/* ============================================================
   SEO学院 · anli-huagong.css（化工行业案例详情）
   hero 骨架：H4 大圆叠图；竖向切割线 + 真圆卡数据
   ============================================================ */

/* ---------- 1. Hero：大圆叠图 ---------- */
.hg-hero{padding:44px 0 80px;overflow:hidden;background:linear-gradient(180deg,#EAF6FC,#F3FAFD)}
.hg-hero-v{right:18%;opacity:.3}
.hg-blob{width:130px;height:130px;background:var(--green);left:10%;bottom:20px;opacity:.3;border-radius:38px}
.hg-hero-in{display:grid;grid-template-columns:1.1fr 1fr;gap:50px;align-items:center}
.hg-hero-text h1{font-size:clamp(30px,3.8vw,46px);line-height:1.26;margin:16px 0 18px}
.hg-hero-text h1 em{font-style:normal;color:var(--green-deep)}
.hg-hero-text>p{color:var(--muted);margin-bottom:26px;max-width:540px}
.hg-hero-cta{display:flex;gap:14px;flex-wrap:wrap}
.hg-hero-media{position:relative;display:flex;justify-content:center}
.hg-hero-circle{
  width:min(360px,80%);aspect-ratio:1/1;object-fit:cover;
  border-radius:50%;border:8px solid #fff;box-shadow:var(--shadow);
}
.hg-hero-ring{
  position:absolute;top:6%;left:50%;transform:translateX(-50%);
  width:78%;aspect-ratio:1/1;border-radius:50%;
  border:3px dashed var(--green);opacity:.7;
}
.hg-hero-cap{
  position:absolute;bottom:6px;left:50%;transform:translateX(-50%) rotate(-2deg);
  background:var(--blue-ink);color:#fff;font-size:13px;font-weight:700;
  padding:9px 16px;border-radius:12px;white-space:nowrap;box-shadow:var(--shadow-sm);
}

/* ---------- 2. 项目背景：左图右文 ---------- */
.hg-bg{background:#fff}
.hg-bg-in{display:grid;grid-template-columns:1fr 1.15fr;gap:56px;align-items:center}
.hg-bg-media{position:relative}
.hg-bg-media .photo{width:100%;aspect-ratio:16/10}
.hg-bg-media::after{
  content:"";position:absolute;width:80%;height:80%;border:3px solid var(--blue);
  border-radius:var(--r-lg);right:-16px;bottom:-16px;z-index:-1;
}
.hg-bg-sticker{
  position:absolute;right:-14px;top:-16px;background:var(--blue);color:var(--ink);
  font-size:13px;font-weight:800;padding:9px 16px;border-radius:12px;box-shadow:var(--shadow-sm);
}
.hg-bg-text h2{margin-bottom:18px}
.hg-bg-text p{color:var(--muted);margin-bottom:14px}

/* ---------- 3. 需求/解法：左右对照栏 ---------- */
.hg-needs{background:var(--bg);position:relative}
.hg-needs-x{top:24%}
.hg-needs-cols{display:grid;grid-template-columns:1fr 1fr;gap:26px}
.hg-col{
  border-radius:var(--r-lg);padding:32px 32px;position:relative;overflow:hidden;
}
.hg-col-need{background:#fff;border:2px solid var(--line)}
.hg-col-solve{background:var(--cream);border:2px solid var(--green-deep)}
.hg-col h3{margin-bottom:18px;font-size:20px}
.hg-col-need h3{color:var(--muted)}
.hg-col li{
  position:relative;padding:9px 0 9px 26px;font-size:15px;border-bottom:1px dashed var(--line);
}
.hg-col li:last-child{border-bottom:0}
.hg-col-need li::before{content:"";position:absolute;left:2px;top:16px;width:11px;height:11px;border-radius:3px;background:var(--blue)}
.hg-col-solve li::before{content:"";position:absolute;left:2px;top:16px;width:11px;height:11px;border-radius:50%;background:var(--green-deep)}

/* ---------- 4. 数据成果：真圆卡 ---------- */
.hg-data{background:#fff;position:relative}
.hg-data-v{right:12%;left:auto;opacity:.25}
.hg-data-circles{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;text-align:center}
.hg-circle{
  width:180px;height:180px;margin:0 auto;border-radius:50%;
  background:var(--bg);border:3px solid var(--blue);
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  transition:transform .3s ease,box-shadow .3s ease;
}
.hg-circle:hover{transform:translateY(-8px) rotate(-2deg);box-shadow:var(--shadow)}
.hg-circle-y{border-color:var(--yellow-deep);background:#FFFBEA}
.hg-circle-g{border-color:var(--green-deep);background:#EFFAF4}
.hg-circle b{font-size:30px;font-weight:900;color:var(--blue-ink);line-height:1.2}
.hg-circle span{font-size:13px;color:var(--muted);font-weight:600;padding:0 14px}
.hg-data-note{text-align:center;margin-top:30px;font-size:13.5px;color:var(--muted)}

