/* events ページ固有スタイル */

/* ページヒーロー（プロフィールページと同スタイル） */
    .page-hero {      background: #1e3a5f;
      padding: 1.7rem 0 1.3rem;
      color: #fff;
    }
    .page-hero h1 {
      font-family: var(--font-display);
      font-size: clamp(1.8rem, 4vw, 2.8rem);
      font-weight: 700;
      margin: 0 0 0.05rem;
    }
    .page-hero-sub {
      font-size: 0.8rem;
      letter-spacing: 0.2em;
      opacity: 0.75;
      font-weight: 300;
    }

    /* イベントグリッドセクション */
    #activities-full {
      padding: 3rem 0 5rem;
      background: var(--color-warm-white);
    }
    .activities-full-header {
      text-align: center;
      margin-bottom: 2.5rem;
    }
    .activities-full-header .section-eyebrow {
      color: #8B6000;
    }
    .activities-full-title {
      font-family: var(--font-display);
      font-size: clamp(1.3rem, 3vw, 1.8rem);
      font-weight: 700;
      color: var(--color-text);
      margin: 0.5rem 0 0;
    }
    .activities-full-desc {
      margin: 1rem auto 0;
      max-width: 820px;
      font-size: 0.88rem;
      line-height: 1.9;
      color: var(--color-text-sub);
    }

    /* バナーグリッド（4列、トップの6列より大きく） */
    .activities-full-grid {
      list-style: none;
      padding: 0;
      margin: 0;
      display: grid;
      grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
      gap: 1.2rem;
    }
    @media (min-width: 1024px) {
      .activities-full-grid {
        grid-template-columns: repeat(4, 1fr);
      }
    }
    @media (max-width: 767px) {
      .activities-full-grid {
        grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
        gap: 0.8rem;
      }
    }

    .activity-full-item {
      display: flex;
      flex-direction: column;
    }

    /* ボタン（画像ラッパー）*/
    .activity-full-btn {
      display: block;
      width: 100%;
      padding: 0;
      border: none;
      background: none;
      cursor: pointer;
      position: relative;
      aspect-ratio: 3/4;
      overflow: hidden;
      border-radius: 6px;
    }
    .activity-full-btn img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      display: block;
      transition: transform 0.4s ease;
    }
    .activity-full-btn:hover img {
      transform: scale(1.04);
    }
    /* ホバーオーバーレイ */
    .activity-full-overlay {
      position: absolute;
      inset: 0;
      background: rgba(30, 30, 60, 0.55);
      display: flex;
      align-items: flex-end;
      padding: 0.8rem;
      opacity: 0;
      transition: opacity 0.3s;
    }
    .activity-full-btn:hover .activity-full-overlay,
    .activity-full-btn:focus-visible .activity-full-overlay {
      opacity: 1;
    }
    .activity-full-overlay-label {
      color: #fff;
      font-size: 0.8rem;
      font-weight: 600;
      line-height: 1.4;
      text-align: left;
    }

    /* 画像下のテキスト（常時表示・黒・センター寄せ） */
    .activity-full-info {
      padding: 0.5rem 0.2rem 0;
      text-align: center;
    }
    .activity-full-date {
      display: block;
      font-size: 0.85rem;
      color: var(--color-text-sub);
      margin-bottom: 0.2rem;
    }
    .activity-full-title {
      font-size: 0.8rem;
      color: var(--color-text);
      font-weight: 600;
      line-height: 1.45;
      margin: 0;
    }

    /* 年別グループ */
    .year-group {
      margin-bottom: 3rem;
    }
    .year-heading {
      font-family: var(--font-display);
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--color-text);
      border-bottom: 2px solid var(--color-border);
      padding-bottom: 0.4rem;
      margin: 0 0 1.2rem;
    }