@layer page {
  /* Consolidated page styles for guide-board.html */
  /* Page-specific styles for guide-board.html */
  /* 章の折りたたみ */
  .chapter-block {
    border: 1px solid #e2e8f0;
    border-radius: 10px;
    margin-bottom: 12px;
    overflow: hidden;
  }
  .chapter-block summary {
    font-size: 1.05rem;
    font-weight: 900;
    color: #1e3a5f;
    border-left: 4px solid #1d4ed8;
    padding: 14px 16px 14px 16px;
    cursor: pointer;
    list-style: none;
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: #f8fafc;
    user-select: none;
    transition: background 0.15s;
    gap: 12px;
  }
  .chapter-block summary::-webkit-details-marker {
    display: none;
  }
  .chapter-block summary::after {
    content: "▶";
    font-size: 0.7rem;
    color: #94a3b8;
    flex-shrink: 0;
    transition: transform 0.2s;
  }
  .chapter-block[open] summary::after {
    transform: rotate(90deg);
  }
  .chapter-block summary:hover {
    background: #eff6ff;
  }
  .chapter-block[open] summary {
    background: #eff6ff;
    border-bottom: 1px solid #e2e8f0;
  }
  .chapter-content {
    padding: 20px 24px;
    font-size: 1rem;
    line-height: 1.9;
    color: #1e293b;
  }

  /* 職務専念義務 図解 */
  .duty-section {
    background: #fff;
    padding: 80px 0;
  }
  .duty-diagram {
    display: grid;
    grid-template-columns: 1fr 48px 1fr;
    align-items: center;
    gap: 0;
    margin: 48px 0;
  }
  .duty-col {
    border-radius: var(--radius);
    padding: 32px;
  }
  .duty-col-school {
    background: linear-gradient(145deg, #1d4ed8, #2563eb);
    color: #fff;
  }
  .duty-col-pta {
    background: #fff;
    border: 1px solid var(--line);
    box-shadow: var(--shadow-sm);
  }
  .duty-col-school h3 {
    font-family: "Noto Serif JP", serif;
    color: var(--gold-lt);
    font-size: 1.15rem;
    margin-bottom: 14px;
  }
  .duty-col-pta h3 {
    font-family: "Noto Serif JP", serif;
    color: var(--navy);
    font-size: 1.15rem;
    margin-bottom: 14px;
  }
  .duty-item {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    margin-bottom: 10px;
    font-size: 0.9rem;
    line-height: 1.6;
  }
  .duty-item-school {
    color: rgba(255, 255, 255, 0.88);
  }
  .duty-item-pta {
    color: var(--text);
  }
  .duty-ok {
    color: #4ade80;
    font-weight: 900;
    flex-shrink: 0;
  }
  .duty-ng {
    color: #f87171;
    font-weight: 900;
    flex-shrink: 0;
  }
  .duty-arrow {
    font-size: 2rem;
    color: var(--gold);
    text-align: center;
  }
  .duty-bridge {
    margin: 0 -1px;
    background: linear-gradient(
      145deg,
      rgba(212, 175, 55, 0.12),
      rgba(212, 175, 55, 0.06)
    );
    border: 1px solid rgba(212, 175, 55, 0.3);
    border-radius: 12px;
    padding: 18px 14px;
    text-align: center;
    font-size: 0.82rem;
    color: #7a5c00;
    font-weight: 800;
  }
  .duty-bridge strong {
    display: block;
    font-size: 0.95rem;
    color: var(--navy);
    margin-bottom: 4px;
  }

  /* 渉外業務の範囲 */
  .scope-section {
    background: var(--bg);
    padding: 80px 0;
  }
  .scope-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 22px;
    margin-top: 40px;
  }
  .scope-card-ok {
    background: #f0fdf4;
    border: 1px solid #bbf7d0;
    border-radius: var(--radius);
    padding: 28px;
  }
  .scope-card-ng {
    background: #fff5f5;
    border: 1px solid #fecaca;
    border-radius: var(--radius);
    padding: 28px;
  }
  .scope-card-label {
    font-size: 0.78rem;
    font-weight: 900;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    margin-bottom: 14px;
    display: flex;
    align-items: center;
    gap: 8px;
  }
  .scope-card-ok .scope-card-label {
    color: #15803d;
  }
  .scope-card-ng .scope-card-label {
    color: #b91c1c;
  }
  .scope-item {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    margin-bottom: 10px;
    font-size: 0.9rem;
    line-height: 1.6;
  }
  .scope-ok-dot {
    color: #15803d;
    font-weight: 900;
    flex-shrink: 0;
  }
  .scope-ng-dot {
    color: #b91c1c;
    font-weight: 900;
    flex-shrink: 0;
  }

  /* 覚書問題 */
  .mou-section {
    background: linear-gradient(145deg, #fffbeb, #fff);
    border-top: 4px solid #d97706;
    padding: 72px 0;
  }
  .mou-alert {
    background: #fffbeb;
    border: 2px solid #fbbf24;
    border-radius: var(--radius);
    padding: 28px;
    margin-bottom: 28px;
  }
  .mou-alert-title {
    font-family: "Noto Serif JP", serif;
    font-size: 1.2rem;
    font-weight: 900;
    color: #92400e;
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 10px;
  }
  .mou-alert p {
    font-size: 0.93rem;
    color: #78350f;
    line-height: 1.8;
  }
  .mou-compare {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-top: 28px;
  }
  .mou-col {
    border-radius: var(--radius);
    padding: 24px;
  }
  .mou-col-problem {
    background: #fff5f5;
    border: 1px solid #fecaca;
  }
  .mou-col-solution {
    background: #f0fdf4;
    border: 1px solid #bbf7d0;
  }
  .mou-col-label {
    font-size: 0.78rem;
    font-weight: 900;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    margin-bottom: 12px;
  }
  .mou-col-problem .mou-col-label {
    color: #b91c1c;
  }
  .mou-col-solution .mou-col-label {
    color: #15803d;
  }
  .mou-item {
    display: flex;
    gap: 10px;
    font-size: 0.88rem;
    line-height: 1.6;
    margin-bottom: 9px;
  }

  /* Yokohama notice */
  .yk-notice-section {
    background: #f8fafc;
    padding: 72px 0;
    color: #172033;
    border-top: 1px solid #dbe4ee;
    border-bottom: 1px solid #dbe4ee;
  }
  .yk-notice-card {
    background: rgba(255, 255, 255, 0.07);
    border: 1px solid rgba(255, 255, 255, 0.14);
    border-radius: var(--radius);
    padding: 32px;
    max-width: 820px;
    margin: 32px auto 0;
  }
  .yk-notice-section .section-title {
    color: var(--navy);
  }
  .yk-notice-section .section-lead {
    color: #334155;
  }
  .yk-notice-section [style*="color:var(--gold-lt)"] {
    color: #fde68a;
  }
  .yk-notice-section > .wrap > div[style*="grid"] > div {
    background: #fff;
    border: 1px solid #dbe4ee;
    box-shadow: 0 14px 34px rgba(15, 39, 66, 0.08);
  }
  .yk-case-body {
    background: #fff;
    color: #172033;
  }
  .yk-case-body div,
  .yk-case-body p,
  .yk-case-body span {
    color: #334155;
  }
  .yk-case-body strong {
    color: #0f2742;
  }
  .yk-case-body div[style*="color:var(--gold-lt)"],
  .yk-case-body span[style*="color:var(--gold-lt)"] {
    color: #5f4300;
  }
  .yk-case-body strong[style*="color:var(--gold-lt)"] {
    color: #0f2742;
  }
  .yk-case-body div[style*="background:rgba(255,255,255,.07)"],
  .yk-case-body div[style*="background:rgba(255,255,255,.1)"] {
    background: #f8fafc;
    border: 1px solid #dbe4ee;
  }
  .yk-case-body div[style*="background:rgba(212,175,55"] {
    background: #fff8df;
    border-color: #e6c65a;
  }
  .yk-case-body a:not(.btn-gold) {
    color: #0f4c81;
    background: #fff;
    border-color: #cbd5e1;
  }
  .yk-case-body .btn-gold {
    color: var(--navy);
  }

