.page-faq {
  --faq-row-line: var(--line);
  background: var(--bg);
  color: var(--fg);
}

.page-faq .crumbs {
  padding: 20px 0 0;
  font-size: 13px;
}

.page-faq .crumbs-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .crumbs-list li + li::before {
  content: "/";
  margin-right: 8px;
  color: var(--steel);
}

.page-faq .crumbs-link {
  color: var(--fg-muted);
  text-decoration: none;
}

.page-faq .crumbs-link:hover,
.page-faq .crumbs-link:focus-visible {
  color: var(--accent-ink);
}

.page-faq .crumbs-current {
  color: var(--ink);
  font-weight: 700;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  padding-top: 28px;
}

.page-faq .faq-hero-grid {
  display: grid;
  gap: 28px;
}

.page-faq .faq-title {
  margin: 12px 0 0;
  font-size: clamp(30px, 6.4vw, 50px);
  line-height: 1.14;
  letter-spacing: 0.04em;
  font-weight: 900;
  color: var(--ink);
}

.page-faq .faq-hero-copy .lead {
  margin: 16px 0 0;
  max-width: 56ch;
  color: var(--fg-muted);
  font-size: 16px;
  line-height: 1.75;
}

.page-faq .faq-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.page-faq .faq-figures {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  margin: 32px 0 0;
  padding: 0;
  list-style: none;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-faq .faq-figures li {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 14px 16px;
  background: var(--surface);
}

.page-faq .faq-fig-num {
  font-size: 28px;
  font-weight: 900;
  line-height: 1.1;
  color: var(--ink);
}

.page-faq .faq-fig-label {
  font-size: 13px;
  line-height: 1.55;
  color: var(--fg-muted);
}

.page-faq .faq-hero-media {
  margin: 0;
  border: 1px solid var(--border-strong);
  background: var(--ink);
  overflow: hidden;
}

.page-faq .faq-hero-media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1 / 1;
  object-fit: cover;
}

.page-faq .media-caption {
  padding: 10px 14px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--steel);
  background: var(--surface);
  border-top: 1px solid var(--line);
}

/* ---------- 分组索引 ---------- */
.page-faq .faq-index {
  background: var(--ink);
  border-top: 1px solid var(--ink-2);
  border-bottom: 1px solid var(--ink-2);
  color: var(--paper);
  scroll-margin-top: calc(var(--header-h) + 16px);
}

.page-faq .faq-index .eyebrow {
  color: var(--gold);
}

.page-faq .faq-index .section-title {
  color: var(--paper);
}

.page-faq .faq-index-head {
  display: grid;
  gap: 12px;
}

.page-faq .faq-index-note {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: rgba(245, 241, 230, 0.72);
}

.page-faq .faq-index-grid {
  display: grid;
  gap: 24px;
  margin-top: 24px;
}

.page-faq .faq-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-faq .faq-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  border: 1px solid rgba(198, 163, 74, 0.45);
  border-radius: 2px;
  background: rgba(198, 163, 74, 0.07);
  color: var(--gold-soft);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-decoration: none;
  transition: background 160ms var(--ease), border-color 160ms var(--ease), color 160ms var(--ease);
}

.page-faq .faq-chip .mono {
  color: var(--gold);
  font-size: 12px;
  letter-spacing: 0.08em;
}

.page-faq .faq-chip:hover,
.page-faq .faq-chip:focus-visible {
  border-color: var(--gold);
  background: rgba(198, 163, 74, 0.18);
  color: #ffffff;
}

.page-faq .faq-index-tip {
  margin: 16px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: rgba(245, 241, 230, 0.6);
}

.page-faq .faq-index-media {
  margin: 0;
  border: 1px solid rgba(198, 163, 74, 0.32);
  background: var(--ink-2);
  overflow: hidden;
}

.page-faq .faq-index-media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.page-faq .faq-index-media .media-caption {
  background: transparent;
  color: var(--gold-soft);
  border-top: 1px solid rgba(198, 163, 74, 0.22);
}

/* ---------- 问答分组 ---------- */
.page-faq .faq-group {
  padding-top: 48px;
  padding-bottom: 48px;
  border-top: 1px solid var(--line);
  scroll-margin-top: calc(var(--header-h) + 16px);
}

.page-faq .faq-group-grid {
  display: grid;
  gap: 20px;
}

.page-faq .faq-group-num {
  margin: 0;
  color: var(--accent-ink);
  font-size: 13px;
}

.page-faq .faq-group-title {
  margin: 6px 0 0;
  font-size: clamp(24px, 4.6vw, 34px);
  font-weight: 900;
  letter-spacing: 0.06em;
  line-height: 1.2;
  color: var(--ink);
}

.page-faq .faq-group-note {
  margin: 10px 0 0;
  max-width: 34ch;
  font-size: 14px;
  line-height: 1.7;
  color: var(--fg-muted);
}

.page-faq .qa {
  border-top: 1px solid var(--faq-row-line);
}

.page-faq .qa-h {
  margin: 0;
}

.page-faq .qa-item {
  position: relative;
  border-bottom: 1px solid var(--faq-row-line);
}

.page-faq .qa-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 19px;
  width: 6px;
  height: 14px;
  background: var(--gold);
  opacity: 0;
  transition: opacity 160ms var(--ease);
}

.page-faq .qa-item.is-open::before {
  opacity: 1;
}

.page-faq .qa-q {
  display: block;
  width: 100%;
  margin: 0;
  padding: 16px 40px 16px 18px;
  border: 0;
  background: none;
  font: inherit;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.5;
  text-align: left;
  color: var(--ink);
  cursor: pointer;
  position: relative;
  transition: color 140ms var(--ease);
}

