.layout {
  width: 1200px;
}

.banner {
  min-width: 1300px;
  padding-top: 100px;
}

.banner a {
  display: block;
  position: relative;
}

.banner a h1 {
  position: absolute;
  top: 164px;
  left: 364px;
  font-size: 82px;
  font-family: PingFang SC-Semibold, PingFang SC;
  font-weight: 600;
  color: #3B70FF;
}

.banner a h2 {
  position: absolute;
  top: 301px;
  left: 364px;
  font-size: 42px;
  font-family: PingFang SC-Medium, PingFang SC;
  font-weight: 500;
  color: #333333;
}

.banner a h3 {
  position: absolute;
  top: 376px;
  left: 364px;
  width: 580px;
  font-size: 28px;
  font-family: PingFang SC-Medium, PingFang SC;
  font-weight: 500;
  color: #666666;
  line-height: 33px;
}

.banner img {
  width: 100%;
  display: block;
}

.main {
  min-width: 1300px;
  padding-top: 150px;
  background: url(../images/xxb-background.png) repeat;
  background-size: contain;
  background-position: 0 -450px;
  /* background-size: 100% 1808px;
  background-position: 0px -341px; */
  /* background: url(../images/xxb-background.png) top center no-repeat,
    url(../images/xxb-background.png) bottom center no-repeat; */
}

.main .layout .part1 {
  margin-bottom: 150px;
}

.main .layout .part1 h1 {
  font-size: 50px;
  font-family: PingFang SC-Semibold, PingFang SC;
  font-weight: 600;
  color: #333333;
  text-align: center;
  margin-bottom: 80px;
}

.main .layout .part1 .box {
  display: flex;
  justify-content: space-around;
}

.main .layout .part1 .box .boxli {
  padding: 34px 34px 0 34px;
  width: 352px;
  height: 383px;
  border-radius: 20px;
  box-shadow: 0px 6px 16px 0 rgba(56, 88, 173, 0.18);
  border: 2px solid #FFFFFF;
  transition: all .3s;
  cursor: pointer;
}

.main .layout .part1 .box .boxli:hover {
  transform: translateY(-14px);
  box-shadow: 3px 3px 24px 0 rgba(0, 65, 240, 0.4);
}

.main .layout .part1 .box .boxli:hover a h2 {
  color: #FFFFFF;
}

.main .layout .part1 .box .boxli:hover a .xian {
  display: block;
}

.main .layout .part1 .box .boxli:hover a .cont {
  display: none;
}

.main .layout .part1 .box .boxli:hover a .cont-on {
  display: block;
}

.main .layout .part1 .box .boxli:hover:nth-child(1) {
  background: url(../images/xxb-part1-1-on.png) no-repeat;
  background-size: cover;
}

.main .layout .part1 .box .boxli:hover:nth-child(2) {
  background: url(../images/xxb-part1-2-on.png) no-repeat;
  background-size: cover;
}

.main .layout .part1 .box .boxli:hover:nth-child(3) {
  background: url(../images/xxb-part1-3-on.png) no-repeat;
  background-size: cover;
}

.main .layout .part1 .box .boxli:nth-child(1) {
  background: url(../images/xxb-part1-1.png) no-repeat;
  background-size: cover;
}

.main .layout .part1 .box .boxli:nth-child(2) {
  background: url(../images/xxb-part1-2.png) no-repeat;
  background-size: cover;
}

.main .layout .part1 .box .boxli:nth-child(3) {
  background: url(../images/xxb-part1-3.png) no-repeat;
  background-size: cover;
}

.main .layout .part1 .box .boxli a {
  display: block;
}

.main .layout .part1 .box .boxli a h2 {
  font-size: 28px;
  font-family: PingFang SC-Medium, PingFang SC;
  font-weight: 500;
  color: #333333;
  margin-bottom: 6px;
}

.main .layout .part1 .box .boxli a .xian {
  display: none;
  width: 69px;
  height: 4px;
  background: #FFFFFF;
  border-radius: 10px 10px 10px 10px;
  margin-bottom: 16px;
}

.main .layout .part1 .box .boxli a .cont {
  display: flex;
  flex-direction: column;
}

.main .layout .part1 .box .boxli a .cont li {
  font-size: 16px;
  font-family: PingFang SC-Medium, PingFang SC;
  font-weight: 500;
  color: #666666;
  margin-bottom: 10px;
}

.main .layout .part1 .box .boxli a .cont-on {
  display: none;
  width: 256px;
  font-size: 16px;
  font-family: PingFang SC-Regular, PingFang SC;
  font-weight: 400;
  color: rgba(255, 255, 255, 0.9);
  line-height: 26px;
}

