.xuanqiang .large-4 {
      float: left;
      padding-right: 5px;
      width: 33.33%;
      padding-left: 5px;
    }
    .xuanqiang a {
      width: 100%;
      padding: 15px 0;
      border: none;
      color: #ffffff;
      background: #000;
      font-size: 16px;
      display: block;
      margin: 10px auto;
    }
    .avv a, .xuanqiang a:hover {
      color: #fff;
      background: #0076bc;
    }
    .kongzhi .large-4 {
      float: left;
    }
    .kongzhi .large-4 .zi-box {
      margin: 10px;
      background: #fff;
      max-width: 100%;
      height: 300px;
      position: relative;
    }
    .zi-row a {
      background: #000;
      font-size: 16px;
    }
    .zi-box img {
      width: 100%;
      z-index: 1;
    }
    .zi-txt {
      position: absolute;
      z-index: 2;
      left: 0;
      bottom: 0;
      background: rgba(0, 0, 0, .7);
      color: #fff;
      width: 100%;
      padding: 10px;
    }
    .zi-txt h3 {
      font-size: 15px;
      color: #fff;
      font-family: "SourceHanSansCN-Regular";
      line-height: 1.2;
      letter-spacing: 0.2px;
    }
    .time {
      font-size: 13px;
      color: #ccc;
      margin-bottom: 0;
    }
    #c103 {
      height: 340px;
      background:url(../image/newsx.jpg) center center no-repeat;
      background-size: auto 100%
    }
    @media screen and (max-width:1600px) {
      #c103 {
        height: 303px;
      }
    }
    @media screen and (max-width:1440px) {
      #c103 {
        height: 300px;
      }
    }
    @media screen and (max-width:1360px) {
      #c103 {
        height: 283px;
      }
    }
    @media screen and (max-width:1280px) {
      #c103 {
        height: 267px;
      }
    }
    @media screen and (max-width:1024px) {
      #c103 {
        height: 213px;
      }
    }
    @media screen and (max-width:640px) {
      #c103 {
        height: 200px;
      }
    }
    .pb40 {
      padding: 20px 0;
      @media (max-width: 767px) {
        .section-header {
          height: 20px;
        }
        .pb40 {
          padding: 20px 0;
        }
      }
}