.banner{width: 100%;margin: 0px auto;overflow: hidden;background: url(../img/product/im/banner.png) top center no-repeat;height: 450px;}
/*多渠道在线客服系统*/
.bi,.m_3{width: 1200px;margin: 60px auto;overflow: hidden;}
.bi .img{width: 50%;}
.bi .des{width: 50%; height: 100%;}
.bi .des h3{margin: 80px 0 45px 0; font-size: 24px;text-align: right;}
.bi .des p{text-align: right;background: url(../img/product/im/img_2.png) center right no-repeat;font-size: 18px;line-height: 40px;padding-right: 40px;}
.bi-content{width: 100%;margin: 0px auto;overflow: hidden;}
.bi-row{width: 1200px;margin: 40px auto 60px;overflow: hidden;}
.m_2{width: 100%;margin: 0px auto;background: #f9f9f9;padding: 60px 0px;overflow: hidden;}
.m_2 h3,.m_3 h3{margin: 80px 0 45px 0; font-size: 24px;}
.m_2 p,.m_3 p{font-size: 16px;line-height: 26px;}
.m_2 .txt,.m_3 .txt{width: 50%;}
.bi .des ul{margin: 26px 0 0 171px;}
.bi .des ul li{line-height: 22px; list-style: outside; color: #00c9ff;}
.bi .des ul span{font-size: 18px; color: #666;}
/*中间广告*/
.center-ad{width: 100%;margin: 0px auto;background: #f9faf9;overflow: hidden;padding: 60px 0px 0px;}
.center-ad div:first-child div{margin: 0 auto; padding-left: 100px; width: 613px; height: 30px; line-height: 30px; text-align: left; font-size: 18px; background: url(../img/product/im/icon_66.png) no-repeat; background-position: 0 50%;}
.center-ad-second{background: url(../img/product/im/2222.png) no-repeat center top;}
.center-ad-second div:first-child div{background: url(../img/product/im/icon_77.png) no-repeat; background-position: 0 50%;}
.center-ad-content{margin:40px auto 0px}
.simg{width: 1200px;margin: 50px auto 0px;text-align: center;}
/*源码无加密 使用更放心*/
.nefsc{width: 1200px;margin: 60px auto;overflow: hidden;}
.nefsc ul{width: 1200px;margin: 30px auto 0px;overflow: hidden;}
.nefsc ul li{width: 500px;float: left;padding: 30px;}
.nefsc ul li:nth-child(2n){float: right;}
.nefsc ul li div{width: 400px;float: right;}
.nefsc ul li div h3{font-size: 18px;margin-bottom: 10px;}
.nefsc ul li div p{font-size: 14px;}