/*pc端*/
/*@media screen and (min-width: 800px) {*/
  /* .banner {
    width: 960px;
    height: 350px;
    margin: 0 auto;
  } */

  .content {
    width: 960px;
    margin: 0 auto;
  }
  .content .block1 {
    width: 960px;
    margin: 0 auto;
  }
  .content .block1 h1 {
    font-size: 36px;
    color: #000000;
  }
  .content .block1 h1 span {
    border-bottom: 8px solid #f00;
    padding: 5px 0;
  }
  .content .block1 p {
    margin: 20px auto;
    color: #666666;
    font-size: 20px;
  }
  .content .block2 {
    height: 180px;
    margin: 100px auto;
  }
  .content .block2 ul li {
    width: 20%;
    float: left;
  }
  .content .block2 ul li img {
    margin-right: 15px;
    width: 180px;
    height: 180px;
  }
  .block3,
  .block4 {
    display: flex;
    height: 228px;
    background: #fbfbfb;
    margin-bottom: 100px;
  }
  .block3 .install_pic1,
  .block4 .install_pic2 {
    width: 400px;
    height: 228px;
  }
  .block3 .block3_item,
  .block4 .block3_item {
    flex: 1;
    padding: 25px;
  }
  .block3 .block3_item p.title,
  .block4 .block3_item p.title {
    color: #333333;
    font-size: 18px;
    line-height: 1.5;
  }
  .block3 .block3_item p,
  .block4 .block3_item p {
    font-size: 16px;
    color: #666666;
    line-height: 1.4;
  }
  .block3 .block3_item p .more,
  .block4 .block3_item p .more {
    width: 198px;
    height: 48px;
    border: 1px solid #f00;
    display: inline-block;
    font-size: 36px;
    color: #f00;
    text-align: center;
    line-height: 50px;
    margin-top: 25px;
  }
  .block3 .block3_item p .more {
    float: right;
  }
  .block3 .block3_item p .more:hover,
  .block4 .block3_item p .more:hover {
    background: #f00;
    color: #fff;
  }
/*}*/