写实3D渲染，典型日间空置中学教室，单幅透视视角，正对教室后墙窗户拍摄。左侧墙面固定深绿色长黑板，黑板上方配有黑色框架公告栏，栏内嵌多块白色公告区。黑板前方偏左设置深棕色木质讲台，表面为清晰实木纹理。教室左右两侧整齐排列多组连体学生课桌椅，桌面与椅背为浅棕木纹材质，支撑框架为深灰色金属，桌下配有黑色储物抽屉。后墙正中安装白色边框六格玻璃窗，窗外可见鲜亮绿色树木。窗右侧墙面悬挂空白白色白板，最右侧墙面上设置浅蓝色教室门，门上方墙面装有三处黑色通风栅格。天花板为白色方格矿棉板吊顶，嵌入方形平板照明灯具。地面为浅灰色光滑水泥地坪。午后暖调自然光从窗户射入，在地面与墙面投射出清晰的窗框光影，整体空间明亮温暖，无人物。

Photorealistic 3D render of an empty typical middle school classroom in daytime, single perspective shot facing the rear wall window. A long dark green blackboard is mounted on the left wall, with a black-framed bulletin board above it embedded with multiple white notice areas. A dark brown solid wood podium is positioned slightly left in front of the blackboard. Rows of connected student desks and chairs are neatly arranged on both sides of the classroom, with light brown wood-grain desktops and backrests, dark gray metal support frames, and black storage drawers under the desks. A white-framed six-pane window is centered on the rear wall, with vibrant green trees visible outside. A blank whiteboard hangs on the wall to the right of the window, and a light blue classroom door is set on the far right wall, with three black ventilation grilles mounted above the door. The ceiling is a white square mineral wool drop ceiling with embedded square flat panel light fixtures. The floor is a light gray smooth cement floor. Warm afternoon natural light streams through the window, casting clear window frame shadows on the floor and walls. The space is bright and warm, with no people present.