.page-faq {
  --faq-body-ink: #C9D8E2;
  --faq-sticky-gap: 24px;
  display: block;
}

.page-faq .eyebrow {
  margin: 0;
  color: var(--cyan);
}

.page-faq h1,
.page-faq .display-title,
.page-faq h2 {
  font-family: var(--font-cn);
  letter-spacing: -0.01em;
}

.page-faq .display-title {
  margin: 10px 0 0;
  font-size: clamp(26px, 4vw, 42px);
  font-weight: 800;
  line-height: 1.14;
  color: var(--sand);
}

.page-faq .prose {
  margin: 14px 0 0;
  max-width: 62ch;
  font-size: 16px;
  line-height: 1.78;
  color: var(--mist);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 4vw, 46px);
  padding-top: clamp(18px, 4vw, 48px);
  padding-bottom: clamp(26px, 4.5vw, 56px);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  top: -28%;
  right: -18%;
  width: min(560px, 82%);
  aspect-ratio: 1;
  background:
    radial-gradient(circle at 34% 32%, rgba(139, 92, 246, 0.3), transparent 62%),
    radial-gradient(circle at 68% 70%, rgba(34, 227, 210, 0.22), transparent 58%);
  z-index: -1;
  pointer-events: none;
}

.page-faq .faq-hero h1 {
  margin: 12px 0 0;
  font-size: clamp(34px, 6.2vw, 74px);
  font-weight: 900;
  line-height: 1.04;
  color: var(--sand);
}

.page-faq .faq-hero__lead {
  margin: 16px 0 0;
  max-width: 56ch;
  font-size: 16px;
  line-height: 1.8;
  color: var(--faq-body-ink);
}

.page-faq .faq-hero__stats {
  display: flex;
  flex-wrap: wrap;
  gap: clamp(14px, 3vw, 34px);
  margin-top: clamp(20px, 3vw, 30px);
  padding-top: 16px;
  border-top: 1px solid var(--line);
}

.page-faq .faq-stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 88px;
}

.page-faq .faq-stat__num {
  font-family: var(--font-num);
  font-size: clamp(28px, 4vw, 40px);
  line-height: 1;
  letter-spacing: 0.02em;
  color: var(--cyan);
}

.page-faq .faq-stat__label {
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--mist);
}

.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(18px, 3vw, 26px);
}

.page-faq .faq-hero__media {
  margin: 0;
}

.page-faq .faq-hero__media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 12 / 7;
  object-fit: cover;
  border: 1px solid var(--line);
  border-radius: var(--r-panel);
  box-shadow: 0 26px 60px rgba(4, 18, 31, 0.6);
}

/* ---------- 分组总览 ---------- */
.page-faq .faq-groups,
.page-faq .faq-fallback {
  margin-top: clamp(34px, 6vw, 72px);
}

.page-faq .faq-groups__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 4vw, 40px);
  padding: clamp(18px, 3.4vw, 40px);
  border: 1px solid var(--line);
  border-radius: var(--r-panel);
  background: linear-gradient(155deg, rgba(10, 34, 51, 0.92), rgba(4, 18, 31, 0.62));
}

.page-faq .faq-groupnav {
  list-style: none;
  margin: clamp(18px, 3vw, 26px) 0 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-faq .faq-groupnav a {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 4px 14px;
  padding: 12px 14px;
  border-left: 2px solid var(--line);
  border-radius: 0 12px 12px 0;
  text-decoration: none;
  color: var(--sand);
  transition: border-color 0.18s var(--ease), background 0.18s var(--ease), transform 0.18s var(--ease);
}

.page-faq .faq-groupnav a:hover,
.page-faq .faq-groupnav a:focus-visible {
  border-left-color: var(--cyan);
  background: rgba(34, 227, 210, 0.08);
  transform: translateX(3px);
}

.page-faq .faq-groupnav .index-num {
  font-family: var(--font-num);
  font-size: 13px;
  letter-spacing: 0.16em;
  color: var(--cyan);
}

.page-faq .faq-groupnav strong {
  font-size: 16px;
  font-weight: 700;
  line-height: 1.3;
}

.page-faq .faq-groupnav span:last-child {
  grid-column: 2;
  font-size: 13px;
  line-height: 1.6;
  color: var(--mist);
}

