body {
	margin: 0;
	font-family: Microsoft Yahei;
}
div, a {
	box-sizing: border-box;
}
a {
	color: #000000;
	text-decoration: none;
}
.page {
	position: fixed;
	top: 0;
	right: 0;
	left: 0;
	bottom: 0;
}

.nav {
	position: fixed;
	right: 0;
	bottom: 0;
	padding: 13px 54px;
	background-color: rgba(0, 0, 0, 0.5);
	color: #ffffff;
	display: flex;
	align-items: center;
}
.nav span {
	display: inline-block;
	margin-left: 20px;
	font-size: 28px;
}
.nav-container {
	position: fixed;
	right: 0;
	bottom: 65px;
}
.nav-container .nav-item {
	display: block;
	width: 222px;
	color: #ffffff;
	font-size: 24px;
	text-align: center;
	padding: 15px 0;
	background-color: rgba(0, 0, 0, 0.5);
	border-bottom: 1px solid #ffffff;
}
.nav-container .nav-item:hover {
	background-color: rgba(0, 0, 0, 0.7) !important;
}
.back-icon {
	width: 30px;
	margin-bottom: -5px;
	margin-right: 5px;
}
.nav-hide {
	display: none;
	position: fixed;
	right: 222px;
	bottom: 52%;
	padding: 40px 8px ;
	background-color: rgba(0, 0, 0, 0.7);
	color: #ffffff;
}
@media screen and (max-width: 1080px) {
    .nav {
    	position: fixed;
    	right: 0;
    	bottom: 50%;
    	padding: 40px 18px ;
    	background-color: rgba(0, 0, 0, 0.5);
    	color: #ffffff;
    	display: flex;
    	flex-direction: column;
    }
    .nav span {
    	display: inline-block;
		width: 30px;
    	margin-left: 0px;
		margin-top: 16px;
    	font-size: 28px;
    }
    .nav-container {
    	bottom: 40%;
    }
    .nav-container .nav-item {
    	background-color: rgba(0, 0, 0, 0.7);
    }
    .nav-container .nav-item:hover {
    	background-color: rgba(0, 0, 0, 0.5) !important;
    }
}