:root{--ink:#243b3c;--muted:#81908a;--green:#17634f;--line:#e3e7df;--paper:#fbfcf8;--soft:#f0f3eb;--gold:#d9b86e;--font:"Segoe UI","Microsoft YaHei",sans-serif}*{box-sizing:border-box}body{margin:0;color:var(--ink);font:13px var(--font);background:var(--paper)}button,input,textarea,select{font:inherit}button,a,select{touch-action:manipulation}button{cursor:pointer;color:inherit;background:none;border:0}button:disabled{cursor:wait;opacity:.45}button:hover{color:var(--green)}a{color:var(--green);text-decoration:none}button:focus-visible,a:focus-visible{outline:2px solid #318d72;outline-offset:3px}input:focus,textarea:focus,select:focus{outline-color:#7eb29b}.topbar{height:78px;padding:0 29px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);gap:24px;background:#fff}.brand{display:flex;align-items:center;gap:11px;color:var(--ink);font-size:24px;letter-spacing:-1px;font-weight:650}.brand small{display:block;font-size:10px;color:var(--muted);letter-spacing:1px;font-weight:400;margin-top:2px}.brand-mark{display:block;width:39px;height:39px;background:var(--green);color:white;border-radius:11px;padding:5px 11px;position:relative;font-size:24px}.brand-mark span{position:absolute;font-size:15px;right:3px;top:0}.topbar nav{display:flex;align-self:stretch;gap:28px}.nav{font-size:13px;color:#8a938c;position:relative;padding:0 3px}.nav.active{color:var(--green);font-weight:600}.nav.active:after{content:"";position:absolute;bottom:0;left:0;right:0;height:3px;background:var(--green)}.nav-dot{display:inline-block;width:5px;height:5px;background:#b1c3a4;border-radius:50%;vertical-align:top;margin:4px}.top-right{display:flex;gap:24px;align-items:center}.local-status{font-size:11px;color:#849086;white-space:nowrap}.local-status i,.reasoning i,.model-bottom i{display:inline-block;width:6px;height:6px;background:#57a078;border-radius:50%;margin-right:6px}.quiet{padding:9px 13px;border:1px solid var(--line);border-radius:7px;background:#fff;font-size:12px}.workspace{height:calc(100dvh - 78px);display:grid;grid-template-columns:350px minmax(400px,1fr) 251px}.conversation{padding:27px 23px 17px;border-right:1px solid var(--line);display:flex;flex-direction:column;min-height:0;background:#fff}.section-heading{display:flex;justify-content:space-between;align-items:center}.eyebrow{display:block;font-size:9px;letter-spacing:1.7px;color:#92a195;font-weight:600}h1{font-size:20px;font-weight:600;letter-spacing:-.7px;margin:9px 0 20px}.icon-button{width:29px;height:29px;padding:0;color:#7d8c81;font-size:20px;border-radius:6px}.icon-button:hover{background:var(--soft)}.input-tabs{display:flex;border-bottom:1px solid var(--line);gap:20px}.input-tabs button{padding:10px 0 12px;font-size:12px;color:#8b948c}.input-tabs .selected{color:var(--green);border-bottom:2px solid var(--green);font-weight:600}.input-tabs span{font-size:10px;margin-left:5px}#chat-pane{display:flex;flex:1;flex-direction:column;min-height:0}.chat-log{flex:1;overflow-y:auto;padding:24px 0 14px;scrollbar-width:thin;scrollbar-color:#d3dbd1 transparent}.intro-message,.message.assistant{display:flex;gap:11px;align-items:flex-start}.assistant-avatar{display:grid;place-items:center;background:#eaf1e6;color:var(--green);font-weight:700;width:26px;height:26px;border-radius:8px;flex-shrink:0;font-size:14px}.intro-message b{font-size:14px;line-height:26px;font-weight:600}.intro-message