:root {
  color-scheme: light;
  --paper: #f4f1ea;
  --surface: #fffdf8;
  --surface-soft: #f8f5ee;
  --ink: #25221e;
  --ink-2: #514b43;
  --muted: #6f675d;
  --line: #ddd5c8;
  --line-strong: #c9beaf;
  --accent: #c65f3d;
  --accent-dark: #99462d;
  --accent-soft: #f6e5dc;
  --success: #2e8b67;
  --success-soft: #eaf3ed;
  --aquatic: #607d6f;
  --aquatic-dark: #31594a;
  --aquatic-soft: #edf3ee;
  --aquatic-line: #b8cbbf;
  --shadow: 0 18px 48px rgba(62, 52, 42, .075);
  --shadow-soft: 0 8px 24px rgba(62, 52, 42, .055);
  --display: ui-serif, "Iowan Old Style", "Songti SC", STSong, Georgia, serif;
  --sans: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  --mono: "SFMono-Regular", Consolas, monospace;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; text-size-adjust: 100%; }
body { margin: 0; color: var(--ink); background: var(--paper); font-family: var(--sans); line-height: 1.5; -webkit-font-smoothing: antialiased; }
a { color: inherit; -webkit-tap-highlight-color: rgba(198, 95, 61, .14); touch-action: manipulation; }
button, input { font: inherit; }
button { color: inherit; -webkit-tap-highlight-color: rgba(198, 95, 61, .14); touch-action: manipulation; }
::selection { color: var(--ink); background: #efc7b6; }

.reading-progress { position: fixed; inset: 0 0 auto; z-index: 100; height: 3px; pointer-events: none; }
.reading-progress span { display: block; width: 0; height: 100%; background: var(--accent); transition: width .1s linear; }

.site-header { position: sticky; top: 0; z-index: 50; width: 100%; min-height: 76px; margin: 0; padding: 0 24px; border-bottom: 1px solid rgba(201, 190, 175, .58); background: rgba(244, 241, 234, .9); backdrop-filter: blur(18px); }
.site-header-inner { display: flex; align-items: center; justify-content: space-between; width: min(1180px, 100%); min-height: 76px; margin: 0 auto; }
.site-brand { display: flex; align-items: center; gap: 12px; text-decoration: none; }
.brand-signal { width: 2px; height: 38px; border-radius: 2px; background: var(--accent); }
.site-brand > span:last-child { display: grid; gap: 2px; }
.site-brand small { color: var(--muted); font: 700 8px/1.2 var(--mono); letter-spacing: 1.7px; }
.site-brand strong { font: 500 25px/1.05 var(--display); letter-spacing: -.02em; }
.brand-dot { color: var(--accent); }
.site-credits { display: flex; align-items: center; gap: 11px; padding: 0; border: 0; background: transparent; }
.credit-label { color: var(--muted); font: 700 8px/1 var(--mono); letter-spacing: .13em; text-transform: uppercase; }
.credit-people { display: flex; align-items: center; gap: 7px; color: var(--ink-2); font-size: 11px; font-weight: 720; }
.credit-people a { color: var(--ink); text-decoration: none; transition: color .2s ease; }
.credit-people a:hover { color: var(--aquatic-dark); }
.credit-people i { color: var(--accent); font-style: normal; }

