.service {
  background: #FBFCFF;
}

.service-box {
  width: 1200px;
  margin: auto;
  display: flex;
  flex-direction: column;

  align-items: center;
  height: 740px;
}

.service-title {
  font-family: 'pingfa';
  font-weight: bold;
  font-size: 32px;

  position: relative;
  margin-top: 94px;
}

.service-title::after {
  display: block;
  content: '';
  position: absolute;
  width: 60px;
  height: 6px;
  background: #3665D9;
  bottom: -9px;
  left: 50%;
  transform: translateX(-50%);
}

.service-wrap {
  display: flex;
  align-items: center;
  margin-top: 60px;
  gap: 30px;
}

.service-wrap-item {
  width: 380px;
  height: 350px;
  transition: .5s;
  cursor: pointer;
}

.service-wrap-item:hover {
  transform: translateY(-20px);
}
.service-wrap-item:hover .service-wrap-item-mask1{
  background: linear-gradient(180deg, rgba(54, 101, 217, 0) 0%, #3665D9 100%);
}
.service-wrap-item:hover .service-wrap-item-mask2{
  background: linear-gradient(180deg, rgba(54, 101, 217, 0) 0%, #3665D9 100%);
}
.service-wrap-item:hover .service-wrap-item-mask3{
  background: linear-gradient(180deg, rgba(54, 101, 217, 0) 0%, #3665D9 100%);
}

.service-wrap-item.item1 {
  background-image: url('../images/service1.png');
}

.service-wrap-item.item2 {
  background-image: url('../images/service2.png');
}

.service-wrap-item.item3 {
  background-image: url('../images/service3.png');
}

.service-wrap-item-mask1 {
  width: 380px;
  height: 350px;

  border-radius: 10px 10px 10px 10px;
  display: flex;

  flex-direction: column;

}

.service-wrap-item-mask2 {
  width: 380px;
  height: 350px;
  background: linear-gradient(180deg, rgba(51, 51, 51, 0) 0%, #333333 100%);

  border-radius: 10px 10px 10px 10px;
  display: flex;

  flex-direction: column;

}

.service-wrap-item-mask3 {
  width: 380px;
  height: 350px;
  background: linear-gradient(180deg, rgba(51, 51, 51, 0) 0%, #333333 100%);
  border-radius: 10px 10px 10px 10px;
  display: flex;

  flex-direction: column;

}

.service-wrap-item-name {

  font-family: 'pingfa';
  font-weight: bold;
  font-size: 24px;
  color: #FFFFFF;
  text-align: center;
  margin-top: 231px;
  margin-bottom: 20px;
}

.service-wrap-item-desc {

  font-family: 'pingfa';
  font-weight: 400;
  font-size: 14px;
  color: #FFFFFF;
  text-align: center;

}

.video-box {
  width: 1200px;
  margin: auto;
  display: flex;
  flex-direction: column;

  align-items: center;
  height: 750px;
}

.video-title {
  font-family: 'pingfa';
  font-weight: bold;
  font-size: 32px;

  position: relative;
  margin-top: 94px;
}

.video-title::after {
  display: block;
  content: '';
  position: absolute;
  width: 60px;
  height: 6px;
  background: #3665D9;
  bottom: -9px;
  left: 50%;
  transform: translateX(-50%);
}

.video-wrap {
  margin-top: 60px;
}

.video-wrap-desc {

  font-family: 'pingfa';
  font-weight: bold;
  font-size: 16px;
  color: #666666;
  text-indent: 2em;
  line-height: 24px;
}

.video-wrap-card-box {
  display: flex;
  gap: 20px;
  margin-top: 50px;
  cursor: pointer;

}

.video-wrap-card-item {
  width: 280px;
  height: 270px;
  background: #FAFCFE;
  border-radius: 10px 10px 10px 10px;
  cursor: pointer;
  position: relative;
  transition: .5s;
  overflow: hidden;
}

.video-wrap-card-item.active {
  width: 600px;
  height: 270px;
  border-radius: 10px 10px 10px 10px;
}


.video-wrap-card-item-mask {
  position: absolute;
  top: 0;
  left: 0;
  width: 280px;
  height: 270px;
  background: #FAFCFE;

}

.video-wrap-card-item-mask-index {

  font-family: 'pingfa';
  font-weight: bold;
  font-size: 38px;
  color: #B3D1F8;
  margin-top: 140px;
  margin-left: 50px;
  margin-bottom: 14px;

}

.video-wrap-card-item-mask-name {

  font-family: 'pingfa';
  font-weight: bold;
  font-size: 22px;
  margin-left: 50px;

}

.video-wrap-card-item.active .video-wrap-card-item-mask {
  display: none;
}

.video-wrap-card-item-content {
  display: none;

}

.video-wrap-card-item.active .video-wrap-card-item-content {
  display: block;
}

.video-wrap-card-item-content-name {

  font-family: 'pingfa';
  font-weight: bold;
  font-size: 24px;
  color: #333333;
  margin-top: 50px;
  margin-left: 50px;
  margin-bottom: 20px;
}

.video-wrap-card-item-content-desc {
  text-indent: 2em;

  font-family: 'pingfa';
  font-weight: 400;
  font-size: 14px;
  color: #8996A5;
  margin-left: 50px;
  width: 500px;

}

.buy {
  height: 1080px;
  background: #FBFCFF;
}

.buy-box {
  width: 1200px;
  margin: auto;
  display: flex;
  flex-direction: column;

  align-items: center;
  height: 1080px;
}

.buy-title {
  font-family: 'pingfa';
  font-weight: bold;
  font-size: 32px;

  position: relative;
  margin-top: 94px;
}

.buy-title::after {
  display: block;
  content: '';
  position: absolute;
  width: 60px;
  height: 6px;
  background: #3665D9;
  bottom: -9px;
  left: 50%;
  transform: translateX(-50%);
}
.buy-desc{
  width: 1074px;

font-family: 'pingfa';
margin:0 auto;
font-weight: bold;
font-size: 16px;
color: #666666;
line-height: 24px;
text-indent: 2em;
}
.video-box-img{
  position: absolute;
  right: 10px;
  top: 0;
  z-index: 999;
}