/* China Truth Archive. The masthead borrows the red-header layout of
   Chinese official documents (红头文件): red Song title, document
   number, red rule with a star; the footer closes with the 版记 block.
   Everything in between stays quiet. */

:root {
  --paper: #ffffff;
  --ink: #222222;
  --red: #c8000f;
  --muted: #666666;
  --faint: #b5b5b5;
  --line: #e4e4e4;
  --wash: #f3f3f1;
  --song: "Songti SC", "STSong", "Source Han Serif SC", "Noto Serif CJK SC", "Noto Serif SC", "SimSun", serif;
  --hei: system-ui, -apple-system, "PingFang SC", "Hiragino Sans GB", "Source Han Sans SC", "Noto Sans CJK SC", "Microsoft YaHei", sans-serif;
  --fang: "STFangsong", "FangSong", "FangSong_GB2312", var(--song);
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --paper: #151515;
    --ink: #e6e6e6;
    --red: #f04a4a;
    --muted: #a3a3a3;
    --faint: #555555;
    --line: #2e2e2e;
    --wash: #1f1f1f;
    color-scheme: dark;
  }
}

*, *::before, *::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 1rem/1.6 var(--hei);
}

a { color: var(--red); }
img { max-width: 100%; }
[hidden] { display: none !important; }

:focus-visible { outline: 2px solid var(--red); outline-offset: 2px; }

.skip {
  position: absolute;
  left: 1rem;
  top: -3rem;
  background: var(--ink);
  color: var(--paper);
  padding: .5rem 1rem;
  z-index: 10;
}
.skip:focus { top: 1rem; }

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

/* Masthead ---------------------------------------------------------------- */

.mast {
  max-width: 72rem;
  margin: 0 auto;
  padding: clamp(1.75rem, 5vw, 3.25rem) 1rem 0;
  text-align: center;
}

.mast-title {
  display: inline-block;
  color: var(--red);
  font-family: var(--song);
  font-weight: 900;
  font-size: clamp(2.25rem, 8vw, 4.75rem);
  line-height: 1.15;
  letter-spacing: .14em;
  margin-right: -.14em; /* keep the spaced title optically centred */
  text-decoration: none;
}

.mast-no {
  margin: clamp(.75rem, 2vw, 1.25rem) 0 .55rem;
  font-family: var(--fang);
  font-size: 1rem;
  letter-spacing: .04em;
}

.mast-rule {
  display: flex;
  align-items: center;
  gap: .6rem;
  color: var(--red);
}
.mast-rule::before,
.mast-rule::after {
  content: "";
  flex: 1;
  height: 2px;
  background: currentColor;
}
[data-page="home"] .mast-rule::before,
[data-page="home"] .mast-rule::after { animation: rule-draw .7s cubic-bezier(.2, .7, .2, 1) both; }
.mast-rule::before { transform-origin: right center; }
.mast-rule::after { transform-origin: left center; }
.mast-star { flex: none; width: 1.3rem; height: 1.3rem; fill: currentColor; }

@keyframes rule-draw { from { transform: scaleX(0); } }

@media (prefers-reduced-motion: reduce) {
  [data-page="home"] .mast-rule::before, [data-page="home"] .mast-rule::after { animation: none; }
}

.nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: .2rem 1.6rem;
  padding-top: .9rem;
}
.nav a {
  color: var(--ink);
  text-decoration: none;
  padding: .2rem 0;
  border-bottom: 2px solid transparent;
}
.nav a:hover { color: var(--red); }
.nav a[aria-current="page"] { color: var(--red); border-bottom-color: var(--red); }

/* Page frame -------------------------------------------------------------- */

.main {
  max-width: 72rem;
  margin: 0 auto;
  padding: 0 1rem 3rem;
}

.lede { margin: 1.6rem 0 0; }
.lede p { margin: 0 0 .35rem; font-family: var(--song); font-size: 1rem; line-height: 1.7; }
.lede .lede-meta {
  display: flex;
  flex-wrap: wrap;
  gap: .25rem 1.25rem;
  font-family: var(--hei);
  font-size: .875rem;
  color: var(--muted);
}

