.home-root {
    position: relative;
    background: #ffffff;
    overflow: visible;
  }
  .home-root * {
    min-width: 0;
  }
  .home-root p,
  .home-root h2,
  .home-root h3 {
    overflow-wrap: anywhere;
    line-break: anywhere;
  }
  .home-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 32px;
  }
  .home-section {
    padding: 80px 0 0;
  }
  .home-section-head {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 24px;
    margin-bottom: 32px;
    border-bottom: 2px solid var(--navy-900);
    padding-bottom: 12px;
  }
  .home-title {
    margin: 0;
    color: var(--navy-900);
    font-size: 28px;
    line-height: 1.25;
    font-weight: 800;
    letter-spacing: -0.02em;
  }
  .home-subtitle {
    margin: 6px 0 0;
    color: var(--ink-500);
    font-size: 14px;
    line-height: 1.6;
  }
  .home-view-link {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    color: var(--navy-700);
    font-size: 14px;
    font-weight: 700;
    white-space: nowrap;
    transition: transform 0.2s ease;
  }
  .home-view-link:hover {
    transform: translateX(4px);
  }
  .home-arrow {
    color: var(--navy-700);
    align-self: center;
    justify-self: end;
    transition: transform 0.2s ease;
  }
  
  /* 1. Research Areas - editorial feature rows */
  .home-research-features {
    display: flex;
    flex-direction: column;
    margin-top: 32px;
  }
  .home-research-feature {
    display: flex;
    flex-direction: column;
    gap: 24px;
    padding: 40px 0;
    border-bottom: 1px solid var(--line);
  }
  .home-research-feature:first-child {
    padding-top: 0;
  }
  .home-research-visual {
    display: block;
  }
  .home-research-visual img {
    width: 100%;
    display: block;
    object-fit: contain;
    background: var(--navy-50);
  }
  .home-research-meta {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 8px;
  }
  .home-research-number {
    font-size: 13px;
    font-weight: 800;
    letter-spacing: 0.04em;
  }
  .home-research-eyebrow {
    font-size: 12px;
    font-weight: 800;
    letter-spacing: 0.1em;
    text-transform: uppercase;
  }
  .home-research-feature-title {
    margin: 0 0 8px;
    color: var(--navy-900);
    font-size: 22px;
    font-weight: 800;
  }
  .home-research-lead {
    margin: 0 0 8px;
    color: var(--ink-500);
    font-size: 14px;
    font-weight: 700;
    line-height: 1.6;
  }
  .home-research-description {
    margin: 0 0 12px;
    color: var(--ink-700);
    font-size: 14px;
    line-height: 1.8;
  }
  .home-research-keywords {
    margin: 0 0 16px;
    color: var(--ink-500);
    font-size: 12.5px;
  }
  .home-research-link {
    display: inline-flex;
    align-items: center;
    font-size: 14px;
    font-weight: 800;
    text-decoration: none;
  }

  @media (min-width: 901px) {
    .home-research-feature {
      flex-direction: row;
      align-items: center;
      gap: 56px;
    }
    .home-research-visual {
      flex: 0 0 55%;
    }
    .home-research-copy {
      flex: 1 1 45%;
    }
    .home-research-feature.is-reverse {
      flex-direction: row-reverse;
    }
  }

  /* 1. Research Highlights - Unified Card */
  .research-unified-card {
    background: #ffffff;
    border: 1px solid rgba(15, 23, 42, 0.06);
    border-radius: 24px;
    box-shadow: 0 10px 30px rgba(11, 37, 69, 0.03);
    margin-top: 32px;
    margin-bottom: 40px;
    overflow: hidden;
  }

  .research-split-container {
    /* wrapper kept for semantics */
  }
  
  .research-map-side {
    position: relative;
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: flex-start;
    padding: 24px;
    min-height: 600px;
  }

  .research-map-wrapper {
    position: relative;
    width: 58%;
    aspect-ratio: 1.1 / 1;
    flex-shrink: 0;
  }

  /* 3円をつなぐ“相互作用の輪”。3ドメイン色のconicグラデーションをドーナツ状にマスクし、
     円の背面(z-index:1)に置くことで、円と円の隙間に色付きの弧として現れて3領域を結ぶ。 */
  .map-ring {
    position: absolute;
    left: 50%;
    top: 55.6%; /* 3円の重心。center-core と同心にする */
    width: 64%;
    aspect-ratio: 1;
    transform: translate(-50%, -50%);
    border-radius: 50%;
    background: conic-gradient(from 210deg,
      var(--domain-robot),
      var(--domain-al),
      var(--domain-music),
      var(--domain-robot));
    -webkit-mask: radial-gradient(closest-side, transparent calc(100% - 10px), #000 calc(100% - 10px));
    mask: radial-gradient(closest-side, transparent calc(100% - 10px), #000 calc(100% - 10px));
    opacity: 0.92;
    z-index: 1;
    pointer-events: none;
  }

  /* 個々の円（領域） */
  .map-circle {
    position: absolute;
    border-radius: 50%;
    overflow: hidden;
    border: 4px solid #ffffff;
    box-shadow: 0 10px 30px rgba(11, 37, 69, 0.08);
    cursor: pointer;
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), 
                box-shadow 0.4s cubic-bezier(0.16, 1, 0.3, 1), 
                border-color 0.4s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    z-index: 2;
  }
  
  .circle-bg-image {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
    /* AI生成のストック画像の“テカり/ネオン感”を抑えてブランドに馴染ませる暫定処置
       （根本解決は実写真/実図への差し替え） */
    filter: saturate(0.5) contrast(0.96);
    transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
    z-index: 1;
  }

