/* fount Agent 研究院静态页样式：只使用主题变量（--color-* / --radius-* / --border），不硬编码颜色、圆角与 px 边框宽度。 */

.blog-shell {
	min-height: 100vh;
	display: flex;
	flex-direction: column;
}

.blog-header {
	position: sticky;
	top: 0;
	z-index: 30;
	backdrop-filter: blur(0.5rem);
	background: color-mix(in oklab, var(--color-base-200) 82%, transparent);
	border-bottom: var(--border) solid color-mix(in oklab, var(--color-base-content) 10%, transparent);
}

.blog-title-link {
	font-weight: 700;
	letter-spacing: 0.02em;
}

.blog-title-link:hover {
	color: var(--color-primary);
}

/* --- 文章列表卡片 --- */

.blog-card {
	transition: transform 0.2s, box-shadow 0.2s;
}

.blog-card:hover {
	transform: translateY(-2px);
}

.blog-lang-badge {
	text-decoration: none;
}

.blog-lang-badge:hover {
	border-color: var(--color-primary);
	color: var(--color-primary);
}

.blog-tag-badge {
	cursor: pointer;
}

.blog-tag-badge:hover {
	outline: var(--border) solid currentColor;
}

/* --- 文章正文排版（fount 全量 markdown：KaTeX / Mermaid / Shiki / HTML） --- */

.blog-article {
	line-height: 1.75;
	font-size: 1.02rem;
	overflow-wrap: break-word;
}

.blog-article h1 {
	font-size: 2.1rem;
	font-weight: 700;
	line-height: 1.3;
	margin: 1.25rem 0 1rem;
}

.blog-article h2 {
	font-size: 1.5rem;
	font-weight: 700;
	line-height: 1.35;
	margin: 2.1rem 0 0.85rem;
	padding-bottom: 0.3rem;
	border-bottom: var(--border) solid color-mix(in oklab, var(--color-base-content) 12%, transparent);
}

.blog-article h3 {
	font-size: 1.2rem;
	font-weight: 700;
	margin: 1.6rem 0 0.6rem;
}

.blog-article h4,
.blog-article h5,
.blog-article h6 {
	font-size: 1.05rem;
	font-weight: 700;
	margin: 1.3rem 0 0.5rem;
}

.blog-article p {
	margin: 0.85rem 0;
}

.blog-article ul,
.blog-article ol {
	margin: 0.85rem 0;
	padding-inline-start: 1.6rem;
	list-style: revert;
}

.blog-article li {
	margin: 0.3rem 0;
}

.blog-article li>p {
	margin: 0.3rem 0;
}

.blog-article blockquote {
	margin: 1.1rem 0;
	padding: 0.55rem 1rem;
	border-inline-start: 0.3rem solid var(--color-primary);
	border-radius: var(--radius-field);
	background: color-mix(in oklab, var(--color-primary) 8%, transparent);
	color: color-mix(in oklab, var(--color-base-content) 85%, transparent);
}

.blog-article blockquote p {
	margin: 0.35rem 0;
}

.blog-article a {
	color: var(--color-primary);
	text-decoration: underline;
	text-underline-offset: 0.2em;
}

.blog-article a:hover {
	color: var(--color-secondary);
}

.blog-article img {
	max-width: 100%;
	height: auto;
}

.blog-article hr {
	margin: 2rem 0;
	border: none;
	border-top: var(--border) solid color-mix(in oklab, var(--color-base-content) 18%, transparent);
}

.blog-article table {
	width: 100%;
	margin: 1.1rem 0;
	border-collapse: collapse;
	font-size: 0.95rem;
	display: block;
	overflow-x: auto;
}

.blog-article th,
.blog-article td {
	padding: 0.5rem 0.75rem;
	border: var(--border) solid color-mix(in oklab, var(--color-base-content) 15%, transparent);
	text-align: start;
}

.blog-article th {
	background: color-mix(in oklab, var(--color-base-content) 6%, transparent);
	font-weight: 700;
}

.blog-article :not(pre) > code {
	padding: 0.15em 0.4em;
	border-radius: var(--radius-field);
	background: color-mix(in oklab, var(--color-base-content) 8%, transparent);
	font-weight: 600;
}

.blog-article pre {
	margin: 1.1rem 0;
	padding: 1rem 1.25rem;
	overflow-x: auto;
	border-radius: var(--radius-box);
	border: var(--border) solid color-mix(in oklab, var(--color-base-content) 10%, transparent);
	background: var(--color-base-200);
}

.blog-article pre code {
	background: transparent;
	padding: 0;
	font-weight: inherit;
}

/* Shiki 代码块外层（fount markdown 管线产物） */
.blog-article figure[data-rehype-pretty-code-figure] {
	margin: 1.1rem 0;
}

.blog-article figure[data-rehype-pretty-code-figure] pre {
	margin: 0;
}

.blog-article .katex-display {
	overflow-x: auto;
	overflow-y: hidden;
	padding: 0.35rem 0;
}

.blog-article svg {
	max-width: 100%;
	height: auto;
}

/* mermaid 图面板：节点填充为主题 base-200，需要与衬底保持可感知色距（两种主题下都不隐身）。
   根元素 fill 用主题色压过 mermaid 内联的 `#id { fill:#333 }`，避免暗色主题下与衬底同色。 */
.blog-article svg[id^='mermaid-'] {
	display: block;
	margin: 1.1rem auto;
	padding: 1rem;
	box-sizing: content-box;
	fill: var(--color-base-content) !important;
	background: color-mix(in oklab, var(--color-base-200) 88%, var(--color-base-content));
	border-radius: var(--radius-box);
	border: var(--border) solid color-mix(in oklab, var(--color-base-content) 10%, transparent);
}

