@import url('https://fonts.googleapis.com/css2?family=Poppins:ital,wght@0,100;0,200;0,300;0,400;0,500;0,600;0,700;0,800;0,900;1,100;1,200;1,300;1,400;1,500;1,600;1,700;1,800;1,900&display=swap');
*{
    margin: 0;
    padding: 0;
}
html {
    font-size: calc(1000vw / 375);
    font-family: "Noto Sans JP", sans-serif;
    background-color: #F7F7F7;
    scroll-behavior: smooth;
}
a{
    text-decoration: none;
    color: #000;
}
body{
    width: 100%;
    padding: 0;
}
img{
    width: 100%;
}
ul{
    list-style: none;
}
.pc_br{
    display: none;
}
section{
    width: 90%;
    margin: 0 auto;
    max-width: 600px;
}
header{
    width: 90%;
    margin: 0 auto;
    margin-top: 25px;
    max-width: 600px;
}
h1{
    width: 60px;
    max-width: 223px;
}
.t_txt{
    width: 100%;
    font-size: 14px;
    line-height: 175%;
    margin: 0 auto;
    margin-top: 70px;
    max-width: 600px;
}
.t_txt h2{
    line-height: 150%;
    font-size: 24px;
}
.t_txt p{
    margin-top: 20px;
}
.section_ttl{
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    margin-top: 64px;
    column-gap:21px;
}
h2{
    font-size: 26px;
}
h3{
    font-size: 16px;
}
.section_ttl>span{
    width: 2px;
    height:28px;
    background-color:#000 ;
}
.section_txt{

    margin-top: 20px;
    font-size: 14px;
    line-height: 175%;
}
.section_img{
    margin-top: 40px;
}
h4{
    margin-top: 20px;
    font-size: 18px;
}
.under_txt{
    font-size: 13px;
    margin-top: 10px;
}
.section_btn{
    margin-top: 15px;
    width: 150px;
    height: 30px;
    border: 1px solid #000;
    border-radius: 6px;
}
.section_btn a{
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    column-gap: 10px;
    font-weight: 600;
}
.section_btn img{
    width: 12px;

}
.readmore{
    height: 48px;
    width: 260px;
    background-color: transparent;
    border: 1px solid #000;
    border-radius: 6px;
    color: #000;
    transform: 2s;
    font-weight: 600;
}
.on-click .open{
    display: none;
}
.readmore .opan{
    display: block;
}
.readmore .close{
    display:none;
}
.on-click .close{
    display: block;
}
.hide_area{
    margin-top: 60px;
display: flex;
flex-wrap: wrap;
align-items: center;
}

.case_txt{
    font-size: 14px;
    font-weight: 600;
    line-height: 200%;
}
.case_txt_space{
    font-size: 14px;
    font-weight: 600;
    line-height: 200%;
    margin-top: 40px;
}
#other{
    margin-bottom: 80px;
}
.hide-text{
    width: 100%;
}
nav {
    width: 100%;
    position: fixed;
    top: 8%;
    right:5%;
    width: 100%;
    height: 60px;
    width: fit-content;
}
.nav_li{
    display: grid;
    row-gap: 6px;
    font-size: 11px;
    text-align: right;
}
.is-current{
    font-weight: 600;
    margin-right: 2px;
    position: relative;
}
.readmore{
    font-size: 16px;
    margin: 0 auto;
}
.on-click{
    margin-top: 40px;
}
.is-current::before{
position: absolute;
content: "";
width: 5px;
height: 5px;
background-color: #000;
left: -10px;
top: 50%;
transform: translateY(-50%);
-webkit-transform: translateY(-50%);
-ms-transform: translateY(-50%);
border-radius: 99px;
}
.footer_area{
    padding-top: 60px;
    padding-bottom: 60px;
    background-color: #1a1a1a;
    color: #F7F7F7;
}
.footer_logo p{
    font-size: 16px;
    font-weight: bold;
    text-align: center;
}
.footer_right{
    width: fit-content;
    margin: 0 auto;
    text-align: center;
    line-height: 200%;
    margin-top: 20px;
    font-size: 13px;
}
.footer_right a{
color: #F7F7F7;
}
@media screen and (min-width:1024px) {
    header{
        width: 90%;
        margin: 0 auto;
        margin-top: 60px;
        max-width: 1366px;
        display: flex;
        column-gap: 80px;
        align-items:flex-start;
        flex-wrap: wrap;
    }
    .pc{
        display: none;
    }
    section{
        max-width: 1366px;
    }
    .t_txt{
     width: 80%;
     max-width: none;
     margin: 0;
    }
    .pc_br{
        display:block;
    }
    .sp_br{
        display: none;
    }
    h1{
        width: 90px;
    }
    .section_li{
        display: grid;
        grid-template-columns: 1fr 1fr;
        column-gap: 48px;
    }
    .t_txt{
        font-size: 18px;
    }
    .section_txt{
        width: 100%;
        font-size: 18px;
        margin-top: 40px;
    }
    .t_txt h2{
        font-size: 26px;
    }
    .t_txt p{
        margin-top: 41px;
    }
    .section_ttl{
        margin-top: 88px;
        column-gap: 22px;
    }
    h2{
        font-size: 36px;
    }
    .section_ttl>span{
        width: 4px;
    }
    h3{
        font-size: 18px;
    }
    h4{
        font-size: 20px;
        margin-top: 30px;
    }
    .under_txt{
        font-size: 18px;
    }
    .section_btn{
        margin-top: 34px;
        height: 38px;
        width: 180px;
    }
    .section_btn a{
        font-size: 14px;
    }
    .under_txt{
        margin-top: 15px;
    }
    .readmore{
        width: 500px;
        height: 60px;
    }
    .case_txt_space{
        margin-top: 0;
    }
    .hide-text{
        display: grid;
        grid-template-columns: 1fr 1fr;
        column-gap: 60px;
    }
    .case_txt{
        font-size: 18px;
    }
    .case_txt_space{
        font-size: 18px;
    }
    nav{
        top: 25%;
    }
    .nav_li{
        row-gap: 20px;
        font-size: 14px;
    }
    .readmore{
        font-size: 20px;
    }
    #other{
        margin-bottom: 160px;
    }
    .section_ttl{
        margin-top: 80px;
    }
    .hide_area{
        margin-top: 120px;
    }
    .section_wrap{
        display: flex;
        align-items: center;
      justify-content: space-between;
    }
    .section_wrap,.section_nowrap{
        width: 100%;
        margin: 0 auto;
    }
    footer{
background-color: #1a1a1a;
padding-top: 80px;
padding-bottom: 80px;width: 100%;

    }
    .footer_area{
        display: flex;
        flex-wrap: wrap;
   justify-content: space-between;
        width: 90%;
        margin: 0 auto;
        max-width: 1366px;
        padding: 0;
    }
    .footer_right{
        margin: 0;
        width: 70%;
        text-align: right;
        font-size: 18px;
        margin-top: -10px;
    }
    .footer_logo p{
        font-size: 24px;
    }
}

@media screen and (min-width:1366px) {
.t_txt{
    font-size: 20px;
}
h2{
    font-size: 42px;
}
h3{
    font-size: 24px;
}
.section_ttl>span{
    height: 36px;
}
h4{
    font-size: 26px;
}
.under_txt{
    font-size: 20px;
}
}