.page-title {
  margin: 2.5rem 0 .4rem;
  font-family: var(--song);
  font-weight: 700;
  font-size: clamp(1.6rem, 4vw, 2.25rem);
  line-height: 1.3;
  text-wrap: balance;
}
.page-title .dow, .day-head .dow {
  font-family: var(--hei);
  font-weight: 400;
  font-size: .5em;
  color: var(--muted);
  margin-left: .35rem;
}
.rel { font: 400 .5em var(--hei); color: var(--red); margin-left: .5rem; }
.rel:empty { display: none; }
.page-note { color: var(--muted); margin: 0 0 1.5rem; }
.empty { color: var(--muted); padding: 3rem 0; }

.story-meta, .day-count, .lede-meta, .filter, .focus-head p, .topic-strip, .day-topics { font-variant-numeric: tabular-nums; }

/* Topic links ------------------------------------------------------------- */

.topic-strip, .day-topics, .foot-topics {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: .2rem .9rem;
  margin: .6rem 0 0;
  font-size: .875rem;
  color: var(--muted);
}
.lede .topic-strip { font-family: var(--hei); }
.topic-strip span, .day-topics span { white-space: nowrap; } /* a topic and its count wrap together */
.topic-strip a, .day-topics a {
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  margin-right: .2rem;
}
.topic-strip a:hover, .day-topics a:hover { color: var(--red); border-color: var(--red); }
.day-topics { margin: -.9rem 0 1.25rem; }

/* Source filter: text tabs like the nav ----------------------------------- */

html:not(.js) [data-filter] { display: none; }
.filter {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: .1rem 1.1rem;
  margin: 1.5rem 0 .5rem;
}
.filter-label { font-size: .875rem; color: var(--muted); }
.filter button {
  font: inherit;
  font-size: .9375rem;
  color: var(--ink);
  background: none;
  border: 0;
  border-bottom: 2px solid transparent;
  border-radius: 0;
  padding: .3rem 0;
  cursor: pointer;
}
.filter button span { color: var(--muted); margin-left: .25rem; font-size: .8125rem; }
.filter button:hover { color: var(--red); }
.filter button[aria-pressed="true"] { color: var(--red); border-bottom-color: var(--red); }

/* 今日焦点 ----------------------------------------------------------------- */

.focus { margin: 1.75rem 0 2.75rem; }
.focus-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.1rem;
  padding-bottom: .45rem;
  border-bottom: 2px solid var(--ink);
}
.focus-head h2 { margin: 0; font: 900 1.125rem var(--song); letter-spacing: .3em; color: var(--red); }
.focus-head p { margin: 0; font-size: .875rem; color: var(--muted); white-space: nowrap; }
.focus-body { display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); gap: 1rem 2rem; align-items: start; }
.focus-body.no-media { grid-template-columns: minmax(0, 1fr); max-width: 46rem; }
.focus-media { display: block; }
.focus-title { margin: 0 0 .45rem; font: 700 clamp(1.375rem, 2.4vw, 1.875rem)/1.35 var(--song); text-wrap: balance; }
.focus-title a { color: inherit; text-decoration: none; }
.focus-title a:hover { color: var(--red); }
.focus-list { list-style: none; margin: 1rem 0 0; padding: 0; border-top: 1px solid var(--line); }
.focus-list li { border-bottom: 1px solid var(--line); }
.focus-list a {
  display: grid;
  grid-template-columns: 6.5rem minmax(0, 1fr);
  column-gap: .75rem;
  padding: .5rem 0;
  color: var(--ink);
  text-decoration: none;
  font-size: .9375rem;
  line-height: 1.55;
}
.focus-list a:hover .focus-t { color: var(--red); }
.focus-src { color: var(--muted); font-size: .8125rem; line-height: 1.8; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.focus-t { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.focus-more > summary { cursor: pointer; padding: .55rem 0 0; font-size: .875rem; color: var(--red); list-style: none; }
.focus-more > summary::-webkit-details-marker { display: none; }
/* The summary stays when open, so keyboard focus is not lost and the list can be closed again. */
.focus-more[open] .when-closed, .focus-more:not([open]) .when-open { display: none; }
.focus-more[open] > summary { padding-bottom: .55rem; }
.focus-more .focus-list { margin-top: 0; }

/* 【AI 综述】, set like the 【摘要】 paragraph of a 公文: a 黑体 label opening 仿宋 text. */
.focus-ai { margin: .9rem 0 0; }
.ai-text { margin: 0; font: 1.0625rem/1.9 var(--fang); text-align: justify; }
.ai-tag { font: 700 1em/1 var(--hei); }
.ai-note { margin: .35rem 0 0; font-size: .75rem; line-height: 1.6; color: var(--muted); }
.focus-coverage { margin-top: .4rem; }
.focus-coverage .focus-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); column-gap: 2rem; }

