:root{font-family:Inter,"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;color:#253c35;background:#f6f7f0;font-synthesis:none;font-size:14px;line-height:1.6;--muted:#75847b;--border:#dbe2d8;--green:#264f40;--mint:#dce9d3}*{box-sizing:border-box}body{margin:0}button,input,textarea{font:inherit}button,a,input,textarea{-webkit-tap-highlight-color:transparent}button{border:1px solid #cbd6c8;border-radius:10px;padding:11px 17px;background:#fff;color:inherit;cursor:pointer;transition:background .15s}button:hover:enabled{background:#ecf2e7}button:disabled{opacity:.45;cursor:default}button.primary{background:var(--green);color:#fff;border-color:var(--green)}button.primary:hover:enabled{background:#396c57}button.quiet{border-color:transparent;background:transparent;color:#64776a;padding:8px}a{color:inherit;text-decoration:none}button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible{outline:3px solid #85af77;outline-offset:4px}[hidden]{display:none!important}.shell{max-width:1380px;margin:auto;padding:0 44px}.topbar{height:96px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--border)}.brand{display:inline-flex;gap:12px;align-items:center;font-size:21px;font-weight:650;letter-spacing:-.7px}.brand-mark{width:42px;height:42px;display:grid;place-items:center;border-radius:13px;background:var(--green);color:white;font-size:22px;font-weight:400}.brand small{display:block;font-size:8px;letter-spacing:2px;font-weight:500;color:var(--muted);margin-top:1px}.account{display:flex;gap:16px;align-items:center;font-size:12px}.demo-layout{display:grid;grid-template-columns:minmax(0,1.3fr) minmax(340px,1fr);gap:38px;padding:32px 0}.stage{min-width:0}.stage-heading{position:relative;z-index:1}.eyebrow{font-size:10px;letter-spacing:2px;color:var(--muted);margin:0 0 14px}h1{font-size:clamp(30px,3.3vw,48px);line-height:1.24;font-weight:550;letter-spacing:-1.6px;margin:0}h2{font-size:24px;line-height:1.35;font-weight:550;margin:0 0 12px}.intro{color:#71816f;font-size:12px;margin:15px 0}.viewport{position:relative;height:355px;margin-top:-35px;isolation:isolate}.halo{position:absolute;inset:50px 8% 15px;border-radius:50%;background:radial-gradient(ellipse,#dce8cf 0,#ecf0df 50%,transparent 72%);z-index:-1}canvas{display:block;width:100%;height:100%;position:relative;z-index:1}.loading{position:absolute;inset:50px 0 30px;display:flex;align-items:center;justify-content:center;flex-direction:column;z-index:2;gap:7px;text-align:center;background:#f0f3e7d9;border-radius:24px}.loading p{margin:0}.load-symbol{font-size:44px;line-height:1;color:#7c9c6d}.loading progress{width:200px;height:5px;accent-color:var(--green);margin:9px}.stage-caption{position:absolute;bottom:1px;left:50%;transform:translateX(-50%);white-space:nowrap;font-size:10px;color:#7b8b76;display:flex;align-items:center;gap:7px}.dot{width:6px;height:6px;border-radius:50%;background:#a1af97}.dot.live{background:#3d865a;box-shadow:0 0 0 3px #3d865a16}.status-row{border-top:1px solid var(--border);margin-top:18px;padding:20px 0 16px;display:flex;align-items:center;justify-content:space-between;gap:15px}.activity{font-size:15px;margin:0 0 4px}.small{font-size:11px;color:var(--muted);margin:0}.timer{flex-shrink:0;text-align:right}.timer span{font-size:9px;display:block;color:var(--muted)}.timer strong{font-size:21px;font-weight:500;letter-spacing:1px;font-variant-numeric:tabular-nums}.controls{display:flex;flex-wrap:wrap;gap:8px}.privacy{font-size:10px;color:#81907c;line-height:1.9;margin-top:18px;max-width:560px}.notice{font-size:12px;color:#975339;background:#f9ece1;border:1px