.page-faq {
  --faq-toc-w: 288px;
  padding-bottom: 72px;
}

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

/* 首屏 */
.page-faq .faq-hero {
  display: grid;
  gap: 28px;
  padding: 28px 0 40px;
  border-bottom: 1px solid rgba(42, 84, 128, 0.55);
}

.page-faq .faq-hero h1 {
  margin: 12px 0 16px;
  font-size: clamp(30px, 5.4vw, 46px);
  line-height: 1.18;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--ice);
}

.page-faq .faq-hero .lede {
  max-width: 46ch;
  color: var(--mist);
  font-size: 16px;
  line-height: 1.75;
}

.page-faq .faq-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 22px;
  margin: 24px 0 0;
  color: var(--mist);
}

.page-faq .faq-hero__media {
  border: 1px solid var(--line-blue);
  border-radius: var(--radius-card);
  overflow: hidden;
  background: var(--ink-black);
}

.page-faq .faq-hero__media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* 两栏结构 */
.page-faq .faq-layout {
  display: grid;
  gap: 32px;
  padding-top: 36px;
}

/* 左侧目录 */
.page-faq .faq-toc {
  padding: 20px 16px 16px;
  border: 1px solid rgba(42, 84, 128, 0.5);
  border-radius: var(--radius-card);
  background: var(--ink-black);
}

.page-faq .faq-toc__title {
  margin: 0 0 14px;
  font-family: var(--font-condensed);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--mist);
}

.page-faq .faq-toc__list {
  display: flex;
  flex-direction: row;
  gap: 8px;
  margin: 0;
  padding: 0 0 6px;
  list-style: none;
  overflow-x: auto;
}

.page-faq .faq-toc__list > li {
  flex: 0 0 auto;
}

.page-faq .faq-toc__link {
  display: grid;
  grid-template-columns: auto auto;
  gap: 8px;
  align-items: baseline;
  padding: 10px 12px;
  border-bottom: 2px solid var(--line-blue);
  color: var(--mist);
  font-size: 15px;
  line-height: 1.4;
  white-space: nowrap;
  text-decoration: none;
  transition: color 0.18s ease-out, border-color 0.18s ease-out,
    background-color 0.18s ease-out;
}

.page-faq .faq-toc__index {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--lime-soft);
}

.page-faq .faq-toc__link:hover,
.page-faq .faq-toc__link:focus-visible {
  color: var(--ice);
  border-bottom-color: var(--lime);
  background: rgba(184, 255, 61, 0.07);
  outline: none;
}

.page-faq .faq-toc__link:focus-visible {
  outline: 2px solid var(--lime);
  outline-offset: 2px;
}

/* 问答卡片 */
.page-faq .faq-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
  min-width: 0;
}

.page-faq .faq-card {
  border: 1px solid rgba(42, 84, 128, 0.55);
  border-radius: var(--radius-card);
  background: var(--panel);
  overflow: hidden;
  transition: border-color 0.18s ease-out;
}

.page-faq .faq-card[open] {
  border-color: rgba(184, 255, 61, 0.45);
}

.page-faq .faq-card > summary {
  display: flex;
  align-items: center;
  gap: 14px;
  min-height: 72px;
  padding: 18px 20px;
  cursor: pointer;
  list-style: none;
}

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

.page-faq .faq-card > summary::after {
  content: "+";
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 20px;
  line-height: 1;
  color: var(--mist);
}

.page-faq .faq-card[open] > summary::after {
  content: "–";
  color: var(--lime);
}

.page-faq .faq-card > summary:hover .faq-card__q {
  color: var(--lime-soft);
}

.page-faq .faq-card > summary:focus-visible {
  outline: 2px solid var(--lime);
  outline-offset: -2px;
}

.page-faq .faq-card__num {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--lime);
}

.page-faq .faq-card__q {
  flex: 1 1 auto;
  font-size: 17px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--ice);
  transition: color 0.18s ease-out;
}