p{line-height:1.9;color:#7e8b82;font-size:12px;margin:8px 0}.subtle{color:#89948b;font-size:11px;line-height:1.8}.message{margin-bottom:24px;line-height:1.85;font-size:12px}.message-body{min-width:0;white-space:pre-wrap;overflow-wrap:anywhere}.message.user{padding:13px 15px;margin-left:26px;border-radius:12px 12px 3px 12px;background:#eef3e9}.message .message-label{font-size:9px;color:#91a091;letter-spacing:1px;margin-bottom:5px}.message img{max-width:180px;max-height:120px;object-fit:contain;background:white;border-radius:6px;margin:9px 4px 0 0;border:1px solid var(--line)}.message .assumption{font-size:10px;color:#889180;border-left:2px solid #d7c48f;padding-left:8px;margin-top:9px}.version-chip{display:block;margin-top:9px;font-size:10px;padding:5px 9px;border:1px solid #cddccb;border-radius:5px;background:#f5f8f0}.composer{border:1px solid #d9e1d4;border-radius:11px;background:#fcfdf9;box-shadow:0 3px 10px #324c2e04;padding:12px 12px 8px}.composer:focus-within{border-color:#7da58a}.composer textarea{resize:vertical;max-height:180px;min-height:67px;width:100%;border:0;background:none;outline:none;font-size:12px;color:var(--ink);line-height:1.8}.composer textarea::placeholder{color:#a2aaa0}.composer-actions{display:flex;justify-content:space-between;align-items:center}.composer-actions>div{display:flex;align-items:center}.attachment-hint{font-size:9px;color:#9da69a;margin-left:6px}.send-button{border-radius:8px;background:var(--green);color:white;font-size:22px;width:32px;height:32px}.send-button:hover{color:white;background:#214f40}.reasoning{display:flex;justify-content:space-between;align-items:center;margin:13px 2px 0;font-size:10px;color:#7c8a7e}.reasoning i{width:5px;height:5px}.reasoning label{display:flex;gap:5px;align-items:center;color:#9ba493}.reasoning select{font-size:10px;border:0;background:#f0f3eb;border-radius:4px;padding:4px 6px;color:#45624e}.composer-footnote{text-align:center;font-size:9px;color:#b0b6ab;margin:10px 0 0}.attachments{display:flex;gap:6px;flex-wrap:wrap}.attachment{position:relative;margin-bottom:6px}.attachment img{width:53px;height:43px;object-fit:cover;border:1px solid var(--line);border-radius:5px}.attachment button{position:absolute;right:-4px;top:-5px;font-size:11px;border-radius:50%;background:#3f5e4b;color:white;width:17px;height:17px}.progress{display:flex;gap:10px;align-items:center;background:#f1f6ec;padding:10px;border-radius:8px;margin-bottom:12px}.progress b{font-size:11px;font-weight:500}.progress small{display:block;font-size:9px;color:#7c8d76;margin-top:4px}.spinner{border:2px solid #cfddc7;border-top-color:var(--green);border-radius:50%;width:15px;height:15px;animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}[hidden]{display:none!important}.model-area{display:flex;flex-direction:column;min-height:0;min-width:0;background:#f4f6ef}.model-header{height:95px;display:flex;align-items:center;justify-content:space-between;padding:20px 27px 12px}.model-header h2{font-size:18px;font-weight:500;margin:7px 0}.model-tags{display:flex;gap:6px;align-items:center;font-size:9px;color:#879581}.model-tags span{padding:5px 7px;border:1px solid #dee6d7;border-radius:4px}.model-tags #validation-badge{color:#4a795d;background:#eaf1e2}.viewer-toolbar{display:flex;align-items:center;gap:8px;flex-wrap:wrap;padding:0 25px 14px;min-height:46px}.segmented{display:flex;gap:1px;border:1px solid #dce4d4;padding:3px;border-radius:6px;background:#eaf0e2}.segmented