.container {
  width: 1200px;
  padding-right: 0px;
  padding-left: 0px;
  margin: 0 auto;
}
.experts-block1 {
  width: 100%;
  height: 480px;
}
.experts-block1-banner {
  height: 480px;
  background-image: url('../assets/yst-img/team-banner.jpg');
  background-size: 100% 100%;
  zoom: 1;
  background-size: cover;
  -webkit-background-size: cover;
  -o-background-size: cover;
  background-position: center 0;
}
.experts-block1-title {
  font-family: PingFangSC-Semibold;
  font-size: 40px;
  color: #FFFFFF;
  letter-spacing: 0;
  font-weight: 600;
  padding-top: 172px;
}
.experts-block1-line{
  width: 80px;
  height: 2px;
  margin: 24px 0;
  background: #FFFFFF;
}
.experts-block1-title-en {
  font-family: PingFangSC-Regular;
  font-size: 16px;
  color: #FFFFFF;
  line-height: 24px;
  font-weight: 400;
}

.experts_block2 {
  padding: 0 0 40px;
  background-color: #fafafa;
}
.experts_block2_box {
  position: relative;
}

.experts_block2_item {
  position: relative;
  display: inline-block;
  margin-top: 40px;
  width: 23%;
  margin-right: 1%;
  background: #ffffff;
  box-shadow: 0 0 16px 0 rgba(0, 0, 0, 0.08);
  border-radius: 4px;
  height: 408px;
  vertical-align: top;
  overflow: hidden;
}
.experts_block2_item img {
  width: 100%;
}
.experts_block2_bottom {
  margin: 20px;
  font-family: PingFangSC-Medium;
}
.experts_block2_name {
  margin-bottom: 8px;
  font-size: 20px;
  color: #333333;
  line-height: 28px;
  font-weight: 500;
}
.experts_block2_introduce {
  margin-bottom: 28px;
  font-size: 14px;
  color: #666666;
  line-height: 22px;
  font-weight: 400;
}

.experts_block2_details {
  position: absolute;
  top: 0;
}

.experts_block2_details_item {
  opacity: 0;
  height: 408px;
  position: absolute;
  top: 0;
  background: rgba(255, 255, 255, 0.96);
  border-radius: 4px;
  overflow: hidden;
  overflow-y: scroll;
  font-family: PingFangSC-Medium;
  vertical-align: top;
}

.experts_block2_details_item_active {
  opacity: 1;
  animation-name: experts;
  animation-duration: 0.5s;
  animation-timing-function: linear;
  animation-delay: 0s;
  animation-direction: alternate;
  animation-play-state: running;
}

@keyframes experts {
  0% {
    left: 0px;
    top: 408px;
  }
  25% {
    left: 0px;
    top: 300px;
  }
  50% {
    left: 0px;
    top: 200px;
  }
  75% {
    left: 0px;
    top: 100px;
  }
  100% {
    left: 0px;
    top: 0px;
  }
}

.experts_block2_details_item_active1 {
  opacity: 0;
  animation-name: expertsdown;
  animation-duration: 0.5s;
  animation-timing-function: linear;
  animation-delay: 0s;
  animation-direction: alternate;
  animation-play-state: running;
}

@keyframes expertsdown {
  0% {
    opacity: 1;
    left: 0px;
    top: 0px;
  }
  25% {
    opacity: 1;
    left: 0px;
    top: 100px;
  }
  50% {
    opacity: 1;
    left: 0px;
    top: 200px;
  }
  75% {
    opacity: 1;
    left: 0px;
    top: 300px;
  }
  100% {
    opacity: 0;
    left: 0px;
    top: 408px;
  }
}

.experts_block2_details_item::-webkit-scrollbar {
  width: 0 !important;
}
.experts_block2_details_name {
  margin: 20px 20px 8px;
  font-size: 20px;
  color: #333333;
  line-height: 28px;
  font-weight: 500;
}
.experts_block2_details_introduce {
  margin: 0 20px;
  font-size: 14px;
  color: #666666;
  line-height: 22px;
  font-weight: 400;
}
.experts_block2_details_content {
  margin: 16px 20px;
  font-size: 14px;
  color: #333333;
  line-height: 22px;
  font-weight: 400;
}
/* .experts_block2_details_item::after {
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  content: '';
  height: 20px;
  background-image: linear-gradient(
    180deg,
    rgba(255, 255, 255, 0.4) 0%,
    #ffffff 26%
  );
} */