.page-faq {
  --faq-rail: 208px;
  --faq-gap: clamp(18px, 3vw, 32px);
  background: var(--c-deep);
  color: var(--c-ice);
}

.page-faq .section {
  padding-block: clamp(46px, 6.5vw, 92px);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: calc(var(--header-h) + 30px) 0 clamp(42px, 6vw, 88px);
  background:
    radial-gradient(120% 92% at 84% 4%, rgba(19, 242, 200, 0.16), transparent 62%),
    radial-gradient(80% 70% at 4% 96%, rgba(255, 107, 26, 0.10), transparent 66%),
    linear-gradient(178deg, #041713 0%, #082A24 100%);
  border-bottom: var(--hair);
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image: repeating-linear-gradient(180deg, rgba(46, 111, 99, 0.30) 0 1px, transparent 1px 5px);
  opacity: 0.22;
}

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

.page-faq .breadcrumb {
  margin-bottom: clamp(26px, 4vw, 46px);
}

.page-faq .faq-hero-grid {
  display: grid;
  gap: clamp(30px, 5vw, 60px);
  align-items: center;
}

.page-faq .hero-copy {
  max-width: 34ch;
}

.page-faq .hero-title,
.page-faq .hero-copy h1 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2.05rem, 6vw, 4.1rem);
  line-height: 1.04;
  letter-spacing: -0.012em;
  margin: 14px 0 20px;
  color: var(--c-ice);
  text-wrap: balance;
}

.page-faq .hero-lede {
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.85;
  color: var(--c-sage);
  margin: 0 0 26px;
  max-width: 46ch;
}

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

.page-faq .hero-visual {
  margin: 0;
  position: relative;
  border: var(--hair);
  background: var(--c-data);
  clip-path: polygon(0 0, calc(100% - 30px) 0, 100% 30px, 100% 100%, 30px 100%, 0 calc(100% - 30px));
}

.page-faq .hero-visual img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  aspect-ratio: 1 / 1;
  filter: saturate(1.05) contrast(1.04);
}

.page-faq .hero-visual figcaption {
  position: absolute;
  left: 16px;
  bottom: 14px;
  padding: 5px 10px;
  background: rgba(4, 23, 19, 0.82);
  border-left: 2px solid var(--c-mint);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--c-mist);
}

/* ---------- 图例 ---------- */
.page-faq .faq-legend {
  background:
    linear-gradient(180deg, rgba(8, 42, 36, 0.55), transparent 70%),
    var(--c-deep);
}

.page-faq .legend-grid {
  display: grid;
  gap: clamp(14px, 2vw, 22px);
  margin-top: clamp(26px, 4vw, 44px);
}

.page-faq .legend-card {
  --accent: var(--c-mint);
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 9px;
  padding: 22px 20px 20px;
  overflow: hidden;
  text-decoration: none;
  color: var(--c-ice);
  background: linear-gradient(160deg, rgba(8, 42, 36, 0.95), rgba(4, 23, 19, 0.95));
  border: var(--hair);
  border-left: 3px solid var(--accent);
  clip-path: polygon(0 0, calc(100% - 18px) 0, 100% 18px, 100% 100%, 0 100%);
  transition: transform 0.22s var(--ease), box-shadow 0.22s var(--ease), background 0.22s var(--ease);
}

.page-faq .legend-card--b { --accent: var(--c-amber); }
.page-faq .legend-card--c { --accent: var(--c-orange); }
.page-faq .legend-card--d { --accent: var(--c-mist); }

.page-faq .legend-card:hover,
.page-faq .legend-card:focus-visible {
  transform: translateY(-4px);
  background: linear-gradient(160deg, rgba(11, 22, 38, 0.96), rgba(8, 42, 36, 0.96));
  box-shadow: var(--shadow-deep);
  outline: none;
}

.page-faq .legend-card:focus-visible {
  outline: 2px solid var(--c-mint);
  outline-offset: 3px;
}