  @media (max-width: 900px) {
    .duty-diagram {
      grid-template-columns: 1fr;
      gap: 16px;
    }
    .duty-arrow {
      transform: rotate(90deg);
    }
    .scope-grid {
      grid-template-columns: 1fr;
    }
    .mou-compare {
      grid-template-columns: 1fr;
    }
  }
  .gb-2col {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
  }
  .gb-3col {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 16px;
  }
  .gb-2col-sm {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
  }
  @media (max-width: 720px) {
    .gb-2col,
    .gb-3col,
    .gb-2col-sm {
      grid-template-columns: 1fr;
    }
  }
  @media (max-width: 720px) {
    #faq-list .faq-body {
      padding-left: 24px;
    }
    .roadmap-3col {
      grid-template-columns: 1fr;
    }
    .roadmap-grid {
      grid-template-columns: 1fr;
    }
  }
  .mini-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-top: 14px;
    color: var(--navy);
    font-weight: 900;
    text-decoration: none;
    border-bottom: 2px solid var(--gold);
  }
  .mini-link:hover {
    color: var(--gold);
  }
  .board-guide-section {
    background: #fff;
    padding: 72px 0;
    border-bottom: 1px solid #e2e8f0;
  }
  .board-guide-section.alt {
    background: var(--bg);
  }
  .board-guide-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 16px;
    margin-top: 32px;
  }
  .board-guide-card {
    background: #fff;
    border: 1px solid #dbe4ee;
    border-radius: 16px;
    padding: 22px;
    box-shadow: 0 10px 24px rgba(15, 39, 66, 0.06);
  }
  .board-guide-card strong {
    display: block;
    color: var(--navy);
    font-size: 1rem;
    margin-bottom: 8px;
  }
  .board-guide-card p {
    margin: 0;
    color: var(--text-soft);
    font-size: 0.9rem;
    line-height: 1.75;
  }
  .board-guide-card .num {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: rgba(212, 175, 55, 0.16);
    color: var(--navy);
    font-weight: 900;
    margin-bottom: 12px;
  }
  .board-guide-note {
    margin-top: 28px;
    background: #eff6ff;
    border-left: 5px solid #2563eb;
    border-radius: 0 14px 14px 0;
    padding: 18px 20px;
    color: #1e3a5f;
    line-height: 1.9;
  }
  .board-guide-checklist {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 12px;
    margin-top: 28px;
  }
  .board-guide-checklist li {
    list-style: none;
    background: #fff;
    border: 1px solid #dbe4ee;
    border-radius: 12px;
    padding: 14px 16px;
    color: var(--text);
    font-size: 0.9rem;
    line-height: 1.7;
  }
  .board-guide-checklist li::before {
    content: "□";
    font-weight: 900;
    color: var(--gold);
    margin-right: 8px;
  }
  .edu-voices-mini-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 12px;
    margin: 22px 0 30px;
  }
  .edu-voices-examples {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 16px;
    margin: 28px 0;
  }
  .edu-voices-example {
    background: #fff;
    border: 1px solid #dbe4ee;
    border-radius: 16px;
    padding: 20px;
    box-shadow: 0 10px 24px rgba(15, 39, 66, 0.06);
  }
  .edu-voices-example h3 {
    font-size: 1rem;
    color: var(--navy);
    margin: 0 0 8px;
    line-height: 1.5;
  }
  .edu-voices-example p {
    margin: 0 0 10px;
    color: var(--text);
    font-size: 0.88rem;
    line-height: 1.75;
  }
  .edu-voices-example a {
    font-weight: 900;
    color: var(--navy);
    text-decoration: underline;
    text-underline-offset: 3px;
  }
  .board-guide-links {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 12px;
    margin-top: 24px;
  }
  .board-guide-links a {
    display: block;
    background: #fff;
    border: 1px solid #dbe4ee;
    border-radius: 12px;
    padding: 15px 16px;
    color: var(--navy);
    font-weight: 900;
    text-decoration: none;
    line-height: 1.5;
  }
  .board-guide-links a:hover {
    border-color: var(--gold);
    box-shadow: 0 8px 20px rgba(15, 39, 66, 0.08);
  }
  @media (max-width: 900px) {
    .board-guide-checklist {
      grid-template-columns: 1fr 1fr;
    }
    .edu-voices-mini-grid {
      grid-template-columns: 1fr 1fr;
    }
  }
  @media (max-width: 640px) {
    .board-guide-section {
      padding: 52px 0;
    }
    .board-guide-checklist,
    .edu-voices-mini-grid {
      grid-template-columns: 1fr;
    }
    .board-guide-card {
      padding: 18px;
    }
  }
  .desktop-nav .nav-item.has-dropdown:last-of-type .mega-menu {
    left: auto;
    right: 0;
    transform: translateY(10px);
  }
  .desktop-nav .nav-item.has-dropdown:last-of-type:hover .mega-menu,
  .desktop-nav .nav-item.has-dropdown:last-of-type.is-open .mega-menu {
    transform: translateY(0);
  }

  .page-hero {
    position: relative;
    overflow: hidden;
  }
  .page-hero-bg-img {
    position: absolute;
    inset: 0;
    z-index: 0;
  }
  .page-hero-bg-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: brightness(1.05);
  }
  .page-hero-bg-img::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(
      160deg,
      rgba(5, 17, 31, 0.32) 0%,
      rgba(5, 17, 31, 0.14) 60%,
      rgba(5, 17, 31, 0.05) 100%
    );
  }
  .page-hero-inner {
    position: relative;
    z-index: 1;
  }

  /* ↓ Photo hero overrides — keep white text on photo background ↓ */
  .page-hero {
    background: transparent;
    border-top: none;
    border-bottom: none;
  }
  .page-hero h1 {
    color: #fff;
  }
  .page-hero h1 em {
    color: var(--gold-lt);
  }
  .page-hero p {
    color: rgba(255, 255, 255, 0.88);
  }
  .page-hero h1,
  .page-hero p {
    text-shadow: 0 2px 12px rgba(5, 17, 31, 0.46);
  }
  .page-hero-kicker {
    background: rgba(212, 175, 55, 0.18);
    border: 1px solid rgba(212, 175, 55, 0.4);
    color: var(--gold-lt);
  }
  .hero-actions .btn-outline {
    color: #fff;
    border-color: rgba(255, 255, 255, 0.5);
  }
  .hero-actions .btn-outline:hover {
    background: rgba(255, 255, 255, 0.12);
    border-color: rgba(255, 255, 255, 0.8);
  }