/* Day sections and the story grid ---------------------------------------- */

.day-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  margin: 2.5rem 0 1.1rem;
  padding-bottom: .45rem;
  border-bottom: 1px solid var(--ink);
}
.day-head h2 {
  margin: 0;
  font-family: var(--song);
  font-weight: 700;
  font-size: 1.5rem;
  line-height: 1.3;
}
.day-head h2 a { color: inherit; text-decoration: none; }
.day-head h2 a:hover { color: var(--red); }
.day-count { margin: 0; font-size: .875rem; color: var(--muted); white-space: nowrap; }

.grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 15.5rem), 1fr));
  gap: 1.9rem 1.25rem;
}

.story { min-width: 0; scroll-margin-top: 1rem; }
.story-link { display: block; color: inherit; text-decoration: none; }
.story-link:visited .story-title { color: var(--muted); }
.story-link:hover .story-title,
.story-title a:hover { color: var(--red); }
.story:target .story-title { text-decoration: underline 2px var(--red); text-underline-offset: .25em; }

.thumb {
  position: relative;
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--wash);
  border-radius: 2px;
}
.thumb::after {
  content: attr(data-label);
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  padding: 1rem;
  font-family: var(--song);
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: .12em;
  color: var(--faint);
  text-align: center;
}
.thumb img,
.thumb iframe,
.thumb video {
  position: absolute;
  inset: 0;
  z-index: 1;
  width: 100%;
  height: 100%;
  object-fit: cover;
  border: 0;
}
.thumb video { object-fit: contain; background: #000; }

/* No picture left: a miniature red-header card instead of a grey box.
   Browsers without :has() keep the plain label. */
.thumb:has(img)::after { content: none; }
.thumb:not(:has(img, iframe, video)) { background: var(--paper); box-shadow: inset 0 0 0 1px var(--line); }
.thumb:not(:has(img, iframe, video))::after {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 0 14% 1.4rem;
  color: var(--ink);
  font-size: clamp(.95rem, 1.6vw, 1.15rem);
  letter-spacing: .18em;
  background:
    linear-gradient(var(--red), var(--red)) 50% calc(50% + .9rem) / 38% 2px no-repeat,
    linear-gradient(var(--line), var(--line)) 50% calc(50% + 1.6rem) / 58% 2px no-repeat,
    linear-gradient(var(--line), var(--line)) 50% calc(50% + 2.2rem) / 58% 2px no-repeat;
}

.story-title {
  margin: .6rem 0 .3rem;
  font-family: var(--song);
  font-weight: 700;
  font-size: 1.0625rem;
  line-height: 1.5;
  overflow-wrap: anywhere;
  text-wrap: pretty;
}
.story-title a { color: inherit; text-decoration: none; }

.story-meta {
  display: flex;
  flex-wrap: wrap;
  gap: .1rem .8rem;
  margin: 0;
  font-size: .8125rem;
  color: var(--muted);
}
.story-meta a { color: var(--red); }

.also { display: flex; flex-wrap: wrap; gap: .1rem .65rem; margin: .3rem 0 0; font-size: .8125rem; color: var(--muted); }
.also a { color: var(--muted); text-underline-offset: .2em; }
.also a:hover { color: var(--red); }

/* Videos ------------------------------------------------------------------ */

.vthumb { padding: 0; border: 0; cursor: pointer; font: inherit; }
.play {
  position: absolute;
  z-index: 2;
  left: 50%;
  top: 50%;
  width: 3.4rem;
  height: 2.3rem;
  transform: translate(-50%, -50%);
  background: var(--red);
  border-radius: .55rem;
}
.play::before {
  content: "";
  position: absolute;
  left: 54%;
  top: 50%;
  transform: translate(-50%, -50%);
  border-style: solid;
  border-width: .5rem 0 .5rem .85rem;
  border-color: transparent transparent transparent #fff;
}
.vthumb:hover .play, .vthumb:focus-visible .play { background: #e3000f; }

.shelf-section .section-note { color: var(--muted); margin: -.4rem 0 1.1rem; font-size: .9375rem; }

