/* ============================================================
   苏州悦明声科技有限公司 — 产品方向区块（轨道检测 / 工业检测）
   依赖 site.css 设计令牌；可独立维护，后续加产品只需复制卡片
   ============================================================ */

#products{border-top:1px solid var(--line-2)}

/* ---------- 头部：左文案 / 右原理示意 ---------- */
.prod-kicker{display:flex;flex-wrap:wrap;align-items:baseline;
  justify-content:flex-start;gap:8px 18px;margin-bottom:2px}
.prod-kicker .shead{margin:0}

.prod-head{
  display:grid;grid-template-columns:minmax(0,.8fr) minmax(0,1.2fr);
  gap:clamp(28px,4.6vw,64px);align-items:start;margin-top:clamp(26px,3vw,40px);
}
.prod-copy{min-width:0}
.prod-title{
  font-size:clamp(28px,3.4vw,48px);line-height:1.2;letter-spacing:-.03em;
  font-weight:700;margin:16px 0 18px;text-wrap:balance;
}
.prod-title .accent-text{color:var(--accent)}
.prod-lead{
  color:var(--ink-2);font-size:14.5px;line-height:1.9;
  max-width:min(50ch,100%);margin:0 0 22px;
}
.prod-lead b{color:var(--ink);font-weight:600}
.prod-chips{display:flex;flex-wrap:wrap;gap:8px;margin:0 0 26px}
.prod-chip{
  font-family:var(--mono);font-size:10px;letter-spacing:.1em;text-transform:uppercase;
  color:var(--ink-2);border:1px solid var(--line);background:rgba(255,255,255,.35);
  padding:5px 9px;white-space:nowrap;
}
.prod-acts{display:flex;flex-wrap:wrap;gap:12px;align-items:center}
.prod-acts .btn{flex:0 1 auto}

/* ---------- 原理示意 ---------- */
.prod-fig{
  position:relative;margin:0;border:1px solid var(--line);
  background:var(--paper-2);overflow:hidden;min-width:0;
}
.prod-fig::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(var(--line-2) 1px,transparent 1px),
                   linear-gradient(90deg,var(--line-2) 1px,transparent 1px);
  background-size:28px 28px;opacity:.9;
}
.prod-fig__scroll{overflow:hidden;min-width:0}
.prod-fig svg{display:block;position:relative;width:100%;height:auto}
.prod-fig figcaption{
  display:flex;justify-content:space-between;gap:12px;align-items:center;
  border-top:1px solid var(--line);padding:10px 14px;position:relative;
  background:rgba(243,241,236,.62);
}
.prod-fig figcaption span{
  font-family:var(--mono);font-size:9.5px;letter-spacing:.12em;
  color:var(--muted);text-transform:uppercase;
}

/* ---------- 产品卡片 ---------- */
.prod-grid{
  display:grid;grid-template-columns:repeat(3,1fr);gap:0;
  margin-top:clamp(36px,5vw,64px);
  border-top:1px solid var(--line);border-left:1px solid var(--line);
}
.prod-card{
  display:flex;flex-direction:column;position:relative;min-width:0;
  border-right:1px solid var(--line);border-bottom:1px solid var(--line);
  background:transparent;transition:background .25s var(--ease),transform .25s var(--ease);
}
.prod-card::before{
  content:"";position:absolute;left:0;top:0;height:2px;width:0;
  background:var(--accent);transition:width .3s var(--ease);z-index:2;
}
.prod-card:hover{background:rgba(255,255,255,.42);transform:translateY(-2px)}
.prod-card:hover::before{width:100%}

/* 样机图位：暂无照片时显示占位；有照片时直接 <img> 铺满 */
.prod-media{
  position:relative;margin:0;aspect-ratio:16/10;overflow:hidden;
  background:var(--paper-2);border-bottom:1px solid var(--line-2);
  display:flex;align-items:center;justify-content:center;
}
.prod-media::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(var(--line-2) 1px,transparent 1px),
                   linear-gradient(90deg,var(--line-2) 1px,transparent 1px);
  background-size:22px 22px;opacity:.7;
}
.prod-media picture{position:absolute;inset:0;display:block}
.prod-media img{position:relative;width:100%;height:100%;object-fit:contain;
  padding:22px 26px;display:block;z-index:1}
.prod-media img.is-cover{object-fit:cover;padding:0;filter:saturate(.78) contrast(1.03)}
.prod-media--photo::before{opacity:.35}
a.prod-go{color:inherit;text-decoration:none;transition:color .2s}
a.prod-go:hover{color:var(--accent)}
.prod-media__ph{
  position:relative;z-index:1;display:flex;flex-direction:column;
  align-items:center;gap:8px;text-align:center;
  border:1px dashed var(--line);padding:18px 24px;
  background:rgba(243,241,236,.55);
  font-family:var(--mono);font-size:9px;letter-spacing:.16em;
  color:var(--muted);text-transform:uppercase;line-height:1.9;
}
.prod-media__ph svg{width:22px;height:22px;opacity:.75}
.prod-media__ph b{font-weight:500;letter-spacing:.2em;font-size:9.5px}
.prod-media__tag{
  position:absolute;right:10px;bottom:9px;z-index:2;
  padding:3px 7px;border-radius:2px;background:rgba(243,241,236,.9);
  font-family:var(--mono);font-size:8.5px;letter-spacing:.14em;
  color:var(--ink-2);text-transform:uppercase;
}