.page-faq .legend-ghost {
  position: absolute;
  right: 6px;
  top: -14px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 84px;
  line-height: 1;
  color: var(--accent);
  opacity: 0.12;
  pointer-events: none;
}

.page-faq .legend-code {
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--accent);
}

.page-faq .legend-card h3 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.35rem;
  letter-spacing: 0.01em;
}

.page-faq .legend-card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--c-sage);
}

.page-faq .legend-count {
  margin-top: 4px;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--c-ice);
  opacity: 0.72;
}

/* ---------- 问答区 ---------- */
.page-faq .faq-answers {
  background: var(--c-deep);
  border-top: var(--hair);
}

.page-faq .qa-layout {
  margin-top: clamp(24px, 4vw, 42px);
  display: grid;
  gap: clamp(24px, 4vw, 56px);
}

.page-faq .qa-rail {
  border-top: 2px solid var(--c-mint);
  padding-top: 14px;
}

.page-faq .qa-rail .coord {
  margin: 0 0 12px;
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--c-sage);
}

.page-faq .qa-rail ol {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-faq .qa-rail a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  font-size: 14px;
  color: var(--c-ice);
  text-decoration: none;
  border: var(--hair);
  background: rgba(8, 42, 36, 0.7);
  transition: border-color 0.18s var(--ease), color 0.18s var(--ease);
}

.page-faq .qa-rail a .mono {
  font-size: 11px;
  color: var(--c-mint);
}

.page-faq .qa-rail a:hover,
.page-faq .qa-rail a:focus-visible {
  border-color: var(--c-mint);
  color: var(--c-mist);
  outline: none;
}

.page-faq .qa-rail a:focus-visible {
  outline: 2px solid var(--c-mint);
  outline-offset: 2px;
}

.page-faq .qa-main {
  display: grid;
  gap: clamp(30px, 5vw, 56px);
  min-width: 0;
}

.page-faq .qa-group {
  scroll-margin-top: calc(var(--header-h) + 24px);
  min-width: 0;
}

.page-faq .qa-group-head {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding-bottom: 14px;
  border-bottom: 2px solid rgba(19, 242, 200, 0.55);
}

.page-faq .qa-group-code {
  flex: 0 0 auto;
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  font-size: 16px;
  font-weight: 700;
  color: var(--c-deep);
  background: var(--c-mint);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 10px), calc(100% - 10px) 100%, 0 100%);
}

.page-faq .qa-group-head h3 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.2rem, 2.4vw, 1.55rem);
  line-height: 1.25;
  color: var(--c-ice);
}

.page-faq .qa-group-head p {
  margin: 5px 0 0;
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--c-sage);
}

.page-faq .qa-item {
  border-bottom: var(--hair);
}

.page-faq .qa-item summary {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: baseline;
  gap: 12px;
  padding: 17px 4px;
  cursor: pointer;
  list-style: none;
  transition: background 0.18s var(--ease);
}

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

.page-faq .qa-item summary::after {
  content: "+";
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1;
  color: var(--c-mint);
}

.page-faq .qa-item[open] summary::after {
  content: "−";
  color: var(--c-orange);
}

.page-faq .qa-item summary:hover {
  background: rgba(19, 242, 200, 0.05);
}

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

.page-faq .qa-num {
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--c-mint);
}

.page-faq .qa-q {
  font-size: clamp(15px, 1.7vw, 17px);
  font-weight: 600;
  line-height: 1.6;
  color: var(--c-ice);
}

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

.page-faq .qa-a {
  margin: 0 0 20px 8px;
  padding-left: 16px;
  border-left: 1px dashed rgba(19, 242, 200, 0.4);
}

.page-faq .qa-a p {
  margin: 0 0 10px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--c-sage);
}

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

.page-faq .qa-a a {
  color: var(--c-mist);
  text-decoration: underline;
  text-decoration-color: rgba(19, 242, 200, 0.5);
  text-underline-offset: 3px;
}

.page-faq .qa-a a:hover {
  color: var(--c-mint);
}

.page-faq .qa-steps,
.page-faq .qa-points {
  list-style: none;
  margin: 10px 0 0;
  padding: 0;
  display: grid;
  gap: 9px;
}

