/* Shared privacy/legal page styles (en/ja共通). 色は各ページ :root で指定。 */
      * { box-sizing: border-box; }
      html, body {
        margin: 0;
        padding: 0;
        background: var(--bg);
        color: var(--text);
        font-family: -apple-system, BlinkMacSystemFont, "SF Pro Rounded", "Inter", "Hiragino Sans", "Noto Sans JP", "Helvetica Neue", sans-serif;
        font-feature-settings: "palt";
        line-height: 1.75;
        -webkit-font-smoothing: antialiased;
      }
      body {
        min-height: 100vh;
        background:
          radial-gradient(ellipse 70% 50% at 50% -10%, color-mix(in srgb, var(--accent) 18%, transparent), transparent 60%),
          var(--bg);
      }
      .container { max-width: 760px; margin: 0 auto; padding: clamp(36px, 8vw, 88px) 24px 80px; }
      .topbar { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 28px; flex-wrap: wrap; }
      .back { display: inline-flex; align-items: center; gap: 6px; font-size: 13px; font-weight: 700; color: var(--text-secondary); text-decoration: none; transition: color 0.15s ease; }
      .back:hover { color: var(--accent); }
      .lang-switcher { display: inline-flex; align-items: center; gap: 2px; font-size: 11px; font-weight: 800; letter-spacing: 0.5px; background: rgba(255, 255, 255, 0.04); border: 0.5px solid var(--hairline-strong); border-radius: 999px; padding: 4px; }
      .lang-switcher a, .lang-switcher strong { display: inline-flex; align-items: center; padding: 5px 12px; border-radius: 999px; color: var(--text-secondary); text-decoration: none; font-weight: 800; }
      .lang-switcher a:hover { color: var(--text); }
      .lang-switcher strong { background: var(--accent); color: var(--on-accent); text-shadow: var(--on-accent-shadow, none); }
      h1 { font-size: clamp(26px, 5vw, 36px); font-weight: 900; letter-spacing: -0.02em; margin: 0 0 10px; padding-bottom: 16px; border-bottom: 2px solid var(--accent); }
      .update-date { color: var(--text-tertiary); font-size: 13px; margin: 0 0 8px; }
      h2 { font-size: clamp(18px, 2.6vw, 22px); font-weight: 800; letter-spacing: -0.01em; margin: 38px 0 12px; color: var(--text); }
      h3 { font-size: 15px; font-weight: 800; margin: 22px 0 10px; color: var(--text); }
      p { margin: 0 0 14px; color: var(--text-secondary); font-size: 15px; }
      strong { color: var(--text); font-weight: 700; }
      ul { padding-left: 22px; margin: 0 0 14px; }
      li { margin-bottom: 8px; color: var(--text-secondary); font-size: 15px; }
      p a, li a { color: var(--accent-hi); text-decoration: none; }
      p a:hover, li a:hover { text-decoration: underline; }
      .contact-button { display: inline-flex; align-items: center; gap: 8px; padding: 13px 22px; background: linear-gradient(135deg, var(--accent), var(--accent-hi)); color: var(--on-accent); text-decoration: none; font-weight: 800; font-size: 14px; border-radius: 999px; box-shadow: 0 8px 24px color-mix(in srgb, var(--accent) 42%, transparent), inset 0 1px 0 rgba(255, 255, 255, 0.25); transition: transform 0.2s ease, box-shadow 0.2s ease; }
      .contact-button:hover { transform: translateY(-2px); box-shadow: 0 12px 32px color-mix(in srgb, var(--accent) 55%, transparent); }
      footer { margin-top: 56px; padding-top: 24px; border-top: 0.5px solid var(--hairline); font-size: 12px; color: var(--text-tertiary); text-align: center; }
      footer a { color: var(--text-secondary); text-decoration: none; }
      footer a:hover { color: var(--accent); }
      @media (prefers-reduced-motion: reduce) { *, *::before, *::after { transition: none !important; } }
    
      .lead { color: var(--text-secondary); font-size: 15px; margin: 0 0 8px; }
      .section-head { display: flex; align-items: baseline; gap: 10px; margin: 40px 0 16px; }
      .section-num { font-size: 12px; font-weight: 800; letter-spacing: 1.5px; color: var(--accent); font-variant-numeric: tabular-nums; }
      .section-title { font-size: 18px; font-weight: 900; letter-spacing: -0.01em; margin: 0; }
      .pp-list { display: flex; flex-direction: column; gap: 10px; }
      .pp-item { display: flex; align-items: center; gap: 14px; padding: 16px 18px; background: linear-gradient(145deg, rgba(255, 255, 255, 0.04), rgba(255, 255, 255, 0) 50%), var(--bg-elevated); border: 0.5px solid var(--hairline); border-radius: 14px; text-decoration: none; color: inherit; transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease; }
      .pp-item:hover { transform: translateY(-2px); border-color: color-mix(in srgb, var(--accent) 40%, transparent); box-shadow: 0 12px 28px -8px rgba(0, 0, 0, 0.6); }
      .pp-name { font-size: 16px; font-weight: 800; margin: 0; }
      .pp-tag { font-size: 11px; font-weight: 700; color: var(--text-tertiary); letter-spacing: 0.6px; text-transform: uppercase; margin-top: 2px; }
      .pp-arrow { margin-left: auto; color: var(--text-tertiary); font-size: 18px; transition: color 0.2s ease, transform 0.2s ease; }
      .pp-item:hover .pp-arrow { color: var(--accent); transform: translateX(3px); }
      .callout { background: var(--surface); border: 0.5px solid var(--hairline-strong); border-left: 3px solid var(--accent); border-radius: 12px; padding: 14px 18px; margin: 0 0 14px; }