.title {
  margin-top: 89px;
}
.title .img {
  display: block;
  width: 26.3125rem;
}
.box {
  margin: 91px 0 50px;
  display: flex;
}
.box > .lb.fixed {
  position: fixed;
  top: 110px;
}
.box > .lb .item {
  width: 113px;
  margin-bottom: 32px;
}
.box > .lb .item:nth-child(1) .sub_list {
  height: 148px;
}
.box > .lb .item.active .sub_title {
  color: #0062B1;
  position: relative;
}
.box > .lb .item.active .sub_title::after {
  content: '';
  display: block;
  width: 100%;
  height: 2px;
  background-color: #0979C5;
  position: absolute;
  bottom: -10px;
}
.box > .lb .item .sub_title {
  font-size: 26px;
  font-weight: bold;
  color: #D4D4D4;
  line-height: 30px;
  cursor: pointer;
}
.box > .lb .item .sub_list {
  margin: 20px 0 0 1.25rem;
  height: 0;
  overflow: hidden;
  transition: height 1s;
}
.box > .lb .item .sub_list .sub_item {
  font-size: 16px;
  color: #D4D4D4;
  line-height: 30px;
  cursor: pointer;
}
.box > .lb .item .sub_list .sub_item.active {
  color: #0062B1;
}
.box > .lb .item .sub_list .sub_item:nth-child(n+2) {
  margin-top: 29px;
}
.box > .rb {
  margin-left: 5rem;
  padding-left: 3.375rem;
  border-left: 1px solid #cccccc;
  flex: 1;
}
.box > .rb.scroll {
  margin-left: 12rem;
}
.box > .rb .item .year {
  font-size: 26px;
  font-weight: bold;
  color: #0062B1;
  line-height: 30px;
}
.box > .rb .item .it-box {
  margin-top: 28px;
  display: flex;
  flex-wrap: wrap;
}
.box > .rb .item .it-box .chin {
  font-size: 16px;
  color: #373737;
  line-height: 24px;
  margin-top: 16px;
}
.box > .rb .item .it-box .eng {
  font-size: 14px;
  color: #B5B5B5;
  line-height: 24px;
  margin-top: 16px;
}
.box > .rb .item .it-box .it {
  width: 25.625rem;
  margin-bottom: 1.5rem;
}
.box > .rb .item .it-box .it.ml {
  margin-left: 6.25rem;
}
.box > .rb .item .it-box .it.it1 {
  width: 100%;
}
.box > .rb .item .it-box .it.it1 .pic {
  display: flex;
  justify-content: flex-start;
  height: 15.8125rem;
}
.box > .rb .item .it-box .it.it1 .pic .it1-pic {
  margin-right: 32px;
  width: 27.6875rem;
  height: 15.8125rem;
}
.box > .rb .item .it-box .it.it1 .head {
  margin-top: 16px;
  font-size: 20px;
  font-weight: bold;
  color: #0062B1;
  line-height: 30px;
}
.box > .rb .item .it-box .it .pic {
  width: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
}
.box > .rb .item .it-box .it .pic .img {
  display: block;
  width: 100%;
  height: 100%;
  margin: 0 auto;
}
.box > .rb .item .it-box .it .pic.pic1 .img {
  width: 13.5625rem;
}
.box > .rb .item .it-box .it .pic.pic2 {
  height: 17.625rem;
}
.box > .rb .item .it-box .it .pic.pic2 .img {
  width: 12.0625rem;
}
.box > .rb .item .it-box .it .pic.pic3 {
  height: 17.5rem;
}
.box > .rb .item .it-box .it .pic.pic3 .img {
  width: 18.75rem;
}
.box > .rb .item .it-box .it .pic.pic4 .img {
  width: 17.125rem;
}
.box > .rb .item .it-box .it .pic.pic5 {
  height: 22.0625rem;
}
.box > .rb .item .it-box .it .pic.pic6 {
  height: 25.5625rem;
}
.box > .rb .item .it-box .it .pic.pic7 {
  height: 15.1875rem;
}
.box > .rb .item .it-box .it .pic.pic7 .img {
  width: 10.1875rem;
}
.box > .rb .item.lr .it-box {
  display: flex;
}
.box > .rb .item.lr .it-box .pic {
  width: 24.9375rem;
  height: 15.5rem;
}
.box > .rb .item.lr .it-box .pic .img {
  display: block;
  width: 100%;
  height: 100%;
}
.box > .rb .item.lr .it-box .rb {
  flex: 1;
  margin-left: 46px;
}
.box > .rb .item.lr .it-box .rb .head {
  font-size: 20px;
  font-weight: bold;
  color: #0062B1;
  line-height: 30px;
}
.box > .rb .item:nth-child(n+2) {
  padding-top: 41px;
  margin-top: 41px;
  border-top: 1px solid #898686;
}