.page-faq {
  background: var(--paper);
  color: var(--ink-deep);
}

/* ---------- 首屏：深底档案脊标 ---------- */
.page-faq .faq-hero {
  background: var(--ink);
  color: var(--paper);
  border-bottom: 2px solid var(--seal);
  padding: 40px 0 36px;
}

.page-faq .faq-hero__grid {
  gap: 32px;
}

.page-faq .faq-hero__main .archive-code {
  display: block;
  margin-bottom: 14px;
}

.page-faq .faq-hero__title {
  font-family: var(--font-display);
  font-size: clamp(30px, 6.4vw, 48px);
  font-weight: 900;
  line-height: 1.18;
  letter-spacing: -0.02em;
  margin: 0 0 18px;
  color: var(--paper-light);
  max-width: 22ch;
}

.page-faq .faq-hero__lede {
  font-family: var(--font-read);
  font-size: 17px;
  line-height: 1.8;
  color: rgba(244, 239, 230, 0.9);
  margin: 0 0 16px;
  max-width: 56ch;
}

.page-faq .faq-hero__note {
  font-family: var(--font-read);
  font-size: 13px;
  line-height: 1.8;
  color: rgba(244, 239, 230, 0.62);
  margin: 0;
  max-width: 52ch;
  padding-left: 12px;
  border-left: 2px solid var(--seal);
}

.page-faq .faq-steps {
  border-top: 1px solid rgba(244, 239, 230, 0.24);
  padding-top: 16px;
}

.page-faq .faq-steps__title {
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--paper);
  margin: 0 0 12px;
}

.page-faq .faq-steps__list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-faq .faq-steps__item {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding: 12px 0;
  border-bottom: 1px solid rgba(244, 239, 230, 0.16);
}

.page-faq .faq-steps__no {
  flex: none;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.02em;
  color: var(--seal-light);
  padding-top: 2px;
}

.page-faq .faq-steps__text {
  font-family: var(--font-read);
  font-size: 14px;
  line-height: 1.75;
  color: rgba(244, 239, 230, 0.82);
}

/* ---------- 主体骨架 ---------- */
.page-faq .faq-shell {
  padding-top: 48px;
  padding-bottom: 64px;
}

.page-faq .faq-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 24px;
}

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

/* ---------- 左侧问题索引 ---------- */
.page-faq .faq-index {
  min-width: 0;
}

.page-faq .faq-index__title {
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--gray-ink);
  margin: 0 0 8px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--rule);
}

.page-faq .faq-index__scroll {
  display: flex;
  flex-wrap: nowrap;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 8px;
  -webkit-overflow-scrolling: touch;
}

.page-faq .faq-index__group {
  display: contents;
}

.page-faq .faq-index__group-name {
  display: none;
}

.page-faq .faq-index__link {
  flex: none;
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.02em;
  color: var(--gray-ink);
  text-decoration: none;
  padding: 8px 12px;
  background: var(--paper-light);
  border: 1px solid var(--rule);
  border-bottom: 2px solid transparent;
  min-height: 44px;
  line-height: 26px;
  transition: border-color 160ms linear, color 160ms linear, background-color 160ms linear;
}

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  color: var(--ink);
  border-bottom-color: var(--seal);
  background: var(--paper);
}

/* ---------- 分组 ---------- */
.page-faq .faq-group {
  margin-bottom: 56px;
  scroll-margin-top: 88px;
}

.page-faq .faq-group__head {
  border-top: 2px solid var(--ink);
  border-bottom: 1px solid var(--rule);
  padding: 16px 0 14px;
  margin-bottom: 4px;
}

.page-faq .faq-group__head .archive-code {
  display: block;
  margin-bottom: 8px;
  color: var(--gray-ink);
}

.page-faq .faq-group__title {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.01em;
  line-height: 1.35;
  margin: 0;
  color: var(--ink);
}

.page-faq .faq-group__intro {
  font-family: var(--font-read);
  font-size: 15px;
  line-height: 1.8;
  color: var(--gray-ink);
  margin: 12px 0 0;
  max-width: 62ch;
}

/* ---------- 问答条目 ---------- */
.page-faq .qa {
  border-top: 1px solid var(--rule);
  padding: 22px 0 18px;
  scroll-margin-top: 88px;
}

.page-faq .faq-group__list > .qa:first-child {
  border-top: 0;
  padding-top: 18px;
}

.page-faq .qa__head {
  display: flex;
  gap: 12px;
  align-items: flex-start;
}

.page-faq .qa__num {
  flex: none;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--ink-mid);
  background: var(--paper-light);
  border: 1px solid var(--rule);
  padding: 3px 8px;
  line-height: 1.6;
}

.page-faq .qa__q {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  line-height: 1.55;
  letter-spacing: -0.01em;
  color: var(--ink);
  margin: 0;
}

.page-faq .qa__a {
  font-family: var(--font-read);
  font-size: 16px;
  line-height: 1.8;
  color: var(--ink-deep);
  margin: 12px 0 0;
  max-width: 68ch;
}

.page-faq .qa__a .num {
  font-family: var(--font-mono);
  font-size: 0.94em;
  letter-spacing: 0.02em;
}