.page-faq .qa-steps {
  counter-reset: faq-step;
}

.page-faq .qa-steps li {
  counter-increment: faq-step;
  position: relative;
  padding-left: 32px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--c-sage);
}

.page-faq .qa-steps li::before {
  content: counter(faq-step, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 2px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--c-amber);
}

.page-faq .qa-points li {
  position: relative;
  padding-left: 18px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--c-sage);
}

.page-faq .qa-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 7px;
  height: 7px;
  background: var(--c-mint);
  opacity: 0.85;
}

.page-faq .qa-points strong {
  color: var(--c-ice);
  font-weight: 600;
}

/* ---------- 客服 ---------- */
.page-faq .faq-contact {
  background:
    radial-gradient(90% 80% at 88% 10%, rgba(19, 242, 200, 0.10), transparent 64%),
    var(--c-panel);
  border-top: var(--hair);
}

.page-faq .contact-panel {
  display: grid;
  gap: clamp(26px, 4vw, 52px);
  padding: clamp(24px, 4vw, 48px);
  background: linear-gradient(160deg, rgba(11, 22, 38, 0.96), rgba(4, 23, 19, 0.96));
  border: var(--hair);
  clip-path: polygon(0 0, calc(100% - 26px) 0, 100% 26px, 100% 100%, 26px 100%, 0 calc(100% - 26px));
}

.page-faq .contact-copy {
  min-width: 0;
}

.page-faq .contact-lede {
  margin: 14px 0 24px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--c-sage);
  max-width: 52ch;
}

.page-faq .contact-channels {
  margin: 0;
  display: grid;
  gap: 0;
  border-top: var(--hair);
}

.page-faq .contact-item {
  display: grid;
  gap: 4px;
  padding: 13px 0;
  border-bottom: var(--hair);
}

.page-faq .contact-item dt {
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--c-mint);
}

.page-faq .contact-item dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--c-ice);
  word-break: break-word;
}

.page-faq .contact-item dd.mono {
  font-family: var(--font-mono);
  font-size: 16px;
  letter-spacing: 0.02em;
  color: var(--c-amber);
}

.page-faq .contact-note {
  margin: 20px 0 0;
  padding: 12px 14px;
  font-size: 13px;
  line-height: 1.8;
  color: var(--c-sage);
  background: rgba(4, 23, 19, 0.72);
  border-left: 2px solid var(--c-orange);
}

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

.page-faq .contact-visual {
  margin: 0;
  position: relative;
  align-self: start;
}

.page-faq .contact-visual img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  border: var(--hair);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 22px), calc(100% - 22px) 100%, 0 100%);
}

.page-faq .contact-visual .media-caption {
  display: block;
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--c-sage);
}

/* ---------- 响应式 ---------- */
@media (min-width: 600px) {
  .page-faq .legend-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .contact-item {
    grid-template-columns: 108px minmax(0, 1fr);
    align-items: baseline;
    gap: 16px;
  }

  .page-faq .contact-item dt {
    padding-top: 3px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero-grid {
    grid-template-columns: minmax(0, 1.04fr) minmax(0, 0.96fr);
  }

  .page-faq .contact-panel {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    align-items: center;
  }
}

@media (min-width: 1024px) {
  .page-faq .legend-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-faq .qa-layout {
    grid-template-columns: var(--faq-rail) minmax(0, 1fr);
    align-items: start;
  }

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

  .page-faq .qa-rail ol {
    flex-direction: column;
    flex-wrap: nowrap;
    gap: 6px;
  }

  .page-faq .qa-rail a {
    display: flex;
    width: 100%;
    border-color: transparent;
    border-bottom: var(--hair);
    background: transparent;
    padding: 9px 4px;
  }

  .page-faq .qa-rail a:hover,
  .page-faq .qa-rail a:focus-visible {
    border-bottom-color: var(--c-mint);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .legend-card,
  .page-faq .qa-item summary,
  .page-faq .qa-rail a {
    transition: none;
  }

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