:root{--bg:#e7ebee;--panel:#f7f8f9;--line:#c8d0d6;--text:#20272b;--muted:#6d787f;--accent:#087f6d;--accent-dark:#066657;--accent-soft:#dff2ee;--danger:#b23a31;--cut:#d63832;--fold:#1875d1;--perf:#aa6508;--selection:#00a68d;--shadow:0 8px 28px rgba(24,35,42,.14);font-family:"Microsoft JhengHei UI","Microsoft JhengHei",system-ui,sans-serif;color:var(--text);font-size:14px}
*{box-sizing:border-box}html,body{height:100%;margin:0;overflow:hidden;background:var(--bg)}button,input,select{font:inherit;color:inherit}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.4}.app-header{height:58px;display:flex;align-items:center;justify-content:space-between;padding:0 14px;background:#20272b;color:#fff;border-bottom:1px solid #111;gap:16px}.brand{display:flex;align-items:center;gap:10px;min-width:240px}.brand-mark{width:34px;height:34px;display:grid;place-items:center;background:#d7f26f;color:#20272b;font-weight:800;border-radius:4px}.brand strong,.brand span{display:block}.brand strong{font-size:15px}.brand span{font-size:11px;color:#b7c1c7;margin-top:2px}.top-actions{display:flex;align-items:center;gap:5px}.divider{width:1px;height:24px;background:#4a5358;margin:0 5px}.icon-button,.command-button,.tool,.primary,.secondary,.danger{border:1px solid 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var(--line)}.tab{border:0;background:#edf0f2;font-weight:700;color:var(--muted);border-bottom:2px solid transparent}.tab.active{color:var(--accent);background:#fff;border-bottom-color:var(--accent)}.panel-content{display:none;height:calc(100% - 43px);overflow-y:auto;padding:11px}.panel-content.active{display:block}.search-field{display:flex;align-items:center;gap:7px;background:#fff;border:1px solid var(--line);padding:0 9px;height:35px;border-radius:4px}.search-field:focus-within{border-color:var(--accent);box-shadow:0 0 0 2px var(--accent-soft)}.search-field svg{width:16px;color:var(--muted)}.search-field input{border:0;outline:0;width:100%;background:transparent}.category-filter{display:flex;gap:5px;overflow-x:auto;padding:9px 0 8px}.category-chip{white-space:nowrap;border:1px solid var(--line);background:#fff;border-radius:12px;padding:4px 9px;font-size:12px}.category-chip.active{background:var(--accent);border-color:var(--accent);color:#fff}.template-grid{display:grid;grid-template-columns:1fr 1fr;gap:7px}.template-card{height:112px;border:1px solid var(--line);background:#fff;border-radius:4px;padding:7px;text-align:left;position:relative;overflow:hidden}.template-card:hover,.template-card.active{border-color:var(--accent);box-shadow:0 0 0 1px var(--accent)}.template-card svg{display:block;width:100%;height:65px;background:#172025}.template-card strong,.template-card small{display:block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.template-card strong{font-size:12px;margin-top:5px}.template-card small{font-size:10px;color:var(--muted)}.section-heading,.right-heading,.modal-header{display:flex;align-items:center;justify-content:space-between}.layer-list{display:flex;flex-direction:column;gap:5px;margin-top:10px}.layer-row{display:grid;grid-template-columns:26px 18px 1fr 28px;align-items:center;gap:5px;border:1px solid var(--line);background:#fff;border-radius:4px;padding:6px}.layer-row.active{border-color:var(--accent);background:var(--accent-soft)}.layer-row input{accent-color:var(--accent)}.layer-dot{width:12px;height:12px;border-radius:50%}.layer-name{border:0;background:transparent;min-width:0}.line-legend{border-top:1px solid var(--line);margin-top:14px;padding-top:12px;display:grid;gap:8px;font-size:12px}.swatch{display:inline-block;width:24px;height:2px;margin-right:8px;vertical-align:middle}.swatch.cut{background:var(--cut)}.swatch.fold{background:var(--fold);border-top:1px dashed #fff}.swatch.perf{background:var(--perf)}.project-card{display:flex;gap:10px;padding:12px;background:#fff;border:1px solid var(--line);border-radius:4px}.project-card svg{color:var(--accent)}.project-card strong,.project-card small{display:block}.project-card small{color:var(--muted);margin-top:3px}.recent-list{margin-top:10px}.custom-library-head{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-top:14px}.custom-library-head strong,.custom-library-head small{display:block}.custom-library-head