:root {
      --text: #111;
      --muted: #555;
      --line: #dedede;
      --link: #0645ad;
      --link-hover: #04357f;
      --card-background: #eeeeee;
      --card-border: #d2d2d2;
      --soft-background: #f8f8f8;
    }

    * { box-sizing: border-box; }

    html {
      background: #fff;
      scroll-behavior: smooth;
    }

    body {
      max-width: 980px;
      margin: 0 auto;
      padding: 42px 28px 30px;
      color: var(--text);
      background: #fff;
      font-family: Georgia, "Times New Roman", serif;
      font-size: 17px;
      line-height: 1.58;
    }

    h1, h2, h3 {
      color: var(--text);
      line-height: 1.25;
    }

    h1 {
      margin: 0 0 .08em;
      font-size: 2.05rem;
    }

    h2 {
      margin: 0 0 .85rem;
      padding: 0 0 .32rem;
      border-bottom: 1px solid var(--line);
      font-size: 1.45rem;
    }

    h3 {
      margin: 1.25rem 0 .45rem;
      font-size: 1.08rem;
    }

    p { margin: .68rem 0; }
    ol, ul { padding-left: 1.4rem; }
    li { margin: .42rem 0; }

    a {
      color: var(--link);
      text-decoration: none;
      text-underline-offset: .15em;
    }

    a:hover,
    a:focus-visible {
      color: var(--link-hover);
      text-decoration: underline;
    }

    section[id] { scroll-margin-top: 1rem; }

    .skip-link {
      position: absolute;
      left: 1rem;
      top: -5rem;
      z-index: 1000;
      padding: .55rem .75rem;
      border: 2px solid var(--link);
      color: #fff;
      background: var(--link);
    }

    .skip-link:focus {
      top: 1rem;
      color: #fff;
    }

    .page-header {
      padding-bottom: 1.1rem;
      border-bottom: 1px solid var(--line);
    }

    .back-link {
      margin: 0 0 1.1rem;
      font-size: .94rem;
    }

    .name-latin {
      margin: .18rem 0;
      color: var(--muted);
      font-size: 1rem;
    }

    .subtitle {
      margin: .45rem 0 0;
      color: #444;
      font-size: 1rem;
    }

    .intro {
      margin: 1.35rem 0;
      padding: 1.05rem 1.15rem;
      border-left: 4px solid #bbb;
      background: var(--soft-background);
    }

    .intro p { margin: .35rem 0; }

    .contents {
      margin: 1.35rem 0 1.75rem;
      padding: 1rem 1.15rem;
      border: 1px solid var(--card-border);
      background: var(--card-background);
    }

    .contents h2 {
      margin-top: 0;
      border-bottom-color: #c8c8c8;
      font-size: 1.2rem;
    }

    .contents ol {
      columns: 2;
      column-gap: 2.5rem;
      margin-bottom: 0;
      padding-left: 1.35rem;
    }

    .contents li {
      break-inside: avoid;
      margin-bottom: .4rem;
    }

    .public-activity-section {
      padding: 1.45rem 0;
      border-top: 1px solid var(--line);
    }

    .public-activity-section > p {
      margin-bottom: .55rem;
    }

    .section-description-en {
      color: var(--muted);
      font-size: .95rem;
    }

    .public-activity-section details {
      margin: 1rem 0 1.35rem;
      padding: .85rem 1rem;
      border: 1px solid var(--card-border);
      background: #fbfbfb;
    }

    .public-activity-section summary {
      cursor: pointer;
      color: var(--text);
      font-weight: bold;
    }

    .public-activity-section details ol {
      margin: 1rem 0 .3rem;
      padding-left: 1.45rem;
    }

    .public-activity-section details li {
      margin-bottom: .8rem;
      overflow-wrap: anywhere;
    }

    .public-activity-section details ol ol {
      margin: .6rem 0;
    }

    .back-to-top {
      margin: .8rem 0 0;
      font-size: .9rem;
      text-align: right;
    }

    .site-links {
      margin: 2rem 0 0;
      padding: 1rem 0;
      border-top: 1px solid var(--line);
      border-bottom: 1px solid var(--line);
    }

    .site-links p {
      display: flex;
      flex-wrap: wrap;
      gap: .35rem 1rem;
      margin: 0;
    }

    footer {
      margin-top: 1rem;
      color: #444;
      font-size: .9rem;
    }

    @media (max-width: 720px) {
      body {
        padding: 24px 18px;
        font-size: 16px;
      }

      .contents ol { columns: 1; }
      .intro, .contents, .public-activity-section details { padding: .9rem; }
      .site-links p { display: block; }
      .site-links a { display: block; margin: .28rem 0; }
    }

    @media print {
      body {
        max-width: none;
        margin: 0;
        padding: 0;
      }

      details { display: block; }
      details > * { display: block; }
      a { color: #111; text-decoration: underline; }
    }

.breadcrumbs { margin: 0 0 1rem; color: var(--muted); font-size: .94rem; }
.breadcrumbs a { margin-right: .25rem; }
.category-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem; margin: 1.4rem 0; }
.category-card { padding: 1rem 1.1rem; border: 1px solid var(--card-border); background: var(--soft-background); }
.category-card h2 { margin: 0 0 .55rem; font-size: 1.2rem; }
.category-card p { margin: .45rem 0; }
.category-card .category-link { font-weight: bold; }
.category-page .public-activity-section { border-top: 0; }
.category-nav { display: flex; flex-wrap: wrap; justify-content: space-between; gap: .75rem; margin: 1.5rem 0; padding-top: 1rem; border-top: 1px solid var(--line); }
@media (max-width: 720px) { .category-grid { grid-template-columns: 1fr; } }