/* ============================================================
   page-solution-nengyuan.css — 能源环保解决方案页（能量流风）
   命名空间：body.page-solution-nengyuan
   签名视觉：损耗痛点卡 / 发电-传输-并网能量流 / 模块矩阵 / 项目横滑
   ============================================================ */

/* ---------- Hero ---------- */
body.page-solution-nengyuan .energy-hero{padding-bottom:88px}
body.page-solution-nengyuan .hero-hotline{margin-top:14px;font-size:13.5px;color:var(--c-muted)}

/* ---------- 痛点"损耗"卡片 ---------- */
body.page-solution-nengyuan .loss-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
body.page-solution-nengyuan .loss-card{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--radius-md);
  padding:26px 22px 22px;box-shadow:var(--shadow-card);
  border-top:4px solid var(--c-purple-300);transition:transform .3s var(--ease);
}
body.page-solution-nengyuan .loss-card:hover{transform:translateY(-4px)}
body.page-solution-nengyuan .loss-tag{
  display:inline-block;font-size:11.5px;font-weight:800;letter-spacing:.12em;
  color:var(--c-purple-400);background:var(--c-bg-purple);
  padding:4px 12px;border-radius:999px;margin-bottom:14px;
}
body.page-solution-nengyuan .loss-card h3{font-size:18px;margin-bottom:8px}
body.page-solution-nengyuan .loss-card p{font-size:14px}

/* ---------- 能量流：发电-传输-并网 ---------- */
body.page-solution-nengyuan .flow-grid{
  display:flex;align-items:stretch;gap:0;margin-top:8px;
}
body.page-solution-nengyuan .flow-stage{
  flex:1;background:#fff;border:1px solid var(--c-line);border-radius:var(--radius-md);
  padding:30px 26px;box-shadow:var(--shadow-card);position:relative;
}
body.page-solution-nengyuan .flow-stage-hot{
  background:var(--grad-dark);color:#EDE3F5;border:0;
}
body.page-solution-nengyuan .flow-stage-tag{
  display:inline-block;font-size:11.5px;font-weight:800;letter-spacing:.14em;
  color:#fff;background:var(--grad-main);padding:4px 12px;border-radius:4px;margin-bottom:14px;
}
body.page-solution-nengyuan .flow-stage h3{font-size:20px;margin-bottom:10px}
body.page-solution-nengyuan .flow-stage-hot h3{color:#fff}
body.page-solution-nengyuan .flow-stage p{font-size:14.5px}
/* 能量流箭头：渐变条形 + 端点箭头，带流动动画 */
body.page-solution-nengyuan .flow-arrow{
  flex:none;width:44px;align-self:center;position:relative;
}
body.page-solution-nengyuan .flow-arrow::before{
  content:"";position:absolute;left:0;right:14px;top:50%;height:3px;
  background:linear-gradient(90deg,var(--c-pink-300),var(--c-purple-300));
  animation:flowPulse 1.8s ease-in-out infinite;
}
body.page-solution-nengyuan .flow-arrow::after{
  content:"";position:absolute;right:0;top:50%;width:0;height:0;
  border-left:10px solid var(--c-purple-300);
  border-top:7px solid transparent;border-bottom:7px solid transparent;
  transform:translateY(-50%);
}
@keyframes flowPulse{
  0%,100%{opacity:.4}
  50%{opacity:1}
}
body.page-solution-nengyuan .flow-figure{margin:40px auto 0;max-width:780px}
body.page-solution-nengyuan .flow-figure img{border-radius:var(--radius-md);box-shadow:var(--shadow-card)}
body.page-solution-nengyuan .flow-figure figcaption{margin-top:10px;font-size:13px;color:var(--c-muted)}

/* ---------- 模块矩阵 ---------- */
body.page-solution-nengyuan .matrix-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
body.page-solution-nengyuan .matrix-cell{
  background:var(--c-bg-soft);border:1px solid var(--c-line);border-radius:var(--radius-md);
  padding:26px 24px;border-left:4px solid var(--c-pink-300);
  transition:transform .3s var(--ease);
}
body.page-solution-nengyuan .matrix-cell:nth-child(even){border-left-color:var(--c-purple-300)}
body.page-solution-nengyuan .matrix-cell:hover{transform:translateY(-3px)}
body.page-solution-nengyuan .matrix-cell h3{font-size:17px;margin-bottom:8px}
body.page-solution-nengyuan .matrix-cell p{font-size:14px}

/* ---------- 项目横滑卡片 ---------- */
body.page-solution-nengyuan .proj-card{
  width:272px;background:#fff;border:1px solid var(--c-line);
  border-radius:var(--radius-md);padding:24px 22px;box-shadow:var(--shadow-card);
}
body.page-solution-nengyuan .proj-no{font-size:12px;font-weight:800;letter-spacing:.16em;color:var(--c-pink-400)}
body.page-solution-nengyuan .proj-card h3{font-size:17px;margin:10px 0 8px}
body.page-solution-nengyuan .proj-card p{font-size:14px}