  /* Stage26: education-board action framing */
  .action-brief {
    background: #fff;
    border: 1px solid #dbe4ee;
    border-radius: 18px;
    padding: clamp(22px, 3vw, 34px);
    box-shadow: 0 12px 30px rgba(15, 39, 66, 0.06);
  }
  .action-brief h3 {
    font-family: "Noto Serif JP", serif;
    color: var(--navy);
    font-size: 1.15rem;
    margin: 0 0 10px;
  }
  .action-brief p {
    font-size: 0.95rem;
    line-height: 1.9;
    color: var(--text);
    margin: 0 0 12px;
  }
  .action-brief p:last-child {
    margin-bottom: 0;
  }
  .action-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
    margin: 24px 0;
  }
  .action-item {
    background: #f8fafc;
    border: 1px solid #dbe4ee;
    border-left: 5px solid var(--gold);
    border-radius: 14px;
    padding: 18px 18px 16px;
  }
  .action-item strong {
    display: block;
    color: var(--navy);
    font-size: 0.98rem;
    margin-bottom: 6px;
  }
  .action-item span {
    display: block;
    color: var(--text-soft);
    font-size: 0.88rem;
    line-height: 1.7;
  }
  .document-request-box {
    background: #f7fbff;
    border: 1px solid #bfdbfe;
    border-radius: 16px;
    padding: 22px;
    margin-top: 22px;
  }
  .document-request-box h3 {
    font-family: "Noto Serif JP", serif;
    color: #1d4ed8;
    margin: 0 0 10px;
    font-size: 1.12rem;
  }
  .document-request-list {
    columns: 2;
    column-gap: 28px;
    margin: 12px 0 0;
    padding-left: 1.2rem;
    color: var(--text);
    font-size: 0.92rem;
    line-height: 1.85;
  }
  .absence-warning {
    background: linear-gradient(145deg, #fff7ed, #fff);
    border: 2px solid #f59e0b;
    border-radius: 18px;
    padding: 24px;
    margin-top: 22px;
  }
  .absence-warning h3 {
    font-family: "Noto Serif JP", serif;
    color: #92400e;
    margin: 0 0 10px;
    font-size: 1.16rem;
  }
  .absence-warning p {
    color: #78350f;
    font-size: 0.94rem;
    line-height: 1.9;
    margin: 0 0 12px;
  }
  .ed-deep-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: linear-gradient(135deg, #f59e0b, #d97706);
    color: #fff;
    border-radius: 999px;
    padding: 12px 20px;
    font-weight: 900;
    text-decoration: none;
    box-shadow: 0 8px 22px rgba(217, 119, 6, 0.18);
  }
  .ed-deep-link:hover {
    transform: translateY(-1px);
    box-shadow: 0 10px 26px rgba(217, 119, 6, 0.24);
  }
  .ed-deep-link.prominent {
    display: flex;
    justify-content: center;
    align-items: center;
    width: min(720px, 100%);
    box-sizing: border-box;
    margin: 24px auto 16px;
    padding: 18px 28px;
    border-radius: 18px;
    font-size: 1.12rem;
    line-height: 1.5;
    box-shadow: 0 14px 32px rgba(217, 119, 6, 0.26);
    border: 2px solid rgba(255, 255, 255, 0.65);
  }
  .ed-deep-link.prominent::after {
    content: "→";
    font-size: 1.15rem;
  }
  .municipal-voice-list {
    list-style: none;
    margin: 26px 0 0;
    padding: 0;
    border-top: 1px solid var(--line);
  }
  .municipal-voice-list li {
    margin: 0;
    padding: 18px 0;
    border-bottom: 1px solid var(--line);
    display: grid;
    grid-template-columns: minmax(8rem, 12rem) 1fr;
    gap: 18px;
    align-items: start;
  }
  .municipal-voice-list a {
    font-weight: 900;
    color: var(--navy);
    text-decoration: underline;
    text-underline-offset: 4px;
    text-decoration-thickness: 1px;
    font-size: 1.04rem;
    line-height: 1.45;
  }
  .municipal-voice-list a strong {
    display: block;
    font-size: 1.2rem;
    color: #0b2a4a;
    margin-bottom: 2px;
  }
  .municipal-voice-list span {
    display: block;
    color: var(--text);
    font-size: 0.94rem;
    line-height: 1.85;
  }
  .municipal-voice-list em {
    font-style: normal;
    font-weight: 900;
    color: #b45309;
    background: #fff8df;
    border-radius: 6px;
    padding: 2px 6px;
    margin-right: 6px;
  }
  @media (max-width: 720px) {
    .municipal-voice-list li {
      grid-template-columns: 1fr;
      gap: 8px;
    }
    .ed-deep-link.prominent {
      font-size: 1rem;
      padding: 16px 18px;
    }
  }
  @media (max-width: 900px) {
    .action-grid {
      grid-template-columns: 1fr;
    }
    .document-request-list {
      columns: 1;
    }
  }

  .article137-focus {
    background: #fff7ed;
    padding: 72px 0;
    border-top: 4px solid var(--gold);
    border-bottom: 1px solid #fed7aa;
  }
  .article137-focus .section-title {
    max-width: 900px;
  }
  .article137-lead {
    max-width: 920px;
    border-left: 6px solid var(--gold);
    padding: 4px 0 4px 22px;
    margin: 24px 0 28px;
  }
  .article137-lead p {
    font-size: 1.02rem;
    line-height: 2;
    color: #1f2937;
    margin: 0 0 1.1em;
  }
  .article137-table {
    width: 100%;
    border-collapse: collapse;
    margin: 28px 0;
    background: #fff;
    border: 1px solid #e2e8f0;
  }
  .article137-table th {
    background: #1e3a5f;
    color: #fff;
    text-align: left;
    font-size: 0.9rem;
    padding: 14px 16px;
  }
  .article137-table td {
    border: 1px solid #e2e8f0;
    vertical-align: top;
    padding: 14px 16px;
    line-height: 1.85;
    color: #334155;
    font-size: 0.92rem;
  }
  .article137-conclusion {
    background: #fff;
    border: 2px solid #d97706;
    border-radius: 14px;
    padding: 24px 28px;
    margin-top: 30px;
  }
  .article137-conclusion h3 {
    font-size: 1.25rem;
    color: #92400e;
    margin: 0 0 14px;
  }
  .article137-conclusion p {
    line-height: 2;
    color: #1f2937;
  }
  .article137-note {
    font-size: 0.92rem;
    color: #64748b;
    background: #f8fafc;
    border-left: 4px solid #94a3b8;
    padding: 10px 14px;
    margin-top: 16px;
  }

  /* Stage46: 教育委員会向けページ 重要資料カードの視認性改善 */
  .key-materials-section {
    background: #f6f8fb;
    padding: 72px 0;
    border-top: 1px solid #d8e0ec;
    border-bottom: 1px solid #d8e0ec;
  }
  .key-materials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(290px, 1fr));
    gap: 22px;
    margin-top: 34px;
    align-items: stretch;
  }
  .key-materials-grid > a {
    display: flex;
    flex-direction: column;
    background: #fff;
    border: 2px solid #c9d6e7;
    border-radius: 16px;
    overflow: hidden;
    text-decoration: none;
    box-shadow: 0 10px 24px rgba(15, 35, 70, 0.1);
    transition:
      border-color 0.18s ease,
      box-shadow 0.18s ease,
      transform 0.18s ease;
    min-height: 100%;
  }
  .key-materials-grid > a:hover {
    border-color: #17345c;
    box-shadow: 0 14px 32px rgba(15, 35, 70, 0.16);
    transform: translateY(-2px);
  }
  .key-materials-grid > a > img {
    width: 100%;
    height: 168px;
    object-fit: cover;
    object-position: 0 8%;
    display: block;
    border-bottom: 2px solid #dbe4ef;
    background: #eef2f7;
  }
  .key-materials-grid > a > div {
    padding: 18px 20px 20px;
    display: flex;
    flex-direction: column;
    flex: 1 1 auto;
  }
  .key-materials-grid > a > div > div:first-child {
    min-height: 28px;
    margin-bottom: 12px;
  }
  .key-materials-grid > a > div > div:first-child span:last-child {
    border: 1px solid rgba(120, 90, 30, 0.18);
    box-shadow: 0 1px 0 rgba(255, 255, 255, 0.65) inset;
  }
  .key-materials-grid > a > div > div:nth-child(2) {
    font-size: 1.03rem;
    line-height: 1.55;
    color: #0f2f57;
    margin-bottom: 9px;
    font-weight: 900;
  }
  .key-materials-grid > a > div > div:nth-child(3) {
    font-size: 0.9rem;
    line-height: 1.75;
    color: #415268;
  }
  .key-materials-grid > a > div > div:last-child {
    margin-top: auto;
    padding-top: 14px;
    font-size: 0.86rem;
    font-weight: 900;
    color: #17345c;
    text-decoration: underline;
    text-underline-offset: 4px;
  }
  @media (max-width: 720px) {
    .key-materials-section {
      padding: 48px 0;
    }
    .key-materials-grid {
      grid-template-columns: 1fr;
    }
    .key-materials-grid > a > img {
      height: 150px;
    }
  }

  .board-chain-direct {
    background: linear-gradient(180deg, #eff6ff 0%, #ffffff 100%);
    padding: 42px 0;
    border-top: 1px solid rgba(15, 39, 71, 0.06);
    border-bottom: 1px solid rgba(15, 39, 71, 0.08);
  }

  .board-chain-card {
    background: #fff;
    border: 1px solid rgba(15, 39, 71, 0.14);
    border-left: 8px solid #1d4ed8;
    border-radius: 0 18px 18px 0;
    box-shadow: 0 14px 34px rgba(5, 17, 31, 0.1);
    padding: 28px 30px;
  }

  .board-chain-badge {
    display: inline-flex;
    padding: 5px 12px;
    border-radius: 999px;
    background: rgba(29, 78, 216, 0.09);
    color: #1d4ed8;
    font-size: 0.74rem;
    font-weight: 900;
    letter-spacing: 0.08em;
    margin-bottom: 12px;
  }

  .board-chain-card h2 {
    font-family: "Noto Serif JP", serif;
    color: var(--navy);
    font-size: clamp(1.35rem, 2.5vw, 2rem);
    line-height: 1.45;
    margin: 0 0 12px;
  }

