diff --git a/index.html b/index.html
index 961397b..66eff7f 100644
--- a/index.html
+++ b/index.html
@@ -22,22 +22,23 @@
     document.body.appendChild(renderer.domElement);
 
     // 2. 添加立方体
-    const geometry = new THREE.BoxGeometry(1, 1, 1);
-    const material = new THREE.MeshStandardMaterial({ color: 0xff0000, roughness: 0.5, metalness: 0.8 }); // 红色，中等粗糙度，高金属感
-    const cube = new THREE.Mesh(geometry, material);
+    const cube = new THREE.Mesh(
+        new THREE.BoxGeometry(1, 1, 1),
+        new THREE.MeshStandardMaterial({ color: 0xff0000, roughness: 0.5, metalness: 0.8 }) // 红色，中等粗糙度，高金属感
+    );
     scene.add(cube);
 
     // 添加地面
-    const planeGeometry = new THREE.PlaneGeometry(10, 10); // 地面大小
-    const planeMaterial = new THREE.MeshStandardMaterial({ color: 0x808080, roughness: 0.5, metalness: 0.8 }); // 红色，中等粗糙度，高金属感
-    const plane = new THREE.Mesh(planeGeometry, planeMaterial);
+    const plane = new THREE.Mesh(
+        new THREE.PlaneGeometry(10, 10), // 地面大小
+        new THREE.MeshStandardMaterial({ color: 0x808080, roughness: 0.5, metalness: 0.8 }) // 红色，中等粗糙度，高金属感
+    );
     plane.rotation.x = -Math.PI / 2; // 旋转地面，使其水平
-    plane.position.y = -1; // 将地面放置在立方体下方
+    plane.position.y = -1;           // 将地面放置在立方体下方
     scene.add(plane);
 
     // 添加光源
-    const ambientLight = new THREE.AmbientLight(0x404040, 1); // 环境光，柔和的白光
-    scene.add(ambientLight);
+    scene.add(new THREE.AmbientLight(0x404040, 1)); // 环境光，柔和的白光
     const directionalLight = new THREE.DirectionalLight(0xffffff, 0.8); // 平行光
     directionalLight.position.set(5, 5, 5); // 设置光源位置
     scene.add(directionalLight);