.library-shell, .article-shell { width: min(1180px, calc(100% - 48px)); margin: 28px auto 80px; }
.library-shell { margin-top: 0; }
.library-hero { position: relative; min-height: 300px; padding: 68px 0 52px; border: 0; background: transparent; }
.library-hero::before, .library-hero::after { content: none; }
.eyebrow { display: flex; align-items: center; gap: 9px; margin: 0 0 15px; color: var(--muted); font: 700 10px/1.2 var(--mono); letter-spacing: 2.7px; }
.eyebrow i { display: inline-block; width: 7px; height: 7px; border-radius: 50%; background: var(--success); box-shadow: 0 0 0 4px var(--success-soft); }
.hero-grid { position: relative; z-index: 1; display: grid; grid-template-columns: minmax(0, 1fr) auto; align-items: end; gap: 56px; min-height: 180px; }
.hero-copy { max-width: 650px; }
.library-hero h1 { max-width: 650px; margin: 0; font: 550 clamp(50px, 5.6vw, 78px)/1 var(--display); letter-spacing: -.04em; text-wrap: balance; }
.library-hero h1::after { content: "."; color: var(--accent); }
.hero-lede { max-width: 610px; margin: 22px 0 0; color: var(--ink-2); font-size: 15px; line-height: 1.8; text-wrap: pretty; }
.library-stats { display: grid; grid-template-columns: repeat(3, minmax(116px, 1fr)); gap: 0; margin: 0; }
.view-filter { position: relative; display: flex; min-width: 0; min-height: 74px; flex-direction: column; align-items: flex-start; justify-content: center; padding: 2px 24px; border: 0; border-left: 1px solid var(--line); color: var(--muted); background: transparent; text-align: left; cursor: pointer; transition: color .2s ease; }
.view-filter:first-child { padding-left: 0; border-left: 0; }
.view-filter::after { content: ""; position: absolute; right: 24px; bottom: 0; left: 24px; height: 2px; background: transparent; }
.view-filter:first-child::after { left: 0; }
.view-filter:hover, .view-filter:focus-visible, .view-filter.is-active { color: var(--ink); }
.view-filter.is-active::after { background: var(--accent); }
.view-filter strong { font: 500 31px/1 var(--display); letter-spacing: -.02em; }
.view-filter span { margin-top: 9px; font-size: 10px; font-weight: 720; letter-spacing: .08em; }

