diff --git a/src/layouts/LeftTopMode.vue b/src/layouts/LeftTopMode.vue
index a04adeb4..a07e38bc 100644
--- a/src/layouts/LeftTopMode.vue
+++ b/src/layouts/LeftTopMode.vue
@@ -73,6 +73,7 @@ $transition-time: 0.35s;
 }
 
 .sidebar-container {
+  background-color: var(--el-menu-bg-color);
   transition: width $transition-time;
   width: var(--v3-sidebar-width) !important;
   height: 100%;
diff --git a/src/layouts/components/Sidebar/index.vue b/src/layouts/components/Sidebar/index.vue
index fcca44ff..9ecb27b7 100644
--- a/src/layouts/components/Sidebar/index.vue
+++ b/src/layouts/components/Sidebar/index.vue
@@ -43,8 +43,6 @@ const sidebarMenuHoverBgColor = computed(() => {
 const tipLineWidth = computed(() => {
   return !isTop.value ? "2px" : "0px"
 })
-/** 当为顶部模式时隐藏垂直滚动条 */
-const hiddenScrollbarVerticalBar = computed(() => isTop.value ? "none" : "block")
 </script>
 
 <template>
@@ -87,20 +85,15 @@ const hiddenScrollbarVerticalBar = computed(() => isTop.value ? "none" : "block"
 
 .has-logo {
   .el-scrollbar {
-    // 多 1% 是为了在左侧模式时侧边栏最底部不显示 1px 左右的白色线条
-    height: calc(101% - var(--v3-header-height));
+    height: calc(100% - var(--v3-header-height));
   }
 }
 
 .el-scrollbar {
-  // 多 1% 是为了在顶部模式时防止垂直滚动
-  height: 101%;
+  height: 100%;
   :deep(.scrollbar-wrapper) {
     // 限制水平宽度
     overflow-x: hidden !important;
-    .el-scrollbar__view {
-      height: 100%;
-    }
   }
   // 滚动条
   :deep(.el-scrollbar__bar) {
@@ -108,16 +101,11 @@ const hiddenScrollbarVerticalBar = computed(() => isTop.value ? "none" : "block"
       // 隐藏水平滚动条
       display: none;
     }
-    &.is-vertical {
-      // 当为顶部模式时隐藏垂直滚动条
-      display: v-bind(hiddenScrollbarVerticalBar);
-    }
   }
 }
 
 .el-menu {
   border: none;
-  min-height: 100%;
   width: 100% !important;
 }