body {
    font-family: Arial, sans-serif;
    background-color: #f5f5f5;
    margin: 0;
    padding: 0;
}

main {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 70vh;
}

section {
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    width: 40%;
    background-color: rgba(249, 249, 249, 0.8); /* 半透明背景 */
}

.form-container {
    width: 100%;
}

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

.form-group h\\:outputLabel {
    display: block;
    margin-bottom: 5px;
    font-weight: bold;
    color: #555;
}

.form-control {
    width: 100%;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
    box-sizing: border-box;
}

.btn-primary {
    background-color: #007bff;
}

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

h\\:messages {
    margin-top: 20px;
    color: #ff0000;
}