/* ============================================================
   SEO学院 · anli-yiliao.css（医疗健康案例）
   Hero 变体：H2 居中大标题 —— 标题居中、大图压底
   模块顺序：背景 → 数据 → 亮点 → 服务清单 → 相关案例 → 评价 → CTA
   ============================================================ */

/* ---------- 1. Hero：居中大标题 ---------- */
.yl-hero{position:relative;overflow:hidden;background:linear-gradient(180deg,#EAF2F8 0%,#F3FAFD 100%);padding:48px 0 70px;text-align:center}
.yl-x{top:34%}
.yl-v{left:50%}
.yl-blob{width:130px;height:130px;background:var(--blue);left:6%;top:40%;opacity:.2;border-radius:34px}
.yl-bread{justify-content:center;margin-bottom:16px}
.yl-hero h1{font-size:clamp(30px,4vw,48px);line-height:1.28;margin:16px 0 18px;position:relative;z-index:2}
.yl-hero h1 em{font-style:normal;color:var(--blue-deep)}
.yl-sub{color:var(--muted);max-width:680px;margin:0 auto 30px;position:relative;z-index:2}
.yl-hero-media{position:relative;z-index:2;max-width:900px;margin:0 auto}
.yl-hero-media .photo{width:100%;aspect-ratio:16/9;border:5px solid #fff}

/* ---------- 2. 项目背景 ---------- */
.yl-brief{background:var(--white)}
.yl-brief-in{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.yl-brief-text h2{margin-bottom:16px}
.yl-brief-text p{color:var(--muted);margin-bottom:14px}
.yl-brief-cards{display:flex;flex-direction:column;gap:18px}
.yl-need{background:var(--bg);border:2px solid var(--line);border-radius:var(--r-lg);padding:24px 26px;position:relative}
.yl-need-y{background:var(--cream);border-color:var(--yellow-deep)}
.yl-need-no{position:absolute;top:6px;right:16px;font-size:48px;font-weight:900;color:rgba(86,179,220,.15)}
.yl-need-y .yl-need-no{color:rgba(245,200,75,.32)}
.yl-need h3{font-size:18px;margin-bottom:10px}
.yl-need li{position:relative;padding:6px 0 6px 24px;font-size:14.5px}
.yl-need li::before{content:"";position:absolute;left:2px;top:14px;width:11px;height:11px;border-radius:50%;background:var(--blue-deep)}
.yl-need-y li::before{background:var(--yellow-deep)}

/* ---------- 3. 数据指标 ---------- */
.yl-data{background:var(--cream);position:relative}
.yl-data-v{left:12%;right:auto}
.yl-data-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.yl-data-card{
  background:#fff;border:2px solid var(--line);border-radius:var(--r-lg);
  text-align:center;padding:30px 14px;
}
.yl-data-card b{display:block;font-size:34px;font-weight:900;color:var(--blue-ink);margin-bottom:6px}
.yl-data-card:nth-child(2) b{color:var(--green-deep)}
.yl-data-card:nth-child(3) b{color:var(--yellow-deep)}
.yl-data-card:nth-child(4) b{color:var(--blue-deep)}
.yl-data-card span{font-size:13.5px;color:var(--muted);font-weight:600}
.yl-data-note{text-align:center;margin-top:22px;font-size:13.5px;color:var(--muted)}

/* ---------- 4. 设计亮点 ---------- */
.yl-points{background:var(--white);position:relative;overflow:hidden}
.yl-points-x{top:45%}
.yl-point{display:grid;grid-template-columns:1fr 1fr;gap:54px;align-items:center;position:relative;z-index:2}
.yl-point + .yl-point{margin-top:60px}
.yl-point-media img{width:100%;aspect-ratio:16/10}
.yl-point-no{
  display:inline-block;background:var(--blue-ink);color:#fff;
  font-size:13px;font-weight:800;padding:6px 15px;border-radius:999px;margin-bottom:14px;
}
.yl-point-rev .yl-point-no{background:var(--green-deep)}
.yl-point-text h3{font-size:22px;margin-bottom:12px}
.yl-point-text p{color:var(--muted)}

/* ---------- 5. 服务清单 ---------- */
.yl-svc{background:var(--bg)}
.yl-svc-in{display:grid;grid-template-columns:1.1fr 1fr;gap:56px;align-items:center}
.yl-svc-text h2{margin-bottom:14px}
.yl-svc-text p{color:var(--muted);margin-bottom:24px}
.yl-svc-list{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.yl-svc-list a{
  background:#fff;border:2px solid var(--line);border-radius:var(--r-md);
  padding:14px 16px;font-weight:800;font-size:14px;display:flex;align-items:center;gap:9px;
  transition:transform .25s ease,border-color .25s ease,background .25s ease;
}
.yl-svc-list a::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--blue-ink);flex:none}
.yl-svc-list a:hover{transform:translateY(-3px);border-color:var(--blue-ink);background:var(--blue)}

