@media screen and (max-width: 1300px) {
  .div_join .join .right .content .right-detail span {
    display: none;
  }
  .icon-founding {
    width: calc(50% - 550px);
    right: 1%;
  }
}
@media screen and (max-width: 1100px) {
  .div_join .join .left .text {
    font-size: 30px;
    letter-spacing: 20px;
    text-indent: 20px;
  }
  .div_join .join .right .content .online-job {
    right: 10px;
    width: 140px;
    height: 40px;
    font-size: 20px;
  }
  .icon-founding {
    display: none;
  }
}
@media screen and (max-width: 850px) {
  .contact-us {
    margin-top: 0 !important;
  }
  .contact-us .map {
    width: 100%;
    background: none;
  }
  .contact-us .map .map_Canada,
  .contact-us .map .map_China {
    display: none;
  }
  .contact-us .map ul {
    position: inherit;
    height: auto;
    width: 100%;
    padding-top: 0;
  }
  .contact-us .map ul li {
    width: 40%;
    height: auto;
    min-height: 250px;
  }
  .contact-us .map ul li .school p {
    font-family: 'NotoSansCJKsc-Medium';
  }
  .contact-us .map ul li .address {
    margin-bottom: 10px;
  }
  .contact-us .div_join {
    display: none;
  }
  .contact-us .div_join_mobile {
    display: flex;
    flex-direction: column;
    position: relative;
    width: 85%;
    margin: 0 auto;
  }
  .contact-us .div_join_mobile .person {
    position: absolute;
    height: 144px;
    right: 0;
  }
  .contact-us .div_join_mobile .box {
    box-shadow: 0 0 14px 3px rgba(102, 102, 102, 0.1);
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-top: 132px;
    padding: 50px 25px;
    margin-bottom: 30px;
  }
  .contact-us .div_join_mobile .box .title {
    font-size: 30px;
    color: #231815;
    margin-bottom: 15px;
    font-family: 'NotoSansCJKsc-Black';
    letter-spacing: 21px;
    text-indent: 21px;
  }
  .contact-us .div_join_mobile .box .sub {
    color: #231815;
    font-size: 20px;
    margin-bottom: 15px;
    font-family: 'NotoSansCJKsc-Thin';
  }
  .contact-us .div_join_mobile .box .icon {
    width: 75px;
    margin-bottom: 15px;
  }
  .contact-us .div_join_mobile .box hr {
    height: 1px;
    background-color: #d5d5d5;
    border: none;
    width: 100%;
  }
  .contact-us .div_join_mobile .box .title-l2 {
    color: #373838;
    font-size: 20px;
    font-weight: bold;
    margin-top: 30px;
  }
  .contact-us .div_join_mobile .box .title-l3 {
    color: #727171;
    font-size: 18px;
    margin-top: 10px;
    font-family: 'NotoSansCJKsc-Thin';
  }
  .contact-us .div_join_mobile .box .btn {
    width: 170px;
    height: 50px;
    text-align: center;
    line-height: 50px;
    color: #fff;
    font-size: 23px;
    border-radius: 30px;
    background-color: #006CB2;
    font-weight: 400;
    font-weight: bold;
    letter-spacing: 3px;
    margin-top: 30px;
  }
  .contact-us .item {
    display: none !important;
  }
  .contact-popup {
    height: 100%;
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    position: fixed;
    display: none;
    left: 0;
    top: 0;
  }
  .contact-popup .mask {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.8);
    z-index: 1;
  }
  .contact-popup .card {
    width: 220px;
    height: 340px;
    background: #006CB2;
    position: relative;
    z-index: 2;
    box-shadow: 0 0 14px 3px rgba(102, 102, 102, 0.1);
    border-radius: 15px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
  }
  .contact-popup .card img {
    margin-bottom: 15px;
    width: 125px;
    height: auto;
  }
  .contact-popup .card p {
    color: white;
  }
  .contact-popup .card .school {
    margin-bottom: 15px;
  }
  .contact-popup .card .school p {
    font-size: 16px;
    line-height: 22px;
    text-align: center;
  }
  .contact-popup .card .address {
    margin-bottom: 25px;
  }
  .contact-popup .card .address p {
    font-size: 14px;
    padding: 0 20px;
    text-align: center;
    line-height: 15px;
    font-family: 'NotoSansCJKsc-Thin';
    letter-spacing: 0.5px;
  }
  .contact-popup .card .phone {
    color: white;
    font-size: 14px;
    font-family: 'NotoSansCJKsc-Thin';
    letter-spacing: 0.5px;
  }
}