.page-faq{
  --faq-side:220px;
  --faq-tile:88px;
  background-color:var(--ink);
  background-image:
    linear-gradient(to right, rgba(36,54,79,.32) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(36,54,79,.22) 1px, transparent 1px);
  background-size:var(--faq-tile) var(--faq-tile);
  background-position:center top;
  color:var(--text);
  padding-bottom:clamp(36px,5vw,72px);
}
.page-faq .faq-breadcrumb-wrap{
  padding-top:clamp(14px,2vw,22px);
}

/* 首屏 */
.page-faq .faq-hero{
  border-bottom:1px solid var(--line);
  padding-block:clamp(18px,3vw,30px) clamp(30px,4.5vw,58px);
  background:
    radial-gradient(120% 90% at 88% -10%, rgba(40,224,232,.14), transparent 62%),
    radial-gradient(80% 70% at 0% 100%, rgba(255,181,71,.07), transparent 70%),
    linear-gradient(180deg, rgba(15,27,46,.82), rgba(8,17,31,.15));
}
.page-faq .faq-hero-inner{
  display:grid;
  gap:clamp(22px,3.4vw,40px);
}
.page-faq .faq-kicker{
  margin:0;
  font-family:var(--mono);
  font-size:.72rem;
  letter-spacing:.22em;
  color:var(--cyan);
  text-transform:uppercase;
}
.page-faq .faq-title{
  margin:14px 0 0;
  font-family:var(--sans);
  font-size:clamp(1.95rem,6.2vw,3.4rem);
  font-weight:700;
  line-height:1.08;
  letter-spacing:.01em;
  font-stretch:condensed;
  text-wrap:balance;
}
.page-faq .faq-lede{
  margin:16px 0 0;
  max-width:48ch;
  color:var(--muted);
  font-size:clamp(.94rem,1.5vw,1.0625rem);
  line-height:1.85;
}
.page-faq .faq-hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  margin-top:24px;
}
.page-faq .faq-hero-media{
  margin:0;
  border:1px solid var(--line);
  background:var(--panel-2);
  box-shadow:0 0 0 1px rgba(40,224,232,.12), 0 30px 60px -46px rgba(40,224,232,.8);
}
.page-faq .faq-hero-media img,
.page-faq .faq-record-media img{
  display:block;
  width:100%;
  height:100%;
  max-width:100%;
  object-fit:cover;
}

/* 三步索引 */
.page-faq .faq-steps{
  list-style:none;
  margin:0;
  padding:0;
  display:grid;
  gap:0;
  border-top:1px solid var(--line);
}
.page-faq .faq-step{
  display:grid;
  grid-template-columns:2.4rem minmax(0,1fr);
  gap:12px;
  align-items:start;
  padding:14px 0;
  border-bottom:1px solid var(--line);
}
.page-faq .step-no{
  font-family:var(--mono);
  font-size:1.05rem;
  font-weight:700;
  letter-spacing:.08em;
  color:var(--cyan);
  line-height:1.3;
}
.page-faq .faq-step h3{
  margin:0;
  font-size:.98rem;
  font-weight:700;
  letter-spacing:.02em;
}
.page-faq .faq-step p{
  margin:5px 0 0;
  color:var(--muted);
  font-size:.9rem;
  line-height:1.72;
}

/* 主体两栏 */
.page-faq .faq-body{
  display:grid;
  gap:0;
  padding-top:clamp(8px,2vw,18px);
}

.page-faq .faq-toc{
  padding:18px 0 6px;
  border-bottom:1px solid var(--line);
}
.page-faq .faq-toc-title{
  margin:0 0 10px;
  font-family:var(--mono);
  font-size:.72rem;
  letter-spacing:.2em;
  color:var(--haze);
  text-transform:uppercase;
}
.page-faq .faq-toc-list{
  list-style:none;
  margin:0;
  padding:0;
  display:grid;
  gap:2px;
}
.page-faq .faq-toc-list a{
  display:flex;
  gap:10px;
  align-items:baseline;
  padding:8px 0;
  color:var(--muted);
  text-decoration:none;
  font-size:.9rem;
  border-bottom:1px solid rgba(36,54,79,.45);
  transition:color 180ms var(--ease), padding-left 180ms var(--ease);
}
.page-faq .faq-toc-list a:hover,
.page-faq .faq-toc-list a:focus-visible{
  color:var(--cyan);
  padding-left:4px;
}
.page-faq .toc-no{
  font-family:var(--mono);
  font-size:.7rem;
  letter-spacing:.1em;
  color:var(--haze);
}

