.he_timeline_swiper {
  width: 2rem;
  margin: 0.24rem 0;
  overflow: hidden;
}

.he_timeline_swiper::after {
  content: "";
  position: absolute;
  left: 1.33rem;
  top: 0;
  bottom: 0;
  width: 1px;
  background-image: url(../img/line_1.png);
  background-size: 100% 100%;
}

.he_timeline_swiper dl {
  position: relative;
  margin: 0.24rem 0;
  height: 0.24rem;
  cursor: pointer;
}

.he_timeline_swiper dt {
  position: relative;
  top: 0.05rem;
  font-size: 0.21rem;
  color: #666;
  font-family: Arial, Helvetica, sans-serif;
  transition: 0.4s;
  padding-left: 0.14rem;
  transform: scale(1);
  transform-origin: center;
}

.he_timeline_swiper dd {
  position: absolute;
  right: 0.68rem;
  top: 50%;
  transform: translateY(-50%);
  width: 0.12rem;
  height: 0.01rem;
  background-color: #5a5a5a;
}

.he_timeline_swiper dd i {
  position: absolute;
  right: 0;
  width: 0.06rem;
  height: 0.005rem;
  background-color: #5a5a5a;
}

.he_timeline_swiper dd i:nth-child(1) {
  top: 0.17rem;
}

.he_timeline_swiper dd i:nth-child(2) {
  top: 0.29rem;
}

.he_timeline_swiper dd i:nth-child(3) {
  top: 0.41rem;
}

.he_timeline_swiper dd i:nth-child(4) {
  top: 0.53rem;
}

.he_timeline_swiper .swiper-slide.on dl dt {
  transform: scale(1.1);
  transform-origin: center;
  color: #fff;
  transition: 0.4s;
}

.he_timeline_swiper .swiper-slide.on dd {
  background-color: #fff;
  transition: 0.4s;
}