* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Microsoft YaHei', sans-serif;
        }

        body {
            background-color: #121212;
            color: #e0e0e0;
            background-image: url('https://via.placeholder.com/1920x1080');
            background-size: cover;
            background-attachment: fixed;
        }

        .overlay {
            background-color: rgba(0, 0, 0, 0.7);
            min-height: 100vh;
            padding: 20px;
        }

        header {
            text-align: center;
            padding: 30px 0;
            border-bottom: 2px solid #ff5500;
        }

        h1 {
            color: #ff5500;
            font-size: 36px;
            text-shadow: 0 0 10px rgba(255, 85, 0, 0.5);
            margin-bottom: 10px;
        }

        .subtitle {
            color: #aaa;
            font-size: 16px;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 20px;
        }

        .features {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-around;
            margin: 40px 0;
        }

        .feature {
            width: 30%;
            background: rgba(30, 30, 30, 0.8);
            padding: 20px;
            margin: 10px;
            border-radius: 5px;
            border-left: 3px solid #ff5500;
            transition: transform 0.3s;
        }

        .feature:hover {
            transform: translateY(-5px);
        }

        .feature h3 {
            color: #ff5500;
            margin-bottom: 10px;
        }

        .download-section {
            text-align: center;
            margin: 50px 0;
            padding: 30px;
            background: rgba(20, 20, 20, 0.9);
            border-radius: 10px;
        }

        .download-btn {
            display: inline-block;
            background: linear-gradient(to right, #ff5500, #ff3300);
            color: white;
            padding: 15px 40px;
            margin: 20px 0;
            border-radius: 30px;
            text-decoration: none;
            font-size: 18px;
            font-weight: bold;
            transition: all 0.3s;
            box-shadow: 0 5px 15px rgba(255, 85, 0, 0.4);
        }

        .download-btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 20px rgba(255, 85, 0, 0.6);
        }

        .version-info {
            color: #aaa;
            font-size: 14px;
            margin-top: 10px;
        }

        .screenshots {
            margin: 40px 0;
        }

        .screenshot-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 15px;
            margin-top: 20px;
        }

        .screenshot {
            width: 100%;
            border: 2px solid #333;
            border-radius: 5px;
            transition: all 0.3s;
        }

        .screenshot:hover {
            transform: scale(1.02);
            border-color: #ff5500;
        }

        footer {
            text-align: center;
            padding: 30px 0;
            border-top: 1px solid #333;
            margin-top: 50px;
            color: #666;
            font-size: 14px;
        }

        .warning {
            color: #ff3333;
            background: rgba(255, 0, 0, 0.1);
            padding: 15px;
            border-radius: 5px;
            margin: 20px 0;
            border-left: 3px solid #ff3333;
        }

        @media (max-width: 768px) {
            .feature {
                width: 100%;
            }

            .screenshot-grid {
                grid-template-columns: 1fr;
            }
        }