:root {
		--bg: #0F172A;
		--bg-deep: #020617;
		--accent: #22D3EE;
		--accent-purple: #A78BFA;
		--text: #F8FAFC;
		--text-muted: #94A3B8;
		--card-glass: rgba(15, 23, 42, 0.5);
		--content-width: 1440px;
	}

	.knowledge-section {
		position: relative;
		padding: 110px 0 130px;
		background: linear-gradient(180deg, #0A1225 0%, #020617 100%);
		overflow: hidden;
	}

	/* 极光紫光晕：右上角 */
	.knowledge-section::after {
		content: '';
		position: absolute;
		top: -200px;
		right: -150px;
		width: 500px;
		height: 500px;
		border-radius: 50%;
		background: radial-gradient(circle, rgba(167, 139, 250, 0.08) 0%, transparent 70%);
		pointer-events: none;
		z-index: 0;
		filter: blur(60px);
	}

	/* 左下角次光晕 */
	.knowledge-section::before {
		content: '';
		position: absolute;
		bottom: -150px;
		left: -100px;
		width: 400px;
		height: 400px;
		border-radius: 50%;
		background: radial-gradient(circle, rgba(34, 211, 238, 0.06) 0%, transparent 70%);
		pointer-events: none;
		z-index: 0;
		filter: blur(50px);
	}

	.knowledge-inner {
		position: relative;
		z-index: 2;
		max-width: var(--content-width);
		margin: 0 auto;
		padding: 0 40px;
	}

	/* 顶部 Tab 导航 */
	.tab-nav {
		display: flex;
		justify-content: center;
		gap: 12px;
		margin-bottom: 48px;
	}

	.tab-btn {
		background: rgba(15, 23, 42, 0.5);
		backdrop-filter: blur(8px);
		-webkit-backdrop-filter: blur(8px);
		border: 1px solid rgba(255, 255, 255, 0.08);
		color: var(--text-muted);
		font-size: 15px;
		font-weight: 500;
		padding: 14px 36px;
		border-radius: 12px;
		cursor: pointer;
		transition: all 0.3s ease;
		letter-spacing: 0.4px;
	}

	.tab-btn:hover {
		border-color: rgba(167, 139, 250, 0.4);
		color: var(--text);
		background: rgba(167, 139, 250, 0.08);
	}

	.tab-btn.active {
		border-color: var(--accent-purple);
		color: #fff;
		background: rgba(167, 139, 250, 0.12);
		box-shadow: 0 0 20px rgba(167, 139, 250, 0.1);
	}

	/* 内容区 */
	.tab-content {
		position: relative;
		min-height: 400px;
	}

	.tab-panel {
		position: absolute;
		top: 0;
		left: 0;
		width: 100%;
		opacity: 0;
		transform: translateY(12px);
		transition: opacity 0.4s ease, transform 0.4s ease;
		pointer-events: none;
	}

	.tab-panel.active {
		opacity: 1;
		transform: translateY(0);
		pointer-events: auto;
		position: relative;
	}

	/* FAQ 折叠面板 */
	.faq-item {
		border-bottom: 1px solid rgba(255, 255, 255, 0.05);
		margin-bottom: 4px;
	}

	.faq-question {
		width: 100%;
		background: transparent !important;
		border: none;
		color: #F8FAFC;
		font-size: 16px;
		font-weight: 600;
		padding: 20px 0;
		text-align: left;
		cursor: pointer;
		display: flex;
		justify-content: space-between;
		align-items: center;
		letter-spacing: 0.3px;
		transition: color 0.2s;
	}

	.faq-question:hover {
		color: var(--accent-purple);
	}

	.faq-icon {
		font-size: 20px;
		color: var(--accent-purple);
		transition: transform 0.3s ease;
		flex-shrink: 0;
		margin-left: 16px;
	}

	.faq-item.open .faq-icon {
		transform: rotate(45deg);
	}

	.faq-answer {
		max-height: 0;
		overflow: hidden;
		transition: max-height 0.4s ease, padding 0.4s ease;
		padding: 0 0;
		color: var(--text-muted);
		font-size: 14px;
		line-height: 1.7;
	}

	.faq-item.open .faq-answer {
		max-height: 200px;
		padding: 0 0 20px 0;
	}

	/* 文章列表 */
	.blog-list {
		display: grid;
		grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
		gap: 20px;
	}

	.blog-card {
		display: flex;
		gap: 20px;
		background: rgba(15, 23, 42, 0.5);
		backdrop-filter: blur(8px);
		-webkit-backdrop-filter: blur(8px);
		border: 1px solid rgba(255, 255, 255, 0.06);
		border-radius: 16px;
		padding: 24px;
		transition: border-color 0.3s, box-shadow 0.3s;
		cursor: pointer;
		text-decoration: none;
		align-items: center;
	}

	.blog-card:hover {
		border-color: rgba(167, 139, 250, 0.3);
		box-shadow: 0 12px 28px rgba(0, 0, 0, 0.4);
	}

	.blog-thumb {
		width: 100px;
		height: 70px;
		border-radius: 8px;
		background: linear-gradient(135deg, rgba(167, 139, 250, 0.15), rgba(34, 211, 238, 0.1));
		display: flex;
		align-items: center;
		justify-content: center;
		flex-shrink: 0;
		border: 1px solid rgba(255, 255, 255, 0.05);
	}

	.blog-thumb svg {
		width: 32px;
		height: 32px;
		color: var(--accent-purple);
		opacity: 0.6;
	}

	.blog-info h4 {
		font-size: 16px;
		font-weight: 600;
		color: var(--text);
		margin-bottom: 6px;
		line-height: 1.4;
	}

	.blog-info .meta {
		font-size: 12px;
		color: var(--text-muted);
		display: flex;
		align-items: center;
		gap: 10px;
	}

	.meta-dot {
		width: 3px;
		height: 3px;
		border-radius: 50%;
		background: var(--accent-purple);
	}

	/* 底部引导链接 */
	.more-link {
		display: inline-flex;
		align-items: center;
		gap: 6px;
		margin-top: 24px;
		font-size: 14px;
		font-weight: 500;
		color: var(--accent-purple);
		text-decoration: none;
		transition: gap 0.2s;
	}

	.more-link:hover {
		gap: 12px;
	}

	@media (max-width: 768px) {
		.blog-list {
			grid-template-columns: 1fr;
		}

		.blog-card {
			flex-direction: column;
			align-items: flex-start;
		}

		.tab-btn {
			padding: 12px 24px;
		}
	}