Create a highly detailed and majestic mecha knight standing tall in the rain, resembling a powerful warrior from a futuristic world. The mecha should be clad in gleaming white armor with intricate golden accents, reflecting a blend of elegance and strength. The armor should have sharp, angular designs with layered plating, giving it a formidable appearance. The knight should be holding a massive, intricately designed sword, with glowing blue or orange energy lines running through it. The background should be dark and dramatic, with rain pouring down and sparks flying, adding to the epic and intense atmosphere. The lighting should emphasize the metallic sheen of the armor and the glowing energy, creating a visually striking contrast