:root{--bg:#faf9f7;--paper:#fff;--sand:#f5f0eb;--ink:#242320;--muted:#77716a;--line:#e8e4df;--accent:#c96442;--sage:#56704d;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--bg);font-size:16px}*{box-sizing:border-box}body{margin:0}button,input,select,textarea{font:inherit}button,select{cursor:pointer}button{border:1px solid var(--line);background:var(--paper);border-radius:8px;padding:10px 16px;color:var(--ink);transition:background .18s,border-color .18s}button:hover:not(:disabled){border-color:var(--accent);background:var(--sand)}button:disabled{opacity:.45;cursor:not-allowed}button.primary{background:var(--accent);border-color:var(--accent);color:#fff}button.primary:hover:not(:disabled){background:#ad5437}button.quiet{background:transparent;border-color:transparent;padding:8px 12px}button:focus-visible,a:focus-visible,select:focus-visible,textarea:focus-visible,input:focus-visible{outline:2px solid var(--accent);outline-offset:3px}a{color:var(--accent);text-decoration:none}h1,h2,h3,.brand{font-family:Georgia,"Noto Serif SC","Songti SC",serif}h1{font-size:36px;letter-spacing:-.02em;line-height:1.3;margin:8px 0 12px}h2{font-size:22px;line-height:1.4;margin:0}p{line-height:1.7}small,.hint{font-size:13px;line-height:1.65;color:var(--muted)}.topbar{max-width:1360px;margin:auto;padding:28px 40px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line)}.brand{font-size:28px;font-weight:700;color:var(--ink);letter-spacing:-.04em;display:flex;gap:24px;align-items:center}.brand span{font-family:system-ui,sans-serif;font-weight:400;font-size:13px;letter-spacing:.06em;color:var(--muted)}.top-actions{display:flex;gap:16px;align-items:center}.badge{display:inline-block;font-size:12px;line-height:1.5;border:1px solid var(--line);border-radius:6px;padding:5px 8px;color:var(--muted);background:var(--bg)}.badge.good{color:var(--sage);background:#f0f3ed;border-color:#e0e7db}.badge.accent{color:#a64d30;background:#fbf0e9;border-color:#f1dbcf}main{max-width:1360px;margin:0 auto;padding:40px}.intro{display:flex;align-items:center;justify-content:space-between;gap:24px;margin-bottom:32px}.eyebrow{font-size:12px;color:var(--muted);letter-spacing:.07em;margin:0}.subtitle{font-size:17px;color:var(--muted);margin:0}.sync{text-align:right;display:grid;justify-items:end;gap:10px}.sync button{display:flex;gap:24px;align-items:center}.workspace{display:grid;grid-template-columns:340px minmax(0,1fr);gap:28px;align-items:start}.inbox,.detail{background:var(--paper);border:1px solid var(--line);border-radius:14px;overflow:hidden;min-width:0}.inbox-head{display:flex;justify-content:space-between;align-items:center;padding:22px 20px;border-bottom:1px solid var(--line);gap:8px}.inbox h2{font-family:inherit;font-size:15px;font-weight:600}.inbox h2 span{font-size:12px;color:var(--muted);margin-left:6px}.inbox select{max-width:112px;font-size:12px;border:0;background:transparent;color:var(--muted)}.items{max-height:760px;overflow:auto;padding:8px}.reply-card{border:1px solid transparent;border-radius:9px;padding:18px 14px;text-align:left;background:transparent;width:100%;display:block;margin:2px 0}.reply-card:hover:not(:disabled){border-color:var(--line)}.reply-card.selected{border-color:#eed8ca;background:#faf3ec}.reply-meta{display:flex;justify-content:space-between;align-items:center;font-size:12px;color:var(--muted);gap:12px;margin-bottom:10px}.author{color:var(--ink);font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:180px}.reply-snippet{font-size:15px;line-height:1.7;margin:0 