.page-events-rules {
  --rules-rail: 92px;
  --rules-shadow: var(--color-line);
  --rules-shadow-strong: var(--color-highlight);
  background: var(--color-surface);
  color: var(--color-ink);
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: var(--leading-body);
}

/* ---------- 顶部：面包屑与规则标题 ---------- */

.page-events-rules .rules-top {
  position: relative;
  background: var(--color-surface);
  padding-block: var(--space-4) var(--space-6);
}

.page-events-rules .breadcrumb {
  font-size: var(--text-sm);
  color: var(--color-ink-muted);
}

.page-events-rules .breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1) var(--space-2);
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-events-rules .breadcrumb__list li + li::before {
  content: "/";
  margin-right: var(--space-2);
  color: var(--color-ink-muted);
}

.page-events-rules .breadcrumb__list a {
  color: var(--color-accent);
  text-decoration: none;
  border-bottom: var(--border-thin) solid transparent;
}

.page-events-rules .breadcrumb__list a:hover,
.page-events-rules .breadcrumb__list a:focus-visible {
  border-bottom-color: currentColor;
}

.page-events-rules .rules-head {
  position: relative;
  max-width: var(--measure);
  margin-top: var(--space-4);
  padding-left: var(--space-3);
  border-left: var(--border-thin) solid var(--color-primary);
}

.page-events-rules .rules-head .eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-ink-muted);
}

.page-events-rules .rules-head .eyebrow::before {
  content: "";
  display: inline-block;
  width: 18px;
  height: 3px;
  background: var(--color-primary);
}

.page-events-rules .rules-head .title-page {
  margin: var(--space-2) 0 var(--space-3);
  font-family: var(--font-heading);
  color: var(--color-ink);
}

.page-events-rules .rules-head .lede {
  margin: 0;
  font-size: var(--text-lg);
  color: var(--color-ink-soft);
}

.page-events-rules .rules-head__meta {
  margin: var(--space-3) 0 0;
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  font-variant-numeric: tabular-nums;
  color: var(--color-ink-muted);
  letter-spacing: 0.02em;
}

/* 装饰形状 */
.page-events-rules .rules-deco {
  position: absolute;
  z-index: 0;
  pointer-events: none;
}

.page-events-rules .rules-deco--dot {
  top: -6px;
  right: -12px;
  width: 26px;
  height: 26px;
  border-radius: var(--radius-pill);
  background: var(--color-highlight);
  border: var(--border-thin) solid var(--color-accent);
}

/* ---------- 区块底色轮换 ---------- */

.page-events-rules .rules-band {
  position: relative;
  padding-block: var(--section-y);
}

.page-events-rules .rules-band--surface {
  background: var(--color-surface);
}

.page-events-rules .rules-band--alt {
  background: var(--color-surface-alt);
}

.page-events-rules .rules-band--soft {
  background: var(--color-primary-soft);
}

.page-events-rules .rules-band--deep {
  background: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
}

.page-events-rules .rules-band--deep a {
  color: var(--color-contrast-accent);
}

/* ---------- 区块标题 ---------- */

.page-events-rules .rules-band__head {
  max-width: var(--measure);
  margin-bottom: var(--space-4);
}

.page-events-rules .rules-band--deep .rules-band__head {
  margin-bottom: var(--space-3);
}

.page-events-rules .rules-band__head .eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  margin: 0 0 var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  color: var(--color-ink-muted);
}

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

.page-events-rules .rules-band__head .eyebrow::before {
  content: "";
  display: inline-block;
  width: 18px;
  height: 3px;
  background: var(--color-accent);
}

.page-events-rules .rules-band--deep .rules-band__head .eyebrow::before {
  background: var(--color-contrast-accent);
}

.page-events-rules .rules-band__head .title-section {
  margin: 0 0 var(--space-2);
  font-family: var(--font-heading);
}

.page-events-rules .rules-band__lede {
  margin: 0;
  color: var(--color-ink-soft);
}

.page-events-rules .rules-band--deep .rules-band__lede {
  color: var(--color-contrast-ink);
  opacity: 0.86;
}

/* ---------- 规则条目 ---------- */

.page-events-rules .rule-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  margin: 0;
}

.page-events-rules .rule-item {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-2);
  padding: var(--space-3);
  background: var(--color-surface);
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-sm);
  transition: transform 150ms ease, border-color 150ms ease, box-shadow 150ms ease;
}

.page-events-rules .rule-item:hover {
  transform: translate(-2px, -2px);
  border-color: var(--color-accent);
  box-shadow: 4px 4px 0 var(--rules-shadow-strong);
}

.page-events-rules .rule-item:focus-within {
  border-color: var(--color-focus);
  box-shadow: 0 0 0 var(--border-thin) var(--color-focus);
}

.page-events-rules .rule-item__no {
  justify-self: start;
  align-self: start;
  margin: 0;
  padding: 4px 12px;
  background: var(--color-surface-deep);
  border: var(--border-thin) solid var(--color-ink-muted);
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  font-variant-numeric: tabular-nums;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--color-ink);
}

