Illustrate a vector-based panoramic view of the Arosa mountains at sunrise during winter, capturing the serene beauty of the snowy landscape. Utilize flat vector illustration techniques to depict the crisp, clean lines of the mountains and the soft, undulating curves of the snow-covered terrain. Incorporate warm, golden hues into the sunrise to contrast with the cool tones of the winter landscape. Pay attention to the interplay of light and shadow, highlighting the subtle textures and details of the snow. Ensure that the composition conveys a sense of tranquility and harmony, inviting viewers to immerse themselves in the peaceful winter scene. --ar 16:9