docs(database): 更新数据库设计规范和核心数据表结构

- 新增数据库基础规范、API映射规范、安全规范等详细设计要求- 增加读写分离、分库分表、数据生命周期管理等策略说明
- 新建核心业务表结构，包括用户表、贷款申请表、保险申请表等
- 优化索引设计，提高查询效率

frontend/website/js/main.js

@@ -1,64 +1,47 @@
-// 锡林郭勒盟安格斯牛平台官网JavaScript
-
+// 导航栏滚动效果
 document.addEventListener('DOMContentLoaded', function() {
-    // 平滑滚动效果
-    const links = document.querySelectorAll('a[href^="#"]');
-    
-    links.forEach(link => {
-        link.addEventListener('click', function(e) {
-            e.preventDefault();
-            
-            const targetId = this.getAttribute('href');
-            const targetElement = document.querySelector(targetId);
-            
-            if (targetElement) {
-                window.scrollTo({
-                    top: targetElement.offsetTop - 70,
-                    behavior: 'smooth'
-                });
-            }
+  const navbar = document.querySelector('.navbar');
+  
+  window.addEventListener('scroll', function() {
+    if (window.scrollY > 50) {
+      navbar.classList.add('scrolled');
+    } else {
+      navbar.classList.remove('scrolled');
+    }
+  });
+  
+  // 平滑滚动
+  document.querySelectorAll('a[href^="#"]').forEach(anchor => {
+    anchor.addEventListener('click', function(e) {
+      e.preventDefault();
+      
+      const targetId = this.getAttribute('href');
+      const targetElement = document.querySelector(targetId);
+      
+      if (targetElement) {
+        window.scrollTo({
+          top: targetElement.offsetTop - 70,
+          behavior: 'smooth'
         });
+      }
     });
+  });
+  
+  // 新闻轮播
+  const newsItems = document.querySelectorAll('#news .card');
+  if (newsItems.length > 0) {
+    let currentIndex = 0;
     
-    // 简单的移动端菜单切换
-    const mobileMenuButton = document.createElement('button');
-    mobileMenuButton.classList.add('mobile-menu-toggle');
-    mobileMenuButton.innerHTML = '☰';
-    mobileMenuButton.setAttribute('aria-label', '切换菜单');
-    
-    const header = document.querySelector('header');
-    const nav = document.querySelector('nav');
-    
-    if (header && nav) {
-        header.insertBefore(mobileMenuButton, nav);
-        
-        mobileMenuButton.addEventListener('click', function() {
-            nav.classList.toggle('active');
-        });
+    function showNextNews() {
+      newsItems[currentIndex].classList.remove('active');
+      currentIndex = (currentIndex + 1) % newsItems.length;
+      newsItems[currentIndex].classList.add('active');
     }
     
-    // 添加一些简单的交互效果
-    const featureCards = document.querySelectorAll('.feature-card');
+    // 初始化第一个新闻项
+    newsItems[0].classList.add('active');
     
-    featureCards.forEach(card => {
-        card.addEventListener('mouseenter', function() {
-            this.style.boxShadow = '0 5px 15px rgba(0, 0, 0, 0.2)';
-        });
-        
-        card.addEventListener('mouseleave', function() {
-            this.style.boxShadow = '0 2px 10px rgba(0, 0, 0, 0.1)';
-        });
-    });
-});
-
-// 简单的表单验证示例
-function validateForm(form) {
-    // 这里可以添加表单验证逻辑
-    console.log('表单验证');
-    return true;
-}
-
-// 页面加载完成后的初始化
-window.addEventListener('load', function() {
-    console.log('锡林郭勒盟安格斯牛平台官网加载完成');
+    // 每5秒自动轮播
+    setInterval(showNextNews, 5000);
+  }
 });