.page-faq{
  background: var(--ink-900);
  color: var(--paper);
  overflow-x: clip;
  --faq-radius: var(--radius-lg);
  --faq-panel: var(--ink-800);
  --faq-line: var(--line);
}

/* ---------- 面包屑 ---------- */
.page-faq .breadcrumb{
  display: flex;
  align-items: center;
  gap: 8px;
  padding-top: clamp(16px, 3vw, 28px);
  font-size: var(--fs-12);
  letter-spacing: .08em;
  color: var(--muted);
}
.page-faq .breadcrumb a{
  color: var(--muted);
  text-decoration: none;
  transition: color 200ms var(--ease);
}
.page-faq .breadcrumb a:hover{ color: var(--gold-300); }
.page-faq .breadcrumb [aria-current="page"]{ color: var(--gold-500); }

/* ---------- 首屏 ---------- */
.page-faq .faq-hero{
  position: relative;
  padding: clamp(22px, 4vw, 40px) 0 clamp(30px, 6vw, 64px);
}
.page-faq .faq-hero::before{
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(620px 540px at 16% -12%, rgba(242,160,60,.20), transparent 64%),
    radial-gradient(560px 460px at 92% 72%, rgba(79,195,247,.12), transparent 68%);
}
.page-faq .faq-hero-inner{
  position: relative;
  display: grid;
  gap: clamp(26px, 4vw, 44px);
}
.page-faq .faq-hero-copy h1{
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-size: clamp(2rem, 7.2vw, 4.5rem);
  font-weight: 900;
  line-height: 1.05;
  letter-spacing: -.02em;
  color: var(--paper);
}
.page-faq .faq-hero-copy h1::after{
  content: "";
  display: block;
  width: 64px;
  height: 4px;
  margin-top: 20px;
  border-radius: var(--radius-pill);
  background: linear-gradient(90deg, var(--gold-500), var(--gold-300));
}
.page-faq .faq-lead{
  margin: 22px 0 0;
  max-width: 36ch;
  font-size: var(--fs-16);
  line-height: 1.85;
  color: rgba(244,241,234,.78);
}
.page-faq .faq-hero-actions{
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}
.page-faq .faq-hero-actions .btn{ text-decoration: none; }

.page-faq .hero-facts{
  display: grid;
  gap: 4px;
  padding: 10px 20px;
  border: 1px solid var(--faq-line);
  border-radius: var(--faq-radius);
  background: linear-gradient(165deg, rgba(26,32,48,.92), rgba(10,12,17,.72));
}
.page-faq .hero-fact{
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 14px 0;
  border-top: 1px solid rgba(42,50,66,.7);
}
.page-faq .hero-fact:first-child{ border-top: 0; }
.page-faq .fact-num{
  flex: 0 0 auto;
  min-width: 2.6ch;
  font-family: var(--font-mono);
  font-size: var(--fs-24);
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  color: var(--gold-500);
  line-height: 1;
}
.page-faq .fact-text{
  font-size: var(--fs-14);
  line-height: 1.7;
  color: rgba(244,241,234,.74);
}

/* ---------- 布局骨架 ---------- */
.page-faq .faq-layout{
  display: grid;
  gap: clamp(30px, 5vw, 48px);
  padding-bottom: clamp(48px, 8vw, 96px);
}
.page-faq .faq-flow{
  display: grid;
  gap: clamp(44px, 7vw, 88px);
  min-width: 0;
}

/* ---------- 区块标题 ---------- */
.page-faq .faq-sec{ min-width: 0; scroll-margin-top: calc(var(--header-h) + 24px); }
.page-faq .sec-head{ margin-bottom: clamp(20px, 3vw, 30px); }
.page-faq .sec-title{
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 4.4vw, 2.5rem);
  font-weight: 900;
  line-height: 1.15;
  letter-spacing: -.01em;
  color: var(--paper);
}
.page-faq .sec-sub{
  margin: 12px 0 0;
  max-width: 54ch;
  font-size: var(--fs-16);
  line-height: 1.85;
  color: rgba(244,241,234,.72);
}
.page-faq .sec-actions{
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}
.page-faq .sec-actions .btn{ text-decoration: none; }