0 12px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;overflow-wrap:anywhere}.reply-bottom{display:flex;justify-content:space-between;align-items:center;gap:8px;font-size:11px;color:var(--muted)}.reply-bottom .badge{font-size:11px;padding:2px 5px}.detail{min-height:540px}.detail-head{padding:28px 30px 24px;border-bottom:1px solid var(--line)}.detail-head h2{font-size:23px;margin:10px 0 12px;overflow-wrap:anywhere}.detail-head .metadata{display:flex;align-items:center;gap:12px;flex-wrap:wrap;font-size:12px;color:var(--muted)}.section{padding:26px 30px}.section+.section{border-top:1px solid var(--line)}.section-head{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:18px}.section-head h3{font-size:18px;margin:0}.context-description{font-size:13px;color:var(--muted);margin:-4px 0 20px}.thread{max-height:480px;overflow:auto;scrollbar-gutter:stable;padding-right:10px}.comment{position:relative;border-left:2px solid var(--line);padding:4px 0 16px 18px;margin-left:5px}.comment.mine{border-left-color:#c9d5c0}.comment.target{border-left-color:var(--accent);background:#fdf7f1;border-radius:0 8px 8px 0;padding:12px 12px 14px 18px;margin-bottom:12px}.comment-meta{display:flex;gap:8px;align-items:center;color:var(--muted);font-size:12px;flex-wrap:wrap}.comment-meta strong{color:var(--ink);font-weight:600}.comment-label{font-size:10px;padding:2px 5px;background:var(--sand);border-radius:4px}.comment p{font-size:16px;line-height:1.8;white-space:pre-wrap;overflow-wrap:anywhere;margin:8px 0 0}.replying-to{font-size:11px;color:var(--muted);margin-top:6px}.analysis-reason{font-size:16px;line-height:1.8;margin:0 0 18px}.draft-label{display:flex;justify-content:space-between;font-size:12px;color:var(--muted);margin-bottom:10px}.draft{width:100%;resize:vertical;min-height:120px;border:1px solid var(--line);background:var(--bg);border-radius:10px;padding:16px;font-size:18px;line-height:1.7;color:var(--ink)}.actions{display:flex;gap:10px;align-items:center;flex-wrap:wrap;margin-top:18px}.actions .spacer{flex:1}.welcome{min-height:540px;display:flex;align-items:center;justify-content:center;flex-direction:column;text-align:center;padding:40px}.welcome .mark{font-family:Georgia,serif;font-size:88px;color:#d9c7b8;line-height:1}.welcome h2{font-size:26px}.welcome p{font-size:16px;color:var(--muted)}.empty{padding:24px 18px;font-size:15px;color:var(--muted)}.alert{border:1px solid #e8d5bd;background:#faf1e5;color:#80552e;padding:14px 18px;border-radius:10px;margin-bottom:20px;font-size:14px;line-height:1.6}.inline-alert{font-size:13px;line-height:1.6;background:var(--sand);padding:12px 16px;border-radius:8px;margin:12px 0;color:#80552e}.muted{color:var(--muted);font-size:14px}footer{display:flex;flex-wrap:wrap;gap:12px;font-size:12px;color:var(--muted);padding-top:28px}dialog{width:min(480px,calc(100% - 32px));border:1px solid var(--line);border-radius:14px;background:var(--bg);padding:28px;color:var(--ink)}dialog::backdrop{background:rgba(36,35,32,.3);backdrop-filter:blur(3px)}.dialog-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}.dialog-head button{font-size:24px}label{display:grid;gap:10px;margin:20px 0;font-size:14px}label input,label select{width:100%;padding:12px;border:1px solid