.page-faq .faq-groups__media {
  margin: 0;
}

.page-faq .faq-groups__media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 5 / 3;
  object-fit: cover;
  border: 1px solid var(--line);
  border-radius: var(--r-panel);
}

.page-faq .faq-groups__caption {
  margin-top: 10px;
  font-size: 12px;
  letter-spacing: 0.06em;
  line-height: 1.6;
  color: var(--mist);
}

/* ---------- 分组索引 + 问答 ---------- */
.page-faq .faq-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 3vw, 40px);
  align-items: start;
  margin-top: clamp(28px, 5vw, 60px);
}

.page-faq .faq-index {
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: var(--r-soft);
  background: rgba(10, 34, 51, 0.55);
}

.page-faq .faq-index__label {
  margin: 0;
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-faq .faq-index__list {
  display: flex;
  gap: 8px;
  margin: 12px 0 0;
  padding: 0 0 6px;
  list-style: none;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
}

.page-faq .faq-index__list li {
  flex: 0 0 auto;
  scroll-snap-align: start;
}

.page-faq .faq-index__list a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  white-space: nowrap;
  text-decoration: none;
  font-size: 14px;
  color: var(--sand);
  transition: border-color 0.18s var(--ease), background 0.18s var(--ease), color 0.18s var(--ease);
}

.page-faq .faq-index__list a:hover,
.page-faq .faq-index__list a:focus-visible {
  border-color: var(--line-strong);
  background: rgba(34, 227, 210, 0.12);
}

.page-faq .faq-index__list .index-num {
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--cyan);
}

.page-faq .faq-index__hint {
  margin: 12px 0 0;
  font-size: 12px;
  line-height: 1.7;
  color: var(--mist);
}

.page-faq .faq-group {
  scroll-margin-top: 96px;
}

.page-faq .faq-group + .faq-group {
  margin-top: clamp(26px, 4vw, 44px);
  padding-top: clamp(22px, 4vw, 36px);
  border-top: 1px solid var(--line);
}

.page-faq .faq-group__head {
  max-width: 64ch;
}

.page-faq .faq-group__title {
  margin: 10px 0 0;
  font-size: clamp(21px, 3vw, 29px);
  font-weight: 800;
  line-height: 1.24;
  color: var(--sand);
}

.page-faq .faq-group__intro {
  margin: 10px 0 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--mist);
}

/* ---------- 折叠问答 ---------- */
.page-faq .faq-item {
  margin-top: 12px;
  border: 1px solid var(--line);
  border-radius: var(--r-soft);
  background: linear-gradient(150deg, rgba(10, 34, 51, 0.72), rgba(4, 18, 31, 0.5));
  transition: border-color 0.2s var(--ease), background 0.2s var(--ease);
}

.page-faq .faq-item[open] {
  border-color: var(--line-strong);
  background: linear-gradient(150deg, rgba(14, 58, 92, 0.55), rgba(10, 34, 51, 0.72));
}

.page-faq .faq-item__q {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 14px 16px;
  list-style: none;
  cursor: pointer;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.6;
  color: var(--sand);
}

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

.page-faq .faq-item__q::after {
  content: "+";
  margin-left: auto;
  flex: 0 0 auto;
  font-family: var(--font-num);
  font-size: 20px;
  line-height: 1;
  color: var(--cyan);
  transition: transform 0.2s var(--ease);
}

.page-faq .faq-item[open] .faq-item__q::after {
  content: "–";
}

.page-faq .faq-item__q:hover::after {
  transform: translateY(-1px);
}

.page-faq .faq-item__q:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: -3px;
}

.page-faq .faq-item__num {
  flex: 0 0 auto;
  padding-top: 3px;
  font-family: var(--font-num);
  font-size: 13px;
  letter-spacing: 0.14em;
  color: var(--cyan);
}

.page-faq .faq-item__a {
  position: relative;
  margin: 0 16px 16px 18px;
  padding: 12px 0 2px 18px;
  border-left: 1px solid rgba(34, 227, 210, 0.45);
  font-size: 15px;
  line-height: 1.8;
  color: var(--faq-body-ink);
}

.page-faq .faq-item__a::before {
  content: "";
  position: absolute;
  left: 0;
  top: 20px;
  width: 12px;
  height: 1px;
  background: rgba(34, 227, 210, 0.45);
}

