.page-faq {
  --faq-line: rgba(10, 22, 34, 0.14);
  --faq-ink-soft: #3A5364;
  --faq-index-ink: #52748C;
  --faq-gap: 32px;
}

/* ============ 首屏：错位色块 ============ */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  background: var(--ink-deep);
  padding: calc(var(--header-h) + 36px) 0 56px;
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  top: 10%;
  left: -16%;
  width: 82%;
  height: 60%;
  background: var(--ink-layer);
  border: 1px solid var(--line);
  transform: rotate(-8deg);
  z-index: 0;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  right: -10%;
  bottom: -22%;
  width: 52%;
  height: 66%;
  background: var(--neon);
  opacity: 0.13;
  transform: rotate(11deg);
  z-index: 0;
}

.page-faq .faq-hero__inner {
  position: relative;
  z-index: 1;
}

.page-faq .faq-hero .crumb {
  color: var(--text-on-ink-dim);
  margin-bottom: 8px;
}

.page-faq .faq-hero .crumb a {
  color: var(--electric);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}

.page-faq .faq-hero .crumb a:hover,
.page-faq .faq-hero .crumb a:focus-visible {
  border-bottom-color: var(--coral);
}

.page-faq .faq-hero__label {
  color: var(--coral);
  margin: 12px 0 0;
}

.page-faq .faq-hero__title {
  color: var(--paper);
  font-size: clamp(32px, 6.4vw, 72px);
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin: 14px 0 18px;
  max-width: 16ch;
}

.page-faq .faq-hero__lead {
  color: var(--text-on-ink);
  max-width: 64ch;
}

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

.page-faq .faq-hero__stats {
  list-style: none;
  margin: 36px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
  border-top: 1px solid var(--line);
  padding-top: 24px;
}

.page-faq .faq-hero__stats .stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.page-faq .faq-hero__stats .stat-value {
  color: var(--paper);
  font-size: clamp(30px, 5vw, 52px);
  line-height: 1;
}

.page-faq .faq-hero__stats .stat-value--neon {
  color: var(--neon);
}

.page-faq .faq-hero__stats .stat-value--coral {
  color: var(--coral);
}

.page-faq .faq-hero__stats .stat-key {
  color: var(--text-on-ink-dim);
  font-size: 13px;
  line-height: 1.5;
}

/* ============ 主体两栏 ============ */
.page-faq .faq-body {
  background: var(--ink-deep);
  padding: 44px 0 76px;
}

.page-faq .faq-cols {
  display: grid;
  grid-template-columns: 1fr;
  gap: 34px;
  align-items: start;
}

/* ============ 主题索引（窄栏） ============ */
.page-faq .faq-index {
  border: 1px solid var(--line);
  background: var(--ink-layer);
  border-radius: var(--radius);
  padding: 18px 16px;
}

.page-faq .faq-index__title {
  color: var(--mist);
  margin: 0 0 14px;
}

.page-faq .faq-index__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
}

.page-faq .faq-index__list a {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 4px 8px;
  padding: 12px;
  border: 1px solid var(--line);
  border-left: 3px solid transparent;
  border-radius: var(--radius);
  background: rgba(6, 24, 43, 0.6);
  text-decoration: none;
  transition: border-color 0.18s ease, background 0.18s ease, transform 0.18s ease;
}

.page-faq .faq-index__list a:hover,
.page-faq .faq-index__list a:focus-visible {
  border-color: var(--line-strong);
  border-left-color: var(--coral);
  background: rgba(6, 24, 43, 0.95);
  transform: translateX(2px);
}

.page-faq .faq-index__no {
  grid-column: 1;
  grid-row: 1;
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--neon);
}

.page-faq .faq-index__count {
  grid-column: 2;
  grid-row: 1;
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--text-on-ink-dim);
}

.page-faq .faq-index__name {
  grid-column: 1 / -1;
  grid-row: 2;
  color: var(--paper);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.page-faq .faq-index__note {
  margin: 14px 0 0;
  padding-top: 12px;
  border-top: 1px solid var(--line);
  color: var(--text-on-ink-dim);
  font-size: 13px;
  line-height: 1.6;
}

/* ============ 问答分组 ============ */
.page-faq .faq-group {
  margin-bottom: var(--faq-gap);
  scroll-margin-top: calc(var(--header-h-compact) + 28px);
}

.page-faq .faq-group__head {
  border-left: 3px solid var(--neon);
  padding-left: 14px;
  margin-bottom: 18px;
}

