:root{color:#16181d;background:#f4f2ed;--bg: #f4f2ed;--chrome: #eee7da;--panel: #f8f6f1;--panel-warm: #f5efe4;--surface: #fffdf8;--surface-muted: #faf7ef;--surface-cool: #f1f8f7;--line: #d9d1c3;--line-soft: #e8e1d6;--line-strong: #c8bdae;--text: #16181d;--text-muted: #6a6f78;--accent: #17656a;--accent-hover: #114f54;--accent-soft: #e3f0ef;--gold: #f0c84b;--shadow-soft: 0 1px 2px rgba(43, 34, 22, .06), 0 10px 26px rgba(43, 34, 22, .04);--shadow-pop: 0 14px 38px rgba(43, 34, 22, .16);--font-ui: -apple-system, BlinkMacSystemFont, "SF Pro Text", "SF Pro Display", "Segoe UI", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;--font-size-caption: 11px;--font-size-small: 12px;--font-size-body: 13px;--font-size-control: 14px;--font-size-title: 15px;--font-size-display: 20px;--line-tight: 1.12;--line-normal: 1.35;--weight-regular: 400;--weight-medium: 500;--weight-semibold: 600;--weight-bold: 700;font-family:var(--font-ui);font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}*{box-sizing:border-box}body{margin:0;min-width:320px;min-height:100vh;background:var(--bg)}.app-fallback{display:grid;place-content:center;gap:12px;min-height:100vh;padding:32px;color:var(--text);text-align:center}.app-fallback h1,.app-fallback p{margin:0}.app-fallback pre{max-width:680px;margin:0;padding:14px 16px;overflow:auto;border:1px solid var(--line);border-radius:10px;background:var(--surface);color:var(--danger, #e9766b);text-align:left;white-space:pre-wrap}.app-fallback button{justify-self:center;min-height:34px;padding:0 14px}button,input,select{font:inherit}body,button,input,select{font-size:var(--font-size-control);line-height:var(--line-normal)}button{border:1px solid var(--line-strong);border-radius:7px;background:var(--surface);color:var(--text);cursor:pointer;font-weight:var(--weight-medium);min-height:36px;padding:0 12px;transition:background-color .12s ease,border-color .12s ease,box-shadow .12s ease,color .12s ease,transform 80ms ease}button:hover:not(:disabled){border-color:var(--line);background:var(--surface)}button:disabled{cursor:default;opacity:.45}.primary{border-color:var(--accent);background:var(--accent);color:#fff}.primary:hover:not(:disabled){border-color:var(--accent-hover);background:var(--accent-hover)}.hidden-input{display:none}small{color:var(--text-muted);font-size:var(--font-size-small);line-height:var(--line-normal)}.field-hint{display:block;margin-top:4px;color:var(--text-muted);font-size:var(--font-size-caption);line-height:1.25}input:focus-visible,select:focus-visible,button:focus-visible{outline:3px solid color-mix(in srgb,var(--accent) 22%,transparent);outline-offset:2px}*{scrollbar-color:color-mix(in srgb,var(--text-muted) 38%,transparent) transparent;scrollbar-width:thin}::-webkit-scrollbar{width:10px;height:10px}::-webkit-scrollbar-thumb{border:3px solid transparent;border-radius:999px;background:color-mix(in srgb,var(--text-muted) 34%,transparent);background-clip:padding-box}.app-shell{display:grid;grid-template-columns:300px 84px minmax(0,1fr) 360px;grid-template-rows:minmax(66px,auto) minmax(0,1fr);width:100vw;height:100dvh;overflow:hidden}.topbar{grid-column:1 / -1;display:grid;grid-template-columns:300px 84px minmax(0,1fr) 360px;align-items:center;column-gap:0;row-gap:8px;min-width:0;padding:8px 12px;border-bottom:1px solid var(--line-strong);background:linear-gradient(180deg,var(--surface),var(--surface)),var(--chrome);box-shadow:0 1px color-mix(in srgb,var(--line) 70%,transparent) inset}.brand-lockup{grid-column:1;display:grid;grid-template-columns:38px minmax(0,1fr);gap:9px;align-items:center;min-width:0;padding:0}.brand-lockup strong,.brand-lockup small{display:block;line-height:var(--line-tight);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.brand-lockup strong{font-size:var(--font-size-title);font-weight:var(--weight-semibold)}.brand-lockup small{margin-top:3px;font-size:var(--font-size-small);color:var(--text-muted)}.logo-mark{display:grid;grid-template-columns:repeat(2,13px);gap:4px;align-items:center;justify-content:center;width:38px;height:38px;border:1px solid var(--line-strong);border-radius:8px;background:linear-gradient(180deg,var(--surface),var(--surface-muted))}.logo-mark span{width:13px;height:13px;border-radius:50%;box-shadow:inset -1px -1px 2px #0003,inset 1px 1px 2px #ffffff80}.logo-mark span:nth-child(1){background:#175e64}.logo-mark span:nth-child(2){background:#f3d247}.logo-mark span:nth-child(3){background:#c93a35}.logo-mark span:nth-child(4){background:#3f9e55}.topbar-params,.topbar-actions{display:flex;align-items:center;min-width:0}.topbar-workspace{grid-column:3;display:grid;grid-template-columns:max-content minmax(0,1fr);align-items:center;gap:10px;min-width:0;padding:0}.topbar-command-zone{display:flex;flex-wrap:nowrap;flex:1 1 auto;align-items:center;justify-content:flex-end;gap:10px;min-width:0;margin-left:0}.topbar-params{flex:0 1 auto;gap:6px;height:38px;padding:4px 5px 4px 9px;border:1px solid var(--line);border-radius:10px;background:var(--surface);box-shadow:0 1px color-mix(in srgb,var(--line) 72%,transparent) inset}.canvas-params{align-items:center}.topbar-control-label{display:inline-flex;align-items:center;height:30px;min-height:30px;padding:0 3px 0 0;border:0;background:transparent;color:var(--accent);font-size:var(--font-size-body);font-weight:var(--weight-semibold);white-space:nowrap}.topbar-dimension-group{display:grid;grid-template-columns:56px 18px 56px;align-items:center;min-height:30px;height:30px;overflow:hidden;border:1px