:root {
  color-scheme: light;
  --ink: #292a2d;
  --muted: #6d6b66;
  --line: #ddd7cd;
  --line-strong: #c7beb2;
  --surface: #fffdfa;
  --canvas: #f4f1eb;
  --blue: #365b91;
  --blue-deep: #243f68;
  --blue-soft: #edf2f7;
  --orange: #bf633d;
  --orange-soft: #f7ebe4;
  --focus: #d95f2e;
  --wrap: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-width: 320px;
  color: var(--ink);
  background: var(--canvas);
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Yu Gothic", "Noto Sans JP", sans-serif;
  font-size: 15px;
  line-height: 1.6;
  text-rendering: optimizeLegibility;
}

img { display: block; max-width: 100%; }
a { color: var(--blue); text-decoration-thickness: 1px; text-underline-offset: 0.15em; }
a:hover { color: var(--blue-deep); }
a:focus-visible, button:focus-visible, input:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 2px;
}

.skip-link {
  position: fixed;
  z-index: 20;
  top: -4rem;
  left: 1rem;
  padding: 0.45rem 0.75rem;
  color: #fff;
  background: var(--blue-deep);
}
.skip-link:focus { top: 0.75rem; }
.portal-wrap { width: min(calc(100% - 2rem), var(--wrap)); margin-inline: auto; }

.portal-header { border-bottom: 1px solid #b8afa3; background: var(--surface); }
.portal-header__inner { display: flex; align-items: center; justify-content: space-between; gap: 1.5rem; min-height: 3.75rem; }
.portal-header__identity { display: flex; align-items: baseline; gap: 0.75rem; min-width: 0; }
.portal-header__identity > span { color: var(--muted); font-size: 0.76rem; white-space: nowrap; }
.portal-brand { color: var(--ink); font-size: 1.04rem; font-weight: 900; letter-spacing: 0.045em; text-decoration: none; white-space: nowrap; }
.portal-brand span { color: var(--orange); }
.portal-header__inner nav { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 0.45rem 1rem; }
.portal-header__inner nav a { color: #414044; font-size: 0.8rem; font-weight: 700; text-decoration: none; }
.portal-header__inner nav a:hover { color: var(--blue); text-decoration: underline; }
.portal-category-nav { border-top: 1px solid #e6e0d7; background: #2b405f; }
.portal-category-nav .portal-wrap { display: flex; align-items: center; overflow-x: auto; scrollbar-width: thin; }
.portal-category-nav a { flex: 0 0 auto; padding: 0.5rem 1.05rem; border-right: 1px solid rgb(255 255 255 / 15%); color: #fff; font-size: 0.8rem; font-weight: 700; text-decoration: none; }
.portal-category-nav a:first-child { border-left: 1px solid rgb(255 255 255 / 15%); }
.portal-category-nav a:hover { color: #fff; background: rgb(255 255 255 / 12%); }

.encyclopedia-home { padding-bottom: 2.25rem; }
.breadcrumbs { padding: 0.55rem 0; }
.breadcrumbs ol { display: flex; flex-wrap: wrap; gap: 0.35rem; margin: 0; padding: 0; color: #7b7771; list-style: none; font-size: 0.73rem; }
.breadcrumbs li + li::before { margin-right: 0.35rem; content: "/"; color: #aaa39a; }

.encyclopedia-intro {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(420px, 1.1fr);
  gap: 1.5rem;
  align-items: center;
  padding: 1.05rem 1.2rem;
  border: 1px solid var(--line-strong);
  border-top: 3px solid var(--blue);
  background: var(--surface);
}
.eyebrow { margin: 0 0 0.18rem; color: var(--blue); font-size: 0.7rem; font-weight: 900; letter-spacing: 0.06em; }
.encyclopedia-intro .eyebrow { color: var(--orange); }
.encyclopedia-intro h1 { margin: 0; font-size: clamp(1.35rem, 2.6vw, 2rem); line-height: 1.3; letter-spacing: -0.025em; }
.encyclopedia-intro__title > p:last-child { margin: 0.45rem 0 0; color: var(--muted); font-size: 0.86rem; }

