.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: fixed;
    top: 8vh;
    left: calc((100% - 450px) / 2);
    z-index: 11;
    width: 450px;
    background: url("../images/tk_bg_default.png") no-repeat;
    background-size: 100% auto;
    background-color: #fff;
    border-radius: 15px;
    padding-bottom: 24px;
}
.close_m{
    width: 94%;
    padding-top: 20px;
    text-align: right;
}
.close_m img{
    width: 24px;
}
.mtext{
    width: 92%;
    margin: 0 auto;
    color: #666;
    text-align: center;
    line-height: 42px;
    font-size: 24px;
    padding-top: 205px;
}
.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;
    width: 68%;
    height: 40px;
    text-align: center;
    line-height: 40px;
    color: #fff;
    border-radius: 40px;
    font-size: 17px;
    margin: 10px 1%;
    background-color: #fa6e46;
    text-decoration: none;
    padding: 0;
    box-shadow: none;
    font-weight: normal;
}
@media screen and (max-width: 750px) {
    .modal_writing{
        position: fixed;
        top: 10vh;
        left:calc((100% - 335px) / 2);
        z-index: 11;
        width: 335px;
        padding-bottom: 20px;
    }
    .close_m img{
        width: 18px;
    }
    .mtext{
        color: #666;
        line-height: 30px;
        font-size: 17px;
        padding-top: 147px;
        font-weight: bold;
    }
    .into_writing{
        /*margin-top: 10px;*/
    }
    .into_writing p{
        font-size: 13px;
    }
    .into_writing a{
        width: 88%;
        height: 40px;
        line-height: 40px;
        font-size: 16px;
        margin: 5px 0;
    }
}