.page-faq{
  --faq-gap:clamp(16px,2.2vw,28px);
  --faq-aside-w:236px;
  --faq-radius:24px;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero{
  position:relative;
  overflow:hidden;
  border-bottom:1px solid var(--line-600);
  background:
    linear-gradient(150deg, rgba(47,230,208,.09) 0%, rgba(10,21,38,0) 46%),
    linear-gradient(330deg, rgba(242,193,78,.07) 0%, rgba(10,21,38,0) 40%);
}
.page-faq .faq-hero::before{
  content:"";
  position:absolute;
  top:-38%;
  right:-14%;
  width:min(660px,88vw);
  aspect-ratio:1;
  border-radius:50%;
  background:radial-gradient(circle at 34% 34%, rgba(47,230,208,.16), rgba(47,230,208,0) 66%);
  pointer-events:none;
}
.page-faq .faq-hero::after{
  content:"";
  position:absolute;
  left:0;
  right:0;
  bottom:0;
  height:1px;
  background:linear-gradient(90deg, var(--cyan), rgba(47,230,208,0) 62%);
  opacity:.6;
}
.page-faq .faq-hero-inner{
  position:relative;
  z-index:1;
  padding-top:clamp(24px,4vw,46px);
  padding-bottom:clamp(28px,4.6vw,58px);
}
.page-faq .faq-hero .crumb{
  display:flex;
  align-items:center;
  gap:8px;
  margin-bottom:clamp(20px,3vw,34px);
  font-size:.86rem;
  color:var(--muted);
}
.page-faq .faq-hero .crumb a{
  color:var(--muted);
  text-decoration:none;
  border-bottom:1px solid transparent;
  transition:color .18s var(--ease), border-color .18s var(--ease);
}
.page-faq .faq-hero .crumb a:hover{
  color:var(--cyan);
  border-bottom-color:var(--cyan);
}
.page-faq .faq-hero .crumb [aria-current="page"]{ color:var(--gold); }

.page-faq .faq-hero .kicker{
  margin:0 0 14px;
  font-family:var(--font-mono);
  font-size:.78rem;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--cyan);
}
.page-faq .faq-hero h1{
  margin:0 0 20px;
  max-width:19ch;
  font-size:clamp(2rem,5.2vw,3.5rem);
  font-weight:800;
  line-height:1.16;
  letter-spacing:-.02em;
  color:var(--text);
}
.page-faq .faq-hero .lede{
  max-width:52ch;
  margin:0;
  font-size:clamp(1rem,1.6vw,1.08rem);
  line-height:1.9;
  color:var(--muted);
}

/* 首屏数据带 */
.page-faq .faq-band{
  margin-top:clamp(26px,4vw,44px);
  border:1px solid var(--line-600);
  border-radius:var(--r-lg);
  background:rgba(16,31,53,.72);
  backdrop-filter:blur(2px);
}
.page-faq .faq-band .data-band-inner{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:2px;
  padding:2px;
}
.page-faq .faq-band .data-cell{
  display:flex;
  flex-direction:column;
  gap:6px;
  padding:16px 14px;
  border-radius:var(--r-md);
  background:rgba(10,21,38,.6);
}
.page-faq .faq-band .data-value{
  font-family:var(--font-mono);
  font-size:clamp(1.35rem,3vw,1.7rem);
  font-weight:700;
  line-height:1;
  color:var(--gold);
}
.page-faq .faq-band .data-label{
  font-size:.82rem;
  line-height:1.5;
  color:var(--muted);
}

/* ---------- 主体骨架 ---------- */
.page-faq .faq-shell{
  display:grid;
  grid-template-columns:minmax(0,1fr);
  gap:var(--faq-gap);
  padding-top:clamp(28px,4vw,50px);
  padding-bottom:clamp(48px,7vw,100px);
}