  .circle-overlay {
    position: absolute;
    inset: 0;
    background: rgba(11, 37, 69, 0.52);
    transition: background 0.4s ease;
    z-index: 2;
  }
  
  .circle-text-content {
    position: relative;
    z-index: 3;
    color: #ffffff;
    padding: 16px;
    pointer-events: none;
  }
  
  .circle-eyebrow {
    display: block;
    font-size: clamp(9px, 1.1vw, 13px);
    font-weight: 800;
    letter-spacing: 0.12em;
    margin-bottom: 2px;
    opacity: 0.9;
  }
  
  .circle-title {
    margin: 0;
    font-size: clamp(13px, 1.8vw, 22px);
    font-weight: 800;
    letter-spacing: 0.02em;
  }
  
  /* ホバーおよびアクティブ状態 */
  .map-circle:hover,
  .map-circle.is-active {
    transform: scale(1.06);
    z-index: 3;
  }
  
  .map-circle:hover .circle-bg-image,
  .map-circle.is-active .circle-bg-image {
    transform: scale(1.08);
  }
  
  .map-circle:hover .circle-overlay,
  .map-circle.is-active .circle-overlay {
    background: rgba(11, 37, 69, 0.36);
  }
  
  /* 各円の個別配置とアクティブ時カラー。
     旧サイトの図のように3円を中心へ寄せて重ね、中央のINTERACTIONを介して
     相互に関わり合う構造を表現する（円は不透明写真のため“花びら状”に重ねる）。 */
  .map-circle-robotics {
    left: 28%;
    top: 3%;
    width: 44%;
    aspect-ratio: 1;
  }
  .map-circle-robotics:hover,
  .map-circle-robotics.is-active {
    border-color: var(--domain-robot);
    box-shadow: 0 15px 45px color-mix(in srgb, var(--domain-robot) 35%, transparent);
  }

  .map-circle-alife {
    left: 3%;
    bottom: 6%;
    width: 44%;
    aspect-ratio: 1;
  }
  .map-circle-alife:hover,
  .map-circle-alife.is-active {
    border-color: var(--domain-al);
    box-shadow: 0 15px 45px color-mix(in srgb, var(--domain-al) 35%, transparent);
  }

  .map-circle-biomusic {
    right: 3%;
    bottom: 6%;
    width: 44%;
    aspect-ratio: 1;
  }
  .map-circle-biomusic:hover,
  .map-circle-biomusic.is-active {
    border-color: var(--domain-music);
    box-shadow: 0 15px 45px color-mix(in srgb, var(--domain-music) 35%, transparent);
  }

  /* 中央コア (INTERACTION)：3領域が重なる交点。3ドメイン色のconicリングで
     「3つの領域がここで交わる」ことを示す（色は単一ソースの変数を参照）。 */
  .center-core {
    position: absolute;
    left: 50%;
    top: 55.6%; /* 3円の重心（リングと同心） */
    width: 30%;
    aspect-ratio: 1;
    border-radius: 50%;
    transform: translate(-50%, -50%);
    background: #0b2545;
    border: 3px solid #ffffff;
    box-shadow: 0 8px 28px rgba(0, 0, 0, 0.35),
                inset 0 0 16px rgba(255, 255, 255, 0.05);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    z-index: 4;
    pointer-events: none;
  }

  /* 3ドメイン色のconicグラデーションで作る“交わりのリング” */
  .center-core::before {
    content: "";
    position: absolute;
    inset: -7px;
    border-radius: 50%;
    background: conic-gradient(from 210deg,
      var(--domain-robot),
      var(--domain-al),
      var(--domain-music),
      var(--domain-robot));
    z-index: -1;
    opacity: 0.95;
  }
  
  .center-core-text-en {
    font-size: clamp(10px, 1.1vw, 14px);
    font-weight: 800;
    letter-spacing: 0.12em;
    color: #ffffff;
  }
  
  .center-core-text-ja {
    font-size: clamp(8px, 0.85vw, 11px);
    font-weight: 700;
    color: rgba(255, 255, 255, 0.65);
    margin-top: 3px;
  }
  
  /* 詳細情報パネル（図の右空白にオーバーレイ） */
  .research-info-side {
    position: absolute;
    top: 16px;
    right: 24px;
    bottom: 16px;
    width: 44%;
    display: flex;
    flex-direction: column;
    justify-content: center;
  }
  
  .info-panel-card {
    padding: 16px 32px 16px 0;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    min-height: 440px;
    justify-content: center;
  }
  
  .info-panel-content {
    display: flex;
    flex-direction: column;
    /* height:100% を外す — フレックスの圧縮で説明文が潰れてCTAが押し出される不具合を防ぐ。
       内容は自然高さで並び、親カードの justify-content:center で縦中央に配置される。 */
    animation: panelFadeIn 0.3s cubic-bezier(0.16, 1, 0.3, 1) forwards;
  }
  
  @keyframes panelFadeIn {
    from {
      opacity: 0;
      transform: translateY(10px);
    }
    to {
      opacity: 1;
      transform: translateY(0);
    }
  }
  
  .info-panel-eyebrow {
    font-size: 11px;
    font-weight: 800;
    letter-spacing: 0.1em;
    margin-bottom: 8px;
    text-transform: uppercase;
  }
  
  .info-panel-title {
    font-size: 26px;
    font-weight: 800;
    color: var(--navy-900);
    margin: 0 0 8px 0;
  }

  .info-panel-lead {
    font-size: 14px;
    font-weight: 700;
    color: var(--ink-500);
    margin: 0 0 8px 0;
    line-height: 1.5;
  }

  .info-panel-desc {
    font-size: 13.5px;
    line-height: 1.55;
    color: var(--ink-700);
    margin: 0 0 10px 0;
    /* 中間幅での折り返しでも高さが暴れないよう上限を固定（CTAのはみ出し防止） */
    display: -webkit-box;
    -webkit-line-clamp: 4;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }

