* {
	margin: 0;
	padding: 0;
}

html {
	height: 100%;
	background: #fff;
}

body {
	min-height: 100%;
	background: #fff;
	display: flex;
	flex-direction: column;
	font-family: "Microsoft YaHei", "PingFang SC", "Source Han Sans", sans-serif;
}

/* header */

.header-part {
	width: 100%;
	height: 60px;
	flex-shrink: 0;
	display: flex;
	justify-content: center;
	background: #fff;
}

.menu-bar {
	width: 100%;
	height: 100%;
	max-width: 1180px;
	display: flex;
}

.logo {
	display: flex;
	align-items: center;
	margin-left: 20px;
}

.logo img {
	width: 77px;
	height: 32px;
}

.menu-bar ul {
	list-style: none;
	display: flex;
	margin-left: 60px;
}

.menu-bar li {
	display: flex;
    align-items: center;
	padding: 0 10px;
}

.menu-bar a {
	font-size: 15px;
	color: #555;
	text-decoration: none;
	padding: 5px;
}

.menu-bar .active a {
	color: #008c33;
	border-bottom: solid 2px #34a853;
}

/* main */

.main-part {
	width: 100%;
	flex: 1 0 auto;
	background: #fff;
	position: relative;
}

.main-part .placeholder {
	width: 100%;
	height: 100%;
	display: flex;
    justify-content: center;
	align-items: center;
	position: absolute;
    top: 0;
    left: 0;
}

/* footer */

.footer-part {
	width: 100%;
	height: 48px;
	flex-shrink: 0;
	display: flex;
    justify-content: center;
	align-items: center;
	font-size: 12px;
    color: #666;
}

.footer-part .registration {
	margin-left: 30px;
}

.footer-part a {
	color: #666;
	text-decoration: none;
}