* {
	margin: 0;
	padding: 0;
	box-sizing: border-box;
	font-family: 'Arial', sans-serif;
}
body {
	background-color: #f5f7fa;
	color: #333;
	line-height: 1.6;
}
.container {
	max-width: 1200px;
	margin: 0 auto;
	padding: 0 20px;
}

/* 头部样式 */
header {
	background-color: #2c3e50;
	color: white;
	padding: 20px 0;
	box-shadow: 0 2px 10px rgba(0,0,0,0.1);
	transition: all 0.3s;
}
.header-content {
	display: flex;
	justify-content: space-between;
	align-items: center;
}
.logo {
	font-size: 30px;
	font-weight: bold;
}
.logo img{ float: left; width: 40px; height: 40px; margin-bottom: -5px; margin-right: 10px;}
.logo span {
	color: #3498db;
}
nav ul {
	display: flex;
	list-style: none;
}
nav ul li {
	margin-left: 30px;
}
nav ul li a {
	color: white;
	text-decoration: none;
	font-size: 16px;
	transition: color 0.3s;
	position: relative;
}
nav ul li a:hover {
	color: #3498db;
}
nav ul li a.active::after {
	content: '';
	position: absolute;
	bottom: -5px;
	left: 0;
	width: 100%;
	height: 3px;
	background-color: #3498db;
	border-radius: 2px;
}


/* 页脚 */
footer {
	background-color: #2c3e50;
	color: white;
	padding: 40px 0 20px;
}
.footer-content {
	display: flex;
	flex-wrap: wrap;
	justify-content: space-between;
	gap: 30px;
	margin-bottom: 30px;
}
.footer-col {
	flex: 1;
	min-width: 200px;
}
.footer-col h3 {
	margin-bottom: 20px;
	font-size: 18px;
	color: #3498db;
}
.footer-col ul {
	list-style: none;
}
.footer-col ul li {
	margin-bottom: 10px;
}
.footer-col ul li a {
	color: #bdc3c7;
	text-decoration: none;
	transition: color 0.3s;
}
.footer-col ul li a:hover {
	color: white;
}
.copyright {
	text-align: center;
	padding-top: 20px;
	border-top: 1px solid #34495e;
	color: #bdc3c7;
	font-size: 14px;
}