/* Books ------------------------------------------------------------------- */

.books {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 30rem), 1fr));
  gap: 0 3rem;
}
.book { display: grid; grid-template-columns: 7rem minmax(0, 1fr); gap: 0 1.25rem; padding: 1.25rem 0; border-bottom: 1px solid var(--line); }
.book .story-title { margin: 0 0 .3rem; font-size: 1.25rem; }
.cover-link { display: block; }
.cover {
  position: relative;
  display: block;
  aspect-ratio: 2 / 3;
  overflow: hidden;
  background: var(--paper);
  box-shadow: inset 0 0 0 1px var(--line);
  border-radius: 2px;
}
.cover::after {
  content: attr(data-label);
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  padding: .75rem;
  font-family: var(--song);
  font-weight: 700;
  font-size: .9rem;
  color: var(--faint);
  text-align: center;
}
.cover:not(:has(img))::after { content: "《" attr(data-label) "》"; color: var(--ink); }
.cover img { position: absolute; inset: 0; z-index: 1; width: 100%; height: 100%; object-fit: contain; }
.book-note { margin: .35rem 0; font-size: .9375rem; line-height: 1.7; }
.book-licence { margin: .2rem 0; font-size: .8125rem; color: var(--muted); }
.book-actions { display: flex; flex-wrap: wrap; gap: .2rem 1rem; margin: .35rem 0 0; font-size: .875rem; }
.book-actions span { color: var(--muted); }

/* Topics ------------------------------------------------------------------ */

.topic-sub { margin: 0 0 1rem; font-family: var(--fang); color: var(--muted); }
.topic-index { list-style: none; margin: 0; padding: 0; max-width: 46rem; }
.topic-index li { padding: 1rem 0; border-bottom: 1px solid var(--line); }
.topic-index a { font: 700 1.25rem var(--song); color: var(--ink); text-decoration: none; }
.topic-index a:hover { color: var(--red); }
.topic-index span { margin-left: .75rem; font-size: .875rem; color: var(--muted); }
.topic-index p { margin: .3rem 0 0; color: var(--muted); font-size: .9375rem; }
.older h2 { margin: 2.25rem 0 .5rem; font: 700 1.1rem var(--song); }
.headlines { list-style: none; margin: 0; padding: 0; columns: 2 22rem; column-gap: 2.5rem; }
.headlines li { break-inside: avoid; padding: .45rem 0; border-bottom: 1px solid var(--line); font-size: .9375rem; }
.headlines a:first-child { color: var(--ink); text-decoration: none; }
.headlines a:first-child:hover { color: var(--red); }
.headlines span, .headlines a:last-child { margin-left: .5rem; font-size: .8125rem; color: var(--muted); white-space: nowrap; }
.related { margin: 2rem 0 0; font-size: .9375rem; }
.topic-rest { margin-top: 1.5rem; }

/* Archive calendar -------------------------------------------------------- */

.year h2 {
  margin: 2.5rem 0 1rem;
  padding-bottom: .45rem;
  border-bottom: 1px solid var(--ink);
  font-family: var(--song);
  font-size: 1.6rem;
}
.months {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 15rem), 1fr));
  gap: 1.75rem 2rem;
}
.month { margin: 0; }
.month figcaption { font-family: var(--song); font-weight: 700; font-size: 1.1rem; margin-bottom: .35rem; }
.month figcaption span { font-family: var(--hei); font-weight: 400; font-size: .8125rem; color: var(--muted); margin-left: .5rem; }
.cal { width: 100%; border-collapse: collapse; table-layout: fixed; font-size: .875rem; text-align: center; }
.cal th { font-weight: 400; color: var(--muted); padding: .2rem 0; }
.cal td { padding: 2px; }
.cal td a, .cal td span { display: block; padding: .32rem 0; border-radius: 2px; }
.cal td span { color: var(--muted); } /* days without stories: still 4.5:1 */
/* Bold, so a day with stories differs from an empty one by more than its colour and tint. */
.cal td a { color: var(--ink); font-weight: 700; text-decoration: none; }
.cal td a:hover { outline: 1px solid var(--ink); }
.cal .lv1 { background: color-mix(in srgb, var(--red) 14%, transparent); }
.cal .lv2 { background: color-mix(in srgb, var(--red) 32%, transparent); }
.cal .lv3 { background: color-mix(in srgb, var(--red) 80%, transparent); color: #fff; }
.cal .lv4 { background: var(--red); color: #fff; }
/* Keep the day numbers at 4.5:1 or better on the brighter dark-mode red. */
@media (prefers-color-scheme: dark) {
  .cal .lv3 { background: color-mix(in srgb, var(--red) 62%, transparent); color: var(--ink); }
  .cal .lv4 { color: var(--paper); }
}

