  /* ============ banner (photo, shared treatment) — shorter for a legal page ============ */
  .banner {
      position: relative;
      overflow: hidden;
      min-height: clamp(346px, 50svh, 560px);
      display: flex;
      align-items: flex-end;
      padding: 124px 0 64px;
      background:
          radial-gradient(120% 140% at 50% -30%, #0D1426 0%, var(--space-900) 60%),
          linear-gradient(180deg, #06080F 0%, #04050C 100%);
      border-bottom: 1px solid var(--line);
      margin-top: 64px;
  }

  .banner-photo {
      position: absolute;
      inset: 0;
      z-index: 0;
      overflow: hidden
  }

  .banner-photo img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      object-position: center 45%;
  }

  .banner-photo::after {
      content: "";
      position: absolute;
      inset: 0;
      background: radial-gradient(120% 95% at 72% 12%, rgba(231, 196, 92, .20), transparent 58%);
      mix-blend-mode: overlay
  }

  .banner-scrim {
      position: absolute;
      inset: 0;
      z-index: 1;
      pointer-events: none;
  }

  .pass {
      position: absolute;
      inset: 0;
      z-index: 2;
      pointer-events: none;
      overflow: hidden
  }

  .sat {
      position: absolute;
      top: 0;
      left: 0;
      width: 7px;
      height: 7px;
      border-radius: 50%;
      background: radial-gradient(circle at 50% 40%, var(--gold-bright), var(--gold) 55%, var(--gold-deep) 100%);
      box-shadow: 0 0 10px 2px rgba(243, 215, 126, .9), 0 0 24px 7px rgba(231, 196, 92, .35);
      offset-path: path("M -60 430 C 340 160, 980 110, 1560 300");
      offset-rotate: auto;
      animation: pass 22s linear infinite
  }

  .sat::after {
      content: "";
      position: absolute;
      top: 50%;
      right: 50%;
      width: 46px;
      height: 2px;
      transform: translateY(-50%);
      background: linear-gradient(90deg, rgba(231, 196, 92, 0), rgba(231, 196, 92, .5));
      border-radius: 2px
  }

  @keyframes pass {
      0% {
          offset-distance: 0%;
          opacity: 0
      }

      8% {
          opacity: 1
      }

      88% {
          opacity: 1
      }

      100% {
          offset-distance: 100%;
          opacity: 0
      }
  }

  .banner .wrap {
      position: relative;
      z-index: 3
  }

  .crumbs {
      display: flex;
      align-items: center;
      gap: 10px;
      margin-bottom: 18px;
      font-family: var(--mono);
      font-size: 11.5px;
      letter-spacing: .16em;
      text-transform: uppercase;
      color: var(--muted)
  }

  .crumbs a {
      text-decoration: none;
      transition: color .2s
  }

  .crumbs a:hover {
      color: var(--gold)
  }

  .crumbs .sl {
      color: var(--line)
  }

  .crumbs [aria-current] {
      color: var(--ink)
  }

  .banner h1 {
      font-family: var(--jp-serif);
      font-weight: 600;
      line-height: 1.2;
      letter-spacing: .03em;
      font-size: clamp(32px, 4.6vw, 52px)
  }

  .banner .en {
      display: block;
      margin-top: 12px;
      font-family: var(--en);
      font-size: clamp(12px, 1.3vw, 14px);
      letter-spacing: .28em;
      text-transform: uppercase;
      color: var(--gold)
  }

  /* ============ document layout ============ */
  .doc {
      padding: clamp(56px, 7vw, 88px) 0 clamp(72px, 9vw, 112px)
  }

  .doc-grid {
      display: grid;
      grid-template-columns: 240px 1fr;
      gap: clamp(36px, 5vw, 72px);
      align-items: start
  }

  /* table of contents (sticky) */
  .toc {
      position: sticky;
      top: 32px;
      border-left: 1px solid var(--hair);
      padding-left: 22px
  }

  .toc h2 {
      font-family: var(--mono);
      font-size: 11px;
      letter-spacing: .2em;
      text-transform: uppercase;
      color: var(--gold);
      margin-bottom: 18px
  }

