.page-faq {
  --faq-rail-w: 306px;
  --faq-glow: rgba(200, 255, 61, 0.3);
  background: var(--ink-900);
  color: var(--paper);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.75;
}

.page-faq .shell {
  position: relative;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: calc(var(--header-h) + 30px) 0 46px;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(120% 90% at 84% 4%, rgba(200, 255, 61, 0.12), transparent 58%),
    linear-gradient(158deg, var(--ink-900) 0%, var(--navy-900) 100%);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 96px 96px;
  opacity: 0.42;
  pointer-events: none;
}

.page-faq .breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 28px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--mute);
}

.page-faq .breadcrumbs a {
  color: var(--mute);
  text-decoration: none;
}

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

.page-faq .faq-hero__grid {
  display: grid;
  gap: 30px;
}

.page-faq .eyebrow {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--lime);
}

.page-faq .faq-hero h1 {
  margin: 0 0 20px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(34px, 8vw, 72px);
  line-height: 0.98;
  letter-spacing: -0.02em;
  color: var(--paper);
}

.page-faq .faq-mark {
  color: var(--lime);
}

.page-faq .faq-hero__lede {
  margin: 0;
  max-width: 48ch;
  font-size: 16px;
  line-height: 1.8;
  color: rgba(244, 241, 232, 0.78);
}

.page-faq .faq-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-hero__meta li {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.05em;
  color: var(--mute);
}

.page-faq .faq-hero__meta li::before {
  content: "";
  display: inline-block;
  width: 6px;
  height: 6px;
  margin-right: 8px;
  vertical-align: middle;
  background: var(--lime);
}

.page-faq .faq-hero__figure {
  position: relative;
  margin: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius-a);
  overflow: hidden;
  background: var(--ink-700);
}

.page-faq .faq-hero__figure::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(10, 31, 26, 0.55) 1px, transparent 1px);
  background-size: 4px 4px;
  opacity: 0.22;
  pointer-events: none;
}

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

/* ---------- 主体两栏 ---------- */
.page-faq .faq-body {
  padding: 40px 0 64px;
}

.page-faq .faq-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 34px;
}

.page-faq .faq-rail {
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius-b);
  background: rgba(18, 51, 43, 0.55);
}

.page-faq .faq-rail__label {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--mute);
}

.page-faq .faq-search {
  margin-bottom: 18px;
}

.page-faq .faq-search__input {
  width: 100%;
  padding: 10px 12px;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--paper);
  background: var(--ink-900);
  border: 1px solid var(--line);
  border-radius: 4px;
  transition: border-color 0.18s var(--ease), box-shadow 0.18s var(--ease);
}

.page-faq .faq-search__input::placeholder {
  color: var(--mute);
}

.page-faq .faq-search__input:focus {
  outline: none;
  border-color: var(--lime);
  box-shadow: 0 0 0 4px var(--faq-glow);
}

.page-faq .faq-rail__list {
  display: grid;
  gap: 2px;
  margin: 0 0 16px;
  padding: 0;
  list-style: none;
}

.page-faq .faq-rail__link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 9px 10px 9px 12px;
  border-left: 3px solid transparent;
  color: var(--mute);
  font-size: 14px;
  text-decoration: none;
  transition: color 0.18s var(--ease), border-color 0.18s var(--ease), background 0.18s var(--ease);
}

.page-faq .faq-rail__link:hover,
.page-faq .faq-rail__link:focus-visible {
  color: var(--lime);
  border-left-color: var(--lime);
  background: rgba(200, 255, 61, 0.07);
}

.page-faq .faq-rail__num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--lime);
}

.page-faq .faq-rail__foot {
  margin: 0;
  padding-top: 14px;
  border-top: 1px dashed var(--line);
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--mute);
}

/* ---------- 问答列表 ---------- */
.page-faq .faq-block {
  margin-bottom: 52px;
  scroll-margin-top: calc(var(--header-h) + 20px);
}

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

.page-faq .faq-block__head {
  display: grid;
  gap: 6px;
  margin-bottom: 6px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-block h2 {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(23px, 4.4vw, 32px);
  letter-spacing: -0.01em;
  line-height: 1.2;
  color: var(--paper);
}

.page-faq .faq-block__num {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 400;
  letter-spacing: 0.08em;
  color: var(--lime);
}

.page-faq .faq-block__note {
  margin: 0;
  font-size: 13.5px;
  color: var(--mute);
}

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

.page-faq .faq-item__q {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 2px;
  cursor: pointer;
  list-style: none;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.55;
  color: var(--paper);
  transition: color 0.18s var(--ease);
}

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

.page-faq .faq-item__q:hover,
.page-faq .faq-item__q:focus-visible,
.page-faq .faq-item[open] .faq-item__q {
  color: var(--lime);
}

.page-faq .faq-item__sign {
  position: relative;
  flex: 0 0 22px;
  width: 22px;
  height: 22px;
  margin-top: 2px;
  border: 1px solid var(--line);
  border-radius: 4px 10px 4px 10px;
}

.page-faq .faq-item__sign::before,
.page-faq .faq-item__sign::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  background: var(--lime);
  transition: transform 0.22s var(--ease), opacity 0.22s var(--ease);
}

.page-faq .faq-item__sign::before {
  width: 11px;
  height: 2px;
  transform: translate(-50%, -50%);
}

.page-faq .faq-item__sign::after {
  width: 2px;
  height: 11px;
  transform: translate(-50%, -50%);
}

.page-faq .faq-item[open] .faq-item__sign::after {
  transform: translate(-50%, -50%) rotate(90deg);
}

