.page-faq{
  --faq-text:#C9D0DA;
  --faq-edge:rgba(185,191,201,.26);
  --faq-line:rgba(185,191,201,.16);
  background:var(--ink);
  color:var(--on-dark);
  font-family:var(--font-body);
  overflow-x:hidden;
  padding-bottom:clamp(44px,7vw,88px);
}

.page-faq h2{
  font-family:var(--font-display);
  font-size:clamp(21px,3.2vw,32px);
  line-height:1.16;
  font-weight:800;
  letter-spacing:-.005em;
  color:var(--paper);
  margin:6px 0 0;
}

.page-faq a{
  color:inherit;
}

/* ---------- 面包屑 ---------- */
.page-faq .crumbs ol{
  display:flex;
  flex-wrap:wrap;
  gap:6px;
  list-style:none;
  margin:0;
  padding:0;
  font-size:12.5px;
  letter-spacing:.02em;
}
.page-faq .crumbs li{
  display:flex;
  align-items:center;
}
.page-faq .crumbs li + li::before{
  content:"/";
  margin-right:6px;
  color:var(--mid);
  font-family:var(--font-mono);
}
.page-faq .crumbs a{
  color:var(--on-dark-dim);
  text-decoration:none;
  transition:color var(--dur) var(--ease);
}
.page-faq .crumbs a:hover,
.page-faq .crumbs a:focus-visible{
  color:var(--paper);
}
.page-faq .crumbs [aria-current]{
  color:var(--paper);
  font-weight:700;
}

.page-faq .eyebrow{
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--lime);
  margin:18px 0 0;
}

/* ---------- 首屏 ---------- */
.page-faq .kb-hero{
  position:relative;
  background:
    radial-gradient(120% 90% at 92% 0%, rgba(30,91,255,.22) 0%, rgba(7,19,36,0) 62%),
    linear-gradient(158deg,#0B1524 0%, var(--ink) 100%);
  border-bottom:3px solid var(--red);
  padding:clamp(20px,4vw,38px) clamp(16px,4vw,40px) clamp(28px,5vw,54px);
}
.page-faq .kb-hero__grid{
  display:grid;
  gap:clamp(20px,3vw,34px);
  max-width:var(--shell);
  margin:0 auto;
  align-items:end;
}
.page-faq .kb-hero h1{
  font-family:var(--font-display);
  font-size:clamp(29px,6vw,58px);
  line-height:1.05;
  letter-spacing:-.012em;
  font-weight:800;
  color:var(--paper);
  margin:10px 0 0;
  max-width:16ch;
}
.page-faq .kb-hero .lead{
  color:var(--faq-text);
  font-size:clamp(15px,1.6vw,17px);
  line-height:1.75;
  max-width:54ch;
  margin:16px 0 0;
}
.page-faq .kb-hero__chips{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  list-style:none;
  margin:22px 0 0;
  padding:0;
}
.page-faq .kb-hero__chips a{
  display:inline-block;
  padding:7px 13px;
  border:1px solid var(--faq-edge);
  border-radius:var(--radius);
  background:rgba(255,255,255,.04);
  color:var(--paper);
  font-size:13px;
  font-weight:700;
  text-decoration:none;
  transition:background var(--dur) var(--ease),border-color var(--dur) var(--ease),transform var(--dur) var(--ease);
}
.page-faq .kb-hero__chips a:hover,
.page-faq .kb-hero__chips a:focus-visible{
  border-color:var(--blue);
  background:rgba(30,91,255,.18);
  transform:translateY(-2px);
}
.page-faq .kb-hero__figure{
  position:relative;
  margin:0;
  border:1px solid var(--faq-edge);
  background:var(--panel);
  box-shadow:var(--shadow-lift);
}
.page-faq .kb-hero__figure::after{
  content:"";
  position:absolute;
  top:0;
  right:0;
  width:88px;
  height:8px;
  background:var(--lime);
}
.page-faq .kb-hero__figure img{
  display:block;
  width:100%;
  max-width:100%;
  height:auto;
  aspect-ratio:3/2;
  object-fit:cover;
  filter:saturate(.92) contrast(1.04);
}

/* ---------- 高频速查 ---------- */
.page-faq .kb-quick{
  max-width:var(--shell);
  margin:clamp(28px,4.5vw,52px) auto 0;
  padding:0 clamp(16px,4vw,40px);
}
.page-faq .kb-quick__head{
  margin-bottom:6px;
}
.page-faq .kb-quick__list{
  list-style:none;
  margin:14px 0 0;
  padding:0;
  border-top:2px solid var(--red);
}
.page-faq .kb-quick__item{
  display:grid;
  gap:6px;
  padding:18px 0;
  border-bottom:1px solid var(--faq-line);
}
.page-faq .kb-quick__num{
  font-family:var(--font-mono);
  font-size:12.5px;
  font-weight:700;
  letter-spacing:.1em;
  color:var(--lime);
  font-variant-numeric:tabular-nums;
}
.page-faq .kb-quick__q{
  margin:0;
  font-size:16px;
  font-weight:700;
  line-height:1.5;
  color:var(--paper);
}
.page-faq .kb-quick__a{
  margin:0;
  font-size:14.5px;
  line-height:1.75;
  color:var(--faq-text);
  max-width:64ch;
}
.page-faq .kb-quick__go{
  justify-self:start;
  font-size:13px;
  font-weight:700;
  text-decoration:none;
  color:var(--paper);
  border-bottom:1px solid var(--blue);
  padding-bottom:2px;
  transition:border-color var(--dur) var(--ease),color var(--dur) var(--ease);
}
.page-faq .kb-quick__go:hover,
.page-faq .kb-quick__go:focus-visible{
  border-bottom-color:var(--lime);
}