solid var(--line);border-radius:8px;background:var(--surface)}.topbar-dimension-group input{width:56px;min-height:28px;height:28px;border:0;border-radius:0;background:transparent;color:var(--text);padding:0 4px;font-variant-numeric:tabular-nums;font-weight:var(--weight-medium);text-align:center}.topbar-dimension-group input+.size-times,.topbar-dimension-group .size-times+input{border-left:1px solid var(--line-soft)}.topbar-size-field{display:grid;grid-template-columns:auto 54px;align-items:center;min-height:30px;overflow:hidden;border:1px solid var(--line);border-radius:8px;background:var(--surface)}.topbar-size-field span{padding:0 8px;color:var(--accent);font-size:var(--font-size-body);font-weight:var(--weight-semibold);white-space:nowrap}.topbar-size-field input{width:54px;min-height:28px;border:0;border-left:1px solid var(--line-soft);border-radius:0;background:var(--surface);color:var(--text);padding:0 7px}.topbar-size-input{width:54px;min-height:30px;border:1px solid var(--line);border-radius:8px;background:var(--surface);color:var(--text);padding:0 7px}.topbar-params>select{width:104px;height:30px;min-height:30px;border:1px solid var(--line);border-radius:8px;background:var(--surface);color:var(--text);padding:0 7px}.canvas-preset-select{color:var(--text);font-weight:var(--weight-medium)}.canvas-apply-button{height:30px;min-height:30px;padding-inline:10px;border-color:color-mix(in srgb,var(--accent) 45%,transparent);background:var(--accent-soft);color:var(--accent);font-weight:var(--weight-semibold)}.canvas-apply-button:hover:not(:disabled){border-color:var(--accent);background:var(--accent-soft)}.topbar-select-field{display:grid;grid-template-columns:auto 82px;align-items:center;min-height:30px;overflow:hidden;border:1px solid var(--line);border-radius:8px;background:var(--surface)}.topbar-select-field span{padding:0 7px;color:var(--text-muted);font-size:var(--font-size-body);font-weight:var(--weight-semibold);white-space:nowrap}.topbar-select-field select{width:82px;min-height:28px;border:0;border-left:1px solid var(--line-soft);border-radius:0;background:var(--surface);padding:0 6px}.color-input{width:36px;height:30px;border:1px solid var(--line);border-radius:8px;background:var(--surface);padding:3px}.size-times{color:var(--text-muted);text-align:center}.topbar button,.topbar select{min-height:30px}.topbar button{border-radius:8px;padding:0 10px}.topbar-actions{flex:0 1 auto;flex-wrap:nowrap;gap:4px;min-height:38px;padding:4px;border:1px solid var(--line);border-radius:10px;background:var(--surface);box-shadow:0 1px color-mix(in srgb,var(--line) 72%,transparent) inset}.topbar-actions button{min-width:0;padding-inline:9px;white-space:nowrap;background:var(--surface)}.project-actions{gap:5px;padding-inline:5px;background:var(--surface)}.project-action-button{min-width:46px;height:30px;min-height:30px;padding-inline:10px;border-color:var(--line);background:var(--surface);color:var(--text);font-weight:var(--weight-medium)}.project-action-button.primary-action{border-color:color-mix(in srgb,var(--accent) 40%,transparent);color:var(--accent);font-weight:var(--weight-semibold)}.project-action-button.history-action{color:var(--text-muted)}.project-action-button:disabled{border-color:var(--line);background:var(--surface);color:var(--text-muted);opacity:1}.project-action-divider{width:1px;height:18px;margin:0 2px;background:var(--line)}.export-actions button{padding-inline:8px}.export-actions{gap:5px;padding-inline:5px;background:var(--surface);overflow:visible}.export-action-button{min-width:86px;height:30px;min-height:30px;padding:0 10px;border-color:var(--line);background:var(--surface);color:var(--text);font-size:var(--font-size-body);font-weight:var(--weight-semibold)}.export-action-button.primary-action{min-width:112px;border-color:var(--accent);background:var(--accent);color:#fff;box-shadow:0 1px color-mix(in srgb,var(--line) 22%,transparent) inset}.export-action-button.primary-action:hover:not(:disabled){border-color:var(--accent-hover);background:var(--accent-hover);color:#fff}.print-export-menu{position:relative}.print-export-menu:after{position:absolute;right:0;top:100%;width:292px;height:10px;content:""}.print-export-button{display:inline-flex;align-items:center;justify-content:center;gap:6px}.print-export-button svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}.print-export-popover{position:absolute;top:calc(100% + 8px);right:0;z-index:80;display:grid;gap:10px;width:292px;padding:12px;border:1px solid var(--line);border-radius:12px;background:var(--surface);box-shadow:var(--shadow-pop)}.print-export-popover-header{display:flex;align-items:center;justify-content:space-between;padding-bottom:2px}.print-export-popover-header strong{font-size:var(--font-size-title);font-weight:var(--weight-semibold)}.print-export-close{display:inline-flex;align-items:center;justify-content:center;flex:0 0 30px;width:30px;min-width:30px;height:30px;min-height:30px;max-width:30px;max-height:30px;padding:0;border-color:var(--line);border-radius:10px;background:linear-gradient(180deg,var(--surface),var(--surface-muted));color:var(--text);line-height:0;box-shadow:0 1px color-mix(in srgb,var(--line) 86%,transparent) inset,0 1px 2px #0000000f}.print-export-close svg{display:block;width:18px;height:18px;margin:0;fill:none;stroke:currentColor;stroke-width:2.35;stroke-linecap:round;stroke-linejoin:round}.print-export-close:hover:not(:disabled){border-color:color-mix(in