.page-rankings-rules {
  --rr-rule-rail: 92px;
  background: var(--color-surface);
  color: var(--color-ink);
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: var(--leading-body);
}

/* ---------- 吸顶返回带 ---------- */
.page-rankings-rules .rr-returnbar {
  position: sticky;
  top: 0;
  z-index: 40;
  background: var(--color-contrast-surface);
  border-bottom: var(--border-thin) solid var(--color-contrast-line);
}
.page-rankings-rules .rr-returnbar__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-1) var(--space-3);
  padding-block: var(--space-2);
}
.page-rankings-rules .rr-returnbar__link {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  letter-spacing: 0.04em;
  color: var(--color-contrast-ink);
  text-decoration: none;
  border-bottom: var(--border-thick) solid var(--color-contrast-accent);
  padding-bottom: 2px;
}
.page-rankings-rules .rr-returnbar__link:hover,
.page-rankings-rules .rr-returnbar__link:focus-visible {
  color: var(--color-contrast-accent);
}
.page-rankings-rules .rr-returnbar__note {
  font-size: var(--text-xs);
  color: var(--color-contrast-ink);
  opacity: 0.66;
  letter-spacing: 0.06em;
}

/* ---------- 首屏 ---------- */
.page-rankings-rules .rr-hero {
  background: var(--color-contrast-surface);
  background-image: repeating-linear-gradient(
    90deg,
    transparent 0,
    transparent 79px,
    color-mix(in srgb, var(--color-contrast-line) 46%, transparent) 79px,
    color-mix(in srgb, var(--color-contrast-line) 46%, transparent) 80px
  );
  color: var(--color-contrast-ink);
  padding-block: var(--space-6) var(--section-y);
  border-bottom: var(--border-thick) solid var(--color-primary);
}
.page-rankings-rules .rr-hero__inner {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}
.page-rankings-rules .rr-crumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-1);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-contrast-ink);
  opacity: 0.7;
}
.page-rankings-rules .rr-crumbs a {
  color: inherit;
  text-decoration: none;
}
.page-rankings-rules .rr-crumbs a:hover,
.page-rankings-rules .rr-crumbs a:focus-visible {
  color: var(--color-contrast-accent);
}
.page-rankings-rules .rr-hero__eyebrow {
  color: var(--color-contrast-accent);
  margin: 0;
}
.page-rankings-rules .rr-hero__title {
  margin: 0;
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: var(--text-3xl);
  line-height: 1.08;
  letter-spacing: var(--tracking-heading);
  color: var(--color-contrast-ink);
  max-width: 18ch;
}
.page-rankings-rules .rr-hero__num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  color: var(--color-contrast-accent);
  font-size: 1.08em;
}
.page-rankings-rules .rr-hero__lede {
  margin: 0;
  max-width: var(--measure);
  color: var(--color-contrast-ink);
  opacity: 0.88;
  font-size: var(--text-lg);
  line-height: var(--leading-body);
}

