.page-faq{
  --faq-rail:236px;
  position:relative;
  padding-bottom:clamp(56px,9vw,110px);
  background:
    radial-gradient(1100px 620px at 88% -6%,rgba(108,76,241,.20),transparent 62%),
    radial-gradient(760px 520px at -8% 42%,rgba(55,214,208,.10),transparent 60%);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero{
  position:relative;
  overflow:hidden;
  padding:calc(var(--gc-header-h) + 34px) 0 clamp(34px,6vw,60px);
}
.page-faq .faq-hero::before{
  content:"";
  position:absolute;
  left:-24%;
  bottom:-60%;
  width:min(760px,86vw);
  aspect-ratio:1;
  border:1px solid rgba(108,76,241,.34);
  border-radius:50%;
  pointer-events:none;
}
.page-faq .faq-hero__inner{
  position:relative;
  display:grid;
  gap:clamp(26px,4vw,46px);
}
.page-faq .faq-crumbs{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  margin-bottom:22px;
}
.page-faq .faq-crumbs .gc-crumbs__item a{
  color:var(--gc-dust);
  text-decoration:none;
}
.page-faq .faq-crumbs .gc-crumbs__item a:hover{
  color:var(--gc-cyan);
}
.page-faq .faq-crumbs__sep{
  color:var(--gc-dust-dim);
}
.page-faq .faq-hero__kicker{
  margin:0 0 14px;
  font-size:12px;
  letter-spacing:.22em;
  color:var(--gc-orange);
}
.page-faq .faq-hero__title{
  margin:0;
  font-family:var(--gc-font-display);
  font-weight:800;
  font-size:clamp(27px,5vw,50px);
  line-height:1.24;
  letter-spacing:.02em;
  color:var(--gc-near);
}
.page-faq .faq-hero__title em{
  font-style:normal;
  color:var(--gc-cyan);
  box-shadow:inset 0 -9px 0 rgba(55,214,208,.16);
}
.page-faq .faq-hero__lead{
  margin:20px 0 0;
  max-width:34em;
  font-size:clamp(15px,1.6vw,17px);
  line-height:1.85;
  color:var(--gc-dust);
}
.page-faq .faq-hero__actions{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  margin-top:26px;
}
.page-faq .faq-stats{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:14px 18px;
  margin:30px 0 0;
  padding:0;
  list-style:none;
}
.page-faq .faq-stat{
  border-top:2px solid var(--gc-line);
  padding-top:10px;
}
.page-faq .faq-stat__k{
  display:block;
  font-size:18px;
  letter-spacing:.02em;
}
.page-faq .faq-stat__v{
  display:block;
  margin-top:4px;
  font-size:12.5px;
  letter-spacing:.04em;
  color:var(--gc-dust);
}
.page-faq .faq-hero__media{
  margin:0;
  position:relative;
  border:2px solid var(--gc-line);
  background:var(--gc-ink-2);
  box-shadow:10px 10px 0 rgba(8,11,26,.7);
}
.page-faq .faq-hero__media::after{
  content:"";
  position:absolute;
  right:-14%;
  top:-16%;
  width:56%;
  aspect-ratio:1;
  border:1px solid rgba(108,76,241,.5);
  border-radius:50%;
  pointer-events:none;
}
.page-faq .faq-hero__media .gc-media__cap{
  padding:10px 14px;
  font-size:12.5px;
  letter-spacing:.03em;
  color:var(--gc-dust);
  border-top:1px solid var(--gc-line);
}

/* ---------- 主体骨架 ---------- */
.page-faq .faq-body{
  display:grid;
  gap:10px;
  margin-top:clamp(18px,4vw,34px);
}

/* ---------- 主题索引 ---------- */
.page-faq .faq-rail__label{
  margin:0 0 10px;
  font-family:var(--gc-font-mono);
  font-size:11.5px;
  letter-spacing:.2em;
  color:var(--gc-dust-dim);
}
.page-faq .faq-rail__nav{
  display:flex;
  gap:8px;
  overflow-x:auto;
  padding-bottom:8px;
  border-bottom:1px solid var(--gc-line);
}
.page-faq .gc-index-band__link{
  flex:none;
  white-space:nowrap;
  padding:8px 14px;
  border:1px solid var(--gc-line);
  border-radius:999px;
  font-size:13.5px;
  color:var(--gc-dust);
  text-decoration:none;
  transition:color .2s var(--gc-ease),border-color .2s var(--gc-ease),background-color .2s var(--gc-ease);
}
.page-faq .gc-index-band__link:hover{
  color:var(--gc-near);
  border-color:var(--gc-cyan);
}
.page-faq .gc-index-band__link.is-active{
  color:var(--gc-ink);
  background:var(--gc-cyan);
  border-color:var(--gc-cyan);
}

