/*课程介绍 轮播*/
.friend{height:182px;margin:50px auto;overflow:hidden;width:1176px;}
.mr_frbox{ margin-top:40px;}
.mr_frBtnL{cursor:pointer;display:inline;float:left;height:46px;margin:75px 0px 0 0;width:28px;}
.mr_frUl{float:left;height:182px;width:1140px; margin:0 10px;}
.mr_frBtnR{float:left;margin-top:75px;cursor:pointer;width:28px;height:46px;}
.mr_frUl ul li{display:block;float:left;height:230px;width:220px;overflow:hidden;position:relative; padding-right:9px;
text-align:center;}

.mr_frUl ul li a img{display:block;width:220px; height:182px;}
.mr_frUl ul li a span{ color:#666; font-size:14px; display:block; margin-top:10px;}



/*.mr_frUl ul li .bg{width:268px; height:300px; background:rgba(0,179,225,0.7); position:absolute; top:0;left:0; text-align:center; opacity:0; transition:0.3s;}
.mr_frUl ul li:hover .bg{opacity:1;}
.mr_frUl ul li .bg h3{ font-size:20px; color:#fff; line-height:1em; font-weight:100; margin-top:55px;}
.mr_frUl ul li .bg p{ font-size:12px; color:#fff; padding:0 40px; line-height:1.6em;}
.mr_frUl ul li .bg b{ display:block; width:50px; height:1px; background:#8fdaf0; margin:10px auto 20px;}
.mr_frUl ul li .bg div{width:92px; height:32px; text-align:center; line-height:32px; font-weight:900; font-size:16px; color:#fff; margin:70px auto 0; position:relative;}
.mr_frUl ul li .bg div i{ display:block; position:absolute; background:#fff; transition:0.5s; opacity:0.3}
.mr_frUl ul li .bg div .t{width:100%; height:2px;top:0;left:-100%}
.mr_frUl ul li .bg div .b{width:100%; height:2px; bottom:0; left:100%}
.mr_frUl ul li .bg div .l{width:2px; height:100%;top:-100%;left:0;}
.mr_frUl ul li .bg div .r{width:2px; height:100%;top:100%;right:0}
.mr_frUl ul li:hover .bg div i{ opacity:1}
.mr_frUl ul li:hover .bg div .t{left:0}
.mr_frUl ul li:hover .bg div .b{left:0}
.mr_frUl ul li:hover .bg div .l{top:0;}
.mr_frUl ul li:hover .bg div .r{top:0;}*/