  .toc ol {
      list-style: none;
      counter-reset: toc;
      display: flex;
      flex-direction: column;
      gap: 11px
  }

  .toc li {
      counter-increment: toc
  }

  .toc a {
      display: flex;
      gap: 9px;
      font-size: 13px;
      color: var(--muted);
      text-decoration: none;
      line-height: 1.5;
      transition: color .2s
  }

  .toc a::before {
      content: counter(toc, decimal-leading-zero);
      font-family: var(--mono);
      font-size: 10.5px;
      color: var(--gold-deep);
      padding-top: 1px
  }

  .toc a:hover,
  .toc a:focus-visible {
      color: var(--ink)
  }

  /* article body */
  .doc-body {
      min-width: 0;
      max-width: 76ch
  }

  .lead {
      color: var(--muted);
      font-size: clamp(14.5px, 1.3vw, 16px);
      line-height: 2.05;
      padding-bottom: 36px;
      margin-bottom: 12px;
      border-bottom: 1px solid var(--hair)
  }

  .lead b {
      color: var(--ink);
      font-weight: 500
  }

  .meta-dates {
      display: flex;
      gap: 26px;
      flex-wrap: wrap;
      margin-top: 22px;
      font-family: var(--mono);
      font-size: 11.5px;
      letter-spacing: .06em;
      color: var(--muted)
  }

  .meta-dates b {
      color: var(--gold);
      font-weight: 500
  }

  .clause {
      padding: 34px 0;
      border-bottom: 1px solid var(--hair);
      scroll-margin-top: 32px
  }

  .clause h3 {
      font-family: var(--jp-serif);
      font-weight: 600;
      font-size: clamp(18px, 1.8vw, 22px);
      line-height: 1.5;
      margin-bottom: 18px;
      display: flex;
      gap: 14px;
      align-items: baseline
  }

  .clause h3 .cn {
      font-family: var(--mono);
      font-size: 13px;
      color: var(--gold);
      flex: 0 0 auto;
      padding-top: 2px
  }

  .clause p {
      color: var(--muted);
      font-size: 14.5px;
      line-height: 1.95;
      margin-bottom: 14px
  }

  .clause p:last-child {
      margin-bottom: 0
  }

  .clause b {
      color: var(--ink);
      font-weight: 500
  }

  .clause ul,
  .clause ol {
      margin: 14px 0 14px 2px;
      display: flex;
      flex-direction: column;
      gap: 9px
  }

  .clause ul {
      list-style: none
  }

  .clause ul li {
      position: relative;
      padding-left: 20px;
      color: var(--muted);
      font-size: 14.5px;
      line-height: 1.85
  }

  .clause ul li::before {
      content: "";
      position: absolute;
      left: 0;
      top: .72em;
      width: 7px;
      height: 1px;
      background: var(--gold)
  }

  .clause ol {
      list-style: decimal;
      padding-left: 22px
  }

  .clause ol li {
      color: var(--muted);
      font-size: 14.5px;
      line-height: 1.85;
      padding-left: 4px
  }

  .clause a.inline {
      color: var(--gold);
      text-decoration: underline;
      text-underline-offset: 3px
  }

  /* contact block inside document */
  .contact-card {
      margin-top: 22px;
      border: 1px solid var(--line);
      border-radius: 4px;
      padding: 24px 26px;
      background: radial-gradient(90% 200% at 85% 0%, rgba(201, 146, 10, .05), transparent 60%)
  }

  .contact-card .row {
      display: flex;
      gap: 16px;
      padding: 7px 0;
      font-size: 14.5px
  }

  .contact-card .k {
      flex: 0 0 120px;
      color: var(--muted);
      font-family: var(--mono);
      font-size: 11px;
      letter-spacing: .1em;
      text-transform: uppercase;
      padding-top: 4px
  }

  .contact-card .v {
      color: var(--ink)
  }

  .contact-card .v a {
      color: var(--gold);
      text-decoration: none;
      border-bottom: 1px solid var(--hair)
  }

