/* ===== 知识中心 /knowledge/ 页面专属样式 ===== */
.page-faq{
  --faq-line:rgba(43,224,200,.16);
  --faq-line-soft:rgba(143,163,184,.22);
  --faq-cream-line:rgba(20,28,40,.14);
  display:block;
  background:var(--sea);
  color:var(--cream);
  overflow-x:hidden;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero{
  position:relative;
  padding:clamp(26px,4.5vw,52px) 0 clamp(30px,4.5vw,50px);
  background:
    radial-gradient(120% 90% at 88% -20%, rgba(43,224,200,.20), transparent 62%),
    radial-gradient(90% 80% at -10% 0%, rgba(255,122,47,.14), transparent 58%),
    linear-gradient(180deg,#0A1F3C 0%,#0E2549 100%);
  border-bottom:1px solid var(--faq-line);
}
.page-faq .faq-hero .crumbs{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  align-items:center;
  font-size:13.5px;
  color:var(--steel);
  margin-bottom:26px;
}
.page-faq .faq-hero .crumbs a{
  color:var(--cyan-soft);
  text-decoration:none;
  border-bottom:1px solid transparent;
  transition:border-color .16s ease, color .16s ease;
}
.page-faq .faq-hero .crumbs a:hover{
  color:var(--cyan);
  border-bottom-color:var(--cyan);
}
.page-faq .faq-hero h1{
  font-family:var(--font-display);
  font-weight:900;
  font-size:clamp(36px,7.4vw,86px);
  line-height:1.03;
  letter-spacing:-.02em;
  margin:12px 0 18px;
  max-width:14em;
  color:var(--cream);
  text-wrap:balance;
}
.page-faq .faq-hero .lede{
  max-width:64ch;
  margin:0;
  color:rgba(246,243,236,.82);
}

/* ---------- 搜索式钩子 ---------- */
.page-faq .faq-search{
  margin-top:28px;
  display:flex;
  align-items:center;
  gap:12px;
  padding:7px 7px 7px 20px;
  max-width:740px;
  border-radius:var(--r-pill);
  background:rgba(10,31,60,.74);
  border:1px solid var(--faq-line);
  transition:border-color .16s ease, box-shadow .16s ease, background .16s ease;
}
.page-faq .faq-search:focus-within{
  border-color:var(--cyan);
  background:rgba(10,31,60,.92);
  box-shadow:0 0 0 3px rgba(43,224,200,.18);
}
.page-faq .faq-search__icon{
  flex:none;
  display:inline-flex;
  color:var(--cyan);
}
.page-faq .faq-search__input{
  flex:1 1 auto;
  min-width:0;
  border:0;
  background:transparent;
  color:var(--cream);
  font-family:var(--font-body);
  font-size:16px;
  padding:11px 0;
  outline:none;
  -webkit-appearance:none;
  appearance:none;
}
.page-faq .faq-search__input::placeholder{
  color:var(--steel);
}
.page-faq .faq-search__count{
  flex:none;
  padding:8px 15px;
  border-radius:var(--r-pill);
  background:var(--cyan-soft);
  color:var(--sea);
  font-family:var(--font-mono);
  font-size:12.5px;
  white-space:nowrap;
  letter-spacing:.02em;
}

/* ---------- 分类胶囊 ---------- */
.page-faq .pillrow{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:24px;
}
.page-faq .pill{
  display:inline-flex;
  align-items:center;
  padding:10px 19px;
  border-radius:var(--r-pill);
  border:1px solid var(--faq-line-soft);
  background:rgba(18,48,85,.6);
  color:var(--cream);
  font-size:14.5px;
  font-weight:600;
  text-decoration:none;
  transition:background .16s ease, border-color .16s ease, color .16s ease, transform .16s ease;
}
.page-faq .pill:hover,
.page-faq .pill:focus-visible{
  background:var(--cyan);
  border-color:var(--cyan);
  color:var(--sea);
  transform:translateY(-2px);
  outline:none;
}
.page-faq .pill:focus-visible{
  box-shadow:0 0 0 2px var(--sea), 0 0 0 4px var(--cyan);
}