/* ---------- 5. 行业关键词云 ---------- */
.hg-words{background:var(--cream)}
.hg-word-cloud{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;max-width:900px;margin:0 auto}
.hg-word-cloud span{
  background:#fff;border:2px solid var(--line);border-radius:999px;padding:10px 20px;
  font-weight:700;font-size:14.5px;color:var(--blue-ink);
  transition:transform .25s ease,border-color .25s ease,background .25s ease;
}
.hg-word-cloud span:nth-child(odd){border-color:var(--green-deep)}
.hg-word-cloud span:hover{transform:translateY(-4px);background:var(--blue);color:var(--ink)}

/* ---------- 6. 设计亮点：横条卡 ---------- */
.hg-points{background:#fff}
.hg-strip{display:grid;grid-template-columns:1fr 1fr;gap:26px;align-items:start}
.hg-strip-card{
  background:var(--bg);border:2px solid var(--line);border-radius:var(--r-lg);overflow:hidden;
  transition:transform .3s ease,box-shadow .3s ease;
}
.hg-strip-down{transform:translateY(30px)}
.hg-strip-card:hover{transform:translateY(-6px);box-shadow:var(--shadow)}
.hg-strip-down:hover{transform:translateY(24px)}
.hg-strip-card img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:0}
.hg-strip-body{padding:22px 24px}
.hg-strip-no{
  display:inline-block;background:var(--blue);font-size:13px;font-weight:800;
  padding:5px 14px;border-radius:999px;margin-bottom:12px;
}
.hg-strip-body h3{margin-bottom:8px}
.hg-strip-body p{color:var(--muted);font-size:15px}

/* ---------- 7. 客户评价：左竖线引文 ---------- */
.hg-quote{background:var(--bg)}
.hg-quote-card{
  max-width:820px;margin:0 auto;background:#fff;border:2px solid var(--line);
  border-left:8px solid var(--green-deep);border-radius:var(--r-lg);
  padding:40px 44px;box-shadow:var(--shadow-sm);
}
.hg-quote-card p{font-size:18px;line-height:1.9;margin-bottom:16px}
.hg-quote-card footer{font-size:14px;color:var(--muted);font-weight:700}

/* ---------- 8. 相关案例 ---------- */
.hg-more{background:#fff}
.hg-more-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.hg-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;
}
.hg-more-card:hover{transform:translateY(-6px);box-shadow:var(--shadow)}
.hg-more-card img{width:100%;aspect-ratio:16/9;object-fit:cover}
.hg-more-card b{display:block;padding:16px 18px 2px;font-size:17px}
.hg-more-card i{font-style:normal;display:block;padding:0 18px 18px;font-size:13.5px;color:var(--muted)}
.hg-more-link{text-align:center;margin-top:34px}
.hg-more-link a{font-weight:800;color:var(--green-deep);border-bottom:2px dashed var(--green-deep)}

/* ---------- 9. 服务清单：编号纵列 ---------- */
.hg-svc{background:var(--bg)}
.hg-svc-in{display:grid;grid-template-columns:1.1fr 1fr;gap:56px;align-items:center}
.hg-svc-list{display:flex;flex-direction:column;gap:12px}
.hg-svc-list a{
  display:flex;align-items:center;gap:16px;background:#fff;border:2px solid var(--line);
  border-radius:var(--r-md);padding:14px 20px;font-weight:800;font-size:15px;
  transition:transform .25s ease,border-color .25s ease;
}
.hg-svc-list a b{
  width:34px;height:34px;border-radius:10px;background:var(--green);color:var(--ink);
  display:flex;align-items:center;justify-content:center;font-size:14px;flex:none;
}
.hg-svc-list a:hover{transform:translateX(8px);border-color:var(--green-deep)}
.hg-svc-text h2{margin-bottom:16px}
.hg-svc-text p{color:var(--muted);margin-bottom:26px}

/* ---------- 10. CTA ---------- */
.hg-cta{background:#fff}
.hg-cta-band{
  position:relative;overflow:hidden;text-align:center;
  background:linear-gradient(120deg,#3E86AD,var(--blue-ink));
  border-radius:var(--r-lg);padding:56px 40px;color:#fff;
}
.hg-cta-band h2{color:#fff;margin-bottom:12px}
.hg-cta-band h2 em{color:var(--yellow);font-style:normal}
.hg-cta-band>p{color:#C9E4F2;margin-bottom:28px}
.hg-cta-actions{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}
.hg-cta-wechat{margin-top:20px;font-size:14.5px;color:#A9CFE2}

/* ---------- 响应式 ---------- */
@media (max-width:1000px){
  .hg-hero-in,.hg-bg-in,.hg-svc-in{grid-template-columns:1fr;gap:40px}
  .hg-needs-cols,.hg-strip{grid-template-columns:1fr}
  .hg-strip-down{transform:none}
  .hg-strip-down:hover{transform:translateY(-6px)}
  .hg-data-circles{grid-template-columns:1fr 1fr;gap:30px}
  .hg-more-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:640px){
  .hg-data-circles,.hg-more-grid{grid-template-columns:1fr}
  .hg-circle{width:150px;height:150px}
}