:root {
  --taxonomy-paper: #f7f5ef;
  --taxonomy-surface: #ffffff;
  --taxonomy-ink: #17283b;
  --taxonomy-muted: #637184;
  --taxonomy-navy: #0a2342;
  --taxonomy-gold: #a9813f;
  --taxonomy-line: #d7dde3;
}

/* /contents/ topic navigation */
.taxonomy-hub {
  padding: 2.75rem 0 3rem;
  border-bottom: 1px solid var(--taxonomy-line);
}

.taxonomy-heading {
  display: grid;
  grid-template-columns: 150px minmax(0, 1fr);
  gap: 2rem;
  align-items: start;
}

.taxonomy-heading > p {
  margin: .35rem 0 0;
  color: var(--taxonomy-gold);
  font: 600 .72rem/1.5 Montserrat, sans-serif;
  letter-spacing: .16em;
}

.taxonomy-heading h2 {
  margin: 0;
  color: var(--taxonomy-navy);
  font-size: clamp(1.55rem, 3vw, 2.25rem);
  line-height: 1.45;
}

.taxonomy-heading span {
  display: block;
  margin-top: .55rem;
  color: var(--taxonomy-muted);
  font-size: .9rem;
  line-height: 1.8;
}

.taxonomy-category-list,
.taxonomy-overview-list,
.taxonomy-content-list,
.content-related ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.taxonomy-category-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
  margin-top: 1.8rem;
}

.taxonomy-category-list a {
  position: relative;
  display: flex;
  min-height: 190px;
  flex-direction: column;
  padding: 1.35rem;
  border: 1px solid var(--taxonomy-line);
  color: var(--taxonomy-ink);
  background: rgba(255, 255, 255, .62);
  text-decoration: none;
  transition: border-color .2s ease, transform .2s ease, background .2s ease;
}

.taxonomy-category-list a:hover {
  border-color: var(--taxonomy-navy);
  background: var(--taxonomy-surface);
  transform: translateY(-2px);
}

.taxonomy-category-list strong {
  color: var(--taxonomy-navy);
  font-size: 1.05rem;
  line-height: 1.65;
}

.taxonomy-category-list span {
  margin-top: .7rem;
  color: var(--taxonomy-muted);
  font-size: .78rem;
  line-height: 1.8;
}

.taxonomy-category-list small {
  margin-top: auto;
  padding-top: 1rem;
  color: var(--taxonomy-gold);
  font: 600 .72rem/1.4 Montserrat, sans-serif;
}

.taxonomy-all-link {
  display: inline-flex;
  gap: .55rem;
  margin-top: 1.25rem;
  color: var(--taxonomy-navy);
  font-size: .82rem;
  font-weight: 700;
  text-decoration: none;
}

/* Generated topic index and category pages */
.taxonomy-page {
  margin-top: 79px;
  padding-bottom: 6rem;
  color: var(--taxonomy-ink);
  background:
    linear-gradient(90deg, rgba(10, 35, 66, .025) 1px, transparent 1px) 0 0 / 96px 96px,
    var(--taxonomy-paper);
}

.taxonomy-shell {
  width: min(1080px, calc(100% - 48px));
  margin: 0 auto;
}

.taxonomy-breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: .65rem;
  align-items: center;
  padding: 1.35rem 0;
  border-bottom: 1px solid var(--taxonomy-line);
  color: var(--taxonomy-muted);
  font-size: .76rem;
}

.taxonomy-breadcrumb a {
  color: inherit;
  text-decoration: none;
}

.taxonomy-page-header {
  display: grid;
  grid-template-columns: 150px minmax(0, 1fr);
  padding: 4.75rem 0 4rem;
  border-bottom: 2px solid var(--taxonomy-navy);
}

.taxonomy-page-header > p {
  grid-column: 1;
  margin: .45rem 0 0;
  color: var(--taxonomy-gold);
  font: 600 .72rem/1.5 Montserrat, sans-serif;
  letter-spacing: .16em;
}

.taxonomy-page-header h1,
.taxonomy-page-header > span,
.taxonomy-page-header > small {
  grid-column: 2;
}

.taxonomy-page-header h1 {
  margin: 0;
  color: var(--taxonomy-navy);
  font-size: clamp(2.25rem, 6vw, 4.5rem);
  line-height: 1.25;
  letter-spacing: -.045em;
}

.taxonomy-page-header > span {
  max-width: 680px;
  margin-top: 1.25rem;
  color: var(--taxonomy-muted);
  line-height: 2;
}

.taxonomy-page-header > small {
  margin-top: .9rem;
  color: var(--taxonomy-gold);
  font-weight: 700;
}

.taxonomy-overview-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
  padding: 2.5rem 0;
}

.taxonomy-overview-list > li > a {
  display: flex;
  height: 100%;
  min-height: 360px;
  flex-direction: column;
  padding: 1.65rem;
  border: 1px solid var(--taxonomy-line);
  color: inherit;
  background: rgba(255, 255, 255, .72);
  text-decoration: none;
}

.taxonomy-overview-list > li > a:hover {
  border-color: var(--taxonomy-navy);
  background: var(--taxonomy-surface);
}

.taxonomy-overview-list > li > a > span {
  color: var(--taxonomy-gold);
  font-size: .72rem;
  font-weight: 700;
}

.taxonomy-overview-list h2 {
  margin: .65rem 0 0;
  color: var(--taxonomy-navy);
  font-size: 1.35rem;
  line-height: 1.55;
}

.taxonomy-overview-list p {
  margin: .75rem 0 0;
  color: var(--taxonomy-muted);
  font-size: .84rem;
  line-height: 1.85;
}

