.page-faq{
  --faq-gap: 20px;
  --faq-card: rgba(12, 20, 36, .72);
  --faq-card-open: rgba(12, 20, 36, .96);
  --faq-body-text: rgba(243, 239, 230, .82);
  color: var(--bone);
  padding-block: 26px 76px;
}

.page-faq .crumbs{ margin-bottom: 22px; }

/* ---------- 首屏索引 ---------- */
.page-faq .faq-hero{
  display: grid;
  gap: 26px;
  padding-bottom: 34px;
  border-bottom: 1px solid var(--line-soft);
}
.page-faq .faq-hero__copy{
  display: grid;
  gap: 16px;
  max-width: 62ch;
  min-width: 0;
}
.page-faq .faq-hero__copy h1{
  margin: 0;
  font-family: var(--font-title);
  font-weight: 800;
  letter-spacing: -.022em;
  font-size: clamp(1.85rem, 5.4vw, 3.05rem);
  line-height: 1.14;
}
.page-faq .faq-hero__copy .lede{
  margin: 0;
  font-size: 1rem;
  line-height: 1.85;
  color: var(--faq-body-text);
}
.page-faq .faq-hero__meta{
  list-style: none;
  margin: 2px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 22px;
  font-size: .82rem;
  color: var(--haze);
}
.page-faq .faq-hero__meta li{
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
}
.page-faq .faq-hero__meta b{
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: .95rem;
  color: var(--cyan);
}
.page-faq .faq-hero__acts{
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 4px;
}
.page-faq .faq-hero__fig{
  margin: 0;
  position: relative;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: var(--ink-1);
  overflow: hidden;
  box-shadow: 0 26px 64px -38px rgba(67, 230, 224, .5);
}
.page-faq .faq-hero__fig::before{
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background: linear-gradient(152deg, rgba(67, 230, 224, .14), transparent 44%, rgba(232, 74, 168, .16));
}
.page-faq .faq-hero__fig img{
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 10 / 7;
  object-fit: cover;
}

@media (min-width: 900px){
  .page-faq .faq-hero{
    grid-template-columns: minmax(0, 1.08fr) minmax(0, .92fr);
    align-items: end;
    gap: 52px;
    padding-bottom: 46px;
  }
}

/* ---------- 主体：主题轨道 + 问答列 ---------- */
.page-faq .faq-body{
  display: grid;
  gap: 30px;
  margin-top: 40px;
  min-width: 0;
}
.page-faq .faq-flow{ min-width: 0; }

.page-faq .faq-topics{
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(12, 20, 36, .92), rgba(7, 11, 20, .86));
  padding: 16px 16px 18px;
  min-width: 0;
}
.page-faq .faq-topics__cap{
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .18em;
  color: var(--haze);
}
.page-faq .faq-topics__nav{
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 4px;
  scrollbar-width: none;
}
.page-faq .faq-topics__nav::-webkit-scrollbar{ display: none; }

.page-faq .faq-topics__link{
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 13px;
  border-radius: 999px;
  border: 1px solid var(--line-soft);
  background: rgba(42, 52, 68, .25);
  color: var(--bone);
  text-decoration: none;
  font-size: .86rem;
  transition: border-color .2s var(--ease), background .2s var(--ease), color .2s var(--ease);
}
.page-faq .faq-topics__link .mono{
  font-family: var(--font-mono);
  font-size: .74rem;
  color: var(--cyan);
}
.page-faq .faq-topics__name{ flex: 1 1 auto; }
.page-faq .faq-topics__num{
  font-family: var(--font-mono);
  font-size: .72rem;
  color: var(--gold);
  border: 1px solid rgba(232, 180, 90, .4);
  border-radius: 999px;
  padding: 1px 6px;
}
.page-faq .faq-topics__link:hover,
.page-faq .faq-topics__link:focus-visible{
  border-color: rgba(67, 230, 224, .6);
  background: rgba(67, 230, 224, .09);
  color: var(--cyan);
}
.page-faq .faq-topics__foot{
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px solid var(--line-soft);
  display: grid;
  gap: 10px;
}
.page-faq .faq-topics__ask{
  display: grid;
  gap: 2px;
  text-decoration: none;
  font-size: .86rem;
  color: var(--gold);
  border: 1px solid rgba(232, 180, 90, .35);
  border-radius: 10px;
  padding: 10px 12px;
  transition: background .2s var(--ease), border-color .2s var(--ease);
}
.page-faq .faq-topics__ask span{
  color: var(--haze);
  font-size: .78rem;
}
.page-faq .faq-topics__ask:hover,
.page-faq .faq-topics__ask:focus-visible{
  background: rgba(232, 180, 90, .1);
  border-color: rgba(232, 180, 90, .65);
}
.page-faq .faq-topics__more{
  margin: 0;
  font-size: .76rem;
  line-height: 1.7;
  color: var(--haze);
}
.page-faq .faq-topics__more a{
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(67, 230, 224, .35);
}