/* ---------- 顶部横幅 ---------- */
.page-faq .faq-banner{
  position:relative;
  margin:0;
  border-bottom:1px solid var(--faq-line);
  overflow:hidden;
  background:linear-gradient(120deg,#0A1F3C,#123055);
}
.page-faq .faq-banner img{
  display:block;
  width:100%;
  height:auto;
  max-height:min(42vh,380px);
  object-fit:cover;
  opacity:.86;
}
.page-faq .faq-banner__caption{
  position:absolute;
  left:24px;
  bottom:18px;
  padding:8px 16px;
  border-radius:var(--r-pill);
  background:rgba(10,31,60,.78);
  border:1px solid var(--faq-line);
  color:var(--cyan-soft);
  font-size:13px;
  letter-spacing:.02em;
}

/* ---------- 区块基础 ---------- */
.page-faq .faq-block{
  padding:clamp(46px,7vw,86px) 0;
  position:relative;
}
.page-faq .faq-block--tight{
  padding:clamp(34px,5vw,60px) 0;
}
.page-faq .faq-block--deep{
  background:
    radial-gradient(80% 60% at 100% 0%, rgba(43,224,200,.12), transparent 60%),
    var(--navy);
  border-top:1px solid var(--faq-line);
  border-bottom:1px solid var(--faq-line);
}
.page-faq .faq-block--cream{
  background:var(--cream);
  color:var(--ink);
}
.page-faq .faq-block .section-head{
  max-width:780px;
  margin-bottom:clamp(26px,4vw,42px);
}
.page-faq .faq-block h2{
  margin:10px 0 14px;
  font-weight:900;
  letter-spacing:-.01em;
  line-height:1.15;
}
.page-faq .faq-block--cream h2{
  color:var(--ink);
}
.page-faq .faq-block--cream .eyebrow{
  color:#0E7A6B;
}
.page-faq .faq-block--cream .lede{
  color:rgba(20,28,40,.72);
}
.page-faq .faq-block--cream p{
  color:rgba(20,28,40,.78);
}

/* ---------- 问答折叠 ---------- */
.page-faq .qa-grid{
  display:grid;
  gap:12px;
  max-width:960px;
}
.page-faq .qa{
  border:1px solid var(--faq-line);
  border-radius:var(--r-md);
  background:linear-gradient(180deg,rgba(18,48,85,.88),rgba(18,48,85,.55));
  overflow:hidden;
  transition:border-color .16s ease, transform .16s ease, box-shadow .16s ease;
}
.page-faq .qa:hover{
  border-color:rgba(43,224,200,.42);
  transform:translateY(-4px);
  box-shadow:var(--shadow-1);
}
.page-faq .qa[open]{
  border-color:rgba(43,224,200,.5);
}
.page-faq .qa__q{
  position:relative;
  display:flex;
  align-items:flex-start;
  gap:14px;
  padding:18px 22px;
  cursor:pointer;
  list-style:none;
  font-size:17px;
  font-weight:600;
  line-height:1.55;
  color:var(--cream);
  transition:color .16s ease;
}
.page-faq .qa__q::-webkit-details-marker{
  display:none;
}
.page-faq .qa__q::before{
  content:"";
  position:absolute;
  left:0;
  top:14px;
  bottom:14px;
  width:3px;
  border-radius:0 3px 3px 0;
  background:var(--orange);
  opacity:0;
  transition:opacity .16s ease;
}
.page-faq .qa[open] .qa__q::before{
  opacity:1;
}
.page-faq .qa__q::after{
  content:"+";
  margin-left:auto;
  padding-left:14px;
  flex:none;
  font-family:var(--font-mono);
  font-size:19px;
  line-height:1.2;
  color:var(--cyan);
  transition:transform .16s ease, color .16s ease;
}
.page-faq .qa[open] .qa__q::after{
  content:"−";
  color:var(--cyan-soft);
}
.page-faq .qa__q:focus-visible{
  outline:2px solid var(--cyan);
  outline-offset:-4px;
}
.page-faq .qa__num{
  flex:none;
  padding-top:4px;
  font-family:var(--font-mono);
  font-size:12.5px;
  letter-spacing:.08em;
  color:var(--steel);
  transition:color .16s ease;
}
.page-faq .qa[open] .qa__num{
  color:var(--cyan);
}
.page-faq .qa__text{
  flex:1 1 auto;
}
.page-faq .qa__a{
  padding:0 22px 20px 22px;
  max-width:64ch;
  font-size:16px;
  line-height:1.78;
  color:rgba(246,243,236,.84);
}

