.sec1 .sec-content {
  display: flex;
  justify-content: space-between;
  padding-top: 0;
}

.sec1 .sec-content .text-box {
  margin-left: 86px;
}

.sec1 .sec-content .title {
  font-size: 26px;
  color: #333;
  line-height: 26px;
  line-height: 26px;
  margin-top: 20px;
  font-weight: 600;
}

.sec1 .sec-content .desc {
  font-size: 18px;
  line-height: 30px;
  color: #666;
  margin-top: 40px;
}

.sec1 .sec-content .btn-solid {
  margin-top: 80px;
}

.sec2 {
  background: #F9FAFF;
  padding-bottom: 0;
}

.sec2 .sec-content {
  padding: 0;
}

.sec2 .sec-content .item-box {
  padding: 60px 0;
}

.sec2 .sec-content .item-box:nth-child(2n) {
  background: #fff;
}

.sec2 .item {
  display: flex;
  align-items: center;
}

.sec2 .item .title {
  font-size: 28px;
  font-weight: 600;
  color: #333;
  line-height: 40px;
}

.sec2 .item .desc {
  color: #666;
  font-size: 18px;
  line-height: 30px;
  margin-top: 30px;
}

.sec2 .item .btn-solid {
  margin-top: 40px;
}

.sec2 .sec-content .item-box:nth-child(1) .img-box {
  margin-left: 66px;
}

.sec2 .sec-content .item-box:nth-child(1) .text-box {
  margin-left: 70px;
}

.sec2 .sec-content .item-box:nth-child(2) .img-box {
  margin-left: 197px;
}

.sec2 .sec-content .item-box:nth-child(3) .text-box {
  margin-left: 43px;
}

.sec3 .item-box {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.sec3 .item {
  width: 337px;
  height: 408px;
  margin-right: 54px;
  border-radius: 4px;
  border: 1px solid #E2E2E2;
  text-align: center;
}

.sec3 .item:hover {
  box-shadow: 2px 4px 18px 0px rgba(3, 21, 69, 0.1);
}

.sec3 .item:last-child {
  margin-right: 0;
}

.sec3 .item .img-box {
  height: 279px;
  display: flex;
  justify-content: center;
  align-items: center;
}

.sec3 .item .title {
  font-size: 22px;
  font-weight: 600;
  color: #333;
  line-height: 22px;
}

.sec3 .item .desc {
  font-size: 18px;
  line-height: 30px;
  color: #666;
  margin-top: 20px;
}

.sec4 {
  background: #F9FAFF;
}

.sec4 .swiper-container {
  background: #72A4FF;
}

.sec4 .swiper-slide {
  width: 1200px;
  height: 479px;
  background: #72A4FF;
  padding: 60px 68px;
  display: flex;
}

.sec4 .swiper-slide .text-box {
  margin-left: 61px;
}

.sec4 .swiper-slide .text-box .title {
  font-size: 28px;
  font-weight: 600;
  line-height: 28px;
  color: #FFFFFF;
  margin-top: 22px;
}

.sec4 .swiper-slide .text-box .desc {
  font-size: 18px;
  color: #FEFEFE;
  line-height: 30px;
  margin-top: 40px;
}

.sec4 .swiper-slide .text-box .btn {
  width: 136px;
  height: 50px;
  border-radius: 5px;
  margin-top: 50px;
  font-size: 16px;
  text-align: center;
  line-height: 50px;
  border: solid 1px #fff;
  color: #fff;
}

.sec4 .swiper-pagination {
  display: inline-block;
  width: auto;
  left: auto;
  right: 57px;
  bottom: 23px;
}

.sec4 .swiper-pagination .swiper-pagination-bullet {
  width: 4px;
  height: 20px;
  border-radius: 2px;
  background: #4496FF;
  margin: 0 4px;
}

.sec4 .swiper-pagination .swiper-pagination-bullet-active {
  height: 36px;
  background: #fff;
}