body { font-family: 'Arial', sans-serif; line-height: 1.6; color: #333; max-width: 1200px; margin: 0 auto; padding: 20px; }
        .logo { font-size: 28px; font-weight: bold; color: #FF4500; text-shadow: 1px 1px 2px rgba(0,0,0,0.1); }
        nav { background: #F8F8F8; padding: 10px; margin-bottom: 20px; }
        nav a { margin: 0 15px; text-decoration: none; color: #333; }
        .mobile-toggle { display: none; }
        h1 { color: #FF4500; font-size: 32px; margin-top: 30px; }
        h2 { color: #333; font-size: 24px; border-bottom: 2px solid #FF4500; padding-bottom: 5px; margin-top: 25px; }
        h3 { color: #666; font-size: 20px; margin-top: 20px; }
        .download-btn { background: #FF4500; color: white; padding: 12px 25px; border-radius: 5px; text-decoration: none; display: inline-block; margin: 15px 0; }
        .login-btn { background: #0066CC; color: white; padding: 12px 25px; border-radius: 5px; text-decoration: none; display: inline-block; margin: 15px 10px; }
        img { max-width: 100%; height: auto; margin: 15px 0; border-radius: 8px; }
        .image-container { text-align: center; margin: 20px 0; }
        .tag { background: #F0F0F0; padding: 5px 10px; border-radius: 3px; margin: 5px; display: inline-block; }
        footer { margin-top: 40px; padding-top: 20px; border-top: 1px solid #DDD; }
        @media (max-width: 768px) {
            .mobile-toggle { display: block; }
            nav a:not(.mobile-toggle) { display: none; }
            nav.active a { display: block; }
            body { padding: 10px; }
        }