.index_modal_bg{
    position: fixed;
    top: 0;
    left: 0;
    z-index: 10;
    width: 100%;
    height: 100vh;
    background-color: rgba(0,0,0,0.3);
}
.modal_writing{
    position: absolute;
    top: 16vh;
    left: calc((100% - 450px) / 2);
    z-index: 11;
    width: 450px;
    border-radius: 15px;
    padding-bottom: 36px;
    overflow-y: hidden;
    background-image: linear-gradient(45deg, #ebf5fe, #cee8ff);
}
.modal_header{
    position: relative;
    width: 100%;
    color: #333;
    text-align: center;
    padding: 20px 5%;
}
.close_m{
    position: absolute;
    right: 0;
    top: 0;
    width: 94%;
    padding: 0 3%;
    padding-top: 15px;
    text-align: right;
}
.close_m img{
    width: 18px;
}
.text_one{
    font-size: 19px;
    font-weight: bold;
    letter-spacing: 2px;
    padding: 0 8%;
    line-height: 32px;
}
.mtext{
    position: relative;
    width: 88%;
    margin: 0 auto;
    margin-top: 10px;
    color: #fff;
    text-align: center;
    padding: 20px 3%;
    background-color: #3b83fb;
    border-radius: 10px;
    letter-spacing: 1px;
}
.mtext_title{
    position: absolute;
    top: -17px;
    left: 0;
    width: 60px;
    height: 32px;
    color: #fff;
    line-height: 32px;
    border-radius: 10px 10px 10px 0;
    background-color: #13d2ffb0;
    border: 1px #05abd2 solid;
}
.mtext h3{
    font-size: 18px;
    font-weight: bold;
}
.mtext p{
    width: 88%;
    margin: 0 auto;
    margin-top: 30px;
    padding: 10px 0;
    background-color: #156fff;
}
.into_writing{
    width: 100%;
    text-align: center;
    margin-top: 20px;
}
.into_writing p{
    font-size: 15px;
    line-height: 24px;
    color: #777;
    letter-spacing: 0;
}
.into_writing a{
    display: inline-block;
    height: 42px;
    text-align: center;
    line-height: 42px;
    color: #fff;
    border-radius: 6px;
    font-size: 18px;
    margin: 10px 1%;
    padding: 0 25px;
    background-color: #ff8286;
    text-decoration: none;
    box-shadow: none;
    font-weight: normal;
}
@media screen and (max-width: 750px) {
    .modal_writing{
        position: absolute;
        top: 16vh;
        left:calc((100% - 335px) / 2);
        z-index: 11;
        width: 335px;
        padding-bottom: 22px;
    }
    .close_m img{
        width: 15px;
    }
    .modal_header{
        font-size: 14px;
    }
    .text_one{
        font-size: 18px;
        font-weight: bold;
        letter-spacing: 2px;
        line-height: 28px;
    }
    .mtext h3{
        font-size: 16px;
        margin-top: 10px;
    }
    .mtext p {
        width: 98%;
        margin-top: 17px;
        padding: 6px 0;
        font-size: 14px;
    }
    .into_writing a{
        height: 40px;
        line-height: 40px;
        font-size: 17px;
        margin: 5px;
    }
}