small{color:var(--muted);font-size:10px;margin-top:2px}.custom-library-head .secondary{height:32px;padding:0 8px;font-size:11px}.custom-library-actions{display:flex;align-items:center;gap:3px}.custom-library-actions .icon-button{color:var(--accent)}.custom-item{display:grid;grid-template-columns:48px minmax(0,1fr) 28px 28px;align-items:center;gap:7px;padding:7px;margin-bottom:6px;background:#fff;border:1px solid var(--line);border-radius:4px}.custom-item:hover{border-color:var(--accent)}.custom-thumb{width:48px;height:38px;background:#172025;border-radius:2px}.custom-item strong,.custom-item small{display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.custom-item strong{font-size:11px}.custom-item 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#canvasHint{opacity:1!important;color:var(--selection);font-weight:700}#cadCanvas{display:block;width:100%;height:100%;outline:0;touch-action:none;cursor:crosshair}.canvas-hint{position:absolute;top:16px;left:50%;transform:translateX(-50%);background:rgba(32,39,43,.82);color:#fff;padding:7px 12px;border-radius:4px;font-size:12px;pointer-events:none;transition:opacity .2s}.coordinates{position:absolute;left:10px;bottom:10px;background:rgba(255,255,255,.9);border:1px solid var(--line);padding:4px 7px;border-radius:3px;font:11px Consolas,monospace}.zoom-controls{position:absolute;right:10px;bottom:10px;display:flex;align-items:center;background:#fff;border:1px solid var(--line);border-radius:4px;box-shadow:var(--shadow)}.zoom-controls .icon-button:hover{background:#eef1f3}.zoom-controls span{font-size:11px;min-width:43px;text-align:center}.status-bar{display:flex;align-items:center;gap:16px;padding:0 10px;background:#20272b;color:#cad2d6;font-size:11px}.status-bar .spacer{flex:1}.toggle{display:flex;align-items:center;gap:5px}.toggle input{display:none}.toggle span{width:24px;height:13px;background:#69747a;border-radius:7px;position:relative}.toggle span:after{content:"";position:absolute;width:9px;height:9px;left:2px;top:2px;background:#fff;border-radius:50%;transition:.15s}.toggle input:checked+span{background:var(--accent)}.toggle input:checked+span:after{left:13px}.right-heading{padding:12px;border-bottom:1px solid var(--line);background:#fff;position:sticky;top:0;z-index:2}.right-heading strong,.right-heading small{display:block}.right-heading small{font-size:11px;color:var(--muted);margin-top:2px}.right-heading .icon-button:hover{background:#edf1f2}.property-section{padding:12px;border-bottom:1px solid var(--line)}.property-section h3{font-size:12px;margin:0 0 10px;text-transform:uppercase;color:#4d595f}.property-section label{display:flex;flex-direction:column;gap:4px;font-size:11px;color:var(--muted);margin-bottom:8px}.property-section input,.property-section select{height:32px;border:1px solid var(--line);border-radius:3px;background:#fff;padding:0 7px;color:var(--text);outline:0}.entity-inspector[hidden]{display:none}.entity-inspector{background:#eef8f5}.entity-inspector .inspector-apply{width:100%;height:34px;margin-top:3px;font-size:11px}.entity-inspector input[readonly]{background:#edf0f2;color:var(--muted)}.property-section input:focus,.property-section select:focus{border-color:var(--accent);box-shadow:0 0 0 2px var(--accent-soft)}.field-grid{display:grid;gap:7px}.field-grid.three{grid-template-columns:repeat(3,1fr)}.field-grid.two{grid-template-columns:1fr 1fr}.segmented{display:grid;grid-template-columns:repeat(3,1fr);border:1px solid var(--line);border-radius:4px;overflow:hidden}.segmented button{height:30px;border:0;border-right:1px solid var(--line);background:#fff;font-size:11px}.segmented button:last-child{border-right:0}.segmented 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rotateY(34deg);animation:turn 12s linear infinite}.face{position:absolute;border:2px solid var(--accent-dark);background:rgba(215,242,111,.62);backface-visibility:visible}.front,.back{width:220px;height:150px}.front{transform:translateZ(80px)}.back{transform:rotateY(180deg) translateZ(80px)}.right,.left{width:160px;height:150px;left:30px}.right{transform:rotateY(90deg) translateZ(190px)}.left{transform:rotateY(-90deg) translateZ(30px)}.top,.bottom{width:220px;height:160px;top:-5px}.top{transform:rotateX(90deg) translateZ(75px)}.bottom{transform:rotateX(-90deg) translateZ(75px)}@keyframes