:root {
    color-scheme: light;
    --bg: #f4f3ee;
    --bg-raised: #fbfaf7;
    --bg-muted: #ebeae4;
    --text: #15202b;
    --text-soft: #5e6972;
    --text-faint: #8b949b;
    --line: #d9dcd5;
    --line-strong: #c7ccc3;
    --accent: #007f78;
    --accent-bright: #00a59a;
    --accent-soft: #d9f0eb;
    --amber: #b66a18;
    --violet: #6e5cc7;
    --code: #111a21;
    --code-text: #edf3f1;
    --shadow: 0 18px 50px rgba(28, 42, 42, .08);
    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 24px;
    --max: 1180px;
    --narrow: 780px;
    --ease: 180ms ease;
}

:root[data-theme="dark"] {
    color-scheme: dark;
    --bg: #0b1118;
    --bg-raised: #111a22;
    --bg-muted: #15212a;
    --text: #e9f0ee;
    --text-soft: #a8b6b8;
    --text-faint: #718186;
    --line: #26353b;
    --line-strong: #3a4b51;
    --accent: #42d4c6;
    --accent-bright: #65ebda;
    --accent-soft: #143b3b;
    --amber: #f2aa4c;
    --violet: #ae9cff;
    --code: #071017;
    --code-text: #e9f5f1;
    --shadow: 0 18px 50px rgba(0, 0, 0, .22);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    background: var(--bg);
    color: var(--text);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
    font-size: 16px;
    line-height: 1.7;
    text-rendering: optimizeLegibility;
}
body, button, input { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
a { color: inherit; text-decoration: none; }
button { border: 0; cursor: pointer; }
::selection { background: var(--accent-soft); color: var(--text); }

.container { width: min(var(--max), calc(100% - 48px)); margin: 0 auto; }
.container--narrow { width: min(var(--narrow), calc(100% - 48px)); }
.visually-hidden { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }
.skip-link { position: fixed; left: 16px; top: -60px; z-index: 100; padding: 10px 14px; background: var(--text); color: var(--bg); border-radius: var(--radius-sm); transition: top var(--ease); }
.skip-link:focus { top: 16px; }
.eyebrow { margin: 0 0 12px; color: var(--accent); font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: 11px; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; }

.site-header { position: sticky; top: 0; z-index: 20; border-bottom: 1px solid color-mix(in srgb, var(--line) 70%, transparent); background: color-mix(in srgb, var(--bg) 88%, transparent); backdrop-filter: blur(18px); }
.site-header__inner { width: min(var(--max), calc(100% - 48px)); min-height: 76px; margin: 0 auto; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: inline-flex; align-items: center; gap: 12px; min-width: max-content; }
.brand__mark { display: grid; place-items: center; width: 38px; height: 38px; border: 1px solid var(--accent); border-radius: 11px; color: var(--accent); font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 13px; font-weight: 800; letter-spacing: -.08em; }
.brand__copy { display: grid; gap: 1px; line-height: 1.2; }
.brand__copy strong { font-size: 14px; letter-spacing: .02em; }
.brand__copy small { color: var(--text-faint); font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 9px; letter-spacing: .05em; }
.site-nav { display: flex; align-items: center; gap: 24px; }
.site-nav > a { color: var(--text-soft); font-size: 14px; transition: color var(--ease); }
.site-nav > a:hover, .site-nav > a:focus-visible { color: var(--accent); }
.nav-search, .theme-toggle, .nav-toggle { display: inline-flex; align-items: center; justify-content: center; color: var(--text-soft); background: transparent; }
.nav-search { gap: 8px; padding: 8px 11px; border: 1px solid var(--line); border-radius: var(--radius-sm); font-size: 13px; transition: border-color var(--ease), color var(--ease), background var(--ease); }
.nav-search:hover, .nav-search:focus-visible { border-color: var(--accent); color: var(--accent); background: var(--bg-raised); }
kbd { padding: 2px 5px; border: 1px solid var(--line-strong); border-radius: 4px; color: var(--text-faint); font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 10px; line-height: 1.2; }
.theme-toggle { width: 34px; height: 34px; border-radius: 50%; font-size: 19px; transition: color var(--ease), background var(--ease); }
.theme-toggle:hover, .theme-toggle:focus-visible { color: var(--accent); background: var(--bg-muted); }
.nav-toggle { display: none; padding: 8px; font-size: 20px; }