var(--line);border-radius:8px;background:var(--paper);color:var(--ink)}form>.primary{width:100%;margin-top:12px}@media(min-width:1300px){.workspace{grid-template-columns:365px minmax(0,1fr)}}@media(max-width:850px){.topbar{padding:20px 24px}.brand span{display:none}main{padding:28px 24px}.workspace{grid-template-columns:285px minmax(0,1fr);gap:18px}.section,.detail-head{padding:22px}.comment p{font-size:16px}}@media(max-width:650px){.topbar{padding:18px 20px}.brand{font-size:25px}.top-actions{gap:4px}.badge{font-size:11px}.topbar .quiet{font-size:13px}main{padding:28px 16px}.intro{align-items:flex-start;gap:16px;margin-bottom:24px}h1{font-size:30px}.subtitle{font-size:14px}.sync button{font-size:13px;padding:10px;gap:8px}.sync small{font-size:11px;max-width:120px}.workspace{display:flex;flex-direction:column;gap:20px}.inbox,.detail{width:100%}.items{max-height:285px}.reply-card{padding:13px 12px}.reply-snippet{-webkit-line-clamp:2;font-size:14px;margin-bottom:8px}.reply-meta{margin-bottom:6px}.inbox-head{padding:16px}.section,.detail-head{padding:22px 20px}.detail-head h2{font-size:21px}.thread{max-height:420px}.draft{font-size:16px}.detail{min-height:360px}.welcome{min-height:360px;padding:28px}.welcome h2{font-size:23px}.welcome p{font-size:15px}.actions button{padding:10px 12px;font-size:14px}.actions .spacer{display:none}footer{font-size:11px;gap:8px}.comment{padding-left:12px}.comment.target{padding-left:12px}.comment p{font-size:16px}}

[hidden]{display:none!important}.login{display:none}.locked .topbar,.locked main,.locked dialog{display:none}.locked .login{display:flex;min-height:100vh;align-items:center;justify-content:center;padding:24px}.login-card{width:480px;max-width:100%;padding:40px;border:1px solid var(--line);border-radius:16px;background:var(--paper)}.login-card .brand{margin-bottom:40px}.login-card h1{font-size:30px}.login-card>p{color:var(--muted);font-size:16px}.login-card>button{width:100%;margin:12px 0}.login-card .hint{font-size:13px}.feedback{min-height:110px;font-size:16px}.previous-feedback{font-size:14px;line-height:1.7;border-left:2px solid var(--line);padding-left:14px;color:var(--muted)}

#devicesDialog{width:min(720px,94vw)}.device-row{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:16px 0;border-bottom:1px solid var(--line)}.device-row .hint{margin:6px 0 0}.device-row button{flex-shrink:0}#devicesDialog h3{margin-top:26px}

/* Discussion groups, folded reply tree, independent reply drafts. */
main,.topbar{max-width:1780px}.workspace{grid-template-columns:280px minmax(0,1fr);gap:22px}.inbox{position:sticky;top:20px}.inbox-head{padding:20px 16px}.items{max-height:calc(100vh - 330px)}.thread-authors{font-size:12px;color:var(--muted);margin:0 0 12px;line-height:1.6}.detail-head{padding:24px}.detail-head h2{font-size:21px}.discussion-controls{display:flex;align-items:center;flex-wrap:wrap;gap:8px;padding:16px 24px;border-bottom:1px solid var(--line)}.discussion-controls>span{flex:1;min-width:200px}.discussion-controls button{font-size:12px;padding:8px 10px}.conversation-layout{display:grid;grid-template-columns:minmax(290px,1fr) minmax(340px,420px);align-items:start}.discussion-tree{padding:20px;max-height:calc(100vh - 160px);overflow:auto;scrollbar-gutter:stable}.tree-comment{border:1px solid var(--line);border-radius:9px;padding:14px;margin:0 0 10px;background:var(--paper)}.tree-comment.mine{background:#f5f7f2;border-color:#dce4d6}.tree-comment.selected-target{background:#fff6ee;border-color:#d59677;box-shadow:inset 