#tou{width:100%;height:920px;background-image:url(../img/bg.png);background-size:cover;}.head_center{width:1200px;display:block;height:100%;margin:auto;}.head_center > div{float:left;margin-top:110px;}.head_a{width:590px;margin-top:190px;}.head_a_a{width:100%;font-size:52px;font-family:Microsoft YaHei;font-weight:bold;color:#FFFFFF;line-height:88px;}.head_a_b{display:flex;width:100%;margin-top:90px;}.head_a_b > div{width:110px;text-align:center;justify-content:space-around;font-size:23px;font-family:Microsoft YaHei;font-weight:400;color:#FFFFFF;line-height:38px;margin-right:50px;}.head_a_c{width:270px;height:65px;background:#FFFFFF;border-radius:33px;font-size:24px;font-weight:bold;color:#046AFD;line-height:65px;margin-top:80px;display:block;cursor:pointer;text-align:center;transition:all 0.3s;}.head_a_c:hover{color:#00347e;}.head_b{width:534px;}.head_b > img{width:416px;margin-left:101px;}.msg{width:1200px;margin:auto;}.msg_a{font-size:31px;font-family:Microsoft YaHei;font-weight:bold;color:#333333;width:100%;text-align:center;line-height:30px;margin-top:230px;}.msg_b{width:1200px;margin:auto;text-align:center;}.msg_b img{width:58px;height:58px;margin-top:70px;}.msg_b tr:nth-child(2) td,.msg_b tr:nth-child(4) td{font-size:14px;font-family:Microsoft YaHei;font-weight:400;color:#333333;line-height:30px;margin-top:10px;}.chat{width:1200px;margin:auto;margin-top:150px;}.chat_a{width:350px;float:left;margin-right:160px;}.chat_b{width:690px;float:left;}.chat_a_a{font-size:30px;font-family:Microsoft YaHei;font-weight:bold;color:#333333;line-height:88px;margin-top:30px;}.chat_a_b{font-size:15px;font-family:Microsoft YaHei;font-weight:400;color:#333333;line-height:30px;}.chat_a_c{width:240px;height:90px;margin-top:30px;background-size:cover;background-image:url(../img/chat3.png);text-align:center;font-size:18px;font-family:Microsoft YaHei;font-weight:400;color:#FFFFFF;line-height:70px;cursor:pointer;}.service{width:100%;height:750px;background-size:cover;position:relative;background-image:url(../img/service.png);}.service_a{width:127px;height:42px;background:#3778FD;font-size:16px;font-family:Microsoft YaHei;font-weight:400;color:#FFFFFF;line-height:5px;left:0;right:0;bottom:44px;margin:auto;z-index:10;position:absolute;border-radius:21px;}.fri{width:1200px;margin:auto;}.fri_a{width:100%;text-align:center;font-size:31px;font-family:Microsoft YaHei;font-weight:bold;color:#333333;line-height:30px;margin-top:125px;}.fri_b{font-size:14px;font-family:Microsoft YaHei;text-align:center;font-weight:400;color:#333333;margin-top:30px;}.fri_c{margin-top:70px;}.fri_c > div{width:300px;float:left;}.fri_c img{width:290px;height:430px;}.free{width:100%;height:160px;background-image:url(../img/free.png);margin-top:150px;}.free > div{width:1000px;margin:auto;text-align:center;font-size:25px;font-family:Microsoft YaHei;font-weight:400;color:#FFFFFF;line-height:50px;padding-top:32px;}.free button{width:150px;height:44px;font-size:16px;font-family:Microsoft YaHei;font-weight:400;color:#FFFFFF;border-radius:50px;line-height:30px;margin-left:190px;background:none;border:1px solid white;}