/* ─── Reset ─── */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

/* ─── Base ─── */
html {
  font-size: 16px;

}

body {
  background-color: #0a0a0a;
  color: #e8e0d4;
  font-family: 'Noto Serif SC', 'STSong', 'Songti SC', 'FangSong', '宋体', serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ─── Header ─── */
header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  padding: 52px 64px 44px;
}

.header-left h1 {
  font-size: 52px;
  font-weight: 400;
  letter-spacing: 0.1em;
  line-height: 1;
  color: #e8e0d4;
}

.header-left .tagline {
  font-size: 11px;
  font-weight: 300;
  color: #4a4a4a;
  letter-spacing: 0.14em;
  margin-top: 10px;
  line-height: 1;
}

.header-right {
  display: flex;
  align-items: center;
  gap: 28px;
  padding-top: 10px;
}

.header-right a {
  font-size: 12px;
  font-weight: 300;
  color: #666;
  text-decoration: none;
  letter-spacing: 0.1em;
  transition: color 0.2s ease;
}

.header-right a:hover {
  color: #e8e0d4;
}

/* ─── Shared section styles ─── */
main {
  padding: 0 64px 88px;
}

/* 大区间距 */
.zone + .zone {
  margin-top: 120px;
}

/* 区内横图→竖图间距 */
section + section {
  margin-top: 80px;
}

figure {
  display: flex;
  flex-direction: column;
}

figure img {
  width: 100%;
  display: block;
  object-fit: cover;
}

figcaption {
  font-size: 9px;
  font-weight: 300;
  color: #4a4a4a;
  text-align: center;
  letter-spacing: 0.18em;
  margin-top: 10px;
  line-height: 1.4;
  text-transform: uppercase;
}

/* ─── 横图区：2 列，4:3 ─── */
.section-landscape {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 44px 36px;
}

.section-landscape figure img {
  aspect-ratio: 4 / 3;
}

/* ─── 竖图区：2 列，3:4 ─── */
.section-portrait {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 56px 36px;
}

.section-portrait figure img {
  aspect-ratio: 3 / 4;
}

/* ─── Responsive: tablet (≤900px) ─── */
@media (max-width: 1000px) {
  header {
    padding: 40px 36px 32px;
  }

  .header-left h1 {
    font-size: 40px;
  }

  .header-left .tagline {
    font-size: 10px;
    margin-top: 8px;
  }

  .header-right {
    gap: 20px;
    padding-top: 8px;
  }

  main {
    padding: 0 36px 64px;
  }

  .section-landscape {
    gap: 32px 24px;
  }

  .section-portrait {
    gap: 40px 24px;
  }

  section + section {
    margin-top: 60px;
  }

}

/* ─── Responsive: mobile (≤540px) → 1 列 ─── */
@media (max-width: 540px) {
  header {
    flex-direction: column;
    gap: 18px;
    padding: 28px 22px 24px;
  }

  .header-left h1 {
    font-size: 34px;
  }

  .header-left .tagline {
    font-size: 10px;
    margin-top: 7px;
  }

  .header-right {
    padding-top: 0;
    gap: 20px;
  }

  main {
    padding: 0 22px 56px;
  }

  .section-landscape {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .section-portrait {
    grid-template-columns: 1fr;
    gap: 36px;
  }

  section + section {
    margin-top: 48px;
  }

}