/* ---------- 筛选 ---------- */
.page-faq .filter-bar{
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 22px;
}
.page-faq .filter-pill{
  appearance: none;
  border: 1px solid var(--faq-line);
  background: var(--ink-800);
  color: rgba(244,241,234,.76);
  font-family: inherit;
  font-size: var(--fs-14);
  line-height: 1;
  padding: 11px 18px;
  border-radius: var(--radius-pill);
  cursor: pointer;
  transition: background 200ms var(--ease), color 200ms var(--ease), border-color 200ms var(--ease);
}
.page-faq .filter-pill:hover{
  border-color: var(--gold-700);
  color: var(--gold-300);
}
.page-faq .filter-pill[aria-pressed="true"]{
  background: var(--gold-500);
  border-color: var(--gold-500);
  color: var(--ink-900);
  font-weight: 700;
}
.page-faq [data-filter-target].is-filtered{ display: none; }

/* ---------- 分类卡 ---------- */
.page-faq .cat-grid{
  display: grid;
  gap: 14px;
  grid-template-columns: minmax(0, 1fr);
}
.page-faq .cat-card{
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 22px 22px 20px;
  border: 1px solid var(--faq-line);
  border-radius: var(--radius-md);
  background: var(--faq-panel);
  color: inherit;
  text-decoration: none;
  overflow: hidden;
  transition: transform 240ms var(--ease), border-color 240ms var(--ease), box-shadow 240ms var(--ease);
}
.page-faq .cat-card::after{
  content: "";
  position: absolute;
  inset: auto -30% -60% auto;
  width: 160px;
  height: 160px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(242,160,60,.20), transparent 70%);
  opacity: 0;
  transition: opacity 260ms var(--ease);
}
.page-faq .cat-card:hover,
.page-faq .cat-card:focus-visible{
  transform: translateY(-2px);
  border-color: var(--gold-500);
  box-shadow: var(--shadow-lift);
  outline: none;
}
.page-faq .cat-card:hover::after{ opacity: 1; }
.page-faq .cat-num{
  font-family: var(--font-mono);
  font-size: var(--fs-14);
  font-weight: 700;
  letter-spacing: .12em;
  color: var(--gold-500);
}
.page-faq .cat-title{
  font-family: var(--font-display);
  font-size: var(--fs-18);
  font-weight: 800;
  line-height: 1.35;
  color: var(--paper);
}
.page-faq .cat-desc{
  font-size: var(--fs-14);
  line-height: 1.75;
  color: rgba(244,241,234,.66);
}
.page-faq .cat-go{
  margin-top: 6px;
  font-size: var(--fs-12);
  letter-spacing: .1em;
  color: var(--volt-400);
}

/* ---------- 四步安装 ---------- */
.page-faq .step-list{
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0;
}
.page-faq .step{
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 10px;
  padding: 24px 0;
  border-top: 1px solid var(--faq-line);
}
.page-faq .step:last-child{ border-bottom: 1px solid var(--faq-line); }
.page-faq .step-num{
  font-family: var(--font-mono);
  font-size: clamp(2.25rem, 8vw, 3.5rem);
  font-weight: 700;
  line-height: .9;
  letter-spacing: -.04em;
  font-variant-numeric: tabular-nums;
  color: transparent;
  -webkit-text-stroke: 1px var(--gold-700);
}
.page-faq .step-body{ min-width: 0; }
.page-faq .step-title{
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: var(--fs-18);
  font-weight: 800;
  line-height: 1.4;
  color: var(--paper);
}
.page-faq .step-body p{
  margin: 0 0 10px;
  max-width: 40ch;
  font-size: var(--fs-16);
  line-height: 1.8;
  color: rgba(244,241,234,.74);
}
.page-faq .step-hint{
  margin: 0;
  padding-left: 12px;
  border-left: 2px solid var(--volt-400);
  font-size: var(--fs-14);
  line-height: 1.75;
  color: var(--volt-400);
}

