.page-faq{
  --faq-text: rgba(234,244,240,.78);
  --faq-panel: rgba(20,53,44,.55);
  --faq-card: rgba(17,22,20,.72);
  background:
    radial-gradient(90% 42% at 84% 0%, rgba(42,31,74,.62), transparent 66%),
    radial-gradient(64% 38% at 2% 10%, rgba(90,31,46,.32), transparent 70%),
    var(--ink);
  color: var(--mist);
  padding-bottom: 76px;
}

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

.page-faq .breadcrumbs{
  display: flex;
  align-items: center;
  gap: 8px;
  padding-top: 18px;
  font-size: 13px;
  color: var(--graphite);
  letter-spacing: .02em;
}
.page-faq .breadcrumbs a{
  color: var(--graphite);
  text-decoration: none;
}
.page-faq .breadcrumbs a:hover{ color: var(--cyan); }
.page-faq .breadcrumbs__sep{ color: rgba(138,154,148,.6); }

/* ---------- 首屏 ---------- */
.page-faq .faq-hero{
  position: relative;
  padding: 6px 0 40px;
}
.page-faq .faq-hero::before{
  content: "";
  position: absolute;
  inset: -60px -8% auto -8%;
  height: 340px;
  background: radial-gradient(58% 100% at 72% 0%, rgba(63,242,198,.15), transparent 72%);
  pointer-events: none;
}
.page-faq .faq-hero__grid{
  position: relative;
  display: grid;
  gap: 28px;
}
.page-faq .faq-hero__main h1{
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-size: clamp(34px, 8vw, 66px);
  font-weight: 900;
  line-height: 1.04;
  letter-spacing: -.02em;
  transform: skewX(-2deg);
  transform-origin: left bottom;
  color: var(--mist);
}
.page-faq .faq-hero__lead{
  margin: 18px 0 0;
  max-width: 34em;
  font-size: 16px;
  line-height: 1.78;
  color: var(--faq-text);
}
.page-faq .faq-hero__actions{
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 26px 0 0;
}
.page-faq .faq-hero__stats{
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}
.page-faq .faq-hero__stats li{
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: center;
  gap: 14px;
  padding: 14px 18px;
  border-radius: var(--r-md);
  border: 1px solid var(--line-soft);
  background: var(--faq-panel);
}
.page-faq .faq-hero__stats .data-num{
  font-family: var(--font-mono);
  font-size: 30px;
  font-weight: 700;
  line-height: 1;
  color: var(--cyan);
}
.page-faq .faq-hero__cap{
  font-size: 13px;
  line-height: 1.6;
  color: var(--faq-text);
}

/* ---------- 目录 + 正文栅格 ---------- */
.page-faq .faq-layout{
  display: grid;
  gap: 26px;
  align-items: start;
}
.page-faq .faq-toc{
  border: 1px solid var(--line-soft);
  border-radius: var(--r-md);
  background: rgba(20,53,44,.5);
  padding: 12px 14px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}
.page-faq .faq-toc__title{
  display: none;
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--graphite);
}
.page-faq .faq-toc__list{
  list-style: none;
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0;
}
.page-faq .faq-toc__list a{
  display: block;
  padding: 8px 14px;
  border-radius: var(--r-pill);
  border: 1px solid var(--line-soft);
  font-size: 13px;
  white-space: nowrap;
  color: var(--mist);
  text-decoration: none;
  transition: border-color .18s var(--ease), color .18s var(--ease), background .18s var(--ease);
}
.page-faq .faq-toc__list a:hover,
.page-faq .faq-toc__list a:focus-visible{
  border-color: var(--line-strong);
  color: var(--cyan);
  background: rgba(63,242,198,.08);
}

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

/* ---------- 章节 ---------- */
.page-faq .faq-section{
  padding: 34px 0;
  border-top: 1px solid var(--line-soft);
  scroll-margin-top: calc(var(--top-h) + 26px);
}
.page-faq .faq-section:first-child{ border-top: 0; padding-top: 6px; }
.page-faq .faq-section__no{
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--cyan);
}
.page-faq .faq-section h2{
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(24px, 5vw, 38px);
  font-weight: 800;
  line-height: 1.22;
  letter-spacing: -.015em;
  color: var(--mist);
}
.page-faq .faq-section__intro{
  margin: 14px 0 0;
  max-width: 40em;
  font-size: 15px;
  line-height: 1.8;
  color: var(--faq-text);
}
.page-faq .faq-section p{ line-height: 1.78; }

