.page-faq{
  --faq-gap:clamp(20px,3vw,40px);
  background:var(--paper);
  color:var(--text);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero{
  padding:clamp(16px,2.5vw,32px) 0 clamp(24px,4vw,48px);
  background:var(--mist);
}

.page-faq .faq-frame{
  position:relative;
  border:1px solid var(--line-strong);
  background:var(--paper);
}

.page-faq .faq-frame::before{
  content:"";
  position:absolute;
  top:-1px;
  left:-1px;
  right:-1px;
  height:4px;
  background:repeating-linear-gradient(90deg,var(--ink) 0 1px,transparent 1px 14px);
  opacity:.45;
  pointer-events:none;
}

.page-faq .faq-frame__bar{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:8px 16px;
  padding:12px clamp(14px,2.2vw,26px);
  border-bottom:1px solid var(--line);
}

.page-faq .faq-frame__code{
  font-size:11.5px;
  letter-spacing:.12em;
  color:var(--muted);
}

.page-faq .faq-hero__intro{
  max-width:900px;
  padding:clamp(24px,4vw,52px) clamp(16px,3vw,40px) clamp(24px,3.5vw,44px);
}

.page-faq .faq-hero__intro .display{
  margin:0 0 16px;
  color:var(--ink);
}

.page-faq .faq-hero__intro .lede{
  margin:0;
  color:var(--muted);
}

.page-faq .faq-hero__meta{
  margin:20px 0 0;
  font-size:12px;
  letter-spacing:.08em;
  color:var(--muted);
  padding-top:14px;
  border-top:1px solid var(--line);
}

.page-faq .faq-hero__media{
  margin:0;
  border-top:1px solid var(--line);
}

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

/* ---------- 六个高频问题 ---------- */
.page-faq .faq-top{
  padding:clamp(32px,4.5vw,64px) 0;
  background:var(--paper);
  border-bottom:1px solid var(--line);
}

.page-faq .faq-top__head{
  display:flex;
  flex-wrap:wrap;
  align-items:baseline;
  justify-content:space-between;
  gap:8px 24px;
  margin-bottom:clamp(18px,2.5vw,28px);
}

.page-faq .faq-top__head .h2{
  margin:0;
  color:var(--ink);
}

.page-faq .faq-top__hint{
  margin:0;
  font-size:12px;
  letter-spacing:.1em;
  color:var(--muted);
}

.page-faq .faq-top__grid{
  list-style:none;
  margin:0;
  padding:0;
  display:grid;
  grid-template-columns:1fr;
  gap:1px;
  background:var(--line);
  border:1px solid var(--line);
}

.page-faq .faq-top__link{
  display:grid;
  grid-template-columns:auto 1fr;
  align-content:start;
  gap:6px 12px;
  min-height:104px;
  padding:18px 16px 20px;
  background:var(--paper);
  color:var(--text);
  text-decoration:none;
  border-left:3px solid transparent;
  transition:background var(--ease),color var(--ease),border-color var(--ease);
}

.page-faq .faq-top__link:hover,
.page-faq .faq-top__link:focus-visible{
  background:var(--ink);
  color:var(--on-ink);
  border-left-color:var(--orange);
  outline:none;
}

.page-faq .faq-top__num{
  font-size:12px;
  line-height:1.6;
  letter-spacing:.08em;
  color:var(--orange);
}

.page-faq .faq-top__q{
  font-size:15.5px;
  font-weight:700;
  line-height:1.55;
  letter-spacing:.01em;
}

/* ---------- 主体：分类索引 + 手风琴 ---------- */
.page-faq .faq-body{
  padding:clamp(32px,4.5vw,68px) 0 clamp(40px,5vw,80px);
  background:var(--paper);
}

.page-faq .faq-body__inner{
  display:grid;
  grid-template-columns:1fr;
  gap:var(--faq-gap);
  align-items:start;
}

.page-faq .faq-side__card{
  background:var(--mist);
  border:1px solid var(--line);
}