/* Search ------------------------------------------------------------------ */

.search { max-width: 36rem; margin-bottom: .75rem; }
.search label { display: block; font-size: .875rem; color: var(--muted); margin-bottom: .4rem; }
.search input {
  width: 100%;
  font: inherit;
  font-size: 1.125rem;
  color: var(--ink);
  background: var(--paper);
  border: 1px solid var(--ink);
  border-radius: 2px;
  padding: .65rem .85rem;
}
.results { list-style: none; margin: 1rem 0 0; padding: 0; max-width: 46rem; }
.results li { padding: .85rem 0; border-bottom: 1px solid var(--line); }
.results a.r-title { font-family: var(--song); font-weight: 700; font-size: 1.0625rem; color: var(--ink); text-decoration: none; }
.results a.r-title:hover { color: var(--red); }
.results .story-meta { margin-top: .25rem; }
.notice { margin: .2rem 0 .4rem; font: 1.125rem var(--fang); }

/* About, privacy ---------------------------------------------------------- */

.prose { max-width: 42rem; }
.prose p { line-height: 1.85; margin: 0 0 1rem; }
.prose h2 { font-family: var(--song); font-size: 1.3rem; margin: 2.25rem 0 .6rem; }
.prose h3 { margin: 1.5rem 0 .4rem; font: 700 1.05rem var(--song); }
.corrections { margin: 0 0 1rem; padding-left: 1.2rem; }
.table-wrap { overflow-x: auto; margin-bottom: .75rem; }
.sources { width: 100%; min-width: 34rem; border-collapse: collapse; font-size: .9375rem; } /* phones scroll it rather than squeeze the text */
.sources th, .sources td { text-align: left; padding: .5rem 1rem .5rem 0; border-bottom: 1px solid var(--line); vertical-align: top; }
.sources th { color: var(--muted); font-weight: 400; white-space: nowrap; }
.sources td:nth-child(n+3) { white-space: nowrap; }
.sources td:nth-child(4), .sources th:nth-child(4) { text-align: right; }

/* Sharing, paging --------------------------------------------------------- */

.share { display: flex; flex-wrap: wrap; align-items: baseline; gap: .25rem 1rem; margin: 2.5rem 0 0; font-size: .875rem; color: var(--muted); }
.share a { color: var(--muted); }
.share a:hover { color: var(--red); }
.share button { font: inherit; color: var(--ink); background: none; border: 0; border-bottom: 1px solid var(--line); padding: 0; cursor: pointer; }

.pager { display: flex; justify-content: space-between; gap: 1rem; margin: 2rem 0 0; }
.pager a { display: flex; flex-direction: column; text-decoration: none; }
.pager a[rel="next"] { text-align: right; }
.pager a span { font-size: .8125rem; color: var(--muted); }
.pager a:hover { text-decoration: underline; }

.more { margin: 3rem 0 0; text-align: center; }
.more a {
  display: inline-block;
  padding: .6rem 1.4rem;
  border: 1px solid var(--red);
  border-radius: 2px;
  text-decoration: none;
}
.more a:hover { background: var(--red); color: var(--paper); }

/* Footer: the 版记 block that closes an official document ----------------- */

.foot {
  max-width: 72rem;
  margin: 0 auto;
  padding: 1.25rem 1rem 3rem;
  font-size: .8125rem;
  color: var(--muted);
}
.foot p { margin: 0 0 .35rem; }
.foot a { color: var(--muted); }
.foot a:hover { color: var(--red); }
.banji { margin: 0 0 1rem; border-top: 2px solid var(--ink); border-bottom: 2px solid var(--ink); font: 1rem var(--fang); color: var(--ink); }
.foot .banji p { margin: 0; padding: .4rem 1em; }
.banji .cc { border-bottom: 1px solid var(--ink); }
.banji .issue { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 0 1rem; }
.foot-links { display: flex; flex-wrap: wrap; gap: .25rem 1.25rem; }
.foot-topics { margin-top: .5rem; font-size: .8125rem; }

/* Tablets: the column beside the focus picture is too narrow for one-line titles or
   the AI overview, so only the headline stays beside the picture; the related list,
   or the overview, runs below it at full width, as the coverage list does. */
@media (min-width: 40.0625rem) and (max-width: 64rem) {
  .focus-media + div { display: contents; }
  .focus-body:not(.no-media) { grid-template-rows: auto 1fr; row-gap: 0; }
  .focus-media { grid-row: 1 / 3; }
  .focus-media + div > :is(.focus-title, .story-meta) { grid-column: 2; }
  .focus-media + div > :is(.focus-list, .focus-more, .focus-ai) { grid-column: 1 / -1; }
  .focus-coverage .focus-list { grid-template-columns: minmax(0, 1fr); }
}

