.page-faq{display:block;color:var(--paper);}

/* ---------- 面包屑 ---------- */
.page-faq .crumbs{margin-bottom:18px;}
.page-faq .crumbs-list{display:flex;flex-wrap:wrap;align-items:center;gap:8px;list-style:none;margin:0;padding:0;font-family:var(--font-mono);font-size:.75rem;letter-spacing:.12em;}
.page-faq .crumbs-item{display:flex;align-items:center;gap:8px;}
.page-faq .crumbs-item + .crumbs-item::before{content:"/";color:var(--line-strong);}
.page-faq .crumbs-link{color:var(--mist);text-decoration:none;transition:color .18s ease;}
.page-faq .crumbs-link:hover,.page-faq .crumbs-link:focus-visible{color:var(--green-lt);}
.page-faq .crumbs-current{color:var(--orange-2);}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero{padding:calc(var(--hdr-total) + 20px) 0 12px;}

.page-faq .hero-frame{
  position:relative;
  overflow:hidden;
  border:1px solid var(--line);
  padding:26px 18px 24px;
  background:
    radial-gradient(130% 92% at 86% 0%, rgba(31,191,117,.24) 0%, rgba(31,191,117,0) 56%),
    radial-gradient(90% 72% at 0% 100%, rgba(46,107,255,.18) 0%, rgba(46,107,255,0) 62%),
    linear-gradient(164deg, var(--ink-2) 0%, var(--ink) 68%);
}
.page-faq .hero-frame::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:
    linear-gradient(to right, var(--line) 1px, transparent 1px),
    linear-gradient(to bottom, var(--line) 1px, transparent 1px);
  background-size:44px 44px;
  opacity:.6;
  pointer-events:none;
  -webkit-mask-image:linear-gradient(180deg, #000 0%, rgba(0,0,0,0) 84%);
  mask-image:linear-gradient(180deg, #000 0%, rgba(0,0,0,0) 84%);
}
.page-faq .hero-frame > *{position:relative;z-index:1;}

.page-faq .hero-index{
  margin:0;
  font-size:.75rem;
  letter-spacing:.14em;
  color:var(--orange-2);
}
.page-faq .hero-title{
  margin:.55rem 0 0;
  max-width:22ch;
  font-size:clamp(1.95rem,7.4vw,3.6rem);
  line-height:1.06;
  font-weight:900;
  letter-spacing:-.02em;
  color:var(--paper);
}
.page-faq .hero-lead{
  margin:16px 0 0;
  max-width:34em;
  font-size:1rem;
  line-height:1.75;
  color:var(--mist);
}

.page-faq .hero-stats{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:1px;
  margin-top:26px;
  background:var(--line);
  border:1px solid var(--line);
}
.page-faq .stat{
  display:flex;
  flex-direction:column;
  gap:4px;
  padding:14px 12px;
  background:rgba(11,15,14,.74);
}
.page-faq .stat-num{
  font-family:var(--font-mono);
  font-weight:700;
  font-size:1.5rem;
  letter-spacing:-.01em;
  color:var(--green-lt);
}
.page-faq .stat-label{font-size:.8125rem;line-height:1.5;color:var(--mist);}

/* ---------- 通用区块节奏 ---------- */
.page-faq .section{padding:54px 0;}
.page-faq .section--tight{padding:40px 0;}
.page-faq .section--band{
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  background:linear-gradient(180deg, rgba(18,48,40,.58) 0%, rgba(11,15,14,.2) 100%);
}
.page-faq .section-head{margin-bottom:20px;}
.page-faq .section-title{margin:.4rem 0 0;font-size:clamp(1.4rem,5.4vw,2.1rem);line-height:1.2;font-weight:900;letter-spacing:-.01em;color:var(--paper);}
.page-faq .section-sub{margin:12px 0 0;max-width:34em;font-size:.9375rem;line-height:1.75;color:var(--mist);}
.page-faq .prose{margin:0 0 16px;max-width:34em;font-size:1rem;line-height:1.78;color:var(--mist);}

/* ---------- 筛选与卡片 ---------- */
.page-faq .filter-bar{display:flex;flex-wrap:wrap;gap:8px;margin:20px 0 10px;}
.page-faq .filter-btn{
  appearance:none;
  min-height:44px;
  padding:9px 16px;
  border:1px solid var(--line-strong);
  background:transparent;
  color:var(--paper);
  font:inherit;
  font-size:.875rem;
  cursor:pointer;
  transition:background .18s ease,color .18s ease,border-color .18s ease;
}
.page-faq .filter-btn:hover,
.page-faq .filter-btn:focus-visible{border-color:var(--orange);color:var(--orange-2);background:rgba(255,90,31,.1);}
.page-faq .filter-btn.is-active,
.page-faq .filter-btn[aria-pressed="true"]{background:var(--grad-cta);border-color:transparent;color:#0B0F0E;font-weight:700;}

