.page-community {
  display: block;
  scroll-behavior: smooth;
}

/* ---------- 首屏 ---------- */
.page-community .community-hero {
  padding: var(--space-6) 0 var(--space-6);
  border-bottom: var(--border-thin) solid var(--color-line);
}

.page-community .community-hero__kicker {
  margin: 0 0 var(--space-4);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-primary);
}

.page-community .community-hero__title {
  margin: 0;
  max-width: 8em;
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: var(--text-display);
  line-height: 0.92;
  letter-spacing: -0.04em;
  color: var(--color-ink);
}

.page-community .community-hero__lede {
  margin: var(--space-6) 0 0;
  max-width: 46ch;
  font-size: var(--text-lg);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.page-community .community-stats {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  margin: var(--space-6) 0 0;
  padding: 0;
  list-style: none;
  border-top: var(--border-thin) solid var(--color-line);
}

.page-community .community-stats__item {
  display: flex;
  align-items: baseline;
  gap: var(--space-3);
  padding: var(--space-3) 0;
  border-bottom: var(--border-thin) solid var(--color-line);
}

.page-community .community-stats__num {
  flex-shrink: 0;
  font-family: var(--font-mono);
  font-size: var(--text-2xl);
  font-weight: 600;
  line-height: 1;
  font-variant-numeric: tabular-nums;
  color: var(--color-ink);
}

.page-community .community-stats__num--wide {
  font-size: var(--text-lg);
}

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

/* ---------- 深色索引条 ---------- */
.page-community .community-index {
  padding: var(--space-6) 0 0;
}

.page-community .community-index__media {
  position: relative;
  display: block;
  isolation: isolate;
  min-height: 440px;
  overflow: hidden;
  background-color: var(--color-contrast-surface);
}

.page-community .community-index__media .media__img {
  position: absolute;
  inset: 0;
  z-index: 1;
  width: 100%;
  height: 100%;
  max-width: none;
  object-fit: cover;
  object-position: center;
}

.page-community .community-index__media .media__scrim {
  position: absolute;
  inset: 0;
  z-index: 2;
  background: var(--overlay-scrim);
}

.page-community .community-index__body {
  position: relative;
  z-index: 3;
  padding: var(--space-6) var(--space-3) var(--space-4);
}

.page-community .community-index__kicker {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.12em;
  color: var(--color-contrast-ink);
  opacity: 0.72;
}

.page-community .index-strip {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  margin: var(--space-4) 0 0;
  padding: 0;
  list-style: none;
  border-top: var(--border-thin) solid var(--color-contrast-line);
}

.page-community .index-strip__item {
  border-bottom: var(--border-thin) solid var(--color-contrast-line);
}

.page-community .index-strip__link {
  display: flex;
  align-items: baseline;
  gap: var(--space-3);
  padding: var(--space-3) 0;
  text-decoration: none;
  color: var(--color-contrast-ink);
  transition: color 160ms ease-out;
}

.page-community .index-strip__num {
  flex-shrink: 0;
  font-family: var(--font-mono);
  font-size: var(--text-xl);
  font-weight: 600;
  line-height: 1;
  font-variant-numeric: tabular-nums;
  color: color-mix(in srgb, var(--color-contrast-ink) 52%, transparent);
}

.page-community .index-strip__name {
  position: relative;
  font-size: var(--text-lg);
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--color-contrast-ink);
}

.page-community .index-strip__name::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -3px;
  height: 1px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 180ms ease-out;
}

.page-community .index-strip__link:hover .index-strip__name::after,
.page-community .index-strip__link:focus-visible .index-strip__name::after {
  transform: scaleX(1);
}

.page-community .index-strip__item--hot .index-strip__num {
  color: var(--color-contrast-accent);
}

.page-community .index-strip__item--hot .index-strip__name {
  color: var(--color-primary-ink);
}

/* ---------- 通用区块节奏 ---------- */
.page-community .community-block {
  padding-top: var(--section-y);
}

/* ---------- 问答区引言 ---------- */
.page-community .qa-intro__title {
  margin: 0;
  font-size: var(--text-3xl);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink);
}

.page-community .qa-intro__lede {
  margin: var(--space-3) 0 0;
  max-width: var(--measure);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.page-community .qa-intro__media {
  margin: var(--space-6) 0 0;
}

.page-community .qa-intro__media .media__img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border-top: var(--border-thick) solid var(--color-primary);
  border-bottom: var(--border-thin) solid var(--color-line);
}

.page-community .qa-intro__cap {
  margin: var(--space-2) 0 0;
  max-width: var(--measure);
  font-size: var(--text-sm);
  line-height: var(--leading-body);
  color: var(--color-ink-muted);
}

/* ---------- 问答分组 ---------- */
.page-community .qa-group {
  padding-top: var(--space-4);
  border-top: var(--border-thin) solid var(--color-ink);
  scroll-margin-top: var(--space-8);
}

