body {
    font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Helvetica Neue", "Microsoft YaHei", sans-serif;
    font-size: 16px;
    max-width: 800px;
    margin: 0 auto;
    padding: 60px 24px;
    color: #4a3a5a;
    background: linear-gradient(180deg, #fdf4ff 0%, #f5ecfb 100%);
    min-height: 100vh;
    line-height: 1.85;
  }
  h1 { font-size: 28px;
    color: #6b4a8a;
    margin-bottom: 8px;
    text-align: center;
    background: linear-gradient(135deg, #ff6fa8, #a674f0);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
  }
  .legal-header {
    position: sticky;
    top: 0;
    z-index: 20;
    margin: -60px -24px 28px;
    padding: 6px 24px;
    background: linear-gradient(180deg, rgba(253,244,255,0.97) 0%, rgba(245,236,251,0.9) 100%);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border-bottom: 1px dashed #d8c4f0;
  }
  .legal-header h1 { margin: 0; font-size: 22px; line-height: 1.2; }
  .legal-meta {
    text-align: center;
    margin-bottom: 28px;
    padding-bottom: 20px;
    border-bottom: 1px dashed #d8c4f0;
  }
  .legal-meta .meta-line {
    display: inline-block;
    margin: 0 12px;
    font-size: 14px;
    color: #8a7898;
  }

  .legal-meta .meta-label {
    color: #b8a8c8;
    margin-right: 4px;
  }
  h2 {
    font-size: 20px;
    color: #6b4a8a;
    margin: 32px 0 14px;
    padding-left: 12px;
    border-left: 4px solid;
    border-image: linear-gradient(180deg, #ff6fa8, #a674f0) 1;
  }
  h2.preface {
    border-image: none;
    border-left: 4px solid #d8c4f0;
    color: #8a6aaa;
  }
  h3 {
    font-size: 15px;
    color: #4a3a5a;
    margin: 16px 0 8px;
    font-weight: 600;
  }
  p {
    margin: 12px 0;
    text-indent: 2em;
    text-align: justify;
    font-size: 16px;
    color: #4a3a5a;
  }
  p.numbered {
    text-indent: 0;
    padding-left: 2.8em;
    position: relative;
  }
  p.numbered::before {
    content: attr(data-number) "、";
    position: absolute;
    left: 0;
    color: #8a6aaa;
    font-weight: 600;
  }
  p.subnumbered {
    padding-left: 3.4em;
    margin-left: 1.2em;
  }
  p.subnumbered::before {
    content: attr(data-number);
    left: 0.8em;
  }
  ol.legal-list {
    margin: 8px 0 16px;
    padding-left: 2.8em;
    list-style: none;
    counter-reset: legal-item;
  }
  ol.legal-list li {
    counter-increment: legal-item;
    position: relative;
  }
  ol.legal-list li::before {
    content: "(" counter(legal-item) ")";
    position: absolute;
    left: -2.8em;
    color: #8a6aaa;
  }
  ol.legal-list li {
    margin: 6px 0;
    text-align: justify;
    font-size: 16px;
    line-height: 1.85;
  }
  .back {
    display: inline-block;
    margin-top: 40px;
    padding: 8px 18px;
    color: #ff6fa8;
    text-decoration: none;
    font-size: 14px;
    border: 1px solid #ffc8e0;
    border-radius: 20px;
    transition: background 0.2s;
  }
  .back:hover {
    background: #ffe8f3;
  }
  .back-wrap {
    text-align: center;
    margin-top: 40px;
  }
    @media (max-width: 900px) {
    body {
      padding: 24px 16px;
      max-width: 100%;
      font-size: 15px;
      line-height: 1.78;
      -webkit-text-size-adjust: 100%;
      padding-left: max(16px, env(safe-area-inset-left));
      padding-right: max(16px, env(safe-area-inset-right));
      padding-bottom: max(40px, env(safe-area-inset-bottom));
    }
    h1 {
      font-size: 22px !important;
      line-height: 1.4;
    }
    h2 {
      font-size: 16.5px;
      margin: 26px 0 12px;
      line-height: 1.5;
    }
    h3 {
      font-size: 14.5px;
      margin: 18px 0 8px;
    }
    p {
      font-size: 14.5px;
      margin: 10px 0;
      line-height: 1.78;
    }
    p.numbered {
      padding-left: 2.2em;
    }
    .legal-header {
      padding: 8px 16px !important;
      margin: -24px -16px 14px !important;
    }
    .legal-header h1 {
      font-size: 17px !important;
    }
    .legal-meta {
      margin-bottom: 16px;
      padding-bottom: 14px;
    }
    .legal-meta .meta-line {
      display: block;
      margin: 4px 0;
      font-size: 12.5px;
    }
    .legal-meta .meta-label {
      margin-right: 6px;
    }
    ol.legal-list {
      padding-left: 22px;
    }
    ol.legal-list li {
      font-size: 14px;
      line-height: 1.75;
    }
    .back {
      padding: 7px 14px;
      font-size: 13px;
      margin-top: 28px;
    }
    .back-wrap {
      margin-top: 28px;
    }
  }

  @media (max-width: 900px) and (max-height: 500px) and (orientation: landscape) {
    body { padding: 16px 14px; }
    h2 { margin: 18px 0 8px; font-size: 15.5px; }
    p { font-size: 13.5px; }
  }

  @media (max-width: 360px) {
    body { font-size: 14px; padding: 20px 14px; }
    h1 { font-size: 20px !important; }
    h2 { font-size: 15.5px; }
    p { font-size: 13.5px; }
  }

  a, button {
    -webkit-tap-highlight-color: rgba(255, 111, 168, 0.15);
  }
  ol.legal-list a, .back {
    -webkit-touch-callout: none;
    -webkit-user-select: none;
    user-select: none;
  }