Results of the WWZ analysis for the CSS V-band, the ZTF g-band and r-band light curves. For the ZTF r-band light curve (top panel), two periodicities are identified at approximately 950±42 days and 270±3.5 days. For the ZTF g-band light curve (middle panel), two periodicities are around 1405±40 days and 225±3 days. For the CSS V-band light curve (bottom panel), two periodicities are around 1265±40 days and 265±3 days. In each panel, the dashed vertical red lines mark the positions for the periodicities.