.page-faq {
  --faq-rule: rgba(242, 244, 240, 0.13);
  --faq-rule-soft: rgba(242, 244, 240, 0.065);
  --faq-lift: rgba(18, 26, 31, 0.62);
}

.page-faq img {
  max-width: 100%;
  display: block;
}

/* ---------- 首屏 ---------- */

.page-faq .faq-hero {
  position: relative;
  padding: 32px 0 16px;
  overflow: hidden;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(var(--grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: 72px 72px;
  -webkit-mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.85), transparent 88%);
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.85), transparent 88%);
}

.page-faq .faq-hero > .container {
  position: relative;
  z-index: 1;
}

.page-faq .breadcrumbs {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 30px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--muted);
}

.page-faq .breadcrumbs a {
  color: var(--muted);
  text-decoration: none;
  transition: color 0.18s var(--ease);
}

.page-faq .breadcrumbs a:hover {
  color: var(--blue);
}

.page-faq .breadcrumbs [aria-current="page"] {
  color: var(--paper);
}

.page-faq .faq-hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
  align-items: end;
}

.page-faq .faq-hero-copy .eyebrow {
  margin-bottom: 14px;
  color: var(--teal);
}

.page-faq .faq-hero h1 {
  margin: 0 0 20px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(44px, 12vw, 92px);
  line-height: 0.92;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-faq .faq-hero .lede {
  max-width: 54ch;
  margin: 0 0 16px;
  color: var(--text);
}

.page-faq .faq-hero .note {
  max-width: 52ch;
  margin: 0;
}

.page-faq .faq-hero-media {
  position: relative;
  margin: 0;
  border: 1px solid var(--faq-rule);
  background: var(--graphite);
  overflow: hidden;
  aspect-ratio: 4 / 3;
}

.page-faq .faq-hero-media::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(200deg, rgba(53, 198, 255, 0.14), transparent 58%);
}

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

/* ---------- 主体 ---------- */

.page-faq .faq-body {
  padding: 44px 0 56px;
}

.page-faq .tab-list {
  display: flex;
  gap: 2px;
  overflow-x: auto;
  scrollbar-width: none;
  border-bottom: 1px solid var(--faq-rule);
}

.page-faq .tab-list::-webkit-scrollbar {
  display: none;
}

.page-faq .tab {
  flex: 0 0 auto;
  padding: 13px 16px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.05em;
  color: var(--muted);
  background: none;
  border: 0;
  border-bottom: 2px solid transparent;
  cursor: pointer;
  white-space: nowrap;
  transition: color 0.18s var(--ease), border-color 0.18s var(--ease);
}

.page-faq .tab:hover {
  color: var(--text);
}

.page-faq .tab[aria-selected="true"] {
  color: var(--lime);
  border-bottom-color: var(--lime);
}

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

.page-faq .tab-panel:focus-visible {
  outline: 2px solid var(--blue);
  outline-offset: 8px;
}

.page-faq .faq-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  padding-top: 28px;
}

/* 侧边快速导航 */

.page-faq .faq-toc {
  display: none;
  font-family: var(--font-mono);
}

.page-faq .faq-toc-title {
  margin: 0 0 14px;
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-faq .faq-toc-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-faq .faq-toc-list a {
  display: block;
  color: var(--muted);
  text-decoration: none;
  font-size: 12px;
  line-height: 1.5;
}

/* 问答列表 */

.page-faq .faq-list {
  display: flex;
  flex-direction: column;
  border-top: 1px solid var(--faq-rule-soft);
}

.page-faq .faq-item {
  border-bottom: 1px solid var(--faq-rule-soft);
  scroll-margin-top: calc(var(--header-h) + 28px);
}

.page-faq .faq-item summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 18px 0;
}

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

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

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

.page-faq .faq-num {
  flex: 0 0 auto;
  min-width: 26px;
  padding-top: 2px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--blue);
  font-variant-numeric: tabular-nums;
}

.page-faq .faq-q {
  flex: 1 1 auto;
  min-width: 0;
  font-size: 16px;
  line-height: 1.6;
  font-weight: 500;
  color: var(--paper);
  transition: color 0.18s var(--ease);
}

.page-faq .faq-item summary:hover .faq-q {
  color: var(--lime);
}

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

.page-faq .faq-toggle {
  position: relative;
  flex: 0 0 auto;
  width: 12px;
  height: 12px;
  align-self: center;
  margin-left: 8px;
}

.page-faq .faq-toggle::before,
.page-faq .faq-toggle::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 50%;
  height: 1.5px;
  background: var(--muted);
  transition: transform 0.22s var(--ease), background 0.22s var(--ease);
}