.page-faq .faq-card__body {
  padding: 0 20px 22px;
}

.page-faq .faq-card__inner {
  padding-left: 16px;
  border-left: 3px solid var(--signal);
}

.page-faq .faq-card__lead {
  margin: 0 0 16px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--mist);
}

.page-faq .faq-steps {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin: 0 0 16px;
  padding: 0;
  list-style: none;
  counter-reset: faqstep;
}

.page-faq .faq-steps > li {
  display: grid;
  grid-template-columns: 32px minmax(0, 1fr);
  gap: 12px;
  counter-increment: faqstep;
  font-size: 15px;
  line-height: 1.7;
  color: var(--ice);
}

.page-faq .faq-steps > li::before {
  content: counter(faqstep, decimal-leading-zero);
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  color: var(--lime-soft);
  padding-top: 3px;
}

.page-faq .faq-note {
  margin: 0 0 16px;
  padding: 12px 14px;
  border-radius: 10px;
  background: rgba(5, 16, 29, 0.65);
  font-size: 14px;
  line-height: 1.7;
  color: var(--mist);
}

.page-faq .faq-note strong {
  color: var(--signal);
  font-weight: 700;
}

.page-faq .faq-figure {
  margin: 4px 0 18px;
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--line-blue);
  border-radius: 10px;
  background: var(--night);
}

.page-faq .faq-figure figcaption {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.6;
  color: var(--mist);
}

.page-faq .faq-card__foot {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  padding-top: 4px;
}

.page-faq .faq-card__tool {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding-bottom: 2px;
  border-bottom: 1px solid rgba(219, 255, 154, 0.4);
  font-size: 14px;
  color: var(--lime-soft);
  text-decoration: none;
  transition: color 0.18s ease-out, border-color 0.18s ease-out;
}

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

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

/* 底部行动区 */
.page-faq .faq-cta {
  margin-top: 52px;
}

.page-faq .faq-cta__panel {
  display: grid;
  gap: 24px;
  padding: 28px 22px;
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-glass);
  background: linear-gradient(
    135deg,
    rgba(20, 45, 75, 0.78),
    rgba(10, 26, 47, 0.94)
  );
}

.page-faq .faq-cta__panel h2 {
  margin: 0 0 10px;
  font-size: clamp(22px, 3.4vw, 28px);
  line-height: 1.3;
  font-weight: 700;
  color: var(--ice);
}

.page-faq .faq-cta__text {
  max-width: 58ch;
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--mist);
}

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

/* 平板与桌面 */
@media (min-width: 760px) {
  .page-faq .faq-card > summary {
    padding: 20px 24px;
  }

  .page-faq .faq-card__body {
    padding: 0 24px 26px;
  }

  .page-faq .faq-cta__panel {
    padding: 36px 32px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
    align-items: end;
    gap: 48px;
    padding: 52px 0 56px;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-layout {
    grid-template-columns: var(--faq-toc-w) minmax(0, 1fr);
    gap: 48px;
    align-items: start;
    padding-top: 44px;
  }

  .page-faq .faq-toc {
    position: sticky;
    top: 32px;
    padding: 22px 18px;
  }

  .page-faq .faq-toc__list {
    flex-direction: column;
    gap: 0;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-faq .faq-toc__link {
    grid-template-columns: 28px minmax(0, 1fr);
    gap: 10px;
    padding: 11px 10px 11px 12px;
    border-bottom: none;
    border-left: 2px solid var(--line-blue);
    white-space: normal;
  }

  .page-faq .faq-toc__link:hover,
  .page-faq .faq-toc__link:focus-visible {
    border-left-color: var(--lime);
    background: rgba(184, 255, 61, 0.06);
  }

  .page-faq .faq-cta__panel {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    padding: 40px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-toc__link,
  .page-faq .faq-card,
  .page-faq .faq-card__q,
  .page-faq .faq-card__tool {
    transition: none;
  }
}
<<<END>>>