@media only screen and (min-width: 480px) {
  .h5-aboutus {
    display: none;
  }
  .m-nav-topBtn {
    display: none !important;
  }
  .footer {
    background: #d9dde0 !important;
  }
  .footer .f-logo,
  .footer .f-item {
    display: block !important;
  }
  .footer .f-reg {
    left: 64% !important;
    bottom: 50px !important;
  }
}
@media only screen and (max-width: 480px) {
  /* 手机端样式 */
  .page-indicator {
    display: none;
  }
  .headerbox {
    height: 60px;
    z-index: 99999;
  }
  .headerbox .nav-surface {
    height: 60px;
    z-index: 99999;
    background: #ffffff;
  }
  .headerbox .nav-surface .logo-dfl {
    position: absolute;
    left: 10px;
    top: 10px;
    width: 130px;
    height: 33px;
    z-index: 99999;
  }
  .headerbox .nav-surface .m-nav-topBtn {
    display: block;
    position: absolute;
    right: 20px;
    top: 20px;
    width: 30px;
    height: 30px;
    z-index: 99999;
    cursor: pointer;
  }
  .headerbox .nav-surface .m-nav-topBtn .m-nav-up {
    display: block;
  }
  .headerbox .nav-surface .m-nav-topBtn .m-nav-up img {
    width: 90%;
  }
  .headerbox .nav-surface .m-nav-topBtn .m-nav-down {
    display: none;
  }
  .headerbox .nav-surface .m-nav-topBtn .m-nav-down img {
    width: 85%;
  }
  .headerbox .nav {
    top: 60px;
    flex-direction: column;
    justify-content: flex-start;
    z-index: 99999;
    position: fixed;
    width: 100%;
    height: calc(100vh - 60px);
    background: #ffffff;
    left: 0;
    padding: 10px 0;
  }
  .headerbox .nav .nav-item {
    position: relative;
    width: 100%;
    min-height: 64px;
    height: auto;
    line-height: 40px;
    text-align: left;
    box-sizing: border-box;
    padding: 0 20px 0 30px;
    overflow: visible;
  }
  .headerbox .nav .nav-item:nth-child(1) span {
    display: block;
    width: 100%;
    position: absolute;
    top: 15px;
    font: 18px/35px "";
  }
  .headerbox .nav .nav-item::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 5%;
    width: 90%;
    height: 1px;
    background-color: #cdd6df;
  }
  .headerbox .nav .nav-item .majorspan {
    display: block;
    width: 100%;
    position: absolute;
    top: 15px;
    font: 18px/35px "";
  }
  .headerbox .nav .nav-item .m-menu-arrow {
    display: block !important;
    position: absolute;
    right: 25px;
    top: 25px;
    text-align: center;
  }
  .headerbox .nav .nav-item .m-menu-arrow img {
    width: 16px;
    height: auto;
    vertical-align: middle;
  }
  .headerbox .nav .nav-item .m-menu-arrow img:first-child {
    display: block;
  }
  .headerbox .nav .nav-item .m-menu-arrow img:last-child {
    display: none;
  }
  .headerbox .nav .nav-item.active .m-menu-arrow img:first-child {
    display: none;
  }
  .headerbox .nav .nav-item.active .m-menu-arrow img:last-child {
    display: block;
  }
  .headerbox .nav .nav-item .actbg {
    z-index: 9999999;
    display: none;
    background: none !important;
    width: 100%;
    height: auto;
    min-height: auto;
    position: inherit !important;
  }
  .headerbox .nav .nav-item .actbg .ulact {
    flex-direction: row;
    justify-content: flex-start;
    flex-wrap: wrap;
    margin: 45px 0 15px 0;
  }
  .headerbox .nav .nav-item .actbg .ulact li {
    width: 43%;
    margin: 5px 10px;
    background: #d6e8ef;
    border-radius: 16px;
    text-align: center;
  }
  .headerbox .nav .nav-item.active .m-menu-arrow img:first-child {
    display: none;
  }
  .headerbox .nav .nav-item.active .m-menu-arrow img:last-child {
    display: block;
  }
  .headerbox .nav .nav-item.active .actbg {
    display: block;
  }
  .headerbox .nav .active span {
    color: #3c4b5a !important;
  }
  .headerbox .nav .nav-item:last-child {
    border-bottom: none;
  }
  .nav-con-box {
    display: none;
  }
  .footer {
    min-width: 100%;
    height: 1.6rem !important;
    background: #FFF;
  }
  .footer .f-logo,
  .footer .f-item {
    display: none;
  }
  .footer .f-reg {
    left: 50%;
    font: 300 16px/28px "";
    margin-left: -158px;
    bottom: 20px;
  }
  .footer .f-reg span {
    font: 400 16px/32px "";
  }
}