/* ---------- 变更说明流程 ---------- */
.page-faq .flow{
  display:grid;
  gap:26px;
}
.page-faq .flow__steps{
  display:grid;
  gap:14px;
}
.page-faq .step{
  position:relative;
  padding:22px 24px;
  border-radius:var(--r-md);
  background:rgba(10,31,60,.62);
  border:1px solid var(--faq-line);
  transition:border-color .16s ease, transform .16s ease;
}
.page-faq .step:hover{
  border-color:rgba(43,224,200,.42);
  transform:translateY(-4px);
}
.page-faq .step__num{
  display:inline-block;
  font-family:var(--font-mono);
  font-size:13px;
  letter-spacing:.14em;
  color:var(--sea);
  background:var(--cyan);
  border-radius:var(--r-pill);
  padding:4px 12px;
}
.page-faq .step h3{
  margin:12px 0 8px;
  font-size:19px;
  font-weight:800;
  color:var(--cream);
  letter-spacing:-.01em;
}
.page-faq .step p{
  margin:0;
  font-size:15.5px;
  line-height:1.75;
  color:rgba(246,243,236,.8);
}
.page-faq .flow__media{
  margin:0;
  position:relative;
  border-radius:var(--r-lg);
  overflow:hidden;
  border:1px solid var(--faq-line);
  background:linear-gradient(150deg,#0A1F3C,#123055);
}
.page-faq .flow__media img{
  display:block;
  width:100%;
  height:auto;
  object-fit:cover;
  aspect-ratio:4 / 3;
}
.page-faq .flow__media figcaption{
  position:absolute;
  left:16px;
  right:16px;
  bottom:14px;
  padding:9px 16px;
  border-radius:var(--r-pill);
  background:rgba(10,31,60,.8);
  border:1px solid var(--faq-line);
  color:var(--cyan-soft);
  font-size:13px;
}

/* ---------- 账号与权益 ---------- */
.page-faq .tri{
  display:grid;
  gap:14px;
}
.page-faq .tri__item{
  position:relative;
  padding:24px;
  border-radius:var(--r-lg);
  background:linear-gradient(160deg,rgba(43,224,200,.10),rgba(18,48,85,.72) 58%);
  border:1px solid var(--faq-line);
  overflow:hidden;
  transition:border-color .16s ease, transform .16s ease;
}
.page-faq .tri__item:hover{
  border-color:rgba(43,224,200,.42);
  transform:translateY(-4px);
}
.page-faq .tri__item h3{
  margin:0 0 10px;
  font-size:18px;
  font-weight:800;
  color:var(--cyan);
  letter-spacing:.01em;
}
.page-faq .tri__item p{
  margin:0;
  font-size:15.5px;
  line-height:1.75;
  color:rgba(246,243,236,.8);
}
.page-faq .note-line{
  margin:22px 0 0;
  padding:4px 0 4px 18px;
  border-left:3px solid var(--cyan);
  max-width:72ch;
  font-size:15.5px;
  line-height:1.78;
  color:rgba(246,243,236,.82);
}

