/* 手机端商品详情样式 */
  *{margin:0;padding:0;box-sizing:border-box;-webkit-tap-highlight-color:transparent}
  body{font-family:-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;background:#eef0f4;color:#222}
  /* 电脑端访问时收窄居中，模拟手机窗口 */
  @media (min-width:561px){
    body{max-width:520px;margin:0 auto;min-height:100vh;box-shadow:0 0 26px rgba(0,0,0,.10);background:#fff}
  }
  .topbar{position:sticky;top:0;z-index:10;background:#fff;display:flex;align-items:center;height:48px;
          box-shadow:0 1px 3px rgba(0,0,0,.08);padding:0 12px}
  .topbar a{color:#ff5000;font-size:14px;text-decoration:none;font-weight:600}
  .topbar span{flex:1;text-align:center;font-size:15px;font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
  .gallery{background:#fff;padding:0 14px 14px}
  .gallery .mainbox{width:100%;aspect-ratio:1/1;background:#eef0f3;border-radius:10px;position:relative;overflow:hidden}
  .gallery .mainbox img{position:absolute;left:0;top:0;width:100%;height:100%;object-fit:contain;display:block}
  .gallery .thumbs{display:flex;gap:8px;overflow-x:auto;margin-top:8px}
  .gallery .thumbs img{width:72px;height:72px;object-fit:cover;border-radius:8px;flex:0 0 auto}
  .panel{background:#fff;margin-top:10px;padding:16px 14px;border-radius:10px}
  .panel .nm{font-size:17px;font-weight:700;line-height:1.4}
  .panel .price{margin-top:10px;color:#e8323c;font-size:24px;font-weight:700}
  .panel .price small{font-size:14px}
  .panel .ref{margin-top:6px;font-size:12px;color:#999}
  .panel .meta{margin-top:12px;border-top:1px dashed #eee;padding-top:12px;font-size:13px;color:#555;line-height:1.9}
  .panel .meta b{color:#333;min-width:64px;display:inline-block}
  .foot{text-align:center;color:#aaa;font-size:11px;padding:18px 0 28px}
  .btn{display:block;text-align:center;color:#999;font-size:13px;margin:6px 0 18px}