*{
  margin: 0;
  padding: 0;
}
a{
  text-decoration: none;
}
a:hover{
  text-decoration: none;
}
i ,b,em{
    font-style: normal;
}
li{
  list-style: none;
}
body{
  font-family: "微软雅黑";
}
img{
  border:0;
}
.bespread{
	width: 100%;
	display: block;
}
.content{
	width: 1290px;
	margin:0 auto 0;
	padding-top: 92px;
	background: rgba(255,255,255,.5);
}
.viewimg{
	width: 100%;
	height: 100%;
	display: block;
}
.areatitle{
	width: 1250px;
	height: 100px;
	position: relative;
	margin:0 auto 60px;
}
.intro{
	background: url(../images/intro.png);
	background-size: 100% 100%;
}
.class{
	background: url(../images/class.png);
	background-size: 100% 100%;
}
.areatitle .topic{
	display: inline-block;
	width: 313px;
	line-height: 98px;
	color: #fff;
	font-size: 38px;
	position: relative;
	margin-left: 98px;
	box-sizing: border-box;
	text-align: center;
	overflow: hidden;
	text-overflow: ellipsis;
	white-space: nowrap;
}
.more{
	position: absolute;
	right: 0;
	bottom: 30px;
	color: #9a1b62;
	font-size: 20px;
}
.project_intro{
	margin-bottom: 90px;
}
.project_intro p{
	font-size: 22px;
	color: #9a1b62;
	line-height: 35px;
	text-indent: 45px;
}
.classview-flex{
    min-height: 500px;
    max-height: 830px;
    overflow: auto;
}.classview-flex::-webkit-scrollbar {/*滚动条整体样式*/
    width: 15px;
    border-radius: 5px;
    height: 1px;
}
.classview-flex::-webkit-scrollbar-thumb {/*滚动条里面小方块*/
    background: linear-gradient(#c3518d,#fbf4f8);
    border-radius: 5px;
}
.classview-flex::-webkit-scrollbar-track {/*滚动条里面轨道*/
    background: #dcdddd;
    border-radius: 5px;
}
.class-flex-item{
	display: block;
    float: left;
    position: relative;
    height: 228px;
    margin-left: 20px;
    margin-bottom: 48px;
    max-width: 403px;
}
.class-flex-item video{
	width: 100%;
	height: 100%;
	display: block;
	object-fit: fill;
}
.stage{
	background: #ec6438;
	padding:0px 15px 2px;
	border-bottom-right-radius: 3px;
	border-bottom-left-radius: 3px;
	color: #fff;
	position: absolute;
	left: 50%;
	top: 0px;
	margin-left: -43px;
}
.bkground{
	width: 100%;
	display: block;
	margin-top: -449px;
	z-index: -1;
	width: 100%;
	height: 449px;
	background: linear-gradient(#fff,#c276a1)
}
.playdiv{
	position: absolute;
	top: 0;
	left: 0;
	width: 100%;height: 100%;
	background: rgba(0,0,0,.4);
}
.playdiv>img{
	display: inline-block;
	position: absolute;
	width: 48px;
	left: 50%;
	top: 50%;
	margin-left: -24px;
	margin-top: -24px;
}