/* ---------- 排序示意 ---------- */
.page-rankings-rules .rr-sort {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-4);
}
.page-rankings-rules .rr-sort__graph {
  border: var(--border-thin) solid var(--color-line);
  background: var(--color-surface-alt);
  padding: var(--space-3) var(--space-3) var(--space-1);
}
.page-rankings-rules .rr-ruler {
  display: block;
  width: 100%;
  height: auto;
  max-width: 460px;
  margin-inline: auto;
}
.page-rankings-rules .rr-ruler__axis {
  stroke: var(--color-ink-muted);
  stroke-width: 1;
}
.page-rankings-rules .rr-ruler__ticks line {
  stroke: var(--color-line);
  stroke-width: 1;
}
.page-rankings-rules .rr-ruler__lead {
  stroke: var(--color-line);
  stroke-width: 1;
  stroke-dasharray: 3 4;
}
.page-rankings-rules .rr-ruler__dot {
  fill: var(--color-surface);
  stroke: var(--color-ink-muted);
  stroke-width: 2;
  transition: fill 160ms ease, stroke 160ms ease, r 160ms ease;
}
.page-rankings-rules .rr-ruler__idx {
  font-family: var(--font-mono);
  font-size: 15px;
  fill: var(--color-ink-muted);
}
.page-rankings-rules .rr-ruler__key {
  font-family: var(--font-heading);
  font-size: 27px;
  font-weight: var(--weight-heading);
  fill: var(--color-ink);
}
.page-rankings-rules .rr-ruler__sub {
  font-family: var(--font-body);
  font-size: 13px;
  fill: var(--color-ink-soft);
}
.page-rankings-rules .rr-ruler__step--1 .rr-ruler__dot { stroke: var(--color-primary); fill: var(--color-primary-soft); }
.page-rankings-rules .rr-ruler__step--2 .rr-ruler__dot { stroke: var(--color-accent); fill: var(--color-highlight); }
.page-rankings-rules .rr-ruler__step:hover .rr-ruler__dot,
.page-rankings-rules .rr-ruler__step:focus-within .rr-ruler__dot {
  fill: var(--color-accent);
  stroke: var(--color-accent);
  r: 13;
}
.page-rankings-rules .rr-ruler__step:hover .rr-ruler__key {
  fill: var(--color-accent);
}
.page-rankings-rules .rr-sort__cap {
  margin: var(--space-2) 0 var(--space-2);
  font-size: var(--text-xs);
  color: var(--color-ink-muted);
  letter-spacing: 0.06em;
}
.page-rankings-rules .rr-sort__copy {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}
.page-rankings-rules .rr-sort__title {
  margin: 0;
  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-ink);
  border-left: var(--border-thick) solid var(--color-primary);
  padding-left: var(--space-2);
}
.page-rankings-rules .rr-sort__points {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}
.page-rankings-rules .rr-sort__points li {
  border-top: var(--border-thin) solid var(--color-line);
  padding-top: var(--space-1);
  color: var(--color-ink-soft);
}
.page-rankings-rules .rr-sort__points .mono {
  display: inline-block;
  min-width: 4.6em;
  color: var(--color-accent);
  font-size: var(--text-sm);
  letter-spacing: 0.04em;
}
.page-rankings-rules .rr-sort__photo {
  margin: 0;
}

/* ---------- 通用小节标题 ---------- */
.page-rankings-rules .rr-section-title {
  margin: 0 0 var(--space-2);
  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-ink);
}
.page-rankings-rules .rr-section-lede {
  margin: 0 0 var(--space-6);
  max-width: var(--measure);
  color: var(--color-ink-soft);
  font-size: var(--text-base);
}
.page-rankings-rules .section--deep .rr-section-title,
.page-rankings-rules .section--deep .rr-section-lede {
  color: var(--color-contrast-ink);
}

/* ---------- 两组口径 ---------- */
.page-rankings-rules .rr-scope__panel {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  background: var(--color-surface);
  padding: var(--space-4);
}
.page-rankings-rules .rr-scope__panel--b {
  background: var(--color-surface-deep);
}
.page-rankings-rules .rr-scope__idx {
  margin: 0;
  font-size: var(--text-xs);
  letter-spacing: 0.14em;
  color: var(--color-ink-muted);
}
.page-rankings-rules .rr-scope__panel--a .rr-scope__idx { color: var(--color-primary); }
.page-rankings-rules .rr-scope__panel--b .rr-scope__idx { color: var(--color-accent); }
.page-rankings-rules .rr-scope__panel .panel__title {
  margin: 0;
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: var(--text-xl);
  line-height: var(--leading-heading);
  color: var(--color-ink);
}
.page-rankings-rules .rr-scope__panel > p {
  margin: 0;
  color: var(--color-ink-soft);
}
.page-rankings-rules .rr-scope__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}
.page-rankings-rules .rr-scope__list li {
  position: relative;
  padding-left: var(--space-3);
  font-size: var(--text-sm);
  color: var(--color-ink);
  line-height: 1.5;
}
.page-rankings-rules .rr-scope__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 9px;
  height: 2px;
  background: var(--color-primary);
}
.page-rankings-rules .rr-scope__panel--b .rr-scope__list li::before {
  background: var(--color-accent);
}

