.page-faq{
  --faq-sticky: 96px;
  position:relative;
  display:block;
  padding-bottom:clamp(56px,8vw,110px);
}

.page-faq::before{
  content:"";
  position:absolute;
  inset:0 0 auto 0;
  height:min(58vh,540px);
  background:
    radial-gradient(78% 100% at 8% 0%, rgba(23,240,210,.10), transparent 62%),
    radial-gradient(58% 88% at 94% 4%, rgba(255,106,61,.09), transparent 70%);
  pointer-events:none;
  z-index:0;
}

.page-faq > .wrap{
  position:relative;
  z-index:1;
}

/* ---------- 面包屑 ---------- */
.page-faq .faq-crumbs{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:.5em;
  padding-top:clamp(18px,3vw,30px);
  font-size:12.5px;
  letter-spacing:.06em;
  color:var(--ly-mist);
}
.page-faq .faq-crumbs a{
  color:var(--ly-mist);
  text-decoration:none;
  transition:color .2s var(--ly-ease);
}
.page-faq .faq-crumbs a:hover,
.page-faq .faq-crumbs a:focus-visible{
  color:var(--ly-cyan);
}
.page-faq .faq-crumbs [aria-current="page"]{
  color:var(--ly-white);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero{
  position:relative;
  padding:clamp(28px,5vw,64px) 0 clamp(26px,4vw,44px);
  border-bottom:1px solid var(--ly-line);
}

.page-faq .faq-hero::after{
  content:"";
  position:absolute;
  right:0;
  top:20%;
  width:min(34%,320px);
  height:1px;
  background:linear-gradient(90deg,transparent,var(--ly-line-strong));
  transform:rotate(-16deg);
  transform-origin:right center;
  opacity:.85;
  pointer-events:none;
}

.page-faq .faq-hero h1{
  margin:.18em 0 .36em;
  font-family:var(--ly-font-display);
  font-size:clamp(34px,7.4vw,86px);
  font-weight:300;
  line-height:1.08;
  letter-spacing:-.01em;
  color:var(--ly-white);
}
.page-faq .faq-hero h1 em{
  font-style:normal;
  color:var(--ly-coral);
}

.page-faq .faq-lede{
  max-width:34em;
  margin:0;
  font-size:clamp(15px,1.5vw,17px);
  line-height:1.8;
  color:var(--ly-mist);
}

/* ---------- 三步上手 ---------- */
.page-faq .faq-steps{
  padding:clamp(32px,5vw,58px) 0 0;
}

.page-faq .faq-steps__list{
  list-style:none;
  margin:clamp(20px,3vw,34px) 0 0;
  padding:0;
  display:grid;
  grid-template-columns:1fr;
  gap:14px;
}

.page-faq .faq-step{
  position:relative;
  padding:22px 20px 22px 22px;
  border:1px solid var(--ly-line);
  border-left:2px solid var(--ly-cyan);
  border-radius:var(--ly-radius);
  background:var(--ly-glass);
  backdrop-filter:blur(6px);
  -webkit-backdrop-filter:blur(6px);
}

.page-faq .faq-step__no{
  display:block;
  font-family:var(--ly-font-mono);
  font-size:26px;
  line-height:1;
  letter-spacing:.02em;
  color:var(--ly-cyan);
  margin-bottom:14px;
}

.page-faq .faq-step__t{
  margin:0 0 8px;
  font-size:17px;
  font-weight:600;
  line-height:1.4;
  letter-spacing:.01em;
  color:var(--ly-white);
}

.page-faq .faq-step p{
  margin:0;
  font-size:14.5px;
  line-height:1.75;
  color:var(--ly-mist);
}
.page-faq .faq-step p a{
  color:var(--ly-cyan-soft);
  text-decoration:none;
  border-bottom:1px solid var(--ly-line-strong);
}
.page-faq .faq-step p a:hover,
.page-faq .faq-step p a:focus-visible{
  color:var(--ly-cyan);
}

.page-faq .faq-step__meta{
  display:inline-block;
  margin-top:16px;
  padding:3px 10px;
  font-family:var(--ly-font-mono);
  font-size:12px;
  letter-spacing:.04em;
  color:var(--ly-cyan-soft);
  border:1px solid var(--ly-line);
  border-radius:999px;
}

/* ---------- 问答区 ---------- */
.page-faq .faq-ask{
  padding:clamp(40px,6vw,76px) 0 0;
}

