.page-faq{ background: var(--color-bg); }

.page-faq .container{
  width:min(1200px, 100% - 2rem);
  margin-inline:auto;
}

.page-faq section[id]{
  scroll-margin-top:90px;
}

/* ===== Hero 首屏分色区 ===== */
.page-faq .faq-hero{
  position:relative;
  overflow:hidden;
  background:var(--color-secondary);
  color:#fff;
  border-bottom:6px solid var(--color-primary);
}

.page-faq .faq-hero::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(135deg, transparent 70%, rgba(255,215,0,.16) 100%);
  pointer-events:none;
}

.page-faq .faq-hero__inner{
  position:relative;
  z-index:1;
  display:grid;
  gap:1.1rem;
  padding:2.4rem 0 2.75rem;
}

.page-faq .faq-hero__crumb{
  display:flex;
  flex-wrap:wrap;
  gap:.4rem;
  font-size:.85rem;
  color:rgba(255,255,255,.8);
}

.page-faq .faq-hero__crumb a{
  color:#fff;
  text-decoration:none;
  font-weight:600;
}

.page-faq .faq-hero__crumb a:hover{
  color:var(--color-accent);
  text-decoration:underline;
}

.page-faq .faq-hero__title{
  margin:0;
  font-family:var(--font-heading);
  font-size:clamp(1.75rem, 5vw, 3rem);
  line-height:1.25;
  max-width:18em;
}

.page-faq .faq-hero__lead{
  margin:0;
  max-width:34em;
  line-height:1.7;
  color:rgba(255,255,255,.9);
}

.page-faq .faq-hero__tip{
  margin:0;
  width:fit-content;
  font-family:var(--font-number);
  font-size:.8rem;
  color:var(--color-accent);
  border:1px dashed rgba(255,255,255,.45);
  padding:.45rem .7rem;
}

.page-faq .faq-hero__stats{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:.75rem;
  margin-top:.4rem;
}

.page-faq .faq-hero__stat{
  display:flex;
  flex-direction:column;
  gap:.15rem;
  border:1px solid rgba(255,255,255,.25);
  background:rgba(255,255,255,.08);
  padding:.7rem .85rem;
}

.page-faq .faq-hero__stat strong{
  font-family:var(--font-number);
  font-size:1.55rem;
  line-height:1.1;
  color:var(--color-accent);
}

.page-faq .faq-hero__stat span{
  font-size:.78rem;
  color:rgba(255,255,255,.85);
}

.page-faq .faq-hero__big{
  position:absolute;
  right:-.5rem;
  top:.4rem;
  z-index:0;
  writing-mode:vertical-rl;
  font-family:var(--font-number);
  font-size:clamp(4rem, 12vw, 8rem);
  font-weight:700;
  line-height:1;
  color:#fff;
  opacity:.1;
  pointer-events:none;
}

/* ===== 目录跳转条 ===== */
.page-faq .faq-jump{
  display:flex;
  gap:.6rem;
  margin-top:-1.2rem;
  margin-bottom:2.6rem;
  position:relative;
  z-index:2;
  overflow-x:auto;
  padding-bottom:.35rem;
  scrollbar-width:none;
}

.page-faq .faq-jump::-webkit-scrollbar{
  display:none;
}

.page-faq .faq-jump__item{
  display:inline-flex;
  align-items:center;
  gap:.5rem;
  white-space:nowrap;
  border:2px solid var(--color-text);
  background:var(--color-surface);
  padding:.55rem .85rem;
  font-family:var(--font-body);
  font-size:.9rem;
  font-weight:700;
  color:var(--color-text);
  text-decoration:none;
  box-shadow:4px 4px 0 rgba(17,24,39,.18);
  transition:transform .12s ease, box-shadow .12s ease;
}

.page-faq .faq-jump__item:hover{
  transform:translate(-2px,-2px);
  box-shadow:6px 6px 0 rgba(17,24,39,.24);
}

.page-faq .faq-jump__index{
  font-family:var(--font-number);
  font-size:.7rem;
  color:var(--color-primary);
  font-weight:700;
}

/* ===== 分类区块 ===== */
.page-faq .page-faq__section{
  padding:2rem 0 2.75rem;
  border-bottom:1px dashed var(--color-border);
}

.page-faq .faq-section{
  position:relative;
  display:grid;
  gap:1.75rem;
}

.page-faq .faq-section__intro{
  display:grid;
  justify-items:start;
  gap:.8rem;
  padding-top:.25rem;
}

.page-faq .faq-section__index{
  position:absolute;
  top:.1rem;
  right:0;
  z-index:0;
  font-family:var(--font-number);
  font-size:clamp(3rem, 8vw, 5.5rem);
  font-weight:700;
  line-height:.8;
  color:var(--color-text);
  opacity:.06;
  pointer-events:none;
}

.page-faq .faq-section__icon{
  display:grid;
  place-items:center;
  width:52px;
  height:52px;
  border:2px solid var(--color-text);
  box-shadow:4px 4px 0 rgba(17,24,39,.18);
}

.page-faq .faq-section__icon svg{
  width:27px;
  height:27px;
}

.page-faq .faq-section__intro h2{
  margin:0;
  font-family:var(--font-heading);
  font-size:1.6rem;
  letter-spacing:.02em;
}

.page-faq .faq-section__intro p{
  margin:0;
  max-width:26rem;
  line-height:1.65;
  color:var(--color-muted);
}

