.page-community-rules {
  --cr-rail-gap: 30px;
  --cr-tick: 5px;
  background: var(--color-surface);
  color: var(--color-ink);
}

@media (min-width: 720px) {
  .page-community-rules {
    --cr-rail-gap: 56px;
  }
}

/* ---------- 页首斜切窄带 ---------- */

.page-community-rules .cr-band {
  position: relative;
  overflow: hidden;
  padding-block: var(--space-4) var(--space-8);
  background:
    linear-gradient(158deg, var(--color-surface-alt) 0%, var(--color-surface) 58%),
    var(--color-surface);
}

.page-community-rules .cr-band::after {
  content: "";
  position: absolute;
  left: -3%;
  right: -3%;
  bottom: 0;
  height: 6px;
  background: linear-gradient(90deg, var(--color-primary) 0 56%, var(--color-accent) 56% 100%);
  transform: skewX(-6deg);
  transform-origin: left bottom;
}

.page-community-rules .cr-band .breadcrumb {
  margin-bottom: var(--space-6);
}

.page-community-rules .cr-band__grid {
  display: grid;
  gap: var(--space-6);
  align-items: end;
}

@media (min-width: 900px) {
  .page-community-rules .cr-band__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.8fr);
    gap: var(--space-8);
  }
}

.page-community-rules .cr-band__lead h1 {
  margin: var(--space-2) 0 var(--space-3);
  font-size: var(--text-3xl);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  max-width: 20ch;
}

.page-community-rules .cr-band__lead .t-lead {
  max-width: 60ch;
  color: var(--color-ink-soft);
}

.page-community-rules .cr-band__back {
  margin-top: var(--space-4);
}

.page-community-rules .cr-band__media {
  margin: 0;
  border: var(--border-thick) solid var(--color-contrast-surface);
  box-shadow: var(--shadow-1);
  overflow: hidden;
  aspect-ratio: 16 / 9;
  clip-path: polygon(0 7%, 100% 0, 100% 93%, 0 100%);
  background: var(--color-surface-deep);
}

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

/* ---------- 规则刻度区 ---------- */

.page-community-rules .cr-rules {
  padding-block: var(--section-y-lg) var(--section-y);
}

.page-community-rules .cr-rules .section-head {
  margin-bottom: var(--space-8);
}

.page-community-rules .cr-rail {
  position: relative;
  padding-left: var(--cr-rail-gap);
  max-width: calc(var(--measure) + var(--cr-rail-gap) + 6px);
}

.page-community-rules .cr-rail::before {
  content: "";
  position: absolute;
  left: calc(var(--cr-tick) - 1px);
  top: 6px;
  bottom: 6px;
  width: 2px;
  background: var(--color-contrast-surface);
  opacity: 0.34;
}

.page-community-rules .cr-rail__group + .cr-rail__group {
  margin-top: var(--space-8);
}

.page-community-rules .cr-rail__group + .cr-rail__group::before {
  content: "";
  display: block;
  width: 68px;
  height: 3px;
  margin-bottom: var(--space-4);
  background: var(--color-contrast-surface);
  transform: skewX(-32deg);
}

.page-community-rules .cr-rail__group-label {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin: 0 0 var(--space-3);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  letter-spacing: 0.08em;
  color: var(--color-ink-muted);
}

.page-community-rules .cr-rail__ticks {
  display: inline-flex;
  gap: 3px;
}

.page-community-rules .cr-rail__ticks i {
  display: block;
  width: 3px;
  height: 13px;
  background: var(--color-primary);
  transform: skewX(-14deg);
}

.page-community-rules .cr-rail__ticks i:nth-child(2) {
  background: var(--color-accent);
}

.page-community-rules .cr-rail__ticks i:nth-child(3) {
  background: var(--color-contrast-surface);
}

/* 单条规则 */

.page-community-rules .cr-entry {
  position: relative;
  border-bottom: var(--border-thin) solid var(--color-line);
}

