$(document).ready(function() {
    // 页面滚动动画
    function checkVisibility() {
        $('.page').each(function(index) {
            const elementTop = $(this).offset().top;
            const elementBottom = elementTop + $(this).outerHeight();
            const viewportTop = $(window).scrollTop();
            const viewportBottom = viewportTop + $(window).height();
            
            // 当元素进入视口时添加visible类
            if (elementBottom > viewportTop && elementTop < viewportBottom) {
                $(this).addClass('visible');
                
                // 更新滚动指示器
                $('.scroll-dot').removeClass('active');
                $('.scroll-dot[data-page="' + (index + 1) + '"]').addClass('active');
            }
        });
    }
    
    // 初始检查
    checkVisibility();
    
    // 滚动时检查
    $(window).scroll(function() {
        checkVisibility();
    });
    
    // 平滑滚动
    $('nav a, .scroll-dot').on('click', function(e) {
        e.preventDefault();
        
        let targetId;
        if ($(this).hasClass('scroll-dot')) {
            const pageNum = $(this).data('page');
            targetId = '.page-' + pageNum;
        } else {
            targetId = $(this).attr('href');
        }
        
        if (targetId === '#') {
            $('html, body').animate({
                scrollTop: 0
            }, 800);
        } else {
            const targetOffset = $(targetId).offset().top;
            $('html, body').animate({
                scrollTop: targetOffset
            }, 800);
        }
        
        // 更新活动链接
        $('nav a').removeClass('active');
        $(this).addClass('active');
    });
    
    // 云朵随机动画
    $('.cloud').each(function() {
        const randomDuration = Math.floor(Math.random() * 20) + 30; // 30-50秒
        const randomDelay = Math.floor(Math.random() * 10); // 0-10秒
        
        $(this).css({
            'animation-duration': randomDuration + 's',
            'animation-delay': randomDelay + 's'
        });
    });
    
    // 模块卡片动画
    $('.module').hover(
        function() {
            $(this).find('.module-icon').css('transform', 'scale(1.2) rotate(10deg)');
        },
        function() {
            $(this).find('.module-icon').css('transform', 'scale(1) rotate(0)');
        }
    );
    
    // 首页自动显示
    $('.page-1').addClass('visible');
    
    // 添加鼠标跟随效果
    $(document).mousemove(function(e) {
        const mouseX = e.pageX;
        const mouseY = e.pageY;
        
        // 装饰元素跟随鼠标轻微移动
        $('.star-decoration').css({
            'transform': `translate(${(mouseX - $(window).width()/2) / 50}px, ${(mouseY - $(window).height()/2) / 50}px)`
        });
        
        // 云朵跟随鼠标轻微移动
        $('.cloud').each(function(index) {
            const factor = (index + 1) * 20;
            $(this).css({
                'margin-left': `${(mouseX - $(window).width()/2) / factor}px`,
                'margin-top': `${(mouseY - $(window).height()/2) / factor}px`
            });
        });
        
        // 浮动元素跟随鼠标
        $('.floating-element').each(function(index) {
            const factor = (index + 1) * 15;
            $(this).css({
                'transform': `translate(${(mouseX - $(window).width()/2) / factor}px, ${(mouseY - $(window).height()/2) / factor}px)`
            });
        });
    });
    
    // 添加滚动进度指示器
    $('<div class="scroll-progress"></div>').appendTo('body');
    $(window).scroll(function() {
        const scrollTop = $(window).scrollTop();
        const docHeight = $(document).height();
        const winHeight = $(window).height();
        const scrollPercent = (scrollTop) / (docHeight - winHeight) * 100;
        $('.scroll-progress').css('width', scrollPercent + '%');
    });
    
    // 特性图片动画
    $('.feature-image').each(function(index) {
        $(this).css({
            'animation-delay': (index * 0.2) + 's'
        });
    });
    
    // 学员反馈轮播
    let testimonialIndex = 0;
    const testimonials = $('.testimonial');
    
    function showNextTestimonial() {
        testimonials.removeClass('active');
        testimonialIndex = (testimonialIndex + 1) % testimonials.length;
        testimonials.eq(testimonialIndex).addClass('active');
    }
    
