.page-faq{
  --faq-gap: clamp(18px, 3vw, 34px);
  --faq-radius: var(--yl-radius-lg);
  background: var(--yl-porcelain);
  color: var(--yl-ink);
  font-family: var(--yl-font-body);
  overflow-x: hidden;
}

/* ---- 首屏 ---- */
.page-faq .faq-hero{
  position: relative;
  padding: clamp(22px, 5vw, 46px) 0 clamp(34px, 6vw, 70px);
  color: var(--yl-porcelain);
  background:
    radial-gradient(110% 80% at 92% 6%, rgba(242,138,46,.34), transparent 62%),
    radial-gradient(90% 70% at 6% 96%, rgba(44,124,154,.55), transparent 60%),
    linear-gradient(158deg, var(--yl-deep) 0%, var(--yl-blue) 58%, var(--yl-mid) 100%);
  overflow: hidden;
}
.page-faq .faq-hero::after{
  content: "";
  position: absolute;
  inset: auto -8% -30% auto;
  width: min(520px, 70vw);
  height: min(520px, 70vw);
  background: repeating-linear-gradient(135deg, rgba(247,244,236,.13) 0 2px, transparent 2px 16px);
  border-radius: 50%;
  pointer-events: none;
}
.page-faq .faq-hero .container{ position: relative; z-index: 1; }
.page-faq .faq-hero .crumbs{ color: rgba(247,244,236,.72); margin-bottom: clamp(18px, 3vw, 30px); }
.page-faq .faq-hero .crumbs__item{ color: inherit; }
.page-faq .faq-hero .crumbs__item[aria-current="page"]{ color: var(--yl-orange-soft); }
.page-faq .faq-hero .eyebrow{
  display: inline-block;
  margin: 0 0 14px;
  padding: 5px 14px;
  border-radius: var(--yl-radius-pill);
  background: rgba(247,244,236,.14);
  color: var(--yl-orange-soft);
  font-size: 12px;
  letter-spacing: .14em;
  text-transform: uppercase;
}
.page-faq .faq-hero h1{
  margin: 0 0 16px;
  font-family: var(--yl-font-head);
  font-weight: 900;
  font-size: clamp(2rem, 6.2vw, 3.5rem);
  line-height: 1.14;
  letter-spacing: -.01em;
  max-width: 20ch;
}
.page-faq .faq-hero .lede{
  margin: 0 0 clamp(22px, 4vw, 34px);
  max-width: 56ch;
  font-size: clamp(15px, 1.7vw, 17px);
  line-height: 1.8;
  color: rgba(247,244,236,.88);
}
.page-faq .faq-cats{
  display: grid;
  grid-template-columns: repeat(2, minmax(0,1fr));
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.page-faq .faq-cats__link{
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 12px 16px;
  border-radius: var(--yl-radius-pill);
  background: rgba(247,244,236,.10);
  border: 1px solid rgba(247,244,236,.22);
  color: var(--yl-porcelain);
  text-decoration: none;
  transition: background .2s ease, transform .2s ease, border-color .2s ease;
}
.page-faq .faq-cats__link:hover,
.page-faq .faq-cats__link:focus-visible{
  background: rgba(242,138,46,.24);
  border-color: var(--yl-orange);
  transform: translateY(-2px);
}
.page-faq .faq-cats__num{
  font-family: var(--yl-font-mono);
  font-size: 15px;
  color: var(--yl-orange-soft);
}
.page-faq .faq-cats__name{
  font-size: 14px;
  font-weight: 700;
  letter-spacing: .02em;
}

