:root{--paper:#f5f3ec;--ink:#283b35;--muted:#727b71;--line:#dedfd3;--accent:#315749;--white:#fffefa;--gold:#b29865}*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font:16px/1.7 -apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif}button,input,textarea,select{font:inherit}button,a,input,textarea,select{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button:disabled{opacity:.5;cursor:wait}a{color:inherit}button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{outline:3px solid #afbd9b;outline-offset:3px}[hidden]{display:none!important}.entrance{min-height:100svh;max-width:1200px;margin:auto;padding:9vh 45px;display:grid;grid-template-columns:1.3fr 1fr;gap:100px;align-items:center}.eyebrow,.small-label{font-size:11px;letter-spacing:2px;color:var(--muted);font-weight:600}.intro h1{font-family:Georgia,"Songti SC",serif;font-weight:500;font-size:clamp(36px,4.6vw,60px);line-height:1.4;letter-spacing:1px;margin:30px 0}.lede{color:#687168;font-size:18px;line-height:1.9}.intro-note{border-left:1px solid var(--gold);padding-left:24px;margin-top:42px}.intro-note span{font-size:11px;letter-spacing:2px;color:#8b7955}.intro-note p{margin:4px 0 18px;font-size:14px}.entry-card{background:var(--white);padding:40px;border:1px solid var(--line);border-radius:6px;box-shadow:0 18px 60px #283b3506}.entry-card h2{font-size:24px;font-weight:500;margin:14px 0 30px}.entry-card>label{font-size:13px}.entry-card input[type=password]{width:100%;padding:12px;margin:8px 0 20px;border:1px solid var(--line);border-radius:4px;background:#faf9f5;font-size:16px}.privacy{font-size:12px;color:var(--muted)}.check{display:flex;gap:10px;align-items:flex-start;margin:18px 0 24px}.check input{margin-top:5px;accent-color:var(--accent)}.primary{background:var(--accent);border:1px solid var(--accent);color:white;border-radius:5px;padding:10px 20px;font-size:14px;min-height:44px}.primary:hover{background:#214538}.wide{width:100%;display:flex;justify-content:space-between}.muted{font-size:12px;color:var(--muted)}.error{color:#9d4435;font-size:13px}.quiet{background:none;border:0;color:var(--muted);padding:8px}.outline{border:1px solid var(--line);background:transparent;border-radius:4px;padding:8px 14px;color:var(--ink);font-size:13px;min-height:44px}header{height:82px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 5vw}.brand{font-family:"Songti SC",serif;font-size:27px;letter-spacing:4px;text-decoration:none}.brand span{font-family:sans-serif;font-size:11px;letter-spacing:2px;color:var(--muted);margin-left:20px}.header-right{display:flex;gap:24px;align-items:center;font-size:13px}.layout{max-width:1400px;margin:auto;display:grid;grid-template-columns:260px minmax(0,1fr);min-height:calc(100svh - 82px)}.rail{padding:45px 30px;border-right:1px solid var(--line);display:flex;flex-direction:column}.rail h2{font:500 27px/1.6 "Songti SC",serif;margin:18px 0 30px}.nav{display:flex;justify-content:space-between;width:100%;padding:13px 15px;background:transparent;border:0;text-align:left;color:#727b71;margin:4px 0;border-radius:4px;font-size:14px}.nav.active{color:var(--accent);background:#e7ebdf;font-weight:600}.nav span{font-size:12px;font-weight:400}.rail-footer{margin-top:auto;padding-top:50px;font-size:12px;color:var(--muted)}.rail-footer a{font-size:12px;text-decoration:none;border-bottom:1px solid #bbc3b7}.dot{display:inline-block;width:6px;height:6px;background:#6c8f70;border-radius:50%;margin-right:6px}.panel{padding:38px 5vw 35px;min-width:0}.panel-heading{display:flex;gap:20px;justify-content:space-between;align-items:center}.panel h1{font:500 26px/1.5 "Songti SC",serif;margin:7px 0 14px}.topic-strip{display:flex;gap:8px;flex-wrap:wrap;margin:6px 0 22px}.topic{font-size:11px;background:transparent;color:var(--muted);border:1px solid var(--line);border-radius:20px;padding:5px 10px}.topic.current{background:#e7ebdf;border-color:#c7d0bf}.messages{min-height:250px}.message{margin:24px 0;max-width:720px}.message .label{font-size:10px;letter-spacing:1px;color:var(--muted);margin-bottom:8px}.message .body{white-space:pre-wrap;overflow-wrap:anywhere;line-height:1.85}.message.user{margin-left:9%;background:#e9ede3;border-radius:8px 8px 0 8px;padding:18px 22px}.message.assistant{padding:10px 0 12px}.message.assistant .label{color:#8b7955}.composer{margin-top:28px;background:var(--white);border:1px solid #cbd2c3;border-radius:9px;padding:16px;box-shadow:0 6px 20px #283b3505}.composer textarea{display:block;width:100%;resize:vertical;min-height:100px;max-height:45svh;border:0;background:transparent;color:var(--ink);font-size:16px;line-height:1.8;outline:none!important}.composer-bottom{display:flex;justify-content:space-between;align-items:center;gap:10px;padding-top:12px;border-top:1px solid #eeeee5}.composer-bottom span{font-size:11px;color:var(--muted)}.pending{font-size:13px;color:var(--muted);padding:10px 0}.pulse{display:inline-block;width:6px;height:6px;border-radius:50%;background:#8ca080;margin-right:8px;animation:pulse 1.5s infinite}@keyframes pulse{50%{opacity:.3}}.banner{background:#e7ebdf;border-left:2px solid #77916d;padding:12px 18px;font-size:13px;margin:15px 0}.section-intro{font-size:14px;color:var(--muted);max-width:650px}.upload-box{border:1px dashed #afbca4;border-radius:8px;padding:25px;margin:25px 0;background:#eeefe5}.upload-box label{display:block;font-size:18px;margin-bottom:12px}.upload-box input{max-width:100%;font-size:14px}.upload-box p{font-size:12px;color:var(--muted)}#upload-status{font-size:12px;margin-left:12px}.cards{display:grid;gap:16px;margin-top:20px}.card{border:1px solid var(--line);background:var(--white);padding:22px;border-radius:6px;overflow-wrap:anywhere}.card h3{font-size:16px;font-weight:500;margin:0 0 8px}.card p{font-size:14px}.card .meta{font-size:11px;color:var(--muted);display:flex;justify-content:space-between;gap:12px}.card blockquote{border-left:2px solid #c2b28b;padding:8px 15px;margin:15px 0;background:#f6f4ed;font-size:13px;color:#697167;white-space:pre-wrap}.card-actions{display:flex;gap:8px;flex-wrap:wrap;margin-top:14px}.card textarea{width:100%;border:1px solid var(--line);padding:10px;font-size:16px;background:#faf9f5;min-height:75px}.card select{max-width:100%;padding:7px;border:1px solid var(--line);background:transparent;color:var(--ink);font-size:13px}.empty{padding:40px 20px;border:1px dashed var(--line);color:var(--muted);font-size:14px;text-align:center}dialog{width:min(850px,94vw);max-height:85svh;border:1px solid var(--line);border-radius:8px;background:var(--white);color:var(--ink);padding:28px}dialog::backdrop{background:#23332ba8}.dialog-top{display:flex;justify-content:space-between;gap:15px;align-items:center}.dialog-top h2{font-size:18px}pre{white-space:pre-wrap;overflow-wrap:anywhere;font-size:14px;line-height:1.9;font-family:inherit}.toast{position:fixed;bottom:24px;left:50%;transform:translateX(-50%);background:#283b35;color:white;padding:12px 22px;border-radius:5px;z-index:20;max-width:90vw;font-size:13px}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0)}@media(max-width:800px){.entrance{display:block;padding:35px 22px}.intro h1{font-size:38px;margin:22px 0}.intro-note{display:none}.entry-card{margin-top:30px;padding:24px}.lede{font-size:15px}header{height:66px;padding:0 20px}.brand{font-size:23px}.brand span{font-size:10px;margin-left:12px}.header-right{gap:8px}.layout{display:block}.rail{padding:14px 16px;border-right:0;border-bottom:1px solid var(--line)}.rail>.small-label,.rail h2,.rail-footer{display:none}nav{display:flex;gap:4px}.nav{justify-content:center;gap:10px;margin:0;padding:9px 12px;font-size:13px}.panel{padding:25px 20px 30px}.panel h1{font-size:23px}.panel-heading{align-items:flex-start;gap:10px}.panel-heading>.outline{white-space:nowrap;padding:8px;font-size:11px}.message{margin:20px 0}.message.user{margin-left:5%;padding:14px 17px}.composer{padding:12px}.composer-bottom span{max-width:150px;font-size:10px}.composer .primary{padding:10px 14px;white-space:nowrap}.topic{padding:5px 9px}.card{padding:18px}.upload-box{padding:20px}.messages{min-height:220px}dialog{padding:20px}}@media(prefers-reduced-motion:reduce){*{animation:none!important;scroll-behavior:auto!important}}

