.page-faq {
  --faq-cream-line: rgba(27, 20, 16, 0.14);
  --faq-dark-line: rgba(248, 244, 234, 0.18);
  --faq-body-text: #3b312b;
  --faq-muted: #6b5c50;
  background: var(--cream);
  color: var(--ink);
  font-family: var(--font-body);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: clamp(18px, 3.4vw, 34px) 0 clamp(22px, 4vw, 40px);
  color: var(--chalk);
  background:
    radial-gradient(120% 100% at 88% -12%, rgba(11, 90, 59, 0.62) 0%, rgba(6, 26, 43, 0) 62%),
    linear-gradient(155deg, #0a2337 0%, var(--night) 58%, #04111c 100%);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  opacity: 0.7;
  background-image:
    repeating-linear-gradient(90deg, rgba(248, 244, 234, 0.05) 0 1px, transparent 1px 78px),
    repeating-linear-gradient(0deg, rgba(248, 244, 234, 0.05) 0 1px, transparent 1px 78px);
}

.page-faq .faq-crumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--steel);
}

.page-faq .faq-crumbs a {
  color: var(--steel);
  text-decoration: none;
  transition: color 0.16s ease;
}

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

.page-faq .faq-hero__grid {
  display: grid;
  gap: clamp(20px, 3vw, 32px);
  margin-top: clamp(16px, 3vw, 26px);
}

.page-faq .faq-kicker {
  margin: 0 0 10px;
  color: var(--signal);
  letter-spacing: 0.12em;
}

.page-faq .faq-h1 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2rem, 6.4vw, 3.6rem);
  line-height: 1.06;
  letter-spacing: -0.02em;
  color: var(--chalk);
}

.page-faq .faq-lede {
  margin: 16px 0 0;
  max-width: 46ch;
  font-size: 15px;
  line-height: 1.85;
  color: rgba(248, 244, 234, 0.82);
}

.page-faq .faq-hero__facts {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 24px;
  margin: 20px 0 0;
  padding: 0;
  list-style: none;
  font-size: 13px;
  color: var(--steel);
}

.page-faq .faq-hero__facts li {
  display: flex;
  align-items: center;
  gap: 8px;
}

.page-faq .faq-fact__k {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 15px;
  color: var(--signal);
}

.page-faq .faq-hero__media {
  position: relative;
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--faq-dark-line);
  border-radius: var(--radius-m);
  box-shadow: 0 22px 44px -28px rgba(0, 0, 0, 0.85);
}

.page-faq .faq-hero__media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.page-faq .faq-hero__media::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(200deg, rgba(255, 122, 26, 0.16) 0%, rgba(6, 26, 43, 0) 46%);
}

/* 主题跳转条 */
.page-faq .faq-jump {
  display: flex;
  gap: 8px;
  margin-top: clamp(20px, 3.4vw, 34px);
  padding-top: 14px;
  overflow-x: auto;
  border-top: 1px solid var(--faq-dark-line);
  scrollbar-width: thin;
  -webkit-overflow-scrolling: touch;
}

.page-faq .faq-jump a {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 42px;
  padding: 9px 15px;
  border: 1px solid var(--faq-dark-line);
  border-radius: 999px;
  background: rgba(18, 54, 79, 0.55);
  color: rgba(248, 244, 234, 0.88);
  font-size: 13px;
  text-decoration: none;
  white-space: nowrap;
  transition: background 0.16s ease, color 0.16s ease, border-color 0.16s ease;
}

.page-faq .faq-jump a span {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--signal);
  transition: color 0.16s ease;
}

.page-faq .faq-jump a:hover,
.page-faq .faq-jump a:focus-visible {
  background: var(--cash);
  border-color: var(--cash);
  color: var(--night);
}

.page-faq .faq-jump a:hover span,
.page-faq .faq-jump a:focus-visible span {
  color: var(--night);
}

