Chinese-SkillSpan: A Span-Level Dataset for ESCO-Aligned Competency Extraction from Chinese Job Ads. - Guojing Li; Zichuan Fu; Junyi Li 001; Wenxia Zhou; Xinyang Wu 008; Jinning Yang; Jingtong Gao; Feng Huang; Xiangyu Zhao 001 (CoRR, 2026)