:root {
  --navy: #182840;
  --navy-deep: #102036;
  --lime: #c6f24e;
  --teal: #287876;
  --paper: #f4f5f0;
  --white: #fffefa;
  --ink: #1b2a3d;
  --muted: #566472;
  --line: #d8dedb;
  --serif: "Noto Serif TC", "Songti TC", "PMingLiU", serif;
  --sans: "Noto Sans TC", "Microsoft JhengHei", sans-serif;
  color-scheme: light;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 82px; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.75;
}
a { color: inherit; }
a:focus-visible, summary:focus-visible {
  outline: 3px solid var(--teal);
  outline-offset: 4px;
  border-radius: 2px;
}
.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(255, 254, 250, .97);
  border-bottom: 1px solid var(--line);
}
.topbar__inner {
  min-height: 70px;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  color: var(--navy);
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
  letter-spacing: .01em;
}
.brand b { font-weight: 500; }
.brand-mark {
  width: 34px;
  height: 34px;
  display: inline-grid;
  place-items: center;
  border-radius: 9px;
  background: var(--navy);
  color: var(--lime);
  font-family: var(--serif);
  font-size: 20px;
  font-weight: 800;
}
.topbar nav {
  display: flex;
  align-items: center;
  gap: clamp(14px, 3vw, 34px);
  font-size: 13px;
}
.topbar nav a { color: var(--muted); text-decoration: none; }
.topbar nav a:hover { color: var(--navy); }
.topbar nav .hub-link {
  color: var(--navy);
  border-bottom: 2px solid var(--lime);
  padding: 4px 0;
  font-weight: 700;
}

.hero {
  color: var(--white);
  background-color: var(--navy);
  background-image: linear-gradient(rgba(255,255,255,.035) 1px, transparent 1px);
  background-size: 100% 44px;
}
.hero__inner {
  max-width: 1200px;
  min-height: 475px;
  margin: 0 auto;
  padding: 78px 28px 82px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 270px;
  align-items: center;
  gap: 72px;
}
.hero__copy { max-width: 760px; }
.hero-kicker, .section-kicker {
  margin: 0 0 18px;
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .04em;
}
.kicker-dot { width: 9px; height: 9px; border-radius: 50%; background: var(--lime); }
.hero h1 {
  margin: 0;
  max-width: 760px;
  font-family: var(--serif);
  font-size: clamp(38px, 5.4vw, 67px);
  font-weight: 700;
  line-height: 1.35;
  letter-spacing: -.025em;
}
.hero-lede {
  max-width: 700px;
  margin: 24px 0 0;
  color: #d6dce4;
  font-size: 17px;
  line-height: 1.95;
}
.hero-actions { margin-top: 32px; display: flex; align-items: center; gap: 25px; flex-wrap: wrap; }
.button {
  min-height: 46px;
  padding: 10px 20px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid transparent;
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
}
.button--bright { background: var(--lime); color: var(--navy-deep); }
.button--bright:hover { background: #d4fa70; }
.text-link { color: var(--white); font-size: 14px; text-decoration-thickness: 1px; text-underline-offset: 5px; }
.hero-record {
  min-height: 282px;
  padding: 23px 0 20px 27px;
  border-left: 2px solid var(--lime);
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.record-label { color: #d7dfe7; font-size: 13px; }
.record-number {
  margin: 2px 0 -5px;
  color: var(--lime);
  font-family: var(--serif);
  font-size: clamp(78px, 9vw, 112px);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -.05em;
}
.record-number span { margin-left: 9px; font-family: var(--sans); font-size: 19px; letter-spacing: 0; }
.record-rule { width: 100%; height: 1px; margin: 9px 0 14px; background: rgba(255,255,255,.28); }
.hero-record p { margin: 0; color: #d9e0e7; font-size: 13px; line-height: 1.9; }
.record-stamp {
  width: fit-content;
  margin-top: 19px;
  padding: 4px 9px;
  border: 1px solid rgba(198, 242, 78, .7);
  color: var(--lime);
  font-size: 11px;
  letter-spacing: .05em;
}
.editor-note {
  max-width: 1144px;
  margin: 0 auto;
  padding: 25px 28px;
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr);
  align-items: start;
  gap: 15px;
  border-bottom: 1px solid var(--line);
}
.note-mark {
  width: 27px;
