:root{font-family:Inter,ui-sans-serif,system-ui,-apple-system,Segoe UI,PingFang SC,Microsoft YaHei,sans-serif;color:#172126;background:#f5f7f7;font-synthesis:none}*{box-sizing:border-box}body{margin:0;min-width:320px}button,textarea{font:inherit}button{cursor:pointer;border:0}.shell{min-height:100vh;display:flex;flex-direction:column;background:radial-gradient(circle at 74% 8%,#e1f1ed 0,#f5f7f7 35%)}.topbar{height:72px;display:flex;align-items:center;padding:0 4vw;border-bottom:1px solid #dfe7e4;background:#fbfcfcdd;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);gap:30px}.brand{display:flex;align-items:center;gap:10px;min-width:190px}.brand strong{display:block;font-family:Georgia,serif;font-size:17px;letter-spacing:.02em}.brand small{display:block;font-size:11px;color:#70807e;margin-top:2px}.mark{display:grid;place-items:center;width:34px;height:34px;border-radius:11px;background:#143b3b;color:#d8f27b;font-weight:800;font-size:12px;letter-spacing:-.08em}.app-switch{display:flex;gap:3px;background:#eef2f1;border-radius:10px;padding:3px}.app-switch button{padding:7px 14px;border-radius:8px;background:transparent;color:#687572;font-size:13px}.app-switch button.active{background:#fff;color:#173b39;box-shadow:0 1px 4px #173b391a}.account{margin-left:auto;display:flex;align-items:center;gap:12px;font-size:13px;color:#586963}.workspace{display:grid;grid-template-columns:230px minmax(0,1fr) 290px;gap:0;max-width:1440px;width:100%;margin:0 auto;flex:1;min-height:calc(100vh - 116px)}.sidebar{border-right:1px solid #dfe7e4;padding:30px 14px}.side-title,.summary-head{display:flex;justify-content:space-between;align-items:center}.side-title{padding:0 10px 16px;font-size:12px;text-transform:uppercase;letter-spacing:.12em;color:#7a8986}.icon-button{background:#dff278;color:#173b39;width:27px;height:27px;border-radius:8px;font-size:19px;line-height:1}.conversation{display:flex;align-items:center;width:100%;text-align:left;background:transparent;padding:12px 10px;border-radius:10px;color:#52625f;gap:6px}.conversation span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;flex:1;font-size:13px}.conversation time{font-size:10px;color:#98a4a1}.conversation.selected{background:#e5efeb;color:#173b39;font-weight:600}.empty-side{font-size:12px;color:#9aa6a3;padding:22px 10px;line-height:1.6}.chat-panel{display:flex;flex-direction:column;min-width:0;padding:34px clamp(22px,5vw,72px) 22px}.chat-head{display:flex;justify-content:space-between;align-items:flex-start;border-bottom:1px solid #dfe7e4;padding-bottom:18px}.eyebrow{font-size:11px;color:#74827f;letter-spacing:.12em;text-transform:uppercase}.chat-head h1,.summary-head h2{font-family:Georgia,serif;font-weight:500;margin:6px 0 0;color:#173b39}.chat-head h1{font-size:24px}.status{font-size:11px;color:#a46e3c;border:1px solid #ead9c8;padding:5px 9px;border-radius:99px}.status.ready{color:#277361;border-color:#bddfd3}.messages{flex:1;overflow:auto;padding:26px 0}.message{display:flex;gap:12px;max-width:760px;margin:0 0 22px}.message.user{margin-left:auto;flex-direction:row-reverse}.avatar{width:28px;height:28px;display:grid;place-items:center;flex:none;border-radius:9px;background:#dce8e4;color:#2a5b55;font-size:10px;font-weight:700}.user .avatar{background:#173b39;color:#dff278}.bubble{max-width:calc(100% - 45px);background:#fff;border:1px solid #e3eae8;border-radius:4px 14px 14px;padding:11px 14px;box-shadow:0 4px 15px #173b3908}.user .bubble{background:#173b39;color:#f4faf7;border-radius:14px 4px 14px 14px;border:0}.role-label{font-size:10px;opacity:.6;margin-bottom:5px}.content{white-space:pre-wrap;line-height:1.6;font-size:14px}.bubble