.page-faq {
  --faq-rail-w: 234px;
  --faq-cyan-ink: #0E6672;
  --faq-gap: 26px;
  position: relative;
  padding-bottom: 84px;
}

.page-faq .faq-crumb {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 22px 0 0;
  font-size: 12.5px;
  letter-spacing: .08em;
  color: var(--muted);
}

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

.page-faq .faq-crumb a:hover {
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 引导区 ---------- */

.page-faq .faq-intro {
  position: relative;
  padding: 26px 0 30px;
  border-bottom: 1px solid var(--wire);
}

.page-faq .faq-intro::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: -1px;
  width: 96px;
  height: 2px;
  background: var(--amber);
}

.page-faq .faq-h1 {
  margin: 14px 0 0;
  font-size: clamp(27px, 7vw, 45px);
  font-weight: 800;
  line-height: 1.16;
  letter-spacing: -.02em;
  color: var(--paper);
}

.page-faq .faq-lede {
  margin: 16px 0 0;
  max-width: 62ch;
  font-size: 15.5px;
  line-height: 1.78;
  color: var(--muted);
}

.page-faq .faq-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 20px;
}

.page-faq .faq-figure {
  margin: 26px 0 0;
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--wire);
  border-radius: var(--radius);
}

.page-faq .faq-figure--inline {
  margin: 22px 0 4px;
}

/* ---------- 骨架 ---------- */

.page-faq .faq-shell {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--faq-gap);
  margin-top: 32px;
}

.page-faq .faq-rail {
  border: 1px solid var(--wire);
  background: var(--rail);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-faq .faq-rail-title {
  display: block;
  padding: 11px 16px;
  font-size: 11.5px;
  letter-spacing: .2em;
  color: var(--muted);
  border-bottom: 1px solid var(--wire);
}

.page-faq .faq-rail-list {
  display: flex;
  gap: 6px;
  margin: 0;
  padding: 12px;
  list-style: none;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
}

.page-faq .faq-rail-item a {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  white-space: nowrap;
  border: 1px solid transparent;
  border-radius: var(--radius);
  font-size: 13px;
  letter-spacing: .05em;
  color: var(--muted);
  text-decoration: none;
  transition: color .2s ease, border-color .2s ease, background-color .2s ease;
}

.page-faq .faq-rail-num {
  font-size: 11px;
  color: var(--ember);
}

.page-faq .faq-rail-item a:hover {
  color: var(--cyan);
  border-color: var(--wire);
}

.page-faq .faq-rail-item a[aria-current="location"] {
  color: var(--cyan);
  border-color: var(--cyan);
  background-color: rgba(34, 211, 224, .08);
}

.page-faq .faq-rail-item a[aria-current="location"] .faq-rail-num {
  color: var(--cyan);
}

.page-faq .faq-flow {
  min-width: 0;
}

/* ---------- 分组 ---------- */

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

.page-faq .faq-group + .faq-group {
  margin-top: 48px;
  padding-top: 36px;
  border-top: 1px dashed var(--wire);
}

.page-faq .faq-group-head {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 2px 0 2px 14px;
  border-left: 2px solid var(--cyan);
  margin-bottom: 18px;
}

.page-faq .faq-group-num {
  font-size: 12px;
  color: var(--ember);
  letter-spacing: .1em;
}

.page-faq .faq-group-title {
  margin: 0;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: .18em;
  color: var(--paper);
}

/* ---------- 问答条目 ---------- */

.page-faq .qa {
  border: 1px solid var(--wire);
  border-radius: var(--radius);
  background-color: var(--panel);
  overflow: hidden;
  transition: border-color .2s ease;
}

.page-faq .qa + .qa {
  margin-top: 10px;
}

.page-faq .qa[open] {
  border-color: rgba(34, 211, 224, .5);
}

.page-faq .qa-head {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 15px 16px;
  cursor: pointer;
  list-style: none;
}

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

.page-faq .qa-head::marker {
  content: "";
}

.page-faq .qa-q {
  flex: 1 1 auto;
  min-width: 0;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.55;
  color: var(--paper);
  transition: color .2s ease;
}

.page-faq .qa-head:hover .qa-q {
  color: var(--cyan);
}

.page-faq .qa-flag {
  flex: none;
  padding: 2px 8px;
  border: 1px solid var(--ember);
  border-radius: 999px;
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--ember);
}

.page-faq .qa-sign {
  position: relative;
  flex: none;
  width: 14px;
  height: 14px;
}