.page-faq .faq-group__head .label {
  color: var(--coral);
  margin: 0 0 8px;
}

.page-faq .faq-group__head h2 {
  color: var(--paper);
  font-size: clamp(23px, 3.4vw, 38px);
  line-height: 1.15;
  letter-spacing: -0.01em;
  margin: 0 0 10px;
}

.page-faq .faq-group__intro {
  color: var(--text-on-ink-dim);
  max-width: 62ch;
  margin: 0;
  line-height: 1.7;
}

/* 纸白画板 */
.page-faq .faq-panel {
  padding: 6px clamp(16px, 3vw, 28px);
}

.page-faq .faq-panel .expand {
  border-top: 1px solid var(--faq-line);
  transition: background 0.18s ease, box-shadow 0.18s ease;
}

.page-faq .faq-panel .expand:first-child {
  border-top: 0;
}

.page-faq .faq-panel .expand[data-open="true"] {
  box-shadow: inset 3px 0 0 var(--neon);
  background: linear-gradient(90deg, rgba(53, 240, 208, 0.16), rgba(53, 240, 208, 0) 46%);
}

.page-faq .faq-panel .expand-btn {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: start;
  gap: 12px;
  width: 100%;
  padding: 18px 0;
  border: 0;
  background: transparent;
  color: var(--ink-black);
  text-align: left;
  font: inherit;
  cursor: pointer;
}

.page-faq .faq-panel .expand-btn:hover .expand-q {
  color: var(--link-on-paper);
}

.page-faq .faq-panel .expand-btn:focus-visible {
  outline: 2px solid var(--neon);
  outline-offset: 2px;
}

.page-faq .expand-no {
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--faq-index-ink);
  padding-top: 5px;
}

.page-faq .expand-q {
  font-size: 16px;
  font-weight: 600;
  line-height: 1.5;
  color: inherit;
  transition: color 0.16s ease;
}

.page-faq .faq-panel .expand-mark {
  color: var(--link-on-paper);
  margin-top: 4px;
}

.page-faq .faq-panel .expand[data-open="true"] .expand-mark {
  color: var(--coral);
}

.page-faq .faq-panel .expand-inner {
  max-width: 68ch;
  padding: 0 0 18px;
  color: var(--faq-ink-soft);
  font-size: 15px;
  line-height: 1.7;
}

.page-faq .faq-panel .expand-inner p {
  margin: 0 0 0.7em;
}

.page-faq .faq-panel .expand-inner p:last-child {
  margin-bottom: 0;
}

/* ============ 图注容器 ============ */
.page-faq .faq-figure {
  margin: 22px 0 0;
  border: 1px solid var(--line);
  max-width: 100%;
}

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

.page-faq .faq-figure figcaption {
  font-size: 12px;
}

/* ============ 未解决出口 ============ */
.page-faq .faq-exit {
  background: var(--ink-layer);
  border: 1px solid var(--line-strong);
  border-left: 3px solid var(--coral);
  border-radius: var(--radius);
  padding: clamp(20px, 3vw, 32px);
}

.page-faq .faq-exit .label {
  color: var(--coral);
  margin: 0 0 10px;
}

.page-faq .faq-exit h2 {
  color: var(--paper);
  font-size: clamp(22px, 3vw, 32px);
  margin: 0 0 12px;
  line-height: 1.2;
}

.page-faq .faq-exit p {
  color: var(--text-on-ink);
  max-width: 66ch;
  margin: 0 0 20px;
  line-height: 1.7;
}

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

/* ============ 响应式 ============ */
@media (min-width: 700px) {
  .page-faq .faq-hero__stats {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 24px;
  }

  .page-faq .faq-figure {
    max-width: 560px;
  }

  .page-faq .faq-figure.figure-frame--3x4 {
    max-width: 320px;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-hero {
    padding: calc(var(--header-h) + 52px) 0 72px;
  }

  .page-faq .faq-cols {
    grid-template-columns: minmax(212px, 3fr) 9fr;
    gap: 44px;
  }

  .page-faq .faq-index {
    position: sticky;
    top: calc(var(--header-h-compact) + 24px);
  }

  .page-faq .faq-index__list {
    grid-template-columns: 1fr;
  }

  .page-faq .faq-panel .expand-btn {
    grid-template-columns: 42px 1fr auto;
    gap: 16px;
    padding: 20px 0;
  }

  .page-faq .expand-q {
    font-size: 17px;
  }

  .page-faq .faq-group {
    margin-bottom: 44px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-index__list a,
  .page-faq .faq-panel .expand,
  .page-faq .expand-q {
    transition: none;
  }

  .page-faq .faq-index__list a:hover,
  .page-faq .faq-index__list a:focus-visible {
    transform: none;
  }
}
<<<END>>>