* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: sans-serif;
  color: #222;
  background: #f7f7f7;
}

.container {
  width: min(680px, calc(100% - 32px));
  margin: 0 auto;
  padding: 64px 0;
}

.label {
  margin: 0 0 12px;
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  color: #666;
}

h1 {
  margin: 0 0 16px;
  font-size: clamp(2.2rem, 8vw, 3.4rem);
}

.intro,
p,
li {
  line-height: 1.8;
}

.intro {
  margin: 0 0 32px;
}

.section {
  padding: 24px 0;
  border-top: 1px solid #ddd;
}

.section h2 {
  margin: 0 0 12px;
  font-size: 1.2rem;
}

ul {
  margin: 0;
  padding-left: 20px;
}

a {
  color: #222;
}

@media (max-width: 520px) {
  .container {
    width: min(100% - 24px, 680px);
    padding: 40px 0;
  }
}