@media (min-width: 980px){
  .page-faq .faq-body{
    grid-template-columns: 236px minmax(0, 1fr);
    gap: 56px;
    align-items: start;
    margin-top: 56px;
  }
  .page-faq .faq-topics{ position: sticky; top: 24px; }
  .page-faq .faq-topics__nav{
    display: block;
    overflow: visible;
    padding-bottom: 0;
  }
  .page-faq .faq-topics__link{
    display: flex;
    width: 100%;
    justify-content: flex-start;
    border-radius: 10px;
    border: 0;
    border-left: 2px solid transparent;
    background: transparent;
    padding: 9px 10px;
    margin-bottom: 2px;
  }
}

/* ---------- 章节 ---------- */
.page-faq .faq-sec{
  scroll-margin-top: 76px;
  min-width: 0;
}
.page-faq .faq-sec + .faq-sec{
  margin-top: 44px;
  padding-top: 36px;
  border-top: 1px solid var(--line-soft);
}
.page-faq .faq-sec__head{
  display: grid;
  gap: 10px;
  margin-bottom: 20px;
}
.page-faq .faq-sec__idx{
  margin: 0;
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .16em;
  color: var(--cyan);
}
.page-faq .faq-sec h2{
  margin: 0;
  font-family: var(--font-title);
  font-weight: 700;
  font-size: clamp(1.35rem, 3.6vw, 1.85rem);
  line-height: 1.25;
  letter-spacing: -.012em;
}
.page-faq .faq-sec__lede{
  margin: 0;
  max-width: 60ch;
  font-size: .95rem;
  line-height: 1.85;
  color: var(--faq-body-text);
}
.page-faq .faq-sec__head--media{ gap: 18px; }
.page-faq .faq-sec__fig{
  margin: 0;
  border: 1px solid var(--line-soft);
  border-radius: 14px;
  overflow: hidden;
  background: var(--ink-1);
}
.page-faq .faq-sec__fig img{
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}
@media (min-width: 780px){
  .page-faq .faq-sec__head--media{
    grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
    align-items: center;
    gap: 30px;
  }
}

/* ---------- 问答卡 ---------- */
.page-faq .faq-list{
  display: grid;
  gap: 12px;
  min-width: 0;
}
.page-faq .qa{
  border: 1px solid var(--line-soft);
  border-radius: 14px;
  background: var(--faq-card);
  overflow: hidden;
  min-width: 0;
  transition: border-color .2s var(--ease), background .2s var(--ease), box-shadow .2s var(--ease);
}
.page-faq .qa:hover{ border-color: rgba(67, 230, 224, .35); }
.page-faq .qa[open]{
  border-color: rgba(67, 230, 224, .55);
  background: var(--faq-card-open);
  box-shadow: 0 18px 44px -32px rgba(67, 230, 224, .7);
}
.page-faq .qa summary{
  list-style: none;
  cursor: pointer;
  position: relative;
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 16px 44px 16px 16px;
  font-family: var(--font-title);
  font-weight: 600;
  font-size: .96rem;
  line-height: 1.5;
  color: var(--bone);
}
.page-faq .qa summary::-webkit-details-marker{ display: none; }
.page-faq .qa summary::after{
  content: "";
  position: absolute;
  right: 18px;
  top: 50%;
  width: 9px;
  height: 9px;
  border-right: 1.5px solid var(--haze);
  border-bottom: 1.5px solid var(--haze);
  transform: translateY(-70%) rotate(45deg);
  transition: transform .22s var(--ease), border-color .22s var(--ease);
}
.page-faq .qa[open] summary::after{
  transform: translateY(-25%) rotate(-135deg);
  border-color: var(--cyan);
}
.page-faq .qa summary:focus-visible{
  outline: 2px solid var(--cyan);
  outline-offset: -2px;
}
.page-faq .qa__no{
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: .74rem;
  font-weight: 600;
  color: var(--cyan);
  border: 1px solid rgba(67, 230, 224, .35);
  border-radius: 6px;
  padding: 1px 6px;
  line-height: 1.4;
}
.page-faq .qa__q{ min-width: 0; }
.page-faq .qa__body{
  padding: 14px 16px 18px;
  border-top: 1px solid var(--line-soft);
  font-size: .92rem;
  line-height: 1.82;
  color: var(--faq-body-text);
}
.page-faq .qa__body p{ margin: 0; }
.page-faq .qa__body p + p{ margin-top: 10px; }
.page-faq .qa__body .mono{
  font-family: var(--font-mono);
  font-size: .84rem;
  color: var(--gold);
}