/* 章节 */
.page-faq .faq-section{
  padding-block:clamp(26px,4vw,46px);
  border-bottom:1px solid var(--line);
}
.page-faq .faq-section:last-of-type{
  border-bottom:0;
}
.page-faq .sec-kicker{
  margin:0 0 10px;
  font-family:var(--mono);
  font-size:.72rem;
  letter-spacing:.2em;
  color:var(--cyan);
  text-transform:uppercase;
}
.page-faq .sec-title{
  margin:0;
  font-size:clamp(1.32rem,3.4vw,1.9rem);
  font-weight:700;
  line-height:1.28;
  letter-spacing:.01em;
  text-wrap:balance;
}
.page-faq .sec-lede{
  margin:14px 0 0;
  max-width:64ch;
  color:var(--muted);
  font-size:.96rem;
  line-height:1.85;
}
.page-faq .faq-p{
  margin:14px 0 0;
  max-width:64ch;
  color:var(--muted);
  font-size:.94rem;
  line-height:1.85;
}
.page-faq .faq-link{
  color:var(--cyan);
  text-decoration:none;
  border-bottom:1px solid rgba(40,224,232,.45);
  transition:border-color 180ms var(--ease), color 180ms var(--ease);
}
.page-faq .faq-link:hover,
.page-faq .faq-link:focus-visible{
  color:var(--text);
  border-bottom-color:var(--amber);
}

/* 规则行 */
.page-faq .rule-grid{
  margin-top:20px;
  border-top:1px solid var(--line);
}
.page-faq .rule-row{
  display:grid;
  gap:6px;
  padding:15px 0;
  border-bottom:1px solid var(--line);
}
.page-faq .rule-name{
  margin:0;
  display:flex;
  gap:10px;
  align-items:baseline;
  font-size:.98rem;
  font-weight:700;
}
.page-faq .rule-name .mono{
  color:var(--amber);
  font-size:.76rem;
  letter-spacing:.12em;
}
.page-faq .rule-row p{
  margin:0;
  color:var(--muted);
  font-size:.92rem;
  line-height:1.8;
}

/* 时间轴卡片 */
.page-faq .log-list{
  margin-top:20px;
  display:grid;
  gap:1px;
  background:var(--line);
  border:1px solid var(--line);
}
.page-faq .log-item{
  background:var(--panel-2);
  padding:16px clamp(14px,2vw,22px);
  display:grid;
  gap:8px;
}
.page-faq .log-meta{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-family:var(--mono);
  font-size:.72rem;
  letter-spacing:.08em;
  color:var(--haze);
}
.page-faq .log-title{
  margin:0;
  font-size:.98rem;
  font-weight:700;
  line-height:1.5;
  color:var(--text);
}
.page-faq .log-desc{
  margin:0;
  color:var(--muted);
  font-size:.9rem;
  line-height:1.75;
}

/* 字段说明 */
.page-faq .field-list{
  list-style:none;
  margin:20px 0 0;
  padding:0;
  display:grid;
  gap:1px;
  background:var(--line);
  border:1px solid var(--line);
}
.page-faq .field-list li{
  background:var(--panel);
  padding:14px 16px;
}
.page-faq .field-name{
  display:block;
  margin-bottom:6px;
  font-family:var(--mono);
  font-size:.76rem;
  letter-spacing:.12em;
  color:var(--cyan);
}
.page-faq .field-list p{
  margin:0;
  color:var(--muted);
  font-size:.88rem;
  line-height:1.72;
}

/* 配图 */
.page-faq .faq-record-media{
  margin:22px 0 0;
  border:1px solid var(--line);
  background:var(--panel-2);
}
.page-faq .faq-figure-cap{
  display:block;
  padding:10px 14px;
  border-top:1px solid var(--line);
  font-family:var(--mono);
  font-size:.72rem;
  letter-spacing:.1em;
  color:var(--haze);
}

/* 厂商能力 */
.page-faq .cap-grid{
  list-style:none;
  margin:20px 0 0;
  padding:0;
  display:grid;
  gap:12px;
}
.page-faq .cap-item{
  padding:11px 0 11px 14px;
  border-left:2px solid var(--cyan);
  background:linear-gradient(90deg, rgba(40,224,232,.08), transparent 72%);
}
.page-faq .cap-item h3{
  margin:0 0 6px;
  font-size:.95rem;
  font-weight:700;
}
.page-faq .cap-item p{
  margin:0;
  color:var(--muted);
  font-size:.88rem;
  line-height:1.72;
}

