/* ============================================================
   service-promotion.css — 全网营销推广详情页
   布局：左对齐 Hero + 渠道标签云 / 左文右图 / 深色 2x2 渠道矩阵 /
   浅色数据条 / 双案例图卡 / FAQ / CTA
   ============================================================ */

/* ---------- 1. Hero ---------- */
.pr-hero{
  min-height:92vh;position:relative;overflow:hidden;
  background:var(--ink);color:#fff;
  display:flex;align-items:center;padding:150px 0 90px;
}
.pr-hero-bg{z-index:0}
.pr-hero-veil{
  position:absolute;inset:0;z-index:1;
  background:linear-gradient(100deg,rgba(16,15,13,.92) 0%,rgba(16,15,13,.66) 55%,rgba(16,15,13,.4) 100%);
}
.pr-hero-inner{position:relative;z-index:2;max-width:720px}
.pr-crumb{font-size:13px;color:#CFC7B8;margin-bottom:24px;font-weight:600}
.pr-crumb a{color:#CFC7B8;transition:color .3s}
.pr-crumb a:hover{color:var(--coffee-bright)}
.pr-crumb em{font-style:normal;color:var(--coffee-bright)}
.pr-hero-title{font-size:clamp(34px,5.2vw,62px);font-weight:900;color:#fff;line-height:1.22;margin-bottom:22px}
.pr-ht-line{display:block}
.pr-gold{
  background:linear-gradient(120deg,#E8CD9D,#C9A87C);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.pr-hero-sub{font-size:16px;color:#D8D0C2;line-height:1.9;margin-bottom:34px;max-width:560px}
.pr-hero-cta{display:flex;gap:16px;flex-wrap:wrap;margin-bottom:38px}

/* 渠道标签云 */
.pr-cloud{display:flex;flex-wrap:wrap;gap:10px}
.pr-cloud span{
  padding:8px 18px;border-radius:100px;font-size:13px;font-weight:700;
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18);
  color:#EDE6DA;backdrop-filter:blur(6px);transition:all .3s;
}
.pr-cloud span:hover{background:var(--grad-coffee);border-color:transparent;color:#fff}

/* ---------- 2. 左文右图 ---------- */
.pr-what{background:#fff}
.pr-what-inner{display:grid;grid-template-columns:1.15fr 1fr;gap:64px;align-items:center}
.pr-what-text p{color:var(--text-2);line-height:1.9;margin-bottom:14px}
.pr-what-points{
  margin-top:26px;padding:24px 28px;border-radius:var(--radius-md);
  background:var(--coffee-bg);border-left:4px solid var(--coffee);
}
.pr-what-points p{margin:0 0 10px;color:var(--text);font-size:15px}
.pr-what-points p:last-child{margin-bottom:0}
.pr-what-points b{color:var(--coffee-deep);font-weight:800}
.pr-what-media img{
  border-radius:var(--radius-lg);aspect-ratio:16/10;object-fit:cover;
  box-shadow:var(--shadow-lg);
}

/* ---------- 3. 深色渠道矩阵 2x2 ---------- */
.pr-dark{background:var(--ink);color:#E9E2D6}
.pr-dark .sec-eyebrow{color:var(--coffee-bright)}
.pr-dark .sec-title{color:#fff}
.pr-ch-grid{
  display:grid;grid-template-columns:1fr 1fr;gap:24px;max-width:960px;margin:0 auto;
}
.pr-ch{
  position:relative;background:rgba(255,255,255,.05);
  border:1px solid rgba(255,255,255,.12);border-radius:var(--radius-lg);
  padding:36px 32px;transition:all .4s;overflow:hidden;
}
.pr-ch:hover{background:rgba(201,168,124,.12);border-color:rgba(201,168,124,.45);transform:translateY(-6px)}
.prc-num{
  position:absolute;right:24px;top:16px;
  font-size:72px;font-weight:900;line-height:1;
  color:rgba(255,255,255,.08);
}
.pr-ch h3{color:#fff;font-size:21px;margin-bottom:12px}
.pr-ch p{color:#B7AE9E;font-size:14.5px;line-height:1.85;margin-bottom:18px;max-width:340px}
.prc-tag{
  display:inline-block;font-size:12.5px;font-weight:800;
  padding:6px 14px;border-radius:100px;
  background:rgba(201,168,124,.18);color:var(--coffee-bright);
}

