.page-faq {
  --faq-ink: #D9E5DE;
  --faq-index-w: 274px;
  --faq-anchor-offset: 96px;
  display: block;
  padding-bottom: clamp(48px, 7vw, 96px);
}

/* ---------- 面包屑 ---------- */
.page-faq .faq-crumb {
  margin-bottom: clamp(20px, 3vw, 34px);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-intro {
  padding-bottom: clamp(28px, 4vw, 52px);
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .faq-intro__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 52px);
  align-items: center;
}

@media (min-width: 900px) {
  .page-faq .faq-intro__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: clamp(32px, 5vw, 72px);
  }
}

.page-faq .faq-intro__eyebrow {
  margin: 0;
  color: var(--c-orange);
}

.page-faq .faq-intro__title {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-size: clamp(30px, 5.2vw, 52px);
  font-weight: 900;
  line-height: 1.14;
  letter-spacing: -0.02em;
  color: var(--c-white);
}

.page-faq .faq-intro__lede {
  margin: 20px 0 0;
  max-width: 40em;
  font-size: clamp(16px, 1.7vw, 18px);
  line-height: 1.75;
  color: var(--faq-ink);
}

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

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

.page-faq .faq-intro__figure .figure__frame {
  overflow: hidden;
}

.page-faq .faq-intro__figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

/* ---------- 主体两栏 ---------- */
.page-faq .faq-body {
  margin-top: clamp(32px, 5vw, 64px);
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 4vw, 44px);
  align-items: start;
}

@media (min-width: 980px) {
  .page-faq .faq-body {
    grid-template-columns: var(--faq-index-w) minmax(0, 1fr);
    gap: clamp(40px, 5vw, 80px);
  }
}

/* ---------- 问题目录 ---------- */
.page-faq .faq-index {
  padding-top: 16px;
  border-top: 1px solid var(--line-soft);
}

@media (min-width: 980px) {
  .page-faq .faq-index {
    position: sticky;
    top: 24px;
    padding-top: 0;
    border-top: 0;
  }
}

.page-faq .faq-index__label {
  margin: 0;
  color: var(--c-muted);
}

.page-faq .faq-index__cats {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 14px 0 0;
  padding: 0;
  list-style: none;
}

@media (min-width: 980px) {
  .page-faq .faq-index__cats {
    display: none;
  }
}

.page-faq .faq-index__cats a {
  display: inline-block;
  min-height: 36px;
  padding: 8px 12px;
  border: 1px solid var(--line-soft);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--c-muted);
  text-decoration: none;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-faq .faq-index__cats a:hover,
.page-faq .faq-index__cats a:focus-visible {
  color: var(--c-orange);
  border-color: var(--c-orange);
}

.page-faq .faq-index__list {
  display: none;
}

@media (min-width: 980px) {
  .page-faq .faq-index__list {
    display: grid;
    gap: 20px;
    margin: 18px 0 0;
    padding: 0;
    list-style: none;
  }
}

.page-faq .faq-index__cat {
  display: block;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--line-softest);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--c-orange);
  text-decoration: none;
  transition: color var(--dur) var(--ease);
}

.page-faq .faq-index__cat:hover,
.page-faq .faq-index__cat:focus-visible {
  color: var(--c-orange-soft);
}

.page-faq .faq-index__sub {
  display: grid;
  gap: 8px;
  margin: 10px 0 0;
  padding: 0 0 0 12px;
  border-left: 1px solid var(--c-grid);
  list-style: none;
}

.page-faq .faq-index__sub a {
  display: block;
  font-size: 14px;
  line-height: 1.5;
  color: var(--c-muted);
  text-decoration: none;
  transition: color var(--dur) var(--ease);
}

.page-faq .faq-index__sub a:hover,
.page-faq .faq-index__sub a:focus-visible {
  color: var(--c-blue);
}

/* ---------- 答案区 ---------- */
.page-faq .faq-cat {
  padding-bottom: clamp(26px, 3.6vw, 46px);
  scroll-margin-top: var(--faq-anchor-offset);
}

