.page-faq{
  --faq-accent: var(--cinnabar);
  --faq-shadow: rgba(201,162,74,.32);
  background: var(--ink);
  color: var(--bone);
  overflow-x: hidden;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero{
  position: relative;
  padding: calc(var(--header-h) + 36px) 0 48px;
  background:
    radial-gradient(120% 90% at 82% 0%, rgba(197,58,46,.20), transparent 62%),
    radial-gradient(90% 80% at 0% 100%, rgba(110,156,138,.16), transparent 66%),
    var(--ink);
  border-bottom: 1px solid var(--line);
  overflow: hidden;
}
.page-faq .faq-hero::before{
  content:"";
  position:absolute;
  inset: 0;
  background-image: radial-gradient(rgba(244,239,230,.10) 1px, transparent 1px);
  background-size: 22px 22px;
  opacity:.45;
  pointer-events:none;
}
.page-faq .faq-hero .wrap{ position: relative; }

.page-faq .breadcrumb{
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--stone);
  margin-bottom: 22px;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  align-items: center;
}
.page-faq .breadcrumb a{
  color: var(--bone);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .18s ease, border-color .18s ease;
}
.page-faq .breadcrumb a:hover,
.page-faq .breadcrumb a:focus-visible{
  color: var(--gold);
  border-bottom-color: var(--gold);
}

.page-faq h1{
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(30px, 7.6vw, 58px);
  line-height: 1.14;
  letter-spacing: .01em;
  margin: 0 0 18px;
  max-width: 20em;
  color: var(--bone);
}

.page-faq .faq-lede{
  font-size: 15px;
  line-height: 1.85;
  color: rgba(244,239,230,.80);
  max-width: 62ch;
  margin: 0;
}

.page-faq .faq-jump{
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 26px;
}
.page-faq .faq-jump-link{
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding: 8px 12px;
  font-size: 13px;
  color: var(--bone);
  text-decoration: none;
  border: 1px solid var(--line-strong);
  border-radius: 2px;
  background: rgba(244,239,230,.04);
  transition: background .18s ease, border-color .18s ease, transform .18s ease;
}
.page-faq .faq-jump-link .mono{
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--gold);
  transition: color .18s ease;
}
.page-faq .faq-jump-link:hover,
.page-faq .faq-jump-link:focus-visible{
  background: var(--cinnabar);
  border-color: var(--cinnabar);
  transform: translateY(-2px);
  outline: none;
}
.page-faq .faq-jump-link:hover .mono,
.page-faq .faq-jump-link:focus-visible .mono{ color: var(--bone); }

.page-faq .faq-stats{
  list-style: none;
  margin: 30px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0,1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}
.page-faq .faq-stats li{
  background: var(--ink-2);
  padding: 14px 14px 16px;
}
.page-faq .faq-stat-num{
  display: block;
  font-family: var(--font-mono);
  font-size: 22px;
  line-height: 1.1;
  color: var(--gold);
  letter-spacing: .02em;
}
.page-faq .faq-stat-label{
  display: block;
  margin-top: 6px;
  font-size: 12px;
  line-height: 1.5;
  color: var(--stone);
}

/* ---------- 正文：索引 + 答案 ---------- */
.page-faq .faq-body{
  padding: 40px 0 56px;
  background: var(--ink);
}
.page-faq .faq-layout{ display: block; }

.page-faq .faq-index{
  background: var(--bone);
  color: var(--char);
  border: 2px solid var(--char);
  box-shadow: 5px 5px 0 0 var(--faq-shadow);
  padding: 18px 16px 14px;
  margin-bottom: 34px;
}
.page-faq .faq-index-title{
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 10px;
  font-family: var(--font-display);
  font-size: 17px;
  letter-spacing: .06em;
  margin: 0 0 14px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--char);
}
.page-faq .faq-index-title .mono{
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--cinnabar);
  letter-spacing: .1em;
}
.page-faq .faq-index-list{
  list-style: none;
  margin: 0;
  padding: 0;
}
.page-faq .faq-index-group{ margin-bottom: 14px; }
.page-faq .faq-index-group:last-child{ margin-bottom: 0; }
.page-faq .faq-index-group-label{
  display: flex;
  align-items: baseline;
  gap: 8px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .04em;
  color: var(--char);
  margin-bottom: 5px;
}
.page-faq .faq-index-group-label .mono{
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--cinnabar);
  letter-spacing: .08em;
}
.page-faq .faq-index-group a{
  display: block;
  padding: 5px 8px;
  font-size: 13px;
  line-height: 1.5;
  color: rgba(23,26,28,.78);
  text-decoration: none;
  border-left: 2px solid transparent;
  transition: background .16s ease, border-color .16s ease, color .16s ease;
}
.page-faq .faq-index-group a:hover,
.page-faq .faq-index-group a:focus-visible{
  background: rgba(197,58,46,.10);
  border-left-color: var(--cinnabar);
  color: var(--char);
  outline: none;
}

