diff --git a/ui/static/graph.html b/ui/static/graph.html
index 29bda3a..cc72579 100644
--- a/ui/static/graph.html
+++ b/ui/static/graph.html
@@ -507,7 +507,7 @@
         </div>
         <div class="chat-input-area">
             <input type="text" id="chatInput" placeholder="输入消息..." autocomplete="off">
-            <button class="attach-btn" id="attachBtn" title="添加文件">📎</button>
+            <button class="attach-btn" id="attachBtn" title="添加文件"><i class="fas fa-paperclip"></i></button>
             <button id="chatSendBtn">发送</button>
         </div>
         <input type="file" id="fileInput" multiple style="display:none">