.page-faq{
  --zone: var(--cold);
  --faq-rail-w: 236px;
  --faq-cut: 16px;
  --faq-tint: rgba(46,139,255,.14);
  background:
    radial-gradient(1100px 460px at 82% -12%, rgba(46,139,255,.18), transparent 68%),
    var(--ink-900);
  color: var(--text);
  font-family: var(--font-body);
  padding: 0 0 64px;
}
.page-faq .page-shell{
  padding-top: 18px;
}
.page-faq .breadcrumb{
  margin: 0 0 4px;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero{
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
  padding: 26px 0 30px;
}
.page-faq .faq-hero::after{
  content: "";
  position: absolute;
  top: -34px;
  right: -16%;
  width: 58%;
  height: 122%;
  background: linear-gradient(120deg, rgba(46,139,255,.24), rgba(108,75,255,.06));
  clip-path: polygon(16% 0, 100% 0, 84% 100%, 0 100%);
  pointer-events: none;
}
.page-faq .faq-hero__eyebrow{
  position: relative;
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: var(--fs-13);
  letter-spacing: .16em;
  color: var(--zone);
}
.page-faq .faq-hero__title{
  position: relative;
  margin: 0 0 16px;
  max-width: 20em;
  font-size: var(--fs-34);
  font-weight: 800;
  line-height: 1.22;
  letter-spacing: -.02em;
  color: var(--white);
}
.page-faq .faq-hero__lead{
  position: relative;
  margin: 0 0 22px;
  max-width: 44em;
  font-size: var(--fs-16);
  line-height: 1.85;
  color: var(--text);
}
.page-faq .faq-hero__stats{
  position: relative;
  display: flex;
  flex-wrap: wrap;
  gap: 14px 28px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.page-faq .faq-hero__stat{
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding-left: 12px;
  border-left: 2px solid var(--zone);
}
.page-faq .faq-hero__num{
  font-family: var(--font-mono);
  font-size: var(--fs-22);
  letter-spacing: .04em;
  color: var(--white);
}
.page-faq .faq-hero__label{
  font-size: var(--fs-13);
  color: var(--muted);
}

/* ---------- 骨架 ---------- */
.page-faq .faq-layout{
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 32px;
  padding-top: 34px;
}
.page-faq .faq-main{
  min-width: 0;
}

/* ---------- 左侧编号索引 ---------- */
.page-faq .faq-rail{
  padding: 16px 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(180deg, var(--panel), rgba(18,34,77,.35));
}
.page-faq .faq-rail__title{
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: .18em;
  color: var(--muted);
}
.page-faq .faq-rail__list{
  margin: 0 0 12px;
  padding: 0;
  list-style: none;
}
.page-faq .faq-rail__item + .faq-rail__item{
  border-top: 1px solid rgba(29,58,122,.6);
}
.page-faq .faq-rail__link{
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 10px 8px;
  border-left: 2px solid transparent;
  color: var(--muted);
  font-size: var(--fs-13);
  text-decoration: none;
  transition: color .2s var(--ease), background .2s var(--ease), border-color .2s var(--ease);
}
.page-faq .faq-rail__link:hover,
.page-faq .faq-rail__link:focus-visible{
  color: var(--white);
  border-left-color: var(--zone);
  background: var(--faq-tint);
}
.page-faq .faq-rail__num{
  font-family: var(--font-mono);
  font-size: var(--fs-16);
  letter-spacing: .04em;
  color: var(--zone);
}
.page-faq .faq-rail__label{
  font-weight: 700;
}
.page-faq .faq-rail__note{
  margin: 0;
  padding-top: 10px;
  border-top: 1px solid rgba(29,58,122,.6);
  font-size: var(--fs-12);
  line-height: 1.7;
  color: var(--muted);
}

/* ---------- 章节 ---------- */
.page-faq .faq-section{
  padding: 6px 0 10px;
  scroll-margin-top: 96px;
}
.page-faq .section__lead{
  max-width: 46em;
  color: var(--text);
  line-height: 1.85;
}
.page-faq .faq-rule{
  height: 2px;
  margin: 34px 0 30px;
  background: linear-gradient(90deg, var(--zone), rgba(46,139,255,.15) 55%, transparent);
  transform: skewY(-1.4deg);
  opacity: .75;
}

/* ---------- 图 ---------- */
.page-faq .faq-figure{
  margin: 22px 0 24px;
}
.page-faq .faq-figure__img{
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  object-fit: cover;
  background: var(--panel);
}
.page-faq .faq-figure__cap{
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: .04em;
  color: var(--muted);
}

