add

fs-service/src/main/java/com/fs/course/service/impl/FsCourseLinkServiceImpl.java

@@ -389,7 +389,7 @@ public class FsCourseLinkServiceImpl implements IFsCourseLinkService
                         domainName = config.getRealLinkDomainName();
                     }
                     String realLink = domainName+courseLink.getRealLink();
-                    String imgUrl = "https://fs-1346741853.cos.ap-chengdu.myqcloud.com/fs/20250323/6189704f2e134b84ad9c9e7c9999f103.jpg";
+                    String imgUrl = "https://jiuzhouzaixian.obs.cn-southwest-2.myhuaweicloud.com/fs/20250428/1745804256631.png";
                     return R.ok().put("realLink",realLink ).put("config",config).put("headerImg",imgUrl);
                 }
             } else {