:root {
    --bg-primary: #FAFAF8;
    --bg-elevated: #FFFFFF;
    --border: rgba(0,0,0,0.07);
    --text-primary: #1A1A1F;
    --text-secondary: #5C5C66;
    --text-muted: #9A9AA3;
    --blue: #2C5282;
    --ykb: #002FA7;
    --ykb-hover: #0038C6;
    --font-display: 'Fraunces', Georgia, serif;
    --font-body: 'DM Sans', -apple-system, sans-serif;
  }
  * { margin: 0; padding: 0; box-sizing: border-box; }
  body { font-family: var(--font-body); background: var(--bg-primary); color: var(--text-primary); -webkit-font-smoothing: antialiased; line-height: 1.65; }

  nav {
    position: fixed; top: 0; left: 0; right: 0; z-index: 100;
    padding: 18px 48px;
    display: flex; align-items: center; justify-content: space-between;
    background: rgba(250,250,247,0.9);
    backdrop-filter: blur(24px);
    border-bottom: 1px solid var(--border);
  }
  .nav-logo {
    display: flex; align-items: center; gap: 10px;
    font-family: var(--font-display); font-weight: 700; font-size: 20px;
    color: var(--text-primary); text-decoration: none; letter-spacing: -0.02em;
  }
  .nav-logo img { height: 24px; width: auto; display: block; }
  .nav-links { display: flex; align-items: center; gap: 36px; list-style: none; }
  .nav-links a { font-size: 14px; font-weight: 500; color: var(--text-secondary); text-decoration: none; transition: color 0.2s; }
  .nav-links a:hover { color: var(--text-primary); }
  .nav-cta {
    padding: 10px 24px; background: var(--ykb); color: #fff; border-radius: 6px;
    font-family: var(--font-body); font-size: 14px; font-weight: 600;
    text-decoration: none; transition: all 0.2s;
  }
  .nav-cta:hover { background: var(--ykb-hover); transform: translateY(-1px); }

  main {
    padding: 140px 48px 80px;
    max-width: 720px;
    margin: 0 auto;
  }
  .page-title {
    font-family: var(--font-display);
    font-size: clamp(32px, 4vw, 42px);
    font-weight: 600;
    letter-spacing: -0.025em;
    margin-bottom: 8px;
  }
  .page-date { font-size: 14px; color: var(--text-muted); margin-bottom: 32px; }
  .policy p { margin-bottom: 16px; color: var(--text-primary); font-size: 15px; }
  .policy p.lead { color: var(--text-secondary); }
  .policy h2 {
    font-family: var(--font-display);
    font-size: 18px;
    font-weight: 600;
    margin-top: 32px;
    margin-bottom: 12px;
    color: var(--text-primary);
  }
  .policy ol, .policy ul { margin: 0 0 16px 1.5em; }
  .policy li { margin-bottom: 8px; font-size: 15px; color: var(--text-primary); }
  .policy a { color: var(--ykb); text-decoration: none; }
  .policy a:hover { text-decoration: underline; }
  footer {
    border-top: 1px solid var(--border);
    padding: 32px 48px;
    text-align: center;
    font-size: 13px;
    color: var(--text-muted);
  }
  footer a { color: var(--ykb); text-decoration: none; }
  footer a:hover { text-decoration: underline; }
  @media (max-width: 900px) {
    nav { padding: 16px 24px; }
    .nav-links { display: none; }
    main { padding: 120px 24px 60px; }
  }