.portal-search { padding: 0.8rem; border: 1px solid #b9c5d3; background: var(--blue-soft); }
.portal-search label { display: block; margin-bottom: 0.3rem; color: #30435e; font-size: 0.79rem; font-weight: 800; }
.portal-search > div { display: grid; grid-template-columns: minmax(0, 1fr) auto; }
.portal-search input { width: 100%; min-height: 2.65rem; padding: 0.5rem 0.7rem; border: 1px solid #97a7ba; border-radius: 0; color: var(--ink); background: #fff; font: inherit; }
.portal-search button { min-height: 2.65rem; padding-inline: 1.2rem; border: 1px solid var(--blue); border-radius: 0; color: #fff; background: var(--blue); font: inherit; font-weight: 800; cursor: pointer; transition: background-color 120ms ease, transform 120ms ease; }
.portal-search button:hover { background: var(--blue-deep); }
.portal-search button:active { transform: scale(0.98); }
.portal-search p { margin: 0.32rem 0 0; color: var(--muted); font-size: 0.7rem; }
.noscript-note { margin: 0.5rem 0 0; color: var(--muted); font-size: 0.78rem; }

.quick-index { display: flex; flex-wrap: wrap; align-items: center; gap: 0; margin: 0.65rem 0; border: 1px solid var(--line); background: var(--surface); }
.quick-index strong, .quick-index a { padding: 0.38rem 0.7rem; font-size: 0.75rem; }
.quick-index strong { color: #fff; background: var(--blue-deep); }
.quick-index a { border-right: 1px solid var(--line); text-decoration: none; }
.quick-index a:hover { background: var(--blue-soft); text-decoration: underline; }

.encyclopedia-layout { display: grid; grid-template-columns: minmax(0, 1fr) 320px; gap: 0.85rem; align-items: start; }
.encyclopedia-main-column, .encyclopedia-sidebar { display: grid; gap: 0.85rem; min-width: 0; }
.wiki-panel { min-width: 0; border: 1px solid var(--line-strong); background: var(--surface); }
.wiki-panel__header { display: flex; align-items: end; justify-content: space-between; gap: 1rem; padding: 0.62rem 0.8rem; border-bottom: 1px solid var(--line); background: #f8f5ef; }
.wiki-panel__header h2 { margin: 0; color: #343437; font-size: 1.06rem; line-height: 1.35; }
.wiki-panel__header > a { flex: 0 0 auto; font-size: 0.74rem; }

.entry-list { margin: 0; padding: 0; list-style: none; }
.entry-list li { min-width: 0; }
.entry-list li + li { border-top: 1px dotted #d3cdc4; }
.entry-list a { display: block; min-width: 0; padding: 0.5rem 0.7rem; color: inherit; text-decoration: none; }
.entry-list a:hover { background: #f1f5f8; }
.entry-list a:hover strong { color: var(--blue); text-decoration: underline; }
.entry-list span, .entry-list small { display: block; overflow: hidden; color: var(--muted); font-size: 0.68rem; line-height: 1.4; text-overflow: ellipsis; white-space: nowrap; }
.entry-list strong { display: block; overflow: hidden; color: var(--blue-deep); font-size: 0.86rem; line-height: 1.45; text-overflow: ellipsis; white-space: nowrap; }
.entry-list small { margin-top: 0.12rem; white-space: normal; }
.entry-list--updates { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); }
.entry-list--updates li:nth-child(2n) { border-left: 1px solid var(--line); }
.entry-list--updates li:nth-child(2) { border-top: 0; }

.entry-list--ranking { counter-reset: ranking; }
.entry-list--ranking li { counter-increment: ranking; }
.entry-list--ranking a { position: relative; padding-left: 2.35rem; }
.entry-list--ranking a::before { position: absolute; top: 0.55rem; left: 0.65rem; display: grid; width: 1.25rem; height: 1.25rem; place-items: center; border-radius: 2px; color: #fff; background: #747a82; content: counter(ranking); font-size: 0.65rem; font-weight: 900; }
.entry-list--ranking li:nth-child(-n+3) a::before { background: var(--orange); }

