Vant 4 - A lightweight, customizable Vue UI library for mobile web apps.

顺带一个顶部导航栏正常写法  先使用吸顶为0，然后再写nav-bar

 <van-sticky :offset-top="0">

        <van-nav-bar class="top-title" title="村集体土地公示" left-arrow @click-left="$router.back()" />

      </van-sticky>