.page-faq{
  --faq-orange: var(--color-accent-orange);
  --faq-green: var(--color-accent-green);
  --faq-line: var(--color-line);
  --faq-line-strong: var(--color-line-strong);
  --faq-text: var(--color-text);
  --faq-muted: var(--color-muted);
  --faq-surface: var(--color-surface);
  --faq-display: var(--font-display);
  --faq-body: var(--font-body);
  --faq-mono: var(--font-mono);
  display: block;
  overflow-x: clip;
}

/* ===== 框景首屏 ===== */
.page-faq .faq-hero{
  padding: 18px 0 10px;
}
.page-faq .faq-hero__window{
  position: relative;
  padding: 36px 20px 40px;
  background:
    linear-gradient(135deg, rgba(10,31,68,0.88), rgba(8,15,29,0.62)),
    repeating-linear-gradient(90deg, transparent 0 39px, rgba(233,237,242,0.04) 39px 40px),
    repeating-linear-gradient(0deg, transparent 0 39px, rgba(233,237,242,0.04) 39px 40px);
  border: 1px solid var(--faq-line);
  box-shadow: var(--shadow-panel);
  isolation: isolate;
}
.page-faq .faq-hero__window::after{
  content: "";
  position: absolute;
  inset: 9px;
  border: 1px solid var(--faq-line-strong);
  pointer-events: none;
  z-index: 1;
}
.page-faq .faq-hero__content{
  position: relative;
  z-index: 2;
}
.page-faq .faq-hero__corner{
  position: absolute;
  width: 18px;
  height: 18px;
  pointer-events: none;
  z-index: 3;
}
.page-faq .faq-hero__corner--tl{ top: -1px; left: -1px; border-top: 3px solid var(--faq-green); border-left: 3px solid var(--faq-green); }
.page-faq .faq-hero__corner--tr{ top: -1px; right: -1px; border-top: 3px solid var(--faq-orange); border-right: 3px solid var(--faq-orange); }
.page-faq .faq-hero__corner--bl{ bottom: -1px; left: -1px; border-bottom: 3px solid var(--faq-orange); border-left: 3px solid var(--faq-orange); }
.page-faq .faq-hero__corner--br{ right: -1px; bottom: -1px; border-right: 3px solid var(--faq-green); border-bottom: 3px solid var(--faq-green); }

.page-faq .faq-hero__kicker{
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
  font-family: var(--faq-mono);
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--faq-green);
}
.page-faq .faq-hero__kicker::before{
  content: "";
  width: 28px;
  height: 1px;
  background: currentColor;
  opacity: 0.7;
}
.page-faq .faq-hero__title{
  margin: 0;
  font-family: var(--faq-display);
  font-size: clamp(2.4rem, 7vw, 4.4rem);
  font-weight: 700;
  line-height: 1.04;
  letter-spacing: 0.01em;
  text-transform: uppercase;
}
.page-faq .faq-hero__title-dot{
  color: var(--faq-orange);
}
.page-faq .faq-hero__subtitle{
  max-width: 46em;
  margin: 16px 0 0;
  font-family: var(--faq-body);
  font-size: 0.96rem;
  line-height: 1.8;
  color: var(--faq-muted);
}
.page-faq .faq-hero__meta{
  display: flex;
  flex-wrap: wrap;
  gap: 12px 28px;
  margin-top: 28px;
  padding-top: 18px;
  border-top: 1px solid var(--faq-line);
}
.page-faq .faq-hero__stat{
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 64px;
}
.page-faq .faq-hero__stat-num{
  font-family: var(--faq-mono);
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--faq-text);
  letter-spacing: 0.02em;
  line-height: 1;
}
.page-faq .faq-hero__stat-label{
  font-family: var(--faq-body);
  font-size: 0.72rem;
  color: var(--faq-muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

/* ===== 主内容分栏 ===== */
.page-faq .faq-body{
  padding-top: 40px;
  padding-bottom: 8px;
}
.page-faq .faq-body__grid{
  display: grid;
  gap: 36px;
}

