.page-faq{
  --faq-border: var(--border-neon);
  --faq-card: var(--c-indigo);
  --faq-accent: var(--c-neon);
  --faq-gold: var(--c-gold);
  --faq-text-muted: var(--c-slate);
  --faq-radius: 2px;
  scroll-behavior: smooth;
  background: var(--c-space);
  color: var(--c-white);
  overflow-x: hidden;
}
.page-faq .breadcrumbs{
  padding-top: 28px;
}
.page-faq .breadcrumbs__item{
  color: var(--c-slate);
}
.page-faq__head{
  position: relative;
  display: grid;
  gap: 16px;
  padding: 32px 0 40px;
}
.page-faq__head::before{
  content: "FAQ / INDEX";
  position: absolute;
  top: 16px;
  right: 0;
  font-family: var(--font-display);
  font-size: 12px;
  letter-spacing: .28em;
  color: var(--c-neon);
}
.page-faq__head .page-head__title{
  font-family: var(--font-display), var(--font-body);
  font-size: clamp(2.4rem, 8vw, 5rem);
  letter-spacing: .04em;
  line-height: 1.05;
  margin: 0;
}
.page-faq__head-desc{
  max-width: 640px;
  color: var(--c-slate);
  font-size: 1rem;
  line-height: 1.8;
}
.page-faq__head-meta{
  display: flex;
  flex-wrap: wrap;
  gap: 12px 16px;
}
.page-faq__head-tag{
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: 1px solid var(--faq-border);
  padding: 6px 14px;
  border-radius: 999px;
  color: var(--c-lavender);
  font-size: 13px;
  letter-spacing: .04em;
  background: rgba(139, 92, 246, 0.06);
}
.page-faq__head-tag::before{
  content: "";
  width: 6px;
  height: 6px;
  background: var(--faq-gold);
  border-radius: 50%;
  flex: 0 0 auto;
}
.page-faq__docs{
  padding: 24px 0 64px;
  background:
    radial-gradient(circle at 85% 20%, rgba(139, 92, 246, 0.12), transparent 30%),
    linear-gradient(180deg, transparent, rgba(139, 92, 246, 0.04));
}
.page-faq__docs-grid{
  display: grid;
  gap: 24px;
  align-items: start;
}
.page-faq__docs-visual img,
.page-faq__contact-visual img{
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--faq-border);
  border-radius: var(--faq-radius);
  box-shadow: var(--shadow-card);
  filter: saturate(1.1) contrast(1.05);
}
.page-faq__docs-main{
  position: relative;
  padding-top: 20px;
}
.page-faq__docs-main .tick-bar{
  height: 8px;
  width: 72px;
  background: repeating-linear-gradient(90deg, var(--faq-accent) 0 6px, transparent 6px 12px);
  margin-bottom: 20px;
}
.page-faq__docs-lead{
  max-width: 720px;
  color: var(--c-slate);
  font-size: 1.05rem;
  line-height: 1.9;
}
.page-faq__docs-columns{
  display: grid;
  gap: 16px;
  margin-top: 28px;
}
.page-faq__doc-col{
  position: relative;
  background: var(--faq-card);
  border: 1px solid var(--faq-border);
  padding: 22px;
  box-shadow: var(--shadow-card);
  transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
}
.page-faq__doc-col:hover{
  transform: translateY(-4px);
  box-shadow: var(--glow-neon), var(--shadow-card);
}
.page-faq__doc-col--featured{
  border-color: var(--faq-accent);
  background:
    linear-gradient(180deg, rgba(139, 92, 246, 0.14), rgba(139, 92, 246, 0.04)),
    var(--faq-card);
  box-shadow: var(--glow-neon), var(--shadow-card);
}
.page-faq__doc-col--featured::before{
  content: "第二栏";
  position: absolute;
  top: -1px;
  right: 16px;
  background: var(--faq-accent);
  color: #fff;
  font-size: 12px;
  padding: 4px 10px;
  letter-spacing: .1em;
  z-index: 1;
}
.page-faq__col-no{
  display: block;
  font-family: var(--font-display);
  font-size: 14px;
  letter-spacing: .18em;
  color: var(--faq-gold);
  margin-bottom: 14px;
}
.page-faq__doc-col h3{
  font-size: 1.15rem;
  font-weight: 700;
  margin: 0 0 10px;
}
.page-faq__doc-col p{
  font-size: .95rem;
  line-height: 1.75;
  color: var(--faq-text-muted);
  margin: 0;
}
.page-faq__doc-list{
  list-style: none;
  padding: 0;
  margin: 16px 0 0;
  display: grid;
  gap: 10px;
}
.page-faq__doc-list li{
  position: relative;
  padding-left: 24px;
  color: var(--faq-text-muted);
  font-size: .92rem;
  line-height: 1.6;
}
.page-faq__doc-list li::before{
  content: "→";
  position: absolute;
  left: 0;
  color: var(--faq-gold);
}
.page-faq__list{
  padding: 48px 0 72px;
  background-image:
    linear-gradient(rgba(139, 92, 246, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(139, 92, 246, 0.05) 1px, transparent 1px);
  background-size: 32px 32px;
}
.page-faq__list-grid{
  display: grid;
  gap: 32px;
}
.page-faq__index{
  position: relative;
  padding: 24px 0 0;
}
.page-faq__index h2{
  font-size: 2rem;
  line-height: 1.2;
  margin: 10px 0 18px;
}
.page-faq__index-list{
  list-style: none;
  counter-reset: faqI;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 4px;
  border-top: 1px solid var(--faq-border);
}
.page-faq__index-list li{
  counter-increment: faqI;
