.page-faq{
  position:relative;
  color:var(--white);
  font-family:var(--font-body);
  overflow-x:hidden;
}

.page-faq h1,
.page-faq h2,
.page-faq h3{
  margin:0;
  font-family:var(--font-display);
  letter-spacing:-.02em;
  line-height:1.1;
}

.page-faq p{
  margin:0;
}

.page-faq .inline-link{
  color:var(--cyan);
  text-decoration:none;
  border-bottom:1px solid rgba(57,230,255,.45);
  padding-bottom:1px;
}

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

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

/* ---------- 首屏 ---------- */
.page-faq .faq-hero{
  position:relative;
  padding:var(--step-4) 0 var(--step-6);
}

.page-faq .faq-hero::before{
  content:"";
  position:absolute;
  top:-160px;
  left:-14%;
  width:min(820px,130%);
  height:600px;
  background:
    radial-gradient(closest-side, rgba(123,77,255,.34), rgba(123,77,255,0) 72%),
    radial-gradient(closest-side at 72% 38%, rgba(57,230,255,.16), rgba(57,230,255,0) 70%);
  pointer-events:none;
  z-index:0;
}

.page-faq .faq-hero__grid{
  position:relative;
  z-index:1;
  display:grid;
  gap:var(--step-5);
  align-items:end;
}

.page-faq .faq-hero__copy .eyebrow{
  color:var(--paper-grey);
}

.page-faq .faq-hero h1{
  margin-top:14px;
  font-size:clamp(32px,6vw,68px);
  font-weight:800;
  max-width:16em;
}

.page-faq .faq-hero__lead{
  margin-top:18px;
  max-width:34em;
  font-size:var(--step-3);
  line-height:1.8;
  color:rgba(247,248,255,.84);
}

.page-faq .faq-hero__note{
  margin-top:14px;
  font-family:var(--font-mono);
  font-size:var(--step-1);
  letter-spacing:.04em;
  color:var(--paper-grey);
  line-height:1.7;
}

.page-faq .faq-hero__figure{
  border:1px solid var(--line-strong);
  padding:8px;
  background:linear-gradient(160deg, rgba(58,31,112,.55), rgba(7,7,15,.7));
}

.page-faq .media-frame img{
  display:block;
  width:100%;
  height:auto;
  max-width:100%;
  object-fit:cover;
}

.page-faq .faq-hero__figure img{
  aspect-ratio:3 / 2;
}

/* ---------- 四个现象入口 ---------- */
.page-faq .signal-grid{
  position:relative;
  z-index:1;
  list-style:none;
  margin:var(--step-5) 0 0;
  padding:0;
  display:grid;
  gap:10px;
  grid-template-columns:1fr;
}

.page-faq .signal-card{
  --lamp:var(--cyan);
  display:grid;
  grid-template-columns:auto 1fr;
  grid-template-areas:
    "lamp kicker"
    "title title"
    "desc desc";
  gap:8px 10px;
  padding:16px 16px 18px;
  border:1px solid var(--line);
  border-radius:var(--radius);
  background:linear-gradient(150deg, rgba(17,19,39,.94), rgba(7,7,15,.74));
  color:inherit;
  text-decoration:none;
  transition:border-color .22s var(--ease), transform .22s var(--ease), box-shadow .22s var(--ease);
}

.page-faq .signal-card:hover,
.page-faq .signal-card:focus-visible{
  border-color:var(--line-strong);
  transform:translateY(-2px);
  box-shadow:0 14px 30px -22px rgba(123,77,255,.9);
  outline:none;
}

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

.page-faq .signal-card__lamp{
  grid-area:lamp;
  align-self:center;
  width:7px;
  height:7px;
  border-radius:50%;
  background:var(--lamp);
  box-shadow:0 0 10px var(--lamp);
}

.page-faq .signal-card__kicker{
  grid-area:kicker;
  font-family:var(--font-mono);
  font-size:var(--step-1);
  letter-spacing:.16em;
  color:var(--paper-grey);
}

.page-faq .signal-card__title{
  grid-area:title;
  font-family:var(--font-display);
  font-weight:700;
  font-size:var(--step-4);
  letter-spacing:-.01em;
}

.page-faq .signal-card__desc{
  grid-area:desc;
  font-size:var(--step-2);
  line-height:1.65;
  color:var(--paper-grey);
}

.page-faq .signal-card--violet{ --lamp:var(--violet); }
.page-faq .signal-card--cyan{ --lamp:var(--cyan); }
.page-faq .signal-card--amber{ --lamp:var(--amber); }
.page-faq .signal-card--paper{ --lamp:var(--paper-grey); }

/* ---------- 主体双栏 ---------- */
.page-faq .faq-layout{
  display:grid;
  gap:var(--step-6);
  align-items:start;
  padding-top:var(--step-5);
}

.page-faq .faq-section-title{
  font-size:clamp(24px,3.4vw,38px);
  font-weight:800;
}

.page-faq .faq-section-intro{
  margin-top:12px;
  max-width:40em;
  font-size:var(--step-2);
  line-height:1.8;
  color:rgba(247,248,255,.78);
}

