/* ============================================================
   gaoduan-dingzhi.css 高端定制建站
   Hero 变体：H6 双栏图（一大一小叠放）
   ============================================================ */

/* ---------- H6 Hero ---------- */
.gd-hero{position:relative;overflow:hidden;padding:70px 0 80px;background:var(--bg)}
.gd-h-vline{left:46%;opacity:.3}
.gd-h-dots{top:30%;left:50%}
.gd-h-in{display:grid;grid-template-columns:1fr 1fr;gap:50px;align-items:center}
.gd-h-text h1{margin:18px 0 16px;font-size:clamp(30px,4vw,46px)}
.gd-h-text h1 em{font-style:normal;color:var(--blue-ink)}
.gd-h-text>p{color:var(--muted);max-width:540px}
.gd-h-cta{display:flex;gap:14px;margin-top:26px;flex-wrap:wrap}
.gd-h-media{position:relative;height:380px}
.gd-h-main{position:absolute;right:0;top:0;width:72%;aspect-ratio:4/3;object-fit:cover;z-index:2}
.gd-h-sub{position:absolute;left:0;bottom:0;width:55%;aspect-ratio:4/3;object-fit:cover;border:5px solid #fff;z-index:3}

/* ---------- 纵向长条卡 ---------- */
.gd-vlist{display:flex;flex-direction:column;gap:16px}
.gd-vrow{
  display:flex;gap:20px;background:#fff;border:2px solid var(--line);
  border-radius:var(--r-lg);padding:24px 28px;box-shadow:var(--shadow-sm);
}
.gd-vbar{width:8px;border-radius:6px;background:var(--blue);flex:none}
.gd-vbar-g{background:var(--green-deep)}
.gd-vbar-y{background:var(--yellow-deep)}
.gd-vbody h3{margin-bottom:6px}
.gd-vbody p{color:var(--muted);font-size:14.5px}

/* ---------- 阶梯错位步骤 ---------- */
.gd-flow{background:var(--cream);overflow:hidden}
.gd-f-xline{bottom:30%;opacity:.3}
.gd-steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.gd-step{
  background:#fff;border:2px solid var(--line);border-radius:var(--r-md);padding:22px;
  box-shadow:var(--shadow-sm);
}
.gd-step:nth-child(2){transform:translateY(24px)}
.gd-step:nth-child(4){transform:translateY(24px)}
.gd-step b{display:block;font-size:16.5px;margin-bottom:8px;color:var(--blue-ink)}
.gd-step i{font-style:normal;color:var(--muted);font-size:13.5px;line-height:1.7}

/* ---------- 案例大小卡 ---------- */
.gd-case-in{display:grid;grid-template-columns:1.2fr .8fr;gap:24px;align-items:stretch}
.gd-case-main{
  position:relative;border-radius:var(--r-lg);overflow:hidden;display:block;border:2px solid var(--line);
}
.gd-case-main img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3}
.gd-case-cap{
  position:absolute;left:0;right:0;bottom:0;padding:36px 20px 16px;color:#fff;
  background:linear-gradient(180deg,transparent,rgba(39,66,79,.85));
}
.gd-case-cap b{display:block;font-size:18px}
.gd-case-cap i{font-style:normal;font-size:13.5px;color:#D7ECF6}
.gd-case-side{display:grid;grid-template-rows:1fr 1fr;gap:24px}
.gd-case-side a{
  position:relative;border-radius:var(--r-md);overflow:hidden;display:block;border:2px solid var(--line);
}
.gd-case-side img{width:100%;height:100%;object-fit:cover;aspect-ratio:16/9}
.gd-case-side b{
  position:absolute;left:0;right:0;bottom:0;padding:20px 14px 10px;color:#fff;font-size:14.5px;
  background:linear-gradient(180deg,transparent,rgba(39,66,79,.85));
}
.gd-case-more{text-align:center;margin-top:24px}

/* ---------- FAQ ---------- */
.gd-faq-wrap{max-width:840px}
.gd-faq-item{
  background:#fff;border:2px solid var(--line);border-radius:var(--r-md);
  padding:0 22px;margin-bottom:14px;border-top:6px solid var(--blue-ink);
}
.gd-faq-item summary{cursor:pointer;list-style:none;padding:16px 0;font-weight:700;display:flex;justify-content:space-between;gap:12px;align-items:center}
.gd-faq-item summary::-webkit-details-marker{display:none}
.gd-faq-item summary::after{content:"+";font-size:22px;color:var(--blue-deep);flex:none}
.gd-faq-item[open] summary::after{transform:rotate(45deg)}
.gd-faq-item p{padding:0 0 16px;color:var(--muted);font-size:14.5px}

/* ---------- CTA ---------- */
.gd-cta-band{text-align:center;background:linear-gradient(120deg,var(--blue),var(--blue-ink));border-radius:var(--r-lg);padding:56px 30px;color:#fff}
.gd-cta-band h2{color:#fff;margin-bottom:14px;font-size:clamp(26px,3.4vw,40px)}
.gd-cta-band p{color:#D7ECF6;max-width:600px;margin:0 auto}
.gd-cta-actions{display:flex;justify-content:center;gap:14px;margin:26px 0 14px;flex-wrap:wrap}
.gd-cta-meta{font-size:14px;color:#B6D6E6}

@media (max-width:960px){
  .gd-h-in,.gd-case-in,.gd-steps{grid-template-columns:1fr}
  .gd-step:nth-child(2),.gd-step:nth-child(4){transform:none}
  .gd-h-media{height:auto}
  .gd-h-main,.gd-h-sub{position:static;width:100%;margin-bottom:16px}
}