.page-faq{
  --faq-navy: #0B2A5B;
  --faq-green: #35E0A1;
  --faq-gold: #F2B441;
  --faq-ink: #0A0E17;
  --faq-paper: #F5F7FA;
  --faq-mist: #E6FAF3;
  --faq-rock: #1D3557;
  --faq-text: #1A2233;
  --faq-hint: #6B7280;
  --faq-cut: 3px;
  --faq-mono: 'Roboto Mono', 'SF Mono', Consolas, monospace;
  background:
    linear-gradient(90deg, transparent 0, transparent 47px, rgba(11,42,91,0.035) 47px, rgba(11,42,91,0.035) 48px, transparent 48px, transparent 95px, rgba(11,42,91,0.03) 95px, rgba(11,42,91,0.03) 96px, transparent 96px),
    var(--faq-paper);
  color: var(--faq-text);
  font-family: 'Source Han Sans SC', 'PingFang SC', 'STHeiti', sans-serif;
  line-height: 1.7;
  min-height: 100vh;
}
.page-faq__shell{
  width: min(75rem, 100% - 2rem);
  margin-inline: auto;
  padding: 1.25rem 0 4rem;
}
.page-faq__breadcrumbs{
  margin-bottom: 1.25rem;
}
.page-faq__hero{
  display: grid;
  gap: 1.5rem;
  padding: 1.75rem 1.5rem 2rem;
  background: var(--faq-ink);
  clip-path: polygon(0 0, calc(100% - 24px) 0, 100% 24px, 100% 100%, 24px 100%, 0 calc(100% - 24px));
  position: relative;
  overflow: hidden;
}
.page-faq__hero::after{
  content: "";
  position: absolute;
  right: -2.5rem;
  bottom: -4rem;
  width: 16rem;
  height: 16rem;
  background:
    linear-gradient(135deg, transparent 45%, rgba(53,224,161,0.5) 46%, rgba(53,224,161,0.5) 48%, transparent 49%),
    linear-gradient(45deg, transparent 45%, rgba(242,180,65,0.35) 46%, rgba(242,180,65,0.35) 48%, transparent 49%);
  background-size: 2.25rem 2.25rem;
  transform: rotate(8deg);
  pointer-events: none;
}
.page-faq__hero-copy{
  position: relative;
  z-index: 1;
}
.page-faq__kicker{
  color: var(--faq-green);
  font-family: var(--faq-mono);
  font-size: 0.8125rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  margin-bottom: 0.75rem;
}
.page-faq__title{
  font-family: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  font-weight: 900;
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  line-height: 1.18;
  letter-spacing: -0.02em;
  color: #FFFFFF;
  margin: 0 0 0.875rem;
  max-width: 46rem;
}
.page-faq__lead{
  font-size: 0.9375rem;
  color: rgba(255,255,255,0.78);
  max-width: 40rem;
  margin: 0;
}
.page-faq__lead b{
  color: var(--faq-green);
  font-weight: 600;
}
.page-faq__hero-panel{
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
  background: rgba(255,255,255,0.07);
  border: 1px solid rgba(255,255,255,0.14);
  padding: 1rem;
  backdrop-filter: blur(4px);
  position: relative;
  z-index: 1;
}
.page-faq__hero-stat{
  display: flex;
  flex-direction: column;
  padding: 0.625rem 0.875rem;
  background: rgba(11,42,91,0.6);
  clip-path: polygon(0 0, calc(100% - 8px) 0, 100% 8px, 100% 100%, 0 100%);
}
.page-faq__hero-stat--wide{
  grid-column: 1 / -1;
  background: rgba(53,224,161,0.12);
  border: 1px solid rgba(53,224,161,0.35);
}
.page-faq__hero-number{
  font-family: var(--faq-mono);
  font-size: 1.375rem;
  font-weight: 700;
  color: #FFFFFF;
  letter-spacing: -0.01em;
  line-height: 1.2;
}
.page-faq__hero-stat--wide .page-faq__hero-number{
  color: var(--faq-green);
  font-size: 1.125rem;
}
.page-faq__hero-label{
  font-size: 0.75rem;
  color: rgba(255,255,255,0.6);
  letter-spacing: 0.05em;
}
.page-faq__layout{
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.75rem;
  margin-top: 2rem;
}