  .sign {
      margin-top: 40px;
      text-align: right;
      color: var(--muted);
      font-size: 14px;
      line-height: 1.9
  }

  .sign b {
      color: var(--ink);
      font-weight: 500
  }

  /* ============ footer (shared) ============ */
  .foot {
      border-top: 1px solid var(--line);
      background: #04050C;
      padding: 72px 0 30px
  }

  .foot-grid {
      display: grid;
      grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
      gap: 40px
  }

  .foot .brand {
      margin-bottom: 20px;
      color: var(--ink)
  }

  .foot .tag {
      font-family: var(--jp-serif);
      font-size: 17px;
      color: var(--ink);
      margin-bottom: 10px;
      letter-spacing: .02em
  }

  .foot .tag-en {
      font-family: var(--en);
      font-size: 12.5px;
      letter-spacing: .12em;
      color: var(--muted)
  }

  .foot h4 {
      font-family: var(--mono);
      font-size: 11px;
      letter-spacing: .2em;
      text-transform: uppercase;
      color: var(--gold);
      font-weight: 500;
      margin-bottom: 18px
  }

  .foot ul {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 11px
  }

  .foot ul a {
      font-size: 14px;
      color: var(--muted);
      text-decoration: none;
      transition: color .25s
  }

  .foot ul a:hover,
  .foot ul a:focus-visible {
      color: var(--gold)
  }

  .foot address {
      font-style: normal;
      font-size: 14px;
      color: var(--muted);
      line-height: 1.9
  }

  .foot .mail {
      color: var(--ink);
      text-decoration: none;
      border-bottom: 1px solid var(--hair);
      transition: border-color .25s
  }

  .foot .mail:hover {
      border-color: var(--gold)
  }

  .foot-bottom {
      margin-top: 56px;
      padding-top: 24px;
      border-top: 1px solid var(--hair);
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 20px;
      flex-wrap: wrap;
      font-family: var(--mono);
      font-size: 11px;
      letter-spacing: .14em;
      text-transform: uppercase;
      color: var(--muted)
  }

  .foot-bottom .live {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      color: var(--ink)
  }

  .foot-bottom .dot {
      width: 7px;
      height: 7px;
      border-radius: 50%;
      background: var(--ok);
      box-shadow: 0 0 8px 1px rgba(91, 226, 154, .8);
      animation: pulse 2.4s ease-in-out infinite
  }

  @keyframes pulse {

      0%,
      100% {
          opacity: .45
      }

      50% {
          opacity: 1
      }
  }

  .top-link {
      text-decoration: none;
      color: var(--muted);
      transition: color .25s
  }

  .top-link:hover {
      color: var(--gold)
  }

  /* ============ responsive ============ */
  @media (max-width:1080px) {
      .foot-grid {
          grid-template-columns: 1fr 1fr;
          gap: 44px 32px
      }
  }

  @media (max-width:900px) {
      .doc-grid {
          grid-template-columns: 1fr
      }

      .toc {
          position: static;
          border-left: none;
          border-top: 1px solid var(--hair);
          padding-left: 0;
          padding-top: 26px;
          margin-bottom: 8px
      }

      .toc ol {
          display: grid;
          grid-template-columns: 1fr 1fr;
          gap: 10px 24px
      }
  }

  @media (max-width:960px) {
      nav.gnav {
          display: none
      }

      .banner-photo img {
          object-position: center 42%
      }
  }

  @media (max-width:620px) {
      .banner {
          padding: 132px 0 40px
      }

      .toc ol {
          grid-template-columns: 1fr
      }

      .contact-card .row {
          flex-direction: column;
          gap: 4px
      }

      .contact-card .k {
          flex: none
      }

      .foot-grid {
          grid-template-columns: 1fr;
          gap: 36px
      }
  }

  @media (prefers-reduced-motion:reduce) {
      html {
          scroll-behavior: auto
      }

      .sat,
      .foot-bottom .dot {
          animation: none !important
      }
  }