.product{
    width:100%;
    background: #fff;
}
.product_gaishu{
    /* padding:40px 0; */
}
.contain{
    width:1200px;
    margin:0 auto;
    overflow: hidden;
}
.contain>h1{
    width:100%;
    text-align: center;
    font-size: 24px;
    color:#000000;
    margin-top:96px;
}
.contain .product_jiahzi{
    margin-top: 51PX;
}
.contain>img{
    margin-top:68px;
}
.product_text{
    margin:68px 12px 0 75px;
    float: left;
    width: 613px;
}
.product_text h3{
    font-size:24px;
    color:#000;
}
.product_text p{ 
    font-size: 14px;
    color:#666;
    line-height: 21px;
    margin-top:20px;
}
.product_adv{
    float: left;
    margin: 30px 15px 0 15px;
    color: #35b1ea;
}
.product_adv img{
    height:60px;
    vertical-align: top;
}
.product_adv p{
    width: 100%;
    text-align: center;
    font-size: 14px;
    margin-top:0;
}
.zdzc{
    width:400px;
	height:260px;
    float: right;
}
.product_iot{
    display: flex;
    flex-direction: row;
    justify-content: space-between;
    margin-top:39px;
}
.product_iot:frist-child{
	margin-top:0;
}
.product_youshi{
    /* padding:40px 0; */
    /* background: #f4f8fb; */
}
.product_youshi_con{
    margin:80px 75px 0 75px;
}
.product_part{
    overflow: hidden;
    margin-bottom:39px;
}
.product_part:last-child{
    margin-bottom:0;
}
.product_save {
    display: flex;
    flex-direction: row;
    justify-content: space-between;
}
.product_save1 {
    display: flex;
    flex-direction: row;
    justify-content: space-between;
}
.product_save img{
    width:460px;
	height:330px;
    /* float: left; */
}
.product_save1 img{
    width:421px;
	height:421px;
    /* float: left; */
}
.product_div{
    width:423px;
    /* float: left; */
    margin-top:10px;
}
.product_div h3{
    color:#000;
    font-weight: bold;
    font-size: 16px;
}
.product_div p{
    color:#666;
    margin-top: 14px;
    font-size: 14px;
    line-height: 21px;
}
.product_efficiency{
    /* padding:40px 0; */
}
.product_efficiency_main{
    margin:30px 75px 0 75px;
    overflow: hidden;
}
.product_efficiency_div{
    height:135px;
    float: left;
    margin-top:35px;
    overflow: hidden;
    margin-left: 21px;
}
.product_margin_left{
    margin-left: 80px;
}
.product_efficiency_div img{
    height:80px;
    float: left;
    margin-top:11px;
    
}
.product_efficiency_div div{
    width:364px;
    float: left;
    font-size: 14px;
    margin-top:15px;
    margin-left: 25px;
}
.product_efficiency_div div h1{
    color:#000;
    font-size: 14px;
    margin-bottom:10px;
}
.product_efficiency_div div h4{
    color:#000;
    font-size: 14px;
    margin-bottom:10px;
}
.product_efficiency_div div span{
    color:#666;
    line-height: 21px;
}
.product_text_iot{
    margin:127px 75px 0 75px;
}
.product_text_iot h3{
    font-size: 18px;
}
.product_gaishu_gray{
    background:#F8F8F8;
    padding-bottom:75px;
}
.product_margin_bottom{
    padding-bottom:94px;
}
.product_display{
	margin:86px 75px 0 75px;
	width:514px;
}
.product_display2{
	margin:56px 75px 0 75px;
}