.page-faq{
  --faq-rail:236px;
  --faq-note-bg:#F1EEEA;
  display:block;
}

/* ---------- 首屏 ---------- */
.page-faq .doc-hero{
  padding:22px 0 26px;
  border-bottom:1px solid var(--line);
}
.page-faq .doc-hero__kicker{
  margin:0 0 12px;
  font-size:12px;
  font-weight:700;
  letter-spacing:.09em;
  color:var(--fir);
}
.page-faq .doc-hero h1{
  margin:0 0 16px;
  max-width:20em;
  font-size:clamp(1.75rem,4vw,2.75rem);
  line-height:1.24;
  letter-spacing:-.01em;
  color:var(--ink);
}
.page-faq .doc-hero__lead{
  margin:0 0 22px;
  max-width:46em;
  font-size:17px;
  line-height:1.78;
  color:var(--ink);
}
.page-faq .doc-hero__actions{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
}

/* ---------- 规模数字带 ---------- */
.page-faq .doc-stats{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:1px;
  margin:24px 0 26px;
  background:var(--line);
  border:1px solid var(--line);
}
.page-faq .doc-stats__item{
  padding:14px 16px 15px;
  background:var(--sheet);
}
.page-faq .doc-stats__num{
  display:block;
  font-size:clamp(1.5rem,3.4vw,2rem);
  font-weight:800;
  line-height:1.1;
  font-variant-numeric:tabular-nums;
  color:var(--fir);
}
.page-faq .doc-stats__label{
  display:block;
  margin-top:5px;
  font-size:12px;
  letter-spacing:.06em;
  color:var(--mute);
}

/* ---------- 双栏骨架 ---------- */
.page-faq .doc-shell{
  display:grid;
  gap:20px;
  align-items:start;
}
.page-faq .doc-body{
  min-width:0;
}

/* ---------- 左侧目录树 ---------- */
.page-faq .doc-tree{
  padding:12px;
  background:var(--sheet);
  border:1px solid var(--line);
}
.page-faq .doc-tree__title{
  margin:0 0 10px;
  padding:0;
  font-size:12px;
  font-weight:700;
  letter-spacing:.1em;
  color:var(--fir);
}
.page-faq .doc-tree__list{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(148px,1fr));
  gap:2px;
  margin:0 0 12px;
  padding:0;
  list-style:none;
}
.page-faq .doc-tree__link{
  display:flex;
  align-items:baseline;
  gap:8px;
  padding:8px 10px;
  border-top:2px solid var(--line);
  color:var(--ink);
  font-size:14px;
  line-height:1.5;
  text-decoration:none;
  transition:border-color var(--dur) var(--ease),background var(--dur) var(--ease),color var(--dur) var(--ease);
}
.page-faq .doc-tree__link:hover{
  border-top-color:var(--fir);
  background:var(--fir-tint);
}
.page-faq .doc-tree__link.is-current{
  border-top-color:var(--fir);
  background:var(--fir-tint);
  font-weight:700;
}
.page-faq .doc-tree__num{
  flex:0 0 auto;
  font-size:12px;
  font-weight:700;
  font-variant-numeric:tabular-nums;
  color:var(--fir);
}
.page-faq .doc-tree__foot{
  margin:0;
  padding:10px 2px 0;
  border-top:1px solid var(--line-soft);
  font-size:12.5px;
  line-height:1.65;
  color:var(--mute);
}

/* ---------- 吸顶锚点条 ---------- */
.page-faq .anchor-bar{
  position:sticky;
  top:var(--topbar-h);
  z-index:6;
  display:flex;
  align-items:center;
  gap:4px;
  height:44px;
  margin:0 0 6px;
  padding:0 2px;
  overflow-x:auto;
  scrollbar-width:none;
  background:rgba(247,245,242,.84);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.page-faq .anchor-bar::-webkit-scrollbar{
  display:none;
}
.page-faq .anchor-bar__link{
  flex:0 0 auto;
  padding:5px 10px;
  border-radius:999px;
  color:var(--mute);
  font-size:13px;
  font-weight:600;
  text-decoration:none;
  transition:color var(--dur) var(--ease),background var(--dur) var(--ease);
}
.page-faq .anchor-bar__link:hover{
  color:var(--fir);
  background:var(--fir-tint);
}
.page-faq .anchor-bar__line{
  position:absolute;
  left:2px;
  bottom:-1px;
  width:32%;
  height:2px;
  border-radius:2px;
  background:linear-gradient(90deg,var(--red),var(--fir),var(--glacier));
  opacity:.85;
}