.home-hero { position: relative; overflow: hidden; border-bottom: 1px solid var(--line); background: radial-gradient(circle at 78% 24%, color-mix(in srgb, var(--accent) 12%, transparent), transparent 32%), var(--bg); }
.home-hero::after { position: absolute; right: -80px; bottom: -150px; width: 520px; height: 520px; border: 1px solid color-mix(in srgb, var(--accent) 22%, transparent); border-radius: 50%; content: ""; box-shadow: 0 0 0 36px color-mix(in srgb, var(--accent) 4%, transparent), 0 0 0 72px color-mix(in srgb, var(--accent) 3%, transparent); }
.home-hero__grid { min-height: 570px; padding: 94px 0 88px; display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(320px, .9fr); align-items: center; gap: 80px; }
.eyebrow__dot { display: inline-block; width: 7px; height: 7px; margin-right: 7px; border-radius: 50%; background: var(--accent-bright); box-shadow: 0 0 0 5px var(--accent-soft); }
.home-hero h1 { max-width: 700px; margin: 0; font-size: clamp(42px, 5.4vw, 76px); font-weight: 700; letter-spacing: -.065em; line-height: 1.06; }
.home-hero__lede { max-width: 550px; margin: 28px 0 0; color: var(--text-soft); font-size: 18px; }
.home-hero__actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 34px; }
.button { display: inline-flex; align-items: center; gap: 10px; min-height: 44px; padding: 10px 16px; border-radius: var(--radius-sm); font-size: 14px; font-weight: 700; transition: transform var(--ease), border-color var(--ease), background var(--ease); }
.button:hover, .button:focus-visible { transform: translateY(-2px); }
.button--primary { background: var(--accent); color: #06110f; }
.button--primary:hover, .button--primary:focus-visible { background: var(--accent-bright); }
.button--ghost { border: 1px solid var(--line-strong); color: var(--text-soft); }
.button--ghost:hover, .button--ghost:focus-visible { border-color: var(--accent); color: var(--accent); }
.home-hero__signal { position: relative; z-index: 1; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.signal-card { min-height: 112px; padding: 20px; border: 1px solid var(--line); border-radius: var(--radius-md); background: color-mix(in srgb, var(--bg-raised) 85%, transparent); box-shadow: var(--shadow); display: grid; grid-template-columns: auto 1fr; align-content: center; gap: 2px 14px; }
.signal-card--large { grid-column: 1 / -1; min-height: 156px; border-color: color-mix(in srgb, var(--accent) 50%, var(--line)); background: linear-gradient(135deg, color-mix(in srgb, var(--accent-soft) 68%, var(--bg-raised)), var(--bg-raised)); }
.signal-card span { grid-row: span 2; color: var(--accent); font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 12px; }
.signal-card strong { font-size: 18px; }
.signal-card small { color: var(--text-soft); font-size: 12px; }

.section-block { padding: 92px 0 0; }
.section-block--latest { padding-bottom: 96px; }
.section-heading { display: flex; align-items: end; justify-content: space-between; gap: 24px; margin-bottom: 28px; }
.section-heading__actions { display: flex; align-items: center; gap: 20px; }
.section-heading h2 { margin: 0; font-size: clamp(24px, 3vw, 34px); letter-spacing: -.04em; line-height: 1.15; }
.section-heading a, .section-heading__count { color: var(--text-faint); font-size: 13px; }
.section-heading a:hover { color: var(--accent); }
.topic-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.topic-card { min-height: 225px; padding: 24px; border: 1px solid var(--line); border-radius: var(--radius-md); background: var(--bg-raised); display: flex; flex-direction: column; transition: transform var(--ease), border-color var(--ease), box-shadow var(--ease); }
.topic-card:hover, .topic-card:focus-visible { transform: translateY(-4px); border-color: var(--topic-color, var(--accent)); box-shadow: var(--shadow); }
.topic-card__index { color: var(--topic-color, var(--accent)); font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 11px; }
.topic-card strong { margin-top: 30px; font-size: 23px; letter-spacing: -.03em; }
.topic-card p { flex: 1; margin: 8px 0 18px; color: var(--text-soft); font-size: 14px; line-height: 1.6; }
.topic-card > span:last-child { color: var(--text-faint); font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 11px; }
.topic-card--cyan { --topic-color: var(--accent); }
.topic-card--amber { --topic-color: var(--amber); }
.topic-card--violet { --topic-color: var(--violet); }
.topic-card--rose { --topic-color: #d05c7c; }
.post-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.post-card { min-width: 0; border: 1px solid var(--line); border-radius: var(--radius-md); background: var(--bg-raised); transition: transform var(--ease), border-color var(--ease), box-shadow var(--ease); }
.post-card:hover, .post-card:focus-within { transform: translateY(-3px); border-color: var(--accent); box-shadow: var(--shadow); }
.post-card__link { min-height: 250px; padding: 21px; display: flex; flex-direction: column; }
.post-card__meta { display: flex; align-items: center; justify-content: space-between; gap: 12px; color: var(--text-faint); font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 10px; letter-spacing: .03em; }
.post-card__meta span { color: var(--accent); }
.post-card h3 { margin: 30px 0 9px; font-size: 20px; letter-spacing: -.03em; line-height: 1.25; }
.post-card p { flex: 1; margin: 0; color: var(--text-soft); font-size: 13px; line-height: 1.65; }
.post-card__footer { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-top: 20px; color: var(--text-faint); font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 10px; }
.post-card__more { color: var(--accent); font-family: inherit; font-size: 12px; font-weight: 700; }