.blog-article kbd {
	padding: 0.1em 0.45em;
	border-radius: var(--radius-field);
	border: var(--border) solid color-mix(in oklab, var(--color-base-content) 25%, transparent);
	border-bottom-width: calc(var(--border) * 2);
	background: var(--color-base-200);
	font-size: 0.85em;
}

/* --- 文章页双栏布局 + wiki 侧边栏（目录 / 全部文章） --- */

html {
	scroll-behavior: smooth;
}

.blog-article h1,
.blog-article h2,
.blog-article h3,
.blog-article h4,
.blog-article h5,
.blog-article h6 {
	scroll-margin-top: 5rem;
}

.blog-article-layout {
	display: grid;
	gap: 1.5rem;
	align-items: start;
	grid-template-columns: minmax(0, 1fr);
}

@media (min-width: 64rem) {
	.blog-article-layout {
		grid-template-columns: 15rem minmax(0, 1fr);
	}
}

.blog-toc {
	display: none;
	position: sticky;
	top: 4.75rem;
	max-height: calc(100vh - 6rem);
	overflow-y: auto;
	align-self: start;
	padding: 0.85rem;
	border-radius: var(--radius-box);
	border: var(--border) solid color-mix(in oklab, var(--color-base-content) 10%, transparent);
	background: color-mix(in oklab, var(--color-base-100) 65%, transparent);
}

@media (min-width: 64rem) {
	.blog-toc:not([hidden]) {
		display: block;
	}
}

.blog-toc-section {
	display: flex;
	flex-direction: column;
	gap: 0.4rem;
}

.blog-toc-section + .blog-toc-section {
	margin-top: 1.25rem;
	padding-top: 1rem;
	border-top: var(--border) solid color-mix(in oklab, var(--color-base-content) 10%, transparent);
}

.blog-toc-title {
	font-size: 0.75rem;
	font-weight: 700;
	text-transform: uppercase;
	letter-spacing: 0.07em;
	opacity: 0.65;
	margin: 0;
}

.blog-toc-list {
	display: flex;
	flex-direction: column;
	gap: 0.1rem;
	margin: 0;
	padding: 0;
	list-style: none;
}

.blog-toc-link {
	display: block;
	padding: 0.3rem 0.55rem;
	border-radius: var(--radius-field);
	font-size: 0.88rem;
	line-height: 1.35;
	color: color-mix(in oklab, var(--color-base-content) 80%, transparent);
	text-decoration: none;
	overflow: hidden;
	text-overflow: ellipsis;
	white-space: nowrap;
}

.blog-toc-link:hover {
	color: var(--color-base-content);
	background: color-mix(in oklab, var(--color-base-content) 8%, transparent);
}

.blog-toc-link.blog-toc-h3 {
	padding-inline-start: 1.15rem;
	font-size: 0.82rem;
}

.blog-toc-link.blog-toc-active {
	color: var(--color-primary);
	background: color-mix(in oklab, var(--color-primary) 10%, transparent);
	font-weight: 700;
}

.blog-nav-category {
	font-size: 0.78rem;
	font-weight: 700;
	opacity: 0.6;
	padding: 0.45rem 0.55rem 0.15rem;
}

.blog-nav-link {
	display: block;
	padding: 0.3rem 0.55rem;
	border-radius: var(--radius-field);
	font-size: 0.86rem;
	line-height: 1.35;
	color: color-mix(in oklab, var(--color-base-content) 80%, transparent);
	text-decoration: none;
	overflow: hidden;
	text-overflow: ellipsis;
	white-space: nowrap;
}

.blog-nav-link:hover {
	color: var(--color-base-content);
	background: color-mix(in oklab, var(--color-base-content) 8%, transparent);
}

.blog-nav-link.blog-nav-active {
	color: var(--color-primary);
	background: color-mix(in oklab, var(--color-primary) 10%, transparent);
	font-weight: 700;
}

/* --- 文章页脚导航（上一篇 / 下一篇） --- */

.blog-pager {
	display: grid;
	grid-template-columns: 1fr auto 1fr;
	gap: 0.75rem;
	align-items: stretch;
}

.blog-pager-link {
	display: flex;
	flex-direction: column;
	justify-content: center;
	gap: 0.15rem;
	padding: 0.75rem 1rem;
	border-radius: var(--radius-box);
	border: var(--border) solid color-mix(in oklab, var(--color-base-content) 10%, transparent);
	background: color-mix(in oklab, var(--color-base-100) 65%, transparent);
	text-decoration: none;
	min-width: 0;
}

.blog-pager-link:hover {
	border-color: var(--color-primary);
}

.blog-pager-link.blog-pager-next {
	grid-column: 3;
	text-align: end;
}

.blog-pager-direction {
	font-size: 0.78rem;
	opacity: 0.65;
}

.blog-pager-title {
	font-weight: 700;
	overflow: hidden;
	text-overflow: ellipsis;
	white-space: nowrap;
	color: var(--color-base-content);
}

/* --- 页脚（fount 广告位） --- */

.blog-footer {
	margin-top: auto;
	border-top: var(--border) solid color-mix(in oklab, var(--color-base-content) 10%, transparent);
	background: color-mix(in oklab, var(--color-base-100) 45%, transparent);
}