.discovery-panel { padding: 0 0 36px; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); background: transparent; }
.weekly-activity { margin-bottom: 38px; padding: 42px 0 46px; border-bottom: 1px solid var(--line); }
.weekly-activity-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 48px; }
.weekly-activity-title { display: grid; gap: 4px; }
.weekly-activity-title small { color: var(--aquatic-dark); font: 750 8px/1.2 var(--mono); letter-spacing: .16em; }
.weekly-activity-title h2 { margin: 1px 0 0; font: 500 clamp(29px, 3vw, 40px)/1.05 var(--display); letter-spacing: -.025em; }
.weekly-activity-title p { margin: 8px 0 0; color: var(--muted); font-size: 12px; line-height: 1.5; }
.weekly-activity-meta { display: flex; align-items: center; gap: 24px; }
.weekly-activity-meta > p { display: grid; gap: 5px; margin: 0; text-align: right; }
.weekly-activity-meta > p > span { color: var(--ink-2); font: 700 11px/1.2 var(--mono); letter-spacing: .04em; }
.weekly-activity-meta > p > small { color: var(--muted); font-size: 10px; }
.weekly-trend { min-width: 0; margin-top: 30px; padding: 24px 30px 20px; border: 1px solid rgba(201, 190, 175, .72); border-radius: 22px; background: linear-gradient(145deg, rgba(255, 253, 248, .94), rgba(248, 245, 238, .72)); box-shadow: 0 22px 60px rgba(54, 73, 70, .06); }
.weekly-chart-caption { display: flex; justify-content: space-between; gap: 20px; margin: 0 2px 13px; color: var(--muted); font: 700 8px/1.2 var(--mono); letter-spacing: .13em; text-transform: uppercase; }
.weekly-trend svg { display: block; width: 100%; height: 176px; overflow: visible; }
.weekly-chart-grid { fill: none; stroke: rgba(201, 190, 175, .55); stroke-width: 1; vector-effect: non-scaling-stroke; }
.weekly-chart-area { fill: url(#weekly-area-gradient); }
.weekly-chart-line { fill: none; stroke: var(--aquatic-dark); stroke-linecap: round; stroke-linejoin: round; stroke-width: 2.4; vector-effect: non-scaling-stroke; }
.weekly-chart-marker-line { stroke: rgba(23, 78, 85, .25); stroke-dasharray: 3 5; stroke-width: 1; vector-effect: non-scaling-stroke; }
.weekly-chart-halo { fill: rgba(79, 146, 153, .16); stroke: none; }
.weekly-chart-marker { fill: var(--aquatic-dark); stroke: var(--surface); stroke-width: 2.5; vector-effect: non-scaling-stroke; }
.weekly-chart-value { fill: var(--ink); font: 500 24px/1 var(--display); }
.weekly-periods { display: grid; grid-template-columns: repeat(6, 1fr); margin-top: 5px; padding: 0 1px; }
.weekly-periods span { display: grid; min-height: 30px; gap: 3px; color: var(--muted); text-align: center; }
.weekly-periods small { font: 8px/1 var(--mono); }
.weekly-periods strong { color: var(--aquatic-dark); font: 750 8px/1 var(--mono); letter-spacing: .08em; }
.weekly-periods .is-current small { color: var(--ink); font-weight: 750; }
.weekly-export { min-height: 44px; padding: 10px 16px; border: 1px solid var(--ink); border-radius: 10px; color: var(--surface); background: var(--ink); font-size: 11px; font-weight: 720; cursor: pointer; box-shadow: 0 8px 20px rgba(37, 34, 30, .09); transition: color .18s ease, border-color .18s ease, background .18s ease, transform .18s ease; }
.weekly-export:hover:not(:disabled), .weekly-export:focus-visible:not(:disabled) { color: white; border-color: var(--aquatic-dark); background: var(--aquatic-dark); transform: translateY(-1px); }
.weekly-export:disabled { color: var(--muted); cursor: not-allowed; opacity: .45; }
.filter-heading { display: flex; align-items: baseline; justify-content: space-between; gap: 20px; margin: 0 0 14px; }
.filter-heading h2 { margin: 0; font: 500 18px/1.2 var(--display); }
.filter-heading output { color: var(--muted); font: 11px/1.4 var(--mono); }
.tag-filters, .keyword-row { display: flex; flex-wrap: wrap; }
.tag-filters { gap: 7px 24px; }
.keyword-row { gap: 7px; }
.keyword { display: inline-flex; align-items: center; gap: 7px; min-height: 29px; padding: 5px 10px; border: 1px solid #dfbcae; border-radius: 999px; color: var(--accent-dark); background: var(--accent-soft); font-size: 11px; font-weight: 680; }
.content-status-badge { display: inline-flex; align-items: center; min-height: 29px; padding: 5px 10px; border: 1px solid #d3b16c; border-radius: 999px; color: #71531d; background: #fff7df; font-size: 10px; font-weight: 720; }
.tag-filter { position: relative; min-height: 40px; padding: 8px 0 7px; border: 0; color: var(--muted); background: transparent; font-size: 12px; font-weight: 680; cursor: pointer; transition: color .18s ease; }
.tag-filter::after { content: ""; position: absolute; right: 100%; bottom: 5px; left: 0; height: 1px; background: var(--accent); transition: right .2s ease; }
.tag-filter:hover, .tag-filter:focus-visible, .tag-filter.is-active { color: var(--ink); }
.tag-filter:hover::after, .tag-filter:focus-visible::after, .tag-filter.is-active::after { right: 0; }
.tag-filter.is-active::after { height: 2px; }
.tag-filter span { margin-left: 3px; color: var(--muted); font: 700 9px/1 var(--mono); }

