.page-faq {
  --faq-sticky: 92px;
  background: var(--night);
  color: var(--mist);
  font-family: var(--font-body);
}

.page-faq [id] {
  scroll-margin-top: var(--faq-sticky);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
}

.page-faq .faq-hero__band {
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--hair);
  padding: clamp(24px, 4.4vw, 50px) 0 clamp(22px, 3.4vw, 34px);
  background-image: linear-gradient(158deg, var(--g2) 0%, var(--g1) 48%, #070C10 100%);
}

.page-faq .faq-hero__band::before {
  content: "";
  position: absolute;
  right: -8%;
  bottom: -62%;
  width: min(520px, 62vw);
  aspect-ratio: 1 / 1;
  pointer-events: none;
  background: radial-gradient(circle at 50% 50%, rgba(33, 201, 122, 0.2), transparent 68%);
}

.page-faq .faq-hero__band .wrap {
  position: relative;
  z-index: 1;
}

.page-faq .faq-hero .crumbs {
  margin-bottom: clamp(14px, 2.4vw, 22px);
}

.page-faq .faq-hero h1 {
  margin: 12px 0 0;
  max-width: 15em;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(25px, 4.6vw, 44px);
  line-height: 1.18;
  letter-spacing: -0.012em;
  color: var(--mist);
}

.page-faq .faq-hero__lede {
  margin: 16px 0 0;
  max-width: 46em;
  font-size: clamp(13px, 1.6vw, 16px);
  line-height: 1.9;
  color: rgba(232, 241, 239, 0.8);
}

/* ---------- 索引面板 ---------- */
.page-faq .faq-index {
  margin-top: clamp(20px, 3vw, 34px);
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  border: 1px solid var(--hair);
  border-top: 2px solid var(--grass);
  border-radius: var(--r);
  background: var(--field);
}

.page-faq .faq-index__col {
  padding: 16px clamp(14px, 2vw, 22px) 18px;
  min-width: 0;
}

.page-faq .faq-index__col--hot {
  border-top: 1px solid var(--hair);
}

.page-faq .faq-index__label {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--mute);
}

.page-faq .cat-list,
.page-faq .hot-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-faq .cat-list a {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr) auto;
  align-items: center;
  gap: 10px;
  padding: 10px 0;
  border-top: 1px solid var(--hair-soft);
  text-decoration: none;
  color: var(--mist);
  transition: color 0.18s var(--ease);
}

.page-faq .cat-list li:first-child a {
  border-top: 0;
}

.page-faq .cat-list__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--grass);
}

.page-faq .cat-list__name {
  font-family: var(--font-head);
  font-size: 15px;
  font-weight: 600;
  line-height: 1.4;
}

.page-faq .cat-list__count {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--mute);
  white-space: nowrap;
}

.page-faq .cat-list a:hover .cat-list__name,
.page-faq .cat-list a:focus-visible .cat-list__name {
  color: var(--cyan);
}

.page-faq .hot-list li {
  border-top: 1px solid var(--hair-soft);
}

.page-faq .hot-list li:first-child {
  border-top: 0;
}

.page-faq .hot-list a {
  display: grid;
  grid-template-columns: 14px minmax(0, 1fr);
  gap: 10px;
  padding: 10px 0;
  font-size: 14px;
  line-height: 1.65;
  color: rgba(232, 241, 239, 0.86);
  text-decoration: none;
  transition: color 0.18s var(--ease);
}

.page-faq .hot-list a::before {
  content: "—";
  font-family: var(--font-mono);
  color: var(--cyan);
  line-height: 1.65;
}

.page-faq .hot-list a:hover,
.page-faq .hot-list a:focus-visible {
  color: var(--cyan);
}

/* ---------- 分类区块 ---------- */
.page-faq .faq-cat {
  border-top: 1px solid var(--hair);
  padding: clamp(24px, 3.6vw, 44px) 0;
}

.page-faq .faq-cat__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 18px;
}

.page-faq .faq-cat__rail h2 {
  margin: 6px 0 0;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(20px, 2.4vw, 27px);
  letter-spacing: -0.01em;
  line-height: 1.3;
  color: var(--mist);
}

.page-faq .faq-cat__rail p {
  margin: 10px 0 0;
  font-size: 13px;
  line-height: 1.85;
  color: var(--mute);
}

.page-faq .faq-cat__rail .idx--big {
  color: transparent;
  -webkit-text-stroke: 1px rgba(53, 240, 224, 0.45);
}

.page-faq .faq-cat__body {
  min-width: 0;
}

.page-faq .faq-cat__body .media {
  margin: 0 0 20px;
}

/* ---------- 问答条目 ---------- */
.page-faq .qa {
  border-bottom: 1px solid var(--hair-soft);
}

