.page-faq{
  --faq-hair: rgba(255,255,255,.07);
  --faq-hair-hot: rgba(0,229,255,.45);
  --faq-soft: rgba(242,239,230,.86);
  padding-block-start: clamp(14px, 3vw, 30px);
  padding-block-end: clamp(56px, 8vw, 110px);
  position: relative;
}

.page-faq .breadcrumb{
  margin: 0 0 clamp(18px, 3vw, 28px);
}

/* ---------- 首屏框景 ---------- */
.page-faq .faq-hero{
  display: grid;
  gap: clamp(24px, 4vw, 40px);
  padding-bottom: clamp(30px, 5vw, 52px);
  border-bottom: 1px solid var(--faq-hair);
}

.page-faq .faq-hero__frame{
  position: relative;
  border: 1px solid var(--glass-line-soft);
  border-radius: var(--radius);
  padding: clamp(24px, 4.4vw, 48px);
  background:
    radial-gradient(120% 140% at 4% 0%, rgba(123,47,247,.20), transparent 58%),
    linear-gradient(180deg, rgba(28,31,38,.78), rgba(11,12,16,.55));
  box-shadow: var(--shadow-lift);
  overflow: hidden;
}

.page-faq .faq-hero__frame::before,
.page-faq .faq-hero__frame::after{
  content: "";
  position: absolute;
  left: clamp(18px, 4vw, 44px);
  right: clamp(18px, 4vw, 44px);
  height: 8px;
  background-image: repeating-linear-gradient(90deg, var(--faq-hair-hot) 0 1px, transparent 1px 14px);
  pointer-events: none;
  opacity: .7;
}
.page-faq .faq-hero__frame::before{ top: 0; }
.page-faq .faq-hero__frame::after{ bottom: 0; }

.page-faq .faq-hero .headline{ margin: 0; }

.page-faq .faq-hero h1{
  margin: 10px 0 0;
  font-size: clamp(30px, 6.4vw, 62px);
  font-weight: 900;
  letter-spacing: -.02em;
  line-height: 1.12;
  color: var(--paper);
  max-width: 15em;
}

.page-faq .faq-hero .lede{
  margin: 16px 0 0;
  max-width: 40em;
  color: var(--faq-soft);
}

.page-faq .faq-search{
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  width: 100%;
  min-height: 52px;
  margin-top: clamp(20px, 3vw, 28px);
  padding: 8px 16px;
  border-radius: 999px;
  border: 1px solid var(--glass-line);
  background: var(--glass);
  color: var(--mist);
  font: inherit;
  font-size: 15px;
  text-align: left;
  cursor: pointer;
  transition: border-color .3s var(--ease), box-shadow .3s var(--ease), color .3s var(--ease);
}
.page-faq .faq-search:hover,
.page-faq .faq-search:focus-visible{
  border-color: var(--accent);
  box-shadow: var(--glow-accent);
  color: var(--paper);
}
.page-faq .faq-search__hint{
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.page-faq .faq-search__key{
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--accent);
  padding: 5px 11px;
  border-radius: 999px;
  border: 1px solid rgba(0,229,255,.4);
}

.page-faq .faq-hero__meta{
  margin: 16px 0 0;
  font-size: 13.5px;
  letter-spacing: .02em;
  color: var(--mist);
}
.page-faq .faq-hero__meta-num{
  font-family: var(--font-mono);
  font-size: 15px;
  color: var(--accent);
  letter-spacing: .04em;
}

.page-faq .faq-hero__mark{
  justify-self: start;
  width: min(280px, 60vw);
}
.page-faq .faq-hero__mark img{
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--radius);
  opacity: .92;
  filter: drop-shadow(0 0 42px rgba(123,47,247,.45));
}

@media (min-width: 900px){
  .page-faq .faq-hero{
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    align-items: center;
    gap: clamp(32px, 5vw, 72px);
  }
  .page-faq .faq-hero__mark{
    width: 100%;
    justify-self: end;
  }
}