srgb,var(--danger, #e9766b) 32%,transparent);background:linear-gradient(180deg,color-mix(in srgb,var(--danger, #e9766b) 10%,var(--surface)),color-mix(in srgb,var(--danger, #e9766b) 10%,var(--surface)));color:var(--danger, #e9766b)}.export-text-field{display:grid;gap:5px}.export-text-field span,.switch-row span{color:var(--text);font-size:var(--font-size-body);font-weight:var(--weight-semibold)}.export-text-field input{width:100%;height:34px;border:1px solid var(--line);border-radius:8px;background:var(--surface);padding:0 9px}.export-format-select{width:100%;height:34px;border:1px solid var(--line);border-radius:8px;background:var(--surface);color:var(--text);padding:0 9px;font-weight:var(--weight-semibold)}.export-submit-button{display:inline-flex;align-items:center;justify-content:center;width:100%;height:36px;border-color:var(--accent);border-radius:9px;background:var(--accent);color:#fff;font-weight:var(--weight-semibold)}.topbar .print-export-popover .export-submit-button{background:var(--accent);color:#fff}.export-submit-button:hover:not(:disabled){border-color:var(--accent-hover);background:var(--accent-hover);color:#fff}.switch-row{display:flex;align-items:center;justify-content:space-between;min-height:32px}.switch-row input{appearance:none;position:relative;width:42px;height:24px;border:0;border-radius:999px;background:var(--line-strong);cursor:pointer;transition:background-color .12s ease}.switch-row input:after{position:absolute;top:3px;left:3px;width:18px;height:18px;border-radius:50%;background:#fff;box-shadow:0 1px 3px #11182738;content:"";transition:transform .12s ease}.switch-row input:checked{background:var(--accent)}.switch-row input:checked:after{transform:translate(18px)}.topbar-right{grid-column:4;justify-self:end;display:flex;justify-content:flex-end;align-items:center;gap:8px;min-width:0;overflow:visible}.export-actions{flex:0 0 auto;width:max-content}.github-link{display:inline-flex;align-items:center;gap:6px;height:38px;padding:0 6px;border:0;border-radius:8px;background:transparent;color:var(--text);font-size:var(--font-size-body);font-weight:var(--weight-semibold);text-decoration:none;transition:background-color .12s ease,color .12s ease}.github-link:hover{background:var(--surface);color:var(--accent)}.github-link svg{width:19px;height:19px;fill:currentColor}.language-toggle{flex:0 0 auto;display:grid;grid-template-columns:repeat(2,36px);align-items:center;height:38px;padding:4px;border:1px solid var(--line);border-radius:8px;background:var(--surface);box-shadow:0 1px color-mix(in srgb,var(--line) 75%,transparent) inset}.language-toggle button{min-width:0;min-height:28px;padding:0;border-color:transparent;border-radius:8px;background:transparent;color:var(--text-muted);font-size:var(--font-size-small);font-weight:var(--weight-bold)}.language-toggle button.active{border-color:var(--accent);background:var(--accent);color:#fff}@media (max-width: 1500px){.topbar{grid-template-columns:minmax(178px,230px) 72px minmax(0,1fr) 360px;column-gap:0;padding-inline:10px}.brand-lockup{grid-template-columns:34px minmax(0,1fr);gap:7px}.brand-lockup>div{min-width:0}.brand-lockup strong{font-size:var(--font-size-body)}.brand-lockup small{font-size:var(--font-size-caption)}.logo-mark{grid-template-columns:repeat(2,11px);gap:3px;width:34px;height:34px}.logo-mark span{width:11px;height:11px}.topbar-workspace,.topbar-command-zone{gap:8px}.topbar-params{height:36px;padding:3px 4px 3px 7px}.topbar-dimension-group{grid-template-columns:46px 14px 46px}.topbar-dimension-group input{width:46px}.topbar-params>select{width:90px}.canvas-apply-button{padding-inline:8px}.project-action-button{min-width:40px;padding-inline:7px}.export-action-button{min-width:72px;padding-inline:7px}.export-action-button.primary-action{min-width:100px}.github-link{gap:5px;padding-inline:4px}.language-toggle{grid-template-columns:repeat(2,34px)}}.left-panel{display:flex;flex-direction:column;gap:12px;min-width:0;min-height:0;padding:12px;overflow:auto;border-right:1px solid var(--line-strong);background:linear-gradient(180deg,var(--surface),transparent),var(--panel-warm)}.left-card{display:grid;gap:12px;min-width:0;padding:10px;border:1px solid var(--line);border-radius:8px;background:var(--surface);box-shadow:var(--shadow-soft)}.preview-card{flex:0 0 auto}.image-card{flex:0 0 auto;align-content:start}.reference-card{flex:0 0 auto;gap:10px}.reference-switch{min-height:32px;padding:6px 9px;border:1px solid var(--line);border-radius:8px;background:var(--surface)}.reference-switch input{width:36px;height:20px}.reference-switch input:after{top:2px;left:2px;width:16px;height:16px}.reference-switch input:checked:after{transform:translate(16px)}.reference-switch span{color:var(--text);font-size:var(--font-size-body);font-weight:var(--weight-semibold)}.reference-opacity-field{display:grid;gap:6px;color:var(--text-muted);font-size:var(--font-size-small);font-weight:var(--weight-semibold)}.reference-opacity-field input[type=range]{min-height:24px;padding:0;border:0;background:transparent;accent-color:var(--accent)}.reference-adjust-row{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:8px;align-items:stretch}.reference-adjust-row .reference-switch{margin:0}.reference-reset-button{min-height:34px;padding:0 10px;border-color:var(--line);background:var(--surface);color:var(--text);font-size:var(--font-size-small);font-weight:var(--weight-semibold)}.reference-reset-button:hover:not(:disabled){border-color:color-mix(in