.page-faq {
  --faq-rail: 232px;
  color: var(--text);
  background: var(--bg);
  padding-bottom: clamp(48px, 8vw, 96px);
}

.page-faq .breadcrumb {
  padding: clamp(18px, 3vw, 30px) 0 10px;
  font-family: var(--font-mono);
  font-size: 12px;
}

.page-faq .breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-faq .breadcrumb__link {
  color: var(--muted);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}

.page-faq .breadcrumb__link:hover,
.page-faq .breadcrumb__link:focus-visible {
  color: var(--accent);
  border-bottom-color: var(--accent-deep);
}

.page-faq .breadcrumb__sep {
  color: var(--line);
}

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

/* 首屏 */
.page-faq .faq-hero__grid {
  display: grid;
  gap: clamp(18px, 3vw, 32px);
  align-items: start;
}

.page-faq h1 {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-size: clamp(30px, 5.4vw, 52px);
  line-height: 1.14;
  font-weight: 700;
  letter-spacing: 0.01em;
  color: var(--text);
}

.page-faq .faq-hero__intro {
  max-width: 34em;
  margin: 16px 0 0;
  color: var(--muted);
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.8;
}

.page-faq .faq-hero__facts {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 20px;
}

.page-faq .faq-hero__fact {
  border: 1px solid var(--line);
  padding: 6px 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--muted);
}

.page-faq .faq-hero__fact strong {
  color: var(--score);
  font-weight: 600;
  margin-right: 4px;
}

.page-faq .faq-board {
  border: 1px solid var(--line);
  background: var(--surface);
}

.page-faq .faq-board__item {
  display: grid;
  grid-template-columns: 32px minmax(0, 1fr) auto;
  align-items: center;
  gap: 10px;
  padding: 12px 14px;
  border-top: 1px solid var(--line-soft);
  color: var(--text);
  text-decoration: none;
  transition: background 160ms ease, box-shadow 160ms ease;
}

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

.page-faq .faq-board__item:hover,
.page-faq .faq-board__item:focus-visible {
  background: var(--glass);
  box-shadow: inset 2px 0 0 var(--accent);
}

.page-faq .faq-board__num {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--accent);
  letter-spacing: 0.06em;
}

.page-faq .faq-board__name {
  font-size: 15px;
  line-height: 1.5;
}

.page-faq .faq-board__count {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--score);
}

.page-faq .faq-hero__figure {
  margin: clamp(22px, 3.4vw, 34px) 0 0;
  border: 1px solid var(--line);
  background: var(--bg-2);
}

.page-faq .faq-hero__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 2 / 1;
  object-fit: cover;
}

.page-faq .faq-hero__figure figcaption {
  padding: 8px 12px;
  border-top: 1px solid var(--line-soft);
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--muted);
}

/* 主体 */
.page-faq .faq-body {
  display: grid;
  gap: clamp(20px, 3vw, 40px);
  margin-top: clamp(32px, 5vw, 64px);
}

.page-faq .faq-nav {
  border-top: 1px solid var(--line);
  padding-top: 14px;
}

.page-faq .faq-nav__title {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--muted);
}

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

.page-faq .faq-nav__link {
  display: grid;
  grid-template-columns: 26px minmax(0, 1fr);
  gap: 8px;
  align-items: baseline;
  padding: 9px 10px;
  border-left: 2px solid transparent;
  color: var(--text);
  font-size: 14px;
  line-height: 1.5;
  text-decoration: none;
  transition: color 160ms ease, border-color 160ms ease, background 160ms ease;
}

.page-faq .faq-nav__link:hover,
.page-faq .faq-nav__link:focus-visible {
  color: var(--accent);
  border-left-color: var(--accent);
  background: var(--glass);
}

.page-faq .faq-nav__num {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--accent-deep);
}

.page-faq .faq-nav__hint {
  margin: 16px 0 0;
  padding-left: 10px;
  border-left: 2px solid var(--line);
  color: var(--muted);
  font-size: 12.5px;
  line-height: 1.8;
}

.page-faq .faq-group {
  border-top: 1px solid var(--line);
  padding-top: clamp(20px, 3vw, 30px);
  scroll-margin-top: 96px;
}

