body {  
    display: flex;  
    justify-content: center;  
    align-items: center;  
    height: 100vh;  
    background: linear-gradient(135deg, #a8dadc, #ffafcc);  
    font-family: 'Arial', sans-serif;  
}  

.login-container {  
    background: white;  
    padding: 30px;  
    border-radius: 10px;  
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);  
    max-width: 400px;  
    width: 100%;  
}  

h1 {  
    text-align: center;  
    color: #333;  
}  

.input-group {  
    margin-bottom: 20px;  
}  

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

input {  
    width: 100%;  
    padding: 12px;  
    border: 1px solid #ccc;  
    border-radius: 5px;  
    transition: border-color 0.3s;
    box-sizing: border-box; /* 确保padding不超出宽度 */
}  

input:focus {  
    border-color: #00CC00;  
    outline: none;  
}  

button {  
    width: 100%;  
    padding: 12px;  
    background-color: #00CC00;  
    color: white;  
    border: none;  
    border-radius: 5px;  
    font-weight: bold;  
    cursor: pointer;  
    transition: background-color 0.3s;  
}  

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

#message {  
    text-align: center;  
    margin-top: 15px;  
    color: #FF00FF;  
}  

.footer {  
    text-align: center;  
    margin-top: 20px;  
}  

.footer a {  
    color: #0000FF;  
    text-decoration: none;  
}  

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