/* ---------- 问题条目 ---------- */
.page-faq .issue-group{
  margin-top:var(--step-5);
  scroll-margin-top:110px;
}

.page-faq .issue-group__title{
  display:flex;
  align-items:baseline;
  gap:12px;
  padding-bottom:10px;
  margin-bottom:2px;
  border-bottom:1px solid var(--line-strong);
  font-size:var(--step-5);
  font-weight:700;
}

.page-faq .issue-group__no{
  font-family:var(--font-mono);
  font-size:var(--step-2);
  letter-spacing:.12em;
  color:var(--amber);
}

.page-faq .issue{
  border-bottom:1px solid var(--line);
  transition:background .24s var(--ease), box-shadow .24s var(--ease);
}

.page-faq .issue[open]{
  background:linear-gradient(90deg, rgba(123,77,255,.13), rgba(123,77,255,0) 64%);
  box-shadow:inset 2px 0 0 var(--violet);
}

.page-faq .issue summary{
  display:grid;
  grid-template-columns:auto 1fr auto;
  align-items:baseline;
  gap:12px;
  padding:16px 14px 16px 12px;
  cursor:pointer;
  list-style:none;
  font-size:var(--step-3);
  font-weight:600;
  line-height:1.55;
}

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

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

.page-faq .issue__no{
  font-family:var(--font-mono);
  font-size:var(--step-2);
  font-weight:400;
  letter-spacing:.06em;
  color:var(--paper-grey);
}

.page-faq .issue[open] .issue__no{ color:var(--amber); }

.page-faq .issue__mark{
  font-family:var(--font-mono);
  font-size:var(--step-3);
  line-height:1;
  color:var(--cyan);
}

.page-faq .issue__mark::before{ content:"+"; }
.page-faq .issue[open] .issue__mark::before{ content:"–"; }

.page-faq .issue__body{
  padding:0 16px 20px 12px;
  display:grid;
  gap:10px;
}

.page-faq .issue__row{
  display:grid;
  gap:4px;
}

.page-faq .issue__label{
  font-family:var(--font-mono);
  font-size:var(--step-1);
  letter-spacing:.14em;
  color:var(--paper-grey);
  border-left:2px solid var(--line-strong);
  padding-left:8px;
}

.page-faq .issue__row--next .issue__label{
  color:var(--amber);
  border-left-color:var(--amber);
}

.page-faq .issue__text{
  font-size:var(--step-2);
  line-height:1.8;
  color:rgba(247,248,255,.86);
}

/* ---------- 检查清单 ---------- */
.page-faq .checklist-block{
  margin-top:var(--step-7);
  scroll-margin-top:110px;
}

.page-faq .checklist-wrap{
  display:grid;
  gap:var(--step-5);
  margin-top:var(--step-4);
}

.page-faq .checklist{
  list-style:none;
  margin:0;
  padding:0;
}

.page-faq .checklist__item{
  position:relative;
  border-top:1px solid var(--line);
}

.page-faq .checklist__item:last-child{
  border-bottom:1px solid var(--line);
}

.page-faq .checklist__box{
  position:absolute;
  top:16px;
  left:14px;
  width:22px;
  height:22px;
  margin:0;
  opacity:0;
}

.page-faq .checklist__label{
  display:grid;
  grid-template-columns:auto 1fr;
  gap:14px;
  align-items:start;
  padding:16px 14px;
  cursor:pointer;
}

.page-faq .checklist__box:focus-visible + .checklist__label{
  outline:2px solid var(--cyan);
  outline-offset:-2px;
}

.page-faq .checklist__dot{
  width:20px;
  height:20px;
  margin-top:3px;
  border:1px solid var(--line-strong);
  border-radius:50%;
  display:grid;
  place-items:center;
  transition:border-color .2s var(--ease), background .2s var(--ease);
}

.page-faq .checklist__dot::after{
  content:"";
  width:7px;
  height:7px;
  border-radius:50%;
  background:transparent;
  transition:background .2s var(--ease);
}

.page-faq .checklist__box:checked + .checklist__label .checklist__dot{
  border-color:var(--amber);
  background:rgba(255,181,71,.16);
}

.page-faq .checklist__box:checked + .checklist__label .checklist__dot::after{
  background:var(--amber);
}

.page-faq .checklist__text{
  font-size:var(--step-2);
  line-height:1.8;
  color:rgba(247,248,255,.84);
}

.page-faq .checklist__box:checked + .checklist__label .checklist__text{
  color:var(--white);
}

.page-faq .checklist__text strong{
  color:var(--white);
  font-weight:600;
}

.page-faq .checklist__no{
  display:inline-block;
  margin-right:10px;
  font-family:var(--font-mono);
  font-size:var(--step-1);
  letter-spacing:.12em;
  color:var(--amber);
}

.page-faq .checklist__figure{
  margin:0;
  border:1px solid var(--line);
  padding:8px;
  background:linear-gradient(180deg, rgba(17,19,39,.9), rgba(7,7,15,.7));
}

