(a) The relationship between the reflection strength |$R_s$| and total luminosity |$L_\mathrm{X}$| during the hard/hard-intermediate state. The stars, squares, dots, and triangles, respectively indicate the rise, plateau, and bright decline phases in the hard state and intermediate state. (b) The relationship between the electron temperature |$kT_\mathrm{ e}$| and total luminosity |$L_\mathrm{X}$| during the hard/hard-intermediate state. Symbols and colours are the same as in panel (a). The colour bar on the right corresponds to the observation time.