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<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>AI Navigator - Your Gateway to Artificial Intelligence</title>
    <script src="https://cdn.tailwindcss.com"></script>
    <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.4.0/css/all.min.css">
    <style>
        @import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600;700&display=swap');
        
        body {
            font-family: 'Poppins', sans-serif;
            background-color: #f8fafc;
        }
        
        .gradient-bg {
            background: linear-gradient(135deg, #6e8efb, #a777e3);
        }
        
        .card-hover {
            transition: all 0.3s ease;
        }
        
        .card-hover:hover {
            transform: translateY(-5px);
            box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
        }
        
        .search-input:focus {
            outline: none;
            box-shadow: 0 0 0 3px rgba(110, 142, 251, 0.3);
        }
        
        .ai-category:nth-child(odd) .category-icon {
            background: linear-gradient(135deg, #6e8efb, #a777e3);
        }
        
        .ai-category:nth-child(even) .category-icon {
            background: linear-gradient(135deg, #4facfe, #00f2fe);
        }
        
        .pulse-animation {
            animation: pulse 2s infinite;
        }
        
        @keyframes pulse {
            0% {
                transform: scale(1);
            }
            50% {
                transform: scale(1.05);
            }
            100% {
                transform: scale(1);
            }
        }
        
        .tooltip {
            position: relative;
            display: inline-block;
        }
        
        .tooltip .tooltiptext {
            visibility: hidden;
            width: 200px;
            background-color: #333;
            color: #fff;
            text-align: center;
            border-radius: 6px;
            padding: 5px;
            position: absolute;
            z-index: 1;
            bottom: 125%;
            left: 50%;
            transform: translateX(-50%);
            opacity: 0;
            transition: opacity 0.3s;
        }
        
        .tooltip:hover .tooltiptext {
            visibility: visible;
            opacity: 1;
        }

        /* Language transition effects */
        .lang-transition {
            transition: opacity 0.3s ease;
        }
        
        .lang-hidden {
            opacity: 0;
            position: absolute;
            pointer-events: none;
        }
        
        .lang-visible {
            opacity: 1;
            position: relative;
        }

        /* Language toggle button */
        .lang-toggle {
            position: relative;
            width: 60px;
            height: 30px;
            border-radius: 15px;
            background: linear-gradient(135deg, #6e8efb, #a777e3);
            cursor: pointer;
            overflow: hidden;
        }
        
        .lang-toggle-inner {
            position: absolute;
            width: 100%;
            height: 100%;
            display: flex;
            align-items: center;
            justify-content: space-around;
            color: white;
            font-weight: bold;
            font-size: 12px;
        }
        
        .lang-toggle-circle {
            position: absolute;
            top: 2px;
            left: 2px;
            width: 26px;
            height: 26px;
            background-color: white;
            border-radius: 50%;
            transition: transform 0.3s ease;
        }

        /* Responsive adjustments */
        @media (max-width: 767px) {
            .hero-image {
                width: 200px;
                height: 200px;
            }
            
            .search-container {
                flex-direction: column;
            }
            
            .search-button {
                position: relative;
                width: 100%;
                margin-top: 10px;
            }
            
            .category-grid {
                grid-template-columns: 1fr;
            }
            
            .trending-grid {
                grid-template-columns: 1fr;
            }
            
            .resources-grid {
                grid-template-columns: 1fr;
            }
            
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 30px;
            }
            
            .newsletter-form {
                flex-direction: column;
            }
            
            .newsletter-button {
                width: 100%;
                margin-top: 10px;
            }
        }

        @media (min-width: 768px) and (max-width: 1023px) {
            .hero-image {
                width: 250px;
                height: 250px;
            }
            
            .category-grid {
                grid-template-columns: 1fr 1fr;
            }
            
            .trending-grid {
                grid-template-columns: 1fr 1fr;
            }
            
            .resources-grid {
                grid-template-columns: 1fr 1fr;
            }
            
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (min-width: 1024px) {
            .hero-image {
                width: 320px;
                height: 320px;
            }
            
            .category-grid {
                grid-template-columns: repeat(4, 1fr);
            }
            
            .trending-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            
            .resources-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            
            .footer-grid {
                grid-template-columns: repeat(4, 1fr);
            }
        }
    </style>
</head>
<body>
    <!-- Header/Navigation -->
    <header class="gradient-bg text-white shadow-lg">
        <div class="container mx-auto px-4 py-4">
            <div class="flex justify-between items-center">
                <div class="flex items-center space-x-2">
                    <i class="fas fa-robot text-3xl"></i>
                    <h1 class="text-2xl font-bold">AI Navigator</h1>
                </div>
                <nav class="hidden md:flex space-x-4 lg:space-x-8">
                    <a href="#" class="hover:text-gray-200 font-medium" data-lang="en">Home</a>
                    <a href="#" class="hover:text-gray-200 font-medium" data-lang="zh">首页</a>
                    <a href="#categories" class="hover:text-gray-200 font-medium" data-lang="en">Categories</a>
                    <a href="#categories" class="hover:text-gray-200 font-medium" data-lang="zh">分类</a>
                    <a href="#trending" class="hover:text-gray-200 font-medium" data-lang="en">Trending</a>
                    <a href="#trending" class="hover:text-gray-200 font-medium" data-lang="zh">热门</a>
                    <a href="#resources" class="hover:text-gray-200 font-medium" data-lang="en">Resources</a>
                    <a href="#resources" class="hover:text-gray-200 font-medium" data-lang="zh">资源</a>
                    <a href="#about" class="hover:text-gray-200 font-medium" data-lang="en">About</a>
                    <a href="#about" class="hover:text-gray-200 font-medium" data-lang="zh">关于</a>
                </nav>
                <div class="flex items-center space-x-2 sm:space-x-4">
                    <div class="flex items-center space-x-2">
                        <div class="lang-toggle" id="lang-toggle">
                            <div class="lang-toggle-inner">
                                <span>EN</span>
                                <span></span>
                            </div>
                            <div class="lang-toggle-circle"></div>
                        </div>
                    </div>
                    <button class="hidden sm:block bg-white text-indigo-600 px-3 py-1 sm:px-4 sm:py-2 rounded-full font-medium hover:bg-gray-100 transition" data-lang="en">Sign In</button>
                    <button class="hidden sm:block bg-white text-indigo-600 px-3 py-1 sm:px-4 sm:py-2 rounded-full font-medium hover:bg-gray-100 transition" data-lang="zh">登录</button>
                    <button class="md:hidden text-2xl" id="mobile-menu-button">
                        <i class="fas fa-bars"></i>
                    </button>
                </div>
            </div>
        </div>
        