  .board-chain-card p {
    color: var(--text);
    font-size: 0.98rem;
    line-height: 1.95;
    margin: 0 0 18px;
  }

  .board-chain-paths {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
  }

  .board-chain-path {
    display: flex;
    min-width: 0;
    flex-direction: column;
    gap: 6px;
    padding: 18px 20px;
    border: 1px solid rgba(15, 39, 71, 0.14);
    border-radius: 14px;
    color: var(--navy);
    text-decoration: none;
    background: #f8fafc;
    transition:
      border-color 0.2s ease,
      box-shadow 0.2s ease,
      transform 0.2s ease;
  }

  .board-chain-path:hover {
    border-color: #1d4ed8;
    box-shadow: 0 10px 24px rgba(29, 78, 216, 0.12);
    transform: translateY(-2px);
  }

  .board-chain-path--primary {
    background: linear-gradient(135deg, #1d4ed8 0%, #17345c 100%);
    color: #fff;
  }

  .board-chain-path-step {
    font-size: 0.72rem;
    font-weight: 900;
    letter-spacing: 0.08em;
    color: #1d4ed8;
  }

  .board-chain-path--primary .board-chain-path-step {
    color: #fde68a;
  }
  .board-chain-path strong {
    font-size: 1rem;
    line-height: 1.55;
  }
  .board-chain-path-desc {
    color: #475569;
    font-size: 0.86rem;
    line-height: 1.7;
  }
  .board-chain-path--primary .board-chain-path-desc {
    color: rgba(255, 255, 255, 0.82);
  }

  @media (max-width: 760px) {
    .board-chain-direct {
      padding: 32px 0;
    }
    .board-chain-card {
      padding: 24px 20px;
      border-left-width: 6px;
    }
    .board-chain-paths {
      grid-template-columns: 1fr;
    }
  }

  /* Page-specific styles for guide-board.html */
  body.guide-board-direct-fixed {
    background: #fff;
  }
  body.guide-board-direct-fixed #board-first-reading {
    display: none;
  }
  body.guide-board-direct-fixed main,
  body.guide-board-direct-fixed .board-guide-section,
  body.guide-board-direct-fixed section {
    background: #fff;
  }
  body.guide-board-direct-fixed #board-bluf-v22,
  body.guide-board-direct-fixed #board-fact-accordion-v31,
  body.guide-board-direct-fixed .board-guide-section > .wrap,
  body.guide-board-direct-fixed .board-guide-section .wrap {
    width: min(calc(100% - 48px), 1120px);
    max-width: 1120px;
    margin-left: auto;
    margin-right: auto;
    box-sizing: border-box;
  }
  body.guide-board-direct-fixed #board-bluf-v22 {
    margin-bottom: 10px;
  }
  body.guide-board-direct-fixed .board-fact-accordion {
    padding: 0;
    margin: 0 auto 10px;
  }
  body.guide-board-direct-fixed .board-guide-section {
    padding: 0;
    margin: 0;
    border: 0;
  }
  body.guide-board-direct-fixed .board-auto-accordion {
    width: 100%;
    background: #fff;
    border: 1px solid #d7dee8;
    border-radius: 8px;
    margin: 0 auto 8px;
    overflow: hidden;
    box-shadow: none;
  }
  body.guide-board-direct-fixed .board-auto-accordion summary {
    font-family: "Noto Sans JP", sans-serif;
    font-size: clamp(0.96rem, 1.25vw, 1.08rem);
    line-height: 1.55;
    font-weight: 800;
    color: #172033;
    border-left: 0;
    padding: 14px 18px;
    cursor: pointer;
    list-style: none;
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: #fff;
    gap: 14px;
    letter-spacing: 0;
  }
  body.guide-board-direct-fixed
    .board-auto-accordion
    summary::-webkit-details-marker {
    display: none;
  }
  body.guide-board-direct-fixed .board-auto-accordion summary::after {
    content: "";
    font-family: system-ui, sans-serif;
    width: 18px;
    height: 18px;
    flex-shrink: 0;
    background: no-repeat center/18px 18px
      url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='18' height='18' viewBox='0 0 24 24' fill='none' stroke='%23475569' stroke-width='2.2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m9 18 6-6-6-6'/%3E%3C/svg%3E");
    transform: rotate(0deg);
    transition: transform 0.18s ease;
  }
  body.guide-board-direct-fixed .board-auto-accordion[open] summary::after {
    transform: rotate(90deg);
  }
  body.guide-board-direct-fixed .board-auto-accordion[open] summary {
    background: #f8fafc;
    border-bottom: 1px solid #e2e8f0;
  }
  body.guide-board-direct-fixed .board-auto-accordion .chapter-content {
    padding: 16px 20px 20px;
    line-height: 1.85;
    color: #1e293b;
    font-size: 0.94rem;
  }
  body.guide-board-direct-fixed .board-auto-accordion .section-kicker {
    display: none;
  }
  @media (max-width: 780px) {
    body.guide-board-direct-fixed #board-bluf-v22,
    body.guide-board-direct-fixed #board-fact-accordion-v31,
    body.guide-board-direct-fixed .board-guide-section > .wrap,
    body.guide-board-direct-fixed .board-guide-section .wrap {
      width: min(calc(100% - 32px), 1120px);
    }
    body.guide-board-direct-fixed .board-auto-accordion summary {
      font-size: 0.95rem;
      padding: 13px 15px;
    }
    body.guide-board-direct-fixed .board-auto-accordion .chapter-content {
      padding: 16px 15px 18px;
    }
  }
  body.guide-board-direct-fixed .chapter-block {
    border-color: #d7dee8;
    border-radius: 8px;
    box-shadow: none;
  }
  body.guide-board-direct-fixed .chapter-block summary {
    font-family: "Noto Sans JP", sans-serif;
    font-size: 0.95rem;
    line-height: 1.55;
    font-weight: 800;
    color: #172033;
    border-left: 0;
    padding: 13px 16px;
    background: #fff;
  }
  body.guide-board-direct-fixed .chapter-block[open] summary {
    background: #f8fafc;
  }
  body.guide-board-direct-fixed .chapter-block .chapter-content {
    font-size: 0.93rem;
    line-height: 1.85;
  }
  #principal-liability {
    background: #f8fafc;
    padding: 44px 0;
    border-top: 1px solid #d7dee8;
    border-bottom: 1px solid #d7dee8;
  }
  #principal-liability .section-kicker {
    display: none;
  }
  #principal-liability .section-title {
    font-family: "Noto Sans JP", sans-serif;
    font-size: clamp(1.45rem, 2.3vw, 2rem);
    line-height: 1.45;
    letter-spacing: 0;
    color: #172033;
  }
  #principal-liability .section-lead {
    max-width: 860px;
    font-size: 0.96rem;
  }
  #principal-liability > .wrap > svg[role="img"],
  #principal-liability > .wrap > svg[role="img"] + p,
  #principal-liability > .wrap > svg[role="img"] + p + div,
  #principal-liability > .wrap > svg[role="img"] + p + div + div {
    display: none;
  }
  .principal-risk-brief {
    display: grid;
    grid-template-columns: minmax(0, 1.04fr) minmax(260px, 0.72fr);
    gap: 18px;
    align-items: stretch;
    margin: 26px 0 26px;
  }
  .principal-risk-main,
  .principal-risk-evidence-card {
    background: #fff;
    border: 1px solid #d7dee8;
    border-radius: 8px;
    box-shadow: none;
  }
  .principal-risk-main {
    padding: 22px 24px;
  }
  .principal-risk-main h3 {
    font-family: "Noto Sans JP", sans-serif;
    color: #172033;
    font-size: 1.12rem;
    line-height: 1.55;
    margin: 0 0 10px;
  }
  .principal-risk-main p,
  .principal-risk-main li {
    color: #334155;
    font-size: 0.9rem;
    line-height: 1.85;
  }
  .principal-risk-main ul {
    margin: 14px 0 0;
    padding-left: 1.1rem;
  }
  .principal-risk-flow {
    display: block;
    width: 100%;
    height: auto;
    margin: 0 0 16px;
  }
  .principal-risk-caution {
    margin: 14px 0 0;
    padding-top: 12px;
    border-top: 1px solid #e2e8f0;
    color: #64748b;
    font-size: 0.82rem;
  }
  .principal-risk-evidence-card {
    margin: 0;
    overflow: hidden;
  }
  .principal-risk-evidence-card img {
    display: block;
    width: 100%;
    height: auto;
    max-height: 420px;
    object-fit: cover;
    object-position: top center;
    background: #eef2f7;
  }
  .principal-risk-evidence-card figcaption {
    padding: 12px 14px;
    color: #64748b;
    font-size: 0.78rem;
    line-height: 1.65;
  }
  @media (max-width: 840px) {
    .principal-risk-brief {
      grid-template-columns: 1fr;
    }
  }

