.page-community {
  --community-rail-bg: var(--color-surface-deep);
  --community-stage-col: 92px;
  --community-rule-line: var(--color-contrast-line);
}

/* ---------- 首屏 ---------- */
.page-community .community-hero {
  padding-bottom: var(--space-6);
}

.page-community .community-title {
  margin: var(--space-3) 0 var(--space-3);
  max-width: 17ch;
  font-family: var(--font-heading);
  font-size: var(--text-display);
  font-weight: var(--weight-heading);
  line-height: 1.04;
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink);
}

.page-community .community-lede {
  max-width: var(--measure);
  color: var(--color-ink-soft);
}

.page-community .community-stats {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-3);
  margin: var(--space-6) 0 0;
  padding-top: var(--space-4);
  border-top: var(--border-thin) solid var(--color-line);
}

.page-community .community-stat {
  display: flex;
  flex-direction: column-reverse;
  gap: var(--space-1);
}

.page-community .community-stat__value {
  margin: 0;
  display: flex;
  align-items: baseline;
  gap: var(--space-1);
  font-family: var(--font-mono);
  font-size: var(--text-4xl);
  font-weight: 500;
  line-height: 1;
  color: var(--color-ink);
  font-variant-numeric: tabular-nums;
}

.page-community .community-stat__unit {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: var(--weight-body);
  color: var(--color-ink-muted);
}

.page-community .community-stat__label {
  font-size: var(--text-xs);
  letter-spacing: 0.06em;
  color: var(--color-ink-muted);
}

/* ---------- 横向索引条 ---------- */
.page-community .community-rail {
  background: var(--community-rail-bg);
  border-top: var(--border-thin) solid var(--color-line);
  border-bottom: var(--border-thin) solid var(--color-line);
}

.page-community .community-rail__inner {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding-top: var(--space-2);
  padding-bottom: var(--space-2);
}

.page-community .community-rail__title {
  flex: none;
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  color: var(--color-ink-muted);
}

.page-community .community-rail__list {
  display: flex;
  gap: var(--space-2);
  margin: 0;
  padding: 0 0 var(--space-1) 0;
  list-style: none;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
}

.page-community .community-rail__link {
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
  padding: 4px 0;
  white-space: nowrap;
  font-size: var(--text-sm);
  color: var(--color-ink);
  text-decoration: none;
  border-bottom: var(--border-thin) solid transparent;
  transition: border-color 180ms ease, color 180ms ease;
}

.page-community .community-rail__link:hover,
.page-community .community-rail__link:focus-visible {
  color: var(--color-primary);
  border-bottom-color: var(--color-accent);
}

.page-community .community-rail__no {
  font-size: var(--text-xs);
  color: var(--color-ink-muted);
}

/* ---------- 图形 ---------- */
.page-community .community-figure {
  margin: 0;
  background: var(--color-surface-alt);
}

.page-community .community-figure--wide,
.page-community .community-figure--pano {
  border-radius: 0;
}

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

.page-community .community-figure--wide img {
  aspect-ratio: 5 / 2;
}

.page-community .community-figure--pano img {
  aspect-ratio: 25 / 14;
}

.page-community .community-figure__caption {
  padding: var(--space-2) var(--space-4) var(--space-3);
  font-size: var(--text-xs);
  line-height: 1.7;
  color: var(--color-ink-muted);
  background: var(--color-surface-alt);
}

/* ---------- 阶段路径 ---------- */
.page-community .stage-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: var(--space-8);
  counter-reset: stage;
}

.page-community .stage {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-2);
  padding-top: var(--space-6);
  border-top: var(--border-thin) solid var(--color-line);
}

.page-community .stage__no {
  font-family: var(--font-mono);
  font-size: var(--text-3xl);
  font-weight: 500;
  line-height: 1;
  color: var(--color-primary);
  font-variant-numeric: tabular-nums;
}

.page-community .stage__body {
  max-width: var(--measure);
}

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

.page-community .stage__text {
  margin: 0 0 var(--space-3);
  color: var(--color-ink-soft);
}

.page-community .stage__text a {
  color: var(--color-primary);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-community .stage__facts {
  margin: 0 0 var(--space-3);
  display: grid;
  gap: var(--space-2);
  padding: var(--space-3);
  background: var(--color-surface);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-1);
}

.page-community .stage__facts > div {
  display: grid;
  gap: 2px;
}

.page-community .stage__facts dt {
  font-size: var(--text-xs);
  letter-spacing: 0.05em;
  color: var(--color-ink-muted);
}

.page-community .stage__facts dd {
  margin: 0;
  font-size: var(--text-sm);
  color: var(--color-ink);
}

.page-community .stage__gate {
  margin: 0;
  padding-left: var(--space-2);
  border-left: 2px solid var(--color-accent);
  font-size: var(--text-sm);
  color: var(--color-ink-soft);
}

/* ---------- 主题分组 ---------- */
.page-community .topic-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-3);
  margin-bottom: var(--space-6);
}