.upload-box.drag{border-color:var(--accent);background:#e0e8d9}.panel{max-width:1080px}.cards{grid-template-columns:repeat(auto-fit,minmax(min(100%,340px),1fr))}#editor .cards{grid-template-columns:1fr}#source-dialog{width:min(1040px,94vw)}

.host-card{display:flex;align-items:center;gap:28px;margin:22px 0 25px;padding:22px;background:#ebece2;border:1px solid #d7ddcd;border-radius:7px}.host-card img{width:132px;height:148px;object-fit:cover;object-position:center 25%;border-radius:4px;filter:saturate(.8)}.host-card h2{font:500 25px/1.5 "Songti SC",serif;margin:6px 0}.host-card p{font-size:13px;color:#727b71;margin:7px 0 14px}.host-state{font-size:11px;color:#54725a}.host-card.thinking{border-color:#aebc9f}.host-card.thinking img{animation:host-breathe 3s ease-in-out infinite}@keyframes host-breathe{50%{opacity:.88}}@media(max-width:800px){.host-card{padding:15px;gap:17px}.host-card img{width:78px;height:92px}.host-card h2{font-size:19px}.host-card p{display:none}.host-card .small-label{font-size:9px}.host-state{font-size:10px}}

.material-first{display:flex;align-items:center;gap:18px;margin:0 0 22px}.material-first span{font-size:12px;color:var(--muted)}@media(max-width:800px){.material-first{align-items:flex-start;flex-direction:column;gap:8px}}