.page-faq .faq-qa{
  display:grid;
  grid-template-columns:1fr;
  gap:clamp(22px,3.4vw,34px);
  margin-top:clamp(22px,3.4vw,36px);
}

/* 左侧编号索引 */
.page-faq .faq-rail{
  position:relative;
  padding:16px 14px;
  border:1px solid var(--ly-line);
  border-radius:var(--ly-radius);
  background:linear-gradient(180deg,rgba(15,58,92,.5),rgba(4,24,43,.22));
  backdrop-filter:blur(8px);
  -webkit-backdrop-filter:blur(8px);
}

.page-faq .faq-rail__label{
  margin:0 0 14px;
  color:var(--ly-mist);
}

.page-faq .faq-rail__list{
  list-style:none;
  margin:0;
  padding:0;
  display:grid;
  gap:2px;
}

.page-faq .faq-rail__link{
  display:flex;
  align-items:baseline;
  gap:10px;
  padding:9px 10px 9px 12px;
  border-left:2px solid transparent;
  border-radius:0 var(--ly-radius) var(--ly-radius) 0;
  font-size:14px;
  line-height:1.45;
  color:var(--ly-mist);
  text-decoration:none;
  transition:color .2s var(--ly-ease),border-color .2s var(--ly-ease),background-color .2s var(--ly-ease);
}
.page-faq .faq-rail__link:hover,
.page-faq .faq-rail__link:focus-visible{
  color:var(--ly-white);
  border-left-color:var(--ly-line-strong);
  background:rgba(23,240,210,.06);
}
.page-faq .faq-rail__link[aria-current="location"]{
  color:var(--ly-cyan);
  border-left-color:var(--ly-cyan);
  background:rgba(23,240,210,.09);
}

.page-faq .faq-rail__no{
  flex:none;
  font-family:var(--ly-font-mono);
  font-size:12px;
  letter-spacing:.04em;
  opacity:.85;
}

/* 右侧答案流 */
.page-faq .faq-flow{
  display:grid;
  gap:clamp(24px,3.4vw,40px);
  min-width:0;
}

.page-faq .faq-item{
  position:relative;
  padding-left:18px;
  border-left:2px solid var(--ly-line-strong);
  scroll-margin-top:var(--faq-sticky);
}

.page-faq .faq-item__head{
  display:flex;
  align-items:baseline;
  gap:12px;
  margin-bottom:12px;
}

.page-faq .faq-item__no{
  flex:none;
  font-family:var(--ly-font-mono);
  font-size:13px;
  letter-spacing:.06em;
  color:var(--ly-cyan);
}

.page-faq .faq-item__q{
  margin:0;
  font-family:var(--ly-font-display);
  font-size:clamp(19px,2.4vw,26px);
  font-weight:400;
  line-height:1.36;
  letter-spacing:.005em;
  color:var(--ly-white);
}

.page-faq .faq-item__a{
  max-width:34em;
  margin:0;
  font-size:15.5px;
  line-height:1.8;
  color:var(--ly-mist);
}
.page-faq .faq-item__a strong{
  color:var(--ly-cyan-soft);
  font-weight:600;
}
.page-faq .faq-item__a a{
  color:var(--ly-cyan-soft);
  text-decoration:none;
  border-bottom:1px solid var(--ly-line-strong);
}
.page-faq .faq-item__a a:hover,
.page-faq .faq-item__a a:focus-visible{
  color:var(--ly-cyan);
}

.page-faq .faq-mail{
  font-family:var(--ly-font-mono);
  font-size:14px;
  color:var(--ly-cyan);
  word-break:break-all;
}

/* 图片 */
.page-faq .faq-media{
  margin:22px 0 0;
  max-width:640px;
  border:1px solid var(--ly-line);
  border-radius:var(--ly-radius);
  overflow:hidden;
  background:rgba(4,24,43,.5);
}
.page-faq .faq-media img{
  display:block;
  width:100%;
  max-width:100%;
  height:auto;
  object-fit:cover;
}
.page-faq .faq-media .media__caption{
  padding:10px 14px 12px;
  font-size:12.5px;
  line-height:1.6;
  color:var(--ly-mist);
  border-top:1px solid var(--ly-line);
}