  height: 27px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--lime);
  color: var(--navy);
  font-family: var(--serif);
  font-weight: 800;
}
.editor-note p { margin: 0; color: var(--muted); font-size: 14px; }
.editor-note strong { color: var(--navy); }

.topics { max-width: 1144px; margin: 0 auto; padding: 78px 28px 88px; }
.section-heading {
  margin-bottom: 52px;
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 28px;
}
.section-heading .section-kicker, .scope .section-kicker { color: var(--teal); }
.section-heading h2, .scope h2 {
  margin: 0;
  color: var(--navy);
  font-family: var(--serif);
  font-size: clamp(28px, 3vw, 38px);
  line-height: 1.45;
}
.section-heading > p { max-width: 330px; margin: 0 0 4px; color: var(--muted); font-size: 14px; }
.topic-group { margin-top: 48px; }
.group-heading {
  padding: 0 0 14px;
  display: flex;
  align-items: baseline;
  gap: 20px;
  border-bottom: 1px solid var(--navy);
}
.group-heading h2 {
  margin: 0;
  color: var(--navy);
  font-family: var(--serif);
  font-size: 22px;
}
.group-heading p { margin: 0; color: var(--muted); font-size: 13px; }
.topic-row {
  min-height: 145px;
  padding: 23px 14px 23px 0;
  display: grid;
  grid-template-columns: 54px minmax(0, 1fr) 112px;
  align-items: center;
  gap: 18px;
  border-bottom: 1px solid var(--line);
}
.topic-row:hover { background: rgba(255, 254, 250, .7); }
.topic-index {
  align-self: start;
  padding-top: 2px;
  color: var(--teal);
  font-family: var(--serif);
  font-size: 18px;
  font-weight: 700;
}
.topic-source { color: var(--teal); font-size: 12px; font-weight: 700; }
.topic-copy h3 { margin: 3px 0 4px; color: var(--navy); font-family: var(--serif); font-size: 20px; line-height: 1.55; }
.topic-copy h3 a { text-decoration: none; text-underline-offset: 4px; }
.topic-copy h3 a:hover { text-decoration: underline; }
.topic-copy p { max-width: 780px; margin: 4px 0 0; color: var(--muted); font-size: 14px; line-height: 1.8; }
.topic-open { color: var(--navy); font-size: 12px; font-weight: 700; text-decoration: none; white-space: nowrap; }
.topic-open span { color: var(--teal); }
.topic-open:hover { text-decoration: underline; text-underline-offset: 4px; }

.scope {
  padding: 76px max(28px, calc((100vw - 1144px) / 2));
  display: grid;
  grid-template-columns: minmax(220px, .8fr) minmax(0, 1.2fr);
  gap: clamp(40px, 8vw, 110px);
  color: var(--white);
  background: var(--navy);
}
.scope .section-kicker { color: var(--lime); }
.scope h2 { color: var(--white); }
.scope-copy > p:not(.section-kicker) { color: #d4dce4; font-size: 14px; }
.scope-disclaimer { padding-left: 14px; border-left: 2px solid var(--lime); }
.coverage-table { align-self: center; }
.table-caption { margin-bottom: 12px; color: var(--lime); font-size: 13px; font-weight: 700; }
.coverage-table table { width: 100%; border-collapse: collapse; background: rgba(255,255,255,.04); font-size: 13px; }
.coverage-table th, .coverage-table td { padding: 8px 12px; border-bottom: 1px solid rgba(255,255,255,.15); text-align: left; }
.coverage-table th { color: #e7ebef; font-weight: 500; }
.coverage-table td { width: 70px; color: var(--lime); text-align: right; font-variant-numeric: tabular-nums; }
.coverage-table tfoot th, .coverage-table tfoot td { border-top: 1px solid var(--lime); border-bottom: 0; font-weight: 700; }
.source-link { color: var(--lime); font-size: 14px; font-weight: 700; text-underline-offset: 4px; }
.legacy-reading {
  max-width: 1144px;
  margin: 0 auto 80px;
  padding: 34px 38px;
  display: grid;
  grid-template-columns: minmax(230px, .7fr) minmax(0, 1.3fr);
  gap: 50px;
  border-top: 1px solid var(--navy);
  border-bottom: 1px solid var(--line);
  background: #eaede6;
}
.legacy-reading .section-kicker { color: var(--teal); }
.legacy-reading h2 { margin: 0; color: var(--navy); font-family: var(--serif); font-size: 23px; line-height: 1.5; }
.legacy-reading p:not(.section-kicker) { margin: 10px 0 0; color: var(--muted); font-size: 13px; }
.legacy-links { display: grid; }
.legacy-links a {
  padding: 12px 0;
