body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Noto Sans JP", sans-serif;
  background: #f6f7fa;
  color: #171b20;
  line-height: 1.7;
}
main {
  max-width: 40rem;
  margin: 0 auto;
  padding: 2.5rem 1.25rem 4rem;
}
h1 {
  font-size: 1.35rem;
  margin: 0 0 0.35rem;
}
.meta {
  color: #57616d;
  font-size: 0.85rem;
  margin-bottom: 1.25rem;
  line-height: 1.6;
}
nav.links {
  margin: 0 0 2rem;
  font-size: 0.85rem;
}
nav.links a {
  color: #0b57d0;
}
h2 {
  font-size: 1rem;
  margin: 1.75rem 0 0.4rem;
}
p {
  margin: 0 0 0.75rem;
  font-size: 0.95rem;
  color: #3d4650;
}
ul {
  margin: 0 0 0.75rem;
  padding-left: 1.2rem;
  font-size: 0.95rem;
  color: #3d4650;
}
li {
  margin: 0 0 0.35rem;
}
.lead {
  margin: 0 0 1.5rem;
  padding: 0.95rem 1rem;
  background: #fff;
  border: 1px solid #d6dce3;
  font-size: 0.92rem;
  color: #3d4650;
}
.note {
  margin-top: 1.5rem;
  padding: 0.9rem 1rem;
  background: #fff;
  border: 1px solid #d6dce3;
  font-size: 0.85rem;
  color: #57616d;
}