@charset "UTF-8";
html,body{
    width: 100%;
    height: 100%;
    font-family: 'BIZ UDMincho', serif;
}
body{
    background-color: #f5e9d5;
}
a{
    text-decoration: none;
}
@media screen and (max-width:480px){
    /* スマフォ縦 */
    body{
        overflow-x: hidden;/* 追記 */
    }
    /********** header **********/
    header{
        display: flex;
        background-color: rgba(255, 255, 255, 0.6);
        justify-content: space-between;
        width: 100%;
        height: auto;
        position: fixed;
        z-index: 15;
    }
    #logo_area h1 a{
        display: block;
        padding: 20px;
    }
    .logo_img{
        width: 60px;
        height: auto;
    }
    /********** nav **********/
    nav ul{
        -ms-writing-mode: tb-rl;
        -webkit-writing-mode: vertical-rl;
        writing-mode: vertical-rl;
        margin: 30px 50px;
        font-size: 0.9rem;
    }
    nav ul li{
        margin: 20px 30px;
        padding: 0 10px;
    }
    .nav_item{
        color: #fff;
        letter-spacing: 3px;
        background-color: #9dcc7b;
        transition: 0.3s ease-in-out;
        padding: 10px 8px;
        border: 1px solid #f5e9d5;
    }
    .nav_item:hover{
        color: #000;
    }
    .hamburger{
        width: 40px;
        height: 25px;
        position: relative;
        margin: 30px;
        z-index: 10;
    }
    .hamburger span{
        position: absolute;
        width: 100%;
        height: 1px;
        background-color: #333;
        transition: .5s;/* 追記 */
    }
    .hamburger span:first-of-type{/* ハンバーガーメニューの1番目の線 */
        top: 0;
    }
    .hamburger span:nth-of-type(2){/* ハンバーガーメニューの2番目の線 */
        top: 50%;
    }
    .hamburger span:last-of-type{/* ハンバーガーメニューの3番目の線 */
        top: 100%;
    }
    .slide_nav{
        width: 100%;
        background-color: rgba(255, 255, 255, 0.6);
        position: fixed;
        top: 65px;
        left: -50px;
        transform: translateX(100%);/* 左右（水平方向）の動き */
        transition: 0.5s;
        z-index: 5;
    }
    .slide_nav ul li{
        color: #fff;
        line-height: 400%;
        text-align: center;
    }
    .hamburger.active span:first-of-type{/* ハンバーガーメニューの1番目の線 */
        top: 50%;
        transform: rotate(45deg);/* 線を斜めにする */
    }
    .hamburger.active span:nth-of-type(2){/* ハンバーガーメニューの2番目の線 */
        opacity: 0;/* 透明にする */
    }
    .hamburger.active span:last-of-type{/* ハンバーガーメニューの3番目の線 */
        top: 50%;
        transform: rotate(-45deg);/* 線を斜めにする */
    }
    .slide_nav.active{
        transform: translateX(0);/* 左右（水平方向）の動き */
    }
    /*
        疑似クラスと疑似要素
        疑似クラス　:hover,:visited...など
        疑似要素　::before,::after...など
        要素とクラスを組み合わせる時はクラスが先！
    */
    /********** nav END **********/
    /********** main ************/
    main{
        width: 100%;
    }
    #works_area,
    #profile_area,
    #contact_area,
    #pp_area{
        width: 100%;
        padding: 100px 0;
        position: relative;
        top: 140px;
    }
    #works_area::before{
        content: '';
        position: absolute;
        top: 0;
        bottom: 0;
        left: 0;
        right: 0;
        background-color: #9dcc7b;
        transform: skewY(363deg);
        z-index: -1;
    }
    #profile_area::before{
        content: '';
        position: absolute;
        top: 0;
        bottom: 0;
        left: 0;
        right: 0;
        background-color: #e4dccf;
        transform: skewY(-7deg);
        z-index: -1;
    }
    #contact_area::before{
        content: '';