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 18px;
  border-bottom: 1px solid #ccd4cd;
  color: var(--navy);
  font-family: var(--serif);
  font-size: 15px;
  text-decoration: none;
}
.legacy-links a:last-child { border-bottom: 0; }
.legacy-links a:hover { color: var(--teal); }
.legacy-links span { flex: 0 0 auto; color: var(--teal); font-family: var(--sans); font-size: 11px; }

.sources-page { max-width: 1060px; min-height: 70vh; margin: 0 auto; padding: 42px 28px 85px; }
.source-back { color: var(--teal); }
.sources-page > .section-kicker { margin: 12px 0 6px; color: var(--teal); }
.sources-page h1 { margin: 0; color: var(--navy); font-family: var(--serif); font-size: clamp(34px, 5vw, 52px); line-height: 1.4; }
.sources-intro { max-width: 720px; margin: 12px 0 28px; color: var(--muted); font-size: 14px; }
.source-search-label { display: block; margin: 0 0 7px; color: var(--navy); font-size: 13px; font-weight: 700; }
#source-search {
  width: min(100%, 520px);
  min-height: 46px;
  padding: 10px 13px;
  border: 1px solid #aab7b5;
  border-radius: 0;
  background: var(--white);
  color: var(--ink);
  font: inherit;
}
#source-search:focus-visible { outline: 3px solid var(--teal); outline-offset: 2px; }
.source-count { margin: 12px 0 9px; color: var(--teal); font-size: 12px; font-weight: 700; }
.source-table-wrap { max-height: 68vh; overflow: auto; border: 1px solid var(--line); background: var(--white); }
.source-table { width: 100%; border-collapse: collapse; font-size: 13px; line-height: 1.6; }
.source-table th, .source-table td { padding: 8px 11px; border-bottom: 1px solid var(--line); text-align: left; }
.source-table th { position: sticky; top: 0; z-index: 1; background: var(--navy); color: var(--white); font-weight: 600; }
.source-table td:first-child { color: var(--teal); font-family: ui-monospace, Consolas, monospace; }
.source-table tr[hidden] { display: none; }
.source-table tbody tr:nth-child(even) { background: #f0f2ec; }

.article-hero { padding: 58px 28px 62px; color: var(--white); background: var(--navy); }
.article-hero__inner { max-width: 990px; margin: 0 auto; }
.back-link { display: inline-block; margin-bottom: 24px; color: #dfe5eb; font-size: 13px; text-decoration: none; }
.back-link:hover { color: var(--lime); }
.article-kicker { margin: 0 0 12px; color: var(--lime); font-size: 13px; font-weight: 700; }
.article-hero h1 {
  max-width: 900px;
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(33px, 4.2vw, 50px);
  line-height: 1.5;
}
.article-deck { max-width: 790px; margin: 16px 0 0; color: #d4dce4; font-size: 16px; line-height: 1.9; }
.article-meta { margin: 17px 0 0; color: #aebbc7; font-size: 12px; }
.article-layout {
  max-width: 1200px;
  margin: 0 auto;
  padding: 52px 28px 90px;
  display: grid;
  grid-template-columns: 220px minmax(0, 760px);
  justify-content: center;
  align-items: start;
  gap: 58px;
}
.article-toc { position: sticky; top: 93px; max-height: 75vh; overflow: auto; }
.article-toc details { padding-bottom: 17px; border-bottom: 1px solid var(--line); }
.article-toc summary { color: var(--navy); font-size: 13px; font-weight: 700; cursor: pointer; }
.article-toc nav { margin-top: 12px; }
.article-toc a { display: block; padding: 4px 0; color: var(--muted); font-size: 12px; line-height: 1.6; text-decoration: none; }
.article-toc a:hover { color: var(--teal); text-decoration: underline; }
.article-toc .toc-level-3 { padding-left: 12px; }
.article-content { min-width: 0; color: #273548; font-family: var(--serif); font-size: 17px; line-height: 2; overflow-wrap: anywhere; }
.article-content h1, .article-content h2, .article-content h3 { color: var(--navy); font-family: var(--serif); line-height: 1.6; }
.article-content h1 { font-size: 30px; }
.article-content h2 { margin: 2.5em 0 .65em; padding-top: .3em; border-top: 1px solid var(--line); font-size: 26px; }
.article-content h3 { margin: 1.8em 0 .55em; font-size: 20px; }
.article-content p { margin: 1.05em 0; }
