body { font-family: 'Arial', sans-serif; line-height: 1.6; color: #333; max-width: 1200px; margin: 0 auto; padding: 20px; }
        header { background-color: #FF6B35; 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: #fff; border: none; padding: 8px 12px; border-radius: 4px; cursor: pointer; }
        nav a { color: white; text-decoration: none; margin-left: 15px; }
        h1 { color: #FF6B35; font-size: 32px; margin-bottom: 20px; }
        h2 { color: #4CAF50; font-size: 24px; margin-top: 35px; }
        h3 { color: #2196F3; font-size: 20px; margin-top: 25px; }
        .download-btn, .login-btn { display: inline-block; background: #4CAF50; color: white; padding: 12px 25px; text-decoration: none; border-radius: 5px; margin: 15px 0; font-weight: bold; }
        .login-btn { background: #2196F3; }
        img { max-width: 100%; height: auto; margin: 20px 0; border-radius: 8px; }
        .table-container { overflow-x: auto; margin: 20px 0; }
        table { width: 100%; border-collapse: collapse; }
        th, td { border: 1px solid #ddd; padding: 12px; text-align: left; }
        th { background-color: #f2f2f2; }
        .tags { margin: 30px 0; }
        .tag { display: inline-block; background: #f1f1f1; padding: 6px 12px; margin-right: 8px; border-radius: 20px; text-decoration: none; color: #333; }
        footer { margin-top: 50px; padding-top: 20px; border-top: 1px solid #eee; }
        @media (max-width: 768px) {
            .mobile-menu-btn { display: block; }
            nav ul { display: none; flex-direction: column; width: 100%; }
            nav ul.active { display: flex; }
            nav li { margin: 10px 0; }
            h1 { font-size: 26px; }
            h2 { font-size: 22px; }
        }