* {
	margin: 0 0;
	padding: 0 0
}

body {
	font-size: 16px;
	color: #262626;
	font-weight: 400;
	position: relative;
}

a {
	text-decoration: none;
	color: #262626;
}

li {
	list-style: none;
}

.active {
	font-weight: bold;
	border-bottom: 3px solid #FF7F00;
}

.color {
	color: #55aaff;
}

.login,
.register {
	cursor: pointer
}

.header_content {
	width: 1200px;
	height: 70px;
	line-height: 70px;
	margin: 0 auto;
	display: flex;
	justify-content: center;
}

.header_content img {
	vertical-align: middle;
}

.header_content ul {
	display: flex;
	justify-content: center;
}

.header_content ul li {
	padding: 0 25px;
}

.txt {
	width: 100%;
	margin: 70px 0 100px 0;
}

.txt .txt_content {
	width: 1200px;
	margin: 0 auto;
	text-align: center;
}

.txt .txt_content h3 {
	font-size: 24px;
}

.txt .txt_content .eng {
	font-size: 18px;
	color: #FFAC5A;
	font-weight: 400;
	margin-top: 8px;
}

.txt .txt_content .describe {
	margin-top: 24px;
	line-height: 30px;
	text-align: left;
}

.img_box {
	width: 100%;
}

.img_box ul {
	width: 1200px;
	margin: 0 auto;
	display: flex;
	flex-wrap: wrap
}

.img_box ul li {
	width: 390px;
	margin-right: 9px;
}

.img_box ul li :nth-child(3n) {
	margin-right: 0;
}

.img_box ul li img {
	width: 100%;
	vertical-align: middle;
	margin-bottom: 9px;
}

footer {
	color: #FFFFFF;
	font-size: 16px;
	background: #363636;
	text-align: center;
	line-height: 30px;
	padding: 19px 0;
	margin-top: 250px;
}

footer a {
	color: white;
}