@media (min-width: 750px) and (max-width: 1400px) {
  html {
    font-size: 75px !important;
  }
}

@media screen and (max-width: 750px) {
  #app {
    min-width: 100%;
  }

  .mobile {
    display: block;
    margin: 0 auto;
  }

  .pc {
    display: none;
  }

  .content {
    display: block;
    text-align: center;
  }

  .content .pic_img {
    width: 5.8rem
  }

  .content .tBox {
    margin: 0.4rem auto;
    text-align: center;
  }

  .content .tBox .title {
    font-size: 0.4rem;
  }

  .content .tBox .txt_m {
    display: block;
    font-size: 0.28rem;
  }
}


@media (max-width: 1000px) {
  .headBox .headCont {
    width: 100%;
  }

  .headBox .logo {
    left: 5%;
  }

  .headBox .btnBox {
    right: 5%;
  }
}