.page-faq .faq-side__title{
  margin:0;
  padding:12px 16px;
  font-size:11px;
  letter-spacing:.16em;
  color:var(--muted);
  border-bottom:1px solid var(--line);
}

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

.page-faq .faq-side__link{
  display:grid;
  grid-template-columns:auto 1fr auto;
  align-items:center;
  gap:10px;
  padding:12px 16px;
  border-left:3px solid transparent;
  border-bottom:1px solid var(--line);
  color:var(--text);
  text-decoration:none;
  font-size:14.5px;
  font-weight:500;
  transition:background var(--ease),color var(--ease),border-color var(--ease);
}

.page-faq .faq-side__link:hover,
.page-faq .faq-side__link:focus-visible{
  background:var(--paper);
  color:var(--ink);
  border-left-color:var(--orange);
  outline:none;
}

.page-faq .faq-side__num{
  font-size:11px;
  letter-spacing:.08em;
  color:var(--orange);
}

.page-faq .faq-side__count{
  font-size:11px;
  color:var(--muted);
}

.page-faq .faq-side__note{
  margin:0;
  padding:14px 16px;
  font-size:13px;
  line-height:1.75;
  color:var(--muted);
}

.page-faq .faq-side__note a{
  color:var(--ink-600);
  text-decoration:underline;
  text-underline-offset:3px;
}

.page-faq .faq-side__note a:hover{
  color:var(--orange);
}

/* ---------- 分类分组 ---------- */
.page-faq .faq-group{
  scroll-margin-top:24px;
  border-top:1px solid var(--line-strong);
  padding-top:clamp(18px,2.5vw,28px);
}

.page-faq .faq-group:first-child{
  border-top:none;
  padding-top:0;
}

.page-faq .faq-group + .faq-group{
  margin-top:clamp(32px,4vw,56px);
}

.page-faq .faq-group__head{
  display:flex;
  align-items:baseline;
  gap:12px;
}

.page-faq .faq-group__num{
  font-size:12px;
  letter-spacing:.1em;
  color:var(--orange);
}

.page-faq .faq-group__title{
  margin:0;
  font-size:clamp(19px,2.2vw,23px);
  font-weight:800;
  letter-spacing:.03em;
  color:var(--ink);
}

.page-faq .faq-group__lede{
  margin:8px 0 14px;
  font-size:14px;
  line-height:1.7;
  color:var(--muted);
}

/* ---------- 手风琴 ---------- */
.page-faq .faq-item{
  border-bottom:1px solid var(--line);
}

.page-faq .faq-item__q{
  display:grid;
  grid-template-columns:auto 1fr auto;
  align-items:start;
  gap:12px;
  padding:16px 2px;
  cursor:pointer;
  list-style:none;
  transition:color var(--ease);
}

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

.page-faq .faq-item__q:focus-visible{
  outline:2px solid var(--orange);
  outline-offset:2px;
}

.page-faq .faq-item__num{
  font-size:11.5px;
  line-height:2;
  letter-spacing:.08em;
  color:var(--mid);
  transition:color var(--ease);
}

.page-faq .faq-item__text{
  font-size:15.5px;
  font-weight:700;
  line-height:1.6;
  letter-spacing:.01em;
  color:var(--ink);
  transition:color var(--ease);
}

.page-faq .faq-item__q:hover .faq-item__text,
.page-faq .faq-item__q:hover .faq-item__num,
.page-faq .faq-item[open] .faq-item__num{
  color:var(--orange);
}

.page-faq .faq-item__icon{
  position:relative;
  width:14px;
  height:14px;
  margin-top:5px;
  flex:none;
}

.page-faq .faq-item__icon::before,
.page-faq .faq-item__icon::after{
  content:"";
  position:absolute;
  background:var(--ink-600);
  transition:transform var(--ease),opacity var(--ease);
}

.page-faq .faq-item__icon::before{
  left:0;
  top:6px;
  width:14px;
  height:1.5px;
}

.page-faq .faq-item__icon::after{
  left:6px;
  top:0;
  width:1.5px;
  height:14px;
}

.page-faq .faq-item[open] .faq-item__icon::after{
  transform:scaleY(0);
  opacity:0;
}

