.w1600 {
  width: 83.33333vw;
  margin: 0 auto
}

.sec1 {
  padding: 6.25vw 8.33333vw;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2.08333vw
}

.sec1 .item {
  width: 100%;
  position: relative;
  overflow: hidden
}

.sec1 .item img {
  width: 100%;
  height: 15.625vw;
  object-fit: cover;
  transition: all 600ms
}

.sec1 .item p {
  position: absolute;
  left: 0;
  bottom: 1.25vw;
  width: 100%;
  text-align: center;
  color: white
}

.sec1 .item:hover img {
  transform: scale(1.05)
}

.sec2 {
  padding-bottom: 6.25vw
}

.sec2 .t {
  font-weight: 600
}

.sec2 .tip {
  margin: 1.25vw 0 2.08333vw 0
}

.sec2 .cases {
  position: relative
}

.sec2 .cases .pic img,
.sec2 .cases .pic video {
  width: 100%
}

.sec2 .cases .play {
  cursor: pointer;
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%)
}

.sec2 .cases .play img {
  width: 5.20833vw
}

.sec3 {
  padding: 6.25vw 8.33333vw;
  background: #F8F8F8
}

.sec3 .list .item {
  display: flex;
  justify-content: space-between
}

.sec3 .list .item:not(:last-child) {
  margin-bottom: 2.08333vw
}

.sec3 .list .item:nth-child(2n) {
  flex-direction: row-reverse
}

.sec3 .list .item .pic {
  width: 50%;
  overflow: hidden
}

.sec3 .list .item .pic img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: all 600ms
}

.sec3 .list .item .text {
  width: 50%;
  padding: 4.84375vw 0 4.84375vw 4.0625vw;
  position: relative
}

.sec3 .list .item .text .pt {
  padding-bottom: 1.25vw;
  position: relative;
  transition: all 600ms;
  font-weight: 600
}

.sec3 .list .item .text .pt::after {
  content: '';
  display: block;
  position: absolute;
  left: 0;
  bottom: 0;
  width: 3.125vw;
  height: .15625vw;
  background: #1E6EEC
}

.sec3 .list .item .text .des {
  margin: 1.25vw 0 2.08333vw 0;
  color: #181818;
  line-height: 1.75;
  max-width: 28.75vw
}

.sec3 .list .item:hover .pic img {
  transform: scale(1.05)
}

.sec3 .list .item:hover .text .pt {
  color: #002AEC
}

.sec5 {
  padding: 6.25vw 8.33333vw
}

.sec5 .title {
  font-weight: 600
}

.sec5 .con .tags {
  border-bottom: 1px solid #E6E6E6;
  /* height: 1.5625vw; */
  display: flex;
  margin: 3.125vw 0 2.08333vw 0
}

.sec5 .con .tags span {
  font-weight: 500;
  margin-right: 2.08333vw;
  position: relative;
  display: flex;
  height: 100%;
  cursor: pointer;
  transition: all 0.6s;
  margin-bottom: 0.83333vw;
}

.sec5 .con .tags span.on {
  color: #1366EC
}

.sec5 .con .tags span.on::after {
  opacity: 1
}

.sec5 .con .tags span::after {
  content: '';
  position: absolute;
  bottom: -0.83333vw;
  left: 0;
  width: 100%;
  height: 2px;
  background: #1366EC;
  transition: all 0.6s;
  opacity: 0;
  font-size: 0.8333333vw;
}

.sec5 .con .boxs .box .pics {
  display: flex
}

.sec5 .con .boxs .box .pics .pic {
  width: 50%;
  position: relative;
  overflow: hidden
}

.sec5 .con .boxs .box .pics .pic img {
  width: 100%;
  height: 26.04167vw;
  object-fit: cover;
  transition: all 600ms
}

.sec5 .con .boxs .box .pics .pic p {
  position: absolute;
  left: 2.08333vw;
  bottom: 2.08333vw;
  color: white
}

.sec5 .con .boxs .box .pics .pic:hover img {
  transform: scale(1.05)
}

@media screen and (max-width: 768px) {
  .w1600 {
    width: 90%
  }

  .sec1 {
    padding: 30px 5% 60px 5%;
    grid-template-columns: repeat(1, 1fr);
    gap: 15px
  }

  .sec1 .item img {
    height: auto
  }

  .sec1 .item p {
    bottom: 12px
  }

  .sec2 {
    padding-bottom: 60px
  }

  .sec2 .tip {
    margin: 12px 0 20px 0
  }

  .sec2 .cases .play img {
    width: 40px
  }

  .sec3 {
    padding: 30px 5%
  }

  .sec3 .list .item {
    flex-direction: column !important
  }

  .sec3 .list .item:not(:last-child) {
    margin-bottom: 20px
  }

  .sec3 .list .item .pic {
    width: 100%
  }

  .sec3 .list .item .text {
    width: 100%;
    padding: 20px 0 0 0
  }

  .sec3 .list .item .text::before {
    width: 100px;
    height: 100px
  }

  .sec3 .list .item .text .pt {
    padding-bottom: 12px
  }

  .sec3 .list .item .text .pt::after {
    width: 60px;
    height: 2px
  }

  .sec3 .list .item .text .des {
    margin: 12px 0 20px 0;
    max-width: inherit
  }

  .sec3 .list .item .text .btn {
    padding: 8px 12px;
    border-radius: 20px
  }

  .sec3 .list .item .text .btn img {
    width: 12px
  }

  .sec5 {
    padding: 30px 5%
  }

  .sec5 .con .tags {
    margin: 30px 0 15px 0;
    flex-wrap: wrap;
    height: auto;
    border-bottom: none
  }

  .sec5 .con .tags span {
    margin-bottom: 10px;
    width: 46%;
    /* height: 32px; */
    display: flex;
    justify-content: center;
    align-items: center
  }
   .sec5 .con .tags span::after {
    width: 70%;
  }
  .sec5 .con .boxs .box .pics {
    flex-direction: column
  }

  .sec5 .con .boxs .box .pics .pic {
    width: 100%
  }

  .sec5 .con .boxs .box .pics .pic img {
    height: 210px
  }

  .sec5 .con .boxs .box .pics .pic p {
    left: 20px;
    bottom: 20px
  }
}