.page-faq {
  --faq-soft: rgba(124, 147, 174, .08);
  --faq-soft-strong: rgba(124, 147, 174, .16);
  --faq-rule: rgba(124, 147, 174, .26);
  --faq-ink-soft: #3C4B5E;
  padding: 20px 0 88px;
  position: relative;
}

.page-faq .breadcrumbs {
  margin-bottom: 26px;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  padding-bottom: clamp(36px, 5vw, 64px);
}

.page-faq .faq-hero-copy {
  max-width: 800px;
}

.page-faq .faq-hero-copy .eyebrow {
  margin-bottom: 12px;
  color: var(--slate);
}

.page-faq .faq-hero h1 {
  margin: 0;
  font-size: clamp(28px, 5.4vw, 52px);
  font-weight: 800;
  line-height: 1.14;
  letter-spacing: -.02em;
  color: var(--warm);
  text-wrap: balance;
}

.page-faq .faq-hero .lede {
  margin: 18px 0 0;
  max-width: 62ch;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.78;
  color: var(--text-body);
}

.page-faq .faq-version {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 14px;
  margin-top: 26px;
  padding: 11px 18px;
  width: fit-content;
  max-width: 100%;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--ink-800);
  box-shadow: var(--shadow-panel);
}

.page-faq .faq-version-text {
  font-size: 14px;
  color: var(--text-body);
}

.page-faq .faq-version-idx {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--slate);
}

.page-faq .faq-search {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 20px;
  max-width: 560px;
  height: 52px;
  padding: 0 18px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--ink-800);
  transition: border-color .2s var(--ease), box-shadow .2s var(--ease);
}

.page-faq .faq-search:focus-within {
  border-color: var(--cyan);
  box-shadow: 0 0 0 3px rgba(47, 243, 224, .12);
}

.page-faq .faq-search-icon {
  position: relative;
  flex: none;
  width: 13px;
  height: 13px;
  border: 2px solid var(--slate);
  border-radius: 50%;
}

.page-faq .faq-search-icon::after {
  content: "";
  position: absolute;
  right: -5px;
  bottom: -3px;
  width: 7px;
  height: 2px;
  background: var(--slate);
  transform: rotate(45deg);
}

.page-faq .faq-search-input {
  flex: 1 1 auto;
  min-width: 0;
  border: 0;
  background: transparent;
  color: var(--warm);
  font: inherit;
  font-size: 15px;
  outline: none;
}

.page-faq .faq-search-input::placeholder {
  color: var(--rock);
}

.page-faq .faq-search-hint {
  flex: none;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .07em;
  color: var(--slate);
}

.page-faq .faq-hero-media {
  position: relative;
  margin: 32px 0 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--ink-800);
}

.page-faq .faq-hero-media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 7 / 3;
  object-fit: cover;
}

.page-faq .faq-hero-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(11, 22, 38, .18) 0%, rgba(11, 22, 38, .88) 100%);
  pointer-events: none;
}

/* ---------- 主体两栏 ---------- */
.page-faq .faq-layout {
  display: grid;
  gap: 40px;
  align-items: start;
}

.page-faq .faq-rail {
  border-top: 1px solid var(--line);
  padding-top: 20px;
}

.page-faq .faq-rail-title {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--slate);
  text-transform: uppercase;
}

.page-faq .faq-rail-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-faq .faq-rail-list a {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 10px 12px 10px 10px;
  border-left: 2px solid transparent;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: var(--text-body);
  font-size: 15px;
  text-decoration: none;
  transition: color .18s var(--ease), border-color .18s var(--ease), background-color .18s var(--ease);
}

.page-faq .faq-rail-list a:hover,
.page-faq .faq-rail-list a:focus-visible {
  color: var(--warm);
  border-left-color: var(--slate);
  background: var(--faq-soft);
  outline: none;
}

.page-faq .faq-rail-num {
  min-width: 22px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--slate);
}

