.page-faq {
  --faq-gap: clamp(20px, 3vw, 40px);
  --faq-rule: 1px solid var(--line-ink);
  background: var(--cream);
  color: var(--text);
}

.page-faq .container {
  max-width: var(--w-max);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  background: var(--ink);
  color: var(--cream);
  padding-block: clamp(22px, 4vw, 40px) clamp(30px, 5vw, 56px);
  border-bottom: 1px solid var(--line-light);
}

.page-faq .faq-hero .breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  list-style: none;
  margin: 0 0 clamp(24px, 4vw, 40px);
  padding: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .02em;
  color: var(--mist);
}

.page-faq .faq-hero .breadcrumb__item + .breadcrumb__item::before {
  content: "/";
  margin-right: 6px;
  color: rgba(244, 241, 234, .35);
}

.page-faq .faq-hero .breadcrumb__item a {
  color: var(--cream);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}

.page-faq .faq-hero .breadcrumb__item a:hover,
.page-faq .faq-hero .breadcrumb__item a:focus-visible {
  border-bottom-color: var(--signal);
}

.page-faq .faq-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 48px);
  align-items: start;
}

.page-faq .faq-hero .eyebrow {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  text-transform: uppercase;
}

.page-faq .faq-hero .eyebrow--light {
  color: var(--celadon-pale);
}

.page-faq .faq-hero h1 {
  margin: 0 0 18px;
  font-size: clamp(32px, 6.4vw, 64px);
  line-height: 1.02;
  letter-spacing: -.02em;
  font-weight: 900;
  max-width: 15em;
}

.page-faq .faq-hero__intro {
  margin: 0 0 22px;
  max-width: 34em;
  font-size: 15px;
  line-height: 1.85;
  color: rgba(244, 241, 234, .82);
}

.page-faq .faq-hero__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
  margin: 0;
}

.page-faq .faq-hero__meta-note {
  font-size: 13px;
  line-height: 1.7;
  color: var(--mist);
  max-width: 22em;
}

.page-faq .btn {
  display: inline-block;
  padding: 12px 24px;
  font-size: 15px;
  font-weight: 700;
  line-height: 1.3;
  text-decoration: none;
  border-radius: var(--radius);
  border: 1px solid transparent;
  transition: background-color .18s var(--ease), color .18s var(--ease), border-color .18s var(--ease);
}

.page-faq .btn--primary {
  background: var(--signal);
  color: var(--ink);
}

.page-faq .btn--primary:hover,
.page-faq .btn--primary:focus-visible {
  background: var(--signal-deep);
  color: var(--paper);
}

.page-faq .btn--ghost {
  background: transparent;
  color: var(--ink);
  border-color: var(--line-ink-strong);
}

.page-faq .btn--ghost:hover,
.page-faq .btn--ghost:focus-visible {
  border-color: var(--signal);
  color: var(--signal-deep);
}

.page-faq .btn:focus-visible {
  outline: 2px solid var(--signal);
  outline-offset: 2px;
}

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

.page-faq .figure__frame {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line-light);
  border-radius: var(--radius);
  background: var(--ink-soft);
}

.page-faq .faq-hero__figure .figure__frame {
  aspect-ratio: 5 / 3;
}

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

.page-faq .figure__caption {
  margin-top: 10px;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--mist);
}

.page-faq .faq-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: 1px;
  margin: clamp(28px, 4vw, 44px) 0 0;
  padding: 0;
  list-style: none;
  background: var(--line-light);
  border: 1px solid var(--line-light);
}

.page-faq .faq-stats__item {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 16px 18px;
  background: var(--ink);
}

.page-faq .faq-stats__num {
  font-family: var(--font-mono);
  font-size: clamp(24px, 3.4vw, 34px);
  font-weight: 700;
  letter-spacing: .02em;
  color: var(--signal);
  line-height: 1;
}

.page-faq .faq-stats__label {
  font-size: 12.5px;
  letter-spacing: .04em;
  color: rgba(244, 241, 234, .7);
}

/* ---------- 主体：索引 + 问答流 ---------- */
.page-faq .faq-body {
  padding-block: clamp(32px, 5vw, 72px);
}

.page-faq .faq-body__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--faq-gap);
}

.page-faq .faq-index .eyebrow {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--celadon);
}

.page-faq .faq-index__list {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: var(--faq-rule);
}

.page-faq .faq-index__item {
  border-bottom: var(--faq-rule);
}

.page-faq .faq-index__link {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 11px 4px;
  font-size: 14.5px;
  line-height: 1.5;
  color: var(--text);
  text-decoration: none;
  transition: color .16s var(--ease), padding-left .16s var(--ease);
}

.page-faq .faq-index__link .num {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--mist);
  letter-spacing: .02em;
}

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  color: var(--celadon);
  padding-left: 8px;
}

.page-faq .faq-index__link:hover .num,
.page-faq .faq-index__link:focus-visible .num {
  color: var(--signal);
}

.page-faq .faq-index__link:focus-visible {
  outline: 2px solid var(--signal);
  outline-offset: 2px;
}

.page-faq .faq-index__note {
  margin-top: 22px;
  padding: 16px 18px;
  background: var(--celadon-pale);
  border-left: 3px solid var(--celadon);
  border-radius: var(--radius);
}

.page-faq .faq-index__note .dot {
  display: none;
}

.page-faq .faq-index__note p {
  margin: 0 0 10px;
  font-size: 13.5px;
  line-height: 1.9;
  color: var(--text);
}