turn{to{transform:rotateX(-22deg) rotateY(394deg)}}.preflight-body{padding:16px;max-height:65vh;overflow:auto;background:#f3f5f6}.preflight-summary{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin-bottom:12px}.preflight-metric{padding:10px;background:#fff;border:1px solid var(--line);border-radius:4px}.preflight-metric strong,.preflight-metric small{display:block}.preflight-metric strong{font-size:18px;color:var(--accent)}.preflight-metric small{font-size:10px;color:var(--muted);margin-top:3px}.preflight-list{display:grid;gap:7px}.preflight-item{display:grid;grid-template-columns:72px 1fr;gap:10px;align-items:start;padding:10px;background:#fff;border:1px solid var(--line);border-left-width:4px;border-radius:4px}.preflight-item.pass{border-left-color:var(--accent)}.preflight-item.warn{border-left-color:#c87a08}.preflight-item.error{border-left-color:var(--danger)}.preflight-badge{font-size:11px;font-weight:700}.preflight-item.pass .preflight-badge{color:var(--accent)}.preflight-item.warn .preflight-badge{color:#a65e00}.preflight-item.error .preflight-badge{color:var(--danger)}.preflight-item strong,.preflight-item small{display:block}.preflight-item small{color:var(--muted);line-height:1.5;margin-top:2px}.align-tools{display:grid;grid-template-columns:repeat(4,1fr);gap:5px}.align-tools .icon-button{width:100%;height:34px}.multi-inspector[hidden]{display:none}.selection-transform[hidden]{display:none}.transform-actions{display:grid;grid-template-columns:1fr 1fr;gap:7px;margin-top:8px}.transform-actions button{justify-content:center}
.heading-actions{display:flex;gap:3px;align-items:center}
.offset-controls{display:grid;grid-template-columns:minmax(0,1fr) 34px 34px;gap:7px;align-items:end;margin-top:8px}.offset-controls label{margin:0}.offset-controls .icon-button{width:34px;height:34px}.offset-controls[hidden]{display:none}
.material-preset-row{display:grid;grid-template-columns:minmax(0,1fr) 30px 30px;gap:6px;align-items:center;margin:7px 0 10px}.material-preset-row input{min-width:0}.material-preset-row .icon-button{width:30px;height:30px}
.report-body{padding:18px;min-height:440px;background:#f4f6f7}.field-grid.three{grid-template-columns:repeat(3,minmax(0,1fr))}.report-fields{margin-bottom:14px}.report-fields label{display:flex;flex-direction:column;gap:5px;font-size:12px}.report-summary{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px}.report-card{min-width:0;padding:12px;border:1px solid var(--line);border-radius:6px;background:#fff}.report-card.wide{grid-column:span 2}.report-card strong{display:block;margin-bottom:8px;font-size:13px}.report-card dl{display:grid;grid-template-columns:minmax(82px,auto) 1fr;gap:6px 10px;margin:0;font-size:12px}.report-card dt{color:var(--muted)}.report-card dd{min-width:0;margin:0;text-align:right;overflow-wrap:anywhere}.report-card .report-value{font-size:22px;font-weight:700;color:var(--accent)}
@media(max-width:760px){.field-grid.three{grid-template-columns:1fr}.report-summary{grid-template-columns:1fr 1fr}.report-card.wide{grid-column:span 2}.preflight-summary{grid-template-columns:1fr 1fr}.preflight-item{grid-template-columns:58px 1fr}}.toast{position:fixed;left:50%;bottom:45px;transform:translate(-50%,18px);background:#20272b;color:#fff;padding:9px 14px;border-radius:4px;opacity:0;pointer-events:none;transition:.2s;z-index:20}.toast.show{opacity:1;transform:translate(-50%,0)}
.entity{vector-effect:non-scaling-stroke;fill:none}.entity.cut{stroke:var(--cut);stroke-width:1.25}.entity.fold{stroke:var(--fold);stroke-width:1;stroke-dasharray:7 4}.entity.perf{stroke:var(--perf);stroke-width:1;stroke-dasharray:2 3}.entity.annotation{stroke:#48545a;fill:#48545a;stroke-width:.8}.entity.selected{stroke:var(--selection)!important;stroke-width:2.2!important}.drawing-handle{fill:#fff;stroke:var(--selection);stroke-width:1;vector-effect:non-scaling-stroke}.preview-line{stroke:var(--selection);stroke-width:1;stroke-dasharray:5 4;fill:none;vector-effect:non-scaling-stroke}.snap-marker{fill:none;stroke:var(--selection);stroke-width:1;vector-effect:non-scaling-stroke}.selection-window{vector-effect:non-scaling-stroke;stroke-width:1;stroke-dasharray:5 3}.selection-window.contained{fill:rgba(45,137,78,.12);stroke:#2d894e}.selection-window.crossing{fill:rgba(51,112,181,.12);stroke:#3370b5}