.page-faq .filter-count{margin:0 0 20px;font-size:.8125rem;letter-spacing:.1em;color:var(--mist);}
.page-faq .filter-count span{font-weight:700;color:var(--green-lt);}

.page-faq .qa-list{list-style:none;margin:0;padding:0;display:grid;gap:10px;}
.page-faq .qa-item{
  border:1px solid var(--line);
  background:linear-gradient(158deg, rgba(18,48,40,.72) 0%, rgba(11,15,14,.92) 100%);
  transition:transform .22s ease,border-color .22s ease;
}
.page-faq .qa-item:hover{border-color:var(--line-strong);}
.page-faq .qa-item:focus-within{border-color:var(--orange);}

.page-faq .qa-trigger{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px 12px;
  width:100%;
  min-height:64px;
  padding:15px 16px;
  border:0;
  background:none;
  color:var(--paper);
  font:inherit;
  text-align:left;
  cursor:pointer;
}
.page-faq .qa-idx{
  flex:0 0 auto;
  font-family:var(--font-mono);
  font-size:.75rem;
  letter-spacing:.14em;
  color:var(--green);
}
.page-faq .qa-title{flex:1 1 8rem;font-size:1rem;font-weight:700;line-height:1.45;}
.page-faq .qa-tag{
  flex:0 0 auto;
  font-family:var(--font-mono);
  font-size:.6875rem;
  letter-spacing:.1em;
  padding:3px 9px;
  color:var(--orange-2);
  border:1px solid rgba(255,162,58,.42);
  background:rgba(255,162,58,.1);
}

.page-faq .qa-panel{
  padding:16px;
  border-top:1px solid var(--line);
  background:rgba(5,10,18,.52);
}
.page-faq .qa-symptom,
.page-faq .qa-fit{margin:0 0 10px;font-size:.9375rem;line-height:1.72;color:var(--mist);}
.page-faq .qa-fit{color:var(--paper);opacity:.86;}
.page-faq .qa-steps{
  counter-reset:qs;
  list-style:none;
  margin:12px 0 0;
  padding:0 0 0 14px;
  border-left:2px solid var(--green);
}
.page-faq .qa-steps li{
  counter-increment:qs;
  position:relative;
  padding:9px 0 9px 26px;
  font-size:.9375rem;
  line-height:1.68;
  color:var(--paper);
  border-bottom:1px dashed var(--line);
}
.page-faq .qa-steps li:last-child{border-bottom:0;}
.page-faq .qa-steps li::before{
  content:counter(qs,decimal-leading-zero);
  position:absolute;
  left:0;
  top:9px;
  font-family:var(--font-mono);
  font-size:.75rem;
  color:var(--green);
}

.page-faq .empty-state{
  margin-top:16px;
  padding:24px 18px;
  border:1px dashed var(--line-strong);
  background:
    linear-gradient(to right, var(--line) 1px, transparent 1px) 0 0/36px 36px,
    linear-gradient(to bottom, var(--line) 1px, transparent 1px) 0 0/36px 36px,
    rgba(11,15,14,.7);
}
.page-faq .empty-state .empty-title{margin:0 0 8px;font-weight:800;color:var(--paper);}
.page-faq .empty-state p{margin:0 0 14px;font-size:.9375rem;line-height:1.7;color:var(--mist);}

/* ---------- 兼容清单 ---------- */
.page-faq .grid-12{display:grid;grid-template-columns:minmax(0,1fr);gap:28px;}
.page-faq .col-main{min-width:0;}
.page-faq .col-right{min-width:0;}

.page-faq .faq-img{
  margin:18px 0 0;
  padding:0;
  overflow:hidden;
  border:1px solid var(--line);
  background:var(--grad-deep);
}
.page-faq .faq-img img{display:block;width:100%;height:auto;max-width:100%;object-fit:cover;}
.page-faq .faq-img .img-cap{
  padding:10px 14px;
  border-top:1px solid var(--line);
  font-size:.8125rem;
  line-height:1.6;
  color:var(--mist);
}

