.page-faq {
  --faq-line: 1px solid rgba(139, 154, 146, 0.24);
  --faq-strong: 3px solid var(--charcoal);
  --faq-soft-text: rgba(244, 247, 241, 0.78);
  --faq-dim-text: rgba(244, 247, 241, 0.6);
  background-color: var(--pitch-ink);
  color: var(--cold-white);
  padding-bottom: 72px;
  overflow-x: hidden;
}

.page-faq img {
  max-width: 100%;
  display: block;
}

.page-faq .breadcrumb {
  margin: 22px 0 0;
}

.page-faq .breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
}

.page-faq .breadcrumb li + li::before {
  content: "—";
  color: var(--steel);
  margin-right: 8px;
}

.page-faq .breadcrumb a {
  color: var(--electric);
  text-decoration: none;
  border-bottom: 1px solid rgba(43, 228, 192, 0.4);
}

.page-faq .breadcrumb a:hover,
.page-faq .breadcrumb a:focus-visible {
  color: var(--signal);
  border-bottom-color: var(--signal);
}

.page-faq .breadcrumb [aria-current="page"] {
  color: var(--dim-text, rgba(244, 247, 241, 0.6));
}

.page-faq a:focus-visible {
  outline: 2px solid var(--electric);
  outline-offset: 3px;
}

/* 首屏 */
.page-faq .faq-hero {
  padding: 26px 0 44px;
}

.page-faq .faq-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 26px;
  align-items: start;
}

.page-faq .faq-hero-copy .eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--signal);
  margin: 0;
}

.page-faq h1 {
  font-family: var(--font-display);
  font-size: clamp(32px, 7vw, 62px);
  font-weight: 700;
  line-height: 1.06;
  letter-spacing: 0.005em;
  margin: 14px 0 18px;
  max-width: 20ch;
}

.page-faq .faq-lede {
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--faq-soft-text);
  max-width: 58ch;
  margin: 0 0 22px;
}

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

.page-faq .faq-hero-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  list-style: none;
  margin: 0;
  padding: 0;
  background-color: rgba(139, 154, 146, 0.22);
  border: var(--faq-strong);
  box-shadow: var(--hard-shadow);
}

.page-faq .faq-hero-stats li {
  background-color: var(--pitch-deep);
  padding: 14px 12px;
  display: grid;
  gap: 4px;
  min-width: 0;
}

.page-faq .faq-stat-num {
  font-family: var(--font-mono);
  font-size: clamp(24px, 5vw, 34px);
  line-height: 1;
  color: var(--signal);
  font-weight: 700;
}

.page-faq .faq-stat-key {
  font-size: 12px;
  line-height: 1.5;
  color: var(--faq-dim-text);
}

.page-faq .faq-hero-media {
  margin: 0;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background-color: var(--pitch-deep);
}

.page-faq .faq-hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.92) contrast(1.06);
}

/* 主题直达带 */
.page-faq .faq-finder {
  background-color: var(--pitch-deep);
  border-top: var(--faq-strong);
  border-bottom: var(--faq-strong);
}

.page-faq .faq-finder-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 18px;
  padding: 14px 0;
}

.page-faq .faq-finder-title {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--steel);
  margin: 0;
  flex: 0 0 auto;
}

.page-faq .faq-finder-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-faq .faq-finder-list a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  font-size: 13.5px;
  color: var(--cold-white);
  text-decoration: none;
  border: 1px solid rgba(139, 154, 146, 0.4);
  background-color: rgba(7, 19, 14, 0.5);
  transition: border-color 160ms var(--ease), color 160ms var(--ease), box-shadow 160ms var(--ease);
}

.page-faq .faq-finder-list a:hover,
.page-faq .faq-finder-list a:focus-visible {
  border-color: var(--signal);
  color: var(--signal);
  box-shadow: 4px 4px 0 var(--charcoal);
}

.page-faq .faq-finder-idx {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--signal);
  letter-spacing: 0.06em;
}

/* 双栏 */
.page-faq .faq-shell {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 34px;
  padding-top: 36px;
}

.page-faq .faq-index {
  border-top: var(--faq-strong);
  border-top-color: var(--signal);
  padding-top: 14px;
  min-width: 0;
}

.page-faq .faq-index-title {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--steel);
  margin: 0 0 14px;
}

.page-faq .faq-index-group + .faq-index-group {
  margin-top: 16px;
  padding-top: 14px;
  border-top: var(--faq-line);
}

.page-faq .faq-index-head {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  margin: 0 0 8px;
  font-size: 13px;
  font-weight: 600;
  color: var(--cold-white);
}

.page-faq .faq-index-nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
}

.page-faq .faq-index-nav a {
  display: block;
  padding: 6px 10px 6px 11px;
  font-size: 13.5px;
  line-height: 1.5;
  color: var(--faq-soft-text);
  text-decoration: none;
  border-left: 2px solid transparent;
  transition: color 160ms var(--ease), border-color 160ms var(--ease), background-color 160ms var(--ease);
}

.page-faq .faq-index-nav a:hover,
.page-faq .faq-index-nav a:focus-visible {
  color: var(--signal);
  border-left-color: var(--signal);
  background-color: rgba(216, 255, 62, 0.07);
}

/* 答案区 */
.page-faq .faq-answers {
  display: grid;
  gap: 46px;
  min-width: 0;
}

.page-faq .faq-group {
  scroll-margin-top: 24px;
}

.page-faq .faq-group-head {
  display: grid;
  gap: 8px;
  padding-bottom: 16px;
  border-bottom: var(--faq-strong);
}

