:root{--font-caption:12px;--font-secondary:14px;--font-body:15px;--font-button:15px;--font-panel-title:17px;--control-height:40px;--touch-target:44px;--icon-size:22px;color:#22302d;font-synthesis:none;--ink:#22302d;--muted:#6f7c78;--line:#dde4e1;--surface:#fff;--accent:#147d72;--accent-soft:#e7f3f0;--shadow:0 20px 55px #20342f1a;background:#f4f6f4;font-family:Inter,Noto Sans SC,Microsoft YaHei,system-ui,sans-serif}*{box-sizing:border-box}body{min-width:320px;min-height:100vh;margin:0}button,input,select{font:inherit}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.45}.visually-hidden{clip:rect(0 0 0 0);white-space:nowrap;width:1px;height:1px;position:fixed;overflow:hidden}.app-shell{min-height:100vh;padding:0 28px 28px}.topbar{grid-template-columns:1fr auto 1fr;align-items:center;gap:20px;height:70px;display:grid}.brand{color:var(--ink);align-items:center;gap:10px;font-size:18px;font-weight:760;text-decoration:none;display:inline-flex}.brand-mark{color:#fff;background:var(--ink);border-radius:12px;place-items:center;width:34px;height:34px;font-size:15px;display:grid}.project-title{color:var(--muted);font-size:14px}.save-dot{background:#56a67c;border-radius:50%;width:7px;height:7px;margin-right:8px;display:inline-block}.save-dot.loading{background:#d39a37;animation:1s infinite alternate save-pulse}.save-dot.error{background:#cc5148}@keyframes save-pulse{to{opacity:.35}}.top-actions{justify-content:flex-end;gap:6px;display:flex}.top-actions button,.category-list button{color:#56635f;background:0 0;border:0;border-radius:10px;padding:9px 13px}.top-actions button:hover,.category-list button:hover{color:var(--ink);background:#e9eeeb}.top-actions .export-button{color:#fff;background:var(--ink)}.export-menu-wrap{position:relative}.export-menu{z-index:20;border:1px solid var(--line);background:#fff;border-radius:12px;gap:3px;width:180px;padding:6px;display:grid;position:absolute;top:calc(100% + 8px);right:0;box-shadow:0 14px 35px #22302d29}.top-actions .export-menu button{color:var(--ink);text-align:left;font-size:var(--font-secondary);padding:9px 10px;display:block}.view-switch{background:#e9eeeb;border-radius:12px;gap:2px;padding:3px;display:flex}.top-actions .view-switch button{font-size:var(--font-secondary);border-radius:9px;padding:6px 11px}.top-actions .view-switch button.active{color:var(--ink);background:#fff;box-shadow:0 2px 9px #22302d17}.intro{justify-content:space-between;align-items:end;gap:30px;max-width:1450px;margin:16px auto 22px;display:flex}.eyebrow{color:var(--accent);font-size:var(--font-secondary);letter-spacing:.08em;text-transform:uppercase;font-weight:750}.intro h1{letter-spacing:-.04em;margin:7px 0 0;font-size:clamp(26px,4vw,42px)}.intro p{max-width:480px;color:var(--muted);margin:0;line-height:1.7}.editor-card{background:var(--surface);max-width:1450px;min-height:760px;box-shadow:var(--shadow);border:1px solid #22302d14;border-radius:24px;grid-template-rows:minmax(0,1fr) auto;grid-template-columns:92px minmax(0,1fr) 280px;margin:auto;display:grid;overflow:hidden}.tool-rail{border-right:1px solid var(--line);background:#fbfcfb;grid-row:1/3;padding:18px 12px}.tool{width:100%;color:var(--muted);font-size:var(--font-secondary);background:0 0;border:0;border-radius:13px;place-items:center;gap:5px;margin-bottom:7px;padding:10px 4px;display:grid}.tool span{color:#68756f;background:#eef2f0;border-radius:9px;place-items:center;width:28px;height:28px;font-weight:760;display:grid}.tool.active{color:var(--accent);background:var(--accent-soft)}.tool.active span{color:#fff;background:var(--accent)}.canvas-placeholder{background:#f7f9f7;min-height:520px;position:relative;overflow:hidden}.canvas-workspace{touch-action:none;position:absolute;inset:0}.tool-instruction{z-index:8;color:#31504a;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);max-width:calc(100% - 