body, html {  
    margin: 0;  
    padding: 0;  
    width: 100%;  
    height: 100%;  
    font-family: Arial, sans-serif;  
    background-color: #f4f4f4;  
    display: flex;  
    justify-content: center;  
    align-items: center;  
    background-image: url(../img/bg.png);
}  
  
.denglu {  
    background-color: #fff;  
    padding: 0 16px;  
    border-radius: 8px;  
    box-shadow: 0 0 10px rgba(0,0,0,0.1);  
    width: 342px;  
    max-width: 400px; 
    height: 352px;
    box-sizing: border-box;
}  
  
.title {  
    font-size: 30px;
    font-weight: 700;
    letter-spacing: 0px;
    line-height: 43.44px;
    color: #051526;
    text-align: left;
    vertical-align: top;
    margin-top: 24px;
}
.title1{
    font-size: 16px;
    font-weight: 400;
    letter-spacing: 0px;
    line-height: 23.17px;
    color: #828385;
    text-align: left;
    vertical-align: top;
    margin-top: 14px;
    margin-bottom: 32px;
} 
  
form {  
    width: 310px;
    height: 166px;
    opacity: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: flex-end;
    color: #E5E5E5;

}  
  
label {  
    width: 100%;  
}  
  
.text {  
    width: 310px;
    height: 41px;
    opacity: 1;
    border-radius: 8px;
    border: 1px solid rgba(229, 229, 229, 1);
    display: flex;
    justify-content: flex-start;
    align-items: flex-start;
    padding-left: 10px;
    box-sizing: border-box;
    margin-bottom: 24px;
}  
  
.submit {  
    width: 100%;  
    padding: 10px;  
    background-color: #007bff;  
    color: white;  
    border: none;  
    border-radius: 4px;  
    cursor: pointer;  
    font-size: 16px;  
}  
.biant{
    margin-top: 12px;
    color: #007bff;
}  
.submit:hover {  
    background-color: #0056b3;  
}