/* 侧栏目录 */
.page-faq .faq-aside{
  min-width: 0;
}
.page-faq .faq-toc{
  border-top: 3px solid var(--faq-green);
  padding-top: 16px;
}
.page-faq .faq-toc__title{
  font-family: var(--faq-display);
  font-size: 0.88rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--faq-text);
  margin-bottom: 18px;
}
.page-faq .faq-toc__list{
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 4px;
}
.page-faq .faq-toc__item{
  border-bottom: 1px solid var(--faq-line);
}
.page-faq .faq-toc__link{
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 10px 2px;
  font-family: var(--faq-body);
  font-size: 0.9rem;
  color: var(--faq-text);
  text-decoration: none;
  transition: color 0.2s var(--ease), padding-left 0.2s var(--ease);
}
.page-faq .faq-toc__link:hover{
  color: var(--faq-green);
  padding-left: 8px;
}
.page-faq .faq-toc__num{
  font-family: var(--faq-mono);
  font-size: 0.72rem;
  color: var(--faq-orange);
  letter-spacing: 0.04em;
}
.page-faq .faq-aside__note{
  margin-top: 16px;
}
.page-faq .faq-aside__note-tag{
  display: inline-block;
  font-family: var(--faq-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  color: var(--faq-green);
  margin-bottom: 8px;
}
.page-faq .faq-aside__note-title{
  margin: 0 0 6px;
  font-family: var(--faq-display);
  font-size: 1rem;
  font-weight: 600;
}
.page-faq .faq-aside__note p:last-child{
  margin-bottom: 0;
  font-size: 0.86rem;
  line-height: 1.7;
  color: var(--faq-muted);
}

/* 主问答区 */
.page-faq .faq-main{
  min-width: 0;
}
.page-faq .faq-main__media{
  margin-bottom: 22px;
}
.page-faq .faq-main__img{
  display: block;
  width: 100%;
  height: auto;
}

.page-faq .faq-cat{
  display: flex;
  align-items: center;
  margin: 38px 0 2px;
  padding-top: 18px;
  border-top: 1px solid var(--faq-line);
  font-family: var(--faq-display);
  font-size: 1.18rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--faq-text);
  text-transform: uppercase;
  scroll-margin-top: 20px;
}
.page-faq .faq-cat:first-of-type{
  margin-top: 0;
}
.page-faq .faq-cat__index{
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 32px;
  height: 24px;
  padding: 0 8px;
  margin-right: 12px;
  font-family: var(--faq-mono);
  font-size: 0.76rem;
  color: var(--faq-orange);
  border: 1px solid var(--faq-line);
  border-radius: 2px;
}
.page-faq .faq-cat[data-active]{
  border-top-color: var(--faq-green);
}
.page-faq .faq-cat[data-active] .faq-cat__index{
  border-color: var(--faq-green);
  color: var(--faq-green);
}

.page-faq .faq-item{
  border-bottom: 1px solid var(--faq-line);
}
.page-faq .faq-item details{
  display: block;
  width: 100%;
}
.page-faq .faq-item__q{
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 18px 0;
  cursor: pointer;
  list-style: none;
  font-family: var(--faq-display);
  font-size: 1rem;
  font-weight: 500;
  line-height: 1.45;
  color: var(--faq-text);
  letter-spacing: 0.02em;
  transition: color 0.2s var(--ease);
}
.page-faq .faq-item__q::-webkit-details-marker{
  display: none;
}
.page-faq .faq-item__q:hover{
  color: var(--faq-green);
}
.page-faq .faq-item__q::after{
  content: "+";
  flex: 0 0 24px;
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--faq-line);
  border-radius: 50%;
  font-family: var(--faq-mono);
  font-size: 1rem;
  line-height: 1;
  color: var(--faq-green);
  transition: transform 0.25s var(--ease), border-color 0.25s var(--ease);
}
.page-faq .faq-item details[open] .faq-item__q{
  color: var(--faq-green);
}
.page-faq .faq-item details[open] .faq-item__q::after{
  content: "−";
  border-color: var(--faq-orange);
  color: var(--faq-orange);
  transform: rotate(180deg);
}
.page-faq .faq-item__a{
  padding: 0 0 20px;
  max-width: 58em;
  font-family: var(--faq-body);
  font-size: 0.92rem;
  line-height: 1.8;
  color: var(--faq-muted);
}
.page-faq .faq-item__a p{
  margin: 0;
}