.page-faq .faq-cat + .faq-cat {
  padding-top: clamp(26px, 3.6vw, 46px);
  border-top: 1px solid var(--line-soft);
}

.page-faq .faq-cat__head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin-bottom: 8px;
}

.page-faq .faq-cat__num {
  font-family: var(--font-mono);
  font-size: clamp(24px, 3vw, 34px);
  font-weight: 500;
  line-height: 1;
  letter-spacing: 0.04em;
  color: var(--c-orange);
}

.page-faq .faq-cat__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(20px, 2.6vw, 28px);
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--c-white);
}

/* ---------- 单条问答 ---------- */
.page-faq .faq-item {
  border-top: 1px solid var(--line-softest);
  scroll-margin-top: var(--faq-anchor-offset);
}

.page-faq .faq-cat__head + .faq-item {
  border-top: 0;
}

.page-faq .faq-item__q {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
  min-height: 48px;
  padding: 16px 0;
  list-style: none;
  cursor: pointer;
  font-size: clamp(16px, 1.5vw, 17px);
  font-weight: 500;
  line-height: 1.6;
  color: var(--c-white);
  transition: color var(--dur) var(--ease);
}

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

.page-faq .faq-item__q::marker {
  content: "";
}

.page-faq .faq-item__q:hover,
.page-faq .faq-item__q:focus-visible {
  color: var(--c-orange-soft);
}

.page-faq .faq-item__icon {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 20px;
  line-height: 1.3;
  color: var(--c-orange);
  transition: transform var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-faq .faq-item[open] .faq-item__icon {
  transform: rotate(45deg);
  color: var(--c-blue);
}

.page-faq .faq-item__a {
  padding: 0 0 20px;
}

.page-faq .faq-item__a p {
  margin: 0;
  max-width: 44em;
  font-size: 16px;
  line-height: 1.75;
  color: var(--faq-ink);
}

.page-faq .faq-item__a a {
  color: var(--c-blue);
  text-decoration: none;
  border-bottom: 1px solid rgba(61, 199, 255, 0.35);
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-faq .faq-item__a a:hover,
.page-faq .faq-item__a a:focus-visible {
  color: var(--c-orange-soft);
  border-bottom-color: var(--c-orange-soft);
}

.page-faq .faq-item__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  margin: 14px 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
}

.page-faq .faq-item__meta a {
  color: var(--c-blue);
  text-decoration: none;
  border-bottom: 1px solid rgba(61, 199, 255, 0.3);
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-faq .faq-item__meta a:hover,
.page-faq .faq-item__meta a:focus-visible {
  color: var(--c-orange-soft);
  border-bottom-color: var(--c-orange-soft);
}

/* ---------- 收尾 ---------- */
.page-faq .faq-outro {
  margin-top: clamp(40px, 6vw, 76px);
  padding-top: clamp(28px, 4vw, 48px);
  border-top: 1px solid var(--line-soft);
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 48px);
  align-items: center;
}

@media (min-width: 820px) {
  .page-faq .faq-outro {
    grid-template-columns: 168px minmax(0, 1fr);
    gap: clamp(28px, 4vw, 56px);
  }
}

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

.page-faq .faq-outro__figure .figure__frame {
  aspect-ratio: 1 / 1;
  overflow: hidden;
  border: 1px solid var(--line-soft);
}

.page-faq .faq-outro__figure img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-faq .faq-outro__eyebrow {
  margin: 0;
  color: var(--c-orange);
}

.page-faq .faq-outro__title {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-size: clamp(20px, 2.6vw, 27px);
  font-weight: 800;
  line-height: 1.35;
  letter-spacing: -0.01em;
  color: var(--c-white);
}

.page-faq .faq-outro__copy {
  margin: 14px 0 0;
  max-width: 44em;
  font-size: 16px;
  line-height: 1.75;
  color: var(--faq-ink);
}

.page-faq .faq-outro__btn {
  margin-top: 22px;
}

/* ---------- 动效降级 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item__icon,
  .page-faq .faq-item__q,
  .page-faq .faq-index a,
  .page-faq .faq-item__a a,
  .page-faq .faq-item__meta a {
    transition-duration: 0.01ms;
  }
}