/* ============================================================
   case-mall.css —— 电商商城案例（里程碑时间轴式）
   布局：Hero / 背景左文右痛点卡 / 中轴时间轴（5 里程碑）/
   暗场数据带 / 评价 / 相关案例 / CTA
   ============================================================ */

/* ---------- 1. Hero ---------- */
.m-hero{position:relative;min-height:88vh;display:flex;align-items:center;overflow:hidden;background:var(--ink)}
.mh-bg{background-position:center 38%}
.mh-veil{
  position:absolute;inset:0;z-index:1;
  background:
    linear-gradient(100deg,rgba(20,20,20,.9) 0%,rgba(20,20,20,.6) 50%,rgba(20,20,20,.28) 100%),
    linear-gradient(0deg,rgba(20,20,20,.5),transparent 42%);
}
.mh-inner{position:relative;z-index:2;max-width:800px;padding-top:120px;padding-bottom:80px}
.crumb{display:inline-flex;align-items:center;gap:10px;margin-bottom:24px;font-size:14px;color:#D8CFBF}
.crumb a{color:#fff;font-weight:600}
.crumb a:hover{color:var(--coffee-bright)}
.crumb span{color:var(--coffee)}
.crumb em{font-style:normal;color:var(--coffee-bright);font-weight:700}
.mh-eyebrow{color:var(--coffee-bright);font-size:13px;font-weight:800;letter-spacing:.28em;margin-bottom:16px}
.mh-title{color:#fff;font-size:clamp(36px,5.6vw,64px);font-weight:900;line-height:1.14;letter-spacing:-.02em;margin-bottom:20px}
.mh-gold{color:var(--coffee)}
.mh-sub{color:#D8CFBF;font-size:16px;line-height:1.9;max-width:600px;margin-bottom:34px}
.mh-cta{display:flex;gap:16px;flex-wrap:wrap}
@media (max-width:640px){.mh-cta .btn{width:100%}}

/* ---------- 2. 项目背景 ---------- */
.mall-bg{background:#fff}
.mall-bg-grid{display:grid;grid-template-columns:1.2fr 1fr;gap:56px;align-items:start}
.mall-bg-text{font-size:16px;color:var(--text);line-height:2.05}
.mall-bg-points{display:flex;flex-direction:column;gap:14px}
.mall-bg-points>div{
  display:flex;gap:18px;align-items:baseline;
  background:var(--coffee-bg);border-radius:14px;padding:18px 22px;
}
.mall-bg-points b{
  flex-shrink:0;font-size:13px;font-weight:900;color:#fff;letter-spacing:.08em;
  background:var(--grad-ink);padding:6px 12px;border-radius:8px;
}
.mall-bg-points p{font-size:15px;color:var(--text);font-weight:600}
@media (max-width:1024px){.mall-bg-grid{grid-template-columns:1fr;gap:32px}}

/* ---------- 3. 中轴时间轴 ---------- */
.mall-tl{background:var(--coffee-bg)}
.tl-list{position:relative;max-width:920px;margin:0 auto;padding:20px 0}
.tl-list::before{
  content:"";position:absolute;left:50%;top:0;bottom:0;width:2px;
  background:linear-gradient(180deg,var(--coffee),var(--coffee-bg-2));
  transform:translateX(-50%);
}
.tl-item{
  position:relative;display:grid;grid-template-columns:1fr 1fr;gap:44px;
  align-items:center;padding:34px 0;
}
.tl-dot{
  position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);
  width:74px;height:74px;border-radius:50%;z-index:2;
  background:var(--ink);color:var(--coffee-bright);
  display:flex;align-items:center;justify-content:center;
  font-size:15px;font-weight:900;letter-spacing:.04em;
  border:6px solid var(--coffee-bg);box-shadow:0 8px 24px rgba(20,20,20,.25);
}
.tl-item:nth-child(even) .tl-body{order:2} /* 偶数项文字右、图左，交错 */
.tl-body{
  background:#fff;border-radius:18px;padding:30px 30px 26px;
  border:1px solid var(--line);box-shadow:var(--shadow-sm);
}
.tl-body time{
  display:inline-block;font-size:12px;font-weight:900;letter-spacing:.14em;
  color:var(--coffee-deep);margin-bottom:10px;
}
.tl-body h3{font-size:20px;margin-bottom:10px}
.tl-body p{font-size:14px;color:var(--text-2);line-height:1.9}
.tl-img img{border-radius:18px;box-shadow:var(--shadow-md);width:100%}
@media (max-width:860px){
  .tl-list::before{left:37px;transform:none}
  .tl-item{grid-template-columns:1fr;padding-left:90px;gap:18px}
  .tl-dot{left:37px;transform:translateY(-50%)}
  .tl-item:nth-child(even) .tl-body{order:0}
  .tl-img{order:2}
}

/* ---------- 4. 暗场数据带 ---------- */
.mall-nums{position:relative;overflow:hidden;padding:100px 0;background:var(--ink)}
.mall-nums-bg{background-position:center 60%}
.mall-nums-veil{position:absolute;inset:0;background:rgba(20,20,20,.86);z-index:1}
.mall-nums-inner{position:relative;z-index:2;display:grid;grid-template-columns:repeat(4,1fr);gap:24px;text-align:center}
.mn-item b{display:block;font-size:clamp(38px,4.6vw,58px);font-weight:900;color:#fff;line-height:1.1;margin-bottom:10px;font-variant-numeric:tabular-nums}
.mn-item b::after{content:"";display:block;width:36px;height:2px;background:var(--grad-coffee);margin:14px auto 0;border-radius:2px}
.mn-item span{color:var(--coffee-bright);font-size:13.5px;letter-spacing:.06em;line-height:1.6}
@media (max-width:768px){.mall-nums-inner{grid-template-columns:1fr 1fr;gap:38px}}

/* ---------- 5. 评价 ---------- */
.mall-quote{background:#fff}
.mall-quote-inner{max-width:780px;margin:0 auto;text-align:center}
.mall-quote blockquote{
  position:relative;background:var(--coffee-bg);border-radius:24px;
  padding:56px 44px 40px;
}
.mall-quote blockquote::before{
  content:"";position:absolute;top:-14px;left:50%;transform:translateX(-50%);
  width:28px;height:28px;background:var(--grad-coffee);border-radius:50%;
}
.mall-quote p{font-size:17px;line-height:2;color:var(--text);margin-bottom:24px}
.mall-quote footer b{display:block;font-size:15px;margin-bottom:5px}
.mall-quote footer span{font-size:13px;color:var(--coffee-deep);font-weight:700}

/* ---------- 6. 相关案例 ---------- */
.mall-rel{background:var(--coffee-bg)}
.mall-rel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.mr-card{display:block;background:#fff;border-radius:18px;overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-sm);transition:all .4s}
.mr-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-lg)}
.mr-card img{width:100%;height:180px;object-fit:cover;transition:transform .6s}
.mr-card:hover img{transform:scale(1.07)}
.mr-card h3{font-size:16px;padding:18px 20px 6px}
.mr-card p{font-size:13px;color:var(--coffee-deep);font-weight:700;padding:0 20px 20px}
.mr-card:hover h3{color:var(--coffee-deep)}
@media (max-width:1024px){.mall-rel-grid{grid-template-columns:1fr}}