html, body {
	margin: 0;
	overflow: hidden;
	width: 100%;
	height: 100%;
	background: black;
	background: linear-gradient(to bottom, #000000 0%, #5788fe 100%);
	font-family:'Questrial','Noto Serif SC' ;
}

.filter {
	width: 100%;
	height: 100%;
	position: absolute;
	top: 0;
	left: 0;
	background: #fe5757;
	animation: colorChange 30s ease-in-out infinite;
	animation-fill-mode: both;
	mix-blend-mode: overlay;
}

@keyframes colorChange {
	0%, 100% {
		opacity: 0;
	}
	50% {
		opacity: .9;
	}
}

.landscape {
	position: absolute;
	bottom: 0px;
	left: 0;
	width: 100%;
	height: 100%;	
	background-image: url('');
	background-size: 1000px 250px;
	background-repeat: repeat-x;
	background-position: center bottom;
}
.content{
	width: 90%;
	max-width: 500px;
	min-height: 400px;
	-moz-user-select: none;
-webkit-user-select: none;
-ms-user-select: none;
-khtml-user-select: none;
user-select: none;
	text-align: center;
	color: #fff;
    position: absolute;
    left: 50%;
    top: 45%;
	transform: translate(-50%,-50%);
	z-index:9999;
	padding: 20px;
	box-sizing: border-box;
}
.content .title{
	margin: 15px 0;
    font-size: 2.5em;
    letter-spacing: 4px;
    color: #FFF;
}
.content .hr{
	width: 50%;
	margin: 20px auto;
	border: none;
	border-top: 1px solid rgba(255, 255, 255, 1);
	height: 1px;
}
.content .discription{
    font-size: 20px;
    margin: 20px;
}
.cover-navigation {
	margin: 30px;
}

nav {
    display: inline-block;
    position: relative;
}
.navigation {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: 15px;
    margin: 0;
    list-style-type: none;
    padding: 0;
}
.navigation__item {
    display: inline-block;
    line-height: 1em;
    padding: 0;
    flex: 0 0 auto;
}
.navigation__item a {
    position: relative;
    color: #FFF;
    opacity: .8;
	transition: all .3s;
	padding: 12px 18px;
    border: 1px solid #fff;
    border-radius: 25px;
    font-size: 0.85em;
    font-weight: bold;
    letter-spacing: 1px;
    text-shadow: none;
	-webkit-font-smoothing: antialiased;
	text-decoration: none;
	display: inline-block;
	min-width: 100px;
	text-align: center;
	white-space: nowrap;
}
.navigation__item a:hover {
    color: #FFF;
    background: #FF7F00;
    border-color: #FF7F00;
    opacity: 1;
    transition: all .3s;
}
ol, ul {
	list-style: none;
	margin: 0;
    padding: 0;
    border: 0;
    font-size: 100%;
    font: inherit;
    vertical-align: baseline;
}
.icp{
	margin: 20px;
}
.icpnum{
	color: #fff;
	text-decoration: none;
}

/* 移动端适配 */
@media screen and (max-width: 768px) {
	.content {
		width: 95%;
		max-width: 400px;
		padding: 15px;
		top: 40%;
	}
	
	.content .title {
		font-size: 2em;
		letter-spacing: 2px;
		margin: 10px 0;
	}
	
	.navigation {
		gap: 10px;
		margin: 20px 0;
	}
	
	.navigation__item a {
		padding: 10px 15px;
		font-size: 0.8em;
		min-width: 80px;
	}
	
	.content .hr {
		width: 60%;
		margin: 15px auto;
	}
	
	.cover-navigation {
		margin: 20px 0;
	}
}

@media screen and (max-width: 480px) {
	.content {
		width: 98%;
		padding: 10px;
		top: 35%;
	}
	
	.content .title {
		font-size: 1.8em;
		letter-spacing: 1px;
	}
	
	.navigation {
		flex-direction: column;
		gap: 8px;
	}
	
	.navigation__item a {
		width: 100%;
		max-width: 200px;
		padding: 12px 20px;
		font-size: 0.85em;
	}
	
	.content .hr {
		width: 70%;
		margin: 12px auto;
	}
}