html,body {
        margin: 0;
        padding: 0;
        height: 100%;
        border: none;
    }
.main {
    width: 100%;
    margin: 0 auto;
}
.PC img {
    width: 100%;
    display: block;
    margin: 0 auto;
}
.SP img {
    width: 100%;
    display: block;
    margin: 0 auto;
}

.PC .chinese_box{
    position: relative;
}
.PC .chinese_link{
    position: absolute;
    width: 14%;
    display: block;
    top: 4%;
    right: 2%;
}

.SP .chinese_box{
    position: relative;
}
.SP .chinese_link{
    position: absolute;
    width: 28%;
    display: block;
    top: 1%;
    right: 3%;
}


.PC .offerbox{
    position: relative;
}

.PC .offerbox .offerbtn_set5{
    position: absolute;
    width: 18%;
    display: block;
    top: 43%;
    right: 41%;
}
.PC .offerbox .offerbtn_set4{
    position: absolute;
    width: 18%;
    display: block;
    top: 24.5%;
    right: 41%;
}
.PC .offerbox .offerbtn_set3{
    position: absolute;
    width: 18%;
    display: block;
    bottom: 37%;
    right: 41%;
}
.PC .offerbox .offerbtn_set2{
    position: absolute;
    width: 18%;
    display: block;
    bottom: 19.5%;
    right: 41%;
}
.PC .offerbox .offerbtn_set1{
    position: absolute;
    width: 18%;
    display: block;
    bottom: 3.5%;
    right: 41%;
}

.SP .offerbox_m{
    position: relative;
}

.SP .offerbox_m .offerbtn_m_set5{
    position: absolute;
    width: 80%;
    display: block;
    right: 10%;
    top: 44%;
}
.SP .offerbox_m .offerbtn_m_set4{
    position: absolute;
    width: 80%;
    display: block;
    right: 10%;
    top: 24.5%;
}
.SP .offerbox_m .offerbtn_m_set3{
    position: absolute;
    width: 80%;
    display: block;
    right: 10%;
    top: 61%;
}
.SP .offerbox_m .offerbtn_m_set2{
    position: absolute;
    width: 80%;
    display: block;
    right: 10%;
    bottom:19.5%;
}
.SP .offerbox_m .offerbtn_m_set1{
    position: absolute;
    width: 80%;
    display: block;
    right: 10%;
    bottom:3.5%;
}


.offerbtn:hover{
    opacity: 0.8; 
}


.desgin3_box{
    width:42%;
    margin:0 auto;
}
@media screen and (max-width: 768px){
    .desgin3_box{
        width:100%;
    }
}

.troubles06{
    width:50%;
    margin:0 auto;
    position: relative;
}
@media screen and (max-width: 768px){
    .troubles06{
        width:80%;
    }
}

.QA{
    width: 40%;
    margin:0 auto;
}
@media screen and (max-width: 768px){
    .QA{
        width: 100%;
    }
}

.sns_btn {
    text-align: center;
}
.sns_btn ul li{
    display: inline-block;
    margin: 0 8px;
    cursor: pointer;
}

.color{
    width: 70%;
    margin: 0 auto;
    display: block;
}

@media screen and (max-width: 768px){
    .color{
        width: 100%;
    }
}

.carousel-item{
    transition: transform 0.1s ease-in-out,-webkit-transform 0.1s ease-in-out;
}
#color_carousel_1 .carousel-control-prev{
    background-color: black;
    width: 3%;
   }
#color_carousel_1 .carousel-control-next{
    background-color: black;
    width: 3%;
}

.calculator_box{
    width:640px;
    margin: 0 auto;
}
@media screen and (max-width: 768px){
    .calculator_box{
        width:100%;
    }
}

.buybtn{
    width: 174px;
    position: fixed;
    right: 0;
    bottom: 20px;
    z-index: 99;
}
.buybtn img{
    width: 100%; 
    height: auto;
}

@media screen and (max-width: 768px){
    .buybtn {
        width: 28%;
        max-width: 170px;
    }
}

.modal_img_style{
    max-width: 100%;
    height:auto;
}
@media screen and (max-width: 768px){
    .modal_img_style{
        max-width: 70%;
    }
}
@media screen and (max-width: 768px){
    .media-body{
        height: 21vh;
        overflow:auto;
    }
    .modal{
        top:60px;
    }
}

.SP{
    display: none;
}
@media screen and (max-width: 768px){
.PC{
    display: none;
}
.SP{
    display: block;
}
}