/* ---------- 三步 ---------- */
.page-faq .steps{
  position: relative;
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  gap: 14px;
}
.page-faq .step{
  position: relative;
  padding: 22px 20px 24px;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: linear-gradient(158deg, rgba(20,53,44,.92), rgba(17,22,20,.92));
}
.page-faq .step__num{
  display: block;
  font-family: var(--font-mono);
  font-size: 42px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: -.03em;
  color: var(--cyan);
}
.page-faq .step h3{
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 700;
  color: var(--mist);
}
.page-faq .step p{
  margin: 8px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--faq-text);
}

/* ---------- 图 ---------- */
.page-faq .faq-figure{
  margin: 26px 0 0;
}
.page-faq .media{
  overflow: hidden;
  border-radius: var(--r-md);
  border: 1px solid var(--line-soft);
  background: var(--coal);
}
.page-faq .media__img{
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
}
.page-faq .faq-figure figcaption,
.page-faq .faq-split__media figcaption{
  margin-top: 10px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--graphite);
}

/* ---------- 换设备 ---------- */
.page-faq .faq-split{
  display: grid;
  gap: 24px;
  margin-top: 20px;
}
.page-faq .faq-split__text p{
  margin: 0 0 16px;
  font-size: 15px;
  color: var(--faq-text);
}
.page-faq .faq-split__media{
  margin: 0;
}
.page-faq .faq-split__media .media--tall{ max-width: 380px; }

/* ---------- 有序步骤 ---------- */
.page-faq .numberlist{
  counter-reset: faqstep;
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}
.page-faq .numberlist li{
  position: relative;
  counter-increment: faqstep;
  padding: 12px 16px 12px 48px;
  border-radius: var(--r-sm);
  border: 1px solid var(--line-soft);
  background: var(--faq-card);
  font-size: 14px;
  line-height: 1.75;
  color: var(--faq-text);
}
.page-faq .numberlist li::before{
  content: counter(faqstep, decimal-leading-zero);
  position: absolute;
  left: 14px;
  top: 12px;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  color: var(--cyan);
}
.page-faq .numberlist strong{
  display: block;
  color: var(--mist);
  font-weight: 600;
  margin-bottom: 2px;
}

.page-faq .note{
  margin: 16px 0 0;
  padding: 14px 16px;
  border-left: 3px solid var(--orange);
  border-radius: 0 var(--r-sm) var(--r-sm) 0;
  background: rgba(255,107,53,.09);
  font-size: 14px;
  line-height: 1.75;
  color: var(--faq-text);
}

/* ---------- 关注卡片 ---------- */
.page-faq .faq-cards{
  margin-top: 22px;
  display: grid;
  gap: 12px;
}
.page-faq .faq-card{
  padding: 20px;
  border-radius: var(--r-md);
  border: 1px solid var(--line-soft);
  background: linear-gradient(150deg, rgba(42,31,74,.55), rgba(17,22,20,.85));
}
.page-faq .faq-card h3{
  margin: 0;
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 700;
  color: var(--gold);
}
.page-faq .faq-card p{
  margin: 8px 0 0;
  font-size: 14px;
  color: var(--faq-text);
}

/* ---------- 安全清单 ---------- */
.page-faq .faq-checks{
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}
.page-faq .faq-checks li{
  position: relative;
  padding: 12px 16px 12px 38px;
  border-radius: var(--r-sm);
  background: var(--faq-card);
  border: 1px solid var(--line-soft);
  font-size: 14px;
  line-height: 1.72;
  color: var(--faq-text);
}
.page-faq .faq-checks li::before{
  content: "";
  position: absolute;
  left: 16px;
  top: 20px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 0 4px rgba(63,242,198,.14);
}
.page-faq .faq-checks a{ text-decoration: underline; text-underline-offset: 3px; }

