@media screen and (min-width: 1024px) and (max-width: 1199px) {
  body.about .about-main .mt-center {
    padding: 0 20px;
    width: 100vw;
  }
  body.about .about-main .mt-center .about-header {
    align-items: center;
    padding-top: 100px;
  }
  body.about .about-main .mt-center .about-header .about-header-left .about-header-left-title {
    margin-top: 0;
  }
  body.about .about-main .mt-center .about-header .about-header-left .about-header-left-subtitle {
    font-size: 18px;
  }
  body.about .about-main .mt-center .about-header .about-header-right {
    width: 50%;
    height: 280px;
    background-size: contain;
    background-repeat: no-repeat;
  }
  body.about .about-main .mt-center .about-two {
    margin-top: 100px;
  }
  body.about .about-main .mt-center .about-two .about-two-items .about-two-item {
    width: 32%;
    height: 224px;
    padding: 40px 20px;
  }
  body.about .about-main .mt-center .about-two .about-two-items .about-two-item .two-item-title {
    font-size: 24px;
  }
  body.about .about-main .mt-center .about-three .about-three-title {
    font-size: 48px;
  }
  body.about .about-main .mt-center .about-three .about-three-body {
    width: 100%;
  }
  body.about .about-main .mt-center .about-three .about-three-body .about-three-body-left {
    width: auto;
    height: auto;
  }
  body.about .about-main .mt-center .about-contactUs .about-contactUs-left {
    width: 50%;
  }
  body.about .about-main .mt-center .about-contactUs .about-contactUs-left .about-contactUs-left-title {
    font-size: 40px;
  }
  body.about .about-main .mt-center .about-contactUs .about-contactUs-left .about-contactUs-left-number {
    flex-wrap: wrap;
    margin-top: 100px;
  }
  body.about .about-main .mt-center .about-contactUs .about-contactUs-left .about-contactUs-left-number .contactUs-left-number-item {
    margin-bottom: 8px;
  }
  body.about .about-main .mt-center .about-contactUs .about-contactUs-left .about-contactUs-left-number .contactUs-left-number-item .contactUs-left-number-item-text span {
    display: inline-block;
    white-space: nowrap;
  }
  body.about .about-main .mt-center .about-contactUs .about-contactUs-right {
    width: 50%;
  }
}
@media screen and (max-width: 1023px) {
  body.about .about-main .mt-center {
    padding: 0 20px;
    width: 100vw;
  }
  body.about .about-main .mt-center .about-header {
    flex-wrap: wrap;
    padding-top: 0;
  }
  body.about .about-main .mt-center .about-header .about-header-left .about-header-left-title {
    font-size: 18px;
    line-height: 26px;
    margin-top: 60px;
  }
  body.about .about-main .mt-center .about-header .about-header-left .about-header-left-subtitle {
    font-size: 14px;
    margin-top: 20px;
    margin-bottom: 40px;
  }
  body.about .about-main .mt-center .about-header .about-header-right {
    width: 100%;
    height: 59.43vw;
    background-size: contain;
    background-repeat: no-repeat;
  }
  body.about .about-main .mt-center .about-two {
    margin-top: 40px;
  }
  body.about .about-main .mt-center .about-two .about-two-items {
    flex-wrap: wrap;
  }
  body.about .about-main .mt-center .about-two .about-two-items .about-two-item {
    width: 100%;
    height: auto;
    min-height: 214px;
    margin-bottom: 12px;
  }
  body.about .about-main .mt-center .about-three {
    margin-top: 40px;
  }
  body.about .about-main .mt-center .about-three .about-three-title {
    font-size: 18px;
  }
  body.about .about-main .mt-center .about-three .about-three-body {
    display: flex;
    flex-wrap: wrap;
    width: 100%;
    height: auto;
    padding: 0;
    overflow: hidden;
    margin-top: 20px;
  }
  body.about .about-main .mt-center .about-three .about-three-body .about-three-body-left {
    width: 100%;
    height: auto;
    padding: 20px;
    font-size: 14px;
    line-height: 20px;
  }
  body.about .about-main .mt-center .about-three .about-three-body .about-three-body-right {
    position: static;
    width: calc(100vw - 40px);
    height: 320px;
    background-size: cover;
  }
  body.about .about-main .mt-center .about-contactUs {
    flex-wrap: wrap;
    margin-top: 40px;
    margin-bottom: 60px;
  }
  body.about .about-main .mt-center .about-contactUs .about-contactUs-left {
    width: 100%;
  }
  body.about .about-main .mt-center .about-contactUs .about-contactUs-left .about-contactUs-left-title {
    font-size: 18px;
  }
  body.about .about-main .mt-center .about-contactUs .about-contactUs-left .about-contactUs-left-number {
    flex-wrap: wrap;
    margin-top: 20px;
  }
  body.about .about-main .mt-center .about-contactUs .about-contactUs-left .about-contactUs-left-number .contactUs-left-number-item {
    margin-bottom: 8px;
  }
  body.about .about-main .mt-center .about-contactUs .about-contactUs-left .about-contactUs-left-items {
    margin-top: 20px;
  }
  body.about .about-main .mt-center .about-contactUs .about-contactUs-left .about-contactUs-left-items .about-contactUs-left-item {
    margin-right: 10px;
  }
  body.about .about-main .mt-center .about-contactUs .about-contactUs-right {
    width: 100%;
    height: auto;
    padding: 0;
    margin-top: 40px;
  }
  body.about .about-main .mt-center .about-contactUs .about-contactUs-right .about-contactUs-right-pic {
    width: 100%;
    height: 45.24vw;
    background-size: contain;
    background-repeat: no-repeat;
  }
}
@media screen and (max-width: 481px) {
  body.about .about-main .mt-center .about-three .about-three-body .about-three-body-right {
    width: calc(100vw - 40px);
    height: calc(183.68vw - 40px);
  }
}