diff --git a/src/assets/styles/index.scss b/src/assets/styles/index.scss
index bb87292..7c6919a 100644
--- a/src/assets/styles/index.scss
+++ b/src/assets/styles/index.scss
@@ -10,7 +10,12 @@ body {
   -moz-osx-font-smoothing: grayscale;
   -webkit-font-smoothing: antialiased;
   text-rendering: optimizeLegibility;
-  font-family: Helvetica Neue, Helvetica, PingFang SC, Hiragino Sans GB, Microsoft YaHei, Arial, sans-serif;
+  font-family: "Source Han Sans CN", "思源黑体", sans-serif;
+}
+
+/* 覆盖所有 Element UI 组件字体 */
+[class^="el-"] {
+  font-family: "Source Han Sans CN", "思源黑体", sans-serif !important;
 }
 
 label {
@@ -104,7 +109,7 @@ aside {
   display: block;
   line-height: 32px;
   font-size: 16px;
-  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, "Fira Sans", "Droid Sans", "Helvetica Neue", sans-serif;
+  font-family: "Source Han Sans SC", "Noto Sans SC", sans-serif;
   color: #2c3e50;
   -webkit-font-smoothing: antialiased;
   -moz-osx-font-smoothing: grayscale;
@@ -175,4 +180,4 @@ aside {
     vertical-align: middle;
     margin-bottom: 10px;
   }
-}
+}
\ No newline at end of file
diff --git a/src/utils/request.js b/src/utils/request.js
index bf8b3ce..b9b9f2d 100644
--- a/src/utils/request.js
+++ b/src/utils/request.js
@@ -82,15 +82,27 @@ service.interceptors.response.use(res => {
   if (res.request.responseType === 'blob' || res.request.responseType === 'arraybuffer') {
     return res.data
   }
-  if (code === 401) {
+  if (code === 401 || code == 910) {
+    // 防止重复弹窗，使用延时重置锁，兼容并发请求
     if (!isRelogin.show) {
       isRelogin.show = true
-      MessageBox.confirm('登录状态已过期，您可以继续留在该页面，或者重新登录', '系统提示', { confirmButtonText: '重新登录', cancelButtonText: '取消', type: 'warning' }).then(() => {
-        isRelogin.show = false
-        store.dispatch('LogOut').then(() => {
-          location.href = '/index'
-        })
+      MessageBox.confirm(
+        '登录状态已过期，您可以继续留在该页面，或者重新登录',
+        '系统提示',
+        {
+          confirmButtonText: '重新登录',
+          cancelButtonText: '取消',
+          type: 'warning'
+        }
+      ).then(() => {
+        // 退出登录并跳转
+        return store.dispatch('LogOut')
+      }).then(() => {
+        location.href = '/index'
       }).catch(() => {
+        // 捕获异常，保证锁一定释放
+      }).finally(() => {
+        // 无论点确定/取消/报错，最终都解锁
         isRelogin.show = false
       })
     }