update：更新左侧菜单样式

src/layout/index-view-layout-left/index-view-layout-left.scss

-.index-view-layout-left {
-    .header-right {
+.index-view-layout--left {
+    position: relative;
+
+    .index-view-layout-sider {
+        flex: none !important;
+        max-width: none !important;
+        transition: none 0s ease 0s;
+        background-color: var(--app-color-white);
+
+        .sider__top {
+            font-size: 21px;
+            font-weight: 700;
+            height: 64px;
+            display: flex;
+            justify-content: center;
+            align-items: center;
+        }
+
+        .app-menu {
+            height: calc(100% - 64px);
+            overflow-y: auto;
+            overflow-x: hidden;
+        }
+    }
+
+    .index-view-layout-split {
+        position: absolute;
+        left: 195px;
+        width: 5px;
+        height: 100%;
+        cursor: w-resize;
+    }
+
+    .index-view-layout-header {
+        height: 64px;
         display: flex;
-        align-items: center;
         justify-content: space-between;
+        align-items: center;
+        background-color: var(--app-color-white);
+        color: var(--app-color-black);
+
+        .header__left {
+            display: flex;
+            font-size: 21px;
+            margin-left: 8px;
+            align-items: center;
+        }
+
+        .header__right {
+            display: flex;
+            align-items: center;
+        }
     }
-    .index_sider {
-        background-color:#FFF;
+
+    .index-view-layout-content {
+        height: calc(100% - 64px);
+        background-color: var(--app-color-gray-400);
+
+        >.view-container {
+            overflow: auto;
+            background-color: var(--app-color-gray-400);
+        }
+
+        &.index-view-layout-content--tab {
+
+            >.view-container {
+                height: calc(100% - 55px);
+            }
+        }
     }
 }
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src/layout/index-view-layout-left/index-view-layout-left.vue

 <template>
-    <layout class="index_view index-view-layout-left" id="movebox">
-        <sider class="index_sider" :width="collapseChange ? 64 : 200" hide-trigger id="left_move">
-            <div class="sider-top">
+    <layout class="index-view-layout index-view-layout--left" id="movebox">
+        <sider class="index-view-layout-sider" :width="collapseChange ? 64 : 200" hide-trigger id="left_move">
+            <div class="sider__top">
                 <slot name="siderTop" />
             </div>
             <slot name="siderContent" />
         </sider>
-        <div v-show="!collapseChange" id="move_axis"></div>
+        <div v-show="!collapseChange" class="index-view-layout-split" id="move_axis"></div>
         <layout id="right_move">
-            <header class="index_header">
-                <div class="header-left">
+            <header class="index-view-layout-header">
+                <div class="header__left">
                     <slot name="headerLeft" />
                 </div>
-                <div class="header-center">
+                <div class="header__center">
                     <slot name="headerCenter" />
                 </div>
-                <div class="header-right">
+                <div class="header__right">
                     <slot name="headerRight" />
                 </div>   
             </header>
-            <content :class="{ 'index_content': true, 'index_tab_content': Object.is(navModel,'tab') ? true : false, 'index_route_content': Object.is(navModel,'route') ? true : false }">
+            <content :class="{ 'index-view-layout-content': true, 'index-view-layout-content--tab': Object.is(navModel,'tab') ? true : false, 'index-view-layout-content--route': Object.is(navModel,'route') ? true : false }">
                 <slot name="tabPageExp" />
                 <slot name="navPos" />
             </content>

src/styles/element/menu.scss

@@ -39,4 +39,10 @@
             }
         }
     }
+}
+
+.el-menu--vertical {
+    .el-menu-item, .el-submenu__title {
+        height: 57px;
+    }
 }
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