.page-insights {
  display: block;
}

/* ---------- 首屏：引言式版面 ---------- */

.page-insights .hero-insights {
  padding-top: var(--space-6);
}

.page-insights .hero-frame {
  background: var(--color-highlight);
  border-radius: var(--radius-lg);
  padding: clamp(24px, 4vw, 56px);
  box-shadow: var(--shadow-1);
}

.page-insights .hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-6);
}

.page-insights .hero-context {
  margin: 0 0 var(--space-3);
  padding-left: var(--space-2);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  color: var(--color-ink-muted);
}

.page-insights .hero-title {
  margin: 0;
  padding-left: var(--space-2);
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  letter-spacing: var(--tracking-heading);
  line-height: var(--leading-heading);
  color: var(--color-ink);
}

.page-insights .hero-lede {
  margin: var(--space-4) 0 0;
  padding-left: var(--space-2);
  max-width: var(--measure);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.page-insights .hero-aside {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.page-insights .hero-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-3);
  padding: var(--space-3) 0;
  border-top: var(--border-thin) solid color-mix(in srgb, var(--color-ink) 20%, transparent);
  border-bottom: var(--border-thin) solid color-mix(in srgb, var(--color-ink) 20%, transparent);
}

.page-insights .hero-stat {
  min-width: 0;
}

.page-insights .hero-stat-value {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--text-2xl);
  font-weight: 700;
  line-height: 1.1;
  color: var(--color-accent);
}

.page-insights .hero-stat-label {
  display: block;
  margin-top: var(--space-1);
  font-size: var(--text-xs);
  line-height: 1.5;
  color: var(--color-ink-muted);
}

.page-insights .hero-figure {
  margin: 0;
}

.page-insights .hero-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

@media (min-width: 720px) {
  .page-insights .hero-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 960px) {
  .page-insights .hero-grid {
    grid-template-columns: 7fr 5fr;
    gap: var(--space-8);
    align-items: start;
  }
}

/* ---------- 分类轨道 ---------- */

.page-insights .track-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-3);
  margin-top: var(--space-6);
}

.page-insights .track {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  padding: var(--space-3);
  background: var(--color-surface);
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-1);
}

.page-insights .track-name {
  margin: 0;
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  color: var(--color-ink);
}

.page-insights .track-name::before {
  content: "";
  display: inline-block;
  width: 8px;
  height: 8px;
  margin-right: var(--space-1);
  border-radius: var(--radius-pill);
  background: var(--color-primary);
  vertical-align: middle;
}

.page-insights .track-count {
  margin: 0;
  display: flex;
  align-items: baseline;
  gap: var(--space-1);
}

.page-insights .track-count-value {
  font-family: var(--font-mono);
  font-size: var(--text-2xl);
  font-weight: 700;
  line-height: 1.1;
  color: var(--color-primary);
}

.page-insights .track-count-unit {
  font-size: var(--text-xs);
  color: var(--color-ink-muted);
}

.page-insights .track-desc {
  margin: 0;
  font-size: var(--text-sm);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.page-insights .track-recent {
  margin: auto 0 0;
  padding-top: var(--space-2);
  border-top: var(--border-thin) solid var(--color-line);
  font-size: var(--text-xs);
  color: var(--color-ink-muted);
}

@media (min-width: 640px) {
  .page-insights .track-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1024px) {
  .page-insights .track-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

/* ---------- 条目流 ---------- */

.page-insights .entry-flow {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-4);
  margin: var(--space-6) 0 0;
  padding: 0;
  list-style: none;
  counter-reset: entry;
}

.page-insights .entry {
  counter-increment: entry;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  min-width: 0;
  padding: var(--space-4);
  background: var(--color-surface);
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-1);
}

.page-insights .entry-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
}

.page-insights .entry-num {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  color: var(--color-ink-muted);
}

.page-insights .entry-num::before {
  content: counter(entry, decimal-leading-zero);
}

.page-insights .entry-title {
  margin: 0;
  font-size: var(--text-xl);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink);
}

.page-insights .entry-abstract {
  margin: 0;
  max-width: var(--measure);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.page-insights .entry-figure {
  margin: 0;
}