.page-hero { padding: 90px 0 58px; border-bottom: 1px solid var(--line); background: radial-gradient(circle at 75% 15%, color-mix(in srgb, var(--accent) 10%, transparent), transparent 36%), var(--bg); }
.page-hero h1 { margin: 0; font-size: clamp(40px, 7vw, 66px); letter-spacing: -.06em; line-height: 1.05; }
.page-hero__description { max-width: 620px; margin: 18px 0 0; color: var(--text-soft); font-size: 18px; }
.page-hero__description a { color: var(--accent); text-decoration: underline; text-decoration-color: color-mix(in srgb, var(--accent) 35%, transparent); text-underline-offset: 3px; }
.page-content { padding: 70px 0 96px; }

.article-shell { padding-bottom: 90px; }
.article-header { padding-top: 74px; padding-bottom: 52px; }
.article-header__topline { display: flex; align-items: center; justify-content: space-between; gap: 20px; margin-bottom: 42px; color: var(--text-faint); font-size: 12px; }
.article-header__topline > a:hover { color: var(--accent); }
.tag-list { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 7px; }
.tag-list a { padding: 4px 8px; border: 1px solid var(--line); border-radius: 99px; color: var(--accent); font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 10px; }
.tag-list a:hover { border-color: var(--accent); background: var(--accent-soft); }
.article-header h1 { max-width: 820px; margin: 0; font-size: clamp(38px, 6vw, 68px); letter-spacing: -.065em; line-height: 1.08; }
.article-lede { max-width: 700px; margin: 20px 0 0; color: var(--text-soft); font-size: 20px; line-height: 1.55; }
.article-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 10px 18px; margin-top: 26px; color: var(--text-faint); font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 11px; }
.article-topics { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; margin-top: 18px; }
.article-topics > span { margin-right: 3px; color: var(--text-faint); font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 9px; letter-spacing: .08em; }
.article-topics a { padding: 5px 9px; border: 1px solid color-mix(in srgb, var(--accent) 45%, var(--line)); border-radius: 99px; background: color-mix(in srgb, var(--accent-soft) 42%, transparent); color: var(--accent); font-size: 11px; font-weight: 700; }
.article-topics a:hover, .article-topics a:focus-visible { border-color: var(--accent); background: var(--accent-soft); }
.status-pill { padding: 3px 8px; border-radius: 99px; font-family: inherit; font-size: 10px; }
.status-pill--pending { background: color-mix(in srgb, var(--amber) 16%, transparent); color: var(--amber); }
.status-pill--verified { background: color-mix(in srgb, var(--accent) 16%, transparent); color: var(--accent); }
.status-pill--published { background: color-mix(in srgb, var(--accent) 13%, transparent); color: var(--accent); }
.status-pill--draft { background: color-mix(in srgb, var(--violet) 14%, transparent); color: var(--violet); }
.status-pill--archived { background: var(--bg-muted); color: var(--text-faint); }
.reading-progress { position: fixed; top: 0; left: 0; z-index: 30; width: 0; height: 3px; background: var(--accent-bright); box-shadow: 0 0 12px color-mix(in srgb, var(--accent) 65%, transparent); transition: width 80ms linear; }
.article-layout { display: grid; grid-template-columns: 190px minmax(0, 760px); align-items: start; justify-content: center; gap: 55px; }
.article-cover { margin-top: -18px; margin-bottom: 58px; }
.article-cover img { display: block; width: 100%; max-height: 520px; object-fit: cover; border: 1px solid var(--line); border-radius: var(--radius-md); background: var(--bg-muted); box-shadow: var(--shadow); }
.article-cover figcaption { margin-top: 9px; color: var(--text-faint); font-size: 11px; text-align: center; }
.article-aside { position: sticky; top: 105px; max-height: calc(100vh - 130px); overflow: auto; padding-top: 9px; }
.article-aside__label { margin-bottom: 14px; color: var(--text-faint); font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 10px; letter-spacing: .1em; }
.article-toc { display: grid; gap: 8px; border-left: 1px solid var(--line); }
.article-toc a { padding-left: 12px; color: var(--text-faint); font-size: 12px; line-height: 1.4; }
.article-toc a:hover, .article-toc a.is-active { color: var(--accent); }
.article-toc a.toc-h3 { padding-left: 24px; font-size: 11px; }
