.page-faq{
  background-color: var(--color-deep);
  background-image:
    linear-gradient(rgba(245,245,245,0.028) 1px, transparent 1px),
    linear-gradient(90deg, rgba(245,245,245,0.028) 1px, transparent 1px);
  background-size: 48px 48px;
  color: var(--color-cloud);
  position: relative;
}

/* ===== Hero 区 ===== */
.page-faq .faq-hero{
  position: relative;
  padding: 44px 0 56px;
  border-bottom: 1px solid var(--color-line);
  background:
    linear-gradient(135deg, rgba(255,77,0,0.12) 0%, transparent 46%),
    linear-gradient(315deg, rgba(138,43,226,0.07) 0%, transparent 42%);
}
.page-faq .faq-crumbs{
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 28px;
  font-size: 13px;
  letter-spacing: 0.02em;
  color: var(--color-smoke);
}
.page-faq .faq-crumbs a{
  color: var(--color-smoke);
  text-decoration: none;
  transition: color 0.2s ease;
}
.page-faq .faq-crumbs a:hover{
  color: var(--color-flame);
}
.page-faq .faq-crumbs__sep{
  color: var(--color-smoke);
  opacity: 0.5;
}
.page-faq .faq-hero__grid{
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
}
.page-faq .faq-hero__copy{
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 16px;
}
.page-faq .faq-hero__copy h1{
  margin: 0;
  font-size: clamp(2rem, 4.6vw, 3.4rem);
  font-weight: 900;
  line-height: 1.16;
  letter-spacing: -0.02em;
  max-width: 13em;
}
.page-faq .faq-hero__copy > p{
  margin: 0;
  max-width: 36em;
  font-size: 15px;
  line-height: 1.8;
  color: var(--color-smoke);
}
.page-faq .faq-hero__actions{
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 6px;
}
.page-faq .faq-hero__media{
  margin: 0;
  border: 1px solid var(--color-line-strong);
  background: var(--color-rock);
  position: relative;
}
.page-faq .faq-hero__media::after{
  content: '';
  position: absolute;
  top: -1px;
  right: -1px;
  width: 30px;
  height: 30px;
  background:
    linear-gradient(45deg, transparent 13px, var(--color-flame) 13px, var(--color-flame) 15px, transparent 15px);
}
.page-faq .faq-hero__media img{
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

/* ===== 悬浮面板 ===== */
.page-faq .faq-sos{
  position: fixed;
  right: 16px;
  bottom: 16px;
  z-index: 80;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 12px;
  background: rgba(17, 24, 39, 0.96);
  border: 1px solid var(--color-line-strong);
  box-shadow:
    0 0 0 1px rgba(255, 77, 0, 0.12),
    0 10px 30px rgba(0, 0, 0, 0.45);
  font-size: 13px;
}
.page-faq .faq-sos__pulse{
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-flame);
  box-shadow: 0 0 0 0 rgba(255, 77, 0, 0.5);
  animation: page-faq-pulse 2s infinite;
}
@keyframes page-faq-pulse{
  0%{ box-shadow: 0 0 0 0 rgba(255, 77, 0, 0.5); }
  70%{ box-shadow: 0 0 0 10px rgba(255, 77, 0, 0); }
  100%{ box-shadow: 0 0 0 0 rgba(255, 77, 0, 0); }
}
.page-faq .faq-sos__text{
  color: var(--color-smoke);
}
.page-faq .faq-sos__link{
  color: var(--color-flame);
  font-weight: 700;
  text-decoration: none;
  white-space: nowrap;
}

