/* zhengshu.html 页面专属样式 · 烘焙复古风（零内联，视觉全在此文件） */

/* ---- 通用工具 ---- */
.sec-deep{background:var(--cream-deep)}
.crumb{margin-bottom:16px}
.crumb span{color:var(--muted)}
.txt-center{text-align:center}
.glow-gold{background:var(--gold);width:240px;height:240px;top:-70px;right:-50px}

/* ---- H3 全宽大图 Banner（左下标题 + 圆章） ---- */
.h3h{position:relative;min-height:460px;display:flex;align-items:flex-end;padding:150px 0 70px;overflow:hidden}
.h3h .banner-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:0}
.h3h::before{content:"";position:absolute;inset:0;z-index:1;background:linear-gradient(90deg,rgba(46,26,12,.9) 0%,rgba(46,26,12,.55) 55%,rgba(46,26,12,.2) 100%)}
.h3h-in{position:relative;z-index:2;color:var(--cream);max-width:740px}
.h3h-in .crumb a{color:var(--gold-bright)}
.h3h-in .crumb span{color:rgba(251,244,232,.7)}
.h3h-in h1{color:var(--cream);font-size:clamp(30px,4.6vw,52px);margin:12px 0 16px}
.h3h-in p{color:rgba(251,244,232,.85);font-size:16px;margin-bottom:26px;max-width:600px}
.h3h .stamp{position:absolute;right:6%;bottom:64px;z-index:3}

.zs-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.zs-card{background:var(--paper);border:1px solid var(--line-soft);border-radius:18px;padding:30px 24px;box-shadow:var(--shadow-sm);transition:transform .3s,box-shadow .3s}
.zs-card:nth-child(odd){transform:translateY(16px)}
.zs-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-md)}
.zs-card:nth-child(odd):hover{transform:translateY(10px)}
.zs-card h4{margin-bottom:10px;font-size:17px}
.zs-card p{font-size:14px;line-height:1.9}
@media(max-width:1024px){.zs-grid{grid-template-columns:repeat(2,1fr)}.zs-card,.zs-card:nth-child(odd){transform:none}.zs-card:nth-child(odd):hover{transform:translateY(-6px)}}
@media(max-width:640px){.zs-grid{grid-template-columns:1fr}}

/* ---- 响应式 ---- */
@media(max-width:1024px){
  .h1h-in,.h4h-in,.h5h-in{grid-template-columns:1fr;gap:36px;padding-bottom:40px}
  .h1h-media::before,.h4h-media::before{inset:14px 14px -14px -14px}
}