.page-faq .faq-item__a {
  margin: 0 0 16px;
  padding: 16px 18px;
  border-radius: var(--radius-b);
  background: var(--paper);
  color: var(--near-black);
  font-size: 15px;
  line-height: 1.78;
}

.page-faq .faq-item__a p {
  margin: 0 0 10px;
}

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

.page-faq .faq-item__a a {
  color: var(--brick);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .faq-item__a a:hover,
.page-faq .faq-item__a a:focus-visible {
  color: var(--near-black);
}

.page-faq .faq-path {
  padding: 10px 12px;
  border-left: 3px solid var(--brick);
  border-radius: 0 4px 4px 0;
  background: rgba(10, 31, 26, 0.07);
  font-family: var(--font-mono);
  font-size: 12.5px;
  line-height: 1.7;
  letter-spacing: 0.01em;
  color: var(--ink-700);
}

.page-faq .faq-figure {
  margin: 24px 0 0;
  border: 1px solid var(--line);
  border-radius: var(--radius-a);
  overflow: hidden;
  background: var(--ink-700);
}

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

.page-faq .faq-figure figcaption {
  padding: 10px 12px;
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.04em;
  color: var(--mute);
}

/* ---------- 兜底与联系方式 ---------- */
.page-faq .faq-help {
  padding: 50px 0 60px;
  border-top: 1px solid var(--line);
  background:
    radial-gradient(90% 120% at 12% 0%, rgba(180, 68, 44, 0.18), transparent 62%),
    var(--navy-900);
}

.page-faq .faq-help__grid {
  display: grid;
  gap: 30px;
}

.page-faq .faq-help h2 {
  margin: 0 0 16px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(26px, 5vw, 40px);
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--paper);
}

.page-faq .faq-help__copy > p {
  margin: 0 0 16px;
  max-width: 46ch;
  color: rgba(244, 241, 232, 0.78);
}

.page-faq .faq-help__list {
  display: grid;
  gap: 8px;
  margin: 0 0 20px;
  padding: 0;
  list-style: none;
}

.page-faq .faq-help__list li {
  padding-left: 18px;
  font-size: 15px;
  color: var(--paper);
  position: relative;
}

.page-faq .faq-help__list li::before {
  content: "▍";
  position: absolute;
  left: 0;
  color: var(--brick);
}

.page-faq .faq-help__note {
  font-size: 14px;
  color: var(--mute);
}

.page-faq .faq-help__note a {
  color: var(--lime);
  text-decoration: none;
  border-bottom: 1px solid rgba(200, 255, 61, 0.4);
}

.page-faq .faq-help__note a:hover,
.page-faq .faq-help__note a:focus-visible {
  color: var(--lime-soft);
  border-bottom-color: var(--lime-soft);
}

.page-faq .faq-help__cta {
  display: inline-block;
  margin-top: 6px;
  padding: 12px 22px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  background: var(--lime);
  color: var(--ink-900);
  border: 1px solid var(--lime);
  border-radius: 4px 10px 4px 10px;
  text-decoration: none;
  transition: transform 0.18s var(--ease), background 0.18s var(--ease);
}

.page-faq .faq-help__cta:hover,
.page-faq .faq-help__cta:focus-visible {
  transform: translateY(-2px);
  background: var(--lime-soft);
  border-color: var(--lime-soft);
}

.page-faq .faq-contact {
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius-a);
  background: var(--ink-700);
}

.page-faq .faq-contact__label {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--lime);
}

.page-faq .faq-contact__row {
  padding: 12px 0;
  border-bottom: 1px dashed var(--line);
}

.page-faq .faq-contact__key {
  margin: 0 0 4px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--mute);
}

.page-faq .faq-contact__value {
  margin: 0;
  font-size: 15px;
  color: var(--paper);
}

.page-faq .copy-line {
  display: flex;
  width: 100%;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 4px 0;
  background: transparent;
  border: 0;
  cursor: pointer;
  text-align: left;
  color: var(--lime);
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: 0.02em;
  transition: color 0.18s var(--ease);
}

.page-faq .copy-line:hover,
.page-faq .copy-line:focus-visible {
  color: var(--lime-soft);
}

.page-faq .copy-line__hint {
  flex: 0 0 auto;
  padding: 3px 7px;
  border: 1px solid var(--line);
  border-radius: 3px;
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--mute);
}

.page-faq .copy-line[data-copied="true"] .copy-line__hint {
  background: var(--lime);
  border-color: var(--lime);
  color: var(--ink-900);
}

.page-faq .faq-contact__note {
  margin: 14px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--mute);
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-hero {
    padding: calc(var(--header-h) + 40px) 0 56px;
  }

  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1fr) 268px;
    gap: 44px;
    align-items: end;
  }

  .page-faq .faq-body {
    padding: 48px 0 76px;
  }

  .page-faq .faq-item__q {
    padding: 18px 2px;
    font-size: 17px;
  }

  .page-faq .faq-item__a {
    padding: 18px 22px;
    font-size: 15.5px;
  }
}

@media (min-width: 1000px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1fr) 320px;
    gap: 64px;
  }

  .page-faq .faq-layout {
    grid-template-columns: var(--faq-rail-w) minmax(0, 1fr);
    gap: 56px;
    align-items: start;
  }

  .page-faq .faq-rail {
    position: sticky;
    top: calc(var(--header-h) + 24px);
  }

  .page-faq .faq-help__grid {
    grid-template-columns: minmax(0, 1fr) 380px;
    gap: 56px;
    align-items: start;
  }

  .page-faq .faq-block {
    margin-bottom: 60px;
  }
}

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