The relationship between Chinese college students’ public safety sense and problematic smartphone use during the COVID- 19 pandemic: an analysis of moderated mediation effects - Wang, Fuqiang; Chen, Pinhong; Liu, Zhengkui; Wang, Lubin; Wang, Dongmei; Yang, Shichang; Zhang, Xiangyang (Current Psychology: A Journal for Diverse Perspectives on Diverse Psychological Issues, 2025)