  /* Page-specific styles for guide-board.html */
  /* 一次資料カード：白背景でも読めるようにコントラスト補正 */
  body.guide-board-direct-fixed .key-materials-section,
  .key-materials-section {
    background: #fff;
    color: #1e293b;
    padding: 64px 0;
    border-top: 1px solid #d8e0ec;
    border-bottom: 1px solid #d8e0ec;
  }
  body.guide-board-direct-fixed .key-materials-section .wrap,
  .key-materials-section .wrap {
    width: min(calc(100% - 48px), 1120px);
    max-width: 1120px;
    margin-left: auto;
    margin-right: auto;
  }
  body.guide-board-direct-fixed .key-materials-section .section-kicker,
  .key-materials-section .section-kicker {
    color: #0f2742;
    background: #fff8df;
    border: 1px solid #d6a724;
    border-radius: 999px;
    padding: 5px 12px;
    display: inline-flex;
    font-weight: 900;
  }
  body.guide-board-direct-fixed .key-materials-section .section-title,
  .key-materials-section .section-title {
    color: #0f2742;
    text-shadow: none;
  }
  body.guide-board-direct-fixed .key-materials-section .section-lead,
  .key-materials-section .section-lead {
    color: #334155;
    font-size: 0.96rem;
    line-height: 1.9;
  }
  body.guide-board-direct-fixed .key-materials-grid,
  .key-materials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
    margin-top: 30px;
    align-items: stretch;
  }
  body.guide-board-direct-fixed .key-materials-grid > a,
  .key-materials-grid > a {
    display: flex;
    flex-direction: column;
    background: #ffffff;
    color: #1e293b;
    border: 2px solid #c8d4e3;
    border-radius: 18px;
    overflow: hidden;
    text-decoration: none;
    box-shadow: none;
    min-height: 100%;
  }
  body.guide-board-direct-fixed .key-materials-grid > a:hover,
  .key-materials-grid > a:hover {
    border-color: #1d4ed8;
    box-shadow: none;
    transform: none;
  }
  body.guide-board-direct-fixed .key-materials-grid > a > img,
  .key-materials-grid > a > img {
    width: 100%;
    height: 176px;
    object-fit: cover;
    object-position: 0 8%;
    display: block;
    background: #eef2f7;
    border-bottom: 2px solid #dbe4ee;
    filter: none;
    opacity: 1;
  }
  body.guide-board-direct-fixed .key-materials-grid > a > div,
  .key-materials-grid > a > div {
    padding: 18px 20px 20px;
    color: #1e293b;
    background: #fff;
    display: flex;
    flex-direction: column;
    flex: 1 1 auto;
  }
  body.guide-board-direct-fixed .key-materials-grid > a > div span,
  .key-materials-grid > a > div span {
    opacity: 1;
  }
  body.guide-board-direct-fixed
    .key-materials-grid
    > a
    > div
    > div:first-child
    span:last-child,
  .key-materials-grid > a > div > div:first-child span:last-child {
    color: #0f2742;
    background: #fff3bf;
    border: 1px solid #d6a724;
    box-shadow: none;
  }
  body.guide-board-direct-fixed
    .key-materials-grid
    > a
    > div
    > div:nth-child(2),
  .key-materials-grid > a > div > div:nth-child(2) {
    color: #0f2742;
    font-size: 1.02rem;
    font-weight: 900;
    line-height: 1.55;
    margin-bottom: 8px;
  }
  body.guide-board-direct-fixed
    .key-materials-grid
    > a
    > div
    > div:nth-child(3),
  .key-materials-grid > a > div > div:nth-child(3) {
    color: #334155;
    font-size: 0.9rem;
    line-height: 1.75;
  }
  body.guide-board-direct-fixed .key-materials-grid > a > div > div:last-child,
  .key-materials-grid > a > div > div:last-child {
    margin-top: auto;
    padding-top: 14px;
    color: #0f2742;
    font-size: 0.86rem;
    font-weight: 900;
    text-decoration: underline;
    text-underline-offset: 4px;
  }
  body.guide-board-direct-fixed .key-materials-section a,
  .key-materials-section a {
    color: #0f2742;
  }
  body.guide-board-direct-fixed .key-materials-section a[rel="noopener"],
  .key-materials-section a[rel="noopener"] {
    background: #f8fafc;
    border-color: #cbd5e1;
  }
  body.guide-board-direct-fixed .key-materials-section a[rel="noopener"] div,
  .key-materials-section a[rel="noopener"] div {
    color: #1e293b;
  }
  body.guide-board-direct-fixed
    .key-materials-section
    a[rel="noopener"]
    div
    div,
  .key-materials-section a[rel="noopener"] div div {
    color: #1e293b;
  }
  @media (max-width: 720px) {
    body.guide-board-direct-fixed .key-materials-section .wrap,
    .key-materials-section .wrap {
      width: min(calc(100% - 32px), 1120px);
    }
    body.guide-board-direct-fixed .key-materials-grid,
    .key-materials-grid {
      grid-template-columns: 1fr;
      gap: 18px;
    }
    body.guide-board-direct-fixed .key-materials-grid > a > img,
    .key-materials-grid > a > img {
      height: 156px;
    }
  }

  /* Page-specific styles for guide-board.html */
  body.guide-board-direct-fixed {
    --shadow-sm: none;
    --shadow-md: none;
    --shadow-lg: none;
  }
  body.guide-board-direct-fixed,
  body.guide-board-direct-fixed *,
  body.guide-board-direct-fixed *::before,
  body.guide-board-direct-fixed *::after {
    box-shadow: none;
    text-shadow: none;
  }
  body.guide-board-direct-fixed main a,
  body.guide-board-direct-fixed main button,
  body.guide-board-direct-fixed main summary {
    transition:
      border-color 0.16s ease,
      background-color 0.16s ease,
      color 0.16s ease;
  }
  body.guide-board-direct-fixed main a:hover,
  body.guide-board-direct-fixed main button:hover,
  body.guide-board-direct-fixed main summary:hover {
    box-shadow: none;
    transform: none;
  }
  body.guide-board-direct-fixed img {
    filter: none;
  }
  body.guide-board-direct-fixed .page-hero-kicker,
  body.guide-board-direct-fixed .pta-kicker,
  body.guide-board-direct-fixed main .section-kicker {
    display: none;
  }
  body.guide-board-direct-fixed .scope-card-label,
  body.guide-board-direct-fixed .mou-col-label {
    display: block;
    margin: 0 0 10px;
    padding: 0;
    border: 0;
    border-radius: 0;
    background: transparent;
    color: #172033;
    font-size: 0.92rem;
    font-weight: 800;
    letter-spacing: 0;
    text-transform: none;
  }