/* ---------- 编号步骤 ---------- */
.page-faq .faq-steps{
  counter-reset: faqstep;
  margin: 22px 0 6px;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 12px;
}
.page-faq .faq-step{
  counter-increment: faqstep;
  position: relative;
  padding: 16px 16px 16px 62px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
}
.page-faq .faq-step::before{
  content: counter(faqstep, decimal-leading-zero);
  position: absolute;
  left: 16px;
  top: 15px;
  font-family: var(--font-mono);
  font-size: var(--fs-22);
  letter-spacing: .04em;
  color: var(--orange);
}
.page-faq .faq-step__title{
  display: block;
  margin-bottom: 5px;
  font-size: var(--fs-16);
  font-weight: 800;
  color: var(--white);
}
.page-faq .faq-step__text{
  display: block;
  font-size: var(--fs-16);
  line-height: 1.75;
  color: var(--muted);
}

/* ---------- 主题卡 ---------- */
.page-faq .faq-topics{
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
  margin: 20px 0 0;
  padding: 0;
  list-style: none;
}
.page-faq .faq-topic{
  min-width: 0;
}
.page-faq .faq-topic__link{
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 8px;
  height: 100%;
  padding: 18px 46px 18px 18px;
  background: linear-gradient(160deg, rgba(46,139,255,.16), var(--panel) 62%);
  box-shadow: inset 0 0 0 1px var(--line);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--faq-cut)), calc(100% - var(--faq-cut)) 100%, 0 100%);
  color: var(--text);
  text-decoration: none;
  transition: transform .2s var(--ease), box-shadow .2s var(--ease), background .2s var(--ease);
}
.page-faq .faq-topic__link:hover,
.page-faq .faq-topic__link:focus-visible{
  transform: translateY(-3px);
  background: linear-gradient(160deg, rgba(46,139,255,.3), var(--panel) 66%);
  box-shadow: inset 0 0 0 1px var(--zone);
}
.page-faq .faq-topic__title{
  font-size: var(--fs-18);
  font-weight: 800;
  letter-spacing: -.01em;
  color: var(--white);
}
.page-faq .faq-topic__desc{
  font-size: var(--fs-13);
  line-height: 1.75;
  color: var(--muted);
}
.page-faq .faq-topic__meta{
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: .04em;
  color: var(--zone);
}
.page-faq .faq-topic__arrow{
  position: absolute;
  right: 18px;
  top: 18px;
  font-family: var(--font-mono);
  font-size: var(--fs-18);
  color: var(--zone);
  transition: transform .2s var(--ease);
}
.page-faq .faq-topic__link:hover .faq-topic__arrow{
  transform: translateX(4px);
}

/* ---------- 路径图 ---------- */
.page-faq .faq-path{
  margin: 22px 0 24px;
  padding: 14px 10px 6px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(10,22,51,.92), var(--panel));
  overflow-x: auto;
}
.page-faq .faq-path svg{
  display: block;
  width: 100%;
  min-width: 720px;
  height: auto;
}
.page-faq .faq-path__line{
  stroke: rgba(46,139,255,.6);
  stroke-width: 2;
  stroke-dasharray: 7 9;
}
.page-faq .faq-path__hit{
  fill: rgba(0,0,0,0);
}
.page-faq .faq-path__dot{
  fill: var(--ink-900);
  stroke: var(--zone);
  stroke-width: 2.5;
  transition: fill .2s var(--ease), stroke .2s var(--ease);
}
.page-faq .faq-path__idx{
  font-family: var(--font-mono);
  font-size: 20px;
  letter-spacing: .04em;
  fill: var(--white);
  text-anchor: middle;
}
.page-faq .faq-path__cap{
  font-family: var(--font-body);
  font-size: 18px;
  font-weight: 700;
  fill: var(--text);
  text-anchor: middle;
}
.page-faq .faq-path__tip{
  font-family: var(--font-body);
  font-size: 14px;
  fill: var(--muted);
  text-anchor: middle;
  opacity: .62;
  transition: opacity .2s var(--ease), fill .2s var(--ease);
}
.page-faq .faq-path__node:hover .faq-path__dot{
  fill: rgba(46,139,255,.32);
  stroke: var(--green);
}
.page-faq .faq-path__node:hover .faq-path__tip{
  opacity: 1;
  fill: var(--green);
}