.page-faq .qa__src {
  margin: 14px 0 0;
}

.page-faq .src-tag {
  display: inline-flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.02em;
  color: var(--bronze);
  text-decoration: none;
  border: 1px solid var(--bronze-light);
  padding: 5px 10px;
  min-height: 30px;
  transition: border-color 160ms linear, color 160ms linear;
}

.page-faq .src-tag:hover,
.page-faq .src-tag:focus-visible {
  border-color: var(--seal);
  color: var(--seal);
}

.page-faq .src-tag__meta {
  display: none;
}

.page-faq .src-tag:hover .src-tag__meta,
.page-faq .src-tag:focus-visible .src-tag__meta {
  display: inline;
}

/* ---------- 折叠补充 ---------- */
.page-faq .qa-more {
  margin-top: 14px;
  border-left: 2px solid var(--rule);
  padding-left: 14px;
  max-width: 68ch;
}

.page-faq .qa-more__summary {
  display: flex;
  align-items: center;
  gap: 8px;
  min-height: 44px;
  font-family: var(--font-display);
  font-size: 14px;
  color: var(--ink-mid);
  cursor: pointer;
  list-style: none;
}

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

.page-faq .qa-more__summary::before {
  content: "+";
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--seal);
}

.page-faq .qa-more[open] .qa-more__summary::before {
  content: "–";
}

.page-faq .qa-more__panel {
  font-family: var(--font-read);
  font-size: 15px;
  line-height: 1.8;
  color: var(--gray-ink);
  padding: 0 0 12px;
}

.page-faq .qa-more__panel .num {
  font-family: var(--font-mono);
  letter-spacing: 0.02em;
}

/* ---------- 图片 ---------- */
.page-faq .qa-figure {
  margin: 8px 0 56px;
}

.page-faq .qa-figure--square {
  max-width: 520px;
}

.page-faq .qa-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--rule);
}

/* ---------- 页尾分发 ---------- */
.page-faq .faq-routes {
  border-top: 2px solid var(--ink);
  padding-top: 22px;
  margin-bottom: 8px;
}

.page-faq .faq-routes__title {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--ink);
  margin: 0 0 10px;
}

.page-faq .faq-routes__intro {
  font-family: var(--font-read);
  font-size: 15px;
  line-height: 1.8;
  color: var(--gray-ink);
  margin: 0 0 18px;
  max-width: 62ch;
}

.page-faq .faq-routes__list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-faq .faq-routes__item {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 14px 0;
  border-bottom: 1px solid var(--rule);
}

.page-faq .faq-routes__item .link-arrow {
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 700;
}

.page-faq .faq-routes__desc {
  font-family: var(--font-read);
  font-size: 14px;
  line-height: 1.7;
  color: var(--gray-ink);
}

/* ---------- 桌面端 ---------- */
@media (min-width: 900px) {
  .page-faq .faq-hero {
    padding: 64px 0 56px;
  }

  .page-faq .faq-hero__grid {
    gap: 48px;
    align-items: start;
  }

  .page-faq .faq-steps {
    border-top: 0;
    padding-top: 4px;
    border-left: 1px solid rgba(244, 239, 230, 0.24);
    padding-left: 24px;
  }

  .page-faq .faq-shell {
    padding-top: 72px;
    padding-bottom: 96px;
  }

  .page-faq .faq-layout {
    grid-template-columns: 220px minmax(0, 1fr);
    gap: 56px;
    align-items: start;
  }

  .page-faq .faq-index {
    position: sticky;
    top: 104px;
  }

  .page-faq .faq-index__scroll {
    display: block;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-faq .faq-index__group {
    display: block;
    margin-bottom: 18px;
  }

  .page-faq .faq-index__group-name {
    display: block;
    font-family: var(--font-read);
    font-size: 13px;
    color: var(--gray-ink);
    margin: 0 0 6px;
    letter-spacing: 0.02em;
  }

  .page-faq .faq-index__link {
    display: block;
    background: transparent;
    border: 0;
    border-left: 2px solid transparent;
    padding: 5px 10px;
    min-height: 32px;
    line-height: 22px;
  }

  .page-faq .faq-index__link:hover,
  .page-faq .faq-index__link:focus-visible {
    border-left-color: var(--seal);
    background: var(--paper-light);
    border-bottom-color: transparent;
  }

  .page-faq .faq-group {
    margin-bottom: 72px;
  }

  .page-faq .faq-group__title {
    font-size: 24px;
  }

  .page-faq .qa {
    padding: 26px 0 20px;
  }

  .page-faq .qa__q {
    font-size: 19px;
  }

  .page-faq .qa-figure {
    margin-bottom: 72px;
  }

  .page-faq .faq-routes__item {
    flex-direction: row;
    align-items: baseline;
    justify-content: space-between;
    gap: 24px;
  }

  .page-faq .faq-routes__item .link-arrow {
    flex: none;
    min-width: 160px;
  }

  .page-faq .faq-routes__desc {
    text-align: right;
  }
}

@media (min-width: 1100px) {
  .page-faq .faq-layout {
    gap: 72px;
  }
}
</style>
<<<END>>>