button{font-size:10px;padding:5px 8px;border-radius:4px;color:#8a9680}.segmented .selected{background:#fff;color:var(--green);box-shadow:0 1px 3px #24452b0a}.tool-button{font-size:10px;color:#7f8d79;padding:7px 6px;border-radius:5px}.tool-button.active{background:#e0eadd;color:#256146}#viewer-wrap{position:relative;flex:1;min-height:180px;overflow:hidden;background:radial-gradient(ellipse at 50% 55%,#fafbf6 0%,#f0f4e9 100%)}#viewport{width:100%;height:100%;display:block;touch-action:none}#viewer-empty{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;flex-direction:column;pointer-events:none;padding:20px;text-align:center}.wire-cube{width:100px;height:100px;display:grid;place-items:center;transform:rotate(-9deg);font-size:90px;color:#9eb497;line-height:1;margin-bottom:35px;text-shadow:2px 5px #dce6d4}.wire-cube span{font-family:Georgia,serif;font-weight:100}#viewer-empty h2{font-size:21px;font-weight:400;color:#5c735d;letter-spacing:.4px;margin:13px 0}#viewer-empty p{font-size:11px;color:#9da894}.starter-prompts{display:flex;gap:8px;flex-wrap:wrap;justify-content:center;margin-top:25px;pointer-events:auto}.starter-prompts button{border:1px solid #dce5d4;background:#fafcf5b8;border-radius:6px;padding:9px 12px;font-size:10px;color:#7e9277}.viewport-caption{position:absolute;bottom:20px;left:25px;display:flex;align-items:center;gap:16px;pointer-events:none;font-size:9px;color:#a4ad9c}.axis-key{display:flex;gap:6px}.axis-key i{font-style:normal;font-size:10px}.axis-key i:nth-child(1){color:#b9806e}.axis-key i:nth-child(2){color:#8aa278}.axis-key i:nth-child(3){color:#6e99b0}.measure-bar{min-height:53px;display:flex;align-items:center;gap:11px;flex-wrap:wrap;border-top:1px solid #e2e8da;background:#f6f8f1;padding:10px 24px;font-size:10px}.measure-bar .measure-label{font-size:11px;color:#647d61;margin-right:1px}.measure-bar button{color:#83927c;padding:6px 8px;border:1px solid transparent;border-radius:5px}.measure-bar button.active{background:#e1ebd8;color:var(--green);border-color:#ccdabb}.measure-bar output{color:#375b44;font-size:11px}.measure-bar small{font-size:9px;color:#a1aa98;margin-left:auto}.model-bottom{min-height:32px;display:flex;justify-content:space-between;padding:8px 25px;border-top:1px solid #e4e9dd;color:#a2ab99;font-size:9px}.model-bottom i{width:5px;height:5px}.inspector{padding:28px 20px 20px;border-left:1px solid var(--line);background:#fbfcf8;overflow-y:auto;scrollbar-width:thin}.inspector-title{display:flex;justify-content:space-between;align-items:center;margin-bottom:25px}.inspector h3{font-size:14px;font-weight:600;margin:0}.inspector-title>span{color:#aab4a1}.field-label{display:block;color:#92a08b;font-size:10px;margin-bottom:8px}.version-row{display:flex;gap:7px}.version-row select{width:100%;min-width:0;background:#fff;border:1px solid #dfe6d8;border-radius:5px;font-size:10px;color:#6d8165;padding:8px}.version-row button{border:1px solid #dfe6d8;background:#fff;border-radius:5px;width:30px;flex-shrink:0}.inspector-section{padding:21px 0 15px;border-bottom:1px solid var(--line)}.inspector h4{font-size:11px;font-weight:500;margin:0 0 13px}.inspector h4 span{float:right;font-size:9px;color:#a0aa97}.part-row{display:flex;align-items:center;gap:7px;padding:7px 0;font-size:10px}.part-row input{accent-color:var(--green)}.part-row .swatch{width:9px;height:9px;border-radius:2px;flex-shrink:0}.part-row .size{font-size:8px;color:#98a28e;margin-left:auto}.parameter-row{display:flex;justify-content:space-between;gap:7px;align-items:center;font-size:10px;padding:6px 0;color:#89967f}.parameter-row code{font-family:var(--font);word-break:break-all}.parameter-row span{color:#4e6c48;background:#f0f4e9;border-radius:3px;padding:3px 7px;text-align:right;max-width:115px}.small-list p{font-size:10px;color:#8a9781;line-height:1.8;margin:6px 0}.validation-item{display:flex;gap:7px;align-items:flex-start;font-size:10px;line-height:1.9;color:#6c8560}.validation-item.warning{color:#ac8653}.download-section{margin-top:23px}.primary{display:block;background:var(--green);color:#fff;text-align:center;padding:11px 13px;border-radius:6px;font-size:11px;cursor:pointer}.primary:hover{background:#1d513f;color:#fff}.disabled{opacity:.4;pointer-events:none}.download-list{display:flex;gap:5px;flex-wrap:wrap;margin-top:10px}.download-list a{font-size:9px;padding:5px 7px;border:1px solid #dce4d4;border-radius:4px;color:#78906d;max-width:100%;overflow:hidden;text-overflow:ellipsis}.download-section p{font-size:9px;color:#a8b09f;line-height:1.9}.viewer-error{position:absolute;top:15px;left:20px;right:20px;padding:13px;background:#fff1dd;border:1px solid #e8c98a;border-radius:7px;font-size:12px;color:#967b4b}#dimension-label{position:absolute;pointer-events:none;display:none;padding:5px 9px;background:#fffdf4;border:1px solid #ceaa58;color:#78602f;font-size:11px;border-radius:5px;transform:translate(-50%,-110%)}.sketch-heading{margin:22px 0 17px;font-size:13px}.sketch-heading p{font-size:11px;color:#8d9986}.sketch-tools{display:flex;gap:8px;margin-bottom:12px}.sketch-tools button{width:32px;height:32px;border:1px solid var(--line);border-radius:5px;font-size:17px}.sketch-tools .selected{background:#e9f0df;border-color:#95b189;color:var(--green)}#sketch-note{width:100%;font-size:10px;border:1px solid var(--line);padding:9px;border-radius:5px;margin-bottom:10px}.sketch-wrap{border:1px solid var(--line);border-radius:7px;overflow:hidden;background:#fff}.sketch-wrap canvas{width:100%;height:auto;display:block;touch-action:none;cursor:crosshair}.sketch-actions{display:flex;justify-content:space-between;font-size:10px;margin:12px 0 18px}.full{width:100%}dialog{border:1px solid #dce5d5;border-radius:15px;background:#fbfcf8;color:var(--ink);padding:30px;max-width:min(1100px,92vw);width:1100px;max-height:88vh;box-shadow:0 25px 100px #1c3b3033}dialog::backdrop{background:#22392a55;backdrop-filter:blur(4px)}.dialog-header{display:flex;justify-content:space-between;gap:15px;margin-bottom:23px}.dialog-header h2{font-size:24px;font-weight:500;letter-spacing:-.6px;margin:8px 0}.dialog-header p{font-size:12px;color:#8a9881}.close-dialog{font-size:26px;color:#91a18a;align-self:flex-start}.example-cards{display:grid;grid-template-columns:repeat(4,1fr);gap:15px}.example-card{border:1px solid #dfe7d6;border-radius:10px;overflow:hidden;background:white;text-align:left;padding:0;transition:transform .15s}.example-card:hover{transform:translateY(-3px)}.example-card img{width:100%;height:150px;object-fit:cover;background:#f0f4e8;display:block}.example-card .card-art{height:150px;display:grid;place-items:center;font-size:52px;color:#93a787;background:#eef3e6}.example-card h3{font-size:13px;margin:15px 15px 8px}.example-card p{font-size:10px;color:#8d9d82;margin:0 15px 