/* ---------- 图片 ---------- */
.page-faq .faq-figure{
  margin: 26px 0 0;
}
.page-faq .faq-figure img{
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border-radius: var(--faq-radius);
}
.page-faq .faq-figure figcaption{
  margin-top: 12px;
  font-size: var(--fs-12);
  line-height: 1.7;
  letter-spacing: .04em;
  color: var(--muted);
}
.page-faq .zoom-check{
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}
.page-faq .zoom-frame{
  position: relative;
  display: block;
  overflow: hidden;
  border: 1px solid var(--faq-line);
  border-radius: var(--faq-radius);
  background: var(--ink-800);
  cursor: zoom-in;
}
.page-faq .zoom-frame img{
  transition: transform 480ms var(--ease);
}
.page-faq .zoom-check:checked + .zoom-frame{ cursor: zoom-out; }
.page-faq .zoom-check:checked + .zoom-frame img{ transform: scale(1.55); }
.page-faq .zoom-check:focus-visible + .zoom-frame{
  outline: 2px solid var(--gold-500);
  outline-offset: 3px;
}
.page-faq .zoom-tip{
  position: absolute;
  right: 12px;
  bottom: 12px;
  padding: 6px 12px;
  border-radius: var(--radius-pill);
  background: rgba(10,12,17,.78);
  border: 1px solid var(--faq-line);
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: .06em;
  color: var(--gold-300);
}

/* ---------- 设备表 ---------- */
.page-faq .table-wrap{
  overflow-x: auto;
  border: 1px solid var(--faq-line);
  border-radius: var(--radius-md);
  background: var(--faq-panel);
}
.page-faq .spec-table{
  width: 100%;
  min-width: 560px;
  border-collapse: collapse;
  font-size: var(--fs-14);
  line-height: 1.7;
}
.page-faq .spec-table thead th{
  position: sticky;
  top: 0;
  z-index: 1;
  padding: 14px 16px;
  text-align: left;
  background: var(--ink-700);
  color: var(--gold-300);
  font-size: var(--fs-12);
  font-weight: 700;
  letter-spacing: .12em;
  white-space: nowrap;
}
.page-faq .spec-table tbody th{
  padding: 16px;
  text-align: left;
  font-weight: 800;
  color: var(--paper);
  white-space: nowrap;
}
.page-faq .spec-table tbody td{
  padding: 16px;
  color: rgba(244,241,234,.74);
}
.page-faq .spec-table tbody tr{ border-top: 1px solid rgba(42,50,66,.7); }
.page-faq .spec-table tbody tr:nth-child(even){ background: rgba(255,255,255,.022); }
.page-faq .spec-table tbody tr:hover{ background: rgba(242,160,60,.06); }
.page-faq .table-note{
  margin: 12px 0 0;
  font-size: var(--fs-12);
  line-height: 1.75;
  color: var(--muted);
}

/* ---------- 刷新排查 ---------- */
.page-faq .refresh-grid{
  display: grid;
  gap: 26px;
}
.page-faq .check-list{
  list-style: none;
  counter-reset: stepc;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 16px;
}
.page-faq .check-list li{
  counter-increment: stepc;
  position: relative;
  padding: 18px 18px 18px 58px;
  border: 1px solid var(--faq-line);
  border-radius: var(--radius-md);
  background: var(--faq-panel);
}
.page-faq .check-list li::before{
  content: counter(stepc, decimal-leading-zero);
  position: absolute;
  left: 18px;
  top: 18px;
  font-family: var(--font-mono);
  font-size: var(--fs-14);
  font-weight: 700;
  letter-spacing: .06em;
  color: var(--volt-400);
}
.page-faq .check-list h3{
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-size: var(--fs-16);
  font-weight: 800;
  color: var(--paper);
}
.page-faq .check-list p{
  margin: 0;
  font-size: var(--fs-14);
  line-height: 1.8;
  color: rgba(244,241,234,.72);
}
.page-faq .faq-figure--side{ margin: 0; }
.page-faq .faq-figure--side img{ aspect-ratio: 1 / 1; object-fit: cover; }

