A polycarbonate resin composition (X), comprises: (A) a polycarbonate resin containing (a) a structural unit derived from a dihydroxy compound having a moiety represented by the following formula (1) in a part of a structure; and (B) an aromatic polycarbonate resin, wherein a reduced viscosity of the aromatic polycarbonate resin (B) is 0.55 dl/g or less, a proportion of the aromatic polycarbonate resin (B) in the polycarbonate resin composition (X) is 30 wt % or more, and a total light transmittance of the polycarbonate resin composition (X) is 90% or less: CH2—O  (1).