// +
    document.addEventListener("DOMContentLoaded", function () {
        const numberModules1 = document.querySelectorAll('.number-module1');
        const observer = new IntersectionObserver((entries) => {
            entries.forEach(entry => {
                if (entry.isIntersecting) {
                    const module = entry.target;
                    const start = parseInt(module.getAttribute('data-start'), 10);
                    const end = parseInt(module.getAttribute('data-end'), 10);
                    const duration = parseInt(module.getAttribute('data-duration'), 10);
                    animateNumber1(module, start, end, duration, '%');
                    // 如果你只想触发一次动画,可以取消观察  
                    observer.unobserve(module);
                }
            });
        });
        numberModules1.forEach(module => observer.observe(module));
    });
    function animateNumber1(element, start, end, duration, suffix = '%') {
        let startTime = null;
        const animation1 = function (currentTime) {
            if (startTime === null) startTime = currentTime;
            const progress = Math.min((currentTime - startTime) / duration, 1);
            const value = Math.floor(progress * (end - start) + start);
            element.textContent = value.toString();
            if (progress < 1) {
                requestAnimationFrame(animation1);
            } else {
                // 动画结束时添加 w+
                element.textContent += suffix;
            }
        };
        requestAnimationFrame(animation1);
    }
    // +
    document.addEventListener("DOMContentLoaded", function () {
        const numberModules2 = document.querySelectorAll('.number-module2');
        const observer = new IntersectionObserver((entries) => {
            entries.forEach(entry => {
                if (entry.isIntersecting) {
                    const module = entry.target;
                    const start = parseInt(module.getAttribute('data-start'), 10);
                    const end = parseInt(module.getAttribute('data-end'), 10);
                    const duration = parseInt(module.getAttribute('data-duration'), 10);
                    animateNumber1(module, start, end, duration, '+');
                    // 如果你只想触发一次动画,可以取消观察  
                    observer.unobserve(module);
                }
            });
        });
        numberModules2.forEach(module => observer.observe(module));
    });
    function animateNumber2(element, start, end, duration, suffix = '+') {
        let startTime = null;
        const animation2 = function (currentTime) {
            if (startTime === null) startTime = currentTime;
            const progress = Math.min((currentTime - startTime) / duration, 1);
            const value = Math.floor(progress * (end - start) + start);
            element.textContent = value.toString();
            if (progress < 1) {
                requestAnimationFrame(animation2);
            } else {
                // 动画结束时添加 w+
                element.textContent += suffix;
            }
        };
        requestAnimationFrame(animation2);
    }
    // +
    document.addEventListener("DOMContentLoaded", function () {
        const numberModules3 = document.querySelectorAll('.number-module3');
        const observer = new IntersectionObserver((entries) => {
            entries.forEach(entry => {
                if (entry.isIntersecting) {
                    const module = entry.target;
                    const start = parseInt(module.getAttribute('data-start'), 10);
                    const end = parseInt(module.getAttribute('data-end'), 10);
                    const duration = parseInt(module.getAttribute('data-duration'), 10);
                    animateNumber3(module, start, end, duration, '+');
                    // 如果你只想触发一次动画,可以取消观察  
                    observer.unobserve(module);
                }
            });
        });
        numberModules3.forEach(module => observer.observe(module));
    });
    function animateNumber3(element, start, end, duration, suffix = '+') {
        let startTime = null;
        const animation3 = function (currentTime) {
            if (startTime === null) startTime = currentTime;
            const progress = Math.min((currentTime - startTime) / duration, 1);
            const value = Math.floor(progress * (end - start) + start);
            element.textContent = value.toString();
            if (progress < 1) {
                requestAnimationFrame(animation3);
            } else {
                // 动画结束时添加 /3
                element.textContent += suffix;
            }
        };
        requestAnimationFrame(animation3);
    }
    // +
    document.addEventListener("DOMContentLoaded", function () {
        const numberModules0 = document.querySelectorAll('.number-module0');
        const observer = new IntersectionObserver((entries) => {
            entries.forEach(entry => {
                if (entry.isIntersecting) {
                    const module = entry.target;
                    const start = parseInt(module.getAttribute('data-start'), 10);
                    const end = parseInt(module.getAttribute('data-end'), 10);
                    const duration = parseInt(module.getAttribute('data-duration'), 10);
                    animateNumber0(module, start, end, duration, 'million pieces');
                    // 如果你只想触发一次动画,可以取消观察  
                    observer.unobserve(module);
                }
            });
        });
        numberModules0.forEach(module => observer.observe(module));
    });
    function animateNumber0(element, start, end, duration, suffix = 'million pieces') {
        let startTime = null;
        const animation0 = function (currentTime) {
            if (startTime === null) startTime = currentTime;
            const progress = Math.min((currentTime - startTime) / duration, 1);
            const value = Math.floor(progress * (end - start) + start);
            element.textContent = value.toString();
            if (progress < 1) {
                requestAnimationFrame(animation0);
            } else {
                // 动画结束时添加 
                element.textContent += suffix;
            }
        };
        requestAnimationFrame(animation0);
    }