.composition-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(300px, 0.92fr);
  gap: 24px;
  align-items: center;
}

.composition-hero-copy,
.composition-hero-panel,
.composition-route-card,
.composition-step-card,
.composition-demo-grid .detail-card {
  min-width: 0;
}

.composition-hero-copy {
  display: grid;
  gap: 14px;
}

.composition-hero-copy h1,
.composition-intro h1 {
  margin: 0;
  font-family: "Times New Roman", "Microsoft YaHei", serif;
  font-size: clamp(34px, 4vw, 52px);
  line-height: 1.16;
}

.composition-hero-panel {
  padding: 22px;
  border-radius: 28px;
  border: 1px solid rgba(40, 57, 82, 0.08);
  background:
    radial-gradient(circle at top right, rgba(255, 186, 71, 0.22), transparent 32%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(247, 250, 255, 0.94));
  box-shadow: 0 18px 32px rgba(40, 57, 82, 0.08);
}

.composition-badge {
  display: inline-flex;
  align-items: center;
  min-height: 32px;
  padding: 5px 12px;
  border-radius: 999px;
  background: rgba(23, 120, 220, 0.12);
  color: #1763b6;
  font-size: 13px;
  font-weight: 700;
}

.composition-pill-grid {
  display: grid;
  gap: 10px;
  margin-top: 16px;
}

.composition-pill-grid span {
  display: block;
  padding: 12px 14px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.86);
  border: 1px solid rgba(40, 57, 82, 0.08);
  font-weight: 700;
}

.composition-note {
  margin-top: 16px;
  color: var(--muted);
}

.composition-route-grid,
.composition-steps,
.composition-demo-grid,
.composition-content-grid {
  display: grid;
  gap: 18px;
}

.composition-route-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.composition-route-card,
.composition-step-card {
  padding: 22px;
  border-radius: 24px;
  border: 1px solid rgba(40, 57, 82, 0.08);
  background:
    radial-gradient(circle at top right, rgba(23, 120, 220, 0.1), transparent 30%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(247, 250, 255, 0.94));
  box-shadow: 0 16px 28px rgba(40, 57, 82, 0.06);
  color: inherit;
  text-decoration: none;
}

.composition-route-card h3,
.composition-step-card strong {
  margin: 14px 0 10px;
}

.composition-step-card strong {
  display: block;
  font-size: 20px;
}

.composition-route-kicker {
  display: inline-flex;
  align-items: center;
  min-height: 30px;
  padding: 5px 12px;
  border-radius: 999px;
  background: rgba(255, 211, 93, 0.24);
  color: #9b6600;
  font-size: 13px;
  font-weight: 700;
}

.composition-tabs {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 18px;
}

.composition-tab {
  display: inline-flex;
  align-items: center;
  min-height: 42px;
  padding: 0 14px;
  border-radius: 999px;
  border: 1px solid rgba(40, 57, 82, 0.08);
  background: rgba(255, 255, 255, 0.88);
  color: var(--text);
  text-decoration: none;
  font-weight: 700;
}

.composition-tab.is-current {
  color: white;
  background: linear-gradient(135deg, #1778dc 0%, #4fa8ff 55%, #ff8c2d 100%);
  box-shadow: 0 14px 24px rgba(23, 120, 220, 0.2);
}

.composition-content-grid,
.composition-example-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.composition-example-grid {
  display: grid;
  gap: 18px;
}

.composition-tip-card {
  margin-top: 18px;
}

.composition-demo-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

@media (max-width: 980px) {
  .composition-hero,
  .composition-route-grid,
  .composition-steps,
  .composition-demo-grid,
  .composition-content-grid,
  .composition-example-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 760px) {
  .composition-route-card,
  .composition-step-card,
  .composition-hero-panel {
    padding: 18px;
  }

  .composition-hero-copy h1,
  .composition-intro h1 {
    font-size: clamp(28px, 9vw, 40px);
  }

  .composition-tab {
    min-height: 40px;
    padding: 0 12px;
    font-size: 13px;
  }
}