可用手势控制的交互式 3D 机械手模拟

Build an interactive 3D robotic-hand simulation as a polished web app. Show a articulated mechanical hand with a wrist mount on a dark studio stage with a soft floor reflection, lit by cool rim light and a warm key light. Use brushed metal and dark composite materials with visible joints and tendons or actuators. Provide a side control panel with sliders and toggles for each finger's joint angles, preset gestures such as an open palm, a victory sign and a pointing finger, and live readouts. The hand should animate smoothly between poses, and the user can orbit, zoom and pan the camera. Use a dark interface with small cyan accents and clean technical typography. Deliver a single self-contained HTML file using Three.js, built from primitive geometry. Done when every finger bends convincingly, gestures transition without clipping, and the controls respond instantly.