body {
            font-family: Arial, sans-serif;
            background-color: #f4f4f4;
            margin: 0;
            padding: 0;
        }

        header {
            width: 100%;
            background-color: #333;
            color: #fff;
            padding: 10px 0;
            text-align: center;
            position: fixed;
            top: 0;
            left: 0;
            z-index: 1000;
        }

        header h1 {
            margin: 0;
        }

        .container {
            background-color: #fff;
            padding: 20px;
            border-radius: 8px;
            box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
            max-width: 400px;
            width: 100%;
            margin: 80px auto; /* 增加了一个 margin 来确保容器不被 header 覆盖 */
            box-sizing: border-box;
        }

        .container h2 {
            text-align: center;
            margin-bottom: 20px;
        }

        .input-group {
            margin-bottom: 15px;
        }

        .input-group label {
            display: block;
            margin-bottom: 5px;
            font-weight: bold;
        }
                label {
            display: block;
            margin-bottom: 5px;
            font-weight: bold;
            color: #555;
        }

        .input-group input {
            width: 100%;
            padding: 8px;
            border-radius: 4px;
            border: 1px solid #ccc;
        }

        .btn {
            width: 100%;
            padding: 10px;
            background-color: #007BFF;
            color: #fff;
            border: none;
            border-radius: 4px;
            cursor: pointer;
            font-size: 16px;
        }

        .btn:hover {
            background-color: #0056b3;
        }

        .result {
            margin-top: 20px;
            padding: 10px;
            border: 1px solid #ccc;
            border-radius: 4px;
            background-color: #e9ecef;
            font-size: 14px;
            word-wrap: break-word;
        }

        #qrcode {
            margin-top: 20px;
        }
		.form-group {
            margin-bottom: 15px;
        }
        select, input[type="password"], input[type="text"] {
            width: 100%;
            padding: 10px;
            border: 1px solid #ddd;
            border-radius: 4px;
            font-size: 16px;
            box-sizing: border-box;
        }

        select:focus, input[type="password"]:focus, input[type="text"]:focus {
            border-color: #3b82f6;
            outline: none;
            box-shadow: 0 0 5px rgba(59, 130, 246, 0.5);
        }

        .hidden {
            display: none;
        }
        #qrInputContainer {
            position: relative;
            border: 2px dashed #ddd;
            border-radius: 8px;
            padding: 20px;
            text-align: center;
            background-color: #fafafa;
            cursor: pointer;
            transition: background-color 0.3s ease;
        }

        #qrInputContainer:hover {
            background-color: #f0f0f0;
        }

        #qrInputContainer.dragover {
            background-color: #e0e0e0;
        }

        #qrInput {
            position: absolute;
            width: 100%;
            height: 100%;
            opacity: 0;
            top: 0;
            left: 0;
            cursor: pointer;
        }