/* 折叠组 */
.page-faq .accordion{
  margin-top:18px;
  border-top:1px solid var(--line);
}
.page-faq .accordion-item{
  border-bottom:1px solid var(--line);
}
.page-faq .accordion-trigger{
  width:100%;
  display:flex;
  align-items:baseline;
  gap:12px;
  padding:15px 0;
  background:none;
  border:0;
  color:var(--text);
  font-family:var(--sans);
  font-size:.97rem;
  font-weight:600;
  line-height:1.55;
  text-align:left;
  cursor:pointer;
  transition:color 180ms var(--ease);
}
.page-faq .accordion-trigger:hover,
.page-faq .accordion-trigger:focus-visible{
  color:var(--cyan);
}
.page-faq .accordion-trigger .accordion-index{
  color:var(--haze);
  font-size:.74rem;
  letter-spacing:.12em;
  transition:color 180ms var(--ease);
}
.page-faq .accordion-trigger[aria-expanded="true"] .accordion-index{
  color:var(--cyan);
}
.page-faq .accordion-mark{
  margin-left:auto;
  flex:none;
  color:var(--cyan);
  font-family:var(--mono);
  font-size:.9rem;
  line-height:1;
  transition:transform 220ms var(--ease);
}
.page-faq .accordion-trigger[aria-expanded="true"] .accordion-mark{
  transform:rotate(90deg);
}
.page-faq .accordion-panel{
  padding:0 0 16px;
}
.page-faq .accordion-panel[hidden]{
  display:none;
}
.page-faq .accordion-panel p{
  margin:0 0 10px;
  max-width:66ch;
  color:var(--muted);
  font-size:.92rem;
  line-height:1.82;
}
.page-faq .accordion-panel p:last-child{
  margin-bottom:0;
}

/* 联系块 */
.page-faq .faq-contact{
  margin-top:22px;
  padding:18px clamp(14px,2vw,22px);
  display:grid;
  gap:10px;
  justify-items:start;
  border:1px solid var(--line);
  border-left:3px solid var(--amber);
  background:var(--panel);
}
.page-faq .contact-line{
  margin:0;
  display:flex;
  flex-wrap:wrap;
  gap:4px 12px;
  font-size:.92rem;
  line-height:1.7;
  color:var(--muted);
}
.page-faq .contact-label{
  min-width:5.5rem;
  font-family:var(--mono);
  font-size:.72rem;
  letter-spacing:.12em;
  color:var(--haze);
  padding-top:2px;
}
.page-faq .contact-value{
  color:var(--text);
  word-break:break-word;
}

/* 底部快捷入口 */
.page-faq .faq-quick{
  margin-top:26px;
  padding-top:clamp(16px,2.6vw,24px);
  border-top:2px solid var(--line);
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px;
}
.page-faq .faq-quick p{
  margin:0 auto 0 0;
  font-size:.94rem;
  color:var(--muted);
}

@media (min-width:560px){
  .page-faq .faq-toc-list{
    grid-template-columns:repeat(2,minmax(0,1fr));
    gap:0 22px;
  }
}

@media (min-width:720px){
  .page-faq .faq-step{
    grid-template-columns:3.4rem minmax(0,1fr);
    gap:20px;
    align-items:center;
    padding:18px 0;
  }
  .page-faq .step-no{
    font-size:1.55rem;
  }
  .page-faq .cap-grid{
    grid-template-columns:repeat(2,minmax(0,1fr));
  }
}

@media (min-width:860px){
  .page-faq .faq-hero-inner{
    grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);
    align-items:center;
  }
  .page-faq .faq-steps{
    grid-column:1 / -1;
    grid-template-columns:repeat(3,minmax(0,1fr));
  }
  .page-faq .faq-step{
    grid-template-columns:2.6rem minmax(0,1fr);
    align-items:start;
    padding:18px 20px;
    border-bottom:0;
    border-right:1px solid var(--line);
  }
  .page-faq .faq-step:first-child{
    padding-left:0;
  }
  .page-faq .faq-step:last-child{
    border-right:0;
  }
  .page-faq .rule-row{
    grid-template-columns:11rem minmax(0,1fr);
    gap:6px 22px;
  }
  .page-faq .field-list{
    grid-template-columns:repeat(2,minmax(0,1fr));
  }
}

@media (min-width:940px){
  .page-faq .faq-body{
    grid-template-columns:var(--faq-side) minmax(0,1fr);
    gap:clamp(28px,4vw,56px);
    padding-top:clamp(22px,3vw,38px);
  }
  .page-faq .faq-toc{
    position:sticky;
    top:calc(var(--bar-h) + 24px);
    align-self:start;
    padding:6px clamp(18px,2.2vw,28px) 24px 0;
    border-bottom:0;
    border-right:1px solid var(--line);
  }
  .page-faq .faq-toc-list{
    grid-template-columns:minmax(0,1fr);
  }
  .page-faq .faq-toc-list a{
    border-bottom:1px solid rgba(36,54,79,.35);
  }
}

@media (prefers-reduced-motion:reduce){
  .page-faq .faq-toc-list a,
  .page-faq .accordion-trigger,
  .page-faq .accordion-mark,
  .page-faq .faq-link{
    transition:none;
  }
  .page-faq .accordion-trigger[aria-expanded="true"] .accordion-mark{
    transform:none;
  }
}
<<<END>>>