@import"/fonts/fonts.css";:root{--font-ui: "Poppins", "CN Drawing Symbols", sans-serif;--font-drawing: "Poppins", "CN Drawing Symbols", sans-serif;--font-numeric: "IBM Plex Mono", "CN Drawing Symbols", monospace;--font-size-xs: 10px;--font-size-sm: 11px;--font-size-md: 12px;--font-size-lg: 13px;--panel-pad: 10px 14px;--panel-pad-sm: 8px 10px;--radius-xs: 3px;--radius-sm: 4px;--radius-md: 6px;--radius-lg: 8px;--radius-pill: 999px;--z-tree-header: 1;--z-stepper-lock: 5;--z-stepper: 6;--z-overlay: 10;--z-ribbon: 20;--z-debug: 22;--z-dev-toolbar: 25;--z-price-float: 27;--z-panel: 200;--z-popover: 210;--z-face-flyout: 250;--z-toolbar: 280;--z-ref-banner: 300;--z-modal: 400;--z-tour: 9000;--z-phantom: 9050;--z-toast: 9100;--duration-pop: .15s;--duration-fast: .2s;--duration-pulse: 2s;--duration-breathe: 3.5s;--shadow-1: 0 2px 8px rgba(0,0,0,.18);--shadow-2: 0 4px 16px rgba(0,0,0,.28);--shadow-3: 0 8px 32px rgba(0,0,0,.35);--lw-thick: 1.5;--lw-thin: .5;--lw-object: var(--lw-thick);--lw-hidden: var(--lw-thin);--lw-dim: var(--lw-thin);--lw-extension: var(--lw-thin);--lw-leader: var(--lw-thin);--lw-balloon: var(--lw-thin);--lw-centerline: var(--lw-thin);--lw-annotation: var(--lw-thin);--lw-hidden-fine: .4;--lw-cutting: var(--lw-thick);--arrow-len: 10;--arrow-half: 1.5;--font-dim: 400 italic 11px var(--font-drawing, Poppins, sans-serif);--font-dim-small: 300 italic 9px var(--font-drawing, Poppins, sans-serif);--font-tolerance: 400 8px var(--font-drawing, Poppins, sans-serif);--font-annotation: 400 10px var(--font-drawing, Poppins, sans-serif);--font-balloon: 500 9px var(--font-drawing, Poppins, sans-serif)}:root{--bg: #18181B;--surface: #1e1e22;--surface2: #27272A;--border: #3F3F46;--text: #fafafa;--text2: #A1A1AA;--seg-fill: #52525B;--seg-stroke: #A1A1AA;--face-stroke: #71717A;--error: #ef4444;--warn: #f59e0b;--valid: #22c55e;--bg-panel: #1e1e22;--text-dim: #71717A;--text-muted: #A1A1AA;--success: var(--valid);--warning: var(--warn);--text-secondary: var(--text2)}[data-theme=light]{--bg: #f4f4f5;--surface: #ffffff;--surface2: #e4e4e7;--border: #d4d4d8;--text: #18181B;--text2: #52525B;--seg-fill: #d4d4d8;--seg-stroke: #52525B;--face-stroke: #71717A;--error: #dc2626;--warn: #d97706;--valid: #16a34a;--bg-panel: #ffffff;--text-dim: #71717A;--text-muted: #A1A1AA;--success: var(--valid);--warning: var(--warn);--text-secondary: var(--text2)}:root{--accent: #3B82F6;--seg-selected: #60A5FA;--feature: #ff6b35;--face-active: #facc15;--feature-soft: color-mix(in srgb, var(--feature) 12%, transparent);--feature-soft-mid: color-mix(in srgb, var(--feature) 6%, transparent);--accent-soft: color-mix(in srgb, var(--accent) 12%, transparent);--valid-soft: color-mix(in srgb, var(--valid) 10%, transparent);--warn-soft: color-mix(in srgb, var(--warn) 8%, transparent);--error-soft: color-mix(in srgb, var(--error) 8%, transparent);--face-active-soft: color-mix(in srgb, var(--face-active) 8%, transparent)}[data-theme=light]{--accent: #2563EB;--seg-selected: #2563EB;--feature: #ea580c;--face-active: #ca8a04;--feature-soft: color-mix(in srgb, var(--feature) 10%, transparent);--feature-soft-mid: color-mix(in srgb, var(--feature) 5%, transparent);--accent-soft: color-mix(in srgb, var(--accent) 10%, transparent);--valid-soft: color-mix(in srgb, var(--valid) 8%, transparent);--warn-soft: color-mix(in srgb, var(--warn) 6%, transparent);--error-soft: color-mix(in srgb, var(--error) 6%, transparent);--face-active-soft: color-mix(in srgb, var(--face-active) 