.main-1 {
  background-color: #f0f3f7;
  background-image: url("../images/cbg1.png");
  background-size: cover;
  background-position: center;
}
.main-1 .content {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  row-gap: 3rem;
  padding: 2rem 0;
  background-color: #fff;
}
.main-1 .item {
  padding: 0 3rem;
  border-right: 1px solid #eee;
}
.main-1 .item:nth-of-type(3n) {
  border: none;
}
.main-1 .item .i {
  width: 3.9rem;
  height: 3.9rem;
}
.main-1 .item h6 {
  font-size: 1.2rem;
  margin-top: 1rem;
}
.main-1 .item p {
  font-size: 0.8rem;
  line-height: 1.6;
  color: #666;
  margin-top: 0.5rem;
}
.main-2 {
  padding-bottom: 8rem;
  background-color: #4789c6;
  background-image: url("../images/cbg2.jpg");
  background-size: cover;
  background-position: center;
}
.main-2 .content {
  display: flex;
  justify-content: space-between;
}
.main-2 .accordion {
  width: 32.5rem;
  padding-top: 1rem;
}
.main-2 li {
  border-bottom: 1px solid #fff;
}
.main-2 .link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 0;
}
.main-2 .link h6 {
  font-size: 1.2rem;
  color: #fff;
  font-weight: normal;
}
.main-2 .link i {
  position: relative;
  width: 0.8rem;
  border-bottom: 1px solid #fff;
}
.main-2 .link i::after {
  content: "";
  position: absolute;
  top: 0;
  left: 50%;
  width: 0.8rem;
  border-bottom: 1px solid #fff;
  transform: translateX(-50%) rotate(90deg);
  transition: all ease 0.3s;
}
.main-2 .open .link i::after {
  transform: translateX(-50%);
}
.main-2 .submenu {
  transition: none;
  padding-bottom: 1rem;
}
.main-2 .submenu,
.main-2 .submenu * {
  line-height: 1.8;
  font-size: 0.8rem;
  color: #fff;
}
.main-3 {
  background-color: #f0f3f7;
}
.main-3 .content {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.7rem;
}
.main-3 .content .item {
  padding: 0 2rem 2rem;
  background-color: #fff;
}
.main-3 .content .item:hover .num {
  background-image: url("../images/cib2.png");
}
.main-3 .content .item:hover p {
  color: #1b5fc8;
}
.main-3 .content .num {
  width: 2.3rem;
  height: 2.7rem;
  padding: 0.4rem;
  margin-bottom: 1rem;
  font-size: 1.2rem;
  text-align: center;
  color: #fff;
  background-image: url("../images/cib1.png");
  background-size: 100%;
  background-repeat: no-repeat;
  background-position: top;
}
.main-3 .content p {
  font-size: 1.2rem;
  margin-bottom: 0.5rem;
}
.main-3 .content span {
  font-size: 0.8rem;
  color: #666;
}
.main-4 {
  padding: 0;
}
.main-4 .content {
  display: flex;
}
.main-4 .content > div {
  width: 50%;
  padding: 3rem 2rem;
}
.main-4 .coo {
  position: relative;
}
.main-4 .coo .swiper {
  margin-top: 4rem;
}
.main-4 .coo .swiper-slide {
  display: flex;
  flex-wrap: wrap;
}
.main-4 .coo .swiper-slide .img-auto {
  width: calc(100% / 5);
  background-image: url("../images/coob.png");
  background-size: 100%;
  background-color: transparent;
}
.main-4 .coo .swiper-slide .img-auto:nth-of-type(n+5) {
  margin-top: -5%;
}
.main-4 .coo .swiper-slide .img-auto:nth-of-type(9n + 1) {
  margin-left: calc(100% / 5 / 2);
}
.main-4 .coo .swiper-slide .img-auto::before {
  padding-top: 110%;
}
.main-4 .coo .swiper-slide .img-auto img {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 60%;
  height: 60%;
  object-fit: scale-down;
  transform: translate(-50%, -50%);
}
.main-4 .coo .swiper-pagination {
  bottom: 4rem;
}
.main-4 .coo .swiper-pagination .swiper-pagination-bullet {
  width: 0.6rem;
  height: 0.6rem;
}
.main-4 .map {
  background-color: #fafcff;
}
.main-4 .map .img {
  margin-top: -4rem;
}
.main-5 {
  background-color: #f0f3f7;
  background-image: url("../images/cbg2.png");
  background-size: cover;
}
.main-5 .content {
  display: flex;
  justify-content: center;
}
.main-5 .item {
  padding: 0 3rem 1.5rem;
  border-bottom: 0.1rem solid transparent;
}
.main-5 .item:hover {
  border-color: #afafaf;
}
.main-5 .item .i {
  width: 2rem;
  height: 2rem;
  margin-bottom: 0.5rem;
}
.main-5 .item p {
  margin-bottom: 0.5rem;
  color: #999;
}
.main-5 .item span {
  font-size: 1.5rem;
}
@media screen and (max-width: 768px) {
  .main-1 .content {
    grid-template-columns: 1fr;
  }
  .main-1 .item {
    padding: 0 1rem;
  }
  .main-2 .content {
    flex-direction: column;
  }
  .main-2 .accordion {
    width: 100%;
  }
  .main-3 .content {
    grid-template-columns: repeat(2, 1fr);
    gap: 0.5rem;
  }
  .main-3 .content .item {
    padding: 0 1rem 1rem;
  }
  .main-3 .content p {
    font-size: 1rem;
  }
  .main-4 .content {
    flex-direction: column;
  }
  .main-4 .content > div {
    width: 100%;
  }
  .main-4 .coo .swiper-pagination {
    bottom: 1rem;
  }
  .main-5 .content {
    flex-direction: column;
  }
}