body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    Oxygen, Ubuntu, Cantarell, sans-serif;
  max-width: 600px;
  margin: 80px auto;
  padding: 20px;
  line-height: 1.6;
  color: #333;
}
h1 {
  color: #2563eb;
  margin-bottom: 0.5rem;
}
.subtitle {
  color: #666;
  font-size: 1.1rem;
  margin-bottom: 2rem;
}
a {
  color: #2563eb;
  text-decoration: none;
}
a:hover {
  text-decoration: underline;
}
.info {
  background: #f3f4f6;
  padding: 1rem;
  border-radius: 8px;
  margin: 1rem 0;
}
.footer {
  margin-top: 2rem;
  padding-top: 1rem;
  border-top: 1px solid #e5e7eb;
  font-size: 0.9rem;
  color: #666;
}