.page-faq {
  --faq-row-radius: 22px;
  --faq-measure: 60rem;
}

/* ---------- 面包屑占位 ---------- */
.page-faq .crumbs {
  padding-top: clamp(1rem, 3vw, 1.75rem);
}

/* ---------- 首屏：右图偏出网格 ---------- */
.page-faq .faq-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(1.75rem, 5vw, 2.75rem);
  align-items: start;
}

.page-faq .faq-hero-copy {
  max-width: 44rem;
}

.page-faq .faq-hero h1 {
  margin: 0.55rem 0 0;
  font-family: var(--font-display);
  font-size: var(--type-h1);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.16;
  color: var(--chalk);
  max-width: 22ch;
}

.page-faq .faq-lede {
  margin: 1.15rem 0 0;
  max-width: 36rem;
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.85;
  color: var(--chalk-dim);
}

.page-faq .faq-jump {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 1.75rem 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-jump a {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.42rem 0.9rem;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-pill);
  background: var(--turf-panel);
  color: var(--chalk);
  font-family: var(--font-display);
  font-size: 0.8125rem;
  letter-spacing: 0.02em;
  text-decoration: none;
  transition: border-color 0.2s var(--ease), color 0.2s var(--ease), background-color 0.2s var(--ease);
}

.page-faq .faq-jump a:hover,
.page-faq .faq-jump a:focus-visible {
  border-color: var(--glow-blue);
  color: var(--glow-blue);
  background: var(--turf-raise);
}

.page-faq .faq-jump .mono {
  font-size: 0.6875rem;
  color: var(--glow-blue-deep);
  letter-spacing: 0.1em;
}

.page-faq .faq-jump a:hover .mono,
.page-faq .faq-jump a:focus-visible .mono {
  color: var(--glow-blue);
}

.page-faq .faq-hero-media {
  position: relative;
  aspect-ratio: 16 / 10;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: linear-gradient(155deg, var(--turf-panel), var(--bg-night-turf));
}

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

/* ---------- 章节通用 ---------- */
.page-faq .faq-block {
  scroll-margin-top: 6.5rem;
}

.page-faq .faq-block-lede {
  margin: 0.9rem 0 0;
  max-width: 52rem;
  font-family: var(--font-body);
  font-size: 0.9375rem;
  line-height: 1.85;
  color: var(--chalk-dim);
}

/* ---------- 折叠问题列表 ---------- */
.page-faq .qa-list {
  display: grid;
  gap: 0.75rem;
  margin-top: clamp(1.5rem, 4vw, 2.25rem);
  max-width: var(--faq-measure);
}

.page-faq .qa {
  border: 1px solid var(--line-soft);
  border-radius: var(--faq-row-radius);
  background: var(--turf-panel);
  overflow: hidden;
  transition: border-color 0.22s var(--ease), background-color 0.22s var(--ease);
}

.page-faq .qa:hover {
  border-color: var(--glow-blue-deep);
}

.page-faq .qa[open] {
  border-color: var(--glow-blue);
  background: var(--turf-raise);
}

.page-faq .qa > summary {
  list-style: none;
  cursor: pointer;
}

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

.page-faq .qa-summary {
  display: flex;
  align-items: baseline;
  gap: 0.8rem;
  padding: 1.05rem 1.15rem;
}

.page-faq .qa-summary:focus-visible {
  outline: 2px solid var(--focus-ring);
  outline-offset: -3px;
  border-radius: var(--faq-row-radius);
}

.page-faq .qa-index {
  flex: 0 0 auto;
  padding: 0.2rem 0.5rem;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-pill);
  font-size: 0.6875rem;
  letter-spacing: 0.1em;
  color: var(--glow-blue);
  background: transparent;
  transition: color 0.2s var(--ease), background-color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-faq .qa[open] .qa-index {
  color: var(--bg-night-turf);
  background: var(--glow-blue);
  border-color: var(--glow-blue);
}

.page-faq .qa-question {
  flex: 1 1 auto;
  font-family: var(--font-display);
  font-size: 1.0625rem;
  font-weight: 600;
  line-height: 1.5;
  letter-spacing: -0.01em;
  color: var(--chalk);
}

.page-faq .qa-toggle {
  position: relative;
  flex: 0 0 auto;
  align-self: center;
  width: 1.125rem;
  height: 1.125rem;
}

.page-faq .qa-toggle::before,
.page-faq .qa-toggle::after {
  content: "";
  position: absolute;
  background: var(--glow-blue-deep);
  transition: transform 0.24s var(--ease), opacity 0.24s var(--ease), background-color 0.24s var(--ease);
}

.page-faq .qa-toggle::before {
  left: 0;
  right: 0;
  top: 50%;
  height: 2px;
  transform: translateY(-50%);
}

.page-faq .qa-toggle::after {
  top: 0;
  bottom: 0;
  left: 50%;
  width: 2px;
  transform: translateX(-50%);
}

.page-faq .qa[open] .qa-toggle::before {
  background: var(--glow-blue);
}

.page-faq .qa[open] .qa-toggle::after {
  opacity: 0;
  transform: translateX(-50%) scaleY(0.3);
}

.page-faq .qa-answer {
  padding: 0.15rem 1.15rem 1.3rem;
  border-top: 1px solid var(--line-soft);
  margin-top: 0;
}