.article-grid { display: grid; grid-template-columns: 1fr; gap: 18px; margin-top: 22px; }
.article-card { display: grid; grid-template-columns: minmax(0, 1fr) 230px; align-items: stretch; gap: 48px; min-height: 250px; padding: 36px 40px; border: 1px solid var(--line); border-radius: 22px; color: var(--ink); background: var(--surface); box-shadow: var(--shadow-soft); transition: transform .24s ease, border-color .24s ease, background .24s ease, box-shadow .24s ease; }
.article-card:hover { transform: translateY(-2px); border-color: var(--aquatic-line); box-shadow: 0 22px 54px rgba(40, 103, 110, .1); }
.article-card.is-favorite { border-color: #d9b09f; background: #fffaf5; }
.card-main { min-width: 0; align-self: center; }
.article-card h2 { display: -webkit-box; overflow: hidden; margin: 24px 0 13px; font: 550 clamp(28px, 3vw, 38px)/1.2 var(--display); letter-spacing: -.025em; text-wrap: balance; overflow-wrap: anywhere; -webkit-box-orient: vertical; -webkit-line-clamp: 2; transition: color .24s ease; }
.article-title-link { color: var(--ink); text-decoration: none; text-decoration-thickness: 1px; text-underline-offset: 5px; transition: color .2s ease, text-decoration-color .2s ease; }
.article-title-link:hover, .article-title-link:focus-visible { color: var(--aquatic-dark); text-decoration: underline; text-decoration-color: var(--aquatic-line); }
.card-summary { display: -webkit-box; overflow: hidden; max-width: 900px; margin: 0; color: var(--ink-2); font-size: 14px; line-height: 1.85; -webkit-box-orient: vertical; -webkit-line-clamp: 2; }
.card-author { margin: 11px 0 0; color: var(--muted); font-size: 11px; line-height: 1.5; }
.card-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; margin-top: 22px; }
.card-action, .card-source-link { display: inline-flex; min-height: 40px; align-items: center; justify-content: center; padding: 8px 12px; border: 1px solid var(--line-strong); border-radius: 9px; color: var(--ink-2); background: transparent; font-size: 11px; font-weight: 720; text-decoration: none; cursor: pointer; transition: color .18s ease, border-color .18s ease, background .18s ease, transform .18s ease; }
.card-action:hover, .card-action:focus-visible, .card-source-link:hover, .card-source-link:focus-visible { color: var(--aquatic-dark); border-color: var(--aquatic-line); background: var(--aquatic-soft); transform: translateY(-1px); }
.favorite-action[aria-pressed="true"] { color: var(--accent-dark); border-color: #d9aa97; background: var(--accent-soft); }
.review-action { color: var(--muted); }
.card-source-link { border-color: transparent; color: var(--ink); }
.card-meta { display: flex; min-width: 0; flex-direction: column; justify-content: center; padding-left: 32px; border-left: 1px solid var(--line); transition: border-color .24s ease; }
.article-card:hover .card-meta { border-left-color: var(--aquatic-line); }
.card-meta > span { color: var(--muted); font-size: 12px; line-height: 1.65; }
.card-meta .published-label { color: var(--ink-2); font-weight: 720; }
.card-meta .activity-label { margin-top: 8px; }
.empty-state { padding: 90px 24px; text-align: center; }
.empty-state > span { color: var(--accent); font: 46px/1 var(--display); }
.empty-state h2 { margin: 15px 0 7px; font: 500 30px/1.2 var(--display); }
.empty-state p { color: var(--muted); }

.site-footer { display: flex; justify-content: center; align-items: center; gap: 7px; width: min(1180px, calc(100% - 48px)); margin: 0 auto 38px; color: var(--muted); font: 650 9px/1.4 var(--mono); letter-spacing: .1em; }
.site-footer > span { color: var(--muted); }
.site-footer a { color: var(--ink-2); font-weight: 750; text-decoration: none; transition: color .2s ease; }
.site-footer a:hover { color: var(--aquatic-dark); }
.site-footer i { color: var(--accent); font-style: normal; }

.article-shell { max-width: 1120px; margin-top: 38px; }
.back-link { display: inline-flex; margin: 4px 0 18px; padding: 8px 0; color: var(--muted); font-size: 12px; font-weight: 700; text-decoration: none; transition: color .2s ease, transform .2s ease; }
.back-link:hover { color: var(--accent-dark); transform: translateX(-3px); }
.article-hero { padding: 48px 56px 54px; border: 1px solid var(--line); border-radius: 26px; background: var(--surface); box-shadow: var(--shadow); }
.article-hero .keyword-row { margin: 22px 0 20px; }
.article-hero h1 { max-width: 920px; margin: 0; font: 550 clamp(42px, 5.6vw, 70px)/1.08 var(--display); letter-spacing: -.035em; text-wrap: balance; overflow-wrap: anywhere; }
.article-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; margin-top: 28px; color: var(--muted); font-size: 12px; }
.meta-dot { width: 4px; height: 4px; border-radius: 50%; background: var(--accent); }

