.about-box .right .video-list {
  padding: 0.3rem 0.4rem 0.2rem 0.4rem;
  min-height: calc(100vh - 4.8rem - 0.6rem - 2.5rem - 1.1rem);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-around;
  box-sizing: border-box;
}
.about-box .right .video-list a {
  display: block;
  background-color: #fff;
  float: left;
  margin: 0 0.08rem;
  margin-bottom: 0.2rem;
}
.about-box .right .video-list a video {
  width: 2.64rem;
  height: 2rem;
}
.about-box .right .video-list a img {
  width: 2.64rem;
  height: 2rem;
}
.about-box .right .video-list::after {
  content: "";
  width: 2.64rem;
}
.about-box .right .video-box {
  width: 100%;
  position: relative;
}
.about-box .right .video-box video {
  width: 6.65rem;
  height: 3.74rem;
}
.about-box .right .video-box .play-btn {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  cursor: pointer;
}
.about-box .right .certificate-box {
  padding: 0.3rem 0.4rem 0 0.4rem;
  min-height: calc(100vh - 4.8rem - 0.6rem - 2.5rem - 1.1rem);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-around;
}
.about-box .right .certificate-box .item {
  float: left;
  display: block;
  position: relative;
  margin: 0 0.09rem;
  margin-bottom: 0.2rem;
  max-height: 3.7rem;
}
.about-box .right .certificate-box .item .title {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 2.6rem;
  height: 0.6rem;
  background: #333333;
  opacity: 0.6;
  padding: 0 0.1rem;
  text-align: center;
  font-size: 0.18rem;
  font-weight: bold;
  color: #FFFFFF;
  line-height: 0.6rem;
}
.about-box .right .certificate-box .item img {
  object-fit: contain;
  width: 2.6rem;
  height: 3.7rem;
}
.about-box .right .certificate-box::after {
  content: "";
  width: 2.78rem;
}
.about-box .right .news-list {
  padding: 0.4rem 0.24rem;
  min-height: calc(100vh - 4.8rem - 0.6rem - 2.5rem - 1.1rem);
}
.about-box .right .news-list .item {
  margin-bottom: 20px;
  height: 1.54rem;
}
.about-box .right .news-list .item .pro_pic {
  width: 2.3rem;
  height: 1.54rem;
}
.about-box .right .news-list .item .right {
  width: 4.45rem;
  height: 1.54rem;
}
.about-box .right .news-list .item .right .title {
  font-size: 0.26rem;
  font-weight: bold;
  margin-bottom: 0.16rem;
}
.about-box .right .news-list .item .right p {
  font-size: 0.2rem;
  color: #666666;
  line-height: 0.3rem;
  max-height: 0.55rem;
  min-height: 0.52rem;
}
.about-box .right .news-list .item .right .date span {
  margin-left: 0.06rem;
  font-size: 0.18rem;
  color: #999999;
}
.about-box .right .news-list .item .right .date img {
  margin-top: 1px;
  width: 0.17rem;
  height: 0.17rem;
}
.about-box .right .news-list .item .right .more {
  font-size: 0.18rem;
  color: #017AD5;
}
.about-box .right .article {
  padding: 0 0.5rem;
  padding-bottom: 0.2rem;
  min-height: calc(100vh - 4.8rem - 0.6rem - 2.5rem - 1.1rem);
}
.about-box .right .article .title {
  font-size: 0.3rem;
  margin-top: 0.4rem;
  margin-bottom: 0.25rem;
}
.about-box .right .article .date {
  font-size: 0.16rem;
  margin-bottom: 0.5rem;
}
.about-box .right .article .richtext {
  padding-bottom: 0.6rem;
  max-width: 100%;
  overflow: auto;
}
.about-box .right .article .richtext img {
  max-width: 100%;
  height: auto!important;
  margin: 0 !important;
}
.about-box .right .article .richtext table {
  max-width: 100%;
}
.about-box .right .article .qualification_img {
  max-width: 5.2rem;
}
.about-box .right .timeline-box {
  background: #f9f9f9;
}
.about-box .right .timeline-box .main-title {
  font-size: 30px;
  margin-top: 40px;
  margin-bottom: 25px;
}
.about-box .right .timeline-box .year {
  margin-top: 25px;
  position: relative;
  height: 37px;
}
.about-box .right .timeline-box .year img {
