.page-faq {
  --faq-line: rgba(124, 107, 255, 0.22);
  --faq-line-strong: rgba(75, 63, 228, 0.5);
  --faq-surface: rgba(10, 16, 48, 0.44);
  --faq-surface-open: rgba(20, 28, 74, 0.62);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  padding-top: clamp(26px, 4.5vw, 52px);
}

.page-faq .faq-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 26px;
  margin-top: 20px;
}

.page-faq .faq-hero__lead .page-title {
  margin: 12px 0 0;
  max-width: 20ch;
}

.page-faq .faq-hero__lead .lede {
  margin-top: 18px;
  max-width: 60ch;
}

.page-faq .faq-hero__side {
  display: flex;
  flex-wrap: wrap;
  gap: 30px;
}

.page-faq .faq-hero__count {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--grid);
}

.page-faq .faq-hero__count .mono {
  font-size: clamp(30px, 5vw, 42px);
  line-height: 1;
  color: var(--white);
  letter-spacing: -0.02em;
}

.page-faq .faq-hero__visual {
  margin: clamp(28px, 4vw, 44px) 0 0;
  border-radius: var(--radius);
  overflow: hidden;
}

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

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1fr) 230px;
    gap: 64px;
    align-items: center;
  }
  .page-faq .faq-hero__side {
    flex-direction: column;
    gap: 26px;
    padding-left: 26px;
    border-left: 1px solid var(--line);
  }
}

/* ---------- 主体：索引 + 问答列 ---------- */
.page-faq .faq-body {
  padding-top: clamp(48px, 7vw, 92px);
}

.page-faq .faq-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 30px;
  align-items: start;
}

@media (min-width: 1000px) {
  .page-faq .faq-layout {
    grid-template-columns: 214px minmax(0, 1fr);
    gap: 72px;
  }
}

.page-faq .faq-index {
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 16px;
  background: rgba(20, 28, 74, 0.38);
}

.page-faq .faq-index__label {
  margin: 0 0 12px;
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--grid);
}

.page-faq .faq-index__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.page-faq .faq-index__link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 7px 10px;
  border-radius: 8px;
  font-size: 13.5px;
  color: var(--silver);
  text-decoration: none;
  transition: color 0.24s var(--ease), background 0.24s var(--ease);
}

.page-faq .faq-index__tick {
  flex: none;
  width: 14px;
  height: 1px;
  background: var(--grid);
  transition: width 0.24s var(--ease), background 0.24s var(--ease);
}

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  color: var(--white);
  background: rgba(75, 63, 228, 0.24);
}

.page-faq .faq-index__link:hover .faq-index__tick,
.page-faq .faq-index__link:focus-visible .faq-index__tick {
  width: 24px;
  background: var(--signal);
}

@media (min-width: 1000px) {
  .page-faq .faq-index {
    position: sticky;
    top: 96px;
    padding: 20px 18px;
    background: rgba(10, 16, 48, 0.62);
    backdrop-filter: blur(6px);
  }
  .page-faq .faq-index__list {
    flex-direction: column;
    gap: 3px;
  }
}

/* ---------- 主题分组 ---------- */
.page-faq .faq-group {
  scroll-margin-top: 104px;
}

.page-faq .faq-group + .faq-group {
  margin-top: clamp(48px, 6.5vw, 84px);
  padding-top: clamp(34px, 5vw, 60px);
  border-top: 1px solid var(--line-soft);
}

.page-faq .faq-group__head {
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr) auto;
  align-items: center;
  gap: 14px;
  margin-bottom: 22px;
}

.page-faq .faq-group__icon {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border: 1px solid var(--faq-line);
  border-radius: 11px;
  color: var(--nebula);
  background: rgba(75, 63, 228, 0.14);
}

.page-faq .faq-group__icon svg {
  display: block;
}

.page-faq .faq-group__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(20px, 2.7vw, 28px);
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--white);
}

.page-faq .faq-group__count {
  font-size: 13px;
  color: var(--grid);
}

.page-faq .faq-group__visual {
  margin: 0 0 24px;
  border-radius: 14px;
  overflow: hidden;
}

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

/* ---------- 折叠问答 ---------- */
.page-faq .faq-list {
  display: flex;
  flex-direction: column;
  gap: 9px;
}