17px}.comparison-heading{margin-top:30px;font-size:16px;font-weight:500}.table-wrap{overflow-x:auto}table{border-collapse:collapse;width:100%;font-size:11px}th,td{text-align:left;padding:11px;border-bottom:1px solid #e2e9d9;white-space:nowrap}th{color:#90a084;font-size:10px;font-weight:500;background:#f0f5e8}td.pass{color:#39794e}td.fail{color:#b57a4e}.report-link{display:flex;gap:20px;margin-top:20px;font-size:11px}#case-detail{border:1px solid #dce6d2;border-radius:9px;padding:22px;margin-top:20px;background:white}#case-detail h3{font-size:18px;margin:0 0 15px}#case-detail p,#case-detail li{font-size:12px;line-height:1.9;color:#7a8b6d}#case-detail .case-input{white-space:pre-wrap;background:#f4f7ef;padding:13px;border-radius:5px;color:#59754f}.case-images{display:flex;gap:10px}.case-images img{max-width:45%;max-height:200px;object-fit:contain;border:1px solid var(--line)}.case-actions{display:flex;align-items:center;gap:20px;margin-top:15px}.history-row{display:flex;width:100%;justify-content:space-between;padding:17px 10px;border-bottom:1px solid var(--line);font-size:13px}.history-row small{font-size:10px;color:#91a185}#history-dialog{width:530px}#toast{position:fixed;bottom:25px;left:50%;transform:translate(-50%,20px);background:#294d3e;color:#fff;padding:12px 22px;border-radius:8px;font-size:12px;opacity:0;pointer-events:none;transition:.2s;z-index:1000;max-width:85vw}#toast.show{opacity:1;transform:translate(-50%,0)}
@media(min-width:1550px){.workspace{grid-template-columns:390px minmax(500px,1fr) 285px}.conversation{padding:30px}.inspector{padding:30px 25px}}@media(max-width:1150px){.workspace{grid-template-columns:310px minmax(350px,1fr) 215px}.conversation{padding:22px 17px}.inspector{padding:24px 15px}.topbar{padding:0 20px}.local-status{display:none}.viewer-toolbar{gap:2px;padding-left:15px;padding-right:15px}.tool-button{font-size:9px}.measure-bar{padding:9px 15px;gap:4px}.measure-bar small{display:none}.model-tags span{display:none}}@media(max-width:900px){.workspace{grid-template-columns:310px minmax(320px,1fr)}.inspector{display:none}.topbar{gap:10px}.brand small{display:none}.topbar nav{gap:12px}.example-cards{grid-template-columns:repeat(2,1fr)}}@media(max-width:660px){.topbar{height:65px;padding:0 14px}.brand{font-size:20px}.brand-mark{width:32px;height:32px;font-size:20px;padding:3px 8px}.nav{font-size:11px}.quiet{font-size:10px;padding:7px}.workspace{height:auto;display:flex;flex-direction:column}.conversation{order:2;height:600px;border-right:0;border-top:1px solid var(--line);padding:20px}.model-area{height:530px}.model-header{height:75px;padding:15px 20px}.model-header h2{font-size:16px}.viewer-toolbar{padding:0 15px 10px}.model-bottom{font-size:8px;padding:8px 15px}#viewer-empty h2{font-size:18px}.wire-cube{margin-bottom:20px;font-size:60px;height:60px}.starter-prompts{margin-top:12px}.starter-prompts button{font-size:9px;padding:7px}.top-right{gap:0}.comparison-heading{font-size:14px}dialog{padding:20px}.example-card img,.example-card .card-art{height:120px}.dialog-header h2{font-size:21px}}

#measure-picker{width:100%;font-size:9px;color:#718668}#measure-picker summary{cursor:pointer;width:max-content}#measure-picker>div{display:flex;gap:8px;margin:8px 0 2px}#measure-picker select{width:48%;min-width:0;padding:6px;border:1px solid #d6e0cc;border-radius:4px;background:#fff;font-size:10px;color:#4e6e43}.effort-results{display:flex;gap:8px;flex-wrap:wrap;margin-top:15px}.effort-results button{padding:7px 12px;border:1px solid #cddcc1;border-radius:5px;background:#f4f8ee;font-size:11px}