/* 对照列说明表 */
.page-faq .faq-table{
  width:100%;
  max-width:640px;
  margin-top:22px;
  border-collapse:collapse;
  font-size:14.5px;
}
.page-faq .faq-table caption{
  padding-bottom:10px;
  text-align:left;
  font-size:12px;
  letter-spacing:.14em;
  color:var(--ly-mist);
}
.page-faq .faq-table th,
.page-faq .faq-table td{
  padding:12px 14px;
  text-align:left;
  vertical-align:top;
  line-height:1.7;
  border-bottom:1px solid var(--ly-line);
}
.page-faq .faq-table th{
  font-size:12px;
  font-weight:500;
  letter-spacing:.12em;
  color:var(--ly-cyan-soft);
  background:rgba(15,58,92,.45);
}
.page-faq .faq-table td{
  color:var(--ly-mist);
}
.page-faq .faq-table td:first-child{
  font-family:var(--ly-font-mono);
  font-size:13.5px;
  color:var(--ly-white);
  white-space:nowrap;
}

/* 读法示例 */
.page-faq .faq-sample{
  list-style:none;
  max-width:640px;
  margin:22px 0 0;
  padding:18px 20px;
  border:1px dashed var(--ly-line-strong);
  border-radius:var(--ly-radius);
  background:rgba(4,24,43,.4);
  display:grid;
  gap:12px;
}
.page-faq .faq-sample li{
  position:relative;
  padding-left:32px;
  font-size:14.5px;
  line-height:1.75;
  color:var(--ly-mist);
}
.page-faq .faq-sample__no{
  position:absolute;
  left:0;
  top:.35em;
  font-family:var(--ly-font-mono);
  font-size:12px;
  letter-spacing:.04em;
  color:var(--ly-cyan);
}

/* 返回索引 */
.page-faq .faq-back{
  margin:0;
  padding-top:4px;
}
.page-faq .faq-back a{
  display:inline-block;
  padding:9px 16px;
  font-size:13px;
  letter-spacing:.04em;
  color:var(--ly-cyan-soft);
  text-decoration:none;
  border:1px solid var(--ly-line-strong);
  border-radius:var(--ly-radius);
  background:rgba(23,240,210,.05);
  transition:color .2s var(--ly-ease),background-color .2s var(--ly-ease);
}
.page-faq .faq-back a:hover,
.page-faq .faq-back a:focus-visible{
  color:var(--ly-deep);
  background:var(--ly-cyan);
}

/* ---------- 桌面端 ---------- */
@media (min-width:820px){
  .page-faq .faq-steps__list{
    grid-template-columns:repeat(3,1fr);
    gap:18px;
    align-items:start;
  }
  .page-faq .faq-step:nth-child(2){ margin-top:28px; }
  .page-faq .faq-step:nth-child(3){ margin-top:56px; }
}

@media (min-width:1000px){
  .page-faq .faq-qa{
    grid-template-columns:212px minmax(0,1fr);
    gap:clamp(36px,4.6vw,58px);
  }
  .page-faq .faq-rail{
    align-self:start;
    position:sticky;
    top:var(--faq-sticky);
  }
}

/* ---------- 窄屏 ---------- */
@media (max-width:767px){
  .page-faq .faq-hero::after{ display:none; }

  .page-faq .faq-rail__list{
    display:flex;
    flex-wrap:wrap;
    gap:6px;
  }
  .page-faq .faq-rail__link{
    border-left:1px solid var(--ly-line);
    border-radius:var(--ly-radius);
    padding:7px 10px;
    font-size:13px;
    background:rgba(4,24,43,.35);
  }
  .page-faq .faq-rail__link[aria-current="location"]{
    border-left-color:var(--ly-cyan);
  }
}

@media (max-width:640px){
  .page-faq .faq-table thead{ display:none; }
  .page-faq .faq-table,
  .page-faq .faq-table tbody,
  .page-faq .faq-table tr,
  .page-faq .faq-table td{
    display:block;
    width:100%;
  }
  .page-faq .faq-table tr{
    padding:10px 0;
    border-bottom:1px solid var(--ly-line);
  }
  .page-faq .faq-table td{
    padding:2px 0;
    border-bottom:0;
  }
  .page-faq .faq-table td:first-child{
    font-size:12.5px;
    letter-spacing:.04em;
    color:var(--ly-cyan);
    white-space:normal;
  }
}

/* ---------- 动效降级 ---------- */
@media (prefers-reduced-motion: reduce){
  .page-faq *,
  .page-faq *::before,
  .page-faq *::after{
    transition-duration:.01ms !important;
    animation-duration:.01ms !important;
  }
  .page-faq .faq-hero::after{ transform:none; }
}