.layout-body{display:grid;grid-template-columns:230px 1fr;min-height:470px}.layout-controls{padding:14px;border-right:1px solid var(--line);background:#f7f8f9}.layout-controls label{display:flex;flex-direction:column;gap:4px;color:var(--muted);font-size:11px}.layout-controls input{height:32px;border:1px solid var(--line);border-radius:3px;padding:0 7px;background:#fff}.layout-controls .check-label{flex-direction:row;align-items:center;margin-top:18px;color:var(--text)}.layout-controls .primary{width:100%;margin-top:12px}.layout-stats{margin-top:12px;padding:10px;background:#fff;border:1px solid var(--line);border-radius:4px;font-size:12px;line-height:1.75}.layout-stats strong{color:var(--accent);font-size:15px}.layout-preview{display:grid;place-items:center;padding:16px;background:#dfe5e8;overflow:auto}.layout-preview svg{width:100%;height:430px;background:#fff;box-shadow:0 3px 14px rgba(20,30,36,.12)}@media(max-width:1100px){.workspace{grid-template-columns:230px minmax(370px,1fr) 265px}.top-actions .command-button{font-size:0;width:36px;padding:0}.top-actions .command-button svg{margin:0}.template-grid{grid-template-columns:1fr}}
.align-tools{display:grid;grid-template-columns:repeat(4,1fr);gap:5px}.align-tools .icon-button{width:100%;height:34px}.multi-inspector[hidden]{display:none}.selection-transform[hidden]{display:none}.transform-actions{display:grid;grid-template-columns:1fr 1fr;gap:7px;margin-top:8px}.transform-actions button{justify-content:center}
.heading-actions{display:flex;gap:3px;align-items:center}
.offset-controls{display:grid;grid-template-columns:minmax(0,1fr) 34px 34px;gap:7px;align-items:end;margin-top:8px}.offset-controls label{margin:0}.offset-controls .icon-button{width:34px;height:34px}.offset-controls[hidden]{display:none}
.material-preset-row{display:grid;grid-template-columns:minmax(0,1fr) 30px 30px;gap:6px;align-items:center;margin:7px 0 10px}.material-preset-row input{min-width:0}.material-preset-row .icon-button{width:30px;height:30px}
.report-body{padding:18px;min-height:440px;background:#f4f6f7}.field-grid.three{grid-template-columns:repeat(3,minmax(0,1fr))}.report-fields{margin-bottom:14px}.report-fields label{display:flex;flex-direction:column;gap:5px;font-size:12px}.report-summary{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px}.report-card{min-width:0;padding:12px;border:1px solid var(--line);border-radius:6px;background:#fff}.report-card.wide{grid-column:span 2}.report-card strong{display:block;margin-bottom:8px;font-size:13px}.report-card dl{display:grid;grid-template-columns:minmax(82px,auto) 1fr;gap:6px 10px;margin:0;font-size:12px}.report-card dt{color:var(--muted)}.report-card dd{min-width:0;margin:0;text-align:right;overflow-wrap:anywhere}.report-card .report-value{font-size:22px;font-weight:700;color:var(--accent)}
@media(max-width:760px){.field-grid.three{grid-template-columns:1fr}.report-summary{grid-template-columns:1fr 1fr}.report-card.wide{grid-column:span 2}.layout-body{grid-template-columns:1fr}.layout-controls{border-right:0;border-bottom:1px solid var(--line)}.layout-preview svg{height:330px}html,body{overflow:auto}.app-header{height:auto;min-height:58px;flex-wrap:wrap;padding:8px}.brand{min-width:0}.top-actions{width:100%;overflow-x:auto}.workspace{height:auto;min-width:0;display:flex;flex-direction:column}.left-panel{height:340px;border-right:0;border-bottom:1px solid var(--line)}.template-grid{grid-template-columns:repeat(2,1fr)}.drawing-area{height:68vh;min-height:500px;order:2}.right-panel{order:3;border-left:0;border-top:1px solid var(--line);max-height:none}.tool-strip{height:58px}.tool{min-width:48px}.status-bar{overflow-x:auto;white-space:nowrap}.property-section{padding:11px}.right-actions{position:static}.modal{min-width:0;width:92vw}.three-viewport{height:320px}}
@media print{.app-header,.left-panel,.right-panel,.tool-strip,.status-bar,.coordinates,.zoom-controls,.canvas-hint{display:none!important}.workspace,.drawing-area,.canvas-shell{display:block;width:100%;height:100%;background:#fff}.drawing-area{height:100vh}#cadCanvas{width:100vw;height:100vh}}