.page-insights {
  --y-index-w: 250px;
  --y-rule-soft: var(--color-line);
  --y-ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

/* ---------- 通用文字 ---------- */
.page-insights .y-h2 {
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: var(--text-xl);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink);
  margin: 0 0 var(--space-3);
}

.page-insights .y-h3 {
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: var(--text-lg);
  line-height: var(--leading-heading);
  color: var(--color-ink);
  margin: 0 0 var(--space-1);
}

.page-insights .prose {
  max-width: var(--measure);
  color: var(--color-ink);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  margin: 0 0 var(--space-3);
}

.page-insights .prose a {
  color: var(--color-primary);
  text-decoration: none;
  border-bottom: 1px dashed var(--color-primary);
}

.page-insights .prose a:hover {
  color: var(--color-primary-ink);
  background: var(--color-primary-soft);
}

.page-insights a:focus-visible,
.page-insights summary:focus-visible,
.page-insights [tabindex]:focus-visible {
  outline: 2px solid var(--color-focus);
  outline-offset: 2px;
}

/* ---------- 首屏 ---------- */
.page-insights .y-hero {
  border-bottom: var(--border-thin) solid var(--y-rule-soft);
}

.page-insights .y-hero__band {
  overflow: hidden;
  border-bottom: var(--border-thin) solid var(--y-rule-soft);
}

.page-insights .y-hero__img {
  display: block;
  width: 100%;
  height: 168px;
  object-fit: cover;
  object-position: center;
}

.page-insights .y-hero__meta {
  background: var(--color-surface-alt);
  border-bottom: 1px dashed var(--y-rule-soft);
}

.page-insights .y-hero__meta-inner {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1) var(--space-3);
  padding-block: var(--space-2);
  font-size: var(--text-xs);
  letter-spacing: 0.16em;
  color: var(--color-ink-soft);
  font-family: var(--font-mono);
}

.page-insights .y-hero__inner {
  display: grid;
  gap: var(--space-6);
  padding-block: var(--space-6) var(--space-4);
}

.page-insights .y-hero__title {
  font-family: var(--font-heading);
  font-size: var(--text-display);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink);
  margin: var(--space-2) 0 var(--space-3);
}

.page-insights .y-hero__lede {
  max-width: 46ch;
  margin: 0;
}

.page-insights .y-hero__figures {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: var(--space-1);
}

.page-insights .y-figure {
  display: grid;
  grid-template-columns: auto 1fr;
  grid-template-areas:
    "label label"
    "value unit";
  align-items: baseline;
  gap: 2px var(--space-2);
  padding: var(--space-2);
  background: var(--color-surface-deep);
  border: var(--border-thin) solid var(--y-rule-soft);
  border-left: 2px solid var(--color-primary);
  border-radius: var(--radius-md);
  text-decoration: none;
  box-shadow: var(--shadow-1);
  transition: border-color 160ms var(--y-ease), background 160ms var(--y-ease);
}

.page-insights .y-figure:hover {
  border-color: var(--color-primary);
  background: var(--color-surface-alt);
}

.page-insights .y-figure__label {
  grid-area: label;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.18em;
  color: var(--color-ink-soft);
}

.page-insights .y-figure__value {
  grid-area: value;
  font-family: var(--font-mono);
  font-size: var(--text-3xl);
  line-height: 1;
  letter-spacing: 0.04em;
  color: var(--color-ink);
}

.page-insights .y-figure__unit {
  grid-area: unit;
  font-size: var(--text-sm);
  color: var(--color-ink-muted);
}

.page-insights .y-hero__foot {
  padding-bottom: var(--space-6);
}

.page-insights .y-scale {
  display: none;
}

.page-insights .y-tags {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-1) var(--space-2);
  border-top: 1px dashed var(--y-rule-soft);
  padding-top: var(--space-2);
}

.page-insights .y-tags li {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.14em;
  color: var(--color-ink-muted);
}

/* ---------- 目录 + 正文双栏 ---------- */
.page-insights .y-shell {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
  padding-block: var(--section-y);
}

.page-insights .y-index__title {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.24em;
  color: var(--color-ink-muted);
  margin: 0 0 var(--space-2);
  padding-bottom: var(--space-1);
  border-bottom: 1px dashed var(--y-rule-soft);
}

