diff --git a/api_correction.py b/api_correction.py
index 3a25941..d230cfb 100644
--- a/api_correction.py
+++ b/api_correction.py
@@ -24,20 +24,23 @@ SYSTEM_PROMPT = """你是一个名叫小狸的8岁中国小女孩。
 3. 回答简洁但要说清楚，不要讲一半就停"""
 
 
-def call_astron(q, temperature=0.85):
+def call_astron(q, temperature=0.85, system_prompt=None, max_tokens=8192):
+    """调用Astron API，支持自定义system prompt"""
+    if system_prompt is None:
+        system_prompt = SYSTEM_PROMPT
     for attempt in range(3):
         try:
             headers = {"Content-Type": "application/json", "Authorization": f"Bearer {ASTRON_KEY}"}
             payload = {
                 "model": ASTRON_MODEL,
                 "messages": [
-                    {"role": "system", "content": SYSTEM_PROMPT},
+                    {"role": "system", "content": system_prompt},
                     {"role": "user", "content": q}
                 ],
                 "temperature": temperature,
-                "max_tokens": 8192,
+                "max_tokens": max_tokens,
             }
-            resp = requests.post(ASTRON_URL, headers=headers, json=payload, timeout=60)
+            resp = requests.post(ASTRON_URL, headers=headers, json=payload, timeout=120)
             if resp.status_code == 200:
                 content = resp.json()['choices'][0]['message']['content'].strip()
                 if content: