.page-faq{
  --faq-accent: var(--blue);
  background: radial-gradient(ellipse at 85% 8%, rgba(0,168,255,.12), transparent 52%), var(--bg-deep);
  color: var(--ink-body);
}
.page-faq .container{
  box-sizing: border-box;
}
.page-faq a{
  color: var(--blue);
  text-decoration: none;
}
.page-faq a:hover{
  color: var(--green);
}

/* ========== 英雄区 ========== */
.page-faq .faq-hero{
  padding: 32px 0 28px;
  border-bottom: 1px solid var(--line-dim);
  background: linear-gradient(135deg, rgba(0,168,255,.07), transparent 62%);
}
.page-faq .faq-hero-inner{
  display: grid;
  gap: 28px;
  align-items: center;
}
.page-faq .faq-hero-copy{
  min-width: 0;
}
.page-faq .breadcrumb{
  margin-bottom: 18px;
}
.page-faq .faq-kicker{
  margin: 0 0 10px;
  font-family: var(--font-data);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .18em;
  color: var(--blue);
  text-transform: uppercase;
}
.page-faq .faq-hero h1{
  margin: 0 0 16px;
  font-size: clamp(26px, 5.4vw, 46px);
  font-weight: 900;
  line-height: 1.22;
  letter-spacing: -.02em;
  color: var(--ink-light);
}
.page-faq .faq-hero-lead{
  margin: 0 0 24px;
  max-width: 640px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink-body);
}
.page-faq .faq-hero-meta{
  display: flex;
  flex-wrap: wrap;
  gap: 10px 16px;
  align-items: center;
}
.page-faq .faq-hero-meta .data-row{
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.page-faq .faq-hero-meta .data-label{
  font-family: var(--font-data);
  font-size: 12px;
  color: var(--ink-muted);
}
.page-faq .faq-hero-figure{
  position: relative;
  width: min(300px, 78vw);
  margin: 0 auto;
}
.page-faq .faq-hero-img{
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1/1;
  object-fit: cover;
  border: 1px solid var(--line-blue);
  clip-path: polygon(0 0, calc(100% - 18px) 0, 100% 18px, 100% 100%, 18px 100%, 0 calc(100% - 18px));
}
.page-faq .faq-hero-badge{
  position: absolute;
  right: -6px;
  top: 22px;
  z-index: 2;
  padding: 10px 8px;
  background: var(--green);
  color: #04100A;
  font-family: var(--font-data);
  font-size: 12px;
  font-weight: 700;
  line-height: 1.2;
  text-align: center;
  letter-spacing: .06em;
  box-shadow: 0 0 0 3px rgba(57,255,20,.22);
}
.page-faq .faq-hero-figure .media-caption{
  margin-top: 12px;
  text-align: center;
}

/* ========== 分类导航 ========== */
.page-faq .faq-layout{
  padding: 36px 0 8px;
}
.page-faq .faq-tabs{
  margin-bottom: 24px;
}
.page-faq .faq-tabs-inner{
  box-sizing: border-box;
}
.page-faq .faq-tabs .faq-tab{
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  border: 1px solid var(--line-dim);
  background: var(--bg-card-deep);
  white-space: nowrap;
  transition: border-color .2s ease, background .2s ease, color .2s ease;
}
.page-faq .faq-tab-num{
  font-family: var(--font-data);
  font-size: 12px;
  font-weight: 700;
  color: var(--blue);
  letter-spacing: .04em;
}
.page-faq .faq-tab-label{
  font-size: 14px;
  font-weight: 700;
  color: var(--ink-body);
  transition: color .2s ease;
}
.page-faq .faq-tab:hover .faq-tab-label,
.page-faq .faq-tab:focus-visible .faq-tab-label{
  color: var(--ink-light);
}
.page-faq .faq-tab:hover .faq-tab-num,
.page-faq .faq-tab:focus-visible .faq-tab-num{
  color: var(--green);
}
.page-faq .faq-tabs-inner{
  display: flex;
  gap: 10px;
  overflow-x: auto;
  padding-bottom: 6px;
  scrollbar-width: thin;
  scrollbar-color: var(--line-blue) transparent;
}

/* ========== 内容区块 ========== */
.page-faq .faq-sections{
  min-width: 0;
}
.page-faq .faq-block{
  --faq-accent: var(--blue);
  position: relative;
  margin: 0 0 52px;
  padding: 26px 0 0;
}
.page-faq .faq-block::before{
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 56px;
  height: 3px;
  background: linear-gradient(90deg, var(--faq-accent), transparent);
}
.page-faq .faq-block--data{
  --faq-accent: var(--green);
}
.page-faq .faq-block--dir{
  --faq-accent: var(--blue);
}
.page-faq .faq-block--app{
  --faq-accent: var(--green);
}
.page-faq .faq-block--contact{
  --faq-accent: var(--orange);
  border-left: 1px solid rgba(255,69,0,.28);
  padding-left: 16px;
}
.page-faq .faq-block-head{
  display: flex;
  align-items: flex-start;
  gap: 14px;
  margin-bottom: 18px;
}
.page-faq .faq-block-index{
  font-family: var(--font-data);
  font-size: 34px;
  font-weight: 700;
  line-height: 1;
  color: var(--faq-accent);
  letter-spacing: -.02em;
}
.page-faq .faq-block-head h2{
  margin: 0 0 6px;
  font-size: 22px;
  font-weight: 900;
  color: var(--ink-light);
}
.page-faq .faq-block-head p{
  margin: 0;
  font-size: 14px;
  line-height: 1.6;
  color: var(--ink-muted);
}

