.page-faq {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  padding-bottom: clamp(48px, 8vw, 96px);
}

.page-faq img {
  display: block;
  max-width: 100%;
  height: auto;
}

.page-faq .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding: clamp(18px, 3vw, 30px) 0 0;
  font-family: var(--font-mono);
  font-size: var(--fs-2xs);
  letter-spacing: .08em;
  color: var(--stone-300);
}

.page-faq .breadcrumb a {
  color: var(--stone-300);
  text-decoration: none;
  transition: color .2s var(--ease);
}

.page-faq .breadcrumb a:hover {
  color: var(--flame-300);
}

.page-faq .breadcrumb [aria-current="page"] {
  color: var(--ivory-100);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 3.5vw, 44px);
  padding: clamp(20px, 3.5vw, 36px) 0 clamp(30px, 5vw, 60px);
  border-bottom: 1px solid var(--edge);
}

.page-faq .faq-hero__title {
  margin: 12px 0 0;
  font-size: var(--fs-display);
  line-height: .96;
  letter-spacing: .06em;
}

.page-faq .faq-hero__lede {
  margin: 20px 0 0;
  max-width: 52ch;
  color: var(--text-dim);
}

.page-faq .faq-hero__aside {
  align-self: end;
}

.page-faq .faq-stats {
  border-top: 1px solid var(--edge-strong);
}

.page-faq .faq-stat {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding: 10px 0;
  border-bottom: 1px solid var(--edge);
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  letter-spacing: .04em;
}

.page-faq .faq-stat__k {
  color: var(--text-dim);
}

.page-faq .faq-stat__v {
  color: var(--ivory-100);
  text-align: right;
}

.page-faq .faq-stat__v--accent {
  color: var(--flame-500);
}

@media (min-width: 880px) {
  .page-faq .faq-hero {
    grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr);
    align-items: end;
  }
}

/* ---------- 六类问题导航 ---------- */
.page-faq .faq-map {
  background: var(--bg-raise);
  border-bottom: 1px solid var(--edge);
  padding: clamp(36px, 5.5vw, 72px) 0;
}

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

.page-faq .faq-map__head {
  margin-bottom: clamp(20px, 3vw, 30px);
}

.page-faq .faq-map__title {
  margin: 10px 0 0;
  font-size: var(--fs-lg);
  line-height: 1.35;
  letter-spacing: .03em;
}

.page-faq .faq-map__sub {
  margin: 12px 0 0;
  max-width: 54ch;
  font-size: var(--fs-sm);
  line-height: 1.7;
  color: var(--text-dim);
}

.page-faq .faq-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--edge);
  border: 1px solid var(--edge);
}

.page-faq .faq-jump {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  grid-template-areas:
    "num label"
    "num desc";
  gap: 4px 12px;
  padding: 16px 14px 15px;
  background: var(--space-800);
  border-left: 1px solid transparent;
  color: var(--text);
  text-decoration: none;
  transition: background .25s var(--ease), border-color .25s var(--ease);
}

.page-faq .faq-jump:hover,
.page-faq .faq-jump:focus-visible {
  background: var(--track-700);
  border-left-color: var(--flame-500);
}

.page-faq .faq-jump__num {
  grid-area: num;
  padding-top: 3px;
  font-family: var(--font-mono);
  font-size: var(--fs-2xs);
  letter-spacing: .12em;
  color: var(--flame-300);
}

.page-faq .faq-jump__label {
  grid-area: label;
  font-size: var(--fs-sm);
  font-weight: 600;
  letter-spacing: .02em;
}

.page-faq .faq-jump__desc {
  grid-area: desc;
  font-size: var(--fs-xs);
  line-height: 1.55;
  color: var(--stone-300);
}

.page-faq .faq-map__fig {
  margin: 0;
  border: 1px solid var(--edge);
}

.page-faq .faq-map__fig .figure__media img {
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-faq .faq-map__fig .figure__cap {
  padding: 8px 10px;
  border-top: 1px solid var(--edge);
  font-family: var(--font-mono);
  font-size: var(--fs-2xs);
  letter-spacing: .04em;
  color: var(--stone-300);
}

@media (min-width: 560px) {
  .page-faq .faq-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 940px) {
  .page-faq .faq-map__inner {
    grid-template-columns: minmax(0, 1.3fr) minmax(0, .7fr);
  }
}

/* ---------- 索引 + 问答 ---------- */
.page-faq .faq-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 56px);
  padding-top: clamp(36px, 6vw, 72px);
}

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

.page-faq .faq-index__label {
  display: block;
  margin: 0 0 12px;
  padding-top: 10px;
  border-top: 1px solid var(--chart-400);
  font-family: var(--font-mono);
  font-size: var(--fs-2xs);
  letter-spacing: .16em;
  color: var(--stone-300);
}

.page-faq .faq-index__list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  column-gap: 18px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-index__link {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 8px;
  padding: 9px 0;
  border-bottom: 1px solid var(--edge);
  color: var(--text-dim);
  text-decoration: none;
  font-size: var(--fs-xs);
  line-height: 1.5;
  transition: color .2s var(--ease), padding-left .2s var(--ease);
}

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  color: var(--ivory-100);
  padding-left: 6px;
}

.page-faq .faq-index__idx {
  font-family: var(--font-mono);
  color: var(--flame-500);
  letter-spacing: .08em;
}

.page-faq .faq-index__top {
  display: inline-block;
  margin-top: 16px;
  padding-bottom: 2px;
  border-bottom: 1px solid var(--edge);
  font-family: var(--font-mono);
  font-size: var(--fs-2xs);
  letter-spacing: .1em;
  color: var(--stone-300);
  text-decoration: none;
  transition: color .2s var(--ease), border-color .2s var(--ease);
}