.main .layout .part2 {
  margin-bottom: 150px;
}

.main .layout .part2 h1 {
  font-size: 50px;
  font-family: PingFang SC-Semibold, PingFang SC;
  font-weight: 600;
  color: #333333;
  text-align: center;
  margin-bottom: 80px;
}

.main .layout .part2 ul {
  display: flex;
  justify-content: space-between;
}

.main .layout .part2 ul li:hover a .title {
  color: #3B70FF;
}

/* .main .layout .part2 ul li:nth-child(1) a img {
  width: 128px;
}

.main .layout .part2 ul li:nth-child(2) a img {
  width: 129px;
}

.main .layout .part2 ul li:nth-child(3) a img {
  width: 128px;
}

.main .layout .part2 ul li:nth-child(4) a img {
  width: 129px;
}

.main .layout .part2 ul li:nth-child(5) a img {
  width: 129px;
} */

.main .layout .part2 ul li a {
  display: flex;
  justify-content: center;
  flex-direction: column;
  align-items: center;
}

.main .layout .part2 ul li a img {
  display: block;
  height: 116px;
}

.main .layout .part2 ul li a .title {
  font-size: 24px;
  font-family: PingFang SC-Medium, PingFang SC;
  font-weight: 500;
  color: rgba(0, 0, 0, 0.85);
  text-align: center;
  margin-bottom: 8px;
  transition: all .3s;
}

.main .layout .part2 ul li a .writer {
  font-size: 18px;
  font-family: PingFang SC-Regular, PingFang SC;
  font-weight: 400;
  color: #666666;
}

.main .layout .part3 {
  padding-left: 38px;
}

.main .layout .part3 h1 {
  font-size: 50px;
  font-family: PingFang SC-Semibold, PingFang SC;
  font-weight: 600;
  color: #333333;
  text-align: center;
  margin-bottom: 8px;
}

.main .layout .part3 h2 {
  font-size: 20px;
  font-family: PingFang SC-Medium, PingFang SC;
  font-weight: 500;
  color: #666666;
  text-align: center;
  margin-bottom: 80px;
}

.main .layout .part3 .xz {
  margin-top: 80px;
}

.main .layout .part3 .xz .title {
  margin-left: 757px;
}

.main .layout .part3 .xz .cont {
  margin-right: 70px;
}

.main .layout .part3 .xz .tab {
  margin-right: 0;
}

.main .layout .part3 .xh {
  margin-top: 80px;
  padding-bottom: 150px;
}

.main .layout .part3 .all .title {
  width: 96px;
  height: 46px;
  background: url(../images/xxb-title-background.png) no-repeat;
  background-size: cover;
  font-size: 24px;
  font-family: PingFang SC-Medium, PingFang SC;
  font-weight: 500;
  color: #FFFFFF;
  line-height: 46px;
  text-align: center;
  margin-bottom: 26px;
}

.main .layout .part3 .all .box {
  display: flex;
  align-items: center;
}

.main .layout .part3 .all .box .tab .on {
  border: 1px solid #3B70FF;
  border-radius: 8px 8px 2px 8px;
  box-shadow: 0 2px 14px 0px rgba(22, 119, 225, 0.2);
}

.main .layout .part3 .all .box .tab .on p {
  color: #333333;
  font-weight: 500;
}

.main .layout .part3 .all .box .tab .on i {
  background: url(../images/xxb-part3-dian-on.png) no-repeat;
  background-size: 6px;
}

.main .layout .part3 .all .box .tab li {
  margin-right: 66px;
  display: flex;
  width: 436px;
  padding: 14px;
  border: 1px solid transparent;
  margin-bottom: 14px;
}

.main .layout .part3 .all .box .tab li:hover {
  cursor: pointer;
}

.main .layout .part3 .all .box .tab li:hover i {}

.main .layout .part3 .all .box .tab li p {
  width: 392px;
  display: block;
  font-size: 14px;
  font-family: PingFang SC-Bold, PingFang SC;
  font-weight: 400;
  color: #666;
  line-height: 20px;
}

.main .layout .part3 .all .box .tab li i {
  display: block;
  width: 7px;
  height: 6px;
  background: url(../images/xxb-part3-dian.png) no-repeat;
  background-size: 6px;
  margin: 5px 7px 0 0;
}

.main .layout .part3 .all .box .cont .active {
  display: flex;
}

.main .layout .part3 .all .box .cont li {
  display: none;
  align-items: center;
  justify-content: center;
  width: 662px;
  height: 318px;
}

.main .layout .part3 .all .box .cont li img {
  width: 622px;
}