.page-insights .toc {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding-left: var(--space-1);
  border-left: 1px dashed var(--y-rule-soft);
}

.page-insights .toc__link {
  display: block;
  padding: 6px var(--space-1) 6px var(--space-2);
  border-left: 2px solid transparent;
  color: var(--color-ink-soft);
  font-size: var(--text-sm);
  line-height: 1.5;
  text-decoration: none;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  transition: color 140ms var(--y-ease), background 140ms var(--y-ease), border-color 140ms var(--y-ease);
}

.page-insights .toc__link:hover {
  color: var(--color-ink);
  background: var(--color-surface-alt);
  border-left-color: var(--color-line);
}

.page-insights .toc__link[aria-current="true"] {
  color: var(--color-primary-ink);
  background: var(--color-primary-soft);
  border-left-color: var(--color-primary);
}

.page-insights .y-index__figure {
  margin: var(--space-4) 0 0;
  border: var(--border-thin) solid var(--y-rule-soft);
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--color-surface-alt);
}

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

.page-insights .y-index__figure figcaption {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.1em;
  color: var(--color-ink-muted);
  padding: var(--space-1) var(--space-2);
  border-top: 1px dashed var(--y-rule-soft);
}

/* ---------- 正文区块 ---------- */
.page-insights .y-doc > * + * {
  margin-top: var(--section-y);
}

.page-insights .y-tablewrap {
  overflow-x: auto;
  border: var(--border-thin) solid var(--y-rule-soft);
  border-radius: var(--radius-md);
}

.page-insights .y-table {
  min-width: 620px;
  width: 100%;
}

/* ---------- 批次 ---------- */
.page-insights .y-batch {
  padding-top: var(--space-4);
  border-top: 1px dashed var(--y-rule-soft);
}

.page-insights .y-batch__head {
  margin-bottom: var(--space-3);
}

.page-insights .y-batch__tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.2em;
  color: var(--color-primary-ink);
  background: var(--color-primary-soft);
  border: var(--border-thin) solid var(--color-primary);
  border-radius: var(--radius-sm);
  padding: 3px var(--space-1);
  margin-bottom: var(--space-2);
}

.page-insights .y-batch__range {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.18em;
  color: var(--color-ink-muted);
  margin: var(--space-1) 0 0;
}

/* 要点框 */
.page-insights .y-note {
  position: relative;
  margin-top: var(--space-3);
  padding: var(--space-2) var(--space-3);
  border-left: 3px solid var(--color-primary);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  background: linear-gradient(90deg, var(--color-primary-soft) 0%, transparent 78%);
  transition: background 180ms var(--y-ease);
}

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

.page-insights .y-note:hover,
.page-insights .y-note:focus-within {
  background: linear-gradient(90deg, var(--color-surface-deep) 0%, transparent 88%);
}

.page-insights .y-ref {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.14em;
  color: var(--color-accent);
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  transition: max-height 180ms var(--y-ease), opacity 180ms var(--y-ease), margin 180ms var(--y-ease);
}

.page-insights .y-note:hover .y-ref,
.page-insights .y-note:focus-within .y-ref {
  max-height: 48px;
  opacity: 1;
  margin-top: var(--space-1);
}

/* ---------- 浅色停顿区 ---------- */
.page-insights .y-pause {
  background: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
  border: var(--border-thin) solid var(--color-contrast-line);
  border-radius: var(--radius-lg);
  padding: var(--space-4) var(--space-3);
  box-shadow: var(--shadow-1);
}

.page-insights .y-pause .y-h2 {
  color: var(--color-contrast-ink);
  font-size: var(--text-lg);
}

.page-insights .y-pause > p {
  max-width: var(--measure);
  margin: 0 0 var(--space-3);
  color: var(--color-contrast-ink);
  line-height: var(--leading-body);
}

.page-insights .y-pause__list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-insights .y-pause__list li {
  padding: var(--space-2) 0;
  border-top: 1px dashed var(--color-contrast-line);
  color: var(--color-contrast-ink);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  max-width: var(--measure);
}

