/* 浮动导航层 */
.floating-nav {
	position: relative;
	top: 0;
	width: 100%;
	height: 90px;
	background: #fff;
	box-shadow: 0 2px 10px rgba(0,0,0,0.1);
	display: flex;
	z-index: 999;
	gap: 20px;
	justify-content: center;
	align-items: center;
	transition: top 0.3s ease-in-out, box-shadow 0.3s ease-in-out; 
}

.floating-nav.fixed {
	position: fixed;
	top: 0;
	left: 0;
	box-shadow: 0 4px 15px rgba(0,0,0,0.2); 
	z-index: 999; 
}

.nav-link {
	padding: 10px 18px;
	border-radius: 20px;
	background: #f0f0f0;
	color: #333;
	font-size:16px;
	text-decoration: none;
	transition: all 0.3s;
}

.nav-link.active {
	background: #337ab7;
	color: white;
}

/* 增强激活状态样式 */
.nav-link.active {
	background: #1976D2 !important;
	transform: scale(1.05);
	box-shadow: 0 3px 6px rgba(0,0,0,0.16);
}

.nav-link {
	transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}