.main-1 {
  background-color: #f6f8fb;
  background-image: url("../images/ab2.png");
}
.main-1 .content {
  display: flex;
  align-items: center;
}
.main-1 .content > div {
  width: 50%;
}
.main-1 .content .txt {
  padding-right: 5rem;
}
.main-1 .content .txt h2 {
  font-size: 2rem;
  margin-bottom: 1rem;
}
.main-1 .content .txt .des,
.main-1 .content .txt .des * {
  color: #666;
  line-height: 1.6;
}
.main-1 .content .img-auto {
  position: relative;
}
.main-1 .content .img-auto::before {
  padding-top: calc(100% / 973 * 537);
}
.main-1 .content .img-auto::after {
  content: "";
  position: absolute;
  top: 100%;
  left: 0;
  width: 100%;
  height: 4rem;
  background-image: url("../images/ab1.png");
}
.main-1 .content1 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2.5rem;
  margin-top: 5rem;
}
.main-1 .content1 .item {
  display: flex;
  flex-direction: column;
  justify-content: center;
  border-radius: 3rem;
  padding: 3.5rem 0 3.5rem 3.5rem;
}
.main-1 .content1 .item:nth-of-type(1) {
  background-color: #2556a3;
}
.main-1 .content1 .item:nth-of-type(2) {
  background-color: #28ac42;
}
.main-1 .content1 .item:nth-of-type(3) {
  background-color: #535353;
}
.main-1 .content1 .i {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 4.5rem;
  height: 4.5rem;
}
.main-1 .content1 * {
  color: #fff;
}
.main-1 .content1 h6 {
  font-size: 2rem;
  margin-top: 2.5rem;
}
.main-1 .content1 .des {
  margin-top: 4rem;
}
.main-1 .content1 .des p {
  font-size: 1.2rem;
  line-height: 1.4;
}
.main-2 {
  background-image: url("../images/ia4.png");
  background-position: bottom center;
  background-size: 100%;
  padding-bottom: 16rem;
}
.main-2 .content {
  position: relative;
}
.main-2 .swiper-slide h6 {
  font-size: 2rem;
}
.main-2 .swiper-slide .des {
  margin-top: 1rem;
}
.main-2 .swiper-slide .des p {
  position: relative;
  padding-left: 1rem;
  line-height: 1.6;
}
.main-2 .swiper-slide .des p:before {
  content: "•";
  position: absolute;
  left: 0;
  top: 0;
  font-size: 0.8rem;
  color: #666;
}
.main-2 .swiper-btn {
  position: absolute;
  top: -2rem;
  right: 0;
  transform: translateY(-100%);
}
.main-3 .content {
  position: relative;
}
.main-3 .content::before {
  content: "";
  position: absolute;
  bottom: 3.5rem;
  left: 50%;
  width: calc(100% + 4rem);
  height: 5rem;
  background-image: url("../images/hobg.png");
  background-size: 100%;
  background-position: bottom center;
  background-repeat: no-repeat;
  transform: translateX(-50%);
}
.main-3 .swiper {
  padding: 1rem;
}
.main-3 .swiper-slide .img-auto {
  background-color: #fff;
  box-shadow: 0rem 0rem 1.5rem 0rem rgba(0, 0, 0, 0.09);
}
.main-3 .swiper-slide .img-auto::before {
  padding-top: calc(100% / 274 * 355);
}
.main-3 .swiper-slide .img-auto img {
  object-fit: scale-down;
}
.main-3 .swiper-slide p {
  text-align: center;
  line-height: 2;
  color: #666;
  margin-top: 0.5rem;
}
.main-3 .swiper-pagination {
  position: unset;
  width: 11rem;
  height: 0.3rem;
  margin: 3rem auto 0;
  border-radius: 1rem;
  overflow: hidden;
}
.main-3 .swiper-pagination .swiper-pagination-progressbar-fill {
  border-radius: 1rem;
}
.main-4 {
  background-color: #fcfcfc;
  background-image: url("../images/coobg.png");
}
.main-4 .content {
  position: relative;
}
.main-5 .content {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  align-content: flex-start;
  gap: 1.5rem;
  min-height: 50vh;
}
.main-5 .video-link {
  border-bottom: 1px solid #ebebeb;
}
.main-5 .video-link:hover .txt p {
  color: #2556a3;
}
.main-5 .video-link .img-auto::before {
  padding-top: calc(100% / 515 * 290);
}
.main-5 .video-link .img-auto::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 2.4rem;
  height: 2.4rem;
  transform: translate(-50%, -50%);
  background-image: url("../images/play.svg");
  background-size: 100%;
  background-position: center;
  z-index: 1;
}
.main-5 .video-link .txt {
  padding: 1rem 0;
}
.main-5 .video-link .txt p {
  font-size: 0.8rem;
}
.main-6 {
  padding-top: 0;
}
.main-7 .content {
  display: flex;
  align-items: flex-start;
  gap: 3rem;
}
.main-7 .text {
  flex-shrink: 0;
  width: 51.5rem;
}
.main-7 .text .tit {
  padding-bottom: 1rem;
}
.main-7 .text .tit h1 {
  font-size: 1.8rem;
  text-align: center;
