/* ---------- 主题变量 ---------- */
.bao-faq-scope{
  --bao-bg:#ffffff;
  --bao-ink:#242220;
  --bao-ink-soft:#5f5a54;
  --bao-muted:#9a948c;
  --bao-gold:#b8935a;
  --bao-gold-soft:#d9c4a3;
  --bao-line:#ece7df;
  --bao-silver:#c3c0bb;
  --bao-font:"Open Sans","PingFang SC","Microsoft YaHei","Noto Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",Arial,sans-serif;
}

/* ---------- 页面底：纯白，无大面积色块 ---------- */
.bao-faq-scope{
  margin:0;
  padding:0;
  background:var(--bao-bg);
  color:var(--bao-ink);
  font-family:var(--bao-font);
  font-weight:400;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}

/* ---------- 容器 ---------- */
.bao-faq{
  max-width:1200px;
  margin:0 auto;
  padding:88px 32px 80px;
  box-sizing:border-box;
  background:transparent;
}

/* ---------- 头部 ---------- */
.bao-faq__hero{
  max-width:720px;
  margin:0 auto 68px;
  text-align:center;
}
.bao-faq__eyebrow{
  margin:0;
  font-family:var(--bao-font);
  font-size:11px;
  font-weight:600;
  letter-spacing:.26em;
  text-transform:uppercase;
  color:var(--bao-gold);
}
.bao-faq__title{
  margin:16px 0 0;
  font-family:var(--bao-font);
  font-size:clamp(32px,4.2vw,44px);
  font-weight:700;
  line-height:1.22;
  letter-spacing:-.015em;
}
.bao-faq__title em{
  font-style:normal;
  color:var(--bao-gold);
  font-weight:700;
}
.bao-faq__rule{
  width:72px;
  height:1px;
  margin:24px auto 22px;
  background:linear-gradient(90deg,transparent,var(--bao-gold-soft),transparent);
  position:relative;
}
.bao-faq__rule::after{
  content:"";
  position:absolute;
  left:50%;
  top:50%;
  width:5px;
  height:5px;
  border:1px solid var(--bao-gold);
  transform:translate(-50%,-50%) rotate(45deg);
  background:var(--bao-bg);
}
.bao-faq__intro{
  margin:0 auto;
  max-width:600px;
  font-family:var(--bao-font);
  font-size:14px;
  font-weight:400;
  line-height:1.85;
  color:var(--bao-ink-soft);
}

/* ---------- 栅格 ---------- */
.bao-faq__layout{
  display:grid;
  grid-template-columns:204px minmax(0,1fr);
  gap:68px;
  align-items:start;
}

/* ---------- 左侧分类 ---------- */
.bao-faq__nav{
  position:sticky;
  top:36px;
  display:flex;
  flex-direction:column;
  gap:2px;
}
.bao-faq__nav a{
  position:relative;
  display:flex;
  align-items:baseline;
  gap:9px;
  padding:10px 0 10px 15px;
  font-family:var(--bao-font);
  font-size:12px;
  font-weight:400;
  letter-spacing:.02em;
  line-height:1.5;
  color:var(--bao-muted);
  text-decoration:none;
  transition:color .35s ease,font-weight .35s ease;
}
.bao-faq__nav a::before{
  content:"";
  position:absolute;
  left:0;
  top:50%;
  width:0;
  height:1px;
  background:var(--bao-gold);
  transform:translateY(-50%);
  transition:width .4s cubic-bezier(.2,.8,.2,1);
}
.bao-faq__nav a:hover,
.bao-faq__nav a.is-active{
  color:var(--bao-ink);
  font-weight:600;
}
.bao-faq__nav a:hover::before,
.bao-faq__nav a.is-active::before{
  width:8px;
}
.bao-faq__nav small{
  font-family:var(--bao-font);
  font-size:9.5px;
  font-weight:600;
  letter-spacing:.12em;
  color:var(--bao-gold);
  opacity:.8;
}

/* ---------- 分类组 ---------- */
.bao-faq__group{
  margin-bottom:64px;
  scroll-margin-top:32px;
}
.bao-faq__group:last-child{
  margin-bottom:8px;
}
.bao-faq__group-head{
  display:flex;
  align-items:baseline;
  gap:14px;
  margin:0 0 2px;
  padding-bottom:15px;
  border-bottom:1px solid var(--bao-line);
}
.bao-faq__group-index{
  font-family:var(--bao-font);
  font-size:11px;
  font-weight:600;
  letter-spacing:.18em;
  color:var(--bao-gold);
}
.bao-faq__group-head h2{
  margin:0;
  font-family:var(--bao-font);
  font-size:21px;
  font-weight:700;
  line-height:1.35;
  letter-spacing:-.005em;
}
.bao-faq__group-head span.bao-faq__group-cn{
  margin-left:auto;
  font-family:var(--bao-font);
  font-size:10.5px;
  font-weight:400;
  letter-spacing:.12em;
  color:var(--bao-silver);
}