.taxonomy-overview-list ul {
  margin: 1.2rem 0 0;
  padding: 1.1rem 0 0 1.2rem;
  border-top: 1px solid var(--taxonomy-line);
  color: var(--taxonomy-muted);
  font-size: .76rem;
  line-height: 1.75;
}

.taxonomy-overview-list strong {
  margin-top: auto;
  padding-top: 1.25rem;
  color: var(--taxonomy-navy);
  font-size: .8rem;
}

.taxonomy-content-list {
  border-bottom: 1px solid var(--taxonomy-line);
}

.taxonomy-content-list > li {
  border-top: 1px solid var(--taxonomy-line);
}

.taxonomy-content-list > li:first-child {
  border-top: 0;
}

.taxonomy-content-list > li > a {
  display: block;
  padding: 2.25rem 0;
  color: inherit;
  text-decoration: none;
}

.taxonomy-content-list > li > a > div {
  display: flex;
  gap: .8rem;
  align-items: center;
  color: var(--taxonomy-muted);
  font-size: .72rem;
}

.taxonomy-content-list > li > a > div span {
  padding: .25rem .6rem;
  border: 1px solid #c9b88e;
  border-radius: 999px;
  color: #715925;
  background: rgba(255, 255, 255, .55);
  font-weight: 600;
}

.taxonomy-content-list h2 {
  margin: .9rem 0 0;
  color: var(--taxonomy-navy);
  font-size: clamp(1.35rem, 3vw, 2rem);
  line-height: 1.55;
}

.taxonomy-content-list p {
  max-width: 760px;
  margin: .7rem 0 0;
  color: var(--taxonomy-muted);
  line-height: 1.9;
}

.taxonomy-content-list > li > a > strong {
  display: inline-block;
  margin-top: 1rem;
  color: var(--taxonomy-navy);
  font-size: .82rem;
}

.taxonomy-back,
.taxonomy-footer-links a {
  color: var(--taxonomy-navy);
  font-size: .82rem;
  font-weight: 700;
  text-decoration: none;
}

.taxonomy-back {
  display: inline-block;
  margin-top: 1.5rem;
}

.taxonomy-footer-links {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding-top: 1.5rem;
}

/* Controlled category and related links on detail pages */
.content-taxonomy {
  padding: 3.5rem 0;
  border-top: 1px solid var(--taxonomy-line);
  color: var(--taxonomy-ink);
  background: var(--taxonomy-paper);
}

.content-taxonomy-inner {
  display: grid;
  grid-template-columns: minmax(0, .8fr) minmax(0, 1.2fr);
  gap: 2rem;
  width: min(1080px, calc(100% - 48px));
  margin: 0 auto;
}

.content-taxonomy-primary > p,
.content-related > h2 {
  margin: 0 0 .8rem;
  color: var(--taxonomy-gold);
  font: 700 .72rem/1.5 'Noto Sans JP', sans-serif;
  letter-spacing: .05em;
}

.content-taxonomy-primary > a {
  display: block;
  padding: 1.25rem;
  border: 1px solid var(--taxonomy-line);
  color: inherit;
  background: var(--taxonomy-surface);
  text-decoration: none;
}

.content-taxonomy-primary > a:hover,
.content-related a:hover {
  border-color: var(--taxonomy-navy);
}

.content-taxonomy-primary strong {
  display: block;
  color: var(--taxonomy-navy);
  font-size: 1rem;
  line-height: 1.55;
}

.content-taxonomy-primary span {
  display: block;
  margin-top: .55rem;
  color: var(--taxonomy-muted);
  font-size: .76rem;
  line-height: 1.75;
}

.content-related ul {
  display: grid;
  gap: .65rem;
}

.content-related a {
  display: grid;
  grid-template-columns: 8rem minmax(0, 1fr);
  gap: .9rem;
  align-items: center;
  padding: .9rem 1rem;
  border: 1px solid var(--taxonomy-line);
  color: inherit;
  background: var(--taxonomy-surface);
  text-decoration: none;
}

.content-related a > span {
  color: var(--taxonomy-muted);
  font-size: .7rem;
}

.content-related a > strong {
  color: var(--taxonomy-navy);
  font-size: .82rem;
  line-height: 1.55;
}

@media (max-width: 760px) {
  .taxonomy-heading,
  .taxonomy-page-header,
  .content-taxonomy-inner {
    grid-template-columns: 1fr;
  }

  .taxonomy-heading {
    gap: .65rem;
  }

  .taxonomy-category-list,
  .taxonomy-overview-list {
    grid-template-columns: 1fr;
  }

  .taxonomy-category-list a {
    min-height: 0;
  }

  .taxonomy-page,
  .contents-page {
    margin-top: 68px;
  }

  .taxonomy-shell,
  .content-taxonomy-inner {
    width: min(100% - 32px, 1080px);
  }

  .taxonomy-page-header {
    gap: .8rem;
    padding: 3.25rem 0 3rem;
  }

  .taxonomy-page-header > p,
  .taxonomy-page-header h1,
  .taxonomy-page-header > span,
  .taxonomy-page-header > small {
    grid-column: 1;
  }

  .taxonomy-page-header h1 {
    font-size: clamp(2rem, 10vw, 3rem);
  }

  .taxonomy-page-header h1 .taxonomy-title-line {
    display: block;
  }

  .taxonomy-overview-list {
    padding: 1.5rem 0;
  }

  .taxonomy-overview-list > li > a {
    min-height: 0;
  }

  .content-taxonomy {
    padding: 2.5rem 0;
  }

  .content-taxonomy-inner {
    gap: 1.6rem;
  }

  .content-related a {
    grid-template-columns: 1fr;
    gap: .35rem;
  }

  .taxonomy-footer-links {
    align-items: flex-start;
    flex-direction: column;
  }
}