.page-faq .qa-answer > p {
  margin: 0.95rem 0 0;
  font-family: var(--font-body);
  font-size: 0.9375rem;
  line-height: 1.85;
  color: var(--chalk-dim);
}

.page-faq .qa-answer > p:first-child {
  margin-top: 1rem;
}

.page-faq .qa-answer a {
  color: var(--glow-blue);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
}

.page-faq .qa-answer a:hover,
.page-faq .qa-answer a:focus-visible {
  color: var(--focus-ring);
}

/* ---------- 定义项：等宽标签 + 宋体解释 ---------- */
.page-faq .qa-def {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0.15rem 0.9rem;
  margin: 1.05rem 0 0;
  padding-left: 0.9rem;
  border-left: 1px solid var(--line-soft);
}

.page-faq .qa-def dt {
  margin-top: 0.85rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  color: var(--glow-blue);
}

.page-faq .qa-def dt:first-of-type {
  margin-top: 0;
}

.page-faq .qa-def dd {
  margin: 0;
  max-width: 46rem;
  font-family: var(--font-body);
  font-size: 0.9375rem;
  line-height: 1.8;
  color: var(--chalk);
}

/* ---------- 比例条 ---------- */
.page-faq .rate-panel {
  margin-top: 1.15rem;
  padding: 1rem 1.05rem 0.9rem;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-md);
  background: var(--bg-night-turf);
}

.page-faq .rate-panel-title {
  margin: 0;
  font-size: 0.6875rem;
  letter-spacing: 0.1em;
  color: var(--chalk-dim);
}

.page-faq .rate-bars {
  display: grid;
  gap: 0.6rem;
  margin-top: 0.9rem;
}

.page-faq .rate-row {
  display: grid;
  grid-template-columns: 4.5rem minmax(0, 1fr) 3.4rem;
  align-items: center;
  gap: 0.6rem;
}

.page-faq .rate-label {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.05em;
  color: var(--chalk);
}

.page-faq .rate-track {
  display: block;
  height: 9px;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-pill);
  background: var(--turf-panel);
  overflow: hidden;
}

.page-faq .rate-fill {
  display: block;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--glow-blue-deep), var(--glow-blue));
}

.page-faq .rate-fill--amber {
  background: linear-gradient(90deg, var(--glow-blue-deep), var(--amber-flag));
}

.page-faq .rate-value {
  text-align: right;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-variant-numeric: tabular-nums;
  color: var(--chalk);
}

.page-faq .rate-note {
  margin: 0.85rem 0 0;
  font-size: 0.6875rem;
  letter-spacing: 0.06em;
  color: var(--amber-flag);
}

/* ---------- 指标区窄幅横图 ---------- */
.page-faq .faq-figure {
  margin: clamp(1.5rem, 4vw, 2.25rem) 0 0;
}

.page-faq .faq-metric-media {
  aspect-ratio: 1400 / 520;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: linear-gradient(120deg, var(--turf-panel), var(--bg-night-turf));
}

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

.page-faq .faq-figure .media-caption {
  margin-top: 0.7rem;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.06em;
  color: var(--chalk-dim);
}

/* ---------- 收尾面板 ---------- */
.page-faq .faq-cta {
  padding: clamp(1.5rem, 5vw, 2.75rem);
  border-radius: var(--radius-lg);
}

.page-faq .faq-cta h2 {
  margin: 0.5rem 0 0;
  font-family: var(--font-display);
  font-size: var(--type-h2);
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--chalk);
}

.page-faq .faq-cta-text {
  margin: 0.9rem 0 1.4rem;
  max-width: 46rem;
  font-family: var(--font-body);
  font-size: 0.9375rem;
  line-height: 1.85;
  color: var(--chalk-dim);
}

/* ---------- 桌面端 ---------- */
@media (min-width: 900px) {
  .page-faq .faq-hero-grid {
    grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr);
    gap: clamp(2rem, 5vw, 4rem);
  }

  .page-faq .faq-hero-media {
    margin-right: calc(var(--gutter) * -0.45);
    transform: rotate(var(--tilt-b)) translateY(-1.5rem);
  }

  .page-faq .qa-summary {
    padding: 1.2rem 1.5rem;
  }

  .page-faq .qa-answer {
    padding: 0.2rem 1.5rem 1.5rem;
  }

  .page-faq .qa-def {
    grid-template-columns: 7.5rem minmax(0, 1fr);
    padding-left: 1.1rem;
  }

  .page-faq .qa-def dt {
    margin-top: 0.7rem;
  }

  .page-faq .rate-row {
    grid-template-columns: 6rem minmax(0, 1fr) 4rem;
    gap: 0.85rem;
  }
}

@media (min-width: 1180px) {
  .page-faq .qa-list {
    margin-left: clamp(0rem, 4vw, 3.5rem);
  }

  .page-faq .faq-figure {
    max-width: 100%;
  }
}

/* ---------- 降低动效 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-faq .qa,
  .page-faq .qa-index,
  .page-faq .qa-toggle::before,
  .page-faq .qa-toggle::after,
  .page-faq .faq-jump a {
    transition: none;
  }

  .page-faq .faq-hero-media {
    transform: none;
  }
}