.page-faq {
  --faq-sticky: calc(var(--header-h) + 24px);
  --faq-side-w: 232px;
  background: var(--ink);
  color: var(--mist);
}

.page-faq .faq-hero {
  position: relative;
  padding: calc(var(--header-h) + 52px) 0 12px;
  background:
    radial-gradient(680px 400px at 88% 8%, rgba(34, 230, 210, 0.16), transparent 62%),
    radial-gradient(540px 340px at 4% 92%, rgba(255, 122, 26, 0.12), transparent 60%);
}

.page-faq .faq-hero-grid {
  display: grid;
  gap: 34px;
}

.page-faq .faq-hero-copy .breadcrumbs {
  margin-bottom: 22px;
  color: var(--slate);
  font-family: var(--font-mono);
  font-size: 12px;
}

.page-faq .faq-hero-copy .breadcrumbs a {
  color: var(--warm-gray);
  text-decoration: none;
}

.page-faq .faq-hero-copy .breadcrumbs a:hover {
  color: var(--cyan);
}

.page-faq .faq-hero-copy h1 {
  margin: 10px 0 0;
  font-size: clamp(2rem, 6vw, 3.5rem);
  line-height: 1.08;
  letter-spacing: -0.04em;
  font-weight: 900;
  color: var(--mist);
}

.page-faq .faq-hero-copy .section-lede {
  margin-top: 20px;
  max-width: 60ch;
  color: var(--warm-gray);
  font-size: clamp(15px, 2.1vw, 17px);
  line-height: 1.9;
}

.page-faq .faq-hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 26px;
}

.page-faq .faq-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.page-faq .faq-hero-visual {
  margin: 0;
}

.page-faq .faq-hero-visual .media-frame {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--line);
  box-shadow: var(--shadow-panel);
}

.page-faq .faq-hero-visual img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

.page-faq .faq-hero-visual .media-overlay {
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 14px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.page-faq .media-overlay-time {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--mist-cyan);
}

.page-faq .faq-hero-visual .media-caption {
  margin-top: 10px;
  color: var(--slate);
  font-size: 12px;
  line-height: 1.7;
}

/* 刻度条 */
.page-faq .faq-meter {
  display: grid;
  gap: 12px;
  margin-top: 44px;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface-deep);
}

.page-faq .meter-cell {
  padding: 12px 14px;
  border-left: 2px solid var(--line);
}

.page-faq .meter-cell--cyan {
  border-left-color: var(--cyan);
}

.page-faq .meter-top {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
}

.page-faq .meter-label {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--warm-gray);
}

.page-faq .meter-num {
  font-family: var(--font-mono);
  font-size: 24px;
  font-weight: 700;
  color: var(--cyan);
  font-variant-numeric: tabular-nums;
}

.page-faq .meter-num--orange {
  color: var(--orange);
}

.page-faq .meter-cell .progress-track {
  height: 4px;
  margin-top: 10px;
  border-radius: 999px;
  background: rgba(111, 127, 154, 0.22);
  overflow: hidden;
}

.page-faq .progress-fill {
  height: 100%;
  background: var(--cyan);
  border-radius: 999px;
}

.page-faq .progress-fill--orange {
  background: var(--orange);
}

.page-faq .meter-note {
  margin: 10px 0 0;
  font-size: 12px;
  line-height: 1.7;
  color: var(--slate);
}

/* 主体布局 */
.page-faq .faq-body {
  padding-top: clamp(44px, 6vw, 72px);
  padding-bottom: clamp(56px, 8vw, 96px);
}

.page-faq .faq-layout {
  display: grid;
  gap: 28px;
}

.page-faq .faq-index {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.page-faq .index-list {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0 0 6px;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-faq .index-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--warm-gray);
  font-size: 13px;
  white-space: nowrap;
  text-decoration: none;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease), background 0.2s var(--ease);
}

.page-faq .index-link:hover,
.page-faq .index-link:focus-visible {
  color: var(--mist);
  border-color: var(--line-strong);
  background: rgba(34, 230, 210, 0.08);
}

