Nature Materials, Published online: 01 May 2026; doi:10.1038/s41563-026-02605-7A heterostructure comprising a trilayer of gallium, sandwiched between graphene and silicon carbide, exhibits Ising-type superconductivity driven by quantum confinement and interfacial orbital hybridization. This light-element superconductor retains its superconductivity under in-plane magnetic fields three times larger than the Pauli paramagnetic limit of conventional superconductors.