/* ---- 索引 + 问答 ---- */
.page-faq .faq-body{ padding-top: clamp(30px, 5vw, 56px); }
.page-faq .faq-layout{
  display: grid;
  grid-template-columns: minmax(0,1fr);
  gap: var(--faq-gap);
}
.page-faq .faq-index__card{
  padding: 22px;
  border-radius: var(--faq-radius);
  background: var(--yl-mist);
  box-shadow: var(--yl-shadow-soft);
}
.page-faq .faq-index__card .exhibit{
  margin: 0 0 14px;
  font-family: var(--yl-font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--yl-blue);
}
.page-faq .faq-index__list{
  margin: 0 0 18px;
  padding: 0;
  list-style: none;
  counter-reset: none;
}
.page-faq .faq-index__list li + li{ border-top: 1px solid rgba(20,92,122,.16); }
.page-faq .faq-index__list a{
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 11px 2px;
  color: var(--yl-deep);
  font-size: 15px;
  font-weight: 700;
  text-decoration: none;
}
.page-faq .faq-index__list a:hover,
.page-faq .faq-index__list a:focus-visible{ color: var(--yl-orange); }
.page-faq .faq-index__n{
  font-family: var(--yl-font-mono);
  font-size: 12px;
  color: var(--yl-mid);
}
.page-faq .faq-index__count{
  margin-left: auto;
  font-family: var(--yl-font-mono);
  font-size: 12px;
  color: var(--yl-blue);
  background: rgba(255,255,255,.72);
  border-radius: var(--yl-radius-pill);
  padding: 2px 9px;
}
.page-faq .faq-index__jump{
  display: grid;
  gap: 8px;
  padding-top: 16px;
  border-top: 1px solid rgba(20,92,122,.18);
}
.page-faq .faq-index__jump .quick-link{
  display: block;
  padding: 11px 16px;
  border-radius: var(--yl-radius-sm);
  background: rgba(255,255,255,.8);
  color: var(--yl-deep);
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
  transition: background .2s ease, color .2s ease;
}
.page-faq .faq-index__jump .quick-link--action{
  background: var(--yl-coral);
  color: #fff;
}
.page-faq .faq-index__jump .quick-link:hover,
.page-faq .faq-index__jump .quick-link:focus-visible{ background: var(--yl-orange); color: var(--yl-deep); }
.page-faq .faq-index__jump .quick-link--action:hover,
.page-faq .faq-index__jump .quick-link--action:focus-visible{ background: #c9483d; color: #fff; }

.page-faq .faq-qa{ display: grid; gap: clamp(26px, 4vw, 44px); min-width: 0; }
.page-faq .faq-group{
  scroll-margin-top: 96px;
  border-left: 4px solid var(--yl-orange);
  padding-left: clamp(14px, 2.4vw, 22px);
}
.page-faq .faq-group__head{ margin-bottom: 8px; }
.page-faq .faq-group__head .tag{ display: inline-block; margin-bottom: 10px; }
.page-faq .faq-group__head h2{
  margin: 0 0 6px;
  font-family: var(--yl-font-head);
  font-weight: 900;
  font-size: clamp(1.35rem, 3vw, 1.9rem);
  line-height: 1.24;
  color: var(--yl-deep);
}
.page-faq .faq-group__note{
  margin: 0 0 12px;
  font-size: 14px;
  letter-spacing: .02em;
  color: var(--yl-mid);
}
.page-faq .faq-item{ border-bottom: 1px solid rgba(20,33,43,.12); }
.page-faq .faq-item summary{
  display: flex;
  align-items: flex-start;
  gap: 12px;
  position: relative;
  padding: 15px 38px 15px 0;
  cursor: pointer;
  list-style: none;
  font-family: var(--yl-font-head);
  font-weight: 700;
  font-size: clamp(15px, 2.2vw, 16.5px);
  line-height: 1.55;
  color: var(--yl-ink);
}
.page-faq .faq-item summary::-webkit-details-marker{ display: none; }
.page-faq .faq-item summary::after{
  content: "+";
  position: absolute;
  right: 6px;
  top: 12px;
  font-family: var(--yl-font-mono);
  font-size: 20px;
  line-height: 1;
  color: var(--yl-orange);
}
.page-faq .faq-item[open] summary::after{ content: "–"; }
.page-faq .faq-item[open] summary{ color: var(--yl-blue); }
.page-faq .faq-num{
  flex: 0 0 auto;
  padding-top: 3px;
  font-family: var(--yl-font-mono);
  font-size: 12px;
  color: var(--yl-mid);
}
.page-faq .faq-a{
  padding: 0 0 18px 30px;
  color: rgba(20,33,43,.82);
  font-size: 15px;
  line-height: 1.8;
}
.page-faq .faq-a p{ margin: 0; }
.page-faq .faq-a a{ color: var(--yl-coral); font-weight: 700; text-decoration: underline; }

