.page-faq {
  --faq-muted: #52616f;
  --faq-line: var(--c-rule);
  background: var(--c-paper);
  color: var(--c-ink-900);
  overflow-x: hidden;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  isolation: isolate;
  padding-block: clamp(16px, 3vw, 26px) clamp(38px, 6vw, 74px);
  color: var(--c-paper);
  background:
    radial-gradient(110% 90% at 88% -12%, rgba(245, 166, 35, .20), transparent 58%),
    radial-gradient(78% 68% at 0% 106%, rgba(111, 174, 154, .16), transparent 62%),
    var(--c-ink-900);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(185, 201, 214, .075) 1px, transparent 1px),
    linear-gradient(90deg, rgba(185, 201, 214, .075) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, .95), transparent 88%);
}

.page-faq .breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 12.5px;
  letter-spacing: .04em;
  color: var(--c-mist);
}

.page-faq .breadcrumbs a {
  color: var(--c-mist);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}

.page-faq .breadcrumbs a:hover,
.page-faq .breadcrumbs a:focus-visible {
  color: var(--c-gold-glow);
  border-bottom-color: var(--c-gold);
}

.page-faq .breadcrumbs__sep {
  color: rgba(185, 201, 214, .55);
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: clamp(24px, 4vw, 46px);
  margin-top: clamp(20px, 3.6vw, 34px);
}

.page-faq .faq-hero__title {
  margin: 12px 0 0;
  font-family: var(--font-cn);
  font-weight: 900;
  font-size: clamp(28px, 5.4vw, 58px);
  line-height: 1.1;
  letter-spacing: -.02em;
  max-width: 15em;
}

.page-faq .faq-hero__lede {
  margin: clamp(16px, 2.4vw, 22px) 0 0;
  max-width: 34em;
  font-size: clamp(15px, 1.8vw, 17px);
  line-height: 1.78;
  color: rgba(247, 244, 236, .82);
}

.page-faq .faq-hero__figure {
  position: relative;
  margin: 0;
  border-radius: var(--radius-organic);
  overflow: hidden;
  border: 1px solid var(--line-dark-strong);
  background: var(--c-ink-800);
}

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

.page-faq .faq-hero__coord,
.page-faq .faq-coverage__coord {
  position: absolute;
  left: 14px;
  bottom: 12px;
  margin: 0;
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--c-mist);
  background: rgba(7, 20, 38, .74);
  padding: 4px 9px;
  border-radius: 999px;
  border: 1px solid var(--line-dark);
}

/* ---------- 三步轨道 ---------- */
.page-faq .faq-steps {
  list-style: none;
  margin: clamp(28px, 4vw, 46px) 0 0;
  padding: 0 0 10px;
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(244px, 82%);
  gap: 12px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scrollbar-width: thin;
}

.page-faq .faq-step {
  display: flex;
}

.page-faq .faq-step__link {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 12px;
  align-items: start;
  width: 100%;
  padding: 18px 18px 20px;
  scroll-snap-align: start;
  text-decoration: none;
  color: var(--c-paper);
  background: var(--c-ink-800);
  border: 1px solid var(--line-dark);
  border-radius: var(--radius-m);
  transition: border-color var(--dur) var(--ease), transform var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-faq .faq-step__link:hover,
.page-faq .faq-step__link:focus-visible {
  border-color: var(--c-gold);
  background: var(--c-ink-700);
  transform: translateY(-3px);
}

.page-faq .faq-step__num {
  font-family: var(--font-en);
  font-weight: 300;
  font-size: 22px;
  line-height: 1.2;
  letter-spacing: .05em;
  color: var(--c-gold);
}

.page-faq .faq-step__title {
  display: block;
  font-size: 16px;
  font-weight: 700;
  letter-spacing: .01em;
}

.page-faq .faq-step__text {
  display: block;
  margin-top: 6px;
  font-size: 13.5px;
  line-height: 1.68;
  color: var(--c-mist);
}

.page-faq .faq-step__arrow {
  color: var(--c-gold-glow);
  font-size: 16px;
  line-height: 1.4;
}

/* ---------- 覆盖区域 ---------- */
.page-faq .faq-coverage__grid {
  display: grid;
  gap: clamp(26px, 4vw, 52px);
}