.article-content blockquote { margin: 25px 0; padding: 15px 20px; border-left: 3px solid var(--lime); background: #e9eddf; color: #44515e; font-size: 15px; line-height: 1.9; }
.article-content blockquote p:first-child { margin-top: 0; }
.article-content blockquote p:last-child { margin-bottom: 0; }
.article-content ul, .article-content ol { padding-left: 1.45em; }
.article-content li { margin: .4em 0; padding-left: .15em; }
.article-content a { color: var(--teal); text-decoration-thickness: 1px; text-underline-offset: 3px; }
.article-content hr { margin: 2.4em 0; border: 0; border-top: 1px solid var(--line); }
.article-content code { padding: 2px 5px; background: #e7ebe6; font-family: ui-monospace, Consolas, monospace; font-size: .86em; }
.table-wrap { margin: 1.4em 0; overflow-x: auto; }
.article-content table { width: 100%; border-collapse: collapse; font-family: var(--sans); font-size: 13px; line-height: 1.65; }
.article-content th, .article-content td { min-width: 90px; padding: 9px 11px; border: 1px solid var(--line); text-align: left; vertical-align: top; }
.article-content th { background: #e7ebe6; color: var(--navy); font-weight: 700; }
.article-content tr:nth-child(even) td { background: rgba(255, 254, 250, .7); }
.article-related { margin-top: 52px; padding-top: 22px; border-top: 1px solid var(--navy); font-family: var(--sans); }
.article-related h2 { margin: 0 0 8px; padding: 0; border: 0; font-family: var(--sans); font-size: 16px; }
.article-related a { display: block; padding: 4px 0; font-size: 14px; }
.site-footer {
  min-height: 100px;
  padding: 24px max(28px, calc((100vw - 1144px) / 2));
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  border-top: 1px solid var(--line);
  background: var(--white);
  color: var(--muted);
  font-size: 12px;
}
.site-footer > div { display: flex; align-items: center; gap: 10px; color: var(--navy); font-weight: 700; }
.site-footer .brand-mark { width: 28px; height: 28px; font-size: 16px; }
.site-footer p { margin: 0; }
.site-footer a { color: var(--teal); text-decoration-thickness: 1px; text-underline-offset: 3px; }

@media (max-width: 800px) {
  .hero__inner { min-height: 0; grid-template-columns: minmax(0, 1fr) 205px; gap: 32px; padding-top: 58px; padding-bottom: 62px; }
  .hero-record { padding-left: 19px; }
  .topics { padding-top: 60px; }
  .legacy-reading { margin: 0 28px 62px; }
  .article-layout { grid-template-columns: minmax(0, 1fr); gap: 28px; }
  .article-toc { position: static; max-height: none; }
}
@media (max-width: 600px) {
  .topbar__inner { min-height: 62px; padding: 0 18px; }
  .topbar nav { gap: 13px; font-size: 11px; }
  .topbar nav a:nth-child(2) { display: none; }
  .brand { font-size: 12px; }
  .brand-mark { width: 30px; height: 30px; }
  .hero__inner { display: block; padding: 46px 20px 44px; }
  .hero h1 { font-size: clamp(34px, 10vw, 48px); }
  .hero-lede { font-size: 15px; }
  .hero-record { min-height: 0; margin-top: 36px; padding: 2px 0 2px 18px; }
  .record-number { font-size: 70px; }
  .record-stamp { margin-top: 12px; }
  .editor-note { padding: 20px; }
  .topics { padding: 52px 20px 62px; }
  .section-heading { display: block; margin-bottom: 34px; }
  .section-heading > p { margin-top: 12px; }
  .group-heading { display: block; }
  .group-heading p { margin-top: 5px; }
  .topic-row { grid-template-columns: 34px minmax(0, 1fr); gap: 12px; padding: 18px 0; }
  .topic-copy h3 { font-size: 18px; }
  .topic-open { grid-column: 2; }
  .scope { padding: 52px 20px; grid-template-columns: 1fr; gap: 30px; }
  .legacy-reading { margin: 0 20px 52px; padding: 25px 20px; grid-template-columns: 1fr; gap: 18px; }
  .legacy-links a { align-items: flex-start; flex-direction: column; gap: 3px; }
  .sources-page { padding: 32px 20px 60px; }
  .article-hero { padding: 38px 20px 44px; }
  .article-layout { padding: 28px 20px 58px; }
  .article-content { font-size: 16px; line-height: 1.9; }
  .article-content h2 { font-size: 23px; }
  .site-footer { padding: 20px; flex-wrap: wrap; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: .01ms !important; animation-duration: .01ms !important; }
}