/* ---- 检索专题 ---- */
.page-faq .faq-search-topic{
  background: var(--yl-porcelain);
  border-top: 1px solid rgba(20,92,122,.14);
}
.page-faq .faq-search-topic__grid{
  display: grid;
  grid-template-columns: minmax(0,1fr);
  gap: clamp(22px, 4vw, 44px);
  align-items: center;
}
.page-faq .faq-search-topic__text .exhibit{
  margin: 0 0 12px;
  font-family: var(--yl-font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--yl-orange);
}
.page-faq .faq-search-topic__text h2{
  margin: 0 0 14px;
  font-family: var(--yl-font-head);
  font-weight: 900;
  font-size: clamp(1.5rem, 3.6vw, 2.35rem);
  line-height: 1.2;
  color: var(--yl-deep);
}
.page-faq .faq-search-topic__text > p{
  margin: 0 0 18px;
  font-size: 15.5px;
  line-height: 1.85;
  color: rgba(20,33,43,.84);
  max-width: 52ch;
}
.page-faq .faq-points{
  margin: 0 0 22px;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}
.page-faq .faq-points li{
  position: relative;
  padding-left: 20px;
  font-size: 14.5px;
  line-height: 1.7;
  color: rgba(20,33,43,.8);
}
.page-faq .faq-points li::before{
  content: "";
  position: absolute;
  left: 2px;
  top: 9px;
  width: 8px;
  height: 8px;
  border-radius: 2px;
  background: var(--yl-orange);
}
.page-faq .faq-points li strong{ color: var(--yl-blue); }
.page-faq .faq-points--tight{ margin-bottom: 18px; }

.page-faq .faq-figure{
  margin: 0;
  border-radius: var(--faq-radius);
  overflow: hidden;
  background: var(--yl-mist);
  box-shadow: var(--yl-shadow-soft);
}
.page-faq .faq-figure img{
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
}
.page-faq .faq-figure figcaption{
  padding: 12px 18px;
  font-size: 13px;
  letter-spacing: .03em;
  color: var(--yl-blue);
  background: rgba(255,255,255,.72);
}