.page-faq .faq-index__top:hover {
  color: var(--flame-300);
  border-bottom-color: var(--flame-300);
}

.page-faq .faq-groups {
  display: grid;
  gap: clamp(40px, 6vw, 72px);
  min-width: 0;
}

.page-faq .faq-group {
  min-width: 0;
  scroll-margin-top: 96px;
}

.page-faq .faq-group__head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 10px 14px;
  align-items: baseline;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--edge-strong);
}

.page-faq .faq-group__num {
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  letter-spacing: .14em;
  color: var(--flame-500);
  transition: color .25s var(--ease);
}

.page-faq .faq-group:target .faq-group__num {
  color: var(--chart-400);
}

.page-faq .faq-group__title {
  margin: 0;
  font-size: var(--fs-lg);
  font-weight: 600;
  letter-spacing: .03em;
}

.page-faq .faq-group__note {
  grid-column: 2;
  margin: 0;
  font-size: var(--fs-xs);
  line-height: 1.6;
  color: var(--stone-300);
}

/* ---------- 手风琴条目 ---------- */
.page-faq .qa {
  border-bottom: 1px solid var(--edge);
}

.page-faq .qa > summary {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 12px;
  align-items: start;
  padding: 16px 0;
  cursor: pointer;
  list-style: none;
}

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

.page-faq .qa > summary:focus-visible {
  outline: 1px solid var(--flame-300);
  outline-offset: 4px;
}

.page-faq .qa__sign {
  position: relative;
  width: 12px;
  height: 12px;
  margin-top: 8px;
}

.page-faq .qa__sign::before,
.page-faq .qa__sign::after {
  content: "";
  position: absolute;
  background: var(--flame-500);
  transition: transform .22s var(--ease), background .22s var(--ease);
}

.page-faq .qa__sign::before {
  left: 0;
  top: 5px;
  width: 12px;
  height: 2px;
}

.page-faq .qa__sign::after {
  left: 5px;
  top: 0;
  width: 2px;
  height: 12px;
}

.page-faq .qa[open] .qa__sign::after {
  transform: scaleY(0);
}

.page-faq .qa[open] .qa__sign::before {
  background: var(--chart-400);
}

.page-faq .qa__q {
  margin: 0;
  font-size: var(--fs-sm);
  font-weight: 600;
  line-height: 1.6;
  letter-spacing: .01em;
}

.page-faq .qa__a {
  margin: 0 0 18px;
  padding: 14px 16px;
  background: var(--bg-card);
  border-left: 1px solid var(--chart-400);
  font-size: var(--fs-sm);
  line-height: 1.75;
  color: var(--text-dim);
}

.page-faq .qa__a p {
  margin: 0 0 10px;
  max-width: 66ch;
}

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

.page-faq .qa__a strong {
  color: var(--ivory-100);
  font-weight: 600;
}

.page-faq .qa__a a {
  color: var(--flame-300);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color .2s var(--ease);
}

.page-faq .qa__a a:hover {
  color: var(--flame-500);
}

.page-faq .qa__fig {
  max-width: 460px;
  margin: 16px 0 2px;
  border: 1px solid var(--edge-strong);
}

.page-faq .qa__fig .figure__media img {
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-faq .qa__fig .figure__cap {
  padding: 8px 10px;
  border-top: 1px solid var(--edge);
  font-family: var(--font-mono);
  font-size: var(--fs-2xs);
  letter-spacing: .04em;
  color: var(--stone-300);
}

@media (min-width: 980px) {
  .page-faq .faq-body {
    grid-template-columns: 196px minmax(0, 1fr);
    gap: clamp(36px, 5vw, 80px);
  }

  .page-faq .faq-index {
    position: sticky;
    top: 28px;
    align-self: start;
  }

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

/* ---------- 人工通道 ---------- */
.page-faq .faq-help {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(18px, 3vw, 32px);
  margin-top: clamp(48px, 8vw, 96px);
  padding: clamp(26px, 4.5vw, 56px);
  background: var(--terra-500);
  color: var(--ivory-100);
}

.page-faq .faq-help__title {
  margin: 0;
  font-size: var(--fs-lg);
  line-height: 1.35;
  letter-spacing: .03em;
}

.page-faq .faq-help__text {
  margin: 12px 0 0;
  max-width: 52ch;
  font-size: var(--fs-sm);
  line-height: 1.7;
  color: rgba(244, 240, 230, .9);
}

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

.page-faq .faq-help__btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 20px;
  border: 1px solid rgba(244, 240, 230, .55);
  color: var(--ivory-100);
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  letter-spacing: .1em;
  text-decoration: none;
  transition: background .25s var(--ease), color .25s var(--ease), border-color .25s var(--ease);
}

.page-faq .faq-help__btn--solid {
  background: var(--ink-950);
  border-color: var(--ink-950);
}

.page-faq .faq-help__btn:hover,
.page-faq .faq-help__btn:focus-visible {
  background: var(--ivory-100);
  border-color: var(--ivory-100);
  color: var(--ink-950);
}

@media (min-width: 820px) {
  .page-faq .faq-help {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
    align-items: center;
  }

  .page-faq .faq-help__actions {
    justify-content: flex-end;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .qa__sign::before,
  .page-faq .qa__sign::after,
  .page-faq .faq-jump,
  .page-faq .faq-index__link,
  .page-faq .faq-help__btn {
    transition: none;
  }
}
<<<END>>>