/* ---------- 刻度尺式分类条 ---------- */
.page-faq .faq-ruler{
  display: flex;
  gap: 10px;
  margin: clamp(24px, 4vw, 40px) 0 clamp(20px, 3.4vw, 34px);
  padding: 6px 0 12px;
  overflow-x: auto;
  scrollbar-width: thin;
  -webkit-overflow-scrolling: touch;
  border-bottom: 1px solid var(--faq-hair);
}

.page-faq .faq-tab{
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: 9px;
  min-height: 44px;
  padding: 8px 16px;
  border-radius: 999px;
  border: 1px solid var(--glass-line-soft);
  background: rgba(28,31,38,.62);
  color: var(--paper);
  font-size: 14.5px;
  text-decoration: none;
  white-space: nowrap;
  transition: border-color .3s var(--ease), background .3s var(--ease), transform .3s var(--ease);
}
.page-faq .faq-tab:hover{
  border-color: var(--accent);
  background: rgba(0,229,255,.08);
  transform: translateY(-2px);
}
.page-faq .faq-tab__num{
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .1em;
  color: var(--accent);
}

/* ---------- 分区 ---------- */
.page-faq .faq-sec{
  padding: clamp(30px, 4.6vw, 56px) 0 clamp(20px, 3vw, 34px);
  scroll-margin-top: calc(var(--topbar-h) + 24px);
}
.page-faq .faq-sec + .faq-sec{
  border-top: 1px solid var(--faq-hair);
}

.page-faq .faq-sec__head{
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 12px 16px;
  margin-bottom: clamp(14px, 2.4vw, 22px);
}
.page-faq .faq-sec__head > div{
  flex: 1 1 260px;
  min-width: 0;
}
.page-faq .faq-sec__head .headline{
  margin: 0;
  font-size: clamp(22px, 3.2vw, 32px);
}
.page-faq .faq-sec__num{
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .12em;
  line-height: 1;
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid rgba(0,229,255,.34);
  color: var(--accent);
  transition: background .3s var(--ease), border-color .3s var(--ease), color .3s var(--ease);
}
.page-faq .faq-sec:target .faq-sec__num{
  background: rgba(0,229,255,.14);
  border-color: var(--accent);
  color: var(--paper);
}
.page-faq .faq-sec__note{
  margin: 8px 0 0;
  max-width: 40em;
  font-size: 15px;
  color: var(--mist);
}

.page-faq .faq-inline{
  color: var(--mist);
  text-decoration: underline;
  text-decoration-color: rgba(185,140,255,.5);
  text-underline-offset: 3px;
  transition: color .3s var(--ease), text-decoration-color .3s var(--ease);
}
.page-faq .faq-inline:hover{
  color: var(--accent);
  text-decoration-color: var(--accent);
}

/* 图片与答案并置的分区 */
.page-faq .faq-sec__body--split{
  display: grid;
  gap: clamp(20px, 3.4vw, 34px);
}
@media (min-width: 860px){
  .page-faq .faq-sec__body--split{
    grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
    align-items: start;
    gap: clamp(26px, 4vw, 56px);
  }
}

.page-faq .faq-figure{
  margin: 0;
  border-radius: var(--radius);
  border: 1px solid var(--glass-line-soft);
  background: rgba(21,24,33,.6);
  overflow: hidden;
}
.page-faq .faq-figure img{
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
}
.page-faq .faq-figure figcaption{
  padding: 12px 16px 16px;
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--mist);
}

/* ---------- 折叠问答 ---------- */
.page-faq .faq-acc{
  border-top: 1px solid var(--faq-hair);
}
.page-faq .acc__item{
  border-bottom: 1px solid var(--faq-hair);
}
.page-faq .acc__item h3{
  margin: 0;
  font-size: inherit;
  font-weight: inherit;
  line-height: inherit;
}