}
.main-7 .text .tit .time {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 2rem;
  margin-top: 1rem;
}
.main-7 .text .tit .time p {
  color: #999;
  font-size: 0.8rem;
}
.main-7 .text .con {
  padding: 1rem 0;
  min-height: 50vh;
  border-top: 1px solid #ebebeb;
}
.main-7 .text .other {
  display: grid;
  gap: 1rem;
  padding-top: 1rem;
  border-top: 1px solid #ebebeb;
}
.main-7 .text .other p,
.main-7 .text .other p * {
  font-size: 0.8rem;
}
.main-7 .text .other p a:hover {
  color: #2556a3;
}
.main-7 .rec {
  flex: 1;
  padding: 3.5rem 0;
  background-color: #fafafa;
}
.main-7 .rec .tit {
  text-align: center;
  margin-bottom: 3.5rem;
}
.main-7 .rec .tit span {
  position: relative;
  font-size: 1.8rem;
}
.main-7 .rec .tit span::before,
.main-7 .rec .tit span::after {
  content: "";
  position: absolute;
  top: 50%;
  width: 2.5rem;
  height: 1.5rem;
  transform: translateY(-50%);
}
.main-7 .rec .tit span::before {
  left: -3.5rem;
  background: url("../images/tr.svg") no-repeat center center;
  background-size: contain;
}
.main-7 .rec .tit span::after {
  right: -3.5rem;
  background: url("../images/tl.svg") no-repeat center center;
  background-size: contain;
}
.main-7 .rec .con {
  display: grid;
  gap: 2.5rem;
}
.main-7 .rec .con .link {
  padding: 0 3rem;
  position: relative;
  border-left: 0.1rem solid transparent;
}
.main-7 .rec .con .link::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 0;
  border-top: 0.2rem solid transparent;
  border-bottom: 0.2rem solid transparent;
  border-left: 0.2rem solid transparent;
  transform: translateY(-50%);
  transition: all ease 0.3s;
}
.main-7 .rec .con .link .time {
  margin-bottom: 0.5rem;
}
.main-7 .rec .con .link .time span {
  color: #999;
  font-size: 0.8rem;
}
.main-7 .rec .con .link p {
  font-size: 1.2rem;
  line-height: 1.4;
}
.main-7 .rec .con .link:hover {
  border-color: #2556a3;
}
.main-7 .rec .con .link:hover::before {
  border-left-color: #2556a3;
}
.main-7 .rec .con .link:hover p {
  color: #2556a3;
  text-decoration: underline;
}
@media screen and (max-width: 768px) {
  .main-1 .content {
    flex-direction: column;
    gap: 1rem;
  }
  .main-1 .content > div {
    width: 100%;
  }
  .main-1 .content .txt {
    padding: 0;
  }
  .main-1 .content .txt h2 {
    font-size: 1.4rem;
  }
  .main-1 .content .txt .des,
  .main-1 .content .txt .des * {
    font-size: 0.8rem;
  }
  .main-1 .content1 {
    gap: 0.5rem;
    margin-top: 2rem;
  }
  .main-1 .content1 .item {
    padding: 1rem;
    align-items: center;
    justify-content: space-between;
    border-radius: 1rem;
    gap: 1rem;
  }
  .main-1 .content1 .item .i {
    width: 2rem;
    height: 2rem;
  }
  .main-1 .content1 .item h6 {
    margin: 0;
    font-size: 1rem;
  }
  .main-1 .content1 .item .des {
    margin: 0;
  }
  .main-1 .content1 .item .des,
  .main-1 .content1 .item .des * {
    font-size: 0.8rem;
  }
  .main-2 {
    padding-bottom: 5rem;
  }
  .main-2 .swiper-slide h6 {
    font-size: 1.2rem;
  }
  .main-2 .swiper-slide .des {
    margin-top: 0.5rem;
  }
  .main-2 .swiper-slide .des,
  .main-2 .swiper-slide .des * {
    font-size: 0.8rem;
  }
  .main-2 .swiper-btn {
    top: -1rem;
  }
  .main-3 .content::before {
    background-size: auto 100%;
  }
  .main-5 .content {
    grid-template-columns: repeat(2, 1fr);
    gap: 0.5rem;
  }
  .main-5 .video-link .img-auto::after {
    width: 1.5rem;
    height: 1.5rem;
  }
  .main-5 .video-link .txt {
    padding: 0.5rem 0;
  }
  .main-5 .video-link .txt p {
    line-height: 1.2;
  }
  .main-7 .content {
    flex-direction: column;
  }
  .main-7 .text {
    width: 100%;
  }
  .main-7 .text .tit h1 {
    font-size: 1.4rem;
  }
  .main-7 .rec {
    padding: 2rem 0;
  }
  .main-7 .rec .tit {
    margin-bottom: 2rem;
  }
  .main-7 .rec .tit span {
    font-size: 1.4rem;
  }
  .main-7 .rec .tit span::before,
  .main-7 .rec .tit span::after {
    width: 1.5rem;
  }
  .main-7 .rec .tit span::before {
    left: -2rem;
  }
  .main-7 .rec .tit span::after {
    right: -2rem;
  }
  .main-7 .rec .con {
    gap: 1rem;
  }
  .main-7 .rec .con .link {
    padding: 0;
  }
  .main-7 .rec .con .link .time {
    margin-bottom: 0.2rem;
  }
  .main-7 .rec .con .link p {
    font-size: 1rem;
  }
}