.page-faq .qa-sign::before,
.page-faq .qa-sign::after {
  content: "";
  position: absolute;
  background-color: var(--cyan);
  transition: transform .2s ease;
}

.page-faq .qa-sign::before {
  left: 0;
  right: 0;
  top: 6px;
  height: 1.5px;
}

.page-faq .qa-sign::after {
  top: 0;
  bottom: 0;
  left: 6px;
  width: 1.5px;
}

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

/* ---------- 答案区（纸面） ---------- */

.page-faq .qa-a {
  padding: 18px 18px 20px;
  background-color: var(--paper);
  color: var(--black);
  border-top: 1px dashed var(--paper-2);
  font-size: 14.5px;
  line-height: 1.78;
}

.page-faq .qa-a p {
  margin: 0;
}

.page-faq .qa-a p + p {
  margin-top: 10px;
}

.page-faq .qa-steps {
  margin: 14px 0 0;
  padding: 0;
  list-style: none;
  counter-reset: faqstep;
}

.page-faq .qa-steps li {
  position: relative;
  counter-increment: faqstep;
  padding-left: 38px;
  font-size: 14px;
  line-height: 1.72;
}

.page-faq .qa-steps li + li {
  margin-top: 10px;
}

.page-faq .qa-steps li::before {
  content: counter(faqstep, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 1px;
  padding: 1px 6px;
  border: 1px solid var(--paper-2);
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--ember);
}

.page-faq .qa-more {
  margin: 14px 0 0;
  text-align: right;
  font-size: 13px;
}

.page-faq .qa-more a {
  color: var(--faq-cyan-ink);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .qa-more a:hover {
  color: var(--ember);
}

/* ---------- 数据纸块 ---------- */

.page-faq .faq-facts {
  margin-bottom: 20px;
}

.page-faq .faq-facts-title {
  margin: 0 0 12px;
  font-size: 12.5px;
  letter-spacing: .14em;
  color: #5C5142;
}

.page-faq .faq-facts-list {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-facts-list li {
  display: flex;
  align-items: baseline;
  gap: 10px;
  font-size: 14px;
  color: var(--black);
}

.page-faq .faq-facts-list .mono {
  flex: none;
  min-width: 62px;
  font-size: 17px;
  font-weight: 700;
  color: var(--faq-cyan-ink);
}

/* ---------- 结尾行动 ---------- */

.page-faq .faq-cta {
  margin-top: 52px;
}

.page-faq .faq-cta-title {
  margin: 0;
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -.01em;
  color: var(--paper);
}

.page-faq .faq-cta-text {
  margin: 12px 0 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--muted);
  max-width: 58ch;
}

.page-faq .faq-cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 20px;
}

.page-faq .faq-cta-note {
  margin: 18px 0 0;
  padding-top: 14px;
  border-top: 1px dashed var(--wire);
  font-size: 12.5px;
  letter-spacing: .04em;
  color: var(--muted);
}

/* ---------- 响应式 ---------- */

@media (min-width: 620px) {
  .page-faq .faq-intro {
    padding: 34px 0 38px;
  }

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

  .page-faq .faq-facts-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
  }

  .page-faq .faq-facts-list li {
    flex-direction: column;
    gap: 6px;
    font-size: 13.5px;
  }

  .page-faq .faq-cta {
    padding: 30px 28px;
  }

  .page-faq .qa-head {
    padding: 16px 20px;
  }

  .page-faq .qa-a {
    padding: 20px 22px 22px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-shell {
    grid-template-columns: var(--faq-rail-w) minmax(0, 1fr);
    gap: 46px;
    margin-top: 42px;
  }

  .page-faq .faq-rail {
    position: sticky;
    top: 92px;
  }

  .page-faq .faq-rail-list {
    flex-direction: column;
    gap: 2px;
    padding: 10px;
    overflow: visible;
  }

  .page-faq .faq-rail-item a {
    white-space: normal;
    width: 100%;
    padding: 9px 10px;
  }

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

  .page-faq .faq-group + .faq-group {
    margin-top: 58px;
    padding-top: 44px;
  }
}

@media (min-width: 1100px) {
  .page-faq .qa-q {
    font-size: 15.5px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .qa-sign::before,
  .page-faq .qa-sign::after,
  .page-faq .qa-q,
  .page-faq .qa-rail-item a {
    transition: none;
  }
}
</final>
<<<END_PAGE_CSS>>>