    // 初始显示第一个
    testimonials.eq(0).addClass('active');
    
    // 每5秒切换一次
    setInterval(showNextTestimonial, 5000);
    
    // 添加CSS动画类
    setTimeout(function() {
        $('.hero-section h1').addClass('animate__animated animate__fadeInDown');
        $('.hero-section p').addClass('animate__animated animate__fadeInUp');
        $('.hero-buttons .btn').addClass('animate__animated animate__bounceIn');
    }, 500);
    
    // 全屏滚动增强 - 优化版本
    let isScrolling = false;
    let isbottom = false;
    let currentPage = 0;
    const totalPages = $('.page').length;
    
    // 初始化页面
    $('.page').eq(0).addClass('visible');
    
    // 优化的鼠标滚轮事件处理
    // $(window).on('wheel', function(e) {
    //     if(e.originalEvent.deltaY > 0 &&currentPage==totalPages-1){
    //         console.log("123");
    //         isbottom=true
    //     }else{
    //     e.preventDefault(); // 阻止默认滚动行为
        
    //     if (!isScrolling) {
    //         isScrolling = true;
            
    //         // 确定滚动方向
    //         if (e.originalEvent.deltaY > 0) {
    //             // 向下滚动
    //             if (currentPage < totalPages - 1) {
    //                 currentPage++;
    //             }
    //         } else {
    //             if(isbottom){
    //                  isbottom=false
    //                 currentPage=totalPages-1
    //             }else{
    //                 // 向上滚动
    //             if (currentPage > 0) {
    //                 currentPage--;
    //             }
    //             }
                
    //         }
            
    //         // 滚动到目标页面 - 使用更快的动画速度
    //         $('html, body').animate({
    //             scrollTop: $('.page').eq(currentPage).offset().top
    //         }, 500, 'easeOutQuint', function() {
    //             isScrolling = false;
    //         });
            
    //         // 更新滚动指示器
    //         $('.scroll-dot').removeClass('active');
    //         $('.scroll-dot[data-page="' + (currentPage + 1) + '"]').addClass('active');
    //     }
    //     }
        
    // });
    
    // 添加jQuery easing插件支持更平滑的动画
    $.extend($.easing, {
        easeOutQuint: function (x, t, b, c, d) {
            return c * ((t = t / d - 1) * t * t * t * t + 1) + b;
        }
    });
    
    // 点击滚动指示器
    $('.scroll-dot').on('click', function() {
        if (!isScrolling) {
            isScrolling = true;
            
            const targetPage = $(this).data('page') - 1;
            currentPage = targetPage;
            
            // 滚动到目标页面
            $('html, body').animate({
                scrollTop: $('.page').eq(targetPage).offset().top
            }, 800, function() {
                isScrolling = false;
            });
            
            // 更新滚动指示器
            $('.scroll-dot').removeClass('active');
            $(this).addClass('active');
        }
    });
    
    // 键盘上下键控制
    $(document).keydown(function(e) {
        if (!isScrolling) {
            if (e.keyCode === 40) { // 下箭头
                if (currentPage < totalPages - 1) {
                    isScrolling = true;
                    currentPage++;
                    
                    $('html, body').animate({
                        scrollTop: $('.page').eq(currentPage).offset().top
                    }, 800, function() {
                        isScrolling = false;
                    });
                    
                    $('.scroll-dot').removeClass('active');
                    $('.scroll-dot[data-page="' + (currentPage + 1) + '"]').addClass('active');
                }
                return false;
            } else if (e.keyCode === 38) { // 上箭头
                if (currentPage > 0) {
                    isScrolling = true;
                    currentPage--;
                    
                    $('html, body').animate({
                        scrollTop: $('.page').eq(currentPage).offset().top
                    }, 800, function() {
                        isScrolling = false;
                    });
                    
                    $('.scroll-dot').removeClass('active');
                    $('.scroll-dot[data-page="' + (currentPage + 1) + '"]').addClass('active');
                }
                return false;
            }
        }
    });
    
    // 触摸屏滑动支持
    let touchStartY = 0;
    let touchEndY = 0;
    
    $(document).on('touchstart', function(e) {
        touchStartY = e.originalEvent.touches[0].clientY;
    });
    
