@charset "UTF-8";
/*=====================
common
=====================*/

html{
    font-size: 62.5%;
}

body{
    font-family:
    "Zen Kaku Gothic New";
    font-style: normal;
    color: #000;
    background-color: #fff;
    line-height: 1.5;
}

img{
    max-width: 100%;
    height: auto;
}

/*=====================
header
=====================*/
.header{
    background-image: url(../images/mainImage.png);
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;
    height: 356px;
}
.header__topicGroup{
    padding-left: 20px;
}
.header__topic{
    color: #FFF;
    font-family: "Crimson Text";
    font-size: 3.6rem;
    font-weight: 700;
}
.header__txt{
    color: #FFF;
    display: inline-flex;
    align-items: center;
    font-size: 1.4rem;
    font-weight: 500;
}

.header__txt::before,
.header__txt::after{
    content: "";
    display: inline-block;
    width: 50px;
    height: 1px;
    background-color: #FFF;
}

.article__txt{
    background: rgba(255, 255, 255, 0.50);
    padding:  11px 0px 12px 20px;
    margin-top: 50px;
    font-size: 1.3rem;
    font-weight: 500;
}

.article__txt p:last-of-type{
    margin-top: 10px;
}

/* .header__logo{
    width: 30px;
    height: auto;
} */

.header__btn{
    width: 25px;
}

.header__top{
    display: flex;
    padding:  15px 20px;
    /* margin-top: -45px; */
    justify-content: space-between;
}

.pc-header__top{
    display: none;
}

/* header pc */
@media screen and (min-width:769px){
    .header{
        height: 800px;
    }

    .header__topicGroup{
        padding-left: 103px;
    }

    .header__topic{
        font-size: 12.8rem;
        font-weight: 700;
    }   
    
    .header__txt{
        font-size: 3.2rem;
        font-weight: 700;
    }

    .header__txt::before,
    .header__txt::after{
        width: 150px;
    }

    .article__txt{
        font-size: 32px;
        font-weight: 700;
        padding: 31px 0px 43px 102px;
    }

    .article__txt p:last-of-type{
        margin-top: 50px;
    }

}

/*======= nav =======*/

.nav{
    background-color: #eceaea;
    width: 100%;
    height: 100vh;
    position: fixed;
    top: 0;
    left: 0;
    z-index: 100;
    transform: translateX(-100%);
    transition: transform 0.4s;
}
.nav__box{
    display: flex;
    flex-direction: column;
    margin: 50px 50px;
    gap: 50px;
}

.nav__header{
    display: flex;
    justify-content: end;
    margin: 20px 30px;
}
.close{
    width: 30px;
}
.nav__item p{
    margin: 0 auto;
    font-size: 2rem;
    font-weight: 500;
}

.nav__item{
    display: flex;
    
}

.nav.active{
    transform: translateX(0);
}

.pc-header__topic{
    display: none;
}
/* 
.header__top{
    display: flex;
    width: 100%;
    margin: 0 auto;
    position: fixed;
    top: 0;
    left: 0;
    z-index: 100;
    width: 100%;
} */

/* nav pc */

@media screen and (min-width:769px){
    
    .header__btn{
        display: none;
    }

    .header__top{
        padding: 0;
    }
    .pc-header__top{
        display: flex;
        width: 100%;
        align-items: center;
        justify-content: space-between;
        padding: 20px 5% 20px;
        background-color: rgba(241, 243, 249, 0.5);
    }

    .pc-header__top a{
        font-size: 2.8rem;
        margin:  0 40px;
        font-family: Crimson Text;
    }
}
/*=====================
footer
=====================*/
.btn{
    display: flex;
    width: 250px;
    padding: 6px 6px ;
    justify-content: center;
    align-items: center;
    border-radius: 10px;
    border: 1px solid #001D8B;
    background-color: #001D8B;
    color: #fff;
    font-size: 1.4rem;
    font-weight: 500;
    line-height: normal;
    margin: 10px auto 20px;
}

.footer{
    padding: 20px 5% 20px ;
}
.footer__comment{
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
}
.footer__comment::before{
    content: "";
    width: 20px;
    height: 1px;
    background-color: #333333;
    display: block;
    margin-right: 10px;
}

.footer__comment::after{
    content: "";
    width: 20px;
    height: 1px;
    background-color: #333333;
    display: block;
    margin-left: 10px;
}

.footer__topic{
    font-size: 1.4rem;
    font-weight: 400;
}

.copy{
    font-size: 1rem;
    font-weight: 400;
}

/* footer pc */
@media screen and (min-width:769px){
    .footer{
        padding: 80px 140px 0 140px;
    }

    .footer__topic{
        font-size: 2.4rem;
        font-weight: 700;
    }

    .copy{
        font-size: 1.2rem;
    }

    .footer__comment{
        font-size: 2rem;
    }

    .btn{
        font-size: 2rem;
        width: 380px;
    }
}