srgb,var(--accent) 42%,transparent);color:var(--accent)}.reference-control-grid{display:grid;gap:8px}.reference-control-grid .stacked-field{gap:5px}.reference-placement-toggle{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:4px;padding:3px;border:1px solid var(--line-strong);border-radius:8px;background:var(--surface-muted)}.reference-placement-toggle button{min-height:30px;min-width:0;padding:0 8px;border-color:transparent;background:transparent;color:var(--text);font-size:var(--font-size-small);font-weight:var(--weight-semibold)}.reference-placement-toggle button:hover:not(:disabled){background:var(--accent-soft);color:var(--accent)}.reference-placement-toggle button.active{background:var(--accent);color:#fff}.reference-card input:disabled,.reference-card select:disabled,.reference-card button:disabled{cursor:default;opacity:.55}.reference-upload-zone{min-height:58px}.left-card-header{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:8px;align-items:start}.left-card-header div{display:grid;gap:2px;min-width:0}.left-card-header strong,.left-card-header span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.left-card-header strong{color:var(--text);font-size:var(--font-size-title);font-weight:var(--weight-semibold);line-height:var(--line-tight)}.left-card-header strong.field-label-with-help{display:flex;align-items:center;gap:5px}.left-card-header strong.field-label-with-help .help-dot{flex:0 0 auto}.left-card-header span,.left-card-header small{color:var(--text-muted);font-size:var(--font-size-small)}.reference-card .left-card-header span{white-space:normal}.three-preview{position:relative;height:clamp(160px,22dvh,210px);min-height:0;overflow:hidden;border:1px solid var(--line);border-radius:8px;background:var(--surface-muted)}.three-preview canvas{display:block;width:100%;height:100%;cursor:grab;touch-action:none}.three-preview canvas:active{cursor:grabbing}.three-preview-empty{position:absolute;inset:0;z-index:1;display:grid;place-items:center;align-content:center;gap:10px;padding:18px;color:var(--text-muted);text-align:center;pointer-events:none}.three-preview-empty-icon{display:grid;grid-template-columns:repeat(2,12px);gap:5px;opacity:.72}.three-preview-empty-icon span{width:12px;height:12px;border-radius:999px;background:color-mix(in srgb,var(--text-muted) 22%,transparent);box-shadow:inset 0 0 0 1px color-mix(in srgb,var(--line) 20%,transparent)}.three-preview-empty-icon span:nth-child(2){background:color-mix(in srgb,var(--accent) 50%,transparent)}.three-preview-empty-icon span:nth-child(3){background:#ffcd4f85}.three-preview-empty p{max-width:140px;margin:0;font-size:var(--font-size-small);line-height:var(--line-normal)}.preview-expand-button{position:absolute;right:8px;bottom:8px;z-index:1;display:grid;place-items:center;width:34px;min-width:34px;height:34px;min-height:34px;padding:0;border-color:var(--line);border-radius:8px;background:var(--surface);color:var(--accent);backdrop-filter:blur(10px);box-shadow:0 4px 14px #0000001f}.preview-expand-button svg{width:19px;height:19px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}.three-preview-modal{position:fixed;inset:0;z-index:40;display:grid;place-items:center;padding:28px;background:#00000085;backdrop-filter:blur(14px)}.three-preview-modal-panel{display:grid;grid-template-rows:auto minmax(0,1fr);width:min(1120px,calc(100vw - 56px));height:min(780px,calc(100vh - 56px));overflow:hidden;border:1px solid var(--line);border-radius:14px;background:var(--surface-muted);box-shadow:var(--shadow-pop)}.three-preview-modal-bar{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px 14px;border-bottom:1px solid var(--line);background:var(--surface-muted);color:var(--text)}.three-preview-modal-bar strong{font-size:var(--font-size-title);font-weight:var(--weight-semibold)}.three-preview-modal-bar button{min-height:32px}.three-preview-modal-stage{position:relative;min-width:0;min-height:0}.three-preview-modal-stage canvas{display:block;width:100%;height:100%;cursor:grab;touch-action:none}.three-preview-modal-stage canvas:active{cursor:grabbing}.upload-zone{display:grid;grid-template-columns:minmax(0,auto) minmax(0,auto);justify-content:center;gap:10px;align-content:center;align-items:center;min-height:72px;width:100%;border-style:dashed;border-color:var(--accent);background:var(--surface-cool);color:var(--accent);text-align:center}.upload-zone.has-image{grid-template-columns:42px minmax(0,1fr);justify-content:stretch;text-align:left}.upload-zone img{flex:0 0 auto;width:42px;height:42px;object-fit:cover;border:1px solid var(--line);border-radius:7px;background:var(--surface)}.upload-zone strong,.upload-zone span{min-width:0}.upload-zone-text{display:grid;min-width:0;gap:3px;justify-items:center}.upload-zone.has-image .upload-zone-text{justify-items:start}.upload-zone strong,.upload-zone-text>span{max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.upload-zone.has-image strong,.upload-zone.has-image .upload-zone-text>span{display:block}.upload-zone.is-generating{position:relative;overflow:hidden;border-color:color-mix(in srgb,var(--accent) 38%,transparent);background:linear-gradient(90deg,transparent,var(--accent-soft),transparent),var(--surface-cool);background-size:220% 100%;animation:uploadGenerating 1.1s ease-in-out infinite}.upload-zone.is-generating:after{position:absolute;inset:auto 10px 9px;height:2px;border-radius:999px;background:linear-gradient(90deg,var(--accent-soft),color-mix(in