        <!-- Mobile Menu -->
        <div class="md:hidden hidden bg-indigo-700" id="mobile-menu">
            <div class="container mx-auto px-4 py-2 flex flex-col space-y-3">
                <a href="#" class="hover:text-gray-200 font-medium py-2" data-lang="en">Home</a>
                <a href="#" class="hover:text-gray-200 font-medium py-2" data-lang="zh">首页</a>
                <a href="#categories" class="hover:text-gray-200 font-medium py-2" data-lang="en">Categories</a>
                <a href="#categories" class="hover:text-gray-200 font-medium py-2" data-lang="zh">分类</a>
                <a href="#trending" class="hover:text-gray-200 font-medium py-2" data-lang="en">Trending</a>
                <a href="#trending" class="hover:text-gray-200 font-medium py-2" data-lang="zh">热门</a>
                <a href="#resources" class="hover:text-gray-200 font-medium py-2" data-lang="en">Resources</a>
                <a href="#resources" class="hover:text-gray-200 font-medium py-2" data-lang="zh">资源</a>
                <a href="#about" class="hover:text-gray-200 font-medium py-2" data-lang="en">About</a>
                <a href="#about" class="hover:text-gray-200 font-medium py-2" data-lang="zh">关于</a>
                <div class="flex pt-4 space-x-4">
                    <button class="bg-white text-indigo-600 px-4 py-2 rounded-full font-medium hover:bg-gray-100 transition" data-lang="en">Sign In</button>
                    <button class="bg-white text-indigo-600 px-4 py-2 rounded-full font-medium hover:bg-gray-100 transition" data-lang="zh">登录</button>
                </div>
            </div>
        </div>
    </header>

    <!-- Hero Section -->
    <section class="gradient-bg text-white py-12 md:py-20 lg:py-24">
        <div class="container mx-auto px-4">
            <div class="flex flex-col md:flex-row items-center">
                <div class="md:w-1/2 mb-10 md:mb-0">
                    <h1 class="text-3xl sm:text-4xl lg:text-5xl font-bold mb-4 sm:mb-6 lang-visible lang-transition" data-lang="en">Discover the Best AI Tools & Resources</h1>
                    <h1 class="text-3xl sm:text-4xl lg:text-5xl font-bold mb-4 sm:mb-6 lang-hidden lang-transition" data-lang="zh">发现最佳AI工具与资源</h1>
                    <p class="text-lg sm:text-xl mb-6 sm:mb-8 lang-visible lang-transition" data-lang="en">Your comprehensive guide to artificial intelligence technologies, tools, and learning resources all in one place.</p>
                    <p class="text-lg sm:text-xl mb-6 sm:mb-8 lang-hidden lang-transition" data-lang="zh">一站式获取人工智能技术、工具和学习资源的全面指南。</p>
                    <div class="flex flex-col sm:flex-row gap-4 search-container">
                        <input type="text" class="flex-grow px-4 sm:px-6 py-3 sm:py-4 rounded-full text-gray-800 focus:outline-none search-input lang-visible lang-transition" data-lang="en" placeholder="Search AI tools...">
                        <input type="text" class="flex-grow px-4 sm:px-6 py-3 sm:py-4 rounded-full text-gray-800 focus:outline-none search-input lang-hidden lang-transition" data-lang="zh" placeholder="搜索AI工具...">
                        <button class="bg-indigo-600 text-white px-6 py-3 sm:py-4 rounded-full font-medium hover:bg-indigo-700 transition search-button">
                            <i class="fas fa-search"></i> <span class="lang-visible lang-transition" data-lang="en">Search</span><span class="lang-hidden lang-transition" data-lang="zh">搜索</span>
                        </button>
                    </div>
                </div>
                <div class="md:w-1/2 flex justify-center">
                    <div class="relative">
                        <img src="https://cdn-icons-png.flaticon.com/512/2491/2491917.png" alt="AI Illustration" class="hero-image pulse-animation">
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                    <p class="text-gray-600 text-sm sm:text-base mb-4 sm:mb-6 lang-visible lang-transition" data-lang="en">AI Navigator is your comprehensive guide to the world of artificial intelligence. Our mission is to help individuals and businesses discover, evaluate, and implement AI solutions effectively.</p>
                    <p class="text-gray-600 text-sm sm:text-base mb-4 sm:mb-6 lang-hidden lang-transition" data-lang="zh">AI导航网是您探索人工智能世界的全面指南。我们的使命是帮助个人和企业有效地发现、评估和实施AI解决方案。</p>
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