1.vue仿照snowy 配置，如下图：

2.代码实现

<template>
  <div class="theme-settings">
    <!-- 导航栏 -->
    <div class="nav-bar">
      <el-breadcrumb separator="/">
        <el-breadcrumb-item>导航设置</el-breadcrumb-item>
        <el-breadcrumb-item>导航菜单布局</el-breadcrumb-item>
      </el-breadcrumb>
    </div>

    <!-- 设置区域 -->
    <div class="settings-section">
      <!-- 整体风格设置 -->
      <div class="setting-item">
        <span class="label">整体风格设置</span>
        <div class="style-options">
          <div
            v-for="(style, index) in styles"
            :key="index"
            :class="{ 'style-block': true, selected: selectedStyle === style.value }"
            @click="selectStyle(style.value)"
          >
            <div :class="['style-icon', style.class]">
              <div :class="['header-bar', style.headerClass]"></div>
            </div>
          </div>
        </div>
      </div>

      <!-- 整体界面布局 -->
      <div class="setting-item">
        <span class="label">整体界面布局</span>
        <div class="layout-options">
          <div
            v-for="(layout, index) in layouts"
            :key="index"
            :class="{ 'layout-block': true, selected: selectedLayout === layout.value }"
            @click="selectLayout(layout.value)"
          >
            <div :class="['layout-icon', layout.class]">
              <div :class="['header-bar', layout.headerClass]"></div>
            </div>
          </div>
        </div>
      </div>

      <!-- 主题设置 -->
      <h3>主题设置 <el-button type="text" size="small" @click="resetTheme">恢复默认（黑灰）</el-button></h3>

      <!-- 主题色 -->
      <div class="setting-item">
        <span class="label">主题色</span>
        <div class="color-picker">
          <div
            v-for="(color, index) in themeColors"
            :key="index"
            :style="{ backgroundColor: color }"
            :class="{ 'color-block': true, selected: selectedThemeColor === color }"
            @click="selectThemeColor(color)"
          ></div>
        </div>
      </div>

      <!-- 页面公用主色 -->
      <div class="setting-item">
        <span class="label">页面公用主色</span>
        <el-switch v-model="useCommonMainColor"></el-switch>
      </div>

      <!-- 页面公用背景色 -->
      <div class="setting-item">
        <span class="label">页面公用背景色</span>
        <el-switch v-model="useCommonBgColor"></el-switch>
      </div>

      <!-- 侧边栏 -->
      <div class="setting-item">
        <span class="label">侧边栏</span>
        <el-switch v-model="showSidebar"></el-switch>
      </div>

      <!-- 侧边栏展开 -->
      <div class="setting-item">
        <span class="label">侧边栏展开</span>
        <el-switch v-model="expandSidebar"></el-switch>
      </div>

      <!-- 变更模块展开方式 -->
      <div class="setting-item">
        <span class="label">变更模块展开方式</span>
        <el-switch v-model="changeModuleExpand"></el-switch>
      </div>

      <!-- 变更用户小卡片 -->
      <div class="setting-item">
        <span class="label">变更用户小卡片</span>
        <el-switch v-model="changeUserCard"></el-switch>
      </div>

      <!-- 页面权限角色 -->
      <div class="setting-item">
        <span class="label">页面权限角色</span>
        <el-switch v-model="enablePageRole"></el-switch>
      </div>

      <!-- 页面权限 -->
      <div class="setting-item">
        <span class="label">页面权限</span>
        <el-switch v-model="enablePagePermission"></el-switch>
      </div>

      <!-- 提示信息 -->
      <div class="tip">
        <el-alert
          title="提示：切换主题需重新登录，开发需先在 config/index.js 中配置默认值，否则不会生效"
          type="warning"
          :closable="false"
        ></el-alert>
      </div>

      <!-- 操作按钮 -->
      <div class="actions">
        <el-button type="primary" @click="saveSettings">提交</el-button>
        <el-button @click="resetSettings">重置</el-button>
      </div>
    </div>
  </div>
</template>

<script>
export default {
  data() {
    return {
      // 整体风格设置选项
      styles: [
        { value: "style1", class: "style1", headerClass: "header-dark" },
        { value: "style2", class: "style2", headerClass: "header-light" },
        { value: "style3", class: "style3", headerClass: "header-dark" },
      ],
      selectedStyle: "style3", // 默认选中第三个

      // 整体界面布局选项
      layouts: [
        { value: "layout1", class: "layout1", headerClass: "header-dark" },
        { value: "layout2", class: "layout2", headerClass: "header-dark" },
        { value: "layout3", class: "layout3", headerClass: "header-dark" },
      ],
      selectedLayout: "layout1", // 默认选中第一个

