:root{color-scheme:dark;--bg:#0d171b;--panel:#142126;--line:#2b3a40;--text:#edf1ee;--muted:#9cacae;--accent:#c9f27b;--accent-ink:#17240d;--radius:12px;font-family:Inter,"PingFang TC","Noto Sans TC",system-ui,sans-serif;font-size:16px}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text)}button,input,select,textarea{font:inherit}button,a,input,select,textarea{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button:disabled{opacity:.45;cursor:not-allowed}button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{outline:2px solid var(--accent);outline-offset:3px}button{transition:background .15s,transform .15s}button:hover:not(:disabled){filter:brightness(1.12)}[hidden]{display:none!important}.topbar{height:88px;padding:0 36px;border-bottom:1px solid var(--line);display:flex;align-items:center;gap:34px}.brand{text-decoration:none;color:var(--text);display:flex;align-items:center;gap:13px;font-size:23px;font-weight:720;letter-spacing:2px}.brand-mark{width:38px;height:38px;display:grid;place-items:center;color:var(--accent);border:1px solid #546644;border-radius:9px;font-size:31px;line-height:1}.brand small{display:block;font-size:12px;letter-spacing:2px;color:var(--muted);margin-top:2px}.header-note{font-size:14px;color:var(--muted);border-left:1px solid var(--line);padding-left:28px}.header-actions{margin-left:auto;display:flex;gap:17px;align-items:center}.version-pill{font-size:12px;letter-spacing:1.2px;border:1px solid #43533a;color:var(--accent);padding:6px 9px;border-radius:5px}.button{border:0;border-radius:7px;padding:11px 15px;font-size:14px;line-height:1.5;font-weight:560;white-space:nowrap;display:inline-flex;justify-content:center;align-items:center;gap:13px;min-height:42px}.primary{background:var(--accent);color:var(--accent-ink)}.quiet{background:transparent;color:var(--muted)}.outlined{border:1px solid #54605a;color:var(--text);background:transparent}.full{width:100%;margin-top:10px}.workspace{display:grid;grid-template-columns:322px minmax(0,1fr);max-width:1800px;margin:auto}.sidebar{border-right:1px solid var(--line);padding:31px 27px 30px;min-height:calc(100vh - 88px)}.eyebrow{font-family:ui-monospace,SFMono-Regular,monospace;font-size:12px;letter-spacing:1.5px;color:var(--muted)}h1{font-size:27px;line-height:1.55;font-weight:550;letter-spacing:1px;margin:14px 0 9px}.section-heading p{font-size:14px;color:var(--muted);line-height:1.8;margin:0 0 28px}.field-label{display:flex;justify-content:space-between;align-items:center;gap:5px;font-size:14px;margin-bottom:10px}.field-label span{font-size:12px;color:var(--muted)}.field-group{margin-top:22px}input[type=number],input[type=text],select,textarea{color:var(--text);background:#101b20;border:1px solid #38484b;border-radius:7px;padding:11px;width:100%;font-size:14px;line-height:1.5}textarea{resize:vertical;min-height:88px}textarea::placeholder{color:#7e9295}select{padding-right:22px;cursor:pointer}.dimension-fields{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}.dimension-fields label{position:relative}.dimension-fields input{padding:10px;text-align:center;font-family:ui-monospace,monospace;font-size:16px}.dimension-fields span{font-size:12px;color:var(--muted);display:block;text-align:center;margin-top:6px}.local-note{font-size:12px;color:var(--muted);line-height:1.8;margin:16px 0 7px}.main-stage{min-width:0;padding:30px 30px 40px}.stage-toolbar{display:flex;align-items:center;justify-content:space-between;gap:15px}.project-title{display:flex;align-items:center;gap:12px;margin-top:9px}h2{font-size:22px;font-weight:560;letter-spacing:.7px;margin:0}.badge{font-size:12px;border:1px solid var(--line);color:var(--muted);border-radius:4px;padding:4px 7px}.stage-actions{display:flex;gap:10px}.view-tabs{display:flex;align-items:center;margin-top:27px;margin-bottom:14px;gap:5px}.view-tab{border:0;background:transparent;color:var(--muted);padding:9px 15px;font-size:14px;border-radius:6px}.view-tab.active{background:#2a3836;color:var(--accent)}.view-hint{margin-left:auto;font-size:12px;color:var(--muted)}.viewport{height:450px;min-height:300px;position:relative;background:#d8e1df;border:1px solid #4d605a;border-radius:12px;overflow:hidden}.viewport>canvas,#layer-panel{width:100%;height:100%;display:block}#layer-canvas{width:100%;height:100%;display:block;touch-action:none}#layer-panel{position:absolute;inset:0;background:#e6ebe5}.viewport-label{position:absolute;left:19px;top:17px;font-size:12px;color:#344d44;display:flex;gap:8px;align-items:center;pointer-events:none}.mini-square{width:6px;height:6px;background:#456b4f}.viewport-controls{position:absolute;right:13px;top:13px;display:flex;gap:7px}.icon-button{border:1px solid var(--line);border-radius:6px;background:#18282b;color:var(--text);min-width:34px;min-height:34px;font-size:21px;line-height:1;display:inline-grid;place-items:center}.viewport-controls .icon-button{color:#365544;background:#eff4e9b8;border:1px solid #899b896b}.viewport-controls .icon-button.active{background:#c9e5b5}.compass{position:absolute;left:18px;bottom:17px;display:flex;align-items:center;gap:9px;color:#45604d;font-size:12px;pointer-events:none}.compass b{font-size:26px}.hover-info{position:absolute;right:15px;bottom:17px;color:#45604d;font-size:12px;max-width:75%;background:#e8efe4d9;border-radius:4px;padding:6px 9px;pointer-events:none}.layer-bar{display:flex;align-items:center;gap:13px;padding:17px 2px;border-bottom:1px solid var(--line)}.layer-label{min-width:105px}.layer-label strong{display:block;margin-top:6px;font-size:14px;font-weight:500}.layer-label .eyebrow{font-size:12px}.layer-bar input[type=range]{flex:1;min-width:40px;accent-color:var(--accent);height:22px;cursor:pointer}.checkbox-label{font-size:12px;display:flex;align-items:center;gap:5px;white-space:nowrap;color:var(--muted)}input[type=checkbox]{accent-color:var(--accent)}.stats-row{display:grid;grid-template-columns:1fr 1.2fr .8fr 1.2fr;padding:22px 0 23px;border-bottom:1px solid var(--line);gap:15px}.stats-row>div:not(:first-child){border-left:1px solid var(--line);padding-left:22px}.stats-row span{display:block;font-size:12px;color:var(--muted);margin-bottom:8px}.stats-row strong{font-family:ui-monospace,SFMono-Regular,monospace;font-size:20px;font-weight:450;white-space:nowrap}.materials-heading{display:flex;align-items:center;justify-content:space-between;margin:26px 0 20px}.materials-heading h2{font-size:18px;margin-top:8px}.material-actions{display:flex;align-items:center;gap:10px;font-size:12px;color:var(--accent)}.materials-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}.material-card{display:flex;align-items:center;gap:10px;background:#152429;border:1px solid var(--line);border-radius:8px;padding:12px;min-width:0}.swatch{width:27px;height:27px;flex-shrink:0;border-radius:3px;border:1px solid #ffffff35;box-shadow:inset 0 -7px #0002,inset -5px 0 #0001}.material-name{font-size:13px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.material-detail{font-size:12px;color:var(--muted);margin-top:4px}.material-count{margin-left:auto;font-family:ui-monospace,monospace;font-size:14px}.model-notes{color:var(--muted);font-size:13px;line-height:1.85;margin-top:20px}.toast{position:fixed;bottom:24px;left:50%;transform:translate(-50%,20px);background:var(--accent);color:var(--accent-ink);padding:13px 20px;border-radius:8px;z-index:50;opacity:0;transition:opacity .2s,transform .2s;pointer-events:none;box-shadow:0 8px 40px #0005;font-size:14px;max-width:90vw}.toast.show{opacity:1;transform:translate(-50%,0)}dialog{background:#142126;color:var(--text);border:1px solid #455651;border-radius:15px;padding:27px;max-width:700px;width:calc(100% - 32px);max-height:90dvh;box-shadow:0 20px 100px #0008}dialog::backdrop{background:#081014b9;backdrop-filter:blur(5px)}.modal-heading{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}.modal-heading h2{margin-top:7px}.modal-copy{font-size:14px;color:var(--muted);line-height:1.85}.code-input{font-family:ui-monospace,monospace;font-size:12px!important;min-height:260px;line-height:1.7!important}.modal-footer{display:flex;gap:10px;justify-content:flex-end;flex-wrap:wrap;margin-top:17px}.error-message{background:#512b29;color:#ffd5c6;padding:12px;border-radius:6px;font-size:14px;line-height:1.7;white-space:pre-line;margin:12px 