body {
            font-family: 'Arial', sans-serif;
            line-height: 1.6;
            color: #333;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
            background: linear-gradient(135deg, #0f2027, #203a43, #2c5364);
            color: #fff;
        }
        header {
            background: rgba(0,0,0,0.8);
            padding: 20px;
            position: sticky;
            top: 0;
            z-index: 100;
        }
        .logo {
            font-size: 2.5em;
            font-weight: bold;
            color: #ffcc00;
            text-shadow: 2px 2px 4px #000;
            text-decoration: none;
        }
        nav {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .mobile-menu {
            display: none;
            font-size: 1.5em;
            cursor: pointer;
        }
        @media (max-width: 768px) {
            .desktop-nav {
                display: none;
            }
            .mobile-menu {
                display: block;
            }
        }
        .content {
            background: rgba(255,255,255,0.1);
            padding: 30px;
            margin-top: 20px;
            border-radius: 10px;
        }
        h1 {
            color: #ffcc00;
            border-bottom: 2px solid #ffcc00;
            padding-bottom: 10px;
        }
        h2 {
            color: #4fc3f7;
            margin-top: 30px;
        }
        h3 {
            color: #81d4fa;
        }
        .download-btn {
            display: inline-block;
            background: #ff5722;
            color: white;
            padding: 10px 20px;
            margin: 10px 0;
            border-radius: 5px;
            text-decoration: none;
            font-weight: bold;
        }
        .login-btn {
            display: inline-block;
            background: #4caf50;
            color: white;
            padding: 10px 20px;
            margin: 10px 0;
            border-radius: 5px;
            text-decoration: none;
            font-weight: bold;
        }
        img {
            max-width: 100%;
            height: auto;
            border-radius: 8px;
            margin: 20px 0;
        }
        footer {
            text-align: center;
            padding: 20px;
            margin-top: 30px;
            border-top: 1px solid #555;
            font-size: 0.9em;
        }
        .tag {
            display: inline-block;
            background: #333;
            color: #fff;
            padding: 5px 10px;
            margin: 5px;
            border-radius: 20px;
            text-decoration: none;
        }
        .type-nav {
            margin: 20px 0;
        }
        .type-nav a {
            color: #4fc3f7;
            margin: 0 10px;
            text-decoration: none;
        }