.page-faq {
  --faq-accent: var(--cyan);
  --faq-accent-soft: rgba(45, 226, 230, 0.12);
  --faq-accent-line: rgba(45, 226, 230, 0.34);
  --faq-gold-line: rgba(232, 180, 90, 0.36);
  --faq-surface: rgba(19, 44, 86, 0.62);
  color: var(--mist);
  background: var(--space-800);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: clamp(24px, 5vw, 44px) 0 clamp(32px, 6vw, 68px);
  border-bottom: 1px solid var(--line-soft);
  background:
    radial-gradient(circle at 84% 8%, rgba(45, 226, 230, 0.2), transparent 52%),
    radial-gradient(circle at 6% 92%, rgba(139, 92, 246, 0.18), transparent 56%),
    linear-gradient(158deg, var(--space-800) 0%, var(--space-700) 58%, var(--space-800) 100%);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background-image:
    linear-gradient(rgba(143, 168, 200, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(143, 168, 200, 0.06) 1px, transparent 1px);
  background-size: 58px 58px;
  -webkit-mask-image: radial-gradient(circle at 46% 28%, #000 0%, transparent 76%);
  mask-image: radial-gradient(circle at 46% 28%, #000 0%, transparent 76%);
  pointer-events: none;
}

.page-faq .faq-hero-inner {
  position: relative;
}

.page-faq .faq-hero .breadcrumbs {
  margin-bottom: 18px;
}

.page-faq .faq-hero .eyebrow {
  margin: 0 0 12px;
  color: var(--faq-accent);
  letter-spacing: 0.14em;
}

.page-faq .faq-hero h1 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.85rem, 5.4vw, 3.4rem);
  line-height: 1.18;
  letter-spacing: 0.015em;
  color: var(--mist);
  max-width: 20ch;
}

.page-faq .faq-lede {
  margin: 18px 0 0;
  max-width: 62ch;
  font-size: clamp(0.95rem, 1.6vw, 1.05rem);
  line-height: 1.82;
  color: var(--slate);
}

.page-faq .faq-stats {
  list-style: none;
  margin: 28px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.page-faq .faq-stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 14px 16px;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-md);
  background: linear-gradient(150deg, rgba(19, 44, 86, 0.7), rgba(7, 21, 46, 0.5));
}

.page-faq .faq-stat-num {
  font-size: 1.5rem;
  line-height: 1;
  color: var(--gold-soft);
}

.page-faq .faq-stat-label {
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  color: var(--slate);
}

/* ---------- 索引 ---------- */
.page-faq .faq-index-section {
  padding-block: clamp(32px, 5vw, 60px);
  background: var(--space-700);
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .faq-index-head h2 {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: clamp(1.3rem, 3vw, 1.75rem);
  letter-spacing: 0.02em;
}

.page-faq .faq-index-head p {
  margin: 0 0 24px;
  color: var(--slate);
  line-height: 1.8;
}

.page-faq .faq-index-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
}

.page-faq .faq-index-card {
  position: relative;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  grid-template-areas:
    "num title"
    "num desc";
  align-items: start;
  column-gap: 14px;
  row-gap: 4px;
  padding: 16px 18px;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-md);
  background: linear-gradient(150deg, rgba(19, 44, 86, 0.72), rgba(13, 33, 69, 0.55));
  text-decoration: none;
  color: inherit;
  transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}

.page-faq .faq-index-card::after {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 2px;
  border-radius: var(--radius-md) 0 0 var(--radius-md);
  background: linear-gradient(180deg, var(--cyan), var(--violet));
  opacity: 0;
  transition: opacity 0.25s ease;
}

.page-faq .faq-index-card:hover,
.page-faq .faq-index-card:focus-visible {
  transform: translateY(-3px);
  border-color: var(--faq-accent-line);
  box-shadow: 0 22px 40px -30px #040B18;
}

.page-faq .faq-index-card:hover::after,
.page-faq .faq-index-card:focus-visible::after {
  opacity: 1;
}

.page-faq .faq-index-num {
  grid-area: num;
  font-size: 0.95rem;
  line-height: 1.6;
  color: var(--faq-accent);
}

.page-faq .faq-index-title {
  grid-area: title;
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--mist);
}

.page-faq .faq-index-desc {
  grid-area: desc;
  font-size: 0.84rem;
  line-height: 1.7;
  color: var(--slate);
}

