* {
	margin: 0px;
	padding: 0px;
	list-style: none;
}
body{
	background: #f9f9f9;
}
nav{
	width: 1140px;
	margin: 0px auto;
}

.nav-a{
	height: 70px;
}

.nav-log{
	height: 70px;
	width: 184px;
	float: left;
	line-height: 85px;
}
.nav-log img{
	height: 36px;
	width: 180px;
}
.header-nav{
	width: 955px;
	height: 70px;
	line-height: 70px;
	display: flex;
	flex-direction: row;
	flex-wrap: nowrap;
	justify-content: space-between
}
.div-nav-a{
	width: 700px;
	height: 70px;
}
.div-nav-b{
	height: 35px;
	width: 150px;
	background: hsla(0, 0%, 100%, .1);
	border-radius: 20px;
	margin-top: 17px;
	margin-left: 10px;
	
}
.div-nav-b input{
	height: 35px;
	width: 105px;
	vertical-align: top;
	background: hsl(0deg 0% 49% / 10%);
	outline:none;
	border: none;
	color: #999999;
}
input::-webkit-input-placeholder,   
textarea::-webkit-input-placeholder {   
    color: #fff;   
}  


.div-nav-b img{
	width: 15px;
	height: 15px;
	margin-top: 10px;
	vertical-align: top;
	cursor: pointer;
}
.header-nav a{
	text-decoration: none;
	font-size: 17px;
	color: black;
	margin-left: 17px;
}

.div-nav-a img{
	height: 16px;
	width: 16px;
}
.header-rigin{
	width: 211px;
	height: 70px;
	line-height: 70px;
	font-size: 17px;
}
.header-rigin a{
	text-decoration: none;
}
.Signin{
	margin-left: 70px;
	color: black;
}
.register{
	padding: 7px 15px;
	background: #2e7eee;
	margin-left: 52px;
	color: #fff;
}
/* 导航栏结束 */


/* 头部 */

header{
	width: 1140px;
	margin: 0px auto;
	height: 43px;
	margin-top: 20px;
	line-height: 43px;
	font-size: 12px;
	color: #666666;
}

header a{
	text-decoration: none;
	margin-left: 10px;
}

main{
	width: 1140px;
	margin: 0px auto;
	height: 1000px;
	position: relative;
}
.main-top{
	height: 193px;
	width: 813px;
	background: #fff;
	border: 1px solid #eeeeee;
}
.top-a{
	height: 35px;
	width: 813px;
	background: #fff;
	margin-top: 36px;
}

.top-a1{
	font-size: 25px;
	margin-left: 31px;
	
}
.top-a2{
	margin-left: 20px;
	font-size: 12px;
	background: #80c269;
	color: #fff;
	border-radius: 18px;
	padding: 2px 5px;
	margin-top: 1px;
}
.top-b{
	height: 50px;
	width: 813px;
	line-height: 50px;
	margin-top: 10px;
	margin-left: 31px;
}
.top-b span{
	margin-right: 10px;
	font-size: 15px;
	color: #999999;
}
.main-top p{
	margin-left: 31px;
	margin-right: 35px;
	margin-top: 3px;
	color: #666666;
}


.main-content{
	height: 404px;
	width: 813px;
	background: #fff;
	margin-top: 10px;
}


.main-content-a{
	height: 65px;
	width: 813px;
	margin-top: 36px;
}
.main-content-a span{
	margin-top: 10px;
	margin-left:31px;
	font-size: 20px;
	line-height: 84px;
}
.main-content hr{
	width: 753px;
	margin-left:31px ;
	margin-bottom: 20px;
	border-color: #eeeeee;
}

.main-content-b{
	width:753px;
	height: 298px;
	background: #f7f7f7;
	margin-left:31px ;
}
.main-content-b1{
	width: 376.5px;
	height: 298px;
	background: #f7f7f7;
	float: left;
}
.main-content-b1 ul{
	margin-top: 25px;
	margin-left: 50px;
}
.main-content-b1 ul li{
	line-height: 37px;
	font-size: 18px;
	color: #565656;
}

.main-content-b2{
	width: 376.5px;
	height: 298px;
	background: #f7f7f7;
	float: left;
}
.main-content-b2 ul{
	margin-top: 25px;
	margin-left: 50px;
}
.main-content-b ul li{
	line-height: 37px;
	font-size: 18px;
	color: #565656;
}


