* {
  box-sizing: border-box;
}

body {
  margin: 0;

  font-family:
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    "Hiragino Sans",
    "Yu Gothic",
    Arial,
    sans-serif;

  color: #333;
  background: #fafafa;

  line-height: 1.7;
}

.container {
  width: min(720px, calc(100% - 40px));
  margin: 0 auto;
}

header {
  padding: 80px 0 50px;
}

h1 {
  margin: 0;

  font-size: 34px;
  font-weight: 500;
}

.subtitle {
  margin-top: 8px;

  color: #888;
}

main {
  padding-bottom: 80px;
}

section {
  margin-top: 50px;
}

h2 {
  margin-bottom: 16px;

  font-size: 19px;
  font-weight: 500;

  border-bottom: 1px solid #ddd;
  padding-bottom: 8px;
}

p {
  margin: 10px 0;
}

ul {
  padding-left: 22px;
}

li {
  margin: 6px 0;
}

.item {
  margin: 22px 0;
}

.date {
  font-size: 13px;
  color: #999;
}

footer {
  border-top: 1px solid #e5e5e5;

  padding: 30px 0;

  font-size: 13px;
  color: #999;
}