px}.welcome{width:100%}.welcome h1{font-size:42px}.login{width:100%}.projects{width:105px;padding:10px 4px}.workspace-grid{display:flex;flex-direction:column}.files{max-height:170px;border-bottom:1px solid var(--line)}.files .history-label,#历史列表{display:none}.project-header{flex-wrap:wrap;height:auto}.project-header h2{font-size:20px}.reader{min-height:440px}.conversation{min-height:400px}.save{font-size:9px}footer span{display:none}.tabs{gap:4px}footer{gap:12px}}