@keyframes move {
  0% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(30px);
  }
  100% {
    transform: translateY(0);
  }
}
#about .container1 .banner {
  position: relative;
}
#about .container1 .banner .banner_img {
  width: 100%;
}
#about .container1 .banner .down {
  position: absolute;
  bottom: 15.31%;
  left: calc(50% - 19px);
  animation: move infinite 3s linear;
  width: 37px;
  height: 37px;
  cursor: pointer;
}
#about .container1 .banner .font70 {
  font-size: 70px;
  color: #000;
  font-weight: 100;
  position: absolute;
  top: 50%;
  left: 50%;
  width: 100%;
  text-align: center;
  transform: translateX(-50%) translateY(-50%);
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  z-index: 2;
}
#about .container1 .introduce {
  padding: 100px 0 ;
  text-align: center;
}
#about .container1 .introduce .content {
  padding: 60px 0 40px;
  text-align: center;
  font-size: 16px;
  color: #333;
  line-height: 38px;
}
#about .container1 .introduce .story_title {
  text-align: center;
  margin-top: 93px;
}
#about .container1 .introduce .story_title div {
  position: relative;
  padding-left: 45px;
  display: inline-block;
}
#about .container1 .introduce .story_title img {
  position: absolute;
  left: 0;
  z-index: -1;
  transform: translateY(-50%);
}
#about .container1 .introduce .story_title text {
  font-size: 24px;
  color: #333;
}
#about .container1 .course {
  position: relative;
}
#about .container1 .course .bg {
  width: 100%;
}
#about .container1 .course .font60 {
  font-size: 56px;
  text-align: center;
  margin-bottom: 50px;
  color: #fff;
}
#about .container1 .course .content_box {
  position: absolute;
  width: 100%;
  height: 100%;
  left: 0;
  top: 0;
  z-index: 1;
  display: flex;
  justify-content: center;
  align-items: center;
}
#about .container1 .course .content_box .content {
  height: 90%;
  width: 81.25%;
  margin: auto;
  overflow-y: scroll;
}
#about .container1 .course .content_box .content .list {
  overflow-y: scroll;
}
#about .container1 .course .main-timeline {
  position: relative;
}
#about .container1 .course .main-timeline::before {
  content: "";
  display: block;
  width: 2px;
  height: 100%;
  background: #FFFFFF;
  margin: 0 0 0 -1px;
  position: absolute;
  top: 0;
  left: 50%;
}
#about .container1 .course .main-timeline .timeline {
  width: 100%;
  margin-bottom: 20px;
  position: relative;
}
#about .container1 .course .main-timeline .timeline::after {
  content: "";
  display: block;
  clear: both;
}
#about .container1 .course .main-timeline .timeline:nth-child(even) .date span {
  transform: rotateY(180deg);
}
#about .container1 .course .main-timeline .timeline:nth-child(even) .month img {
  position: relative;
  left: 1px;
}
#about .container1 .course .main-timeline .timeline:nth-child(even) .description-div img {
  right: 49px;
}
#about .container1 .course .main-timeline .timeline:nth-child(even) .title {
  text-align: right;
  padding-right: 33px;
}
#about .container1 .course .main-timeline .timeline:nth-child(odd) .month img {
  position: relative;
  left: 3px;
}
#about .container1 .course .main-timeline .timeline:nth-child(odd) .description-div img {
  left: 49px;
}
#about .container1 .course .main-timeline .timeline:nth-child(2n+2) .timeline-content {
  float: left;
}
#about .container1 .course .main-timeline .timeline-content {
  width: 47%;
  float: right;
  border-radius: 6px;
}
#about .container1 .course .main-timeline .timeline-content .description-div {
  position: relative;
  padding-top: 9px;
}
#about .container1 .course .main-timeline .date {
  display: block;
  width: 70px;
  height: 70px;
  border-radius: 50%;
  margin: 0 0 0 -36px;
  position: absolute;
  top: 0;
  left: 50%;
  font-size: 12px;
  font-weight: 900;
  text-transform: uppercase;
}
#about .container1 .course .main-timeline .date span {
  display: block;
  text-align: center;
  margin-top: -2px;
}
#about .container1 .course .main-timeline .day,
#about .container1 .course .main-timeline .yser {
  font-size: 10px;
}
#about .container1 .course .main-timeline .month {
  font-size: 18px;
}
#about .container1 .course .main-timeline .month img {
  vertical-align: top;
}
#about .container1 .course .main-timeline .title {
  margin: 0;
  font-size: 24px;
  font-weight: bold;
  color: #fff;
  text-transform: uppercase;
  letter-spacing: -1px;
  border-radius: 6px 6px 0 0;
  position: relative;
}
#about .container1 .course .main-timeline .title::after {
  content: "";
  width: 10px;
  height: 10px;
  position: absolute;
  top: 20px;
  right: -5px;
  transform: rotate(-45deg);
}
#about .container1 .course .main-timeline .description {
  padding: 15px 27px;
  margin: 0;
  background: #fff;
  border-radius: 10px;
  font-size: 16px;
  font-weight: 400;
  color: #000;
  line-height: 30px;
}
#about .container1 .course .main-timeline .description-div img {
  position: absolute;
  top: 0;
}
#about .container1 .news {
  padding: 60px 0 90px;
}
#about .container1 .news .font56 {
  font-size: 36px;
  color: #000;
  text-align: center;
  margin-bottom: 70px;
}
#about .container1 .news .list {
