.page-rankings {
  --rk-tag-col: 104px;
  --rk-hard-shadow: 8px 8px 0 color-mix(in srgb, var(--color-ink) 20%, transparent);
  --rk-hard-shadow-primary: 8px 8px 0 color-mix(in srgb, var(--color-primary) 55%, transparent);
  --rk-pad-edge: var(--space-3);
}

/* ---------- 面包屑 ---------- */
.page-rankings .rk-breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) 0 0;
  font-size: var(--text-sm);
  color: var(--color-ink-muted);
}

.page-rankings .rk-breadcrumbs a {
  color: var(--color-accent);
  text-decoration: none;
  border-bottom: var(--border-thin) solid transparent;
}

.page-rankings .rk-breadcrumbs a:hover,
.page-rankings .rk-breadcrumbs a:focus-visible {
  border-bottom-color: var(--color-accent);
}

/* ---------- 首屏 ---------- */
.page-rankings .rk-hero {
  padding-block: var(--space-4) var(--space-6);
  background: var(--color-surface);
  position: relative;
  overflow: hidden;
}

.page-rankings .rk-hero::before {
  content: "";
  position: absolute;
  inset-inline-start: -12%;
  inset-block-start: 8%;
  width: 46%;
  height: 28%;
  background: var(--color-primary-soft);
  clip-path: polygon(0 0, 100% 14%, 92% 100%, 6% 78%);
  z-index: 0;
  pointer-events: none;
}

.page-rankings .rk-hero__stage {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-6);
}

.page-rankings .rk-hero__lead {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
}

.page-rankings .rk-hero__vertical {
  flex: 0 0 auto;
  writing-mode: vertical-rl;
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: var(--text-sm);
  letter-spacing: 0.34em;
  color: var(--color-primary);
  border-inline-start: var(--border-thick) solid var(--color-primary);
  padding-inline-start: var(--space-2);
  padding-block: var(--space-1);
  line-height: 1;
}

.page-rankings .rk-hero__copy {
  min-width: 0;
}

.page-rankings .rk-hero__title {
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: var(--text-display);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-contrast-surface);
  margin: 0;
  max-width: 11ch;
}

.page-rankings .rk-hero__dek {
  margin: var(--space-3) 0 0;
  max-width: 40ch;
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.page-rankings .rk-hero__media {
  display: grid;
  gap: var(--space-4);
  align-content: start;
}

.page-rankings .rk-hero__frame {
  position: relative;
  overflow: hidden;
}

.page-rankings .rk-hero__frame::after {
  content: "";
  position: absolute;
  inset-inline-start: 0;
  inset-block-end: 0;
  width: 38%;
  height: 12px;
  background: var(--color-primary);
}

.page-rankings .rk-hero__figures {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  gap: var(--space-4) var(--space-6);
}

.page-rankings .rk-figure {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  min-width: 0;
}

.page-rankings .rk-figure--drop {
  padding-block-end: var(--space-4);
}

.page-rankings .rk-figure__num {
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: var(--text-figure);
  line-height: 0.92;
  color: var(--color-primary);
  letter-spacing: -0.02em;
}

.page-rankings .rk-figure--drop .rk-figure__num {
  color: var(--color-accent);
}

.page-rankings .rk-figure__label {
  font-size: var(--text-sm);
  color: var(--color-ink-muted);
  letter-spacing: 0.08em;
}

/* ---------- 分类轨道 ---------- */
.page-rankings .rk-track {
  position: sticky;
  inset-block-start: 0;
  z-index: 6;
  background: var(--color-surface-alt);
  border-block: var(--border-thin) solid var(--color-line);
}

.page-rankings .rk-track__inner {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding-block: var(--space-3);
  padding-inline: var(--gutter);
  overflow-x: auto;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}

.page-rankings .rk-track__inner::-webkit-scrollbar {
  display: none;
}

.page-rankings .rk-track__label {
  flex: 0 0 auto;
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: var(--text-xs);
  letter-spacing: 0.24em;
  color: var(--color-ink-muted);
  padding-inline-end: var(--space-2);
  border-inline-end: var(--border-thin) solid var(--color-line);
}

.page-rankings .rk-pill {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  padding: var(--space-1) var(--space-3);
  border: var(--border-thin) solid var(--color-primary);
  border-radius: var(--radius-pill);
  background: var(--color-surface);
  color: var(--color-primary);
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: var(--text-sm);
  letter-spacing: 0.08em;
  text-decoration: none;
  box-shadow: 4px 4px 0 color-mix(in srgb, var(--color-primary) 40%, transparent);
  transition: background-color 160ms linear, color 160ms linear, box-shadow 160ms linear, translate 160ms linear;
  scroll-margin-block-start: 96px;
}

