MyfronyProject/src/components/LeftModule.vue

<template>
  <div id="alld">
    <div id="top">
      <div class="top1">
        <h3>小颠公告栏</h3>
      </div>
      <div class="top2">
        <p>站主发癫中请勿靠近</p>
      </div>
    </div>
    <div id="cont">
      <div class="cont1">
        <h2>小颠片刻</h2>
        <p>左眼右右眼左，四十五度成就美</p>
      </div>
      <div class="cont2">
        <el-menu :default-active="activeIndex" class="el-menu-vertical-demo" @select="handleSelect">
          <el-menu-item index="/:type">
            <el-icon>
            </el-icon>
            <span>首页</span>
          </el-menu-item>
          <el-menu-item index="/article-list">
            <el-icon>
            </el-icon>
            <span>目录</span>
          </el-menu-item>
          <el-menu-item index="/nonsense">
            <el-icon>
            </el-icon>
            <span>疯言疯语</span>
          </el-menu-item>
        </el-menu>
      </div>
    </div>
    <div id="bot" :class="{ 'botrelative': scrollY }">
      <el-tabs v-model="activeName" class="demo-tabs">
        <el-tab-pane label="个人简介" name="first">
          <div class="mylogo">
            <el-avatar :src="state.circleUrl" />
          </div>
          <p>清疯不颠</p>
          <p>重度精神失常患者</p>
        </el-tab-pane>
        <el-tab-pane label="功能" name="second">
        </el-tab-pane>
      </el-tabs>
    </div>
  </div>
</template>

<script lang="ts" setup>
import { reactive, ref, onMounted, onUnmounted } from 'vue'
import { useRouter } from 'vue-router'

// 当前激活菜单
const activeIndex = ref('/:type')
const router = useRouter()
const activeName = ref('first')
const state = reactive({
  circleUrl: 'https://cube.elemecdn.com/3/7c/3ea6beec64369c2642b92c6726f1epng.png',
  squareUrl: 'https://cube.elemecdn.com/9/c2/f0ee8a3c7c9638a54940382568c9dpng.png',
  sizeList: ['small', '', 'large'] as const,
})


// 处理菜单选择跳转
const handleSelect = (key: string) => {
  router.push({ path: key })
}

// 路由切换时同步菜单高亮
router.beforeEach((to) => {
  activeIndex.value = to.path
})

// 控制底部模块吸顶效果
const scrollY = ref(false)
const handleScroll = () => {
  scrollY.value = window.scrollY > 1100
}

// 生命周期管理事件监听，防止内存泄漏
onMounted(() => {
  window.addEventListener('scroll', handleScroll)
})

onUnmounted(() => {
  window.removeEventListener('scroll', handleScroll)
})
</script>

<style scoped>
/* 整体布局外层，每个子div底部间距 */
#alld div {
  margin-bottom: 15px;
}

/* 顶部公告栏样式 */
#top {
  height: 100px;
  border-radius: 10px;
  background-color: rgba(102, 161, 216, 0.9); /* 蓝色半透明背景 */
}

.top1 {
  padding-top: 10px;
  text-align: center;
  color: white;
}

.top2 {
  padding-top: 10px;
  text-align: center;
  color: white;
}

/* 内容区域样式 */
#cont {
  border-radius: 10px;
  background-color: rgba(255, 255, 255, 0.9); /* 白色半透明背景 */
}

.cont1 {
  text-align: center;
  padding: 25px;
}

.cont1 h2 {
  color: #333;
  margin-bottom: 10px;
}

.cont1 p {
  color: #666;
  font-size: 14px;
}

/* 菜单样式 */
.cont2 {
  margin-top: 20px;
}
.cont2 .el-menu-vertical-demo{
  display: block;
  background-color: rgba(0, 0, 0,0 ); /* 白色半透明背景 */
}
.cont2 .el-menu-vertical-demo ul li:hover{
  background-color: rgba(255, 255, 255, 0.9); /* 白色半透明背景 */
}

/* 分类列表样式 */
.cont3 {
  margin-top: 20px;
  padding: 15px;
  border-radius: 10px;
  background-color: rgba(255, 255, 255, 0.9);
}

.cont3 h3 {
  text-align: center;
  color: #333;
  margin-bottom: 15px;
  font-size: 16px;
}

.category-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.category-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 12px;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.3s ease;
  background-color: rgba(240, 240, 240, 0.5);
}

.category-item:hover {
  background-color: rgba(52, 152, 219, 0.2);
  transform: translateX(5px);
}

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

.category-count {
  color: #7f8c8d;
  font-size: 12px;
  background-color: rgba(127, 140, 141, 0.1);
  padding: 2px 8px;
  border-radius: 12px;
}

/* 底部标签页样式 */
#bot {
  border-radius: 10px;
  background-color: rgba(255, 255, 255, 0.9); /* 白色半透明背景 */
  padding: 15px;
}
.demo-tabs  .el-tabs__header .el-tabs__nav-wrap .el-tabs__nav-scroll{
  text-align: center;
  width: 100%;
}
/* 头像样式 */
.mylogo {
  text-align: center;
  margin-bottom: 10px;
}

.el-avatar {
  width: 80px;
  height: 80px;
}

/* 吸顶效果 */
.botrelative {
  position: sticky;
  top: 20px;
  z-index: 100;
  animation: slideDown 0.3s ease;
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
</style>