.manual-hero {
  padding-top: clamp(34px, 6vw, 76px);
}

.manual-hero-panel {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(280px, 0.65fr);
  align-items: center;
  gap: clamp(36px, 7vw, 88px);
  padding: clamp(36px, 7vw, 82px);
  border-radius: var(--radius-panel-large);
  background: var(--color-surface);
  color: var(--color-ink);
  box-shadow: var(--shadow-panel);
}

.manual-hero-copy {
  max-width: 760px;
}

.manual-hero-copy .lead {
  margin-bottom: 26px;
}

.manual-order {
  padding: 28px;
  border-radius: var(--radius-card);
  background: var(--color-surface-muted);
  color: var(--color-ink);
}

.manual-order ol {
  display: grid;
  margin: 0;
  padding: 0;
  gap: 5px;
  list-style: none;
}

.manual-order li {
  display: flex;
  min-height: 48px;
  margin: 0;
  padding: 10px 0;
  align-items: center;
  gap: 14px;
}

.manual-order li + li {
  border-top: 1px solid var(--color-line);
}

.manual-order li span {
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  flex-shrink: 0;
}

.manual-intro {
  padding-top: 0;
}

.manual-intro .panel p:last-child {
  margin-bottom: 0;
}

.manual-toc-section {
  position: sticky;
  z-index: 20;
  top: 10px;
  padding-top: 10px;
  padding-bottom: 32px;
}

.manual-toc-section .toc {
  margin-bottom: 0;
}

.manual-article {
  display: grid;
  gap: clamp(34px, 6vw, 72px);
  padding-bottom: var(--section-space);
}

.manual-chapter {
  scroll-margin-top: 96px;
  padding: clamp(34px, 6vw, 72px);
  border-radius: var(--radius-panel-large);
  background: var(--color-surface);
  color: var(--color-ink);
  box-shadow: var(--shadow-soft);
}

.manual-chapter.is-muted {
  background: var(--color-surface-muted);
}

.manual-chapter > h2 {
  scroll-margin-top: 112px;
  margin-top: 0;
}

.manual-chapter > h3 {
  padding-top: 0.2em;
}

.manual-chapter > :last-child {
  margin-bottom: 0;
}

.manual-chapter pre {
  margin-top: 24px;
  margin-bottom: 24px;
}

.manual-chapter .data-table-wrap {
  margin-top: 30px;
}

.manual-chapter.is-muted .callout:not(.is-warning):not(.is-success) {
  background: var(--color-surface);
  box-shadow: var(--shadow-soft);
}

@media (max-width: 900px) {
  .manual-hero-panel {
    grid-template-columns: 1fr;
  }

  .manual-order {
    max-width: 560px;
  }

  .manual-toc-section {
    position: relative;
    top: auto;
  }
}

@media (max-width: 640px) {
  .manual-hero-panel,
  .manual-chapter {
    padding: 26px 20px;
    border-radius: var(--radius-card);
  }

  .manual-order {
    padding: 22px 18px;
  }

  .manual-toc-section {
    padding-bottom: 22px;
  }

  .manual-article {
    gap: 28px;
  }
}