.page-faq .faq-coverage__main .prose {
  margin-top: clamp(16px, 2.4vw, 22px);
  color: var(--faq-muted);
  line-height: 1.8;
}

.page-faq .faq-terms {
  list-style: none;
  margin: clamp(20px, 3vw, 30px) 0 0;
  padding: 0;
}

.page-faq .faq-terms li {
  display: grid;
  gap: 8px;
  padding: 16px 0;
  border-top: 1px solid var(--faq-line);
}

.page-faq .faq-terms li:last-child {
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .faq-terms__head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  font-size: 15.5px;
  color: var(--c-ink-900);
}

.page-faq .faq-terms__text {
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--faq-muted);
}

.page-faq .faq-cities__label {
  margin: clamp(22px, 3vw, 30px) 0 0;
  font-size: 11.5px;
  letter-spacing: .18em;
  color: var(--c-celadon-deep);
}

.page-faq .faq-cities {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 12px 0 0;
  padding: 0;
}

.page-faq .faq-cities li {
  padding: 5px 11px;
  font-size: 12.5px;
  line-height: 1.4;
  color: var(--faq-muted);
  border: 1px solid var(--faq-line);
  border-radius: 999px;
}

.page-faq .faq-coverage__figure {
  position: relative;
  margin: 0;
  border-radius: var(--radius-l);
  overflow: hidden;
  border: 1px solid var(--line-dark);
  background: var(--c-ink-800);
}

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

/* ---------- 清单项目 ---------- */
.page-faq .faq-projects__lede {
  margin-top: clamp(14px, 2.2vw, 20px);
  max-width: 60em;
  color: var(--faq-muted);
  line-height: 1.78;
}

.page-faq .faq-cats {
  list-style: none;
  margin: clamp(24px, 3.6vw, 38px) 0 0;
  padding: 0;
  display: grid;
  gap: 14px;
  grid-template-columns: minmax(0, 1fr);
}

.page-faq .faq-cat {
  display: flex;
  flex-direction: column;
  gap: 9px;
  padding: 22px 20px 24px;
  background: var(--c-paper);
  border: 1px solid var(--faq-line);
  border-radius: var(--radius-m);
  transition: border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-faq .faq-cat--organic {
  border-radius: var(--radius-organic);
}

.page-faq .faq-cat:hover {
  border-color: var(--c-celadon);
  box-shadow: var(--shadow-soft);
  transform: translateY(-2px);
}

.page-faq .faq-cat__idx {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .14em;
  color: var(--c-celadon-deep);
}

.page-faq .faq-cat__title {
  margin: 0;
  font-family: var(--font-cn);
  font-size: 19px;
  font-weight: 700;
  line-height: 1.35;
  letter-spacing: -.01em;
  color: var(--c-ink-900);
}

.page-faq .faq-cat__text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--faq-muted);
}

.page-faq .faq-cat__hint {
  margin-top: auto;
  padding-top: 10px;
  font-size: 12.5px;
  letter-spacing: .02em;
  color: var(--c-celadon-deep);
  border-top: 1px dashed var(--faq-line);
}

.page-faq .faq-projects__more {
  margin: clamp(20px, 3vw, 28px) 0 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--faq-muted);
}

.page-faq .faq-link {
  color: var(--c-ink-900);
  font-weight: 700;
  text-decoration: none;
  border-bottom: 2px solid var(--c-gold);
  padding-bottom: 1px;
}

.page-faq .faq-link:hover,
.page-faq .faq-link:focus-visible {
  color: var(--c-celadon-deep);
  border-bottom-color: var(--c-celadon-deep);
}

/* ---------- 问题手风琴 ---------- */
.page-faq .faq-questions__grid {
  display: grid;
  gap: clamp(24px, 3.6vw, 44px);
}

.page-faq .faq-questions__note {
  margin: clamp(14px, 2.2vw, 18px) 0 20px;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--faq-muted);
  max-width: 30em;
}

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

.page-faq .faq-item {
  border-bottom: 1px solid var(--faq-line);
  border-radius: 0 var(--radius-s) var(--radius-s) 0;
  transition: background var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.page-faq .faq-item[open] {
  background: rgba(111, 174, 154, .09);
  box-shadow: inset 3px 0 0 var(--c-celadon);
}