.page-faq .faq-section__meta{
  display:inline-flex;
  align-items:baseline;
  gap:.45rem;
  font-family:var(--font-number);
  font-size:.8rem;
  color:var(--color-muted);
}

.page-faq .faq-section__meta strong{
  font-size:1.35rem;
  color:var(--color-text);
}

.page-faq .faq-section__main{
  min-width:0;
  display:grid;
  gap:1rem;
}

/* ===== 分类图标配色 ===== */
.page-faq .faq-section--download .faq-section__icon{
  background:var(--color-primary);
  color:#fff;
}

.page-faq .faq-section--update .faq-section__icon{
  background:var(--color-accent);
  color:#111827;
}

.page-faq .faq-section--legacy .faq-section__icon{
  background:var(--color-secondary);
  color:#fff;
}

.page-faq .faq-section--compat .faq-section__icon{
  background:var(--color-accent);
  color:#111827;
}

.page-faq .faq-section--account .faq-section__icon{
  background:var(--color-primary);
  color:#fff;
}

/* ===== 手风琴条目 ===== */
.page-faq .faq-item{
  border:2px solid var(--color-text);
  background:var(--color-surface);
  box-shadow:4px 5px 0 rgba(17,24,39,.12);
  overflow:hidden;
}

.page-faq .faq-item__q{
  list-style:none;
  display:flex;
  align-items:center;
  gap:.7rem;
  padding:.95rem 1rem;
  cursor:pointer;
  font-weight:700;
  font-size:1rem;
  color:var(--color-text);
  transition:background .15s ease;
}

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

.page-faq .faq-item__q:hover{
  background:rgba(255,75,43,.06);
}

.page-faq .faq-item__q:focus-visible{
  outline:3px solid var(--color-accent);
  outline-offset:-3px;
}

.page-faq .faq-item__num{
  flex:0 0 auto;
  font-family:var(--font-number);
  font-size:.7rem;
  line-height:1.1;
  background:var(--color-primary);
  color:#fff;
  padding:.2rem .4rem;
}

.page-faq .faq-item__title{
  flex:1 1 auto;
}

.page-faq .faq-item__q::after{
  content:"+";
  flex:0 0 auto;
  font-family:var(--font-number);
  font-size:1.25rem;
  line-height:1;
  color:var(--color-primary);
}

.page-faq .faq-item[open] .faq-item__q::after{
  content:"–";
  color:var(--color-secondary);
}

.page-faq .faq-item__a{
  border:2px dashed var(--color-border);
  background:var(--color-bg);
  margin:0 1rem 1rem;
  padding:.9rem 1rem 1.05rem;
  font-size:.95rem;
  line-height:1.75;
  color:var(--color-text);
}

.page-faq .faq-item__a p{
  margin:0 0 .7rem;
}

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

.page-faq .faq-item__a a{
  color:var(--color-primary-dark);
  font-weight:600;
  text-decoration-thickness:2px;
  text-underline-offset:2px;
}

/* ===== 配图媒体 ===== */
.page-faq .faq-media{
  margin:0;
  border:2px solid var(--color-text);
  background:var(--color-surface);
  box-shadow:5px 6px 0 rgba(30,58,138,.28);
}

.page-faq .faq-media img{
  display:block;
  width:100%;
  height:auto;
  aspect-ratio:3 / 2;
  object-fit:cover;
  background:var(--color-bg);
}

.page-faq .faq-media__cap{
  display:flex;
  justify-content:space-between;
  flex-wrap:wrap;
  gap:.6rem;
  padding:.55rem .8rem;
  border-top:2px dashed var(--color-border);
  font-family:var(--font-number);
  font-size:.75rem;
  color:var(--color-muted);
}

/* ===== 底部支持区 ===== */
.page-faq .faq-support{
  padding:2.7rem 0 3.2rem;
}

.page-faq .faq-support h2{
  margin:0 0 .75rem;
  font-family:var(--font-heading);
  font-size:1.7rem;
}

.page-faq .faq-support__lead{
  margin:0 0 1.4rem;
  color:var(--color-muted);
}

.page-faq .faq-support__grid{
  display:grid;
  gap:1.25rem;
}

.page-faq .faq-support__card{
  display:grid;
  justify-items:start;
  gap:.75rem;
  padding:1.25rem;
  border:2px solid var(--color-text);
  background:var(--color-surface);
  box-shadow:5px 6px 0 rgba(17,24,39,.15);
}

.page-faq .faq-support__card h3{
  margin:0;
  font-family:var(--font-heading);
  font-size:1.1rem;
}

.page-faq .faq-support__card p{
  margin:0;
  font-size:.95rem;
  line-height:1.7;
  color:var(--color-muted);
}

.page-faq .faq-support__card a.btn{
  text-decoration:none;
}

/* ===== 桌面端布局 ===== */
@media (min-width: 860px){
  .page-faq .faq-hero__inner{
    padding:3.4rem 0 3.6rem;
  }

  .page-faq .faq-hero__stats{
    grid-template-columns:repeat(4,1fr);
  }

  .page-faq .faq-jump{
    margin-bottom:3.4rem;
  }

  .page-faq .faq-section{
    grid-template-columns:250px 1fr;
    gap:2rem;
    align-items:start;
  }

  .page-faq .faq-section__intro{
    position:sticky;
    top:90px;
  }

  .page-faq .faq-section__index{
    right:-.5rem;
    top:-.7rem;
    opacity:.07;
  }

  .page-faq .faq-support__grid{
    grid-template-columns:repeat(2,1fr);
  }
}