@charset "UTF-8";

body {
    font-family: Arial, "Hiragino Kaku Gothic ProN", "Hiragino Sans", "Meiryo",
        sans-serif, Helvetica;
    font-size: 16px;
    color: #333;
}

a {
    text-decoration: none;
    transition: 0.3s;
}

a:hover {
    opacity: 0.8;
}

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

a:hover {
    opacity: .8;
}

.main-concept-content .blog-content-inner {
    max-width: 1170px;
    margin: 0 auto;
    padding: 0 30px;
}

.header {
    padding: 50px 0;

}



.header .header-logo {
    width: 280px;
    margin: 0 auto;
}

/* kv */

.kv-img {
    width: 100vw;
}

/* nav */

.nav {
    padding: 20px 0;
}

.nav .nav-list {
    list-style: none;
    display: flex;
    justify-content: center;
    gap: 80px;
}

.nav .nav-list .nav-item {
    font-size: 18px;
    line-height: 1;
    letter-spacing: 0.1em;
    margin-right: 80px;
    color: #333;
}


.nav .nav-list .nav-item:last-child {
    margin-right: 0;
}

.nav__item {
    font-size: 18px;
    line-height: 1;
    letter-spacing: 0.1em;
    margin-right: 80px;
}


/* main content */

.main-concept-wrap {
    padding: 50px 0;
    max-width: 1170px;
    margin: 0 auto;
    padding: 0 30px;
    margin-top: 30px;
}

.main-concept-wrap>.main-concept-content {
    display: flex;
    align-items: center;
}

.main-concept-wrap .main-concept-img-content {
    width: 50%;
}

.main-concept-wrap .main-concept-txt-content {
    width: 50%;
    padding-right: 20px;
    padding-left: 40px;
}

.main-concept-wrap .main-concept-ttl {
    font-size: 16px;
    font-weight: 300;
    letter-spacing: 0.1em;
    margin-bottom: 0px;
}

.main-concept-wrap .main-concept-heading-txt {
    font-size: 32px;
    font-weight: bold;
    line-height: 1.5;
    letter-spacing: 0.1em;
    color: #24a8bf;
    margin-bottom: 30px;

}

.main-concept-wrap .main-content-txt {
    font-size: 16px;
    line-height: 1.8;
    letter-spacing: 0.1em;
}



/* blog */



.blog-content-wrap {
    padding: 50px 0;
    margin-top: 60px;
}

.blog-content-inner {
    max-width: 1170px;
    margin: 0 auto;
    padding: 0 30px;
}

.blog-content-ttl {
    font-family: Arial;
    font-weight: bold;
    font-size: 32px;
    letter-spacing: 0.08em;
    line-height: 32px;
    text-align: center;
    color: #24a8bf;
}

.blog-content-ttl-txt {
    font-family: "Hiragino Sans";
    font-weight: 600;
    font-size: 13px;
    letter-spacing: 0.03em;
    line-height: 13px;
    text-align: center;
    margin-top: 10px;
    margin-bottom: 30px;
}

.blog-content-img {
    max-width: 100%;
    height: auto;
    vertical-align: bottom;
}





.blog-content-wrap .blog-content-inner .blog-content-box:hover {
    opacity: 0.8;
}

.blog-content-wrap .blog-content-inner .blog-content-img {
    margin-bottom: 12px;
}

.blog-content-wrap .blog-content-inner .blog-content-box-ttl {
    font-size: 15px;
    line-height: 1.6;
    font-weight: bold;
}

.blog-content-wrap .blog-content-inner .blog-content-box-date {
    font-size: 12px;
    margin-top: 6px;
}

.blog-content-wrap .blog-content-inner .blog-content-box {
    width: calc((100% - 60px) / 3);
    margin-right: 30px;
    margin-bottom: 30px;

}

.blog-content-wrap .blog-content-inner .blog-content-box:nth-child(3n) {
    margin-right: 0;
}

.blog-content-wrap .blog-content-inner {
    display: flex;
    flex-flow: wrap;
}

/* blog btn */

.blog-btn {
    display: block;
    position: relative;
    width: 220px;
    font-size: 15px;
    font-weight: bold;
    color: #24a8bf;
    line-height: 1;
    text-align: center;
    margin: 0 auto;
    padding: 18px 0;
    transition: opacity 0.3s;
    border: 1px solid #24a8bf;
    border-radius: 3px;
}

.blog-btn::after {
    display: block;
    content: "";
    position: absolute;
    top: 50%;
    right: 1em;
    width: 5px;
    height: 9px;
    transform: translateY(-50%);
    background-image: url("./images/icon_arrow-right.jpg");
    background-repeat: no-repeat;
    background-size: 5px 9px;
}

/* footer */

.footer {
    padding: 70px 0 30px;
    background-color: #000;
}

.footer .footer-logo-img {
    width: 180px;
    margin: 0 auto;
    margin-bottom: 50px;
}

.footer .copyright {
    font-size: 12px;
    letter-spacing: 0.05em;
    color: #8b8b8b;
    text-align: center;
}



/* レスポンシブ */

@media screen and (max-width: 767px) {
    body {
        font-size: 15px;
        line-height: 1.7;
    }



    /* ヘッダー */
    .header {
        padding: 30px 0;
    }

    .header .header-logo {
        width: 172px;
        margin: 0 auto;
    }

    .nav {
        padding: 10px 0;
        margin-left: -30px;

    }

    .nav .nav-list .nav-item {
        font-size: 16px;
        margin-right: 50px;

    }

    .nav .nav-list {
        gap: 50px;
    }

    /* コンセプト */
    .main-concept-wrap {
        padding: 40px 0;
        padding: 0 20px;
    }

    .main-concept-wrap .main-concept-content {
        flex-direction: column;
    }

    .main-concept-wrap .main-concept-img-content {
        width: 100%;
        margin-bottom: 30px;
    }

    .main-concept-wrap .main-concept-txt-content {
        width: 100%;
        padding-right: 0;
        padding-left: 20px;
    }

    .main-concept-wrap .main-concept-ttl {
        font-size: 15px;
        margin-bottom: 15px;
    }

    .main-concept-wrap .main-concept-heading-txt {
        font-size: 26px;
        line-height: 1.5;
        margin-bottom: 20px;
    }

    .main-concept-wrap .main-content-txt {
        font-size: 15px;
        line-height: 1.8;
    }

    /* blog */
    .blog-content-wrap .blog-content-ttl {
        font-size: 30px;
        margin-bottom: 5px;
    }

    .blog-content-wrap .blog-content-ttl-txt {
        font-size: 12px;
        margin-top: 0px;

    }

    .blog-content-wrap .blog-content-inner {
        display: block;
    }

    .blog-content-wrap .blog-content-inner .blog-content-box {
        width: 100%;
        margin-right: 0;
        margin-bottom: 20px;
    }

    .blog-content-wrap.blog-content-inner .blog-content-img {
        margin-bottom: 10px;
    }

    .blog-content-wrap .blog-content-inner .blog-content-box-date {
        margin-top: 2px;
    }

    .blog-btn {
        font-size: 14px;
        width: 85%;



    }

    .blog-btn:hover {
        opacity: 1;
    }



    /* フッター */
    .footer {
        padding: 60px 0 20px;
    }

    .footer .footer-logo {
        width: 100px;
        margin: 0 auto;
        margin-bottom: 10px;

    }

    .footer .copyright {
        font-size: 10px;

    }

}