diff --git a/apps/worker/worker_app/tasks/viral_video.py b/apps/worker/worker_app/tasks/viral_video.py
index c030b137c..47dae07e7 100644
--- a/apps/worker/worker_app/tasks/viral_video.py
+++ b/apps/worker/worker_app/tasks/viral_video.py
@@ -380,8 +380,7 @@ def _normalize_image_url(raw: str, idx: int) -> str:
     # 用 HEAD 请求会返回 403 SignatureDoesNotMatch 误判 URL 无效，实际 GET 下载完全正常。
     # Range: bytes=0-1024 只取前1KB，开销极小。
     try:
-        _r = _req.get(url, timeout=5, allow_redirects=True, stream=True,
-                      headers={"Range": "bytes=0-1024"})
+        _r = _req.get(url, timeout=5, allow_redirects=True, stream=True, headers={"Range": "bytes=0-1024"})
         if _r.status_code >= 400:
             logger.warning("[爆款视频] 图片 #%d URL 可达性检查返回 %d: %s", idx, _r.status_code, url[:120])
         _r.close()
@@ -431,8 +430,10 @@ def _analyze_single_image(
         # 避免底层 max_retries=1 导致 lite timeout × 2 + pro timeout × 2 最坏 240s+
         _t0 = time.time()
         try:
-            from packages.shared.ai_client import get_doubao_client as _gdc
             import json as _json
+
+            from packages.shared.ai_client import get_doubao_client as _gdc
+
             _client = _gdc()
             _messages = [
                 {"role": "system", "content": system},