.prod-card__body{
  display:flex;flex-direction:column;gap:12px;
  padding:clamp(20px,2.2vw,30px);
}
.prod-card__top{display:flex;align-items:center;justify-content:space-between;gap:10px}
.prod-card__no{
  font-family:var(--mono);font-size:10.5px;letter-spacing:.14em;color:var(--muted);
}
.prod-card__no b{color:var(--ink);font-weight:600;margin-right:8px}
.prod-pill{
  font-family:var(--mono);font-size:9px;letter-spacing:.06em;color:var(--muted);
  border:1px solid var(--line-2);padding:3px 7px;white-space:nowrap;
}
.prod-card h3{
  font-size:18px;line-height:1.4;font-weight:600;letter-spacing:-.01em;margin:0;
}
.prod-card h3 span{
  display:block;margin-top:6px;font-family:var(--mono);
  font-size:9px;letter-spacing:.15em;color:var(--muted);
  font-weight:400;text-transform:uppercase;
}
.prod-card p{
  color:var(--ink-2);font-size:12.5px;line-height:1.85;margin:0;flex:1;
}
.prod-spec{display:flex;flex-direction:column;margin-top:2px}
.prod-spec div{
  display:flex;justify-content:space-between;gap:12px;
  padding:6px 0;border-bottom:1px dotted var(--line-2);
  font-size:11.5px;color:var(--muted);
}
.prod-spec div:last-child{border-bottom:0}
.prod-spec b{font-weight:400;color:var(--ink-2)}
.prod-spec i{font-style:normal;font-family:var(--mono);font-size:10px;letter-spacing:.06em;color:var(--muted)}
.prod-go{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding-top:12px;border-top:1px solid var(--line-2);
  font-size:12px;color:var(--ink-2);
}
.prod-go .is-building{
  font-family:var(--mono);font-size:9.5px;letter-spacing:.12em;color:var(--muted);
}

/* ---------- 更多方向 / 脚注 ---------- */
.prod-more{
  display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;
  margin-top:24px;padding-top:16px;border-top:1px solid var(--line-2);
  font-size:12.5px;color:var(--muted);
}
.prod-more p{margin:0}
.prod-more b{color:var(--ink-2);font-weight:600}
.prod-more a{
  color:var(--ink-2);border-bottom:1px solid var(--line);padding-bottom:2px;
  transition:color .2s,border-color .2s;
}
.prod-more a:hover{color:var(--accent);border-color:var(--accent)}
.prod-note{margin:18px 0 0;font-size:11.5px;color:var(--muted)}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .prod-head{grid-template-columns:1fr;gap:32px}
  .prod-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:720px){
  .prod-title{font-size:clamp(26px,7.2vw,34px)}
  .prod-lead{font-size:14px}
  .prod-acts{flex-direction:column;align-items:stretch}
  .prod-acts .btn{justify-content:center;text-align:center}
  .prod-grid{grid-template-columns:1fr}
  .prod-media{aspect-ratio:16/10}
  .prod-fig__scroll{overflow-x:auto;-webkit-overflow-scrolling:touch}
  .prod-fig__scroll svg{min-width:560px}
  .prod-fig__scroll::after{content:"← 左右滑动查看完整图纸 →";display:block;
    padding:6px 12px;font-family:var(--mono);font-size:9px;letter-spacing:.12em;
    color:var(--muted);text-align:center;border-top:1px solid var(--line-2)}
  .prod-fig figcaption{flex-direction:column;align-items:flex-start;gap:4px}
  .prod-more{flex-direction:column;align-items:flex-start}
}
@media (prefers-reduced-motion:reduce){
  .prod-card{transition:none}
  .prod-card:hover{transform:none}
}