/* ---------- 侧栏分类锚点 ---------- */
.page-faq .faq-aside-title{
  margin:0 0 12px;
  font-family:var(--font-mono);
  font-size:.74rem;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--muted);
}
.page-faq .faq-aside-list{
  list-style:none;
  margin:0;
  padding:0 0 8px;
  display:flex;
  gap:8px;
  overflow-x:auto;
  -webkit-overflow-scrolling:touch;
  scrollbar-width:none;
}
.page-faq .faq-aside-list::-webkit-scrollbar{ display:none; }
.page-faq .faq-anchor{
  display:flex;
  align-items:baseline;
  gap:9px;
  padding:9px 4px;
  white-space:nowrap;
  font-size:.92rem;
  line-height:1.5;
  color:var(--muted);
  text-decoration:none;
  border-bottom:2px solid var(--line-600);
  transition:color .18s var(--ease), border-color .18s var(--ease);
}
.page-faq .faq-anchor .mono{
  font-size:.76rem;
  color:var(--line-600);
  transition:color .18s var(--ease);
}
.page-faq .faq-anchor:hover,
.page-faq .faq-anchor:focus-visible{
  color:var(--text);
  border-bottom-color:var(--cyan);
}
.page-faq .faq-anchor:hover .mono,
.page-faq .faq-anchor:focus-visible .mono{ color:var(--cyan); }

/* ---------- 章节 ---------- */
.page-faq .faq-group{
  scroll-margin-top:88px;
  padding-top:clamp(26px,4vw,48px);
  border-top:1px solid var(--line-600);
}
.page-faq .faq-group:first-child{ border-top:0; padding-top:0; }

.page-faq .section-head{
  margin-bottom:clamp(18px,2.6vw,28px);
}
.page-faq .section-num{
  display:inline-block;
  margin-bottom:8px;
  font-size:.82rem;
  font-weight:700;
  letter-spacing:.14em;
  color:var(--cyan);
}
.page-faq .faq-group[data-accent="gold"] .section-num{ color:var(--gold); }
.page-faq .faq-group[data-accent="alert"] .section-num{ color:var(--alert); }

.page-faq .section-title{
  margin:0 0 10px;
  font-size:clamp(1.45rem,3.4vw,2rem);
  font-weight:800;
  line-height:1.25;
  letter-spacing:-.01em;
  color:var(--text);
}
.page-faq .section-sub{
  margin:0;
  max-width:46ch;
  font-size:.98rem;
  line-height:1.85;
  color:var(--muted);
}

/* ---------- 配图 ---------- */
.page-faq .faq-figure{
  margin:0 0 clamp(18px,2.6vw,28px);
  border:1px solid var(--line-600);
  border-radius:var(--faq-radius);
  background:linear-gradient(160deg, rgba(23,41,63,.9), rgba(10,21,38,.9));
  overflow:hidden;
}
.page-faq .faq-figure img{
  display:block;
  width:100%;
  height:auto;
  max-width:100%;
  object-fit:cover;
}
.page-faq .faq-figure .media-caption{
  margin:0;
  padding:12px 18px;
  border-top:1px solid var(--line-600);
  font-size:.84rem;
  line-height:1.6;
  color:var(--muted);
}

/* ---------- 折叠问答 ---------- */
.page-faq .faq-list{
  display:grid;
  gap:10px;
}
.page-faq .faq-item{
  position:relative;
  border:1px solid var(--line-600);
  border-radius:var(--r-lg);
  background:var(--ink-800);
  overflow:hidden;
  transition:border-color .2s var(--ease), box-shadow .2s var(--ease), background .2s var(--ease);
}
.page-faq .faq-item::before{
  content:"";
  position:absolute;
  left:0;
  top:0;
  bottom:0;
  width:3px;
  background:var(--cyan);
  transform:scaleY(0);
  transform-origin:top;
  transition:transform .24s var(--ease);
}
.page-faq .faq-item:hover{ border-color:rgba(47,230,208,.38); }
.page-faq .faq-item[open]{
  border-color:rgba(47,230,208,.46);
  background:var(--ink-850);
  box-shadow:var(--shadow-card);
}
.page-faq .faq-item[open]::before{ transform:scaleY(1); }
.page-faq .faq-group[data-accent="gold"] .faq-item::before{ background:var(--gold); }
.page-faq .faq-group[data-accent="gold"] .faq-item:hover{ border-color:rgba(242,193,78,.4); }
.page-faq .faq-group[data-accent="gold"] .faq-item[open]{ border-color:rgba(242,193,78,.5); }
.page-faq .faq-group[data-accent="alert"] .faq-item::before{ background:var(--alert); }
.page-faq .faq-group[data-accent="alert"] .faq-item:hover{ border-color:rgba(255,107,74,.4); }
.page-faq .faq-group[data-accent="alert"] .faq-item[open]{ border-color:rgba(255,107,74,.5); }