.page-faq .index-link.is-active {
  color: var(--mist);
  border-color: var(--cyan);
  background: rgba(34, 230, 210, 0.12);
}

.page-faq .index-num {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--orange);
}

.page-faq .index-help {
  margin: 0;
  color: var(--slate);
  font-size: 12.5px;
  line-height: 1.8;
}

/* 问答流 */
.page-faq .faq-stream {
  min-width: 0;
}

.page-faq .faq-group {
  margin-bottom: clamp(32px, 5vw, 52px);
  scroll-margin-top: calc(var(--header-h) + 20px);
}

.page-faq .faq-group-head {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 10px;
  padding-bottom: 14px;
}

.page-faq .faq-group-num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--orange);
}

.page-faq .faq-group-title {
  margin: 0;
  flex: 1 1 auto;
  min-width: 0;
  font-size: clamp(19px, 2.6vw, 24px);
  font-weight: 900;
  letter-spacing: -0.02em;
  color: var(--mist);
}

.page-faq .faq-group-jump {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(34, 230, 210, 0.34);
  padding-bottom: 2px;
}

.page-faq .faq-group-jump:hover {
  color: var(--mist-cyan);
}

.page-faq .faq-item {
  border-top: 1px solid var(--line-soft);
}

.page-faq .faq-item:last-child {
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .faq-item summary {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 12px;
  padding: 18px 2px;
  cursor: pointer;
  list-style: none;
  font-size: clamp(15px, 2.2vw, 17px);
  font-weight: 700;
  line-height: 1.6;
  color: var(--mist);
}

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

.page-faq .faq-item summary:hover {
  color: var(--mist-cyan);
}

.page-faq .faq-item summary:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 4px;
  border-radius: var(--radius-sm);
}

.page-faq .faq-q-num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--slate);
}

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

.page-faq .faq-q-toggle {
  position: relative;
  width: 22px;
  height: 22px;
  border: 1px solid var(--line-strong);
  border-radius: 6px;
  flex: none;
}

.page-faq .faq-q-toggle::before,
.page-faq .faq-q-toggle::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  background: var(--cyan);
  border-radius: 2px;
}

.page-faq .faq-q-toggle::before {
  width: 9px;
  height: 1.5px;
  transform: translate(-50%, -50%);
}

.page-faq .faq-q-toggle::after {
  width: 1.5px;
  height: 9px;
  transform: translate(-50%, -50%);
  transition: transform 0.22s var(--ease);
}

.page-faq .faq-item[open] .faq-q-toggle::after {
  transform: translate(-50%, -50%) scaleY(0);
}

.page-faq .faq-answer {
  padding: 0 0 22px;
  border-left: 1px solid var(--line-soft);
}

.page-faq .faq-answer > p {
  margin: 0 0 12px;
  padding-left: 12px;
  max-width: 64ch;
  color: var(--warm-gray);
  font-size: 15px;
  line-height: 1.9;
}

.page-faq .faq-answer > p:last-child {
  margin-bottom: 0;
}

.page-faq .faq-metrics {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 4px 0 16px;
}

.page-faq .metric {
  min-width: 104px;
  padding: 10px 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: rgba(27, 42, 94, 0.5);
}

.page-faq .metric-value {
  display: block;
  font-family: var(--font-mono);
  font-size: 24px;
  font-weight: 700;
  line-height: 1.1;
  color: var(--cyan);
  font-variant-numeric: tabular-nums;
}

.page-faq .metric-value--orange {
  color: var(--orange);
}

.page-faq .metric-label {
  display: block;
  margin-top: 4px;
  font-size: 11.5px;
  letter-spacing: 0.04em;
  color: var(--warm-gray);
}

.page-faq .faq-figure {
  margin: 18px 0 0;
  padding-left: 12px;
  max-width: 420px;
}

.page-faq .faq-figure .media-frame {
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--line);
}

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

.page-faq .faq-figure .media-caption {
  margin-top: 8px;
  font-size: 12px;
  line-height: 1.7;
  color: var(--slate);
}