340px);font-size:var(--font-secondary);pointer-events:none;background:#f5fcf9f0;border:1px solid #147d7233;border-radius:12px;align-items:center;gap:10px;padding:9px 13px;display:flex;position:absolute;top:16px;left:50%;transform:translate(-50%);box-shadow:0 8px 24px #22302d14}.tool-instruction strong{color:var(--accent);flex:none}.snap-hint{color:#805714;font-size:var(--font-secondary);pointer-events:none;background:#fff4d9;border-radius:9px;padding:7px 10px;font-weight:720;position:absolute;bottom:14px;right:14px;box-shadow:0 5px 20px #22302d14}.canvas-onboarding{text-align:center;pointer-events:none;background:radial-gradient(circle,#f8faf8f5,#f8faf866 55%,#0000 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#22302d14}.canvas-hud span:first-child{color:var(--ink);font-weight:760}.canvas-hud button{color:var(--accent);background:var(--accent-soft);font-size:var(--font-secondary);border:0;border-radius:6px;padding:4px 7px}.renovation-toolbar{z-index:3;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);background:#ffffffeb;border:1px solid #22302d1a;border-radius:11px;align-items:center;gap:3px;padding:4px;display:flex;position:absolute;top:13px;left:13px;box-shadow:0 7px 22px #22302d17}.renovation-toolbar button,.three-renovation-switch button{color:var(--muted);font-size:var(--font-secondary);background:0 0;border:0;border-radius:7px;padding:7px 10px}.renovation-toolbar button.active,.three-renovation-switch button.active{color:#fff;background:var(--ink)}.renovation-legend{color:var(--muted);font-size:var(--font-secondary);white-space:nowrap;align-items:center;gap:4px;margin:0 5px;display:flex}.renovation-legend 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i{color:#9aa7a2;width:22px;height:22px;font-size:var(--font-secondary);background:#e3eae7;border-radius:50%;place-items:center;font-style:normal;font-weight:760;display:grid}.wizard-progress i.active{color:#fff;background:var(--accent)}.wizard-progress i:not(:last-child):after{content:"";position:absolute}.wizard-tip,.wizard-error{color:#79571f;font-size:var(--font-secondary);background:#fff7e5;border-radius:9px;padding:9px 10px;line-height:1.5}.wizard-error{color:#9f3f36;background:#fff0ed}.panel-section{margin-top:26px}.panel-section h3{font-size:var(--font-secondary);color:var(--muted);margin:0 0 10px;font-weight:680}.fake-field{border:1px solid var(--line);color:#485550;font-size:var(--font-secondary);background:#fff;border-radius:10px;padding:11px 12px}.file-name{text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.layer-row{width:100%;color:var(--ink);text-align:left;font-size:var(--font-secondary);background:0 0;border:0;border-bottom:1px solid #edf1ef;grid-template-columns:18px 1fr auto;align-items:center;gap:8px;padding:10px 2px;display:grid}.visibility{color:#c4ceca;font-size:var(--font-secondary)}.visibility.on{color:var(--accent)}.layer-state{color:#9aa6a1;font-size:var(--font-secondary)}.layer-control{border-bottom:1px solid #edf1ef;grid-template-columns:44px minmax(82px,1fr) 62px 44px;align-items:center;gap:5px;min-height:44px;padding:2px 0;font-size:14px;display:grid}.layer-control input{width:55px;accent-color:var(--accent)}.layer-icon,.layer-lock{color:#c1cbc7;background:0 0;border:0;width:44px;height:44px;padding:0;font-size:20px}.layer-icon.on{color:var(--accent)}.layer-lock{font-size:20px}.layer-lock.locked{color:#a15d43}.property-form{gap:12px;display:grid}.property-form label,.calibration-card label{color:var(--muted);font-size:var(--font-secondary);gap:6px;display:grid}.property-form input:not([type=range]),.property-form select,.calibration-card input{border:1px