/* ===== 左侧分类索引 ===== */
.page-faq__index{
  background: var(--faq-navy);
  color: #FFFFFF;
  padding: 1.5rem 1.25rem;
  align-self: start;
  clip-path: polygon(0 0, calc(100% - 14px) 0, 100% 14px, 100% 100%, 0 100%);
  position: relative;
}
.page-faq__index-head{
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.75rem;
  border-bottom: 1px solid rgba(255,255,255,0.16);
  padding-bottom: 0.875rem;
  margin-bottom: 0.875rem;
}
.page-faq__index-title{
  font-family: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  font-size: 1.125rem;
  font-weight: 800;
  letter-spacing: -0.01em;
  margin: 0;
}
.page-faq__index-note{
  font-size: 0.75rem;
  color: rgba(255,255,255,0.55);
  margin: 0;
  font-family: var(--faq-mono);
  letter-spacing: 0.08em;
}
.page-faq__index-list{
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.5rem;
}
.page-faq__index-link{
  display: flex;
  align-items: center;
  gap: 0.875rem;
  text-decoration: none;
  color: rgba(255,255,255,0.88);
  padding: 0.625rem 0.625rem 0.625rem 0.75rem;
  background: rgba(255,255,255,0.05);
  clip-path: polygon(0 0, calc(100% - 8px) 0, 100% 8px, 100% 100%, 0 100%);
  transition: background 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}
.page-faq__index-link:hover,
.page-faq__index-link:focus-visible{
  background: rgba(53,224,161,0.16);
  outline: none;
  box-shadow: inset 0 0 0 1px var(--faq-green);
  transform: translateY(-2px);
}
.page-faq__index-icon{
  font-family: var(--faq-mono);
  font-size: 0.75rem;
  color: var(--faq-green);
  border: 1px solid rgba(53,224,161,0.4);
  padding: 0.125rem 0.3125rem;
  line-height: 1.4;
}
.page-faq__index-text{
  display: flex;
  flex-direction: column;
  min-width: 0;
}
.page-faq__index-name{
  font-weight: 600;
  font-size: 0.9375rem;
  line-height: 1.3;
}
.page-faq__index-count{
  font-size: 0.6875rem;
  font-family: var(--faq-mono);
  color: rgba(255,255,255,0.55);
}
.page-faq__index-foot{
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  margin-top: 1rem;
  padding-top: 0.75rem;
  border-top: 1px solid rgba(255,255,255,0.14);
}
.page-faq__index-meta{
  font-size: 0.75rem;
  color: rgba(255,255,255,0.6);
}
.page-faq__index-meta b{
  color: var(--faq-gold);
  font-family: var(--faq-mono);
  font-size: 1rem;
}

/* ===== 搜索框 ===== */
.page-faq__search-wrap{
  position: relative;
  margin-bottom: 1.875rem;
}
.page-faq__search-label{
  font-family: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--faq-hint);
  display: block;
  margin-bottom: 0.375rem;
}
.page-faq__search{
  width: 100%;
  box-sizing: border-box;
  font-family: 'Source Han Sans SC', 'PingFang SC', 'STHeiti', sans-serif;
  font-size: 0.9375rem;
  color: var(--faq-text);
  background: #FFFFFF;
  border: 2px solid var(--faq-navy);
  padding: 0.875rem 3rem 0.875rem 1rem;
  clip-path: polygon(0 0, calc(100% - 16px) 0, 100% 16px, 100% 100%, 0 100%);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
.page-faq__search:focus{
  outline: none;
  border-color: var(--faq-green);
  box-shadow: 0 0 0 3px rgba(53,224,161,0.3);
}
.page-faq__search::placeholder{
  color: #9AA3B2;
}
.page-faq__search-icon{
  position: absolute;
  right: 1.25rem;
  bottom: 0.9rem;
  font-size: 1.25rem;
  color: var(--faq-navy);
  pointer-events: none;
}

/* ===== 分组区 ===== */
.page-faq__group{
  margin-bottom: 2.5rem;
}
.page-faq__group-head{
  margin-bottom: 1rem;
  padding-left: 0.5rem;
  border-left: 4px solid var(--faq-green);
}
.page-faq__group-title{
  font-family: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  font-size: 1.375rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--faq-navy);
  margin: 0 0 0.25rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}
.page-faq__group-num{
  font-family: var(--faq-mono);
  font-size: 0.875rem;
  color: var(--faq-gold);
  background: var(--faq-ink);
  padding: 0.125rem 0.5rem;
  line-height: 1.6;
}
.page-faq__group-desc{
  font-size: 0.8125rem;
  color: var(--faq-hint);
  margin: 0;
}
.page-faq__qa-list{
  display: grid;
  gap: 0.75rem;
}