.page-community-rules .cr-entry:last-child {
  border-bottom: 0;
}

.page-community-rules .cr-entry::before {
  content: "";
  position: absolute;
  left: calc(-1 * var(--cr-rail-gap) + var(--cr-tick));
  top: 22px;
  width: 10px;
  height: 10px;
  transform: translateX(-50%) rotate(45deg);
  background: var(--color-primary);
  border: 2px solid var(--color-surface);
  transition: background-color 200ms ease-out;
}

.page-community-rules .cr-entry:has(.cr-entry__trigger[aria-expanded="true"])::before {
  background: var(--color-accent);
}

.page-community-rules .cr-entry__trigger {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: var(--space-3);
  width: 100%;
  padding: var(--space-3) 0;
  background: transparent;
  border: 0;
  font: inherit;
  color: inherit;
  text-align: left;
  cursor: pointer;
}

.page-community-rules .cr-entry__trigger:focus-visible {
  outline: 3px solid var(--color-focus);
  outline-offset: 3px;
}

.page-community-rules .cr-entry__title {
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  letter-spacing: var(--tracking-heading);
  line-height: var(--leading-heading);
}

.page-community-rules .cr-entry__sign {
  position: relative;
  flex: none;
  width: 14px;
  height: 14px;
}

.page-community-rules .cr-entry__sign::before,
.page-community-rules .cr-entry__sign::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 50%;
  height: 3px;
  background: var(--color-contrast-surface);
  transform: translateY(-50%);
}

.page-community-rules .cr-entry__sign::after {
  transform: translateY(-50%) rotate(90deg);
  transition: transform 220ms ease-out;
}

.page-community-rules .cr-entry__trigger[aria-expanded="true"] .cr-entry__sign::after {
  transform: translateY(-50%) rotate(0deg);
}

.page-community-rules .cr-entry__trigger:hover .cr-entry__title {
  color: var(--color-primary);
}

.page-community-rules .cr-entry .acc__body {
  padding-bottom: var(--space-4);
  max-width: var(--measure);
}

.page-community-rules .cr-entry__body p {
  margin: 0 0 var(--space-2);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.page-community-rules .cr-entry__body p:first-child {
  color: var(--color-ink);
}

.page-community-rules .cr-entry__note {
  display: block;
  font-size: var(--text-sm);
  line-height: 1.55;
}

.page-community-rules .cr-entry__note .mark-invert {
  display: inline-block;
  margin-right: var(--space-1);
}

/* ---------- 对照区 ---------- */

.page-community-rules .cr-compare-wrap {
  padding-block: var(--section-y);
  background: var(--color-surface-alt);
  position: relative;
}

.page-community-rules .cr-compare-wrap::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--color-accent) 0 38%, var(--color-primary) 38% 100%);
  transform: skewX(-5deg) scaleX(1.05);
  transform-origin: left top;
}

.page-community-rules .cr-compare-wrap .section-head {
  margin-bottom: var(--space-6);
}

.page-community-rules .cr-compare {
  display: grid;
  gap: var(--space-3);
}

@media (min-width: 760px) {
  .page-community-rules .cr-compare {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--space-4);
  }
}

.page-community-rules .cr-compare__col {
  border: var(--border-thick) solid var(--color-contrast-surface);
  box-shadow: var(--shadow-1);
  padding: var(--space-4) var(--space-3) var(--space-3);
  border-radius: var(--radius-sm);
  transition: box-shadow 200ms ease-out;
}

.page-community-rules .cr-compare__col:hover {
  box-shadow: 0 2px 0 var(--color-contrast-surface);
}

.page-community-rules .cr-compare__col--do {
  background: var(--color-surface-deep);
}

.page-community-rules .cr-compare__col--dont {
  background: var(--color-primary-soft);
}

.page-community-rules .cr-compare__label {
  display: inline-block;
  margin: 0 0 var(--space-3);
  padding: 4px 10px;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.06em;
  border-radius: var(--radius-sm);
}

.page-community-rules .cr-compare__col--do .cr-compare__label {
  background: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
}

