@media screen and (min-width: 1200px) {
    .yanfa_container_750 {
      display: none;
    }

    /* banner */
    .banner {
      height: 500px;
      min-width: 1200px;
      background-image: url("/img/tuandui_banner.png");
      background-size: cover;
      background-position: center;
      background-repeat: no-repeat;
      display: flex;
      flex-direction: column;
      justify-content: end;
      align-items: center;
      margin-bottom: 80px;
    }

    .banner_title {
      width: 1200px;
      margin: 0 auto;
      font-size: 60px;
      color: #FFFFFF;
      margin-bottom: 140px;
    }

    .xiangmu_content {
      display: flex;
      justify-content: space-between;
      flex-wrap: wrap;
      margin-top: 40px;
      margin-bottom: 80px;
    }

    .card {
      display: block;
      box-sizing: border-box;
      padding: 40px;
      width: 590px;
      display: flex;
      justify-content: space-between;
      background: #F8F8F8;
      margin-top: 20px;
    }

    .left {
      width: 225px;
    }

    .card_title {
      font-weight: 500;
      font-size: 20px;
      color: #333333;
      overflow: hidden;
      display: -webkit-box;
      -webkit-line-clamp: 2;
      /* 限制显示两行 */
      -webkit-box-orient: vertical;
      /* 设置垂直排列方式 */
      text-overflow: ellipsis;
      /* 超出部分显示省略号 */
      line-height: 1.5;
      /* 设置行高 */
    }

    .time {
      font-weight: 400;
      font-size: 14px;
      color: #777777;
      margin: 24px 0;
    }

    .card_content {
      font-weight: 400;
      font-size: 16px;
      overflow: hidden;
      color: #777777;
      display: -webkit-box;
      height: auto;
      -webkit-line-clamp: 2;
      /* 限制显示两行 */
      -webkit-box-orient: vertical;
      /* 设置垂直排列方式 */
      text-overflow: ellipsis;
      /* 超出部分显示省略号 */
      line-height: 1.5;
      /* 设置行高 */
    }

    .right {
      width: 255px;
      margin-left: 30px;
      overflow: hidden;
    }

    .card:hover {
      background: #3C37C0;
    }

    .card:hover .card_title,
    .card:hover .time,
    .card:hover .card_content,
    .card:hover .text_content,
    .card:hover .text_title {
      color: #FFFFFF !important;

    }

    .text_line {
      margin: 20px 0;
      width: 210px;
      height: 2px;
      background: #FFFFFF;
    }
  }

  @media screen and (max-width: 1199px) {
    .yanfa_container {
      display: none;
    }

    .banner_750 {
      background-image: url("//img/yanfa_banner_750.png");
      height: 306px;
      background-repeat: no-repeat;
      background-position: center;
      background-size: cover;
      padding-top: 124px;
      padding-left: 16px;
    }

    .banner_title_750 {
      font-family: Source Han Sans CN, Source Han Sans CN;
      font-weight: 500;
      font-size: 27px;
      color: #FFFFFF;
    }

    .content_750 {
      padding: 30px 20px;
      background-color: #fff;
    }

    .left_750 {
      /* width: 184px; */
      flex: 1;
      margin-right: 16px;
    }

    .public_title {
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 12px;
      margin-top: 30px;
    }

    .public_content {
      display: block;
      box-sizing: border-box;
      padding: 20px;
      background-color: #f8f8f8;
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 12px;
    }
    .public_content:active{
      outline: none;
      background: #3C37C0;
    }
    .public_content:active .public_content_title,
    .public_content:active .public_content_zhiwei,
    .public_content:active .public_content_intro {
      color: #FFFFFF !important;
    }

    .public_content_img {
      width: 100px;
      height: 100px;
      border-radius: 50%;
      overflow: hidden;
      margin-right: 20px;
    }
    .public_content_title {
      font-weight: 500;
      font-size: 16px;
      color: #333333;
      overflow: hidden;
      display: -webkit-box;
      -webkit-line-clamp: 2;
      -webkit-box-orient: vertical;
      /* 设置垂直排列方式 */
      text-overflow: ellipsis;
      /* 超出部分显示省略号 */
      line-height: 1.5;
      /* 设置行高 */
      letter-spacing: 1px;
    }

    .public_content_zhiwei {
      font-family: Source Han Sans CN, Source Han Sans CN;
      font-weight: 400;
      font-size: 12px;
      color: #777777;
      margin-top: 5px;
      margin-bottom: 10px;
      letter-spacing: 1px;
    }

    .public_content_intro {
      font-family: Source Han Sans CN, Source Han Sans CN;
      font-weight: 400;
      font-size: 14px;
      color: #777777;
      overflow: hidden;
      display: -webkit-box;
      -webkit-line-clamp: 2;
      /* 限制显示两行 */
      -webkit-box-orient: vertical;
      /* 设置垂直排列方式 */
      text-overflow: ellipsis;
      /* 超出部分显示省略号 */
      line-height: 1.5;
      /* 设置行高 */
      letter-spacing: 1px;
    }

    .jishu_public_content {
      padding: 20px;
      background-color: #F8F8F8;
      display: block;
      box-sizing: border-box;
    }
    .jishu_public_content:focus{
      outline: none;
      background: #3C37C0;
    }
    .jishu_public_content:focus .jishu_public_content_title,
    .jishu_public_content:focus .jishu_public_content_intro{
      color: #FFFFFF;
    }

    .jishu_public_content_line {
      width: 210px;
      height: 2px;
      background: #FFFFFF;
      margin: 12px 0;
    }
    .jishu_public_content_intro{
      display: -webkit-box;
      overflow: hidden;
      -webkit-line-clamp: 2;
      -webkit-box-orient: vertical;
      text-overflow: ellipsis;
      font-size: 14px;
      color: #777777;
    }
    .jishu_public_content_title{
      font-size: 16px;
    }
  }
  @media screen and (min-width: 750px) {
    .banner_750 {
      background-image: url("//img/yanfa_banner_750.png");
      height: 306px;
    }
  }