@media screen and (max-width: 1200px){
  .commonWidth {
    width: 100%;
    padding: 0px 15px;
  }
  .header {
    padding: 0px 15px;
  }
  .banner .swiperNext, .banner .swiperPrev {
    display: none;
  }
  .expert_list {
    width: calc((100% / 2) - 20px);
  }
  .expert_img>img {
    margin: 0 auto;
  }
}

@media screen and (max-width: 950px){
  .commonTitle>h3 {
    font-size: 20px;
  }
  .introduction_cont {
    margin-top: 20px;
  }
  .introduction_cont>p {
    font-size: 16px;
  }
  .banner {
    height: 290px;
  }
  .swiperBanner {
    height: 234px;
  }
  .mySwiper {
    display: none;
  }
  .banner .swiperNext, .banner .swiperPrev {
    display: block;
    width: 38px;
    height: 38px;
    background-size: cover;
    top: auto;
    bottom: 0px;
  }
  .banner .swiperNext {
    left: 50px;
    right: 0px;
  }
  .banner .swiperPrev {
    left: 0px;
  }
  .expert_bg,
  .seminar {
    padding: 20px 0px;
  }
  .expert_item {
    margin-top: 20px;
    gap: 20px 0px;
  }
  .expert_list {
    width: calc(100% - 51%);
  }
  .expert_detail>h3 {
    font-size: 18px;
  }
  .expert_detail>p {
    font-size: 14px;
  }
  .video_swiper {
    height: 100%;
  }
  .video_img {
    height: 220px;
  }
  .footer {
    height: 80px;
  }
}