task : $7272$#How does the theory of civil engineering serve as the foundational framework for understanding and addressing the myriad challenges and complexities inherent in designing, constructing, and maintaining infrastructure systems essential for societal functioning? Explore the core principles underpinning civil engineering theory, such as structural mechanics, fluid dynamics, geotechnical engineering, and transportation systems, elucidating their roles in ensuring the safety, efficiency, and sustainability of infrastructure projects. Additionally, analyze the interdisciplinary nature of civil engineering theory, its integration with fields like environmental science, urban planning, and materials science, and its pivotal role in shaping the built environment to meet the evolving needs of contemporary society.