.directory-group { padding: 0.8rem; }
.directory-group + .directory-group { border-top: 1px solid var(--line); }
.directory-group__heading { display: flex; align-items: baseline; gap: 0.7rem; margin-bottom: 0.55rem; }
.directory-group__heading h3 { margin: 0; padding-left: 0.45rem; border-left: 4px solid var(--blue); font-size: 0.95rem; }
.directory-group__heading p { margin: 0; color: var(--muted); font-size: 0.7rem; }
.portal-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0.55rem; }
.portal-card { min-width: 0; border: 1px solid var(--line); background: var(--surface); }
.portal-card > a { display: grid; grid-template-columns: 92px minmax(0, 1fr); height: 102px; min-height: 0; overflow: hidden; color: inherit; text-decoration: none; }
.portal-card__image { overflow: hidden; background: #e7e3dd; }
.portal-card__image img { width: 100%; height: 100%; min-height: 82px; object-fit: cover; }
.portal-card__body { display: block; min-width: 0; padding: 0.5rem 0.6rem; }
.portal-card__kind { display: block; color: var(--blue); font-size: 0.64rem; font-weight: 800; }
.portal-card strong { display: block; overflow: hidden; margin: 0.02rem 0 0.14rem; color: var(--blue-deep); font-size: 0.85rem; line-height: 1.35; text-overflow: ellipsis; white-space: nowrap; }
.portal-card__body > span:not(.portal-card__kind) { display: -webkit-box; overflow: hidden; color: var(--muted); font-size: 0.68rem; line-height: 1.35; -webkit-box-orient: vertical; -webkit-line-clamp: 2; }
.portal-card small { display: block; margin-top: 0.2rem; color: #536176; font-size: 0.64rem; font-weight: 700; }
.portal-card:hover { border-color: #8da2bc; background: #fbfcfd; }

.type-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 0; }
#browse-types .type-grid { padding: 0.75rem; gap: 0.45rem; }
.type-card { display: flex; align-items: center; justify-content: space-between; gap: 0.4rem; min-width: 0; padding: 0.55rem 0.65rem; border: 1px solid var(--line); color: inherit; background: var(--surface); text-decoration: none; }
.type-card:hover { border-color: #8da2bc; background: var(--blue-soft); }
.type-card span { overflow: hidden; color: var(--blue-deep); font-size: 0.8rem; font-weight: 800; text-overflow: ellipsis; white-space: nowrap; }
.type-card strong { flex: 0 0 auto; color: #4e5b6d; font-size: 0.72rem; }
.type-card small { display: none; }
.type-grid--sidebar { grid-template-columns: 1fr; padding: 0.5rem; }
.type-grid--sidebar .type-card { border: 0; border-bottom: 1px dotted var(--line-strong); }

.entry-list--continue { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); padding: 0.45rem; }
.entry-list--continue li { border: 1px solid var(--line); }
.entry-list--continue li + li { border-top: 1px solid var(--line); }

.section-index { margin: 0; padding: 0; list-style: none; }
.section-index li + li { border-top: 1px dotted var(--line-strong); }
.section-index a { display: flex; align-items: center; justify-content: space-between; gap: 0.5rem; padding: 0.45rem 0.7rem; text-decoration: none; }
.section-index a:hover { background: var(--blue-soft); text-decoration: underline; }
.section-index span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.section-index strong { flex: 0 0 auto; color: var(--muted); font-size: 0.7rem; }
.section-index strong::after { content: "項目"; margin-left: 0.15rem; font-weight: 500; }

.search-results { margin-top: 0.5rem; border: 1px solid #bdc6d2; background: var(--surface); }
.search-results__summary { margin: 0; padding: 0.55rem 0.7rem; border-bottom: 1px solid var(--line); color: var(--muted); font-size: 0.76rem; }
.search-results__filters { display: flex; flex-wrap: wrap; gap: 0.3rem; padding: 0.55rem 0.7rem; border-bottom: 1px solid var(--line); }
.search-results__filters button { padding: 0.2rem 0.48rem; border: 1px solid #abb8c9; border-radius: 2px; color: var(--blue-deep); background: var(--surface); font: inherit; font-size: 0.7rem; cursor: pointer; }
.search-results__filters button[aria-pressed="true"] { color: #fff; border-color: var(--blue); background: var(--blue); }
.search-results__list { margin: 0; padding: 0; list-style: none; }
.search-results__list li + li { border-top: 1px dotted var(--line-strong); }
.search-results__list a { display: block; padding: 0.55rem 0.7rem; color: inherit; text-decoration: none; }
.search-results__list a:hover { background: #f1f5f8; }
.search-results__list span, .search-results__list small { display: block; color: var(--muted); font-size: 0.7rem; }
.search-results__list strong { display: block; color: var(--blue-deep); line-height: 1.4; }
.search-results__list small { margin-top: 0.12rem; }
.search-results__empty { margin: 0; padding: 0.8rem; color: var(--muted); }