/* Phones: news becomes a compact list with the thumbnail beside the title,
   and the source filter scrolls sideways instead of wrapping. */
@media (max-width: 40rem) {
  .grid:has(.story-link) { gap: 1.15rem; }
  .story-link {
    display: grid;
    grid-template-columns: 7.25rem 1fr;
    grid-template-areas: "thumb title" "thumb meta";
    grid-template-rows: auto 1fr;
    column-gap: .85rem;
  }
  .story-link .thumb { grid-area: thumb; aspect-ratio: 4 / 3; }
  .story-link .thumb::after { font-size: .8rem; letter-spacing: .05em; padding: .4rem; }
  .story-link .thumb:not(:has(img))::after {
    font-size: .8rem;
    letter-spacing: .08em;
    padding: 0 8% 1rem;
    background:
      linear-gradient(var(--red), var(--red)) 50% calc(50% + .6rem) / 44% 2px no-repeat,
      linear-gradient(var(--line), var(--line)) 50% calc(50% + 1.1rem) / 64% 2px no-repeat;
  }
  .story-link .story-title { grid-area: title; margin: 0 0 .3rem; font-size: 1rem; }
  .story-link .story-meta { grid-area: meta; align-self: start; }
  .story > .also { margin-left: calc(7.25rem + .85rem); }
  .filter {
    flex-wrap: nowrap;
    overflow-x: auto;
    margin-inline: -1rem;
    padding: .3rem 1rem .4rem; /* room for the focus ring, which overflow would clip */
    scrollbar-width: none;
    /* Chrome scrolls a focused button into view only when none of it is in the scrollport,
       so a half-hidden one stayed put. Counting only the middle fifth as the scrollport
       centres any button outside it; a button that reaches it is fully visible. */
    scroll-padding-inline: 40%;
  }
  .filter::-webkit-scrollbar { display: none; }
  .filter button, .filter-label { flex: none; }
  .day-head h2 { font-size: 1.3rem; }
  .nav { gap: .2rem 1.1rem; }
  .focus-body, .focus-list a, .focus-coverage .focus-list { grid-template-columns: minmax(0, 1fr); }
  .focus-media { margin-inline: -1rem; }
  .focus-media .thumb { border-radius: 0; }
  .focus-src { line-height: 1.5; }
  .focus-t { white-space: normal; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; }
  .book { grid-template-columns: 5.5rem minmax(0, 1fr); }
}

/* Windows high-contrast mode drops backgrounds; keep state visible with borders. */
@media (forced-colors: active) {
  .nav a { border-bottom-color: Canvas; }
  .nav a[aria-current="page"] { border-bottom-color: Highlight; }
  .filter button { border-bottom-color: Canvas; }
  .filter button[aria-pressed="true"] { border-bottom-color: Highlight; text-decoration: underline; }
  .mast-rule::before, .mast-rule::after { background: CanvasText; }
}

/* Print: an A4 公文-style list of headlines with their source URLs. */
@media print {
  @page { size: A4; margin: 37mm 26mm 35mm 28mm; }
  :root { --paper: #fff; --ink: #000; --red: #c8000f; --muted: #444; --line: #999; }
  .skip, .nav, .filter, .pager, .more, .thumb, .focus-media, .focus-more, .also, .share, .foot-links,
  .topic-strip, .day-topics, .foot-topics, .rel { display: none !important; }
  /* A border, because printing drops backgrounds unless the reader asks for them. */
  .mast-rule::before, .mast-rule::after { animation: none !important; background: none; border-top: 2px solid; }
  .mast, .main, .foot { max-width: none; padding: 0; }
  .grid, .focus-body { display: block; }
  .story-link { display: block !important; padding: .35em 0; border-bottom: .5pt solid #bbb; }
  .story-title { font-size: 11pt; margin: 0; }
  .story-link::after { content: attr(href); display: block; font: 7.5pt/1.35 var(--hei); color: #555; overflow-wrap: anywhere; }
  .story-link[data-url]::after { content: attr(data-url); } /* the address with its Chinese decoded */
  .story, .foot { break-inside: avoid; }
  .day-head { break-after: avoid; }
}