/* ---------- 章节 ---------- */
.page-faq .faq-block{
  scroll-margin-top:calc(var(--gc-header-h) + 26px);
  padding-top:clamp(30px,5vw,52px);
}
.page-faq .faq-block__head{
  display:flex;
  align-items:baseline;
  gap:14px;
  padding-bottom:12px;
  margin-bottom:18px;
  border-bottom:2px solid var(--gc-line);
}
.page-faq .faq-block__no{
  font-size:13px;
  letter-spacing:.1em;
  color:var(--gc-orange);
}
.page-faq .faq-block__title{
  margin:0;
  font-family:var(--gc-font-display);
  font-size:clamp(20px,3.2vw,28px);
  font-weight:800;
  letter-spacing:.02em;
  color:var(--gc-near);
}
.page-faq .faq-block__hint{
  margin:-6px 0 18px;
  font-size:14px;
  line-height:1.7;
  color:var(--gc-dust);
}

/* ---------- 问答条目 ---------- */
.page-faq .faq-item{
  position:relative;
  margin-bottom:10px;
  border:2px solid var(--gc-line);
  background:linear-gradient(180deg,rgba(16,24,48,.92),rgba(8,11,26,.92));
  transition:border-color .25s var(--gc-ease),box-shadow .25s var(--gc-ease);
}
.page-faq .faq-item[open]{
  border-color:rgba(55,214,208,.5);
  box-shadow:0 0 0 1px rgba(55,214,208,.14);
}
.page-faq .faq-item__q{
  position:relative;
  display:grid;
  grid-template-columns:auto minmax(0,1fr) auto;
  align-items:center;
  gap:12px;
  padding:16px 16px 16px 16px;
  cursor:pointer;
  list-style:none;
}
.page-faq .faq-item__q::-webkit-details-marker{
  display:none;
}
.page-faq .faq-item__q::marker{
  content:"";
}
.page-faq .faq-item__q::before{
  content:"";
  position:absolute;
  left:0;
  top:0;
  bottom:0;
  width:3px;
  background:var(--gc-line);
  transition:background .25s var(--gc-ease);
}
.page-faq .faq-item[open] .faq-item__q::before{
  background:var(--gc-cyan);
}
.page-faq .faq-item__no{
  font-size:12.5px;
  letter-spacing:.06em;
}
.page-faq .faq-item__text{
  margin:0;
  font-family:var(--gc-font-body);
  font-size:clamp(15px,1.7vw,16.5px);
  font-weight:600;
  line-height:1.6;
  color:var(--gc-near);
}
.page-faq .faq-item__mark{
  position:relative;
  width:22px;
  height:22px;
  flex:none;
  border:1px solid var(--gc-line);
}
.page-faq .faq-item__mark::before,
.page-faq .faq-item__mark::after{
  content:"";
  position:absolute;
  left:50%;
  top:50%;
  background:var(--gc-cyan);
  transform:translate(-50%,-50%);
  transition:transform .25s var(--gc-ease),opacity .25s var(--gc-ease);
}
.page-faq .faq-item__mark::before{
  width:10px;
  height:1.5px;
}
.page-faq .faq-item__mark::after{
  width:1.5px;
  height:10px;
}
.page-faq .faq-item[open] .faq-item__mark::after{
  transform:translate(-50%,-50%) scaleY(0);
  opacity:0;
}
.page-faq .faq-item__a{
  padding:0 18px 22px;
  animation:faq-open .3s var(--gc-ease);
}
.page-faq .faq-item__a p{
  margin:0 0 12px;
  font-size:15px;
  line-height:1.85;
  color:var(--gc-dust);
}
.page-faq .faq-item__a p:last-child{
  margin-bottom:0;
}
.page-faq .faq-item__a strong{
  color:var(--gc-near);
  font-weight:600;
}
.page-faq .faq-item__a a{
  color:var(--gc-cyan);
  text-decoration:underline;
  text-underline-offset:3px;
}
.page-faq .faq-item__a a:hover{
  color:var(--gc-near);
}
.page-faq .faq-code{
  font-family:var(--gc-font-mono);
  font-size:13.5px;
  color:var(--gc-cyan);
  background:rgba(55,214,208,.10);
  border:1px solid rgba(55,214,208,.28);
  border-radius:3px;
  padding:1px 6px;
  word-break:break-all;
}
@keyframes faq-open{
  from{opacity:0;transform:translateY(-6px);}
  to{opacity:1;transform:none;}
}