/* ---------- 正文 ---------- */
.page-faq .faq-body {
  padding: clamp(30px, 5vw, 68px) 0 clamp(38px, 6vw, 84px);
  background: var(--cream);
}

.page-faq .faq-body__grid {
  display: grid;
  gap: clamp(20px, 3vw, 30px);
}

.page-faq .faq-side {
  display: none;
}

.page-faq .faq-side__title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--steel);
}

.page-faq .faq-side__list {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--faq-cream-line);
}

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

.page-faq .faq-side__link {
  display: grid;
  grid-template-columns: 20px minmax(0, 1fr) auto;
  gap: 8px;
  align-items: center;
  padding: 11px 2px;
  color: var(--ink);
  font-size: 13.5px;
  text-decoration: none;
  transition: color 0.16s ease;
}

.page-faq .faq-side__link:hover,
.page-faq .faq-side__link:focus-visible {
  color: var(--pitch);
}

.page-faq .faq-side__no {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--cash);
}

.page-faq .faq-side__count {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--steel);
  font-variant-numeric: tabular-nums;
}

.page-faq .faq-side__links {
  margin-top: 26px;
}

.page-faq .faq-side__links a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 10px 0;
  border-bottom: 1px dashed var(--faq-cream-line);
  color: var(--pitch);
  font-size: 13px;
  text-decoration: none;
}

.page-faq .faq-side__links a::after {
  content: "→";
  font-family: var(--font-mono);
  color: var(--cash);
}

.page-faq .faq-side__links a:hover {
  color: var(--alert);
}

/* 分组 */
.page-faq .faq-group {
  scroll-margin-top: calc(var(--head-h) + 20px);
}

.page-faq .faq-group + .faq-group {
  margin-top: clamp(32px, 4.4vw, 56px);
}

.page-faq .faq-group__head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  column-gap: 12px;
  row-gap: 6px;
  align-items: baseline;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--ink);
}

.page-faq .faq-group__no {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--cash);
}

.page-faq .faq-group__head h2 {
  margin: 0;
  font-family: var(--font-serif);
  font-size: clamp(1.25rem, 2.6vw, 1.7rem);
  line-height: 1.25;
  color: var(--ink);
}

.page-faq .faq-group__desc {
  grid-column: 2;
  margin: 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--faq-muted);
}

/* 手风琴 */
.page-faq .faq-item {
  border-bottom: 1px solid var(--faq-cream-line);
}

.page-faq .faq-item > summary {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 12px;
  align-items: start;
  padding: 15px 0;
  list-style: none;
  cursor: pointer;
}

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

.page-faq .faq-item > summary:focus-visible {
  outline: 2px solid var(--pitch);
  outline-offset: 4px;
  border-radius: var(--radius-s);
}

.page-faq .faq-item__no {
  padding-top: 3px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--steel);
  font-variant-numeric: tabular-nums;
}

.page-faq .faq-item__q {
  font-size: 15.5px;
  font-weight: 600;
  line-height: 1.6;
  color: var(--ink);
  transition: color 0.16s ease;
}

.page-faq .faq-item > summary:hover .faq-item__q {
  color: var(--pitch);
}

.page-faq .faq-item__mark {
  position: relative;
  flex: 0 0 auto;
  width: 24px;
  height: 24px;
  margin-top: 1px;
  border: 1px solid rgba(27, 20, 16, 0.28);
  border-radius: 50%;
  transition: background 0.16s ease, border-color 0.16s ease;
}

.page-faq .faq-item__mark::before,
.page-faq .faq-item__mark::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  background: var(--ink);
  transform: translate(-50%, -50%);
}

.page-faq .faq-item__mark::before {
  width: 10px;
  height: 1.5px;
}

.page-faq .faq-item__mark::after {
  width: 1.5px;
  height: 10px;
  transition: opacity 0.16s ease;
}

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

.page-faq .faq-item[open] .faq-item__mark::before,
.page-faq .faq-item[open] .faq-item__mark::after {
  background: var(--night);
}

