body{overflow-x:hidden;}
.pro_text .pt_item{margin-bottom:10px;line-height:2;}
.online2 .tj{background:#132e89;border-color:#132e89;}
.sideMenu h1{border-bottom:1px solid #dedede;}
.sideMenu a.on h3,.sideMenu a:hover h3{background:#132e89;color:#fff;}
.sideMenu a:hover h3 em,.sideMenu a.on h3 em{background-image:url(../icoadd4.png)}
.sideMenu a:hover h3.on em{background-image:url(../icoadd3.png)}

.video-box{position:relative;max-width:100%;height:67%;text-align:center;margin-top:50px;background:url(../img-bg.jpg) no-repeat center center}
.video-box .play-btn{display:block;width:100px;height:100px;position:absolute;top:calc(50% - 50px);left:calc(50% - 50px);background:url(../play_white.png) no-repeat center center;background-size:100% 100%;cursor:pointer}
.video-box video{visibility:hidden;max-width:100%;max-height:100%}