Developing　high-performance　oxygen　reduction　reaction　(ORR)　catalysts　with　minimal　Pt　loading　while　maintaining　excellent　activity　and　durability　remains　a　critical　challenge　for　the　commercialization　of　proton　exchange　membrane　fuel　cells　(PEMFCs).　Herein,　a　hybrid　catalyst　comprising　Co-Zn　dual-atomic　sites　and　L10-ordered　PtCoZn　intermetallics　with　a　Pt-rich　shell　(denoted　as　L10-PtCoZn@Pt-CoZnDA)　is　presented　for　high　ORR　performance.　The　optimized　catalyst　delivers　a　remarkable　mass　activity　of　2.33　A　mgPt-1,　exceeding　that　of　commercial　Pt/C　(0.148　A　mgPt-1)　by　more　than　16-fold.　PEMFC　testing　further　verifies　its　excellent　durability　and　high　current　density,　verifying　its　practical　potential.　Combined　experimental　and　theoretical　studies　attribute　the　superior　performance　to　the　synergistic　interplay　between　the　compressively　strained　Pt　skin,　encapsulating　the　atomically　ordered　L10-PtCoZn　core,　and　the　adjacent　Co-Zn-N5　sites.　This　well-integrated　architecture　not　only　tunes　the　electronic　structure　and　optimizes　intermediate　adsorption　energies　but　also　facilitates　a　dual-channel　electron　acceptance-backdonation　mechanism　for　efficient　O　&　horbar;O　bond　activation.　Furthermore,　a　dual-site　associative　ORR　pathway　is　promoted,　where　electronic　coupling　between　the　Co-Zn-N5　sites　and　Pt　skin　enhances　*O　&　horbar;OH　bond　cleavage　and　accelerates　reaction　kinetics.　This　work　offers　a　viable　strategy　for　the　rational　design　of　next-generation　Pt-based　electrocatalysts　with　enhanced　activity　and　stability　for　PEMFC　applications.