/* ---------- FAQ 手风琴 ---------- */
.page-faq .faq-group{ margin-top: 24px; }
.page-faq .faq-group__title{
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: .1em;
  color: var(--graphite);
}
.page-faq .qa{
  border: 1px solid var(--line-soft);
  border-radius: var(--r-sm);
  background: var(--faq-card);
  margin-bottom: 10px;
  transition: border-color .18s var(--ease), background .18s var(--ease);
}
.page-faq .qa summary{
  position: relative;
  padding: 15px 46px 15px 16px;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.6;
  color: var(--mist);
  cursor: pointer;
  list-style: none;
}
.page-faq .qa summary::-webkit-details-marker{ display: none; }
.page-faq .qa summary::after{
  content: "+";
  position: absolute;
  right: 16px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-mono);
  font-size: 20px;
  line-height: 1;
  color: var(--orange);
}
.page-faq .qa summary:hover{ color: var(--cyan); }
.page-faq .qa[open]{
  border-color: var(--line-strong);
  background: rgba(20,53,44,.72);
}
.page-faq .qa[open] summary{ color: var(--cyan); }
.page-faq .qa[open] summary::after{
  content: "−";
  color: var(--cyan);
}
.page-faq .qa__body{
  padding: 0 18px 16px;
  border-top: 1px solid var(--line-soft);
  margin-top: -1px;
  padding-top: 12px;
}
.page-faq .qa__body p{
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--faq-text);
}

/* ---------- 联系 ---------- */
.page-faq .faq-section--support{
  border-top-color: var(--line-strong);
}
.page-faq .faq-contact{
  margin-top: 22px;
  display: grid;
  gap: 12px;
}
.page-faq .faq-contact__card{
  display: grid;
  gap: 6px;
  padding: 18px 20px;
  border-radius: var(--r-md);
  border: 1px solid var(--line);
  background: linear-gradient(150deg, rgba(20,53,44,.9), rgba(17,22,20,.9));
}
.page-faq .faq-contact__key{
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--graphite);
}
.page-faq .faq-contact__val{
  font-size: 17px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--mist);
  word-break: break-word;
}
.page-faq .faq-contact__val.data-num{
  font-family: var(--font-mono);
  font-size: 20px;
  color: var(--orange);
}
.page-faq .faq-support__more{
  margin: 18px 0 0;
  font-size: 14px;
  color: var(--faq-text);
}
.page-faq .faq-support__more a{
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 平板 ---------- */
@media (min-width: 700px){
  .page-faq .faq-hero__grid{ grid-template-columns: minmax(0,1fr) 300px; align-items: end; }
  .page-faq .steps{ grid-template-columns: repeat(3, minmax(0,1fr)); gap: 16px; }
  .page-faq .steps::before{
    content: "";
    position: absolute;
    left: 2%;
    right: 2%;
    top: -14px;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--cyan), transparent);
    opacity: .5;
  }
  .page-faq .faq-cards{ grid-template-columns: repeat(2, minmax(0,1fr)); }
  .page-faq .faq-contact{ grid-template-columns: repeat(3, minmax(0,1fr)); }
  .page-faq .faq-split{ grid-template-columns: minmax(0,1fr) 300px; align-items: start; }
  .page-faq .faq-split__media{ position: sticky; top: calc(var(--top-h) + 20px); }
}

/* ---------- 桌面 ---------- */
@media (min-width: 1000px){
  .page-faq .faq-layout{
    grid-template-columns: 216px minmax(0,1fr);
    gap: 60px;
  }
  .page-faq .faq-toc{
    position: sticky;
    top: calc(var(--top-h) + 20px);
    overflow: visible;
    padding: 20px;
  }
  .page-faq .faq-toc__title{ display: block; }
  .page-faq .faq-toc__list{ flex-direction: column; gap: 4px; }
  .page-faq .faq-toc__list a{
    border-radius: var(--r-sm);
    border-color: transparent;
    white-space: normal;
    padding: 9px 12px;
    color: var(--faq-text);
  }
  .page-faq .faq-section{ padding: 46px 0; }
  .page-faq .faq-hero{ padding-bottom: 54px; }
  .page-faq .faq-hero__stats{ gap: 14px; }
  .page-faq .step{ padding: 26px 24px 28px; }
  .page-faq .step__num{ font-size: 52px; }
  .page-faq .faq-figure{ margin-top: 32px; }
}

@media (prefers-reduced-motion: reduce){
  .page-faq .faq-toc__list a,
  .page-faq .qa{ transition: none; }
  .page-faq .faq-hero__main h1{ transform: none; }
}
<<<END>>>