初步构建起页面布局

layouts/admin/header.uvue

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+<!-- CRMEB Admin Header组件 - uni-app版本 -->
+<template>
+  <view class="admin-header">
+    <!-- 导航栏容器 -->
+    <view class="navbars-container">
+      <!-- 面包屑导航 -->
+      <AdminBreadcrumb
+        :current-page-title="currentPageTitle"
+        :is-collapsed="isCollapsed"
+        @toggle-collapse="$emit('toggle-collapse')"
+      />
+
+      <!-- 标签页导航（如果启用） -->
+      <AdminTagsView v-if="showTagsView" />
+    </view>
+  </view>
+</template>
+
+<script>
+import AdminBreadcrumb from './breadcrumb.uvue'
+import AdminTagsView from './tags-view.uvue'
+
+export default {
+  name: 'AdminHeader',
+  components: {
+    AdminBreadcrumb,
+    AdminTagsView
+  },
+  props: {
+    isCollapsed: {
+      type: Boolean,
+      default: false
+    },
+    currentPageTitle: {
+      type: String,
+      default: '管理后台'
+    }
+  },
+  data() {
+    return {
+      showTagsView: false // 是否显示标签页，暂时关闭
+    }
+  }
+}
+</script>
+
+<style lang="scss">
+.admin-header {
+  height: 88rpx;
+  background-color: #fff;
+  box-shadow: 0 2rpx 8rpx rgba(0, 0, 0, 0.1);
+  z-index: 100;
+}
+
+.navbars-container {
+  display: flex;
+  flex-direction: column;
+  width: 100%;
+  height: 100%;
+}
+</style>