.page-faq .faq-group + .faq-group {
  margin-top: clamp(36px, 6vw, 64px);
}

.page-faq .section-head {
  display: grid;
  gap: 6px;
  margin: 0 0 18px;
}

.page-faq .section-head__num {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--accent);
}

.page-faq .section-head__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(20px, 2.8vw, 28px);
  font-weight: 700;
  line-height: 1.25;
  color: var(--text);
}

.page-faq .section-head__sub {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.7;
  color: var(--muted);
}

.page-faq .faq-group__figure {
  margin: 0 0 20px;
  border: 1px solid var(--line);
  background: var(--surface);
}

.page-faq .faq-group__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.page-faq .faq-group__figure figcaption {
  padding: 8px 12px;
  border-top: 1px solid var(--line-soft);
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--muted);
}

/* 折叠条目 */
.page-faq .qa-list {
  display: grid;
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .qa {
  border-top: 1px solid var(--line-soft);
  transition: background 180ms ease, box-shadow 180ms ease;
}

.page-faq .qa[open] {
  background: var(--bg-2);
  box-shadow: inset 2px 0 0 var(--accent);
}

.page-faq .qa__q {
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr) 16px;
  gap: 10px;
  align-items: start;
  padding: 13px 12px;
  cursor: pointer;
  list-style: none;
  font-size: 15px;
  line-height: 1.6;
}

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

.page-faq .qa__q::after {
  content: "";
  justify-self: end;
  width: 8px;
  height: 8px;
  margin-top: 7px;
  border-right: 1.5px solid var(--accent);
  border-bottom: 1.5px solid var(--accent);
  transform: rotate(45deg);
  transition: transform 180ms ease;
}

.page-faq .qa[open] .qa__q::after {
  transform: rotate(225deg);
}

.page-faq .qa__num {
  padding-top: 4px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.05em;
  color: var(--score);
}

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

.page-faq .qa__text {
  color: var(--text);
  font-weight: 500;
}

.page-faq .qa__a {
  padding: 0 14px 16px 14px;
  color: var(--muted);
  font-size: 14.5px;
  line-height: 1.8;
  animation: faq-reveal 200ms ease both;
}

.page-faq .qa__a p {
  margin: 0 0 8px;
}

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

.page-faq .qa__next {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--muted);
}

.page-faq .qa-link {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid var(--accent-deep);
}

.page-faq .qa-link:hover,
.page-faq .qa-link:focus-visible {
  color: var(--text);
  border-bottom-color: var(--accent);
}

@keyframes faq-reveal {
  from {
    opacity: 0;
    transform: translateY(-6px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

/* 分流入口 */
.page-faq .faq-support {
  border-top: 1px solid var(--line);
}

.page-faq .faq-support__grid {
  display: grid;
  gap: 14px;
}

.page-faq .faq-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: clamp(16px, 2.4vw, 24px);
  border: 1px solid var(--line);
  background: var(--surface);
}

.page-faq .faq-card--accent {
  border-color: var(--accent-deep);
  background:
    linear-gradient(135deg, rgba(59, 242, 196, 0.14), rgba(6, 18, 15, 0) 62%),
    var(--surface);
}

.page-faq .faq-card__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 700;
  color: var(--text);
}

.page-faq .faq-card__text {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.8;
}

.page-faq .faq-card__action {
  margin: auto 0 0;
  padding-top: 6px;
}

.page-faq .faq-support__foot {
  margin: 16px 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.8;
  color: var(--muted);
}

@media (min-width: 760px) {
  .page-faq .faq-support__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .qa__q {
    grid-template-columns: 34px minmax(0, 1fr) 18px;
    padding: 14px 16px;
    gap: 12px;
  }

  .page-faq .qa__a {
    padding: 0 18px 18px 62px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.22fr) minmax(0, 0.78fr);
    gap: clamp(24px, 3.4vw, 48px);
  }
}

@media (min-width: 1000px) {
  .page-faq .faq-body {
    grid-template-columns: var(--faq-rail) minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-nav {
    position: sticky;
    top: 96px;
  }

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

@media (prefers-reduced-motion: reduce) {
  .page-faq .qa__a {
    animation: none;
  }

  .page-faq .qa__q::after,
  .page-faq .qa,
  .page-faq .faq-nav__link,
  .page-faq .faq-board__item {
    transition: none;
  }
}
<<<END>>>