/* 顶部同步警告条(读失败时显示) */
.sync-banner {
  background: #FFE5E5;
  border: 1px solid #FFB3B3;
  color: #C0392B;
  border-radius: 12px;
  padding: 10px 14px;
  margin: 0 16px 12px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  font-size: 13px;
  font-weight: 600;
}
/* [hidden] 时强制 none,盖住上面的 display:flex */
.sync-banner[hidden] { display: none !important; }
.sync-banner-text { flex: 1; }
.sync-banner-btn {
  background: #C0392B;
  color: #fff;
  border: none;
  border-radius: 8px;
  padding: 5px 12px;
  font-size: 12px;
  font-weight: 700;
  cursor: pointer;
}
.sync-banner-btn:hover { background: #A93226; }
.sync-banner-btn:active { transform: scale(0.96); }