.about__history {
  font-family: PingFangSC-Regular, PingFangSC, 'Microsoft YaHei';
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
  -webkit-justify-content: center;
      -ms-flex-pack: center;
          justify-content: center;
}
.about__history ul {
  padding: 0;
  margin-top: -0.9rem;
}
.about__history ul li {
  list-style: none;
}
.about__history .main-part {
  position: relative;
  width: 12rem;
  padding: 0.64rem 0.62rem 0.64rem 0.4rem;
}
.about__history .event-item .event-top {
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
  -webkit-align-items: center;
      -ms-flex-align: center;
          align-items: center;
}
.about__history .event-item .event-year {
  height: 0.47rem;
  font-size: 0.4rem;
  font-family: DINAlternate-Bold, DINAlternate, 'Microsoft YaHei';
  font-weight: bold;
  color: #0b82f1;
  line-height: 0.47rem;
  margin-right: 0.24rem;
}
.about__history .event-item .event-title {
  height: 0.45rem;
  font-size: 0.32rem;
  font-weight: 500;
  color: #333333;
  line-height: 0.45rem;
  font-family: PingFangSC-Medium, PingFang SC, 'Microsoft YaHei';
}
.about__history .event-item .event-body {
  font-size: 0.22rem;
  color: #666666;
  line-height: 0.32rem;
  padding-top: 25px;
  margin-left: 0.38rem;
  padding-left: 0.63rem;
  border-left: 2px solid rgba(0, 150, 255, 0.2);
  padding-bottom: 0.64rem;
}
.about__history .event-item .event-body .month {
  white-space: nowrap;
  width: 0.72rem;
  min-width: 0.72rem;
}
.about__history .event-item .event-body li {
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
}
.about__history .event-item .event-body li .content {
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
  -webkit-flex-direction: column;
      -ms-flex-direction: column;
          flex-direction: column;
}
.about__history .event-item:last-of-type .event-body {
  border: none;
}