优化了后台界面最上方无用区域

frontend/src/layouts/AdminLayout.vue

@@ -217,6 +217,11 @@ const defaultOpeneds = computed(() => {
 })
 
 const adminName = computed(() => adminSession.nickname || adminSession.username || '管理员')
+const adminRoleText = computed(() => {
+  if (adminSession.isSuperAdmin) return '超级管理员'
+  const names = adminSession.roles.map(role => role.name).filter(Boolean)
+  return names.join(' / ') || '管理员'
+})
 const supportStatus = computed(() => adminSession.supportStatus || 'offline')
 const hasChatPermission = computed(() => adminSession.hasPermission('chat:view'))
 
@@ -330,29 +335,20 @@ async function handleForcedPasswordChange() {
           </el-menu-item>
         </el-sub-menu>
       </el-menu>
-    </aside>
 
-    <section class="admin-workspace">
+      <div class="admin-sidebar-footer">
-      <header class="admin-topbar">
-        <div class="topbar-left">
-          <el-breadcrumb separator="/">
-            <el-breadcrumb-item :to="{ path: ADMIN_DASHBOARD_PATH }">首页</el-breadcrumb-item>
-            <el-breadcrumb-item v-if="route.meta.title">{{ route.meta.title }}</el-breadcrumb-item>
-          </el-breadcrumb>
-        </div>
-        <div class="topbar-right">
         <el-dropdown
           v-if="hasChatPermission"
           trigger="click"
           @command="handleStatusChange"
           :disabled="updatingStatus"
         >
-            <span class="status-badge" :style="{ borderColor: statusColors[supportStatus] }">
+          <span class="sidebar-status" :style="{ borderColor: statusColors[supportStatus] }">
             <span
               class="status-dot"
               :style="{ backgroundColor: statusColors[supportStatus] }"
             ></span>
-              <span class="status-text">{{ statusLabels[supportStatus] }}</span>
+            <span v-show="!isCollapsed" class="status-text">{{ statusLabels[supportStatus] }}</span>
           </span>
           <template #dropdown>
             <el-dropdown-menu>
@@ -372,9 +368,12 @@ async function handleForcedPasswordChange() {
           </template>
         </el-dropdown>
         <el-dropdown trigger="click">
-            <span class="user-info">
+          <span class="sidebar-user">
             <el-avatar :size="32" :icon="User" />
-              <span class="username">{{ adminName }}</span>
+            <span v-show="!isCollapsed" class="sidebar-user-text">
+              <strong>{{ adminName }}</strong>
+              <small>{{ adminRoleText }}</small>
+            </span>
           </span>
           <template #dropdown>
             <el-dropdown-menu>
@@ -385,7 +384,9 @@ async function handleForcedPasswordChange() {
           </template>
         </el-dropdown>
       </div>
-      </header>
+    </aside>
+
+    <section class="admin-workspace">
       <main class="admin-main">
         <slot />
       </main>
@@ -523,6 +524,89 @@ async function handleForcedPasswordChange() {
   overflow-x: hidden;
 }
 
+.admin-sidebar-footer {
+  display: grid;
+  flex: none;
+  gap: 10px;
+  padding: 12px;
+  border-top: 1px solid #3d4e5f;
+  background: rgba(16, 24, 39, 0.18);
+}
+
+.admin-shell--collapsed .admin-sidebar-footer {
+  padding: 10px 8px;
+}
+
+.sidebar-status {
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  gap: 7px;
+  width: 100%;
+  min-height: 30px;
+  padding: 0 10px;
+  border: 1px solid;
+  border-radius: 8px;
+  color: #d7dfec;
+  cursor: pointer;
+  transition:
+    background-color 0.2s,
+    border-color 0.2s;
+}
+
+.sidebar-status:hover {
+  background-color: rgba(255, 255, 255, 0.08);
+}
+
+.admin-shell--collapsed .sidebar-status {
+  padding: 0;
+}
+
+.sidebar-user {
+  display: flex;
+  align-items: center;
+  gap: 10px;
+  min-width: 0;
+  width: 100%;
+  padding: 8px;
+  border-radius: 10px;
+  cursor: pointer;
+  transition: background-color 0.2s;
+}
+
+.sidebar-user:hover {
+  background-color: rgba(255, 255, 255, 0.08);
+}
+
+.admin-shell--collapsed .sidebar-user {
+  justify-content: center;
+  padding: 8px 0;
+}
+
+.sidebar-user-text {
+  display: grid;
+  min-width: 0;
+  gap: 2px;
+}
+
+.sidebar-user-text strong {
+  overflow: hidden;
+  color: #fff;
+  font-size: 13px;
+  line-height: 18px;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+}
+
+.sidebar-user-text small {
+  overflow: hidden;
+  color: #8fa0ba;
+  font-size: 12px;
+  line-height: 16px;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+}
+
 .admin-menu:not(.el-menu--collapse) {
   width: 100%;
 }
@@ -603,43 +687,6 @@ async function handleForcedPasswordChange() {
   overflow: hidden;
 }
 
-.admin-topbar {
-  height: 56px;
-  flex: none;
-  display: flex;
-  align-items: center;
-  justify-content: space-between;
-  padding: 0 24px;
-  background-color: #fff;
-  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.08);
-}
-
-.topbar-left {
-  display: flex;
-  align-items: center;
-}
-
-.topbar-right {
-  display: flex;
-  align-items: center;
-  gap: 16px;
-}
-
-.status-badge {
-  display: flex;
-  align-items: center;
-  gap: 6px;
-  padding: 6px 12px;
-  border: 1px solid;
-  border-radius: 16px;
-  cursor: pointer;
-  transition: all 0.2s;
-}
-
-.status-badge:hover {
-  background-color: #f5f7fa;
-}
-
 .status-dot {
   width: 8px;
   height: 8px;
@@ -649,7 +696,7 @@ async function handleForcedPasswordChange() {
 
 .status-text {
   font-size: 13px;
-  color: #606266;
+  color: inherit;
   font-weight: 500;
 }
 
@@ -657,22 +704,10 @@ async function handleForcedPasswordChange() {
   margin-right: 8px;
 }
 
-.user-info {
-  display: flex;
-  align-items: center;
-  gap: 8px;
-  cursor: pointer;
-  color: #606266;
-}
-
-.username {
-  font-size: 14px;
-}
-
 .admin-main {
   flex: 1;
   min-height: 0;
-  padding: 24px;
+  padding: 18px 24px 24px;
   overflow-y: auto;
 }