*{
  padding: 0;
  margin: 0;
}
ul,li{
  list-style: none;
}
a{text-decoration: none;}
.center {
  width: 1200px;
  margin: 0 auto;
}
.banner {
  width: 100%;
  position: relative;
}

.header {
  /* background: hsla(0, 0%, 100%, .4); */
  -webkit-backdrop-filter: blur(20px);
  backdrop-filter: blur(5px);
  background-clip: padding-box;
  width: calc(100% - 64px);
  padding-left: 32px;
  padding-right: 32px;
  height: 64px;
  position: fixed;
  left: 0;
  top: 0;
  cursor: pointer;
  transition: 0.5s all;
  z-index: 999;
}

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

.bannertxt {
  width: 1200px;
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
}

.bannertxt h4 {
  font-family: PingFangSC-Medium;
  font-size: 44px;
  color: #000000;
  letter-spacing: -0.09px;
  font-weight: 500;
  text-align: left;
  margin-bottom: 20px;
}

.bannertxt p {
  font-family: PingFangSC-Regular;
  font-size: 16px;
  color: #000000;
  letter-spacing: -0.03px;
  font-weight: 400;
  text-align: left;
  margin-left: 4px;
}

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

#corehd {
  width: 100%;
  position: absolute;
  bottom: -40px;
}

.corecen {
  height: auto;
}

.corecenitem {
  padding-top: 120px;
  padding-bottom: 120px;
  width: 100%;
  clear: both;
  height: 475px;
}
.corecenitembox ul{
  width: 100%;
  margin-top: 40px;
}
.corecenitembox ul li{
  width: 182px;
  height: 182px;
  background: #F9FAFF;
  border: 1.5px solid rgba(255,255,255,1);
  box-shadow: 0px 2px 16px 0px rgba(203,217,239,0.5);
  border-radius: 4px;
  float: left;
  margin-right: 18px;
  margin-bottom: 25px;
  text-align: center;
}
.corecenitembox ul li:nth-child(6n){
  margin-right: 0;
}
.corecenitemleft {
  float: left;
  width: 400px;
  height: 450px;
  text-align: left;
}

.corecenitembox ul li img{
  width: 72px;
  margin-top: 45px;
  margin-bottom: 4px;
}
.corecenitembox ul li p{
  font-family: PingFangSC-Regular;
  font-size: 18px;
  color: #1E1E1E;
  letter-spacing: -0.04px;
  font-weight: 550;
}
.corecenitemleft h3 {
  font-family: PingFangSC-Regular;
  font-size: 33px;
  color: #1E1E1E;
  letter-spacing: -0.07px;
  line-height: 46px;
  font-weight: 400;
  margin-top: 120px;
  margin-bottom: 40px;
}

.corecenitemleft p {
  font-family: PingFangSC-Regular;
  font-size: 17px;
  color: #5E636A;
  letter-spacing: -0.04px;
  text-align: justify;
  font-weight: 400;
  line-height: 25px;
}

.corecenitemright {
  width: 700px;
  height: 475px;
  float: right;
  border-radius: 5px;
  overflow: hidden;
  position: relative;
}
.corecenitemright video{
    width: 100%;
    height: 100%;
    border-radius: 5px;
    overflow: hidden;
}

.corecenitemright img {
  width: 100%;
  height: 100%;
  border-radius: 0px 0px 4px 4px;
}

.corecen .up_down .corecenitemboxtop{
  width: 100%;
}

.corecen .up_down .corecenitemboxtop h3{
  font-family: PingFangSC-Regular;
  font-size: 36px;
  color: #1E1E1E;
  letter-spacing: -0.07px;
  line-height: 40px;
  font-weight: 400;
  margin-bottom: 17px;
}
.corecen .up_down .corecenitemboxtop p{
  font-family: PingFangSC-Regular;
  font-size: 18px;
  color: #5E636A;
  letter-spacing: -0.04px;
  text-align: justify;
  font-weight: 400;
  margin-bottom: 26px;
}
.corecen .up_down .corecenitemboxbom{
  width: 100%;
  height: 386px;
  display: flex;
  justify-content: space-between;
}
.corecen .up_down .corecenitemboxbom div{
  width: 580px;
  height: 386px;
  border-radius: 5px;
  overflow: hidden;
}
.corecen .up_down .corecenitemboxbom .mx img{
  width: 100%;
  height: 100%;
}
.corecen .up_down .corecenitemboxbom .mx2 img{
  width: 100%;
  height: 100%;
}
.corecen .cl .corecenitemleft {
  float: left !important;
}

.corecen .cl .corecenitemright {
  float: right !important;
}

.corecen .cr .corecenitemleft {
  float: right !important;
}

.corecen .cr .corecenitemright {

  float: left !important;
}

.seekadvicefrom {
  width: 100%;
  height: 100px;
  padding-top: 60px;
  background: url("https://oss.expoincloud.com/sjy_file/expo3dstore/images/abseekadvicefrom.png") no-repeat;
  background-size: 100% 100%;
  clear: both;
}

.seekadvicefrombtn {
  width: 120px;
  height: 44px;
  background-size: 100% 100%;
  background-image: linear-gradient(230deg, #3ECBFF 0%, #7282FF 50%, #CF6FFF 100%);
  border-radius: 4px;
  color: #fff;
  text-align: center;
  line-height: 44px;
  cursor: pointer;
  margin: 0px auto;
  font-family: PingFangSC-Regular;
}

.black li a {
  color: #000000 !important;
  font-weight: normal !important;
}

.msg h5 {
  color: #000000 !important;
  background: url(https://oss.expoincloud.com/sjy_file/expo3dstore/images/p_b.png) no-repeat !important;
  background-size: 16px 16px !important;
  background-position: left 24px !important;
  font-weight: normal !important;
}

.msg span {
  color: #000000 !important;
  font-weight: normal !important;
}

.msg h6 {
  color: #000000 !important;
  font-weight: normal !important;
}
.msg h6 a{
  color: #000000 !important;
}



.corecenitemright .swiper-container {
  width: 100%;
  height: 430px;
}

.corecenitemright .swiper-slide {
  text-align: center;
  font-size: 18px;
  background: url('https://oss.expoincloud.com/sjy_file/expo3dstore/images/iPhone14Plus.png') no-repeat;
  background-size: 100% 100%;
  display: -webkit-box;
  display: -ms-flexbox;
  display: -webkit-flex;
  display: flex;
  -webkit-box-pack: center;
  -ms-flex-pack: center;
  -webkit-justify-content: center;
  justify-content: center;
  -webkit-box-align: center;
  -ms-flex-align: center;
  -webkit-align-items: center;
  align-items: center;
  transition: 300ms;
  transform: scale(0.9);
}

.corecenitemright .swiper-slide-active,.swiper-slide-duplicate-active {
  transform: scale(1);
}
.corecenitemright h2{
    text-align: center;
    margin-bottom: 18px;
    font-weight: 550;
    font-size: 40px;
    color: #1E1E1E;
    font-family: PingFangSC-Regular;
    font-weight: 400;
}
.corecenitemright .desc{
  text-align: center;
  margin-bottom: 36px;
  font-size: 18px;
  color: #5E636A;
  font-weight: 400;
      font-family: PingFangSC-Regular;
}
.slideback {
  width: 211px;
  height: 375px;
  position: absolute;
  left: 15px;
  border-radius: 0px 0px 19px 20px;
  overflow: hidden;
  top: 40px;
}

.slideback img {
  width: 100%;
  height: 100%;
}