body{background-color:#fff}h3,h4{margin:0}.header{position:relative;width:100%;color:#fff;overflow:hidden}.header img{display:block}.header img.download_bg{width:100%}.header img.download_big{position:absolute;bottom:-3PX;width:150%}.header .download_box{position:absolute;width:28%;left:7.8%;top:30%;margin-bottom:200px}.header .download_box h3{font-size:30px;font-weight:bold;margin-bottom:50px}.header .download_box a{color:#fff;display:block;width:58%;height:50px;border-radius:5px;text-align:center;line-height:50px;font-size:16px;margin-bottom:30px}.header .download_box .ewm{width:35%;float:right;border-radius:5px}.product{width:100%;margin-top:100px;text-align:center}.product>h3{width:100px;margin:0 auto;font-size:20px;font-weight:bold;border-bottom:1px solid #ccc;color:#000;line-height:2em}.product>p{line-height:2em}.product .func{width:90%;margin:100px auto 140px}.product .func .item{width:25%;height:;float:left}.product .func .item a{display:block;width:100%;height:100%;color:#333}.product .func .item a i{display:block;width:60px;height:60px;background-color:#5a92fb;border-radius:40%;margin:5px auto;line-height:60px;font-size:30px;color:#fff}.product .func .item a h4{font-size:12px;font-weight:bold;line-height:1.5em;margin:0}