/* ---------- 主体两栏 ---------- */
.page-faq .kb-layout{
  max-width:var(--shell);
  margin:clamp(30px,5vw,62px) auto 0;
  padding:0 clamp(16px,4vw,40px);
  display:grid;
  gap:clamp(20px,3vw,40px);
  align-items:start;
}
.page-faq .kb-rail{
  border:1px solid var(--faq-edge);
  background:var(--panel);
  padding:14px 12px;
}
.page-faq .kb-rail__title{
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.15em;
  text-transform:uppercase;
  color:var(--on-dark-dim);
  margin:0 0 10px;
}
.page-faq .kb-rail__list{
  list-style:none;
  margin:0;
  padding:0;
  display:flex;
  flex-wrap:wrap;
  gap:6px;
}
.page-faq .kb-rail__list a{
  display:flex;
  align-items:baseline;
  gap:8px;
  padding:7px 11px;
  border:1px solid var(--faq-edge);
  border-radius:var(--radius);
  color:var(--paper);
  font-size:13px;
  font-weight:700;
  text-decoration:none;
  transition:background var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.page-faq .kb-rail__list a:hover,
.page-faq .kb-rail__list a:focus-visible{
  background:rgba(30,91,255,.16);
  border-color:var(--blue);
}
.page-faq .kb-rail__list .num{
  font-family:var(--font-mono);
  font-size:11px;
  font-weight:700;
  letter-spacing:.08em;
  color:var(--on-dark-dim);
  font-variant-numeric:tabular-nums;
}

/* ---------- 分组 ---------- */
.page-faq .kb-group{
  margin-top:clamp(30px,4.5vw,48px);
  scroll-margin-top:calc(var(--header-h) + 16px);
}
.page-faq .kb-body > .kb-group:first-child{
  margin-top:0;
}
.page-faq .kb-group__head{
  display:flex;
  align-items:baseline;
  flex-wrap:wrap;
  gap:8px 12px;
  padding-bottom:10px;
  border-bottom:2px solid var(--red);
}
.page-faq .kb-group__num{
  font-family:var(--font-mono);
  font-size:12px;
  font-weight:700;
  letter-spacing:.08em;
  color:var(--paper);
  background:var(--red);
  padding:2px 7px;
  border-radius:var(--radius);
  font-variant-numeric:tabular-nums;
}
.page-faq .kb-group__tags{
  display:flex;
  flex-wrap:wrap;
  gap:6px;
  margin:0 0 0 auto;
  padding:0;
}
.page-faq .kb-group__tag{
  font-size:11.5px;
  font-weight:700;
  letter-spacing:.04em;
  color:var(--on-dark-dim);
  border:1px solid var(--faq-edge);
  border-radius:var(--radius);
  padding:2px 8px;
}

/* ---------- 手风琴 ---------- */
.page-faq .kb-list{
  list-style:none;
  margin:14px 0 0;
  padding:0;
  border-top:1px solid var(--faq-line);
}
.page-faq .kb-list > li{
  border-bottom:1px solid var(--faq-line);
}
.page-faq .kb-acc{
  background:transparent;
  transition:background var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.page-faq .kb-acc[open]{
  background:rgba(30,91,255,.08);
  box-shadow:inset 3px 0 0 var(--red);
}
.page-faq .kb-acc summary{
  position:relative;
  display:block;
  list-style:none;
  cursor:pointer;
  padding:15px 52px 15px 18px;
  font-size:15.5px;
  font-weight:700;
  line-height:1.55;
  color:var(--paper);
  transition:color var(--dur) var(--ease);
}
.page-faq .kb-acc summary::-webkit-details-marker{
  display:none;
}
.page-faq .kb-acc summary::marker{
  content:"";
}
.page-faq .kb-acc summary::after{
  content:"+";
  position:absolute;
  top:50%;
  right:16px;
  transform:translateY(-50%);
  font-family:var(--font-mono);
  font-size:20px;
  line-height:1;
  font-weight:700;
  color:var(--lime);
  transition:color var(--dur) var(--ease);
}
.page-faq .kb-acc[open] summary::after{
  content:"−";
  color:var(--red);
}
.page-faq .kb-acc summary:hover{
  color:var(--white);
}
.page-faq .kb-acc summary:focus-visible{
  outline:2px solid var(--blue);
  outline-offset:-2px;
}
.page-faq .kb-acc__a{
  padding:2px 18px 18px;
  color:var(--faq-text);
  font-size:14.5px;
  line-height:1.8;
  max-width:66ch;
}
.page-faq .kb-acc__a a{
  color:var(--paper);
  font-weight:700;
  text-decoration:underline;
  text-decoration-thickness:1px;
  text-underline-offset:3px;
  text-decoration-color:var(--blue);
}
.page-faq .kb-acc__a a:hover,
.page-faq .kb-acc__a a:focus-visible{
  text-decoration-color:var(--lime);
}

