:root{--paper:#f6f4ec;--panel:#fffefa;--ink:#273a35;--muted:#718179;--green:#365c4c;--light:#e9efe7;--line:#dbe2d8;--clay:#a36141;--danger:#a54037;--radius:18px}
*{box-sizing:border-box}body{margin:0;color:var(--ink);background:radial-gradient(ellipse at 90% 0%,#dce8dc88,transparent 45%),radial-gradient(ellipse at 0% 85%,#ede4d588,transparent 45%),var(--paper);font-family:"Microsoft YaHei","PingFang SC",sans-serif;font-size:14px;line-height:1.65}button,input,select,textarea{font:inherit}button{cursor:pointer}button:disabled{opacity:.5;cursor:wait}input,select,textarea{width:100%;border:1px solid var(--line);border-radius:12px;padding:11px 13px;background:var(--panel);color:var(--ink)}textarea{resize:vertical;min-height:92px}input:focus,select:focus,textarea:focus{outline:2px solid #6d927858;outline-offset:1px}button:focus-visible{outline:2px solid var(--clay);outline-offset:3px}label{display:block;font-size:13px;margin:14px 0 7px}h1,h2,h3,p{margin-top:0}h1,h2,h3{font-family:"Songti SC","STSong","SimSun",serif;font-weight:600;line-height:1.4}h1{font-size:22px;margin-bottom:0}h2{font-size:24px;margin-bottom:12px}h3{font-size:18px;margin:25px 0 10px}p{margin-bottom:12px}.eyebrow{font-size:10px;letter-spacing:1.7px;font-weight:600;color:var(--muted);margin-bottom:4px}.muted{color:var(--muted)}.small{font-size:11px}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0)}[hidden]{display:none!important}.app-shell{max-width:1080px;margin:0 auto;padding:22px}.brand{display:flex;align-items:center;gap:12px;padding-bottom:20px;border-bottom:1px solid var(--line)}.brand-mark{width:42px;height:42px;border:1px solid #6f907b;border-radius:50%;display:grid;place-items:center;background:#e9eee2}.brand-mark span{width:21px;height:25px;display:block;border:1px solid var(--green);border-radius:70% 8% 70% 8%;transform:rotate(-12deg)}.badge{margin-left:auto;font-size:11px;border:1px solid var(--line);padding:4px 10px;border-radius:20px;color:var(--green);white-space:nowrap}.notice{margin:14px 0;padding:10px 13px;font-size:12px;background:#f1e8d7;border-radius:10px;color:#80602f}.notice.error{background:#f8e7e1;color:var(--danger)}.login-panel{max-width:430px;margin:45px auto;background:var(--panel);padding:28px;border:1px solid var(--line);border-radius:var(--radius)}.login-panel h2{font-size:28px;margin:7px 0 17px}.login-panel .primary{margin-top:23px}.error{color:var(--danger);font-size:12px}.primary,.secondary{width:100%;border-radius:12px;padding:12px 15px;border:1px solid var(--green);font-weight:600}.primary{background:var(--green);color:white;display:flex;justify-content:center;gap:12px}.primary:hover{background:#254838}.secondary{background:var(--panel);color:var(--green);border-color:var(--line)}.secondary:hover{background:var(--light)}.text-button{background:none;border:0;padding:3px 5px;color:var(--green);font-size:12px;white-space:nowrap}.text-button:hover{text-decoration:underline}.account-line{display:flex;gap:10px;align-items:center;padding:13px 0;font-size:12px}.account-line .text-button{margin-left:auto}.workspace-grid{display:grid;grid-template-columns:255px minmax(0,1fr);gap:20px;align-items:start}.customer-panel{border:1px solid var(--line);border-radius:var(--radius);padding:17px;background:#fffefaac}.section-title{display:flex;align-items:center;justify-content:space-between;margin-bottom:11px}.section-title h2{font-size:19px;margin:0}.customer-panel input{font-size:12px;background:#fff}.customer-list{max-height:560px;overflow-y:auto;margin-top:13px;scrollbar-width:thin}.customer-item{display:block;text-align:left;width:100%;border:0;border-bottom:1px solid #e6eadd;padding:12px 10px;background:transparent;border-radius:9px;color:var(--ink)}.customer-item:hover{background:#eef1e8}.customer-item.active{background:var(--light)}.customer-item strong{display:block;font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.customer-item span{display:block;font-size:10px;color:var(--muted);margin-top:3px}.list-note{margin:14px 0 0}.main-panel{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;min-width:0}.customer-card{padding:20px 22px 15px;display:flex;flex-wrap:wrap;align-items:center;gap:10px}.customer-card h2{font-size:21px;margin-bottom:0}.customer-card .text-button{margin-left:auto}.customer-card p.small{flex-basis:100%;margin:0}.tabs{display:grid;grid-template-columns:repeat(5,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:#f7f8f0}.tabs button{padding:12px 2px;background:none;border:0;border-bottom:2px solid transparent;font-size:13px;color:var(--muted)}.tabs button.active{color:var(--green);border-bottom-color:var(--green);font-weight:700}.view{padding:20px 22px;animation:appear .28s