.page-faq {
  --faq-panel: rgba(24, 38, 70, .55);
  --faq-panel-open: rgba(24, 38, 70, .84);
  display: block;
  padding-bottom: 84px;
  background:
    radial-gradient(880px 460px at 94% -6%, rgba(41, 214, 232, .11), transparent 68%),
    radial-gradient(720px 420px at -14% 32%, rgba(124, 92, 255, .10), transparent 71%);
}

.page-faq .faq-crumb {
  padding-top: 26px;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-intro {
  padding-bottom: 34px;
}

.page-faq .faq-intro__grid {
  display: grid;
  gap: 22px;
  margin-top: 16px;
}

.page-faq .faq-title {
  margin: 10px 0 0;
  line-height: 1.02;
  letter-spacing: -.01em;
}

.page-faq .faq-intro__lead .prose {
  margin: 16px 0 0;
}

.page-faq .faq-intro__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}

.page-faq .faq-intro__meta {
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 20px 20px 18px;
  align-self: start;
}

.page-faq .faq-facts {
  list-style: none;
  margin: 12px 0 0;
  padding: 0;
}

.page-faq .faq-facts li {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: baseline;
  gap: 8px 14px;
  padding: 11px 0;
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-facts li:first-child {
  padding-top: 0;
}

.page-faq .faq-facts li:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

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

.page-faq .faq-facts__v {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 15px;
  color: var(--paper);
  letter-spacing: .01em;
}

/* ---------- 主体两栏 ---------- */
.page-faq .faq-body {
  display: grid;
  gap: 24px;
  padding-top: 6px;
}

.page-faq .faq-topics__list {
  list-style: none;
  margin: 10px 0 0;
  padding: 0 0 6px;
  display: flex;
  gap: 8px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
}

.page-faq .faq-topics__list li {
  flex: 0 0 auto;
}

.page-faq .faq-topic {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 42px;
  padding: 9px 15px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(24, 38, 70, .5);
  color: var(--paper);
  font-size: 14px;
  text-decoration: none;
  white-space: nowrap;
  transition: border-color .18s ease, color .18s ease, background .18s ease;
}

.page-faq .faq-topic:hover,
.page-faq .faq-topic:focus-visible {
  border-color: var(--cyan);
  color: var(--cyan);
}

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

.page-faq .faq-topic__n {
  color: var(--cyan);
  font-size: 12px;
  letter-spacing: .08em;
}

.page-faq .faq-filter {
  margin-bottom: 22px;
}

.page-faq .faq-groups {
  display: grid;
  gap: 34px;
}

.page-faq .faq-group {
  border-top: 1px solid var(--line);
  padding-top: 22px;
  scroll-margin-top: 96px;
}

.page-faq .faq-group__index {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--orange);
}

.page-faq .faq-group__lede {
  margin: 8px 0 0;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.75;
  color: var(--fog);
}

.page-faq .faq-group__list {
  display: grid;
  gap: 10px;
  margin-top: 18px;
}

/* ---------- 折叠问答 ---------- */
.page-faq .qa {
  border: 1px solid var(--line);
  border-left: 3px solid transparent;
  border-radius: var(--r-md);
  background: var(--faq-panel);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  transition: border-color .18s ease, background .18s ease;
}

.page-faq .qa[open] {
  border-left-color: var(--lime);
  background: var(--faq-panel-open);
}

.page-faq .qa__q {
  list-style: none;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 12px;
  align-items: start;
  min-height: 44px;
  padding: 16px 16px 16px 14px;
  cursor: pointer;
}

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

.page-faq .qa__q:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: -2px;
  border-radius: var(--r-md);
}

.page-faq .qa__num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 12px;
  line-height: 1.8;
  color: var(--fog);
  letter-spacing: .06em;
}

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

.page-faq .qa__label {
  font-size: 15px;
  line-height: 1.7;
  color: var(--paper);
  font-weight: 600;
}

.page-faq .qa__mark {
  position: relative;
  width: 14px;
  height: 14px;
  margin-top: 6px;
}

.page-faq .qa__mark::before,
.page-faq .qa__mark::after {
  content: "";
  position: absolute;
  background: var(--cyan);
  border-radius: 2px;
  transition: transform .18s ease, opacity .18s ease, background .18s ease;
}

.page-faq .qa__mark::before {
  left: 0;
  top: 6px;
  width: 14px;
  height: 2px;
}