6%, transparent)}*,*:before,*:after{box-sizing:border-box}body,input,select,button,textarea{font-family:var(--font-ui)}input[type=text][inputmode=decimal],input[type=number],[data-numeric]{font-family:var(--font-numeric);font-variant-numeric:tabular-nums}.drawing-hidden line,.drawing-hidden path,.drawing-hidden circle,.drawing-hidden polygon,.drawing-hidden rect{stroke-width:var(--lw-hidden)!important;stroke-dasharray:4,3;opacity:.4}@keyframes popIn{0%{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:translateY(0)}}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes flyIn{0%{opacity:0;transform:translate(-50%) translateY(-4px)}to{opacity:1;transform:translate(-50%) translateY(0)}}@keyframes plusBreathe{0%,to{opacity:.15}50%{opacity:.8}}@keyframes chipPulse{0%,to{border-color:var(--accent)}50%{border-color:color-mix(in srgb,var(--accent) 30%,transparent)}}@keyframes caretBreathe{0%,to{opacity:.5}50%{opacity:.15}}@keyframes stepperSlideIn{0%{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:translateY(0)}}@keyframes stepperPulse{0%,to{box-shadow:0 0 color-mix(in srgb,var(--accent) 40%,transparent)}50%{box-shadow:0 0 0 4px color-mix(in srgb,var(--accent) 15%,transparent)}}.hidden{display:none!important}.ef-subtitle{font-weight:400;font-size:var(--font-size-sm);color:var(--text2);text-transform:none;letter-spacing:0;font-family:var(--font-numeric);font-variant-numeric:tabular-nums}.ef-info{font-size:var(--font-size-sm);color:var(--text2);padding:8px 0 4px;border-top:1px solid var(--border);margin-top:10px;line-height:1.5}.ef-hint{font-size:var(--font-size-sm);color:var(--text2);padding:6px 0;line-height:1.4}.ef-hint-warn{color:var(--warn)}.ef-section{margin-top:12px;padding-top:12px;border-top:1px solid var(--border)}.ef-check-row{gap:14px}.edit-float .ef-row.ef-check-row label{width:auto;display:flex;align-items:center;gap:4px}.btn-panel{padding:7px 16px;border-radius:var(--radius-sm);border:1px solid var(--border);background:var(--surface2);color:var(--text);font-size:var(--font-size-md);font-weight:600;cursor:pointer;font-family:inherit;white-space:nowrap;transition:background var(--duration-pop)}.btn-panel:hover{background:var(--border)}.btn-panel.danger{color:var(--error);border-color:var(--error)}.btn-panel.danger:hover{background:color-mix(in srgb,var(--error) 10%,transparent)}.btn-panel.confirm{color:var(--valid);border-color:var(--valid)}.btn-panel.confirm:hover{background:var(--valid-soft)}.val-heading-error{color:var(--error);font-size:var(--font-size-md);margin-bottom:4px;font-weight:600}.val-heading-warn{color:var(--warn);font-size:var(--font-size-md);margin-bottom:4px;margin-top:4px;font-weight:600}.tb-sep{width:1px;height:16px;background:var(--border);margin:0 2px}.phantom-dimmed{opacity:.5;pointer-events:none}.phantom-ineligible{opacity:.25}.phantom-place-btn{position:fixed;z-index:var(--z-toolbar);padding:8px 16px;border-radius:var(--radius-md);border:1.5px solid var(--valid);background:var(--surface);color:var(--valid);font-size:13px;font-weight:600;font-family:inherit;cursor:pointer;touch-action:manipulation;box-shadow:var(--shadow-1)}.ef-ref-value{font-size:var(--font-size-lg);color:var(--text2);font-variant-numeric:tabular-nums}.ef-ref-btns{display:flex;flex-wrap:wrap;gap:6px}body{background:var(--bg);color:var(--text);height:100vh;height:100dvh;display:flex;flex-direction:column;overflow:hidden;margin:0}.main-wrap{flex:1;display:flex;flex-direction:column;overflow:hidden}.canvas-wrap{display:flex;align-items:stretch;flex:1;overflow:hidden}.canvas-wrap .tree-panel{position:relative;width:250px;border-right:1px solid var(--border);display:flex;flex-direction:column;overflow:hidden}.canvas-area{position:relative;flex:1;min-width:0;display:flex;flex-direction:column;overflow:hidden}svg#canvas{background:var(--surface);cursor:crosshair;flex:1;width:100%;touch-action:manipulation}button,input,select,.ef-close,.face-pick-target,.tol-pill,.dim-change-btn,.ref-btn{touch-action:manipulation}.compass-wrap{position:absolute;top:100px;left:10px;z-index:var(--z-overlay);display:flex;align-items:center;gap:8px}.tb-zone{position:absolute;z-index:var(--z-overlay);display:flex;align-items:center;gap:8px}.tb-history{top:96px;left:110px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-sm);overflow:hidden;gap:0}.tb-mode{top:96px;left:50%;transform:translate(-50%);background:var(--surface2);border:1px solid var(--border);border-radius:var(--radius-pill);padding:3px;gap:0}.tb-view{bottom:14px;left:14px}.canvas-area.three-d .tb-view{display:none}.ur-btn{width:38px;height:34px;padding:0;border:none;background:transparent;color:var(--text2);cursor:pointer;line-height:1;display:inline-flex;align-items:center;justify-content:center}.ur-btn+.ur-btn{border-left:1px solid var(--border)}.ur-btn:disabled{opacity:.2;cursor:default}.ur-btn:not(:disabled):hover{color:var(--accent);background:var(--surface2)}.tb-mode .seg-indicator{position:absolute;top:3px;bottom:3px;left:0;width:0;background:var(--accent);border-radius:var(--radius-pill);transition:transform .18s ease,width .18s ease;pointer-events:none;z-index:0}.tb-mode .seg-btn{position:relative;z-index:1;border:none;background:transparent;padding:5px 16px;font-family:inherit;font-size:var(--font-size-sm);font-weight:600;color:var(--text2);cursor:pointer;border-radius:var(--radius-pill);transition:color .15s}.tb-mode .seg-btn:hover:not(.selected){color:var(--text)}.tb-mode .seg-btn.selected{color:#fff}.tb-view .tb-pill{display:inline-flex;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-sm);overflow:hidden}.tb-view .tb-pill button{padding:5px 14px;border:none;background:transparent;color:var(--text2);cursor:pointer;font-family:inherit;font-size:var(--font-size-sm);font-weight:600}.tb-view .tb-pill button+button{border-left:1px solid var(--border)}.tb-view .tb-pill button.selected{background:var(--accent);color:#fff}.tb-view .tb-pill button:not(.selected):hover{background:var(--surface2)}.tb-view .tb-zoom{display:inline-flex;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-sm);overflow:hidden}.tb-view .tb-zoom button{width:32px;height:28px;padding:0;border:none;background:transparent;color:var(--text2);cursor:pointer;font-family:inherit;font-size:14px;line-height:1;display:inline-flex;align-items:center;justify-content:center}.tb-view .tb-zoom button+button{border-left:1px solid var(--border)}.tb-view .tb-zoom button:hover:not(:disabled){background:var(--surface2);color:var(--accent)}.tb-view .tb-zoom button:disabled{opacity:.35;cursor:default}.canvas-area.drawing:after{content:"";position:absolute;inset:0;border:2px solid var(--accent);pointer-events:none}.canvas-area.drawing svg#canvas{--bg: #f4f4f5;--surface: #ffffff;--surface2: #e4e4e7;--border: #d4d4d8;--text: #18181B;--text2: #52525B;--seg-fill: #d4d4d8;--seg-stroke: #52525B;--face-stroke: #71717A;--feature: #ea580c;--face-active: #ca8a04;--accent: #2563EB}.dev-toolbar{position:absolute;bottom:8px;right:12px;z-index:var(--z-dev-toolbar);display:flex;align-items:center;gap:4px}.dev-toolbar button{padding:2px 8px;border-radius:var(--radius-sm);border:1px solid var(--border);background:var(--surface);color:var(--text2);font-size:var(--font-size-sm);cursor:pointer;font-family:inherit}.dev-toolbar button:hover{background:var(--surface2)}.dev-toolbar label{font-size:var(--font-size-sm);color:var(--text2);cursor:pointer;user-select:none;display:flex;align-items:center;gap:3px}.dev-toolbar input{cursor:pointer}.dev-toolbar .copy-ok{color:var(--valid);font-size:var(--font-size-sm);font-weight:600;opacity:0;transition:opacity var(--duration-fast)}.dev-toolbar .copy-ok.show{opacity:1}.price-float{position:absolute;top:8px;right:12px;z-index:var(--z-price-float);background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);padding:8px 10px;font-size:var(--font-size-lg);display:flex;flex-direction:column;box-shadow:var(--shadow-1);width:140px;transition:padding .3s ease,width .3s ease}.price-float:hover{padding:12px 16px;width:210px}.price-float .pf-pn{font-size:var(--font-size-sm);color:var(--text2);letter-spacing:.02em;max-height:0;opacity:0;overflow:hidden;transition:max-height .3s ease,opacity .2s ease,margin .3s ease;margin:0;word-break:break-all;line-height:1.3}.price-float:hover .pf-pn{max-height:48px;opacity:1;margin-bottom:2px}.price-float .pf-pn span{color:var(--text);font-weight:600}.price-float .pf-total{font-size:14px;font-weight:700;color:var(--text);font-variant-numeric:tabular-nums;font-family:var(--font-numeric);transition:font-size .3s ease;margin-bottom:4px}.price-float:hover .pf-total{font-size:20px}.price-float .pf-per{font-size:var(--font-size-sm);color:var(--text2);font-family:var(--font-numeric);max-height:0;opacity:0;overflow:hidden;transition:max-height .3s ease,opacity .2s ease,margin .3s ease;margin:0}.price-float:hover .pf-per{max-height:20px;opacity:1;margin-bottom:4px}.price-float .pf-hr{height:1px;background:var(--border);overflow:hidden;max-height:0;transition:max-height .3s ease,margin .3s ease;margin:0}.price-float:hover .pf-hr{max-height:1px;margin:4px 0}.price-float .pf-qty{display:flex;align-items:center;gap:4px;margin-bottom:4px}.price-float .pf-qty-label{font-size:var(--font-size-sm);color:var(--text2);font-weight:600}.price-float .pf-qty button{width:20px;height:20px;border-radius:var(--radius-sm);border:1px solid var(--border);background:var(--surface2);color:var(--text);font-size:12px;cursor:pointer;display:flex;align-items:center;justify-content:center;line-height:1;padding:0}.price-float .pf-qty button:hover{background:var(--border)}.price-float .pf-qty input[type=number]{width:36px;height:22px;border-radius:var(--radius-sm);border:1px solid var(--border);background:var(--surface2);color:var(--text);font-size:var(--font-size-md);font-weight:600;text-align:center;font-variant-numeric:tabular-nums;font-family:var(--font-numeric);-moz-appearance:textfield;outline:none}.price-float .pf-qty input[type=number]:focus{border-color:var(--accent)}.price-float .pf-qty input::-webkit-outer-spin-button,.price-float .pf-qty input::-webkit-inner-spin-button{-webkit-appearance:none;margin:0}.price-float .pf-ship{font-size:var(--font-size-sm);color:var(--valid);font-weight:600;margin-bottom:4px}.price-float .pf-cart{padding:6px 10px;border-radius:var(--radius-pill);border:none;background:#ffd814;color:#0f1111;font-size:13px;font-weight:700;cursor:pointer;font-family:inherit;letter-spacing:.02em;transition:background