.aboutbox {
    font-size: 16px;
    line-height: 34px;
    color: #fff;
    overflow: hidden;
    position: relative;
    background: url(../img/zoujinback.png) no-repeat center 0;
    text-align: center;
    background-color: #F7F7F7;
  }
  .wh {
    width: 1200px;
    margin: 0 auto;
    position: relative;
    margin-bottom: 150px;
  }
  .about_w {
    padding: 100px 0 0;
    height: 615px;
  }
  .about_w p:last-child{
    text-align: justify;
    text-indent: 2em;
  }
  .about_w h2 {
    font-size: 20px;
    line-height: 56px;
    font-weight: normal;
    height: 236px;
    position: relative;
  }
  .about_w h2:before {
    content: "";
    position: absolute;
    width: 50px;
    height: 1px;
    top: 202px;
    left: 50%;
    margin-left: -25px;
    background: rgba(255, 255, 255, 0.5);
  }
  .about_w h2 a {
    display: block;
    color: #fff;
  }
  .about_w h2 span {
    display: block;
  }
  .about_l {
    height: 177px;
    background: #fff;
    color: #333;
    text-align: center;
    line-height: 30px;
    box-shadow: 0 0 10px 10px rgba(0, 0, 0, 0.2);
    position: absolute;
    bottom: -70px;
  }
  .about_l li {
    height: 177px;
    width: 300px;
    float: left;
    box-sizing: border-box;
    padding: 29px 0 0;
    position: relative;
  }
  .about_l li:before {
    content: "";
    position: absolute;
    width: 1px;
    height: 115px;
    top: 28px;
    right: 0;
    background: rgba(0, 0, 0, 0.2);
  }
  .about_l li span {
    display: block;
    height: 52px;
    width: 52px;
    margin: 0 auto;
    overflow: hidden;
  }
  .about_l li span img {
    display: block;
    -webkit-transition: 1s;
    -moz-transition: 1s;
    transition: 1s;
  }
  .about_l li p b {
    line-height: 42px;
    font-size: 22px;
    display: block;
  }