.page-rankings {
  --rank-axis: var(--color-line);
  background: var(--color-surface);
  color: var(--color-ink);
  overflow-x: clip;
}

/* ---------- 首屏 ---------- */
.page-rankings .rank-hero {
  position: relative;
  padding: var(--space-6) 0 var(--space-8);
  background: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
}

.page-rankings .rank-hero::after {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: var(--space-4);
  background: var(--color-surface);
  clip-path: polygon(0 100%, 100% 0, 100% 100%);
  pointer-events: none;
}

.page-rankings .rank-hero__crumbs {
  margin-bottom: var(--space-4);
}

.page-rankings .rank-hero .crumb {
  color: var(--color-contrast-ink);
  opacity: 0.68;
}

.page-rankings .rank-hero .crumb:hover,
.page-rankings .rank-hero .crumb:focus-visible {
  opacity: 1;
}

.page-rankings .rank-hero .crumb-sep {
  color: var(--color-contrast-line);
}

.page-rankings .rank-hero__grid {
  display: grid;
  gap: var(--space-6);
}

.page-rankings .rank-hero__kicker {
  margin: 0 0 var(--space-2);
}

.page-rankings .rank-hero h1 {
  margin: 0 0 var(--space-3);
  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-contrast-ink);
}

.page-rankings .rank-hero__lede {
  margin: 0;
  max-width: var(--measure);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-contrast-ink);
  opacity: 0.86;
}

.page-rankings .rank-figures {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-2);
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-rankings .rank-figure {
  padding-top: var(--space-1);
  border-top: var(--border-thin) solid var(--color-contrast-line);
}

.page-rankings .rank-figure__num {
  display: block;
  font-family: var(--font-heading);
  font-size: var(--text-figure);
  font-weight: var(--weight-heading);
  line-height: 1;
  color: var(--color-contrast-accent);
}

.page-rankings .rank-figure__label {
  display: block;
  margin-top: var(--space-1);
  font-size: var(--text-xs);
  line-height: 1.55;
  color: var(--color-contrast-ink);
  opacity: 0.72;
}

.page-rankings .rank-hero__media {
  margin: 0;
  transform: rotate(-0.5deg);
}

@media (min-width: 900px) {
  .page-rankings .rank-hero {
    padding: var(--space-8) 0 var(--section-y-lg);
  }

  .page-rankings .rank-hero__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    grid-template-areas:
      "copy media"
      "figures media";
    align-items: start;
    column-gap: var(--space-8);
    row-gap: var(--space-6);
  }

  .page-rankings .rank-hero__copy {
    grid-area: copy;
  }

  .page-rankings .rank-figures {
    grid-area: figures;
    align-self: end;
  }

  .page-rankings .rank-hero__media {
    grid-area: media;
  }
}

/* ---------- 主体骨架 ---------- */
.page-rankings .rank-layout {
  display: grid;
  gap: var(--space-6);
  padding-top: var(--space-8);
  padding-bottom: var(--space-8);
}

.page-rankings .rank-stream {
  min-width: 0;
}

@media (min-width: 960px) {
  .page-rankings .rank-layout {
    grid-template-columns: minmax(0, 1fr) 208px;
    column-gap: var(--space-8);
    padding-top: var(--section-y);
    padding-bottom: var(--section-y-lg);
  }

  .page-rankings .rank-stream {
    grid-column: 1;
    grid-row: 1;
  }

  .page-rankings .rank-rail {
    grid-column: 2;
    grid-row: 1;
  }
}

/* ---------- 右侧分类栏 ---------- */
.page-rankings .rank-rail {
  align-self: start;
  min-width: 0;
}

.page-rankings .rank-rail__title {
  margin: 0 0 var(--space-2);
  font-family: var(--font-heading);
  font-size: var(--text-sm);
  letter-spacing: 0.08em;
  color: var(--color-ink-muted);
}

.page-rankings .rank-rail__list {
  display: flex;
  gap: var(--space-1);
  margin: 0;
  padding: 0 0 var(--space-1);
  list-style: none;
  overflow-x: auto;
}

.page-rankings .rank-rail__link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
  min-width: 0;
  padding: var(--space-1) var(--space-2);
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-sm);
  background: var(--color-surface-alt);
  box-shadow: var(--shadow-1);
  color: var(--color-ink);
  font-size: var(--text-sm);
  text-decoration: none;
  white-space: nowrap;
  transition: transform 0.18s ease, border-color 0.18s ease;
}

.page-rankings .rank-rail__link:hover,
.page-rankings .rank-rail__link:focus-visible {
  transform: translateY(-2px);
  border-color: var(--color-focus);
}

