/* ============================================================
   case-education.css —— 教育行业案例（巨型数字侧栏双栏）
   布局：Hero / 左巨型数字侧栏+右文 / 解决方案两行图文 /
   数据 / 评价 / 相关案例 / CTA
   ============================================================ */

/* ---------- 1. Hero ---------- */
.ed-hero{position:relative;min-height:88vh;display:flex;align-items:center;overflow:hidden;background:var(--ink)}
.edh-bg{background-position:center 38%}
.edh-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%);
}
.edh-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}
.edh-eyebrow{color:var(--coffee-bright);font-size:13px;font-weight:800;letter-spacing:.28em;margin-bottom:16px}
.edh-title{color:#fff;font-size:clamp(36px,5.6vw,64px);font-weight:900;line-height:1.14;letter-spacing:-.02em;margin-bottom:20px}
.edh-gold{color:var(--coffee)}
.edh-sub{color:#D8CFBF;font-size:16px;line-height:1.9;max-width:600px;margin-bottom:34px}
.edh-cta{display:flex;gap:16px;flex-wrap:wrap}
@media (max-width:640px){.edh-cta .btn{width:100%}}

/* ---------- 2. 巨型数字侧栏双栏 ---------- */
.ed-layout{background:var(--coffee-bg)}
.ed-wrap{display:grid;grid-template-columns:340px 1fr;gap:60px;align-items:start}
.ed-sidebar{position:sticky;top:120px}
.ed-bignum{
  background:var(--ink);border-radius:24px;padding:44px 36px;color:#fff;
  box-shadow:var(--shadow-lg);
}
.ed-bignum b{
  display:block;font-size:120px;font-weight:900;line-height:.9;
  background:var(--grad-coffee);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
  margin-bottom:18px;
}
.ed-bignum p{color:#CFC7B8;font-size:14.5px;line-height:1.9}
.ed-main{display:flex;flex-direction:column;gap:48px}
.ed-block p{font-size:15.5px;color:var(--text);line-height:2;margin-top:10px}
.ed-probs{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:20px}
.ed-probs>div{
  background:#fff;border-radius:16px;padding:22px 20px;border:1px solid var(--line);
}
.ed-probs b{display:block;font-size:13px;font-weight:900;color:var(--coffee-deep);margin-bottom:8px}
.ed-probs p{font-size:13.5px;color:var(--text-2);line-height:1.7;margin:0}
@media (max-width:1024px){
  .ed-wrap{grid-template-columns:1fr;gap:36px}
  .ed-sidebar{position:static}
  .ed-bignum b{font-size:80px}
  .ed-probs{grid-template-columns:1fr}
}

/* ---------- 3. 解决方案两行 ---------- */
.ed-sol{background:#fff}
.ed-sol-row{
  display:grid;grid-template-columns:1fr 1fr;gap:50px;align-items:center;
  margin-bottom:56px;
}
.ed-sol-row:last-child{margin-bottom:0}
.ed-sol-media img{border-radius:22px;box-shadow:var(--shadow-md)}
.ed-sol-text h3{font-size:24px;margin-bottom:14px}
.ed-sol-text p{font-size:15.5px;color:var(--text);line-height:2}
@media (max-width:1024px){
  .ed-sol-row{grid-template-columns:1fr;gap:24px;margin-bottom:44px}
  .ed-sol-rev .ed-sol-media{order:-1}
}

/* ---------- 4. 数据 ---------- */
.ed-nums{background:var(--ink);padding:90px 0}
.ed-nums-inner{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;text-align:center}
.en 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}
.en b::after{content:"";display:block;width:36px;height:2px;background:var(--grad-coffee);margin:14px auto 0;border-radius:2px}
.en span{color:var(--coffee-bright);font-size:13.5px;letter-spacing:.05em}
@media (max-width:768px){.ed-nums-inner{grid-template-columns:1fr 1fr;gap:36px}}

/* ---------- 5. 评价 ---------- */
.ed-quote{background:var(--coffee-bg)}
.ed-quote-inner{max-width:780px;margin:0 auto}
.ed-quote blockquote{
  background:#fff;border-radius:24px;padding:48px 46px;box-shadow:var(--shadow-sm);
  border-top:5px solid var(--grad-coffee);
}
.ed-quote p{font-size:17px;line-height:2;color:var(--text);margin-bottom:22px}
.ed-quote footer b{display:block;font-size:15px;margin-bottom:5px}
.ed-quote footer span{font-size:13px;color:var(--coffee-deep);font-weight:700}

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