/* ============================================================
   solution-electrical.css — 电气行业方案页
   采购引用清单 + 深色五步轨道 + 左文右图做法 + 三卡案例 + 金色 CTA
   ============================================================ */

/* ---------- 引用清单 ---------- */
.selec-quotes-sec{background:var(--white)}
.selec-quotes{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.selec-quote{
  position:relative;background:var(--mist);border:1px solid var(--line);
  border-radius:14px;padding:34px 26px 26px;transition:all .35s ease;
}
.selec-quote:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:var(--gold-2)}
.selec-quote-mark{
  position:absolute;top:12px;left:18px;
  font-family:var(--font-serif);font-size:64px;line-height:1;color:var(--gold-2);opacity:.5;
}
.selec-quote p{position:relative;font-size:15px;line-height:1.95;color:var(--ink-2);margin-bottom:16px}
.selec-quote cite{
  display:block;font-style:normal;font-size:12.5px;color:var(--gray);
  letter-spacing:1px;border-top:1px solid var(--line);padding-top:12px;
}
.selec-quotes-note{
  max-width:860px;margin:44px auto 0;text-align:center;font-size:15px;color:var(--gray);line-height:2;
}
.selec-quotes-note strong{color:var(--gold-3)}

/* ---------- 深色五步轨道 ---------- */
.selec-flow{position:relative;overflow:hidden}
.selec-flow-track{
  list-style:none;display:grid;grid-template-columns:repeat(5,1fr);gap:18px;
  position:relative;
}
.selec-flow-track::before{
  content:"";position:absolute;top:34px;left:10%;right:10%;height:1px;
  background:linear-gradient(90deg,transparent,rgba(217,190,133,.5),transparent);
}
.selec-flow-step{position:relative;text-align:center;padding:0 8px}
.selec-flow-icon{
  position:relative;z-index:2;
  width:68px;height:68px;margin:0 auto 18px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:var(--ink);border:1px solid var(--gold-2);color:var(--gold-2);
}
.selec-flow-icon svg{width:30px;height:30px}
.selec-flow-step h3{color:#fff;font-size:16px;margin-bottom:10px}
.selec-flow-step p{font-size:12.5px;line-height:1.85;color:#B7B3A8}

/* ---------- 做法：左文右图 ---------- */
.selec-how-inner{display:grid;grid-template-columns:1.1fr .9fr;gap:60px;align-items:center}
.selec-how-item{padding:18px 0;border-bottom:1px solid var(--line)}
.selec-how-item:last-child{border-bottom:0}
.selec-how-item h3{font-size:18px;margin-bottom:8px}
.selec-how-item p{font-size:14px;line-height:1.95;color:var(--gray)}
.selec-how-item a{color:var(--gold-3);font-weight:600;border-bottom:1px dashed var(--gold)}
.selec-how-media img{border-radius:16px;box-shadow:var(--shadow)}
.selec-how-media figcaption{
  margin-top:14px;font-size:12.5px;color:var(--gray);letter-spacing:1px;
  padding-left:14px;border-left:2px solid var(--gold);
}

/* ---------- 案例三卡 ---------- */
.selec-cases{background:var(--white)}
.selec-case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.selec-card{
  display:block;border:1px solid var(--line);border-radius:14px;overflow:hidden;
  background:var(--mist);transition:all .35s ease;
}
.selec-card:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:var(--gold-2)}
.selec-card img{width:100%;height:180px;object-fit:cover}
.selec-card div{padding:20px 22px 22px}
.selec-card span{
  display:inline-block;font-size:11.5px;letter-spacing:2px;color:var(--gold-3);
  border:1px solid var(--gold);padding:2px 10px;border-radius:20px;margin-bottom:10px;
}
.selec-card h3{font-size:16.5px;line-height:1.6;margin-bottom:8px}
.selec-card p{font-size:13px;color:var(--gray);line-height:1.85}
.selec-cases-more{margin-top:36px;text-align:center;font-size:14px;color:var(--gray)}
.selec-cases-more a{color:var(--gold-3);font-weight:600;border-bottom:1px dashed var(--gold)}

/* ---------- CTA 金色调深色 ---------- */
.selec-cta{
  background:linear-gradient(150deg,#2B2721 0%,#221F1A 60%,#1C1E23 100%);
  padding:90px 0;position:relative;overflow:hidden;
}
.selec-cta::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(480px 280px at 15% 20%,rgba(217,190,133,.14),transparent 60%);
}
.selec-cta-inner{position:relative;max-width:840px}
.selec-cta h2{color:#fff;font-size:32px;margin-bottom:18px}
.selec-cta p{color:#C9C2B2;font-size:15px;line-height:2}
.selec-cta a{color:var(--gold-2);border-bottom:1px dashed var(--gold-2)}
.selec-cta-actions{display:flex;flex-wrap:wrap;gap:16px;margin:28px 0 14px}
.selec-cta .btn-line{color:#E9E3CD;border-color:rgba(217,190,133,.45)}
.selec-cta .btn-line:hover{border-color:var(--gold-2);color:#fff;background:rgba(217,190,133,.12)}
.selec-cta-note{font-size:13.5px;color:#9A968C}

/* ---------- 响应式 ---------- */
@media (max-width:992px){
  .selec-quotes{grid-template-columns:1fr}
  .selec-flow-track{grid-template-columns:repeat(2,1fr);gap:26px}
  .selec-flow-track::before{display:none}
  .selec-how-inner{grid-template-columns:1fr;gap:36px}
  .selec-case-grid{grid-template-columns:1fr;gap:18px}
}
@media (max-width:640px){
  .selec-flow-track{grid-template-columns:1fr}
  .selec-cta h2{font-size:24px}
}