.page-faq .faq-q {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 12px;
  align-items: baseline;
  padding: 17px 16px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-cn);
  font-size: clamp(15px, 2.1vw, 17px);
  font-weight: 700;
  line-height: 1.5;
  color: var(--c-ink-900);
}

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

.page-faq .faq-q::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-en);
  font-size: 21px;
  font-weight: 400;
  line-height: 1;
  color: var(--c-celadon-deep);
  transition: color var(--dur) var(--ease);
}

.page-faq .faq-item[open] .faq-q::after {
  content: "–";
  color: var(--c-gold);
}

.page-faq .faq-q:focus-visible {
  outline: 2px solid var(--c-gold);
  outline-offset: -2px;
}

.page-faq .faq-q__n {
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 400;
  letter-spacing: .1em;
  color: var(--c-celadon-deep);
}

.page-faq .faq-item[open] .faq-q__n {
  color: var(--c-gold);
}

.page-faq .faq-a {
  padding: 0 18px 20px 52px;
  font-size: 14.5px;
  line-height: 1.82;
  color: var(--faq-muted);
}

/* ---------- 联系 ---------- */
.page-faq .faq-contact {
  position: relative;
  padding-block: clamp(44px, 7vw, 84px);
  color: var(--c-paper);
  background:
    radial-gradient(90% 80% at 100% 0%, rgba(245, 166, 35, .17), transparent 56%),
    radial-gradient(70% 70% at 0% 100%, rgba(111, 174, 154, .14), transparent 62%),
    var(--c-ink-800);
}

.page-faq .eyebrow--on-dark {
  color: var(--c-gold-glow);
}

.page-faq .faq-contact__grid {
  display: grid;
  gap: clamp(26px, 4vw, 52px);
}

.page-faq .faq-contact__title {
  margin: 12px 0 0;
  font-family: var(--font-cn);
  font-weight: 900;
  font-size: clamp(26px, 4.2vw, 44px);
  line-height: 1.18;
  letter-spacing: -.02em;
  color: var(--c-paper);
}

.page-faq .faq-contact__text {
  margin: clamp(14px, 2.2vw, 20px) 0 0;
  max-width: 32em;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(247, 244, 236, .82);
}

.page-faq .faq-contact__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(20px, 3vw, 28px);
}

.page-faq .faq-contact__list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-faq .faq-contact__item {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 4px 14px;
  padding: 15px 0;
  border-top: 1px solid var(--line-dark);
}

.page-faq .faq-contact__item:last-child {
  border-bottom: 1px solid var(--line-dark);
}

.page-faq .faq-contact__key {
  grid-column: 1 / -1;
  font-size: 11.5px;
  letter-spacing: .16em;
  color: var(--c-mist);
}

.page-faq .faq-contact__val {
  font-size: 15.5px;
  line-height: 1.6;
  color: var(--c-paper);
  overflow-wrap: anywhere;
}

.page-faq .faq-contact__val.mono {
  font-family: var(--font-mono);
  letter-spacing: .01em;
}

.page-faq .faq-contact__act {
  justify-self: end;
}

/* ---------- 响应式 ---------- */
@media (min-width: 680px) {
  .page-faq .faq-cats {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, .88fr);
    align-items: end;
  }

  .page-faq .faq-steps {
    grid-auto-flow: row;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    grid-auto-columns: auto;
    overflow: visible;
    gap: 16px;
  }

  .page-faq .faq-coverage__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .78fr);
    align-items: start;
  }

  .page-faq .faq-questions__grid {
    grid-template-columns: minmax(0, .72fr) minmax(0, 1.28fr);
    align-items: start;
  }

  .page-faq .faq-questions__aside {
    position: sticky;
    top: calc(var(--header-h) + 26px);
  }

  .page-faq .faq-a {
    padding-left: 60px;
  }

  .page-faq .faq-contact__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, .92fr);
    align-items: start;
  }
}

@media (min-width: 1040px) {
  .page-faq .faq-cats {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-step__link,
  .page-faq .faq-cat,
  .page-faq .faq-item,
  .page-faq .faq-q::after {
    transition: none;
  }

  .page-faq .faq-step__link:hover,
  .page-faq .faq-cat:hover {
    transform: none;
  }

  .page-faq .faq-steps {
    scroll-snap-type: none;
  }
}
<<<END>>>