body {
  font-family: 'Sawarabi Gothic', 'Noto Sans JP', 'Yu Gothic', 'Meiryo',
    sans-serif;
  background: #f7f7fa;
  margin: 0;
  padding: 0;
  color: #222;
}
main {
  padding: 2em 1em;
  max-width: 800px;
  margin: 0 auto;
  background: #fff;
  border-radius: 12px;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
}
h1 {
  margin-top: 0;
  font-size: 2.2em;
  color: #b3872b;
  border-left: 6px solid #f4cb86;
  padding-left: 0.5em;
  margin-bottom: 1.2em;
  letter-spacing: 0.05em;
}
section {
  margin-bottom: 2.5em;
  padding: 1.2em 1em 1em 1em;
  background: #fff8ef;
  border-radius: 8px;
  border-left: 4px solid #f4cb86;
  box-shadow: 0 1px 4px rgba(244, 203, 134, 0.08);
}
h2 {
  color: #b3872b;
  font-size: 1.25em;
  margin-top: 0;
  margin-bottom: 0.7em;
  letter-spacing: 0.03em;
}
p {
  font-size: 1.08em;
  line-height: 2.1;
  margin: 0 0 0.8em 0;
}
.right {
  text-align: right;
  color: #888;
  font-size: 1em;
  margin-top: 2em;
}