.page-insights .entry-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-insights .entry-meta {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-2);
  margin: 0;
  padding-top: var(--space-2);
  border-top: var(--border-thin) solid var(--color-line);
}

.page-insights .entry-meta dt {
  font-size: var(--text-xs);
  letter-spacing: 0.04em;
  color: var(--color-ink-muted);
}

.page-insights .entry-meta dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  line-height: 1.5;
  color: var(--color-ink);
}

.page-insights .entry-link {
  align-self: flex-start;
  margin-top: var(--space-1);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-accent);
  text-decoration: none;
  border-bottom: var(--border-thin) solid color-mix(in srgb, var(--color-accent) 45%, transparent);
}

.page-insights .entry-link:hover,
.page-insights .entry-link:focus-visible {
  color: var(--color-focus);
  border-bottom-color: var(--color-focus);
}

.page-insights .entry-link:focus-visible {
  outline: 2px solid var(--color-focus);
  outline-offset: 3px;
}

.page-insights .entry.entry--quote {
  background: var(--color-primary-soft);
  border-color: transparent;
  border-left: 3px solid var(--color-primary);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  box-shadow: none;
}

.page-insights .entry.entry--quote .entry-title {
  font-size: var(--text-2xl);
  color: var(--color-ink);
}

@media (min-width: 560px) {
  .page-insights .entry-meta {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--space-2) var(--space-3);
  }
}

@media (min-width: 1000px) {
  .page-insights .entry-flow {
    grid-template-columns: repeat(12, minmax(0, 1fr));
    gap: var(--space-6) var(--space-3);
  }

  .page-insights .entry {
    grid-column: 1 / 8;
  }

  .page-insights .entry:nth-child(even) {
    grid-column: 6 / 13;
  }

  .page-insights .entry.entry--quote {
    grid-column: 1 / 13;
  }
}

/* ---------- 前瞻阅读顺序 ---------- */

.page-insights .preview-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-6);
  margin-top: var(--space-6);
}

.page-insights .preview-figure {
  margin: 0;
}

.page-insights .preview-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-insights .preview-steps {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-3);
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-insights .preview-step {
  padding: var(--space-3) var(--space-4);
  background: var(--color-surface-alt);
  border-left: 3px solid var(--color-primary);
  border-radius: var(--radius-sm);
}

.page-insights .preview-step-num {
  margin: 0 0 var(--space-1);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.1em;
  color: var(--color-primary);
}

.page-insights .preview-step-title {
  margin: 0 0 var(--space-1);
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  color: var(--color-ink);
}

.page-insights .preview-step-body {
  margin: 0;
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.page-insights .preview-note {
  margin-top: var(--space-6);
  max-width: var(--measure);
  font-size: var(--text-sm);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

@media (min-width: 720px) {
  .page-insights .preview-step:nth-child(2) {
    margin-left: var(--space-4);
  }

  .page-insights .preview-step:nth-child(3) {
    margin-left: var(--space-8);
  }
}

@media (min-width: 960px) {
  .page-insights .preview-layout {
    grid-template-columns: 5fr 7fr;
    gap: var(--space-8);
    align-items: start;
  }
}

/* ---------- 署名与校核（深色面板） ---------- */

.page-insights .credit-title {
  color: var(--color-contrast-ink);
}

.page-insights .credit-lede {
  color: color-mix(in srgb, var(--color-contrast-ink) 78%, transparent);
}

.page-insights .credit-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-3);
  margin-top: var(--space-6);
}

.page-insights .credit-panel {
  padding: var(--space-4);
  border: var(--border-thin) solid var(--color-contrast-line);
  border-radius: var(--radius-md);
  background: color-mix(in srgb, var(--color-contrast-ink) 7%, transparent);
}

.page-insights .credit-panel-title {
  margin: 0 0 var(--space-2);
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  color: var(--color-contrast-accent);
}

.page-insights .credit-panel-body {
  margin: 0;
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: color-mix(in srgb, var(--color-contrast-ink) 88%, transparent);
}

@media (min-width: 768px) {
  .page-insights .credit-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-insights .track,
  .page-insights .entry,
  .page-insights .preview-step,
  .page-insights .credit-panel {
    transition: none;
  }
}