/* ---------- 单条问答 ---------- */
.bao-faq__item{
  position:relative;
  padding:24px 22px 26px 22px;
  border-bottom:1px solid var(--bao-line);
  transition:background-color .45s ease;
}
.bao-faq__item::before{
  content:"";
  position:absolute;
  left:0;
  top:16px;
  bottom:16px;
  width:1px;
  background:linear-gradient(180deg,transparent,var(--bao-gold) 22%,var(--bao-gold) 78%,transparent);
  transform:scaleY(0);
  transform-origin:center;
  transition:transform .55s cubic-bezier(.2,.8,.2,1);
}
.bao-faq__item::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(90deg,rgba(184,147,90,.05),rgba(184,147,90,0) 46%);
  opacity:0;
  pointer-events:none;
  transition:opacity .5s ease;
}
.bao-faq__item:hover::before,
.bao-faq__item:focus-within::before{
  transform:scaleY(1);
}
.bao-faq__item:hover::after,
.bao-faq__item:focus-within::after{
  opacity:1;
}

/* 问题行 */
.bao-faq__q{
  position:relative;
  z-index:1;
  display:flex;
  align-items:flex-start;
  gap:12px;
}
.bao-faq__num{
  flex:0 0 22px;
  padding-top:2px;
  font-family:var(--bao-font);
  font-size:11px;
  font-weight:600;
  letter-spacing:.06em;
  color:var(--bao-silver);
  transition:color .4s ease,transform .4s ease;
}
.bao-faq__item:hover .bao-faq__num,
.bao-faq__item:focus-within .bao-faq__num{
  color:var(--bao-gold);
  transform:translateY(-1px);
}
.bao-faq__q h3{
  flex:1;
  margin:0;
  font-family:var(--bao-font);
  font-size:16px;
  font-weight:600;
  line-height:1.6;
  letter-spacing:.002em;
  transition:transform .5s cubic-bezier(.2,.8,.2,1),color .4s ease;
}
.bao-faq__item:hover .bao-faq__q h3,
.bao-faq__item:focus-within .bao-faq__q h3{
  transform:translateX(6px);
}

/* 悬停箭头 */
.bao-faq__arrow{
  position:relative;
  flex:0 0 30px;
  width:30px;
  height:30px;
  margin-top:-2px;
  border:1px solid transparent;
  border-radius:50%;
  transition:border-color .4s ease,transform .5s cubic-bezier(.2,.8,.2,1);
}
.bao-faq__arrow::before{
  content:"";
  position:absolute;
  left:7px;
  right:7px;
  top:50%;
  height:1px;
  background:var(--bao-silver);
  transform:scaleX(.5);
  transform-origin:right center;
  transition:background-color .4s ease,transform .5s cubic-bezier(.2,.8,.2,1);
}
.bao-faq__arrow::after{
  content:"";
  position:absolute;
  right:7px;
  top:50%;
  width:5px;
  height:5px;
  border-top:1px solid var(--bao-silver);
  border-right:1px solid var(--bao-silver);
  transform:translateY(-50%) rotate(45deg);
  transition:border-color .4s ease,transform .5s cubic-bezier(.2,.8,.2,1);
}
.bao-faq__item:hover .bao-faq__arrow,
.bao-faq__item:focus-within .bao-faq__arrow{
  border-color:var(--bao-gold-soft);
  transform:translateX(2px);
}
.bao-faq__item:hover .bao-faq__arrow::before,
.bao-faq__item:focus-within .bao-faq__arrow::before{
  background:var(--bao-gold);
  transform:scaleX(1);
}
.bao-faq__item:hover .bao-faq__arrow::after,
.bao-faq__item:focus-within .bao-faq__arrow::after{
  border-color:var(--bao-gold);
  transform:translate(2px,-50%) rotate(45deg);
}

/* 答案 */
.bao-faq__a{
  position:relative;
  z-index:1;
  margin:9px 42px 0 34px;
  max-width:72ch;
  font-family:var(--bao-font);
  font-size:14px;
  font-weight:400;
  line-height:1.85;
  color:var(--bao-ink-soft);
  transition:color .4s ease;
}
.bao-faq__item:hover .bao-faq__a,
.bao-faq__item:focus-within .bao-faq__a{
  color:var(--bao-ink);
}

/* ---------- 移动端 ---------- */
@media (max-width:900px){
  .bao-faq{padding:56px 18px 52px;}
  .bao-faq__hero{margin-bottom:40px;}
  .bao-faq__layout{grid-template-columns:1fr;gap:28px;}
  .bao-faq__nav{
    position:static;
    flex-direction:row;
    flex-wrap:wrap;
    gap:8px;
    padding-bottom:18px;
    border-bottom:1px solid var(--bao-line);
  }
  .bao-faq__nav a{
    padding:7px 12px;
    border:1px solid var(--bao-line);
    border-radius:999px;
    font-size:11px;
  }
  .bao-faq__nav a::before{display:none;}
  .bao-faq__nav small{display:none;}
  .bao-faq__group{margin-bottom:44px;}
  .bao-faq__group-head h2{font-size:19px;}
  .bao-faq__group-head span.bao-faq__group-cn{display:none;}
  .bao-faq__item{padding:20px 8px 22px 14px;}
  .bao-faq__q{gap:9px;}
  .bao-faq__q h3{font-size:15px;line-height:1.55;}
  .bao-faq__num{flex-basis:18px;font-size:10px;}
  .bao-faq__arrow{flex-basis:26px;width:26px;height:26px;}
  .bao-faq__a{margin:8px 4px 0 27px;font-size:13px;line-height:1.8;}
}

/* ---------- 减动效 ---------- */
@media (prefers-reduced-motion:reduce){
  .bao-faq-scope *{transition:none!important;}
}