.page-insights .y-pause__list strong {
  color: var(--color-contrast-accent);
  font-weight: var(--weight-heading);
  margin-right: var(--space-1);
}

/* ---------- 长文条目 ---------- */
.page-insights .y-list {
  display: grid;
  gap: var(--space-2);
}

.page-insights .y-entry {
  background: var(--color-surface);
  border: var(--border-thin) solid var(--y-rule-soft);
  border-left: 2px solid var(--color-primary);
  border-radius: var(--radius-md);
  transition: background 180ms var(--y-ease), box-shadow 180ms var(--y-ease);
}

.page-insights .y-entry:hover {
  background: var(--color-surface-alt);
  box-shadow: inset 2px 0 0 0 var(--color-primary);
}

.page-insights .y-entry[open] {
  background: var(--color-surface-alt);
  border-color: var(--color-primary);
}

.page-insights .y-entry__head {
  position: relative;
  display: grid;
  gap: 6px var(--space-2);
  grid-template-columns: auto minmax(0, 1fr);
  grid-template-areas:
    "id name"
    "meta status";
  align-items: center;
  padding: var(--space-2) var(--space-3);
  cursor: pointer;
  list-style: none;
}

.page-insights .y-entry__head::-webkit-details-marker {
  display: none;
}

.page-insights .y-entry__id {
  grid-area: id;
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  letter-spacing: 0.12em;
  color: var(--color-primary);
}

.page-insights .y-entry__name {
  grid-area: name;
  font-family: var(--font-heading);
  font-size: var(--text-base);
  line-height: 1.4;
  color: var(--color-ink);
}

.page-insights .y-entry__meta {
  grid-area: meta;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.12em;
  color: var(--color-ink-muted);
}

.page-insights .y-entry__head .status {
  grid-area: status;
  justify-self: start;
}

.page-insights .y-entry__mark {
  position: absolute;
  top: var(--space-2);
  right: var(--space-3);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--color-ink-muted);
}

.page-insights .y-entry__mark::before {
  content: "＋";
}

.page-insights .y-entry[open] .y-entry__mark::before {
  content: "－";
}

.page-insights .y-entry__body {
  padding: 0 var(--space-3) var(--space-3);
  border-top: 1px dashed var(--y-rule-soft);
  margin-top: var(--space-1);
  padding-top: var(--space-2);
}

.page-insights .y-entry__body .prose {
  font-size: var(--text-sm);
}

.page-insights .y-fields {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-1) var(--space-3);
  margin: var(--space-3) 0 0;
}

.page-insights .y-fields > div {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2px;
  padding: var(--space-1) 0;
  border-top: 1px dashed var(--y-rule-soft);
}

.page-insights .y-fields dt {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.12em;
  color: var(--color-ink-muted);
}

.page-insights .y-fields dd {
  margin: 0;
  font-size: var(--text-sm);
  color: var(--color-ink);
}

.page-insights .y-fields a {
  color: var(--color-primary);
  text-decoration: none;
  border-bottom: 1px dashed var(--color-primary);
}

/* ---------- 体例 ---------- */
.page-insights .y-split {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
  margin-top: var(--space-4);
}

.page-insights .y-parts {
  list-style: none;
  margin: 0;
  padding: 0;
  counter-reset: none;
}

.page-insights .y-parts__item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: var(--space-2);
  padding: var(--space-3) 0;
  border-top: 1px dashed var(--y-rule-soft);
  transition: background 160ms var(--y-ease);
}

.page-insights .y-parts__item:last-child {
  border-bottom: 1px dashed var(--y-rule-soft);
}

.page-insights .y-parts__no {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  letter-spacing: 0.14em;
  color: var(--color-primary);
  padding-top: 4px;
}

.page-insights .y-parts__item p {
  margin: 0;
  font-size: var(--text-sm);
  line-height: var(--leading-body);
  color: var(--color-ink);
  max-width: var(--measure);
}

.page-insights .y-shot {
  margin: 0;
  border: var(--border-thin) solid var(--y-rule-soft);
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--color-surface-alt);
  box-shadow: var(--shadow-1);
}

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

.page-insights .y-shot figcaption {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.1em;
  color: var(--color-ink-muted);
  padding: var(--space-1) var(--space-2);
  border-top: 1px dashed var(--y-rule-soft);
}

