body {
    width: 100%;
    height: 100vh;
    background: linear-gradient(300deg, #4c9ecb, #1263a7)
}

.card {
    width: 1378px;
    height: 777px;
    box-shadow: 20px 20px 30px 0 rgba(0, 0, 0, 0.16);
    background-color: #ffffff;
    border-radius: unset;
    display: flex;
    flex-direction: row;
    justify-content: center;
    position: absolute;
    top: 50%;
    left: 50%;
    -webkit-transform: translate(-50%,-50%);
    transform: translate(-50%,-50%);
}

.card-left {
    width: 50%;
    height: 100%;
    float: left;
    position: relative;
}

.card-right {
    width: 50%;
    height: 100%;
    box-shadow: 0 3px 6px 0 rgba(0, 0, 0, 0.16);
    background-color: #f2f2f2;
    float: right;
    position: relative;
}

.title {
    position: absolute;
    top: 50%;
    left: 50%;
    -webkit-transform: translate(-50%,-50%);
    transform: translate(-50%,-50%);
}

.title img {
    width: 508px;
    height: 131px;
    object-fit: contain;
}

.subtitle {
    width: 350px;
    height: 29px;
    font-family: SourceHanSansJP;
    font-size: 20px;
    font-weight: 900;
    font-stretch: normal;
    font-style: normal;
    line-height: 1.45;
    letter-spacing: 2px;
    text-align: left;
    color: #34a8d4;
    margin: 15.2px 0 0 21px;
}

.login-form {
    position: absolute;
    top: 50%;
    left: 50%;
    -webkit-transform: translate(-50%,-50%);
    transform: translate(-50%,-50%);
    padding-top: 165px;
}

.login-form .form-group {
    margin-bottom: 28px;
}

.login-form label {
    margin-bottom: 0.1vw;
    font-family: SourceHanSans;
    font-size: 13px;
    font-weight: bold;
    letter-spacing: normal;
    color: #a4a4a4;
    position: relative;
    padding-left: 42px;
}

.login-form button {
    width: 474px;
    height: 63px;
    background-color: #2c85bf;
    border-radius: 0px;
    border: 0;
    font-family: SourceHanSans;
    font-size: 24px;
    font-weight: bold;
    font-stretch: normal;
    font-style: normal;
    margin-bottom: 25px;
}

.login-form input[type=text],
.login-form input[type=password] {
    width: 474px;
    height: 63px;
    background-color: #ffffff;
}

.login-form input[type=text]::placeholder,
.login-form input[type=password]::placeholder {
    opacity: 0.8;
    font-family: SourceHanSans;
    font-size: 17px;
    font-weight: bold;
    font-stretch: normal;
    font-style: normal;
    line-height: 1.47;
    letter-spacing: 0.85px;
    text-align: left;
    color: #656565;
}

.login-form .button-container {
    padding-top: 80px;
}

.login-form button.forgotten {
    background-color: transparent;
    width: 167px;
    height: 31px;
    border: solid 2px #2c85bf;
    border-radius: 0px;
    font-family: SourceHanSans;
    font-size: 11px;
    font-weight: bold;
    letter-spacing: 0.55px;
    color: #2c85bf;
}

.login-form button.operating {
    background-color: transparent;
    width: 167px;
    height: 31px;
    border: solid 2px #2c85bf;
    border-radius: 0px;
    font-family: SourceHanSans;
    font-size: 11px;
    font-weight: bold;
    letter-spacing: 0.55px;
    color: #2c85bf;
}

.message-container {
    display: flex;
    -webkit-align-items: center;
    align-items: center;
    -webkit-justify-content: center;
    justify-content: center;
    margin-bottom: 20px;
    min-height: 25px;
}

.error-message {
    margin: 0;
    font-family: SourceHanSans;
    font-size: 17px;
    font-weight: bold;
    font-stretch: normal;
    font-style: normal;
    line-height: 1.47;
    letter-spacing: 0.85px;
    text-align: left;
    color: #f54b4b;
}

.error-mark {
    width: 25px;
    height: 25px;
    background-color: #f54b4b;
    font-family: SourceHanSansJP;
    font-size: 20px;
    font-weight: 900;
    font-stretch: normal;
    font-style: normal;
    line-height: 1.45;
    text-align: center;
    color: #ffffff;
    border-radius: 15px;
    margin-right: 0.2vw;
}