body {
    font-family: sans-serif;
}

header {
    border-top: 5px solid #46965A;
    border-bottom: 8px solid #fff;
    padding: 0 3% 0 3%;
    box-shadow: 0px 2px 4px -1px rgba(0, 0, 0, 0.2), 0px 4px 5px 0px rgba(0, 0, 0, 0.14), 0px 1px 10px 0px rgba(0, 0, 0, 0.12);
    height: 57px;
}

.header_photo img {
    width: 245px;
    height: 64px;
}

.contents {
    width: 75.5%;
    margin: auto;
    margin-top: 20%;
    border: 1px solid #46965A;
    border-radius: 5px;
    padding: 16px;
    max-width: 300px;
    min-width: 290px;
}

.title {
    font-size: 16px;
    font-weight: bold;
    line-height: 1.167;
    color: #46965A;
    text-align: center;
    margin-bottom: 5%;
}

.explanation {
    font-size: 14px;
    font-weight: 500;
    line-height: 1.235;
    padding-bottom: 30px;
    border-bottom: 1px solid #46965A;
}

.contact {
    margin-top: 5%;
    font-size: 12px;
}

.contact p, h4 {
    margin: 0;
    line-height: 1.6;
}

.contents_form {
    font-size: 12px;
    font-weight: bold;
}

footer {
    width: 100%;
    height: 110px;
    margin-top: 20%;
    background-color: #46965A;
    position: fixed;
    bottom: 0;
}

footer .policy a {
    color: #FFFFFF;
    text-decoration: none;
}

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

footer p {
    font-size: 14px;
    line-height: 1.43;
    padding: 0 25px 0 25px;
    color: #FFFFFF;
    text-align: center;
}

.policy {
    font-size: 16px;
    padding-top: 15px;
    margin-bottom: 10px;
    line-height: 1.5;
}

@media screen and (min-width: 900px){
    header {
        padding: 0 2% 0 2%;
    }

    .contents {
        width: 46%;
        margin: 7% auto 7% auto;
        padding: 40px;
        min-width: 650px;
    }

    .title {
        font-size: 36px;
        font-weight: 750;
    }

    .explanation {
        font-size: 20px;
    }

    .contact {
        font-size: 16px;
    }

    .contents_form {
        font-size: 16px;
    }

    footer {
        height: 90px;
        margin-top: 3%;
        background-color: #46965A;
    }
    
    footer p {
        margin: 0;
    }

    .policy {
        margin-bottom: 15px;
    }
}