/* ---------- 主体分栏 ---------- */
.page-faq .faq-body {
  padding-block: clamp(32px, 5vw, 64px);
}

.page-faq .faq-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 28px;
}

.page-faq .faq-aside-inner {
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-lg);
  padding: 18px;
  background: linear-gradient(160deg, rgba(19, 44, 86, 0.62), rgba(7, 21, 46, 0.55));
}

.page-faq .faq-toc-title {
  margin: 0 0 12px;
  font-size: 0.76rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--slate);
}

.page-faq .faq-toc-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 4px;
}

.page-faq .faq-toc-link {
  display: block;
  padding: 9px 10px 9px 14px;
  border-left: 2px solid transparent;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-size: 0.86rem;
  color: var(--slate);
  text-decoration: none;
  transition: color 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}

.page-faq .faq-toc-link:hover,
.page-faq .faq-toc-link:focus-visible {
  color: var(--mist);
  border-left-color: var(--faq-accent);
  background: var(--faq-accent-soft);
}

.page-faq .faq-aside-note {
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px dashed var(--line-soft);
}

.page-faq .faq-aside-note-title {
  margin: 0 0 6px;
  font-size: 0.86rem;
  font-weight: 700;
  color: var(--gold-soft);
}

.page-faq .faq-aside-note p {
  margin: 0;
  font-size: 0.82rem;
  line-height: 1.75;
  color: var(--slate);
  overflow-wrap: anywhere;
}

.page-faq .faq-aside-note a {
  color: var(--faq-accent);
  text-decoration: none;
  border-bottom: 1px solid var(--faq-accent-line);
}

/* ---------- 问答组 ---------- */
.page-faq .faq-group {
  margin-bottom: clamp(32px, 5vw, 56px);
  scroll-margin-top: 96px;
}

.page-faq .faq-group:last-child {
  margin-bottom: 0;
}

.page-faq .faq-group-head {
  position: relative;
  margin-bottom: 16px;
  padding-left: 16px;
  border-left: 3px solid var(--gold);
}

.page-faq .faq-group-num {
  display: block;
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  color: var(--faq-accent);
  margin-bottom: 6px;
}

.page-faq .faq-group-head h2 {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: clamp(1.25rem, 3.2vw, 1.7rem);
  letter-spacing: 0.02em;
}

.page-faq .faq-group-head p {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.8;
  color: var(--slate);
  max-width: 64ch;
}

.page-faq .faq-figure {
  margin: 0 0 18px;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-lg);
  padding: 10px;
  background: linear-gradient(150deg, rgba(19, 44, 86, 0.55), rgba(7, 21, 46, 0.4));
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-md);
  object-fit: cover;
}

.page-faq .faq-figure figcaption {
  margin-top: 10px;
  padding: 0 4px 4px;
  font-size: 0.78rem;
  line-height: 1.7;
  color: var(--slate);
}

/* ---------- 手风琴 ---------- */
.page-faq .faq-list {
  display: grid;
  gap: 10px;
}

.page-faq .faq-item {
  border: 1px solid var(--line-soft);
  border-left: 3px solid transparent;
  border-radius: var(--radius-md);
  background: linear-gradient(150deg, var(--faq-surface), rgba(7, 21, 46, 0.52));
  transition: border-color 0.25s ease, box-shadow 0.25s ease, background 0.25s ease;
}

.page-faq .faq-item:hover {
  border-color: var(--faq-accent-line);
}

.page-faq .faq-item[open] {
  border-left-color: var(--gold);
  border-color: var(--faq-gold-line);
  background: linear-gradient(150deg, rgba(19, 44, 86, 0.92), rgba(13, 33, 69, 0.62));
  box-shadow: 0 24px 44px -34px #040B18;
}

.page-faq .faq-item summary {
  position: relative;
  display: block;
  padding: 15px 46px 15px 16px;
  font-size: 0.95rem;
  font-weight: 700;
  line-height: 1.6;
  color: var(--mist);
  cursor: pointer;
  list-style: none;
}

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

.page-faq .faq-item summary::after {
  content: "";
  position: absolute;
  right: 18px;
  top: 50%;
  width: 8px;
  height: 8px;
  border-right: 2px solid var(--faq-accent);
  border-bottom: 2px solid var(--faq-accent);
  transform: translateY(-70%) rotate(45deg);
  transition: transform 0.25s ease;
}