/* ---------- 资料库定义列表 ---------- */
.page-faq .data-list{
  display:grid;
  gap:0;
  max-width:960px;
}
.page-faq .data-list__row{
  display:grid;
  gap:6px;
  padding:18px 0;
  border-bottom:1px dashed var(--faq-cream-line);
}
.page-faq .data-list__key{
  font-weight:800;
  font-size:16px;
  color:var(--ink);
}
.page-faq .data-list__val{
  font-size:15.5px;
  line-height:1.75;
  color:rgba(20,28,40,.74);
}

/* ---------- 纠错 ---------- */
.page-faq .fixbox{
  display:grid;
  gap:16px;
  padding:clamp(22px,4vw,34px);
  max-width:940px;
  border-radius:var(--r-lg);
  background:rgba(43,224,200,.09);
  border:1px solid var(--faq-cream-line);
}
.page-faq .fixbox p{
  margin:0;
  max-width:62ch;
  font-size:15.5px;
  line-height:1.78;
}
.page-faq .fixbox .btn{
  justify-self:start;
}

/* ---------- 术语表 ---------- */
.page-faq .glossary{
  display:grid;
  gap:0;
  margin:0;
  max-width:1080px;
}
.page-faq .glossary__row{
  padding:15px 0;
  border-bottom:1px dashed var(--faq-cream-line);
}
.page-faq .glossary dt{
  margin:0 0 5px;
  font-size:16.5px;
  font-weight:800;
  color:var(--ink);
  letter-spacing:-.01em;
}
.page-faq .glossary dd{
  margin:0;
  font-size:15.5px;
  line-height:1.72;
  color:rgba(20,28,40,.74);
}

/* ---------- 页尾动作 ---------- */
.page-faq .faq-foot{
  background:
    radial-gradient(70% 90% at 10% 0%, rgba(255,122,47,.14), transparent 60%),
    var(--sea);
  border-top:1px solid var(--faq-line);
  padding:clamp(40px,6vw,72px) 0;
}
.page-faq .faq-foot h2{
  margin:0 0 12px;
  color:var(--cream);
  font-weight:900;
  letter-spacing:-.01em;
}
.page-faq .faq-foot p{
  margin:0 0 24px;
  max-width:60ch;
  font-size:16px;
  line-height:1.75;
  color:rgba(246,243,236,.78);
}
.page-faq .faq-more{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  align-items:center;
}

/* ---------- 窄屏 ---------- */
@media (max-width:600px){
  .page-faq .faq-search{
    padding:6px 6px 6px 16px;
  }
  .page-faq .faq-search__count{
    display:none;
  }
  .page-faq .faq-banner__caption{
    left:14px;
    right:14px;
    bottom:12px;
    font-size:12px;
    text-align:center;
  }
  .page-faq .qa__q{
    padding:16px 16px;
    font-size:16px;
  }
  .page-faq .qa__a{
    padding:0 16px 18px 16px;
    font-size:15.5px;
  }
}

/* ---------- 中屏起展开栅格 ---------- */
@media (min-width:768px){
  .page-faq .data-list__row{
    grid-template-columns:190px 1fr;
    gap:26px;
    align-items:baseline;
  }
  .page-faq .glossary{
    grid-template-columns:1fr 1fr;
    column-gap:56px;
  }
  .page-faq .fixbox{
    grid-template-columns:1fr;
  }
}

@media (min-width:900px){
  .page-faq .flow{
    grid-template-columns:1.5fr 1fr;
    gap:36px;
    align-items:start;
  }
  .page-faq .tri{
    grid-template-columns:repeat(3,1fr);
  }
}

@media (min-width:1024px){
  .page-faq .faq-hero{
    padding-top:clamp(36px,4vw,64px);
  }
  .page-faq .flow__media{
    position:sticky;
    top:32px;
  }
}

@media (prefers-reduced-motion:reduce){
  .page-faq .qa,
  .page-faq .step,
  .page-faq .tri__item,
  .page-faq .pill{
    transition:none;
  }
  .page-faq .qa:hover,
  .page-faq .step:hover,
  .page-faq .tri__item:hover,
  .page-faq .pill:hover{
    transform:none;
  }
}