* {
    padding: 0px;
    margin: 0px;
}

.bottom {
    width: 100vw;
    height: 50vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    z-index: 2;
    position: relative;
}

.title {
    position: relative;
    top: -230px;
    color: white;
    font-family: "宋体";
}

.login_form {
    min-height: 400px;
    width: 34vw;
    min-width: 700px;
    position: relative;
    top: -190px;
    border-radius: 1vw;
    background-color: rgba(255, 255, 255, 0.6);
    box-shadow: 1px 1px 5px rgba(100, 100, 100, 0.8);
    text-align: center;
    z-index: 99;
    margin: 0 auto;
}

.valid {
    width: 55%;
    height: 40px;
    line-height: 40px;
    margin-top: 50px;
    border: none;
    outline: none;
    font-size: 18px;
    border-radius: 3px;
    padding-left: 20px;
    letter-spacing: 5px;
    font-family: "宋体";
}

.valid:hover {
    cursor: text;
}

.valid_group {
    width: 58%;
    margin: 20px auto;
    text-align: left;
}

.phone_valid_cell {
    width: 12%;
    height: 30px;
    border: none;
    outline: none;
    text-align: center;
    font-size: 20px;
    border-bottom: 1px solid gray;
    background-color: rgba(0, 0, 0, 0);
}

.phone_valid_cell + .phone_valid_cell {
    margin-left: 18px;
}

.get_valid {
    font-size: 20px;
    float: right;
}

.get_valid:hover {
    cursor: pointer;
}

#login {
    width: 58%;
    height: 40px;
    line-height: 40px;
    letter-spacing: 20px;
    font-size: 20px;
    font-weight: bold;
    color: white;
    margin-top: 25px;
    background-color: #2B5D73;
    font-family: "宋体";
}

#login:hover {
    cursor: pointer;
}

#sy {
    position: absolute;
    width: 100vw;
    height: 50vh;
    overflow: hidden;
    left: 0px;
    top: 0px;
}