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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>DeepSeek | 深度求索</title>
    <link rel="icon" type="image/x-icon" href="https://cdn.deepseek.com/logo.png?x-image-process=image%2Fresize%2Cw_1920">
    <script src="https://cdn.tailwindcss.com"></script>
    <script src="https://cdn.jsdelivr.net/npm/feather-icons/dist/feather.min.js"></script>
    <script src="https://unpkg.com/feather-icons"></script>
    <script src="https://cdn.jsdelivr.net/npm/vanta@latest/dist/vanta.globe.min.js"></script>
    <style>
        @import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');
        
        body {
            font-family: 'Inter', sans-serif;
        }
        
        .gradient-bg {
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
        }
        
        .glass-effect {
            background: rgba(255, 255, 255, 0.1);
            backdrop-filter: blur(10px);
            border: 1px solid rgba(255, 255, 255, 0.2);
        }
        
        .text-gradient {
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        
        .hover-lift {
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }
        
        .hover-lift:hover {
            transform: translateY(-5px);
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
        }
        
        .section-divider {
            height: 1px;
            background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
        }
    </style>
</head>
<body class="bg-gray-50">
    <!-- Navigation -->
    <nav class="bg-white shadow-sm sticky top-0 z-50">
        <div class="max-w-7xl mx-auto px-4 sm:px-6 lg:px-8">
            <div class="flex justify-between items-center h-16">
                <div class="flex items-center space-x-2">
                    <img src="https://cdn.deepseek.com/logo.png?x-image-process=image%2Fresize%2Cw_1920" alt="DeepSeek Logo" class="h-8 w-8">
                    <span class="text-xl font-bold text-gray-900">DeepSeek</span>
                    <span class="text-gray-600">深度求索</span>
                </div>
                <div class="hidden md:flex items-center space-x-8">
                    <a href="#research" class="text-gray-700 hover:text-purple-600 transition-colors">Research</a>
                    <a href="#products" class="text-gray-700 hover:text-purple-600 transition-colors">Products</a>
                    <a href="#about" class="text-gray-700 hover:text-purple-600 transition-colors">About</a>
                </div>
                <div class="flex items-center space-x-4">
                    <a href="https://www.deepseek.com/en" class="text-gray-700 hover:text-purple-600 transition-colors">English</a>
                    <a href="https://chat.deepseek.com/" class="bg-purple-600 text-white px-4 py-2 rounded-lg hover:bg-purple-700 transition-colors">Start Chat</a>
                </div>
            </div>
        </div>
    </nav>
    <!-- Hero Section -->
    <div id="vanta-bg" class="gradient-bg text-white py-20">
        <div class="max-w-7xl mx-auto px-4 sm:px-6 lg:px-8">
            <div class="text-center">
                <!-- Announcement Banner -->
                <div class="inline-flex items-center bg-white/20 backdrop-blur-sm rounded-full px-6 py-3 mb-8 hover-lift">
                    <span class="text-lg mr-2">🎉</span>
                    <a href="https://mp.weixin.qq.com/s/6hKi5F_S2zQ4g6SyF0UNow" class="text-white hover:text-purple-200 transition-colors">
                        DeepSeek-V3.2-Exp Model Released - Training & Inference Optimized, API Price Reduced
                    </a>
                </div>
                
                <h1 class="text-5xl md:text-7xl font-bold mb-6">
                    Explore the <span class="text-yellow-300">Unknown</span>
                </h1>
                <p class="text-xl md:text-2xl text-gray-200 mb-8 max-w-3xl mx-auto">
                    DeepSeek's official free AI assistant for search, writing, reading, problem-solving, and translation
                </p>
                