.page-faq .acc__btn{
  position: relative;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
  width: 100%;
  min-height: 56px;
  padding: 16px 4px 16px 16px;
  border: 0;
  background: none;
  color: var(--paper);
  font: inherit;
  font-size: 16px;
  line-height: 1.6;
  text-align: left;
  cursor: pointer;
  transition: color .3s var(--ease);
}
.page-faq .acc__btn::before{
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  bottom: 8px;
  width: 3px;
  border-radius: 2px;
  background: linear-gradient(180deg, var(--accent), var(--brand));
  transform: scaleY(0);
  transform-origin: top;
  transition: transform .45s var(--ease);
  pointer-events: none;
}
.page-faq .acc__btn::after{
  content: "";
  flex: 0 0 auto;
  width: 11px;
  height: 11px;
  margin-top: 6px;
  border-right: 2px solid var(--mist);
  border-bottom: 2px solid var(--mist);
  transform: rotate(45deg);
  transition: transform .35s var(--ease), border-color .3s var(--ease);
}
.page-faq .acc__btn:hover{
  color: var(--accent);
}
.page-faq .acc__btn[aria-expanded="true"]{
  color: var(--accent);
}
.page-faq .acc__btn[aria-expanded="true"]::before{
  transform: scaleY(1);
}
.page-faq .acc__btn[aria-expanded="true"]::after{
  transform: rotate(-135deg);
  border-color: var(--accent);
}

.page-faq .acc__panel{
  display: none;
  padding: 0 4px 22px 16px;
}
.page-faq .acc__panel[data-open="true"]{
  display: block;
  animation: faq-panel-in .42s var(--ease) both;
}
@keyframes faq-panel-in{
  from{ opacity: 0; transform: translateY(-8px); }
  to{ opacity: 1; transform: none; }
}
.page-faq .acc__panel p{
  margin: 0;
  max-width: 42em;
  padding: 14px 16px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--glass-line-soft);
  background: var(--glass);
  color: var(--faq-soft);
  font-size: 15.5px;
  line-height: 1.75;
}
.page-faq .faq-mono{
  font-family: var(--font-mono);
  letter-spacing: .04em;
  color: var(--accent);
}

/* ---------- 底部工单入口 ---------- */
.page-faq .faq-cta{
  margin-top: clamp(36px, 5.6vw, 72px);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 20px 32px;
  padding: clamp(22px, 3.4vw, 34px);
  border-radius: var(--radius);
  border: 1px solid rgba(255,107,53,.45);
  background:
    radial-gradient(130% 170% at 0% 0%, rgba(255,107,53,.16), transparent 60%),
    radial-gradient(130% 170% at 100% 100%, rgba(123,47,247,.20), transparent 62%),
    var(--surface-2);
  box-shadow: var(--shadow-lift);
}
.page-faq .faq-cta__text{
  flex: 1 1 320px;
  min-width: 0;
}
.page-faq .faq-cta__title{
  margin: 0 0 8px;
  font-size: clamp(20px, 3vw, 27px);
  font-weight: 700;
  color: var(--paper);
}
.page-faq .faq-cta__text p{
  margin: 0;
  max-width: 38em;
  font-size: 15px;
  line-height: 1.75;
  color: var(--mist);
}
.page-faq .faq-cta__actions{
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}
.page-faq .faq-cta__actions .btn{
  min-height: 46px;
}

/* ---------- 窄屏收敛 ---------- */
@media (max-width: 560px){
  .page-faq .faq-hero__frame{
    padding: 22px 18px;
  }
  .page-faq .acc__btn{
    font-size: 15.5px;
    gap: 12px;
    padding-left: 14px;
  }
  .page-faq .acc__panel{
    padding-left: 14px;
  }
  .page-faq .acc__panel p{
    padding: 12px 13px;
  }
  .page-faq .faq-cta__actions{
    width: 100%;
  }
  .page-faq .faq-cta__actions .btn{
    flex: 1 1 auto;
    justify-content: center;
  }
}

@media (prefers-reduced-motion: reduce){
  .page-faq .acc__btn::before,
  .page-faq .acc__btn::after,
  .page-faq .faq-tab,
  .page-faq .faq-sec__num,
  .page-faq .faq-inline,
  .page-faq .faq-search{
    transition: none;
  }
  .page-faq .faq-tab:hover{
    transform: none;
  }
  .page-faq .acc__panel[data-open="true"]{
    animation: none;
  }
}