fix

src/components/LabelDesigner.tsx

@@ -229,6 +229,13 @@ export const LabelDesigner: React.FC<LabelDesignerProps> = ({
     [template.variableDefaults]
   );
 
+  const showReferencePreview = useMemo(
+    () =>
+      !!template.previewReferenceBackground &&
+      template.enablePreviewReferenceBackground !== false,
+    [template.previewReferenceBackground, template.enablePreviewReferenceBackground]
+  );
+
   const localElementsRef = useRef<TemplateElement[] | null>(null);
   /** 交互开始时的元素快照：拖动底图分层、缩放节流重绘 */
   const [interactionSnapshot, setInteractionSnapshot] = useState<TemplateElement[] | null>(
@@ -1654,10 +1661,10 @@ export const LabelDesigner: React.FC<LabelDesignerProps> = ({
           <div
             ref={canvasRef}
             className={`absolute inset-0 shadow-[0_2px_20px_rgba(0,0,0,0.5)] select-none overflow-hidden ${
-              template.previewReferenceBackground ? '' : 'bg-white'
+              showReferencePreview ? '' : 'bg-white'
             }`}
           >
-            {template.previewReferenceBackground && (
+            {showReferencePreview && (
               <img
                 src={template.previewReferenceBackground}
                 alt=""
@@ -1681,7 +1688,7 @@ export const LabelDesigner: React.FC<LabelDesignerProps> = ({
                 rowData={null}
                 rowIndex={0}
                 showBorder={false}
-                transparentBackground={!!template.previewReferenceBackground}
+                transparentBackground={showReferencePreview}
                 variableDefaults={previewDefaults}
                 renderScale={canvasRenderScale}
               />