                <!-- Interactive Search Bar -->
                <div class="max-w-2xl mx-auto mb-8">
                    <div class="relative">
                        <input 
                            type="text" 
                            id="search-input"
                            placeholder="Ask DeepSeek anything..."
                            class="w-full px-6 py-4 rounded-xl bg-white/10 backdrop-blur-sm border border-white/20 text-white placeholder-gray-300 focus:outline-none focus:ring-2 focus:ring-yellow-300 focus:border-transparent"
                        >
                        <button 
                            id="search-btn"
                            class="absolute right-2 top-1/2 transform -translate-y-1/2 bg-yellow-300 text-purple-600 px-6 py-2 rounded-lg font-semibold hover:bg-yellow-400 transition-colors"
                        >
                            Ask
                        </button>
                    </div>
                    <div id="search-suggestions" class="hidden mt-2 bg-white/10 backdrop-blur-sm rounded-lg p-2">
                        <div class="text-left text-sm text-gray-300">Popular questions:</div>
                        <div class="flex flex-wrap gap-2 mt-2">
                            <button class="suggestion-btn bg-white/20 hover:bg-white/30 text-white text-sm px-3 py-1 rounded-full transition-colors">How does AI work?</button>
                            <button class="suggestion-btn bg-white/20 hover:bg-white/30 text-white text-sm px-3 py-1 rounded-full transition-colors">Write a poem about technology</button>
                            <button class="suggestion-btn bg-white/20 hover:bg-white/30 text-white text-sm px-3 py-1 rounded-full transition-colors">Explain quantum computing</button>
                        </div>
                    </div>
                </div>
                
                <div class="flex flex-col sm:flex-row gap-4 justify-center items-center">
                    <a href="https://chat.deepseek.com/" class="bg-white text-purple-600 px-8 py-4 rounded-xl font-semibold text-lg hover:bg-gray-100 transition-colors hover-lift">
                        Start Conversation with DeepSeek-V3.2
                    </a>
                    <a href="https://download.deepseek.com/app/" class="border-2 border-white text-white px-8 py-4 rounded-xl font-semibold text-lg hover:bg-white hover:text-purple-600 transition-colors hover-lift">
                        Get Mobile App
                    </a>
                </div>
                
                <div class="mt-12">
                    <a href="https://platform.deepseek.com/" class="inline-flex items-center text-white hover:text-yellow-300 transition-colors">
                        <span>API Platform</span>
                        <i data-feather="arrow-up-right" class="ml-2 w-5 h-5"></i>
                    </a>
                </div>
            </div>
        </div>
    </div>
<!-- Research Section -->
    <section id="research" class="py-20 bg-white">
        <div class="max-w-7xl mx-auto px-4 sm:px-6 lg:px-8">
            <div class="text-center mb-16">
                <h2 class="text-4xl font-bold text-gray-900 mb-4">Research Models</h2>
                <p class="text-xl text-gray-600 max-w-2xl mx-auto">
                    Cutting-edge AI research pushing the boundaries of artificial intelligence
                </p>
            </div>
            
            <div class="grid grid-cols-1 md:grid-cols-2 lg:grid-cols-4 gap-6">
                <div class="bg-gray-50 rounded-2xl p-6 hover-lift border border-gray-200">
                    <h3 class="text-xl font-semibold text-gray-900 mb-3">DeepSeek R1</h3>
                    <p class="text-gray-600 mb-4">Advanced reasoning model for complex problem solving</p>
                    <a href="https://github.com/deepseek-ai/DeepSeek-R1" class="text-purple-600 hover:text-purple-700 font-medium">Explore →</a>
                </div>
                
                <div class="bg-gray-50 rounded-2xl p-6 hover-lift border border-gray-200">
                    <h3 class="text-xl font-semibold text-gray-900 mb-3">DeepSeek V3</h3>
                    <p class="text-gray-600 mb-4">Latest flagship model with enhanced capabilities</p>
                    <a href="https://github.com/deepseek-ai/DeepSeek-V3" class="text-purple-600 hover:text-purple-700 font-medium">Explore →</a>
                </div>
                
                <div class="bg-gray-50 rounded-2xl p-6 hover-lift border border-gray-200">
                    <h3 class="text-xl font-semibold text-gray-900 mb-3">DeepSeek Coder V2</h3>
                    <p class="text-gray-600 mb-4">Specialized model for programming and code generation</p>
                    <a href="https://github.com/deepseek-ai/DeepSeek-Coder-V2" class="text-purple-600 hover:text-purple-700 font-medium">Explore →</a>
                </div>
                
                <div class="bg-gray-50 rounded-2xl p-6 hover-lift border border-gray-200">
                    <h3 class="text-xl font-semibold text-gray-900 mb-3">DeepSeek VL</h3>
                    <p class="text-gray-600 mb-4">Vision-language model for multimodal understanding</p>
                    <a href="https://github.com/deepseek-ai/DeepSeek-VL" class="text-purple-600 hover:text-purple-700 font-medium">Explore →</a>
                </div>
            </div>
            
