.title {
  font-size: 40px;
  color: #323232;
  line-height: 50px;
  text-align: center;
  padding: 10px 0;
}
.details {
  width: 990px;
  font-size: 18px;
  color: #666;
  line-height: 30px;
  text-align: center;
  padding: 10px 0;
  margin: 0 auto;
}
.milepost {
  padding: 110px 0 70px;
}
.milepost-list {
  padding: 60px 0;
  width: 990px;
  margin: 0 auto;
}
.milepost-list-item.right {
  padding: 17px 0 17px 39px;
  margin-left: 50%;
  border-left: 4px solid #ccc;
  position: relative;
}
.milepost-list-item.right::before {
  content: "";
  display: block;
  width: 22px;
  height: 22px;
  border: 4px solid #2d6a87;
  background: #fff;
  border-radius: 50%;
  position: absolute;
  left: -17px;
  top: 50%;
  margin-top: -16px;
}
.milepost-list-item.left {
  width: 50%;
  padding: 17px 0;
  border-right: 4px solid #ccc;
  position: relative;
}
.milepost-list-item.left::before {
  content: "";
  display: block;
  width: 22px;
  height: 22px;
  border: 4px solid #2d6a87;
  background: #fff;
  border-radius: 50%;
  position: absolute;
  right: -17px;
  top: 50%;
  margin-top: -16px;
}
.milepost-list-item-info {
  width: 450px;
  height: 115px;
  display: flex;
  border: 1px solid #c8c7c7;
  position: relative;
  justify-content: center;
  flex-wrap: wrap;
  align-items: center;
  cursor: default;
}
.milepost-list-item-info:hover {
  background: #2d6a87;
  color: #fff;
}
.milepost-list-item-info::before {
  position: absolute;
  left: -31px;
  top: 50%;
  content: "";
  margin-top: -15px;
  width: 0;
  height: 0;
  border: 15px solid #c8c7c7;
  border-left-color: transparent;
  border-top-color: transparent;
  border-bottom-color: transparent;
}
.milepost-list-item-info::after {
  position: absolute;
  left: -29px;
  top: 50%;
  margin-top: -15px;
  content: "";
  width: 0;
  height: 0;
  border: 15px solid #fff;
  border-left-color: transparent;
  border-top-color: transparent;
  border-bottom-color: transparent;
}
.milepost-list-item-info:hover::after {
  border: 15px solid #2d6a87;
  border-left-color: transparent;
  border-top-color: transparent;
  border-bottom-color: transparent;
}
.left .milepost-list-item-info::before {
  left: auto;
  right: -31px;
  border: 15px solid #c8c7c7;
  border-right-color: transparent;
  border-top-color: transparent;
  border-bottom-color: transparent;
}
.left .milepost-list-item-info::after {
  left: auto;
  right: -29px;
  border: 15px solid #fff;
  border-right-color: transparent;
  border-top-color: transparent;
  border-bottom-color: transparent;
}
.left .milepost-list-item-info:hover::after {
  border: 15px solid #2d6a87;
  border-right-color: transparent;
  border-top-color: transparent;
  border-bottom-color: transparent;
}
.milepost-list-item-right {
  justify-content: center;
  align-items: center;
  width: 240px;
  margin: 0 17px;
}
.left .milepost-list-item-right {
  text-align: right;
}
.milepost-list-item-right .time {
  font-size: 20px;
  line-height: 30px;
  font-weight: 600;
}
.milepost-list-item-right .info {
  font-size: 20px;
  line-height: 24px;
  padding: 5px 0;
}
.icon {
  width: 100px;
  height: 100px;
  margin: 0 17px;
  background-image: url("../../icon/icon.png");
  background-repeat: no-repeat;
}
.left .icon {
  order: 1;
}
.icon1 {
  background-position: -400px -100px;
}
.milepost-list-item-info:hover .icon1 {
  background-position: -400px 0;
}
.icon2 {
  background-position: -300px -100px;
}
.milepost-list-item-info:hover .icon2 {
  background-position: -300px 0;
}
.icon3 {
  background-position: -500px -100px;
}
.milepost-list-item-info:hover .icon3 {
  background-position: -500px 0;
}
.icon4 {
  background-position: 0 -100px;
}
.milepost-list-item-info:hover .icon4 {
  background-position: 0 0;
}
.icon5 {
  background-position: -100px -100px;
}
.milepost-list-item-info:hover .icon5 {
  background-position: -100px 0;
}
.icon6 {
  background-position: -200px -100px;
}
.milepost-list-item-info:hover .icon6 {
  background-position: -200px 0;
}
.video {
  padding: 110px 0 70px;
  background: #f2f2f2;
}
.video-box {
  padding-top: 50px;
  margin: 0 auto;
  width: 990px;
}