38ed48fdba
详细说明: - 创建环保订单班完整展示页面(地表水环境质量监测方案) - HTML页面包含8个section对应8个专业Agent - CSS采用蓝绿水质主题配色,支持明暗主题切换 - JavaScript实现导航、动画、懒加载、主题切换等功能 - 环保监测数据统计动画展示 - 响应式设计适配各种屏幕尺寸 修改文件: - web_frontend/web_result/order-classes/environmental/index.html - web_frontend/web_result/order-classes/environmental/css/styles.css - web_frontend/web_result/order-classes/environmental/js/main.js 影响模块: 订单班展示系统 - 环保订单班
264 lines
8.5 KiB
JavaScript
264 lines
8.5 KiB
JavaScript
// 地表水环境质量监测方案 - 主要JavaScript逻辑
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// 页面初始化
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document.addEventListener('DOMContentLoaded', function() {
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console.log('🌊 环保订单班水质监测页面加载完成');
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// 初始化Lucide图标
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if (typeof lucide !== 'undefined') {
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lucide.createIcons();
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}
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// 初始化组件
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initNavigation();
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initAnimations();
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initLazyLoading();
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initSmoothScroll();
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updateStats();
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initThemeToggle();
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});
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// 导航功能
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function initNavigation() {
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const navItems = document.querySelectorAll('.nav-item');
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const sections = document.querySelectorAll('.section');
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// 点击导航项滚动到对应区块
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navItems.forEach((item, index) => {
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item.addEventListener('click', () => {
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// 移除所有活跃状态
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navItems.forEach(nav => nav.classList.remove('active'));
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// 添加当前活跃状态
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item.classList.add('active');
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// 滚动到对应区块
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if (sections[index]) {
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const targetSection = sections[index];
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const offsetTop = targetSection.offsetTop - 100;
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window.scrollTo({
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top: offsetTop,
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behavior: 'smooth'
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});
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}
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});
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});
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// 滚动时更新导航活跃状态
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window.addEventListener('scroll', () => {
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let current = '';
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sections.forEach((section, index) => {
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const sectionTop = section.offsetTop - 150;
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if (scrollY >= sectionTop) {
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current = index;
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}
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});
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navItems.forEach((item, index) => {
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item.classList.remove('active');
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if (index === current) {
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item.classList.add('active');
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}
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});
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});
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}
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// 动画初始化
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function initAnimations() {
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// 使用 Intersection Observer 实现滚动动画
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const observerOptions = {
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root: null,
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rootMargin: '0px',
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threshold: 0.1
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};
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const observer = new IntersectionObserver((entries) => {
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entries.forEach(entry => {
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if (entry.isIntersecting) {
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entry.target.classList.add('fade-in');
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observer.unobserve(entry.target);
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}
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});
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}, observerOptions);
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// 观察所有需要动画的元素
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const animatedElements = document.querySelectorAll('.card, .expert-intro');
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animatedElements.forEach(el => {
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el.style.opacity = '0';
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observer.observe(el);
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});
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}
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// 图片懒加载
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function initLazyLoading() {
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const images = document.querySelectorAll('img[data-src]');
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const imageObserver = new IntersectionObserver((entries, observer) => {
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entries.forEach(entry => {
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if (entry.isIntersecting) {
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const img = entry.target;
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const src = img.getAttribute('data-src');
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// 创建新图片对象来预加载
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const tempImg = new Image();
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tempImg.onload = function() {
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img.src = src;
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img.classList.add('loaded');
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};
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tempImg.onerror = function() {
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// 如果图片加载失败，使用占位图
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img.src = 'data:image/svg+xml,%3Csvg xmlns="http://www.w3.org/2000/svg" width="400" height="300" viewBox="0 0 400 300"%3E%3Crect width="400" height="300" fill="%23e0f2fe"/%3E%3Ctext x="50%25" y="50%25" dominant-baseline="middle" text-anchor="middle" font-family="system-ui" font-size="20" fill="%230284c7"%3E图片加载中%3C/text%3E%3C/svg%3E';
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img.classList.add('error');
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};
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tempImg.src = src;
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img.removeAttribute('data-src');
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observer.unobserve(img);
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}
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});
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});
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images.forEach(img => {
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imageObserver.observe(img);
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});
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}
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// 平滑滚动
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function initSmoothScroll() {
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// 为所有锚点链接添加平滑滚动
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document.querySelectorAll('a[href^="#"]').forEach(anchor => {
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anchor.addEventListener('click', function (e) {
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e.preventDefault();
