diff --git a/src/layout/components/AppMain/index.vue b/src/layout/components/AppMain/index.vue
index 5eb2a657..f9770dfd 100644
--- a/src/layout/components/AppMain/index.vue
+++ b/src/layout/components/AppMain/index.vue
@@ -73,11 +73,13 @@ const cachedViews = computed(() => tagsViewStore.cachedViews); // 缓存页面
 
 .layout-top {
   .fixed-header + .app-main {
+    min-height: calc(100vh - $navbar-height);
     padding-top: 0;
   }
 
   .hasTagsView {
     .fixed-header + .app-main {
+      min-height: calc(100vh - $navbar-height);
       padding-top: $tags-view-height;
     }
   }