/* ============================================================
   case-chemical.css · 化工企业官网案例（洛阳 · 精细化工）
   布局特征：深灰镜像背景 / 菱形痛点列表 / 双栏方案 / 三列图文卡 / 深色数据宫格
   ============================================================ */

/* ---------- Hero 标签 ---------- */
.cch-hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:18px}
.cch-hero-tags span{
  padding:6px 16px;font-size:13px;letter-spacing:2px;color:var(--gold-2);
  border:1px solid rgba(217,190,133,.45);background:rgba(217,190,133,.08);
}

/* ---------- 项目背景：深灰镜像 ---------- */
.cch-bg{
  background:linear-gradient(150deg,#23262C,#1A1D22);color:#E9E6DE;padding:96px 0;
}
.cch-bg-inner{
  display:grid;grid-template-columns:1.1fr .9fr;gap:60px;align-items:center;
}
.cch-bg-copy .sec-kicker{color:var(--gold-2)}
.cch-bg-copy h2{font-size:32px;color:#fff;margin:12px 0 20px;letter-spacing:3px}
.cch-bg-copy p{color:#C9C6BC;font-size:15px;line-height:1.95;margin-bottom:14px}
.cch-bg-copy p b{color:#fff}
.cch-bg-media img{border-radius:6px;box-shadow:0 24px 60px rgba(0,0,0,.4)}

/* ---------- 痛点：菱形标记 ---------- */
.cch-pain-list{
  max-width:900px;margin:0 auto;display:grid;grid-template-columns:1fr 1fr;gap:20px;
}
.cch-pain-list li{
  background:var(--white);border:1px solid var(--line);border-radius:6px;
  padding:28px 26px 28px 44px;position:relative;box-shadow:var(--shadow-soft);
  transition:transform .35s ease,border-color .35s ease;
}
.cch-pain-list li::before{
  content:"";position:absolute;left:18px;top:34px;width:10px;height:10px;
  background:linear-gradient(135deg,var(--gold-2),var(--gold-3));transform:rotate(45deg);
}
.cch-pain-list li:hover{transform:translateY(-4px);border-color:var(--gold-2)}
.cch-pain-list h3{font-size:16.5px;margin-bottom:8px}
.cch-pain-list p{font-size:13.5px;color:var(--gray)}

/* ---------- 方案双栏 ---------- */
.cch-plan-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px}
.cch-plan-col h3{
  font-size:19px;letter-spacing:2px;margin-bottom:16px;padding-bottom:12px;
  border-bottom:1px solid var(--line);
}
.cch-plan-col p{font-size:15px;color:var(--ink-2);margin-bottom:16px;line-height:1.95}
.cch-plan-col .btn{margin-top:8px}

/* ---------- 亮点三列卡 ---------- */
.cch-hi-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.cch-hi-card{
  background:var(--white);border:1px solid var(--line);border-radius:10px;overflow:hidden;
  box-shadow:var(--shadow-soft);transition:transform .35s ease,border-color .35s ease;
}
.cch-hi-card:hover{transform:translateY(-6px);border-color:var(--gold-2)}
.cch-hi-card img{aspect-ratio:16/9;object-fit:cover;width:100%}
.cch-hi-body{padding:22px 22px 26px}
.cch-hi-tag{
  display:inline-block;font-size:12px;letter-spacing:3px;color:var(--gold-3);
  border:1px solid var(--gold-2);padding:4px 12px;border-radius:20px;margin-bottom:12px;
}
.cch-hi-body h3{font-size:17px;margin-bottom:10px}
.cch-hi-body p{font-size:13.5px;color:var(--gray);line-height:1.85}

/* ---------- 数据深色宫格 ---------- */
.cch-data-grid{
  display:grid;grid-template-columns:repeat(4,1fr);gap:22px;
}
.cch-data-item{
  background:rgba(255,255,255,.04);border:1px solid rgba(217,190,133,.25);
  border-radius:10px;padding:32px 20px;text-align:center;
}
.cch-data-item b{
  font-family:var(--font-serif);font-size:42px;color:var(--gold-2);display:block;line-height:1;
}
.cch-data-item b em{font-style:normal;font-size:15px;color:#C9C6BC}
.cch-data-item p{margin-top:10px;font-size:13px;color:#9A9EA6}
.cch-data-note{
  margin-top:30px;text-align:center;color:#9A9EA6;font-size:14px;
}
.cch-data-note a{color:var(--gold-2);border-bottom:1px dashed rgba(217,190,133,.5)}

/* ---------- 评价 ---------- */
.cch-quote-inner{max-width:820px;margin:0 auto;text-align:center}
.cch-quote blockquote p{
  font-family:var(--font-serif);font-size:19px;line-height:2.15;color:var(--ink);
}
.cch-quote cite{
  display:block;margin-top:18px;font-style:normal;font-size:14px;color:var(--gray);
}

/* ---------- 更多案例 ---------- */
.cch-more-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.cch-more-card{
  background:var(--white);border:1px solid var(--line);border-radius:8px;overflow:hidden;
  box-shadow:var(--shadow-soft);transition:transform .35s ease,border-color .35s ease;
}
.cch-more-card:hover{transform:translateY(-6px);border-color:var(--gold-2)}
.cch-more-card img{aspect-ratio:16/9;object-fit:cover;width:100%}
.cch-more-card h3{font-size:16px;padding:16px 18px 4px}
.cch-more-card p{font-size:13px;color:var(--gray);padding:0 18px 18px}

/* ---------- CTA（暖白） ---------- */
.cch-cta{
  padding:80px 0;text-align:center;
  background:linear-gradient(160deg,#F7F5F0,#EFEBE1);
}
.cch-cta-inner h2{font-size:28px;margin-bottom:14px;letter-spacing:2px}
.cch-cta-inner p{color:var(--gray);margin-bottom:26px}
.cch-cta-actions{display:flex;justify-content:center;gap:16px;flex-wrap:wrap}
.cch-cta-note{margin-top:20px;font-size:13.5px;color:var(--gray)}

/* ---------- 响应式 ---------- */
@media (max-width:992px){
  .cch-bg-inner,.cch-plan-grid{grid-template-columns:1fr;gap:32px}
  .cch-pain-list{grid-template-columns:1fr}
  .cch-hi-grid,.cch-data-grid,.cch-more-grid{grid-template-columns:1fr;max-width:520px;margin-left:auto;margin-right:auto}
  .cch-data-grid{max-width:none;grid-template-columns:1fr 1fr}
}
@media (max-width:640px){
  .cch-data-grid{grid-template-columns:1fr}
  .cch-cta-inner h2{font-size:22px}
}