.page-faq {
  --faq-topic-w: 216px;
  display: block;
}

/* ===== 首屏 ===== */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding-block: clamp(20px, 4vw, 40px) clamp(28px, 5vw, 56px);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(58% 66% at 22% 0%, rgba(122, 92, 255, 0.3), transparent 68%),
    radial-gradient(46% 54% at 82% 18%, rgba(43, 230, 246, 0.14), transparent 70%);
  pointer-events: none;
}

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

.page-faq .faq-hero__title {
  margin: 18px 0 0;
  font-family: var(--font-display);
  font-size: clamp(34px, 6.4vw, 62px);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--text);
}

.page-faq .faq-hero__lede {
  max-width: 64ch;
  margin: 20px 0 0;
  font-size: 16.5px;
  line-height: 1.78;
  color: var(--muted);
}

.page-faq .faq-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 26px;
  margin: 30px 0 0;
  padding: 20px 0 0;
  list-style: none;
  border-top: 1px solid var(--line);
  font-size: 13px;
  color: var(--muted);
}

.page-faq .faq-hero__meta .mono {
  margin-right: 7px;
  font-size: 15px;
  font-weight: 700;
  color: var(--cyan);
}

/* ===== 三步自查 ===== */
.page-faq .faq-checkup__media {
  margin: 0 0 clamp(20px, 3vw, 30px);
}

.page-faq .faq-checkup__steps {
  display: grid;
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-checkup__step {
  position: relative;
  padding: 22px 20px 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: linear-gradient(180deg, rgba(19, 26, 58, 0.94), rgba(13, 19, 48, 0.94));
  overflow: hidden;
}

.page-faq .faq-checkup__step::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 2px;
  background: linear-gradient(90deg, var(--violet), var(--cyan));
  opacity: 0.72;
}

.page-faq .faq-checkup__num {
  display: inline-block;
  margin-bottom: 12px;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--cyan);
}

.page-faq .faq-checkup__step-title {
  margin: 0 0 10px;
  font-size: 17px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--text);
}

.page-faq .faq-checkup__step p {
  margin: 0;
  font-size: 15px;
  line-height: 1.76;
  color: var(--muted);
}

/* ===== 主题问答主体 ===== */
.page-faq .faq-body__grid {
  display: grid;
  gap: 24px;
}

.page-faq .faq-topics {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 6px;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
}

.page-faq .faq-topics__link {
  position: relative;
  flex: 0 0 auto;
  display: block;
  padding: 11px 18px;
  border: 1px solid var(--glass-line);
  border-radius: 999px;
  background: var(--glass);
  color: var(--muted);
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  white-space: nowrap;
  transition: color 0.25s var(--ease), border-color 0.25s var(--ease), background 0.25s var(--ease);
}

.page-faq .faq-topics__link:hover,
.page-faq .faq-topics__link:focus-visible {
  color: var(--text);
  border-color: rgba(43, 230, 246, 0.5);
  background: rgba(43, 230, 246, 0.09);
}

.page-faq .faq-panels {
  display: grid;
  gap: clamp(28px, 4vw, 44px);
  min-width: 0;
}

.page-faq .faq-topic {
  scroll-margin-top: 120px;
}

.page-faq .faq-topic__title {
  margin: 0 0 6px;
  font-size: clamp(20px, 2.8vw, 25px);
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--text);
}

.page-faq .faq-topic__hint {
  margin: 0 0 18px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
}

.page-faq .faq-topic__figure {
  margin: 22px 0 0;
}

/* 折叠问答 */
.page-faq .faq-list {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
}

.page-faq .faq-item {
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--plate);
  overflow: hidden;
  transition: border-color 0.25s var(--ease), box-shadow 0.25s var(--ease);
}

.page-faq .faq-item[open] {
  border-color: rgba(122, 92, 255, 0.55);
  box-shadow: 0 0 0 1px rgba(122, 92, 255, 0.16), 0 24px 52px -40px rgba(122, 92, 255, 0.9);
}

.page-faq .faq-item__q {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 16px 18px;
  cursor: pointer;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.58;
  color: var(--text);
  list-style: none;
  transition: color 0.22s var(--ease);
}

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

.page-faq .faq-item__q:hover {
  color: var(--cyan);
}

.page-faq .faq-item__q::after {
  content: "";
  flex: 0 0 auto;
  width: 9px;
  height: 9px;
  margin: 9px 2px 0 auto;
  border-right: 2px solid var(--cyan);
  border-bottom: 2px solid var(--cyan);
  transform: rotate(45deg);
  transition: transform 0.32s var(--ease);
}

