.page-faq {
  --faq-toc-w: 236px;
  --faq-col-gap: clamp(32px, 5vw, 80px);
  --faq-ink-soft: #2A231F;
  background: var(--paper);
  color: var(--ink);
}

.page-faq .breadcrumb {
  margin-top: clamp(20px, 3vw, 36px);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  padding: clamp(28px, 5vw, 56px) 0 clamp(34px, 5vw, 58px);
  border-bottom: 0.5px solid var(--rule);
}

.page-faq .faq-hero .eyebrow {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--milan);
}

.page-faq .faq-hero h1 {
  margin: 16px 0 0;
  max-width: 15ch;
  font-size: clamp(32px, 6.4vw, 64px);
  font-weight: 900;
  line-height: 1.02;
  letter-spacing: -0.02em;
  color: var(--ink);
}

.page-faq .faq-hero .lede {
  margin: 24px 0 0;
  max-width: 62ch;
  font-size: clamp(16px, 1.6vw, 18px);
  line-height: 1.85;
  color: var(--faq-ink-soft);
}

.page-faq .faq-hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
  margin: 26px 0 0;
  font-size: 13px;
  color: var(--muted);
}

/* ---------- 双列骨架 ---------- */
.page-faq .faq-layout {
  padding-top: clamp(34px, 5vw, 72px);
}

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

.page-faq .faq-toc {
  margin-bottom: clamp(34px, 5vw, 52px);
  padding: 2px 0 2px 14px;
  border-left: 2px solid var(--milan);
}

.page-faq .faq-toc-title {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--muted);
}

.page-faq .faq-toc-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 2px;
}

.page-faq .faq-toc-list a {
  display: flex;
  gap: 10px;
  align-items: baseline;
  padding: 9px 10px;
  border-left: 2px solid transparent;
  font-size: 15px;
  line-height: 1.45;
  color: var(--muted);
  text-decoration: none;
  transition: color 0.22s var(--ease), border-color 0.22s var(--ease), background 0.22s var(--ease);
}

.page-faq .faq-toc-list a .num {
  font-size: 12px;
  color: var(--ember);
}

.page-faq .faq-toc-list a:hover,
.page-faq .faq-toc-list a:focus-visible {
  color: var(--ink);
  border-left-color: var(--milan);
  background: rgba(180, 31, 46, 0.05);
}

/* ---------- 分组 ---------- */
.page-faq .faq-group {
  scroll-margin-top: 108px;
  margin-bottom: clamp(56px, 7vw, 96px);
}

.page-faq .faq-group:last-child {
  margin-bottom: 0;
}

.page-faq .faq-group-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 12px 16px;
  padding-top: 18px;
  margin-bottom: 22px;
  border-top: 0.5px solid var(--rule);
}

.page-faq .faq-group-num {
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 700;
  line-height: 1;
  color: var(--milan);
}

.page-faq .faq-group-head h2 {
  margin: 0;
  font-size: clamp(23px, 3vw, 31px);
  font-weight: 900;
  line-height: 1.15;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.page-faq .faq-group-note {
  flex-basis: 100%;
  margin: 0;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.7;
  color: var(--muted);
}

.page-faq .faq-group-split {
  display: grid;
  gap: clamp(24px, 3vw, 34px);
}

.page-faq .faq-figure {
  margin: 0 0 clamp(24px, 3vw, 32px);
}

.page-faq .faq-figure--timeline {
  margin: 0;
}

/* ---------- 问答条目 ---------- */
.page-faq .qa-list {
  border-bottom: 0.5px solid var(--rule);
}

.page-faq .qa {
  border-top: 0.5px solid var(--rule);
}

.page-faq .qa-q {
  display: flex;
  gap: 16px;
  align-items: baseline;
  padding: 18px 0 14px;
  cursor: pointer;
  list-style: none;
  font-size: 18px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--ink);
  transition: color 0.2s var(--ease);
}

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

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

.page-faq .qa-num {
  flex: none;
  min-width: 30px;
  font-size: 14px;
  font-weight: 600;
  color: var(--ember);
}