/* ===== 问答卡片 ===== */
.page-faq__qa{
  background: #FFFFFF;
  border: 1px solid #E2E8F0;
  clip-path: polygon(0 0, calc(100% - 12px) 0, 100% 12px, 100% 100%, 0 100%);
  transition: border-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}
.page-faq__qa:hover{
  border-color: var(--faq-green);
  transform: translateY(-2px);
  box-shadow: 0 10px 25px rgba(10,14,23,0.08);
}
.page-faq__qa[open]{
  border-color: var(--faq-navy);
  background: linear-gradient(135deg, #FFFFFF 0%, var(--faq-mist) 100%);
}
.page-faq__q{
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 0.875rem;
  padding: 1.125rem 1.25rem;
  cursor: pointer;
  list-style: none;
  user-select: none;
}
.page-faq__q::-webkit-details-marker{
  display: none;
}
.page-faq__q-mark{
  font-family: var(--faq-mono);
  font-weight: 700;
  font-size: 0.875rem;
  color: var(--faq-navy);
  background: var(--faq-paper);
  border: 1px solid var(--faq-navy);
  width: 1.875rem;
  height: 1.875rem;
  display: grid;
  place-items: center;
  line-height: 1;
}
.page-faq__q-text{
  font-family: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  font-weight: 700;
  font-size: 0.9875rem;
  line-height: 1.45;
  color: var(--faq-text);
}
.page-faq__q-toggle{
  position: relative;
  width: 1.25rem;
  height: 1.25rem;
  flex: 0 0 auto;
}
.page-faq__q-toggle::before,
.page-faq__q-toggle::after{
  content: "";
  position: absolute;
  background: var(--faq-navy);
  transition: transform 0.25s ease;
}
.page-faq__q-toggle::before{
  width: 1.25rem;
  height: 2px;
  top: 50%;
  left: 0;
  transform: translateY(-50%);
}
.page-faq__q-toggle::after{
  width: 2px;
  height: 1.25rem;
  left: 50%;
  top: 0;
  transform: translateX(-50%);
}
.page-faq__qa[open] .page-faq__q-toggle::after{
  transform: translateX(-50%) rotate(90deg);
  opacity: 0;
}
.page-faq__qa[open] .page-faq__q{
  border-bottom: 1px dashed rgba(11,42,91,0.25);
}
.page-faq__a{
  padding: 0 1.25rem 1.25rem 3.75rem;
  font-size: 0.9375rem;
  color: var(--faq-text);
  line-height: 1.8;
}
.page-faq__a p{
  margin: 0.75rem 0 0;
}
.page-faq__a p:first-child{
  margin-top: 0.75rem;
}
.page-faq__a b{
  color: var(--faq-navy);
  font-weight: 600;
}

/* ===== 图片包围 ===== */
.page-faq__figure{
  margin: 1.25rem 0 0;
  background: var(--faq-ink);
  padding: 0.75rem;
  clip-path: polygon(0 0, calc(100% - 12px) 0, 100% 12px, 100% 100%, 0 100%);
}
.page-faq__figure--data{
  max-width: 480px;
}
.page-faq__figure--contact{
  max-width: 640px;
}
.page-faq__image{
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
}
.page-faq__figcaption{
  font-size: 0.75rem;
  color: rgba(255,255,255,0.65);
  padding-top: 0.5rem;
  text-align: right;
  font-family: var(--faq-mono);
  letter-spacing: 0.02em;
}

/* ===== 底部服务引导 ===== */
.page-faq__moreservice{
  margin-top: 2.5rem;
  background: linear-gradient(120deg, var(--faq-navy) 0%, var(--faq-rock) 100%);
  padding: 1.75rem 1.5rem;
  clip-path: polygon(0 0, calc(100% - 18px) 0, 100% 18px, 100% 100%, 18px 100%, 0 calc(100% - 18px));
  display: grid;
  gap: 1.25rem;
}
.page-faq__moreservice-copy{
  min-width: 0;
}
.page-faq__moreservice-title{
  font-family: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  font-size: 1.375rem;
  font-weight: 800;
  color: #FFFFFF;
  margin: 0 0 0.5rem;
}
.page-faq__moreservice-text{
  font-size: 0.875rem;
  color: rgba(255,255,255,0.72);
  margin: 0;
  max-width: 30rem;
}
.page-faq__moreservice-actions{
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: center;
}
.page-faq__moreservice-actions .btn-ghost{
  color: #FFFFFF;
  border-color: rgba(255,255,255,0.6);
}
.page-faq__moreservice-actions .btn-ghost:hover{
  border-color: var(--faq-green);
  color: var(--faq-green);
}
.page-faq__moreservice-actions .btn-primary{
  background: var(--faq-green);
  color: var(--faq-ink);
}

/* ===== 移动端禁用点击穿透的辅助 ===== */
.page-faq__qa[open] .page-faq__q{
  position: relative;
}

/* ===== 媒体查询：平板及以上 ===== */
@media (min-width: 720px){
  .page-faq__hero{
    grid-template-columns: 1.6fr 1fr;
    align-items: stretch;
    padding: 2.25rem 2.5rem 2.5rem;
  }
  .page-faq__layout{
    grid-template-columns: 15rem minmax(0, 1fr);
    gap: 2rem;
    margin-top: 2.5rem;
  }
  .page-faq__index{
    position: sticky;
    top: calc(var(--header-height, 6.25rem) + 1rem);
    max-height: calc(100vh - var(--header-height, 6.25rem) - 2rem);
    overflow: auto;
  }
  .page-faq__q-text{
    font-size: 1rem;
  }
  .page-faq__a{
    font-size: 0.96875rem;
  }
  .page-faq__moreservice{
    grid-template-columns: 1fr auto;
    align-items: center;
    padding: 2rem 2.25rem;
    margin-top: 3rem;
  }
  .page-faq__moreservice-actions{
    justify-content: flex-end;
  }
}
@media (min-width: 1024px){
  .page-faq__shell{
    padding: 2rem 0 5rem;
  }
  .page-faq__qa-list{
    grid-template-columns: 1fr;
  }
}
@media (prefers-reduced-motion: reduce){
  .page-faq__index-link,
  .page-faq__qa,
  .page-faq__q-toggle::before,
  .page-faq__q-toggle::after{
    transition: none;
  }
  .page-faq__index-link:hover,
  .page-faq__qa:hover{
    transform: none;
  }
}