/* ---------- 章节 ---------- */
.page-faq .doc-sec{
  padding:30px 0 10px;
  border-top:1px solid var(--line);
  scroll-margin-top:calc(var(--topbar-h) + 62px);
}
.page-faq .doc-sec:first-of-type{
  border-top:0;
  padding-top:18px;
}
.page-faq .doc-sec .sec-head{
  margin-bottom:18px;
}
.page-faq .doc-sub{
  margin:28px 0 12px;
  font-size:15px;
  line-height:1.6;
  color:var(--mute);
  letter-spacing:.02em;
}

/* ---------- 四类文档 ---------- */
.page-faq .cat-list{
  display:grid;
  gap:1px;
  margin:0 0 24px;
  background:var(--line);
  border:1px solid var(--line);
}
.page-faq .cat-item{
  padding:18px 18px 20px;
  background:var(--sheet);
}
.page-faq .cat-item__head{
  display:flex;
  align-items:baseline;
  gap:10px;
  flex-wrap:wrap;
  margin-bottom:10px;
}
.page-faq .cat-item__num{
  font-size:22px;
  font-weight:800;
  line-height:1;
  font-variant-numeric:tabular-nums;
  color:var(--fir);
}
.page-faq .cat-item__name{
  margin:0;
  font-size:16px;
  line-height:1.4;
}
.page-faq .cat-item__count{
  margin-left:auto;
  padding:3px 8px;
  border:1px solid rgba(46,110,158,.28);
  border-radius:2px;
  background:var(--glacier-tint);
  color:var(--glacier);
  font-size:12px;
  font-weight:700;
  letter-spacing:.05em;
  font-variant-numeric:tabular-nums;
  white-space:nowrap;
}
.page-faq .cat-item__desc{
  margin:0;
  max-width:46em;
  font-size:14.5px;
  line-height:1.75;
  color:var(--ink);
}
.page-faq .media-frame{
  margin:0 0 8px;
}
.page-faq .media-frame--wide{
  max-width:100%;
}

/* ---------- 步骤清单 ---------- */
.page-faq .steps{
  margin:0 0 24px;
  padding:0;
  list-style:none;
}
.page-faq .steps__item{
  display:flex;
  gap:14px;
  padding:18px 0;
  border-bottom:1px solid var(--line-soft);
}
.page-faq .steps__item:first-child{
  padding-top:4px;
}
.page-faq .steps__item:last-child{
  border-bottom:0;
}
.page-faq .steps__box{
  flex:0 0 auto;
  width:38px;
  height:38px;
  padding:0;
  display:grid;
  place-items:center;
  border:1px solid var(--line);
  border-radius:10px;
  background:var(--sheet);
  color:var(--fir);
  font-family:inherit;
  font-size:16px;
  font-weight:800;
  font-variant-numeric:tabular-nums;
  cursor:pointer;
  transition:background var(--dur) var(--ease),color var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.page-faq .steps__box:hover{
  border-color:var(--fir);
}
.page-faq .steps__item.is-done .steps__box{
  background:var(--fir);
  border-color:var(--fir);
  color:#fff;
}
.page-faq .steps__body{
  min-width:0;
}
.page-faq .steps__title{
  margin:6px 0 8px;
  font-size:16px;
  line-height:1.5;
}
.page-faq .steps__body p{
  margin:0 0 6px;
  max-width:46em;
  font-size:14.5px;
  line-height:1.75;
  color:var(--ink);
}
.page-faq .steps__note{
  font-size:13.5px;
  line-height:1.7;
  color:var(--mute);
}
.page-faq .steps__note-key{
  display:inline-block;
  margin-right:8px;
  font-weight:700;
  color:var(--fir);
}
.page-faq .steps__note--warn .steps__note-key{
  color:var(--red-deep);
}