srgb,var(--accent) 72%,transparent),var(--accent-soft));content:""}@keyframes uploadGenerating{0%{background-position:120% 0}to{background-position:-120% 0}}.upload-zone strong{font-size:var(--font-size-control);font-weight:var(--weight-semibold);line-height:var(--line-tight)}.upload-zone span{color:var(--text-muted);font-size:var(--font-size-small)}.field-label-with-help{display:flex;align-items:center;gap:5px}.help-dot{position:relative;display:inline-grid;place-items:center;width:16px;height:16px;border:1px solid color-mix(in srgb,var(--accent) 32%,transparent);border-radius:999px;background:var(--accent-soft);color:var(--accent);font-size:11px;font-weight:700;line-height:1;cursor:default;outline:none}.help-dot:after{position:absolute;left:calc(100% + 9px);top:50%;z-index:20;width:176px;padding:7px 9px;border:1px solid var(--line);border-radius:8px;background:var(--surface);box-shadow:0 10px 24px #00000024;color:var(--text);content:attr(data-tooltip);font-size:12px;font-weight:var(--weight-regular);line-height:1.45;opacity:0;pointer-events:none;text-align:left;transform:translate(-4px,-50%);transition:opacity .12s ease,transform .12s ease}.help-dot:before{position:absolute;left:calc(100% + 5px);top:50%;z-index:21;width:8px;height:8px;border-left:1px solid var(--line);border-bottom:1px solid var(--line);background:var(--surface);content:"";opacity:0;pointer-events:none;transform:translate(-4px,-50%) rotate(45deg);transition:opacity .12s ease,transform .12s ease}.help-dot:hover:after,.help-dot:hover:before,.help-dot:focus-visible:after,.help-dot:focus-visible:before{opacity:1;transform:translateY(-50%)}.help-dot:focus-visible{box-shadow:0 0 0 3px color-mix(in srgb,var(--accent) 12%,transparent)}.help-dot.mini{width:14px;height:14px;font-size:10px}.help-dot.mini:after{width:190px}.image-card .image-help-dot:after,.image-card .image-help-dot:before{display:none}.floating-help-tooltip{position:fixed;z-index:1000;width:172px;max-width:calc(100vw - 24px);padding:7px 9px;border:1px solid var(--line);border-radius:8px;background:var(--surface);box-shadow:0 10px 24px #00000024;color:var(--text);font-size:12px;font-weight:var(--weight-regular);line-height:1.45;overflow-wrap:break-word;pointer-events:none;text-align:left;transform:translateY(-50%)}.floating-help-tooltip:before{position:absolute;left:-5px;top:50%;width:8px;height:8px;border-left:1px solid var(--line);border-bottom:1px solid var(--line);background:var(--surface);content:"";transform:translateY(-50%) rotate(45deg)}.image-field-grid{display:grid;grid-template-columns:1fr;gap:10px}.image-field-grid label,.stacked-field{display:grid;gap:6px;color:var(--text-muted);font-size:var(--font-size-small);font-weight:var(--weight-semibold)}.image-field-grid input,.image-field-grid select,.stacked-field input,.stacked-field select{width:100%;min-height:34px;border:1px solid var(--line-strong);border-radius:7px;background:var(--surface);color:var(--text);padding:0 8px}.image-field-grid input[type=range]{min-height:24px;padding:0;border:0;background:transparent;accent-color:var(--accent)}.color-input.wide{width:100%;height:34px;padding:4px}.tool-rail{position:relative;z-index:4;display:grid;align-content:start;gap:7px;padding:10px 6px;border-right:1px solid var(--line-strong);background:linear-gradient(180deg,var(--surface),transparent),var(--surface-muted)}.right-click-toggle{display:grid;gap:5px;width:100%;margin-bottom:0;padding:6px;border:1px solid var(--line);border-radius:9px;background:var(--surface)}.right-click-toggle>span{justify-content:center;color:var(--text-muted);font-size:var(--font-size-small);font-weight:var(--weight-semibold);line-height:1;text-align:center}.right-click-toggle div{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:3px}.right-click-toggle button{min-height:26px;min-width:0;padding:0;border-color:transparent;border-radius:7px;background:transparent;color:var(--text);font-size:var(--font-size-small);font-weight:var(--weight-semibold)}.image-field-grid .image-number-field{grid-template-columns:minmax(0,1fr) 96px;align-items:center}.image-range-field>span{display:flex;align-items:center;justify-content:space-between;gap:8px}.image-range-field strong{color:var(--text);font-size:var(--font-size-small);font-weight:var(--weight-semibold)}.right-click-toggle button:hover:not(:disabled){border-color:color-mix(in srgb,var(--accent) 18%,transparent);background:var(--surface);color:var(--accent)}.right-click-toggle button.active{border-color:var(--accent);background:var(--accent);color:#fff}.right-click-toggle button.active:hover:not(:disabled){border-color:var(--accent);background:var(--accent);color:#fff}.right-click-toggle.compact{padding:0;border:0;background:transparent}.right-click-toggle.remove-scope-toggle{gap:8px}.right-click-toggle.remove-scope-toggle>span{padding-bottom:6px;border-bottom:1px solid var(--line);color:var(--text-muted)}.right-click-toggle.remove-scope-toggle div{grid-template-columns:1fr;gap:6px}.right-click-toggle.remove-scope-toggle button{min-height:30px;padding:0 12px;border:1px solid var(--line);border-radius:8px;background:var(--surface);justify-content:center}.right-click-toggle.remove-scope-toggle button.active{border-color:var(--accent);background:var(--accent);box-shadow:0 6px 14px color-mix(in srgb,var(--accent) 16%,transparent)}.tool-button{position:relative;display:grid;justify-items:center;align-content:center;gap:4px;width:72px;height:58px;padding:6px 