body {
            font-family: 'Arial', sans-serif;
            line-height: 1.6;
            margin: 0;
            padding: 0;
            color: #333;
            background-color: #f5f5f5;
        }
        header {
            background-color: #2c3e50;
            color: white;
            padding: 1rem;
            position: sticky;
            top: 0;
            z-index: 100;
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            max-width: 1200px;
            margin: 0 auto;
        }
        .logo {
            font-size: 1.8rem;
            font-weight: bold;
            color: #f39c12;
        }
        .logo span {
            color: white;
        }
        nav ul {
            display: flex;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        nav ul li {
            margin-left: 1.5rem;
        }
        nav ul li a {
            color: white;
            text-decoration: none;
            font-weight: 500;
        }
        .mobile-menu-btn {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.5rem;
            cursor: pointer;
        }
        .main-content {
            max-width: 1200px;
            margin: 2rem auto;
            padding: 0 1rem;
        }
        h1 {
            color: #2c3e50;
            font-size: 2.2rem;
            margin-bottom: 1.5rem;
        }
        h2 {
            color: #34495e;
            font-size: 1.8rem;
            margin: 2rem 0 1rem;
            border-bottom: 2px solid #f39c12;
            padding-bottom: 0.5rem;
        }
        h3 {
            color: #7f8c8d;
            font-size: 1.4rem;
            margin: 1.5rem 0 0.8rem;
        }
        p {
            margin-bottom: 1rem;
        }
        .highlight {
            background-color: #fff8e1;
            padding: 0.5rem;
            border-left: 4px solid #f39c12;
        }
        .download-btn, .login-btn {
            display: inline-block;
            background-color: #f39c12;
            color: white;
            padding: 0.8rem 1.5rem;
            text-decoration: none;
            border-radius: 4px;
            font-weight: bold;
            margin: 0.5rem 0;
            transition: background-color 0.3s;
        }
        .download-btn:hover, .login-btn:hover {
            background-color: #e67e22;
        }
        .image-container {
            margin: 2rem 0;
            text-align: center;
        }
        .image-container img {
            max-width: 100%;
            height: auto;
            border-radius: 8px;
            box-shadow: 0 4px 8px rgba(0,0,0,0.1);
        }
        .tags {
            margin: 2rem 0;
        }
        .tag {
            display: inline-block;
            background-color: #e0e0e0;
            padding: 0.3rem 0.8rem;
            border-radius: 20px;
            margin-right: 0.5rem;
            margin-bottom: 0.5rem;
            text-decoration: none;
            color: #333;
        }
        footer {
            background-color: #2c3e50;
            color: white;
            padding: 2rem 1rem;
            text-align: center;
        }
        .footer-links {
            margin: 1rem 0;
        }
        .footer-links a {
            color: #f39c12;
            text-decoration: none;
            margin: 0 0.5rem;
        }
        @media (max-width: 768px) {
            .mobile-menu-btn {
                display: block;
            }
            nav ul {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 100%;
                left: 0;
                width: 100%;
                background-color: #2c3e50;
                padding: 1rem;
                box-shadow: 0 4px 8px rgba(0,0,0,0.1);
            }
            nav ul.active {
                display: flex;
            }
            nav ul li {
                margin: 0.5rem 0;
            }
            h1 {
                font-size: 1.8rem;
            }
            h2 {
                font-size: 1.5rem;
            }
        }