diff --git a/scripts/ci/acr_cleanup.py b/scripts/ci/acr_cleanup.py
index 41170e587..8bcbbe17b 100755
--- a/scripts/ci/acr_cleanup.py
+++ b/scripts/ci/acr_cleanup.py
@@ -72,6 +72,7 @@ ACCEPT_MANIFEST_V2 = "application/vnd.docker.distribution.manifest.v2+json"
 
 # ========== Registry API ==========
 
+
 def get_token(repo, action="pull"):
     """获取仓库访问token"""
     scope = "repository:" + NAMESPACE + "/" + repo + ":" + action
@@ -201,6 +202,7 @@ def delete_manifest(repo, digest, token):
 
 # ========== Gitea API ==========
 
+
 def gitea_get_open_prs():
     """获取所有打开的PR编号列表"""
     if not GITEA_TOKEN:
@@ -249,6 +251,7 @@ def gitea_get_pr_commits(pr_number):
 
 # ========== 工具函数 ==========
 
+
 def parse_time(created_str):
     """解析ISO时间字符串"""
     if not created_str:
@@ -299,6 +302,7 @@ def is_in_protected_list(tag, protected_set):
 
 # ========== 核心清理逻辑 ==========
 
+
 def cleanup_repo(repo, keep_count, dry_run, protected_tags, pr_sha=None, pr_open_set=None):
     """
     清理单个仓库
@@ -335,7 +339,11 @@ def cleanup_repo(repo, keep_count, dry_run, protected_tags, pr_sha=None, pr_open
 
     # ========== PR-SHA模式：只删除指定commit的PR镜像 ==========
     if pr_sha:
-        pr_tags_to_del = [t for t in tags if t.startswith("pr-" + pr_sha) or t == "pr-" + pr_sha or pr_sha.startswith(extract_sha_from_pr_tag(t))]
+        pr_tags_to_del = [
+            t
+            for t in tags
+            if t.startswith("pr-" + pr_sha) or t == "pr-" + pr_sha or pr_sha.startswith(extract_sha_from_pr_tag(t))
+        ]
         if not pr_tags_to_del:
             print(f"  未找到PR镜像: pr-{pr_sha[:12]}")
             return len(tags), 0
@@ -472,10 +480,7 @@ def cleanup_repo(repo, keep_count, dry_run, protected_tags, pr_sha=None, pr_open
         # 白名单过滤：受保护的tag不删除
         if protected_tags:
             before = len(commit_to_delete)
-            commit_to_delete = [
-                t for t in commit_to_delete
-                if not is_in_protected_list(t["tag"], protected_tags)
-            ]
+            commit_to_delete = [t for t in commit_to_delete if not is_in_protected_list(t["tag"], protected_tags)]
             removed = before - len(commit_to_delete)
             if removed > 0:
                 print(f"  白名单保护: 跳过{removed}个运行中镜像")
@@ -492,10 +497,7 @@ def cleanup_repo(repo, keep_count, dry_run, protected_tags, pr_sha=None, pr_open
     # 再次过滤白名单（PR镜像也受白名单保护）
     if protected_tags:
         before = len(all_to_delete)
-        all_to_delete = [
-            t for t in all_to_delete
-            if not is_in_protected_list(t["tag"], protected_tags)
-        ]
+        all_to_delete = [t for t in all_to_delete if not is_in_protected_list(t["tag"], protected_tags)]
         removed = before - len(all_to_delete)
         if removed > 0:
             print(f"  白名单保护(PR镜像): 跳过{removed}个")
@@ -549,6 +551,7 @@ def _execute_delete(repo, to_delete, dry_run, total_tags):
 
 # ========== 主函数 ==========
 
+
 def main():
     parser = argparse.ArgumentParser(description="ACR镜像清理工具（增强版）")
     parser.add_argument("--keep", type=int, default=20, help="保留最近N个commit hash tag（默认20）")
@@ -556,10 +559,8 @@ def main():
     parser.add_argument("--execute", action="store_true", help="实际执行删除")
     parser.add_argument("--repo", type=str, default="", help="只清理指定仓库")
     parser.add_argument("--pr-sha", type=str, default="", help="PR关闭模式：删除指定commit sha的PR镜像")
-    parser.add_argument("--protected-tags", type=str, default="",
-                        help="受保护tag列表，逗号分隔（运行中镜像白名单）")
-    parser.add_argument("--skip-pr-check", action="store_true",
-                        help="跳过Gitea PR状态检查（纯按时间清理PR镜像）")
+    parser.add_argument("--protected-tags", type=str, default="", help="受保护tag列表，逗号分隔（运行中镜像白名单）")
+    parser.add_argument("--skip-pr-check", action="store_true", help="跳过Gitea PR状态检查（纯按时间清理PR镜像）")
     args = parser.parse_args()
 
     # 必须指定 --dry-run 或 --execute
@@ -632,8 +633,7 @@ def main():
     total_tags = 0
     for repo in repos_to_clean:
         count, deleted = cleanup_repo(
-            repo, args.keep, dry_run, protected_tags,
-            pr_sha=args.pr_sha, pr_open_set=pr_open_set
+            repo, args.keep, dry_run, protected_tags, pr_sha=args.pr_sha, pr_open_set=pr_open_set
         )
         total_tags += count
         total_deleted += deleted