/* ---------- 章节配图 ---------- */
.page-faq .kb-figure{
  margin:16px 0 0;
  border:1px solid var(--faq-edge);
  background:var(--panel);
  padding:8px;
}
.page-faq .kb-figure img{
  display:block;
  width:100%;
  max-width:100%;
  height:auto;
  aspect-ratio:10/7;
  object-fit:cover;
}
.page-faq .kb-figure figcaption{
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.06em;
  line-height:1.6;
  color:var(--on-dark-dim);
  padding:8px 2px 0;
}

/* ---------- 仍需帮助 ---------- */
.page-faq .kb-help{
  max-width:var(--shell);
  margin:clamp(34px,5vw,70px) auto 0;
  padding:0 clamp(16px,4vw,40px);
}
.page-faq .kb-help__inner{
  display:grid;
  gap:24px;
  padding:clamp(20px,3.4vw,40px);
  border:1px solid var(--faq-edge);
  border-top:3px solid var(--lime);
  background:linear-gradient(145deg,var(--navy) 0%,#0C1B30 58%,var(--panel) 100%);
}
.page-faq .kb-help__lead p{
  color:var(--faq-text);
  font-size:14.5px;
  line-height:1.8;
  max-width:50ch;
  margin:12px 0 0;
}
.page-faq .kb-help__actions{
  margin:20px 0 0;
}
.page-faq .kb-help__list{
  list-style:none;
  margin:0;
  padding:0;
  display:grid;
  gap:1px;
  background:var(--faq-line);
  border:1px solid var(--faq-edge);
}
.page-faq .kb-help__list li{
  display:grid;
  gap:3px;
  padding:11px 13px;
  background:rgba(7,19,36,.62);
}
.page-faq .kb-help__k{
  font-size:11.5px;
  font-weight:700;
  letter-spacing:.08em;
  color:var(--on-dark-dim);
}
.page-faq .kb-help__v{
  font-family:var(--font-mono);
  font-size:13.5px;
  line-height:1.6;
  color:var(--paper);
  word-break:break-word;
}

/* ---------- 断点 ---------- */
@media (min-width:760px){
  .page-faq .kb-quick__item{
    grid-template-columns:64px minmax(0,1fr) auto;
    grid-template-areas:
      "num q go"
      "num a go";
    column-gap:22px;
    align-items:start;
    padding:20px 0;
  }
  .page-faq .kb-quick__num{grid-area:num;padding-top:3px;}
  .page-faq .kb-quick__q{grid-area:q;}
  .page-faq .kb-quick__a{grid-area:a;}
  .page-faq .kb-quick__go{grid-area:go;justify-self:end;margin-top:3px;}
  .page-faq .kb-help__list li{
    grid-template-columns:104px minmax(0,1fr);
    align-items:baseline;
    gap:12px;
  }
}

@media (min-width:900px){
  .page-faq .kb-hero__grid{
    grid-template-columns:minmax(0,1.06fr) minmax(0,.94fr);
    gap:clamp(28px,4vw,56px);
  }
  .page-faq .kb-hero__figure img{
    aspect-ratio:4/3;
  }
  .page-faq .kb-figure{
    max-width:560px;
  }
}

@media (min-width:960px){
  .page-faq .kb-layout{
    grid-template-columns:210px minmax(0,1fr);
    gap:clamp(32px,3.2vw,48px);
  }
  .page-faq .kb-rail{
    position:sticky;
    top:calc(var(--header-h) + 20px);
  }
  .page-faq .kb-rail__list{
    display:grid;
    gap:1px;
  }
  .page-faq .kb-rail__list a{
    border:0;
    border-left:3px solid transparent;
    border-radius:0;
    padding:9px 8px;
    font-size:14px;
  }
  .page-faq .kb-rail__list a:hover,
  .page-faq .kb-rail__list a:focus-visible{
    border-left-color:var(--blue);
    background:rgba(30,91,255,.16);
  }
  .page-faq .kb-acc summary{
    padding:17px 58px 17px 22px;
    font-size:16.5px;
  }
  .page-faq .kb-acc__a{
    padding:2px 22px 20px 22px;
    font-size:15px;
  }
  .page-faq .kb-help__inner{
    grid-template-columns:minmax(0,1fr) minmax(0,.92fr);
    gap:clamp(32px,4vw,56px);
    align-items:start;
  }
}

@media (prefers-reduced-motion:reduce){
  .page-faq .kb-hero__chips a,
  .page-faq .kb-acc,
  .page-faq .kb-acc summary,
  .page-faq .kb-rail__list a{
    transition:none;
  }
  .page-faq .kb-hero__chips a:hover{
    transform:none;
  }
}