@media (max-width: 980px) {
  .global-nav {
    display: none;
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    padding: 22px var(--gutter) 30px;
    background: var(--bg);
    border-bottom: 1px solid var(--line);
    grid-template-columns: 1fr 1fr;
  }
  .global-nav[data-state="open"] {
    display: grid;
  }
  .global-nav__divisions {
    border-left: 0;
    padding-left: 0;
    display: grid;
  }
  .menu-toggle {
    display: flex;
    justify-self: end;
    align-items: center;
    gap: 12px;
    border: 0;
    background: transparent;
    font-size: 0.7rem;
  }
  .menu-toggle i,
  .menu-toggle i::before {
    display: block;
    width: 22px;
    height: 1px;
    background: var(--text);
    content: "";
  }
  .menu-toggle i::before {
    transform: translateY(6px);
  }
  .service-ledger article {
    grid-template-columns: 60px 1fr;
  }
  .service-ledger article p {
    grid-column: 2;
  }
  .service-ledger article a {
    grid-column: 2;
  }
  .topic-index {
    grid-template-columns: repeat(2, 1fr);
  }
  .topic-index a {
    border-bottom: 1px solid var(--line);
  }
  .work-entry {
    grid-template-columns: 100px 1fr;
  }
  .work-entry > .media-placeholder {
    grid-column: 1/-1;
  }
  .support-topic {
    grid-template-columns: 80px 1fr;
  }
  .support-topic > div:last-child {
    grid-column: 2;
  }
  .policy-layout {
    grid-template-columns: 1fr !important;
  }
  .policy-nav {
    position: static;
  }
  .ratio-gallery > * {
    grid-column: span 6 !important;
  }
}

@media (max-width: 720px) {
  :root {
    --header: 64px;
    --gutter: 20px;
    --section: 72px;
  }
  .site-header__inner {
    gap: 12px;
  }
  .site-brand small {
    display: none;
  }
  .site-brand__mark {
    width: 34px;
    height: 34px;
  }
  .division-nav {
    padding-block: 8px;
  }
  .local-index {
    grid-template-columns: 1fr 1fr;
  }
  .local-index a {
    min-height: 66px;
    padding: 14px 10px;
  }
  .local-index a:nth-child(odd) {
    border-left: 1px solid var(--line);
  }
  .section-heading {
    grid-template-columns: 40px 1fr;
    gap: 12px;
  }
  .split,
  .split--reverse,
  .editorial-service,
  .principle-map,
  .support-decision,
  .record-program__header {
    grid-template-columns: 1fr;
  }
  .split--reverse > *:first-child {
    order: 0;
  }

  .media-placeholder__surface {
    display: none;
  }
  .editorial-service__meta,
  .principle-map__statement,
  .support-decision__question {
    position: static;
  }
  .numbered-columns {
    grid-template-columns: 1fr;
  }
  .numbered-columns article:nth-child(odd) {
    border-right: 0;
  }
  .definition-table > div {
    grid-template-columns: 1fr;
    gap: 8px;
  }
  .timeline li {
    grid-template-columns: 48px 1fr;
    gap: 12px;
  }
  .service-ledger article {
    grid-template-columns: 40px 1fr;
    gap: 16px;
  }
  .route-list a {
    grid-template-columns: 44px 1fr;
  }
  .route-list p {
    grid-column: 2;
  }
  .route-list i {
    grid-column: 2;
  }
  .news-list li {
    grid-template-columns: 100px 1fr;
  }
  .news-list a {
    grid-column: 1/-1;
  }
  .home-branches__origin {
    margin-left: 26px;
  }
  .home-branches__grid {
    grid-template-columns: 1fr;
  }
  .branch {
    min-height: 340px;
  }
  .branch:first-child {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }
  .site-footer__statement {
    display: grid;
  }
  .site-footer__links {
    grid-template-columns: 1fr;
  }

  .site-footer__bottom {
    display: grid;
  }
  .form-grid {
    grid-template-columns: 1fr;
  }
  .topic-index {
    grid-template-columns: 1fr;
  }
  .support-topic {
    grid-template-columns: 1fr;
  }
  .support-topic > div:last-child {
    grid-column: 1;
  }
  .boundary {
    grid-template-columns: 1fr;
  }
  .boundary article:first-child {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }
  .work-entry {
    grid-template-columns: 1fr;
  }
  .work-mosaic {
    grid-template-columns: 1fr;
  }
  .work-mosaic > *:first-child {
    grid-row: auto;
  }
  .ratio-gallery {
    display: grid;
    grid-template-columns: 1fr;
  }
  .ratio-gallery > * {
    grid-column: 1 !important;
  }
  .emergency-strip {
    grid-template-columns: 1fr;
    gap: 8px;
  }
  .data-table {
    min-width: 620px;
  }
}