.page-faq .faq-index__note-link {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .02em;
  color: var(--celadon);
  text-decoration: none;
  border-bottom: 1px solid var(--celadon);
}

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

.page-faq .faq-stream {
  display: grid;
  gap: clamp(28px, 4vw, 48px);
}

.page-faq .faq-topic {
  scroll-margin-top: 24px;
}

.page-faq .faq-topic__head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--ink);
}

.page-faq .faq-topic__num {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .04em;
  color: var(--signal-deep);
}

.page-faq .faq-topic__head h2 {
  margin: 0;
  font-size: clamp(20px, 2.6vw, 26px);
  line-height: 1.2;
  letter-spacing: -.01em;
  font-weight: 800;
  color: var(--ink);
}

.page-faq .faq-topic__list {
  display: grid;
  border-bottom: var(--faq-rule);
}

.page-faq .qa {
  border-top: var(--faq-rule);
  padding-left: 14px;
  box-shadow: inset 0 0 0 0 var(--celadon);
  transition: box-shadow .18s var(--ease), background-color .18s var(--ease);
}

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

.page-faq .qa summary {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 13px 0;
  cursor: pointer;
  list-style: none;
  font-size: 15px;
  line-height: 1.6;
  font-weight: 500;
  color: var(--text);
}

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

.page-faq .qa summary::after {
  content: "＋";
  margin-left: auto;
  padding-left: 12px;
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--mist);
}

.page-faq .qa[open] {
  box-shadow: inset 3px 0 0 var(--celadon);
  background: rgba(220, 235, 229, .34);
}

.page-faq .qa[open] summary {
  color: var(--ink);
  font-weight: 700;
}

.page-faq .qa[open] summary::after {
  content: "−";
  color: var(--celadon);
}

.page-faq .qa summary:focus-visible {
  outline: 2px solid var(--signal);
  outline-offset: 2px;
}

.page-faq .qa__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .02em;
  color: var(--mist);
  flex: none;
}

.page-faq .qa[open] .qa__num {
  color: var(--clay);
}

.page-faq .qa__body {
  padding: 0 0 16px 30px;
}

.page-faq .qa__body p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.95;
  color: var(--slate);
  max-width: 44em;
}

.page-faq .faq-topic__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(20px, 3vw, 32px);
  align-items: start;
}

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

.page-faq .faq-topic__figure .figure__frame {
  aspect-ratio: 3 / 2;
  border-color: var(--line-ink);
  background: var(--paper);
}

.page-faq .faq-topic__figure .figure__caption {
  color: var(--slate);
}

/* ---------- 支持路径 ---------- */
.page-faq .faq-support {
  background: var(--ink-soft);
  color: var(--cream);
  padding-block: clamp(36px, 6vw, 72px);
  border-top: 1px solid var(--line-light);
}

.page-faq .faq-support .eyebrow {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--celadon-pale);
}

.page-faq .faq-support__head h2 {
  margin: 0 0 12px;
  font-size: clamp(24px, 4vw, 40px);
  line-height: 1.1;
  letter-spacing: -.02em;
  font-weight: 900;
  color: var(--cream);
}

.page-faq .faq-support__lead {
  margin: 0 0 clamp(24px, 4vw, 36px);
  max-width: 40em;
  font-size: 14.5px;
  line-height: 1.9;
  color: rgba(244, 241, 234, .78);
}

.page-faq .faq-support__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--line-light);
  border: 1px solid var(--line-light);
}

.page-faq .faq-support__card {
  padding: 20px 20px 24px;
  background: var(--ink);
}

.page-faq .tag {
  display: inline-block;
  margin-bottom: 12px;
  padding: 3px 9px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .06em;
  border-radius: var(--radius);
}

.page-faq .tag--celadon {
  background: var(--celadon);
  color: var(--paper);
}

.page-faq .tag--signal {
  background: var(--signal);
  color: var(--ink);
}

.page-faq .faq-support__card h3 {
  margin: 0 0 10px;
  font-size: 17px;
  font-weight: 700;
  color: var(--cream);
}

.page-faq .faq-support__value {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 15px;
  letter-spacing: .02em;
  color: var(--signal);
  word-break: break-word;
}

.page-faq .faq-support__card p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.85;
  color: rgba(244, 241, 234, .72);
}

.page-faq .faq-support__foot {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-top: clamp(20px, 3vw, 32px);
  padding-top: clamp(16px, 2.4vw, 24px);
  border-top: 1px solid var(--line-light);
}

.page-faq .faq-support__addr {
  margin: 0;
  font-size: 13px;
  line-height: 1.8;
  color: var(--mist);
}

.page-faq .faq-support .btn--ghost {
  color: var(--cream);
  border-color: rgba(244, 241, 234, .4);
}

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

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-faq .faq-support__grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: 7fr 5fr;
    align-items: center;
  }

  .page-faq .faq-body__grid {
    grid-template-columns: 3fr 9fr;
    align-items: start;
  }

  .page-faq .faq-index {
    position: sticky;
    top: 24px;
    align-self: start;
  }

  .page-faq .faq-topic__grid {
    grid-template-columns: 8fr 4fr;
  }

  .page-faq .faq-index__note .dot {
    display: inline-block;
    width: 8px;
    height: 8px;
    margin-bottom: 10px;
    border-radius: 50%;
  }
}

@media (min-width: 1180px) {
  .page-faq .faq-hero__intro {
    font-size: 16px;
  }

  .page-faq .qa summary {
    font-size: 16px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .qa,
  .page-faq .faq-index__link,
  .page-faq .btn {
    transition: none;
  }
}
<<<END>>>