diff --git a/B07_DesignDetail/B07_DesignDetail_Router_Support.py b/B07_DesignDetail/B07_DesignDetail_Router_Support.py
index bc045ce5..f3b1972f 100644
--- a/B07_DesignDetail/B07_DesignDetail_Router_Support.py
+++ b/B07_DesignDetail/B07_DesignDetail_Router_Support.py
@@ -39,6 +39,24 @@ from B07_DesignDetail.B07_DesignDetail_Engine_Template import add_title_fields
 
 # 유역도 배경·파일 입출력 조각은 700줄 제한으로 떼어냈다(2026-09-04).
 # 여기서 그대로 다시 내보내 호출부(`B07_DesignDetail_Router.py`)의 import 경로는 불변이다.
+from B07_DesignDetail.B07_DesignDetail_Router_Support_Basin import (
+    CONTOUR_FILE as CONTOUR_FILE,
+)
+from B07_DesignDetail.B07_DesignDetail_Router_Support_Basin import (
+    STREAM_FILE as STREAM_FILE,
+)
+from B07_DesignDetail.B07_DesignDetail_Router_Support_Basin import (
+    _basins_crs as _basins_crs,
+)
+from B07_DesignDetail.B07_DesignDetail_Router_Support_Basin import (
+    _geojson_features as _geojson_features,
+)
+from B07_DesignDetail.B07_DesignDetail_Router_Support_Basin import (
+    _geojson_payload as _geojson_payload,
+)
+from B07_DesignDetail.B07_DesignDetail_Router_Support_Basin import (
+    _too_far_from_route as _too_far_from_route,
+)
 from B07_DesignDetail.B07_DesignDetail_Router_Support_Basin import (
     clip_line_to_box as clip_line_to_box,
 )