.container {
	width: 100%;
	background: #edf1f2;
	padding-bottom: 30px;
}

.position {
	width: 1200px;
	margin: 0px auto 0;
	padding-top: 20px;
	font: normal 14px/26px "microsoft yahei";
	color: #666666;
	height: 44px;
}

.position a {
	color: #666666;
}
.imgtext-course {
	width: 1200px;
	margin: 0 auto;
	background-color: #fff;
	position: relative;
	height: 338px;
}
.imgtext-course .img-left {
	width: 500px;
	height: 338px;
	float: left;
	position: relative;
}
.imgtext-course .img-left img {
	width: 500px;
	height: 338px;
}
.imgtext-course .text-right {
	float: right;
	height: 338px;
	width: 660px;
	padding-right: 10px;
}

.imgtext-course .text-right .tl {
	margin-top: 25px;
	width: 650px;
	word-break: break-all;
	position: relative;
	font: normal 24px/32px "microsoft yahei";
}
.imgtext-course .text-right .desc{
	padding: 18px 0;
	font:normal 12px/22px "microsoft yahei";
	color: #999;
}
.imgtext-course .text-right .desc b{
	font:normal 14px/22px "microsoft yahei";
	color: #999;
	margin-right: 18px;
}
.imgtext-course .text-right .desc img{
	display: inline-block;
	vertical-align: middle;
	margin-top: -3px;
}
.imgtext-course .text-right .desc img.tx{
	height: 22px;
	width: 22px;
	border-radius: 50%;
	margin-right: 10px;
	
}
.imgtext-course .text-right .desc i{
	font:normal 12px/22px "microsoft yahei";
	height: 22px;
	margin-left: 8px;
}
.imgtext-course .text-right .intro b{
	font:normal 14px/24px "microsoft yahei";
	color: #aaaaaa;
}
.imgtext-course .text-right .intro{
	font:normal 14px/24px "microsoft yahei";
	color: #666;
	max-height: 120px;
	overflow: hidden;
	word-break: break-all;
}
.bot-rt {
	position: absolute;
	right: 0;
	top: 3px;
}

.bot-rt .baiduBtn {
	float: right;
}

.bot-rt .baiduBtn .bds_more1 {
	cursor: pointer;
	text-indent: 14px;
	height: 25px;
	width: 45px;
	margin: 0;
	font: normal 14px/25px "microsoft yahei";
	display: inline-block;
	margin-right: 7px;
	background: url(../Images/share.png) 0 2px no-repeat;
	color: #66add3;
}

.bot-rt .collect {
	color: #999999;
	width: 60px;
	float: right;
	height: 25px;
	text-indent: 30px;
	font: normal 14px/25px "microsoft yahei";
	background: url(../Images/share.png) 0 -36px no-repeat;
}
.text-right .btn {
	margin-top: 18px;
	width: 100%;
	float: left;
}

.text-right .btn a {
	width: 218px;
	height: 43px;
	float: left;
	margin-right: 10px;
	text-align: center;
	font: normal 16px/43px "microsoft yahei";
	border: 1px solid #66add3;
	background-color: #fff;
	border-radius: 3px;
	color: #66add3;
}

.text-right .btn a.join {
	background: #5bb5e5;
	color: #fff;
}
.container2 {
	background-color: #fff;
	width: 100%;
	padding-top: 20px;
	padding-bottom: 40px;
}
.container2:after{
	clear: both;
	content: '';
	display: block;
	height: 0;
}
.main {
	width: 1200px;
	margin: 0 auto;
}

.mainLeft {
	float: left;
	width: 860px;
	word-break:break-all;
}

.main .hd {
	height: 52px;
	border-bottom: 1px solid #dcdcdc;
	position: relative;
}

.main .hd h3 {
	position: absolute;
	bottom: -1px;
	font: normal 20px/50px "microsoft yahei";
}

.main .hd h3 a {
	color: #333;
	padding: 0 2px;
	display: inline-block;
	margin-right: 70px;
	border-bottom: 3px solid #66add3;
}
.mainLeft .course_list {
	float: left;
	width: 100%;
}