7px;border-color:transparent;background:transparent;color:var(--text);box-shadow:none;transition:background-color 70ms ease,border-color 70ms ease,color 70ms ease,box-shadow 70ms ease,transform 45ms ease}.tool-button:before{content:"";position:absolute;left:4px;top:50%;width:4px;height:24px;border-radius:999px;background:transparent;transform:translateY(-50%)}.tool-button:hover:not(:disabled){border-color:var(--line-strong);background:var(--surface)}.tool-button:active{transform:translateY(1px) scale(.98)}.tool-button svg{width:23px;height:23px;fill:none;stroke:currentColor;stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round}.tool-button span{max-width:100%;overflow:hidden;font-size:var(--font-size-small);font-weight:var(--weight-semibold);line-height:var(--line-tight);text-align:center;white-space:nowrap}.tool-button.active,.segmented button.active{border-color:var(--accent);background:var(--accent);color:#fff}.tool-button.active{box-shadow:0 0 0 1px color-mix(in srgb,var(--accent) 18%,transparent),inset 0 1px color-mix(in srgb,var(--line) 16%,transparent)}.tool-button.active:before{background:var(--gold)}.tool-button.active:hover{border-color:var(--accent);background:var(--accent)}.tool-button:focus-visible{outline:3px solid color-mix(in srgb,var(--accent) 28%,transparent);outline-offset:2px}.tool-options{position:absolute;left:calc(100% + 8px);top:75px;z-index:8;display:grid;gap:8px;width:148px;margin-top:0;padding:9px;border:1px solid var(--line);border-radius:9px;background:var(--surface);box-shadow:0 12px 28px #0000001f}.pencil-options{top:10px}.eraser-options{top:75px}.remove-options{top:205px}.move-options{top:400px}.copy-options{top:465px}.paste-options{top:530px}.mirror-options{top:595px}.shape-options{top:660px;width:184px;gap:8px;padding:9px}.text-options{top:725px;width:184px}.tool-options-close{display:inline-flex;align-items:center;justify-content:center;flex:0 0 24px;width:24px;min-width:24px;height:24px;min-height:24px;padding:0;border-color:var(--line);border-radius:8px;color:var(--text)}.tool-options-close svg{width:15px;height:15px;fill:none;stroke:currentColor;stroke-width:2.2;stroke-linecap:round;stroke-linejoin:round}.pan-options{top:790px;width:168px}.tool-options:before{position:absolute;left:-5px;top:24px;width:9px;height:9px;border-left:1px solid var(--line);border-bottom:1px solid var(--line);background:var(--surface);content:"";transform:rotate(45deg)}.tool-options-header{display:flex;align-items:baseline;justify-content:space-between;gap:8px;color:var(--text);font-size:var(--font-size-small);font-weight:var(--weight-semibold)}.tool-options-header strong{color:var(--text);font-size:var(--font-size-body);font-weight:var(--weight-semibold)}.brush-preview{display:grid;place-items:center;height:38px;border:1px solid var(--line);border-radius:8px;background:var(--surface)}.brush-preview span{display:block;border:1.5px dashed var(--line);border-radius:999px;background:var(--surface);box-shadow:0 0 0 1px color-mix(in srgb,var(--line) 75%,transparent) inset}.brush-preview .brush-preview-dot{width:3px;height:3px;border:0;background:var(--text);box-shadow:none}.tool-options input[type=range]{width:100%;accent-color:var(--accent)}.tool-hint{margin:0;padding:7px 8px;border:1px solid color-mix(in srgb,var(--accent) 16%,transparent);border-radius:8px;background:var(--accent-soft);color:var(--text-muted);font-size:var(--font-size-tiny);font-weight:var(--weight-regular);line-height:var(--line-snug)}.clipboard-options{width:150px;gap:8px}.clipboard-tool-header{display:flex;align-items:center;justify-content:space-between;gap:8px;color:var(--text)}.clipboard-tool-header>div{display:grid;min-width:0;gap:2px}.clipboard-tool-header strong{font-size:var(--font-size-small);font-weight:var(--weight-semibold)}.clipboard-tool-header span{overflow:hidden;color:var(--text-muted);font-size:var(--font-size-tiny);white-space:nowrap;text-overflow:ellipsis}.clipboard-reset-button{display:grid;flex:0 0 auto;place-items:center;width:26px;height:26px;min-height:0;padding:0;border-radius:8px;color:var(--accent)}.clipboard-reset-button svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round}.clipboard-reset-button:disabled{color:var(--text-muted);cursor:default}.clipboard-preview{display:grid;justify-content:center;align-content:center;min-height:68px;max-height:92px;padding:7px;overflow:hidden;border:1px solid var(--line);border-radius:8px;background:linear-gradient(45deg,color-mix(in srgb,var(--line) 28%,transparent) 25%,transparent 25%),linear-gradient(-45deg,color-mix(in srgb,var(--line) 28%,transparent) 25%,transparent 25%),var(--surface);background-size:10px 10px}.clipboard-preview span{border-radius:999px;box-shadow:0 0 0 .5px #00000014}.clipboard-empty{min-height:54px;display:grid;place-items:center;padding:8px;border:1px dashed color-mix(in srgb,var(--accent) 34%,transparent);border-radius:8px;background:var(--accent-soft);color:var(--text-muted);font-size:var(--font-size-small);line-height:var(--line-snug);text-align:center}.clipboard-mode-toggle{gap:6px}.clipboard-mode-toggle>div{gap:5px}.clipboard-mode-toggle button{min-height:30px}.compact-hint{padding:6px 7px;font-size:var(--font-size-tiny)}.text-tool-field{display:grid;gap:6px;color:var(--text);font-size:var(--font-size-small);font-weight:var(--weight-semibold)}.text-tool-field span{color:var(--text-muted);text-align:center}.text-tool-field .text-field-title{position:relative;display:grid;align-items:center;justify-content:center;min-height:24px;color:var(--text-muted);font-size:var(--font-size-small);font-weight:var(--weight-semibold)}.text-field-title .tool-options-close{position:absolute;right:0}.text-tool-field input{width:100%;height:34px;padding:0 9px;border:1px solid var(--line);border-radius:8px;background:var(--surface);color:var(--text);font-size:var(--font-size-body);font-weight:var(--weight-semibold)}.tool-number-field{display:inline-flex;align-items:center;gap:3px;color:var(--text);font-size:var(--font-size-small);font-weight:var(--weight-semibold)}.tool-number-field input{width:40px;height:24px;padding:0 4px;border:1px solid var(--line);border-radius:7px;background:var(--surface);color:var(--text);font:inherit;text-align:right}.shape-picker{display:grid;gap:8px;padding-top:0}.shape-picker>span{justify-self:center;color:var(--text-muted);font-size:var(--font-size-small);font-weight:var(--weight-semibold);line-height:var(--line-tight)}.shape-picker>div{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:6px}.shape-picker.arrow-picker>div{grid-template-columns:1fr}.shape-picker button{display:grid;grid-template-columns:18px minmax(0,1fr);align-items:center;gap:5px;min-height:34px;padding:6px 7px;border:1px solid var(--line);border-radius:8px;background:var(--surface);color:var(--text);font-size:var(--font-size-small);font-weight:var(--weight-semibold);text-align:center;line-height:var(--line-tight)}.shape-picker button span{min-width:0;text-align:center}.shape-picker button:hover{border-color:color-mix(in srgb,var(--accent) 38%,transparent);background:var(--accent-soft)}.shape-picker button.active{border-color:var(--accent);background:var(--accent);color:#fff}.shape-picker button:disabled,.shape-picker button:disabled:hover,.right-click-toggle button:disabled,.right-click-toggle button:disabled:hover{border-color:var(--line);background:var(--surface);color:var(--text-muted);cursor:default}.shape-picker svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round}.shape-options .right-click-toggle.compact{gap:5px;padding-bottom:0;border-bottom:1px solid var(--line)}.shape-options .right-click-toggle>span{justify-content:center;color:var(--text-muted);font-size:var(--font-size-small);font-weight:var(--weight-semibold)}.shape-options .right-click-toggle>div{gap:5px}.shape-options .right-click-toggle button{min-height:32px;font-size:var(--font-size-small);font-weight:var(--weight-semibold)}.shape-picker.arrow-picker{padding-top:2px;border-top:1px solid var(--line)}.shape-picker.arrow-picker button{min-height:32px}.workspace{position:relative;min-width:0;min-height:0;background:var(--surface-muted)}.canvas{display:block;width:100%;height:100%;touch-action:none}.canvas[data-tool=pencil]{cursor:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='28' height='28' viewBox='0 0 28 28'%3E%3Cpath fill='white' stroke='%23111827' stroke-width='1.5' d='M5 22l1.4-5.4L18.8 4.2a2 2 0 0 1 2.8 0l2.2 2.2a2 2 0 0 1 0 2.8L11.4 21.6z'/%3E%3Cpath fill='%2317656a' d='M6.4 16.6 11.4 21.6 5 23z'/%3E%3C/svg%3E") 5 22,crosshair}.canvas[data-tool=eraser]{cursor:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='28' height='28' viewBox='0 0 28 28'%3E%3Cpath fill='white' stroke='%23111827' stroke-width='1.5' d='M5.2 16.5 14.7 7a2.4 2.4 0 0 1 3.4 0l4 4a2.4 2.4 0 0 1 0 3.4l-6.8 6.8H9.9l-4.7-4.7z'/%3E%3Cpath stroke='%2317656a' stroke-width='1.6' d='M10.2 11.5l6.3 6.3M9.8 21.2h13'/%3E%3C/svg%3E") 7 20,cell}.canvas[data-tool=fill]{cursor:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='28' height='28' viewBox='0 0 28 28'%3E%3Cpath fill='white' stroke='%23111827' stroke-width='1.5' d='M6 14.5 14.5 6l7.5 7.5-7 7a2.3 2.3 0 0 1-3.3 0L6 14.8z'/%3E%3Cpath stroke='%2317656a' stroke-width='1.6' d='m10 10-3-3'/%3E%3Cpath fill='%2317656a' d='M21.2 19c1.1 1.5 1.7 2.6 1.7 3.3a2.2 2.2 0 0 1-4.4 0c0-.7.6-1.8 1.7-3.3a.6.6 0 0 1 1 0z'/%3E%3C/svg%3E") 7 18,copy}.canvas[data-tool=remove]{cursor:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='28' height='28' viewBox='0 0 28 28'%3E%3Cpath fill='white' stroke='%23111827' stroke-width='1.5' d='M6 14.5 14.5 6l7.5 7.5-7 7a2.3 2.3 0 0 1-3.3 0L6 14.8z'/%3E%3Cpath stroke='%2317656a' stroke-width='1.6' d='m10 10-3-3'/%3E%3Cpath stroke='%23c24132' stroke-width='2' stroke-linecap='round' d='m19 19 4 4m0-4-4 4'/%3E%3C/svg%3E") 7 18,not-allowed}.canvas[data-tool=eyedropper]{cursor:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='28' height='28' viewBox='0 0 28 28'%3E%3Cpath fill='white' stroke='%23111827' stroke-width='1.5' d='m17.8 4.2 6 6-4.1 4.1-1.9-1.9-9.3 9.3H5.2v-3.3l9.3-9.3-1.5-1.5z'/%3E%3Cpath stroke='%2317656a' stroke-width='1.6' d='M5 24h8'/%3E%3C/svg%3E") 6 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var(--line);border-radius:999px;background:var(--surface);color:var(--text);font-size:var(--font-size-small)}.right-panel{display:flex;flex-direction:column;gap:12px;min-height:0;min-width:0;padding:12px;overflow:auto;overscroll-behavior:contain;background:linear-gradient(180deg,var(--surface),transparent),var(--panel)}.right-panel{border-left:1px solid var(--line-strong)}.right-tabs{display:grid;flex:0 0 auto;grid-template-columns:repeat(4,minmax(0,1fr));gap:6px;padding-bottom:10px;border-bottom:1px solid var(--line)}.right-tabs button{min-width:0;min-height:34px;padding:0 8px;font-size:var(--font-size-body);font-weight:var(--weight-semibold)}.right-tabs