.page-faq .compat-grid{list-style:none;margin:22px 0 0;padding:0;display:grid;gap:8px;}
.page-faq .compat-row{
  display:grid;
  grid-template-columns:minmax(0,1fr) auto;
  gap:6px 14px;
  align-items:center;
  padding:14px 15px;
  border:1px solid var(--line);
  background:rgba(11,15,14,.66);
  transition:border-color .2s ease,transform .2s ease;
}
.page-faq .compat-row:hover{border-color:var(--line-strong);transform:translateY(-2px);}
.page-faq .compat-brand{grid-area:1 / 1 / 2 / 2;font-family:var(--font-mono);font-size:.8125rem;letter-spacing:.06em;color:var(--paper);}
.page-faq .status{
  grid-area:1 / 2 / 2 / 3;
  justify-self:end;
  white-space:nowrap;
  padding:4px 10px;
  border:1px solid;
  font-family:var(--font-mono);
  font-size:.6875rem;
  letter-spacing:.12em;
}
.page-faq .status--ok{color:var(--green-lt);border-color:rgba(123,242,192,.44);background:rgba(31,191,117,.13);}
.page-faq .status--warn{color:var(--warn);border-color:rgba(255,211,77,.44);background:rgba(255,211,77,.1);}
.page-faq .status--off{color:var(--mist);border-color:rgba(154,168,163,.34);background:rgba(154,168,163,.08);}
.page-faq .compat-detail{grid-area:2 / 1 / 3 / 3;font-size:.875rem;line-height:1.65;color:var(--mist);}

.page-faq .legend{
  margin-top:22px;
  padding:18px 16px;
  border:1px solid var(--line);
  background:linear-gradient(160deg, rgba(18,48,40,.72) 0%, rgba(11,15,14,.88) 100%);
}
.page-faq .legend--alt{margin-top:12px;background:rgba(5,10,18,.6);}
.page-faq .legend-title{margin:0 0 12px;font-family:var(--font-mono);font-size:.75rem;letter-spacing:.14em;color:var(--orange-2);}
.page-faq .legend-list{list-style:none;margin:0;padding:0;display:grid;gap:10px;font-size:.875rem;line-height:1.6;color:var(--paper);}
.page-faq .legend-list li{display:flex;gap:9px;align-items:flex-start;}
.page-faq .dot{flex:0 0 auto;width:10px;height:10px;margin-top:6px;display:inline-block;}
.page-faq .dot--ok{background:var(--green);}
.page-faq .dot--warn{background:var(--warn);}
.page-faq .dot--off{background:var(--mist);}
.page-faq .legend-note{margin:14px 0 0;font-size:.8125rem;line-height:1.7;color:var(--mist);}

/* ---------- 排查路径 ---------- */
.page-faq .steps-rail{
  display:flex;
  gap:6px;
  margin:22px 0 0;
  padding-bottom:4px;
  overflow-x:auto;
  scroll-snap-type:x proximity;
  -webkit-overflow-scrolling:touch;
}
.page-faq .rail-item{
  flex:0 0 auto;
  scroll-snap-align:start;
  display:flex;
  align-items:center;
  gap:8px;
  min-height:44px;
  padding:10px 15px;
  border:1px solid var(--line);
  background:rgba(18,48,40,.5);
  color:var(--paper);
  font-size:.875rem;
  text-decoration:none;
  transition:border-color .18s ease,color .18s ease,background .18s ease;
}
.page-faq .rail-item .mono{font-weight:700;color:var(--orange);}
.page-faq .rail-item:hover,
.page-faq .rail-item:focus-visible{border-color:var(--orange);color:var(--orange-2);background:rgba(255,90,31,.12);}

.page-faq .steps-list{list-style:none;margin:16px 0 0;padding:0;display:grid;gap:12px;}
.page-faq .step{
  position:relative;
  padding:18px 16px 18px 20px;
  border:1px solid var(--line);
  background:linear-gradient(140deg, rgba(18,48,40,.62) 0%, rgba(11,15,14,.9) 100%);
  scroll-margin-top:calc(var(--hdr-total) + 20px);
}
.page-faq .step::before{
  content:"";
  position:absolute;
  left:0;
  top:18px;
  bottom:18px;
  width:3px;
  background:var(--grad-cta);
}
.page-faq .step-head{display:flex;justify-content:space-between;align-items:center;gap:12px;}
.page-faq .step-num{font-family:var(--font-mono);font-size:.75rem;letter-spacing:.14em;color:var(--orange);}
.page-faq .step-time{font-family:var(--font-mono);font-size:.75rem;letter-spacing:.1em;color:var(--mist);}
.page-faq .step-title{margin:8px 0 10px;font-size:1.0625rem;font-weight:800;line-height:1.4;color:var(--paper);}
.page-faq .step p{margin:0;font-size:.9375rem;line-height:1.74;color:var(--mist);}
.page-faq .step-expect{
  margin-top:12px !important;
  padding-top:12px;
  border-top:1px dashed var(--line);
  color:var(--paper) !important;
}
.page-faq .step-expect .mono{
  margin-right:8px;
  font-size:.6875rem;
  letter-spacing:.12em;
  color:var(--green);
}