.main-middle{
	height: 2330px;
	width: 813px;
	background: #fff;
	margin-top: 10px;
}

.main-middle-a{
	height: 2270px;
	width: 753px;
	margin-left: 31px;
	margin-top: 30px;
	float: left;
	display: flex;
	flex-direction: column;
	flex-wrap: nowrap;
	justify-content: space-around;
}
.main-middle-a3{
	height: 34px;
	width: 753px;
}
.main-middle-a2{
	height: 58px;
	width: 751px;
	background: #f7f7f7;
	border: 1px solid #efefef;
}
.main-middle-a1{
	height: 99px;
	width: 751px;
	border: 1px solid #efefef;
}
.main-middle-a3 span{
	margin-top: 10px;
	font-size: 20px;
	line-height: 47px;
}
.main-middle-a4{
	height: 34px;
	width: 100px;
	float: right;
	
}
.main-middle-a4 span{
	font-size: 15px;
	color: #666666;
	margin-left: 10px;
}

.main-middle-a1-a{
	height: 58px;
	width: 751px;
	background: #f7f7f7;
}
.middle-a1-a{
	float: left;
	height: 24px;
	width: 24px;
	margin-top: 20px;
	margin-left: 10px;
}
.middle-a1-a img{
	height: 24px;
	width: 24px;
}
.middle-a1-b{
	margin-top: 16px;
	float: left;
	margin-left: 10px;
	color: #666666;
}
.middle-a1-b span{
	margin-right: 20px;
}

.main-middle-a1-c{
	height: 58px;
	width: 230px;
	float: right;
	line-height: 58px;
	color: #2e7eee;
	display: none;
	cursor: pointer;
}
.main-middle-a1:hover .main-middle-a1-c{
	display: block;
}


.main-middle-a1-a span{
	line-height: 30px;
}



.main-middle-a1-b{
	height: 41px;
	width: 751px;
	background: #ffffff;
	line-height: 41px;
}
.main-middle-a1-b p{
	margin-left: 15px;
	font-size: 13px;
	color: #bdbdbd;
}

.main-middle hr{
	width: 753px;
	margin-bottom: 14px;
	border-color: #eeeeee;
}

.main-introduce{
	height: 1032px;
	width: 813px;
	background: #fff;
	margin-top: 10px;
	border: 1px solid #eeeeee;
}
.main-introduce-a {
    height: 972px;
    width: 753px;
    margin-left: 31px;
    margin-top: 30px;
    float: left;
    display: flex;
    flex-direction: column;
    flex-wrap: nowrap;
    justify-content: space-around;
}
.main-introduce-a1{
	height: 36px;
	width: 753px;
	background: #fff;
}
.main-introduce-a1 span{
    margin-top: 10px;
    font-size: 20px;
    line-height: 47px;
}
.main-introduce hr {
    width: 753px;
    margin-bottom: 14px;
    border-color: #eeeeee;
}

.main-introduce-a2{
	height: 38px;
	width: 753px;
	font-size: 18px;
	background: #eff5f5;
	color: #637375;
	line-height: 38px;
}
.main-introduce-a3{
	height: 345px;
	width: 753px;
	background: #f7f7f7;
	font-size: 16px;
}
.main-introduce-a3 ul{
	margin-top: 10px;
	margin-left: 42px;
}
.main-introduce-a3 ul li{
	list-style: disc;
	line-height: 36px;
	color: #666666;
}



.main-introduce-a4{
	height: 52px;
	width: 753px;
	background: #fff;
}

.main-introduce-a4 ul li{
	list-style: disc;
	line-height: 52px;
	color: #666666;
}
.main-introduce-a4 ul{
	margin-left: 42px;
}
.main-introduce-a4 a{
	color: #2e7eee;
}

.main-introduce-a5{
	height: 65px;
	width: 753px;
	background: #fff;
}

.main-introduce-a5 ul li{
	list-style: disc;
	line-height: 29px;
	color: #666666;
}
.main-introduce-a5 ul{
	margin-left: 42px;
}




.main-teacher{
	height: 255px;
	width: 813px;
	margin-top: 10px;
	border: 1px solid #eeeeee;
	background: #fff;
}

.main-teacher-a{
	height: 195px;
	width: 753px;
	margin-left: 31px;
	margin-top: 30px;
	float: left;
	display: flex;
	flex-direction: column;
	flex-wrap: nowrap;
	justify-content: space-around;
}