.summary-card { position: relative; overflow: hidden; margin-top: 18px; padding: 38px 44px 42px 128px; border: 1px solid #d9c0b5; border-radius: 22px; background: var(--accent-soft); box-shadow: var(--shadow-soft); }
.summary-card::after { content: "“"; position: absolute; right: 28px; top: -12px; color: rgba(198, 95, 61, .12); font: 180px/1 var(--display); }
.summary-label { position: absolute; left: 36px; top: 38px; display: grid; gap: 10px; }
.summary-label span, .section-kicker > span { display: grid; width: 46px; height: 46px; place-items: center; border-radius: 50%; color: var(--surface); background: var(--accent); font: 700 12px/1 var(--mono); }
.summary-label p, .section-kicker p { margin: 0; color: var(--accent-dark); font: 700 9px/1.4 var(--mono); letter-spacing: 1.8px; writing-mode: vertical-rl; }
.summary-card h2 { margin: 0 0 14px; font: 500 30px/1.2 var(--display); }
.summary-card > p { position: relative; z-index: 1; max-width: 850px; margin: 0; color: #453d35; font-size: 17px; line-height: 1.95; }
.source-warning { display: flex; align-items: flex-start; gap: 18px; margin-top: 18px; padding: 20px 24px; border: 1px solid #d7be82; border-radius: 16px; background: #fff8e8; box-shadow: var(--shadow-soft); }
.source-warning span { flex: 0 0 auto; padding: 5px 9px; border-radius: 999px; color: #71531d; background: #f6e5b8; font-size: 10px; font-weight: 750; }
.source-warning p { margin: 1px 0 0; color: var(--ink-2); font-size: 12px; line-height: 1.7; }

.reading-layout { display: grid; grid-template-columns: 220px minmax(0, 1fr); align-items: start; gap: 18px; margin-top: 18px; }
.toc-card { position: sticky; top: 120px; padding: 22px; border: 1px solid var(--line); border-radius: 18px; background: var(--surface); box-shadow: var(--shadow-soft); }
.toc-card > p { margin: 0 0 15px; color: var(--muted); font: 700 9px/1.2 var(--mono); letter-spacing: 1.7px; }
.toc-card nav { display: grid; gap: 4px; }
.toc-card nav > span { color: var(--muted); font-size: 11px; }
.toc-card a { display: block; padding: 8px 9px; border-left: 2px solid transparent; border-radius: 0 7px 7px 0; color: var(--muted); font-size: 11px; line-height: 1.45; text-decoration: none; transition: color .18s ease, border-color .18s ease, background .18s ease; }
.toc-card a:hover, .toc-card a.is-active { color: var(--ink); border-left-color: var(--accent); background: var(--accent-soft); }
.toc-card a[data-level="3"] { padding-left: 18px; font-size: 10px; }