  .info-panel-tags {
    display: flex;
    flex-wrap: wrap;
    justify-content: flex-start;
    gap: 8px;
    margin: 0 0 8px 0;
    padding: 0;
    list-style: none;
  }

  /* キーワード：領域テーマ色で淡く色付けした静的バッジ（左寄せ・非リンク） */
  .info-panel-tag {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 5px 12px;
    background: color-mix(in srgb, var(--tag-accent, var(--navy-700)) 9%, #fff);
    color: color-mix(in srgb, var(--tag-accent, var(--navy-700)) 74%, #1a1a1a);
    font-size: 12px;
    font-weight: 700;
    line-height: 1;
    border-radius: 999px;
  }

  /* 先頭のドットで「トピック」であることをさりげなく示す */
  .info-panel-tag::before {
    content: "";
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background: var(--tag-accent, var(--navy-700));
    flex-shrink: 0;
  }
  
  /* 研究事例ブロック（1件ずつめくるカルーセル）→右寄せ */
  .info-panel-gallery-block {
    margin-left: auto;
    width: 80%;
    margin-top: 4px;
  }

  .gallery-head {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    margin-bottom: 6px;
  }

  .info-panel-gallery-label {
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 0.08em;
    color: var(--ink-400);
    text-transform: uppercase;
    display: block;
  }

  .gallery-counter {
    font-size: 10px;
    font-weight: 700;
    color: var(--ink-400);
    letter-spacing: 0.04em;
    font-variant-numeric: tabular-nums;
  }

  /* カルーセル本体：スライド1枚に前後ボタンを重ねるモダンな構成 */
  .gallery-carousel {
    position: relative;
  }

  /* 画像に重ねる円形ナビ（半透明＋ブラー、ホバーで強調） */
  .gallery-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
    border: none;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.88);
    -webkit-backdrop-filter: blur(4px);
    backdrop-filter: blur(4px);
    color: var(--navy-800);
    box-shadow: 0 2px 10px rgba(11, 37, 69, 0.20);
    cursor: pointer;
    opacity: 0;
    transition: opacity 0.2s ease, background 0.15s ease, transform 0.15s ease, box-shadow 0.15s ease;
    z-index: 2;
  }

  .gallery-carousel:hover .gallery-nav,
  .gallery-nav:focus-visible {
    opacity: 1;
  }

  .gallery-nav:hover {
    background: #fff;
    transform: translateY(-50%) scale(1.1);
    box-shadow: 0 4px 14px rgba(11, 37, 69, 0.28);
  }

  .gallery-nav-prev {
    left: 10px;
  }

  .gallery-nav-next {
    right: 10px;
  }

  .gallery-nav-prev .bi-icon {
    transform: rotate(180deg);
  }

  .gallery-slide {
    display: block;
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid rgba(15, 23, 42, 0.08);
    background: rgba(15, 23, 42, 0.04);
    text-decoration: none;
    transition: box-shadow 0.2s ease, border-color 0.2s ease;
  }

  .gallery-slide:hover {
    border-color: rgba(15, 23, 42, 0.18);
    box-shadow: 0 8px 22px rgba(11, 37, 69, 0.10);
  }

  .gallery-slide-imgwrap {
    display: block;
    width: 100%;
    aspect-ratio: 16 / 9;
    overflow: hidden;
  }

  .gallery-slide-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
  }

  .gallery-slide:hover .gallery-slide-img {
    transform: scale(1.04);
  }

  /* キャプション（1件を大きく見せられるので2行まで確保） */
  .gallery-caption-line {
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    margin-top: 7px;
    color: var(--ink-700);
    font-size: 12px;
    font-weight: 600;
    line-height: 1.45;
    text-decoration: none;
  }

  .gallery-caption-line:hover {
    color: var(--navy-700);
  }

  /* ページ送りドット */
  .gallery-dots {
    display: flex;
    gap: 6px;
    margin-top: 8px;
  }

  .gallery-dot {
    width: 7px;
    height: 7px;
    padding: 0;
    border: none;
    border-radius: 50%;
    background: rgba(15, 23, 42, 0.18);
    cursor: pointer;
    transition: transform 0.15s ease, background 0.15s ease;
  }

  .gallery-dot:hover {
    background: rgba(15, 23, 42, 0.34);
  }

  .gallery-dot.active {
    transform: scale(1.25);
  }

  /* CTA バナーボタン（全幅・目立つデザイン） */
  .info-panel-cta-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    width: 80%;
    margin-left: auto;
    padding: 16px 20px;
    border-radius: 16px;
    color: #fff;
    text-decoration: none;
    margin-top: 10px;
    font-weight: 700;
    font-size: 14px;
    transition: filter 0.25s ease, transform 0.25s ease;
    position: relative;
    overflow: hidden;
    box-shadow: 0 6px 24px rgba(0,0,0,0.18);
    min-width: 0;
  }

  /* シャインエフェクト */
  .info-panel-cta-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -75%;
    width: 50%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.22), transparent);
    transform: skewX(-20deg);
    transition: left 0.55s ease;
  }

  .info-panel-cta-btn:hover::before {
    left: 130%;
  }

  .info-panel-cta-btn:hover {
    filter: brightness(1.08);
    transform: translateY(-2px);
  }

  .cta-btn-left {
    display: flex;
    flex-direction: column;
    gap: 2px;
  }

  .cta-btn-sub {
    font-size: clamp(8px, 0.75vw, 10px);
    font-weight: 600;
    opacity: 0.75;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    white-space: nowrap;
  }

  .cta-btn-label {
    font-size: clamp(11px, 1.1vw, 15px);
    font-weight: 800;
    letter-spacing: 0.02em;
    white-space: nowrap;
  }

