Salle de classe STEM futuriste avec hologrammes

A bright futuristic classroom or science museum learning lab filled with school-age children interacting with large mixed-reality holograms, cinematic ultra-detailed photorealism. The scene is a wide-angle interior during warm late-afternoon sunlight, with floor-to-ceiling glass windows, modern tables, bookshelves, digital displays, and a clean high-tech educational atmosphere. About 9 children and 1 adult teacher are spread across the room, actively exploring science exhibits with gestures and touch interactions. In the center, a glowing semi-transparent holographic human heart floats at chest height while 3 children gather around it, reaching toward it in curiosity. Suspended overhead is a large holographic solar system mobile with exactly 9 planets orbiting a bright sun, with luminous orbit trails and a magical scientific visualization style. On the left side, one child interacts with a tall vertical holographic DNA double helix. On the front-left table, there is a circular tabletop hologram of a miniature mountain-and-river ecosystem containing exactly 4 visible animals: an elephant, a deer, a llama or alpaca, and a bear. On the back-left table, there is a circular holographic architectural city model featuring a grand classical domed building and surrounding structures. On the right-front table, there is a large ball-and-stick molecular model made of glowing spheres and rods. In the mid-right and upper-right space, include additional floating science holograms: exactly 2 geometric polyhedra, exactly 2 molecule diagrams, exactly 2 spherical energy or data globes, and 1 hourglass-like abstract hologram. The children should be ethnically diverse, dressed casually, engaged, amazed, collaborative, and looking at different holographic subjects. Use soft volumetric sunlight, realistic reflections on glass and tabletops, subtle blue and gold glow from the holograms, shallow atmospheric haze, and a premium inspirational STEM-education advertisement aesthetic.