/* ---------- 配图 ---------- */
.page-faq .gc-media{
  background:var(--gc-ink-2);
}
.page-faq .gc-media__img{
  display:block;
  width:100%;
  max-width:100%;
  height:auto;
  object-fit:cover;
}
.page-faq .faq-figure{
  margin:22px 0 0;
  max-width:620px;
  border:2px solid var(--gc-line);
}
.page-faq .faq-figure .gc-media__cap{
  padding:10px 14px;
  font-size:12.5px;
  color:var(--gc-dust);
  border-top:1px solid var(--gc-line);
}

/* ---------- 人工协助面板 ---------- */
.page-faq .faq-help{
  padding:clamp(22px,3.4vw,34px);
  color:var(--gc-paper-ink);
  border-left:6px solid var(--gc-orange);
}
.page-faq .faq-help__kicker{
  margin:0 0 12px;
  font-size:12px;
  letter-spacing:.16em;
  color:#8a6a3c;
}
.page-faq .faq-help__title{
  margin:0 0 14px;
  font-family:var(--gc-font-display);
  font-size:clamp(19px,2.6vw,24px);
  font-weight:800;
  letter-spacing:.02em;
  color:var(--gc-paper-ink);
}
.page-faq .faq-help__text{
  margin:0 0 12px;
  max-width:60em;
  font-size:15px;
  line-height:1.85;
  color:#4a3f2c;
}
.page-faq .faq-help__text strong{
  font-family:var(--gc-font-mono);
  color:#1f1a10;
  word-break:break-all;
}
.page-faq .faq-help__actions{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  margin-top:20px;
}
.page-faq .faq-help .gc-btn--ghost{
  color:var(--gc-paper-ink);
  border-color:rgba(43,36,22,.45);
}
.page-faq .faq-help .gc-btn--ghost:hover{
  background:rgba(43,36,22,.08);
  color:var(--gc-paper-ink);
}

/* ---------- 中等屏 ---------- */
@media (min-width:640px){
  .page-faq .faq-stats{
    grid-template-columns:repeat(4,minmax(0,1fr));
  }
  .page-faq .faq-item__q{
    padding:18px 20px 18px 20px;
  }
  .page-faq .faq-item__a{
    padding:0 22px 24px 22px;
  }
}

/* ---------- 桌面：星座式侧栏 + 问答流 ---------- */
@media (min-width:960px){
  .page-faq .faq-hero__inner{
    grid-template-columns:minmax(0,7fr) minmax(0,5fr);
    align-items:center;
  }
  .page-faq .faq-rail__nav{
    flex-direction:column;
    gap:0;
    overflow:visible;
    padding-bottom:0;
    border-bottom:0;
    border-left:1px solid var(--gc-line);
  }
  .page-faq .gc-index-band__link{
    border:0;
    border-radius:0;
    padding:11px 12px 11px 20px;
    font-size:14px;
    position:relative;
  }
  .page-faq .gc-index-band__link::before{
    content:"";
    position:absolute;
    left:-4.5px;
    top:50%;
    width:8px;
    height:8px;
    border-radius:50%;
    background:var(--gc-line);
    transform:translateY(-50%);
    transition:background .2s var(--gc-ease),box-shadow .2s var(--gc-ease);
  }
  .page-faq .gc-index-band__link.is-active{
    background:linear-gradient(90deg,rgba(55,214,208,.16),transparent 78%);
    color:var(--gc-near);
  }
  .page-faq .gc-index-band__link.is-active::before{
    background:var(--gc-cyan);
    box-shadow:0 0 0 4px rgba(55,214,208,.16);
  }
  .page-faq .faq-body{
    grid-template-columns:var(--faq-rail) minmax(0,1fr);
    gap:clamp(30px,4.2vw,62px);
    align-items:start;
    margin-top:clamp(30px,5vw,56px);
  }
  .page-faq .faq-rail{
    position:sticky;
    top:calc(var(--gc-header-h) + 22px);
  }
  .page-faq .faq-block:first-child{
    padding-top:0;
  }
}

@media (prefers-reduced-motion:reduce){
  .page-faq .faq-item__a{
    animation:none;
  }
  .page-faq .faq-item__mark::before,
  .page-faq .faq-item__mark::after{
    transition:none;
  }
}
</final>