.preface-section {
  background: #f5f5f1;
  display: grid;
  grid-template-columns: .82fr 1.18fr;
  gap: 9vw;
  padding: 125px 8vw;
  border-top: 1px solid rgba(24, 51, 61, .14);
  border-bottom: 1px solid rgba(24, 51, 61, .14);
}

.preface-heading h2 {
  margin: 0;
  font-family: Georgia, serif;
  font-size: clamp(45px, 5.2vw, 76px);
  font-weight: 400;
  line-height: 1.02;
  letter-spacing: -.035em;
}

.preface-heading h2 em {
  color: #5f7a91;
  font-weight: 400;
}

.preface-content {
  color: #40545c;
  font-size: 15px;
  line-height: 1.85;
}

.preface-content > p {
  margin: 0 0 22px;
}

.preface-content blockquote {
  margin: 45px 0 28px;
  padding: 28px 0 0;
  border-top: 1px solid #5f7a91;
  color: #18333d;
  font-family: Georgia, serif;
  font-size: clamp(24px, 2.6vw, 38px);
  font-style: italic;
  line-height: 1.35;
}

.preface-signature {
  color: #18333d;
  font-family: Georgia, serif;
  font-size: 22px;
  font-weight: 400;
  line-height: 1.2;
  letter-spacing: .01em;
}

.preface-signature span {
  display: block;
  margin-top: 9px;
  color: #7b898e;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 8px;
  font-weight: 600;
  letter-spacing: .13em;
  text-transform: uppercase;
}

@media (max-width: 900px) {
  .preface-section {
    grid-template-columns: 1fr;
    gap: 48px;
    padding: 90px 7vw;
  }

  .preface-heading h2 {
    font-size: clamp(43px, 12vw, 66px);
  }

  .preface-content blockquote {
    margin-top: 38px;
  }
}