.page-faq {
  --faq-gap: clamp(16px, 2.2vw, 26px);
  --faq-pad: clamp(14px, 2vw, 20px);
  background: var(--surface);
  color: var(--text);
}

/* ---------- 面包屑 ---------- */
.page-faq .crumb {
  padding: clamp(14px, 2.2vw, 22px) 0 0;
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--text-soft);
}
.page-faq .crumb a {
  color: var(--text-soft);
  text-decoration: none;
}
.page-faq .crumb a:hover,
.page-faq .crumb a:focus-visible {
  color: var(--neon);
}
.page-faq .crumb-sep {
  margin: 0 8px;
  color: var(--rule-strong);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  padding-bottom: clamp(22px, 3.4vw, 40px);
  border-bottom: 1px solid var(--rule);
  background-color: var(--surface-deep);
  background-image:
    repeating-linear-gradient(90deg, var(--grid-line) 0 1px, transparent 1px 64px),
    repeating-linear-gradient(0deg, var(--grid-line) 0 1px, transparent 1px 64px);
  background-repeat: repeat;
}

.page-faq .faq-hero-grid {
  display: grid;
  gap: clamp(20px, 3vw, 40px);
  padding-top: clamp(20px, 3.4vw, 38px);
}

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

.page-faq h1 {
  margin: 14px 0 0;
  font-size: clamp(1.82rem, 4.2vw, 3rem);
  line-height: 1.15;
  letter-spacing: -0.02em;
  font-weight: 900;
  max-width: 20ch;
}

.page-faq .faq-lede {
  margin: 18px 0 0;
  max-width: 42ch;
  font-size: 16.5px;
  line-height: 1.75;
  color: var(--text-soft);
}

.page-faq .faq-stats {
  display: flex;
  flex-wrap: wrap;
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--rule-strong);
}
.page-faq .faq-stats li {
  flex: 1 1 42%;
  min-width: 118px;
  padding: 13px 14px 13px 0;
  border-right: 1px solid var(--rule);
}
.page-faq .faq-stats li:last-child {
  border-right: 0;
}
.page-faq .fs-num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(1.45rem, 2.6vw, 1.95rem);
  line-height: 1.1;
  color: var(--accent);
}
.page-faq .fs-label {
  display: block;
  margin-top: 6px;
  font-size: 12.5px;
  letter-spacing: 0.1em;
  color: var(--slate);
}

.page-faq .faq-hero-figure {
  margin: 0;
}
.page-faq .faq-hero-figure .media-frame {
  border: 2px solid var(--rule-strong);
  box-shadow: var(--shadow-hard);
}
.page-faq .faq-hero-figure .media-cap {
  margin-top: 10px;
}

/* ---------- 主题 chips ---------- */
.page-faq .faq-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: clamp(22px, 3.4vw, 34px);
  padding-top: clamp(16px, 2.4vw, 22px);
  border-top: 1px solid var(--rule);
}
.page-faq .faq-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 13px;
  border: 1px solid var(--rule-strong);
  background: var(--surface);
  color: var(--text-soft);
  font-size: 13px;
  letter-spacing: 0.03em;
  text-decoration: none;
  transition: border-color 160ms ease, color 160ms ease, transform 160ms ease;
}
.page-faq .faq-chip span {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--gold);
}
.page-faq .faq-chip:hover,
.page-faq .faq-chip:focus-visible {
  border-color: var(--neon);
  color: var(--text);
  transform: translateY(-2px);
}

/* ---------- 问答组 ---------- */
.page-faq .faq-groups {
  padding-top: clamp(24px, 4vw, 44px);
  padding-bottom: clamp(10px, 2vw, 20px);
}

.page-faq .faq-group {
  position: relative;
  margin-bottom: var(--faq-gap);
  border: 2px solid var(--rule-strong);
  background: var(--surface-raised);
  scroll-margin-top: 96px;
  transition: box-shadow 180ms ease, transform 180ms ease;
}
.page-faq .faq-group[open] {
  box-shadow: var(--shadow-hard);
}
.page-faq .faq-group[open]::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  width: 4px;
  background: var(--accent);
  pointer-events: none;
}

.page-faq .fg-head {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 15px var(--faq-pad);
  cursor: pointer;
  list-style: none;
  border-bottom: 1px solid var(--rule);
}
.page-faq .fg-head::-webkit-details-marker {
  display: none;
}
.page-faq .faq-group:not([open]) .fg-head {
  border-bottom-color: transparent;
}
.page-faq .fg-head:hover {
  background: rgba(59, 240, 160, 0.05);
}

