body {
  margin: 0;
  font-family: "Hiragino Sans", "Noto Sans JP", sans-serif;
  background: #f7f5f0;
  color: #1f2433;
}

main {
  max-width: 640px;
  margin: 64px auto;
  padding: 0 16px;
}

h1 {
  font-size: 2rem;
  color: #c2551b;
}

.lead {
  color: #4a5060;
}

.card {
  background: #ffffff;
  border: 1px solid #e3dfd6;
  border-radius: 12px;
  padding: 16px 24px;
}