  border-bottom: 1px solid var(--faq-border);
}
.page-faq__index-list a{
  display: flex;
  gap: 14px;
  align-items: center;
  padding: 14px 4px;
  color: var(--c-white);
  text-decoration: none;
  transition: color .2s ease, padding-left .2s ease;
}
.page-faq__index-list a::before{
  content: counter(faqI, decimal-leading-zero);
  font-family: var(--font-display);
  font-size: 12px;
  color: var(--faq-gold);
}
.page-faq__index-list a:hover{
  color: var(--faq-gold);
  padding-left: 10px;
}
.page-faq__index-note{
  margin-top: 18px;
  color: var(--faq-text-muted);
  font-size: 13px;
  line-height: 1.7;
}
.page-faq__answers{
  display: grid;
  gap: 40px;
}
.page-faq__group{
  display: grid;
  gap: 12px;
}
.page-faq__group-title{
  font-size: 1.6rem;
  font-weight: 700;
  margin: 0 0 6px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--faq-accent);
  display: inline-block;
}
.page-faq__item{
  background: var(--faq-card);
  border: 1px solid var(--faq-border);
  box-shadow: var(--shadow-card);
  transition: border-color .2s ease, box-shadow .2s ease;
}
.page-faq__item[open]{
  border-color: var(--faq-accent);
  box-shadow: var(--glow-neon), var(--shadow-card);
}
.page-faq__item summary{
  list-style: none;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  padding: 18px 20px;
  font-weight: 700;
  font-size: 1.02rem;
  line-height: 1.5;
}
.page-faq__item summary::-webkit-details-marker{
  display: none;
}
.page-faq__item summary::after{
  content: "+";
  flex: 0 0 auto;
  width: 30px;
  height: 30px;
  display: grid;
  place-items: center;
  border: 1px solid var(--faq-border);
  color: var(--faq-gold);
  font-size: 1.1rem;
  transition: transform .25s ease, background-color .25s ease;
}
.page-faq__item[open] summary::after{
  content: "-";
  background: var(--faq-accent);
  border-color: var(--faq-accent);
  color: #fff;
}
.page-faq__item-body{
  padding: 0 20px 20px;
  color: var(--faq-text-muted);
  font-size: .96rem;
  line-height: 1.85;
}
.page-faq__item-body p{
  margin: 0 0 12px;
}
.page-faq__item-body p:last-child{
  margin: 0;
}
.page-faq__contact{
  padding: 48px 0 80px;
  background: linear-gradient(180deg, var(--c-space), rgba(139, 92, 246, 0.08) 60%, var(--c-space));
}
.page-faq__contact-card{
  position: relative;
  display: grid;
  gap: 24px;
  background: linear-gradient(135deg, var(--c-indigo), var(--c-space));
  border: 1px solid var(--faq-border);
  padding: 28px;
  box-shadow: var(--shadow-card);
}
.page-faq__contact-visual{
  min-width: 0;
}
.page-faq__contact-visual img{
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  border: 1px solid var(--faq-border);
}
.page-faq__contact-info h2{
  font-size: 2rem;
  line-height: 1.2;
  margin: 10px 0 12px;
}
.page-faq__contact-lead{
  color: var(--faq-text-muted);
  line-height: 1.8;
  max-width: 640px;
}
.page-faq__contact-list{
  display: grid;
  gap: 12px;
  margin: 20px 0 0;
  padding: 0;
}
.page-faq__contact-list div{
  display: grid;
  gap: 4px;
  padding: 12px 14px;
  border-left: 2px solid var(--faq-accent);
  background: rgba(139, 92, 246, 0.06);
}
.page-faq__contact-list dt{
  font-size: 12px;
  color: var(--faq-gold);
  letter-spacing: .12em;
  text-transform: uppercase;
}
.page-faq__contact-list dd{
  margin: 0;
  color: var(--c-white);
  font-size: 1.02rem;
  word-break: break-all;
}
.page-faq__contact-actions{
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}
.page-faq__contact-actions .btn{
  min-width: 160px;
  justify-content: center;
  text-decoration: none;
}
@media (min-width: 900px){
  .page-faq__head{
    padding: 72px 0 56px;
    grid-template-columns: 1fr auto;
    align-items: end;
  }
  .page-faq__head .page-head__title{
    grid-column: 1 / -1;
  }
  .page-faq__head-desc{
    grid-column: 1 / 2;
  }
  .page-faq__head-meta{
    grid-column: 2 / 3;
    grid-row: 2;
    text-align: right;
  }
  .page-faq__docs{
    padding-top: 32px;
  }
  .page-faq__docs-grid{
    grid-template-columns: minmax(260px, 5fr) minmax(0, 7fr);
    align-items: start;
  }
  .page-faq__docs-visual{
    position: sticky;
    top: 96px;
  }
  .page-faq__docs-columns{
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
  }
  .page-faq__doc-col--featured{
    transform: translateY(-12px);
  }
  .page-faq__list-grid{
    grid-template-columns: 300px 1fr;
    align-items: start;
  }
  .page-faq__index{
    position: sticky;
    top: 96px;
  }
  .page-faq__contact-card{
    grid-template-columns: minmax(260px, 4fr) minmax(0, 8fr);
    align-items: center;
    padding: 40px;
  }
  .page-faq__contact-list{
    grid-template-columns: repeat(2, 1fr);
    gap: 14px;
  }
}