0}.help-step{display:flex;gap:14px;line-height:1.8;font-size:14px;margin:18px 0}.help-step b{color:var(--accent)}.help-step p{margin:3px 0;color:var(--muted)}.help-step a{color:var(--accent)}.prompt-preview{height:280px;min-height:160px}.export-info{display:grid;grid-template-columns:1fr 1fr;gap:14px;padding:18px;background:#101b20;border-radius:8px;font-size:14px}.export-info span{color:var(--muted);display:block;font-size:12px;margin-bottom:6px}.note-box{border-left:2px solid var(--accent);padding:0 0 0 13px;font-size:13px;line-height:1.8;color:var(--muted);margin-top:18px}.link-button{border:0;background:none;color:var(--accent);padding:0;font-size:14px;text-decoration:underline}.layer-legend{font-size:12px;color:var(--muted)}@media(min-width:1450px){.workspace{grid-template-columns:350px minmax(0,1fr)}.main-stage{padding:35px 42px}.sidebar{padding:35px}.viewport{height:510px}.materials-grid{grid-template-columns:repeat(4,minmax(0,1fr))}}@media(max-width:1050px){.topbar{padding:0 22px}.header-note{display:none}.workspace{grid-template-columns:285px minmax(0,1fr)}.sidebar{padding:24px 20px}.main-stage{padding:25px 20px}.stage-toolbar{align-items:flex-start}.stage-actions{flex-direction:column;gap:3px}.stage-actions .quiet{padding-top:0}.materials-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.stats-row strong{font-size:16px}.stats-row>div:not(:first-child){padding-left:10px}.layer-bar{gap:8px;flex-wrap:wrap}.layer-bar .checkbox-label{margin-left:auto}.view-hint{display:none}.viewport{height:410px}.stats-row{gap:8px}}@media(max-width:760px){.topbar{height:74px;padding:0 17px}.brand{font-size:21px}.version-pill{display:none}.header-actions{gap:4px}.workspace{display:flex;flex-direction:column}.sidebar{order:1;border-right:0;border-top:1px solid var(--line);min-height:0;padding:26px 22px}.section-heading h1{font-size:24px;line-height:1.4}.section-heading h1 br{display:none}.section-heading p{margin-bottom:20px}.main-stage{padding:24px 15px}.stage-toolbar{gap:8px}.stage-actions .button{font-size:12px;padding:9px 10px}.stage-actions .quiet{font-size:12px}.project-title{gap:6px;flex-wrap:wrap}.project-title h2{font-size:21px}.viewport{height:360px;min-height:250px}.stats-row{grid-template-columns:1fr 1fr;row-gap:20px}.stats-row>div:nth-child(3){border-left:0;padding-left:0}.stats-row>div:not(:first-child){padding-left:15px}.materials-grid{gap:8px}.material-card{padding:10px;gap:8px}.material-name{font-size:12px}.layer-label{min-width:87px}.layer-bar .icon-button{min-width:29px}.hover-info{max-width:72%;font-size:12px;bottom:12px}.compass{bottom:11px;font-size:12px}.layer-bar #mark-layer{font-size:12px;padding:4px 7px}dialog{padding:20px}.materials-heading{gap:10px}.materials-heading .eyebrow{font-size:12px}.material-actions{gap:0}.material-actions .button{font-size:12px;padding:8px}.eyebrow{font-size:12px}}@media(prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}
.edit-toolbar{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;border-bottom:1px solid var(--line);padding:4px 0;gap:4px}.edit-toolbar>div{display:flex;gap:2px;flex-wrap:wrap}.edit-toolbar .button{font-size:12px;min-height:34px;padding:7px 9px}.material-id{font-family:ui-monospace,monospace;font-size:12px;border:1px solid #536755;padding:1px 4px;border-radius:3px;color:var(--accent)}.example-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}.example-choice{background:#1b302d;border:1px solid #516748;color:var(--text);border-radius:10px;text-align:left;padding:23px;display:flex;flex-direction:column;gap:13px}.example-choice span{font-size:12px;color:var(--accent)}.example-choice strong{font-size:23px;font-weight:500}.example-choice small{font-size:13px;line-height:1.7;color:var(--muted)}.complete{color:var(--accent)}@media(max-width:500px){.example-grid{grid-template-columns:1fr}.example-choice{padding:16px}.edit-toolbar .button{font-size:12px;padding:6px 7px}}

.material-name{font-size:14px}.field-label{font-size:14px}.edit-toolbar .button{font-size:14px}@media(max-width:760px){.edit-toolbar .button{font-size:12px}.material-name{font-size:13px}}.save-status{font-size:12px;color:var(--muted);margin:12px 0 0;text-align:center;min-height:1.5em}
