ContestPortal/src/Layout/tabbar/index.vue

<template>
  <div :class="!flog ? 'tabbar' : 'tabbar-active'">
    <div class="container">
      <div class="left">
        <div class="logo-box">
          <div class="lesson">LGOG</div>
        </div>

        <div class="menu">
          <ul>
            <li v-for="(item, index) in constRouter.children" :key="index">
              {{ item.meta.title }}
            </li>
          </ul>
        </div>
      </div>
      <div class="right">
        <div class="registered gradient">注册</div>
        <div class="login">登录</div>
      </div>
    </div>
  </div>
</template>

<script lang="ts" setup>
import { constRouter } from '@/router/module/constRouter'
// import { useRouter, useRoute } from 'vue-router'
import { onMounted, ref } from 'vue'
// const $router = useRouter()
// const $route = useRoute()
console.log(constRouter, '111')

const flog = ref(false)
onMounted(() => {
  window.addEventListener('scroll', () => {
    if (window.scrollY >= 50) {
      flog.value = true
    } else if (flog.value && window.scrollY <= 50) {
      flog.value = false
    }
  })
})
</script>

<style lang="scss" scoped>
.logo-box {
  display: flex;
  align-items: center;
  column-gap: 20px;
  .logo {
    width: 50px;

    img {
      width: 100%;
      height: 100%;
    }
  }

  .lesson {
    font-size: 30px;
    font-weight: bolder;
    color: #1d2129;
  }
}

.tabbar {
  position: fixed;
  top: 0;
  z-index: 1;
  height: 80px;
  width: 100%;
  background-color: transparent;
  animation-duration: 0.3s;
  animation-name: tabber-to;
}

.tabbar-active {
  position: fixed;
  top: 0;
  height: 80px;
  width: 100%;
  background-color: #fff;
  animation-duration: 0.3s;
  animation-name: tabber;
  z-index: 999;
  box-shadow: 0px 0px 43px rgba(0, 0, 0, 0.2);
}

@keyframes tabber {
  0% {
    // transform: translateY(-80px);
    background-color: transparent;
  }

  100% {
    // transform: translateY(0);
    background-color: #fff;
  }
}

@keyframes tabber-to {
  0% {
    // transform: translateY(-80px);
    background-color: #fff;
  }

  100% {
    // transform: translateY(0);
    background-color: transparent;
  }
}

.container {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin: 0 auto;
  width: $base-container-width;
  .left {
    display: flex;
    align-items: center;
  }
  .right {
    display: flex;
    div {
      width: 108px;
      height: 40px;
      text-align: center;
      line-height: 40px;
      border-radius: 5px;
      font-size: 14px;
      cursor: pointer;
    }
    .registered{
      color: #fff;
    }
    .login{
      color: #1D2129;
      margin-left: 20px;
      border: 1px solid #E5E6EB;
    }
  }
  .menu {
    position: relative;
    padding: 0 20px;
    height: 100%;
    display: flex;
    align-items: center;

    ul {
      display: flex;
      align-items: center;

      li {
        padding: 12px 20px;
        color: #1d2129;
        font-size: 14px;
        cursor: pointer;
        transition: all 0.2s;
        position: relative;
      }

      li:hover {
        color: #0033f7;
        transform: translateY(-5px);
      }

      .active::before {
        content: ' ';
        display: block;
        position: absolute;
        top: 0px;
        left: 50%;
        transform: translateX(-50%);
        width: 5px;
        height: 5px;
        border-radius: 50%;
        background-color: #fff;
      }
    }

    .entry {
      position: absolute;
      top: 5px;
      right: 30px;
      display: flex;
      align-content: center;

      div {
        // padding: 5px;
        margin: 5px;
        margin-right: 0;
        padding: 0 10px;
        border-right: 1px solid #fff;
        color: #fff;
        font-size: 14px;
        cursor: pointer;
      }

      div:last-child {
        border-right: none;
      }
    }
  }

  .logo {
    // height: 100%;
    display: flex;
    align-items: center;
  }
}
</style>