@media(max-width:900px){.workspace{height:auto}.conversation,.model-area{height:calc(100dvh - 78px)}.inspector{display:block;grid-column:1/-1;border-top:1px solid var(--line);overflow:visible}.inspector-section{display:inline-block;width:47%;margin-right:2%;vertical-align:top}.download-section{max-width:400px}}@media(max-width:660px){.conversation{height:600px}.model-area{height:530px}.inspector{order:3;padding:25px}.inspector-section{width:100%;margin:0}}

/* Measurement tools remain visible above the canvas at every breakpoint. */
.measure-entry{border:1px solid #b6cdb2!important;background:#e5efdc;color:#276446;font-weight:600;margin-left:auto}
.measure-entry[aria-pressed=true]{background:#21664e;color:white}
.measure-bar{display:block;flex-shrink:0;border-top:1px solid #d5e0ce;border-bottom:1px solid #d5e0ce;padding:11px 23px;background:#f8fbf3}
.measurement-actions{display:flex;align-items:center;gap:5px;flex-wrap:wrap}
.measure-bar .measure-label{font-weight:600;color:#33664c;margin-right:6px;font-size:12px}
.measure-bar .measure-label small{display:inline;margin:0;color:#7b9374;font-size:9px}
.measurement-actions button{font-size:11px;padding:7px 10px;border:1px solid #d9e4cf;background:white;color:#56744a}
.measurement-actions button.active{background:#22664d;color:white;border-color:#22664d}
.measurement-actions #clear-measure{margin-left:auto;border:0;background:none;color:#83917b}
#measure-instructions{font-size:10px;line-height:1.5;color:#7a8b70;margin:8px 0 0}
#measure-readout{margin-top:10px;padding:10px 12px;background:#eef4e7;border-radius:6px}
.measure-bar output{display:block;font-size:15px;line-height:1.5;color:#285f43;font-weight:600}
.measure-selections{display:flex;gap:5px;flex-wrap:wrap;margin-top:5px;font-size:9px;color:#6d8061}
.measure-selections span{min-width:42%;overflow-wrap:anywhere}
#measure-delta{color:#6b7e60;font-size:10px;margin-top:4px}
.measure-options{display:flex;align-items:flex-start;gap:15px;flex-wrap:wrap;font-size:10px;margin-top:7px}
#measure-snap-label{font-size:10px;display:flex;align-items:center;white-space:nowrap;color:#54754b}
#measure-snap{accent-color:#246950;margin-right:6px}
#measure-picker{flex:1;width:auto;min-width:170px}
#measure-picker>div{display:flex;gap:10px}
#measure-picker label{flex:1;min-width:0;display:flex;align-items:center;gap:5px;font-size:10px}
#measure-picker select{width:100%;font-size:10px}
#measure-hover:empty{display:block}
#measure-hover{font-size:9px;color:#4f7f84;padding-top:5px;height:20px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
#viewport{user-select:none}
@media(max-width:1150px){.measure-bar{padding:9px 15px}.measurement-actions button{padding:7px 8px;font-size:10px}}
@media(max-width:660px){.model-area{height:720px}.measurement-actions{gap:4px}.measurement-actions button{padding:7px 8px}.measure-selections span{min-width:100%}.measure-entry{margin-left:0}}
.send-button.is-loading{position:relative;color:transparent;opacity:1}
.send-button.is-loading::after{content:"";position:absolute;inset:7px;border:2px solid rgba(255,255,255,.35);border-top-color:#fff;border-radius:50%;animation:spin .8s linear infinite}
@media(prefers-reduced-motion:reduce){.send-button.is-loading::after{animation-duration:2s}}