.article-toc:empty::after { content: "这篇文章没有目录"; padding-left: 12px; color: var(--text-faint); font-size: 11px; }
.article-notice { display: flex; gap: 10px; margin: 0 0 38px; padding: 12px 15px; border: 1px solid color-mix(in srgb, var(--amber) 35%, var(--line)); border-radius: var(--radius-sm); background: color-mix(in srgb, var(--amber) 8%, var(--bg-raised)); color: var(--text-soft); font-size: 13px; }
.article-notice strong { color: var(--amber); white-space: nowrap; }
.article-notice--general { border-color: color-mix(in srgb, var(--accent) 32%, var(--line)); background: color-mix(in srgb, var(--accent) 7%, var(--bg-raised)); }
.article-notice--general strong { color: var(--accent); }
.article-feedback { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-top: 55px; padding-top: 18px; border-top: 1px solid var(--line); color: var(--text-faint); font-size: 12px; }
.article-feedback a { color: var(--accent); }
.article-series { margin-top: 72px; }
.article-series__heading { display: flex; align-items: end; justify-content: space-between; gap: 20px; margin-bottom: 14px; }
.article-series__heading .eyebrow { margin-bottom: 6px; }
.article-series__heading h2 { margin: 0; font-size: 26px; letter-spacing: -.04em; }
.article-series__heading > span { color: var(--text-faint); font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 11px; }
.article-series__list { margin: 0; padding: 0; border-top: 1px solid var(--line); list-style: none; }
.article-series__list li { border-bottom: 1px solid var(--line); }
.article-series__list a { display: grid; grid-template-columns: 42px 1fr auto; align-items: center; gap: 14px; min-height: 58px; padding: 9px 4px; }
.article-series__list a:hover strong { color: var(--accent); }
.article-series__list span, .article-series__list small { color: var(--text-faint); font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 10px; }
.article-series__list strong { font-size: 14px; transition: color var(--ease); }
.article-series__list .is-current { border-color: color-mix(in srgb, var(--accent) 45%, var(--line)); background: color-mix(in srgb, var(--accent-soft) 45%, transparent); }
.article-series__list .is-current span, .article-series__list .is-current small { color: var(--accent); }
.related-posts { padding-top: 78px; }
.post-grid--related .post-card__link { min-height: 230px; }
.text-relations { padding-top: 78px; }
.text-relations .section-heading > span { color: var(--text-faint); font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 10px; }
.text-relations__grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.text-relation-group { min-width: 0; padding: 20px; border: 1px solid var(--line); border-radius: var(--radius-md); background: var(--bg-raised); }
.text-relation-group__heading { display: flex; align-items: center; gap: 10px; margin-bottom: 13px; }
.text-relation-group__heading > span { display: grid; width: 28px; height: 28px; place-items: center; border-radius: 50%; background: var(--accent-soft); color: var(--accent); font-weight: 700; }
.text-relation-group__heading h3 { margin: 0; font-size: 18px; letter-spacing: -.03em; }
.text-relation-list { display: grid; }
.text-relation-list a { display: block; padding: 13px 2px; border-top: 1px solid var(--line); }
.text-relation-list a:hover strong { color: var(--accent); }
.text-relation-list small { display: block; color: var(--accent); font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 9px; }
.text-relation-list strong { display: block; margin-top: 4px; font-size: 14px; transition: color var(--ease); }
.text-relation-list p { margin: 5px 0 0; color: var(--text-faint); font-size: 11px; line-height: 1.55; }
.article-nav { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 72px; }
.article-nav a { min-height: 90px; padding: 16px; border: 1px solid var(--line); border-radius: var(--radius-sm); background: var(--bg-raised); transition: border-color var(--ease), transform var(--ease); }
.article-nav a:hover { border-color: var(--accent); transform: translateY(-2px); }
.article-nav a small { display: block; color: var(--text-faint); font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 10px; }
.article-nav a strong { display: block; margin-top: 6px; font-size: 14px; }
.article-nav__next { text-align: right; }

