/* merge.css —— 官网合并部署专用：产品页返回官网入口 */
.dz-back-site {
  position: fixed; top: 14px; right: 16px; z-index: 9999;
  display: inline-flex; align-items: center; gap: 6px;
  padding: 7px 14px; border-radius: 999px;
  font: 600 12.5px/1 "PingFang SC", "Microsoft YaHei", sans-serif;
  color: #9fb0c2; background: rgba(10, 16, 24, .72);
  border: 1px solid rgba(255, 255, 255, .12);
  text-decoration: none; backdrop-filter: blur(10px);
  transition: color .15s, border-color .15s, background .15s;
}
.dz-back-site:hover { color: #22d3c5; border-color: rgba(34, 211, 197, .55); background: rgba(6, 20, 22, .85); }