.page-faq .faq-toggle::after {
  transform: rotate(90deg);
}

.page-faq .faq-item[open] .faq-toggle::before,
.page-faq .faq-item[open] .faq-toggle::after {
  background: var(--lime);
}

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

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

.page-faq .faq-a > p {
  margin: 0 0 12px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--text);
}

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

.page-faq .faq-a .field-grid {
  margin-top: 16px;
  padding: 14px 16px;
  border: 1px solid var(--faq-rule);
  border-left: 2px solid var(--teal);
  background: var(--faq-lift);
}

.page-faq .faq-a .field-key {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--muted);
}

.page-faq .faq-a .field-val {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--paper);
  font-variant-numeric: tabular-nums;
}

/* 纠错配图 */

.page-faq .faq-fix-media {
  margin: 26px 0 0;
  border: 1px solid var(--faq-rule);
  background: var(--graphite);
  position: relative;
}

.page-faq .faq-fix-media::after {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 2px;
  background: linear-gradient(90deg, var(--orange), transparent 70%);
  pointer-events: none;
}

.page-faq .faq-fix-media img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.page-faq .faq-fix-media figcaption {
  padding: 10px 14px;
  border-top: 1px solid var(--faq-rule);
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1.6;
  letter-spacing: 0.04em;
  color: var(--muted);
}

/* ---------- 兜底联系 ---------- */

.page-faq .faq-fallback {
  padding: 0 0 72px;
}

.page-faq .faq-fallback-card {
  position: relative;
  padding: 26px 22px;
  border: 1px solid var(--faq-rule);
  background: linear-gradient(180deg, rgba(31, 111, 74, 0.12), rgba(11, 17, 22, 0.6));
}

.page-faq .faq-fallback-card::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  width: 3px;
  background: linear-gradient(180deg, var(--lime), var(--teal), var(--blue));
}

.page-faq .faq-fallback-card .eyebrow {
  color: var(--teal);
  margin-bottom: 12px;
}

.page-faq .faq-fallback-card h2 {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(26px, 5.4vw, 40px);
  line-height: 1.1;
  color: var(--paper);
}

.page-faq .faq-fallback-card > p {
  max-width: 62ch;
  margin: 0 0 18px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--text);
}

.page-faq .faq-contact-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px 34px;
  margin: 0 0 18px;
  padding: 18px 0 0;
  border-top: 1px solid var(--faq-rule-soft);
}

.page-faq .faq-contact-list dt {
  margin-bottom: 4px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-faq .faq-contact-list dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.6;
  color: var(--paper);
  font-variant-numeric: tabular-nums;
}

.page-faq .faq-fallback-card .note {
  margin: 0;
  max-width: 68ch;
}

/* ---------- 响应式 ---------- */

@media (min-width: 640px) {
  .page-faq .faq-q {
    font-size: 17px;
  }

  .page-faq .faq-item summary {
    padding: 20px 0;
    gap: 18px;
  }

  .page-faq .faq-a {
    padding-left: 44px;
    padding-bottom: 26px;
  }

  .page-faq .faq-a > p {
    max-width: 68ch;
  }

  .page-faq .faq-contact-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 768px) {
  .page-faq .faq-hero {
    padding: 52px 0 22px;
  }

  .page-faq .faq-body {
    padding: 56px 0 76px;
  }

  .page-faq .tab {
    padding: 15px 22px;
    font-size: 13.5px;
  }

  .page-faq .faq-fallback-card {
    padding: 40px 44px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero-grid {
    grid-template-columns: minmax(0, 1fr) minmax(280px, 400px);
    gap: 56px;
  }

  .page-faq .faq-layout {
    grid-template-columns: 200px minmax(0, 1fr);
    gap: 64px;
    padding-top: 34px;
  }

  .page-faq .faq-toc {
    display: block;
    position: sticky;
    top: calc(var(--header-h) + 24px);
    align-self: start;
  }

  .page-faq .faq-toc-list a {
    padding: 7px 0 7px 12px;
    border-left: 2px solid var(--faq-rule);
    transition: color 0.18s var(--ease), border-color 0.18s var(--ease);
    white-space: normal;
  }

  .page-faq .faq-toc-list a:hover {
    color: var(--blue);
    border-left-color: var(--blue);
  }

  .page-faq .faq-fix-media {
    margin-top: 32px;
  }
}

@media (min-width: 1180px) {
  .page-faq .faq-layout {
    grid-template-columns: 220px minmax(0, 1fr);
    gap: 80px;
  }
}
<<<END>>>