.main-teacher-a1{
	height: 36px;
	width: 753px;
}
.main-teacher-a1 span{
    margin-top: 10px;
    font-size: 20px;
    line-height: 47px;
}

.main-teacher-a2{
	height: 86px;
	width: 753px;
}

.main-teacher-a3{
	height:70px;
	width: 70px;
	background: #eff5f5;
	float: left;
	margin-top: 6.5px;
}
.main-teacher-a3 img{
	height:70px;
	width: 70px;
}
.main-teacher-a4{
	height: 86px;
	width:600px ;
	float: left;
	margin-left: 20px;
}
.main-teacher-a4 span{
	line-height: 30px;
	color: #666666;
}
.main-teacher-a4 p{
	line-height: 30px;
	color: #666666;
}
.main-teacher-a4 a{
	text-decoration: none;
	color: #666666;
}


.main-comment{
	height: 1500px;
	width: 813px;
	background: pink;
	margin-top: 10px;
}
.main-comment-a{
	height: 1440px;
	width: 753px;
	margin-left: 31px;
	margin-top: 30px;
	background: red;
	float: left;
	display: flex;
	flex-direction: column;
	flex-wrap: nowrap;
	justify-content: space-around;
}







.main-buttom{
	height: 380px;
	width: 813px;
	background: #fff;
	margin-top: 10px;
	border: 1px solid #eeeeee;
}
.main-buttom-a{
	height: 329px;
	width: 753px;
	margin-left: 31px;
	margin-top: 30px;
	float: left;
	display: flex;
	flex-direction: column;
	flex-wrap: nowrap;
	justify-content: space-around;
}

.main-buttom-a1{
	height: 36px;
	width: 753px;
}
.main-buttom-a1 span{
    margin-top: 10px;
    font-size: 20px;
    line-height: 47px;
}

.main-buttom-a2{
	height: 249px;
	width: 753px;
	display: flex;
	flex-direction: row;
	flex-wrap: wrap;
	justify-content: space-between;
}

.main-buttom-a2 div{
	height: 249px;
	width: 231px;
	background: #fff;
}
.main-b ul{
	width: 753px;
	height: 249px;
	display: flex;
	flex-direction: row;
	flex-wrap: wrap;
	justify-content: space-between;
}
.items{
	height: 249px;
	width: 231px;
	background: #fff;
	cursor: pointer;
}
.items a{
	text-decoration: none;
}
.items img{
	height: 147px;
	width: 231px;
	
}
.items-a{
	color: #666666;
	margin-left: 12px;
	line-height: 42px;
}
.items-b{
	color: #898989;
	margin-left: 12px;
	line-height: 42px;
	font-size: 13px;
}
.items-c{
	color: #898989;
	line-height: 42px;
	margin-left: 12px;
	font-size: 13px;
}

/* 定位 */
.dw{
	height: 180px;
	width: 315px;
	background: #fff;
	position: fixed;
	right: 104px;
}
.dw img{
	height: 171px;
	width: 305px;
	margin-left: 4.5px;
	margin-top: 4.5px;
}

.dw1{
	height: 360px;
	width: 315px;
	background: #ffffff;
	position: fixed;
	right: 104px;
	top: 313px;	
	display: flex;
	flex-direction: row;
	flex-wrap: wrap;
	justify-content: space-between;
}
.dw2{
	height:24px;
	width: 315px;
	margin-top: 20px;
	font-size: 16px;
}
.dw2 span{
	margin-left: 25px;
	line-height: 30px;
	
}
.dw3{
	height: 30px;
	width: 275px;
	text-align: center;
	line-height: 30px;
	background: #fff7f0;
	margin-left: 20px;
	border-radius: 10px;
}
.dw3 a{
	text-decoration: none;
	color: #ff5905;
	font-size: 13px;
}
.dw4{
	height: 48px;
	width: 275px;
	text-align: center;
	line-height: 48px;
	font-size: 18px;
	margin-left: 20px;
	background: #2e7eee;
	border-radius: 8px;
}
.dw4 a{
	text-decoration: none;
	color: #fff;
}
.dw5{
	height: 28px;
	width: 315px;
}
.dw5 img{
	margin-left: 25px;
}
.dw6{
	height: 21px;
	width: 275px;
	margin-left: 20px;
	color: #898989;
	font-size: 21px;
	line-height: 21px;
}
.dw7{
	height: 27px;
	width: 315px;
}