diff --git a/app/main.py b/app/main.py
index 6ba53c1..761c096 100644
--- a/app/main.py
+++ b/app/main.py
@@ -212,6 +212,16 @@ class EmbeddingRequest(BaseModel):
     model: str = "text-embedding-bge-m3"
 
 
+# ③ -------- _encode() 里 worker 调用 --------
+def _worker(t, q):
+    try:
+        # out = model.encode(t, return_dense=True)   # GPU or CPU 均安全
+        out = model.encode(t, return_dense=True, num_processes=1)
+        q.put(("ok", out))
+    except Exception as e:
+        q.put(("err", str(e)))
+
+
 def _encode(texts: List[str]):
     """
     单次请求：
@@ -219,15 +229,6 @@ def _encode(texts: List[str]):
       2. 若子进程 OOM / CUDA Error → 同一次请求 fallback 到 CPU
     绝不改全局状态，其他并发请求不受影响
     """
-    # ③ -------- _encode() 里 worker 调用 --------
-    def _worker(t, q):
-        try:
-            # out = model.encode(t, return_dense=True)   # GPU or CPU 均安全
-            out = model.encode(t, return_dense=True, num_processes=1)
-            q.put(("ok", out))
-        except Exception as e:
-            q.put(("err", str(e)))
-
     q = mp.Queue()
     p = mp.Process(target=_worker, args=(texts, q))
     p.start()