.page-faq .faq-group-num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.24em;
  color: var(--signal);
}

.page-faq .faq-group-head h2 {
  font-family: var(--font-serif);
  font-size: clamp(21px, 4.2vw, 30px);
  line-height: 1.35;
  font-weight: 700;
  margin: 0;
  color: var(--cold-white);
}

.page-faq .faq-group-lede {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--faq-dim-text);
  max-width: 60ch;
}

.page-faq .faq-figure {
  margin: 22px 0 6px;
  overflow: hidden;
  background-color: var(--pitch-deep);
}

.page-faq .faq-figure img {
  width: 100%;
  height: auto;
  aspect-ratio: 10 / 7;
  object-fit: cover;
  filter: saturate(0.9) contrast(1.05);
}

/* 折叠问答 */
.page-faq .qa {
  border-bottom: var(--faq-line);
  scroll-margin-top: 24px;
}

.page-faq .qa summary {
  display: block;
  position: relative;
  cursor: pointer;
  list-style: none;
  padding: 16px 38px 16px 0;
  font-size: 15.5px;
  font-weight: 600;
  line-height: 1.65;
  color: var(--cold-white);
  transition: color 160ms var(--ease);
}

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

.page-faq .qa summary::after {
  content: "+";
  position: absolute;
  right: 4px;
  top: 50%;
  transform: translateY(-50%);
  width: 24px;
  height: 24px;
  display: grid;
  place-items: center;
  font-family: var(--font-mono);
  font-size: 16px;
  line-height: 1;
  color: var(--signal);
  border: 1px solid rgba(216, 255, 62, 0.45);
}

.page-faq .qa[open] summary::after {
  content: "–";
  background-color: var(--signal);
  color: var(--pitch-ink);
  border-color: var(--signal);
}

.page-faq .qa summary:hover,
.page-faq .qa summary:focus-visible {
  color: var(--signal);
}

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

.page-faq .qa-body {
  padding: 0 0 20px;
  max-width: 66ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--faq-soft-text);
}

.page-faq .qa-body p {
  margin: 0 0 12px;
}

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

.page-faq .faq-link {
  display: inline-block;
  color: var(--electric);
  text-decoration: none;
  border-bottom: 1px solid rgba(43, 228, 192, 0.45);
  font-size: 14px;
}

.page-faq .faq-link::after {
  content: " →";
  font-family: var(--font-mono);
}

.page-faq .faq-link:hover,
.page-faq .faq-link:focus-visible {
  color: var(--signal);
  border-bottom-color: var(--signal);
}

.page-faq .qa-checklist {
  list-style: none;
  margin: 12px 0 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-faq .qa-checklist li {
  position: relative;
  padding-left: 20px;
  font-size: 14.5px;
  line-height: 1.7;
}

.page-faq .qa-checklist li::before {
  content: "▸";
  position: absolute;
  left: 2px;
  color: var(--amber);
}

.page-faq .qa-steps {
  counter-reset: faqstep;
  list-style: none;
  margin: 14px 0 16px;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-faq .qa-steps li {
  counter-increment: faqstep;
  display: grid;
  grid-template-columns: 28px minmax(0, 1fr);
  gap: 12px;
  align-items: start;
  font-size: 14.5px;
  line-height: 1.7;
}

.page-faq .qa-steps li::before {
  content: counter(faqstep, decimal-leading-zero);
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--signal);
  border: 1px solid rgba(216, 255, 62, 0.45);
  display: grid;
  place-items: center;
  height: 24px;
}

/* 联系面板 */
.page-faq .faq-contact-panel {
  margin-top: 22px;
  padding: 20px;
  border: var(--faq-strong);
  box-shadow: var(--hard-shadow);
  background-image: linear-gradient(152deg, var(--pitch-deep) 0%, #0a2118 60%, #07130e 100%);
}

.page-faq .faq-contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
  margin: 0 0 18px;
  padding: 0;
}

.page-faq .faq-contact-item {
  border-left: 2px solid rgba(216, 255, 62, 0.4);
  padding-left: 12px;
  min-width: 0;
}

.page-faq .faq-contact-item dt {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--steel);
  margin-bottom: 4px;
}

.page-faq .faq-contact-item dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 14.5px;
  line-height: 1.5;
  color: var(--cold-white);
  word-break: break-word;
}

.page-faq .faq-contact-note {
  margin: 0 0 18px;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--faq-dim-text);
  max-width: 56ch;
}

.page-faq .faq-contact-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* 媒体查询 */
@media (min-width: 620px) {
  .page-faq .faq-contact-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px 18px;
  }

  .page-faq .faq-contact-panel {
    padding: 24px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero {
    padding: 34px 0 52px;
  }

  .page-faq .faq-hero-grid {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
    gap: 46px;
  }

  .page-faq .faq-hero-media {
    aspect-ratio: 5 / 6;
  }

  .page-faq .faq-shell {
    grid-template-columns: 258px minmax(0, 1fr);
    gap: 48px;
    padding-top: 44px;
  }

  .page-faq .faq-index {
    position: sticky;
    top: 18px;
    max-height: calc(100vh - 36px);
    overflow-y: auto;
    padding-right: 6px;
  }

  .page-faq .faq-answers {
    gap: 54px;
  }

  .page-faq .qa summary {
    font-size: 16.5px;
    padding: 18px 42px 18px 0;
  }

  .page-faq .qa-body {
    font-size: 15.5px;
  }
}

@media (min-width: 1180px) {
  .page-faq .faq-index {
    padding-right: 10px;
  }

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

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

.page-faq {
  --dim-text: currentColor;
}