body {
            font-family: 'Arial', sans-serif;
            line-height: 1.6;
            color: #333;
            max-width: 1200px;
            margin: 0 auto;
            padding: 20px;
            background-color: #f9f9f9;
        }
        header {
            background-color: #ff6b35;
            color: white;
            padding: 15px 0;
            text-align: center;
            position: relative;
        }
        .logo {
            font-size: 28px;
            font-weight: bold;
            letter-spacing: 2px;
        }
        nav {
            display: flex;
            justify-content: center;
            gap: 20px;
            margin-top: 10px;
        }
        nav a {
            color: white;
            text-decoration: none;
            font-weight: 500;
        }
        .mobile-menu-btn {
            display: none;
            position: absolute;
            right: 20px;
            top: 15px;
            background: none;
            border: none;
            color: white;
            font-size: 24px;
            cursor: pointer;
        }
        h1 {
            color: #ff6b35;
            margin-top: 30px;
            font-size: 28px;
        }
        h2 {
            color: #4a4a4a;
            margin-top: 25px;
            font-size: 22px;
            border-bottom: 2px solid #eee;
            padding-bottom: 5px;
        }
        h3 {
            color: #666;
            margin-top: 20px;
            font-size: 18px;
        }
        .download-btn, .login-btn {
            display: inline-block;
            background-color: #ff6b35;
            color: white;
            padding: 12px 25px;
            text-decoration: none;
            border-radius: 5px;
            margin: 15px 0;
            font-weight: bold;
            transition: background-color 0.3s;
        }
        .download-btn:hover, .login-btn:hover {
            background-color: #e55b2f;
        }
        .image-container {
            text-align: center;
            margin: 25px 0;
        }
        .image-container img {
            max-width: 100%;
            height: auto;
            border-radius: 8px;
        }
        .table-container {
            overflow-x: auto;
            margin: 20px 0;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            margin: 20px 0;
        }
        th, td {
            border: 1px solid #ddd;
            padding: 12px;
            text-align: left;
        }
        th {
            background-color: #f2f2f2;
        }
        .tags {
            margin: 20px 0;
        }
        .tag {
            display: inline-block;
            background-color: #e0e0e0;
            padding: 5px 10px;
            border-radius: 15px;
            margin-right: 8px;
            margin-bottom: 8px;
            text-decoration: none;
            color: #333;
        }
        footer {
            background-color: #333;
            color: white;
            text-align: center;
            padding: 20px 0;
            margin-top: 40px;
        }
        @media (max-width: 768px) {
            nav {
                flex-direction: column;
                align-items: center;
                display: none;
            }
            .mobile-menu-btn {
                display: block;
            }
            nav.active {
                display: flex;
            }
            body {
                padding: 10px;
            }
            h1 {
                font-size: 24px;
            }
            h2 {
                font-size: 20px;
            }
        }