.page-faq {
  --faq-line: rgba(140, 109, 31, 0.42);
  --faq-line-soft: rgba(140, 109, 31, 0.26);
  --faq-item-bg: #16171B;
  --faq-item-bg-open: #1C1D22;

  display: block;
  background:
    radial-gradient(900px 420px at 88% -6%, rgba(201, 162, 39, 0.12), transparent 62%),
    radial-gradient(760px 520px at 2% 34%, rgba(142, 43, 51, 0.09), transparent 60%),
    var(--ink);
  color: var(--cream);
  padding-bottom: clamp(56px, 7vw, 96px);
}

/* ---------- 首屏 ---------- */

.page-faq .faq-hero {
  padding: clamp(28px, 4.5vw, 56px) 0 clamp(36px, 5vw, 68px);
}

.page-faq .faq-hero .breadcrumb {
  margin-bottom: clamp(24px, 3.4vw, 40px);
}

.page-faq .faq-hero-inner {
  max-width: 940px;
}

.page-faq .faq-kicker {
  margin: 0 0 18px;
  font-family: var(--font-mono);
  font-size: var(--step-1);
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--gold);
}

.page-faq h1 {
  margin: 0 0 22px;
  max-width: 15em;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(33px, 6.2vw, var(--step6));
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: var(--paper);
}

.page-faq .faq-lead {
  margin: 0 0 clamp(26px, 3.4vw, 38px);
  max-width: 66ch;
  font-size: var(--step1);
  line-height: 1.76;
  color: var(--gold-light);
}

.page-faq .faq-hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-meta-item {
  padding: 7px 15px;
  border: 1px solid var(--gold-deep);
  background: rgba(26, 27, 31, 0.72);
  font-family: var(--font-mono);
  font-size: var(--step-1);
  letter-spacing: 0.04em;
  color: var(--gold-light);
}

.page-faq .faq-hero-figure {
  margin: clamp(34px, 4.6vw, 60px) 0 0;
}

.page-faq .faq-hero-figure .figure-frame {
  overflow: hidden;
}

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

/* ---------- 分类索引条 ---------- */

.page-faq .faq-index {
  position: sticky;
  top: calc(var(--header-h) - 1px);
  z-index: 5;
  border-top: 1px solid var(--faq-line);
  border-bottom: 1px solid var(--faq-line);
  background: rgba(14, 14, 16, 0.95);
  backdrop-filter: blur(8px);
  padding: 10px 0;
}

.page-faq .faq-index-list {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}

.page-faq .faq-index-list::-webkit-scrollbar {
  display: none;
}

.page-faq .faq-chip {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 9px 16px;
  border: 1px solid var(--graphite);
  background: var(--charcoal);
  color: var(--cream);
  text-decoration: none;
  font-size: var(--step-1);
  line-height: 1.3;
  white-space: nowrap;
  transition: border-color 0.18s var(--ease), background 0.18s var(--ease), color 0.18s var(--ease);
}

.page-faq .faq-chip-num {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--gold);
}

.page-faq .faq-chip:hover,
.page-faq .faq-chip:focus-visible {
  border-color: var(--gold);
  background: rgba(201, 162, 39, 0.09);
  color: var(--paper);
}

.page-faq .faq-chip.is-active {
  border-color: var(--gold);
  background: rgba(201, 162, 39, 0.13);
  color: var(--paper);
}

.page-faq .faq-chip.is-active .faq-chip-num {
  color: var(--gold-light);
}

/* ---------- 分组 ---------- */

.page-faq .faq-groups {
  padding-top: clamp(34px, 4.6vw, 64px);
}

.page-faq .faq-group {
  padding: clamp(34px, 4.6vw, 68px) 0;
  border-top: 1px solid var(--faq-line-soft);
}

.page-faq .faq-group:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-faq .faq-group-head {
  display: grid;
  gap: 14px;
  margin-bottom: clamp(22px, 3vw, 34px);
}

.page-faq .faq-group-num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(44px, 7.6vw, 74px);
  line-height: 0.88;
  letter-spacing: -0.03em;
  color: var(--gold);
}

.page-faq .faq-group-icon {
  display: block;
  width: 34px;
  height: 34px;
  color: var(--gold-old);
}

.page-faq .faq-group-icon svg {
  display: block;
  width: 100%;
  height: 100%;
}

.page-faq .faq-group-title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(23px, 3vw, var(--step2));
  line-height: 1.2;
  letter-spacing: -0.012em;
  color: var(--paper);
}

.page-faq .faq-group-lead {
  margin: 0;
  max-width: 36ch;
  font-size: var(--step0);
  line-height: 1.72;
  color: var(--steel);
}

/* ---------- 问答条目 ---------- */

.page-faq .faq-list {
  min-width: 0;
}

.page-faq .faq-item {
  border: 1px solid var(--graphite);
  background: var(--faq-item-bg);
  margin-bottom: 12px;
  transition: border-color 0.18s var(--ease), background 0.18s var(--ease);
}

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

.page-faq .faq-item[open] {
  border-color: var(--gold);
  background: var(--faq-item-bg-open);
}

.page-faq .faq-item:hover {
  border-color: var(--faq-line);
}

.page-faq .faq-q {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 17px 18px;
  cursor: pointer;
  list-style: none;
  font-size: var(--step1);
  line-height: 1.5;
  color: var(--paper);
  transition: color 0.16s var(--ease);
}

