#tuce-endpoint-upgrade-board {
  position: fixed; left: 24px; bottom: 24px; z-index: 10020;
  width: min(520px, calc(100vw - 48px)); background: #0f172a; color: #e2e8f0;
  border-radius: 14px; padding: 14px; box-shadow: 0 18px 42px rgba(2,6,23,.32);
}
#tuce-endpoint-upgrade-board .tuce-board-head { font-weight: 700; margin-bottom: 8px; }
#tuce-endpoint-upgrade-board .tuce-mini-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
#tuce-endpoint-upgrade-board .tuce-mini-card { background: rgba(255,255,255,.06); border-radius: 10px; padding: 10px; font-size: 12px; }