.page-faq .faq-item[open] .faq-item__mark::after {
  opacity: 0;
}

.page-faq .faq-item__a {
  padding: 0 0 18px 32px;
}

.page-faq .faq-item__a p {
  margin: 0;
  max-width: 62ch;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--faq-body-text);
}

/* 章节配图 */
.page-faq .faq-figure {
  margin: 20px 0 0;
  max-width: 420px;
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  border-radius: var(--radius-m);
  border: 1px solid rgba(27, 20, 16, 0.16);
}

.page-faq .faq-figure figcaption {
  margin-top: 8px;
  font-size: 12px;
  line-height: 1.7;
  letter-spacing: 0.02em;
  color: var(--faq-muted);
}

/* ---------- 收尾 ---------- */
.page-faq .faq-help {
  padding: clamp(30px, 5vw, 62px) 0;
  color: var(--chalk);
  background:
    radial-gradient(90% 120% at 100% 0%, rgba(11, 90, 59, 0.9) 0%, rgba(11, 90, 59, 0) 70%),
    var(--pitch);
}

.page-faq .faq-help__grid {
  display: grid;
  gap: 22px;
}

.page-faq .faq-help__kicker {
  margin: 0 0 8px;
  color: var(--signal);
  letter-spacing: 0.12em;
}

.page-faq .faq-help__copy h2 {
  margin: 0;
  font-family: var(--font-serif);
  font-size: clamp(1.4rem, 3.4vw, 2.1rem);
  line-height: 1.3;
  color: var(--chalk);
}

.page-faq .faq-help__copy p {
  margin: 12px 0 0;
  max-width: 48ch;
  font-size: 14.5px;
  line-height: 1.85;
  color: rgba(248, 244, 234, 0.82);
}

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

.page-faq .faq-help .faq-copy {
  min-height: 44px;
  padding: 8px 14px;
  border: 1px solid rgba(248, 244, 234, 0.3);
  border-radius: var(--radius-s);
  background: rgba(6, 26, 43, 0.4);
  color: var(--chalk);
  cursor: pointer;
}

.page-faq .faq-help .faq-copy .copy-chip__value {
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--chalk);
}

.page-faq .faq-help .faq-copy .copy-chip__tag {
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--signal);
}

.page-faq .faq-help .faq-copy:hover {
  border-color: var(--signal);
}

.page-faq .faq-help__note {
  flex: 1 0 100%;
  margin: 0;
  font-size: 12.5px;
  line-height: 1.75;
  letter-spacing: 0.02em;
  color: rgba(248, 244, 234, 0.72);
}

/* ---------- 断点 ---------- */
@media (min-width: 600px) {
  .page-faq .faq-item__a {
    padding-left: 40px;
  }

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

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
    align-items: center;
    gap: clamp(32px, 4vw, 60px);
  }
}

@media (min-width: 960px) {
  .page-faq .faq-body__grid {
    grid-template-columns: 244px minmax(0, 1fr);
    gap: clamp(36px, 4.5vw, 76px);
    align-items: start;
  }

  .page-faq .faq-side {
    display: block;
    position: sticky;
    top: calc(var(--head-h) + 24px);
    align-self: start;
  }

  .page-faq .faq-item > summary {
    padding: 18px 0;
  }

  .page-faq .faq-item__a {
    padding-bottom: 20px;
  }
}

@media (min-width: 880px) {
  .page-faq .faq-help__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    align-items: center;
    gap: clamp(30px, 4vw, 64px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-jump a,
  .page-faq .faq-jump a span,
  .page-faq .faq-item__q,
  .page-faq .faq-item__mark,
  .page-faq .faq-item__mark::after,
  .page-faq .faq-crumbs a,
  .page-faq .faq-side__link,
  .page-faq .faq-help .faq-copy {
    transition: none;
  }
}
<<<END>>>