.banner {
  height: 900px;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  color: #fff;
}

.banner .word {
  margin-top: 300px;
}
.banner .p1 {
  font-size: 40px;
  max-width: 480px;
}
.banner .split {
  width: 70px;
  height: 3px;
  display: inline-block;
  background-color: #fff;
}

.banner .p2 {
  font-size: 24px;
  margin-top: 30px;
}

.content1 {
  display: flex;
}
.content1 .left {
  flex: 4;
  padding-top: 250px;
  background-color: #f4f4f4;
}
.content1 .left .box {
  margin-left: 200px;
}
.content1 .left .box .top {
  border-left: 2px solid #3453be;
  padding-left: 30px;
}

.content1 .left .box h3 {
  font-size: 24px;
  color: #002c7a;
}
.content1 .left .box h4 {
  font-size: 20px;
  color: #002c7a;
}
.content1 .right {
  flex: 6;
  background-repeat: no-repeat;
  background-size: cover;
  background-position: center;
  height: 820px;
}

.left .btn,
.content3 .btn {
  background-color: #d9dada;
  width: 200px;
  line-height: 50px;
  border-radius: 30px;
  text-align: center;
  color: #231815;
  margin-top: 100px;
}
.left .btn span,
.content3 .btn span {
  display: inline-block;
  border-radius: 50%;
  vertical-align: middle;

  margin-left: 5px;
}
.left .btn .dot1,
.content3 .btn .dot1 {
  width: 9px;
  height: 9px;
  background-color: #b2b2b3;
}
.left .btn .dot2,
.content3 .btn .dot2 {
  width: 12px;
  height: 12px;
  background-color: #6a6564;
}
.left .btn .dot3,
.content3 .btn .dot3 {
  width: 15px;
  height: 15px;
  background-color: #231815;
}

.content2 {
  background-repeat: no-repeat;
  background-size: cover;
  background-position: center;
  height: 820px;

  display: flex;
}

.content2 .left {
  flex: 4;
  padding-top: 250px;
}
.content2 .right {
  flex: 6;
}
.content2 .left {
  flex: 4;
  padding-top: 250px;
}
.content2 .left .box {
  margin-left: 200px;
}
.content2 .left .box .top {
  border-left: 2px solid #fff;
  padding-left: 30px;
}

.content2 .left .box h3 {
  font-size: 24px;
  color: #fff;
}
.content2 .left .box h4 {
  font-size: 20px;
  color: #fff;
}

.content3 {
  padding-top: 100px;
  padding-bottom: 100px;
}
.content3 .box {
  margin-left: 200px;
}
.content3 .top {
  border-left: 2px solid #3453be;
  padding-left: 30px;
}
.content3 h3 {
  font-size: 24px;
  color: #002c7a;
}

.content3 .line {
  margin: 10px 0;
  position: relative;
}

.content3 .lineon {
  height: 3px;
  width: 60px;
  background-color: #002c7a;
  position: absolute;
  left: 0;
  top: -1px;
  visibility: hidden;
}

.content3 h4 {
  font-size: 20px;
  color: #002c7a;
}
.content3 .btn {
  margin-top: 50px;
}

.content3 .nr {
  padding: 100px 200px 0 200px;
  display: flex;
  justify-content: space-between;
}
.content3 .item {
  max-width: 20%;
}
.content3 img {
  width: 100%;
}

.content3 .line {
  height: 1px;
  background-color: #231815;
}
.content3 li {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.content3 .list {
  visibility: hidden;
}
.content3 .list li .jiantou {
  width: 18px;
  height: 18px;
  background: url(/img/jt.png) center no-repeat;
}

.content3 .list li a {
  font-size: 16px;
  line-height: 2;
  vertical-align: middle;
}

.content3 .list li:hover .jiantou {
  background: url(/img/jton.png) center no-repeat;
}

@media (max-width: 999px) {
  .banner {
    height: 200px;
  }
  .banner .word {
    margin-top: 10px;
  }

  .banner .p1 {
    font-size: 16px;
    max-width: 80%;
  }
  .banner .split {
    height: 1px;
  }
  .banner .p2 {
    font-size: 14px;
    margin-top: 10px;
  }
  .content1,
  .content2,
  .content3 {
    display: block;
  }
  .onebg {
    display: none;
  }
  .content1 .left {
    padding-top: 40px;
    padding-bottom: 40px;
    /* background: url(/img/img1.jpg) center no-repeat;
    background-size: cover; */
  }
  .content1 .left .box,
  .content2 .left .box,
  .content3 .box {
    width: 80%;
    margin: 0 auto;
  }
  .left .btn,
  .content3 .btn {
    margin-top: 30px;
    line-height: 40px;
    width: 150px;
  }
  .left .btn .dot1,
  .content3 .btn .dot1 {
    width: 5px;
    height: 5px;
  }
  .left .btn .dot2,
  .content3 .btn .dot2 {
    width: 8px;
    height: 8px;
  }
  .left .btn .dot3,
  .content3 .btn .dot3 {
    width: 11px;
    height: 11px;
  }

  .content1 .left .box h3,
  .content2 .left .box h3,
  .content3 h3 {
    font-size: 18px;
  }
  .content1 .left .box h4,
  .content2 .left .box h4,
  .content3 h4 {
    font-size: 16px;
  }
  .content1 .right {
    height: 200px;
  }
  .content2 {
    height: 200px;
  }
  .content2 .left {
    padding-top: 40px;
  }

  .content3 {
    padding-top: 40px;
    padding-bottom: 40px;
  }

  .content3 .nr {
    display: block;
    padding: 0;
    width: 80%;
    margin: 0 auto 0;
  }
  .content3 .item {
    max-width: 100%;
    margin-top: 40px;
  }
  .content3 .list {
    visibility: visible;
  }
}