  .cta-btn-arrow {
    font-size: 22px;
    transition: transform 0.25s ease;
    flex-shrink: 0;
    margin-left: 12px;
  }

  .info-panel-cta-btn:hover .cta-btn-arrow {
    transform: translateX(5px);
  }

  /* 領域カラーの背景エフェクト */
  .research-map-side {
    position: relative;
    width: 100%;
    display: flex;
    align-items: flex-start;
    justify-content: flex-start;
    padding: 24px;
    transition: background 0.5s ease;
  }

  .research-map-side.glow-robotics {
    background: radial-gradient(ellipse at 78% 20%, color-mix(in srgb, var(--domain-robot) 9%, transparent) 0%, transparent 55%);
  }

  .research-map-side.glow-alife {
    background: radial-gradient(ellipse at 78% 20%, color-mix(in srgb, var(--domain-al) 9%, transparent) 0%, transparent 55%);
  }

  .research-map-side.glow-biomusic {
    background: radial-gradient(ellipse at 78% 20%, color-mix(in srgb, var(--domain-music) 9%, transparent) 0%, transparent 55%);
  }
  
  /* プレースホルダー（未選択時） */
  .info-panel-placeholder {
    text-align: center;
    padding: 24px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
  }
  
  .placeholder-icon {
    font-size: 40px;
    margin-bottom: 16px;
    animation: iconPulse 2s infinite ease-in-out;
  }
  
  @keyframes iconPulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.08); }
  }
  
  .placeholder-title {
    font-size: 18px;
    font-weight: 800;
    color: var(--navy-900);
    margin: 0 0 10px 0;
  }
  
  .placeholder-text {
    font-size: 13px;
    line-height: 1.6;
    color: var(--ink-500);
    max-width: 280px;
    margin: 0 0 16px 0;
  }
  
  .placeholder-hint {
    font-size: 11px;
    color: var(--ink-400);
    font-weight: 600;
  }
  
  /* モバイルアコーディオン */
  .research-mobile-accordion {
    display: none;
    flex-direction: column;
    gap: 16px;
    margin-top: 24px;
    margin-bottom: 32px;
  }
  
  .mobile-area-card {
    background: #ffffff;
    border: 1px solid rgba(15, 23, 42, 0.06);
    border-radius: 16px;
    overflow: hidden;
    transition: box-shadow 0.3s ease;
    box-shadow: 0 4px 12px rgba(11, 37, 69, 0.02);
  }
  
  .mobile-area-card.is-expanded {
    box-shadow: 0 10px 25px rgba(11, 37, 69, 0.06);
  }
  
  .mobile-area-card-header {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 18px 20px;
    background: none;
    border: none;
    text-align: left;
    cursor: pointer;
    outline: none;
  }
  
  .mobile-eyebrow {
    font-size: 9px;
    font-weight: 800;
    letter-spacing: 0.08em;
    display: block;
    margin-bottom: 2px;
  }
  
  .mobile-title {
    font-size: 18px;
    font-weight: 800;
    color: var(--navy-900);
    margin: 0;
  }
  
  .mobile-arrow-icon {
    color: var(--ink-400);
    display: flex;
    align-items: center;
    transition: transform 0.3s ease;
  }
  
  .mobile-arrow-icon.is-active {
    transform: rotate(90deg);
  }
  
  .mobile-area-card-body {
    padding: 0 20px 20px;
    transition: max-height 0.4s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.4s ease;
    overflow: hidden;
  }
  
  .mobile-lead {
    font-size: 13px;
    font-weight: 700;
    color: var(--ink-500);
    margin: 0 0 10px 0;
  }
  
  .mobile-desc {
    font-size: 12.5px;
    line-height: 1.6;
    color: var(--ink-700);
    margin: 0 0 16px 0;
  }
  
  .mobile-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin: 0 0 18px 0;
    padding: 0;
    list-style: none;
  }
  
  .mobile-tags li {
    padding: 4px 8px;
    background: rgba(15, 23, 42, 0.04);
    color: #475569;
    font-size: 11px;
    font-weight: 600;
    border-radius: 4px;
  }
  
  .mobile-gallery {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px;
    margin-bottom: 20px;
  }
  
  .mobile-gallery-item {
    display: flex;
    flex-direction: column;
    border-radius: 8px;
    overflow: hidden;
    background: rgba(15, 23, 42, 0.02);
    border: 1px solid rgba(15, 23, 42, 0.04);
    text-decoration: none;
  }
  
  .mobile-gallery-item img {
    width: 100%;
    aspect-ratio: 16 / 10;
    object-fit: cover;
  }
  
  .mobile-gallery-item span {
    font-size: 9px;
    font-weight: 700;
    color: var(--ink-700);
    padding: 6px 8px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }
  
  .mobile-more-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    color: #ffffff;
    font-size: 12.5px;
    font-weight: 700;
    padding: 10px;
    border-radius: 8px;
    text-decoration: none;
    text-align: center;
  }
  
