.page-community {
  --cm-overlap: var(--space-4);
}

/* ---------- 通用页头 ---------- */
.page-community .cm-head {
  max-width: 46ch;
  margin-bottom: var(--space-6);
}

.page-community .cm-head__lead {
  margin-top: var(--space-3);
  margin-bottom: 0;
  color: var(--color-ink-soft);
  font-size: var(--text-base);
  line-height: var(--leading-body);
}

/* ---------- 首屏 ---------- */
.page-community .cm-hero {
  padding-top: var(--space-6);
  padding-bottom: 0;
}

.page-community .cm-hero__kicker {
  margin-bottom: var(--space-2);
  color: var(--color-ink-muted);
  letter-spacing: 0.06em;
}

.page-community .cm-hero__title {
  margin: 0;
  padding-bottom: var(--space-2);
  font-size: var(--text-display);
  line-height: 1.02;
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink);
}

.page-community .cm-hero__band {
  margin-top: calc(var(--space-2) * -1);
  padding: var(--space-6) 0 var(--space-8);
}

.page-community .cm-hero__inner {
  display: grid;
  gap: var(--space-6);
}

.page-community .cm-hero__lead {
  margin: 0;
  max-width: 44ch;
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-contrast-ink);
}

.page-community .cm-hero__figures {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-4) var(--space-3);
  margin-top: var(--space-6);
}

.page-community .cm-fig {
  border-top: var(--border-thin) solid var(--color-contrast-line);
  padding-top: var(--space-2);
}

.page-community .cm-fig__num {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--text-xl);
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--color-contrast-accent);
}

.page-community .cm-fig__label {
  display: block;
  margin-top: var(--space-1);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  line-height: 1.35;
  color: var(--color-contrast-ink);
}

.page-community .cm-hero__media {
  margin: 0;
}

.page-community .cm-hero__media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: var(--radius-lg);
}

.page-community .cm-hero__media .media__caption {
  display: block;
  margin-top: var(--space-1);
  color: var(--color-contrast-ink);
  opacity: 0.7;
}

/* ---------- 参与规则 ---------- */
.page-community .cm-rules__grid {
  display: grid;
  gap: var(--space-6);
}

.page-community .cm-rules__tag {
  margin-bottom: var(--space-2);
  color: var(--color-primary);
  letter-spacing: 0.1em;
}

.page-community .cm-rules__col--no .cm-rules__tag {
  color: var(--color-ink-muted);
}

.page-community .cm-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: var(--space-2);
}

.page-community .cm-list li {
  position: relative;
  padding-left: var(--space-3);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.page-community .cm-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 10px;
  height: 2px;
  background: var(--color-primary);
}

.page-community .cm-rules__col--no .cm-list li::before {
  background: var(--color-ink-muted);
}

.page-community .cm-rules__media {
  margin: 0;
}

.page-community .cm-rules__media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: var(--radius-lg);
  border: var(--border-thin) solid var(--color-line);
}

.page-community .cm-rules__media .media__caption {
  display: block;
  margin-top: var(--space-1);
  color: var(--color-ink-muted);
}

.page-community .cm-rules__note {
  margin: var(--space-3) 0 0;
  font-size: var(--text-sm);
  line-height: var(--leading-body);
  color: var(--color-ink-muted);
}

.page-community .cm-rules__note a {
  color: var(--color-accent);
  text-underline-offset: 3px;
}

/* ---------- 话题分类 ---------- */
.page-community .cm-topics__layout {
  display: grid;
  gap: var(--space-6);
}

.page-community .cm-topics__side .lead {
  margin-top: var(--space-3);
  color: var(--color-ink-soft);
  font-size: var(--text-base);
  line-height: var(--leading-body);
}

.page-community .cm-topics__media {
  margin: var(--space-4) 0 0;
}

.page-community .cm-topics__media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: var(--radius-lg);
  border: var(--border-thin) solid var(--color-line);
}

.page-community .cm-topics__media .media__caption {
  display: block;
  margin-top: var(--space-1);
  color: var(--color-ink-muted);
}

.page-community .cm-topics__list {
  display: grid;
  gap: var(--space-2);
}

.page-community .cm-topic {
  display: grid;
  gap: var(--space-2);
  padding: var(--space-3) 0 var(--space-4);
  border-top: var(--border-thin) solid var(--color-line);
  scroll-margin-top: var(--space-8);
}

.page-community .cm-topic__num {
  justify-self: start;
  padding: 2px var(--space-1);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.14em;
  color: var(--color-primary-ink);
  background: var(--color-primary);
}

.page-community .cm-topic:nth-child(even) .cm-topic__num {
  color: var(--color-accent-ink);
  background: var(--color-accent);
}

.page-community .cm-topic h3 {
  margin: 0;
}

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

.page-community .cm-topic__hint {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--color-ink-muted);
}

/* ---------- 常见问答 ---------- */
.page-community .cm-faq__list {
  display: grid;
  gap: var(--space-1);
}

.page-community .cm-qa {
  border-left: 3px solid var(--color-line);
  background: var(--color-surface-alt);
  padding: 0 var(--space-3);
  transition: border-color 120ms linear, background-color 120ms linear;
}

.page-community .cm-qa[open] {
  border-left-color: var(--color-primary);
  background: var(--color-surface);
}

.page-community .cm-qa__q {
  display: flex;
  gap: var(--space-2);
  align-items: baseline;
  padding: var(--space-3) 0;
  cursor: pointer;
  list-style: none;
  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 .cm-qa__q::-webkit-details-marker {
  display: none;
}

.page-community .cm-qa__q::after {
  content: "+";
  margin-left: auto;
  flex: none;
  font-family: var(--font-mono);
  font-size: var(--text-lg);
  line-height: 1;
  color: var(--color-ink-muted);
}