.search-page { min-height: 70vh; padding-bottom: 3rem; }
.search-page__intro { max-width: 900px; margin: 0 auto; padding: 1rem; border: 1px solid var(--line-strong); background: var(--surface); }
.search-page h1 { margin: 0 0 0.25rem; font-size: 1.55rem; line-height: 1.3; }
.search-page__intro > p { color: var(--muted); }
.search-page .portal-search { margin-top: 0.8rem; }
.browse-fallback { max-width: 900px; margin: 0.85rem auto 0; padding: 0.8rem; border: 1px solid var(--line); background: var(--surface); }
.browse-fallback h2 { margin: 0 0 0.4rem; font-size: 1rem; }
.browse-fallback ul { columns: 2; margin: 0; padding-left: 1.1rem; }

.portal-footer { padding: 1.6rem 0; color: #e2e6eb; background: #2c394d; }
.portal-footer .portal-brand { color: #fff; }
.portal-footer .portal-brand span { color: #e6a285; }
.portal-footer p { margin: 0.35rem 0 0.65rem; color: #cbd1da; font-size: 0.76rem; }
.portal-footer__links { display: flex; flex-wrap: wrap; gap: 0.25rem 0.75rem; margin-bottom: 0.75rem; }
.portal-footer a { color: #e4ecf8; font-size: 0.75rem; }
.portal-footer small { color: #aeb9ca; }

@media (max-width: 900px) {
  .encyclopedia-intro { grid-template-columns: 1fr; gap: 0.8rem; }
  .encyclopedia-layout { grid-template-columns: minmax(0, 1fr) 280px; }
  .portal-grid { grid-template-columns: 1fr; }
  .type-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 720px) {
  body { font-size: 14px; }
  .portal-wrap { width: min(calc(100% - 1rem), var(--wrap)); }
  .portal-header__inner { align-items: flex-start; flex-direction: column; gap: 0.35rem; padding: 0.65rem 0; }
  .portal-header__identity { flex-wrap: wrap; gap: 0.25rem 0.65rem; }
  .portal-header__inner nav { justify-content: flex-start; }
  .portal-category-nav a { padding-inline: 0.8rem; }
  .encyclopedia-intro { padding: 0.85rem; }
  .encyclopedia-layout { grid-template-columns: 1fr; }
  .encyclopedia-sidebar { grid-template-columns: 1fr; }
  .entry-list--updates { grid-template-columns: 1fr; }
  .entry-list--updates li:nth-child(2n) { border-left: 0; }
  .entry-list--updates li:nth-child(2) { border-top: 1px dotted #d3cdc4; }
  .directory-group__heading { align-items: flex-start; flex-direction: column; gap: 0.15rem; }
  .portal-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .portal-card > a { grid-template-columns: 76px minmax(0, 1fr); }
  .entry-list--continue { grid-template-columns: 1fr; }
  .quick-index { overflow-x: auto; flex-wrap: nowrap; }
  .quick-index strong, .quick-index a { flex: 0 0 auto; }
  .browse-fallback ul { columns: 1; }
}

@media (max-width: 480px) {
  .portal-search > div { grid-template-columns: minmax(0, 1fr) 4.2rem; }
  .portal-search button { padding-inline: 0.6rem; }
  .portal-grid { grid-template-columns: 1fr; }
  .type-grid { grid-template-columns: 1fr 1fr; }
  .portal-card > a { grid-template-columns: 82px minmax(0, 1fr); }
  .encyclopedia-sidebar { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: 0.01ms !important; animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; }
}