.page-faq .faq-group{
  margin-bottom: 46px;
  scroll-margin-top: calc(var(--header-h) + 20px);
}
.page-faq .faq-group:last-child{ margin-bottom: 0; }
.page-faq .faq-group--red{ --faq-accent: var(--cinnabar); }
.page-faq .faq-group--clay{ --faq-accent: var(--clay); }
.page-faq .faq-group--celadon{ --faq-accent: var(--celadon); }
.page-faq .faq-group--moss{ --faq-accent: var(--moss); }
.page-faq .faq-group--gold{ --faq-accent: var(--gold); }

.page-faq .group-head{
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding-top: 14px;
  border-top: 2px solid var(--faq-accent);
  margin-bottom: 16px;
}
.page-faq .group-num{
  flex: none;
  font-family: var(--font-mono);
  font-size: 24px;
  line-height: 1;
  padding-top: 3px;
  color: var(--faq-accent);
  letter-spacing: .04em;
}
.page-faq .group-title{
  font-family: var(--font-display);
  font-size: 20px;
  line-height: 1.4;
  font-weight: 700;
  margin: 0 0 8px;
  color: var(--bone);
}
.page-faq .group-desc{
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--stone);
  max-width: 56ch;
}

.page-faq .faq-figure{
  margin: 0 0 18px;
  border: 2px solid var(--char);
  box-shadow: 6px 6px 0 0 var(--faq-shadow);
  background: var(--ink-2);
}
.page-faq .faq-figure img{
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
}
.page-faq .faq-figure figcaption{
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .05em;
  line-height: 1.6;
  color: var(--stone);
  padding: 8px 12px;
  border-top: 1px solid var(--line);
}

.page-faq .qa{
  border: 1px solid var(--line);
  border-left: 3px solid var(--faq-accent);
  background: rgba(18,40,61,.70);
  margin-top: 10px;
  transition: background .18s ease, border-color .18s ease;
}
.page-faq .qa[open]{
  background: var(--ink-2);
  border-color: var(--line-strong);
  border-left-color: var(--faq-accent);
}
.page-faq .qa summary{
  list-style: none;
  cursor: pointer;
  position: relative;
  display: flex;
  gap: 10px;
  align-items: baseline;
  padding: 14px 44px 14px 14px;
  font-size: 15px;
  line-height: 1.6;
  color: var(--bone);
  transition: background .16s ease;
}
.page-faq .qa summary::-webkit-details-marker{ display: none; }
.page-faq .qa summary::after{
  content: "+";
  position: absolute;
  right: 14px;
  top: 11px;
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1;
  color: var(--faq-accent);
}
.page-faq .qa[open] summary::after{ content: "–"; }
.page-faq .qa summary:hover{ background: rgba(244,239,230,.05); }
.page-faq .qa summary:focus-visible{
  outline: 2px solid var(--gold);
  outline-offset: -2px;
}
.page-faq .qa-num{
  flex: none;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--gold);
}
.page-faq .qa-a{
  padding: 12px 16px 16px;
  font-size: 14px;
  line-height: 1.85;
  color: rgba(244,239,230,.82);
  border-top: 1px dashed var(--line);
}
.page-faq .qa-a p{ margin: 0 0 10px; }
.page-faq .qa-a p:last-child{ margin-bottom: 0; }
.page-faq .qa-a ol{
  margin: 6px 0 10px;
  padding-left: 1.25em;
}
.page-faq .qa-a li{ margin-bottom: 6px; }
.page-faq .qa-a a{
  color: var(--gold);
  text-decoration: underline;
  text-underline-offset: 2px;
}
.page-faq .qa-a a:hover,
.page-faq .qa-a a:focus-visible{ color: var(--bone); }

