body {
            font-family: 'Arial', sans-serif;
            line-height: 1.6;
            color: #333;
            margin: 0;
            padding: 0;
            background-color: #f5f5f5;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 20px;
        }
        header {
            background-color: #004d99;
            color: white;
            padding: 15px 0;
            position: sticky;
            top: 0;
            z-index: 100;
        }
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .logo {
            font-size: 28px;
            font-weight: bold;
            color: #ffcc00;
        }
        .nav-links {
            display: flex;
            gap: 20px;
        }
        .nav-links a {
            color: white;
            text-decoration: none;
            font-weight: 500;
        }
        .mobile-menu-btn {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 24px;
            cursor: pointer;
        }
        .mobile-menu {
            display: none;
            position: absolute;
            top: 60px;
            left: 0;
            width: 100%;
            background-color: #004d99;
            padding: 15px 0;
            flex-direction: column;
            align-items: center;
            gap: 10px;
        }
        .mobile-menu.active {
            display: flex;
        }
        h1 {
            color: #004d99;
            font-size: 32px;
            margin-bottom: 20px;
        }
        h2 {
            color: #0066cc;
            font-size: 24px;
            margin-top: 30px;
            margin-bottom: 15px;
        }
        h3 {
            color: #0077b6;
            font-size: 20px;
            margin-top: 25px;
            margin-bottom: 10px;
        }
        .download-btn, .login-btn {
            display: inline-block;
            background-color: #009933;
            color: white;
            padding: 12px 25px;
            text-decoration: none;
            border-radius: 5px;
            font-weight: bold;
            margin: 15px 0;
            transition: background-color 0.3s;
        }
        .download-btn:hover, .login-btn:hover {
            background-color: #007722;
        }
        .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;
            background-color: white;
            box-shadow: 0 0 10px rgba(0,0,0,0.1);
        }
        th, td {
            padding: 12px 15px;
            text-align: left;
            border-bottom: 1px solid #ddd;
        }
        th {
            background-color: #004d99;
            color: white;
        }
        tr:hover {
            background-color: #f0f0f0;
        }
        .tag-container {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin: 20px 0;
        }
        .tag {
            background-color: #e0e0e0;
            padding: 5px 10px;
            border-radius: 20px;
            text-decoration: none;
            color: #333;
            font-size: 14px;
        }
        footer {
            background-color: #333;
            color: white;
            padding: 30px 0;
            text-align: center;
            margin-top: 40px;
        }
        .footer-links {
            display: flex;
            justify-content: center;
            gap: 20px;
            margin-bottom: 20px;
            flex-wrap: wrap;
        }
        .footer-links a {
            color: #ffcc00;
            text-decoration: none;
        }
        @media (max-width: 768px) {
            .nav-links {
                display: none;
            }
            .mobile-menu-btn {
                display: block;
            }
            h1 {
                font-size: 26px;
            }
            h2 {
                font-size: 22px;
            }
            h3 {
                font-size: 18px;
            }
        }