diff --git a/backend/main.py b/backend/main.py
index 07e2f3a..72123df 100644
--- a/backend/main.py
+++ b/backend/main.py
@@ -180,6 +180,13 @@ def enrich_attendance_with_leave(records, db):
             else:
                 r.status_code = "mixed_leave"
             r.status_text = leave_text
+        elif original_code in ("al", "sl", "cl"):
+            # Pure leave status: check if multiple leave types → upgrade to mixed
+            if len(leave_by_type) > 1:
+                r.status_code = "mixed_leave"
+                r.status_text = leave_text
+            else:
+                r.status_text = leave_text
         else:
             base = r.status_text or "正常"
             r.status_text = f"{base} + {leave_text}"