body {
  font-family:
    -apple-system,
    BlinkMacSystemFont,
    "Hiragino Sans",
    "Hiragino Kaku Gothic ProN",
    "Noto Sans JP",
    "Yu Gothic",
    sans-serif;
  font-size: 13.5px;
  line-height: 1.7;
  letter-spacing: 0.015em;
}

main article header h1 {
  font-size: 1rem;
  font-weight: 400;
  letter-spacing: 0.03em;
  opacity: 0.85;
}

h1, h2, h3, h4, h5, h6 {
  font-family:
    -apple-system,
    BlinkMacSystemFont,
    "Hiragino Sans",
    "Hiragino Kaku Gothic ProN",
    "Noto Sans JP",
    "Yu Gothic",
    sans-serif;
  font-weight: 500;
  line-height: 1.35;
  letter-spacing: 0.02em;
  margin-top: 1.5em;
  margin-bottom: 0.5em;
}

h1 {
  font-size: 1.45rem;
  margin-top: 1.5em;
  margin-bottom: 1.5em;
}

h2 {
  font-size: 1rem;
  margin-top: 2em;
}
main article header h2 {
  padding-left: 0;
  border-left: none;
  margin-top: 0.8em;
}

h3 {
  font-size: 0.8rem;
}

p {
  margin-bottom: 1em;
}