:root {
	--bg: #f6f2ea;
	--paper: #fffdf8;
	--ink: #202421;
	--muted: #5f665f;
	--line: #d9d1c4;
	--accent: #0f6f63;
	--accent-strong: #0a5148;
	--warn-bg: #fff4d6;
	--warn-line: #e8c463;
}

* {
	box-sizing: border-box;
}

body {
	margin: 0;
	background: linear-gradient(180deg, #eef5ef 0, var(--bg) 320px);
	color: var(--ink);
	font-family: "Microsoft YaHei", "Noto Sans SC", sans-serif;
	line-height: 1.75;
}

a {
	color: var(--accent-strong);
}

.site-header {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 20px;
	max-width: 1080px;
	margin: 0 auto;
	padding: 20px;
	border-bottom: 1px solid var(--line);
}

.brand {
	color: var(--ink);
	font-size: 18px;
	font-weight: 700;
	text-decoration: none;
}

nav {
	display: flex;
	flex-wrap: wrap;
	gap: 12px;
}

nav a {
	border: 1px solid var(--line);
	border-radius: 6px;
	padding: 6px 12px;
	background: rgba(255, 253, 248, 0.7);
	text-decoration: none;
}

nav a[aria-current="page"] {
	background: var(--accent);
	border-color: var(--accent);
	color: white;
}

.home,
.article {
	max-width: 980px;
	margin: 0 auto;
	padding: 48px 20px 72px;
}

.intro h1,
.article h1 {
	margin: 0 0 16px;
	font-size: clamp(32px, 5vw, 56px);
	line-height: 1.12;
}

.eyebrow {
	margin: 0 0 10px;
	color: var(--accent-strong);
	font-size: 14px;
	font-weight: 700;
	letter-spacing: 0;
}

.page-list {
	display: grid;
	grid-template-columns: repeat(2, minmax(0, 1fr));
	gap: 16px;
	margin-top: 32px;
}

.page-card {
	display: block;
	min-height: 180px;
	border: 1px solid var(--line);
	border-radius: 8px;
	padding: 22px;
	background: var(--paper);
	color: var(--ink);
	text-decoration: none;
}

.page-card span,
.page-card small {
	display: block;
	color: var(--muted);
}

.page-card strong {
	display: block;
	margin: 12px 0;
	font-size: 24px;
	line-height: 1.25;
}

.notice {
	border-left: 4px solid var(--warn-line);
	padding: 12px 14px;
	background: var(--warn-bg);
	color: #4a3d16;
}

.inline-link {
	font-weight: 700;
}

.article {
	max-width: 860px;
	background: rgba(255, 253, 248, 0.72);
}

.article h2 {
	margin-top: 36px;
	padding-top: 18px;
	border-top: 1px solid var(--line);
	font-size: 28px;
	line-height: 1.25;
}

.article h3 {
	margin-top: 24px;
	font-size: 20px;
}

.article img[src^="file:"] {
	display: none;
}

code {
	border: 1px solid var(--line);
	border-radius: 4px;
	padding: 1px 5px;
	background: #f3eee4;
}

@media (max-width: 720px) {
	.site-header {
		align-items: flex-start;
		flex-direction: column;
	}

	.page-list {
		grid-template-columns: 1fr;
	}

	.home,
	.article {
		padding-top: 32px;
	}
}