    $(document).on('touchend', function(e) {
        touchEndY = e.originalEvent.changedTouches[0].clientY;
        handleSwipe();
    });
    
    function handleSwipe() {
        if (!isScrolling) {
            if (touchStartY - touchEndY > 50) { // 向上滑动
                if (currentPage < totalPages - 1) {
                    isScrolling = true;
                    currentPage++;
                    
                    $('html, body').animate({
                        scrollTop: $('.page').eq(currentPage).offset().top
                    }, 800, function() {
                        isScrolling = false;
                    });
                    
                    $('.scroll-dot').removeClass('active');
                    $('.scroll-dot[data-page="' + (currentPage + 1) + '"]').addClass('active');
                }
            } else if (touchEndY - touchStartY > 50) { // 向下滑动
                if (currentPage > 0) {
                    isScrolling = true;
                    currentPage--;
                    
                    $('html, body').animate({
                        scrollTop: $('.page').eq(currentPage).offset().top
                    }, 800, function() {
                        isScrolling = false;
                    });
                    
                    $('.scroll-dot').removeClass('active');
                    $('.scroll-dot[data-page="' + (currentPage + 1) + '"]').addClass('active');
                }
            }
        }
    }
    
    // 初始化滚动指示器
    function updateScrollIndicator() {
        const scrollTop = $(window).scrollTop();
        $('.page').each(function(index) {
            const offsetTop = $(this).offset().top;
            const height = $(this).outerHeight();
            
            if (scrollTop >= offsetTop - 100 && scrollTop < offsetTop + height - 100) {
                currentPage = index;
                $('.scroll-dot').removeClass('active');
                $('.scroll-dot[data-page="' + (index + 1) + '"]').addClass('active');
            }
        });
    }
    
    // 滚动时更新指示器
    $(window).scroll(function() {
        if (!isScrolling) {
            updateScrollIndicator();
        }
    });
    
    // 初始化
    updateScrollIndicator();
});
//首页轮播
const carousel = document.getElementById('carousel');
    const carouselItems = document.querySelectorAll('.carousel-item');
    const indicators = document.querySelectorAll('.carousel-indicator');
    const prevBtn = document.getElementById('prev-btn');
    const nextBtn = document.getElementById('next-btn');
    let currentIndex = 0;
    let carouselInterval;
    
    // 显示当前轮播项
    function showSlide(index) {
      // 隐藏所有轮播项
      carouselItems.forEach(item => {
        item.classList.remove('active');
      });
      
      // 重置所有指示器
      indicators.forEach(indicator => {
        indicator.classList.remove('active');
      });
      
      // 显示当前轮播项
      carouselItems[index].classList.add('active');
      
      // 激活当前指示器
      indicators[index].classList.add('active');
      
      currentIndex = index;
    }
    
    // 下一张轮播图
    function nextSlide() {
      let newIndex = (currentIndex + 1) % carouselItems.length;
      showSlide(newIndex);
    }
    
    // 上一张轮播图
    function prevSlide() {
      let newIndex = (currentIndex - 1 + carouselItems.length) % carouselItems.length;
      showSlide(newIndex);
    }
    
    // 点击指示器切换轮播图
    indicators.forEach((indicator, index) => {
      indicator.addEventListener('click', () => {
        showSlide(index);
        resetInterval();
      });
    });
    
    // 点击按钮切换轮播图
    prevBtn.addEventListener('click', () => {
      prevSlide();
      resetInterval();
    });
    
    nextBtn.addEventListener('click', () => {
      nextSlide();
      resetInterval();
    });
    
    // 自动播放轮播图
    function startInterval() {
      carouselInterval = setInterval(nextSlide, 5000);
    }
    
    // 重置自动播放计时器
    function resetInterval() {
      clearInterval(carouselInterval);
      startInterval();
    }
    
    // 初始化轮播图
    showSlide(0);
    startInterval();
    
    // 鼠标悬停暂停轮播
    carousel.addEventListener('mouseenter', () => {
      clearInterval(carouselInterval);
    });
    
    // 鼠标离开继续轮播
    carousel.addEventListener('mouseleave', () => {
      resetInterval();
    });