  /* Page-specific styles for guide-board.html */
  body.guide-board-direct-fixed #board-bluf-v22,
  body.guide-board-direct-fixed #board-fact-accordion-v31 {
    display: none;
  }
  main
    > section:not(#board-executive-brief):not(#principal-liability):not(
      #board-jp-guideline
    ) {
    display: none;
  }
  main > #board-executive-brief,
  main > #principal-liability {
    display: block;
  }
  body.guide-board-direct-fixed
    main
    > section:not(#board-executive-brief):not(#principal-liability):not(
      #board-jp-guideline
    ) {
    display: none;
  }
  body.guide-board-direct-fixed main > #board-executive-brief,
  body.guide-board-direct-fixed main > #principal-liability {
    display: block;
  }
  body.guide-board-direct-fixed #board-executive-brief {
    background: linear-gradient(180deg, #fff 0%, #f8fbff 52%, #fff 100%);
    border-top: 1px solid #dbe4ee;
    border-bottom: 1px solid #dbe4ee;
    padding: 56px 0 68px;
  }
  .gbv-wrap {
    width: min(calc(100% - 48px), 1120px);
    margin-inline: auto;
  }
  .gbv-head {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(260px, 360px);
    gap: 28px;
    align-items: end;
    margin-bottom: 28px;
  }
  .gbv-head h2 {
    font-family: "Noto Sans JP", sans-serif;
    font-size: clamp(1.62rem, 2.8vw, 2.32rem);
    line-height: 1.42;
    letter-spacing: 0;
    color: #12243b;
    margin: 0 0 12px;
  }
  .gbv-head p,
  .gbv-note,
  .gbv-source p {
    color: #334155;
    line-height: 1.95;
    font-size: 0.98rem;
    margin: 0;
  }
  .gbv-principle {
    border-left: 4px solid #d6a724;
    padding: 8px 0 8px 18px;
    color: #12243b;
    font-weight: 800;
    line-height: 1.8;
  }
  .gbv-stack {
    display: flex;
    flex-direction: column;
    gap: 24px;
  }
  .gbv-figure {
    margin: 0;
    background: rgba(255, 255, 255, 0.86);
    border: 1px solid #d7e2ee;
    border-radius: 8px;
    overflow: hidden;
  }
  .gbv-figure figcaption {
    border-top: 1px solid #e2e8f0;
    padding: 12px 18px 14px;
    color: #475569;
    font-size: 0.86rem;
    line-height: 1.75;
    background: rgba(248, 250, 252, 0.92);
  }
  .gbv-scroll {
    overflow-x: auto;
    padding: 18px;
  }
  .gbv-scroll svg {
    display: block;
    width: 100%;
    min-width: 820px;
    height: auto;
    font-family: "Noto Sans JP", sans-serif;
  }
  .gbv-two {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 18px;
  }
  .gbv-legal {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: 22px;
    align-items: start;
    padding: 6px 0 0;
  }
  .gbv-legal .gbv-scroll svg {
    min-width: 760px;
  }
  .gbv-law-text {
    border-left: 4px solid #17345c;
    padding: 4px 0 4px 18px;
  }
  .gbv-law-text h3 {
    font-family: "Noto Sans JP", sans-serif;
    margin: 0 0 12px;
    color: #12243b;
    font-size: 1.2rem;
    line-height: 1.55;
  }
  .gbv-law-text p {
    margin: 0 0 12px;
    color: #334155;
    line-height: 1.95;
    font-size: 0.96rem;
  }
  .gbv-statute {
    margin: 16px 0;
    padding: 16px 18px;
    background: #f8fafc;
    border: 1px solid #cbd5e1;
    border-radius: 8px;
    color: #172033;
    font-weight: 800;
    line-height: 1.9;
  }
  .gbv-law-points {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    margin-top: 14px;
    grid-column: 1 / -1;
  }
  .gbv-law-points div {
    border-top: 1px solid #e2e8f0;
    padding-top: 10px;
    color: #334155;
    font-size: 0.9rem;
    line-height: 1.8;
  }
  .gbv-law-points strong {
    color: #12243b;
  }
  .gbv-source {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(260px, 0.74fr);
    gap: 22px;
    align-items: start;
    padding: 24px 0 0;
  }
  .gbv-source h3 {
    font-family: "Noto Sans JP", sans-serif;
    margin: 0 0 10px;
    color: #12243b;
    font-size: 1.18rem;
    line-height: 1.55;
  }
  .gbv-links {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin: 0;
    padding: 0;
    list-style: none;
  }
  .gbv-links a {
    display: block;
    color: #123d66;
    text-decoration: underline;
    text-underline-offset: 4px;
    font-weight: 800;
    line-height: 1.65;
  }
  .gbv-links span {
    display: block;
    color: #64748b;
    font-size: 0.84rem;
    line-height: 1.7;
    margin-top: 2px;
  }
  body.guide-board-direct-fixed #board-jp-guideline,
  #board-jp-guideline {
    display: block;
    background: #fff;
    border-top: 1px solid #d8e0ec;
    padding: 72px 0;
  }
  .board-jp-shell {
    width: min(calc(100% - 48px), 1120px);
    margin-inline: auto;
  }
  .board-jp-intro {
    margin: 0 0 34px;
    padding: 0 0 24px;
    border-bottom: 3px solid #17345c;
  }
  .board-jp-intro h2 {
    font-family: "Noto Sans JP", sans-serif;
    font-size: clamp(1.55rem, 2.8vw, 2.18rem);
    line-height: 1.45;
    letter-spacing: 0;
    color: #12243b;
    margin: 0 0 12px;
    padding: 0;
    border: 0;
  }
  .board-jp-intro p {
    color: #334155;
    font-size: 0.98rem;
    line-height: 1.95;
    margin: 0;
  }
  .board-jp-article {
    color: #172033;
    font-family:
      "Noto Sans JP",
      -apple-system,
      BlinkMacSystemFont,
      "Segoe UI",
      Meiryo,
      sans-serif;
    font-size: 1rem;
    line-height: 1.95;
    letter-spacing: 0;
  }
  .board-jp-article .hero {
    padding: 0 0 28px;
    border-bottom: 4px solid #17345c;
    background: transparent;
  }
  .board-jp-article .kicker {
    margin: 0 0 12px;
    color: #17345c;
    font-size: 0.9rem;
    font-weight: 900;
    letter-spacing: 0.08em;
  }
  .board-jp-article .hero h2 {
    margin: 0;
    font-family: "Noto Sans JP", sans-serif;
    font-size: clamp(1.8rem, 3.8vw, 2.6rem);
    line-height: 1.35;
    letter-spacing: 0;
    color: #12243b;
  }
  .board-jp-article .lead {
    margin: 20px 0 0;
    color: #334155;
    font-size: 1.04rem;
    line-height: 2;
  }
  .board-jp-article section,
  .board-jp-article nav {
    margin-top: 42px;
    background: transparent;
  }
  .board-jp-article h2 {
    margin: 0 0 18px;
    padding: 6px 0 8px 16px;
    border-left: 5px solid #17345c;
    border-bottom: 1px solid #d8dee8;
    font-family: "Noto Sans JP", sans-serif;
    font-size: clamp(1.26rem, 2.1vw, 1.55rem);
    line-height: 1.5;
    letter-spacing: 0;
    color: #12243b;
  }
  .board-jp-article h3 {
    margin: 26px 0 10px;
    color: #17345c;
    font-size: 1.08rem;
    line-height: 1.55;
  }
  .board-jp-article p {
    margin: 1em 0;
    color: #334155;
    line-height: 1.95;
  }
  .board-jp-article ul,
  .board-jp-article ol {
    margin: 1em 0;
    padding-left: 1.6em;
  }
  .board-jp-article li {
    margin: 0.38em 0;
  }
  .board-jp-article a {
    color: #064f91;
    text-decoration-thickness: 0.08em;
    text-underline-offset: 0.18em;
  }
  .board-jp-article .primary-summary,
  .board-jp-article .toc,
  .board-jp-article .flow {
    margin-top: 34px;
    padding: 20px 22px;
    background: #f8fafc;
    border-left: 5px solid #17345c;
    border-radius: 0;
    box-shadow: none;
  }
  .board-jp-article .toc-list {
    columns: 2;
    column-gap: 2.5rem;
  }
  .board-jp-article .toc-list li {
    break-inside: avoid;
    margin: 0 0 0.45em;
  }
  .board-jp-article .diagram-figure {
    margin: 32px 0 36px;
    padding: 0;
    background: transparent;
    border: 0;
  }
  .board-jp-article .diagram-scroll {
    overflow-x: auto;
    padding-bottom: 8px;
  }
  .board-jp-article .diagram-scroll img {
    display: block;
    width: 100%;
    min-width: 760px;
    max-width: 100%;
    height: auto;
    margin: 0 auto;
  }
  .board-jp-article .diagram-figure figcaption {
    margin-top: 12px;
    color: #5d6878;
    font-size: 0.9rem;
    line-height: 1.75;
  }
  .board-jp-article .table-wrap {
    overflow-x: auto;
    border: 1px solid #d8dee8;
    margin-top: 18px;
  }
  .board-jp-article table {
    width: 100%;
    border-collapse: collapse;
    min-width: 720px;
  }
  .board-jp-article th,
  .board-jp-article td {
    border-bottom: 1px solid #d8dee8;
    padding: 12px 14px;
    vertical-align: top;
    text-align: left;
  }
  .board-jp-article th {
    background: #f1f5f9;
    color: #17345c;
    font-weight: 900;
  }
  .board-jp-article .footer-links {
    margin-top: 42px;
    padding-top: 24px;
    border-top: 1px solid #d8dee8;
    color: #5d6878;
    font-size: 0.92rem;
  }
  .gbv-svg-title {
    font-size: 18px;
    font-weight: 900;
    fill: #12243b;
  }
  .gbv-svg-label {
    font-size: 14px;
    font-weight: 800;
    fill: #12243b;
  }
  .gbv-svg-small {
    font-size: 12px;
    font-weight: 600;
    fill: #475569;
  }
  .gbv-svg-muted {
    fill: #f8fafc;
    stroke: #cbd5e1;
    stroke-width: 1.2;
  }
  .gbv-svg-school {
    fill: #eef6ff;
    stroke: #8db7df;
    stroke-width: 1.4;
  }
  .gbv-svg-pta {
    fill: #f3fbf6;
    stroke: #8bc69d;
    stroke-width: 1.4;
  }
  .gbv-svg-risk {
    fill: #fff7ed;
    stroke: #e7b657;
    stroke-width: 1.4;
  }
  .gbv-svg-red {
    fill: #fff1f2;
    stroke: #e48484;
    stroke-width: 1.4;
  }
  @media (max-width: 860px) {
    .gbv-head,
    .gbv-legal,
    .gbv-source,
    .gbv-two {
      grid-template-columns: 1fr;
    }
    .gbv-law-points {
      grid-template-columns: 1fr;
    }
    .gbv-wrap {
      width: min(calc(100% - 32px), 1120px);
    }
    .board-jp-shell {
      width: min(calc(100% - 32px), 1120px);
    }
    .board-jp-article .toc-list {
      columns: 1;
    }
    .board-jp-article .diagram-scroll img {
      min-width: 720px;
    }
    body.guide-board-direct-fixed #board-executive-brief {
      padding: 42px 0 54px;
    }
  }

