@charset "UTF-8";
/* CSS Document */

* {
    margin: 0;
    padding: 0;
}

body{
    background: #ffffff;
    width: 800px;
    margin: 0 auto;
    font-family: "ヒラギノ角ゴ ProN W3", "Hiragino Kaku Gothic ProN", "メイリオ", Meiryo, sans-serif;
}

section:last-child {
    margin:0 auto 50px;
}

.title{
    color: #333;
    font-size: 24px;
    font-weight: 500;
    padding: 0;
}

.size-guide-title {
    border: none;
    border-bottom: 1px solid #ccc;
    margin: 0 auto 6px auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 5px 0;
}

.back-button {
    background-color: #fff;
    color: #616161;
    font-size: 14px;
    font-weight: bold;
    border-radius: 4px;
    border: 1px solid #45423f;
    padding: 4px 20px 4px 28px; 
    position: relative;
    text-decoration: none;
    transition: all 0.2s linear;
}

.back-button::before{
    top: 50%;
    margin-top: -4px;
    right: 49px;
    position: absolute;
    content: '';
    display: inline-block;
    width: 9px;
    height: 9px;
    border-top: 1px solid #616161;
    border-right: 1px solid #616161;
    transform: rotate(220deg) skew(-10deg, 0);
    transition: all 0.2s linear;
}

.back-button:hover {
    background-color: #eee;
}

h3 {
    font-size: 16px;
}

.close-btn{
    position: absolute;
    right: 0;
    top: -40px;
}
.close-btn img{
    width: 40px;
    transition: .2s;
}


.size-nav{
    margin: 0 auto 10px;
    padding: 0;
    width: 100%;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
}
.size-nav li{
    list-style: none;
    margin: 0 20px 0 0;
    display: inline-block;
    overflow: hidden;
    margin: 10px 10px;
    text-align: center;
    position: relative;
    border-radius: 4px;
    width: 25%;
    background-color: #3e3e3e;
    transition: all 0.2s linear;
}
.size-nav li a{
    color: #fff;
    text-decoration: none;
    padding: 7px 5px 5px 0px;
    display: block;
    overflow: hidden;
    font-size: 13px;
    font-weight: bold;
}
.size-nav li a::after{
    top: 45%;
    margin-top: -6px;
    right: 8px;
    position: absolute;
    content: '';
    display: inline-block;
    width: 9px;
    height: 9px;
    border-top: 1px solid #fff;
    border-right: 1px solid #fff;
    transform: rotate(130deg) skew(-10deg, 0);
    transition: all 0.2s linear;
}
.size-nav li:hover{
    opacity: 0.7;
}
/* .size-nav li a:hover::after{
    opacity: 1;
} */

.guide-title {
    font-size: 20px;
    padding: 11px 14px;
    background-color: #f5f5f5;
    font-weight: bold;
    color: #212121;
}

.size-index-top ul {
    display: flex;
    justify-content: space-evenly;
}

.size-index-top ul img {
    width: 100%;
    height: auto;
    max-width: 160px;
    aspect-ratio: 16/5;
}

.size-index-top ul li {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.size-index-top ul li p {
    display: block;
    font-size: 14px;
    margin-bottom: 16px;
}

.size-index-list {
    margin: 20px auto;
    display: flex;
    justify-content: center;
    flex-direction: column;
    flex-wrap: wrap;
    align-content: center;
    gap: 16px;
}

.size-index-list li {
    list-style: none;
    font-size: 14px;
    font-feature-settings: "palt";
    letter-spacing: 0.1em;
    padding: 0 14px;
}

.size-disc-ttl {
    font-weight: bold;
    font-size: 16px;
}

.size-index-list li img {
    max-width: 100%;
    height: auto;
}

.m-area {
    padding-bottom: 15px;
    padding-top: 15px;
    line-height: 1.7;
    margin: 0 auto;
    max-width: 700px;
}

.m-table-simple {
    overflow: hidden;
}

.m-table-simple table {
    width: 100%;
    margin: 10px auto;
    max-width: 700px;
}

.m-table-simple tr {
    width: 100%;
    border: 1px solid #ddd;
}

.m-table-simple.m-table-thl th {
    width: 30%;
    vertical-align: top;
}

.m-table-simple.m-table-thl th,
.m-table-simple.m-table-thl td {
    text-align: left;
    padding: 9px;
    border: 1px solid #ddd;
}

.m-table-simple th {
    background-color: #F5F5F5;
}

.m-table-simple tr td:first-of-type {
    background-color: #F5F5F5;
    font-weight: bold;
}

.size-index p {
    display: block;
    font-size: 14px;
    margin: 16px auto;
    text-align: center;
}

.size-index img {
    display: block;
    width: 100%;
    max-width: 680px;
    height: auto;
    aspect-ratio: 340/207;
    margin: 0 auto;
}

@media screen and (min-width:641px) {

    
    .m-table-simple.m-table-thl th,
    .m-table-simple.m-table-thl td {
        padding: 14px;
        width: calc(100%/7);
    }

    .m-table-simple th, .m-table-simple td {
        padding-top: 3px;
        padding-bottom: 3px;
        font-size: 13px;
    }

    
    .m-table-simple.m-table-thl.w-narrow th,
    .m-table-simple.m-table-thl.w-narrow td {
        padding: 11px;
        width: calc(100%/12);
    }

    .is-sp {
        display: none;
    }
    

    }/* end media */



@media screen and (max-width: 640px ) {

    body {
        width: auto;
        margin: 0 12px;
    }

    .title {
        font-size: 20px;
        padding: 5px 0 0 10px;
    }

    .size-nav {
        margin: 30px auto;
    }

    .size-nav li {
        width: 100%;
        font-size: 14px;
    }

    .size-index-list {
        padding: 0;
    }

    .guide-title {
        font-size: 18px;
    }

    .size-disc-ttl {
        font-size: 14px;
    }

    .size-index-top ul {
        justify-content: space-around;
    }

    .m-area {
        padding-bottom: 15px;
        padding-top: 15px;
        line-height: 1.7;
        margin: 0 auto;
        width: 100%;
    }

    .m-table-simple table {
        width: 100%;
    }

    .m-table-simple{
        width: 100%;
        margin: 10px auto;
    }

    .m-table-simple.m-table-thl th,
    .m-table-simple.m-table-thl td {
        width: calc(98%/7);
        font-size: 10px;
        padding: 5px;
    }

    .m-table-simple.m-table-thl.w-narrow th,
    .m-table-simple.m-table-thl.w-narrow td {
        font-size: 10px;
        padding: 5px;
    }

    .is-pc {
        display: none;
    }

    .size-index p {
        text-align: left;
    }
    
}