.page-community .topic {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  padding: var(--space-4);
  background: var(--color-surface-alt);
  border-radius: var(--radius-lg);
  border: var(--border-thin) solid var(--color-line);
}

.page-community .topic__head {
  display: grid;
  gap: 4px;
}

.page-community .topic__no {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: var(--radius-sm);
  background: var(--color-primary);
  color: var(--color-primary-ink);
  font-size: var(--text-sm);
  font-weight: 500;
}

.page-community .topic__title {
  margin: var(--space-1) 0 0;
  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-community .topic__window {
  margin: 0;
  font-size: var(--text-xs);
  color: var(--color-ink-muted);
}

.page-community .topic__window .mono {
  color: var(--color-accent);
}

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

.page-community .topic__list li {
  position: relative;
  padding-left: var(--space-3);
  font-size: var(--text-sm);
  line-height: 1.7;
  color: var(--color-ink);
}

.page-community .topic__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.68em;
  width: 8px;
  height: 1px;
  background: var(--color-line);
}

.page-community .topic__fit {
  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);
}

/* ---------- 规则 ---------- */
.page-community .rules-band .section-head__title,
.page-community .rules-band .section-head__note {
  color: var(--color-contrast-ink);
}

.page-community .rules-band .section-head__note {
  opacity: 0.72;
}

.page-community .rules-band .eyebrow {
  color: var(--color-contrast-accent);
}

.page-community .rules {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: var(--border-thin) solid var(--community-rule-line);
}

.page-community .rules > li {
  border-bottom: var(--border-thin) solid var(--community-rule-line);
}

.page-community .rule {
  display: block;
}

.page-community .rule__summary {
  display: flex;
  align-items: baseline;
  gap: var(--space-3);
  padding: var(--space-3) 0;
  cursor: pointer;
  list-style: none;
  color: var(--color-contrast-ink);
}

.page-community .rule__summary::-webkit-details-marker {
  display: none;
}

.page-community .rule__summary::marker {
  content: "";
}

.page-community .rule__no {
  flex: none;
  font-family: var(--font-mono);
  font-size: var(--text-xl);
  font-weight: 500;
  line-height: 1.1;
  color: var(--color-contrast-accent);
  font-variant-numeric: tabular-nums;
}

.page-community .rule__text {
  font-size: var(--text-base);
  line-height: 1.55;
}

.page-community .rule__summary:hover .rule__text,
.page-community .rule__summary:focus-visible .rule__text {
  color: var(--color-contrast-accent);
}

.page-community .rule__note {
  margin: 0 0 var(--space-3);
  padding-left: var(--space-6);
  max-width: var(--measure);
  font-size: var(--text-sm);
  line-height: 1.75;
  color: var(--color-contrast-ink);
  opacity: 0.76;
}

.page-community .rule__note a {
  color: var(--color-contrast-accent);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-community .rules-figure {
  margin-top: var(--space-6);
  background: transparent;
}

.page-community .rules-figure img {
  border-radius: var(--radius-md);
  opacity: 0.82;
}

/* ---------- 出口 ---------- */
.page-community .exit-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-3);
}

.page-community .exit {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  padding: var(--space-4);
  background: var(--color-surface);
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-lg);
  text-decoration: none;
  transition: box-shadow 200ms ease, border-color 200ms ease;
}

.page-community .exit:hover,
.page-community .exit:focus-visible {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-1);
}

.page-community .exit__no {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-ink-muted);
  font-variant-numeric: tabular-nums;
}

.page-community .exit__title {
  margin: 0;
  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-community .exit__text {
  margin: 0;
  font-size: var(--text-sm);
  line-height: 1.75;
  color: var(--color-ink-soft);
}

.page-community .exit .arrow-link {
  margin-top: var(--space-1);
  color: var(--color-primary);
  font-size: var(--text-sm);
}

/* ---------- 焦点可见性 ---------- */
.page-community a:focus-visible,
.page-community summary:focus-visible {
  outline: 2px solid var(--color-focus);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-community .community-stats {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--space-4);
  }

  .page-community .topic-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--space-4);
  }
}

@media (min-width: 900px) {
  .page-community .community-rail__inner {
    gap: var(--space-4);
  }

  .page-community .community-rail__list {
    overflow: visible;
    gap: var(--space-4);
  }

  .page-community .stage {
    grid-template-columns: var(--community-stage-col) minmax(0, 1fr);
    gap: var(--space-6);
  }

  .page-community .stage:nth-child(even) {
    grid-template-columns: minmax(0, 1fr) var(--community-stage-col);
    padding-left: var(--space-4);
  }

  .page-community .stage:nth-child(even) .stage__no {
    order: 2;
    text-align: right;
  }

  .page-community .stage:nth-child(odd) {
    padding-right: var(--space-4);
  }

  .page-community .stage__facts {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--space-3);
  }

  .page-community .exit-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--space-4);
  }

  .page-community .rules-figure {
    margin-left: var(--space-4);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-community .community-rail__link,
  .page-community .exit {
    transition: none;
  }
}
<<<END>>>