/* ---------- 显示异常 ---------- */
.page-faq .issue-grid{display:grid;grid-template-columns:minmax(0,1fr);gap:12px;}
.page-faq .issue-card{
  padding:18px 16px;
  border:1px solid var(--line);
  background:linear-gradient(150deg, rgba(18,48,40,.55) 0%, rgba(11,15,14,.92) 100%);
}
.page-faq .issue-card h3{margin:0 0 10px;font-size:1.0625rem;font-weight:800;line-height:1.4;color:var(--paper);}
.page-faq .issue-card p{margin:0 0 12px;font-size:.9375rem;line-height:1.74;color:var(--mist);}
.page-faq .issue-action{
  display:block;
  margin:0;
  padding-left:12px;
  border-left:2px solid var(--green);
  font-family:var(--font-mono);
  font-size:.8125rem;
  line-height:1.65;
  color:var(--green-lt);
}

/* ---------- 历史记录 ---------- */
.page-faq .inline-links{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px;}
.page-faq .exhibit{
  padding:18px 16px;
  border:1px solid var(--line);
  background:rgba(11,15,14,.72);
  transition:transform .22s ease,border-color .22s ease;
}
.page-faq .exhibit:hover,.page-faq .exhibit:focus-within{transform:translateY(-4px);border-color:var(--orange);}
.page-faq .exhibit-idx{display:block;font-family:var(--font-mono);font-size:.6875rem;letter-spacing:.16em;color:var(--orange-2);}
.page-faq .exhibit-title{margin:8px 0 8px;font-size:1rem;font-weight:800;color:var(--paper);}
.page-faq .exhibit-note{margin:0;font-size:.875rem;line-height:1.7;color:var(--mist);}

/* ---------- 人工协助 ---------- */
.page-faq .prep-wrap{
  padding:26px 18px;
  border:1px solid var(--line);
  background:
    radial-gradient(120% 90% at 92% 0%, rgba(255,90,31,.16) 0%, rgba(255,90,31,0) 58%),
    linear-gradient(158deg, rgba(18,48,40,.75) 0%, rgba(11,15,14,.94) 100%);
}
.page-faq .prep-head .section-sub{margin-bottom:20px;}
.page-faq .prep-list{
  list-style:none;
  margin:0;
  padding:0;
  display:grid;
  gap:1px;
  background:var(--line);
  border:1px solid var(--line);
}
.page-faq .prep-list li{
  display:flex;
  align-items:center;
  gap:12px;
  padding:13px 14px;
  background:rgba(11,15,14,.78);
  font-size:.9375rem;
  line-height:1.6;
  color:var(--paper);
}
.page-faq .prep-list .mono{font-family:var(--font-mono);font-size:.75rem;color:var(--green);letter-spacing:.12em;}
.page-faq .prep-actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px;}
.page-faq .prep-note{margin:16px 0 0;max-width:34em;font-size:.8125rem;line-height:1.72;color:var(--mist);}

/* ---------- 响应式 ---------- */
@media (min-width:640px){
  .page-faq .hero-frame{padding:34px 30px 30px;}
  .page-faq .hero-stats{grid-template-columns:repeat(4,minmax(0,1fr));}
  .page-faq .compat-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .page-faq .prep-wrap{padding:32px 28px;}
}

@media (min-width:900px){
  .page-faq .section{padding:72px 0;}
  .page-faq .section--tight{padding:54px 0;}
  .page-faq .issue-grid{grid-template-columns:repeat(3,minmax(0,1fr));}
  .page-faq .steps-list{grid-template-columns:repeat(2,minmax(0,1fr));}
  .page-faq .qa-trigger{padding:17px 20px;}
  .page-faq .qa-panel{padding:18px 20px 20px;}
}

@media (min-width:1000px){
  .page-faq .grid-12{grid-template-columns:repeat(12,minmax(0,1fr));column-gap:28px;row-gap:32px;}
  .page-faq .col-main{grid-column:1 / span 8;}
  .page-faq .col-right{grid-column:9 / span 4;}
  .page-faq .col-right .legend{margin-top:0;}
  .page-faq .col-right .legend + .legend{margin-top:14px;}
  .page-faq .hero-title{font-size:clamp(2.4rem,4.4vw,3.6rem);}
}

@media (min-width:1200px){
  .page-faq .steps-list{grid-template-columns:repeat(4,minmax(0,1fr));gap:14px;}
}

@media (prefers-reduced-motion:reduce){
  .page-faq *,
  .page-faq *::before,
  .page-faq *::after{transition-duration:.01ms !important;animation-duration:.01ms !important;}
  .page-faq .compat-row:hover,
  .page-faq .exhibit:hover{transform:none;}
}