Adebrelimab With Chemoradiotherapy and Surgery for G/GEJ

"* Adebrelimab: Given concurrently with chemotherapy, 1200mg by intravenous infusion every three weeks for four cycles.~* Chemotherapy: Oxaliplatin 130mg/m² on day 1 + Capecitabine 1000mg/m² bid (XELOX regimen), from day 1 to day 14, repeated every three weeks for four cycles;~* Radiotherapy: Unresectable limited metastatic lesions with SBRT; Potentially resectable lesions with low-dose radiotherapy.~* Surgery: Performed 3-5 weeks after the completion of conversion therapy."