document.addEventListener('DOMContentLoaded', function() {
    // 滚动动画逻辑
    const animatedElements = document.querySelectorAll('.scroll-animate');
    const observer = new IntersectionObserver((entries, observer) => {
        entries.forEach(entry => {
            if (entry.isIntersecting) {
                entry.target.classList.add('is-visible');
                observer.unobserve(entry.target);
            }
        });
    }, {
        threshold: 0.1
    });
    animatedElements.forEach(el => {
        observer.observe(el);
    });

    // 导航栏逻辑
    const navbar = document.getElementById('navbar');
    const menuToggle = document.getElementById('menu-toggle');
    const mobileMenu = document.getElementById('mobile-menu');

    window.addEventListener('scroll', () => {
        if (window.scrollY > 50) {
            navbar.classList.remove('bg-white/80', 'backdrop-blur-lg', 'shadow-sm');
            navbar.classList.add('bg-white', 'shadow-md');
        } else {
            navbar.classList.remove('bg-white', 'shadow-md');
            navbar.classList.add('bg-white/80', 'backdrop-blur-lg', 'shadow-sm');
        }
    });

    menuToggle.addEventListener('click', () => {
        mobileMenu.classList.toggle('hidden');
        menuToggle.querySelector('i').classList.toggle('fa-bars');
        menuToggle.querySelector('i').classList.toggle('fa-close');
    });

    // 轮播图逻辑
    const slides = document.querySelectorAll('.hero-carousel-slide');
    const dots = document.querySelectorAll('.hero-carousel-dot');
    let currentSlide = 0;
    const intervalTime = 5000;

    function updateCarousel() {
        slides.forEach((slide, index) => {
            slide.classList.remove('opacity-100');
            slide.classList.add('opacity-0');
            dots[index].classList.remove('bg-white');
            dots[index].classList.add('bg-white/50');
        });

        slides[currentSlide].classList.remove('opacity-0');
        slides[currentSlide].classList.add('opacity-100');
        dots[currentSlide].classList.remove('bg-white/50');
        dots[currentSlide].classList.add('bg-white');

        const img = slides[currentSlide].querySelector('img');
        document.querySelectorAll('.hero-carousel-slide img').forEach(i => i.classList.remove('ken-burns-active'));
        img.classList.add('ken-burns-active');
    }

    function nextSlide() {
        currentSlide = (currentSlide + 1) % slides.length;
        updateCarousel();
    }

    let carouselInterval = setInterval(nextSlide, intervalTime);
    updateCarousel(); // 初始化

    dots.forEach((dot, index) => {
        dot.addEventListener('click', () => {
            clearInterval(carouselInterval);
            currentSlide = index;
            updateCarousel();
            carouselInterval = setInterval(nextSlide, intervalTime);
        });
    });

    // 模态框逻辑
    const modal = document.getElementById('solution-modal');
    const modalTitle = document.getElementById('modal-title');
    const modalContent = document.getElementById('modal-content');
    const modalCloseBtn = document.getElementById('modal-close-btn');
    const saasCards = document.querySelectorAll('.saas-card');

    saasCards.forEach(card => {
        card.addEventListener('click', (e) => {
            e.preventDefault();

            const title = card.dataset.title;
            const content = card.dataset.content;

            modalTitle.textContent = title;
            modalContent.innerHTML = content;

            modal.classList.remove('hidden');
            modal.classList.add('open');
            document.body.style.overflow = 'hidden';
        });
    });

    function closeModal() {
        modal.classList.add('hidden');
        modal.classList.remove('open');
        document.body.style.overflow = '';
    }

    modalCloseBtn.addEventListener('click', closeModal);
    modal.addEventListener('click', (e) => {
        if (e.target === modal) {
            closeModal();
        }
    });

    // 监听滑动，隐藏政策引导箭头
    const pContainer = document.getElementById('policy-container');
    const pHint = document.getElementById('policy-hint');

    if (pContainer && pHint) {
        pContainer.addEventListener('scroll', function() {
            if (pContainer.scrollLeft > 25) {
                pHint.style.opacity = '0';
                setTimeout(() => {
                    pHint.style.display = 'none';
                }, 500);
            }
        }, {
            passive: true
        });
    }
});