/* ===== 部分通用头部 ===== */
.page-faq .faq-block,
.page-faq .faq-timing{
  padding: 56px 0 24px;
  position: relative;
}
.page-faq .faq-block__head,
.page-faq .faq-timing__head{
  max-width: 720px;
  border-left: 2px solid var(--color-flame);
  padding-left: 20px;
  margin-bottom: 36px;
}
.page-faq .faq-timing__head{
  border-left-color: var(--color-electric);
}
.page-faq .faq-block__kicker{
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--color-electric);
  text-transform: uppercase;
}
.page-faq .faq-block__head h2,
.page-faq .faq-timing__head h2{
  margin: 10px 0 8px;
  font-size: clamp(1.7rem, 3vw, 2.4rem);
  font-weight: 900;
  letter-spacing: -0.01em;
  color: var(--color-cloud);
}
.page-faq .faq-block__head > p,
.page-faq .faq-timing__head > p{
  margin: 0;
  color: var(--color-smoke);
  line-height: 1.7;
  font-size: 15px;
}

/* ===== 问答流 ===== */
.page-faq .faq-stream{
  max-width: 920px;
}
.page-faq .faq-card{
  position: relative;
  border: 1px solid var(--color-line);
  background: var(--color-rock);
  margin-bottom: 12px;
  transition: border-color 0.25s ease, background 0.25s ease;
}
.page-faq .faq-card:hover{
  border-color: var(--color-line-strong);
}
.page-faq .faq-card[open]{
  border-color: rgba(255, 77, 0, 0.45);
  background:
    radial-gradient(circle at 100% 0%, rgba(255, 77, 0, 0.1), transparent 55%),
    var(--color-rock);
}
.page-faq .faq-card::before{
  content: '';
  position: absolute;
  left: -1px;
  top: 0;
  bottom: 0;
  width: 3px;
  background: linear-gradient(to bottom, var(--color-flame), var(--color-hot));
  opacity: 0;
  transition: opacity 0.25s ease;
}
.page-faq .faq-card[open]::before{
  opacity: 1;
}
.page-faq .faq-card__bar{
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 20px 20px 20px 22px;
  cursor: pointer;
  list-style: none;
  user-select: none;
}
.page-faq .faq-card__bar::-webkit-details-marker{
  display: none;
}
.page-faq .faq-card__index{
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--color-electric);
  width: 36px;
  flex-shrink: 0;
  letter-spacing: 0.04em;
  position: relative;
  padding-bottom: 6px;
}
.page-faq .faq-card__index::after{
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1px;
  background: var(--color-line-strong);
}
.page-faq .faq-card__title{
  flex: 1;
  font-size: 16px;
  font-weight: 700;
  color: var(--color-cloud);
  line-height: 1.5;
}
.page-faq .faq-card__icon{
  flex-shrink: 0;
  color: var(--color-flame);
  transition: transform 0.3s ease;
}
.page-faq .faq-card[open] .faq-card__icon{
  transform: rotate(45deg);
}
.page-faq .faq-card__body{
  margin: 0 20px 20px 22px;
  padding-top: 16px;
  border-top: 1px dashed var(--color-line);
  color: var(--color-smoke);
  line-height: 1.8;
  font-size: 14px;
}
.page-faq .faq-card__body p{
  margin: 0;
}
.page-faq .faq-card__body a{
  color: var(--color-flame);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ===== 更新与时效 ===== */
.page-faq .faq-timing{
  padding-top: 64px;
  border-top: 1px solid var(--color-line);
  margin-top: 40px;
}
.page-faq .faq-timing__grid{
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}
.page-faq .faq-timing__card{
  background: var(--color-rock);
  border: 1px solid var(--color-line);
  padding: 28px 22px;
  position: relative;
  transition: transform 0.25s ease, border-color 0.25s ease;
}
.page-faq .faq-timing__card:hover{
  transform: translateY(-2px);
  border-color: var(--color-line-strong);
}
.page-faq .faq-timing__card::after{
  content: '';
  position: absolute;
  right: 0;
  bottom: 0;
  width: 46%;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--color-flame));
}
.page-faq .faq-timing__label{
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-electric);
  margin-bottom: 14px;
}
.page-faq .faq-timing__metric{
  font-family: var(--font-mono);
  font-size: clamp(1.5rem, 2.6vw, 2rem);
  font-weight: 800;
  color: var(--color-cloud);
  margin: 0 0 10px;
}
.page-faq .faq-timing__card h3{
  font-size: 17px;
  font-weight: 700;
  color: var(--color-cloud);
  margin: 0 0 10px;
}
.page-faq .faq-timing__card > p{
  font-size: 14px;
  line-height: 1.7;
  color: var(--color-smoke);
  margin: 0 0 18px;
}
.page-faq .faq-timing__link{
  color: var(--color-flame);
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 77, 0, 0.4);
  padding-bottom: 2px;
  transition: border-color 0.2s ease;
}
.page-faq .faq-timing__link:hover{
  border-color: var(--color-flame);
}