ease-out}.view-heading{display:flex;justify-content:space-between;gap:8px;margin-bottom:12px}.messages{height:460px;overflow:auto;scrollbar-width:thin;padding:6px 1px;overscroll-behavior:contain}.message{max-width:88%;margin:0 0 18px}.message.outbound{margin-left:auto}.message-info{font-size:10px;color:var(--muted);margin-bottom:5px;display:flex;gap:10px}.message.outbound .message-info{justify-content:flex-end}.bubble{padding:12px 14px;white-space:pre-wrap;overflow-wrap:anywhere;border:1px solid var(--line);border-radius:3px 14px 14px 14px;background:#fafbf5}.outbound .bubble{background:var(--light);border-color:#dfe7d8;border-radius:14px 3px 14px 14px}.media-bubble{font-size:12px;color:var(--muted)}.empty-state{min-height:210px;display:flex;flex-direction:column;align-items:center;justify-content:center;color:var(--muted);font-size:13px;padding:20px;text-align:center}.quiet-ring{width:42px;height:42px;border:1px solid #acc0a7;border-radius:50%;box-shadow:0 0 0 9px #f1f3e9;margin-bottom:25px}.load-older{margin-top:12px;font-size:12px;padding:9px}.feature-intro{margin:3px 0 21px}.feature-intro h2{font-size:26px;margin:7px 0 10px}.feature-intro p.muted{font-size:13px}.result{margin-top:18px;white-space:pre-wrap;overflow-wrap:anywhere;font-size:14px;line-height:1.85}.result:not(:empty){border-top:1px solid var(--line);padding-top:18px}.result h3{white-space:normal;font-size:18px;margin:20px 0 9px}.result h3:first-child{margin-top:0}.result p{margin-bottom:11px}.copy-button{margin-top:16px;font-size:12px;padding:9px}.or-line{display:flex;align-items:center;gap:10px;color:var(--muted);font-size:11px;margin:22px 0 0}.or-line:before,.or-line:after{content:"";height:1px;background:var(--line);flex:1}#askButton{margin-top:12px}#polishButton{margin-top:18px}.price-line{display:flex;align-items:baseline;gap:16px;margin:20px 0;color:var(--clay)}.price-line strong{font-family:Georgia,serif;font-size:41px;font-weight:400}.price-line strong span{font-family:"Microsoft YaHei",sans-serif;font-size:14px;margin-left:8px}.price-line>span{font-size:12px}.facts-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;padding:16px 0;margin-bottom:15px;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.facts-grid strong,.facts-grid span{display:block}.facts-grid strong{font-size:13px;font-weight:500}.facts-grid span{font-size:11px;color:var(--muted);margin-top:4px}.registration{border:1px dashed #bfcbb8;border-radius:10px;padding:12px;font-size:13px;margin:20px 0}.source-item{padding:10px 0;border-bottom:1px solid var(--line);font-size:12px;overflow-wrap:anywhere}.source-item span{display:block;color:var(--muted);font-size:10px;margin-top:4px}.generation-status{display:flex;align-items:center;gap:9px;border-top:1px solid var(--line);padding:12px 20px;color:var(--green);font-size:12px}.generation-status .text-button{margin-left:auto}.spinner{width:12px;height:12px;border:1px solid #b2c8b6;border-top-color:var(--green);border-radius:50%;animation:spin 1s linear infinite}.references{border-top:1px solid var(--line);padding:12px 22px;background:#f7f8f0;font-size:10px;color:var(--muted);overflow-wrap:anywhere}footer{font-size:10px;color:var(--muted);display:flex;justify-content:space-between;padding:22px 2px 8px;letter-spacing:.4px}@keyframes spin{to{transform:rotate(360deg)}}@keyframes appear{from{opacity:0;transform:translateY(5px)}to{opacity:1;transform:translateY(0)}}
@media(max-width:700px){.app-shell{padding:14px 10px;max-width:500px}.brand{gap:9px;padding:0 3px 14px}.brand-mark{width:34px;height:34px}.brand-mark span{width:17px;height:21px}h1{font-size:19px}.eyebrow{font-size:9px}.badge{font-size:10px;padding:3px 8px}.account-line{font-size:11px;gap:8px}.workspace-grid{grid-template-columns:1fr;gap:12px}.customer-panel{padding:14px}.customer-list{max-height:230px}.customer-card{padding:17px 16px 13px}.customer-card h2{font-size:19px}.tabs button{padding:11px 2px;font-size:12px}.view{padding:17px 16px}.view-heading{align-items:center}.view-heading .small{font-size:10px}.messages{height:min(53vh,500px);min-height:260px}.message{max-width:93%}.bubble{padding:10px 12px;font-size:13px}.feature-intro h2{font-size:24px}.result{font-size:13px}.login-panel{margin:30px auto;padding:23px 20px}.login-panel h2{font-size:25px}.notice{font-size:11px}.generation-status{padding:10px 16px}.references{padding:10px 16px}.main-panel{border-radius:15px}}
@media(prefers-reduced-motion:reduce){*{animation:none!important;scroll-behavior:auto!important}}
.workspace-grid.single-column{grid-template-columns:minmax(0,1fr)}
.view-heading select{width:auto;max-width:70%;font-size:12px;padding:6px 10px}.message-info{flex-wrap:wrap;overflow-wrap:anywhere}.message-info time{white-space:nowrap}#sourceStatus{overflow-wrap:anywhere}