/* 联系卡 */
.page-faq .faq-cta {
  position: relative;
  display: grid;
  gap: 24px;
  margin-top: 8px;
  padding: clamp(24px, 4vw, 40px);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background:
    radial-gradient(420px 260px at 100% 100%, rgba(255, 122, 26, 0.22), transparent 66%),
    linear-gradient(140deg, var(--indigo-layer), var(--ink) 72%);
  overflow: hidden;
}

.page-faq .faq-cta-title {
  margin: 6px 0 0;
  font-size: clamp(20px, 3vw, 27px);
  line-height: 1.35;
  letter-spacing: -0.02em;
  font-weight: 900;
  color: var(--mist);
}

.page-faq .faq-cta-lede {
  margin: 12px 0 0;
  max-width: 46ch;
  color: var(--warm-gray);
  font-size: 15px;
  line-height: 1.85;
}

.page-faq .faq-cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 22px;
}

.page-faq .faq-contact-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  min-width: 0;
}

.page-faq .contact-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 12px;
  padding: 12px 14px;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-sm);
  background: rgba(11, 18, 48, 0.6);
}

.page-faq .contact-label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--slate);
  flex: 0 0 auto;
}

.page-faq .contact-value {
  flex: 1 1 auto;
  min-width: 0;
  font-size: 14px;
  color: var(--mist);
  overflow-wrap: anywhere;
}

.page-faq .contact-row .copy-btn {
  flex: 0 0 auto;
  padding: 5px 12px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  background: transparent;
  color: var(--cyan);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  cursor: pointer;
  transition: background 0.2s var(--ease), color 0.2s var(--ease);
}

.page-faq .contact-row .copy-btn:hover,
.page-faq .contact-row .copy-btn:focus-visible {
  background: rgba(34, 230, 210, 0.14);
  color: var(--mist-cyan);
}

.page-faq .faq-contact-note {
  margin: 2px 0 0;
  font-size: 12px;
  line-height: 1.8;
  color: var(--slate);
}

@media (min-width: 640px) {
  .page-faq .faq-meter {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    padding: 20px;
    gap: 8px;
  }

  .page-faq .faq-answer {
    padding-left: 40px;
    border-left-color: var(--line-soft);
  }

  .page-faq .faq-answer > p {
    padding-left: 0;
  }

  .page-faq .faq-metrics {
    margin-left: 0;
  }

  .page-faq .faq-figure {
    padding-left: 0;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-hero-grid {
    grid-template-columns: 1.15fr 0.85fr;
    align-items: end;
    gap: 52px;
  }

  .page-faq .faq-cta {
    grid-template-columns: 1.05fr 0.95fr;
    align-items: center;
  }
}

@media (min-width: 1000px) {
  .page-faq .faq-layout {
    grid-template-columns: var(--faq-side-w) minmax(0, 1fr);
    gap: 56px;
  }

  .page-faq .faq-index {
    position: sticky;
    top: var(--faq-sticky);
    align-self: start;
  }

  .page-faq .index-list {
    flex-direction: column;
    gap: 2px;
    overflow: visible;
    padding-bottom: 0;
    border-left: 1px solid var(--line-soft);
  }

  .page-faq .index-link {
    border: 0;
    border-radius: 0;
    border-left: 2px solid transparent;
    margin-left: -1px;
    padding: 10px 0 10px 14px;
    font-size: 13.5px;
    white-space: normal;
  }

  .page-faq .index-link:hover,
  .page-faq .index-link:focus-visible {
    background: linear-gradient(90deg, rgba(34, 230, 210, 0.12), transparent);
    border-left-color: var(--cyan);
  }

  .page-faq .index-link.is-active {
    background: linear-gradient(90deg, rgba(34, 230, 210, 0.14), transparent);
    border-left-color: var(--cyan);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .index-link,
  .page-faq .faq-q-toggle::after,
  .page-faq .contact-row .copy-btn {
    transition: none;
  }
}
<<<PAGE_CSS_END>>>