  /* レスポンシブ */
  /* 901px〜1100px: 横幅が狭いデスクトップ表示のとき、詳細パネルの見切れを防ぐために要素を小さくする */
  @media (max-width: 1100px) and (min-width: 901px) {
    .research-map-side {
      min-height: 500px;
    }
    .info-panel-card {
      padding: 16px 24px 16px 0;
      min-height: 440px;
    }
    .info-panel-title {
      font-size: clamp(20px, 2.2vw, 24px);
      margin-bottom: 6px;
    }
    .info-panel-lead {
      font-size: clamp(12px, 1.3vw, 13.5px);
      margin-bottom: 8px;
      line-height: 1.4;
    }
    .info-panel-desc {
      font-size: clamp(11px, 1.2vw, 12.5px);
      margin-bottom: 8px;
      line-height: 1.45;
    }
    .info-panel-tags {
      gap: 6px;
      margin-bottom: 8px;
    }
    .info-panel-tags li {
      font-size: 11px;
      padding: 3px 8px;
    }
    .info-panel-gallery-block {
      margin-top: 6px;
    }
    .info-panel-gallery-label {
      font-size: 9px;
      margin-bottom: 4px;
    }
    .info-panel-gallery {
      gap: 4px;
    }
    .gallery-thumb-caption {
      font-size: 8px;
      padding: 6px 4px 3px;
    }
    .info-panel-cta-btn {
      margin-top: 10px;
      padding: 12px 16px;
      gap: 8px;
    }
    .cta-btn-label {
      font-size: clamp(11px, 1.1vw, 13.5px);
    }
    .cta-btn-arrow {
      font-size: 18px;
      margin-left: 6px;
    }
  }

  /* 900px以下: デスクトップマップを非表示、モバイルアコーディオンを表示 */
  @media (max-width: 900px) {
    .research-unified-card {
      display: none;
    }
    .research-mobile-accordion {
      display: flex;
    }
  }

  .area-card__tags li {
    border-radius: 999px;
    background: rgba(15, 23, 42, 0.05);
    color: #475569;
    font-size: 12px;
    font-weight: 600;
    line-height: 1;
    transition: background 260ms ease, color 260ms ease;
  }

  .area-card.is-active .area-card__tags li {
    background: color-mix(in srgb, var(--domain-robot) 8%, transparent); /* fallback */
    color: var(--accent);
  }

  .area-card--robotics.is-active .area-card__tags li { background: color-mix(in srgb, var(--domain-robot) 8%, transparent); }
  .area-card--alife.is-active .area-card__tags li { background: color-mix(in srgb, var(--domain-al) 8%, transparent); }
  .area-card--bio-music.is-active .area-card__tags li { background: color-mix(in srgb, var(--domain-music) 8%, transparent); }

  /* 写真ギャラリー */
  .area-card__gallery {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 8px;
    margin-top: 18px;
  }

  .area-card__thumb-link {
    display: block;
    text-decoration: none;
    outline: none;
  }

  .area-card__thumb {
    margin: 0;
    aspect-ratio: 4 / 3;
    overflow: hidden;
    border-radius: 12px;
    background: rgba(15, 23, 42, 0.06);
    opacity: 0.72;
    transform: translateY(4px);
    transition: opacity 260ms ease,
                transform 360ms cubic-bezier(.2, .8, .2, 1),
                filter 260ms ease;
    transition-delay: var(--delay);
  }

  .area-card__thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: saturate(0.82) contrast(1.04);
    transition: transform 420ms cubic-bezier(.2, .8, .2, 1),
                filter 260ms ease;
  }

  .area-card.is-active .area-card__thumb {
    opacity: 1;
    transform: translateY(0);
  }

  .area-card.is-active .area-card__thumb img {
    filter: saturate(1) contrast(1.06);
  }

  .area-card__thumb:hover img {
    transform: scale(1.08);
  }



  .home-card-body-mobile {
    display: none;
  }

  .home-special-card {
    margin-top: 40px;
    padding: 24px 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 32px;
    background: transparent;
    border-top: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
    text-decoration: none;
  }
  .home-special-eyebrow {
    margin: 0 0 4px;
    color: var(--navy-600);
    font-size: 11px;
    font-weight: 800;
    letter-spacing: 0.08em;
  }
  .home-special-title {
    margin: 0;
    color: var(--navy-900);
    font-size: 18px;
    font-weight: 800;
  }
  .home-special-text {
    margin: 6px 0 0;
    color: var(--ink-700);
    font-size: 13px;
    line-height: 1.75;
  }

  /* 2. Latest Moves - Borderless Editorial Spread */
  .home-two-col {
    display: grid;
    grid-template-columns: minmax(0, 1.25fr) minmax(320px, 0.75fr);
    gap: 48px;
    align-items: stretch;
  }
  .home-panel {
    background: transparent;
    padding: 0;
    display: flex;
    flex-direction: column;
    height: 100%;
  }
  .home-activity-list {
    display: flex;
    flex-direction: column;
    gap: 24px;
    flex-grow: 1;
  }
  .home-activity-item {
    display: flex;
    flex-direction: column;
    gap: 16px;
    align-items: stretch;
    text-decoration: none;
  }
  .home-activity-img {
    width: 100%;
    aspect-ratio: 16 / 10;
    max-height: 200px;
    object-fit: cover;
    border-radius: 8px;
    background: var(--navy-50);
    transition: transform 0.4s ease;
  }
  .home-activity-item:hover .home-activity-img {
    transform: scale(1.02);
  }
  .home-activity-body {
    display: flex;
    flex-direction: column;
    height: 100%;
  }
  .home-activity-meta {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 8px;
  }
  .home-date {
    color: var(--navy-600);
    font-size: 12px;
    font-weight: 800;
    letter-spacing: 0.02em;
  }
  .home-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 22px;
    padding: 2px 10px;
    border-radius: 999px;
    background: var(--navy-100);
    color: var(--navy-700);
    font-size: 10.5px;
    font-weight: 800;
    white-space: nowrap;
  }
  .home-activity-title {
    margin: 0 0 8px;
    color: var(--navy-900);
    font-size: 17px;
    line-height: 1.45;
    font-weight: 800;
  }
  .home-activity-text {
    margin: 0 0 12px;
    color: var(--ink-700);
    font-size: 13px;
    line-height: 1.7;
    flex-grow: 1;
  }
  .home-activity-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    font-weight: 800;
    color: var(--navy-700);
    margin-top: auto;
  }
  .home-activity-item:hover .home-activity-link {
    color: var(--cyan-400);
  }
  