/* ===== 联系支持 ===== */
.page-faq .faq-support{
  padding: 0 0 80px;
}
.page-faq .faq-support__grid{
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
}
.page-faq .faq-support__copy{
  background: var(--color-rock);
  border: 1px solid var(--color-line);
  padding: 30px 24px;
  position: relative;
}
.page-faq .faq-support__copy h2{
  margin: 10px 0 8px;
  font-size: clamp(1.7rem, 3vw, 2.4rem);
  font-weight: 900;
  letter-spacing: -0.01em;
  color: var(--color-cloud);
}
.page-faq .faq-support__copy > p{
  margin: 0 0 22px;
  color: var(--color-smoke);
  line-height: 1.7;
  font-size: 15px;
}
.page-faq .faq-support__list{
  list-style: none;
  margin: 0 0 24px;
  padding: 0;
  display: grid;
  gap: 10px;
}
.page-faq .faq-support__item{
  display: grid;
  gap: 4px;
  border-bottom: 1px dashed var(--color-line);
  padding-bottom: 12px;
}
.page-faq .faq-support__item-label{
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--color-smoke);
}
.page-faq .faq-support__item-value{
  font-size: 16px;
  font-weight: 700;
  color: var(--color-cloud);
}
.page-faq .faq-support__item-note{
  font-size: 13px;
  color: var(--color-smoke);
}
.page-faq .faq-support__media{
  margin: 0;
  border: 1px solid var(--color-line-strong);
  background: var(--color-rock);
  position: relative;
}
.page-faq .faq-support__media img{
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

/* ===== 平板 / 桌面 ===== */
@media (min-width: 768px){
  .page-faq .faq-hero{
    padding: 64px 0 72px;
  }
  .page-faq .faq-hero__grid{
    grid-template-columns: 1.05fr 0.95fr;
    align-items: center;
    gap: 40px;
  }
  .page-faq .faq-hero__copy h1{
    font-size: 3rem;
  }
  .page-faq .faq-sos{
    right: 24px;
    bottom: 24px;
    padding: 14px 18px;
    font-size: 14px;
    gap: 10px;
  }
  .page-faq .faq-block,
  .page-faq .faq-timing{
    padding: 72px 0 32px;
  }
  .page-faq .faq-card__bar{
    padding: 24px 28px 24px 32px;
    gap: 18px;
  }
  .page-faq .faq-card__index{
    width: 46px;
    font-size: 15px;
  }
  .page-faq .faq-card__title{
    font-size: 18px;
  }
  .page-faq .faq-card__body{
    margin: 0 28px 24px 96px;
    font-size: 15px;
  }
  .page-faq .faq-timing__grid{
    grid-template-columns: repeat(3, 1fr);
  }
  .page-faq .faq-timing__card{
    padding: 32px 26px;
  }
  .page-faq .faq-support__grid{
    grid-template-columns: 1.1fr 0.9fr;
    align-items: center;
    gap: 40px;
  }
  .page-faq .faq-support__copy{
    padding: 36px 32px;
  }
}

@media (min-width: 1100px){
  .page-faq .faq-hero__copy h1{
    font-size: 3.4rem;
  }
  .page-faq .faq-stream{
    margin-left: 48px;
  }
}

/* ===== 减弱动效 ===== */
@media (prefers-reduced-motion: reduce){
  .page-faq .faq-sos__pulse{
    animation: none;
  }
  .page-faq .faq-card__icon,
  .page-faq .faq-card,
  .page-faq .faq-timing__card{
    transition: none;
  }
}