初始化多多畅职企业内推平台项目

功能特性：
- 3D地球动画与中国地图可视化
- 省份/城市/企业搜索功能
- 308家企业数据展示
- 响应式设计（PC端和移动端）
- 企业详情页面与业务板块展示
- 官网新闻轮播图

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

js/scene/StarSystem.js

@@ -0,0 +1,100 @@
+/* ===================================
+   星空系统 - 彩色星星点缀
+   =================================== */
+
+import { CONFIG } from '../config.js';
+
+export class StarSystem {
+    constructor(scene) {
+        this.scene = scene;
+        this.stars = null;
+        this.init();
+    }
+
+    // 创建星星纹理
+    createStarTexture() {
+        const canvas = document.createElement('canvas');
+        canvas.width = 32;
+        canvas.height = 32;
+        const ctx = canvas.getContext('2d');
+        const grad = ctx.createRadialGradient(16, 16, 0, 16, 16, 16);
+        grad.addColorStop(0, 'rgba(255, 255, 255, 1)');
+        grad.addColorStop(0.4, 'rgba(255, 255, 255, 0.4)');
+        grad.addColorStop(1, 'rgba(255, 255, 255, 0)');
+        ctx.fillStyle = grad;
+        ctx.fillRect(0, 0, 32, 32);
+        return new THREE.Texture(canvas);
+    }
+
+    // 初始化星空
+    init() {
+        const starTexture = this.createStarTexture();
+        starTexture.needsUpdate = true;
+
+        const starGeo = new THREE.BufferGeometry();
+        const starCount = CONFIG.scene.stars.count;
+        const posArray = [];
+        const colorArray = [];
+
+        // 颜色调色板
+        const palette = CONFIG.scene.stars.colors.map(hex => new THREE.Color(hex));
+
+        // 生成星星位置和颜色
+        for (let i = 0; i < starCount; i++) {
+            posArray.push(
+                (Math.random() - 0.5) * 500,
+                (Math.random() - 0.5) * 500,
+                (Math.random() - 0.5) * 250 - 50
+            );
+            const c = palette[Math.floor(Math.random() * palette.length)];
+            colorArray.push(c.r, c.g, c.b);
+        }
+
+        starGeo.setAttribute('position', new THREE.Float32BufferAttribute(posArray, 3));
+        starGeo.setAttribute('color', new THREE.Float32BufferAttribute(colorArray, 3));
+
+        // 自定义着色器材质以支持彩色星星
+        const starMaterial = new THREE.ShaderMaterial({
+            uniforms: {
+                pointTexture: { value: starTexture }
+            },
+            vertexShader: `
+                attribute vec3 color;
+                varying vec3 vColor;
+                void main() {
+                    vColor = color;
+                    vec4 mvPosition = modelViewMatrix * vec4(position, 1.0);
+                    gl_PointSize = ${CONFIG.scene.stars.size} * (300.0 / -mvPosition.z);
+                    gl_Position = projectionMatrix * mvPosition;
+                }
+            `,
+            fragmentShader: `
+                uniform sampler2D pointTexture;
+                varying vec3 vColor;
+                void main() {
+                    gl_FragColor = vec4(vColor, 1.0) * texture2D(pointTexture, gl_PointCoord);
+                }
+            `,
+            blending: THREE.AdditiveBlending,
+            depthWrite: false,
+            transparent: true
+        });
+
+        this.stars = new THREE.Points(starGeo, starMaterial);
+        this.scene.add(this.stars);
+    }
+
+    // 更新（预留）
+    update() {
+        // 可以在这里添加星星的动态效果，比如闪烁
+    }
+
+    // 销毁
+    dispose() {
+        if (this.stars) {
+            this.stars.geometry.dispose();
+            this.stars.material.dispose();
+            this.scene.remove(this.stars);
+        }
+    }
+}