.page-faq .steps{
  list-style: none;
  margin: 10px 0;
  padding: 0;
  display: grid;
  gap: 9px;
}
.page-faq .steps li{
  display: grid;
  grid-template-columns: 26px minmax(0, 1fr);
  gap: 10px;
  align-items: baseline;
  padding-bottom: 9px;
  border-bottom: 1px dashed rgba(42, 52, 68, .7);
}
.page-faq .steps li:last-child{ border-bottom: 0; padding-bottom: 0; }
.page-faq .steps .mono{
  font-family: var(--font-mono);
  font-size: .78rem;
  font-weight: 600;
  color: var(--cyan);
  letter-spacing: .04em;
}

@media (min-width: 860px){
  .page-faq .faq-list{
    grid-template-columns: repeat(2, minmax(0, 1fr));
    align-items: start;
    gap: 14px;
  }
}

/* ---------- 联系前准备 ---------- */
.page-faq .faq-prep{
  margin-top: 52px;
  padding-top: 38px;
  border-top: 1px solid var(--line-soft);
  display: grid;
  gap: 22px;
  scroll-margin-top: 76px;
  min-width: 0;
}
.page-faq .faq-prep__main{
  display: grid;
  gap: 14px;
  min-width: 0;
}
.page-faq .faq-prep__main h2{
  margin: 0;
  font-family: var(--font-title);
  font-weight: 700;
  font-size: clamp(1.3rem, 3.4vw, 1.78rem);
  line-height: 1.28;
}
.page-faq .faq-prep__intro{
  margin: 0;
  font-size: .94rem;
  line-height: 1.85;
  color: var(--faq-body-text);
  max-width: 56ch;
}
.page-faq .faq-prep__list{
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}
.page-faq .faq-prep__list li{
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr);
  gap: 12px;
  padding: 13px 15px;
  border: 1px solid var(--line-soft);
  border-radius: 12px;
  background: rgba(42, 52, 68, .18);
  transition: border-color .2s var(--ease), background .2s var(--ease);
}
.page-faq .faq-prep__list li:hover{
  border-color: rgba(232, 180, 90, .4);
  background: rgba(42, 52, 68, .3);
}
.page-faq .faq-prep__list .mono{
  font-family: var(--font-mono);
  font-size: .78rem;
  font-weight: 600;
  color: var(--gold);
  padding-top: 2px;
}
.page-faq .faq-prep__list strong{
  display: block;
  font-size: .95rem;
  line-height: 1.5;
  color: var(--bone);
}
.page-faq .faq-prep__list p{
  margin: 5px 0 0;
  font-size: .85rem;
  line-height: 1.75;
  color: var(--haze);
}
.page-faq .faq-prep__side{
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(12, 20, 36, .95), rgba(7, 11, 20, .9));
  padding: 20px;
  display: grid;
  gap: 14px;
  align-content: start;
  min-width: 0;
}
.page-faq .faq-prep__cap{
  margin: 0;
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .18em;
  color: var(--gold);
}
.page-faq .faq-prep__dl{
  margin: 0;
  display: grid;
  gap: 11px;
}
.page-faq .faq-prep__dl > div{ display: grid; gap: 2px; }
.page-faq .faq-prep__dl dt{
  font-size: .74rem;
  color: var(--haze);
}
.page-faq .faq-prep__dl dd{
  margin: 0;
  font-family: var(--font-mono);
  font-size: .9rem;
  color: var(--bone);
  overflow-wrap: anywhere;
}
.page-faq .faq-prep__note{
  margin: 0;
  font-size: .82rem;
  line-height: 1.8;
  color: var(--haze);
  border-top: 1px solid var(--line-soft);
  padding-top: 12px;
}
.page-faq .faq-prep__side .btn{ justify-self: start; }

@media (min-width: 900px){
  .page-faq .faq-prep{
    grid-template-columns: minmax(0, 1.25fr) minmax(0, .75fr);
    gap: 34px;
    align-items: start;
  }
}

/* ---------- 移动端细节 ---------- */
@media (max-width: 520px){
  .page-faq{ padding-block: 20px 60px; }
  .page-faq .faq-hero__copy h1{ font-size: 1.72rem; }
  .page-faq .qa summary{ font-size: .92rem; padding: 14px 40px 14px 14px; }
  .page-faq .qa__body{ padding: 12px 14px 16px; font-size: .9rem; }
  .page-faq .steps li{ grid-template-columns: 22px minmax(0, 1fr); gap: 8px; }
  .page-faq .faq-topics{ padding: 14px; }
}

@media (prefers-reduced-motion: reduce){
  .page-faq .qa,
  .page-faq .qa summary::after,
  .page-faq .faq-topics__link,
  .page-faq .faq-prep__list li{
    transition: none;
  }
}
<<<END>>>