diff --git a/scripts/retrain_from_label_studio.sh b/scripts/retrain_from_label_studio.sh
index c51b004..7fabdcd 100755
--- a/scripts/retrain_from_label_studio.sh
+++ b/scripts/retrain_from_label_studio.sh
@@ -19,7 +19,7 @@ IMAGES="${LS_IMAGES_DIR:-$REPO/runs/boxes_shap_label_studio/images}"
 STAMP=$(date +%Y%m%d_%H%M)
 
 # 切片参数。改尺寸时这里与 configs/detect/film.yaml 的 imgsz 会一起生效（见第 4 步）
-TILE_SIZE="${TILE_SIZE:-160}"
+TILE_SIZE="${TILE_SIZE:-128}"
 TILE_OVERLAP="${TILE_OVERLAP:-32}"
 # >0.5 保证一个框最多出现在一片里，不会在相邻片各留一个残框
 MIN_VISIBILITY="${MIN_VISIBILITY:-0.6}"