.page-faq {
  --faq-line: rgba(142, 151, 163, .22);
  --faq-line-strong: rgba(142, 151, 163, .44);
  background: var(--ink-900);
  color: var(--paper);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  padding: clamp(24px, 3.5vw, 48px) 0 clamp(40px, 5vw, 72px);
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: clamp(28px, 4vw, 56px);
  margin-top: clamp(26px, 3.5vw, 48px);
  align-items: end;
}

.page-faq .faq-hero__lead .eyebrow {
  color: var(--cyan);
  letter-spacing: .22em;
}

.page-faq .faq-hero h1 {
  margin: 18px 0 0;
  font-family: var(--f-display);
  font-weight: 800;
  font-size: clamp(32px, 6.4vw, 64px);
  line-height: 1.06;
  letter-spacing: -.01em;
  max-width: 16em;
}

.page-faq .faq-hero__sub {
  margin: 22px 0 0;
  max-width: 42em;
  color: var(--txt-soft);
  font-size: clamp(15px, 1.1vw, 17px);
  line-height: 1.85;
}

.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 28px;
}

.page-faq .faq-hero__art {
  margin: 0;
  position: relative;
}

.page-faq .faq-hero__art img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  border: 1px solid var(--faq-line);
  filter: saturate(.9);
}

.page-faq .faq-hero__art::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(160deg, rgba(63, 224, 208, .16), transparent 46%, rgba(7, 12, 24, .62));
  pointer-events: none;
}

.page-faq .faq-hero__art figcaption {
  margin-top: 12px;
  color: var(--cool);
  font-size: 13px;
  line-height: 1.7;
  border-left: 2px solid var(--clay);
  padding-left: 12px;
}

/* ---------- 索引 ---------- */
.page-faq .faq-index {
  margin-top: clamp(36px, 5vw, 72px);
  border-top: 1px solid var(--faq-line-strong);
  border-bottom: 1px solid var(--faq-line-strong);
}

.page-faq .faq-index__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

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

.page-faq .faq-index__list li:nth-child(odd) {
  border-right: 1px solid var(--faq-line);
}

.page-faq .faq-index__list a {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 16px 14px;
  color: var(--txt-soft);
  text-decoration: none;
  font-size: 15px;
  transition: color .2s var(--ease), background-color .2s var(--ease);
}

.page-faq .faq-index__list a:hover,
.page-faq .faq-index__list a:focus-visible {
  color: var(--cyan);
  background: rgba(63, 224, 208, .06);
  outline: none;
}

.page-faq .faq-index__n {
  font-family: var(--f-mono);
  font-size: 13px;
  letter-spacing: .06em;
  color: var(--cyan);
}

/* ---------- 问答分块 ---------- */
.page-faq .faq-block {
  padding: clamp(48px, 6.5vw, 96px) 0;
  border-top: 1px solid var(--faq-line);
}

.page-faq .faq-block__head {
  display: grid;
  gap: 14px;
  margin-bottom: clamp(24px, 3vw, 40px);
}

.page-faq .faq-block__num {
  font-family: var(--f-mono);
  font-size: clamp(30px, 4vw, 46px);
  line-height: 1;
  color: var(--clay);
  letter-spacing: -.02em;
}

.page-faq .faq-block__head h2 {
  margin: 0;
  font-family: var(--f-display);
  font-size: clamp(24px, 3vw, 36px);
  font-weight: 700;
  line-height: 1.2;
}

.page-faq .faq-block__lead {
  margin: 12px 0 0;
  max-width: 46em;
  color: var(--txt-soft);
  font-size: 16px;
  line-height: 1.85;
}

/* ---------- 可展开问答组 ---------- */
.page-faq .acc {
  border-top: 1px solid var(--faq-line-strong);
}

.page-faq .acc__item {
  position: relative;
  border-bottom: 1px solid var(--faq-line);
  padding-left: 14px;
}

.page-faq .acc__item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--cyan);
  transform: scaleY(0);
  transform-origin: top;
  transition: transform .26s var(--ease);
}

.page-faq .acc__item:has([aria-expanded="true"])::before {
  transform: scaleY(1);
}

.page-faq .acc__head {
  margin: 0;
  font-size: inherit;
  font-weight: inherit;
}

.page-faq .acc__trigger {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 14px;
  align-items: start;
  width: 100%;
  padding: 20px 8px 20px 0;
  background: none;
  border: 0;
  color: inherit;
  font: inherit;
  text-align: left;
  cursor: pointer;
  transition: color .2s var(--ease), transform .2s var(--ease);
}

.page-faq .acc__trigger:hover,
.page-faq .acc__trigger:focus-visible {
  color: var(--cyan);
  transform: translateY(-2px);
  outline: none;
}

.page-faq .acc__idx {
  font-family: var(--f-mono);
  font-size: 13px;
  color: var(--cool);
  padding-top: 4px;
}

.page-faq .acc__q {
  font-size: clamp(16px, 1.4vw, 19px);
  line-height: 1.55;
  font-weight: 600;
}

.page-faq .acc__sign {
  position: relative;
  width: 16px;
  height: 16px;
  margin-top: 4px;
  flex: none;
}

.page-faq .acc__sign::before,
.page-faq .acc__sign::after {
  content: "";
  position: absolute;
  background: var(--cyan);
  transition: transform .24s var(--ease), opacity .24s var(--ease);
}

.page-faq .acc__sign::before {
  left: 0;
  right: 0;
  top: 7px;
  height: 1px;
}

.page-faq .acc__sign::after {
  top: 0;
  bottom: 0;
  left: 7px;
  width: 1px;
}

.page-faq .acc__item:has([aria-expanded="true"]) .acc__sign::after {
  transform: scaleY(0);
  opacity: 0;
}