/* ---------- 基础使用三要点 ---------- */
.page-faq .tips{
  display:grid;
  gap:1px;
  margin:0 0 6px;
  background:var(--line);
  border:1px solid var(--line);
}
.page-faq .tip{
  padding:20px 18px 22px;
  background:var(--sheet);
}
.page-faq .tip__num{
  display:block;
  margin-bottom:10px;
  font-size:34px;
  font-weight:800;
  line-height:1;
  font-variant-numeric:tabular-nums;
  color:var(--glacier);
}
.page-faq .tip__title{
  margin:0 0 8px;
  font-size:16px;
  line-height:1.5;
}
.page-faq .tip__text{
  margin:0;
  font-size:14.5px;
  line-height:1.75;
  color:var(--ink);
}

/* ---------- 症状索引 ---------- */
.page-faq .filter-bar{
  margin:0 0 8px;
}
.page-faq .index-list{
  margin:6px 0 0;
}
.page-faq .index-list__title{
  font-size:15px;
}
.page-faq .index-list__meta{
  display:block;
  margin-top:3px;
}

/* ---------- 复查节奏 ---------- */
.page-faq .review-list{
  display:grid;
  gap:1px;
  margin:0;
  padding:0;
  list-style:none;
  background:var(--line);
  border:1px solid var(--line);
}
.page-faq .review-item{
  display:grid;
  gap:10px;
  padding:16px 18px 18px;
  background:var(--sheet);
}
.page-faq .review-item__text{
  margin:0;
  max-width:46em;
  font-size:14.5px;
  line-height:1.75;
  color:var(--ink);
}
.page-faq .review-item__text a{
  color:var(--glacier);
  text-underline-offset:3px;
}

/* ---------- 人工协助 ---------- */
.page-faq .resolve{
  padding:22px 20px 24px;
  background:var(--faq-note-bg);
  border:1px solid var(--line);
  box-shadow:6px 6px 0 rgba(31,92,74,.12);
}
.page-faq .resolve__lead{
  margin:0 0 12px;
  font-size:15px;
  font-weight:700;
  color:var(--fir);
}
.page-faq .resolve__list{
  margin:0 0 16px;
  padding-left:1.15em;
  max-width:46em;
  font-size:14.5px;
  line-height:1.85;
  color:var(--ink);
}
.page-faq .resolve__note{
  margin:0 0 18px;
  max-width:46em;
  font-size:14px;
  line-height:1.75;
  color:var(--mute);
}
.page-faq .resolve__note a{
  color:var(--glacier);
  text-underline-offset:3px;
}
.page-faq .resolve__actions{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
}

/* ---------- 平板及以上 ---------- */
@media (min-width:700px){
  .page-faq .doc-stats{
    grid-template-columns:repeat(4,minmax(0,1fr));
  }
  .page-faq .cat-list{
    grid-template-columns:repeat(2,minmax(0,1fr));
  }
  .page-faq .tips{
    grid-template-columns:repeat(3,minmax(0,1fr));
  }
  .page-faq .review-item{
    grid-template-columns:112px minmax(0,1fr);
    align-items:start;
    gap:16px;
  }
  .page-faq .resolve{
    padding:26px 28px 28px;
  }
}

/* ---------- 桌面双栏文档结构 ---------- */
@media (min-width:1040px){
  .page-faq .doc-shell{
    grid-template-columns:var(--faq-rail) minmax(0,1fr);
    gap:52px;
  }
  .page-faq .doc-tree{
    position:sticky;
    top:calc(var(--topbar-h) + 18px);
    padding:18px 0 16px;
  }
  .page-faq .doc-tree__title{
    padding:0 16px;
  }
  .page-faq .doc-tree__list{
    grid-template-columns:minmax(0,1fr);
    gap:0;
  }
  .page-faq .doc-tree__link{
    padding:9px 16px 9px 14px;
    border-top:0;
    border-left:2px solid transparent;
  }
  .page-faq .doc-tree__link:hover,
  .page-faq .doc-tree__link.is-current{
    border-left-color:var(--fir);
    border-top-color:transparent;
  }
  .page-faq .doc-tree__foot{
    padding:10px 16px 0;
  }
  .page-faq .doc-sec{
    padding:36px 0 12px;
  }
  .page-faq .doc-sec:first-of-type{
    padding-top:22px;
  }
  .page-faq .doc-sec .sec-head{
    margin-bottom:22px;
  }
}

@media (prefers-reduced-motion:reduce){
  .page-faq .doc-tree__link,
  .page-faq .anchor-bar__link,
  .page-faq .steps__box{
    transition:none;
  }
}