        position: absolute;
        top: 0;
        bottom: 0;
        left: 0;
        right: 0;
        background-color: #9dcc7b;
        transform: skewY(363deg);
        z-index: -1;
    }
    #pp_area::before{
        content: '';
        position: absolute;
        top: 0;
        bottom: 0;
        left: 0;
        right: 0;
        background-color: #e4dccf;
        transform: skewY(363deg);
        z-index: -1;
    }
    #concept_area{
        width: 100%;
        padding-top: 140px;
        text-align: center;
    }
    #concept_area .vrtcl-contents{
        -webkit-writing-mode: vertical-rl;
        -moz-writing-mode: vertical-rl;
        /*-ms-writing-mode: tb-rl;*/
        -ms-writing-mode: vertical-rl;
        writing-mode: vertical-rl;
        display: inline-block;
        height: 75vh;/*％やpx指定では縦書きのデザイン崩れが発生*/
        letter-spacing: 3px;
        text-align: left;
    }
    #concept_area .vrtcl-contents h2{
        font-size: 2.0rem;
        line-height: 1.8;
        margin: 0;
    }
    #concept_area .vrtcl-contents p{
        font-size: 1.1rem;
        line-height: 2.5;
        text-indent: 1em;
    }
    #works_area p,
    #profile_area p,
    #contact_area p,
    #pp_area p{
        font-size: 1.1rem;
        line-height: 1.6;
    }
    #concept_area h2,
    #works_area h2,
    #profile_area h2,
    #contact_area h2,
    #pp_area h2{
        font-size: 2.4rem;
        line-height: 1.0;
        text-align: center;
        margin-bottom: 50px;
    }
    span.heading-sub-en{
        display: inline-block;
        font-family: sans-serif;
        font-size: 0.8rem;
        line-height: 1.0;
        letter-spacing: 3px;
        border-bottom: 1px dashed;
        padding: 0 0 4px;
        margin-bottom: 3px;
    }
    span.heading-ja{
        display: block;
        line-height: 1.4;
    }
    .add{
        margin: 0 auto;
        margin-bottom: 16px;
    }
    h3{
        font-size: 1.6rem;
        line-height: 1.0;
        margin: 50px 0;
    }
    .contents{
        width: 80%;
        margin: 0 auto;
    }
    .contents ul{
        margin-bottom: 50px;
    }
    .contents ul li{
        margin-bottom: 30px;
    }
    .contents ul li .contents_img{
        display: block;
    }
    .contents ul li .contents_img .img_item{
        width: 100%;
        margin: 0 auto 16px;
    }
    .contents ul li .contents_img .img_item img{
        width: 100%;
        height: auto;
    }
    h4{
        display: inline-block;
        font-family: sans-serif;
        font-size: 1.2rem;
        line-height: 1.6;
        letter-spacing: 2px;
        border-bottom: 1px dashed #fff;
        margin-bottom: 16px;
    }
    /********** footer **********/
    footer{
        width: 90%;
        margin: 200px auto 0;
    }
    #footer_box{
        font-size: 0.8rem;
        padding: 100px 0 30px;
        text-align: right;
    }
    .footer-item{
        margin: 0 0 30px;
    }
    .footer-item a,
    #copyright{
        color: #888;
    }
    .footer-item a:hover{
        color: #000;
        background:linear-gradient(transparent 60%, #9dcc7b 60%);
    }
    /********** privacy policy **********/
    a.blank[target="_blank"]:after{
        content: url(../img/blank.png);
    }
}
@media screen and (min-width:481px) and (max-width:1080px){
    /* タブレット */
    /********** header **********/
    body{
        overflow-x: hidden;/* 追記 */
    }
    /********** header **********/
    header{
        display: flex;
        background-color: rgba(255, 255, 255, 0.6);
