.nav_title{text-align:center; padding:50px 0; font-size:16px;}
.nav_title a{margin:0 20px; display:inline-block; border:1px solid #ccc; height:40px; line-height:40px; padding:0 20px;border-radius:5px;-moz-border-radius:5px;-webkit-border-radius:5px; overflow:hidden}
.nav_title .a{color:#fff; background:#5fb0b7;border:1px solid #5fb0b7;}
.content_left{width:90%; margin:10px auto}
.content_left .title{height:50px; background:#5fb0b7; color:#fff; padding:0 20px; line-height:50px; font-size:16px; border-bottom: 1px solid #5fb0b7}
.content_left .title span{background:url(ioc.png) no-repeat 0 center; padding-left:22px;}
.left_nav{border:1px solid #e6e6e6; border-top:0; overflow:hidden; padding:0 0 20px 0}
.left_nav ul{margin-top:-1px;}
.left_nav li{padding:0 20px; font-size: 16px;}
.left_nav li .t{height:50px; line-height:50px;position:relative;border-bottom: 1px solid #aeaeae;cursor:pointer}
.left_nav li .t i{position:absolute; right:0px; top:0; width:18px; height:50px;background:url(ioc_l.png) no-repeat 0 center; cursor:pointer}
.left_nav li .t a,.left_nav li .t.hover:hover a{color:#000}
.left_nav li .t:hover i{background:url(ioc_la.png) no-repeat 0 center;}
.left_nav li .t:hover a{color:#5fb0b7}
.left_nav li .t.hover i{background:url(ioc_b.png) no-repeat 0 center; }
.left_nav li .txt{padding:0 0 5px 18px; display:none}
.left_nav li .txt p{line-height:45px; height:45px; overflow:hidden;border-bottom: 1px dashed #aeaeae}
.left_nav .more{background:#5fb0b7; display:block; width:120px; height:30px; margin:0 auto; text-align:center; line-height:30px; color:#fff; cursor:pointer;border-radius:50px;-moz-border-radius:50px;-webkit-border-radius:50px; overflow:hidden}
.left_nav .more:hover{background:#5fb0b7}
.left_nav .more span{padding-right:18px; background:url(ioc_ba.png) no-repeat right center;}
.left_nav .more.hover span{background:url(ioc_t.png) no-repeat right center;}
.txt a:hover{color: #5fb0b7}