diff --git a/static/public/aibox.html b/static/public/aibox.html
index e8b01da..e7700c6 100644
--- a/static/public/aibox.html
+++ b/static/public/aibox.html
@@ -32,6 +32,7 @@
 </aside>
 <div id="backdrop"></div>
 <script src="js/markdown-it-12_0_0.js"></script>
+<script src="js/token_manager.js"></script>
 <script src="js/aibox.js"></script>
 </body>
 </html>
diff --git a/static/public/index.html b/static/public/index.html
index f6c31b9..7b5e1e8 100644
--- a/static/public/index.html
+++ b/static/public/index.html
@@ -86,6 +86,7 @@
     <footer class="footer">
         <a href="https://beian.miit.gov.cn/" target="_blank" rel="noopener">蜀ICP备2024107064号-2</a>
     </footer>
+    <script src="js/token_manager.js"></script>
     <script src="js/index.js"></script>
 </body>
 </html>
diff --git a/static/public/js/token_manager.js b/static/public/js/token_manager.js
index 48c0f1e..5224484 100644
--- a/static/public/js/token_manager.js
+++ b/static/public/js/token_manager.js
@@ -26,8 +26,9 @@ async function estimateExpiry() {
         const data = await res.json();
         if (!data.login) return false;
 
-        // 优先 iat（首次签发时间，刷新不变），回退 created_at（兼容旧 Token）
-        const issueStr = data.iat || data.created_at;
+        // 优先 created_at（刷新时更新），回退 iat（兼容旧 Token）
+        // 网关以 created_at + keep_time 判定令牌有效性，iat 刷新后不变，不能用于估算过期
+        const issueStr = data.created_at || data.iat;
         const keepTime = data.keep_time;
         if (!issueStr || !keepTime) return false;