优化蒙版

src/components/LabelDesigner.tsx

@@ -1636,9 +1636,7 @@ export const LabelDesigner: React.FC<LabelDesignerProps> = ({
                 >
                   <div
                     data-drag-float-placeholder={el.id}
-                    className={`absolute inset-0 bg-white shadow-[0_1px_4px_rgba(0,0,0,0.12)]${
-                      dragMultiSelectionBounds ? '' : ' border border-[#31a8ff]/40'
-                    }`}
+                    className="absolute inset-0 bg-white shadow-[0_1px_4px_rgba(0,0,0,0.12)]"
                   />
                   <img
                     ref={(node) => {
@@ -1672,6 +1670,12 @@ export const LabelDesigner: React.FC<LabelDesignerProps> = ({
                       if (placeholder) placeholder.style.display = 'none';
                     }}
                   />
+                  {selectedElementIds.length === 1 && (
+                    <div
+                      className="absolute inset-0 ps-resize-outline pointer-events-none z-[3]"
+                      aria-hidden
+                    />
+                  )}
                 </div>
               );
               })}