@media screen and (max-width: 1600px) {
  .update-logo{
    width: 1200px;
    margin: 0 auto;
  }
  .update-logo img{
    width: 220px;
  }
  .update-box{
    width: 1200px;
    margin:  30px auto;
  }
  .update01-img{
    padding: 5px;
  }
  .update-list li{
    width: 24%;
    padding: 0.5%;
    float: left;
  }
  .updateDetail-box{
    width: 900px;
    margin: 30px auto;
  }
  .bgImg{
    background: url(../img/newsUpdate/update-bgm.png) no-repeat center;
    background-size: 80%;
    height: 80px;
    line-height: 80px;
  }
}
@media screen and (min-width: 1600px) {
  .update-logo{
    width: 1600px;
    margin: 0 auto;
  }
  .update-logo img{
    width: 280px;
  }
  .update-box{
    width: 1600px;
    margin:  30px auto;
  }
  .update01-img{
    padding: 5px;
  }
  .update-list li{
    width: 24%;
    padding: 0.5%;
    float: left;
  }
  .updateDetail-box{
    width: 1200px;
    margin: 30px auto;
  }
  .bgImg{
    background: url(../img/newsUpdate/update-bgm.png) no-repeat center;
    background-size: 80%;
    height: 80px;
    line-height: 80px;
  }
}
.update-box div,ul>li{
  cursor: pointer;
}
.update01-ul li{
  width: 50%;
  text-align: center;
  float: left;
  cursor: default;
}
.update01-img img:hover{
  opacity: 0.6;
}
.update-list img:hover{
  opacity: 0.6;
}