.prose { min-width: 0; color: var(--text); font-size: 17px; line-height: 1.9; }
.prose > :first-child { margin-top: 0; }
.prose h2, .prose h3, .prose h4 { scroll-margin-top: 100px; letter-spacing: -.035em; line-height: 1.25; }
.prose h2 { margin: 2.5em 0 .7em; font-size: 28px; }
.prose h3 { margin: 2em 0 .55em; font-size: 22px; }
.prose h4 { margin: 1.8em 0 .45em; font-size: 18px; }
.prose p { margin: 1.2em 0; }
.prose a { color: var(--accent); text-decoration: underline; text-decoration-color: color-mix(in srgb, var(--accent) 35%, transparent); text-underline-offset: 3px; }
.prose a:hover { text-decoration-color: var(--accent); }
.prose ul, .prose ol { padding-left: 1.4em; }
.prose li + li { margin-top: .35em; }
.prose blockquote { margin: 1.8em 0; padding: 3px 0 3px 20px; border-left: 3px solid var(--accent); color: var(--text-soft); }
.prose img { max-width: 100%; height: auto; border: 1px solid var(--line); border-radius: var(--radius-sm); }
.prose code { padding: .15em .35em; border-radius: 4px; background: var(--bg-muted); color: var(--accent); font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: .82em; }
.prose pre { position: relative; overflow: auto; margin: 1.6em 0; padding: 18px; border: 1px solid #22323a; border-radius: var(--radius-sm); background: var(--code); color: var(--code-text); line-height: 1.65; }
.prose pre.has-copy { padding-top: 47px; }
.code-copy { position: absolute; top: 10px; right: 10px; padding: 5px 8px; border: 1px solid #3a5058; border-radius: 5px; background: transparent; color: #a6c2c2; font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 10px; }
.code-copy:hover, .code-copy:focus-visible { border-color: var(--accent); color: var(--accent-bright); }
.prose pre code { padding: 0; background: transparent; color: inherit; font-size: .82em; }
.prose table { width: 100%; margin: 1.6em 0; border-collapse: collapse; font-size: 14px; }
.prose th, .prose td { padding: 9px 11px; border: 1px solid var(--line); text-align: left; }
.prose th { background: var(--bg-muted); font-weight: 700; }
.prose hr { margin: 3em 0; border: 0; border-top: 1px solid var(--line); }