.page-rankings .rk-pill:hover,
.page-rankings .rk-pill:focus-visible {
  background: var(--color-highlight);
  translate: 0 -2px;
}

.page-rankings .rk-pill:focus-visible {
  outline: var(--border-thin) solid var(--color-focus);
  outline-offset: 3px;
}

.page-rankings .rk-pill.is-current {
  background: var(--color-primary);
  color: var(--color-primary-ink);
  box-shadow: var(--rk-hard-shadow-primary);
}

/* ---------- 条目流抬头 ---------- */
.page-rankings .rk-stream-section {
  padding-block: var(--space-6) 0;
  background: var(--color-surface-alt);
}

.page-rankings .rk-stream-head {
  display: grid;
  gap: var(--space-2);
  padding-block-end: var(--space-4);
  border-block-end: var(--border-thick) solid var(--color-contrast-surface);
}

.page-rankings .rk-stream-head__title {
  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-contrast-surface);
  margin: 0;
}

.page-rankings .rk-stream-head__note {
  margin: 0;
  max-width: var(--measure);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

/* ---------- 条目 ---------- */
.page-rankings .rk-stream {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-rankings .rk-entry {
  padding-block: var(--space-6);
  scroll-margin-block-start: 96px;
}

.page-rankings .rk-entry:nth-child(odd) {
  background: var(--color-surface-alt);
}

.page-rankings .rk-entry:nth-child(even) {
  background: var(--color-primary-soft);
}

.page-rankings .rk-entry + .rk-entry {
  border-block-start: var(--border-thin) solid var(--color-line);
}

.page-rankings .rk-entry__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-3);
}

.page-rankings .rk-entry__tag {
  justify-self: start;
  writing-mode: vertical-rl;
  display: inline-block;
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: var(--text-sm);
  letter-spacing: 0.3em;
  line-height: 1;
  color: var(--color-primary);
  background: var(--color-surface);
  border: var(--border-thin) solid var(--color-primary);
  border-radius: var(--radius-pill);
  padding-block: var(--space-3);
  padding-inline: var(--space-1);
}

.page-rankings .rk-entry__body {
  min-width: 0;
}

.page-rankings .rk-entry__title {
  margin: 0 0 var(--space-2);
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: var(--text-lg);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-contrast-surface);
  max-width: 26ch;
}

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

.page-rankings .rk-entry__use {
  margin: 0 0 var(--space-3);
  max-width: var(--measure);
  padding-inline-start: var(--space-3);
  border-inline-start: var(--border-thick) solid var(--color-accent);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.page-rankings .rk-entry__use-label {
  display: block;
  margin-block-end: var(--space-1);
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: var(--text-xs);
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--color-accent);
}

.page-rankings .rk-entry__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2) var(--space-3);
  margin: 0;
}

.page-rankings .rk-badge {
  display: inline-flex;
  align-items: center;
  padding: var(--space-1) var(--space-2);
  background: var(--color-highlight);
  border: var(--border-thin) solid var(--color-accent);
  border-radius: var(--radius-sm);
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: var(--text-xs);
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.page-rankings .rk-entry__stage {
  font-size: var(--text-sm);
  color: var(--color-ink-muted);
  font-variant-numeric: tabular-nums;
}

.page-rankings .rk-entry__figure {
  margin: var(--space-4) 0 0;
  max-width: 640px;
}

.page-rankings .rk-entry__figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

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

.page-rankings .rk-entry__more a {
  color: var(--color-accent);
  font-weight: 700;
  text-decoration: none;
  border-block-end: var(--border-thin) solid var(--color-accent);
}

.page-rankings .rk-entry__more a:hover,
.page-rankings .rk-entry__more a:focus-visible {
  background: var(--color-highlight);
}

/* ---------- 折叠 ---------- */
.page-rankings .rk-fold {
  background: var(--color-surface-deep);
  border-block-start: var(--border-thick) solid var(--color-contrast-surface);
}

.page-rankings .rk-fold__toggle {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  width: 100%;
  padding: var(--space-4) var(--gutter);
  background: transparent;
  border: 0;
  cursor: pointer;
  text-align: start;
  color: var(--color-contrast-surface);
}

.page-rankings .rk-fold__toggle:hover {
  background: var(--color-highlight);
}

.page-rankings .rk-fold__toggle:focus-visible {
  outline: var(--border-thin) solid var(--color-focus);
  outline-offset: -4px;
}

.page-rankings .rk-fold__label {
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: var(--text-lg);
  letter-spacing: var(--tracking-heading);
}

.page-rankings .rk-fold__count {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: var(--text-sm);
  letter-spacing: 0.2em;
  color: var(--color-primary);
  border: var(--border-thin) solid var(--color-primary);
  border-radius: var(--radius-pill);
  padding: var(--space-1) var(--space-2);
}