.page-faq .faq-q{
  display:flex;
  align-items:flex-start;
  gap:12px;
  padding:17px 20px;
  cursor:pointer;
  list-style:none;
  font-size:1rem;
  font-weight:700;
  line-height:1.55;
  color:var(--text);
  transition:color .18s var(--ease);
}
.page-faq .faq-q::-webkit-details-marker{ display:none; }
.page-faq .faq-q::after{
  content:"+";
  margin-left:auto;
  flex:0 0 auto;
  font-family:var(--font-mono);
  font-size:1.15rem;
  line-height:1.3;
  color:var(--cyan);
  transition:transform .2s var(--ease), color .2s var(--ease);
}
.page-faq .faq-group[data-accent="gold"] .faq-q::after{ color:var(--gold); }
.page-faq .faq-group[data-accent="alert"] .faq-q::after{ color:var(--alert); }
.page-faq .faq-item[open] .faq-q::after{
  content:"\2212";
  transform:rotate(180deg);
}
.page-faq .faq-q:hover{ color:var(--cyan); }
.page-faq .faq-group[data-accent="gold"] .faq-q:hover{ color:var(--gold); }
.page-faq .faq-group[data-accent="alert"] .faq-q:hover{ color:var(--alert); }
.page-faq .faq-q:focus-visible{
  outline:none;
  box-shadow:var(--glow);
}
.page-faq .faq-q-num{
  flex:0 0 auto;
  padding-top:4px;
  font-size:.76rem;
  font-weight:700;
  color:var(--muted);
}
.page-faq .faq-q-text{ flex:1 1 auto; min-width:0; }

.page-faq .faq-a{
  padding:0 20px 20px;
  border-top:1px solid var(--line-600);
  font-size:.97rem;
  line-height:1.88;
  color:var(--muted);
}
.page-faq .faq-a p{
  margin:16px 0 0;
}
.page-faq .faq-a a{
  color:var(--cyan);
  text-decoration:none;
  border-bottom:1px solid rgba(47,230,208,.4);
  transition:border-color .18s var(--ease);
}
.page-faq .faq-a a:hover{ border-bottom-color:var(--cyan); }

/* 关键结论块 */
.page-faq .faq-verdict{
  margin-top:16px !important;
  padding:13px 16px;
  border-radius:var(--r-md);
  border-left:3px solid var(--cyan);
  background:rgba(47,230,208,.08);
  color:var(--text);
  font-weight:600;
  line-height:1.75;
}
.page-faq .faq-group[data-accent="gold"] .faq-verdict{
  border-left-color:var(--gold);
  background:rgba(242,193,78,.08);
}
.page-faq .faq-group[data-accent="alert"] .faq-verdict{
  border-left-color:var(--alert);
  background:rgba(255,107,74,.08);
}

/* 横向提示条 */
.page-faq .faq-tip{
  display:flex;
  gap:12px;
  align-items:flex-start;
  margin-top:18px;
  padding:12px 16px;
  border-radius:var(--r-md);
  border-top:1px solid var(--line-600);
  border-bottom:1px solid var(--line-600);
  background:var(--ink-700);
  color:var(--text);
  font-size:.92rem;
  line-height:1.75;
}
.page-faq .faq-tip-label{
  flex:0 0 auto;
  padding-top:2px;
  font-size:.72rem;
  letter-spacing:.12em;
  color:var(--gold);
}
.page-faq .faq-tip a{
  color:var(--cyan);
  text-decoration:none;
  border-bottom:1px solid rgba(47,230,208,.4);
}

/* 版本分支对照 */
.page-faq .faq-branches{
  list-style:none;
  margin:16px 0 0;
  padding:0;
  display:grid;
  gap:2px;
  border-radius:var(--r-md);
  overflow:hidden;
  background:var(--line-600);
}
.page-faq .faq-branches li{
  display:flex;
  flex-wrap:wrap;
  gap:6px 14px;
  align-items:baseline;
  padding:11px 15px;
  background:var(--ink-700);
  font-size:.94rem;
  line-height:1.7;
  color:var(--muted);
}
.page-faq .faq-branches .mono{
  flex:0 0 auto;
  min-width:5.6em;
  font-size:.84rem;
  font-weight:700;
  color:var(--gold);
}