.page-faq .qa-q::after {
  content: "+";
  position: absolute;
  right: 14px;
  top: 50%;
  transform: translateY(-50%);
  font-family: "JetBrains Mono", "IBM Plex Mono", ui-monospace, monospace;
  font-size: 18px;
  font-weight: 400;
  color: var(--steel);
}

.page-faq .qa-item.is-open .qa-q {
  color: var(--accent-ink);
}

.page-faq .qa-item.is-open .qa-q::after {
  content: "–";
  color: var(--accent-ink);
}

.page-faq .qa-q:hover {
  color: var(--accent-ink);
}

.page-faq .qa-a {
  padding: 0 18px 18px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--fg-muted);
}

.page-faq .qa-a[hidden] {
  display: none;
}

.page-faq .qa-a p {
  margin: 0 0 0.65em;
}

.page-faq .qa-a p:last-child {
  margin-bottom: 0;
}

.page-faq .qa-a a {
  color: var(--accent-ink);
  text-decoration: none;
  border-bottom: 1px solid rgba(198, 163, 74, 0.55);
}

.page-faq .qa-a a:hover,
.page-faq .qa-a a:focus-visible {
  border-bottom-color: var(--accent-ink);
}

.page-faq .faq-more {
  margin: 18px 0 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--fg-muted);
}

.page-faq .faq-more a {
  color: var(--accent-ink);
  font-weight: 700;
  text-decoration: none;
  border-bottom: 1px solid rgba(198, 163, 74, 0.55);
  transition: border-color 140ms var(--ease);
}

.page-faq .faq-more a:hover,
.page-faq .faq-more a:focus-visible {
  border-bottom-color: var(--accent-ink);
}

/* ---------- 兜底区块 ---------- */
.page-faq .faq-help {
  padding-top: 40px;
  padding-bottom: 72px;
  scroll-margin-top: calc(var(--header-h) + 16px);
}

.page-faq .faq-help-card {
  display: grid;
  gap: 28px;
  padding: 36px 22px;
  border: 1px solid var(--ink-2);
  border-radius: 2px;
  background:
    radial-gradient(120% 160% at 100% 0%, rgba(79, 209, 177, 0.14) 0%, rgba(79, 209, 177, 0) 46%),
    linear-gradient(142deg, var(--ink) 0%, var(--ink-2) 58%, #17453c 100%);
  color: var(--paper);
}

.page-faq .faq-help-copy .eyebrow--light {
  color: var(--gold);
}

.page-faq .faq-help-title {
  margin: 10px 0 0;
  font-size: clamp(24px, 5vw, 36px);
  font-weight: 900;
  letter-spacing: 0.05em;
  line-height: 1.22;
  color: var(--paper);
}

.page-faq .faq-help-lead {
  margin: 14px 0 0;
  max-width: 52ch;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(245, 241, 230, 0.78);
}

.page-faq .faq-help-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-faq .faq-help-actions .btn--ghost {
  color: var(--gold-soft);
  border-color: rgba(198, 163, 74, 0.5);
}

.page-faq .faq-help-actions .btn--ghost:hover,
.page-faq .faq-help-actions .btn--ghost:focus-visible {
  border-color: var(--gold);
  color: #ffffff;
}

.page-faq .faq-help-side-title {
  margin: 0 0 12px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--gold);
}

.page-faq .faq-help-list {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid rgba(198, 163, 74, 0.25);
}

.page-faq .faq-help-list li {
  display: grid;
  gap: 4px;
  padding: 12px 0;
  border-bottom: 1px solid rgba(198, 163, 74, 0.25);
}

.page-faq .faq-help-label {
  font-size: 12px;
  letter-spacing: 0.12em;
  color: rgba(245, 241, 230, 0.6);
}

.page-faq .faq-help-value {
  font-size: 15px;
  color: var(--paper);
  word-break: break-word;
}

.page-faq .faq-help-side-note {
  margin: 16px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: rgba(245, 241, 230, 0.68);
}

.page-faq .faq-help-side-note a {
  color: var(--gold-soft);
  text-decoration: none;
  border-bottom: 1px solid rgba(198, 163, 74, 0.5);
}

.page-faq .faq-help-side-note a:hover,
.page-faq .faq-help-side-note a:focus-visible {
  color: #ffffff;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-faq .faq-figures {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-faq .faq-help-card {
    padding: 44px 34px;
  }
}

@media (min-width: 900px) {
  .page-faq .crumbs {
    padding-top: 24px;
  }

  .page-faq .faq-hero {
    padding-top: 40px;
  }

  .page-faq .faq-hero-grid {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
    gap: 48px;
    align-items: end;
  }

  .page-faq .faq-index-head {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    align-items: end;
    gap: 32px;
  }

  .page-faq .faq-index-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.86fr);
    align-items: center;
    gap: 40px;
  }

  .page-faq .faq-group {
    padding-top: 64px;
    padding-bottom: 64px;
  }

  .page-faq .faq-group-grid {
    grid-template-columns: 240px minmax(0, 1fr);
    gap: 48px;
    align-items: start;
  }

  .page-faq .faq-group-head {
    position: sticky;
    top: calc(var(--header-h) + 24px);
  }

  .page-faq .faq-help {
    padding-bottom: 96px;
  }

  .page-faq .faq-help-card {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    gap: 56px;
    align-items: start;
    padding: 64px 56px;
  }
}

@media (min-width: 1180px) {
  .page-faq .faq-group-grid {
    grid-template-columns: 280px minmax(0, 1fr);
    gap: 64px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-chip,
  .page-faq .qa-item::before,
  .page-faq .qa-q,
  .page-faq .faq-more a {
    transition: none;
  }
}