@media screen and (min-width : 320Px) and (max-width : 750Px) {
  @font-face {
    font-family: "SpaceOutExtended";
    src: url('../font/SpaceOutExtended.ttf') format('truetype');
  }

  @font-face {
    font-family: "SourceHanSansCN-Normal";
    src: url('../font/SourceHanSansCN-Normal.otf');
  }

  @font-face {
    font-family: "SourceHanSansCN";
    src: url('../font/SourceHanSansCN-Light.otf');
  }

  @font-face {
    font-family: "SourceHanSansCN-ExtraLight";
    src: url('../font/SourceHanSansCN-ExtraLight.otf');
  }

  body {
    font-family: "SourceHanSansCN", Arial, sans-serif;
    min-width: 100%;
    max-width: 100%;
    overflow: auto;
  }

  .section {
    width: 100% !important;
  }

  .pages {
    height: 18.75vw !important;
    background-color: rgba(0, 0, 0, 0.8) !important;
    width: 100% !important;
    /* position: absolute !important; */
    position: fixed;
    top: 0 !important;
    left: 0 !important;
    z-index: 101 !important;
  }

  .nav {
    width: 100% !important;
    line-height: 18.75vw;
    height: 18.75vw;
    padding: 0 6.71875vw;
    overflow: inherit;
  }

  .logoImg {
    width: 29.0625vw;
    height: 6.5625vw;
    /* margin-left: 3.90625vw; */
    vertical-align: middle;
  }

  .nav-menu {
    float: right;
    display: block;
    margin-top: 7.1875vw;
    /* margin-right: 3.90625vw ; */
  }

  .nav-menu img {
    max-width: 10.9375vw;
    /* height: 3.125vw !important; */
    display: block !important;
  }

  .nav_box {
    display: none;
    background-color: rgba(0, 0, 0, 0.8) !important;
    line-height: 6.5625vw !important;
    transition: all 0.6s !important;
    width: 100vw;
    position: absolute;
    right: 0;
    /* padding-bottom: 5vw; */
    padding: 0 8.75vw;

  }

  .nav_box a {
    display: block !important;
    border-bottom: 0.15625vw solid hsla(0, 0%, 100%, .15) !important;
    font-size: 4.375vw;
    font-weight: 300;
    margin-left: 0;
    line-height: 15.625vw;
    box-sizing: border-box;
    text-align: center;
  }

  .show {
    display: block !important;
  }

  .none {
    display: none !important;
  }

  .nav_box a:hover {
    color: #ffffff !important;

  }

  .pc_banner {
    display: none;
  }

  .m_banner {
    display: block;
    width: 100%;
  }

  .part2_box_hover {
    display: none !important;
  }

  .footer .footer-top {
    padding: 10vw 0 5.78125vw 0 !important;
    margin: 0 3.75vw 0 3.75vw !important;
    border-bottom: 0.15625vw solid #999 !important;
  }

  .footer .phone {
    float: left !important;
    margin-bottom: 0 !important;
    margin-top: 4.53125vw !important;
    font-size: 5vw !important;
    color: #999 !important;
  }

  .footer .phone a {
    display: block;
    color: #999;
    width: 50.46875vw;
    height: 10.78125vw;
    background: url("../images/footer-phone-m.png") no-repeat center center;
    background-size: cover;
  }

  .footer .phone span:not(:last-child) {
    margin-bottom: 1.5625vw !important;
  }

  .footer .left-link {
    display: none !important;
  }

  .footer .right-link .code img {
    width: 15.9375vw !important;
    margin: 0 auto !important;
  }

  .footer .right-link .code p {
    font-size: 2.8125vw !important;
    margin-top: 2.1875vw !important;
    margin-bottom: 0 !important;
    text-align: center !important;
  }

  .footer .right-link ul {
    display: none !important;
  }

  .footer .footer-bottom {
    padding: 9.0625vw 3.75vw 15.625vw 3.75vw !important;
  }

  .footer .friend {
    display: none !important;
  }

  .footer .company {
    float: none !important;
    text-align: left !important;
    font-size: 2.8125vw !important;
  }

  .footer .company .icp {
    margin-bottom: 0 !important;
  }

  .footer .company .icp span {
    display: block !important;
    margin-bottom: 1.5625vw !important;
  }

  .footer .company .support {
    font-size: 2.8125vw !important;
  }

  .m_hidden {
    display: none;
  }

  .nav2 a::after {
    content: "";
    position: absolute;
    bottom: -0.3125vw;
    left: 0;
    width: 100%;
    height: 0.3125vw;
  }

  .nav2 a:last-child {
    margin: 0;
  }

  .nav2 a:hover {
    color: #5C5C5C;
  }

  .nav2 a.active {
    background-color: #fff;
    color: #CE0021;
    border-bottom: 0.3125vw solid #CE0021;
    margin-bottom: -0.3125vw;
  }

  .nav2 a.active::after {
    background: #CE0021;
  }

  .nav2 a {
    font-size: 3.4375vw;
    line-height: 12.1875vw;
    text-align: center;
    text-decoration: none;
  }

  .nav2 {
    width: 100%;
    border-bottom: 0.3125vw solid #D2D2D2;
  }

  .slidebar {
    display: none !important;
  }

  .video_t > a{
    display: none;
  }
  .video_appbox .video_t{
    left: 0;
    width: 100vw;
  }
}