.page-events-rules .rule-item__body {
  min-width: 0;
}

.page-events-rules .rule-item__title {
  margin: 0 0 var(--space-2);
  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-events-rules .rule-item__body p {
  margin: 0 0 var(--space-2);
  color: var(--color-ink);
}

.page-events-rules .rule-item__body p:last-child {
  margin-bottom: 0;
}

.page-events-rules .rule-item__body a {
  color: var(--color-accent);
  text-decoration: none;
  border-bottom: var(--border-thin) solid var(--color-highlight);
}

.page-events-rules .rule-item__body a:hover,
.page-events-rules .rule-item__body a:focus-visible {
  border-bottom-color: var(--color-accent);
}

.page-events-rules .rule-item__body .chip {
  margin-right: 2px;
}

/* 折叠：例外情形 */
.page-events-rules .rule-item .fold {
  margin-top: var(--space-2);
  padding-top: var(--space-2);
  border-top: var(--border-thin) dashed var(--color-line);
}

.page-events-rules .rule-item .fold summary {
  cursor: pointer;
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--color-accent);
  list-style: none;
}

.page-events-rules .rule-item .fold summary::-webkit-details-marker {
  display: none;
}

.page-events-rules .rule-item .fold summary::before {
  content: "+";
  display: inline-block;
  width: 1.2em;
  font-family: var(--font-mono);
}

.page-events-rules .rule-item .fold[open] summary::before {
  content: "–";
}

.page-events-rules .rule-item .fold summary:focus-visible {
  outline: var(--border-thin) solid var(--color-focus);
  outline-offset: 2px;
}

.page-events-rules .rule-item .fold .fold__body {
  margin-top: var(--space-2);
  padding: var(--space-2) var(--space-3);
  background: var(--color-highlight);
  border-left: 4px solid var(--color-accent);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-size: var(--text-sm);
  color: var(--color-ink);
}

.page-events-rules .rule-item .fold .fold__body p {
  margin: 0;
  font-size: var(--text-sm);
}

/* 深色区块内的规则条目 */
.page-events-rules .rule-list--deep .rule-item {
  background: transparent;
  border-color: var(--color-contrast-line);
  color: var(--color-contrast-ink);
}

.page-events-rules .rule-list--deep .rule-item:hover {
  border-color: var(--color-contrast-accent);
  box-shadow: 4px 4px 0 var(--color-contrast-line);
}

.page-events-rules .rule-list--deep .rule-item__no {
  background: transparent;
  border-color: var(--color-contrast-accent);
  color: var(--color-contrast-accent);
}

.page-events-rules .rule-list--deep .rule-item__title,
.page-events-rules .rule-list--deep .rule-item__body p {
  color: var(--color-contrast-ink);
}

/* ---------- 图文区块 ---------- */

.page-events-rules .rules-split {
  display: block;
}

.page-events-rules .rules-split__main {
  min-width: 0;
}

.page-events-rules .rules-figure {
  margin: var(--space-4) 0 0;
  background: var(--color-surface);
  border: var(--border-thin) solid var(--color-ink-muted);
  border-radius: var(--radius-md);
  overflow: hidden;
}

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

.page-events-rules .rules-figure figcaption {
  padding: var(--space-2) var(--space-3);
  background: var(--color-surface-deep);
  border-top: var(--border-thin) solid var(--color-line);
  font-size: var(--text-sm);
  color: var(--color-ink-soft);
}

/* ---------- 收束与出口 ---------- */

.page-events-rules .rules-exits {
  margin-top: var(--space-4);
  padding-top: var(--space-4);
  border-top: var(--border-thin) solid var(--color-contrast-line);
}

.page-events-rules .rules-exits__note {
  margin: 0 0 var(--space-3);
  max-width: var(--measure);
  color: var(--color-contrast-ink);
  opacity: 0.88;
}

/* ---------- 响应式 ---------- */

@media (min-width: 720px) {
  .page-events-rules .rule-item {
    grid-template-columns: var(--rules-rail) minmax(0, 1fr);
    gap: var(--space-3);
    align-items: start;
    padding: var(--space-4);
  }

  .page-events-rules .rules-head {
    padding-left: var(--space-4);
  }

  .page-events-rules .rules-band__head {
    margin-bottom: var(--space-6);
  }
}

@media (min-width: 900px) {
  .page-events-rules .rules-split {
    display: grid;
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.8fr);
    gap: var(--space-6);
    align-items: start;
  }

  .page-events-rules .rules-figure--side {
    margin-top: 0;
    position: sticky;
    top: var(--space-4);
  }
}

@media (min-width: 1080px) {
  .page-events-rules .rules-deco--dot {
    right: auto;
    left: calc(var(--measure) + var(--space-4));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-events-rules .rule-item {
    transition: none;
  }

  .page-events-rules .rule-item:hover {
    transform: none;
  }
}
<<<END>>>