  /* Page-specific styles for guide-board.html */
  body.guide-board-editorial .page-hero-kicker {
    text-transform: none;
    letter-spacing: 0.03em;
    border-radius: 3px;
  }
  body.guide-board-editorial .hero-actions,
  body.guide-board-editorial .board-chain-direct {
    display: none;
  }
  body.guide-board-editorial .page-hero--photo .page-hero-inner {
    max-width: 980px;
  }
  body.guide-board-editorial #board-executive-brief {
    background: #fff;
    padding: 68px 0 76px;
  }
  body.guide-board-editorial .gbv-wrap,
  body.guide-board-editorial .board-jp-shell {
    width: min(calc(100% - 40px), 960px);
  }
  body.guide-board-editorial .gbv-head,
  body.guide-board-editorial .gbv-two,
  body.guide-board-editorial .gbv-law-points,
  body.guide-board-editorial .gbv-source,
  body.guide-board-editorial .principal-risk-brief {
    grid-template-columns: 1fr;
    gap: 18px;
  }
  body.guide-board-editorial .gbv-head {
    align-items: start;
    margin-bottom: 38px;
  }
  body.guide-board-editorial .gbv-principle {
    max-width: 800px;
    padding: 10px 0 10px 20px;
    border-left: 4px solid #d6a724;
    background: transparent;
  }
  body.guide-board-editorial .gbv-stack {
    gap: 34px;
  }
  body.guide-board-editorial .gbv-figure,
  body.guide-board-editorial .principal-risk-main,
  body.guide-board-editorial .principal-risk-evidence-card,
  body.guide-board-editorial .gbv-statute,
  body.guide-board-editorial .board-jp-article .primary-summary,
  body.guide-board-editorial .board-jp-article .toc,
  body.guide-board-editorial .board-jp-article .flow {
    border-radius: 0;
    box-shadow: none;
  }
  body.guide-board-editorial .gbv-figure {
    border-left: 0;
    border-right: 0;
  }
  body.guide-board-editorial .gbv-two > *,
  body.guide-board-editorial .gbv-source > *,
  body.guide-board-editorial .gbv-law-points > div {
    border-radius: 0;
    box-shadow: none;
  }
  body.guide-board-editorial #principal-liability {
    padding: 60px 0;
  }
  body.guide-board-editorial .principal-risk-main,
  body.guide-board-editorial .principal-risk-evidence-card {
    border-left: 0;
    border-right: 0;
  }
  body.guide-board-editorial .key-materials-grid {
    display: block;
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
  }
  body.guide-board-editorial .key-materials-grid > a {
    display: grid;
    grid-template-columns: 180px minmax(0, 1fr);
    min-height: 0;
    margin: 0;
    border: 0;
    border-top: 1px solid #cbd5e1;
    border-radius: 0;
    box-shadow: none;
  }
  body.guide-board-editorial .key-materials-grid > a:last-child {
    border-bottom: 1px solid #cbd5e1;
  }
  body.guide-board-editorial .key-materials-grid > a > img {
    height: 100%;
    min-height: 150px;
    border: 0;
  }
  body.guide-board-editorial .key-materials-grid > a > div {
    padding: 20px 24px;
  }
  body.guide-board-editorial main a:hover,
  body.guide-board-editorial main summary:hover {
    transform: none;
    box-shadow: none;
  }
  @media (max-width: 720px) {
    body.guide-board-editorial .key-materials-grid > a {
      grid-template-columns: 1fr;
    }
    body.guide-board-editorial .key-materials-grid > a > img {
      min-height: 150px;
      height: 150px;
    }
  }

  /* Page-specific styles for guide-board.html */
  body.guide-board-editorial .board-jp-article .toc {
    display: none;
  }
  body.guide-board-editorial .gbv-figure,
  body.guide-board-editorial .board-jp-article .primary-summary,
  body.guide-board-editorial .board-jp-article .flow {
    border-radius: 0;
    box-shadow: none;
  }
  body.guide-board-editorial .gbv-scroll {
    padding: 14px 0;
  }
  body.guide-board-editorial .board-jp-article .primary-summary,
  body.guide-board-editorial .board-jp-article .flow {
    background: transparent;
    border-top: 1px solid #d8dee8;
    border-bottom: 1px solid #d8dee8;
    border-left: 0;
    padding: 20px 0;
  }

