* {
	box-sizing: border-box;
}

body {
	margin: 0;
	min-height: 100vh;
	font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
	background: linear-gradient(160deg, #0f172a 0%, #1e293b 45%, #0c4a6e 100%);
	color: #e2e8f0;
	overflow-x: hidden;
	overflow-y: auto;
}

.page {
	max-width: 960px;
	margin: 0 auto;
	padding: 48px 24px 120px;
}

.hero {
	text-align: center;
	margin-bottom: 48px;
	animation: fadeIn 0.8s ease forwards;
}

.badge {
	display: inline-block;
	margin: 0 0 16px;
	padding: 4px 12px;
	border-radius: 999px;
	font-size: 12px;
	letter-spacing: 0.05em;
	color: #7dd3fc;
	background: rgba(14, 165, 233, 0.15);
	border: 1px solid rgba(125, 211, 252, 0.3);
}

.title {
	margin: 0 0 12px;
	font-size: 2.5rem;
	font-weight: 700;
	letter-spacing: 0.08em;
	color: #f0f9ff;
}

.subtitle {
	margin: 0 0 16px;
	font-size: 1.05rem;
	line-height: 1.7;
	color: #bae6fd;
}

.subtitle strong {
	color: #e0f2fe;
}

.desc {
	margin: 0 auto;
	max-width: 640px;
	font-size: 0.95rem;
	line-height: 1.8;
	color: #94a3b8;
}

.section {
	margin-bottom: 40px;
	animation: fadeIn 0.8s ease forwards;
}

.section-title {
	margin: 0 0 20px;
	padding-bottom: 10px;
	font-size: 1.1rem;
	font-weight: 600;
	color: #7dd3fc;
	border-bottom: 1px solid rgba(125, 211, 252, 0.2);
}

.feature-grid {
	display: grid;
	grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
	grid-gap: 16px;
	margin: 0;
	padding: 0;
	list-style: none;
}

.feature-card {
	padding: 18px 20px;
	border-radius: 12px;
	background: rgba(15, 23, 42, 0.6);
	border: 1px solid rgba(148, 163, 184, 0.15);
	transition: border-color 0.2s, transform 0.2s;
}

.feature-card:hover {
	border-color: rgba(125, 211, 252, 0.4);
	transform: translateY(-2px);
}

.feature-card h3 {
	margin: 0 0 8px;
	font-size: 0.95rem;
	color: #e0f2fe;
}

.feature-card p {
	margin: 0;
	font-size: 0.85rem;
	line-height: 1.65;
	color: #94a3b8;
}

.arch-grid {
	display: grid;
	grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
	grid-gap: 16px;
}

.arch-card {
	padding: 18px 20px;
	border-radius: 12px;
	background: rgba(12, 74, 110, 0.25);
	border: 1px solid rgba(56, 189, 248, 0.2);
}

.arch-tag {
	display: inline-block;
	margin-bottom: 8px;
	padding: 2px 8px;
	border-radius: 4px;
	font-size: 11px;
	color: #38bdf8;
	background: rgba(56, 189, 248, 0.12);
}

.arch-card h3 {
	margin: 0 0 8px;
	font-size: 0.95rem;
	color: #f0f9ff;
}

.arch-card p {
	margin: 0;
	font-size: 0.85rem;
	line-height: 1.65;
	color: #94a3b8;
}

.module-list {
	margin: 0;
	padding: 14px 18px;
	border-radius: 8px;
	font-size: 0.85rem;
	line-height: 1.8;
	color: #7dd3fc;
	background: rgba(15, 23, 42, 0.5);
	border: 1px dashed rgba(125, 211, 252, 0.25);
	word-break: break-all;
}

.links {
	text-align: center;
}

.link-row {
	display: flex;
	flex-wrap: wrap;
	justify-content: center;
}

.link-btn {
	display: inline-block;
	padding: 10px 24px;
	border-radius: 8px;
	font-size: 0.9rem;
	color: #0c4a6e;
	text-decoration: none;
	background: #7dd3fc;
	transition: background 0.2s, transform 0.2s;
}

.link-btn:hover {
	background: #bae6fd;
	transform: translateY(-1px);
}

.footer-bar {
	position: fixed;
	bottom: 0;
	left: 0;
	right: 0;
	display: flex;
	flex-direction: column;
	align-items: center;
	padding: 12px 16px 16px;
	text-align: center;
	font-size: 0.8rem;
	line-height: 1.6;
	color: #64748b;
	background: rgba(15, 23, 42, 0.92);
	border-top: 1px solid rgba(148, 163, 184, 0.12);
	backdrop-filter: blur(8px);
}

.footer-note {
	margin-top: 4px;
	font-size: 0.75rem;
	color: #475569;
}

@keyframes fadeIn {
	from {
		opacity: 0;
		transform: translateY(12px);
	}
	to {
		opacity: 1;
		transform: translateY(0);
	}
}

@media (max-width: 600px) {
	.page {
		padding-top: 32px;
	}

	.title {
		font-size: 2rem;
	}
}