.page-faq .faq-item__a p {
  margin: 0 0 10px;
}

.page-faq .faq-item__more {
  margin: 0;
}

.page-faq .faq-link {
  display: inline-flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px;
  padding-bottom: 2px;
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  color: var(--cyan);
  border-bottom: 1px solid rgba(34, 227, 210, 0.35);
  transition: border-color 0.18s var(--ease), color 0.18s var(--ease);
}

.page-faq .faq-link::after {
  content: attr(data-target);
  font-family: var(--font-num);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--mist);
  opacity: 0;
  transform: translateX(-4px);
  transition: opacity 0.18s var(--ease), transform 0.18s var(--ease);
}

.page-faq .faq-link:hover,
.page-faq .faq-link:focus-visible {
  border-bottom-color: var(--cyan);
}

.page-faq .faq-link:hover::after,
.page-faq .faq-link:focus-visible::after {
  opacity: 1;
  transform: translateX(0);
}

/* ---------- 兜底通道 ---------- */
.page-faq .faq-fallback__panel {
  padding: clamp(20px, 3.6vw, 44px);
  border: 1px solid var(--line);
  border-radius: var(--r-panel);
  background:
    radial-gradient(circle at 92% 8%, rgba(255, 107, 74, 0.18), transparent 52%),
    linear-gradient(140deg, rgba(14, 58, 92, 0.82), rgba(4, 18, 31, 0.92) 60%, rgba(139, 92, 246, 0.18));
}

.page-faq .faq-fallback__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
  margin-top: clamp(18px, 3vw, 28px);
}

.page-faq .faq-channel {
  display: flex;
  flex-direction: column;
  gap: 8px;
  align-items: flex-start;
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-radius: var(--r-soft);
  background: rgba(4, 18, 31, 0.42);
}

.page-faq .faq-channel__label {
  margin: 0;
  font-family: var(--font-num);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--seafoam);
}

.page-faq .faq-channel__value {
  margin: 0;
  font-size: clamp(16px, 2.4vw, 20px);
  font-weight: 700;
  line-height: 1.4;
  color: var(--sand);
  word-break: break-word;
}

.page-faq .faq-channel__note {
  margin: 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--mist);
}

.page-faq .copy-btn {
  margin-top: 4px;
  padding: 7px 14px;
  border: 1px solid rgba(34, 227, 210, 0.5);
  border-radius: 999px;
  background: transparent;
  font-family: var(--font-cn);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--cyan);
  cursor: pointer;
  transition: background 0.18s var(--ease), color 0.18s var(--ease), border-color 0.18s var(--ease);
}

.page-faq .copy-btn:hover,
.page-faq .copy-btn:focus-visible {
  background: rgba(34, 227, 210, 0.16);
  border-color: var(--cyan);
}

.page-faq .copy-btn[data-copied] {
  color: var(--abyss);
  background: var(--cyan);
  border-color: var(--cyan);
}

.page-faq .faq-fallback__meta {
  margin: clamp(16px, 3vw, 24px) 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--line);
  font-family: var(--font-num);
  font-size: 13px;
  letter-spacing: 0.06em;
  line-height: 1.8;
  color: var(--mist);
}

/* ---------- 响应式 ---------- */
@media (min-width: 700px) {
  .page-faq .faq-fallback__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .faq-item__q {
    font-size: 16px;
    padding: 16px 18px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
    align-items: center;
  }

  .page-faq .faq-hero__media {
    transform: translateY(10px);
  }

  .page-faq .faq-groups__inner {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
    align-items: start;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-body {
    grid-template-columns: 232px minmax(0, 1fr);
  }

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

  .page-faq .faq-index__list {
    flex-direction: column;
    gap: 4px;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-faq .faq-index__list li {
    flex: 1 1 auto;
  }

  .page-faq .faq-index__list a {
    display: flex;
    width: 100%;
    padding: 9px 10px;
    border: 0;
    border-left: 2px solid transparent;
    border-radius: 0 10px 10px 0;
    white-space: normal;
  }

  .page-faq .faq-index__list a:hover,
  .page-faq .faq-index__list a:focus-visible {
    border-left-color: var(--cyan);
    background: rgba(34, 227, 210, 0.1);
  }

  .page-faq .faq-item__q {
    gap: 16px;
  }
}
<<<END>>>