.page-faq .faq-item[open] .faq-item__q::after {
  transform: rotate(-135deg);
}

.page-faq .faq-item__a {
  margin: 0;
  padding: 14px 18px 18px;
  border-top: 1px solid var(--line);
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--muted);
}

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

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

.page-faq .faq-item__a a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(43, 230, 246, 0.4);
}

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

/* 主题命中高亮 */
.page-faq .faq-body__grid:has(#topic-signup:target) .faq-topics__link[href="#topic-signup"],
.page-faq .faq-body__grid:has(#topic-data:target) .faq-topics__link[href="#topic-data"],
.page-faq .faq-body__grid:has(#topic-clips:target) .faq-topics__link[href="#topic-clips"],
.page-faq .faq-body__grid:has(#topic-sync:target) .faq-topics__link[href="#topic-sync"] {
  color: var(--text);
  border-color: rgba(122, 92, 255, 0.62);
  background: rgba(122, 92, 255, 0.16);
}

/* ===== 人工支持 ===== */
.page-faq .faq-support__grid {
  display: grid;
  gap: 22px;
}

.page-faq .faq-support__intro .section__title {
  margin-top: 12px;
}

.page-faq .faq-support__intro .lede {
  margin-bottom: 0;
}

.page-faq .faq-support__note {
  margin: 16px 0 0;
  padding-left: 16px;
  border-left: 2px solid rgba(122, 92, 255, 0.6);
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--muted);
}

.page-faq .faq-support__panel {
  padding: 22px 20px 24px;
  border-radius: var(--radius);
}

.page-faq .faq-support__fields {
  display: grid;
  gap: 14px;
  margin: 0;
}

.page-faq .faq-support__field {
  display: grid;
  gap: 4px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-support__field:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

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

.page-faq .faq-support__field-val {
  margin: 0;
  font-size: 15px;
  line-height: 1.6;
  color: var(--text);
  word-break: break-word;
}

.page-faq .faq-support__field-val.mono {
  font-size: 14px;
  letter-spacing: 0.02em;
}

.page-faq .faq-support__checklist {
  margin-top: 22px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
}

.page-faq .faq-support__checklist-title {
  margin: 0 0 12px;
  font-size: 14px;
  font-weight: 700;
  color: var(--text);
}

.page-faq .faq-support__checklist ul {
  display: grid;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-support__checklist li {
  position: relative;
  padding-left: 18px;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--muted);
}

.page-faq .faq-support__checklist li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--gold);
  box-shadow: 0 0 10px rgba(255, 196, 107, 0.7);
}

.page-faq .faq-support__actions {
  display: grid;
  gap: 10px;
  margin-top: 24px;
}

/* ===== 响应式 ===== */
@media (min-width: 720px) {
  .page-faq .faq-checkup__steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

@media (min-width: 900px) {
  .page-faq .faq-support__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 40px;
    align-items: start;
  }

  .page-faq .faq-support__panel {
    padding: 28px 26px 30px;
  }
}

@media (min-width: 980px) {
  .page-faq .faq-body__grid {
    grid-template-columns: var(--faq-topic-w) minmax(0, 1fr);
    gap: 48px;
  }

  .page-faq .faq-topics {
    position: sticky;
    top: 106px;
    align-self: start;
    flex-direction: column;
    gap: 6px;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-faq .faq-topics__link {
    border-radius: var(--radius-sm);
    padding: 13px 18px 13px 22px;
    white-space: normal;
  }

  .page-faq .faq-topics__link::before {
    content: "";
    position: absolute;
    left: 0;
    top: 50%;
    width: 3px;
    height: 0;
    transform: translateY(-50%);
    border-radius: 3px;
    background: linear-gradient(180deg, var(--violet), var(--cyan));
    transition: height 0.28s var(--ease);
  }

  .page-faq .faq-topics__link:hover::before,
  .page-faq .faq-topics__link:focus-visible::before {
    height: 62%;
  }

  .page-faq .faq-item__q {
    padding: 18px 22px;
  }

  .page-faq .faq-item__a {
    padding: 16px 22px 22px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item__q::after,
  .page-faq .faq-topics__link::before,
  .page-faq .faq-item,
  .page-faq .faq-item__q {
    transition: none;
  }
}
<<<END>>>