/* ---------- 实施路径 ---------- */
body.page-solution-nengyuan .power-track{
  list-style:none;display:grid;grid-template-columns:repeat(4,1fr);gap:22px;
}
body.page-solution-nengyuan .power-track li{
  position:relative;background:#fff;border:1px solid var(--c-line);
  border-radius:var(--radius-md);padding:26px 22px;box-shadow:var(--shadow-card);
}
body.page-solution-nengyuan .power-track li:not(:last-child)::after{
  content:"";position:absolute;right:-20px;top:50%;width:20px;border-top:2px dashed var(--c-purple-300);
}
body.page-solution-nengyuan .power-day{
  display:inline-block;font-size:12.5px;font-weight:800;color:#fff;
  background:var(--grad-main);padding:4px 14px;border-radius:999px;margin-bottom:14px;
}
body.page-solution-nengyuan .power-track h3{font-size:18px;margin-bottom:8px}
body.page-solution-nengyuan .power-track p{font-size:14px}

/* ---------- 价值收益数据条 ---------- */
body.page-solution-nengyuan .data-strip{
  display:grid;grid-template-columns:repeat(4,1fr);gap:0;
  background:var(--grad-dark);border-radius:var(--radius-lg);overflow:hidden;
}
body.page-solution-nengyuan .data-cell{
  padding:34px 20px;text-align:center;border-right:1px dashed rgba(255,255,255,.14);
}
body.page-solution-nengyuan .data-cell:last-child{border-right:0}
body.page-solution-nengyuan .data-cell strong{
  display:block;font-size:clamp(26px,3vw,38px);font-weight:800;
  background:var(--grad-text);-webkit-background-clip:text;background-clip:text;color:transparent;
}
body.page-solution-nengyuan .data-cell span{font-size:13.5px;color:#C9BBD3}

/* ---------- 相关方案延伸 ---------- */
body.page-solution-nengyuan .rel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
body.page-solution-nengyuan .rel-item{
  display:flex;flex-direction:column;gap:8px;background:#fff;
  border:1px solid var(--c-line);border-radius:var(--radius-md);padding:22px 24px;
  font-weight:700;color:var(--c-ink);font-size:16px;
  transition:transform .3s var(--ease),box-shadow .3s var(--ease);
}
body.page-solution-nengyuan .rel-item span{font-size:13px;font-weight:500;color:var(--c-purple-400)}
body.page-solution-nengyuan .rel-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-card)}

/* ---------- FAQ ---------- */
body.page-solution-nengyuan .faq-list{display:grid;grid-template-columns:1fr 1fr;gap:18px}
body.page-solution-nengyuan .faq-item{
  background:var(--c-bg-soft);border:1px solid var(--c-line);
  border-radius:var(--radius-md);padding:24px 26px;
}
body.page-solution-nengyuan .faq-item h3{font-size:16.5px;margin-bottom:10px;color:var(--c-ink)}
body.page-solution-nengyuan .faq-item p{font-size:14.5px}

/* ---------- 底部 CTA ---------- */
body.page-solution-nengyuan .cta-box{
  background:var(--grad-soft);border:1px solid var(--c-line);border-radius:var(--radius-lg);
  padding:56px 32px;text-align:center;
}
body.page-solution-nengyuan .cta-box p{max-width:640px;margin:14px auto 0}
body.page-solution-nengyuan .cta-meta{justify-content:center}
body.page-solution-nengyuan .cta-note{margin-top:16px;font-size:13px;color:var(--c-muted)}

/* ---------- 响应式 ---------- */
@media (max-width:1200px){
  body.page-solution-nengyuan .loss-grid{grid-template-columns:repeat(2,1fr)}
  body.page-solution-nengyuan .flow-grid{flex-direction:column;gap:16px}
  body.page-solution-nengyuan .flow-arrow{width:0;height:30px;align-self:center}
  body.page-solution-nengyuan .flow-arrow::before{left:50%;right:auto;top:0;bottom:0;width:3px;height:auto;transform:translateX(-50%);background:linear-gradient(180deg,var(--c-pink-300),var(--c-purple-300))}
  body.page-solution-nengyuan .flow-arrow::after{right:auto;left:50%;top:auto;bottom:-2px;transform:translateX(-50%) rotate(90deg)}
}
@media (max-width:768px){
  body.page-solution-nengyuan .matrix-grid{grid-template-columns:1fr 1fr}
  body.page-solution-nengyuan .power-track{grid-template-columns:1fr 1fr;gap:16px}
  body.page-solution-nengyuan .power-track li:not(:last-child)::after{display:none}
  body.page-solution-nengyuan .data-strip{grid-template-columns:repeat(2,1fr)}
  body.page-solution-nengyuan .data-cell:nth-child(2n){border-right:0}
  body.page-solution-nengyuan .data-cell:nth-child(-n+2){border-bottom:1px dashed rgba(255,255,255,.14)}
  body.page-solution-nengyuan .rel-grid{grid-template-columns:1fr}
  body.page-solution-nengyuan .faq-list{grid-template-columns:1fr}
}
@media (max-width:360px){
  body.page-solution-nengyuan .loss-grid{grid-template-columns:1fr}
  body.page-solution-nengyuan .matrix-grid{grid-template-columns:1fr}
  body.page-solution-nengyuan .power-track{grid-template-columns:1fr}
  body.page-solution-nengyuan .data-strip{grid-template-columns:1fr 1fr}
  body.page-solution-nengyuan .proj-card{width:236px}
}