.page-faq {
  --faq-rail-w: 236px;
  --faq-hl: rgba(240, 208, 138, 0.55);
  background: var(--white);
  color: var(--text);
}

/* ---------- 页头 ---------- */
.page-faq .faq-hero {
  padding: 18px 0 44px;
}

.page-faq .faq-hero__inner {
  display: grid;
  gap: 22px;
  padding-bottom: 28px;
}

.page-faq .faq-hero__title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(30px, 6.2vw, 62px);
  line-height: 1.08;
  letter-spacing: -0.02em;
  margin: 12px 0 0;
  color: var(--ink);
}

.page-faq .faq-hero__title em {
  display: block;
  font-style: normal;
  color: var(--gold);
}

.page-faq .faq-hero__lede {
  margin: 0;
  font-family: var(--font-body);
  font-size: 16.5px;
  line-height: 1.9;
  color: var(--text);
  max-width: 46ch;
}

.page-faq .faq-hero__facts {
  margin: 22px 0 0;
  padding: 16px 0 0;
  border-top: 1px solid var(--line);
  display: flex;
  flex-wrap: wrap;
  gap: 14px 30px;
}

.page-faq .faq-hero__fact {
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.page-faq .faq-hero__fact dt {
  font-family: var(--font-sans);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--stone);
}

.page-faq .faq-hero__fact dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 15px;
  letter-spacing: 0.04em;
  font-weight: 600;
  color: var(--ink);
}

.page-faq .faq-hero__figure {
  margin: 0;
}

/* ---------- 主体：索引栏 + 问答组 ---------- */
.page-faq .faq-body {
  padding: 8px 0 56px;
}

.page-faq .faq-body__grid {
  display: grid;
  gap: 30px;
}

.page-faq .faq-rail {
  border-top: 3px solid var(--gold);
  padding-top: 14px;
}

.page-faq .faq-rail__label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--stone);
}

.page-faq .faq-rail__list {
  list-style: none;
  margin: 12px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 4px 10px;
}

.page-faq .faq-rail__link {
  display: flex;
  align-items: baseline;
  gap: 9px;
  padding: 9px 10px;
  border-left: 2px solid transparent;
  color: var(--text);
  text-decoration: none;
  font-family: var(--font-sans);
  font-size: 14.5px;
  line-height: 1.5;
  transition: background-color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-faq .faq-rail__link:hover,
.page-faq .faq-rail__link:focus-visible {
  background: var(--paper);
  border-left-color: var(--gold);
}

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

/* ---------- 分组 ---------- */
.page-faq .faq-group {
  scroll-margin-top: 120px;
}

.page-faq .faq-group + .faq-group {
  margin-top: 42px;
  padding-top: 38px;
  border-top: 1px solid var(--line);
}

.page-faq .faq-group__head {
  margin-bottom: 20px;
}

.page-faq .faq-group__num {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--stone);
  border: 1px solid var(--line);
  padding: 3px 9px;
  margin-bottom: 12px;
}

.page-faq .faq-group__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(21px, 3.4vw, 30px);
  line-height: 1.28;
  letter-spacing: -0.01em;
  margin: 0 0 10px;
  color: var(--ink);
  transition: color 0.25s var(--ease);
}

.page-faq .faq-group:target .faq-group__title {
  color: var(--danxia);
}

.page-faq .faq-group__desc {
  margin: 0;
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.8;
  color: var(--stone);
  max-width: 60ch;
}

.page-faq .faq-group__layout {
  display: grid;
  gap: 22px;
}

.page-faq .faq-group__figure {
  margin: 0;
}

/* ---------- 可展开问答条目 ---------- */
.page-faq .faq-item {
  background: var(--white);
  border: 1px solid var(--line);
  border-left: 3px solid var(--gold);
  margin: 0 0 10px;
  transition: background-color 0.25s var(--ease), border-color 0.25s var(--ease);
}

.page-faq .faq-item:last-child {
  margin-bottom: 0;
}

.page-faq .faq-item[open] {
  background: var(--paper);
  border-left-color: var(--cinnabar);
}

.page-faq .faq-item__summary {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 15px 16px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-sans);
  font-size: 16px;
  font-weight: 600;
  line-height: 1.6;
  color: var(--ink);
  transition: color 0.2s var(--ease);
}

