.a1_min{
	display: flex;
	background: #fff;
	padding: 30px;
}
.a1_img{
	width: 600px;
	height: 366px;
}
.a1_img img{
	width: 100%;
	height: 100%;
	object-fit: cover;
}
.a1_left{
	width: 600px;
	height: 366px;
	position: relative;
}
.a1_left>div:nth-child(2){
position: absolute;
top: 50%;
left: 50%;
transform: translate(-50%,-50%);

}
.a1_left>div:nth-child(2){
	cursor: pointer;
}
.a1_box{
	position: relative;
}
.a1_video{
	width: 600px;
	height: 366px;
	position: absolute;
	top: 0;
	display: none;
}
.a1_video video{
	width: 100%;
	height: 100%;
	
}
main{
	background: #f1f3f3;
}
.a1_right{
	padding-left: 30px;
}
.a1_right>div{
	margin-bottom: 50px;
}
.a1_right>div:nth-child(1){
	font-size: 30px;
	font-weight: bold;
}
.a1_right>div:nth-child(2){
	font-size: 26px;
	font-weight: bold;
	color: #e51212;
}
.a1_right>div:nth-child(3){
	width: 120px;
	height: 40px;
	display: flex;
	align-items: center;
	justify-content: center;
	background: #15a286;
	color: #fff;
	border-radius: 5px;
	cursor: pointer;
}
.a1_body{
	background: #fff;
}
.a1_tab ul{
	display: flex;
}
.a1_tab{
	border-bottom: 1px solid #dedede;
	padding-left: 30px;
	
}
.a1_tab ul li{
	margin-right: 56px;
	
	padding-bottom: 30px;
	cursor: pointer;
}
.a1_tab ul li.curren{
	color: #15a286;
	border-bottom: 2px solid #15a286;
}
.a1_pic{
	width: 130px;
	height: 130px;
	margin: auto;
}
.a1_pic img{
	width: 100%;
	height: 100%;
	border-radius: 50px;
}
.a1_A{
	padding-top: 50px;
}
.a1_name{
	font-size: 24px;
	font-weight: bold;
	padding-top: 30px;
	padding-bottom: 30px;
	text-align: center;
}
.a1_max{
	padding-left: 30px;
	padding-right: 30px;
}
.a1_P{
	color: #444;
	line-height: 25px;
	padding-bottom: 40px;
}
.Course_tit{
	font-size: 24px;
	font-weight: bold;
	padding-bottom: 30px;
}
.Course_text{
	color: #444;
	padding-bottom: 30px;
}
.style_css{
color: #444;
font-weight: bold;
padding-bottom: 20px;
}
.Course_A p{
	padding-bottom: 18px;
}
.Course_on{
	padding-bottom: 40px;
}
.Course_on:nth-child(2) .Course_A p{
	position: relative;
	padding-left: 15px;
	
}
.Course_on:nth-child(2) .Course_A p::before{
	position: absolute;
	content: '·';
	left: 0;
	top:-12px;
	color: #15a286;
	font-size: 30px;
}
.a1_A:last-child{
	padding-top: 0;
}
.Course_ons>div:nth-child(1){
	font-size: 24px;
	color: #444;
	font-weight: bold;
	padding-bottom: 30px;
}
.textarea_input{
	height: 160px;
	width: 100%;
	border: 1px solid #dedede;
	margin-bottom: 30px;
	background: #f2f2f2;
}
.textarea_input textarea{
	width: 100%;
	height: 100%;
}
.Course_ons>div:nth-child(3){
	cursor: pointer;
	width: 120px;
	height: 40px;
	background: #15a286;
	display: flex;
	align-items: center;
	justify-content: center;
	color: #fff;
	float: right;
}
.Course_ons{
	    overflow: auto;
}
.aa_left{
	display: flex;
	align-items: center;
}
.aa_box{
	display: flex;
	justify-content: space-between;
	align-items: center;
}
.aa_left>div:nth-child(2){
	margin-left: 20px;
	font-size: 24px;
	font-weight: bold;
}
.aa_right{
	color: #15a286;
	
}
.aa_text{
	width: 1060px;
    float: right;
	line-height: 25px;
}
.Course_aa{
	    overflow: auto;
		border-bottom: 1px solid #dedede;
		padding-bottom: 30px;
		padding-top: 30px;
}
.Course_aa:last-child{
	border-bottom: 0;
}
.a1_max{
	
	margin-bottom: 56px;
}
.row_a1{
	overflow: hidden;
}
@media screen and (max-width:769px) {
	.a1_min{
		flex-wrap: wrap;
		padding: .2rem;
	}
	.a1_left{
		width: 100%;
		height: 100%;
	}
	.a1_img{
		width: 100%;
		height: 100%;
	}
	.a1_right{
		padding-left: 0rem;
	}
	.a1_right>div:nth-child(1){
		font-size: .35rem;
	}
	.a1_right>div{
		margin-bottom: .2rem;
	}
	.a1_right>div:nth-child(2){
		font-size: .36rem;
	}
	.a1_right>div:nth-child(1){
		padding-top: .2rem;
	}
	.aa_left>div:nth-child(2){
		font-size: .25rem;
	}
	.aa_text{
		width: 100%;
		padding-top: .3rem;
	}
}