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

.page-faq .qa-a {
  padding: 0 0 20px 46px;
  max-width: 62ch;
}

.page-faq .qa-a p {
  margin: 0 0 10px;
  font-size: 17px;
  line-height: 1.85;
  color: var(--faq-ink-soft);
}

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

.page-faq .qa-a a {
  color: var(--milan);
  text-decoration: none;
  border-bottom: 1px solid rgba(180, 31, 46, 0.35);
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

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

/* ---------- 深绿指标面板 ---------- */
.page-faq .metric-band {
  margin: 0 0 clamp(26px, 3vw, 36px);
  padding: clamp(22px, 3.4vw, 38px);
  background: var(--grass);
  color: var(--paper);
  border-radius: var(--radius-card);
}

.page-faq .metric-band-lead {
  margin: 0 0 18px;
  font-size: 15px;
  line-height: 1.7;
  color: rgba(244, 239, 230, 0.8);
}

.page-faq .metric-grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(132px, 1fr));
  gap: 1px;
  background: rgba(244, 239, 230, 0.18);
  border: 0.5px solid rgba(244, 239, 230, 0.18);
}

.page-faq .metric-cell {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 12px 14px;
  background: var(--grass);
}

.page-faq .metric-cell .m-name {
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 600;
  color: var(--cyan);
}

.page-faq .metric-cell .m-unit {
  font-size: 12px;
  line-height: 1.5;
  color: rgba(244, 239, 230, 0.66);
}

/* ---------- 关键数字行 ---------- */
.page-faq .key-nums {
  list-style: none;
  margin: clamp(24px, 3vw, 32px) 0 0;
  padding: 0;
  max-width: 62ch;
}

.page-faq .key-nums li {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 18px;
  padding: 10px 0;
  border-top: 0.5px solid var(--rule);
  font-size: 14px;
  color: var(--muted);
}

.page-faq .key-nums li:last-child {
  border-bottom: 0.5px solid var(--rule);
}

.page-faq .key-nums .num {
  font-family: var(--font-mono);
  font-size: 17px;
  font-weight: 700;
  color: var(--milan);
  white-space: nowrap;
}

/* ---------- 收尾 ---------- */
.page-faq .faq-outro {
  margin-top: clamp(48px, 6vw, 88px);
  padding: clamp(28px, 4.4vw, 48px);
  background: var(--panel);
  color: var(--paper);
  border-left: 4px solid var(--milan);
  border-radius: var(--radius-card);
}

.page-faq .faq-outro h2 {
  margin: 0;
  font-size: clamp(22px, 3vw, 30px);
  font-weight: 900;
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: #FBF8F2;
}

.page-faq .faq-outro p {
  margin: 14px 0 0;
  max-width: 58ch;
  font-size: 16px;
  line-height: 1.8;
  color: rgba(244, 239, 230, 0.82);
}

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

.page-faq .faq-outro-meta {
  margin-top: 22px;
  font-family: var(--font-mono);
  font-size: 13px;
  color: rgba(244, 239, 230, 0.6);
}

/* ---------- 响应式 ---------- */
@media (min-width: 980px) {
  .page-faq .faq-layout {
    display: grid;
    grid-template-columns: var(--faq-toc-w) minmax(0, 1fr);
    column-gap: var(--faq-col-gap);
    align-items: start;
  }

  .page-faq .faq-toc {
    position: sticky;
    top: 112px;
    margin-bottom: 0;
  }

  .page-faq .faq-toc-list {
    grid-template-columns: minmax(0, 1fr);
  }

  .page-faq .faq-group-split {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    align-items: start;
  }
}

@media (max-width: 640px) {
  .page-faq .qa-q {
    gap: 12px;
    font-size: 16.5px;
  }

  .page-faq .qa-num {
    min-width: 26px;
    font-size: 13px;
  }

  .page-faq .qa-a {
    padding-left: 0;
  }

  .page-faq .qa-a p {
    font-size: 16px;
  }

  .page-faq .faq-outro-actions .btn {
    width: 100%;
    justify-content: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-toc-list a,
  .page-faq .qa-q,
  .page-faq .qa-a a {
    transition: none;
  }
}
<<<END>>>