solid var(--line);width:100%;color:var(--ink);background:#fff;border-radius:9px;outline:none;padding:10px 11px}.property-form input:focus,.property-form select:focus,.calibration-card input:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}.property-form input[type=range]{width:100%;accent-color:var(--accent)}.coordinate-grid{grid-template-columns:1fr 1fr;gap:8px;display:grid}.coordinate-grid label{min-width:0}.canvas-workspace{cursor:default}.canvas-workspace.tool-wall{cursor:crosshair}.canvas-workspace.tool-opening,.canvas-workspace.tool-mep-point{cursor:copy}.canvas-workspace.tool-measure,.canvas-workspace.tool-calibrate,.canvas-workspace.tool-mep-route{cursor:crosshair}.canvas-workspace.is-panning{cursor:grabbing}.clearance-warning{color:#805b13;font-size:var(--font-secondary);background:#fff4d9;border-radius:9px;padding:10px 11px;line-height:1.5}.accessibility-toggle{color:var(--muted);font-size:var(--font-secondary);align-items:center;gap:8px;margin:10px 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16px}.furniture-catalog.collapsed{align-items:center;min-height:42px;padding-block:5px}.furniture-catalog.collapsed .catalog-controls{flex-direction:row;align-items:center;width:100%}.catalog-collapse{border:1px solid var(--line);background:#fff;border-radius:7px;min-height:40px;padding:7px 10px;font-size:14px}.catalog-height{color:var(--muted);font-size:var(--font-secondary);align-items:center;gap:5px;display:flex}.catalog-shortcuts{color:var(--muted);font-size:var(--font-secondary);flex:0 0 100%;align-items:center;gap:5px;display:flex}.catalog-shortcuts button{border:1px solid var(--line);min-height:40px;font-size:var(--font-secondary);background:#fff;border-radius:10px;padding:6px 9px}.catalog-controls{flex:0 0 212px;grid-template-columns:1fr 1fr;align-content:start;gap:8px;width:212px;display:grid}.catalog-controls strong{align-self:center;font-size:14px}.catalog-controls input{border:1px solid var(--line);background:#fff;border-radius:9px;outline:none;width:100%;min-width:0;min-height:40px;padding:7px 9px;font-size:14px}.catalog-controls input:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}.catalog-categories{grid-column:1/3;grid-template-columns:repeat(4,1fr);gap:4px;display:grid}.catalog-categories button{min-width:44px;min-height:44px;color:var(--muted);font-size:var(--font-secondary);background:0 0;border:0;border-radius:8px;justify-items:center;gap:2px;padding:5px 2px;display:grid}.catalog-categories button span{font-size:22px}.catalog-categories button.active{color:var(--accent);background:var(--accent-soft)}.furniture-list{scroll-snap-type:x proximity;gap:9px;min-width:0;padding-bottom:5px;display:flex;overflow-x:auto}.furniture-card{scroll-snap-align:start;flex:0 0 220px;position:relative}.favorite-furniture{z-index:2;place-items:center;position:absolute;top:5px;right:5px;color:#b38429!important;background:0 0!important;border:0!important;width:25px!important;height:25px!important;padding:0!important;display:grid!important}.draft-stats{grid-template-columns:1fr 1fr;gap:6px;display:grid}.draft-stats span{font-size:var(--font-secondary);background:#f1f5f3;border-radius:8px;padding:8px}.draft-stats strong{color:var(--accent);margin-right:4px;font-size:16px}.confidence-badge{font-size:var(--font-secondary);border-radius:8px;padding:8px}.confidence-badge.high{color:#21745d;background:#e8f7f1}.confidence-badge.medium{color:#8b611f;background:#fff7e8}.confidence-badge.low{color:#a44239;background:#fff0ed}.furniture-card>button{border:1px solid var(--line);width:100%;height:100%;color:var(--ink);text-align:left;background:#fff;border-radius:13px;grid-template-columns:62px 1fr 