@font-face{font-family:"IBM Plex Sans";src:url("./assets/ibm-plex-sans-400.ttf") format("truetype");font-weight:400;font-style:normal;font-display:swap}
@font-face{font-family:"IBM Plex Sans";src:url("./assets/ibm-plex-sans-500.ttf") format("truetype");font-weight:500;font-style:normal;font-display:swap}
@font-face{font-family:"IBM Plex Sans";src:url("./assets/ibm-plex-sans-600.ttf") format("truetype");font-weight:600;font-style:normal;font-display:swap}
:root{
  --ground:#f4f6f8;--surface:#fff;--raised:#f4f6f8;--active:#ebedee;
  --border:#e8eaec;--rule:#f0f1f2;--control:#cdced1;--text:#131416;--muted:#5d5f60;
  --accent:#1b6c80;--primary:#1d1f20;--radius:6px;--pad:24px;--gap:24px;
  font-family:"IBM Plex Sans","Microsoft YaHei","PingFang SC",sans-serif;color:var(--text);background:var(--ground);
  font-size:14px;font-synthesis:none;font-weight:400;
}
*{box-sizing:border-box}body{margin:0}button,input,select{font:inherit}button,a,label,select,input{-webkit-tap-highlight-color:transparent}
button{cursor:pointer;color:var(--text);transition:background .15s,border-color .15s,transform .15s}button:hover{background:var(--active)}button:active{transform:translateY(1px)}
button:disabled{background:var(--active);color:var(--muted);cursor:wait}button:focus-visible,a:focus-visible,select:focus-visible,input:focus-visible,.dropzone:focus-visible,canvas:focus-visible{outline:2px solid var(--accent);outline-offset:3px}
.icon-defs{position:absolute;width:0;height:0;overflow:hidden}.icon{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;flex:none}
.app-header{height:64px;display:flex;align-items:center;padding:0 24px;gap:32px}.brand{display:flex;align-items:center;gap:12px;text-decoration:none;color:var(--text);font-weight:600;font-size:18px;white-space:nowrap}
.brand-mark{width:28px;height:28px;fill:none;stroke:var(--accent);stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}.workspace-name{color:var(--muted);font-size:12px}.local{margin-left:auto;display:flex;align-items:center;gap:8px;color:var(--muted);font-size:12px}
/* 1440px = 248px palette + 8px gap + 1176px white sheet + 8px inset.
   Sheet inner grid: 1126px = 842px preview + 24px gap + 260px inspector. */
.app-layout{display:grid;grid-template-columns:248px minmax(0,1fr);gap:8px;padding:0 8px 8px 0;min-height:calc(100svh - 64px)}
.source{padding:24px 20px;min-width:0}.tool-section+.tool-section{margin-top:32px}h2{font-size:16px;line-height:1.5;font-weight:600;margin:0 0 18px}
.dropzone{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:172px;border:1px dashed var(--control);border-radius:var(--radius);padding:18px 8px;cursor:pointer;line-height:1.8;background:var(--surface)}.dropzone:hover,.dropzone.drag{background:var(--active);border-color:var(--accent)}
.dropzone input{display:none}.dropzone strong{font-size:14px;font-weight:500;margin:12px 0 5px}.dropzone>span{font-size:12px;color:var(--muted)}.upload-icon{height:26px;width:26px;color:var(--muted)}
.file-info{font-size:12px;color:var(--muted);margin:12px 0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;line-height:1.7}.demo-button{width:100%;display:flex;justify-content:space-between;align-items:center;padding:0 10px;height:36px;background:transparent;border:1px solid var(--control);border-radius:var(--radius);font-size:12px}
.secondary,.reset-button{width:100%;display:flex;align-items:center;justify-content:center;gap:8px;height:38px;background:var(--surface);border:1px solid var(--control);border-radius:var(--radius);font-size:14px}
