A polycarbonate resin composition (X), comprising: (A) a polycarbonate resin containing (a) a structural unit derived from a dihydroxy compound represented by the following formula , and (b) one or more of a structural unit derived from another dihydroxy compound selected from a dihydroxy compound of an aliphatic hydrocarbon and a dihydroxy compound of an alicyclic hydrocarbon, wherein the polycarbonate resin (A) is produced by using a catalyst containing at least one metal selected from the group consisting of a Group 2 metal of the long-form periodic table in an amount of 0.1 μmol or more and 20 μmol or less in terms of a metal amount per mol of all dihydroxy compounds; and (B) an aromatic polycarbonate resin, wherein the aromatic polycarbonate resin (B) contains a structural unit represented by the following formula in an amount of more than 70 mol% based on all structural units derived from dihydroxy compounds: -[-O-Ar 1 -X-Ar 2 -]-OC(=O)- , wherein in formula each of Ar 1 and Ar 2 independently represents an arylene group which may have a substituent; and X represents a single bond or a divalent group, wherein a reduced viscosity of the aromatic polycarbonate resin (B) is 0.55 dl/g or less, wherein the reduced viscosity is measured according to the description, 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, wherein the total light transmittance is measured in accordance with JIS K7105 with a D65 light source. (A) a polycarbonate resin containing (a) a structural unit derived from a dihydroxy compound represented by the following formula , and (b) one or more of a structural unit derived from another dihydroxy compound selected from a dihydroxy compound of an aliphatic hydrocarbon and a dihydroxy compound of an alicyclic hydrocarbon, wherein the polycarbonate resin (A) is produced by using a catalyst containing at least one metal selected from the group consisting of a Group 2 metal of the long-form periodic table in an amount of 0.1 μmol or more and 20 μmol or less in terms of a metal amount per mol of all dihydroxy compounds; and (a) a structural unit derived from a dihydroxy compound represented by the following formula , and (b) one or more of a structural unit derived from another dihydroxy compound selected from a dihydroxy compound of an aliphatic hydrocarbon and a dihydroxy compound of an alicyclic hydrocarbon, (B) an aromatic polycarbonate resin, wherein the aromatic polycarbonate resin (B) contains a structural unit represented by the following formula in an amount of more than 70 mol% based on all structural units derived from dihydroxy compounds: -[-O-Ar 1 -X-Ar 2 -]-OC(=O)- , wherein in formula each of Ar 1 and Ar 2 independently represents an arylene group which may have a substituent; and X represents a single bond or a divalent group, wherein a reduced viscosity of the aromatic polycarbonate resin (B) is 0.55 dl/g or less, wherein the reduced viscosity is measured according to the description, a proportion of the aromatic polycarbonate resin (B) in the polycarbonate resin composition (X) is 30 wt% or more, and each of Ar 1 and Ar 2 independently represents an arylene group which may have a substituent; and X represents a single bond or a divalent group, wherein a reduced viscosity of the aromatic polycarbonate resin (B) is 0.55 dl/g or less, wherein the reduced viscosity is measured according to the description, a proportion of the aromatic polycarbonate resin (B) in the polycarbonate resin composition (X) is 30 wt% or more, and <EOS>