.tags-page { padding: 56px 0 100px; }
.category-page { padding: 56px 0 100px; }
.category-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.category-page .category-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.category-card { min-height: 210px; padding: 20px; border: 1px solid var(--line); border-radius: var(--radius-md); background: var(--bg-raised); display: flex; flex-direction: column; transition: transform var(--ease), border-color var(--ease), box-shadow var(--ease); }
.category-card:hover, .category-card:focus-visible { transform: translateY(-3px); border-color: var(--category-color, var(--accent)); box-shadow: var(--shadow); }
.category-card__count { color: var(--category-color, var(--accent)); font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 11px; }
.category-card strong { margin-top: 30px; font-size: 23px; letter-spacing: -.03em; }
.category-card p { flex: 1; margin: 8px 0 16px; color: var(--text-soft); font-size: 13px; line-height: 1.6; }
.category-card__more { color: var(--text-faint); font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 11px; }
.category-card--cyan { --category-color: var(--accent); }
.category-card--amber { --category-color: var(--amber); }
.category-card--violet { --category-color: var(--violet); }
.category-card--rose { --category-color: #d05c7c; }
.category-sections { display: grid; gap: 58px; padding-top: 72px; }
.category-section { scroll-margin-top: 100px; }
.category-section__heading { display: flex; align-items: end; justify-content: space-between; gap: 20px; margin-bottom: 13px; }
.category-section__heading .eyebrow { margin-bottom: 7px; }
.category-section__heading h2 { margin: 0; font-size: 30px; letter-spacing: -.05em; }
.category-section__heading a { color: var(--text-faint); font-size: 12px; }
.category-section__heading a:hover { color: var(--accent); }
.category-empty { padding: 24px; border: 1px dashed var(--line-strong); border-radius: var(--radius-sm); background: color-mix(in srgb, var(--bg-muted) 55%, transparent); }
.category-empty span { color: var(--text-faint); font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 11px; }
.category-empty p { margin: 5px 0 0; color: var(--text-soft); font-size: 14px; }
.topic-index-page { padding: 58px 0 100px; }
.topic-detail__hero { padding: 72px 0 58px; border-bottom: 1px solid var(--line); background: radial-gradient(circle at 78% 18%, color-mix(in srgb, var(--accent) 13%, transparent), transparent 34%), var(--bg); }
.topic-detail__back { display: inline-block; margin-bottom: 42px; color: var(--text-faint); font-size: 12px; }
.topic-detail__back:hover { color: var(--accent); }
.topic-detail__hero h1 { margin: 0; font-size: clamp(44px, 7vw, 72px); letter-spacing: -.065em; line-height: 1.04; }
.topic-detail__lede { max-width: 650px; margin: 20px 0 0; color: var(--text-soft); font-size: 19px; line-height: 1.6; }
.topic-detail__meta { display: flex; flex-wrap: wrap; gap: 10px 18px; margin-top: 26px; color: var(--text-faint); font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 10px; }
.topic-detail__body { padding: 64px 0 100px; }
.topic-detail__intro { max-width: 720px; }
.topic-detail__section { margin-top: 70px; }
.topic-related-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.topic-related-grid a { padding: 19px; border: 1px solid var(--line); border-radius: var(--radius-md); background: var(--bg-raised); transition: transform var(--ease), border-color var(--ease); }
.topic-related-grid a:hover { transform: translateY(-2px); border-color: var(--accent); }
.topic-related-grid small { color: var(--accent); font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 9px; text-transform: uppercase; }
.topic-related-grid strong { display: block; margin-top: 6px; font-size: 18px; }
.topic-related-grid p { margin: 7px 0 0; color: var(--text-soft); font-size: 12px; line-height: 1.55; }
.topic-detail__columns { display: grid; grid-template-columns: minmax(0, 1fr) 230px; align-items: start; gap: 50px; }
.topic-detail__columns .topic-detail__section { min-width: 0; }
.topic-detail__columns .section-heading > span { color: var(--text-faint); font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 10px; }
.topic-recent { position: sticky; top: 105px; margin-top: 70px; padding: 19px; border: 1px solid var(--line); border-radius: var(--radius-md); background: var(--bg-raised); }
.topic-recent h2 { margin: 0; font-size: 20px; letter-spacing: -.03em; }
.topic-recent ol { margin: 14px 0 0; padding: 0; list-style: none; }
.topic-recent li { border-top: 1px solid var(--line); }
.topic-recent a { display: block; padding: 11px 0; }
.topic-recent a:hover strong { color: var(--accent); }
.topic-recent strong, .topic-recent time { display: block; }
.topic-recent strong { font-size: 12px; transition: color var(--ease); }
.topic-recent time, .topic-recent > p:last-child { margin-top: 3px; color: var(--text-faint); font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 9px; }
.publish-callout { display: flex; align-items: center; justify-content: space-between; gap: 24px; margin-bottom: 48px; padding: 18px 20px; border: 1px solid color-mix(in srgb, var(--accent) 34%, var(--line)); border-radius: var(--radius-md); background: linear-gradient(100deg, color-mix(in srgb, var(--accent-soft) 70%, var(--bg-raised)), var(--bg-raised)); }
.publish-callout div { display: grid; gap: 3px; }
.publish-callout strong { font-size: 15px; }
.publish-callout span { color: var(--text-soft); font-size: 12px; }
.tag-cloud { display: flex; flex-wrap: wrap; gap: 9px; padding-bottom: 50px; border-bottom: 1px solid var(--line); }
.tag-cloud a { padding: 9px 12px; border: 1px solid var(--line); border-radius: 99px; color: var(--text-soft); font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 12px; transition: color var(--ease), border-color var(--ease), background var(--ease); }
.tag-cloud a:hover { border-color: var(--accent); background: var(--accent-soft); color: var(--accent); }
.tag-cloud small { color: var(--text-faint); }
.tag-sections { display: grid; gap: 55px; padding-top: 52px; }
.tag-section__heading { display: flex; align-items: baseline; justify-content: space-between; gap: 16px; margin-bottom: 12px; }
.tag-section__heading h2 { margin: 0; font-size: 25px; letter-spacing: -.04em; }
.tag-section__heading span { color: var(--text-faint); font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 11px; }
.tag-section__posts { border-top: 1px solid var(--line); }
.tag-section__posts a { display: grid; grid-template-columns: 90px 1fr 20px; align-items: center; gap: 15px; padding: 14px 0; border-bottom: 1px solid var(--line); }
.tag-section__posts a:hover strong, .tag-section__posts a:hover > span:last-child { color: var(--accent); }
.tag-section__posts a > span:first-child { color: var(--text-faint); font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 11px; }
.tag-section__posts strong { font-size: 15px; font-weight: 600; transition: color var(--ease); }
.tag-section__posts > a > span:last-child { color: var(--text-faint); transition: color var(--ease); }

.archive-page { padding: 58px 0 100px; }
.archive-year + .archive-year { margin-top: 66px; }
.archive-year__heading { display: flex; align-items: baseline; justify-content: space-between; gap: 20px; margin-bottom: 12px; }
.archive-year__heading h2 { margin: 0; font-size: 30px; letter-spacing: -.05em; }
.archive-year__heading span { color: var(--text-faint); font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 10px; letter-spacing: .1em; }
.archive-list { border-top: 1px solid var(--line); }
.archive-item { display: grid; grid-template-columns: 70px 1fr 20px; align-items: center; gap: 16px; padding: 17px 0; border-bottom: 1px solid var(--line); }
.archive-item:hover strong, .archive-item:hover .archive-item__arrow { color: var(--accent); }
.archive-item time { color: var(--text-faint); font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 12px; }
.archive-item strong, .archive-item span { display: block; }
.archive-item strong { font-size: 15px; transition: color var(--ease); }
.archive-item div span { margin-top: 2px; color: var(--text-faint); font-size: 12px; }
.archive-item__arrow { color: var(--text-faint); transition: color var(--ease); }