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

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

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

.page-faq .faq-q-mark {
  flex: 0 0 auto;
  padding-top: 2px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--crimson);
}

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

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

.page-faq .faq-q-toggle {
  flex: 0 0 auto;
  position: relative;
  width: 14px;
  height: 14px;
  margin-top: 7px;
  margin-left: auto;
}

.page-faq .faq-q-toggle::before,
.page-faq .faq-q-toggle::after {
  content: "";
  position: absolute;
  background: var(--gold);
  transition: transform 0.18s var(--ease), opacity 0.18s var(--ease);
}

.page-faq .faq-q-toggle::before {
  left: 0;
  top: 6px;
  width: 14px;
  height: 2px;
}

.page-faq .faq-q-toggle::after {
  left: 6px;
  top: 0;
  width: 2px;
  height: 14px;
}

.page-faq .faq-item[open] .faq-q-toggle::after {
  transform: scaleY(0);
  opacity: 0;
}

.page-faq .faq-a {
  padding: 0 18px 20px 46px;
  font-size: var(--step0);
  line-height: 1.78;
  color: var(--cream);
}

.page-faq .faq-a p {
  margin: 0 0 14px;
  max-width: 68ch;
}

.page-faq .faq-a p:last-of-type {
  margin-bottom: 0;
}

.page-faq .faq-a a {
  color: var(--gold-light);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-color: var(--gold-deep);
}

.page-faq .faq-a a:hover {
  text-decoration-color: var(--gold);
}

.page-faq .faq-copy {
  margin-top: 14px;
  padding: 2px 0;
  border: 0;
  border-bottom: 1px dashed rgba(168, 137, 78, 0.55);
  background: none;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--gold-old);
  cursor: pointer;
  transition: color 0.16s var(--ease), border-color 0.16s var(--ease);
}

.page-faq .faq-copy:hover,
.page-faq .faq-copy:focus-visible {
  color: var(--gold-light);
  border-bottom-color: var(--gold-light);
}

.page-faq .faq-copy.is-copied {
  color: var(--gold);
  border-bottom-color: var(--gold);
}

/* ---------- 未收录问题 ---------- */

.page-faq .faq-contact {
  margin-top: clamp(40px, 5.4vw, 80px);
  padding: clamp(46px, 6.4vw, 92px) 0;
  background: var(--cream);
  color: var(--ink);
  border-top: 1px solid var(--gold-deep);
}

.page-faq .faq-contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 4vw, 52px);
  align-items: start;
}

.page-faq .faq-contact-figure {
  margin: 0;
  max-width: 460px;
}

.page-faq .faq-contact-figure .figure-frame {
  overflow: hidden;
  border-color: var(--gold-deep);
}

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

.page-faq .faq-contact-kicker {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: var(--step-1);
  letter-spacing: 0.2em;
  color: var(--crimson);
}

.page-faq .faq-contact-title {
  margin: 0 0 18px;
  max-width: 18em;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(24px, 3.5vw, var(--step3));
  line-height: 1.18;
  letter-spacing: -0.015em;
  color: var(--ink);
}

.page-faq .faq-contact-intro {
  margin: 0 0 26px;
  max-width: 58ch;
  font-size: var(--step0);
  line-height: 1.78;
  color: var(--graphite);
}

.page-faq .faq-contact-steps {
  margin: 0 0 28px;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--faq-line-soft);
}

.page-faq .faq-contact-steps li {
  display: flex;
  gap: 14px;
  align-items: baseline;
  padding: 12px 0;
  border-bottom: 1px solid var(--faq-line-soft);
  font-size: var(--step0);
  line-height: 1.6;
  color: var(--graphite);
}

.page-faq .faq-contact-steps span {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--crimson);
}

.page-faq .faq-contact-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
}

.page-faq .faq-contact-line {
  margin: 26px 0 0;
  font-size: var(--step0);
  line-height: 2;
  color: var(--graphite);
  word-break: break-word;
}

.page-faq .faq-contact-line span {
  display: inline-block;
  margin-right: 8px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--crimson);
}

/* ---------- 响应式 ---------- */

@media (max-width: 640px) {
  .page-faq .faq-index {
    top: calc(var(--header-h-m) - 1px);
  }

  .page-faq .faq-a {
    padding-left: 18px;
    padding-right: 16px;
  }

  .page-faq .faq-q {
    padding: 16px;
  }

  .page-faq .faq-contact-steps li {
    gap: 10px;
  }

  .page-faq .faq-contact-figure {
    max-width: 100%;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-group {
    display: grid;
    grid-template-columns: 236px minmax(0, 1fr);
    gap: 56px;
    align-items: start;
  }

  .page-faq .faq-group-head {
    position: sticky;
    top: calc(var(--header-h) + 72px);
    margin-bottom: 0;
  }

  .page-faq .faq-a {
    padding-left: 58px;
    padding-right: 26px;
  }

  .page-faq .faq-q {
    padding: 19px 24px;
  }
}

@media (min-width: 860px) {
  .page-faq .faq-contact-grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: clamp(40px, 5vw, 72px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-chip,
  .page-faq .faq-item,
  .page-faq .faq-q,
  .page-faq .faq-copy,
  .page-faq .faq-q-toggle::before,
  .page-faq .faq-q-toggle::after {
    transition: none;
  }
}
<<<END>>>