        justify-content: space-between;
        width: 100%;
        height: auto;
        position: fixed;
        z-index: 15;
    }
    #logo_area h1 a{
        display: block;
        padding: 20px;
    }
    .logo_img{
        width: 60px;
        height: auto;
    }
    /********** nav **********/
    nav ul{
        -ms-writing-mode: tb-rl;
        -webkit-writing-mode: vertical-rl;
        writing-mode: vertical-rl;
        margin: 30px 50px;
        font-size: 0.9rem;
    }
    nav ul li{
        margin: 20px 30px;
        padding: 0 10px;
    }
    .nav_item{
        color: #fff;
        letter-spacing: 3px;
        background-color: #9dcc7b;
        transition: 0.3s ease-in-out;
        padding: 10px 8px;
        border: 1px solid #f5e9d5;
    }
    .nav_item:hover{
        color: #000;
    }
    .hamburger{
        width: 40px;
        height: 25px;
        position: relative;
        margin: 30px;
        z-index: 10;
    }
    .hamburger span{
        position: absolute;
        width: 100%;
        height: 1px;
        background-color: #333;
        transition: .5s;/* 追記 */
    }
    .hamburger span:first-of-type{/* ハンバーガーメニューの1番目の線 */
        top: 0;
    }
    .hamburger span:nth-of-type(2){/* ハンバーガーメニューの2番目の線 */
        top: 50%;
    }
    .hamburger span:last-of-type{/* ハンバーガーメニューの3番目の線 */
        top: 100%;
    }
    .slide_nav{
        width: 100%;
        background-color: rgba(255, 255, 255, 0.6);
        position: fixed;
        top: 65px;
        left: -50px;
        transform: translateX(100%);/* 左右（水平方向）の動き */
        transition: 0.5s;
        z-index: 5;
    }
    .slide_nav ul li{
        color: #fff;
        line-height: 400%;
        text-align: center;
    }
    .hamburger.active span:first-of-type{/* ハンバーガーメニューの1番目の線 */
        top: 50%;
        transform: rotate(45deg);/* 線を斜めにする */
    }
    .hamburger.active span:nth-of-type(2){/* ハンバーガーメニューの2番目の線 */
        opacity: 0;/* 透明にする */
    }
    .hamburger.active span:last-of-type{/* ハンバーガーメニューの3番目の線 */
        top: 50%;
        transform: rotate(-45deg);/* 線を斜めにする */
    }
    .slide_nav.active{
        transform: translateX(0);/* 左右（水平方向）の動き */
    }
    /********** nav END **********/
    /********** main ************/
    main{
        width: 100%;
    }
    #works_area,
    #profile_area,
    #contact_area,
    #pp_area{
        width: 100%;
        padding: 100px 0;
        position: relative;
        top: 140px;
    }
    #works_area::before{
        content: '';
        position: absolute;
        top: 0;
        bottom: 0;
        left: 0;
        right: 0;
        background-color: #9dcc7b;
        transform: skewY(363deg);
        z-index: -1;
    }
    #profile_area::before{
        content: '';
        position: absolute;
        top: 0;
        bottom: 0;
        left: 0;
        right: 0;
        background-color: #e4dccf;
        transform: skewY(-7deg);
        z-index: -1;
    }
    #contact_area::before{
        content: '';
        position: absolute;
        top: 0;
        bottom: 0;
        left: 0;
        right: 0;
        background-color: #9dcc7b;
        transform: skewY(363deg);
        z-index: -1;
    }
    #pp_area::before{
        content: '';
        position: absolute;
        top: 0;
        bottom: 0;
        left: 0;
        right: 0;
        background-color: #e4dccf;
        transform: skewY(363deg);
        z-index: -1;
    }
    #concept_area{
        width: 100%;
        padding-top: 140px;
        text-align: center;
