diff --git a/frontend/.env.production b/frontend/.env.production
new file mode 100644
index 0000000..22feb0f
--- /dev/null
+++ b/frontend/.env.production
@@ -0,0 +1,2 @@
+# 生产构建始终走真实后端 API（mock 仅用于开发期联调）
+VITE_USE_MOCK=false
\ No newline at end of file