vant-weapp/dist/steps/wxss/vstep.wxss

.zan-steps--vsteps {
  color: #999;
  font-size: 14px;
}

.zan-steps--vsteps .zan-steps__step {
  position: relative;
  padding: 15px 0;
}

.zan-steps--vsteps .zan-steps__step--done {
  color: #44BB00;
}

.zan-steps--vsteps .zan-steps__line {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 7px;
  width: 1px;
  background-color: #e5e5e5;
}

.zan-steps--vsteps .zan-steps__title {
  display: inline-block;
  line-height: 20px;
  padding-left: 27px;
}

.zan-steps--vsteps .zan-steps__title--desc {
  padding-left: 3px;
}

.zan-steps--vsteps .zan-steps__icons {
  position: absolute;
  left: 7px;
  top: 50%;
  transform: translate(-50%, -50%);
  z-index: 2;
  padding: 3px 0;
  background-color: #fff;
}

.zan-steps--vsteps .zan-steps__circle {
  width: 5px;
  height: 5px;
  background-color: #cacaca;
  border-radius: 10px;
}

.zan-steps--vsteps .zan-steps__step--done .zan-steps__circle {
  width: 13px;
  height: 13px;
  background: transparent url("https://b.yzcdn.cn/v2/image/wap/success_small@2x.png");
  background-size: 13px 13px;
  border-radius:0;
}

.zan-steps--vsteps .zan-steps__icon--active {
  width: 13px;
  height: 13px;
}

.zan-steps--vsteps .zan-steps__step--first-child .zan-steps__title::before {
  content: '';
  position: absolute;
  top: 0;
  bottom: 50%;
  left: 7px;
  width: 1px;
  background-color: #fff;
  z-index: 1;
}

.zan-steps--vsteps .zan-steps__step--last-child .zan-steps__title::before {
  content: '';
  position: absolute;
  top: 50%;
  bottom: 0%;
  left: 7px;
  width: 1px;
  background-color: #fff;
  z-index: 1;
}