            <div class="grid grid-cols-1 md:grid-cols-2 lg:grid-cols-4 gap-6 mt-6">
                <div class="bg-gray-50 rounded-2xl p-6 hover-lift border border-gray-200">
                    <h3 class="text-xl font-semibold text-gray-900 mb-3">DeepSeek V2</h3>
                    <p class="text-gray-600 mb-4">Previous generation model with proven performance</p>
                    <a href="https://github.com/deepseek-ai/DeepSeek-V2" class="text-purple-600 hover:text-purple-700 font-medium">Explore →</a>
                </div>
                
                <div class="bg-gray-50 rounded-2xl p-6 hover-lift border border-gray-200">
                    <h3 class="text-xl font-semibold text-gray-900 mb-3">DeepSeek Coder</h3>
                    <p class="text-gray-600 mb-4">Original code generation model</p>
                    <a href="https://github.com/deepseek-ai/DeepSeek-Coder" class="text-purple-600 hover:text-purple-700 font-medium">Explore →</a>
                </div>
                
                <div class="bg-gray-50 rounded-2xl p-6 hover-lift border border-gray-200">
                    <h3 class="text-xl font-semibold text-gray-900 mb-3">DeepSeek Math</h3>
                    <p class="text-gray-600 mb-4">Specialized for mathematical reasoning</p>
                    <a href="https://github.com/deepseek-ai/DeepSeek-Math" class="text-purple-600 hover:text-purple-700 font-medium">Explore →</a>
                </div>
                
                <div class="bg-gray-50 rounded-2xl p-6 hover-lift border border-gray-200">
                    <h3 class="text-xl font-semibold text-gray-900 mb-3">DeepSeek LLM</h3>
                    <p class="text-gray-600 mb-4">Foundation language model</p>
                    <a href="https://github.com/deepseek-ai/DeepSeek-LLM" class="text-purple-600 hover:text-purple-700 font-medium">Explore →</a>
                </div>
            </div>
        </div>
    </section>
    <!-- Interactive Demo Section -->
    <section class="py-20 bg-white">
        <div class="max-w-7xl mx-auto px-4 sm:px-6 lg:px-8">
            <div class="text-center mb-16">
                <h2 class="text-4xl font-bold text-gray-900 mb-4">Try DeepSeek</h2>
                <p class="text-xl text-gray-600 max-w-2xl mx-auto">
                    Experience AI-powered assistance with our interactive demo
                </p>
            </div>
            
            <div class="grid grid-cols-1 lg:grid-cols-2 gap-8">
                <div class="bg-gray-50 rounded-2xl p-8">
                    <h3 class="text-2xl font-bold text-gray-900 mb-6">Ask AI Assistant</h3>
                    <div class="space-y-4">
                        <div class="bg-white rounded-lg p-4 shadow-sm">
                            <div class="flex items-start space-x-3">
                                <div class="w-8 h-8 bg-purple-600 rounded-full flex items-center justify-center">
                                    <span class="text-white text-sm font-bold">AI</span>
                                </div>
                                <div class="flex-1">
                                    <p class="text-gray-700" id="ai-response">Hello! I'm DeepSeek AI assistant. How can I help you today?</p>
                                </div>
                            </div>
                        </div>
                        
                        <div class="flex space-x-4">
                            <input 
                                type="text" 
                                id="chat-input"
                                placeholder="Type your message..."
                                class="flex-1 px-4 py-3 border border-gray-300 rounded-lg focus:outline-none focus:ring-2 focus:ring-purple-600 focus:border-transparent"
                            >
                            <button 
                                id="send-btn"
                                class="bg-purple-600 text-white px-6 py-3 rounded-lg font-semibold hover:bg-purple-700 transition-colors"
                            >
                                Send
                            </button>
                        </div>
                        
                        <div class="flex flex-wrap gap-2">
                            <button class="demo-btn bg-purple-100 text-purple-700 px-3 py-2 rounded-lg text-sm hover:bg-purple-200 transition-colors">Explain AI</button>
                            <button class="demo-btn bg-purple-100 text-purple-700 px-3 py-2 rounded-lg text-sm hover:bg-purple-200 transition-colors">Write code</button>
                            <button class="demo-btn bg-purple-100 text-purple-700 px-3 py-2 rounded-lg text-sm hover:bg-purple-200 transition-colors">Translate</button>
                            <button class="demo-btn bg-purple-100 text-purple-700 px-3 py-2 rounded-lg text-sm hover:bg-purple-200 transition-colors">Summarize</button>
                        </div>
                    </div>
                </div>
                
