:root {
    --navy: #021942;
    --navy-2: #0A2A5E;
    --silver: #C7CBD2;
    --silver-dim: #9AA3B0;
    --ink: #000000;
    --rule: #C9CDD4;
    --paper: #FFFFFF;
    --paper-2: #F3F5F8;
    --bar-h: 54px;
  }
  * { box-sizing: border-box; }
  html { scroll-behavior: smooth; scroll-padding-top: calc(var(--bar-h) + 24px); }
  @media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
  body { margin: 0; background: var(--paper); color: var(--ink); font-family: Arial, Helvetica, sans-serif; font-size: 16px; line-height: 1.6; }
  a { color: var(--navy); text-underline-offset: 3px; }
  a:hover { color: var(--navy-2); }
  :focus-visible { outline: 2px solid var(--navy); outline-offset: 3px; }
  .wrap { max-width: 1080px; margin: 0 auto; padding: 0 34px; }
  @media (max-width: 1000px) {
    .bar { position: static; }
    html { scroll-padding-top: 24px; }
  }
  @media (max-width: 700px) { .wrap { padding: 0 20px; } }
  img { max-width: 100%; height: auto; display: block; }

  .seal { background-image: url("../img/seal.png"); background-size: contain; background-repeat: no-repeat; background-position: center; aspect-ratio: 1254 / 1235; flex: 0 0 auto; }

  .band { background: var(--navy); color: #FFFFFF; padding: 26px 0 30px; }
  .band .wrap { display: flex; gap: 26px; align-items: flex-start; }
  .band-text { display: flex; flex-direction: column; gap: 10px; }
  .org { font-size: 20px; font-weight: bold; letter-spacing: .12em; text-transform: uppercase; color: #FFFFFF; -webkit-font-smoothing: antialiased; }
  @media (max-width: 620px) { .org { font-size: 15px; letter-spacing: .08em; } }
  .matter-no { font-size: 12px; font-weight: bold; letter-spacing: .2em; text-transform: uppercase; color: #FFFFFF; }
  h1 { font-size: clamp(26px, 3.7vw, 39px); font-weight: bold; color: #FFFFFF; margin: 0; line-height: 1.22; text-wrap: balance; }
  .status-row { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 4px; }
  .pill { font-size: 11px; font-weight: bold; letter-spacing: .08em; text-transform: uppercase; padding: 5px 9px; white-space: nowrap; }
  .pill-open { background: #FFFFFF; color: var(--navy); }
  .pill-ref { background: var(--navy-2); color: #FFFFFF; }
  .pill-pub { background: var(--navy); color: #FFFFFF; }
  .pill-file { background: #E7EAEF; color: #4A5160; }

  .bar { position: sticky; top: 0; z-index: 40; background: var(--navy); border-top: 1px solid var(--navy-2); border-bottom: 1px solid var(--navy-2); height: var(--bar-h); }
  .bar .wrap { height: 100%; display: flex; align-items: center; justify-content: space-between; gap: 16px; }
  .bar a, .bar button {
    font-family: inherit; font-size: 11px; font-weight: bold; letter-spacing: .12em; text-transform: uppercase;
    color: var(--silver); text-decoration: none; background: none; border: 0; padding: 10px 0; cursor: pointer;
  }
  .bar a:hover, .bar button:hover { color: #FFFFFF; }
  .bar .here { color: #FFFFFF; letter-spacing: .1em; }
  @media (max-width: 700px) { .bar .here { display: none; } }

  .index { border: 1px solid var(--rule); border-top: 3px solid var(--navy); margin: 34px 0 10px; }
  .index-head { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 14px 18px; background: var(--paper-2); }
  .index-head h2 { font-size: 13px; font-weight: bold; letter-spacing: .14em; text-transform: uppercase; color: var(--navy); margin: 0; }
  .index-toggle { font-family: inherit; font-size: 11px; font-weight: bold; letter-spacing: .1em; text-transform: uppercase; color: var(--navy); background: none; border: 1px solid var(--navy); padding: 8px 12px; cursor: pointer; min-height: 36px; }
  .index-toggle:hover { background: var(--navy); color: #FFFFFF; }
  .index-body { padding: 6px 18px 14px; }
  .index-body[hidden] { display: none; }
  .index-body ol { list-style: none; counter-reset: ix; margin: 0; padding: 0; }
  .index-body li { counter-increment: ix; border-bottom: 1px solid var(--rule); }
  .index-body li:last-child { border-bottom: 0; }
  .index-body a { display: grid; grid-template-columns: 42px minmax(0,1fr); gap: 10px; padding: 11px 0; text-decoration: none; }
  .index-body a:hover { text-decoration: underline; }
  .index-body a::before { content: counter(ix, decimal-leading-zero); font-weight: bold; color: var(--navy); font-variant-numeric: tabular-nums; }

