fix：文件预览报错

src/components/FilePreviewModal/index.tsx

@@ -89,7 +89,7 @@ export const FilePreviewModal: React.FC<FilePreviewModalProps> = ({ isOpen, onCl
             <DocxPreview
               key={docUrl} // 添加key确保组件重新挂载
               src={docUrl}
-              className="w-full min-h-full"
+              className="w-full"
               onRendered={handleDocumentRendered}
               onError={handleDocumentError}
             />