.page-faq .faq-item__a{
  padding:0 0 20px 0;
  font-size:15px;
  line-height:1.85;
  color:var(--muted);
}

.page-faq .faq-item__a p{
  margin:0 0 10px;
}

.page-faq .faq-item__a p:last-child{
  margin-bottom:0;
}

.page-faq .faq-item__a a{
  color:var(--ink-600);
  text-decoration:underline;
  text-underline-offset:3px;
}

.page-faq .faq-item__a a:hover{
  color:var(--orange);
}

/* ---------- 联系客服前准备 ---------- */
.page-faq .faq-prep{
  background:var(--ink);
  color:var(--on-ink);
  padding:clamp(32px,4.5vw,64px) 0;
  border-top:3px solid var(--orange);
}

.page-faq .faq-prep__inner{
  display:grid;
  grid-template-columns:1fr;
  gap:clamp(24px,3.5vw,48px);
  align-items:center;
}

.page-faq .faq-prep__kicker{
  margin:0 0 12px;
  font-size:11px;
  letter-spacing:.2em;
  text-transform:uppercase;
  color:var(--orange);
}

.page-faq .faq-prep__title{
  margin:0 0 20px;
  color:var(--on-ink);
}

.page-faq .faq-prep__list{
  list-style:none;
  margin:0;
  padding:0;
  border-top:1px solid var(--line-dark);
}

.page-faq .faq-prep__list li{
  display:grid;
  grid-template-columns:auto 1fr;
  gap:12px;
  padding:11px 0;
  border-bottom:1px solid var(--line-dark);
  font-size:15px;
  line-height:1.7;
  color:var(--on-ink);
}

.page-faq .faq-prep__list .mono{
  font-size:11.5px;
  line-height:2.1;
  letter-spacing:.08em;
  color:var(--cyan);
}

.page-faq .faq-prep__contact{
  margin:20px 0 0;
  font-size:14px;
  line-height:1.95;
  color:var(--on-ink-dim);
}

.page-faq .faq-prep__actions{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:16px 24px;
  margin:24px 0 0;
}

.page-faq .faq-prep__back{
  font-size:12px;
  letter-spacing:.1em;
  color:var(--on-ink-dim);
  text-decoration:none;
  border-bottom:1px solid var(--line-dark-strong);
  padding-bottom:2px;
  transition:color var(--ease),border-color var(--ease);
}

.page-faq .faq-prep__back:hover,
.page-faq .faq-prep__back:focus-visible{
  color:var(--orange);
  border-bottom-color:var(--orange);
  outline:none;
}

.page-faq .faq-prep__media{
  margin:0;
  border:1px solid var(--line-dark-strong);
}

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

/* ---------- 响应式 ---------- */
@media (min-width:640px){
  .page-faq .faq-top__grid{
    grid-template-columns:1fr 1fr;
  }
  .page-faq .faq-frame__bar{
    padding-left:clamp(20px,2.6vw,32px);
    padding-right:clamp(20px,2.6vw,32px);
  }
}

@media (min-width:900px){
  .page-faq .faq-body__inner{
    grid-template-columns:256px minmax(0,1fr);
    gap:clamp(32px,4vw,56px);
  }
  .page-faq .faq-side{
    position:sticky;
    top:20px;
  }
  .page-faq .faq-item__text{
    font-size:16px;
  }
  .page-faq .faq-item__a{
    padding-left:34px;
  }
}

@media (min-width:980px){
  .page-faq .faq-top__grid{
    grid-template-columns:repeat(3,1fr);
  }
}

@media (min-width:1000px){
  .page-faq .faq-prep__inner{
    grid-template-columns:minmax(0,1fr) minmax(0,400px);
  }
}

@media (prefers-reduced-motion:reduce){
  .page-faq .faq-top__link,
  .page-faq .faq-side__link,
  .page-faq .faq-item__icon::before,
  .page-faq .faq-item__icon::after,
  .page-faq .faq-item__text,
  .page-faq .faq-item__num,
  .page-faq .faq-prep__back{
    transition:none;
  }
}