hi

app.py

@@ -352,6 +352,11 @@ class RagPipeline:
         log.info(f"===== 處理新查詢: '{q_orig}' =====")
         try:
             drug_ids = self._find_drug_ids_from_name(q_orig)
+
+            if not drug_ids:
+                log.info("未從查詢中找到相關藥名，直接返回預設訊息。")
+                return f"未從查詢中找到相關藥名，無法回答您的問題。{DISCLAIMER}"
+            
             log.info(f"步驟 1/5: 找到藥品 ID: {drug_ids}，耗時: {time.time() - start_time:.2f} 秒")
             step_start = time.time()