.page-community .cm-qa[open] .cm-qa__q::after {
  content: "−";
  color: var(--color-primary);
}

.page-community .cm-qa__idx {
  flex: none;
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  letter-spacing: 0.06em;
  color: var(--color-primary);
}

.page-community .cm-qa__text {
  min-width: 0;
}

.page-community .cm-qa__a {
  padding: 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 .cm-qa__a p {
  margin: 0 0 var(--space-2);
}

.page-community .cm-qa__a p:last-child {
  margin-bottom: 0;
}

.page-community .cm-qa__a a {
  color: var(--color-accent);
  text-underline-offset: 3px;
}

.page-community .cm-qa__next {
  padding-top: var(--space-2);
  border-top: var(--border-thin) solid var(--color-line);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--color-ink);
}

@keyframes cmQaIn {
  from {
    opacity: 0;
    transform: translateY(-3px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

.page-community .cm-qa[open] .cm-qa__a {
  animation: cmQaIn 160ms ease-out;
}

/* ---------- 提问方式 ---------- */
.page-community .cm-ask__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: var(--space-4);
}

.page-community .cm-ask__item {
  padding-top: var(--space-3);
  border-top: 2px solid var(--color-primary);
}

.page-community .cm-ask__item:nth-child(2) {
  border-top-color: var(--color-accent);
}

.page-community .cm-ask__item:nth-child(3) {
  border-top-color: var(--color-ink-muted);
}

.page-community .cm-ask__num {
  display: block;
  margin-bottom: var(--space-1);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  letter-spacing: 0.12em;
  color: var(--color-ink-muted);
}

.page-community .cm-ask__item h3 {
  margin: 0 0 var(--space-2);
}

.page-community .cm-ask__item p {
  margin: 0;
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.page-community .cm-ask__foot {
  margin: var(--space-6) 0 0;
  padding-top: var(--space-3);
  border-top: var(--border-thin) solid var(--color-line);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--color-ink-muted);
}

/* ---------- 下一步 ---------- */
.page-community .cm-next__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: var(--space-2);
}

.page-community .cm-next__link {
  display: grid;
  gap: var(--space-1);
  padding: var(--space-3) var(--space-3) var(--space-3) var(--space-4);
  border-left: 2px solid var(--color-primary);
  background: var(--color-surface-alt);
  text-decoration: none;
  transition: transform 120ms linear, border-color 120ms linear;
}

.page-community .cm-next__item:nth-child(2) .cm-next__link {
  border-left-color: var(--color-accent);
}

.page-community .cm-next__item:nth-child(3) .cm-next__link {
  border-left-color: var(--color-ink-muted);
}

.page-community .cm-next__k {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  letter-spacing: 0.1em;
  color: var(--color-ink);
}

.page-community .cm-next__v {
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.page-community .cm-next__cta {
  margin: var(--space-6) 0 0;
  padding-top: var(--space-3);
  border-top: var(--border-thin) solid var(--color-line);
  max-width: var(--measure);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink);
}

/* ---------- 交互态 ---------- */
.page-community a:focus-visible,
.page-community summary:focus-visible {
  outline: 2px solid var(--color-focus);
  outline-offset: 2px;
}

.page-community .cm-next__link:hover {
  transform: translateX(2px);
}

.page-community .cm-next__link:hover .cm-next__k,
.page-community .cm-qa__a a:hover,
.page-community .cm-rules__note a:hover {
  text-decoration: underline;
  text-decoration-thickness: 2px;
}

/* ---------- 平板 ---------- */
@media (min-width: 700px) {
  .page-community .cm-hero__figures {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-community .cm-fig__num {
    font-size: var(--text-2xl);
  }

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

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

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

/* ---------- 桌面 ---------- */
@media (min-width: 900px) {
  .page-community .cm-hero__inner {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    align-items: end;
    gap: var(--space-8);
  }

  .page-community .cm-hero__media {
    margin-top: calc(var(--space-6) * -1);
  }

  .page-community .cm-rules__grid {
    grid-template-columns: repeat(12, minmax(0, 1fr));
    column-gap: var(--space-4);
    row-gap: var(--space-8);
    align-items: start;
  }

  .page-community .cm-rules__col--yes {
    grid-column: 1 / 7;
  }

  .page-community .cm-rules__media {
    grid-column: 8 / 13;
    margin-top: var(--space-8);
  }

  .page-community .cm-rules__col--no {
    grid-column: 4 / 12;
  }

  .page-community .cm-rules__col--no .cm-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-community .cm-topics__layout {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    column-gap: var(--space-8);
    align-items: start;
  }

  .page-community .cm-topics__list {
    grid-template-columns: minmax(0, 1fr);
    gap: 0;
  }

  .page-community .cm-topic {
    padding: var(--space-4) 0 var(--space-4);
  }

  .page-community .cm-qa__q {
    font-size: var(--text-xl);
  }

  .page-community .cm-ask__item:nth-child(2) {
    margin-top: var(--space-6);
  }

  .page-community .cm-ask__item:nth-child(3) {
    margin-top: var(--space-3);
  }

  .page-community .cm-next__list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    column-gap: var(--space-4);
    align-items: start;
  }

  .page-community .cm-next__item:nth-child(2) {
    margin-top: var(--space-4);
  }

  .page-community .cm-next__item:nth-child(3) {
    margin-top: calc(var(--space-8) * -1);
  }
}

@media (min-width: 1180px) {
  .page-community .cm-fig__num {
    font-size: var(--text-3xl);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-community .cm-qa[open] .cm-qa__a {
    animation: none;
  }

  .page-community .cm-next__link {
    transition: none;
  }

  .page-community .cm-next__link:hover {
    transform: none;
  }
}