/* ============================================================
   changjian-wenti.html 专属样式 · 高频问答折叠
   ============================================================ */

/* ---------- 首屏 ---------- */
.faq-hero{position:relative;min-height:72vh;display:flex;align-items:center;overflow:hidden;background:var(--mix-bg)}
.faq-hero-bg{position:absolute;inset:0}
.faq-hero-bg img{width:100%;height:100%;object-fit:cover}
.faq-hero-mask{position:absolute;inset:0;background:linear-gradient(100deg,rgba(255,255,255,.96) 8%,rgba(255,255,255,.86) 48%,rgba(241,238,251,.45) 100%)}
.faq-hero-inner{position:relative;z-index:2;padding:150px 0 110px;max-width:720px}
.faq-kicker{display:inline-block;padding:8px 18px;border-radius:999px;background:rgba(255,255,255,.78);border:1px solid rgba(124,111,208,.3);color:var(--purple);font-weight:600;font-size:.9rem;letter-spacing:2px}
.faq-title{font-size:clamp(1.9rem,4.2vw,3rem);font-weight:800;line-height:1.3;margin:22px 0 18px}
.faq-title span{display:block}
.faq-title em{font-style:normal;background:linear-gradient(120deg,var(--blue),var(--purple));-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.faq-sub{color:var(--ink-2);font-size:1.04rem;margin-bottom:28px;max-width:620px}
.faq-actions{display:flex;flex-wrap:wrap;gap:14px}
.hl{opacity:0;animation:faqUp .8s cubic-bezier(.22,.9,.3,1) forwards}
.d1{animation-delay:.15s}.d2{animation-delay:.3s}.d3{animation-delay:.45s}.d4{animation-delay:.6s}
@keyframes faqUp{from{opacity:0;transform:translateY(30px)}to{opacity:1;transform:none}}
@media (prefers-reduced-motion:reduce){.hl{opacity:1;animation:none}}
.faq-hero-wave{position:absolute;left:0;right:0;bottom:-1px;z-index:4}
.faq-hero-wave svg{display:block;width:100%;height:60px}

/* ---------- 分类速跳 ---------- */
.faq-cat{background:#fff;overflow:hidden}
.faq-cat::before{content:"";position:absolute;width:300px;height:300px;border-radius:50%;background:radial-gradient(circle,rgba(59,143,212,.12),transparent 70%);top:-90px;left:-90px;pointer-events:none}
.faq-cat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.cat-card{
  display:block;background:var(--blue-bg);border:1px solid transparent;padding:26px 22px;
  border-radius:var(--r-lg) var(--r-sm) var(--r-lg) var(--r-sm);
  transition:transform .3s,box-shadow .3s,background .3s;
}
.cat-card:nth-child(even){background:var(--purple-bg)}
.cat-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-2)}
.cat-card .ico{width:30px;height:30px;color:var(--blue);margin-bottom:14px}
.cat-card:nth-child(even) .ico{color:var(--purple)}
.cat-card h3{font-size:1.08rem;margin-bottom:8px}
.cat-card p{font-size:.88rem;color:var(--ink-2)}

/* ---------- 问答折叠 ---------- */
.faq-list-sec{background:var(--mix-bg);overflow:hidden}
.faq-list-sec::after{content:"";position:absolute;width:340px;height:340px;border-radius:50%;background:radial-gradient(circle,rgba(124,111,208,.12),transparent 70%);bottom:-120px;right:-100px;pointer-events:none}
.faq-cat-title{
  font-size:1.25rem;font-weight:800;margin:46px 0 18px;padding-left:14px;
  border-left:4px solid var(--blue);
}
.faq-cat-title:nth-of-type(even){border-left-color:var(--purple)}
.faq-list{display:flex;flex-direction:column;gap:13px;max-width:880px}
.f-item{
  background:#fff;border:1px solid var(--line);
  border-radius:var(--r-md) var(--r-lg) var(--r-md) var(--r-lg);
  padding:19px 24px;transition:box-shadow .3s,border-color .3s;
}
.f-item:hover{box-shadow:var(--shadow);border-color:rgba(59,143,212,.3)}
.f-item summary{
  cursor:pointer;font-weight:700;font-size:1.03rem;list-style:none;
  display:flex;justify-content:space-between;align-items:center;gap:14px;
}
.f-item summary::-webkit-details-marker{display:none}
.f-item summary::after{
  content:"+";flex-shrink:0;width:26px;height:26px;border-radius:9px;
  background:var(--blue-bg);color:var(--blue);
  display:flex;align-items:center;justify-content:center;
  font-size:1.15rem;transition:transform .25s,background .25s,color .25s;
}
.f-item[open] summary::after{transform:rotate(45deg);background:var(--purple-bg);color:var(--purple)}
.f-item p{margin-top:12px;color:var(--ink-2);font-size:.95rem;line-height:1.85}
.f-item p a{color:var(--blue);font-weight:600}
.f-item p a:hover{color:var(--purple)}