.page-community .qa-group:first-of-type {
  border-top-color: var(--color-primary);
}

.page-community .qa-group + .qa-group {
  margin-top: var(--space-8);
}

.page-community .qa-group__head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  column-gap: var(--space-3);
  row-gap: var(--space-1);
  align-items: baseline;
  margin-bottom: var(--space-2);
}

.page-community .qa-group__num {
  font-family: var(--font-mono);
  font-size: var(--text-xl);
  font-weight: 600;
  line-height: 1;
  font-variant-numeric: tabular-nums;
  color: var(--color-primary);
}

.page-community .qa-group__title {
  margin: 0;
  font-size: var(--text-2xl);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink);
}

.page-community .qa-group__desc {
  grid-column: 1 / -1;
  margin: 0;
  max-width: var(--measure);
  font-size: var(--text-sm);
  line-height: var(--leading-body);
  color: var(--color-ink-muted);
}

/* ---------- 单条问答 ---------- */
.page-community .qa {
  border-bottom: 1px dotted var(--color-line);
}

.page-community .qa__q {
  position: relative;
  display: flex;
  align-items: baseline;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-2) var(--space-3) var(--space-4);
  font-size: var(--text-base);
  font-weight: 600;
  line-height: var(--leading-heading);
  color: var(--color-ink);
  cursor: pointer;
  list-style: none;
  transition: color 160ms ease-out;
}

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

.page-community .qa__q::before {
  content: "";
  position: absolute;
  left: 0;
  top: var(--space-3);
  bottom: var(--space-3);
  width: 2px;
  background: transparent;
  transition: background-color 160ms ease-out;
}

.page-community .qa[open] > .qa__q::before {
  background: var(--color-primary);
}

.page-community .qa__q::after {
  content: "＋";
  margin-left: auto;
  flex-shrink: 0;
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  font-weight: 400;
  color: var(--color-ink-muted);
  transition: color 160ms ease-out;
}

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

.page-community .qa__q:hover {
  color: var(--color-primary);
}

.page-community .qa__a {
  padding: 0 var(--space-2) var(--space-4) var(--space-4);
}

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

/* ---------- 深色对比分组 ---------- */
.page-community .qa-group--contrast {
  border-top-color: var(--color-contrast-surface);
  background-color: var(--color-contrast-surface);
  padding: var(--space-4) var(--space-3) var(--space-1);
}

.page-community .qa-group--contrast .qa-group__num {
  color: var(--color-contrast-accent);
}

.page-community .qa-group--contrast .qa-group__title,
.page-community .qa-group--contrast .qa__q {
  color: var(--color-contrast-ink);
}

.page-community .qa-group--contrast .qa-group__desc,
.page-community .qa-group--contrast .qa__a p {
  color: color-mix(in srgb, var(--color-contrast-ink) 74%, transparent);
}

.page-community .qa-group--contrast .qa {
  border-bottom-color: var(--color-contrast-line);
}

.page-community .qa-group--contrast .qa:last-child {
  border-bottom: 0;
}

.page-community .qa-group--contrast .qa__q::after {
  color: color-mix(in srgb, var(--color-contrast-ink) 60%, transparent);
}

.page-community .qa-group--contrast .qa[open] > .qa__q::after {
  color: var(--color-contrast-accent);
}

.page-community .qa-group--contrast .qa__q:hover {
  color: var(--color-contrast-accent);
}

/* ---------- 规则面板 ---------- */
.page-community .rules-panel {
  padding: var(--space-4) 0;
  border-top: var(--border-thick) solid var(--color-ink);
  border-bottom: var(--border-thin) solid var(--color-ink);
}

.page-community .rules-panel__kicker {
  margin: 0 0 var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.14em;
  color: var(--color-ink-muted);
}

.page-community .rules-panel__title {
  margin: 0 0 var(--space-4);
  max-width: 22ch;
  font-size: var(--text-2xl);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink);
}

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

.page-community .rules-list__item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: var(--space-3);
  align-items: baseline;
  padding: var(--space-3) 0;
  border-top: 1px dotted var(--color-line);
}

.page-community .rules-list__item:first-child {
  border-top: 0;
}

.page-community .rules-list__idx {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  color: var(--color-primary);
}

.page-community .rules-list__text {
  margin: 0;
  max-width: var(--measure);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink);
}

/* ---------- 纠错反馈 ---------- */
.page-community .feedback-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
}

.page-community .feedback-grid__kicker {
  margin: 0 0 var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.14em;
  color: var(--color-ink-muted);
}

.page-community .feedback-grid__title {
  margin: 0;
  max-width: 20ch;
  font-size: var(--text-2xl);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink);
}

.page-community .feedback-steps {
  margin: var(--space-4) 0 0;
  padding: 0;
  list-style: none;
  border-top: var(--border-thin) solid var(--color-line);
}

.page-community .feedback-steps__item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: var(--space-3);
  padding: var(--space-3) 0;
  border-bottom: 1px dotted var(--color-line);
}