  /* Page-specific styles for guide-board.html */
  body.guide-board-editorial #principal-liability {
    display: block;
    background: #fff;
    padding: 66px 0 74px;
    border-top: 0;
    border-bottom: 1px solid #d7dee8;
  }
  .principal-liability-wrap {
    width: min(calc(100% - 48px), 960px);
    margin-inline: auto;
  }
  .principal-liability-label {
    margin: 0 0 10px;
    color: #6b7788;
    font-size: 0.78rem;
    font-weight: 900;
    letter-spacing: 0.08em;
  }
  #principal-liability-title {
    margin: 0 0 18px;
    padding: 0 0 15px;
    border: 0;
    border-bottom: 3px solid #d6a724;
    color: #172033;
    font-family: "Noto Serif JP", serif;
    font-size: clamp(1.55rem, 2.8vw, 2.18rem);
    line-height: 1.48;
  }
  .principal-liability-lead {
    max-width: 56rem;
    margin: 0;
    color: #334155;
    font-size: 1rem;
    line-height: 2;
  }
  .principal-liability-flow {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 46px minmax(0, 1fr) 46px minmax(
        0,
        1fr
      );
    align-items: center;
    margin: 30px 0 34px;
    padding: 20px 0;
    border-top: 1px solid #d8dee8;
    border-bottom: 1px solid #d8dee8;
  }
  .principal-liability-flow-item {
    min-width: 0;
    padding: 0 16px;
  }
  .principal-liability-flow-item strong {
    display: block;
    margin-bottom: 5px;
    color: #17345c;
    font-size: 0.95rem;
    line-height: 1.55;
  }
  .principal-liability-flow-item span {
    display: block;
    color: #526276;
    font-size: 0.84rem;
    line-height: 1.7;
  }
  .principal-liability-flow-arrow {
    color: #b44b42;
    font-size: 1.5rem;
    font-weight: 700;
    text-align: center;
  }
  .principal-liability-meaning {
    margin: 0 0 30px;
    padding: 4px 0 4px 20px;
    border-left: 4px solid #d6a724;
  }
  .principal-liability-meaning h3,
  .principal-liability-explanation h3 {
    margin: 0 0 10px;
    padding: 0;
    border: 0;
    color: #17345c;
    font-size: 1.12rem;
    line-height: 1.6;
  }
  .principal-liability-meaning p,
  .principal-liability-explanation p {
    margin: 0 0 14px;
    color: #334155;
    font-size: 0.96rem;
    line-height: 1.95;
  }
  .principal-liability-full-evidence {
    width: min(100%, 680px);
    margin: 32px auto 34px;
    padding: 0;
    overflow: visible;
    background: transparent;
    border: 0;
    border-radius: 0;
    box-shadow: none;
  }
  .principal-liability-full-evidence a {
    display: block;
    width: max-content;
    max-width: 100%;
    margin: 0 auto;
    background: #fff;
  }
  .principal-liability-full-evidence img {
    display: block;
    width: auto;
    max-width: 100%;
    height: auto;
    max-height: none;
    margin: 0 auto;
    object-fit: contain;
    object-position: center;
    border: 2px solid #dc2626;
    border-radius: 0;
    background: #fff;
    box-shadow: none;
  }
  .principal-liability-full-evidence figcaption {
    margin-top: 13px;
    padding-top: 12px;
    border-top: 1px solid #d8dee8;
    color: #5d6878;
    font-size: 0.84rem;
    line-height: 1.8;
  }
  .principal-liability-full-evidence figcaption a {
    display: inline;
    width: auto;
    margin: 0;
    color: #064f91;
    font-weight: 800;
    text-decoration: underline;
    text-underline-offset: 3px;
  }
  .principal-liability-explanation {
    max-width: 56rem;
    margin: 0;
  }
  .principal-liability-explanation ul {
    margin: 18px 0 0;
    padding: 18px 0 0 1.35rem;
    border-top: 1px solid #d8dee8;
    color: #334155;
  }
  .principal-liability-explanation li {
    margin: 0.5em 0;
    padding-left: 0.2em;
    font-size: 0.94rem;
    line-height: 1.85;
  }
  .principal-liability-caution {
    margin: 22px 0 0;
    padding: 16px 18px;
    border-left: 4px solid #64748b;
    background: #f8fafc;
    color: #475569;
    font-size: 0.88rem;
    line-height: 1.85;
  }
  @media (max-width: 720px) {
    body.guide-board-editorial #principal-liability {
      padding: 48px 0 56px;
    }
    .principal-liability-wrap {
      width: min(calc(100% - 32px), 960px);
    }
    .principal-liability-flow {
      grid-template-columns: 1fr;
      padding: 8px 0;
    }
    .principal-liability-flow-item {
      padding: 15px 0;
    }
    .principal-liability-flow-arrow {
      transform: rotate(90deg);
      line-height: 1;
    }
    .principal-liability-full-evidence {
      margin: 26px auto 30px;
    }
  }

  /* Page-specific styles for guide-board.html */
  body.guide-board-text-first .page-hero--photo {
    min-height: 0;
    padding: 58px 0 52px;
    background: linear-gradient(135deg, #12345a 0%, #1d527e 72%, #28678e 100%);
  }
  body.guide-board-text-first .page-hero--photo::before,
  body.guide-board-text-first .page-hero--photo::after {
    opacity: 0.28;
  }
  body.guide-board-text-first .page-hero-bg-img {
    display: none;
  }
  body.guide-board-text-first #principal-liability {
    padding-top: 54px;
  }
  body.guide-board-text-first #board-executive-brief {
    padding-top: 54px;
  }
  body.guide-board-text-first .gbv-head {
    margin-bottom: 18px;
  }
  body.guide-board-text-first .principal-liability-explanation {
    margin-top: 28px;
  }
  body.guide-board-text-first .principal-liability-meaning {
    margin-top: 34px;
  }
  body.guide-board-text-first .principal-liability-full-evidence {
    margin-top: 25px;
  }
  .board-visual-details {
    margin: 28px 0 34px;
    border-top: 1px solid #cbd5e1;
    border-bottom: 1px solid #cbd5e1;
    background: #fff;
  }
  .board-visual-details > summary {
    position: relative;
    padding: 17px 44px 17px 0;
    color: #17345c;
    font-size: 0.94rem;
    font-weight: 900;
    line-height: 1.65;
    cursor: pointer;
    list-style: none;
  }
  .board-visual-details > summary::-webkit-details-marker {
    display: none;
  }
  .board-visual-details > summary::after {
    content: "＋";
    position: absolute;
    top: 50%;
    right: 4px;
    transform: translateY(-50%);
    color: #9a6c00;
    font-size: 1.35rem;
    font-weight: 700;
  }
  .board-visual-details[open] > summary::after {
    content: "－";
  }
  .board-visual-details[open] > summary {
    border-bottom: 1px solid #e2e8f0;
  }
  .board-visual-details__body {
    padding: 24px 0 8px;
  }
  .board-visual-details--compact {
    max-width: 56rem;
    margin-top: 32px;
  }
  .board-visual-details--compact .board-visual-details__body {
    padding: 18px 0 4px;
  }
  body.guide-board-text-first .gbv-source {
    margin-top: 32px;
  }
  @media (max-width: 720px) {
    body.guide-board-text-first .page-hero--photo {
      padding: 44px 0 40px;
    }
    body.guide-board-text-first #principal-liability,
    body.guide-board-text-first #board-executive-brief {
      padding-top: 44px;
    }
    .board-visual-details > summary {
      font-size: 0.9rem;
      padding-right: 38px;
    }
    .board-visual-details__body {
      padding-top: 18px;
    }
  }

  /* Page-specific styles for guide-board.html */
  .rc5-section {
    background: var(--bg, #f5f7fa);
    padding: 64px 0;
  }
  .rc5-wrap {
    width: min(calc(100% - 40px), 900px);
    margin-inline: auto;
  }
  .rc5-section .section-title {
    font-family: "Noto Sans JP", sans-serif;
    font-size: clamp(1.55rem, 2.4vw, 2.05rem);
    line-height: 1.35;
    letter-spacing: 0;
  }
  .rc5-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-top: 28px;
  }
  .rc5-item {
    background: #fff;
    border: 1px solid var(--line, #e2e8f0);
    border-left: 4px solid var(--navy, #1e3a5f);
    border-radius: 12px;
    padding: 16px 18px;
    box-shadow: 0 1px 3px rgba(10, 22, 40, 0.05);
  }
  .rc5-head {
    display: flex;
    align-items: center;
    gap: 12px;
  }
  .rc5-no {
    flex-shrink: 0;
    width: 26px;
    height: 26px;
    border-radius: 50%;
    background: var(--navy, #1e3a5f);
    color: var(--gold-lt, #e8cd77);
    font-weight: 900;
    font-size: 0.82rem;
    display: flex;
    align-items: center;
    justify-content: center;
  }
  .rc5-axis {
    font-weight: 900;
    color: var(--navy, #1e3a5f);
    font-size: 1.02rem;
  }
  .rc5-q {
    margin: 10px 0 8px 38px;
    font-size: 0.95rem;
    font-weight: 700;
    line-height: 1.75;
    color: var(--text, #1e293b);
  }
  .rc5-sign {
    font-size: 0.85rem;
    color: #9a3412;
    background: #fff7ed;
    border: 1px solid #fed7aa;
    border-radius: 8px;
    padding: 7px 12px;
    margin-left: 38px;
    margin-bottom: 6px;
  }
  .rc5-doc {
    font-size: 0.83rem;
    color: #475569;
    margin-left: 38px;
  }
  .rc5-doc b {
    color: #1e3a5f;
  }
  .rc5-link {
    margin-left: 38px;
    margin-top: 6px;
    font-size: 0.82rem;
  }
  .rc5-link a {
    color: var(--navy, #1e3a5f);
    text-decoration: none;
    border-bottom: 1px dotted var(--navy, #1e3a5f);
  }
  .rc5-note {
    margin-top: 18px;
    background: #f0f9ff;
    border: 1px solid #bae6fd;
    border-radius: 10px;
    padding: 12px 16px;
    font-size: 0.86rem;
    color: #075985;
  }
  .rc5-cta {
    margin-top: 24px;
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    justify-content: center;
  }
  @media (max-width: 560px) {
    .rc5-q,
    .rc5-sign,
    .rc5-doc,
    .rc5-link {
      margin-left: 0;
    }
  }
}