.page-faq .acc__panel {
  overflow: hidden;
}

.page-faq .acc__panel-inner {
  padding: 0 8px 24px 0;
  max-width: 62em;
}

.page-faq .acc__panel-inner p {
  margin: 0;
  color: var(--txt-soft);
  font-size: 16px;
  line-height: 1.9;
}

/* ---------- 两步路径 ---------- */
.page-faq .faq-path {
  margin-bottom: clamp(32px, 4vw, 56px);
  border: 1px solid var(--faq-line-strong);
  background: var(--ink-700);
}

.page-faq .faq-path__steps {
  display: grid;
  gap: 0;
}

.page-faq .faq-path__step {
  padding: 26px 22px;
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .faq-path__n {
  display: inline-block;
  font-family: var(--f-mono);
  font-size: 40px;
  line-height: 1;
  color: var(--orange);
  letter-spacing: -.04em;
}

.page-faq .faq-path__step h3 {
  margin: 14px 0 0;
  font-family: var(--f-display);
  font-size: 20px;
  font-weight: 700;
}

.page-faq .faq-path__step p {
  margin: 10px 0 0;
  color: var(--txt-soft);
  font-size: 15.5px;
  line-height: 1.85;
}

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

.page-faq .faq-path__fig img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 12 / 7;
  object-fit: cover;
}

.page-faq .faq-path__fig figcaption {
  padding: 14px 22px;
  color: var(--cool);
  font-size: 13px;
  line-height: 1.7;
  border-top: 1px solid var(--faq-line);
}

/* ---------- 联系客服 ---------- */
.page-faq .faq-block--contact {
  border-top: 1px solid var(--faq-line);
}

.page-faq .faq-contact {
  background: var(--paper);
  color: var(--ink-900);
  padding: clamp(28px, 4vw, 56px);
  display: grid;
  gap: clamp(26px, 3.5vw, 48px);
}

.page-faq .eyebrow--dark {
  color: var(--clay);
  letter-spacing: .22em;
}

.page-faq .faq-contact__intro h2 {
  margin: 16px 0 0;
  font-family: var(--f-display);
  font-size: clamp(24px, 3.2vw, 38px);
  font-weight: 700;
  line-height: 1.16;
  color: var(--ink-900);
}

.page-faq .faq-contact__intro p {
  margin: 16px 0 0;
  max-width: 40em;
  font-size: 16px;
  line-height: 1.85;
  color: var(--ink-600);
}

.page-faq .faq-contact__note {
  padding-top: 14px;
  border-top: 1px solid rgba(16, 26, 46, .16);
  font-size: 14.5px !important;
  color: var(--rock) !important;
}

.page-faq .faq-contact__list {
  margin: 0;
  border-top: 1px solid rgba(16, 26, 46, .16);
}

.page-faq .faq-contact__row {
  display: grid;
  grid-template-columns: minmax(0, 5.5em) minmax(0, 1fr);
  gap: 12px;
  padding: 14px 0;
  border-bottom: 1px solid rgba(16, 26, 46, .12);
}

.page-faq .faq-contact__row dt {
  font-family: var(--f-mono);
  font-size: 12.5px;
  letter-spacing: .04em;
  color: var(--clay);
  padding-top: 3px;
}

.page-faq .faq-contact__row dd {
  margin: 0;
  font-size: 16px;
  line-height: 1.6;
  font-weight: 600;
  color: var(--ink-900);
  overflow-wrap: anywhere;
}

.page-faq .faq-contact__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  align-self: start;
}

.page-faq .btn--ghost-dark {
  border-color: rgba(16, 26, 46, .4);
  color: var(--ink-700);
}

.page-faq .btn--ghost-dark:hover,
.page-faq .btn--ghost-dark:focus-visible {
  border-color: var(--ink-900);
  color: var(--ink-900);
}

.page-faq .faq-contact__tail {
  margin: 26px 0 0;
  color: var(--txt-soft);
  font-size: 15px;
  line-height: 1.85;
}

.page-faq .faq-contact__tail a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(63, 224, 208, .45);
  transition: border-color .2s var(--ease), color .2s var(--ease);
}

.page-faq .faq-contact__tail a:hover,
.page-faq .faq-contact__tail a:focus-visible {
  color: var(--paper);
  border-bottom-color: var(--paper);
  outline: none;
}

/* ---------- 响应式 ---------- */
@media (min-width: 760px) {
  .page-faq .faq-block__head {
    grid-template-columns: 86px minmax(0, 1fr);
    gap: 28px;
    align-items: start;
  }

  .page-faq .faq-block__num {
    padding-top: 6px;
    text-align: right;
  }

  .page-faq .faq-index__list {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }

  .page-faq .faq-index__list li {
    border-bottom: 0;
  }

  .page-faq .faq-index__list li + li {
    border-left: 1px solid var(--faq-line);
  }

  .page-faq .faq-index__list li:nth-child(odd) {
    border-right: 0;
  }

  .page-faq .faq-path__steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .faq-path__step:first-child {
    border-right: 1px solid var(--faq-line);
    border-bottom: 0;
  }

  .page-faq .faq-path__step:last-child {
    border-bottom: 0;
  }

  .page-faq .faq-contact {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    align-items: start;
  }

  .page-faq .faq-contact__actions {
    grid-column: 1 / -1;
  }
}

@media (min-width: 1024px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  }

  .page-faq .acc__trigger {
    padding: 22px 8px 22px 0;
  }

  .page-faq .acc__q {
    font-size: 20px;
  }

  .page-faq .acc__panel-inner {
    padding-bottom: 28px;
    padding-left: 34px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .acc__item::before,
  .page-faq .acc__trigger,
  .page-faq .acc__sign::before,
  .page-faq .acc__sign::after {
    transition: none;
  }
}
<<<END>>>