/* =============================================
     DESIGN TOKENS — カテゴリ追加時はここに追記
  ============================================= */
  :root {
    --bg:         #0a0a0c;
    --bg-card:    #111116;
    --bg-card-h:  #16161d;
    --border:     #1e1e28;
    --text:       #d4d0c8;
    --text-dim:   #7a7870;
    --text-label: #5a5860;

    /* カテゴリカラー */
    --c-fo:   #b84c2a;   /* 前線騎士団 — 炎赤 */
    --c-zg:   #2a6eb8;   /* 中央警備隊 — 帝国青 */
    --c-va:   #7b3fb5;   /* 監察特務隊 — 深紫 */
    --c-ac:   #c8a45a;   /* 士官学校   — 金 */
    --c-orc:  #4a7a3a;   /* オーク帝国 — 野営緑 */
    --c-fg:   #4a8a8a;   /* 国外勢力   — 海碧 */
    --c-ind:  #8a6a3a;   /* 独立勢力   — 砂漠茶 */

    --gold:   #c8a45a;
    --crimson:#8b0000;
  }

  *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

  body {
    background: var(--bg);
    color: var(--text);
    font-family: "Noto Serif JP", serif;
    min-height: 100vh;
    /* 微細ノイズ風グラデーション */
    background-image:
      radial-gradient(ellipse 80% 50% at 50% -10%, #1a0a0a22, transparent),
      radial-gradient(ellipse 60% 40% at 80% 80%, #0a0a1a18, transparent);
  }

  a { color: inherit; text-decoration: none; }

  /* ── ナビ ── */
  .back-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin: 28px 0 0 28px;
    color: var(--gold);
    font-size: 11px;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    opacity: 0.7;
    transition: opacity 0.2s;
  }
  .back-link:hover { opacity: 1; }

  /* ── ページヘッダー ── */
  .page-header {
    max-width: 960px;
    margin: 36px auto 0;
    padding: 0 28px;
    border-left: 2px solid var(--crimson);
    padding-left: 20px;
  }

  .eyebrow {
    color: var(--text-label);
    font-family: "Cinzel", serif;
    font-size: 10px;
    letter-spacing: 0.24em;
    margin-bottom: 10px;
  }

  .page-header h1 {
    font-family: "Noto Serif JP", serif;
    font-size: 1.9rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    color: #e8e4dc;
  }

  .lead {
    margin-top: 14px;
    color: var(--text-dim);
    line-height: 2;
    font-size: 0.88rem;
  }

  /* ── セクション ── */
  .section {
    max-width: 960px;
    margin: 52px auto 0;
    padding: 0 28px;
  }

  .section-head {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 28px;
  }

  .section-head-line {
    flex: 1;
    height: 1px;
    background: linear-gradient(to right, var(--border), transparent);
  }

  .section-title {
    font-family: "Cinzel", serif;
    font-size: 10px;
    letter-spacing: 0.22em;
    color: var(--text-label);
    text-transform: uppercase;
    white-space: nowrap;
  }

  /* ── カードグリッド ── */
  .card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(270px, 1fr));
    gap: 16px;
  }

  /* ── カテゴリカード ── */
  .cat-card {
    position: relative;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 24px 22px 22px;
    overflow: hidden;
    transition: transform 0.22s ease, border-color 0.22s ease, background 0.22s ease;
    cursor: pointer;
    /* 上端のカラーライン */
    border-top: 2px solid var(--accent, #333);
  }

  .cat-card::before {
    content: "";
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse 60% 80% at 50% 0%, var(--accent-glow, transparent), transparent 70%);
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.3s;
  }

  .cat-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent, #555);
    background: var(--bg-card-h);
  }

  .cat-card:hover::before { opacity: 1; }

  /* カード内レイアウト */
  .card-top {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    margin-bottom: 14px;
  }

  .card-label {
    font-family: "Cinzel", serif;
    font-size: 9px;
    letter-spacing: 0.2em;
    color: var(--accent, var(--text-label));
    opacity: 0.85;
    padding: 3px 7px;
    border: 1px solid var(--accent, var(--border));
    border-radius: 3px;
    text-transform: uppercase;
  }

  .card-icon {
    font-size: 1.4rem;
    line-height: 1;
    filter: drop-shadow(0 0 6px var(--accent-glow, transparent));
  }

  .card-title {
    font-family: "Noto Serif JP", serif;
    font-size: 1.12rem;
    font-weight: 600;
    letter-spacing: 0.06em;
    color: #e8e4dc;
    margin-bottom: 10px;
  }

  .card-desc {
    color: var(--text-dim);
    font-size: 0.84rem;
    line-height: 1.85;
  }

  .card-arrow {
    display: inline-block;
    margin-top: 14px;
    font-family: "Cinzel", serif;
    font-size: 9px;
    letter-spacing: 0.18em;
    color: var(--accent, var(--text-label));
    opacity: 0;
    transform: translateX(-4px);
    transition: opacity 0.2s, transform 0.2s;
  }

  .cat-card:hover .card-arrow {
    opacity: 0.8;
    transform: translateX(0);
  }

  /* ── フッター ── */
  .page-footer {
    max-width: 960px;
    margin: 64px auto 72px;
    padding: 0 28px;
    display: flex;
    justify-content: center;
  }

  .footer-link {
    font-family: "Cinzel", serif;
    font-size: 10px;
    letter-spacing: 0.22em;
    color: var(--gold);
    opacity: 0.5;
    text-transform: uppercase;
    transition: opacity 0.2s;
  }

  .footer-link:hover { opacity: 1; }

  /* =============================================
     レスポンシブ
  ============================================= */
  @media (max-width: 600px) {
    .card-grid { grid-template-columns: 1fr; }
    .page-header h1 { font-size: 1.5rem; }
  }