body { font-family: 'Arial', sans-serif; line-height: 1.6; color: #333; max-width: 1200px; margin: 0 auto; padding: 20px; background-color: #f5f5f5; }
        header { background-color: #ff4757; color: white; padding: 15px; border-radius: 8px; margin-bottom: 30px; }
        .logo { font-size: 28px; font-weight: bold; text-shadow: 2px 2px 4px rgba(0,0,0,0.3); }
        nav { display: flex; justify-content: space-between; align-items: center; }
        .mobile-menu-btn { display: none; background: none; border: none; color: white; font-size: 24px; cursor: pointer; }
        .nav-links { display: flex; gap: 20px; }
        .nav-links a { color: white; text-decoration: none; font-weight: bold; }
        h1 { color: #ff4757; border-bottom: 2px solid #ff4757; padding-bottom: 10px; }
        h2 { color: #2ed573; margin-top: 30px; }
        h3 { color: #1e90ff; }
        .download-btn, .login-btn { display: inline-block; background-color: #2ed573; color: white; padding: 12px 25px; text-decoration: none; border-radius: 5px; margin: 15px 0; font-weight: bold; }
        .download-btn:hover, .login-btn:hover { background-color: #218c74; }
        .image-container { text-align: center; margin: 25px 0; }
        img { max-width: 100%; height: auto; border-radius: 8px; }
        .tag-cloud { margin: 25px 0; display: flex; flex-wrap: wrap; gap: 10px; }
        .tag { background-color: #e1e1e1; padding: 5px 10px; border-radius: 20px; font-size: 14px; }
        footer { margin-top: 50px; padding-top: 20px; border-top: 1px solid #ddd; text-align: center; }
        @media (max-width: 768px) {
            .mobile-menu-btn { display: block; }
            .nav-links { display: none; flex-direction: column; position: absolute; top: 80px; left: 0; right: 0; background-color: #ff4757; padding: 15px; }
            .nav-links.active { display: flex; }
            .nav-links a { padding: 10px 0; }
        }