button.active{border-color:var(--accent);background:var(--accent);color:#fff}.panel-section{display:grid;align-content:start;gap:12px;min-width:0;padding-bottom:12px;border-bottom:1px solid var(--line-soft)}.panel-tab-body{min-height:0;min-width:0}.palette-section{display:flex;flex:0 0 auto;flex-direction:column;gap:10px;min-height:0}.palette-section .palette-grid{flex:0 0 auto;max-height:clamp(250px,36dvh,398px);min-height:0}.layers-section,.usage-section,.adjustment-section{flex:0 0 auto}.right-panel:has(.layers-section),.right-panel:has(.usage-section){overflow:hidden}.layers-section,.usage-section{display:flex;flex:1 1 auto;flex-direction:column;min-height:0;overflow:hidden}.panel-section h2{margin:0;font-size:var(--font-size-title);font-weight:var(--weight-semibold);line-height:var(--line-tight)}.panel-section label{display:grid;gap:6px;color:var(--text-muted);font-size:var(--font-size-body)}.panel-section input,.panel-section select{width:100%;min-height:34px;border:1px solid var(--line-strong);border-radius:6px;background:var(--surface);color:var(--text);padding:0 8px}.status-section{grid-template-columns:minmax(0,1fr) auto;align-items:center}.status-section div{display:grid;gap:4px;min-width:0}.status-section strong,.status-section 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28%,transparent);background:var(--surface)}.layer-row.dragging{opacity:.52}.layer-row.drag-over-before,.layer-row.drag-over-after{border-color:var(--accent);background:var(--accent-soft);box-shadow:0 0 0 2px color-mix(in srgb,var(--accent) 8%,transparent)}.layer-row.drag-over-before:before,.layer-row.drag-over-after:after{content:"";position:absolute;left:12px;right:12px;height:3px;border-radius:999px;background:var(--accent);box-shadow:0 0 0 3px color-mix(in srgb,var(--accent) 12%,transparent)}.layer-row.drag-over-before:before{top:-6px}.layer-row.drag-over-after:after{bottom:-6px}.layer-drag-handle{align-self:stretch;display:grid;place-items:center;width:16px;min-width:16px;min-height:54px;padding:0;border-color:transparent;background:transparent;color:var(--text-muted);cursor:grab}.layer-drag-handle:active{cursor:grabbing}.layer-drag-handle:hover:not(:disabled){border-color:transparent;background:transparent;color:var(--accent)}.layer-drag-handle svg{width:13px;height:19px;fill:none;stroke:currentColor;stroke-width:2.8;stroke-linecap:round}.layer-main{display:grid;gap:3px;min-width:0;min-height:0;padding:0;border:0;background:transparent;text-align:left}.layer-main-static{cursor:pointer}.layer-main:hover:not(:disabled){background:transparent}.layer-title-row{display:flex;align-items:center;min-width:0}.layer-main strong,.layer-main>span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.layer-main strong{display:flex;align-items:center;gap:4px;color:var(--text);font-size:13.5px;font-weight:650;line-height:1.2}.layer-main strong>span{min-width:0;color:var(--text);font-size:13.5px;font-weight:650;letter-spacing:0}.layer-rename-button{display:grid;flex:0 0 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svg{width:16px;height:16px}.studio-welcome-guide{display:flex;align-items:center;gap:6px;margin-top:13px;min-height:32px;padding:0 10px;border:1px solid var(--line);background:var(--panel);color:var(--text-muted);font-size:10px}.studio-welcome-guide svg{width:14px;height:14px}.image-card .generation-guidance{font-size:10px;line-height:1.8;margin:0;padding:10px;border:1px solid var(--line);border-radius:7px;color:var(--text-muted);background:var(--surface-muted)}.generation-guidance button{padding:0;min-height:24px;font-size:10px;color:var(--accent);border:0;background:transparent}@media (max-width:1180px){.studio-guide-button span{display:none}.studio-guide-button{width:30px;justify-content:center}}@media (max-width:760px){.beginner-guide{width:calc(100vw - 20px);height:calc(100dvh - 24px - env(safe-area-inset-top) - env(safe-area-inset-bottom));border-radius:14px}.guide-header{padding:15px;gap:10px}.guide-header h2{font-size:17px}.guide-heading-icon{width:32px;height:32px}.guide-eyebrow{font-size:8px}.guide-reading-progress{padding:4px 7px;font-size:9px}.guide-close{min-height:40px;width:34px}.guide-tabs{padding:8px;gap:2px}.guide-tabs button{flex:1;padding:0 5px;font-size:11px;min-height:40px}.guide-content{padding:18px 14px}.guide-intro h3,.guide-section-heading h3{font-size:22px}.guide-intro-badge{display:none}.guide-card-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.guide-step-card summary{padding:14px}.guide-step-card h4,.guide-manual-card h4{font-size:13px}.guide-card-body{padding:0 14px 14px}.guide-step-card[open]{grid-column:1 / -1}.guide-card-actions button{min-height:42px;font-size:12px}.guide-read-check{min-height:40px;font-size:12px}.guide-read-check input{width:17px;height:17px}.guide-manual-card{padding:14px}.guide-manual-card button:not(.guide-text-button){min-height:40px}.guide-parameter-grid{grid-template-columns:1fr}.guide-search input{min-height:44px;font-size:16px}.guide-filters button{min-height:38px}.guide-footer{padding:10px 14px;font-size:9px}.guide-faq-list summary{font-size:12px;line-height:1.8}.guide-reader-toolbar{padding:10px 12px;flex-wrap:wrap;gap:9px}.guide-reader-toolbar label{width:100%;justify-content:space-between}.guide-reader-toolbar select{min-height:40px;font-size:14px}.guide-reader-toolbar>div{width:100%}.guide-reader-toolbar button{flex:1;min-height:40px;font-size:10px;padding:0 7px}}@media (max-width:370px){.guide-card-grid{grid-template-columns:1fr}}