Update app.py

app.py

@@ -196,7 +196,9 @@ def render_assistant_message(thinking: str, answer: str, is_streaming: bool = Fa
     """渲染助手消息（左侧）"""
     thinking_html = ""
     if thinking:
-        escaped_thinking = thinking.replace("&", "&amp;").replace("<", "&lt;").replace(">", "&gt;")
+        # 去掉 <think> 标签
+        cleaned_thinking = thinking.replace("<think>", "").replace("</think>", "")
+        escaped_thinking = cleaned_thinking.replace("&", "&amp;").replace("<", "&lt;").replace(">", "&gt;")
         scroll_script = """<script>
             (function() {
                 var el = document.getElementById('thinking-stream');