/* 공기의 변화 — 별책 스타일 (bold.css 위에 얹음) */

.change-hero {
  padding: clamp(72px, 12vh, 160px) clamp(20px, 5vw, 72px) clamp(40px, 6vh, 72px);
  border-bottom: 1px solid var(--hair);
}
.change-hero h1 {
  margin-top: 18px;
  font-size: clamp(40px, 7vw, 88px);
  font-weight: 800;
  letter-spacing: -0.018em;
  line-height: 0.96;
}
.change-sub {
  margin-top: 16px;
  max-width: 38ch;
  font-size: clamp(15px, 1.6vw, 19px);
  font-weight: 700;
  letter-spacing: 0.005em;
  color: var(--on-dim);
  line-height: 1.4;
}
.change-intro {
  margin-top: 26px;
  max-width: 58ch;
  font-size: 15px;
  line-height: 1.72;
  color: var(--on-dim);
}

/* 에세이 영역 */
.essay { padding: clamp(60px, 10vh, 140px) clamp(20px, 5vw, 72px); }
.essay .plate-inner { max-width: 720px; }

.essay-section {
  padding: clamp(40px, 5vw, 64px) 0;
  border-top: 1px solid var(--hair);
}
.essay-section:first-child { border-top: 0; padding-top: 0; }

.essay-no {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--on-faint);
  margin-bottom: 12px;
}
.essay-section h2 {
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 800;
  letter-spacing: -0.015em;
  line-height: 1.12;
  margin-bottom: clamp(22px, 2.6vw, 32px);
}
.essay-section p {
  font-size: clamp(15px, 1.4vw, 17px);
  line-height: 1.8;
  color: var(--on);
  margin-bottom: 1.2em;
  letter-spacing: 0.005em;
}
.essay-section p b { font-weight: 800; }

.essay-back {
  margin-top: clamp(32px, 4vw, 56px);
  padding-top: clamp(20px, 2vw, 28px);
  border-top: 1px solid var(--hair);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
.essay-back a {
  color: var(--on-dim);
  text-decoration: none;
  transition: color 0.2s ease;
}
.essay-back a:hover { color: var(--on); }

@media (max-width: 560px) {
  .change-hero { padding: clamp(56px, 10vh, 100px) 20px clamp(32px, 5vh, 48px); }
  .change-hero h1 { font-size: clamp(36px, 11vw, 54px); }
  .essay { padding: clamp(48px, 8vh, 80px) 20px; }
  .essay-section h2 { font-size: clamp(24px, 7vw, 32px); }
  .essay-section p { font-size: 15px; line-height: 1.74; }
}