var(--duration-fast)}.price-float .pf-cart:hover{background:#f7ca00}.debug-panel{display:none;overflow-y:auto;padding:12px 20px;background:var(--bg);border-top:1px solid var(--border);position:absolute;bottom:0;left:0;right:0;z-index:var(--z-debug)}.debug-panel.open{display:block;max-height:50vh}.val-indicator{position:absolute;bottom:0;left:0;right:0;z-index:var(--z-overlay);font-size:var(--font-size-md);cursor:pointer;transition:all var(--duration-fast);display:none;pointer-events:auto}.val-indicator.has-errors{display:block;border-top:2px solid var(--error);background:var(--error-soft)}.val-indicator.has-warnings{display:block;border-top:2px solid var(--warn);background:var(--warn-soft)}.val-indicator .val-summary{padding:4px 12px;display:flex;align-items:center;gap:8px}.val-indicator .val-summary .count{font-size:var(--font-size-sm);font-weight:600}.val-indicator .val-detail{padding:4px 12px 8px;display:none;max-height:120px;overflow-y:auto}.val-indicator.expanded .val-detail{display:block}.val-indicator .val-issue{padding:2px 0;display:flex;gap:6px;align-items:flex-start;font-size:var(--font-size-md)}.val-indicator .val-issue.err{color:var(--error)}.val-indicator .val-issue.wrn{color:var(--warn)}.canvas-area.drawing .val-indicator{display:none!important}.canvas-area.drawing .dev-toolbar,.canvas-area.three-d #canvas,.canvas-area.three-d .feature-ribbon,.canvas-area.three-d .compass-wrap,.canvas-area.three-d .right-rail{display:none}.canvas-area.three-d .val-indicator{display:none!important}.canvas-area.three-d .dev-toolbar{display:none}#threeHost{display:none;position:absolute;inset:0;z-index:1;background:var(--surface)}.canvas-area.three-d #threeHost{display:block}.tree-panel.tree-three-d{display:none}.canvas-panel-backdrop{position:absolute;inset:0;z-index:var(--z-panel)}.canvas-panel{position:absolute;z-index:calc(var(--z-panel) + 1);background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);box-shadow:var(--shadow-2);max-height:82vh;overflow-y:auto;min-width:360px;max-width:min(1000px,90vw);padding:14px 18px;animation:popIn var(--duration-pop) ease-out}.canvas-panel--center{top:50%;left:50%;transform:translate(-50%,-50%);animation:fadeIn var(--duration-pop) ease-out}.edit-float{position:fixed;z-index:var(--z-panel);background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-md);box-shadow:var(--shadow-2);padding:12px 16px;min-width:268px;animation:popIn var(--duration-pop) ease-out}.edit-float .ef-title{font-size:var(--font-size-sm);font-weight:600;color:var(--text2);text-transform:uppercase;letter-spacing:.04em;margin-bottom:12px;display:flex;justify-content:space-between;align-items:center;gap:10px}.edit-float .ef-close{background:none;border:none;color:var(--text2);cursor:pointer;font-size:15px;padding:0 4px;flex-shrink:0}.edit-float .ef-close:hover{color:var(--text)}.edit-float .ef-row{display:flex;align-items:center;gap:12px;margin-bottom:10px;position:relative}.edit-float .ef-row label{width:92px;font-size:var(--font-size-sm);color:var(--text2);flex-shrink:0;line-height:1.3}.edit-float .ef-row input,.edit-float .ef-row select{flex:1;min-width:0;padding:6px 10px;border-radius:var(--radius-sm);border:1px solid var(--border);background:var(--surface);color:var(--text);font-size:var(--font-size-md);font-family:inherit}.edit-float .ef-row input::-webkit-outer-spin-button,.edit-float .ef-row input::-webkit-inner-spin-button{-webkit-appearance:none;margin:0}.edit-float .ef-row