/* ---------- 联系支持 ---------- */
.page-faq .faq-support{
  background: var(--bone);
  color: var(--char);
  padding: 46px 0 56px;
  border-top: 4px solid var(--char);
}
.page-faq .faq-support .eyebrow{ color: var(--cinnabar); }
.page-faq .faq-support-title{
  font-family: var(--font-display);
  font-size: clamp(24px, 5.4vw, 36px);
  line-height: 1.3;
  margin: 0 0 14px;
  color: var(--char);
}
.page-faq .faq-support-text{
  font-size: 14.5px;
  line-height: 1.85;
  color: rgba(23,26,28,.80);
  margin: 0 0 24px;
  max-width: 64ch;
}
.page-faq .faq-contact-card{
  background: #FFFDF8;
  border: 2px solid var(--char);
  box-shadow: 6px 6px 0 0 var(--char);
  padding: 18px 16px;
}
.page-faq .faq-contact-list{
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}
.page-faq .faq-contact-item{
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px 10px;
  padding-bottom: 10px;
  border-bottom: 1px dashed rgba(23,26,28,.20);
}
.page-faq .faq-contact-item:last-child{
  border-bottom: 0;
  padding-bottom: 0;
}
.page-faq .faq-contact-key{
  flex: none;
  min-width: 46px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--cinnabar);
}
.page-faq .faq-contact-value{
  font-size: 14.5px;
  line-height: 1.6;
  color: var(--char);
  word-break: break-word;
}
.page-faq .copy-btn.faq-copy{
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .06em;
  padding: 3px 9px;
  color: var(--char);
  background: transparent;
  border: 1px solid var(--char);
  cursor: pointer;
  transition: background .16s ease, color .16s ease;
}
.page-faq .copy-btn.faq-copy:hover,
.page-faq .copy-btn.faq-copy:focus-visible{
  background: var(--char);
  color: var(--bone);
  outline: none;
}
.page-faq .faq-note{
  margin: 16px 0 0;
  padding-left: 12px;
  border-left: 3px solid var(--gold);
  font-size: 12.5px;
  line-height: 1.75;
  color: rgba(23,26,28,.70);
}

.page-faq .faq-links{
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 28px;
}
.page-faq .faq-link{
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  font-size: 14px;
  color: var(--char);
  text-decoration: none;
  background: #FFFDF8;
  border: 2px solid var(--char);
  box-shadow: 4px 4px 0 0 var(--char);
  transition: transform .18s ease, box-shadow .18s ease, background .18s ease;
}
.page-faq .faq-link .mono{
  font-family: var(--font-mono);
  color: var(--cinnabar);
}
.page-faq .faq-link:hover,
.page-faq .faq-link:focus-visible{
  transform: translate(2px,2px);
  box-shadow: 2px 2px 0 0 var(--char);
  background: var(--bone);
  outline: none;
}

/* ---------- 断点 ---------- */
@media (min-width: 720px){
  .page-faq .faq-hero{ padding: calc(var(--header-h) + 56px) 0 60px; }
  .page-faq .faq-lede{ font-size: 16px; }
  .page-faq .faq-stats{ grid-template-columns: repeat(4, minmax(0,1fr)); }
  .page-faq .faq-stat-num{ font-size: 26px; }
  .page-faq .group-num{ font-size: 30px; }
  .page-faq .group-title{ font-size: 24px; }
  .page-faq .qa summary{ font-size: 16px; padding: 16px 48px 16px 16px; }
  .page-faq .qa-a{ font-size: 15px; padding: 14px 20px 18px; }
  .page-faq .faq-support-grid{
    display: grid;
    grid-template-columns: minmax(0,1.15fr) minmax(0,.85fr);
    gap: 32px;
    align-items: start;
  }
  .page-faq .faq-links{ margin-top: 44px; }
}

@media (min-width: 1024px){
  .page-faq .faq-body{ padding: 56px 0 72px; }
  .page-faq .faq-layout{
    display: grid;
    grid-template-columns: 284px minmax(0,1fr);
    gap: 44px;
    align-items: start;
  }
  .page-faq .faq-index{
    position: sticky;
    top: calc(var(--header-h) + 18px);
    max-height: calc(100vh - var(--header-h) - 36px);
    overflow-y: auto;
    margin-bottom: 0;
  }
  .page-faq .group-title{ font-size: 26px; }
  .page-faq .group-desc{ font-size: 14.5px; }
}