@media screen and (max-width:750px) {
  .wrap-head {
    display: none;
  }

  .main_top {
    display: none;
  }

  .main-top_ {
    width: 100%;
    background-color: #000;
  }

  .m_t_right_ {
    display: block;
    width: 100%;
    height: auto;
    background: url('https://t.zoomedia.com.cn/public/gw/images/dtcphonebannerback.png');
    background-size: 100% 100%;
    margin: 0 auto;
    padding: 6.06rem 3rem 7.19rem;
  }

  .m_t_title {
    font-size: 4.5rem;
    margin: 0 auto;
    text-align: center;
    height: 1.625rem;
  }

  .m_t_main {
    width: 100%;
    height: auto;
    font-size: 1.88rem;
    font-family: SourceHanSansSC;
    font-weight: 400;
    color: #FFFFFF;
    line-height: 3.75rem;
    margin-top: 3.94rem !important;
  }

  .m_t_img {
    width: 39.81rem;
    height: 5.19rem;
    margin-top: 4.44rem;
  }

  .method {
    display: none;
  }

  .method_ {
    display: block;
    width: 100%;
    height: auto;
    padding: 4.81rem 3rem 5.44rem;
    background-color: #F7F7F7;
  }

  .m_text1 {
    font-size: 2.63rem;
    line-height: 2.3125rem;
    text-align: center;
    margin-top: 0.8125rem !important;
  }

  .m_text2 {
    /*width: 23%;*/
    width: 100%;
    font-size: 4.13rem;
    line-height: 1.4375rem;
    text-align: center;
    /*margin-top: 1.56rem;*/
    margin-top: 2.56rem;
  }

  .m_banner {
    width: 100%;
    height: auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-top: 2.0625rem;
  }
  .swiper{
    width:100%;
    height:100%;
    padding:0 !important;
    display: flex;
    flex-direction: column;
    align-items: center;
  }
  .swiper-slide{
    width:100%;
    height:auto;
    display: flex;
    flex-direction: column;
    align-items: center;
  }
  .swiper-button-prev{
    left:3% !important;
  }
  .luncontent {
    width: 100%;
    height: auto;
    margin:0 auto;
    display: flex;
    flex-direction: column;
    align-items: center;
  }

  .m_rightimg_ {
    width: 90%;
    height: auto;
    padding: 0.625rem;
    box-sizing: border-box;
    padding: 2.69rem 4.81rem 1.75rem 5.81rem;
    /*background-color: #fff;*/
    margin: 5.56rem 0 4.75rem 0;
  }

  .marketing_ {
    width: 90%;
    display: block;
    margin: 0 auto;
    /* height: 13.3125rem; */
    /* margin: 0; */
  }

  .twopart {
    width: 100%;
    display: flex;
    justify-content:space-around;
    margin-top: 1.75rem;
  }

  .dtcleft,
  .dtcright {
    /* width: 1.6875rem;
    height: 1.3125rem; */
    margin-top: 1.5rem;
  }
.tonext{
  width:4.5rem;
  height:3.63rem;
}
  .m_middletext {
    display: flex;
    flex-direction: column;
    align-items: center;
  }

  .d_t_text1 {
    font-size: 3rem;
    text-align: center;
  }

  .d_t_text2_ {
    font-size: 1.88rem;
    text-align: center;
    margin-top: 1.31rem;
  }

  .d_t_line {
    /* margin: 0 0 0 8.3rem; */
    text-align: center;
  }

  .dtctext1,
  .dtctext2 {
    width: 2.5rem;
    height: 0.19rem;
    margin-left: -3%;
  }

  .dtctext3 {
    font-size: 1.88rem;
    margin-top:3%;
  }

  .d_t_text_ {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin: 0;
  }

  .d_t_text3,
  .d_t_text4 {
    text-align: center;
    margin: 0;
    /* height: 1.375rem; */
    ;
  }

  .d_t_text3 {
    font-size: 2.25rem!important;
    line-height: 2rem!important;
    margin-top: 3.75rem!important;
    margin-bottom: 1.81rem!important;
  }

  .d_t_text4 {
    font-size: 1.88rem!important;
    line-height: 3rem!important;
  }

  .course {
    width: 100%;
    height: auto;
    padding: 4.63rem 3rem 0;
    /* box-sizing: border-box; */
  }

  .c_main {
    width: 100%;
  }

  .c_text1 {
    font-size: 2.63rem;
    text-align: center;
    line-height: 2.5rem;
  }

  .c_text2 {
    font-size: 4.13rem;
    text-align: center;
    margin-top: 2.6rem;
    line-height: 1.0625rem;
  }

  .c_text3 {
    font-size: 3rem;
    margin: 5.75rem 0 0 0;
  }

  .c_t_text {
    font-size: 1.88rem;
    margin: 1.06rem 0 0 0;
  }

  .c_t_bar {
    width: 3.75rem;
    height: 0.19rem;
    margin: 1.13rem 0 0 0;
  }

