.banner{overflow: hidden;position: relative;height: 530px;text-align:center}
.banner ul{
    display: flex;
    position: absolute;
    left: 0;
}
.banner div{
    display: flex;
    width: 120px;
    position: absolute;
    bottom:50px;
    left: 46%;
    justify-content: space-between;
}
.banner div span{
    width: 20px;
    height: 20px;
    background: rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    display: block;
}
.banner div .xian{
background: #FFFFFF;
}
.DingZhi h3{
    font: bold 36px Microsoft YaHei;
    color: #333;
    margin: 99px 0 19px;
}
.DingZhi p{
    font: 20px Microsoft YaHei;
    color: #999;
}
.DingZhi .top,
.DingZhi .buttom{
    text-align: left;
}
.DingZhi .top{
    display: flex;
    width: 900px;
    justify-content: space-between;
}
.DingZhi .top p{
    font: 24px Microsoft YaHei;
    color: #333;
    margin: 17px 0 19px;
}
.DingZhi .top input{
    width: 430px;
    height: 70px;
    border: none;
    background-color: #F7F7F7;
    font: 24px/100px Microsoft YaHei;
    text-indent: 19px;
}
.DingZhi .buttom p{
    font: 24px Microsoft YaHei;
    color: #333;
    margin: 29px 0 21px;
}
.DingZhi .buttom textarea{
    width: 900px;
    height: 200px;
    border: none;
    background-color: #F7F7F7;
    font: 24px/100px Microsoft YaHei;
    text-indent: 11px;
}
.DingZhi button{
    width: 240px;
height: 70px;
background: #007AFF;
border-radius: 10px;
font: 30px Microsoft YaHei;
color: #fff;
margin: 48px 0 100px;
}
.ReMen{
background: #FAFAFA;
}
.ReMen h2{
    font: bold 36px Microsoft YaHei;
    color: #333333;
    margin: 100px 0 22px;
}
.ReMen h3{
    font: 20xp Microsoft YaHei;
    color: #999999;
}
.ReMen ul{
    display: flex;
    flex-wrap: wrap;
    width: 1200px;
    justify-content: space-between;
    margin: 96px 0 55px;
}
.ReMen ul li{
    width: 170px;
}
.ReMen ul li p{
    font: 22px Microsoft YaHei;
    color: #000000;
    margin-top: 46px;
    margin-bottom: 68px;
}
.GaoDuan h2{
    font: bold 36px Microsoft YaHei;
    color: #333333;
    margin: 100px 0 69px;
}
.GaoDuan ul{
    display: flex;
    flex-wrap: wrap;
    width: 1200px;
    justify-content: space-between;
    margin-bottom: 76px;
}
.GaoDuan ul li{
    width: 278px;
    height: 350px;
    background: url(../images/demand/tou.png) no-repeat;
    margin-bottom: 24px;
}
.GaoDuan ul .border{
    background: url(../images/demand/border.png) no-repeat;
}
.GaoDuan ul li h3{
    font: bold 20px Microsoft YaHei;
    color: #333333;
    margin: 59px 0 22px;
}
.GaoDuan ul li p{
    font: 16px Microsoft YaHei;
    color: #666666;
    width: 238px;
}