.status{font-size:12px;line-height:1.8;color:var(--muted);margin:12px 0 20px;min-height:44px;overflow-wrap:anywhere}.slider-label{font-size:14px;display:flex;justify-content:space-between;align-items:center;margin:0 0 12px}output{font-variant-numeric:tabular-nums;color:var(--muted);font-size:12px}
.zoom-row{display:flex;align-items:center;gap:12px}.icon-button{width:30px;height:30px;flex:none;background:var(--surface);border:1px solid var(--control);border-radius:var(--radius);font-size:18px;line-height:1}
input[type=range]{min-width:0;flex:1;width:100%;height:4px;accent-color:var(--text);cursor:pointer;margin:0}.reset-button{margin-top:20px;background:transparent;font-size:12px}.hint{font-size:12px;color:var(--muted);line-height:1.9;margin:16px 0 0}
.editor-sheet{background:var(--surface);border:1px solid var(--border);border-radius:16px;min-width:0;padding:24px;display:flex;flex-direction:column}
.editor-heading{display:flex;align-items:center;justify-content:space-between;margin-bottom:24px;gap:16px}h1{font-size:22px;line-height:1.4;font-weight:600;margin:0}.editor-heading p{font-size:14px;color:var(--muted);margin:8px 0 0}.document-kind{color:var(--muted);font-size:12px;white-space:nowrap}
.editor-body{display:grid;grid-template-columns:minmax(0,1fr) 260px;gap:24px;flex:1;min-height:0}
.preview-panel{display:flex;flex-direction:column;min-width:0;background:var(--raised);border-radius:8px;min-height:570px}
.preview-top{display:flex;justify-content:space-between;align-items:center;padding:16px 20px;font-size:12px;color:var(--muted)}.preview-top button{display:flex;gap:7px;align-items:center;height:32px;padding:0 10px;border:1px solid var(--control);border-radius:var(--radius);background:var(--surface);font-size:12px}.preview-top button[aria-pressed=true]{background:var(--active);border-color:var(--muted)}
.canvas-area{flex:1;display:flex;align-items:center;justify-content:center;padding:24px 32px;min-width:0;min-height:0}
#preview{display:block;width:min(100%,500px);height:auto;aspect-ratio:1;border-radius:50%;cursor:grab;touch-action:none}#preview:active{cursor:grabbing}
.preview-bottom{display:flex;justify-content:space-between;gap:16px;padding:20px;color:var(--muted);font-size:12px}.key-separator{margin:0 8px;color:var(--control)}
.settings{min-width:0;display:flex;flex-direction:column;padding-top:4px}.section-description{font-size:12px;color:var(--muted);line-height:1.7;margin:-8px 0 20px}.frame-options{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.frame-option{position:relative;min-width:0;padding:10px 8px 12px;border:1px solid var(--border);background:var(--surface);border-radius:8px;text-align:center}.frame-option canvas{display:block;width:100%;height:auto;aspect-ratio:1;max-width:100px;margin:0 auto 12px}.frame-option span{display:block;font-size:12px}.frame-option small{display:none}.frame-option .selected-check{display:none;position:absolute;right:6px;top:6px;width:18px;height:18px;background:var(--surface);border-radius:50%;color:var(--text)}.frame-option.selected{border:2px solid var(--text);padding:9px 7px 11px;background:var(--raised)}.frame-option.selected .selected-check{display:block}
.frame-description{font-size:12px;line-height:1.8;color:var(--muted);min-height:44px;margin:16px 0 0}
.export-section{border-top:1px solid var(--border);padding-top:24px;margin-top:24px}.field-label{display:block;font-size:14px;margin:0 0 10px}select{display:block;width:100%;height:40px;background:var(--surface);border:1px solid var(--control);border-radius:var(--radius);padding:0 10px;font-size:14px;color:var(--text);font-variant-numeric:tabular-nums}
