body {
	background-color: #E8F4FF;
	font-family: 'PingFang SC', 'Microsoft YaHei', sans-serif;
	/* 核心新增：禁用文本选择 */
	user-select: none;
	-webkit-user-select: none;
	-moz-user-select: none;
	-ms-user-select: none;
}
.tag-cloud a {
	display: inline-block;
	margin: 4px;
	padding: 4px 12px;
	border-radius: 15px;
	text-decoration: none;
	transition: all 0.3s ease;
}
.tag-cloud a:hover {
	transform: translateY(-2px);
	box-shadow: 0 4px 8px rgba(0,0,0,0.1);
}
.feature-card {
	transition: all 0.3s ease;
}
.feature-card:hover {
	transform: translateY(-5px);
	box-shadow: 0 10px 20px rgba(0,0,0,0.1);
}
.download-btn {
	transition: all 0.2s ease;
}
.download-btn:hover {
	transform: scale(1.05);
	box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}