The propagation behavior of hydraulic fractures in laminated shale is governed by the interplay between bedding plane weakness and in-situ stress fields; however, the quantitative effects of operational parameters and geological factors on trans-bedding fracture capability remain not fully elucidated. Large-scale true triaxial hydraulic fracturing experiments were conducted on natural Longmaxi Formation shale specimens from the Changning area, southern Sichuan Basin, combined with three-dimensio