.page-faq .faq-rail-note {
  margin: 22px 0 0;
  padding-top: 18px;
  border-top: 1px dashed var(--line);
  font-size: 14px;
  line-height: 1.7;
  color: var(--rock);
}

.page-faq .faq-rail-note a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(47, 243, 224, .35);
}

.page-faq .faq-rail-note a:hover {
  border-bottom-color: var(--cyan);
}

/* ---------- 条目流 ---------- */
.page-faq .faq-flow {
  display: grid;
  gap: 56px;
  min-width: 0;
}

.page-faq .faq-section {
  scroll-margin-top: 104px;
  min-width: 0;
}

.page-faq .faq-section-head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 16px;
  align-items: start;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 8px;
}

.page-faq .faq-section-num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--slate);
  padding-top: 6px;
}

.page-faq .faq-section h2 {
  margin: 0;
  font-size: clamp(21px, 2.8vw, 28px);
  font-weight: 800;
  letter-spacing: -.015em;
  line-height: 1.25;
  color: var(--warm);
}

.page-faq .faq-section-sub {
  margin: 10px 0 0;
  max-width: 56ch;
  font-size: 15px;
  line-height: 1.72;
  color: var(--rock);
}

.page-faq .faq-list {
  display: block;
}

/* 折叠条目 */
.page-faq .faq-item {
  border-bottom: 1px solid var(--line);
  transition: box-shadow .2s var(--ease), background-color .2s var(--ease);
}

.page-faq .faq-item[open] {
  box-shadow: inset 2px 0 0 var(--slate);
  background: var(--faq-soft);
}

.page-faq .faq-item > summary {
  list-style: none;
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 18px 8px 18px 12px;
  cursor: pointer;
  color: var(--text-body);
  font-size: 16px;
  line-height: 1.62;
  transition: color .18s var(--ease);
}

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

.page-faq .faq-item > summary::marker {
  content: "";
}

.page-faq .faq-item > summary:hover {
  color: var(--warm);
}

.page-faq .faq-item > summary:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: -3px;
  border-radius: 6px;
}

.page-faq .faq-q-mark {
  flex: none;
  padding-top: 3px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .06em;
  color: var(--slate);
  transition: color .18s var(--ease);
}

.page-faq .faq-item[open] .faq-q-mark {
  color: var(--cyan);
}

.page-faq .faq-q-text {
  flex: 1 1 auto;
  min-width: 0;
}

.page-faq .faq-toggle {
  position: relative;
  flex: none;
  width: 18px;
  height: 18px;
  margin-top: 3px;
  color: var(--slate);
  transition: color .18s var(--ease);
}

.page-faq .faq-item > summary:hover .faq-toggle,
.page-faq .faq-item[open] .faq-toggle {
  color: var(--cyan);
}

.page-faq .faq-toggle::before,
.page-faq .faq-toggle::after {
  content: "";
  position: absolute;
  background: currentColor;
  transition: transform .2s var(--ease), opacity .2s var(--ease);
}

.page-faq .faq-toggle::before {
  left: 2px;
  right: 2px;
  top: 8px;
  height: 2px;
}

.page-faq .faq-toggle::after {
  top: 2px;
  bottom: 2px;
  left: 8px;
  width: 2px;
}

.page-faq .faq-item[open] .faq-toggle::after {
  transform: scaleY(0);
  opacity: 0;
}

.page-faq .faq-body {
  padding: 0 16px 22px 40px;
  max-width: 34em;
  font-size: 15px;
  line-height: 1.85;
  color: var(--rock);
}

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

.page-faq .faq-body a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(47, 243, 224, .32);
  transition: border-color .18s var(--ease);
}

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

/* ---------- 文档使用区块的图文分栏 ---------- */
.page-faq .faq-doc-split {
  display: grid;
  gap: 28px;
  margin-top: 4px;
}

.page-faq .faq-doc-figure {
  margin: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: var(--ink-800);
}

.page-faq .faq-doc-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  opacity: .82;
}