/* ---------- 折叠面板 ---------- */
.page-faq .detail-stack{
  display: grid;
  gap: 12px;
  margin-top: 26px;
}
.page-faq .detail-stack details{
  border: 1px solid var(--faq-line);
  border-radius: var(--radius-md);
  background: var(--faq-panel);
  overflow: hidden;
  transition: border-color 220ms var(--ease), box-shadow 220ms var(--ease);
}
.page-faq .detail-stack details[open]{
  border-color: rgba(242,160,60,.4);
  box-shadow: inset 3px 0 0 var(--gold-500);
}
.page-faq .detail-stack summary{
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 20px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-display);
  font-size: var(--fs-16);
  font-weight: 800;
  line-height: 1.5;
  color: var(--paper);
}
.page-faq .detail-stack summary::-webkit-details-marker{ display: none; }
.page-faq .detail-stack summary::after{
  content: "+";
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: var(--fs-18);
  font-weight: 700;
  line-height: 1;
  color: var(--gold-500);
  transition: transform 220ms var(--ease);
}
.page-faq .detail-stack details[open] summary::after{ transform: rotate(45deg); }
.page-faq .detail-stack summary:hover{ color: var(--gold-300); }
.page-faq .detail-stack summary:focus-visible{
  outline: 2px solid var(--gold-500);
  outline-offset: -2px;
}
.page-faq .detail-stack details p{
  margin: 0;
  padding: 0 20px 20px;
  max-width: 52ch;
  font-size: var(--fs-14);
  line-height: 1.85;
  color: rgba(244,241,234,.72);
}

/* ---------- 战队档案色块 ---------- */
.page-faq .team-block{
  position: relative;
  padding: clamp(24px, 4vw, 40px);
  border-radius: var(--faq-radius);
  border: 1px solid rgba(242,160,60,.24);
  background: linear-gradient(155deg, rgba(59,38,80,.94), rgba(18,22,31,.96) 70%);
  overflow: hidden;
}
.page-faq .team-block::before{
  content: "";
  position: absolute;
  top: -80px;
  right: -60px;
  width: 240px;
  height: 240px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(242,160,60,.22), transparent 68%);
  pointer-events: none;
}
.page-faq .team-points{
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 18px;
  position: relative;
}
.page-faq .team-points li{
  padding-top: 16px;
  border-top: 1px solid rgba(242,160,60,.22);
}
.page-faq .team-points li:first-child{ padding-top: 0; border-top: 0; }
.page-faq .team-points h3{
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-size: var(--fs-16);
  font-weight: 800;
  color: var(--gold-300);
}
.page-faq .team-points p{
  margin: 0;
  max-width: 46ch;
  font-size: var(--fs-14);
  line-height: 1.85;
  color: rgba(244,241,234,.76);
}

/* ---------- 联系区 ---------- */
.page-faq .reach-grid{
  display: grid;
  gap: 18px;
}
.page-faq .reach-panel,
.page-faq .contact-card{
  padding: 22px;
  border: 1px solid var(--faq-line);
  border-radius: var(--radius-md);
  background: var(--faq-panel);
}
.page-faq .reach-title{
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-size: var(--fs-16);
  font-weight: 800;
  color: var(--gold-300);
}
.page-faq .reach-list{
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}
.page-faq .reach-list li{
  position: relative;
  padding-left: 20px;
  font-size: var(--fs-14);
  line-height: 1.8;
  color: rgba(244,241,234,.76);
}
.page-faq .reach-list li::before{
  content: "";
  position: absolute;
  left: 0;
  top: .72em;
  width: 8px;
  height: 8px;
  border-radius: 2px;
  background: var(--gold-500);
}
.page-faq .contact-list{
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 16px;
}
.page-faq .contact-list li{
  display: grid;
  gap: 4px;
  padding-top: 14px;
  border-top: 1px solid rgba(42,50,66,.8);
}
.page-faq .contact-list li:first-child{ padding-top: 0; border-top: 0; }
.page-faq .contact-key{
  font-size: var(--fs-12);
  letter-spacing: .12em;
  color: var(--muted);
}
.page-faq .contact-val{
  font-size: var(--fs-16);
  font-weight: 700;
  line-height: 1.5;
  color: var(--paper);
  word-break: break-word;
}
.page-faq .contact-val.mono,
.page-faq .mono{
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
}
.page-faq .contact-note{
  font-size: var(--fs-12);
  line-height: 1.7;
  color: var(--volt-400);
}
.page-faq .contact-actions{
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 20px;
}
.page-faq .contact-actions .btn{ text-decoration: none; }

