diff --git a/src/assets/style/theme/_bak.scss b/src/assets/style/theme/_bak.scss
deleted file mode 100644
index a0122f66..00000000
--- a/src/assets/style/theme/_bak.scss
+++ /dev/null
@@ -1,168 +0,0 @@
-@import '~@/assets/style/public.scss';
-
-$theme-color: #EFF4F8;
-
-$border-color: #d8dfea;
-// 默认主题
-.layout-main {
-  &.classic {
-    height: 100vh;
-    width: 100vw;
-    background-color: $theme-color;
-    background-image: url('/static/image/bg/2.jpg');
-    background-size: cover;
-    background-position: center;
-    .el-card {
-      box-shadow: none;
-      &:hover {
-        // box-shadow: 0 0 8px 0 rgba(232,237,250,.6), 0 2px 4px 0 rgba(232,237,250,.5);
-        box-shadow: none;
-      }
-    }
-    .dd-container-full {
-      position: absolute;
-      border-top-left-radius: 4px;
-      border-top-right-radius: 4px;
-      border-top: 1px solid $border-color;
-      border-left: 1px solid $border-color;
-      border-right: 1px solid $border-color;
-      background-color: #fff;
-      overflow: hidden;
-      color: #303133;
-      &:hover {
-        // box-shadow: 0 0 8px 0 rgba(232,237,250,.6), 0 2px 4px 0 rgba(232,237,250,.5);
-        box-shadow: none;
-      }
-      .dd-container-full__header {
-        position: absolute;
-        top: 0px;
-        left: 0px;
-        width: 100%;
-        padding: 18px 20px;
-        border-bottom: 1px solid $border-color;
-        box-sizing: border-box;
-      }
-      .dd-container-full__body {
-        position: absolute;
-        padding: 20px;
-        left: 0px;
-        right: 0px;
-        bottom: 0px;
-        overflow: auto;
-      }
-      .dd-container-full__footer {
-        position: absolute;
-        bottom: 0px;
-        left: 0px;
-        width: 100%;
-        padding: 18px 20px;
-        border-top: 1px solid $border-color;
-        box-sizing: border-box;
-      }
-    }
-    // [布局] 顶栏
-    .el-header {
-      padding: 0px;
-      // logo区域
-      .logo-group {
-        transition: width .3s;
-        float: left;
-        text-align: center;
-        img {
-          height: 60px;
-        }
-      }
-      // 折叠侧边栏切换按钮
-      .toggle-aside-btn {
-        float: left;
-        height: 60px;
-        width: 60px;
-        display: flex;
-        justify-content: center;
-        align-items: center;
-        user-select: none;
-        cursor: pointer;
-        i {
-          font-size: 20px;
-          color: $color-text-normal;
-          margin-top: 4px;
-          &:hover {
-            color: $color-primary;
-          }
-        }
-      }
-      // [菜单] 顶栏
-      .el-menu {
-        float: left;
-        border-bottom: none;
-        background-color: transparent;
-        .el-menu-item {
-          border-bottom: none;
-          border-top: 2px solid transparent;
-          &:hover {
-            background-color: transparent;
-          }
-          &.is-active {
-            border-bottom: none;
-            border-top: 2px solid $color-primary;
-            background-color: transparent;
-          }
-        }
-      }
-      // 顶栏右侧的按钮
-      .dd-header-right {
-        float: right;
-        height: 60px;
-        display: flex;
-        align-items: center;
-        .btn-text {
-          color: $color-text-normal;
-        }
-        .el-dropdown {
-          user-select: none;
-          cursor: pointer;
-        }
-      }
-    }
-    // [布局] 顶栏下面
-    .el-container {
-      // 侧边栏
-      .el-aside {
-        transition: width .3s;
-        overflow: inherit;
-        // 空菜单
-        .dd-side-menu-empty {
-          background-color: rgba(#000, .03);
-          margin: $margin;
-          margin-top: 0px;
-          border-radius: 4px;
-          line-height: 100px;
-          text-align: center;
-          color: $color-text-sub;
-        }
-        // [菜单] 正常状态
-        .el-menu {
-          background-color: transparent;
-          border-right: none;
-          .el-submenu__title {
-            &:hover {
-              background-color: rgba(#000, .05);
-            }
-          }
-        }
-        // [菜单] 折叠状态
-        .el-menu--collapse {
-          background-color: transparent;
-          .el-submenu__title {
-            text-align: center;
-          }
-        }
-      }
-      .el-main {
-        padding: 0px;
-        position: relative;
-        overflow: hidden;
-      }
-    }
-  }
-}
diff --git a/src/assets/style/theme/theme.scss b/src/assets/style/theme/theme.scss
index 28168786..970907e2 100644
--- a/src/assets/style/theme/theme.scss
+++ b/src/assets/style/theme/theme.scss
@@ -80,6 +80,23 @@ $theme-color: #EFF4F8;
       .el-menu {
         background-color: transparent;
         border-right: none;
+        .el-menu-item {
+          i {
+            margin-right: 5px;
+            font-size: 20px;
+          }
+        }
+      }
+      .el-submenu {
+        .el-submenu__title {
+          i {
+            margin-right: 5px;
+            font-size: 20px;
+          }
+          .el-submenu__icon-arrow {
+            margin-top: -10px;
+          }
+        }
       }
       // [菜单] 折叠状态
       .el-menu--collapse {