    }
    #concept_area .vrtcl-contents{
        -webkit-writing-mode: vertical-rl;
        -moz-writing-mode: vertical-rl;
        -ms-writing-mode: vertical-rl;
        writing-mode: vertical-rl;
        display: inline-block;
        text-align: left;
        height: 75vh;/*％やpx指定では縦書きのデザイン崩れが発生*/
        letter-spacing: 3px;
    }
    #concept_area .vrtcl-contents h2{
        font-size: 2.0rem;
        line-height: 1.8;
        margin: 0;
    }
    #concept_area .vrtcl-contents p{
        font-size: 1.1rem;
        line-height: 3.0;
        text-indent: 1em;
    }
    #works_area p,
    #profile_area p,
    #contact_area p,
    #pp_area p{
        font-size: 1.1rem;
        line-height: 1.6;
    }
    #concept_area h2,
    #works_area h2,
    #profile_area h2,
    #contact_area h2,
    #pp_area h2{
        font-size: 2.4rem;
        line-height: 1.0;
        text-align: center;
        margin-bottom: 50px;
    }
    span.heading-sub-en{
        display: inline-block;
        font-family: sans-serif;
        font-size: 0.8rem;
        line-height: 1.0;
        letter-spacing: 3px;
        border-bottom: 1px dashed;
        padding: 0 0 4px;
        margin-bottom: 3px;
    }
    span.heading-ja{
        display: block;
        line-height: 1.4;
    }
    .add{
        margin: 0 auto;
        margin-bottom: 16px;
    }
    h3{
        font-size: 1.6rem;
        line-height: 1.0;
        margin: 50px 0;
    }
    .contents{
        width: 75%;
        margin: 0 auto;
    }
    .contents ul{
        margin-bottom: 50px;
    }
    .contents ul li{
        margin-bottom: 30px;
    }
    .contents ul li .contents_img{
        display: block;
    }
    .contents ul li .contents_img .img_item{
        width: 100%;
        margin: 0 auto 16px;
    }
    .contents ul li .contents_img .img_item img{
        width: 100%;
        height: auto;
    }
    h4{
        display: inline-block;
        font-family: sans-serif;
        font-size: 1.2rem;
        line-height: 1.6;
        letter-spacing: 2px;
        border-bottom: 1px dashed #fff;
        margin-bottom: 16px;
    }
    /********** footer **********/
    footer{
        width: 95%;
        margin: 200px auto 0;
    }
    #footer_box{
        font-size: 0.8rem;
        padding: 100px 0 30px;
        text-align: right;
    }
    .footer-item{
        margin: 0 0 30px;
    }
    .footer-item a,
    #copyright{
        color: #888;
    }
    .footer-item a:hover{
        color: #000;
        background:linear-gradient(transparent 60%, #9dcc7b 60%);
    }
    /********** privacy policy **********/
    a.blank[target="_blank"]:after{
        content: url(../img/blank.png);
    }
}
@media screen and (min-width:1081px){
    /********** PC **********/
    /********** header **********/
header{
    display: flex;
    justify-content: space-between;
    width: 100%;
    height: auto;
    position: fixed;
    z-index: 15;
}
#logo_area h1 a{
    display: block;
    padding: 30px 50px;
}
.logo_img{
    width: 80px;
    height: auto;
}
/********** nav **********/
nav ul{
    display: block;
    position: absolute;
    right: 0;
    height: 130px;
    -ms-writing-mode: tb-rl;
    -webkit-writing-mode: vertical-rl;
    writing-mode: vertical-rl;
    margin: 30px 50px;
    font-size: 0.9rem;
}
nav ul li{
    margin-left: 30px;
    padding: 0 10px;
}
.nav_item{
    color: #fff;
    letter-spacing: 3px;
    background-color: #9dcc7b;
    transition: 0.3s ease-in-out;
    padding: 10px 8px;
    border: 1px solid #f5e9d5;
}