.page-faq .fg-no {
  flex: none;
  padding: 3px 7px;
  border: 1px solid var(--gold);
  color: var(--gold);
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.14em;
}
.page-faq .fg-title {
  flex: 1 1 auto;
  font-size: clamp(1.02rem, 2vw, 1.24rem);
  font-weight: 800;
  letter-spacing: -0.01em;
  line-height: 1.4;
}
.page-faq .fg-count {
  flex: none;
  padding: 2px 9px;
  border: 1px solid var(--rule);
  border-radius: 999px;
  color: var(--slate);
  font-family: var(--font-mono);
  font-size: 11.5px;
  white-space: nowrap;
}
.page-faq .faq-group[open] .fg-count {
  color: var(--accent);
  border-color: rgba(59, 240, 160, 0.5);
}

.page-faq .fg-chev {
  position: relative;
  flex: none;
  width: 12px;
  height: 12px;
}
.page-faq .fg-chev::before,
.page-faq .fg-chev::after {
  content: "";
  position: absolute;
  background: var(--accent-2);
  transition: transform 180ms ease;
}
.page-faq .fg-chev::before {
  top: 5px;
  left: 0;
  width: 12px;
  height: 2px;
}
.page-faq .fg-chev::after {
  top: 0;
  left: 5px;
  width: 2px;
  height: 12px;
}
.page-faq .faq-group[open] .fg-chev::after {
  transform: scaleX(0);
}

.page-faq .fg-body {
  padding: clamp(10px, 1.6vw, 16px) var(--faq-pad) clamp(14px, 2vw, 20px);
}

.page-faq .fg-layout {
  display: grid;
  gap: var(--faq-gap);
}

.page-faq .fg-aside .media-frame {
  border: 2px solid var(--rule-strong);
}
.page-faq .fg-aside .note {
  margin-top: 10px;
}

/* ---------- 单条问答 ---------- */
.page-faq .qa {
  border-top: 1px solid var(--rule);
}
.page-faq .qa:first-child {
  border-top: 0;
}

.page-faq .qa-q {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 13px 6px 13px 10px;
  cursor: pointer;
  list-style: none;
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.6;
  color: var(--text);
  transition: background-color 160ms ease;
}
.page-faq .qa-q::-webkit-details-marker {
  display: none;
}
.page-faq .qa-q:hover {
  background: rgba(241, 246, 250, 0.04);
}
.page-faq .qa-q:focus-visible {
  outline: 2px solid var(--neon);
  outline-offset: -2px;
}
.page-faq .qa-no {
  flex: none;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.06em;
  color: var(--slate);
}
.page-faq .qa-text {
  flex: 1 1 auto;
}

.page-faq .qa[open] > .qa-q {
  background: rgba(59, 240, 160, 0.06);
  box-shadow: inset 3px 0 0 var(--accent);
}
.page-faq .qa[open] .qa-no {
  color: var(--accent);
}

.page-faq .qa-a {
  padding: 2px 6px 16px 38px;
}
.page-faq .qa-a p {
  margin: 0;
  max-width: 64ch;
  font-size: 15.5px;
  line-height: 1.75;
  color: var(--text-soft);
}

/* ---------- 底部提示 ---------- */
.page-faq .faq-more {
  padding: clamp(26px, 4vw, 52px) 0 clamp(34px, 5vw, 64px);
}
.page-faq .faq-more-card {
  display: grid;
  gap: 18px;
  padding: clamp(20px, 3vw, 32px);
  border: 2px solid var(--rule-strong);
  border-left: 4px solid var(--accent-2);
  background: var(--surface-deep);
}
.page-faq .fmc-copy h2 {
  margin: 0;
  font-size: clamp(1.25rem, 2.4vw, 1.7rem);
  font-weight: 800;
  letter-spacing: -0.015em;
  line-height: 1.3;
}
.page-faq .fmc-copy p {
  margin: 12px 0 0;
  max-width: 52ch;
  font-size: 15.5px;
  line-height: 1.75;
  color: var(--text-soft);
}
.page-faq .fmc-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
}

/* ---------- 中屏 ---------- */
@media (min-width: 640px) {
  .page-faq .faq-stats li {
    flex: 1 1 0;
  }
  .page-faq .faq-more-card {
    grid-template-columns: minmax(0, 1fr);
  }
}

/* ---------- 桌面 ---------- */
@media (min-width: 900px) {
  .page-faq .faq-hero-grid {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
    align-items: end;
  }
  .page-faq .fg-layout--split {
    grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr);
    align-items: start;
  }
  .page-faq .faq-more-card {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
  }
  .page-faq .fmc-links {
    justify-content: flex-end;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-chip,
  .page-faq .faq-group,
  .page-faq .fg-chev::before,
  .page-faq .fg-chev::after,
  .page-faq .qa-q {
    transition: none;
  }
  .page-faq .faq-chip:hover,
  .page-faq .faq-chip:focus-visible {
    transform: none;
  }
}
<<<END>>>