@article{vigilpartgroundedstructuredreasoningforg, title = {VIGIL: Part-Grounded Structured Reasoning for Generalizable Deepfake Detection}, author = {Xinghan Li and Junhao Xu and Jingjing Chen}, year = {2026}, eprint = {2603.21526}, archivePrefix = {arXiv}, url = {https://arxiv.org/abs/2603.21526}, }