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

@media (max-width: 980px) {
  .hero-cover {
    min-height: clamp(560px, 72svh, 760px);
  }

  .hero-cover--home {
    min-height: clamp(620px, 84svh, 860px);
  }

  .hero-cover__inner {
    grid-template-columns: 48px minmax(0, 1fr);
    padding-top: clamp(92px, 12vh, 138px);
  }

  .hero-cover h1 {
    max-width: none;
    font-size: clamp(2.7rem, 5.4vw, 4.4rem);
  }

  .hero-cover--home h1 {
    max-width: none;
    font-size: clamp(2.9rem, 6vw, 5rem);
  }
}

@media (max-width: 720px) {
  .hero-cover {
    min-height: clamp(590px, 82svh, 760px);
    align-items: end;
  }

  .hero-cover--home {
    min-height: clamp(660px, 88svh, 840px);
  }

  .hero-cover__shade,
  .theme-creative .hero-cover__shade,
  .theme-support .hero-cover__shade,
  .theme-policy .hero-cover__shade {
    background: linear-gradient(
      180deg,
      rgba(11, 15, 13, 0.24) 0%,
      rgba(11, 15, 13, 0.42) 35%,
      rgba(11, 15, 13, 0.92) 74%,
      rgba(11, 15, 13, 0.98) 100%
    );
  }

  .hero-cover__picture img,
  .hero-cover__video {
    object-position: center top;
  }

  .hero-cover__inner {
    padding: 92px var(--gutter) 44px;
    grid-template-columns: 1fr;
    gap: 22px;
  }

  .hero-cover__index {
    padding-top: 0;
  }

  .hero-cover__eyebrow {
    margin-bottom: 14px;
    font-size: 0.65rem;
    letter-spacing: 0.15em;
  }

  .hero-cover h1 {
    max-width: 100%;
    font-size: clamp(2.35rem, 10.8vw, 3.9rem);
    word-break: auto-phrase;
    line-height: 1.2;
  }

  .hero-cover--home h1 {
    max-width: 100%;
  }

  .hero-cover__title-line {
    white-space: normal;
  }

  .hero-cover__lead-label {
    margin-top: 28px;
  }

  .hero-cover__lead {
    max-width: 36ch;
    margin-top: 22px;
    font-size: 0.96rem;
    line-height: 1.82;
  }
}

@media (max-width: 720px) {
  .branch .text-link {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 6px 14px;
    align-items: center;
  }

  .branch .text-link span {
    grid-column: 1;
    grid-row: 1;
    min-width: 0;
    word-break: normal;
    overflow-wrap: anywhere;
  }

  .branch .text-link small {
    grid-column: 1;
    grid-row: 2;
    min-width: 0;
  }

  .branch .text-link i {
    grid-column: 2;
    grid-row: 1 / 3;
    align-self: center;
  }
}
/* ========================================
   PRINCIPLE MAP：RESPONSIVE
======================================== */

@media (max-width: 980px) {
  /*
    01・03・02・04をすべて同じ1カラムへ統一
  */
  .principle-map__steps > .principle-map__step:nth-child(odd),
  .principle-map__steps > .principle-map__step:nth-child(even) {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: 42px;

    min-height: auto;
    padding: 88px 0;
  }

  /*
    共通タイトルを必ず上段へ
  */
  .principle-map__steps
    > .principle-map__step:nth-child(odd)
    .principle-map__statement,
  .principle-map__steps
    > .principle-map__step:nth-child(even)
    .principle-map__statement {
    grid-column: 1;
    grid-row: 1;

    position: static;
    width: 100%;
    max-width: 640px;
  }

  /*
    見出し・本文・画像を必ず下段へ
  */
  .principle-map__steps
    > .principle-map__step:nth-child(odd)
    .principle-map__detail,
  .principle-map__steps
    > .principle-map__step:nth-child(even)
    .principle-map__detail {
    grid-column: 1;
    grid-row: 2;

    width: 100%;
    min-width: 0;
  }
}

@media (max-width: 720px) {
  .principle-map__steps > .principle-map__step:nth-child(odd),
  .principle-map__steps > .principle-map__step:nth-child(even) {
    gap: 30px;
    padding: 68px 0;
  }

  .principle-map__statement {
    max-width: 100%;
    font-size: clamp(2rem, 9vw, 3rem);
    line-height: 1.45;
    white-space: normal;
  }

  .principle-map__content h2 {
    font-size: clamp(1.55rem, 7vw, 2.1rem);
    word-break: keep-all;
  }

  .principle-map__content > p {
    max-width: none;
  }

  .principle-map__media {
    width: 100%;
    margin-top: 30px;
  }
}