.main{
  margin-top: 50px;
  box-sizing: border-box;
}
.main .box{
 max-width: 1200px;
  margin: 0 auto;
}
.main .menu{
  float: left;
  width: 300px;
  height: 588px;
}
.main .menu_list li>a{
  display: block;
  width: 100%;
  height: 70px;
  line-height: 70px;
  font-size: 16px;
  font-weight: bold;
  color: #888;
  border-bottom: 1px solid #eee;
}
.main .menu_list .active{
  color: #333;
  border-bottom: 2px solid #c00a27;
}
.main .menu_list .active .arrow{
  float: right;
  width:5px;
  height: 10px;
  margin: 31px 14px 0 0;
  background-image: url(../../img/service/arrow.png);
  background-size: 5px 10px;
}
.main .menu_list li>a .text{
  vertical-align: middle;
}
.main .menu_list .icon{
  font-size: 25px;
  color: #888;
  font-weight: normal;
  margin-right: 20px;
  vertical-align: middle;
}
i,b{
  font-style: normal;
}

/* installation */
.main .installation{
  float: right;
  max-width: 840px;
}
.main .installation .img>img{
  width: 100%;
  height: 100%;
}
.main .installation .ask_content{
  width: 100%;
}
.main .installation .reduce{
  font-size: 16px;
  color: #333;
  font-weight: bold;
  padding: 30px 0 21px;
  box-sizing: border-box;
  border-bottom: 1px solid #eee;
  cursor: pointer;
}
.main .installation .reduce_icon{
  font-size: 16px;
  font-weight: normal;
  color: #c6092d;
  margin:0 10px 19px;
}
.main .installation .content_box{
  padding: 0;
}
.main .installation table{
  margin: 29px 0 10px 0;
  width: 100%;
  text-align: center;
  border-collapse: collapse;
}
.main .installation table tr th{
  height: 60px;
  background-color: #f2f2f2;
  border: 1px solid #e6e6e6;
  font-size: 14px;
  color: #333;
  font-weight: bold;
}
.main .installation table tr td{
  font-size: 12px;
  color: #333;
  height: 60px;
  border: 1px solid #eee;
}
.main .installation table .content{
  width: 190px;
}
.main .installation table .exemption{
  width: 130px;
}
.main .installation table .money{
  width: 90px;
}
.main .installation table .details{
  width: 209px;
}
.main .installation table tr:nth-child(2){
  height: 40px;
}
.main .installation .last_tr>td{
  height: 129px;
}
.main .installation table .city{
  display: block;
  font-weight: normal;
  font-size: 12px;
  line-height: 20px;
}
.main .installation .content_text{
  padding: 0 17px;
  text-align: left;
  box-sizing: border-box;
}
.main .installation .details_text{
  padding: 0 28px 0 23px;
  text-align: left;
  box-sizing: border-box;
}
.main .installation .sign{
  color: #c6092d;
}
.main .installation .plus{
  font-size: 16px;
  color: #333;
  font-weight: bold;
  padding: 32px 0 20px 10px;
  border-bottom: 1px solid #eee;
  box-sizing: border-box;
  cursor: pointer;
}
.main .installation .plus_icon{
  font-size: 16px;
  font-weight: normal;
  margin-right: 19px;
}
.main .installation .tips{
  color: #c6092d;
}
.main .installation .script{
  padding: 29px 149px 0 0;
  box-sizing: border-box;
  font-size: 14px;
  line-height: 25px;
  color: #333;
}
@media screen and (max-width: 1200px){
  .main{
    padding: 0 20px;
  }
  .main .menu{
    width: 25%;
  }
  .main .installation{
    width: 65%;
    background-size: 100% 588px;
  }
  .main .installation .img>img{
    width: 100%;
    height: 100%;
  }
  .main .installation .first,
  .main .installation .last{
    text-align:center;
    padding: 0;
  }
}

@media screen and (max-width: 768px){
  .main{
    margin: 0;
    padding: 0;
  }
  .main .installation{
    width: 100%;
    background-size: 100% 100%;
    background: #fff;
    padding: 0 4%;
    box-sizing: border-box;
  }
  .main .installation .installation_title{
    font-size: 20px;
    line-height: 24px;
    margin:39px 0 25px;
    font-weight: bold;
    text-align: center;
  }
  .main .installation .img>img{
    width: 100%;
    height: 100%;
    margin-bottom: 25px;
  }
  .main .installation .reduce{
    font-size: 14px;
    color: #333;
    padding: 34px 0 20px;
    box-sizing: border-box;
    border-bottom: 1px solid #eee;
  }
  .main .installation .reduce_icon{
    color: #c6092d;
    font-size: 14px;
    margin:0 10px 19px;
  }
  .main .installation .content-box{
    padding: 0 4%;
    box-sizing: border-box;
  }
  
  .main .installation .plus{
    font-size: 14px;
    color: #333;
    font-weight: bold;
    padding: 16px 0 20px 3%;
    border-bottom: 1px solid #eee;
    box-sizing: border-box;
  }
  .main .installation .plus_icon{
    font-weight: normal;
    font-size: 14px;
    margin-right: 19px;
  }
  .main .installation .charge>img{
    width: 100%;
    height: 100%;
  }
  .main .installation .enlarge{
    display: block;
    width: 32%;
    height: 40px;
    line-height: 40px;
    border: 1px solid #333;
    font-size: 14px;
    color: #333;
    text-align: center;
    border-radius: 20px;
    background: #fff;
    margin:30px auto 0;
  }
  .main .installation .enlarge_icon{
    font-size: 13px;
    margin-right: 10px;
  }
}