body {
    font-family: Arial, sans-serif;
    background-color: #9297a0; /* 背景色 */
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
}

.login-container {
    background-color: #ffffff;
    padding: 40px;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    width: 300px;
    text-align: center;
}

.login-logo img {
    max-width: 150px;
    margin-bottom: 20px;
}

.login-form h2 {
    margin-bottom: 20px;
    color: #333333;
}

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

.input-group label {
    display: block;
    margin-bottom: 5px;
    color: #555555;
    font-size: 14px;
}

.input-group input[type="text"],
.input-group input[type="password"] {
    width: 100%;
    padding: 10px;
    border: 1px solid #dddddd;
    border-radius: 4px;
    box-sizing: border-box;
}

.login-form button {
    background-color: #007bff; /* ボタンの背景色 */
    color: white;
    padding: 10px 15px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 16px;
    width: 100%;
    margin-top: 10px;
}

.login-form button:hover {
    background-color: #0056b3;
}

.links {
    margin-top: 20px;
    font-size: 14px;
}

.links a {
    color: #007bff;
    text-decoration: none;
}

.links a:hover {
    text-decoration: underline;
}