.leftTabs{
	padding: 0 20px;
	width: 280px;
	color: #101010;
	font-size: 16px;
}
.leftTabs .tabItem{
	min-height: 50px;
	margin-bottom: 3px;
}
.leftTabs .itemBorderLeft{
	min-height: 50px;
	border-left: 3px solid #ccc;
	padding: 0 20px;
	display: flex;
	align-items: center;
	justify-content: space-between;
}
.leftTabs .itemBorderLeft:hover{
	border-left: 3px solid #101010;
	text-decoration: underline;
	cursor: pointer;
}
.leftTabs .currentPage{
	border-left: 3px solid #101010;
	background: #f7f5f1;
}

.contentDetail{
	width: 1200px;
	padding: 0 30px;
	font: 1.2rem / 135% Sandvik Sans Regular, Tahoma, Verdana, sans-serif;
	color: #101010;
}
.contentDetail .bigTitle{
	font: 3.5rem / 100% Sandvik Sans Headline, Tahoma, Verdana, sans-serif;
}
.contentDetail .title2{
	font: 2.5rem / 100% Sandvik Sans Headline, Tahoma, Verdana, sans-serif;
	font-weight: 600;
}
.contentDetail .title3{
	font: 1.5rem / 100% Sandvik Sans Headline, Tahoma, Verdana, sans-serif;
	font-weight: 600;
}
.contentDetail video{
	width: 1390px;
}
.contentDetail .noCircle{
	margin: 20px 0;
}
.contentDetail .noCircle li{
	list-style-type: none;
}

.threeInRow{
	width: 1100px;
	display: flex;
	flex-wrap: wrap;
}
.threeInRow .item{
	width: 316px;
	display: flex;
	flex-direction: column;
	margin-bottom: 30px;
	margin-right: 44px;
}
.threeInRow .item img{
	width: 316px;
	height: 158px;
	margin-bottom: 20px;
}
.threeInRow .item .link{
	display: flex;
	color: #73644b;
	text-decoration: underline;
}
.borderTop{
	padding-top: 50px;
	border-top: 1px solid #73644b;
}
.threeInRow .itemHover{
	font: 1rem / 135% Sandvik Sans Regular, Tahoma, Verdana, sans-serif;
}
.threeInRow .itemHover:hover{
	color: #73644b;
	cursor: pointer;
}
.threeInRow2{
	margin-top: 50px;
	width: 80vw;
	max-width: 1800px;
	display: flex;
	flex-wrap: wrap;
}
.threeInRow2 .item{
	background-color: #f7f5f1;
	border-radius: 5px;
	overflow: hidden;
	font-size: 1rem;
	width: 25vw;
	max-width: 500px;
	margin: 0 1vw 30px 0;
}
.threeInRow2 .item img{
	width: 25vw;
	height: 394px;
	margin-bottom: 20px;
}
.threeInRow2 .item .link{
	display: flex;
	color: #73644b;
	text-decoration: underline;
}
.moreInfo a{
	color: #73644b;
	text-decoration: underline;
}
.problem{
	width: 78vw;
	padding: 0 30px;
	background-color: #f7f5f1;
	margin-bottom: 30px;
}
.problem .problemTitle{
	font-size: 1.2rem;
	display: flex;
	justify-content: space-between;
	align-items: center;
	padding: 20px 0;
}
.problem .problemContent{
	padding-bottom: 20px;
	display: none;
}
.problemSelect{
	background-color: #ebe6dc;
}
.problemSelect .problemContent{
	display: block;
}

.knowledgeList{
	width: 80vw;
	margin: 30px 0;
	display: flex;
	flex-wrap: wrap;
}
.knowledgeList .knowledgeItem{
	width: 358px;
	border-radius: 5px;
	overflow: hidden;
	background: #ebe6dc;
	margin-right: 30px;
	margin-bottom: 30px;
}
.knowledgeList .knowledgeItem:hover{
	text-decoration: underline;
}
.knowledgeList .knowledgeItem img{
	width: 358px;
	height: 144px;
}

.videoWrap{
	padding: 50px 0;
	border-top: 1px solid #BEAF93;
	border-bottom: 1px solid #BEAF93;
}
.videoWrap video{
	width: 981px;
	height: 552px;
}
.videoWrap .roll{
	width: 500px;
	height: 552px;
	overflow: auto;
	padding: 0 10px;
	font-size: 16px;
}
.videoWrap .roll .rollItem{
	position: relative;
	width: 451px;
	height: 133px;
	margin-top: 10px;
	background: #f7f5f1;
	display: flex;
}
.videoWrap .roll .rollItem:hover{
	text-decoration: underline;
}
.videoWrap .roll .rollItem img{
	width: 210px;
	height: 133px;
}
.videoWrap .roll .select{
	background: #ebe6dc;
}
.videoWrap .roll .rollItem .time{
	position: absolute;
	bottom: 5px;
	left: 150px;
	z-index: 9;
	width: 50px;
	height: 25px;
	line-height: 25px;
	text-align: center;
	background: #101010;
	color: #fff;
	text-decoration: none !important;
}