/* ---- 检索示例 ---- */
.page-faq .faq-demo{
  display: grid;
  grid-template-columns: minmax(0,1fr);
  gap: 16px;
  margin-top: clamp(22px, 4vw, 36px);
}
.page-faq .faq-demo__pane{
  padding: 20px;
  border-radius: var(--faq-radius);
  background: var(--yl-mist);
  min-width: 0;
}
.page-faq .faq-demo__pane--miss{
  background: var(--yl-deep);
  color: var(--yl-porcelain);
}
.page-faq .faq-demo__label{
  margin: 0 0 12px;
  font-family: var(--yl-font-mono);
  font-size: 12px;
  letter-spacing: .14em;
  text-transform: uppercase;
  opacity: .8;
}
.page-faq .faq-demo__field{
  margin: 0 0 14px;
  padding: 11px 16px;
  border-radius: var(--yl-radius-pill);
  background: #fff;
  border: 2px solid var(--yl-orange);
  font-size: 15px;
  font-weight: 700;
  color: var(--yl-ink);
}
.page-faq .faq-demo__field--empty{
  border-color: rgba(247,244,236,.4);
  background: rgba(247,244,236,.1);
  color: rgba(247,244,236,.86);
  font-weight: 400;
}
.page-faq .faq-demo__list{
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 8px;
}
.page-faq .faq-demo__list li{
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  border-radius: var(--yl-radius-sm);
  background: rgba(255,255,255,.86);
  font-size: 14px;
  color: var(--yl-ink);
}
.page-faq .faq-demo__list mark{
  background: var(--yl-orange-soft);
  color: var(--yl-deep);
  padding: 0 2px;
  border-radius: 3px;
}
.page-faq .faq-demo__hint{
  margin: 0 0 12px;
  font-size: 14px;
  line-height: 1.7;
  color: rgba(247,244,236,.86);
}
.page-faq .faq-demo__paths{ display: grid; gap: 8px; }
.page-faq .faq-demo__paths .quick-link{
  display: block;
  padding: 11px 16px;
  border-radius: var(--yl-radius-sm);
  background: rgba(247,244,236,.14);
  border: 1px solid rgba(247,244,236,.3);
  color: var(--yl-porcelain);
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
}
.page-faq .faq-demo__paths .quick-link--action{
  background: var(--yl-coral);
  border-color: var(--yl-coral);
  color: #fff;
}
.page-faq .faq-demo__paths .quick-link:hover,
.page-faq .faq-demo__paths .quick-link:focus-visible{ background: var(--yl-orange); color: var(--yl-deep); }

/* ---- 设备选择 ---- */
.page-faq .faq-device__head{ max-width: 62ch; margin-bottom: clamp(18px, 3vw, 28px); }
.page-faq .faq-device__head .exhibit{
  margin: 0 0 12px;
  font-family: var(--yl-font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--yl-blue);
}
.page-faq .faq-device__head h2{
  margin: 0 0 12px;
  font-family: var(--yl-font-head);
  font-weight: 900;
  font-size: clamp(1.5rem, 3.6vw, 2.35rem);
  line-height: 1.2;
  color: var(--yl-deep);
}
.page-faq .faq-device__head p{
  margin: 0;
  font-size: 15.5px;
  line-height: 1.85;
  color: rgba(20,33,43,.84);
}
.page-faq .faq-device__band{
  margin: 0 0 clamp(22px, 4vw, 36px);
  padding: 14px 18px;
  border-radius: var(--faq-radius);
  background: rgba(255,255,255,.72);
  box-shadow: var(--yl-shadow-soft);
}
.page-faq .faq-device__grid{
  display: grid;
  grid-template-columns: minmax(0,1fr);
  gap: clamp(20px, 3.4vw, 36px);
  align-items: start;
}
.page-faq .faq-steps{
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 14px;
}
.page-faq .faq-steps li{
  display: grid;
  grid-template-columns: 42px minmax(0,1fr);
  gap: 14px;
  align-items: start;
  padding: 16px 18px;
  border-radius: var(--yl-radius-md);
  background: rgba(255,255,255,.82);
  border-left: 3px solid var(--yl-orange);
}
.page-faq .faq-steps__n{
  font-family: var(--yl-font-mono);
  font-size: 20px;
  font-weight: 700;
  color: var(--yl-blue);
  line-height: 1.2;
}
.page-faq .faq-steps strong{
  display: block;
  margin-bottom: 4px;
  font-family: var(--yl-font-head);
  font-size: 15.5px;
  color: var(--yl-deep);
}
.page-faq .faq-steps p{
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: rgba(20,33,43,.78);
}