/* ---------- 还没找到答案 ---------- */
.faq-more{background:#fff}
.faq-more-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.more-card{
  display:block;padding:24px 22px;background:var(--mix-bg);
  border-radius:var(--r-sm) var(--r-lg) var(--r-sm) var(--r-lg);
  border:1px solid transparent;transition:transform .3s,box-shadow .3s,border-color .3s;
}
.more-card:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:rgba(124,111,208,.35)}
.more-card h3{font-size:1.05rem;margin-bottom:8px;color:var(--purple)}
.more-card p{font-size:.88rem;color:var(--ink-2)}

/* ---------- 互链 ---------- */
.faq-links{background:var(--mix-bg)}
.faq-link-wrap{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.lk-card{display:block;padding:22px 22px;border:1px solid var(--line);border-radius:var(--r-md);background:#fff;transition:transform .3s,box-shadow .3s}
.lk-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-2)}
.lk-card b{display:block;font-size:1.03rem;margin-bottom:6px}
.lk-card span{font-size:.87rem;color:var(--ink-2)}

/* ---------- 资讯 ---------- */
.faq-news{background:#fff}
.faq-news-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.nw-card{display:block;background:#fff;border-radius:var(--r-md);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow);transition:transform .3s,box-shadow .3s}
.nw-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-2)}
.nw-card img{width:100%;height:150px;object-fit:cover}
.nw-body{padding:14px 16px 16px}
.nw-body h3{font-size:.92rem;line-height:1.5;margin-bottom:8px}
.nw-body time{font-size:.8rem;color:var(--ink-3)}
.faq-news-more{text-align:center;margin-top:36px}

/* ---------- CTA ---------- */
.faq-cta{background:var(--mix-bg)}
.faq-cta-inner{
  position:relative;overflow:hidden;text-align:center;
  background:linear-gradient(135deg,var(--blue) 0%,var(--purple) 100%);
  border-radius:var(--r-lg) var(--r-sm) var(--r-lg) var(--r-sm);
  padding:60px 8%;color:#fff;box-shadow:var(--shadow-2);
}
.faq-cta-inner h2{font-size:clamp(1.4rem,2.6vw,2rem);font-weight:800;margin-bottom:14px}
.faq-cta-inner p{color:rgba(255,255,255,.92);max-width:620px;margin:0 auto 24px}
.faq-cta-contact{display:flex;justify-content:center;flex-wrap:wrap;gap:14px 34px;margin-bottom:28px}
.faq-cta-contact li{display:flex;align-items:center;gap:8px;font-size:1.05rem;font-weight:600}
.faq-cta-contact a{color:#fff}
.faq-cta-actions{display:flex;justify-content:center}
.faq-cta-actions .btn{background:#fff;color:var(--blue)}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .faq-cat-grid,.faq-more-grid{grid-template-columns:repeat(2,1fr)}
  .faq-news-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:767px){
  .faq-cat-grid,.faq-more-grid,.faq-link-wrap,.faq-news-grid{grid-template-columns:1fr}
}
.footer-contact .ico,.faq-cta-contact .ico{width:20px;height:20px}

/* ---------- 怎么用这页（导语散文） ---------- */
.faq-use{background:#fff;overflow:hidden}
.faq-use-inner{max-width:820px;margin:0 auto;line-height:1.95;color:var(--ink-2)}
.faq-use-inner p{margin:0 0 16px;font-size:1.02rem}
.faq-use-inner p:last-child{margin-bottom:0}

/* ---------- 按阶段求助导览 ---------- */
.faq-stage{background:linear-gradient(180deg,#fff 0%,#f6f8fd 100%)}
.faq-stage-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:36px}
.stage-card{
  background:#fff;border:1px solid rgba(124,111,208,.18);border-radius:var(--r-md);
  padding:22px 20px;position:relative;
}
.stage-num{
  display:inline-flex;align-items:center;justify-content:center;
  width:32px;height:32px;border-radius:50%;
  background:linear-gradient(135deg,var(--blue),var(--purple));
  color:#fff;font-weight:700;font-size:.9rem;margin-bottom:12px;
}
.stage-card h3{font-size:1.02rem;margin:0 0 8px;font-weight:700;color:var(--ink)}
.stage-card p{font-size:.92rem;color:var(--ink-2);margin:0;line-height:1.7}
@media (max-width:960px){.faq-stage-grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:600px){.faq-stage-grid{grid-template-columns:1fr}}