Generate a highly detailed, ultra-high-definition (16K UHD) comic book illustration of Catwoman (Selina Kyle) and Batman (Bruce Wayne) standing together on the rooftop of a Gotham City building at night. The two are facing each other, locked in an intense, romantic gaze, their love and tension palpable. Catwoman, in her sleek black leather catsuit with her mask on, has a confident yet tender expression. Batman, in his iconic dark suit and cape, stands strong and protective. The moonlight softly illuminates their faces, while the distant Gotham skyline and glowing city lights form the backdrop. The rooftop is dimly lit, and their silhouettes stand out dramatically against the night sky. The art style is influenced by modern comic artists like Clay Mann and Jim Lee, focusing on strong, clean lines, expressive body language, and dynamic, atmospheric lighting. The mood is a mix of romance and mystery, with an epic, cinematic feel.