  .c_text5 {
    width: 100%;
    height: auto;
    font-size: 2.25rem;
    font-family: SourceHanSansCN;
    font-weight: 400;
    color: #1E1E1E;
    line-height: 3.75rem;
    margin: 4.56rem 0 7.31rem 0;
  }

  .gropimg {
    display: none;
  }

  .gropimg_ {
    width: 100%;
    height: auto;
    display: flex;
    flex-direction: column !important;
    align-items: center !important;
    padding: 0 2.3125rem 7.5rem;
    box-sizing: border-box;
    margin-top: 0.625rem;
  }

  .once {
    width: 90%;
    height: 100%;
    margin-top: 2.0625rem;
  }

  .once_img {
    width: 100%;
    /* height: 31.63rem; */
  }
    .once_img img{
      width: 100%;
    }
  .bottom_text {
    width: 100%;
    height: 50%;
    padding: 4.94rem 2.75rem 7.13rem 2.81rem;
  }

  .once_title_ {
    font-size: 3rem;
    font-weight: bold;
  }

  .once_text {
    width: 100%;
    line-height: 3.85rem;
    ;
    font-size: 1.93rem;
    margin-top: 23px;
    margin-left: 0;
  }

  /* .wrap-footer{
        display: none;
    } */
  .dtczhi {
    width: 100%;
    padding: 4.4rem 6.25rem 7.5rem;
    box-sizing: border-box;
  }

  .zhi_content {
    display: none
  }

  .zhi_content_ {
    display: block;
  }

  .c_text1 {
    font-size: 2.63rem;
  }

  .c_text2 {
    font-size: 4.13rem;
    margin-top: 2.56rem;
  }

  .al_once {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-bottom: 5.63rem;
  }

  .al_once_img {
    width: 100%;
    height: 27.5rem;
  }

  .al_righttext {
    width: 100%;
    display: flex;
    flex-direction: column;
    padding: 3.13rem 3rem 3.13rem 2.56rem;
    box-sizing: border-box;
    margin-left: 0%;
  }

  .zhi_tab {
    margin-top: 8.63rem;
  }

  .tab_one, .tab_two {
    font-size: 3.38rem;
    font-family: SourceHanSansCN;
    font-weight: bold;
    color: #08969B;
    margin-right: 10%;
  }

  .tab_one span {
    display: block;
    width: 34%;
    /* height:0.19rem;
      background-color:#FF9A00; */
    border-bottom: 0.27rem solid #FF9A00;
    margin: 1.25rem 0 2rem 0;
    opacity: 1;
  }

  .tab_two span {
    display: block;
    width: 41%;
    /* height:0.19rem;
      background-color:#FF9A00; */
    border-bottom: 0.27rem solid #FF9A00;
    margin: 1.25rem 0 2rem 0;
    opacity: 0;
  }

  .zhi_title_ {
    width: 100%;
    height: 7.94rem;
    font-size: 3rem;
    font-weight: 400;
    color: #1C1C1C;
    line-height: 4rem;
    display: -webkit-box;
    /* 弹性盒子元素垂直排列 */
    -webkit-box-orient: vertical;
    /* 控制要显示的行数 */
    -webkit-line-clamp: 2;
    overflow: hidden;
  }

  .tabler_one {
    font-size: 1.5rem;
    padding: 0.44rem 1.19rem 0.63rem 1rem;
    box-sizing: border-box;
    margin-right: 2%;
  }

  .text_left_ {
    width: 100%;
    height: auto;
    display: flex;
    justify-content: space-between;
    margin-top: 2.38rem;
    padding: 1rem 0.5rem;
    box-sizing: border-box;
  }

  .zhi_text2_ {
    width: 84%;
    height: 8.88rem;
    font-size: 1.88rem;
    color: #8C8C8C;
    line-height: 3rem;
    display: -webkit-box;
    /* 弹性盒子元素垂直排列 */
    -webkit-box-orient: vertical;
    /* 控制要显示的行数 */
    -webkit-line-clamp: 3;
    overflow: hidden;
    text-align: left;
  }

  .shuline {
    height: 8.25rem;
    margin: 0 2.25rem 0 1.81rem;
  }

  .ridata {
    font-size: 5.6rem;
  }

  .nianyear {
    font-size: 2.06rem;
    margin-top: 1.69rem;
  }

  .rightdata {
    width: 24%;
  }

  .lookmore {
    display: none;
  }

  .lookmore_ {
    display: block;
    width: 100%;
    padding: 2.4rem 20rem;
    background-color: #08969B;
    font-size: 3rem;
    font-weight: 400;
    color: #FFFFFF;
    margin: 0 auto;
  }
  .mod-tab{
    padding: 0;
    margin: 4rem 0;
  }
}