.camera-angles{display:flex;align-items:center;gap:2px;margin-left:auto;flex-wrap:wrap;justify-content:flex-end}.angle-button{border:1px solid transparent;background:transparent;color:var(--muted);border-radius:6px;padding:6px 9px;font-size:13px;min-height:32px}.angle-button.active{border-color:#4f6547;color:var(--accent);background:#1b2b28}.textures-label{margin-left:10px;cursor:pointer}.camera-angles:not([hidden])~.view-hint{display:none}
.busy{position:absolute;inset:0;display:grid;place-items:center;background:#0d171b73;backdrop-filter:blur(2px);z-index:3}.busy-card{display:flex;align-items:center;gap:12px;background:#142126f2;border:1px solid #455651;border-radius:10px;padding:10px 12px 10px 16px;font-size:14px;box-shadow:0 10px 40px #0006;max-width:calc(100% - 32px)}.busy-card .button{min-height:32px;padding:5px 10px}.spinner{width:18px;height:18px;flex-shrink:0;border-radius:50%;border:2px solid #c9f27b40;border-top-color:var(--accent);animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}
.quality-panel{border-bottom:1px solid var(--line);padding:18px 0 20px}.quality-heading{display:flex;align-items:baseline;gap:14px;flex-wrap:wrap}.quality-heading strong{font-size:14px;font-weight:500}.quality-notes{margin:10px 0 0;padding-left:20px;font-size:13px;line-height:1.8;color:var(--muted)}.quality-panel.has-warnings .quality-notes{color:#f3d9a4}.quality-panel.has-warnings .quality-notes li::marker{color:#f0b35a}
.example-grid{grid-template-columns:repeat(auto-fit,minmax(180px,1fr))}.example-choice strong{font-size:20px}
@media(max-width:1050px){.camera-angles{margin-left:0;width:100%;justify-content:flex-start}.view-tabs{flex-wrap:wrap}}
@media(max-width:760px){.angle-button{padding:5px 7px;font-size:12px}.textures-label{margin-left:4px}.busy-card{font-size:13px}}
@media(prefers-reduced-motion:reduce){.spinner{animation-duration:2.4s}}

fieldset.field-group{border:0;padding:0;margin-inline:0;min-width:0}.field-group.first{margin-top:0}legend.field-label{padding:0;width:100%}
.type-options{display:grid;grid-template-columns:1fr 1fr;gap:8px}.type-option{position:relative;cursor:pointer}.type-option input{position:absolute;opacity:0;pointer-events:none}.type-option>span{display:flex;flex-direction:column;gap:4px;height:100%;border:1px solid #38484b;border-radius:9px;background:#101b20;padding:12px 13px;transition:border-color .15s,background .15s}.type-option strong{font-size:15px;font-weight:600}.type-option small{font-size:12px;color:var(--muted);line-height:1.5}.type-option:hover>span{border-color:#5a6d62}.type-option input:checked+span{border-color:var(--accent);background:#1d2e26}.type-option input:checked+span strong{color:var(--accent)}.type-option input:focus-visible+span{outline:2px solid var(--accent);outline-offset:3px}
.detail-name{font-size:13px;font-weight:600;color:var(--accent)}.detail-range{width:100%;accent-color:var(--accent);height:24px;margin:2px 0 0;cursor:pointer}.detail-scale{display:flex;justify-content:space-between;margin:0 -4px}.detail-scale button{border:0;background:none;color:var(--muted);font-size:12px;padding:4px;border-radius:5px;cursor:pointer}.detail-scale button.active{color:var(--accent);font-weight:600}.detail-summary{font-size:13px;line-height:1.7;color:var(--muted);margin:8px 0 0;background:#111d21;border:1px solid var(--line);border-radius:8px;padding:10px 12px}.detail-hint{font-size:12px;line-height:1.7;color:#f3d9a4;margin:8px 0 0}
.steps-list{margin:0 0 14px;padding-left:22px;font-size:14px;line-height:1.9;color:var(--muted)}.steps-list strong{color:var(--text)}
.scale-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;margin-top:16px}.scale-choice{display:flex;flex-direction:column;align-items:flex-start;gap:4px;border:1px solid #516748;background:#1b302d;color:var(--text);border-radius:9px;padding:13px 14px;text-align:left}.scale-choice strong{font-size:18px;font-weight:600}.scale-choice span{font-family:ui-monospace,monospace;font-size:13px;color:var(--muted)}.scale-choice small{font-size:12px;color:#f3d9a4}
@media(max-width:500px){.scale-grid{grid-template-columns:1fr 1fr}}