                <div class="bg-gray-50 rounded-2xl p-8">
                    <h3 class="text-2xl font-bold text-gray-900 mb-6">Model Comparison</h3>
                    <div class="space-y-4">
                        <div class="bg-white rounded-lg p-4 shadow-sm">
                            <div class="flex justify-between items-center mb-2">
                                <span class="font-semibold text-gray-700">DeepSeek V3.2</span>
                                <span class="text-green-600 text-sm font-medium">Latest</span>
                            </div>
                            <div class="text-sm text-gray-600">
                                Advanced reasoning, 128K context, multimodal support
                            </div>
                        </div>
                        
                        <div class="bg-white rounded-lg p-4 shadow-sm">
                            <div class="flex justify-between items-center mb-2">
                                <span class="font-semibold text-gray-700">DeepSeek R1</span>
                                <span class="text-blue-600 text-sm font-medium">Reasoning</span>
                            </div>
                            <div class="text-sm text-gray-600">
                                Specialized for complex problem solving and reasoning
                            </div>
                        </div>
                        
                        <div class="bg-white rounded-lg p-4 shadow-sm">
                            <div class="flex justify-between items-center mb-2">
                                <span class="font-semibold text-gray-700">DeepSeek Coder V2</span>
                                <span class="text-orange-600 text-sm font-medium">Coding</span>
                            </div>
                            <div class="text-sm text-gray-600">
                                Optimized for programming and code generation tasks
                            </div>
                        </div>
                    </div>
                    
                    <div class="mt-6 p-4 bg-yellow-50 rounded-lg border border-yellow-200">
                        <div class="flex items-center">
                            <i data-feather="info" class="text-yellow-600 w-5 h-5 mr-3"></i>
                            <span class="text-yellow-800 text-sm">All models are free to use with generous rate limits</span>
                        </div>
                    </div>
                </div>
            </div>
        </div>
    </section>

    <!-- Products Section -->
    <section id="products" class="py-20 bg-gray-50">
        <div class="max-w-7xl mx-auto px-4 sm:px-6 lg:px-8">
            <div class="text-center mb-16">
                <h2 class="text-4xl font-bold text-gray-900 mb-4">Our Products</h2>
                <p class="text-xl text-gray-600 max-w-2xl mx-auto">
                    Access AI capabilities through various platforms and interfaces
                </p>
            </div>
            
            <div class="grid grid-cols-1 md:grid-cols-2 lg:grid-cols-3 gap-8">
                <div class="bg-white rounded-2xl p-8 hover-lift shadow-sm">
                    <div class="w-12 h-12 bg-purple-100 rounded-lg flex items-center justify-center mb-6">
                        <i data-feather="smartphone" class="text-purple-600 w-6 h-6"></i>
                    </div>
                    <h3 class="text-2xl font-bold text-gray-900 mb-4">DeepSeek App</h3>
                    <p class="text-gray-600 mb-6">Get the official mobile app for AI assistance on the go</p>
                    <a href="https://download.deepseek.com/app/" class="text-purple-600 hover:text-purple-700 font-medium">Download Now →</a>
                </div>
                
                <div class="bg-white rounded-2xl p-8 hover-lift shadow-sm">
                    <div class="w-12 h-12 bg-blue-100 rounded-lg flex items-center justify-center mb-6">
                        <i data-feather="globe" class="text-blue-600 w-6 h-6"></i>
                    </div>
                    <h3 class="text-2xl font-bold text-gray-900 mb-4">Web Version</h3>
                    <p class="text-gray-600 mb-6">Access DeepSeek directly through your web browser</p>
                    <a href="https://chat.deepseek.com/" class="text-purple-600 hover:text-purple-700 font-medium">Start Chatting →</a>
                </div>
                
                <div class="bg-white rounded-2xl p-8 hover-lift shadow-sm">
                    <div class="w-12 h-12 bg-green-100 rounded-lg flex items-center justify-center mb-6">
                        <i data-feather="cpu" class="text-green-600 w-6 h-6"></i>
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