.page-faq .faq-item__summary::-webkit-details-marker {
  display: none;
}

.page-faq .faq-item__summary:hover {
  color: var(--danxia);
}

.page-faq .faq-item__mark {
  flex: 0 0 auto;
  width: 16px;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1.7;
  color: var(--gold);
  transition: color 0.2s var(--ease);
}

.page-faq .faq-item[open] .faq-item__mark {
  color: var(--cinnabar);
}

.page-faq .faq-item__text {
  flex: 1 1 auto;
  min-width: 0;
}

.page-faq .faq-item[open] .faq-item__text {
  font-weight: 700;
}

.page-faq .faq-item__body {
  padding: 0 16px 18px 44px;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.9;
  color: var(--text);
}

.page-faq .faq-item__body p {
  margin: 0 0 10px;
}

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

.page-faq .faq-item__body .hl {
  background: linear-gradient(transparent 60%, var(--faq-hl) 60%);
  padding: 0 1px;
}

.page-faq .faq-item__path {
  display: inline-block;
  margin-top: 12px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.04em;
  color: var(--danxia);
  text-decoration: none;
  border-bottom: 1px dashed var(--line);
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-faq .faq-item__path:hover,
.page-faq .faq-item__path:focus-visible {
  color: var(--cinnabar);
  border-bottom-color: var(--cinnabar);
}

/* ---------- 页尾入口带 ---------- */
.page-faq .faq-cta {
  position: relative;
  background: var(--ink);
  color: var(--paper);
  padding: 46px 0 52px;
  overflow: hidden;
}

.page-faq .faq-cta::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--gold), var(--danxia), var(--gold-light));
}

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

.page-faq .faq-cta__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(22px, 3.4vw, 32px);
  line-height: 1.3;
  letter-spacing: -0.01em;
  margin: 0 0 12px;
  color: var(--white);
}

.page-faq .faq-cta__text {
  margin: 0 0 18px;
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.85;
  color: rgba(247, 243, 234, 0.78);
  max-width: 46ch;
}

.page-faq .faq-cta__contact {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.04em;
  color: var(--gold-light);
}

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

.page-faq .faq-channel {
  display: block;
  padding: 18px 18px 20px;
  border: 1px solid rgba(240, 208, 138, 0.3);
  background: rgba(255, 255, 255, 0.04);
  text-decoration: none;
  transition: border-color 0.22s var(--ease), background-color 0.22s var(--ease), transform 0.22s var(--ease);
}

.page-faq .faq-channel:hover,
.page-faq .faq-channel:focus-visible {
  border-color: var(--gold-light);
  background: rgba(200, 145, 43, 0.16);
  transform: translateY(-2px);
}

.page-faq .faq-channel__label {
  display: block;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.14em;
  color: var(--gold-light);
  margin-bottom: 10px;
}

.page-faq .faq-channel__title {
  display: block;
  font-family: var(--font-sans);
  font-size: 17px;
  font-weight: 700;
  line-height: 1.45;
  color: var(--white);
  margin-bottom: 8px;
}

.page-faq .faq-channel__desc {
  display: block;
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 1.8;
  color: rgba(247, 243, 234, 0.72);
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-faq .faq-cta__cards {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__inner {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr);
    gap: 24px 48px;
    align-items: end;
    padding-bottom: 36px;
  }

  .page-faq .faq-hero__aside {
    padding-bottom: 6px;
  }

  .page-faq .faq-cta__inner {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
    gap: 48px;
    align-items: center;
  }
}

@media (min-width: 1000px) {
  .page-faq .faq-body {
    padding: 14px 0 72px;
  }

  .page-faq .faq-body__grid {
    grid-template-columns: var(--faq-rail-w) minmax(0, 1fr);
    gap: 52px;
    align-items: start;
  }

  .page-faq .faq-rail {
    position: sticky;
    top: 104px;
  }

  .page-faq .faq-rail__list {
    grid-template-columns: 1fr;
    gap: 2px;
  }

  .page-faq .faq-group__head {
    margin-bottom: 24px;
  }
}

@media (min-width: 1180px) {
  .page-faq .faq-group__layout {
    grid-template-columns: minmax(0, 1.72fr) minmax(0, 1fr);
    gap: 30px;
    align-items: start;
  }

  .page-faq .faq-group__figure {
    position: sticky;
    top: 104px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item,
  .page-faq .faq-channel,
  .page-faq .faq-item__mark,
  .page-faq .faq-group__title {
    transition: none;
  }

  .page-faq .faq-channel:hover,
  .page-faq .faq-channel:focus-visible {
    transform: none;
  }
}