  /* News list - clean news-feed style（区切り線＋ホバー時の左アクセント） */
  .home-news-list {
    display: flex;
    flex-direction: column;
    flex-grow: 1;
  }
  .home-news-item {
    display: flex;
    flex-direction: column;
    gap: 5px;
    padding: 12px 10px 12px 12px;
    border-bottom: 1px solid var(--line);
    border-left: 3px solid transparent;
    text-decoration: none;
    transition: background-color 0.2s ease, border-left-color 0.2s ease;
  }
  .home-news-item:first-child {
    padding-top: 4px;
  }
  .home-news-item:last-child {
    border-bottom: none;
  }
  /* ホバー時の変化は、活動日記にリンクされている（＝aタグの）Newsのみに適用する。
     リンクのないNews（divタグ）にまでホバー変化を付けると、クリックできると
     誤解させてしまうため。 */
  a.home-news-item:hover {
    background: var(--navy-50);
    border-left-color: var(--navy-600);
  }
  .home-news-meta {
    display: flex;
    align-items: center;
    gap: 8px;
  }
  .home-news-text {
    margin: 0;
    color: var(--ink-900);
    font-size: 13.5px;
    line-height: 1.6;
    font-weight: 500;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }
  .home-news-pager {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-top: 14px;
    padding-top: 14px;
    border-top: 1px solid var(--line);
  }
  .home-news-pager-btn {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 6px 12px;
    border: 1px solid var(--line);
    border-radius: 4px;
    background: #fff;
    color: var(--navy-900);
    font-size: 12.5px;
    font-weight: 700;
    transition: background-color 0.15s ease, border-color 0.15s ease;
  }
  .home-news-pager-btn:hover:not(:disabled) {
    background: var(--navy-50);
    border-color: var(--navy-400);
  }
  .home-news-pager-btn:disabled {
    color: var(--ink-300);
    cursor: default;
  }
  .home-news-pager-status {
    font-size: 12px;
    color: var(--ink-500);
    font-weight: 600;
  }



  /* 4. Life in KATO Lab - Frameless Gallery */
  .home-life-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 20px;
  }
  .home-life-card {
    overflow: hidden;
    background: transparent;
    border: none;
    box-shadow: none;
    text-decoration: none;
    display: flex;
    flex-direction: column;
  }
  .home-life-img {
    width: 100%;
    aspect-ratio: 4 / 3;
    object-fit: cover;
    background: var(--navy-50);
    border-radius: 12px;
    transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
  }
  .home-life-card:hover .home-life-img {
    transform: scale(1.04);
  }
  .home-life-body {
    padding: 16px 0 0;
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
  }
  .home-life-title {
    margin: 0 0 8px;
    color: var(--navy-900);
    font-size: 15.5px;
    font-weight: 850;
    line-height: 1.45;
    letter-spacing: 0.02em;
    transition: color 0.2s ease;
  }
  .home-life-card:hover .home-life-title {
    color: var(--navy-600);
  }
  .home-life-text {
    margin: 0;
    color: var(--ink-500);
    font-size: 12.5px;
    line-height: 1.8;
  }

  /* 5. Recruitment & Seminar - Split screen borderless layout */
  .home-recruit-grid {
    display: grid;
    /* 左の配属案内テキストは可読幅(520px)に収まるため、列も同幅にして
       右のゼミ開催日カードとの間に無駄な余白ができないようにする */
    grid-template-columns: minmax(0, 560px) auto;
    justify-content: start;
    gap: 60px;
    align-items: start;
    border-top: 2px solid var(--navy-900);
    padding-top: 48px;
  }
  .home-recruit-card,
  .home-seminar-card {
    background: transparent;
    padding: 0;
    min-height: auto;
    overflow: visible;
    position: relative;
    border: none;
  }
  .home-recruit-title {
    position: relative;
    z-index: 1;
    margin: 0 0 16px;
    color: var(--navy-900);
    font-size: 24px;
    font-weight: 800;
  }
  .home-recruit-text {
    position: relative;
    z-index: 1;
    margin: 0 0 32px;
    max-width: 520px;
    color: var(--ink-700);
    font-size: 14.5px;
    line-height: 1.95;
  }
  .home-button-row {
    position: relative;
    z-index: 1;
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
  }
  .home-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    min-height: 46px;
    padding: 0 24px;
    border-radius: 8px;
    border: 1px solid var(--navy-700);
    color: var(--navy-700);
    background: #fff;
    font-size: 13.5px;
    font-weight: 800;
    text-decoration: none;
    transition: transform .2s ease, background .2s ease, color .2s ease;
  }
  .home-button:hover {
    transform: translateY(-2px);
    background: var(--navy-700);
    color: #fff;
  }
  .home-button-primary {
    background: var(--navy-900);
    color: #fff;
    border-color: var(--navy-900);
  }
  .home-button-primary:hover {
    background: #153f75;
    color: #fff;
  }
  .home-seminar-table {
    position: relative;
    z-index: 1;
    margin-top: 18px;
    overflow: hidden;
    border: 1px solid var(--line);
    border-radius: 12px;
    background: #fff;
    /* 内容幅に収める（親カードいっぱいに広げない） */
    width: fit-content;
    max-width: 100%;
  }
  .home-seminar-row {
    display: grid;
    /* 曜日・時刻・班名を内容幅で詰めて配置（余白過剰を解消） */
    grid-template-columns: auto auto auto;
    gap: 24px;
    align-items: center;
    padding: 14px 20px;
    border-bottom: 1px solid var(--line);
    font-size: 13.5px;
  }
  .home-seminar-row:last-child { border-bottom: none; }
  .home-seminar-day {
    color: var(--navy-900);
    font-weight: 800;
  }
  .home-seminar-time {
    color: var(--navy-700);
    font-weight: 900;
  }
  .home-empty {
    padding: 22px 0;
    color: var(--ink-500);
    font-size: 13px;
    line-height: 1.7;
  }
  
