/* 骨架屏动画 */
.spa-skeleton {
	transition: opacity 0.3s ease;
}

.skeleton-line,
.skeleton-circle,
.skeleton-title,
.skeleton-card {
	background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
	background-size: 200% 100%;
	animation: skeleton-loading 1.5s ease-in-out infinite;
	border-radius: 4px;
}

.skeleton-line {
	height: 16px;
	margin: 8px 0;
	display: inline-block;
}

.skeleton-circle {
	border-radius: 50%;
}

.skeleton-title {
	height: 28px;
	margin-bottom: 20px;
}

.skeleton-card {
	height: 200px;
	margin: 10px;
	border-radius: 8px;
}

.skeleton-topbar {
	display: flex;
	justify-content: space-between;
	padding: 12px 20px;
	border-bottom: 1px solid #f0f0f0;
}

.skeleton-nav span {
	margin-right: 20px;
}

.skeleton-logo {
	display: flex;
	align-items: center;
	padding: 20px;
}

.skeleton-text {
	margin-left: 15px;
}

.skeleton-content {
	padding: 20px;
}

.skeleton-grid {
	display: grid;
	grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
	gap: 20px;
	margin-top: 20px;
}

@keyframes skeleton-loading {
	0% { background-position: 200% 0; }
	100% { background-position: -200% 0; }
}

/* 容器样式 */
.spa-container {
	min-height: 500px;
	position: relative;
}

/* 活跃导航链接 */
a.active {
	color: #e4393c;
	font-weight: bold;
}

/* 错误提示 */
.spa-error {
	padding: 40px 20px;
	text-align: center;
	color: #666;
}

.spa-error h3 {
	color: #e4393c;
	margin-bottom: 15px;
}