.about-intro { font-size: 19px; }
.about-lede { margin-top: 0 !important; font-size: 27px; letter-spacing: -.035em; line-height: 1.45; }
.about-columns { display: grid; grid-template-columns: 1fr 1fr; gap: 50px; margin-top: 60px; padding-top: 42px; border-top: 1px solid var(--line); }
.about-columns h2 { margin: 0 0 12px; font-size: 22px; }
.about-columns p, .about-columns li { color: var(--text-soft); font-size: 15px; }
.about-contact { display: flex; justify-content: space-between; gap: 18px; margin-top: 60px; padding: 18px 0; border-top: 1px solid var(--line); color: var(--text-faint); font-size: 13px; }
.about-contact a { color: var(--accent); }

.empty-state { min-height: 62vh; padding-top: 150px; text-align: center; }
.empty-state h1 { margin: 0; font-size: clamp(40px, 7vw, 72px); letter-spacing: -.065em; line-height: 1.05; }
.empty-state p:not(.eyebrow) { max-width: 450px; margin: 20px auto 30px; color: var(--text-soft); }

.site-footer { border-top: 1px solid var(--line); }
.site-footer__inner { width: min(var(--max), calc(100% - 48px)); min-height: 150px; margin: 0 auto; padding: 34px 0; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.footer-title { margin: 0; font-weight: 700; }
.footer-note { margin: 5px 0 0; color: var(--text-faint); font-size: 12px; }
.footer-links { display: flex; align-items: center; flex-wrap: wrap; justify-content: flex-end; gap: 18px; color: var(--text-faint); font-size: 12px; }
.footer-links a:hover { color: var(--accent); }

.search-dialog { position: fixed; inset: 0; z-index: 40; display: grid; place-items: start center; padding: 13vh 20px 20px; }
.search-dialog[hidden] { display: none; }
.search-dialog__backdrop { position: absolute; inset: 0; background: rgba(5, 10, 13, .62); backdrop-filter: blur(6px); }
.search-dialog__panel { position: relative; width: min(650px, 100%); max-height: 72vh; overflow: auto; padding: 18px; border: 1px solid var(--line-strong); border-radius: var(--radius-md); background: var(--bg-raised); box-shadow: 0 28px 90px rgba(0,0,0,.26); }
.search-dialog__topline { display: flex; align-items: center; justify-content: space-between; margin-bottom: 15px; }
.search-dialog__topline h2 { margin: 0; font-size: 16px; }
.icon-button { width: 30px; height: 30px; border-radius: 50%; background: var(--bg-muted); color: var(--text-soft); font-size: 20px; line-height: 1; }
.icon-button:hover { color: var(--accent); }
.search-input-wrap { display: flex; align-items: center; gap: 10px; padding: 12px 14px; border: 1px solid var(--line-strong); border-radius: var(--radius-sm); color: var(--accent); }
.search-input-wrap:focus-within { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
.search-input-wrap input { width: 100%; min-width: 0; border: 0; outline: 0; background: transparent; color: var(--text); font-size: 15px; }
.search-filters { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)) auto; align-items: end; gap: 8px; margin-top: 11px; }
.search-filters label { display: grid; gap: 4px; }
.search-filters label > span { color: var(--text-faint); font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 9px; letter-spacing: .06em; }
.search-filters select { width: 100%; min-width: 0; height: 36px; padding: 0 28px 0 9px; border: 1px solid var(--line); border-radius: 6px; outline: none; background: var(--bg); color: var(--text-soft); font-size: 11px; }
.search-filters select:focus { border-color: var(--accent); box-shadow: 0 0 0 2px var(--accent-soft); }
.search-filters button { min-height: 36px; padding: 7px 10px; border: 1px solid var(--line); border-radius: 6px; background: transparent; color: var(--text-faint); font-size: 10px; white-space: nowrap; }
.search-filters button:hover, .search-filters button:focus-visible { border-color: var(--accent); color: var(--accent); }
.search-summary { min-height: 27px; padding-top: 9px; display: flex; align-items: center; justify-content: space-between; gap: 10px; color: var(--text-faint); font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 10px; }
.search-summary small { font: inherit; }
.search-results { display: grid; gap: 8px; margin-top: 14px; }
.search-result { display: block; padding: 13px; border: 1px solid transparent; border-radius: var(--radius-sm); }
.search-result:hover, .search-result:focus-visible { border-color: var(--line); background: var(--bg-muted); }
.search-result strong { display: block; font-size: 14px; }
.search-result p { margin: 3px 0 0; color: var(--text-soft); font-size: 12px; line-height: 1.55; }
.search-result small { display: block; margin-top: 7px; color: var(--accent); font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 10px; }
.search-empty { padding: 25px 10px; color: var(--text-faint); text-align: center; font-size: 13px; }

