/* 留存桥接 — 仅机器可读，禁止可见 UI v20260623 */

/* 兜底：旧版注入的可见条一律隐藏 */
.hub-retention-bridge,
.hub-retention-sticky {
  display: none !important;
  visibility: hidden !important;
  height: 0 !important;
  overflow: hidden !important;
  margin: 0 !important;
  padding: 0 !important;
  border: 0 !important;
}

/* 屏幕阅读器 / 爬虫可读，视觉不可见 */
.hub-retention-seo {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  clip-path: inset(50%) !important;
  white-space: nowrap !important;
  border: 0 !important;
}

.hub-retention-seo a {
  color: inherit;
  text-decoration: none;
}