/* ---------- 4. 数据条（浅色） ---------- */
.pr-nums{background:var(--coffee-bg);padding:80px 0}
.pr-nums-inner{
  display:grid;grid-template-columns:repeat(4,1fr);gap:24px;text-align:center;
}
.pr-num b{
  display:block;font-size:clamp(36px,4.4vw,52px);font-weight:900;
  color:var(--coffee-deep);line-height:1.1;font-variant-numeric:tabular-nums;
}
.pr-num span{font-size:14px;color:var(--text-2);margin-top:10px;display:block}

/* ---------- 5. 案例 ---------- */
.pr-case-grid{display:grid;grid-template-columns:1fr 1fr;gap:32px}
.pr-case-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  overflow:hidden;box-shadow:var(--shadow-sm);transition:all .4s;
}
.pr-case-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-lg)}
.pr-case-card img{aspect-ratio:16/9;object-fit:cover;width:100%}
.pr-case-card h3{font-size:18px;margin:18px 24px 10px}
.pr-case-card h3 a:hover{color:var(--coffee-deep)}
.pr-case-card p{font-size:14px;color:var(--text-2);margin:0 24px 22px;line-height:1.8}
.prc2-tag{
  display:inline-block;margin:18px 0 0 24px;padding:5px 14px;border-radius:100px;
  background:var(--coffee-bg);color:var(--coffee-deep);font-size:12px;font-weight:700;
}

.pr-relate{
  margin-top:44px;padding:22px 28px;border-radius:var(--radius-md);
  background:var(--coffee-bg);display:flex;align-items:center;gap:10px;flex-wrap:wrap;
}
.pr-relate span{font-weight:800;color:var(--ink);flex-shrink:0}
.pr-relate a{
  padding:7px 16px;border-radius:100px;background:#fff;
  color:var(--coffee-deep);font-weight:700;transition:all .3s;font-size:14px;
}
.pr-relate a:hover{background:var(--grad-coffee);color:#fff}

/* ---------- 6. FAQ ---------- */
.pr-faq{background:var(--coffee-bg)}
.pr-acc{max-width:820px;margin:0 auto;display:flex;flex-direction:column;gap:14px}
.acc-item{
  background:#fff;border-radius:var(--radius-md);overflow:hidden;transition:box-shadow .3s;
}
.acc-item.open{box-shadow:var(--shadow-md)}
.acc-head{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:22px 28px;text-align:left;font-size:17px;font-weight:800;color:var(--ink);
}
.acc-head svg{width:18px;height:18px;color:var(--coffee-deep);flex-shrink:0;transition:transform .35s}
.acc-item.open .acc-head svg{transform:rotate(180deg)}
.acc-panel{max-height:0;overflow:hidden;transition:max-height .4s ease}
.acc-panel p{padding:0 28px 24px;color:var(--text-2);font-size:15px;line-height:1.9}
.acc-panel a{color:var(--coffee-deep);font-weight:700;text-decoration:underline}

/* ---------- 7. CTA ---------- */
.pr-cta{position:relative;overflow:hidden;background:var(--ink);text-align:center}
.pr-cta-bg{z-index:0}
.pr-cta-veil{position:absolute;inset:0;z-index:1;background:linear-gradient(180deg,rgba(16,15,13,.9),rgba(16,15,13,.72))}
.pr-cta-inner{position:relative;z-index:2}
.pr-cta-title{font-size:clamp(26px,3.8vw,42px);color:#fff;font-weight:900;line-height:1.45;margin-bottom:18px}
.pr-cta-sub{color:#CFC7B8;font-size:16px;margin-bottom:36px}
.pr-cta-row{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .pr-what-inner{grid-template-columns:1fr;gap:40px}
  .pr-ch-grid{grid-template-columns:1fr}
  .pr-nums-inner{grid-template-columns:repeat(2,1fr);row-gap:36px}
  .pr-case-grid{grid-template-columns:1fr}
}