@media (max-width: 900px) {
    .home-hero__grid { grid-template-columns: 1fr; gap: 44px; }
    .home-hero__signal { grid-template-columns: repeat(3, 1fr); }
    .signal-card, .signal-card--large { min-height: 136px; }
    .signal-card { display: block; }
    .signal-card span, .signal-card strong, .signal-card small { display: block; }
    .signal-card strong { margin-top: 22px; font-size: 15px; }
    .topic-grid, .post-grid, .category-grid { grid-template-columns: repeat(2, 1fr); }
    .article-layout { grid-template-columns: minmax(0, 760px); }
    .article-aside { display: none; }
    .topic-detail__columns { grid-template-columns: 1fr; gap: 0; }
    .topic-recent { position: static; }
}

@media (max-width: 680px) {
    .container, .container--narrow, .site-header__inner, .site-footer__inner { width: min(100% - 32px, var(--max)); }
    .site-header__inner { min-height: 66px; }
    .brand__copy small { display: none; }
    .nav-toggle { display: inline-flex; }
    .site-nav { position: absolute; top: 66px; left: 16px; right: 16px; display: none; flex-direction: column; align-items: stretch; gap: 2px; padding: 10px; border: 1px solid var(--line); border-radius: var(--radius-md); background: var(--bg-raised); box-shadow: var(--shadow); }
    .site-nav.is-open { display: flex; }
    .site-nav > a, .nav-search { justify-content: space-between; min-height: 42px; padding: 10px 12px; }
    .theme-toggle { align-self: flex-start; }
    .home-hero__grid { min-height: auto; padding: 70px 0 66px; }
    .home-hero h1 { font-size: clamp(40px, 12vw, 58px); }
    .home-hero__lede { font-size: 16px; }
    .home-hero__signal { grid-template-columns: 1fr; }
    .signal-card, .signal-card--large { min-height: auto; padding: 16px; }
    .signal-card strong { margin-top: 12px; }
    .section-block { padding-top: 65px; }
    .section-block--latest { padding-bottom: 70px; }
    .section-heading { align-items: start; flex-direction: column; gap: 8px; }
    .section-heading__actions { align-items: flex-start; flex-wrap: wrap; gap: 8px 14px; }
    .section-heading h2 { font-size: 27px; }
    .topic-grid, .post-grid, .category-grid, .about-columns, .topic-related-grid { grid-template-columns: 1fr; }
    .topic-card { min-height: 190px; }
    .page-hero { padding: 66px 0 45px; }
    .page-hero h1 { font-size: 45px; }
    .page-content, .tags-page { padding-top: 48px; padding-bottom: 70px; }
    .article-header { padding-top: 48px; padding-bottom: 38px; }
    .article-header__topline { align-items: start; flex-direction: column; margin-bottom: 30px; }
    .tag-list { justify-content: flex-start; }
    .article-header h1 { font-size: 43px; }
    .article-lede { font-size: 17px; }
    .article-meta { gap: 8px 12px; font-size: 10px; }
    .article-topics { align-items: flex-start; }
    .article-topics > span { width: 100%; }
    .topic-detail__hero { padding: 50px 0 42px; }
    .topic-detail__back { margin-bottom: 30px; }
    .topic-detail__hero h1 { font-size: 45px; }
    .topic-detail__lede { font-size: 16px; }
    .topic-detail__body, .topic-index-page { padding-top: 48px; padding-bottom: 70px; }
    .topic-detail__section, .topic-recent { margin-top: 52px; }
    .article-feedback, .about-contact, .site-footer__inner, .publish-callout { align-items: flex-start; flex-direction: column; }
    .article-series { margin-top: 54px; }
    .article-series__list a { grid-template-columns: 34px 1fr; }
    .article-series__list small { display: none; }
    .related-posts { padding-top: 58px; }
    .text-relations { padding-top: 58px; }
    .text-relations__grid { grid-template-columns: 1fr; }
    .article-nav { grid-template-columns: 1fr; margin-top: 48px; }
    .article-nav__next { text-align: left; }
    .prose { font-size: 16px; line-height: 1.85; }
    .prose h2 { font-size: 25px; }
    .prose h3 { font-size: 20px; }
    .tag-section__posts a { grid-template-columns: 78px 1fr 16px; gap: 10px; }
    .archive-item { grid-template-columns: 54px 1fr 16px; gap: 10px; }
    .footer-links { justify-content: flex-start; }
    .search-filters { grid-template-columns: 1fr 1fr; }
    .search-filters button { align-self: end; }
    .search-summary small { display: none; }
}

@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    *, *::before, *::after { transition-duration: .01ms !important; animation-duration: .01ms !important; }
}