.page-faq .qa__q {
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr) 16px;
  gap: 10px;
  align-items: start;
  padding: 15px 2px 15px 12px;
  border-left: 2px solid transparent;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-head);
  font-size: clamp(14px, 1.7vw, 16px);
  font-weight: 600;
  line-height: 1.6;
  color: var(--mist);
  transition: border-color 0.18s var(--ease), background-color 0.18s var(--ease);
}

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

.page-faq .qa__q:hover {
  border-left-color: var(--hair);
  background-color: rgba(53, 240, 224, 0.05);
}

.page-faq .qa[open] > .qa__q {
  border-left-color: var(--cyan);
  background-color: var(--grass-08);
}

.page-faq .qa__num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--grass);
  padding-top: 4px;
}

.page-faq .qa__sign {
  font-family: var(--font-mono);
  font-size: 15px;
  line-height: 1.7;
  text-align: center;
  color: var(--mute);
}

.page-faq .qa__sign::before {
  content: "+";
}

.page-faq .qa[open] .qa__sign {
  color: var(--cyan);
}

.page-faq .qa[open] .qa__sign::before {
  content: "−";
}

.page-faq .qa__body {
  padding: 2px 4px 20px calc(12px + 30px + 10px);
  font-size: 14px;
  line-height: 1.9;
  color: rgba(232, 241, 239, 0.78);
}

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

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

.page-faq .steps {
  margin: 10px 0 12px;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 8px;
}

.page-faq .steps li {
  display: grid;
  grid-template-columns: 16px minmax(0, 1fr);
  gap: 8px;
  align-items: start;
}

.page-faq .steps li::before {
  content: "—";
  font-family: var(--font-mono);
  color: var(--grass);
  line-height: 1.9;
}

/* ---------- 联系面板 ---------- */
.page-faq .contact-panel {
  margin-top: 20px;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0;
  padding: clamp(14px, 2.4vw, 22px);
  border: 1px solid var(--hair);
  border-left: 2px solid var(--grass);
  border-radius: var(--r);
  background-image: linear-gradient(152deg, rgba(18, 62, 56, 0.5) 0%, rgba(14, 23, 29, 0.92) 62%);
}

.page-faq .contact-panel__cell {
  display: grid;
  grid-template-columns: 84px minmax(0, 1fr);
  gap: 10px;
  padding: 10px 0;
  border-top: 1px solid var(--hair-soft);
  min-width: 0;
}

.page-faq .contact-panel__cell:first-child {
  border-top: 0;
}

.page-faq .contact-panel__key {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  line-height: 1.9;
  color: var(--mute);
}

.page-faq .contact-panel__val {
  font-size: 14px;
  line-height: 1.7;
  color: var(--mist);
  word-break: break-word;
}

.page-faq .contact-panel__note {
  margin: 12px 0 0;
  padding-top: 12px;
  border-top: 1px dashed var(--hair);
  font-size: 13px;
  line-height: 1.8;
  color: var(--mute);
}

.page-faq .contact-panel__btn {
  justify-self: start;
  margin-top: 14px;
}

/* ---------- 收尾 ---------- */
.page-faq .faq-end {
  padding: 20px 0 42px;
}

.page-faq .faq-end p {
  margin: 0;
  display: flex;
  gap: 10px;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
}

.page-faq .faq-end p::before {
  content: "—";
  color: var(--grass);
}

/* ---------- 断点 ---------- */
@media (min-width: 640px) {
  .page-faq .contact-panel {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: clamp(16px, 2.6vw, 32px);
  }

  .page-faq .contact-panel__cell {
    border-top: 1px solid var(--hair-soft);
  }

  .page-faq .contact-panel__cell--wide,
  .page-faq .contact-panel__note,
  .page-faq .contact-panel__btn {
    grid-column: 1 / -1;
  }
}

@media (min-width: 860px) {
  .page-faq .faq-index {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, 1fr);
  }

  .page-faq .faq-index__col--hot {
    border-top: 0;
    border-left: 1px solid var(--hair);
  }
}

@media (min-width: 900px) {
  .page-faq {
    --faq-sticky: 104px;
  }

  .page-faq .faq-cat__grid {
    grid-template-columns: 240px minmax(0, 1fr);
    column-gap: clamp(28px, 4.6vw, 64px);
    align-items: start;
  }

  .page-faq .faq-cat__rail {
    position: sticky;
    top: var(--faq-sticky);
  }
}

@media (min-width: 1100px) {
  .page-faq .faq-cat__grid {
    grid-template-columns: 272px minmax(0, 1fr);
  }

  .page-faq .faq-cat__body .media {
    margin-bottom: 26px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .qa__q,
  .page-faq .cat-list a,
  .page-faq .hot-list a {
    transition: none;
  }
}
<<<END>>>