Team SEC, formed by PhD students Qingyu Guo, Linfeng Zhong, Songqiang Xu, and Renjie Wei has won the 1st Place in AICAS Grand Challenge on LLM System Design. Prof. Yuan Wang and I are the supervisors for the team. In the contest, Team SEC successfully deploys a Qwen-0.5B LLM on a lightweight KV260 FPGA and achieves 35 tokens/s decoding throughput, 4 times higher than the second place.