Guangzhou Mingzan Intelligent Prop Co., Ltd.

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document.addEventListener('DOMContentLoaded', function() { // 定义全局偏移量 const companyTitleOffset = -60; // 小屏幕下的偏移量 const navigationOffset = -160; // 大屏幕下的偏移量 // 获取所有的标题和内容元素 const toggleJumpButton = document.querySelector('.toggleJump'); const jumpToButton = document.querySelector('.jumpTo'); const sections = document.querySelectorAll('.section'); let isExpanded = true; // 初始状态为展开 // 所有函数定义放在这里 function expandSections() { sections.forEach(section => { const content = section.querySelector('.section-content'); content.style.display = 'block'; }); } function collapseSections() { sections.forEach(section => { const content = section.querySelector('.section-content'); content.style.display = 'none'; }); } function scrollToTop() { document.documentElement.scrollTo({ top: 0, behavior: 'smooth' }); } function scrollToFirstSection() { // 获取第一个 section 的位置 const firstSection = sections[0]; const sectionTop = firstSection.offsetTop; const additionalOffset = getAdditionalOffset(); // 平滑滚动到第一个 section window.scrollTo({ top: sectionTop + additionalOffset, behavior: 'smooth' }); } function getAdditionalOffset() { // 根据屏幕宽度决定偏移量 return window.matchMedia("(min-width: 768px)").matches ? navigationOffset : companyTitleOffset; } function expandTargetSection(targetSection) { // 先关闭所有 section 的内容 collapseSections(); // 展开目标 section 的内容 const targetContent = targetSection.querySelector('.section-content'); targetContent.style.display = 'block'; } function scrollToTargetSectionTop(targetSection) { // 计算目标 section 的顶部位置 const sectionTop = targetSection.offsetTop - getAdditionalOffset(); // 平滑滚动到目标位置 window.scrollTo({ top: sectionTop, behavior: 'smooth' }); } function handleHashScroll() { // 获取 URL 中的哈希值 const hash = window.location.hash; if (hash) { // 查找与哈希值匹配的元素 const element = document.querySelector(hash); if (element) { // 获取目标 section const targetSection = element.closest('.section'); if (targetSection) { // 展开目标 section 并关闭其他 section expandTargetSection(targetSection); // 平滑滚动到目标位置 scrollToTargetSectionTop(targetSection); } } } } // 为每个标题添加点击事件监听器 const sectionTitles = document.querySelectorAll('.section-title'); sectionTitles.forEach(title => { title.addEventListener('click', function() { const sectionId = this.dataset.section; const content = document.querySelector(`#${sectionId} .section-content`); const currentScrollTop = window.pageYOffset; // 切换展开/折叠状态 if (content.style.display === 'none') { content.style.display = 'block'; // 阻止自动滚动 window.scrollTo({ top: currentScrollTop, behavior: 'auto' }); } else { content.style.display = 'none'; // 阻止自动滚动 window.scrollTo({ top: currentScrollTop, behavior: 'auto' }); } }); title.addEventListener('mouseover', function() { this.classList.add('hovered'); }); title.addEventListener('mouseout', function() { this.classList.remove('hovered'); }); }); // 处理 jumpToButton 按钮的点击事件 jumpToButton.addEventListener('click', function() { scrollToTop(); }); // 处理 toggleJump 按钮的点击事件 toggleJumpButton.addEventListener('click', function() { if (isExpanded) { // 先关闭所有 section 的内容 collapseSections(); scrollToFirstSection(); isExpanded = false; toggleJumpButton.textContent = '+'; } else { expandSections(); scrollToFirstSection(); isExpanded = true; toggleJumpButton.textContent = '-'; } }); // 立即处理 URL 中的哈希值 handleHashScroll(); // 当哈希值变化时重新处理 window.addEventListener('hashchange', handleHashScroll); });