/* ---------- 侧栏 ---------- */
.page-faq .faq-aside{
  display: grid;
  gap: 16px;
  align-content: start;
  min-width: 0;
}
.page-faq .quick-card{
  padding: 20px;
  border-radius: var(--radius-md);
  border: 1px solid rgba(79,195,247,.28);
  background: linear-gradient(170deg, rgba(27,111,191,.16), rgba(18,22,31,.92));
}
.page-faq .quick-list{
  list-style: none;
  margin: 12px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}
.page-faq .quick-list li{
  display: flex;
  gap: 10px;
  font-size: var(--fs-14);
  line-height: 1.7;
  color: rgba(244,241,234,.8);
}
.page-faq .quick-dot{
  flex: 0 0 auto;
  width: 6px;
  height: 6px;
  margin-top: .62em;
  border-radius: 50%;
  background: var(--volt-400);
}
.page-faq .aside-index{
  padding: 20px;
  border-radius: var(--radius-md);
  border: 1px solid var(--faq-line);
  background: var(--ink-800);
}
.page-faq .aside-title{
  margin: 0 0 12px;
  font-size: var(--fs-12);
  letter-spacing: .16em;
  color: var(--muted);
}
.page-faq .aside-index ol{
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
}
.page-faq .aside-index a{
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 9px 12px;
  border-radius: var(--radius-pill);
  font-size: var(--fs-14);
  color: rgba(244,241,234,.74);
  text-decoration: none;
  transition: background 200ms var(--ease), color 200ms var(--ease);
}
.page-faq .aside-index a:hover,
.page-faq .aside-index a:focus-visible{
  background: rgba(242,160,60,.12);
  color: var(--gold-300);
  outline: none;
}
.page-faq .idx-num{
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  color: var(--gold-700);
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px){
  .page-faq .cat-grid{ grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .page-faq .reach-grid{ grid-template-columns: repeat(2, minmax(0, 1fr)); align-items: start; }
  .page-faq .refresh-grid{ grid-template-columns: repeat(2, minmax(0, 1fr)); align-items: start; }
  .page-faq .team-points{ grid-template-columns: repeat(2, minmax(0, 1fr)); column-gap: 26px; }
}

@media (min-width: 768px){
  .page-faq .step{ grid-template-columns: 104px minmax(0, 1fr); gap: 24px; align-items: start; padding: 28px 0; }
  .page-faq .step-num{ position: sticky; top: calc(var(--header-h) + 20px); }
  .page-faq .team-points{ grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .page-faq .team-points li{ padding-top: 16px; border-top: 1px solid rgba(242,160,60,.22); }
  .page-faq .team-points li:first-child{ padding-top: 16px; border-top: 1px solid rgba(242,160,60,.22); }
}

@media (min-width: 900px){
  .page-faq .faq-hero-inner{
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: end;
    gap: 48px;
  }
  .page-faq .refresh-grid{
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 32px;
  }
}

@media (min-width: 1024px){
  .page-faq .faq-layout{
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
    gap: 64px;
  }
  .page-faq .faq-aside{
    position: sticky;
    top: calc(var(--header-h) + 28px);
  }
}

@media (prefers-reduced-motion: reduce){
  .page-faq .cat-card,
  .page-faq .zoom-frame img,
  .page-faq .filter-pill,
  .page-faq .detail-stack summary::after{
    transition: opacity 200ms linear;
    transform: none !important;
  }
  .page-faq .cat-card:hover{ transform: none; }
}
<<<END>>>