input[type=number]{-moz-appearance:textfield}.edit-float .ef-row input.dim-input{flex:0 0 auto}.edit-float .ef-actions{display:flex;gap:10px;margin-top:16px;justify-content:flex-end;flex-wrap:wrap}.edit-float .ef-row button{padding:4px 12px;border-radius:var(--radius-sm);border:1px solid var(--border);background:var(--surface);color:var(--text);font-size:var(--font-size-sm);cursor:pointer}.edit-float .ef-row button:hover{background:var(--border)}.edit-float .ef-row button.selected{border-color:var(--face-active);color:var(--face-active)}.edit-float .ef-warn{font-size:var(--font-size-sm);color:var(--warning)}.edit-float a{font-size:var(--font-size-sm);color:var(--face-active);text-decoration:none}.edit-float a:hover{text-decoration:underline}.edit-float.ef-compact{padding:10px 12px;min-width:220px}.edit-float.ef-compact .ef-title{margin-bottom:8px;font-size:var(--font-size-xs)}.edit-float.ef-compact .ef-actions{margin-top:10px;gap:8px}.edit-float.ef-compact .ef-actions button{padding:5px 12px;font-size:var(--font-size-sm)}.edit-float.ef-inline{padding:8px 10px;min-width:0}.edit-float.ef-inline .ef-input-row{margin-bottom:6px}.edit-float.ef-inline .ef-pill-row{margin-bottom:0;gap:8px}.ef-dim-row{display:flex;align-items:baseline;gap:8px;margin-bottom:10px;flex-wrap:wrap}.dim-input{width:112px;font-size:var(--font-size-lg);font-weight:500;font-family:var(--font-numeric);font-variant-numeric:tabular-nums;padding:5px 8px;border-radius:var(--radius-sm);border:1px solid var(--accent);background:var(--surface);color:var(--text);text-align:center;outline:none;flex:0 0 auto}.dim-input:focus{border-color:var(--accent);background:var(--surface)}.dim-input::-webkit-outer-spin-button,.dim-input::-webkit-inner-spin-button{-webkit-appearance:none;margin:0}.ef-dim-row .dim-input{width:96px}.ef-dim-row .dim-prefix{font-size:var(--font-size-md);color:var(--text2);font-weight:600;flex-shrink:0}.ef-dim-row .dim-ref{font-size:var(--font-size-sm);color:var(--text2);white-space:nowrap}.ef-dim-row .dim-change-btn{font-size:var(--font-size-xs);padding:3px 8px;border:1px solid var(--valid);border-radius:var(--radius-sm);background:transparent;color:var(--valid);cursor:pointer;white-space:nowrap;font-weight:600}.ef-dim-row .dim-change-btn:hover{background:var(--valid-soft)}.ef-input-row{display:flex;align-items:baseline;gap:8px;margin-bottom:8px}.ef-input-row .dim-prefix{font-size:var(--font-size-md);color:var(--text2);font-weight:600;flex-shrink:0}.ef-input-row .dimension-input{flex:1;min-width:0}.ef-pill-row{display:flex;align-items:center;gap:8px;margin-bottom:8px;flex-wrap:wrap}.ef-ref-row{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px;padding-bottom:4px;gap:10px}.ef-ref-label{font-size:var(--font-size-sm);color:var(--text2)}.ef-promo-ok{color:var(--success)}.ef-promo-muted{color:var(--text-secondary)}.ef-promo-derived{color:var(--text-secondary);font-style:italic}.ef-promo-heading{font-weight:500}.ef-radio-row{display:flex;gap:6px;padding:2px 8px;cursor:pointer}.demotion-strike{stroke:var(--error);stroke-width:1.5;pointer-events:none}.demotion-projected{font:var(--font-dim);fill:var(--accent);pointer-events:none}.demotion-target{fill:transparent;cursor:pointer}.demotion-target:hover{fill:var(--accent-soft)}.cad-toast{position:fixed;bottom:24px;left:50%;transform:translate(-50%) translateY(12px);padding:8px 16px;border-radius:var(--radius-sm, 6px);background:var(--surface2, 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