/* ===== 两步入门 ===== */
.page-faq .faq-quick{
  margin-top: 56px;
  padding: 48px 0 52px;
  background:
    linear-gradient(115deg, rgba(0,229,160,0.07) 0%, rgba(8,15,29,0.2) 55%, rgba(255,107,53,0.05) 100%);
  border-top: 1px solid var(--faq-line);
  border-bottom: 1px solid var(--faq-line);
  position: relative;
  overflow: hidden;
}
.page-faq .faq-quick__grid{
  display: grid;
  gap: 36px;
}
.page-faq .faq-quick__intro .section__heading{
  margin-top: 8px;
}
.page-faq .faq-quick__intro .section__description{
  max-width: 34em;
  margin-top: 12px;
}
.page-faq .faq-quick__btn{
  margin-top: 22px;
}
.page-faq .faq-quick__flow{
  display: grid;
  gap: 26px;
}
.page-faq .faq-quick__media{
  align-self: center;
}
.page-faq .faq-quick__img{
  display: block;
  width: 100%;
  height: auto;
}
.page-faq .faq-quick__list{
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.page-faq .faq-quick__item{
  display: flex;
  gap: 18px;
  padding: 18px 16px;
  background: var(--faq-surface);
  border: 1px solid var(--faq-line);
  border-left: 3px solid var(--faq-green);
}
.page-faq .faq-quick__item:last-child{
  border-left-color: var(--faq-orange);
}
.page-faq .faq-quick__num{
  font-family: var(--faq-mono);
  font-size: 2rem;
  font-weight: 700;
  line-height: 1;
  color: transparent;
  -webkit-text-stroke: 1px var(--faq-green);
}
.page-faq .faq-quick__item:last-child .faq-quick__num{
  -webkit-text-stroke-color: var(--faq-orange);
}
.page-faq .faq-quick__text h3{
  margin: 0 0 6px;
  font-family: var(--faq-display);
  font-size: 1.06rem;
  font-weight: 600;
  color: var(--faq-text);
}
.page-faq .faq-quick__text p{
  margin: 0;
  font-size: 0.86rem;
  line-height: 1.65;
  color: var(--faq-muted);
}

/* ===== 六大服务清单 ===== */
.page-faq .faq-services{
  padding: 60px 0 20px;
}
.page-faq .faq-services__header{
  max-width: 42em;
}
.page-faq .faq-services__header .section__heading{
  margin-top: 8px;
}
.page-faq .faq-services__header .section__description{
  margin-top: 12px;
}
.page-faq .faq-services__grid{
  display: grid;
  gap: 14px;
  margin-top: 32px;
}
.page-faq .faq-services__card{
  position: relative;
  padding: 22px 20px 20px;
  background: var(--faq-surface);
  border: 1px solid var(--faq-line);
  transition: border-color 0.25s var(--ease), transform 0.25s var(--ease), background 0.25s var(--ease);
}
.page-faq .faq-services__card:hover{
  border-color: var(--faq-line-strong);
  transform: translateY(-2px);
  background: rgba(255,255,255,0.06);
}
.page-faq .faq-services__num{
  display: inline-flex;
  margin-bottom: 18px;
  font-family: var(--faq-mono);
  font-size: 0.8rem;
  color: var(--faq-green);
  letter-spacing: 0.08em;
}
.page-faq .faq-services__card:nth-child(even) .faq-services__num{
  color: var(--faq-orange);
}
.page-faq .faq-services__name{
  margin: 0 0 8px;
  font-family: var(--faq-display);
  font-size: 1.1rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  color: var(--faq-text);
}
.page-faq .faq-services__desc{
  margin: 0;
  font-size: 0.86rem;
  line-height: 1.65;
  color: var(--faq-muted);
}

/* ===== 联系引导 ===== */
.page-faq .faq-cta{
  padding: 40px 0 56px;
}
.page-faq .faq-cta__inner{
  display: flex;
  flex-direction: column;
  gap: 28px;
  align-items: flex-start;
  padding: 32px 22px;
  border: 1px solid var(--faq-line);
  background:
    linear-gradient(120deg, rgba(10,31,68,0.6), rgba(8,15,29,0.3)),
    repeating-linear-gradient(90deg, transparent 0 29px, rgba(233,237,242,0.03) 29px 30px);
}
.page-faq .faq-cta__heading{
  margin-top: 6px;
}
.page-faq .faq-cta__left .section__description{
  margin-top: 10px;
  max-width: 40em;
}
.page-faq .faq-cta__btn{
  margin-top: auto;
}

/* ===== 响应式布局 ===== */
@media (min-width: 600px){
  .page-faq .faq-services__grid{
    grid-template-columns: repeat(2, 1fr);
  }
  .page-faq .faq-services__card:last-child{
    grid-column: span 2;
  }
}

@media (min-width: 900px){
  .page-faq .faq-hero{
    padding-top: 24px;
  }
  .page-faq .faq-hero__window{
    padding: 48px 48px 52px;
  }
  .page-faq .faq-hero__content{
    max-width: 720px;
  }
  .page-faq .faq-body__grid{
    grid-template-columns: 260px minmax(0, 1fr);
    gap: 52px;
  }
  .page-faq .faq-aside{
    position: sticky;
    top: 88px;
  }
  .page-faq .faq-quick__grid{
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
    gap: 56px;
    align-items: center;
  }
  .page-faq .faq-quick__flow{
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
    align-items: center;
  }
  .page-faq .faq-services__grid{
    grid-template-columns: repeat(3, 1fr);
  }
  .page-faq .faq-services__card:last-child{
    grid-column: auto;
  }
  .page-faq .faq-cta__inner{
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    padding: 40px 48px;
  }
}