.page-rankings .rk-fold__panel[hidden] {
  display: none;
}

.page-rankings .rk-fold__panel .rk-entry:nth-child(odd) {
  background: var(--color-surface);
}

.page-rankings .rk-fold__panel .rk-entry:nth-child(even) {
  background: var(--color-surface-alt);
}

/* ---------- 行动出口 ---------- */
.page-rankings .rk-cta {
  padding-block: var(--space-8);
  background: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
  position: relative;
  overflow: hidden;
}

.page-rankings .rk-cta::after {
  content: "";
  position: absolute;
  inset-inline-end: -6%;
  inset-block-start: -18%;
  width: 44%;
  height: 62%;
  border: var(--border-thick) solid var(--color-contrast-accent);
  border-radius: var(--radius-lg);
  opacity: 0.35;
  pointer-events: none;
}

.page-rankings .rk-cta__grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-6);
}

.page-rankings .rk-cta__eyebrow {
  margin: 0 0 var(--space-2);
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: var(--text-xs);
  letter-spacing: 0.26em;
  text-transform: uppercase;
  color: var(--color-contrast-accent);
}

.page-rankings .rk-cta__title {
  margin: 0 0 var(--space-3);
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: var(--text-2xl);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-contrast-ink);
  max-width: 18ch;
}

.page-rankings .rk-cta__text {
  margin: 0 0 var(--space-2);
  max-width: var(--measure);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: color-mix(in srgb, var(--color-contrast-ink) 82%, transparent);
}

.page-rankings .rk-cta__text--sub {
  color: color-mix(in srgb, var(--color-contrast-ink) 68%, transparent);
}

.page-rankings .rk-cta__text a {
  color: var(--color-contrast-accent);
  font-weight: 700;
  text-decoration: none;
  border-block-end: var(--border-thin) solid currentColor;
}

.page-rankings .rk-cta__aside {
  display: grid;
  gap: var(--space-4);
  align-content: start;
}

.page-rankings .rk-cta__frame {
  border: var(--border-thin) solid var(--color-contrast-line);
}

.page-rankings .rk-cta__actions {
  display: grid;
  gap: var(--space-2);
}

.page-rankings .rk-cta__actions .btn {
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  letter-spacing: 0.06em;
}

.page-rankings .rk-cta__actions .btn--ghost {
  border-color: var(--color-contrast-accent);
  color: var(--color-contrast-accent);
  background: transparent;
}

.page-rankings .rk-cta__actions .btn--ghost:hover,
.page-rankings .rk-cta__actions .btn--ghost:focus-visible {
  background: color-mix(in srgb, var(--color-contrast-accent) 18%, transparent);
}

/* ---------- 平板及以上 ---------- */
@media (min-width: 760px) {

  .page-rankings .rk-hero {
    padding-block: var(--space-6) var(--space-8);
  }

  .page-rankings .rk-entry {
    padding-block: var(--space-8);
  }

  .page-rankings .rk-entry__inner {
    grid-template-columns: var(--rk-tag-col) minmax(0, 1fr);
    gap: var(--space-6);
    align-items: start;
  }

  .page-rankings .rk-entry__body {
    padding-block-start: var(--space-2);
  }

  .page-rankings .rk-entry:nth-child(even) .rk-entry__body {
    padding-inline-start: var(--space-4);
  }

  .page-rankings .rk-entry + .rk-entry {
    border-block-start: 0;
  }

  .page-rankings .rk-entry:nth-child(odd) .rk-entry__inner {
    transform: translateX(calc(var(--space-3) * -1));
  }
}

/* ---------- 桌面 ---------- */
@media (min-width: 960px) {

  .page-rankings .rk-hero__stage {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: var(--space-8);
    align-items: start;
  }

  .page-rankings .rk-hero__figures {
    justify-content: flex-end;
  }

  .page-rankings .rk-stream-head {
    grid-template-columns: minmax(0, 5fr) minmax(0, 4fr);
    align-items: end;
    gap: var(--space-6);
    padding-block-end: var(--space-6);
  }

  .page-rankings .rk-stream-head__note {
    text-align: end;
    justify-self: end;
  }

  .page-rankings .rk-entry__title {
    font-size: var(--text-xl);
  }

  .page-rankings .rk-fold__toggle {
    padding-inline: calc(var(--gutter) + var(--space-6));
  }

  .page-rankings .rk-cta__grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 4fr);
    gap: var(--space-8);
    align-items: start;
  }

  .page-rankings .rk-cta__title {
    font-size: var(--text-2xl);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-rankings .rk-pill {
    transition: none;
  }
  .page-rankings .rk-pill:hover {
    translate: none;
  }
}