  main section { padding: 40px 0 0; scroll-margin-top: calc(var(--bar-h) + 24px); }
  .sec-head { display: flex; align-items: baseline; gap: 14px; flex-wrap: wrap; margin-bottom: 18px; padding-bottom: 10px; border-bottom: 2px solid var(--navy); }
  .sec-no { font-size: 13px; font-weight: bold; color: var(--navy); font-variant-numeric: tabular-nums; }
  h2.sec { font-size: clamp(20px, 2.5vw, 25px); font-weight: bold; color: var(--navy); margin: 0; }
  h3 { font-size: 13px; font-weight: bold; letter-spacing: .11em; text-transform: uppercase; color: var(--navy); margin: 26px 0 8px; }
  .prose { max-width: 78ch; }
  .prose p { margin: 0 0 16px; }
  .prose ul { max-width: 78ch; padding-left: 22px; }
  .prose li { margin-bottom: 8px; }
  .tbc { color: #6E7480; }

  dl.meta { display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); margin: 0 0 20px; border-top: 1px solid var(--rule); border-bottom: 1px solid var(--rule); }
  dl.meta > div { padding: 14px 16px 14px 0; border-right: 1px solid var(--rule); }
  dl.meta > div:last-child { border-right: 0; }
  dl.meta dt { font-size: 11px; font-weight: bold; letter-spacing: .12em; text-transform: uppercase; color: var(--navy); margin-bottom: 5px; }
  dl.meta dd { margin: 0; }

  ol.steps { list-style: none; margin: 0; padding: 0; max-width: 78ch; }
  ol.steps li { display: grid; grid-template-columns: 160px minmax(0,1fr); gap: 14px; padding: 12px 0; border-bottom: 1px solid var(--rule); }
  ol.steps .d { font-weight: bold; color: var(--navy); font-variant-numeric: tabular-nums; }

  ol.record { list-style: none; counter-reset: rc; margin: 0; padding: 0; }
  ol.record > li { counter-increment: rc; display: grid; grid-template-columns: 44px minmax(0,1fr); gap: 14px; padding: 16px 0; border-bottom: 1px solid var(--rule); }
  ol.record > li::before { content: counter(rc, decimal-leading-zero); font-weight: bold; color: var(--navy); font-variant-numeric: tabular-nums; padding-top: 2px; }
  .rec-title { font-weight: bold; }
  .rec-meta { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; margin-top: 6px; }
  .rec-note { color: #4A5160; font-size: 15px; }

  .note-box { border: 1px solid var(--rule); border-left: 5px solid var(--navy); background: var(--paper-2); padding: 20px 22px; max-width: 80ch; margin: 20px 0; }
  .note-box strong { display: block; color: var(--navy); margin-bottom: 8px; }
  .note-box p { margin: 0 0 12px; }
  .note-box p:last-child { margin-bottom: 0; }

  .letter { border: 1px solid var(--rule); background: var(--paper-2); padding: 30px 34px; max-width: 80ch; }
  .letter .lh { display: flex; justify-content: space-between; gap: 20px; flex-wrap: wrap; border-bottom: 1px solid var(--rule); padding-bottom: 12px; margin-bottom: 20px; }
  .letter .lh span { font-size: 13px; font-weight: bold; letter-spacing: .1em; text-transform: uppercase; color: var(--navy); }
  .letter h3:first-of-type { margin-top: 0; }
  .letter p { margin: 0 0 15px; }
  .letter p:last-child { margin-bottom: 0; }
  .letter .sig { margin-top: 24px; padding-top: 16px; border-top: 1px solid var(--rule); }
  .letter .motto { font-style: italic; color: #4A5160; font-size: 15px; }
  .callout { font-weight: bold; color: var(--navy); }