/* ---------- 六条判定 ---------- */
.page-rankings-rules .rr-rules {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}
.page-rankings-rules .rr-rules--cont {
  margin-top: var(--space-6);
}
.page-rankings-rules .rr-rule {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-2);
  border-top: var(--border-thin) solid var(--color-line);
  padding-top: var(--space-3);
}
.page-rankings-rules .rr-rule__idx {
  font-size: var(--text-3xl);
  line-height: 1;
  font-variant-numeric: tabular-nums;
  color: var(--color-surface-deep);
  letter-spacing: -0.02em;
  align-self: start;
}
.page-rankings-rules .rr-rule:nth-child(odd) .rr-rule__idx {
  color: var(--color-primary-soft);
}
.page-rankings-rules .rr-rule__body {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  max-width: var(--measure);
}
.page-rankings-rules .rr-rule__title {
  margin: 0;
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: var(--text-xl);
  line-height: var(--leading-heading);
  color: var(--color-ink);
}
.page-rankings-rules .rr-rule__body > p {
  margin: 0;
  color: var(--color-ink-soft);
}
.page-rankings-rules .rr-rule__more {
  border-left: var(--border-thick) solid var(--color-accent);
  padding-left: var(--space-2);
}
.page-rankings-rules .rr-rule__trigger {
  appearance: none;
  background: transparent;
  border: 0;
  padding: 0;
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  letter-spacing: 0.04em;
  color: var(--color-accent);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.page-rankings-rules .rr-rule__trigger::before {
  content: "＋ ";
}
.page-rankings-rules .rr-rule__trigger[aria-expanded="true"]::before {
  content: "－ ";
}
.page-rankings-rules .rr-rule__trigger:hover,
.page-rankings-rules .rr-rule__trigger:focus-visible {
  color: var(--color-focus);
}
.page-rankings-rules .rr-rule__panel {
  margin-top: var(--space-2);
  background: var(--color-surface-alt);
  border: var(--border-thin) solid var(--color-line);
  padding: var(--space-2) var(--space-3);
}
.page-rankings-rules .rr-rule__panel p {
  margin: 0;
  font-size: var(--text-sm);
  color: var(--color-ink);
  line-height: 1.6;
}
.page-rankings-rules .rr-judge__photo {
  margin: var(--space-6) 0 0;
}
.page-rankings-rules .rr-judge__photo .media__caption {
  font-family: var(--font-mono);
}

/* ---------- 边缘情况 ---------- */
.page-rankings-rules .rr-edge__list {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-2);
}
.page-rankings-rules .rr-edge__item {
  background: var(--color-surface);
  border-left: var(--border-thick) solid var(--color-primary);
  padding: var(--space-3);
}
.page-rankings-rules .rr-edge__item:nth-child(2) {
  border-left-color: var(--color-accent);
}
.page-rankings-rules .rr-edge__item:nth-child(3) {
  border-left-color: var(--color-ink-muted);
}
.page-rankings-rules .rr-edge__no {
  margin: 0 0 var(--space-1);
  font-size: var(--text-xs);
  letter-spacing: 0.14em;
  color: var(--color-ink-muted);
}
.page-rankings-rules .rr-edge__title {
  margin: 0 0 var(--space-1);
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: var(--text-lg);
  line-height: var(--leading-heading);
  color: var(--color-ink);
}
.page-rankings-rules .rr-edge__item p:last-child {
  margin: 0;
  font-size: var(--text-sm);
  line-height: 1.7;
  color: var(--color-ink-soft);
}
.page-rankings-rules .rr-edge__item:nth-child(2) p:last-child {
  text-decoration: underline;
  text-decoration-color: var(--color-accent);
  text-decoration-thickness: 2px;
  text-underline-offset: 4px;
}