/* ---------- 问答 ---------- */
.page-faq .faq-q-list{
  margin: 22px 0 0;
}
.page-faq .faq-q{
  margin-bottom: 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(18,34,77,.5);
  overflow: hidden;
}
.page-faq .faq-q[open]{
  background: rgba(18,34,77,.86);
  border-color: rgba(46,139,255,.5);
}
.page-faq .faq-q__summary{
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 15px 16px;
  cursor: pointer;
  list-style: none;
  font-size: var(--fs-16);
  font-weight: 700;
  line-height: 1.6;
  color: var(--white);
}
.page-faq .faq-q__summary::-webkit-details-marker{
  display: none;
}
.page-faq .faq-q__summary::after{
  content: "+";
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: var(--fs-22);
  line-height: 1;
  color: var(--zone);
}
.page-faq .faq-q[open] .faq-q__summary::after{
  content: "–";
}
.page-faq .faq-q__summary:focus-visible{
  outline: 2px solid var(--zone);
  outline-offset: -2px;
}
.page-faq .faq-q__mark{
  flex: none;
  padding: 2px 7px;
  border: 1px solid currentColor;
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: .06em;
  color: var(--zone);
}
.page-faq .faq-q__body{
  padding: 0 16px 18px 16px;
  font-size: var(--fs-16);
  line-height: 1.85;
  color: var(--muted);
}
.page-faq .faq-q__body p{
  margin: 0;
}

/* ---------- 权益清单条目 ---------- */
.page-faq .faq-checklist{
  margin: 22px 0 14px;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 12px;
}
.page-faq .faq-checklist__item{
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 6px;
  padding: 16px;
  border: 1px solid var(--line);
  border-left: 3px solid var(--zone);
  border-radius: var(--radius);
  background: var(--panel);
}
.page-faq .faq-checklist__num{
  font-family: var(--font-mono);
  font-size: var(--fs-13);
  letter-spacing: .06em;
  color: var(--orange);
}
.page-faq .faq-checklist__label{
  font-size: var(--fs-18);
  font-weight: 800;
  color: var(--white);
}
.page-faq .faq-checklist__note{
  font-size: var(--fs-16);
  line-height: 1.75;
  color: var(--muted);
}
.page-faq .faq-note{
  margin: 0 0 6px;
  font-size: var(--fs-16);
  line-height: 1.85;
  color: var(--muted);
}
.page-faq .faq-note a{
  color: var(--zone);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.page-faq .faq-note a:hover,
.page-faq .faq-note a:focus-visible{
  color: var(--white);
}

/* ---------- 求助清单与联系 ---------- */
.page-faq .faq-help-list{
  margin: 20px 0 24px;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}
.page-faq .faq-help-list__item{
  position: relative;
  padding: 12px 14px 12px 40px;
  border: 1px dashed var(--line);
  border-radius: var(--radius);
  font-size: var(--fs-16);
  line-height: 1.7;
  color: var(--text);
}
.page-faq .faq-help-list__item::before{
  content: "";
  position: absolute;
  left: 16px;
  top: 20px;
  width: 10px;
  height: 10px;
  background: var(--zone);
  clip-path: polygon(0 0, 100% 0, 100% 100%);
}
.page-faq .faq-contact{
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(150deg, rgba(46,139,255,.18), var(--panel));
}
.page-faq .faq-contact__item{
  display: flex;
  flex-wrap: wrap;
  gap: 4px 14px;
  margin: 0 0 10px;
  font-size: var(--fs-16);
  line-height: 1.7;
}
.page-faq .faq-contact__item:last-child{
  margin-bottom: 0;
}
.page-faq .faq-contact__label{
  flex: none;
  min-width: 5em;
  font-family: var(--font-mono);
  font-size: var(--fs-13);
  letter-spacing: .06em;
  color: var(--zone);
}
.page-faq .faq-contact__value{
  color: var(--white);
}
.page-faq .faq-actions{
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

/* ---------- 断点 ---------- */
@media (min-width: 640px){
  .page-faq .faq-hero__title{
    font-size: var(--fs-48);
  }
  .page-faq .faq-hero__lead{
    font-size: var(--fs-18);
  }
  .page-faq .faq-topics{
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-faq .faq-checklist__item{
    grid-template-columns: 7em minmax(0, 1fr);
    align-items: baseline;
    column-gap: 16px;
  }
  .page-faq .faq-checklist__num{
    grid-column: 1;
  }
  .page-faq .faq-checklist__label{
    grid-column: 2;
  }
  .page-faq .faq-checklist__note{
    grid-column: 2;
  }
}

@media (min-width: 1000px){
  .page-faq .faq-layout{
    grid-template-columns: var(--faq-rail-w) minmax(0, 1fr);
    gap: 52px;
    padding-top: 42px;
  }
  .page-faq .faq-rail{
    position: sticky;
    top: 104px;
    align-self: start;
  }
  .page-faq .faq-section{
    scroll-margin-top: 108px;
  }
}

@media (min-width: 1200px){
  .page-faq .faq-topics{
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}
<<<END>>>