.buystan-build-save-notice:not([hidden]) {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  padding: 10px 12px;
  margin-bottom: 10px;
  border: 1px solid #c9d9ef;
  border-radius: 8px;
  background: #f3f7ff;
  color: #19355b;
  font-size: 14px;
  line-height: 1.4;
}
.buystan-build-save-notice > span { flex: 1 1 220px; }
.buystan-build-save-notice .btn { flex: 0 0 auto; min-height: 36px; }