.page-faq {
  --faq-rule: rgba(23, 24, 28, 0.14);
  --faq-soft: var(--state-blue-soft);
  --faq-gold: var(--gold);
}

/* 面包屑 */
.page-faq .crumbs {
  margin: 22px 0 4px;
}
.page-faq .crumbs ol {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 13px;
  color: var(--ink-soft);
}
.page-faq .crumbs li + li::before {
  content: "/";
  margin-right: 8px;
  color: var(--cool-gray);
}
.page-faq .crumbs a {
  color: var(--eagle-red);
  text-decoration: none;
}
.page-faq .crumbs a:hover {
  text-decoration: underline;
}

/* 首屏 */
.page-faq .faq-hero {
  display: grid;
  gap: 30px;
  padding: 14px 0 38px;
}
.page-faq .faq-hero__eyebrow {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--faq-gold);
}
.page-faq .faq-hero h1 {
  margin: 0 0 18px;
  font-family: var(--font-head);
  font-size: clamp(28px, 7vw, 54px);
  line-height: 1.14;
  letter-spacing: -0.035em;
  color: var(--graphite);
  max-width: 16em;
}
.page-faq .faq-hero .lede {
  max-width: 36em;
  margin: 0;
  font-size: 16px;
  line-height: 1.88;
  color: var(--ink-soft);
}
.page-faq .faq-shot {
  margin: 0;
}
.page-faq .faq-shot img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 7 / 6;
  object-fit: cover;
  clip-path: polygon(0 0, 100% 0, 100% 88%, 0 100%);
}

/* 分类索引 */
.page-faq .faq-dex {
  position: sticky;
  top: var(--head-h-sm);
  z-index: 6;
  margin: 0 0 34px;
  padding: 10px 0;
  background: var(--paper);
  border-top: 1px solid var(--faq-rule);
  border-bottom: 1px solid var(--faq-rule);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}
.page-faq .faq-dex::-webkit-scrollbar {
  display: none;
}
.page-faq .faq-dex ol {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.page-faq .faq-dex a {
  display: block;
  white-space: nowrap;
  padding: 7px 14px;
  border: 1px solid var(--cool-gray);
  border-radius: 999px;
  font-size: 13px;
  color: var(--ink-soft);
  text-decoration: none;
  transition: background 0.18s ease, color 0.18s ease, border-color 0.18s ease;
}
.page-faq .faq-dex a:hover {
  border-color: var(--faq-gold);
  color: var(--graphite);
}
.page-faq .faq-dex a.is-current {
  background: var(--eagle-red);
  border-color: var(--eagle-red);
  color: var(--paper);
}

/* 问题分组 */
.page-faq .faq-group {
  padding-bottom: 6px;
}
.page-faq .faq-group + .faq-group {
  margin-top: 54px;
  padding-top: 44px;
  border-top: 6px solid var(--faq-soft);
}
.page-faq .faq-group__head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin-bottom: 10px;
}
.page-faq .faq-group__num {
  flex: none;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--faq-gold);
}
.page-faq .faq-group h2 {
  margin: 0;
  font-family: var(--font-head);
  font-size: clamp(22px, 4.6vw, 32px);
  line-height: 1.25;
  letter-spacing: -0.03em;
  color: var(--graphite);
}
.page-faq .faq-group__hint {
  margin: 0 0 20px;
  max-width: 38em;
  font-size: 14px;
  line-height: 1.8;
  color: var(--ink-soft);
}

/* 问答条目 */
.page-faq .qa {
  border-top: 1px solid var(--faq-rule);
}
.page-faq .qa:last-of-type {
  border-bottom: 1px solid var(--faq-rule);
}
.page-faq .qa > summary {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 18px 0 18px 16px;
  list-style: none;
  cursor: pointer;
  box-shadow: inset 3px 0 0 transparent;
  transition: box-shadow 0.18s ease;
}
.page-faq .qa > summary::-webkit-details-marker {
  display: none;
}
.page-faq .qa[open] > summary {
  box-shadow: inset 3px 0 0 var(--faq-gold);
}
.page-faq .qa__n {
  flex: none;
  padding-top: 3px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--faq-gold);
}
.page-faq .qa__q {
  font-family: var(--font-head);
  font-size: 16px;
  font-weight: 600;
  line-height: 1.6;
  color: var(--graphite);
}
.page-faq .qa > summary::after {
  content: "+";
  flex: none;
  margin-left: auto;
  padding-top: 1px;
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1;
  color: var(--cool-gray);
}
.page-faq .qa[open] > summary::after {
  content: "\2212";
  color: var(--faq-gold);
}
.page-faq .qa__body {
  padding: 0 0 22px 30px;
}
.page-faq .qa__body p {
  margin: 0;
  max-width: 36em;
  font-size: 15px;
  line-height: 1.9;
  color: var(--ink-soft);
}
.page-faq .qa__body a,
.page-faq .faq-contact a {
  color: var(--eagle-red);
  text-decoration: none;
  border-bottom: 1px solid rgba(142, 27, 34, 0.35);
}
.page-faq .qa__body a:hover,
.page-faq .faq-contact a:hover {
  border-bottom-color: var(--eagle-red);
}

/* 联系区块 */
.page-faq .faq-contact {
  display: grid;
  gap: 26px;
}
.page-faq .faq-contact__text p {
  margin: 0 0 16px;
  max-width: 36em;
  font-size: 15px;
  line-height: 1.9;
  color: var(--ink-soft);
}
.page-faq .faq-prep {
  counter-reset: prep;
  margin: 0 0 22px;
  padding: 0;
  max-width: 36em;
  list-style: none;
}
.page-faq .faq-prep li {
  counter-increment: prep;
  position: relative;
  padding: 11px 0 11px 36px;
  border-bottom: 1px dashed var(--cool-gray);
  font-size: 15px;
  line-height: 1.7;
  color: var(--graphite);
}
.page-faq .faq-prep li::before {
  content: counter(prep, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--faq-gold);
}
.page-faq .faq-shot--prep img {
  aspect-ratio: 3 / 2;
  clip-path: none;
  border-radius: var(--radius);
}

/* 窄屏收敛 */
@media (max-width: 420px) {
  .page-faq .qa > summary {
    gap: 8px;
    padding-left: 12px;
  }
  .page-faq .qa__body {
    padding-left: 20px;
  }
  .page-faq .faq-hero h1 {
    font-size: 27px;
  }
}

/* 宽屏布局 */
@media (min-width: 900px) {
  .page-faq .faq-hero {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: end;
    gap: 52px;
    padding: 42px 0 62px;
  }
  .page-faq .faq-shot img {
    aspect-ratio: 7 / 5.4;
  }
  .page-faq .faq-dex {
    top: var(--head-h);
  }
  .page-faq .faq-group__hint {
    margin-left: 32px;
  }
  .page-faq .qa__body {
    padding-left: 46px;
  }
  .page-faq .faq-contact {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 56px;
    align-items: start;
  }
  .page-faq .faq-contact__text p,
  .page-faq .faq-prep {
    margin-left: 32px;
  }
}

/* 减少动态 */
@media (prefers-reduced-motion: reduce) {
  .page-faq .qa > summary,
  .page-faq .faq-dex a {
    transition: none;
  }
}
<<<END>>>