.translated-copy { min-width: 0; padding: 46px 58px 64px; border: 1px solid var(--line); border-radius: 22px; background: var(--surface); box-shadow: var(--shadow); }
.section-kicker { display: flex; align-items: center; gap: 16px; margin-bottom: 48px; padding-bottom: 26px; border-bottom: 1px solid var(--line); }
.section-kicker p { color: var(--muted); writing-mode: initial; }
.section-kicker h2 { margin: 6px 0 0; font: 500 34px/1.1 var(--display); }
.prose { max-width: 720px; margin: 0 auto; color: #302c27; font-size: 16px; line-height: 1.95; }
.prose p { margin: 0 0 1.55em; }
.prose h2, .prose h3, .prose h4 { scroll-margin-top: 120px; color: var(--ink); font-family: var(--display); font-weight: 500; letter-spacing: -.02em; }
.prose h2 { margin: 2.4em 0 .9em; font-size: 34px; line-height: 1.25; }
.prose h3 { margin: 2em 0 .75em; font-size: 25px; line-height: 1.3; }
.prose h4 { margin: 1.8em 0 .7em; font-size: 20px; }
.prose a { color: var(--accent-dark); text-decoration-color: #d89b82; text-underline-offset: 4px; }
.prose strong { color: #181612; font-weight: 750; }
.prose code { padding: .12em .38em; border: 1px solid #e1d8cc; border-radius: 5px; background: var(--surface-soft); font: .88em/1.5 var(--mono); }
.prose ul, .prose ol { margin: 0 0 1.6em; padding-left: 1.45em; }
.prose li { margin: .5em 0; padding-left: .25em; }
.prose li::marker { color: var(--accent); }
.prose blockquote { margin: 2em 0; padding: 18px 22px; border-left: 3px solid var(--accent); color: var(--ink-2); background: var(--accent-soft); }
.prose hr { height: 1px; margin: 3em 0; border: 0; background: var(--line); }
.code-block { position: relative; margin: 2em 0; }
.code-block pre, .prose > pre { overflow: auto; padding: 24px; border-radius: 13px; color: #f8f4ed; background: #282521; font: 12px/1.75 var(--mono); }
.code-block code { padding: 0; border: 0; color: inherit; background: transparent; }
.copy-code { position: absolute; right: 10px; top: 10px; padding: 6px 9px; border: 1px solid #57514a; border-radius: 6px; color: #d8d1c7; background: #36322d; font-size: 10px; cursor: pointer; }
.copy-code:hover { color: white; border-color: #8a8175; }

.source-card { display: grid; grid-template-columns: minmax(0, 1fr) auto; align-items: center; gap: 36px; margin-top: 18px; padding: 38px 42px; border: 1px solid #b8d2c2; border-radius: 22px; background: var(--success-soft); box-shadow: var(--shadow-soft); }
.source-card .eyebrow { color: var(--success); }
.source-card h2 { margin: 0; font: 500 31px/1.2 var(--display); }
.source-card div > p:last-child { max-width: 720px; margin: 10px 0 0; color: var(--ink-2); font-size: 13px; line-height: 1.75; }
.source-card > a { display: inline-flex; align-items: center; gap: 12px; padding: 14px 18px; border-radius: 10px; color: var(--surface); background: var(--ink); font-size: 13px; font-weight: 720; text-decoration: none; transition: transform .2s ease, background .2s ease; }
.source-card > a:hover { transform: translateY(-2px); background: var(--accent); }
.source-card > a span { font-size: 18px; }

.reveal { opacity: 0; transform: translateY(12px); }
.reveal.is-visible { opacity: 1; transform: none; transition: opacity .55s ease, transform .55s cubic-bezier(.2,.8,.2,1); }
.article-card.reveal.is-visible { transition: opacity .55s ease, transform .24s ease, border-color .24s ease, background .24s ease, box-shadow .24s ease; }
.article-card.reveal.is-visible:hover { transform: translateY(-2px); }

:is(.weekly-export, .card-action, .card-source-link, .copy-code, .source-card > a):active {
  transform: scale(.97);
  transition-duration: 70ms;
}
.view-filter:active, .tag-filter:active { transform: scale(.98); transform-origin: left center; transition-duration: 70ms; }
.site-brand:active, .credit-people a:active, .article-title-link:active, .back-link:active, .site-footer a:active { opacity: .66; }

:focus-visible { outline: 3px solid rgba(198, 95, 61, .35); outline-offset: 3px; }