  /* PC向け Bento Grid定義 (1024px以上) */
  @media (min-width: 1024px) {
    .home-life-grid {
      grid-template-columns: repeat(3, minmax(0, 1fr));
      grid-template-rows: auto auto;
      gap: 32px;
    }
    
    /* 1枚目：横長カード（2列） */
    .home-life-card:nth-child(1) {
      grid-column: span 2;
      flex-direction: row;
      background: linear-gradient(135deg, #f7faff 0%, #edf4fc 100%);
      border: 1px solid rgba(48, 111, 197, 0.15);
      border-radius: 16px;
    }
    .home-life-card:nth-child(1) .home-life-img {
      width: 55%;
      height: 100%;
      aspect-ratio: auto;
      border-radius: 16px 0 0 16px;
    }
    .home-life-card:nth-child(1) .home-life-body {
      padding: 32px;
      justify-content: center;
    }
    .home-life-card:nth-child(1) .home-life-title {
      font-size: 18px;
      margin-bottom: 12px;
    }
    
    /* 2枚目：縦長カード（2行またぎ） */
    .home-life-card:nth-child(2) {
      grid-column: 3;
      grid-row: span 2;
    }
    .home-life-card:nth-child(2) .home-life-img {
      aspect-ratio: 3 / 4; /* 縦長写真 */
      flex-shrink: 0;
    }
    .home-life-card:nth-child(2) .home-life-body {
      padding: 24px 0 0;
    }
  }

  @media (max-width: 1023px) {
    .field-stage {
      height: 660px;
    }

    .area-card {
      width: 280px;
      padding: 16px 90px 16px 22px;
      min-height: 108px;
    }

    .area-card:hover,
    .area-card:focus-within,
    .area-card.is-active {
      width: 300px;
      min-height: 260px;
      padding: 20px;
    }

    .area-card--robotics {
      top: 4px;
      bottom: auto;
      left: 50%;
      transform: translateX(-50%);
    }
    .area-card--alife {
      left: 31.25%;
      top: 394px;
      bottom: auto;
      transform: translateX(-50%);
      right: auto;
    }
    .area-card--bio-music {
      left: 68.75%;
      top: 394px;
      bottom: auto;
      transform: translateX(-50%);
      right: auto;
    }

    .home-card-gallery {
      display: none;
    }

    /* アコーディオン要素は767px以下のみ適用するため、1023px〜768pxでは非表示にする */
    .home-card-body-mobile {
      display: none;
    }
  }

  @media (min-width: 768px) {
    /* カードトップの配置調整 */
    .area-card__top {
      margin-bottom: 0;
    }
    
    /* タイトルとリード文 */
    .area-card .area-card__eyebrow {
      max-height: 14px;
      opacity: 0.7;
      overflow: visible;
      margin: 0 0 2px 0;
      font-size: 9px;
      transition: max-height 0.4s ease, opacity 0.3s ease, margin 0.4s ease, font-size 0.4s ease;
    }
    .area-card.is-active .area-card__eyebrow,
    .area-card:hover .area-card__eyebrow,
    .area-card:focus-within .area-card__eyebrow {
      max-height: 20px;
      opacity: 1;
      font-size: 11px;
      margin-bottom: 4px;
    }
    
    .area-card .area-card__title {
      font-size: 16px;
      margin: 0;
      transition: font-size 0.4s ease, margin 0.4s ease;
    }
    .area-card.is-active .area-card__title,
    .area-card:hover .area-card__title,
    .area-card:focus-within .area-card__title {
      font-size: 20px;
      margin-bottom: 6px;
    }
    
    .area-card .area-card__lead {
      max-height: 40px;
      opacity: 0.8;
      overflow: visible;
      margin: 0 0 4px 0;
      font-size: 11px;
      transition: max-height 0.4s ease, opacity 0.3s ease, margin 0.4s ease, font-size 0.4s ease;
    }
    .area-card.is-active .area-card__lead,
    .area-card:hover .area-card__lead,
    .area-card:focus-within .area-card__lead {
      max-height: 40px;
      opacity: 1;
      font-size: 12px;
      margin-bottom: 12px;
    }

    .area-card .area-card__description {
      max-height: 0;
      opacity: 0;
      overflow: hidden;
      margin: 0;
      transition: max-height 0.4s cubic-bezier(0.16, 1, 0.3, 1),
                  opacity 0.3s ease,
                  margin-top 0.4s ease;
    }
    .area-card.is-active .area-card__description,
    .area-card:hover .area-card__description,
    .area-card:focus-within .area-card__description {
      max-height: 120px;
      opacity: 1;
      margin-top: 12px;
    }

    .area-card .area-card__tags {
      max-height: 0;
      opacity: 0;
      overflow: hidden;
      margin: 0;
      transition: max-height 0.4s cubic-bezier(0.16, 1, 0.3, 1),
                  opacity 0.3s ease,
                  margin-top 0.4s ease;
    }
    .area-card.is-active .area-card__tags,
    .area-card:hover .area-card__tags,
    .area-card:focus-within .area-card__tags {
      max-height: 100px;
      opacity: 1;
      margin-top: 18px;
    }

