diff --git a/src/views/TeacherDownloadView.vue b/src/views/TeacherDownloadView.vue
index f1f6c04..65169ec 100644
--- a/src/views/TeacherDownloadView.vue
+++ b/src/views/TeacherDownloadView.vue
@@ -11,7 +11,6 @@ import {
 import logoImg from "@/assets/logo.png";
 import {
   TEACHER_APP_DOWNLOAD_URL,
-  TEACHER_APP_BACKUP_DOWNLOAD_URL,
   TEACHER_VC_REDIST_DOWNLOAD_URL,
   TEACHER_APP_FILE_NAME,
   TEACHER_APP_FILE_SIZE,
@@ -206,26 +205,15 @@ onUnmounted(() => {
                 <Download class="w-4 h-4" />
                 重新下载
               </a>
-              <div class="grid grid-cols-2 gap-3">
-                <a
-                  :href="TEACHER_APP_BACKUP_DOWNLOAD_URL"
-                  target="_blank"
-                  rel="noopener noreferrer"
-                  class="inline-flex items-center justify-center gap-2 px-4 py-3.5 text-sm font-semibold text-primary bg-white border-2 border-primary/20 rounded-2xl hover:border-primary/40 hover:bg-primary/5 transition-all duration-200 cursor-pointer"
-                >
-                  <Download class="w-4 h-4" />
-                  备用版
-                </a>
-                <a
-                  :href="TEACHER_VC_REDIST_DOWNLOAD_URL"
-                  target="_blank"
-                  rel="noopener noreferrer"
-                  class="inline-flex items-center justify-center gap-2 px-4 py-3.5 text-sm font-semibold text-primary bg-white border-2 border-primary/20 rounded-2xl hover:border-primary/40 hover:bg-primary/5 transition-all duration-200 cursor-pointer"
-                >
-                  <Download class="w-4 h-4" />
-                  VC++环境
-                </a>
-              </div>
+              <a
+                :href="TEACHER_VC_REDIST_DOWNLOAD_URL"
+                target="_blank"
+                rel="noopener noreferrer"
+                class="w-full inline-flex items-center justify-center gap-2 px-4 py-3.5 text-sm font-semibold text-primary bg-white border-2 border-primary/20 rounded-2xl hover:border-primary/40 hover:bg-primary/5 transition-all duration-200 cursor-pointer"
+              >
+                <Download class="w-4 h-4" />
+                VC++环境
+              </a>
               <RouterLink
                 to="/"
                 class="w-full inline-flex items-center justify-center gap-2 px-6 py-3 text-sm font-medium text-text-muted hover:text-primary transition-colors duration-200"