/* ---------- 6. 相关案例 ---------- */
.yl-more{background:var(--white)}
.yl-more-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.yl-more-card{display:block;background:var(--bg);border:2px solid var(--line);border-radius:var(--r-lg);overflow:hidden;transition:transform .3s ease,box-shadow .3s ease}
.yl-more-card:hover{transform:translateY(-6px);box-shadow:var(--shadow)}
.yl-more-card img{width:100%;aspect-ratio:16/9;object-fit:cover}
.yl-more-card b{display:block;padding:15px 16px 2px;font-size:16.5px}
.yl-more-card i{font-style:normal;display:block;padding:0 16px 16px;font-size:13px;color:var(--muted)}
.yl-more-link{text-align:center;margin-top:30px}
.yl-more-link a{font-weight:800;color:var(--blue-deep);border-bottom:2px dashed var(--blue-deep)}

/* ---------- 7. 客户评价 ---------- */
.yl-quote{background:var(--bg)}
.yl-quote-card{
  max-width:820px;margin:0 auto;text-align:center;
  background:#fff;border:2px solid var(--line);border-radius:var(--r-lg);
  padding:38px 36px;position:relative;
}
.yl-quote-card::before{
  content:"+";position:absolute;top:16px;right:24px;
  width:40px;height:40px;border-radius:50%;background:var(--green);
  display:flex;align-items:center;justify-content:center;
  color:var(--ink);font-size:22px;font-weight:900;
}
.yl-quote-card p{font-size:17px;line-height:1.95;margin-bottom:16px}
.yl-quote-card footer{font-size:14px;color:var(--muted);font-weight:700}

/* ---------- 8. CTA ---------- */
.yl-cta{background:var(--white)}
.yl-cta-band{
  position:relative;overflow:hidden;text-align:center;color:#fff;
  background:linear-gradient(120deg,#27424F,#2E6E96);
  border-radius:var(--r-lg);padding:54px 38px;
}
.yl-cta-blob{width:150px;height:150px;background:var(--green);left:-40px;bottom:-46px;opacity:.22;border-radius:40px}
.yl-cta-band h2{color:#fff;font-size:clamp(23px,3vw,32px);margin-bottom:12px;position:relative;z-index:2}
.yl-cta-band>p{color:#C9E4F2;margin-bottom:26px;position:relative;z-index:2}
.yl-cta-actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;position:relative;z-index:2}
.yl-cta-wechat{margin-top:20px;font-size:14.5px;color:#A9CFE2;position:relative;z-index:2}

/* ---------- 响应式 ---------- */
@media (max-width:1000px){
  .yl-brief-in{grid-template-columns:1fr;gap:40px}
  .yl-data-grid{grid-template-columns:1fr 1fr}
  .yl-point{grid-template-columns:1fr;gap:32px}
  .yl-svc-in{grid-template-columns:1fr;gap:36px}
  .yl-more-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:640px){
  .yl-data-grid{grid-template-columns:1fr}
  .yl-svc-list{grid-template-columns:1fr}
  .yl-more-grid{grid-template-columns:1fr}
}

/* ---------- 行业关键词与专属功能模块 ---------- */
.kw-sec{background:var(--cream);position:relative}
.kw-in{display:grid;grid-template-columns:1fr 1fr;gap:26px}
.kw-col{background:#fff;border:2px solid var(--line);border-radius:var(--r-lg);padding:28px 28px}
.kw-col h3{font-size:19px;margin-bottom:14px}
.kw-list li{display:flex;gap:10px;align-items:baseline;padding:9px 0;border-bottom:1px dashed var(--line);font-size:14.5px;line-height:1.6}
.kw-list li:last-child{border-bottom:0}
.kw-list li::before{content:"#";color:var(--blue-deep);font-weight:900;flex:none}
.kw-sec .sec-sub{color:var(--muted);margin-top:10px;max-width:640px}
@media (max-width:760px){.kw-in{grid-template-columns:1fr}}
.kw-note{margin-top:26px;background:#fff;border:2px solid var(--line);border-left:6px solid var(--blue-deep);border-radius:var(--r-md);padding:24px 26px}
.kw-note h3{font-size:18px;margin-bottom:10px}
.kw-note p{color:var(--muted);font-size:14.5px;line-height:1.9;margin-bottom:10px}
.kw-note p:last-child{margin-bottom:0}
.kw-faq{margin-top:22px;background:#fff;border:2px solid var(--line);border-radius:var(--r-lg);padding:26px 28px}
.kw-faq h3{font-size:18px;margin-bottom:12px}
.kw-faq details{border-bottom:1px dashed var(--line);padding:10px 0}
.kw-faq details:last-child{border-bottom:0}
.kw-faq summary{font-weight:800;cursor:pointer;font-size:14.5px}
.kw-faq details p{color:var(--muted);font-size:14px;line-height:1.8;margin-top:8px}