Static Tailwind beauty job-board showcase, warm Linear-style UI, sticky nav, mock listings only

Static Tailwind beauty job-board showcase, warm Linear-style UI, sticky nav, mock listings only: a task in MiMo-V2.6-RL-oss: Agentic RL Environments (MiMo RL release). Static Tailwind beauty job-board showcase, warm Linear-style UI, sticky nav, mock listings only