  width: 37px;
  height: 37px;
}
.about-box .right .timeline-box .year span {
  position: absolute;
  font-size: 24px;
  font-weight: bold;
  color: #017AD5;
  line-height: 37px;
  left: -105px;
}
.about-box .right .timeline-box .timeline {
  padding-bottom: 1rem;
}
.about-box .right .timeline-box .timeline ul {
  display: block;
  width: 6.8rem;
  padding-top: 0.4rem;
  background: url(../images/about/timeline_bg.png) center repeat-y;
}
.about-box .right .timeline-box .timeline ul li:hover {
  background: url(../images/about/time_dot_active.png) center no-repeat;
}
.about-box .right .timeline-box .timeline ul li:hover .item {
  background: #017AD5;
  color: #FFFFFF;
}
.about-box .right .timeline-box .timeline ul li:hover .item::before {
  content: "";
  width: 0;
  height: 0;
  position: absolute;
  top: 50%;
  transform: translate(0, -50%);
  border-top: 0.1rem solid transparent;
  border-bottom: 0.1rem solid transparent;
}
.about-box .right .timeline-box .timeline ul li:hover .item .title {
  position: relative;
}
.about-box .right .timeline-box .timeline ul li:hover .item .title::after {
  position: absolute;
  content: "";
  width: 0.38rem;
  height: 0.42rem;
  background: url(../images/about/date_active.png) center no-repeat;
  background-size: 100% 100%;
  top: 50%;
  margin-left: 0.1rem;
  transform: translate(0, -50%) scale(0.6);
}
.about-box .right .timeline-box .timeline ul li:hover:nth-child(odd) .item::before {
  left: -0.2rem;
  border-left: 0.1rem solid transparent;
  border-right: 0.1rem solid #017AD5;
}
.about-box .right .timeline-box .timeline ul li:hover:nth-child(even) .item::before {
  right: -0.2rem;
  border-left: 0.1rem solid #017AD5;
  border-right: 0.1rem solid transparent;
}
.about-box .right .timeline-box .timeline ul li {
  display: flex;
  align-items: center;
  cursor: pointer;
  background: url(../images/about/time_dot.png) center no-repeat;
}
.about-box .right .timeline-box .timeline ul li:nth-child(odd) {
  padding-left: 3.9rem;
  padding-right: 0;
}
.about-box .right .timeline-box .timeline ul li:nth-child(odd) .item::before {
  left: -0.2rem;
  border-left: 0.1rem solid transparent;
  border-right: 0.1rem solid #fff;
}
.about-box .right .timeline-box .timeline ul li:nth-child(even) {
  padding-left: 0;
  padding-right: 3.9rem;
}
.about-box .right .timeline-box .timeline ul li:nth-child(even) .item::before {
  right: -0.2rem;
  border-left: 0.1rem solid #fff;
  border-right: 0.1rem solid transparent;
}
.about-box .right .timeline-box .timeline ul li .item {
  position: relative;
  box-shadow: 0.02rem 0.04rem 0.15rem 0.01rem rgba(102, 102, 102, 0.1);
  background-color: #fff;
  padding: 0.25rem;
}
.about-box .right .timeline-box .timeline ul li .item::before {
  content: "";
  width: 0;
  height: 0;
  position: absolute;
  top: 50%;
  transform: translate(0, -50%);
  border-top: 0.1rem solid transparent;
  border-bottom: 0.1rem solid transparent;
}
.about-box .right .timeline-box .timeline ul li .item .des {
  width: 2.34rem;
  display: -webkit-box;
  overflow: hidden;
  text-overflow: ellipsis;
  -webkit-box-orient: vertical;
  margin-top: 0.07rem;
  font-size: 0.22rem;
  line-height: 0.3rem;
}
.about-box .right .timeline-box .timeline ul li .item .title {
  font-size: 0.26rem;
  font-weight: bold;
  position: relative;
}
.about-box .right .timeline-box .timeline ul li .item .title::after {
  position: absolute;
  content: "";
  width: 0.38rem;
  height: 0.42rem;
  background: url(../images/about/date.png) center no-repeat;
  background-size: 100% 100%;
  transform: translate(0, -50%) scale(0.6);
  top: 50%;
  margin-left: 0.1rem;
}