.page-community-rules .cr-compare__col--dont .cr-compare__label {
  background: var(--color-primary);
  color: var(--color-primary-ink);
}

.page-community-rules .cr-compare__col ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-community-rules .cr-compare__col li {
  position: relative;
  padding-left: var(--space-3);
  margin-bottom: var(--space-2);
  font-size: var(--text-base);
  line-height: 1.5;
  color: var(--color-ink);
}

.page-community-rules .cr-compare__col li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 10px;
  height: 3px;
  background: var(--color-contrast-surface);
  transform: skewX(-30deg);
}

.page-community-rules .cr-compare__col--dont li::before {
  background: var(--color-primary);
}

/* ---------- 讨论主题区 ---------- */

.page-community-rules .cr-topics {
  padding-block: var(--section-y);
}

.page-community-rules .cr-topics .section-head {
  margin-bottom: var(--space-6);
}

.page-community-rules .cr-topics__media {
  margin: 0 0 var(--space-6);
  border: var(--border-thick) solid var(--color-contrast-surface);
  box-shadow: var(--shadow-1);
  overflow: hidden;
  aspect-ratio: 3 / 1;
  background: var(--color-surface-deep);
}

.page-community-rules .cr-topics__media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  max-width: 100%;
}

.page-community-rules .cr-topics__grid {
  display: grid;
  gap: var(--space-4);
}

@media (min-width: 1000px) {
  .page-community-rules .cr-topics__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--space-3);
    align-items: start;
  }
  .page-community-rules .cr-topic:nth-child(2) {
    transform: translateY(46px);
  }
}

.page-community-rules .cr-topic {
  position: relative;
  padding: var(--space-4) var(--space-3) var(--space-3);
  background: var(--color-surface);
  border: var(--border-thick) solid var(--color-contrast-surface);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-1);
  transition: box-shadow 200ms ease-out;
}

.page-community-rules .cr-topic:hover {
  box-shadow: 0 2px 0 var(--color-contrast-surface);
}

.page-community-rules .cr-topic::after {
  content: "";
  position: absolute;
  top: -3px;
  left: -3px;
  width: 46%;
  height: 6px;
  background: var(--color-primary);
  transform: skewX(-24deg);
  transform-origin: left top;
}

.page-community-rules .cr-topic:nth-child(2)::after {
  background: var(--color-accent);
}

.page-community-rules .cr-topic:nth-child(3)::after {
  background: var(--color-contrast-surface);
}

.page-community-rules .cr-topic__kicker {
  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-community-rules .cr-topic__title {
  margin: 0 0 var(--space-2);
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
}

.page-community-rules .cr-topic p {
  margin: 0 0 var(--space-3);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.page-community-rules .cr-topic__link {
  font-size: var(--text-sm);
  font-weight: 600;
}

/* ---------- 收束区 ---------- */

.page-community-rules .cr-outro {
  padding-block: var(--section-y) var(--section-y-lg);
  background: var(--color-surface-alt);
  position: relative;
}

.page-community-rules .cr-outro::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 4px;
  background: var(--color-primary);
  transform: skewX(-4deg) scaleX(1.04);
  transform-origin: left top;
}

.page-community-rules .cr-outro__grid {
  display: grid;
  gap: var(--space-6);
  align-items: center;
}

@media (min-width: 900px) {
  .page-community-rules .cr-outro__grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.7fr);
    gap: var(--space-8);
  }
}

.page-community-rules .cr-outro__title {
  margin: 0 0 var(--space-3);
  font-size: var(--text-2xl);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
}

.page-community-rules .cr-outro__text p {
  margin: 0 0 var(--space-4);
  max-width: var(--measure);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.page-community-rules .cr-outro__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.page-community-rules .cr-outro__media {
  margin: 0;
  border: var(--border-thick) solid var(--color-contrast-surface);
  box-shadow: var(--shadow-1);
  overflow: hidden;
  aspect-ratio: 2 / 1;
  background: var(--color-surface-deep);
}

.page-community-rules .cr-outro__media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  max-width: 100%;
}