small{display:block;margin-top:7px;font-size:10px;opacity:.55}.cursor{display:inline-block;width:7px;height:15px;background:#acd14f;vertical-align:-2px;margin-left:2px;animation:blink 1s infinite}@keyframes blink{50%{opacity:0}}.welcome{margin:auto;text-align:center;color:#6d7d79}.welcome-kicker{font-size:11px;letter-spacing:.15em;text-transform:uppercase;color:#6a8d83}.welcome h2{font-family:Georgia,serif;font-weight:400;font-size:34px;line-height:1.3;color:#173b39;margin:14px 0}.welcome p{font-size:13px;line-height:1.7}.landing{max-width:520px}.login-banner{display:flex;justify-content:space-between;align-items:center;gap:15px;background:#eff5d9;border:1px solid #dce9a7;border-radius:13px;padding:13px 16px;margin-bottom:22px}.login-banner b,.login-banner span{display:block}.login-banner b{font-size:13px;color:#31524b}.login-banner span{font-size:11px;color:#74826b;margin-top:4px}.composer{border:1px solid #cad8d3;background:#fff;border-radius:15px;padding:12px 14px;box-shadow:0 9px 24px #173b390b}.composer textarea{width:100%;min-height:56px;border:0;outline:0;resize:vertical;color:#233632;line-height:1.5;font-size:14px}.compose-foot{display:flex;justify-content:space-between;align-items:center;color:#93a09d;font-size:10px}.send{min-width:72px}.primary,.secondary,.ghost{border-radius:9px;padding:9px 14px;font-size:12px}.primary{background:#173b39;color:#f4faef}.primary:disabled,.secondary:disabled{opacity:.45;cursor:not-allowed}.primary.compact{padding:7px 14px}.secondary{background:#dff278;color:#173b39}.ghost{background:transparent;color:#58706a;padding:5px 8px}.error{color:#a3453d;font-size:12px;padding:10px 0}.summary-panel{border-left:1px solid #dfe7e4;background:#f8faf9;padding:34px 24px}.summary-head h2{font-size:21px}.summary-head .ghost{font-size:11px}.hint{font-size:12px;color:#81908c;line-height:1.6;margin:20px 0}.summary-editor{width:100%;min-height:240px;resize:vertical;border:1px solid #cedbd6;background:#fff;border-radius:12px;padding:13px;line-height:1.65;font-size:13px;color:#42544f;outline-color:#9fc260}.summary-empty{border:1px dashed #cad8d3;border-radius:12px;text-align:center;padding:34px 18px;color:#899793}.summary-empty span{font-size:22px;color:#a7c950}.summary-empty p{font-size:12px;line-height:1.6}.summary-actions{display:flex;align-items:center;gap:7px;flex-wrap:wrap;margin-top:13px}.summary-actions .confirmed{font-size:11px;color:#28715d;margin-right:auto}.summary-actions .primary,.summary-actions .secondary{padding:8px 10px;font-size:11px}footer{height:44px;display:flex;justify-content:space-between;align-items:center;padding:0 4vw;border-top:1px solid #dfe7e4;color:#879490;font-size:10px}@media (max-width:1000px){.workspace{grid-template-columns:190px minmax(0,1fr)}.summary-panel{display:none}}@media (max-width:650px){.topbar{height:62px;padding:0 16px;gap:10px}.brand{min-width:auto}.brand>div{display:none}.app-switch{margin-left:auto}.app-switch button{padding:6px 8px;font-size:11px}.account span{display:none}.workspace{display:block;min-height:calc(100vh - 106px)}.sidebar{border:0;border-bottom:1px solid #dfe7e4;padding:10px 14px;display:flex;gap:6px;overflow:auto}.side-title{padding:7px 5px;min-width:78px}.conversation{min-width:130px;width:auto;padding:9px}.conversation time{display:none}.empty-side{padding:8px}.chat-panel{padding:20px 15px 14px;min-height:calc(100vh - 176px)}.chat-head h1{font-size:20px}.login-banner{align-items:flex-start;flex-direction:column}.login-banner .primary{width:100%}.messages{padding:20px 0}.message{gap:8px}.bubble{max-width:calc(100% - 36px)}.welcome h2{font-size:28px}.compose-foot>span{display:none}.compose-foot{justify-content:flex-end}footer{padding:0 15px}footer span:last-child{display:none}}