  .latest { background: var(--paper-2); border-bottom: 1px solid var(--rule); padding: 26px 0 30px; }
  .latest h2 { font-size: 13px; font-weight: bold; letter-spacing: .18em; color: var(--navy); margin: 0 0 8px; }
  .latest p { margin: 0; max-width: 56ch; }
  .latest .lu-media { position: relative; display: block; width: 100%; max-width: 340px; margin: 14px 0 10px;
    border: 1px solid var(--rule); background: #000; cursor: pointer; padding: 0; }
  .latest .lu-media img { width: 100%; height: auto; display: block; }
  figure video.lu-video { width: 100%; max-width: 340px; aspect-ratio: 9 / 16; display: block; height: auto; border: 1px solid var(--rule); background: #000; }
  .latest video.lu-video { width: 100%; max-width: 340px; aspect-ratio: 9 / 16; display: block; height: auto;
    border: 1px solid var(--rule); background: #000; margin: 14px 0 10px; }
  .latest .lu-frame { width: 100%; max-width: 340px; aspect-ratio: 9 / 16; display: block;
    border: 1px solid var(--rule); background: #000; margin: 14px 0 10px; }
  .latest .lu-play { position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; }
  .latest .lu-play span { display: block; width: 74px; height: 74px; border-radius: 50%; background: rgba(2,25,66,.86);
    border: 3px solid #FFFFFF; position: relative; }
  .latest .lu-play span::after { content: ""; position: absolute; top: 50%; left: 54%; transform: translate(-50%,-50%);
    border-style: solid; border-width: 15px 0 15px 25px; border-color: transparent transparent transparent #FFFFFF; }
  .latest .lu-media:hover .lu-play span { background: rgba(10,42,94,.94); }
  .latest .lu-cap { font-size: 14px; color: #333A46; margin: 0; }
  .vthumb { max-width: 300px; width: 100%; height: auto; border: 1px solid var(--rule); margin: 10px 0 8px; }
  figure { margin: 0; max-width: 620px; }
  figure img { border: 1px solid var(--rule); }
  figcaption { font-size: 15px; color: #333A46; margin-top: 10px; }
  .figrow { display: flex; gap: 28px; flex-wrap: wrap; align-items: flex-start; }

  .links { list-style: none; margin: 0; padding: 0; max-width: 78ch; }
  .links li { display: grid; grid-template-columns: 130px minmax(0,1fr); gap: 12px; padding: 10px 0; border-bottom: 1px solid var(--rule); }
  .links .k { font-weight: bold; color: var(--navy); }
  .links a { word-break: break-word; }

  .to-top { padding: 26px 0 0; }
  .to-top a { font-size: 11px; font-weight: bold; letter-spacing: .12em; text-transform: uppercase; color: var(--navy); text-decoration: none; border: 1px solid var(--rule); padding: 11px 16px; min-height: 42px; display: inline-flex; align-items: center; gap: 8px; }
  .to-top a:hover { border-color: var(--navy); background: var(--paper-2); }

  footer { background: var(--navy); color: var(--silver); margin-top: 60px; padding: 30px 0 46px; font-size: 14px; }
  footer .wrap { display: flex; flex-wrap: wrap; gap: 10px 30px; justify-content: space-between; }
  footer a { color: #FFFFFF; }

  @media (max-width: 700px) {
    .band .wrap { flex-direction: column; gap: 18px; }
    ol.steps li, ol.record > li, .links li { grid-template-columns: 1fr; gap: 4px; }
    .letter { padding: 22px 20px; }
  }

  /* ---------- tables and figures (Matter 02 record summary) ---------- */
  main h3 { font-size: 19px; color: var(--navy); margin: 30px 0 8px; }
  main h4 { font-size: 16px; color: var(--navy); margin: 24px 0 8px; }
  ul.figs { margin: 0 0 8px; padding-left: 20px; max-width: 76ch; }
  ul.figs li { margin-bottom: 6px; }
  table.tbl { width: 100%; border-collapse: collapse; font-size: 15px; margin: 6px 0 10px; }
  table.tbl th { text-align: left; background: var(--paper-2); color: var(--navy); border: 1px solid var(--rule); padding: 8px 10px; font-size: 13px; letter-spacing: .04em; }
  table.tbl td { border: 1px solid var(--rule); padding: 8px 10px; vertical-align: top; }
  table.tbl td:first-child { font-weight: bold; width: 22%; }
  @media (max-width: 700px) {
    table.tbl, table.tbl tbody, table.tbl tr, table.tbl td { display: block; width: 100%; }
    table.tbl thead { position: absolute; left: -9999px; }
    table.tbl tr { border: 1px solid var(--rule); margin-bottom: 12px; }
    table.tbl td { border: 0; border-bottom: 1px solid var(--rule); width: 100% !important; }
    table.tbl td::before { content: attr(data-l); display: block; font-size: 12px; letter-spacing: .06em; text-transform: uppercase; color: #4A5160; font-weight: normal; }
  }