    .area-card .area-card__gallery {
      max-height: 0;
      opacity: 0;
      overflow: hidden;
      margin-top: 0;
      transition: max-height 0.4s cubic-bezier(0.16, 1, 0.3, 1),
                  opacity 0.3s ease,
                  margin-top 0.4s ease;
    }
    .area-card.is-active .area-card__gallery,
    .area-card:hover .area-card__gallery,
    .area-card:focus-within .area-card__gallery {
      max-height: 150px;
      opacity: 1;
      margin-top: 18px;
    }
  }

  @media (max-width: 767px) {
    .field-stage {
      height: auto;
      display: grid;
      gap: 18px;
      background-image: none;
      border: none;
      padding: 0;
      margin-top: 16px;
      margin-bottom: 24px;
    }

    .background-network,
    .connection-svg {
      display: none;
    }

    .center-node,
    .area-card {
      position: relative;
      inset: auto !important;
      transform: none !important;
      width: 100% !important;
      box-shadow: 0 4px 20px rgba(15, 23, 42, 0.04);
    }

    .center-node {
      height: auto;
      border-radius: 28px;
      padding: 32px 24px;
      box-sizing: border-box;
    }

    .center-node::before,
    .center-node::after {
      display: none; /* 呼吸リング非表示 */
    }

    .area-card {
      background: #ffffff;
      border: 1px solid rgba(200, 210, 230, 0.5);
      border-left: 4px solid var(--accent) !important;
      margin-bottom: 0;
      cursor: pointer;
      min-height: 104px;
      padding: 18px 96px 18px 24px !important;
    }

    .area-card__top {
      position: absolute;
      right: 16px;
      top: 52px;
      transform: translateY(-50%);
    }

    .area-card.expanded .area-card__top,
    .area-card:hover .area-card__top,
    .area-card.is-active .area-card__top {
      top: 52px;
    }

    .area-card.is-dimmed {
      opacity: 1 !important;
      filter: none !important;
    }

    .area-card__description {
      display: none; /* 通常時は非表示（アコーディオン） */
    }
    .area-card__gallery {
      display: none; /* 通常時は非表示（アコーディオン） */
    }

    /* アコーディオン挙動 */
    .home-card-body-mobile {
      display: block;
      max-height: 0;
      opacity: 0;
      overflow: hidden;
      transition: max-height 0.4s cubic-bezier(0.16, 1, 0.3, 1),
                  opacity 0.4s ease,
                  margin-top 0.4s ease;
    }

    .area-card.expanded .home-card-body-mobile,
    .area-card:hover .home-card-body-mobile,
    .area-card:focus-within .home-card-body-mobile,
    .area-card.is-active .home-card-body-mobile {
      max-height: 550px;
      opacity: 1;
      margin-top: 14px;
    }

    .area-card.expanded .area-card__arrow,
    .area-card:hover .area-card__arrow,
    .area-card:focus-within .area-card__arrow,
    .area-card.is-active .area-card__arrow {
      transform: rotate(90deg);
    }

    .area-card__gallery-mobile {
      display: flex;
      overflow-x: auto;
      scroll-snap-type: x mandatory;
      gap: 10px;
      margin-top: 16px;
      padding-bottom: 8px;
      -webkit-overflow-scrolling: touch;
    }

    .area-card__gallery-mobile::-webkit-scrollbar {
      height: 4px;
    }
    .area-card__gallery-mobile::-webkit-scrollbar-track {
      background: rgba(0, 0, 0, 0.03);
      border-radius: 2px;
    }
    .area-card__gallery-mobile::-webkit-scrollbar-thumb {
      background: color-mix(in srgb, var(--domain-robot) 15%, transparent);
      border-radius: 2px;
    }

    .area-card__thumb-mobile {
      flex: 0 0 132px;
      aspect-ratio: 4 / 3;
      object-fit: cover;
      border-radius: 8px;
      scroll-snap-align: start;
      background-color: var(--navy-50);
      margin: 0;
    }

    .home-life-grid {
      grid-template-columns: repeat(2, minmax(0, 1fr));
    }
    .home-two-col,
    .home-publication-grid,
    .home-recruit-grid {
      grid-template-columns: 1fr;
    }
    .home-recruit-grid {
      gap: 40px;
    }
    .home-life-grid .home-life-card:first-child {
      grid-column: span 2;
      flex-direction: column;
      background: transparent;
      border: none;
    }
    .home-life-grid .home-life-card:first-child .home-life-img {
      aspect-ratio: 4 / 3;
      height: auto;
      border-radius: 12px;
    }
    .home-life-grid .home-life-card:first-child .home-life-body {
      padding: 16px 0 0;
    }
  }

  @media (max-width: 767px) {
    .home-root p,
    .home-root h2,
    .home-root h3 {
      word-break: break-all;
    }
    .home-container {
      padding: 0 16px;
    }
    .home-section {
      padding-top: 38px;
    }
    .home-section-head {
      align-items: flex-start;
      flex-direction: column;
      gap: 10px;
    }
    .home-title {
      font-size: 22px;
    }
    .home-life-grid {
      grid-template-columns: 1fr;
    }
    .home-life-grid .home-life-card:first-child {
      grid-column: auto;
    }
    .home-special-card {
      align-items: flex-start;
      flex-direction: column;
    }
    .home-recruit-card,
    .home-seminar-card {
      padding: 20px;
      border-radius: 16px;
    }
    .home-activity-img {
      aspect-ratio: 16 / 9;
      max-height: none;
    }
    .home-news-item {
      padding: 14px 0;
    }

    .home-seminar-row {
      grid-template-columns: 58px 82px 1fr;
      gap: 8px;
      padding: 12px;
    }
    .home-button {
      width: 100%;
    }
  }

  /* モーション削減 */
  @media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
      animation-duration: 0.001ms !important;
      animation-iteration-count: 1 !important;
      transition-duration: 0.001ms !important;
      scroll-behavior: auto !important;
    }
  }