.format{display:flex;justify-content:space-between;gap:8px;font-size:12px;margin:20px 0 24px}.format-note{color:var(--muted)}.primary{height:42px;display:flex;align-items:center;justify-content:center;gap:8px;background:var(--primary);color:var(--surface);border:1px solid var(--primary);border-radius:var(--radius);width:100%;font-size:14px;font-weight:500}.primary:hover{background:#36383a}.export-note{font-size:12px;line-height:1.8;color:var(--muted);text-align:center;margin:12px 0 0}
footer{display:flex;justify-content:space-between;gap:16px;font-size:12px;color:var(--muted);padding-top:20px}#facesWrap{margin-bottom:20px}#facesWrap label{font-size:12px;display:block;margin-bottom:8px}
@media(min-width:1700px){.app-layout{grid-template-columns:280px minmax(0,1fr)}.source{padding:24px 28px}.editor-body{grid-template-columns:minmax(0,1fr) 300px}#preview{width:min(100%,580px)}.frame-option canvas{max-width:115px}}
@media(max-width:1100px){.app-layout{grid-template-columns:220px minmax(0,1fr)}.source{padding:20px 16px}.editor-body{grid-template-columns:minmax(0,1fr);gap:24px}.settings{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:24px}.export-section{border-top:0;margin:0;padding:0}.preview-panel{min-height:400px}.canvas-area{padding:12px 28px}#preview{max-width:340px}.frame-option canvas{max-width:72px}.editor-sheet{padding:20px}.document-kind{display:none}footer{flex-wrap:wrap}.frame-description{min-height:0}}
@media(max-width:700px){.app-header{height:56px;padding:0 16px;gap:16px}.brand{font-size:16px;gap:8px}.brand-mark{width:24px;height:24px}.workspace-name{display:none}.local{font-size:12px;gap:5px}.local .icon{display:none}.app-layout{display:flex;flex-direction:column;padding:0;gap:0;min-height:calc(100svh - 56px)}.source{order:2;padding:24px 20px;background:var(--surface)}.editor-sheet{order:1;border:0;border-radius:0;padding:20px 20px 0}.editor-heading{margin-bottom:20px}h1{font-size:22px}.editor-heading p{font-size:14px}.editor-body{gap:24px}.preview-panel{min-height:0}.preview-top{padding:12px}.preview-top button{height:44px}.canvas-area{padding:12px 24px}#preview{width:100%;max-width:320px}.preview-bottom{padding:16px 12px;font-size:12px}.preview-bottom>span:first-child{display:none}.preview-bottom>span:last-child{margin:auto}.settings{display:block}.frame-options{grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.frame-option{padding:14px}.frame-option.selected{padding:13px}.frame-option canvas{max-width:100px}.frame-option span{font-size:14px}.export-section{border-top:1px solid var(--border);margin-top:24px;padding-top:24px}.source .tool-section+.tool-section{margin-top:24px}footer{display:none}.dropzone{min-height:152px}.dropzone strong{font-size:14px}.secondary,.reset-button,.demo-button,select,.primary{min-height:44px}.icon-button{height:44px;width:44px}.status{min-height:0}.hint{margin-bottom:0}.settings{padding:0}.export-note{text-align:left}.file-info{white-space:normal;overflow-wrap:anywhere}}
.mobile-upload{display:none}
@media(max-width:700px){
  .app-layout{background:var(--surface);padding:20px;gap:24px}
  .source,.editor-sheet,.editor-body{display:contents}
  .source>.tool-section:first-child{display:none}
  .editor-heading{order:0;margin:0;align-items:flex-start;gap:8px}
  .editor-heading p{max-width:210px;line-height:1.7}
  .mobile-upload{display:flex;align-items:center;justify-content:center;gap:6px;flex:none;min-height:44px;padding:0 10px;border:1px solid var(--control);border-radius:var(--radius);background:var(--surface);font-size:12px}
  .preview-panel{order:1}
  .source .adjustments{order:2;margin:0;padding:0}
  .adjustments .hint{display:none}
  .settings{order:3}
  .status{margin-bottom:16px}
}
@media(prefers-reduced-motion:reduce){*{transition:none!important}}