.mainLeft .course_list li {
	background: #fff;
	width: 100%;
	margin-top: 30px;
	height: 150px;
	text-align: center;
	font: normal 14px/50px "microsoft yahei";
}
.mainLeft .course_list li .rt *{
	text-align: left;
}
.mainLeft .course_list li .lf {
	float: left;
	width: 240px;
	height: 150px;
	position: relative;
}

.mainLeft .course_list li .lf img {
	width: 100%;
	height: 100%;
}

.course_list li .lf i {
	position: absolute;
	width: 86px;
	height: 29px;
	right: -10px;
	top: 0;
	background: url(../Images/course.png) 0 -133px no-repeat;
	font: normal 14px/26px "microsoft yahei";
	color: #fff;
	text-indent: 15px;
}

.course_list li .lf i.playback {
	background: url(../Images/course.png) 0 -133px no-repeat;
}
.mainLeft .course_list li .lf b.video-icon{
	height: 48px;
	width: 48px;
	position: absolute;
	left: 50%;
	top: 50%;
	margin-left: -24px;
	margin-top: -24px;
	background: url(../Images/video-icon.png) 0 0 no-repeat;
}
.course_list li .rt {
	float: left;
	margin-left: 20px;
	width: 600px;
}

.course_list li .rt .tl {
	font: normal 18px/20px "microsoft yahei";
	margin-top: 18px;
}

.course_list li .rt .tl a {
	color: #333;
}

.course_list li .rt .tl a:hover {
	color: #66add3;
}

.course_list li .rt .info {
	margin-top: 14px;
	line-height: 20px;
}

.course_list li .rt .info span {
	font: normal 14px/20px "microsoft yahei";
	padding-left: 20px;
	color: #555555;
}

.course_list li .rt .info span.name {
	background: url(../Images/course.png) 0 -314px no-repeat;
	margin-right: 20px;
}

.course_list li .rt .info span.time {
	background: url(../Images/course.png) 0 -231px no-repeat;
}

.course_list li .rt .desc {
	margin-top: 3px;
	font: normal 14px/34px "microsoft yahei";
	color: #888888;
	height: 34px;
	overflow: hidden;
	white-space: nowrap;
	text-overflow: ellipsis;
}

.course_list li .rt .ask {
	width: 90px;
	height: 30px;
	border-radius: 3px;
	font: normal 14px/30px "microsoft yahei";
	margin-top: 6px;
	text-align: center;
	color: #fff;
	background: #ff6600;
}
.mainRight{
	float: right;
	width: 260px;
}
.mainRight .lecture{
	width: 100%;
	position: relative;
	margin-top: 30px;
	height: 300px;
	overflow: hidden;
}
.mainRight .lecture ul{
	position: absolute;
}
.mainRight .lecture ul li{
	width: 258px;
	border-radius: 5px;
	overflow: hidden;
	float: left;
	border: 1px solid #ededed;
	height: 290px;
	box-shadow: 0 0 10px #ddd;
}
.mainRight .lecture ul li .tx{
	padding-top: 20px;
	height: 150px;
	text-align: center;
	background: #5bb5e5;
}
.mainRight .lecture ul li .tx img{
	height: 105px;
	width: 105px;
	border-radius: 50%;
}
.mainRight .lecture ul li .tx p{
	margin-top: 8px;
	font:normal 18px "microsoft yahei";
	color: #fff;
}
.mainRight .lecture ul li .intro{
	font:normal 14px/24px "microsoft yahei";
	margin: 10px 20px 0 20px;
	color: #666666;
	height: 96px;
	overflow: hidden;
	word-break:break-all;
}
.mainRight .lecture .preNext {
	height: 28px;
	width: 18px;
	position: absolute;
	top: 112px;
	z-index: 9;
	cursor: pointer;
	opacity: 0.6;
	filter:alpha(opacity=60);
}
.mainRight .lecture .preNext:hover{
	opacity: 1;
	filter:alpha(opacity=100);
}
.mainRight .lecture .pre{
	left: 15px;
	background: url(../Images/course.png) -280px -159px no-repeat;
}
.mainRight .lecture .next{
	right: 15px;
	background: url(../Images/course.png) -280px -125px no-repeat;
}