.page-faq .faq-figure-caption {
  padding: 12px 16px;
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--slate);
}

/* ---------- 联系卡片 ---------- */
.page-faq .faq-cta {
  display: grid;
  gap: 28px;
  padding: 30px 22px;
  border-radius: var(--radius);
  background: var(--cream);
  color: var(--ink-900);
  box-shadow: var(--shadow-panel);
}

.page-faq .faq-cta .faq-section-num {
  color: var(--clay);
  padding-top: 0;
}

.page-faq .faq-cta h2 {
  margin: 10px 0 12px;
  font-size: clamp(21px, 2.8vw, 27px);
  font-weight: 800;
  letter-spacing: -.015em;
  line-height: 1.25;
  color: var(--ink-900);
}

.page-faq .faq-cta p {
  margin: 0;
  max-width: 46ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--faq-ink-soft);
}

.page-faq .faq-contact-list {
  list-style: none;
  margin: 0 0 18px;
  padding: 0;
  display: grid;
  gap: 16px;
}

.page-faq .faq-contact-label {
  display: block;
  margin-bottom: 4px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--clay);
  text-transform: uppercase;
}

.page-faq .faq-contact-value {
  display: block;
  font-size: 16px;
  font-weight: 600;
  letter-spacing: -.005em;
  color: var(--ink-900);
  word-break: break-word;
}

.page-faq .faq-copy {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 22px;
  border: 1px solid rgba(11, 22, 38, .2);
  border-radius: 999px;
  background: var(--ink-900);
  color: var(--warm);
  font: inherit;
  font-size: 14px;
  cursor: pointer;
  transition: transform .18s var(--ease), background-color .18s var(--ease);
}

.page-faq .faq-copy:hover {
  transform: translateY(-2px);
  background: var(--ink-700);
}

.page-faq .faq-copy:focus-visible {
  outline: 2px solid var(--ink-900);
  outline-offset: 3px;
}

.page-faq .faq-cta-note {
  margin-top: 16px !important;
  font-size: 14px !important;
  color: var(--faq-ink-soft);
}

.page-faq .faq-cta-note a {
  color: var(--clay);
  text-decoration: none;
  border-bottom: 1px solid rgba(180, 100, 60, .45);
}

.page-faq .faq-cta-note a:hover {
  border-bottom-color: var(--clay);
}

/* ---------- 平板 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-layout {
    gap: 44px;
  }

  .page-faq .faq-item > summary {
    padding: 20px 16px 20px 16px;
    font-size: 17px;
    gap: 18px;
  }

  .page-faq .faq-body {
    padding: 0 40px 26px 50px;
  }

  .page-faq .faq-cta {
    padding: 40px 36px;
  }

  .page-faq .faq-doc-split {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
    gap: 32px;
    align-items: start;
  }

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

/* ---------- 桌面 ---------- */
@media (min-width: 1000px) {
  .page-faq {
    padding-bottom: 112px;
  }

  .page-faq .faq-layout {
    grid-template-columns: 232px minmax(0, 1fr);
    gap: 64px;
  }

  .page-faq .faq-rail {
    position: sticky;
    top: 100px;
  }

  .page-faq .faq-flow {
    gap: 64px;
  }

  .page-faq .faq-hero-copy {
    max-width: 760px;
  }

  .page-faq .faq-cta {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
    gap: 48px;
    padding: 48px 44px;
  }
}

/* ---------- 窄屏收口 ---------- */
@media (max-width: 480px) {
  .page-faq .faq-search-hint {
    display: none;
  }

  .page-faq .faq-version {
    padding: 10px 14px;
    gap: 8px 12px;
  }

  .page-faq .faq-item > summary {
    gap: 10px;
  }

  .page-faq .faq-body {
    padding-left: 32px;
  }
}

/* ---------- 降低动效 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-faq *,
  .page-faq *::before,
  .page-faq *::after {
    transition-duration: .001ms !important;
    animation-duration: .001ms !important;
  }
}
<<<END>>>