.page-rankings .rank-rail__count {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-accent);
}

@media (min-width: 960px) {
  .page-rankings .rank-rail {
    position: sticky;
    top: var(--space-8);
  }

  .page-rankings .rank-rail__list {
    flex-direction: column;
    overflow: visible;
    padding-bottom: 0;
  }
}

/* ---------- 分组 ---------- */
.page-rankings .rank-group {
  scroll-margin-top: var(--space-8);
  padding-bottom: var(--space-8);
  border-bottom: var(--border-thin) solid var(--color-line);
}

.page-rankings .rank-group + .rank-group {
  margin-top: var(--space-8);
}

.page-rankings .rank-group:last-of-type {
  border-bottom: 0;
  padding-bottom: var(--space-6);
}

.page-rankings .rank-group__head {
  max-width: var(--measure);
}

.page-rankings .rank-group__tag {
  display: inline-block;
  margin-bottom: var(--space-2);
}

.page-rankings .rank-group__title {
  margin: 0 0 var(--space-2);
  font-family: var(--font-heading);
  font-size: var(--text-2xl);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink);
}

.page-rankings .rank-group__note {
  margin: 0;
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.page-rankings .rank-group__note a {
  color: var(--color-accent);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-rankings .rank-group__media {
  margin: var(--space-4) 0;
  max-width: 520px;
}

@media (min-width: 700px) {
  .page-rankings .rank-group__media {
    margin-left: var(--space-6);
  }
}

/* ---------- 时间轴与卡片 ---------- */
.page-rankings .rank-flow {
  display: grid;
  gap: var(--space-3);
  margin: var(--space-4) 0 0;
  padding: 0 0 0 var(--space-4);
  list-style: none;
  border-left: var(--border-thin) solid var(--rank-axis);
}

.page-rankings .flow-item {
  position: relative;
  padding: var(--space-3);
  background: var(--color-surface-alt);
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-1);
  transition: transform 0.18s ease, border-color 0.18s ease;
}

.page-rankings .flow-item::before {
  content: "";
  position: absolute;
  top: var(--space-4);
  left: calc(-1 * var(--space-4) - 5px);
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-accent);
  box-shadow: 0 0 0 2px var(--color-surface);
}

.page-rankings .flow-item:hover {
  transform: translateY(-2px);
  border-color: color-mix(in srgb, var(--color-primary) 48%, var(--color-line));
}

@media (min-width: 700px) {
  .page-rankings .flow-item:nth-child(even) {
    margin-left: var(--space-3);
  }
}

.page-rankings .flow-item__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-1);
  margin: 0 0 var(--space-2);
}

.page-rankings .flow-item__time {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-ink-muted);
}

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

.page-rankings .flow-item__text {
  margin: 0;
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.page-rankings .flow-item__impact {
  margin: var(--space-2) 0 0;
  padding: var(--space-1) 0 var(--space-1) var(--space-2);
  border-left: var(--border-thick) solid var(--color-primary);
  font-size: var(--text-sm);
  line-height: 1.7;
  color: var(--color-ink);
}

/* ---------- 行动出口 ---------- */
.page-rankings .rank-cta {
  padding: 0 0 var(--space-8);
}

.page-rankings .rank-cta__panel {
  position: relative;
  padding: var(--space-6) var(--space-4);
  background: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-2);
}

.page-rankings .rank-cta__panel::before {
  content: "";
  position: absolute;
  top: 0;
  left: var(--space-4);
  width: 64px;
  height: 4px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-contrast-accent));
}

@media (min-width: 800px) {
  .page-rankings .rank-cta__panel {
    padding: var(--space-8);
  }
}

.page-rankings .rank-cta__title {
  margin: 0 0 var(--space-2);
  font-family: var(--font-heading);
  font-size: var(--text-2xl);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  color: var(--color-contrast-ink);
}

.page-rankings .rank-cta__text {
  margin: 0 0 var(--space-4);
  max-width: var(--measure);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-contrast-ink);
  opacity: 0.85;
}

.page-rankings .rank-cta__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2) var(--space-4);
}

.page-rankings .rank-cta__link {
  color: var(--color-contrast-accent);
  font-size: var(--text-sm);
  text-decoration: underline;
  text-underline-offset: 3px;
}

@media (prefers-reduced-motion: reduce) {
  .page-rankings .flow-item,
  .page-rankings .rank-rail__link {
    transition: none;
  }

  .page-rankings .flow-item:hover,
  .page-rankings .rank-rail__link:hover {
    transform: none;
  }

  .page-rankings .rank-hero__media {
    transform: none;
  }
}