*{
	margin: 0;
	padding: 0;
}
body{
	/*background-image: url(../img/heart.png);*/
	background-color: aliceblue;
	font-family: "PingFang SC","Microsoft YaHei","sans-serif";
	font-size: 16px;
}
.title{
	color: red;
	text-align: center;
	margin: 10px auto 0 auto;
	font-size: 40px;
}
.marquee{;
	behavior:alternate;
	font-size: 20px;
	color:#FFA07A;
	/*padding-bottom:10px;*/
	margin-bottom: -10px;
	margin-top: -10px;
}
.nav{
	/*width: 1600px;
	padding: 20px 0 20px 0;*/
	width: auto;
	padding: 20px 8% 20px 8%;
	margin: 0 auto;
	line-height: 1.5;
}
.navHyper{
	display: block;
	font-size:20px;
	font-weight: 100;
	width: 25%;
	float: left;
	/*margin: 0 auto;*/
	background-color: lightcyan;
	text-decoration: none;
	color: yellowgreen;
	text-align: center;
}
.navHyper:hover{
	background-color: #bfa;
	text-decoration: underline;
}
.content{
	/*width: 1600px;*/
	width: auto;
	height: auto;
	/*background-color: yellow;*/
	padding-left: 8%;
	padding-right: 8%;
	margin:0 auto;
	overflow: hidden;
	
	display: flex;            /* 使用弹性布局 */
	flex-direction: column;   /* 子元素竖直排列 */
	align-items: center;      /* (可选) 让子元素水平居中 */
	gap: 20px;                /* (可选) 元素之间的间距 */
}
.video{
	width: 100%;
	height: 100%;
	background-color: black;
	/* float:left; */
}
.commit{
	width: 75%;
	height: 100%;
	/*float: left;*/
	/*background-color: red;*/
}
.space{
	width: 75%;
	height: 100%;
	background-color: skyblue;
	overflow: hidden;
}
.sayings{
	width: 75%;
	height: 100%;
	float: left;
}
ul{
	font-size: 20px;
	line-height: 2;
	margin-top: 10px;
	margin-left: 30px;
}
.tree{
	width: 25%;
	height: 100%;
	float: left;
}
.tree a{
	width: 100%;
	height: 100%;;
}
.tree a img{
	height: 100%;
	height: 100%;
}
.footer{
	width: auto;
	height: 50px;
	padding-left: 8%;
	padding-right: 8%;
	/*background-color: orange;*/
	margin: 0 auto 0 auto;
	overflow: hidden;
}
.copyright{
	color: white;
	width: 100%;
	float: left;
	height: 45%;
	background-color: #8470FF;
	text-align: center;
	margin-bottom: 1px;
}
.link{
	width: 100%;
	height: 55%;
	background-color: aliceblue;
	float: left;
}
.footer a{
	text-decoration:none;
}
.footer a:link{
	color: black;
}
.footer a:hover{
	color: purple;
}
.footer a:visited{
	color:skyblue;
}
.footer a:active{
	color: blue;
}
.text{
	float: left;
	margin:6px 20px 0 35%;
}
.sicon{
	float: left;
	margin-top: 4px;
	margin-right: 20px;
}
.icon{
	width: 20px;
	height: 20px;
}
.fixed_left{
	position: fixed;
	top: 12%;
	left: 2%;
	background-color: aliceblue;
}
.fixed_right{
	position: fixed;
	top: 12%;
	left: 95%;
	background-color: aliceblue;
}
#mp4{
	display: block;
	width: 100%;
	height: 100%;
}
.words{
	width: 100%;
	height: 100%;
	background-color: bisque;
	text-align: center;
	font-size: 20px;
}