      // 主题色
      themeColors: [
        "#FF0000", // 红
        "#FF69B4", // 粉
        "#00CED1", // 青
        "#00FF00", // 绿
        "#0000FF", // 蓝
        "#800080", // 紫
        "#000000", // 黑
      ],
      selectedThemeColor: "#000000", // 默认黑色
      useCommonMainColor: false,
      useCommonBgColor: false,
      showSidebar: true,
      expandSidebar: false,
      changeModuleExpand: true,
      changeUserCard: false,
      enablePageRole: false,
      enablePagePermission: false,
    };
  },
  methods: {
    selectStyle(style) {
      this.selectedStyle = style;
      this.$message.success(`已选择风格：${style}`);
    },
    selectLayout(layout) {
      this.selectedLayout = layout;
      this.$message.success(`已选择布局：${layout}`);
    },
    selectThemeColor(color) {
      this.selectedThemeColor = color;
      this.$message.success(`已选择主题色：${color}`);
    },
    resetTheme() {
      this.selectedThemeColor = "#000000";
      this.$message.success("已恢复默认主题（黑灰）");
    },
    saveSettings() {
      const settings = {
        style: this.selectedStyle,
        layout: this.selectedLayout,
        themeColor: this.selectedThemeColor,
        useCommonMainColor: this.useCommonMainColor,
        useCommonBgColor: this.useCommonBgColor,
        showSidebar: this.showSidebar,
        expandSidebar: this.expandSidebar,
        changeModuleExpand: this.changeModuleExpand,
        changeUserCard: this.changeUserCard,
        enablePageRole: this.enablePageRole,
        enablePagePermission: this.enablePagePermission,
      };
      console.log("保存设置:", settings);
      this.$message.success("设置已保存，请重新登录以生效");
    },
    resetSettings() {
      this.selectedStyle = "style3";
      this.selectedLayout = "layout1";
      this.selectedThemeColor = "#000000";
      this.useCommonMainColor = false;
      this.useCommonBgColor = false;
      this.showSidebar = true;
      this.expandSidebar = false;
      this.changeModuleExpand = true;
      this.changeUserCard = false;
      this.enablePageRole = false;
      this.enablePagePermission = false;
      this.$message.success("已重置所有设置");
    },
  },
};
</script>

<style lang="less" scoped>
.theme-settings {
  padding: 20px;

  .nav-bar {
    margin-bottom: 20px;
  }

  .settings-section {
    background: #fff;
    padding: 20px;
    border-radius: 4px;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.1);

    h3 {
      margin-bottom: 20px;
      font-size: 18px;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }

    .setting-item {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 20px;

      .label {
        font-size: 14px;
        color: #333;
      }

      .style-options,
      .layout-options {
        display: flex;
        gap: 10px;

        .style-block,
        .layout-block {
          width: 60px;
          height: 40px;
          border-radius: 4px;
          border: 2px solid transparent;
          cursor: pointer;
          position: relative;
          transition: border 0.3s;

          &.selected {
            border: 2px solid #409eff;
            &:after {
              content: "\2713"; /* 勾号 */
              position: absolute;
              top: 2px;
              right: 2px;
              color: #409eff;
              font-size: 16px;
              font-weight: bold;
            }
          }

          .style-icon,
          .layout-icon {
            width: 100%;
            height: 100%;
            border-radius: 2px;
            position: relative;
            overflow: hidden;
          }

          /* 头部颜色条 */
          .header-bar {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 8px; /* 头部高度 */
          }

          .header-dark {
            background-color: #2c3e50; /* 深色头部 */
          }

          .header-light {
            background-color: #ecf0f1; /* 浅色头部 */
          }

          /* 整体风格设置图标样式 */
          .style1 {
            background: linear-gradient(to right, #2c3e50 20%, #ecf0f1 20%);
          }
          .style2 {
            background: linear-gradient(to right, #ecf0f1 20%, #ecf0f1 20%);
          }
          .style3 {
            background: linear-gradient(to right, #2c3e50 20%, #2c3e50 20%);
          }

          /* 整体界面布局图标样式 */
          .layout1 {
            background: linear-gradient(to right, #2c3e50 20%, #ecf0f1 20%);
          }
          .layout2 {
            background: linear-gradient(to right, #2c3e50 20%, #ecf0f1 20%);
          }
          .layout3 {
            background: linear-gradient(to right, #2c3e50 20%, #2c3e50 20%);
          }
        }
      }

      .color-picker {
        display: flex;
        gap: 10px;

        .color-block {
          width: 30px;
          height: 30px;
          border-radius: 4px;
          cursor: pointer;
          border: 2px solid transparent;
          transition: border 0.3s;

          &.selected {
            border: 2px solid #409eff;
          }
        }
      }
    }

    .tip {
      margin-bottom: 20px;
    }

    .actions {
      text-align: right;

      .el-button {
        margin-left: 10px;
      }
    }
  }
}
</style>