3px 0 0 var(--accent)}.tree-comment .comment-meta{gap:7px}.tree-comment .comment-text{font-size:15px;white-space:pre-wrap;overflow-wrap:anywhere;margin:10px 0;line-height:1.8}.tree-comment.long-comment .comment-text{display:-webkit-box;-webkit-line-clamp:5;-webkit-box-orient:vertical;overflow:hidden}.tree-comment .select-target{font-size:12px;padding:5px 0;color:var(--accent)}.tree-comment .text-toggle{display:block;font-size:12px;padding:4px 0}.tree-comment>.badge{font-size:10px;margin-left:12px;padding:2px 5px}.branch>summary{cursor:pointer;color:var(--muted);font-size:12px;padding:2px 0 14px 12px}.tree-children{border-left:1px solid var(--line);padding-left:15px;margin:0 0 12px 8px}.deep .tree-children{padding-left:6px;margin-left:2px}.composer{min-width:0;border-left:1px solid var(--line);background:var(--bg);max-height:calc(100vh - 160px);overflow:auto;padding:20px;scrollbar-gutter:stable}.composer-head h3{font:600 19px system-ui,sans-serif;margin:9px 0}.selected-quote{font-size:14px;line-height:1.7;margin:12px 0;padding:12px;background:var(--paper);border-left:2px solid #d59677;white-space:pre-wrap;overflow-wrap:anywhere;max-height:180px;overflow:auto}.composer .analysis-reason{font-size:14px;margin:14px 0}.composer-head>.primary{width:100%;font-size:14px}.draft-card{background:var(--paper);border:1px solid var(--line);border-radius:10px;padding:18px;margin:18px 0}.draft-card .section-head{margin-bottom:10px}.draft-card h3{font:600 17px system-ui,sans-serif}.draft-card .draft{font-size:15px;padding:12px;min-height:125px}.draft-card[data-kind=evidence] .draft:not(.feedback){min-height:180px}.draft-counter{text-align:right;font-size:11px;color:var(--muted);margin:6px 0}.draft-card .actions{gap:8px;margin:12px 0}.draft-card .actions button{font-size:13px;padding:9px 12px}.draft-card .inline-alert{padding:10px;font-size:12px}.generator-line{font-size:11px;line-height:1.6;color:var(--muted);margin:7px 0}.correction{border-top:1px solid var(--line);margin-top:15px;padding-top:13px}.correction>summary{cursor:pointer;font-size:13px;color:var(--accent)}.correction .feedback{margin:12px 0;font-size:14px;min-height:95px}.correction>button{font-size:13px}.feedback-history{font-size:12px;color:var(--muted);margin:12px 0;max-height:160px;overflow:auto}.generation-explainer{padding:0 4px;margin-top:18px}.draft-card .hint{font-size:12px}.composer>h3{font-size:19px}
@media(max-width:1350px){main{padding:28px 24px}.workspace{grid-template-columns:240px minmax(0,1fr);gap:18px}.conversation-layout{grid-template-columns:minmax(250px,1fr) minmax(310px,.95fr)}.discussion-tree,.composer{padding:14px}.draft-card{padding:14px}}
@media(max-width:1050px){.conversation-layout{grid-template-columns:1fr}.discussion-tree{max-height:540px}.composer{border-left:0;border-top:1px solid var(--line);max-height:none}.items{max-height:760px}.inbox{position:static}}
@media(max-width:650px){.workspace{display:flex}.inbox,.detail{width:100%}.items{max-height:270px}main{padding:24px 16px}.discussion-controls{padding:14px}.detail-head{padding:20px}.discussion-tree{padding:14px;max-height:520px}.composer{padding:14px}.tree-children{padding-left:9px;margin-left:3px}.tree-comment{padding:12px}.draft-card .draft{font-size:16px}}
.draft-jump{display:flex;gap:8px;border-bottom:1px solid var(--line);padding-bottom:8px}.draft-jump button{font-size:13px;color:var(--accent)}