@media (max-width: 980px) {
  .hero-grid { grid-template-columns: 1fr; align-items: start; gap: 34px; }
  .library-stats { width: min(100%, 430px); }
  .weekly-activity-head { align-items: flex-start; }
  .weekly-activity-meta { align-items: flex-end; flex-direction: column; gap: 12px; }
  .article-card { grid-template-columns: minmax(0, 1fr) 200px; gap: 34px; }
  .reading-layout { grid-template-columns: 1fr; }
  .toc-card { position: static; }
  .toc-card nav { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 700px) {
  .site-header { min-height: 66px; padding: 0 12px; }
  .site-header-inner { min-height: 66px; }
  .brand-signal { height: 32px; }
  .site-brand small { display: none; }
  .site-brand strong { font-size: 18px; }
  .credit-label { display: none; }
  .credit-people { gap: 5px; font-size: 10px; }
  .library-shell, .article-shell, .site-footer { width: calc(100% - 24px); }
  .library-shell, .article-shell { margin-top: 14px; }
  .library-shell { margin-top: 0; }
  .library-hero { min-height: auto; padding: 52px 0 40px; }
  .library-hero h1 { font-size: clamp(40px, 13vw, 64px); }
  .hero-lede { margin-top: 18px; font-size: 14px; line-height: 1.75; }
  .library-stats { width: 100%; grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .view-filter { padding: 2px 18px; }
  .view-filter:nth-child(2) { padding-right: 0; }
  .view-filter:nth-child(3) { grid-column: 1 / -1; margin-top: 16px; padding: 18px 0 0; border-top: 1px solid var(--line); border-left: 0; }
  .view-filter:nth-child(3)::after { right: 0; left: 0; }
  .view-filter strong { font-size: 25px; }
  .discovery-panel { padding-bottom: 28px; }
  .weekly-activity { margin-bottom: 30px; padding: 34px 0 36px; }
  .weekly-activity-head { display: grid; gap: 22px; }
  .weekly-activity-meta { display: grid; grid-template-columns: 1fr auto; align-items: end; }
  .weekly-activity-meta > p { text-align: left; }
  .weekly-trend { margin-top: 24px; padding: 20px 14px 16px; border-radius: 17px; }
  .weekly-trend svg { height: 140px; }
  .tag-filters { gap: 4px 18px; }
  .tag-filter { min-height: 44px; }
  .article-card { grid-template-columns: 1fr; gap: 24px; min-height: 0; padding: 26px 22px; }
  .article-card h2 { margin-top: 22px; font-size: 29px; }
  .card-actions { gap: 7px; }
  .card-action, .card-source-link { min-height: 44px; padding: 9px 12px; }
  .card-meta { padding: 18px 0 0; border-top: 1px solid var(--line); border-left: 0; }
  .article-card:hover .card-meta { border-top-color: var(--aquatic-line); border-left-color: transparent; }
  .article-hero { padding: 34px 24px 38px; border-radius: 20px; }
  .article-hero h1 { font-size: 42px; }
  .summary-card { padding: 30px 24px; }
  .summary-label { position: static; display: flex; align-items: center; margin-bottom: 19px; }
  .summary-label span { width: 38px; height: 38px; }
  .summary-label p { writing-mode: initial; }
  .summary-card > p { font-size: 15px; }
  .source-warning { display: grid; gap: 10px; padding: 18px; }
  .toc-card nav { grid-template-columns: 1fr; }
  .translated-copy { padding: 32px 22px 46px; }
  .prose { font-size: 15px; line-height: 1.9; }
  .prose h2 { font-size: 29px; }
  .source-card { grid-template-columns: 1fr; padding: 30px 24px; }
  .source-card > a { justify-self: start; }
  .site-footer { gap: 6px; font-size: 8px; letter-spacing: .06em; }
}

@media (max-width: 420px) {
  .site-credits { margin-left: auto; }
  .credit-people { font-size: 10px; }
  .weekly-activity-meta { grid-template-columns: 1fr; }
  .weekly-export { width: 100%; }
}

@media (prefers-reduced-transparency: reduce) {
  .site-header { background: var(--paper); backdrop-filter: none; }
}

@media (prefers-contrast: more) {
  .site-header, .article-card, .article-hero, .translated-copy, .toc-card, .weekly-trend { border-color: var(--ink-2); }
  .site-header { background: var(--paper); backdrop-filter: none; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; }
  .reveal { opacity: 1; transform: none; }
  .article-card:hover, .article-card.reveal.is-visible:hover, .weekly-export:hover:not(:disabled), .card-action:hover, .card-source-link:hover, .source-card > a:hover, .back-link:hover { transform: none; }
}