/* 通用盒子模型 */
*,
*::before,
*::after {
  box-sizing: border-box;
}
 
/* 移除默认的margin和padding */
body,
h1, h2, h3, h4, h5, h6,
p, blockquote, pre,
dl, dd, ol, ul,
form, fieldset, legend,
figure,
table, th, td, caption,
hr {
  margin: 0;
  padding: 0;
}
 
/* 设置字体和排版 */
body {
  font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
  font-size: 16px; /* 或者使用 rem 或 em 单位 */
  line-height: 1.5;
  color: #333; /* 深色字体，易于阅读 */
  background-color: #222222;
}
 
/* 设置链接样式 */
a {
  color: #007bff; /* 蓝色链接 */
  text-decoration: none; /* 移除下划线 */
}
 
a:hover {
  text-decoration: underline; /* 鼠标悬停时显示下划线 */
}
img{
	vertical-align: bottom;
	width: 100%;
}
.body{
	position: relative;
	max-width: 500Px;
	margin: 0 auto;
	height: 100%;
	background-color: var(--content-bg-color);
	will-change: opacity;
	-webkit-transition: opacity .1s ease-in;
	transition: opacity .1s ease-in;
}

header{
	position: sticky;
	top: 0;
	left: 0;
	z-index: 100;
	background-color: #1a1a1a;
	display: flex;
	justify-content: space-between;
	align-items: center;
}
header .top, section .bg1, footer{
	position: relative;
}
header a:first-child{
	position: absolute;
	top: 0;
	left: 0;
	width: 43%;
	height: 100%;
}
header a:last-child{
	position: absolute;
	top: 0;
	right: 0;
	width: 43%;
	height: 100%;
}
section{
	align-items: center;
	text-align: center;
	color: white;
	position: relative;
}
section .top-link{
	position: absolute;
	top: 0.51%;
	left: 50%;
	transform: translateX(-50%);
	z-index: 99;
}
section .bg1 a{
	position: absolute;
	bottom: 0;
	left: 0;
	right: 0;
	height: 13%;
}
section .bg1 .text{
	position: absolute;
	bottom: 16.6%;
	left: 50%;
	transform: translateX(-50%);
	background-color: #333333;
	width: 55%;
	font-weight: 200;
	border-top-right-radius: 18px;
	border-top-left-radius: 18px;
	padding: 2px;
	color: #f1eaea;
}
footer{
	position: sticky;
	bottom: 0;
	left: 0;
	right: 0;
	z-index: 100;
}