25px;align-items:center;gap:10px;padding:10px;display:grid}.furniture-card>button:hover{background:#f7fbfa;border-color:#9fc8bf;transform:translateY(-1px)}.furniture-preview{background:color-mix(in srgb, var(--item-color) 28%, white);border-radius:13px;place-items:center;width:62px;height:62px;display:grid}.furniture-preview i{color:var(--item-color);filter:brightness(.68);font-size:27px;font-style:normal}.furniture-copy{gap:3px;min-width:0;display:grid}.furniture-copy strong{text-overflow:ellipsis;white-space:nowrap;font-size:15px;overflow:hidden}.furniture-copy small{color:var(--muted);font-size:var(--font-secondary)}.furniture-copy em{color:#8d9893;font-size:var(--font-secondary);white-space:nowrap;font-style:normal}.recognition-diagnostics{color:var(--muted);font-size:var(--font-secondary)}.recognition-preview{border:1px solid var(--line);background:#f6f8f7;border-radius:10px;gap:7px;padding:8px;display:grid}.recognition-preview img{object-fit:contain;background:#fff;width:100%;max-height:260px}.recognition-preview button{min-height:40px;color:var(--accent);background:var(--accent-soft);border:0;border-radius:8px}.closure-suggestion-list{gap:8px;max-height:300px;margin-top:9px;display:grid;overflow:auto}.closure-suggestion{border:1px solid var(--line);background:#fff;border-radius:10px;padding:9px}.closure-suggestion.high{border-color:#9dccbd}.closure-suggestion.medium{border-color:#e7c98f}.closure-suggestion.low{border-color:#d8dde0}.closure-locate{width:100%;color:var(--ink);text-align:left;font-size:var(--font-secondary);background:0 0;border:0;gap:4px;padding:3px;display:grid}.closure-locate span{color:var(--muted);font-size:var(--font-secondary);line-height:1.45}.upload-furniture{min-height:40px;color:var(--accent);background:var(--accent-soft);font-size:var(--font-secondary);border:1px solid #9cc9bf;border-radius:8px;padding:7px 9px}.furniture-preview img{object-fit:cover;border-radius:inherit;width:100%;height:100%}.dialog-backdrop{z-index:120;background:#18221f7a;place-items:center;padding:20px;display:grid;position:fixed;inset:0}.custom-furniture-dialog{background:#fff;border-radius:18px;width:min(760px,96vw);max-height:92vh;padding:20px;overflow:auto;box-shadow:0 28px 80px #141e1b4d}.custom-furniture-dialog>header,.custom-furniture-dialog>footer{justify-content:space-between;align-items:center;gap:12px;display:flex}.custom-furniture-dialog>header h2{margin:4px 0 0}.custom-furniture-dialog>header button{background:0 0;border:0;width:44px;height:44px;font-size:28px}.custom-furniture-dialog>footer{justify-content:flex-end;margin-top:16px}.custom-furniture-dialog>footer button{border:0;border-radius:9px;min-height:44px;padding:9px 16px}.custom-furniture-grid{grid-template-columns:minmax(220px,.8fr) 1.2fr;gap:18px;margin-top:18px;display:grid}.custom-photo{min-height:250px;color:var(--muted);font-size:var(--font-secondary);background:#f6f9f7;border:1px dashed #b7c8c2;border-radius:13px;align-content:start;gap:10px;padding:12px;display:grid}.custom-photo img{object-fit:contain;background:#fff;border-radius:9px;width:100%;max-height:300px}.photo-upload{color:#fff;background:var(--accent);cursor:pointer;border-radius:9px;place-items:center;min-height:44px;display:grid}.photo-upload input{display:none}.parametric-preview{color:var(--muted);font-size:var(--font-secondary);background:#f3f6f4;border-radius:10px;place-items:center;gap:8px;padding:14px;display:grid}.parametric-preview i{width:calc(70px * var(--preview-ratio));background:var(--preview-color);max-width:180px;height:58px;box-shadow:8px 9px 0 color-mix(in srgb, var(--preview-color) 65%, black);border-radius:8px;display:block;transform:skewY(-5deg)}.color-material-editor{gap:9px;display:grid}.color-material-editor 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