solid #e9d6c5;padding:10px 13px;border-radius:8px;overflow-wrap:anywhere}.conversation{background:#fff;border:1px solid var(--border);border-radius:20px;padding:27px;display:flex;flex-direction:column;min-height:680px;max-height:850px;box-shadow:0 8px 35px #324f2b03}.conversation-heading{border-bottom:1px solid #edf0e8;padding-bottom:16px}.conversation-heading .eyebrow{margin-bottom:10px}.conversation-heading p:last-child{font-size:12px;line-height:1.8;color:var(--muted);margin:0}.messages{flex:1;overflow:auto;min-height:170px;max-height:330px;scrollbar-width:thin;padding:20px 0}.welcome{padding:16px 0;color:#778e75;font-size:15px}.welcome p{font-size:12px;color:#97a18e}.message{margin-bottom:17px}.message .speaker{font-size:9px;letter-spacing:.5px;color:#7f8f78}.message p{white-space:pre-wrap;overflow-wrap:anywhere;padding:12px 14px;border-radius:2px 12px 12px;background:#f2f5ed;margin:5px 0 0;font-size:13px}.message.user p{background:#e8eee1}.suggestions{display:grid;gap:7px;padding:10px 0 18px}.suggestion{text-align:left;font-size:11px;padding:9px 11px;border-color:#e3e9de;border-radius:7px}.suggestion::before{content:'↗';padding-right:9px;color:#8aa47a}#text-form{padding:13px 13px 10px;background:#f8f9f5;border:1px solid #dce4d6;border-radius:12px}textarea{background:transparent;width:100%;resize:vertical;min-height:52px;max-height:140px;border:0;outline:none;color:inherit;font-size:13px}textarea::placeholder{color:#9ca693}.composer-footer{display:flex;justify-content:space-between;align-items:center;gap:8px}.composer-footer span{font-size:9px;color:#95a08b}.composer-footer button{font-size:11px;padding:8px 13px}.footer{display:flex;gap:22px;align-items:center;border-top:1px solid var(--border);padding:13px 0 22px;color:#8c9785;font-size:9px;letter-spacing:1px}.footer button{font-size:10px;margin-left:auto}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap}.login-page{min-height:100dvh;display:grid;place-items:center;padding:30px;background:radial-gradient(ellipse at 20% 30%,#e2ebd8,transparent 60%),#f6f7f0}.login-card{width:100%;max-width:440px;background:#ffffffd9;border:1px solid var(--border);border-radius:25px;padding:38px;box-shadow:0 20px 80px #31512b0a}.login-card .brand{margin-bottom:45px}.login-card h1{font-size:40px}.login-card form{display:grid;gap:9px;margin:30px 0 23px}.login-card label{font-size:12px}.login-card input{width:100%;border:1px solid #d7dfd2;border-radius:8px;background:white;padding:11px 12px;color:inherit;margin-bottom:8px}.login-card form button{margin-top:6px}.login-card .privacy{margin-bottom:0}.login-card .notice{margin:0}@media(min-width:1500px){.shell{padding-top:25px}.demo-layout{padding-top:40px}.viewport{height:390px}}@media(max-width:900px){.shell{padding:0 22px}.demo-layout{gap:23px;grid-template-columns:minmax(0,1fr) minmax(310px,1fr)}.conversation{padding:22px}.controls button{font-size:12px;padding:10px}.viewport{margin-top:0;height:320px}}@media(max-width:700px){.shell{padding:0 18px}.topbar{height:77px}.brand{font-size:19px}.brand small{font-size:7px}.account{gap:4px}.account span{display:none}.demo-layout{grid-template-columns:1fr;padding-top:28px;gap:25px}h1{font-size:37px}.viewport{height:330px;margin-top:-25px}.stage-heading{pointer-events:none}.status-row{margin-top:8px}.privacy{margin-bottom:0}.conversation{min-height:570px;max-height:none}.messages{min-height:200px;max-height:360px}.footer{gap:9px;letter-spacing:0;font-size:8px}.login-card{padding:28px}}@media(prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}