如何在悬停时间导航列表中从左到右淡入/动画底部边框？

<ul class="nav-list">
  <li><a href="#">导航项1</a></li>
  <li><a href="#">导航项2</a></li>
  <li><a href="#">导航项3</a></li>
  <li><a href="#">导航项4</a></li>
</ul>

.nav-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.nav-list li {
  display: inline-block;
  position: relative;
}

.nav-list li a {
  padding: 10px;
  text-decoration: none;
  color: #000;
}

.nav-list li::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: #000;
  transition: width 0.3s ease;
}

.nav-list li:hover::after {
  width: 100%;
}