.page-community .feedback-steps__idx {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  font-weight: 600;
  line-height: var(--leading-heading);
  color: var(--color-primary);
}

.page-community .feedback-steps__label {
  display: block;
  font-size: var(--text-base);
  font-weight: 600;
  line-height: var(--leading-heading);
  color: var(--color-ink);
}

.page-community .feedback-steps__note {
  margin: var(--space-1) 0 0;
  font-size: var(--text-sm);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.page-community .feedback-channel {
  margin: var(--space-4) 0 0;
  padding-top: var(--space-3);
  border-top: var(--border-thin) solid var(--color-ink);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink);
}

.page-community .feedback-grid__media {
  margin: 0;
}

.page-community .feedback-grid__media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border-top: var(--border-thick) solid var(--color-primary);
}

.page-community .feedback-grid__cap {
  margin: var(--space-2) 0 0;
  font-size: var(--text-sm);
  line-height: var(--leading-body);
  color: var(--color-ink-muted);
}

/* ---------- 下一步 ---------- */
.page-community .community-next {
  padding-bottom: var(--space-8);
}

.page-community .community-next__title {
  margin: 0;
  font-size: var(--text-2xl);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink);
}

.page-community .next-list {
  margin: var(--space-4) 0 0;
  padding: 0;
  list-style: none;
  border-top: var(--border-thin) solid var(--color-line);
}

.page-community .next-list__item {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-1);
  padding: var(--space-3) 0;
  border-bottom: 1px dotted var(--color-line);
}

.page-community .next-list__link {
  position: relative;
  display: inline-block;
  justify-self: start;
  font-size: var(--text-lg);
  font-weight: 600;
  line-height: var(--leading-heading);
  color: var(--color-ink);
  text-decoration: none;
  transition: color 160ms ease-out;
}

.page-community .next-list__link::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -2px;
  height: 1px;
  background: var(--color-primary);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 180ms ease-out;
}

.page-community .next-list__link:hover,
.page-community .next-list__link:focus-visible {
  color: var(--color-primary);
}

.page-community .next-list__link:hover::after,
.page-community .next-list__link:focus-visible::after {
  transform: scaleX(1);
}

.page-community .next-list__text {
  margin: 0;
  max-width: var(--measure);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

/* ---------- 中等屏 ---------- */
@media (min-width: 700px) {
  .page-community .community-hero {
    padding-top: var(--space-8);
  }

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

  .page-community .community-stats__item {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-2);
    padding: var(--space-4) var(--space-3) var(--space-4) 0;
  }

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

  .page-community .index-strip {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-community .index-strip__item {
    padding-right: var(--space-3);
  }

  .page-community .index-strip__item:nth-child(3n) {
    padding-right: 0;
  }

  .page-community .index-strip__item:nth-child(3n + 1) {
    padding-left: 0;
  }

  .page-community .next-list__item {
    grid-template-columns: 220px minmax(0, 1fr);
    gap: var(--space-4);
    align-items: baseline;
  }
}

/* ---------- 宽屏 ---------- */
@media (min-width: 1024px) {
  .page-community .community-index__media {
    min-height: 380px;
  }

  .page-community .community-index__body {
    padding: var(--space-8) var(--space-6) var(--space-6);
  }

  .page-community .index-strip {
    grid-template-columns: repeat(6, minmax(0, 1fr));
    border-bottom: var(--border-thin) solid var(--color-contrast-line);
  }

  .page-community .index-strip__item {
    border-bottom: 0;
    border-right: var(--border-thin) solid var(--color-contrast-line);
    padding: 0 var(--space-2);
  }

  .page-community .index-strip__item:first-child {
    padding-left: 0;
  }

  .page-community .index-strip__item:last-child {
    padding-right: 0;
    border-right: 0;
  }

  .page-community .index-strip__link {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-2);
    padding: var(--space-4) 0;
  }

  .page-community .qa-group--contrast {
    padding: var(--space-6) var(--space-6) var(--space-2);
  }

  .page-community .rules-panel {
    padding: var(--space-6) 0;
  }

  .page-community .feedback-grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    gap: var(--space-8);
    align-items: start;
  }
}

/* ---------- 窄屏微调 ---------- */
@media (max-width: 640px) {
  .page-community .community-block {
    padding-top: var(--space-6);
  }

  .page-community .community-hero__title {
    max-width: 100%;
  }

  .page-community .community-stats__num--wide {
    font-size: var(--text-base);
  }

  .page-community .qa__q {
    padding-left: var(--space-4);
  }

  .page-community .rules-panel__title,
  .page-community .feedback-grid__title {
    max-width: 100%;
  }
}

/* ---------- 动效弱化 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-community,
  .page-community * {
    transition-duration: 1ms !important;
    animation-duration: 1ms !important;
  }

  .page-community {
    scroll-behavior: auto;
  }
}