.nc1 {
  background-image: url(https://oss.novastar-led.cn/picture/kongzhixitong/MX40Pro/1.jpg);
  background-repeat: no-repeat;
  background-position: center center;
  background-size: 100% auto;
  height: calc(1139/var(--PCS));
  background-color: #000;
}

.nc2 {
  background-image: url(https://oss.novastar-led.cn/picture/kongzhixitong/MX40Pro/cn2.jpg);
  background-position: center;
  height: 1056px;
  position: relative;
}

.nc3 {
  background-image: url(https://oss.novastar-led.cn/picture/kongzhixitong/%E5%88%87%E7%89%873.jpg);
  background-position: center;
  height: 804px;
}

.nc4 {
  background-image: url(https://oss.novastar-led.cn/picture/kongzhixitong/MX40Pro/nbg4.jpg);
  background-position: center;
  height: 796px;
  position: relative;
}

.nc5 {
  /*background-image: url(https://oss.novastar-led.cn/picture/kongzhixitong/MX40Pro/nc5.jpg);*/
  /*background-position: center;*/
  /*height: 989px;*/
  position: relative;
}

.nc6 {
  position: relative;
  background-image: url(https://oss.novastar-led.cn/picture/kongzhixitong/MX40Pro/n6.jpg);
  background-position: center;
  height: 805px;
}

.nc7 {
  background-image: url(https://oss.novastar-led.cn/picture/kongzhixitong/MX40Pro/n7.jpg);
  background-position: center;
  position: relative;

  height: 866px;
}

.nc8 {
  background-image: url(https://oss.novastar-led.cn/picture/kongzhixitong/MX40Pro/n8.jpg);
  background-position: center;
  position: relative;

  height: 1084px;
}

.nc9 {
  background-image: url(https://oss.novastar-led.cn/picture/kongzhixitong/MX40Pro/9.jpg);
  background-position: center;
  height: 1122px;
}

.nc10 {
  background-image: url(https://oss.novastar-led.cn/picture/kongzhixitong/MX40Pro/10.jpg);
  background-position: center;
  height: 1056px;
}

.nc11 {
  background-image: url(https://oss.novastar-led.cn/picture/kongzhixitong/MX40Pro/11.jpg);
  background-position: center;
  height: 1122px;
}

.nc12 {
  background-image: url(https://oss.novastar-led.cn/picture/kongzhixitong/%E5%88%87%E7%89%8712.jpg);
  background-position: center;
  height: 782px;
}

.nc12_half {
  background-image: url(https://oss.novastar-led.cn/picture/kongzhixitong/MX40Pro/nc12_half.jpg);
  background-position: center;
  height: 989px;
  position: relative;
}

.nc13 {
  background-image: url(https://oss.novastar-led.cn/picture/kongzhixitong/MX40Pro/nc13.jpg);
  background-position: center;
  height: 899px;
  position: relative;
}

.nc14 {
  background-image: url(https://oss.novastar-led.cn/picture/kongzhixitong/MX40Pro/n14.jpg);
  background-position: center;
  height: 746px;
  position: relative;

}

.c8-img {
  margin: auto;
}

.c8-btn {
  background-color: #464646;
  width: 14px;
  height: 14px;
  border-radius: 6px;
  cursor: pointer;
  margin-right: 5px;
}

.c8-btn:hover {
  background-color: white;
}

.c8-ibtn {
  width: 30px;
  cursor: pointer;
}

.nc15 {
  background-image: url(https://oss.novastar-led.cn/picture/kongzhixitong/MX40Pro/n15.jpg);
  background-position: center;
  height: 969px;
  position: relative;
}

.nc16 {
  background-image: url(https://oss.novastar-led.cn/picture/kongzhixitong/MX40Pro/16.jpg);
  background-position: center;
  height: 1580px;
}

.nc17 {
  background-image: url(https://oss.novastar-led.cn/picture/kongzhixitong/MX40Pro/17.jpg);
  background-position: center;
  height: 558px;
}

/*.nc1{*/
/*    background-image: url(https://oss.novastar-led.cn/picture/kongzhixitong/MX40Pro/1.jpg);*/
/*    background-position: center;*/
/*}*/

.kniu_body_pcs {
  display: none;
}

.kniu_swiper_group {
  position: absolute;
  top: 30%;
  left: 0;
  width: 100%;
  text-align: center;
}

@media (min-width: calc(1024px - 60px)) {
  .kniu_body_pcs {
    display: block;
  }

  .swiper-button-prev {
    left: 8%;
  }

  .swiper-button-next {
    right: 8%;
  }
}

@media (min-width: calc(1920px - 60px)) {
  .swiper-button-prev {
    left: 22%;
  }

  .swiper-button-next {
    right: 22%;
  }
}