样式: logo改纯CSS渐变徽标+文字，弱化右上角用户区，删除logo图片

src/components/main/components/user/user.less

@@ -3,35 +3,30 @@
     cursor: pointer;
     display: inline-block;
     vertical-align: middle;
-    padding: 4px 10px;
-    border-radius: 20px;
+    padding: 4px 8px;
+    border-radius: 18px;
     transition: background .18s;
     &:hover{
       background: rgba(79, 110, 247, .08);
     }
-    // 头像：白色描边 + 主色光晕，悬浮轻微放大
+    // 头像：小尺寸、无描边无光晕，安静融入顶栏
     .user-avatar{
-      width: 34px;
-      height: 34px;
-      font-size: 16px;
+      width: 28px;
+      height: 28px;
+      font-size: 13px;
       vertical-align: middle;
-      box-shadow: 0 0 0 2px #fff, 0 2px 6px rgba(79, 110, 247, .25);
-      transition: transform .15s;
     }
-    &:hover .user-avatar{
-      transform: scale(1.06);
-    }
-    // 姓名与下拉箭头
+    // 姓名与下拉箭头：常规字重、浅色，视觉减重
     .user-nick{
       font-size: 14px;
-      font-weight: 600;
-      color: #3d4a66;
-      margin: 0 4px 0 8px;
+      font-weight: 400;
+      color: #515a6e;
+      margin: 0 2px 0 8px;
       vertical-align: middle;
     }
     .user-arrow{
       vertical-align: middle;
-      color: #8090b0;
+      color: #a3b0c9;
       transition: transform .18s;
     }
     &:hover .user-arrow{

src/components/main/components/user/user.vue

@@ -38,7 +38,7 @@ export default {
       return {
         background: 'linear-gradient(135deg, #4f6ef7, #7c5cf0)',
         color: '#fff',
-        fontWeight: 600
+        fontWeight: 500
       }
     }
   },

src/components/main/main.less

@@ -1,13 +1,33 @@
 .main{
   .logo-con{
     height: 64px;
-    padding: 10px;
-    text-align: center;
-    img{
-      height: 44px;
-      width: auto;
-      display: block;
-      margin: 0 auto;
+    // flex 居中：收起态只剩徽标也自动居中
+    display: flex;
+    align-items: center;
+    justify-content: center;
+    gap: 10px;
+    overflow: hidden;
+    white-space: nowrap;
+    // 渐变徽标：与登录页主色同源，无底色块，直接落在侧栏上
+    .logo-badge{
+      flex: none;
+      width: 36px;
+      height: 36px;
+      line-height: 36px;
+      text-align: center;
+      border-radius: 10px;
+      background: linear-gradient(135deg, #4f6ef7, #7c5cf0);
+      color: #fff;
+      font-size: 20px;
+      font-weight: 700;
+      box-shadow: 0 2px 8px rgba(79, 110, 247, .3);
+    }
+    // 文字：深墨色，轻字重间隔，与侧栏浅底协调
+    .logo-name{
+      font-size: 21px;
+      font-weight: 600;
+      letter-spacing: .5px;
+      color: #1f2d50;
     }
   }
   .header-con{

src/components/main/main.vue

@@ -2,10 +2,10 @@
   <Layout style="height: 100%" class="main">
     <Sider hide-trigger collapsible :width="256" :collapsed-width="64" v-model="collapsed" class="left-sider sider-light" :style="{overflow: 'hidden'}">
       <side-menu accordion ref="sideMenu" :active-name="$route.name" :collapsed="collapsed" theme="light" @on-select="turnToPage" :menu-list="menuList">
-        <!-- 需要放在菜单上面的内容，如Logo，写在side-menu标签内部，如下 -->
-        <div class="logo-con" style="text-align: center">
-          <img v-show="!collapsed" :src="maxLogo" key="max-logo" />
-          <img v-show="collapsed" :src="minLogo" key="min-logo" />
+        <!-- 纯 CSS logo：渐变徽标 + 文字，不用图片 -->
+        <div class="logo-con">
+          <div class="logo-badge">F</div>
+          <span v-show="!collapsed" class="logo-name">Freedom</span>
         </div>
       </side-menu>
     </Sider>
@@ -41,8 +41,6 @@ import Fullscreen from './components/fullscreen'
 import ErrorStore from './components/error-store'
 import { mapMutations, mapActions, mapGetters } from 'vuex'
 import { getNewTagList, getNextRoute, routeEqual } from '@/libs/util'
-import minLogo from '@/assets/images/logo-min.svg'
-import maxLogo from '@/assets/images/logo.svg'
 import './main.less'
 export default {
   name: 'Main',
@@ -57,8 +55,6 @@ export default {
   data () {
     return {
       collapsed: false,
-      minLogo,
-      maxLogo,
       isFullscreen: false
     }
   },