/* 等宽编号步骤 */
.page-faq .faq-steps{
  list-style:none;
  margin:16px 0 0;
  padding:0;
  display:grid;
  gap:10px;
}
.page-faq .faq-steps li{
  display:flex;
  gap:12px;
  align-items:flex-start;
}
.page-faq .faq-steps .mono{
  flex:0 0 auto;
  padding-top:3px;
  font-size:.8rem;
  font-weight:700;
  color:var(--cyan);
}
.page-faq .faq-group[data-accent="gold"] .faq-steps .mono{ color:var(--gold); }
.page-faq .faq-group[data-accent="alert"] .faq-steps .mono{ color:var(--alert); }

/* 联系渠道 */
.page-faq .faq-channels{
  display:grid;
  gap:2px;
  margin-top:16px;
  border-radius:var(--r-md);
  overflow:hidden;
  background:var(--line-600);
}
.page-faq .faq-channel{
  display:flex;
  flex-wrap:wrap;
  gap:4px 16px;
  align-items:baseline;
  margin:0 !important;
  padding:12px 16px;
  background:var(--ink-700);
  font-size:.96rem;
  color:var(--text);
}
.page-faq .faq-channel-key{
  flex:0 0 auto;
  min-width:5.4em;
  font-size:.78rem;
  letter-spacing:.06em;
  color:var(--muted);
}
.page-faq .faq-copyable{
  user-select:all;
  font-family:var(--font-mono);
  font-size:.95rem;
  color:var(--gold);
  word-break:break-all;
}

/* 结尾行动区 */
.page-faq .faq-cta{
  display:flex;
  flex-wrap:wrap;
  gap:20px;
  align-items:center;
  justify-content:space-between;
  margin-top:clamp(24px,3.6vw,38px);
  padding:clamp(20px,3vw,30px);
  border:1px solid var(--line-600);
  border-radius:var(--faq-radius);
  background:
    linear-gradient(140deg, rgba(47,230,208,.1), rgba(16,31,53,.9) 58%),
    var(--ink-800);
}
.page-faq .faq-cta-text{ flex:1 1 260px; min-width:0; }
.page-faq .faq-cta-title{
  margin:0 0 8px;
  font-size:clamp(1.15rem,2.4vw,1.45rem);
  font-weight:800;
  line-height:1.3;
  color:var(--text);
}
.page-faq .faq-cta-text p{
  margin:0;
  font-size:.95rem;
  line-height:1.8;
  color:var(--muted);
}
.page-faq .faq-cta-actions{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
}

/* ---------- 桌面布局 ---------- */
@media (min-width:720px){
  .page-faq .faq-band .data-band-inner{
    grid-template-columns:repeat(4,minmax(0,1fr));
  }
}

@media (min-width:1000px){
  .page-faq .faq-shell{
    grid-template-columns:var(--faq-aside-w) minmax(0,1fr);
    gap:clamp(28px,3.6vw,56px);
    align-items:start;
  }
  .page-faq .faq-aside{
    position:sticky;
    top:28px;
    padding-right:6px;
  }
  .page-faq .faq-aside-list{
    flex-direction:column;
    gap:2px;
    overflow:visible;
    padding-bottom:0;
  }
  .page-faq .faq-anchor{
    white-space:normal;
    padding:10px 12px;
    border-bottom:0;
    border-left:2px solid var(--line-600);
    border-radius:0;
  }
  .page-faq .faq-anchor:hover,
  .page-faq .faq-anchor:focus-visible{
    background:rgba(47,230,208,.06);
    border-left-color:var(--cyan);
  }
  .page-faq .faq-group{ scroll-margin-top:36px; }
  .page-faq .faq-q{ padding:19px 24px; }
  .page-faq .faq-a{ padding:0 24px 24px; }
}

@media (min-width:1200px){
  .page-faq .faq-hero h1{ max-width:17ch; }
}

@media (prefers-reduced-motion:reduce){
  .page-faq .faq-item,
  .page-faq .faq-anchor,
  .page-faq .faq-q,
  .page-faq .faq-q::after,
  .page-faq .faq-item::before{
    transition:none !important;
  }
}
</style>