diff --git a/main.js b/main.js
new file mode 100644
index 0000000..c3a8b9e
--- /dev/null
+++ b/main.js
@@ -0,0 +1,149 @@
+// ========================================
+// 导航栏滚动效果
+// ========================================
+const navbar = document.getElementById('navbar');
+let lastScroll = 0;
+
+window.addEventListener('scroll', () => {
+    const currentScroll = window.pageYOffset;
+    
+    // 添加滚动时的阴影效果
+    if (currentScroll > 50) {
+        navbar.style.boxShadow = '0 4px 20px rgba(0, 0, 0, 0.1)';
+    } else {
+        navbar.style.boxShadow = '0 2px 10px rgba(0, 0, 0, 0.05)';
+    }
+    
+    lastScroll = currentScroll;
+});
+
+// ========================================
+// 移动端汉堡菜单
+// ========================================
+const hamburger = document.getElementById('hamburger');
+const navMenu = document.getElementById('navMenu');
+const navLinks = document.querySelectorAll('.nav-link');
+
+hamburger.addEventListener('click', () => {
+    hamburger.classList.toggle('active');
+    navMenu.classList.toggle('active');
+});
+
+// 点击导航链接后关闭菜单
+navLinks.forEach(link => {
+    link.addEventListener('click', () => {
+        hamburger.classList.remove('active');
+        navMenu.classList.remove('active');
+    });
+});
+
+// ========================================
+// 平滑滚动到锚点
+// ========================================
+document.querySelectorAll('a[href^="#"]').forEach(anchor => {
+    anchor.addEventListener('click', function (e) {
+        e.preventDefault();
+        const target = document.querySelector(this.getAttribute('href'));
+        
+        if (target) {
+            const offsetTop = target.offsetTop - 80; // 减去导航栏高度
+            
+            window.scrollTo({
+                top: offsetTop,
+                behavior: 'smooth'
+            });
+        }
+    });
+});
+
+// ========================================
+// 滚动时导航链接高亮
+// ========================================
+const sections = document.querySelectorAll('section[id]');
+
+function highlightNavigation() {
+    const scrollY = window.pageYOffset;
+    
+    sections.forEach(section => {
+        const sectionHeight = section.offsetHeight;
+        const sectionTop = section.offsetTop - 100;
+        const sectionId = section.getAttribute('id');
+        const navLink = document.querySelector(`.nav-link[href="#${sectionId}"]`);
+        
+        if (navLink) {
+            if (scrollY > sectionTop && scrollY <= sectionTop + sectionHeight) {
+                navLink.classList.add('active');
+            } else {
+                navLink.classList.remove('active');
+            }
+        }
+    });
+}
+
+window.addEventListener('scroll', highlightNavigation);
+
+// ========================================
+// 卡片进入视口时的动画效果
+// ========================================
+const observerOptions = {
+    threshold: 0.1,
+    rootMargin: '0px 0px -50px 0px'
+};
+
+const observer = new IntersectionObserver((entries) => {
+    entries.forEach(entry => {
+        if (entry.isIntersecting) {
+            entry.target.style.opacity = '1';
+            entry.target.style.transform = 'translateY(0)';
+        }
+    });
+}, observerOptions);
+
+// 观察所有卡片元素
+document.querySelectorAll('.card').forEach(card => {
+    card.style.opacity = '0';
+    card.style.transform = 'translateY(30px)';
+    card.style.transition = 'opacity 0.6s ease-out, transform 0.6s ease-out';
+    observer.observe(card);
+});
+
+// ========================================
+// 页面加载完成后的初始化
+// ========================================
+window.addEventListener('load', () => {
+    // 添加页面加载完成的类，用于触发初始动画
+    document.body.classList.add('loaded');
+    
+    // 立即执行一次高亮检查
+    highlightNavigation();
+});
+
+// ========================================
+// 图片懒加载（可选优化）
+// ========================================
+if ('IntersectionObserver' in window) {
+    const imageObserver = new IntersectionObserver((entries, observer) => {
+        entries.forEach(entry => {
+            if (entry.isIntersecting) {
+                const img = entry.target;
+                if (img.dataset.src) {
+                    img.src = img.dataset.src;
+                    img.removeAttribute('data-src');
+                    observer.unobserve(img);
+                }
+            }
+        });
+    });
+    
+    // 可以将来为实际图片添加 data-src 属性实现懒加载
+}
+
+// ========================================
+// 响应式处理 - 窗口大小改变时重置菜单
+// ========================================
+window.addEventListener('resize', () => {
+    if (window.innerWidth > 768) {
+        hamburger.classList.remove('active');
+        navMenu.classList.remove('active');
+    }
+});