/* ============================================================
   苗生堂 · 产品详情页 / 在线幻灯片样式
   依赖 style.css 的 CSS 变量
   ============================================================ */

.pd-top{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.94);backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line)}
.pd-top .container{display:flex;align-items:center;justify-content:space-between;height:62px;gap:14px}
.pd-brand{display:flex;align-items:center;gap:10px;font-family:var(--font-serif);font-weight:700;
  color:var(--green-900);font-size:17px}
.pd-brand img{width:32px;height:32px}
.pd-back{display:inline-flex;align-items:center;gap:6px;font-size:13.5px;color:var(--green-700);
  border:1px solid var(--green-300);border-radius:999px;padding:7px 15px;background:#fff}
.pd-back:hover{background:var(--green-700);color:#fff;border-color:var(--green-700)}

/* 面包屑 */
.pd-crumb{padding:18px 0 0;font-size:13px;color:var(--ink-soft);display:flex;gap:6px;flex-wrap:wrap}
.pd-crumb a{color:var(--green-700)}
.pd-crumb a:hover{color:var(--gold)}
.pd-crumb span{color:var(--ink)}

/* Hero */
.pd-hero{padding:18px 0 12px}
.pd-hero-grid{display:grid;grid-template-columns:minmax(0,440px) minmax(0,1fr);gap:38px;align-items:start}
.pd-shot{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
  box-shadow:var(--shadow-1)}
.pd-shot img{width:100%;aspect-ratio:4/3;object-fit:cover;background:var(--green-100)}
.pd-cat{display:inline-block;background:var(--green-900);color:#fff;font-size:12px;letter-spacing:.06em;
  padding:5px 12px;border-radius:6px;margin-bottom:12px}
.pd-title{font-size:clamp(26px,3.4vw,38px);color:var(--green-900);margin-bottom:10px}
.pd-desc{font-size:15.5px;color:var(--ink-soft);max-width:60ch}
.pd-tags{display:flex;flex-wrap:wrap;gap:8px;margin:16px 0 8px}
.pd-tags span{font-size:12.5px;background:var(--green-100);color:var(--green-700);
  padding:5px 12px;border-radius:8px;font-weight:600}
.pd-reg{font-size:13px;color:var(--ai-deep);font-weight:700;letter-spacing:.02em}
.pd-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px}
.pd-actions .btn{padding:12px 22px}

/* 幻灯片 */
.pd-deck{background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow-1);overflow:hidden;margin-top:12px}
.deck-head{display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:14px 20px;background:var(--green-900);color:#fff}
.deck-head b{font-family:var(--font-serif);font-size:16px;letter-spacing:.03em}
.deck-count{font-size:12.5px;color:var(--gold-soft)}
.deck-stage{position:relative;padding:34px 34px 30px;min-height:300px;background:
  radial-gradient(120% 100% at 100% 0,#FBF9F4 0%,#fff 60%)}
.deck-slide{display:none;animation:deckIn .35s ease both}
.deck-slide.active{display:block}
@keyframes deckIn{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:none}}
.deck-slide h4{font-family:var(--font-serif);font-size:22px;color:var(--green-900);margin-bottom:16px;
  padding-left:14px;border-left:4px solid var(--gold)}
.deck-slide ul{list-style:none;display:flex;flex-direction:column;gap:12px}
.deck-slide li{position:relative;padding-left:26px;font-size:15.5px;color:var(--ink)}
.deck-slide li::before{content:"◆";position:absolute;left:0;top:-1px;color:var(--gold);font-size:13px}
.deck-foot{display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:12px 20px;border-top:1px solid var(--line);background:#FCFBF8}
.deck-nav{display:flex;gap:10px}
.deck-btn{border:1.5px solid var(--green-300);background:#fff;color:var(--green-700);border-radius:10px;
  padding:8px 16px;font-size:13.5px;font-family:var(--font-sans);cursor:pointer;transition:all .2s}
.deck-btn:hover:not(:disabled){background:var(--green-700);color:#fff;border-color:var(--green-700)}
.deck-btn:disabled{opacity:.4;cursor:not-allowed}
.deck-dots{display:flex;gap:7px;flex-wrap:wrap}
.deck-dot{width:9px;height:9px;border-radius:50%;background:var(--line);border:none;cursor:pointer;padding:0}
.deck-dot.on{background:var(--gold);transform:scale(1.25)}
.deck-hint{font-size:12px;color:var(--ink-soft)}

/* 相关产品 */
.pd-related{padding:26px 0 60px}
.pd-related h3{font-size:20px;margin-bottom:16px;color:var(--green-900)}
.pd-rel-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:16px}
.pd-rel-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
  box-shadow:var(--shadow-1);transition:transform .2s,box-shadow .2s;display:block}
.pd-rel-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2)}
.pd-rel-card img{width:100%;aspect-ratio:4/3;object-fit:cover}
.pd-rel-card .t{padding:12px 14px 16px}
.pd-rel-card .t b{display:block;font-size:15px;color:var(--green-900);margin-bottom:4px}
.pd-rel-card .t span{font-size:12px;color:var(--ink-soft)}

.pd-foot{border-top:1px solid var(--line);padding:22px 0;color:var(--ink-soft);font-size:13px;
  text-align:center;background:#fff}

@media (max-width:860px){
  .pd-hero-grid{grid-template-columns:1fr;gap:22px}
  .deck-stage{padding:24px 20px;min-height:250px}
  .deck-slide h4{font-size:19px}
  .pd-actions .btn{flex:1;justify-content:center}
}