.page-faq .checklist__figure img{
  display:block;
  width:100%;
  height:auto;
  aspect-ratio:1 / 1;
  object-fit:cover;
}

.page-faq .checklist__caption{
  padding:10px 4px 2px;
  font-size:var(--step-1);
  line-height:1.7;
  color:var(--paper-grey);
}

/* ---------- 右侧准备栏 ---------- */
.page-faq .faq-rail{
  border:1px solid var(--line);
  border-radius:var(--radius);
  background:linear-gradient(170deg, rgba(17,19,39,.96), rgba(7,7,15,.88));
  padding:22px 20px;
}

.page-faq .faq-rail__title{
  font-size:var(--step-4);
  font-weight:700;
}

.page-faq .faq-rail__intro{
  margin-top:10px;
  font-size:var(--step-2);
  line-height:1.75;
  color:var(--paper-grey);
}

.page-faq .prepare-list{
  list-style:none;
  margin:18px 0 0;
  padding:0;
  display:grid;
  gap:12px;
}

.page-faq .prepare-item{
  display:grid;
  grid-template-columns:auto 1fr;
  gap:10px;
  align-items:start;
  font-size:var(--step-2);
  line-height:1.7;
  color:rgba(247,248,255,.82);
}

.page-faq .prepare-item strong{
  color:var(--white);
  font-weight:600;
}

.page-faq .prepare-item__no{
  font-family:var(--font-mono);
  font-size:var(--step-1);
  color:var(--cyan);
  border:1px solid rgba(57,230,255,.4);
  border-radius:var(--radius);
  width:20px;
  height:20px;
  display:grid;
  place-items:center;
  margin-top:3px;
}

.page-faq .rail-contact{
  margin-top:20px;
  padding:16px 16px 18px;
}

.page-faq .rail-contact__title{
  font-family:var(--font-mono);
  font-size:var(--step-1);
  letter-spacing:.14em;
  color:#4a3d2a;
}

.page-faq .rail-contact__line{
  margin-top:8px;
  font-family:var(--font-mono);
  font-size:var(--step-2);
  font-weight:600;
  color:var(--ink);
  word-break:break-all;
}

.page-faq .rail-contact__note{
  margin-top:10px;
  font-size:var(--step-1);
  line-height:1.7;
  color:#4a3d2a;
}

/* ---------- 收尾 ---------- */
.page-faq .faq-help{
  margin-top:var(--step-7);
  border-top:1px solid var(--line-strong);
  background:
    radial-gradient(120% 90% at 12% 0%, rgba(123,77,255,.22), rgba(123,77,255,0) 68%),
    linear-gradient(180deg, rgba(17,19,39,.9), rgba(7,7,15,0));
}

.page-faq .faq-help__inner{
  padding:var(--step-6) 0 var(--step-5);
  max-width:46em;
}

.page-faq .faq-help__title{
  font-size:clamp(24px,3.6vw,40px);
  font-weight:800;
}

.page-faq .faq-help__text{
  margin-top:16px;
  font-size:var(--step-3);
  line-height:1.8;
  color:rgba(247,248,255,.82);
}

.page-faq .faq-help__actions{
  margin-top:24px;
  display:flex;
  flex-wrap:wrap;
  gap:12px;
}

.page-faq .faq-help__domain{
  margin-top:22px;
  padding-top:14px;
  border-top:1px solid var(--line);
  font-family:var(--font-mono);
  font-size:var(--step-2);
  letter-spacing:.04em;
  color:var(--cyan);
  word-break:break-all;
}

/* ---------- 断点 ---------- */
@media (min-width:600px){
  .page-faq .signal-grid{
    grid-template-columns:repeat(2,minmax(0,1fr));
  }
}

@media (min-width:700px){
  .page-faq .issue__row{
    grid-template-columns:76px minmax(0,1fr);
    gap:14px;
    align-items:start;
  }

  .page-faq .checklist-wrap{
    grid-template-columns:minmax(0,1fr) minmax(0,.58fr);
    align-items:start;
    gap:var(--step-5);
  }
}

@media (min-width:960px){
  .page-faq .faq-hero__grid{
    grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);
    gap:var(--step-6);
  }

  .page-faq .faq-hero__figure{
    align-self:end;
  }
}

@media (min-width:1020px){
  .page-faq .faq-layout{
    grid-template-columns:minmax(0,1fr) 320px;
    gap:var(--step-7);
  }

  .page-faq .faq-rail{
    position:sticky;
    top:96px;
  }
}

@media (min-width:1080px){
  .page-faq .signal-grid{
    grid-template-columns:repeat(4,minmax(0,1fr));
  }
}

@media (prefers-reduced-motion:reduce){
  .page-faq .signal-card,
  .page-faq .issue,
  .page-faq .checklist__dot,
  .page-faq .checklist__dot::after{
    transition:none;
  }

  .page-faq .signal-card:hover,
  .page-faq .signal-card:focus-visible{
    transform:none;
  }
}
<<<END>>>