/* ---- 订阅 / 联系 双块 ---- */
.page-faq .faq-after__grid{
  display: grid;
  grid-template-columns: minmax(0,1fr);
  gap: var(--faq-gap);
}
.page-faq .faq-after__block{
  padding: clamp(20px, 3.4vw, 32px);
  border-radius: var(--faq-radius);
  min-width: 0;
}
.page-faq .faq-after__block--subscribe{
  background: var(--yl-mist);
}
.page-faq .faq-after__block--contact{
  background: #fff;
  border: 1px solid rgba(20,92,122,.18);
}
.page-faq .faq-after__block .exhibit{
  margin: 0 0 12px;
  font-family: var(--yl-font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--yl-blue);
}
.page-faq .faq-after__block h2{
  margin: 0 0 12px;
  font-family: var(--yl-font-head);
  font-weight: 900;
  font-size: clamp(1.3rem, 3vw, 1.75rem);
  line-height: 1.25;
  color: var(--yl-deep);
}
.page-faq .faq-after__block > p{
  margin: 0 0 16px;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(20,33,43,.82);
}
.page-faq .faq-contact{
  margin: 0 0 14px;
  display: grid;
  gap: 10px;
}
.page-faq .faq-contact > div{
  display: grid;
  grid-template-columns: 84px minmax(0,1fr);
  gap: 10px;
  padding-bottom: 10px;
  border-bottom: 1px dashed rgba(20,92,122,.24);
}
.page-faq .faq-contact dt{
  font-size: 13px;
  letter-spacing: .04em;
  color: var(--yl-mid);
}
.page-faq .faq-contact dd{
  margin: 0;
  font-size: 14.5px;
  font-weight: 700;
  color: var(--yl-ink);
  word-break: break-word;
}
.page-faq .faq-contact__note{
  font-size: 13px;
  line-height: 1.7;
  color: var(--yl-mid);
}
.page-faq .faq-after__block .btn{ display: inline-block; text-decoration: none; }

/* ---- 延伸入口 ---- */
.page-faq .faq-more__inner{
  padding: clamp(20px, 3.4vw, 30px);
  border-radius: var(--faq-radius);
  background: var(--yl-deep);
  color: var(--yl-porcelain);
}
.page-faq .faq-more__inner h2{
  margin: 0 0 16px;
  font-family: var(--yl-font-head);
  font-weight: 900;
  font-size: clamp(1.2rem, 2.8vw, 1.55rem);
  color: var(--yl-porcelain);
}
.page-faq .faq-more__links{
  display: grid;
  grid-template-columns: minmax(0,1fr);
  gap: 10px;
}
.page-faq .faq-more__links .quick-link{
  display: block;
  padding: 12px 18px;
  border-radius: var(--yl-radius-pill);
  background: rgba(247,244,236,.1);
  border: 1px solid rgba(247,244,236,.26);
  color: var(--yl-porcelain);
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
  transition: background .2s ease, color .2s ease, transform .2s ease;
}
.page-faq .faq-more__links .quick-link:hover,
.page-faq .faq-more__links .quick-link:focus-visible{
  background: var(--yl-orange);
  border-color: var(--yl-orange);
  color: var(--yl-deep);
  transform: translateY(-2px);
}

@media (min-width: 640px){
  .page-faq .faq-cats{ grid-template-columns: repeat(3, minmax(0,1fr)); }
  .page-faq .faq-demo{ grid-template-columns: repeat(2, minmax(0,1fr)); }
  .page-faq .faq-more__links{ grid-template-columns: repeat(2, minmax(0,1fr)); }
}

@media (min-width: 900px){
  .page-faq .faq-layout{
    grid-template-columns: 288px minmax(0,1fr);
    gap: clamp(28px, 4vw, 52px);
    align-items: start;
  }
  .page-faq .faq-index__card{
    position: sticky;
    top: 96px;
  }
  .page-faq .faq-search-topic__grid{
    grid-template-columns: minmax(0,1.05fr) minmax(0,1fr);
  }
  .page-faq .faq-device__grid{
    grid-template-columns: minmax(0,1.02fr) minmax(0,1fr);
  }
  .page-faq .faq-after__grid{
    grid-template-columns: repeat(2, minmax(0,1fr));
  }
}

@media (min-width: 1120px){
  .page-faq .faq-cats{ grid-template-columns: repeat(6, minmax(0,1fr)); }
  .page-faq .faq-more__links{ grid-template-columns: repeat(4, minmax(0,1fr)); }
}
<<<END>>>