.page-faq .faq-item[open] summary::after {
  transform: translateY(-30%) rotate(-135deg);
  border-color: var(--gold);
}

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

.page-faq .faq-answer {
  padding: 0 18px 16px;
}

.page-faq .faq-answer p {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.85;
  color: var(--slate);
}

.page-faq .faq-answer a {
  color: var(--faq-accent);
  text-decoration: none;
  border-bottom: 1px solid var(--faq-accent-line);
}

.page-faq .faq-crosslink {
  margin: 16px 0 0;
  padding: 12px 16px;
  border: 1px dashed var(--line-soft);
  border-radius: var(--radius-md);
  font-size: 0.86rem;
  line-height: 1.75;
  color: var(--slate);
}

.page-faq .faq-crosslink a {
  color: var(--gold-soft);
  text-decoration: none;
  border-bottom: 1px solid var(--faq-gold-line);
}

.page-faq .faq-crosslink a:hover {
  color: var(--mist);
}

/* ---------- 联系卡 ---------- */
.page-faq .faq-contact-card {
  margin-top: 18px;
  padding: 20px;
  border: 1px solid var(--faq-gold-line);
  border-radius: var(--radius-lg);
  background:
    radial-gradient(circle at 92% 4%, rgba(45, 226, 230, 0.16), transparent 58%),
    linear-gradient(155deg, rgba(19, 44, 86, 0.9), rgba(7, 21, 46, 0.7));
}

.page-faq .faq-contact-title {
  margin: 0 0 14px;
  font-size: 0.78rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--gold-soft);
}

.page-faq .faq-contact-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-faq .faq-contact-list li {
  display: grid;
  gap: 2px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line-soft);
  font-size: 0.9rem;
  overflow-wrap: anywhere;
}

.page-faq .faq-contact-label {
  font-size: 0.74rem;
  letter-spacing: 0.08em;
  color: var(--slate);
}

.page-faq .faq-contact-list a {
  color: var(--faq-accent);
  text-decoration: none;
  border-bottom: 1px solid var(--faq-accent-line);
}

.page-faq .faq-contact-list a:hover {
  color: var(--mist);
}

.page-faq .faq-contact-note {
  margin: 16px 0 18px;
  font-size: 0.82rem;
  line-height: 1.8;
  color: var(--slate);
}

.page-faq .faq-contact-card .btn {
  display: inline-block;
  padding: 11px 22px;
  border-radius: 999px;
  font-size: 0.88rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-decoration: none;
}

.page-faq .faq-contact-card .btn--gold {
  color: var(--space-900);
  background: linear-gradient(120deg, var(--gold-soft), var(--gold));
  box-shadow: 0 14px 30px -20px var(--gold);
}

.page-faq .faq-contact-card .btn--gold:hover {
  filter: brightness(1.06);
}

/* ---------- 回到顶部 ---------- */
.page-faq .faq-top-wrap {
  padding-bottom: clamp(28px, 5vw, 56px);
  display: flex;
  justify-content: flex-end;
}

.page-faq .faq-top {
  display: inline-block;
  padding: 8px 16px;
  border: 1px solid var(--line-soft);
  border-radius: 999px;
  font-size: 0.8rem;
  letter-spacing: 0.06em;
  color: var(--slate);
  text-decoration: none;
  transition: color 0.2s ease, border-color 0.2s ease;
}

.page-faq .faq-top:hover,
.page-faq .faq-top:focus-visible {
  color: var(--mist);
  border-color: var(--faq-accent-line);
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-faq .faq-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

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

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

  .page-faq .faq-contact-list li {
    grid-template-columns: 96px minmax(0, 1fr);
    align-items: baseline;
    gap: 10px;
  }

  .page-faq .faq-contact-label {
    font-size: 0.8rem;
  }
}

@media (min-width: 1024px) {
  .page-faq .faq-index-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-faq .faq-layout {
    grid-template-columns: 268px minmax(0, 1fr);
    gap: 48px;
    align-items: start;
  }

  .page-faq .faq-aside-inner {
    position: sticky;
    top: 96px;
  }

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

  .page-faq .faq-group-head {
    padding-left: 20px;
  }

  .page-faq .faq-contact-card {
    padding: 26px 28px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-index-card,
  .page-faq .faq-item,
  .page-faq .faq-toc-link,
  .page-faq .faq-top {
    transition: none;
  }

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