.page-faq .faq-item {
  border: 1px solid var(--line-soft);
  border-radius: 12px;
  background: var(--faq-surface);
  overflow: hidden;
  transition: border-color 0.24s var(--ease), background 0.24s var(--ease);
}

.page-faq .faq-item:hover {
  border-color: var(--faq-line);
}

.page-faq .faq-item[open] {
  border-color: var(--faq-line-strong);
  background: var(--faq-surface-open);
}

.page-faq .faq-item__summary {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 16px 18px;
  list-style: none;
  cursor: pointer;
  font-size: 15.5px;
  line-height: 1.7;
  color: var(--white);
  transition: border-color 0.24s var(--ease);
  border-bottom: 1px solid transparent;
}

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

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

.page-faq .faq-item[open] .faq-item__summary {
  border-bottom-color: rgba(75, 63, 228, 0.52);
}

.page-faq .faq-item__summary .fold__index {
  flex: none;
  font-size: 12px;
  color: var(--grid);
  padding-top: 5px;
}

.page-faq .faq-item__q {
  flex: 1 1 auto;
  min-width: 0;
}

.page-faq .faq-item__mark {
  flex: none;
  position: relative;
  width: 16px;
  height: 16px;
  margin-top: 6px;
}

.page-faq .faq-item__mark::before,
.page-faq .faq-item__mark::after {
  content: "";
  position: absolute;
  background: var(--grid);
  transition: transform 0.28s var(--ease), background 0.28s var(--ease);
}

.page-faq .faq-item__mark::before {
  top: 50%;
  left: 0;
  width: 100%;
  height: 1px;
  transform: translateY(-50%);
}

.page-faq .faq-item__mark::after {
  top: 0;
  left: 50%;
  width: 1px;
  height: 100%;
  transform: translateX(-50%);
}

.page-faq .faq-item:hover .faq-item__mark::before,
.page-faq .faq-item:hover .faq-item__mark::after {
  background: var(--nebula);
}

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

.page-faq .faq-item[open] .faq-item__mark::after {
  transform: translateX(-50%) scaleY(0);
}

.page-faq .faq-item__body {
  padding: 16px 18px 20px;
}

@media (min-width: 700px) {
  .page-faq .faq-item__body {
    padding-left: 60px;
  }
}

.page-faq .faq-item__body p {
  margin: 0;
  max-width: 68ch;
  font-size: 15px;
  line-height: 1.95;
  color: var(--silver);
}

.page-faq .faq-item__body .mono {
  color: var(--white);
}

/* ---------- 结尾入口 ---------- */
.page-faq .faq-next {
  padding-block: clamp(56px, 8vw, 104px);
}

.page-faq .faq-next__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 30px;
}

.page-faq .faq-next__copy h2 {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-size: clamp(24px, 3.4vw, 36px);
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--white);
}

.page-faq .faq-next__copy p {
  margin: 16px 0 0;
  max-width: 52ch;
  font-size: 16px;
  line-height: 1.9;
  color: var(--silver);
}

.page-faq .faq-next__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-faq .faq-next__panel {
  padding: 24px;
}

.page-faq .faq-next__panel-title {
  margin: 0 0 14px;
  font-size: 11.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--grid);
}

.page-faq .faq-next__links {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 3px;
}

.page-faq .faq-next__links a {
  display: block;
  padding: 10px 12px;
  border-radius: 9px;
  font-size: 14.5px;
  color: var(--silver);
  text-decoration: none;
  border-left: 1px solid var(--line);
  transition: color 0.24s var(--ease), background 0.24s var(--ease), border-color 0.24s var(--ease);
}

.page-faq .faq-next__links a:hover,
.page-faq .faq-next__links a:focus-visible {
  color: var(--white);
  background: rgba(75, 63, 228, 0.22);
  border-left-color: var(--signal);
}

@media (min-width: 860px) {
  .page-faq .faq-next__grid {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
    gap: 64px;
    align-items: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item,
  .page-faq .faq-item__summary,
  .page-faq .faq-item__mark::before,
  .page-faq .faq-item__mark::after,
  .page-faq .faq-index__link,
  .page-faq .faq-index__tick,
  .page-faq .faq-next__links a {
    transition-duration: 0.01ms;
  }
}
</PAGE_CSS>>>