.cad-toolbar{flex-wrap:wrap;position:sticky;top:0;z-index:1;background:#edf1f4;padding:8px}.cad-toolbar select{max-width:220px;min-height:34px;border:1px solid #ccd9e5;border-radius:4px;color:#002d72}.cad-note,.cad-warning{font-size:11px;line-height:1.6;margin:0 0 10px}.cad-warning{background:#fff3d8;color:#775313;padding:8px;border-left:3px solid #c78a23}.preview-canvas{overflow:auto;width:100%;min-height:180px;flex-shrink:0}.preview-canvas img{display:block;object-fit:contain;background:white}.preview-canvas img[hidden]{display:none}@media(max-width:760px){.cad-toolbar{gap:6px}.cad-toolbar select{max-width:150px}}