/* ========== 手风琴 ========== */
.page-faq .faq-accordion{
  border: 1px solid var(--line-dim);
  background: rgba(30,42,58,.5);
}
.page-faq .faq-item{
  border-bottom: 1px solid var(--line-dim);
}
.page-faq .faq-item:last-child{
  border-bottom: 0;
}
.page-faq .faq-item summary{
  position: relative;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 14px;
  list-style: none;
  cursor: pointer;
  font-size: 15px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--ink-body);
  background: transparent;
  transition: background .2s ease, color .2s ease;
}
.page-faq .faq-item summary::-webkit-details-marker{
  display: none;
}
.page-faq .faq-item summary:hover,
.page-faq .faq-item[open] summary{
  background: rgba(0,168,255,.06);
  color: var(--ink-light);
}
.page-faq .faq-q-mark{
  flex-shrink: 0;
  min-width: 34px;
  padding: 3px 5px;
  box-sizing: border-box;
  border: 1px solid var(--faq-accent);
  font-family: var(--font-data);
  font-size: 11px;
  font-weight: 700;
  text-align: center;
  color: var(--faq-accent);
  letter-spacing: .04em;
}
.page-faq .faq-q-title{
  flex: 1;
  min-width: 0;
}
.page-faq .faq-item summary::after{
  content: "+";
  flex-shrink: 0;
  font-family: var(--font-data);
  font-size: 20px;
  line-height: 1;
  color: var(--faq-accent);
  transition: color .2s ease, transform .2s ease;
}
.page-faq .faq-item[open] summary::after{
  content: "−";
  color: var(--green);
}
.page-faq .faq-a{
  padding: 2px 16px 20px;
}
.page-faq .faq-a p{
  margin: 0 0 12px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink-body);
}
.page-faq .faq-a p:last-child{
  margin-bottom: 0;
}
.page-faq .faq-a a{
  border-bottom: 1px solid rgba(0,168,255,.35);
  padding-bottom: 2px;
  transition: border-color .2s ease, color .2s ease;
}
.page-faq .faq-a a:hover{
  border-color: var(--green);
}

/* ========== 数据流程图 ========== */
.page-faq .faq-media{
  margin: 22px 0 0;
  padding: 16px;
  background: var(--bg-card-deep);
  border: 1px solid var(--line-dim);
}
.page-faq .faq-media-frame{
  overflow: hidden;
  aspect-ratio: 8/5;
  clip-path: polygon(0 0, calc(100% - 16px) 0, 100% 16px, 100% 100%, 0 100%);
}
.page-faq .faq-media-frame img{
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.page-faq .faq-media .media-caption{
  margin-top: 12px;
}

/* ========== 底部 CTA ========== */
.page-faq .faq-cta{
  margin-top: 28px;
  padding: 48px 0 60px;
  border-top: 1px solid var(--line-dim);
  background: linear-gradient(135deg, rgba(0,168,255,.08), transparent 46%), var(--bg-deep);
}
.page-faq .faq-cta-inner{
  display: grid;
  gap: 26px;
  justify-items: center;
  text-align: center;
}
.page-faq .faq-cta-copy h2{
  margin: 0 0 10px;
  font-size: 26px;
  font-weight: 900;
  color: var(--ink-light);
}
.page-faq .faq-cta-copy p{
  margin: 0;
  max-width: 560px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-body);
}
.page-faq .faq-cta-actions{
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  justify-content: center;
}

/* ========== 响应式增强 ========== */
@media (min-width: 640px){
  .page-faq .faq-hero-inner{
    grid-template-columns: 1fr 280px;
    gap: 36px;
  }
  .page-faq .faq-hero-figure{
    margin: 0 12px 0 0;
  }
  .page-faq .faq-tabs-inner{
    padding-left: 0;
    padding-right: 0;
  }
  .page-faq .faq-block{
    padding-left: 0;
  }
  .page-faq .faq-block--contact{
    padding-left: 20px;
  }
  .page-faq .faq-item summary{
    padding: 18px 18px;
  }
  .page-faq .faq-a{
    padding: 2px 18px 22px 64px;
  }
  .page-faq .faq-cta-inner{
    grid-template-columns: 1fr auto;
    justify-items: start;
    gap: 28px 36px;
    text-align: left;
    align-items: center;
  }
}

@media (min-width: 960px){
  .page-faq .faq-layout{
    padding-top: 48px;
  }
  .page-faq .faq-layout-inner{
    display: grid;
    grid-template-columns: 240px minmax(0, 1fr);
    gap: 48px;
    align-items: start;
  }
  .page-faq .faq-tabs{
    position: sticky;
    top: 24px;
    margin-bottom: 0;
  }
  .page-faq .faq-tabs-inner{
    flex-direction: column;
    align-items: stretch;
    gap: 8px;
    overflow: visible;
    padding-bottom: 0;
  }
  .page-faq .faq-tabs .faq-tab{
    justify-content: flex-start;
    padding: 14px 16px;
  }
  .page-faq .faq-block{
    margin-bottom: 60px;
  }
  .page-faq .faq-block-head h2{
    font-size: 24px;
  }
}
@media (prefers-reduced-motion: reduce){
  .page-faq .faq-tab,
  .page-faq .faq-item summary,
  .page-faq .faq-item summary::after{
    transition: none;
  }
}