.page-faq .qa__mark::after {
  left: 6px;
  top: 0;
  width: 2px;
  height: 14px;
}

.page-faq .qa[open] .qa__mark::before {
  background: var(--lime);
}

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

.page-faq .qa__body {
  padding: 0 16px 18px 16px;
}

.page-faq .qa__verdict {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 13px;
  line-height: 1.75;
  color: var(--paper);
  border-left: 2px solid var(--orange);
  padding-left: 12px;
}

.page-faq .qa__more {
  margin: 14px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--fog);
}

.page-faq .qa__more a,
.page-faq .qa__body a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(41, 214, 232, .4);
}

.page-faq .qa__more a:hover,
.page-faq .qa__body a:hover,
.page-faq .qa__more a:focus-visible,
.page-faq .qa__body a:focus-visible {
  border-bottom-color: var(--cyan);
  outline: none;
}

.page-faq .steps {
  list-style: none;
  counter-reset: step;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-faq .steps li {
  position: relative;
  padding-left: 30px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--fog);
}

.page-faq .steps li::before {
  counter-increment: step;
  content: counter(step);
  position: absolute;
  left: 0;
  top: 3px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  border: 1px solid var(--line);
  background: rgba(41, 214, 232, .12);
  color: var(--cyan);
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1;
  display: grid;
  place-items: center;
}

/* ---------- 配图 ---------- */
.page-faq .faq-figure {
  margin: 20px 0 0;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  overflow: hidden;
  background: var(--hold);
  box-shadow: var(--shadow);
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  filter: saturate(.95) contrast(1.04);
}

.page-faq .faq-figure .media-cap {
  display: block;
  padding: 11px 14px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--fog);
  border-top: 1px solid var(--line);
}

/* ---------- 联系区块 ---------- */
.page-faq .faq-reach {
  margin-top: 18px;
  padding: 22px 20px;
  display: grid;
  gap: 6px;
  justify-items: start;
  border: 1px solid var(--line);
  border-left: 3px solid var(--orange);
  border-radius: var(--r-lg);
  background: var(--faq-panel);
}

.page-faq .faq-reach__line {
  margin: 0;
}

.page-faq .faq-reach__link {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 16px;
  letter-spacing: .01em;
  color: var(--paper);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  padding-bottom: 2px;
  transition: color .18s ease, border-color .18s ease;
}

.page-faq .faq-reach__link:hover,
.page-faq .faq-reach__link:focus-visible {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
  outline: none;
}

.page-faq .faq-reach__note {
  margin: 8px 0 12px;
  max-width: 56ch;
  font-size: 14px;
  line-height: 1.75;
  color: var(--fog);
}

/* ---------- 桌面布局 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-intro__grid {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, .9fr);
    gap: 30px;
    align-items: start;
  }

  .page-faq .qa__q {
    padding: 18px 20px 18px 18px;
    gap: 14px;
  }

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

  .page-faq .qa__body {
    padding: 0 20px 20px 46px;
  }

  .page-faq .faq-group__list {
    gap: 12px;
  }
}

@media (min-width: 1000px) {
  .page-faq {
    padding-bottom: 110px;
  }

  .page-faq .faq-body {
    grid-template-columns: 196px minmax(0, 1fr);
    gap: 46px;
    align-items: start;
  }

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

  .page-faq .faq-topics__list {
    flex-direction: column;
    gap: 2px;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-faq .faq-topics__list li {
    flex: 1 1 auto;
  }

  .page-faq .faq-topic {
    width: 100%;
    justify-content: flex-start;
    min-height: 44px;
    padding: 10px 10px 10px 13px;
    border: 0;
    border-left: 2px solid var(--line);
    border-radius: 0;
    background: transparent;
    font-size: 14px;
    transition: border-color .18s ease, background .18s ease, color .18s ease;
  }

  .page-faq .faq-topic:hover,
  .page-faq .faq-topic:focus-visible {
    border-left-color: var(--cyan);
    background: rgba(41, 214, 232, .07);
    color: var(--paper);
  }

  .page-faq .faq-topic__n {
    color: var(--orange);
  }

  .page-faq .faq-groups {
    gap: 40px;
  }

  .page-faq .qa__verdict {
    font-size: 13.5px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .qa,
  .page-faq .qa__mark::before,
  .page-faq .qa__mark::after,
  .page-faq .faq-topic,
  .page-faq .faq-reach__link {
    transition: none;
  }
}