*, *::before, *::after { box-sizing: border-box; }
  html, body {
    margin: 0;
    padding: 0;
    background: #ffffff;
    color: #000000;
    font-family: Verdana, Arial, Helvetica, sans-serif;
    font-size: 15px;
    line-height: 1.6;
    -webkit-text-size-adjust: 100%;
  }
  a:link { color: #003366; }
  a:visited { color: #666699; }
  a:hover { color: #cc0000; }
  a:focus-visible { outline: 2px solid #cc0000; outline-offset: 2px; }
  .frame {
    margin: 10px;
    border: 3px solid #000000;
    background: #ffffff;
  }
  .header {
    background: #070d3a;
    color: #ffffff;
    border-bottom: 3px solid #000000;
    text-align: center;
    padding: 14px 12px;
    font-family: Arial, Helvetica, sans-serif;
  }
  .brand {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    color: #ffffff;
    text-decoration: none;
  }
  .brand img {
    display: block;
    width: 48px;
    height: 48px;
  }
  .brand strong {
    display: block;
    color: #ffffff;
    font-size: 28px;
    line-height: 1.1;
  }
  .brand span {
    display: block;
    color: #c8d3ee;
    font-size: 13px;
    margin-top: 3px;
  }
  .nav {
    border-bottom: 3px solid #000000;
    background: #f4f4f4;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 8px;
    padding: 10px 12px;
    font-family: Arial, Helvetica, sans-serif;
    font-size: 16px;
    line-height: 1;
  }
  .nav a {
    color: #003366;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    min-height: 38px;
    padding: 0 16px;
    border: 1px solid #bfc7d6;
    border-radius: 4px;
    background: #ffffff;
    white-space: nowrap;
  }
  .nav a:hover { color: #cc0000; border-color: #cc0000; }
  .content {
    max-width: 760px;
    margin: 0 auto;
    padding: 28px 24px 38px;
  }
  h1 {
    font-family: Arial, Helvetica, sans-serif;
    font-size: 24px;
    color: #cc0000;
    margin: 0 0 12px;
  }
  h2 {
    font-family: Arial, Helvetica, sans-serif;
    font-size: 17px;
    color: #cc0000;
    margin: 24px 0 8px;
  }
  p { margin: 0 0 11px; }
  .lead {
    font-family: Arial, Helvetica, sans-serif;
    font-size: 18px;
    color: #202a3b;
  }
  .box {
    border: 1px solid #b7bfd3;
    background: #f7f9ff;
    padding: 12px 14px;
    margin: 16px 0;
  }
  .footer {
    border-top: 3px solid #000000;
    background: #f4f4f4;
    text-align: center;
    padding: 14px 12px;
    font-size: 13px;
  }
  @media (max-width: 640px) {
    .frame { margin: 0; border-left: 0; border-right: 0; }
    .brand strong { font-size: 23px; }
    .content { padding: 22px 18px 32px; }
  }