  width: 81.25%;
  margin: auto;
  display: flex;
  justify-content: space-between;
}
#about .container1 .news .list .item {
  width: 32%;
  flex: none;
}
#about .container1 .news .list .item .img_box {
  width: 100%;
  overflow: hidden;
}
#about .container1 .news .list .item .img_box img {
  width: 100%;
  transition: all 0.5s;
}
#about .container1 .news .list .item:hover .img_box img {
  transform: scale(1.12);
}
#about .container1 .news .list .item .info {
  width: 88.57%;
  background: #fff;
  padding: 3rem 1rem;
  position: relative;
  bottom: 38px;
  margin: auto;
  box-sizing: border-box;
}
#about .container1 .news .list .item .info > div {
  display: flex;
  justify-content: space-between;
}
#about .container1 .news .list .item .info .title .font18 {
  font-size: 18px;
  width: calc(100% - 100px);
  flex: none;
  color: #000;
}
#about .container1 .news .list .item .info .title .time {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  border: 1px solid #000;
  width: 75px;
  height: 75px;
}
#about .container1 .news .list .item .info .title .time text:first-child {
  font-size: 30px;
  color: #000;
}
#about .container1 .news .list .item .info .title .time text:last-child {
  font-size: 14px;
  color: #000;
  margin-top: 4px;
}
#about .container1 .news .list .item .info .desc {
  align-items: flex-end;
  justify-content: space-between;
  margin-top: 20px;
}
#about .container1 .news .list .item .info .desc div {
  font-size: 14px;
  line-height: 24px;
  color: #585A59;
  width: 73%;
  flex: none;
}
#about .container1 .news .list .item .info .desc span {
  color: #003DA5;
  font-size: 14px;
  padding-bottom: 4px;
}
#about .container1 .news .more {
  text-align: center;
  color: #003DA5;
  font-size: 16px;
  display: block;
}
@media screen and (max-width: 1366px) {
  #about .container1 .banner .font70 {
    font-size: 60px;
  }
  #about .container1 .course .font60 {
    font-size: 52px;
    margin-bottom: 30px;
  }
  #about .container1 .news .font56 {
    font-size: 50px;
    margin-bottom: 50px;
  }
  #about .container1 .news .list {
    width: 88%;
  }
}
/* 手机端样式 */
@media screen and (max-width: 1024px) {
  #about .container1 .banner .down {
    width: 29px;
    height: 29px;
  }
  #about .container1 .banner .font70 {
    font-size: 28px;
    flex-direction: column;
    align-items: center;
  }
  #about .container1 .banner .font70 p {
    margin-bottom: 1rem;
  }
  #about .container1 .introduce {
    padding: 40px 0 70px;
  }
  #about .container1 .introduce .content {
    padding: 30px 0;
    font-size: 14px;
    line-height: 28px;
  }
  #about .container1 .introduce .story_title {
    margin-top: 53px;
  }
  #about .container1 .introduce .story_title text {
    font-size: 14px;
  }
  #about .container1 .course .font60 {
    font-size: 30px;
  }
  #about .container1 .course .content_box .content {
    width: 92%;
    height: 90%;
  }
  #about .container1 .course .content_box .content .list {
    max-height: 90%;
  }
  #about .container1 .course .main-timeline {
    padding-bottom: 15px;
  }
  #about .container1 .course .main-timeline::before {
    left: 8px;
  }
  #about .container1 .course .main-timeline .date {
    left: 0;
    margin: 0;
  }
  #about .container1 .course .main-timeline .date span {
    text-align: left;
  }
  #about .container1 .course .main-timeline .timeline .title {
    font-size: 20px;
  }
  #about .container1 .course .main-timeline .timeline .timeline-content {
    width: calc(100% - 30px);
    margin-left: 25px;
  }
  #about .container1 .course .main-timeline .timeline:nth-child(2n+2) .timeline-content {
    float: none;
  }
  #about .container1 .course .main-timeline .timeline:nth-child(even) .title {
    text-align: left;
  }
  #about .container1 .course .main-timeline .timeline:nth-child(even) .date span {
    transform: none;
  }
  #about .container1 .course .main-timeline .description {
    padding: 15px 14px;
    font-size: 14px;
    line-height: 20px;
  }
  #about .container1 .news {
    padding: 40px 0 50px;
  }
  #about .container1 .news .font56 {
    font-size: 30px;
  }
  #about .container1 .news .list {
    width: 92%;
    flex-direction: column;
  }
  #about .container1 .news .list .item {
    width: 100%;
    margin-bottom: 1rem;
  }
  #about .container1 .news .list .item .info {
    padding: 1rem 0.6rem 0;
  }
  #about .container1 .news .list .item .info .title .font18 {
    font-size: 17px;
    width: calc(100% - 80px);
  }
  #about .container1 .news .list .item .info .title .time {
    width: 50px;
    height: 50px;
  }
  #about .container1 .news .list .item .info .title .time text:first-child {
    font-size: 19px;
  }
  #about .container1 .news .list .item .info .title .time text:last-child {
    font-size: 9px;
  }
  #about .container1 .news .list .item .info .desc {
    margin-top: 10px;
    align-items: center;
  }
  #about .container1 .news .list .item .info .desc div {
    font-size: 12px;
  }
  #about .container1 .news .list .item .info .desc span {
    font-size: 12px;
  }
  #about .container1 .news .more {
    font-size: 14px;
  }
}