.photo {
	position: absolute;
	top: 50%;
	left: 50%;
	min-width: 100%;
	min-height: 100%;
	width: auto;
	height: auto;
	z-index: -100;
	-webkit-transform: translateX(-50%) translateY(-50%);
	transform: translateX(-50%) translateY(-50%);
	-webkit-transition: 1s opacity;
	transition: 1s opacity;
}

.photocontainer {
	position: fixed;
	width: 100%;
	height: 100%;
	overflow: hidden;
	z-index: -100;
}

.photocontainer:before {
	content: "";
	position: absolute;
	width: 100%;
	height: 100%;
	display: block;
	z-index: -1;
	top: 0;
	left: 0;
	background: rgba(25, 29, 34, .65);
}

.box {
	width: 1200px;
	height: 2400px;
	background: #000000;
	margin: auto;
	margin-top: 50px;
	margin-bottom: 50px;
}

.one {
	color: #66b8ff;
	float: left;
	font-size: 40px;
	font-family: "楷体";
	margin: 100px 0 0 200px;
}

.two {
	color: #FFFFFF;
	float: left;
	font-size: 40px;
	font-family: "楷体";
	margin: 100px 0 0 50px;
}

.three {
	color: #2a0eff;
	float: left;
	font-size: 20px;
	font-family: "楷体";
	margin: 120px 0 0 50px;
}

.xiantiao {
	width: 1000px;
	margin: 50px 0 0 100px;
}

.top {
	width: 900px;
	margin: 50px 0 0 150px;
}

.diyiduan {
	color: #FFFFFF;
	font-size: 20px;
	width: 850px;
	margin: 20px 0 0 180px;
}

.bottom {
	width: 900px;
	margin: 50px 0 0 150px;
}

.dierduan {
	color: #FFFFFF;
		font-size: 20px;
		width: 850px;
		margin: 20px 0 0 180px;
}