/* ---------- 引用与跳转 ---------- */
.page-insights .y-jumps {
  list-style: none;
  margin: var(--space-4) 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-1);
}

.page-insights .y-jumps li {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-2);
  border: var(--border-thin) solid var(--y-rule-soft);
  border-radius: var(--radius-md);
  background: var(--color-surface-alt);
}

.page-insights .y-jumps a {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.14em;
  color: var(--color-ink-soft);
  text-decoration: none;
  border-bottom: 1px dashed transparent;
  transition: color 140ms var(--y-ease), border-color 140ms var(--y-ease);
}

.page-insights .y-jumps a:hover {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
}

.page-insights .y-jumps__sep {
  flex: 1 1 24px;
  min-width: 24px;
  height: 0;
  border-top: 1px dashed var(--y-rule-soft);
}

.page-insights .y-shot--wide {
  margin-top: var(--space-4);
}

/* ---------- 响应式 ---------- */
@media (min-width: 620px) {
  .page-insights .y-hero__img {
    height: 240px;
  }

  .page-insights .y-tags {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-insights .y-fields {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-insights .y-fields > div {
    grid-template-columns: 108px minmax(0, 1fr);
    align-items: baseline;
    gap: var(--space-1);
  }
}

@media (min-width: 880px) {
  .page-insights .y-hero__img {
    height: clamp(260px, 26vw, 340px);
  }

  .page-insights .y-hero__inner {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: var(--space-8);
    align-items: end;
    padding-block: var(--space-8) var(--space-6);
  }

  .page-insights .y-hero__lede {
    font-size: var(--text-lg);
  }

  .page-insights .y-hero__figures {
    gap: var(--space-1);
  }

  .page-insights .y-scale {
    display: flex;
    gap: 6px;
    align-items: flex-end;
    height: 12px;
    margin-bottom: 6px;
  }

  .page-insights .y-scale span {
    position: relative;
    flex: 1 1 0;
    height: 0;
    border-top: 1px solid var(--y-rule-soft);
  }

  .page-insights .y-scale span::after {
    content: "";
    position: absolute;
    left: 0;
    top: 0;
    width: 1px;
    height: 7px;
    background: var(--color-primary);
  }

  .page-insights .y-scale span:nth-child(1) { flex-grow: 11; }
  .page-insights .y-scale span:nth-child(2) { flex-grow: 13; }
  .page-insights .y-scale span:nth-child(3) { flex-grow: 7; }
  .page-insights .y-scale span:nth-child(4) { flex-grow: 6; }

  .page-insights .y-tags {
    margin-top: var(--space-1);
    border-top: none;
    padding-top: 0;
  }

  .page-insights .y-tags li:nth-child(1) { flex-grow: 11; }
  .page-insights .y-tags li:nth-child(2) { flex-grow: 13; }
  .page-insights .y-tags li:nth-child(3) { flex-grow: 7; }
  .page-insights .y-tags li:nth-child(4) { flex-grow: 6; }

  .page-insights .y-tags {
    display: flex;
    gap: 6px;
  }

  .page-insights .y-tags li {
    flex-basis: 0;
  }

  .page-insights .y-h2 {
    font-size: var(--text-2xl);
  }

  .page-insights .y-shell {
    grid-template-columns: var(--y-index-w) minmax(0, 1fr);
    gap: var(--space-8);
    padding-block: var(--section-y-lg);
    align-items: start;
  }

  .page-insights .y-index__inner {
    position: sticky;
    top: 96px;
  }

  .page-insights .y-entry__head {
    grid-template-columns: 78px minmax(0, 1fr) auto auto;
    grid-template-areas: "id name meta status";
    padding-right: var(--space-8);
  }

  .page-insights .y-entry__head .status {
    justify-self: end;
  }

  .page-insights .y-split {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
    gap: var(--space-6);
    align-items: start;
  }

  .page-insights .y-jumps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (hover: none) {
  .page-insights .y-ref {
    max-height: 48px;
    opacity: 1;
    margin-top: var(--space-1);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-insights *,
  .page-insights *::before,
  .page-insights *::after {
    transition-duration: 0ms !important;
  }
}