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const targetId = this.getAttribute('href');
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if (targetId === '#') return;
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const target = document.querySelector(targetId);
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if (target) {
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target.scrollIntoView({
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behavior: 'smooth',
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block: 'start'
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});
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}
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});
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});
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}
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// 更新统计数据 - 环保监测数据
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function updateStats() {
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// 动画数字增长效果 - 环保水质监测相关数据
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const stats = [
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{ selector: '.monitoring-points', value: 144, suffix: '个' },
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{ selector: '.quality-indicators', value: 26, suffix: '项' },
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{ selector: '.sampling-frequency', value: 12, suffix: '次/年' },
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{ selector: '.data-accuracy', value: 95, suffix: '%' },
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{ selector: '.quality-control', value: 10, suffix: '%' },
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{ selector: '.project-budget', value: 45, suffix: '万元' },
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{ selector: '.team-members', value: 10, suffix: '人' },
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{ selector: '.monitoring-cycle', value: 12, suffix: '个月' }
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];
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stats.forEach(stat => {
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const element = document.querySelector(stat.selector);
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if (element) {
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animateValue(element, 0, stat.value, 2000, stat.suffix);
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}
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});
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}
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// 数字动画函数
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function animateValue(element, start, end, duration, suffix = '') {
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const startTime = performance.now();
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function update(currentTime) {
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const elapsed = currentTime - startTime;
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const progress = Math.min(elapsed / duration, 1);
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// 使用缓动函数
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const easeOutQuad = progress * (2 - progress);
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const current = Math.floor(start + (end - start) * easeOutQuad);
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element.textContent = current + suffix;
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if (progress < 1) {
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requestAnimationFrame(update);
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}
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}
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requestAnimationFrame(update);
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}
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// 错误处理
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window.addEventListener('error', function(e) {
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if (e.target.tagName === 'IMG') {
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console.warn('图片加载失败:', e.target.src);
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e.target.src = 'data:image/svg+xml,%3Csvg xmlns="http://www.w3.org/2000/svg" width="400" height="300" viewBox="0 0 400 300"%3E%3Crect width="400" height="300" fill="%23e0f2fe"/%3E%3Ctext x="50%25" y="50%25" dominant-baseline="middle" text-anchor="middle" font-family="system-ui" font-size="20" fill="%230284c7"%3E图片暂时无法显示%3C/text%3E%3C/svg%3E';
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e.target.classList.add('error');
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}
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}, true);
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// 移动端优化
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if ('ontouchstart' in window) {
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document.body.classList.add('touch-device');
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// 移动端点击优化
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let touchStartTime;
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document.addEventListener('touchstart', () => {
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touchStartTime = Date.now();
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});
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document.addEventListener('touchend', (e) => {
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const touchEndTime = Date.now();
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if (touchEndTime - touchStartTime < 200) {
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// 快速点击
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e.preventDefault();
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}
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});
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}
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// 性能监控
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if (window.performance && window.performance.timing) {
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window.addEventListener('load', () => {
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setTimeout(() => {
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const timing = window.performance.timing;
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const loadTime = timing.loadEventEnd - timing.navigationStart;
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console.log(`页面加载时间: ${loadTime}ms`);
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// 如果加载时间过长，提示用户
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if (loadTime > 3000) {
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console.warn('页面加载时间较长，可能需要优化');
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}
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}, 0);
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});
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}
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// 主题切换功能
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function initThemeToggle() {
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const themeToggleBtn = document.getElementById('themeToggleBtn');
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// 从localStorage读取用户的主题偏好
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const savedTheme = localStorage.getItem('theme');
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// 如果没有保存的偏好，默认使用暗色主题
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if (savedTheme === 'dark' || savedTheme === null) {
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document.body.classList.add('dark-theme');
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}
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// 点击切换主题
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if (themeToggleBtn) {
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themeToggleBtn.addEventListener('click', () => {
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document.body.classList.toggle('dark-theme');
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// 保存用户偏好
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if (document.body.classList.contains('dark-theme')) {
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localStorage.setItem('theme', 'dark');
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} else {
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localStorage.setItem('theme', 'light');
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}
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// 重新初始化图标以确保正确显示
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if (typeof lucide !== 'undefined') {
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lucide.createIcons();
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}
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});
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}
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}
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