/* ---------- 与记分牌的差别 ---------- */
.page-rankings-rules .rr-compare__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-6);
}
.page-rankings-rules .rr-compare__copy > p {
  margin: 0 0 var(--space-3);
  max-width: var(--measure);
  color: var(--color-ink-soft);
}
.page-rankings-rules .rr-compare__dl {
  margin: 0 0 var(--space-3);
  border-top: var(--border-thin) solid var(--color-line);
}
.page-rankings-rules .rr-compare__row {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-1);
  padding: var(--space-2) 0;
  border-bottom: var(--border-thin) solid var(--color-line);
}
.page-rankings-rules .rr-compare__row dt {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  letter-spacing: 0.03em;
  color: var(--color-ink);
}
.page-rankings-rules .rr-compare__row dd {
  margin: 0;
  font-size: var(--text-sm);
  color: var(--color-ink-soft);
  line-height: 1.6;
}
.page-rankings-rules .rr-compare__note {
  margin: 0;
  padding-left: var(--space-3);
  border-left: var(--border-thick) solid var(--color-accent);
  font-size: var(--text-sm);
  color: var(--color-ink);
}
.page-rankings-rules .rr-compare__photo {
  margin: 0;
}

/* ---------- 出口 ---------- */
.page-rankings-rules .rr-out__inner {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}
.page-rankings-rules .rr-out__title {
  margin: 0;
  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: 20ch;
}
.page-rankings-rules .rr-out__lede {
  margin: 0;
  max-width: var(--measure);
  color: var(--color-contrast-ink);
  opacity: 0.86;
}
.page-rankings-rules .rr-out__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}
.page-rankings-rules .rr-out__btn--ghost {
  color: var(--color-contrast-ink);
  border-color: var(--color-contrast-line);
}
.page-rankings-rules .rr-out__btn--ghost:hover,
.page-rankings-rules .rr-out__btn--ghost:focus-visible {
  color: var(--color-contrast-accent);
  border-color: var(--color-contrast-accent);
}
.page-rankings-rules .rr-out__contact {
  margin: 0;
  font-size: var(--text-sm);
  color: var(--color-contrast-ink);
  opacity: 0.78;
}
.page-rankings-rules .rr-out__contact a {
  color: var(--color-contrast-accent);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 图片兜底 ---------- */
.page-rankings-rules .media img {
  max-width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-rankings-rules .rr-hero__title {
    font-size: var(--text-4xl);
  }
  .page-rankings-rules .rr-rule {
    grid-template-columns: var(--rr-rule-rail) minmax(0, 1fr);
    gap: var(--space-3);
  }
  .page-rankings-rules .rr-rule__idx {
    font-size: var(--text-4xl);
  }
  .page-rankings-rules .rr-edge__list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .page-rankings-rules .rr-compare__row {
    grid-template-columns: minmax(0, 12ch) minmax(0, 1fr);
    gap: var(--space-3);
    align-items: baseline;
  }
}

@media (min-width: 860px) {
  .page-rankings-rules .rr-sort {
    grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
    grid-template-areas:
      "graph copy"
      "photo copy";
    gap: var(--space-4) var(--space-6);
    align-items: start;
  }
  .page-rankings-rules .rr-sort__graph { grid-area: graph; }
  .page-rankings-rules .rr-sort__copy { grid-area: copy; }
  .page-rankings-rules .rr-sort__photo {
    grid-area: photo;
    position: relative;
    z-index: 2;
    margin-top: calc(var(--space-8) * -1);
    margin-right: calc(var(--space-4) * -1);
  }
  .page-rankings-rules .rr-compare__inner {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
    gap: var(--space-8);
  }
  .page-rankings-rules .rr-compare__photo {
    margin-top: var(--space-6);
    margin-left: calc(var(--space-6) * -1);
  }
  .page-rankings-rules .rr-judge__photo {
    width: 58%;
    margin-left: auto;
    margin-right: calc(var(--space-8) * -1);
  }
  .page-rankings-rules .rr-section-lede {
    font-size: var(--text-lg);
  }
}

@media (min-width: 1100px) {
  .page-rankings-rules .rr-hero {
    padding-block: var(--space-8) var(--section-y-lg);
  }
  .page-rankings-rules .rr-hero__title {
    max-width: 22ch;
  }
  .page-rankings-rules .rr-sort__title {
    font-size: var(--text-3xl);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-rankings-rules .rr-ruler__dot {
    transition: none;
  }
}