.swiper_pc {
  display: block;
}

.swiper_mobile {
  display: none;
}

.mobile_show {
  display: none !important;
}

.pc_show {
  display: block !important;
}


@media (max-width: 750px) {
  .fixRight {
    display: none;
  }

  html {
    font-size: 13.3333vw;
    width: 100vw;
  }

  #siteTop {
    display: none;
  }

  .index_nav {
    position: fixed;
    left: 0px;
    top: 0px;
    width: 100%;
    z-index: 9;
  }

  .w12 {
    width: 100vw;
  }
  .havDrop {
    position: relative;
  }

  .havDrop>a {
    position: static;
    padding-right: 0px;
  }

  .havDrop>a::after {
    content: '<';
    left: 0.3rem;
    top: 0px;
    border: none;
    width: auto;
    height: auto;
    right: auto;
    line-height: 0.88rem;
  }
  #quick_agenda, #quick_speakers, #registBtn, #nominate, #award_setting {
    margin-top: 0;
    top: -0.88rem;
  }

  .share {
    display: none;
    width: 100vw;
  }

  /* 鑱旂郴鎴戜滑 */
  .contact {
    padding: 0.8rem 0.3rem 0.6rem;
    height: auto;
  }

  .contact .w12 {
    padding-top: 0;
  }

  .t8 {
    width: 2.26rem;
    height: 1.25rem;
  }

  .content_left {
    font-size: 16px;
    font-family: PingFang SC, PingFang SC-Regular;
    font-weight: 400;
    text-align: left;
    color: #cedae6;
    line-height: 25px;
    padding-left: 0px;
  }

  .contactWrap, .contactWrap .content_left {
    margin-top: .4rem;
    display: block;
  }

  .content_left>ul:first-child {
    margin-top: 0.52rem;
    margin-right: 0;
  }

  .content_left>ul li:first-child {
    margin-bottom: 0.16rem;
    font-size: 0.3rem;
    font-family: PingFang SC, PingFang SC-Regular;
    font-weight: 400;
    text-align: left;
    color: #FFFFFF;
    line-height: 0.42rem;
    opacity: 1;
  }

  .content_left ul li {
    font-size: 0.28rem;
    font-family: PingFang SC, PingFang SC-Regular;
    font-weight: 400;
    text-align: left;
    color: #FFFFFF;
    opacity: 0.8;
    line-height: 0.46rem;
  }

  .content_left>ul:last-child {
    margin-top: 0.4rem;
    margin-bottom: 0.4rem;
  }

  .content_right {
    align-items: center;
    justify-content: space-between;
    margin-top: 0.4rem;
  }

  .content_right>div {
    margin-left: 0px;
  }

  .content_right img {
    width: 2.6rem;
    height: 2.6rem;
  }

  .content_right>div p {
    font-size: 0.26rem;
    font-family: PingFang SC, PingFang SC-Regular;
    font-weight: 400;
    text-align: center;
    color: #cedae6;
    line-height: 0.37rem;
    margin-top: 0.2rem;
  }

  .contact2 .partTitle {
    height: 0.84rem;
    margin-bottom: 0.45rem;
    margin-top: 0rem;
    padding-left: 0.92rem;
    padding-top: 0;
  }

  .contact2 .contactHead::before {
    top: 0.05rem;
    width: 0.72rem;
    height: 0.72rem;
  }

  .contact2 .contactHead h3 {
    font-size: 0.36rem;
    font-family: PingFang SC, PingFang SC-Bold;
    font-weight: 700;
    text-align: left;
    color: #ffffff;
    line-height: 0.5rem;
  }

  .cc_left dt {
    margin-bottom: 0.16rem;
    font-size: 0.3rem;
    font-family: PingFang SC, PingFang SC-Regular;
    font-weight: 400;
    text-align: left;
    color: #FFFFFF;
    line-height: 0.42rem;
    opacity: 1;
  }

  .content_left {
    font-size: 0.28rem;
    font-family: PingFang SC, PingFang SC-Regular;
    font-weight: 400;
    text-align: left;
    color: #FFFFFF;
    opacity: 1;
    line-height: 0.46rem;
  }

  .content_left dl:last-child {
    margin-top: 0.4rem;
  }

  .contact .w12 {
    width: 100%;
  }

  .content_left dd {
    opacity: 0.8;
  }

  .content_right>div p {}

  /* footer */
  .footer {
    display: none;
  }

  .pc_show {
    display: none !important;
  }

  .mobile_show {
    display: block !important;
  }

  .ercode {
    width: 2.6rem;
    height: 2.6rem;
  }
}