.nav_item:hover{
    color: #000;
}
/*
    疑似クラスと疑似要素
    疑似クラス　:hover,:visited...など
    疑似要素　::before,::after...など
    要素とクラスを組み合わせる時はクラスが先！
*/
/********** nav END **********/
/********** main ************/
main{
    width: 100%;
}
/* 斜め背景の調整おまとめ */
#works_area,
#profile_area,
#contact_area,
#pp_area{
    width: 100%;
    padding: 100px 0;
    position: relative;
    top: 176px;
}
#works_area::before{
    content: '';
    position: absolute;
    top: 0;
    bottom: 0;
    left: 0;
    right: 0;
    background-color: #9dcc7b;
    transform: skewY(363deg);
    z-index: -1;
}
#profile_area::before{
    content: '';
    position: absolute;
    top: 0;
    bottom: 0;
    left: 0;
    right: 0;
    background-color: #e4dccf;
    transform: skewY(-7deg);
    z-index: -1;
}
#contact_area::before{
    content: '';
    position: absolute;
    top: 0;
    bottom: 0;
    left: 0;
    right: 0;
    background-color: #9dcc7b;
    transform: skewY(363deg);
    z-index: -1;
}
#pp_area::before{
    content: '';
    position: absolute;
    top: 0;
    bottom: 0;
    left: 0;
    right: 0;
    background-color: #e4dccf;
    transform: skewY(363deg);
    z-index: -1;
}
/* //斜め背景の調整おまとめ// */
#concept_area{
    width: 100%;
    padding-top: 176px;
    text-align: center;
}
#concept_area .vrtcl-contents{
    -webkit-writing-mode: vertical-rl; /* 実装済 */
    -moz-writing-mode: vertical-rl; /* 実装済 */
    -ms-writing-mode: vertical-rl; /* 実装済 */
    writing-mode: vertical-rl;
    display: inline-block;
    text-align: left;
    height: 60vh;/*％やpx指定では縦書きのデザイン崩れが発生*/
    letter-spacing: 3px;
}
#concept_area .vrtcl-contents h2{
    font-size: 2.4rem;
    line-height: 1.8;
    margin: 0;
}
#concept_area .vrtcl-contents p{
    font-size: 1.1rem;
    line-height: 3.0;
    text-indent: 1em;
}
#works_area p,
#profile_area p,
#contact_area p,
#pp_area p{
    font-size: 1.1rem;
    line-height: 1.6;
}
#concept_area h2,
#works_area h2,
#profile_area h2,
#contact_area h2,
#pp_area h2{
    font-size: 2.4rem;
    line-height: 1.0;
    text-align: center;
    margin-bottom: 50px;
}
span.heading-sub-en{
    display: inline-block;
    font-family: sans-serif;
    font-size: 0.8rem;
    line-height: 1.0;
    letter-spacing: 3px;
    border-bottom: 1px dashed;
    padding: 0 0 4px;
    margin-bottom: 3px;
}
span.heading-ja{
    display: block;
    line-height: 1.4;
}
.add{
    margin: 0 auto;
    margin-bottom: 16px;
}
h3{
    font-size: 1.6rem;
    line-height: 1.0;
    margin: 50px 0;
}
.contents{
    width: 75%;
    margin: 0 auto;
}
.contents ul{
    margin-bottom: 50px;
}
.contents ul li{
    margin-bottom: 30px;
}
.contents ul li .contents_img{
    display: flex;
    justify-content: space-between;
}
.contents ul li .contents_img .img_item{
    width: 30%;
}
.contents ul li .contents_img .img_item img{
    width: 100%;
    height: auto;
}
h4{
    display: inline-block;
    font-family: sans-serif;
    font-size: 1.2rem;
    line-height: 1.6;
    letter-spacing: 2px;
    border-bottom: 1px dashed #fff;
    margin-bottom: 16px;
}
/********** footer **********/
footer{
    width: 95%;
    margin: 200px auto 0;
}
#footer_box{
    font-size: 0.8rem;
    padding: 100px 0 30px;
    text-align: right;
}
.footer-item{
    margin: 0 0 30px;
}
.footer-item a,
#copyright{
    color: #888;
}
.footer-item a:hover{
    color: #000;
    background:linear-gradient(transparent 60%, #9dcc7b 60%);
}
/********** privacy policy **********/
a.blank[target="_blank"]:after{
    content: url(../img/blank.png);
}
}