/* ==================================================
   Header
================================================== */

:root {
    --fineseiryu-blue: #00a2e3;
    --fineseiryu-light-blue: #64cfff;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
}

/* WordPress側の余計な指定だけリセット */
.header ul,
.header li {
    margin: 0;
    padding: 0;
    list-style: none;
}

.header img {
    max-width: none;
}

/* ==================================================
   Header base
================================================== */

.header {
    background: #fff;
    text-align: center;
}

.header_line {
    width: 100%;
    height: 8px;
    background: #64cfff;
}

/* ==================================================
   Logo
================================================== */

.header_logo {
    margin: 0 auto;
    padding-top: 20px;
    transition: 0.3s;
}

.header_logo img {
    width: auto;
    height: 60px;
}

.header_logo a {
    display: inline-block;
    line-height: 0;
}

.header_logo a:hover {
    opacity: 0.7;
}

/* ==================================================
   Main navigation
================================================== */

.gronavi {
    display: inline-block;
}

.gronavi ul {
    margin: 0 auto;
    padding: 22px 0;
    list-style: none;
}

.gronavi li {
    display: inline-block;
    margin: 0 auto;
}

.gronavi li img {
    width: 25px;
    height: auto;
    vertical-align: bottom;
}

.gronavi li a {
    position: relative;
    display: inline-block;
    margin: 0 22px;
    padding: 4px 0;
    color: #00a2e3;
    font-size: 18px;
    letter-spacing: 2px;
    line-height: 1;
    text-decoration: none;
    transition: 0.3s;
}

.gronavi li a::after {
    position: absolute;
    bottom: -2px;
    left: 50%;
    width: 0;
    height: 2px;
    border-radius: 4px;
    background-color: #00a2e3;
    content: "";
    transform: translateX(-50%);
    transition: 0.3s;
}

.gronavi li a:hover::after {
    width: 100%;
}

/* ==================================================
   Blog / SNS navigation
================================================== */

.gronavi_fbbtn {
    display: inline-block;
}

.gronavi_fbbtn ul {
    display: inline-block;
    margin: 0 auto;
    padding: 22px 0;
    list-style: none;
}

.gronavi_fbbtn li {
    display: inline-block;
    margin: 0 auto;
}

.gronavi_fbbtn li img {
    width: 25px;
    height: auto;
    vertical-align: bottom;
}

.gronavi_fbbtn li a {
    position: relative;
    display: inline-block;
    margin: 0 12px;
    padding: 4px 0;
    color: #00a2e3;
    font-size: 18px;
    letter-spacing: 2px;
    line-height: 1;
    text-decoration: none;
    transition: 0.3s;
}

.gronavi_fbbtn li a::after {
    position: absolute;
    bottom: -2px;
    left: 50%;
    width: 0;
    height: 2px;
    border-radius: 4px;
    background-color: #00a2e3;
    content: "";
    transform: translateX(-50%);
    transition: 0.3s;
}

.gronavi_fbbtn li a:hover::after {
    width: 100%;
}

/* BLOGだけ元画像サイズ */
.gronavi_fbbtn li:first-child img {
    width: 18px;
}

/* ==================================================
   Tablet
================================================== */

@media screen and (max-width: 823px) {

    .gronavi li img {
        width: 25px;
        height: auto;
        vertical-align: bottom;
    }

    .gronavi li a {
        margin: 0 12px;
        padding: 4px 0;
        font-size: 18px;
        letter-spacing: 2px;
    }

    .gronavi_fbbtn {
        display: block;
    }

    .gronavi_fbbtn ul {
        display: inline-block;
        margin: 0 auto;
        padding: 0 0 22px;
    }

    .gronavi_fbbtn li {
        display: inline-block;
        margin: 0 auto;
    }

    .gronavi_fbbtn li img {
        width: 25px;
        height: auto;
        vertical-align: bottom;
    }

    .gronavi_fbbtn li:first-child img {
        width: 18px;
    }

    .gronavi_fbbtn li a {
        margin: 0 12px;
        padding: 4px 0;
        font-size: 18px;
        letter-spacing: 2px;
    }
}

/* ==================================================
   Smartphone
================================================== */

@media screen and (max-width: 480px) {

    .header_logo img {
        height: 50px;
    }

    .gronavi {
        max-width: 400px;
        margin: 0 auto;
    }

    .gronavi ul {
        display: inline-block;
        margin: 0 auto;
        padding: 22px 0 10px;
    }

    .gronavi li {
        display: inline-block;
    }

    .gronavi li img {
        width: 24px;
        height: auto;
        vertical-align: bottom;
    }

    .gronavi li a {
        margin: 0 9px;
        padding: 4px 0;
        font-size: 16px;
        letter-spacing: 2px;
    }

    .gronavi_fbbtn {
        display: block;
    }

    .gronavi_fbbtn ul {
        display: inline-block;
        margin: 0 auto;
        padding: 0 0 22px;
    }

    .gronavi_fbbtn li {
        display: inline-block;
        margin: 0 auto;
    }

    .gronavi_fbbtn li img {
        width: 24px;
        height: auto;
        vertical-align: bottom;
    }

    .gronavi_fbbtn li:first-child img {
        width: 18px;
    }

    .gronavi_fbbtn li a {
        margin: 0 12px;
        padding: 4px 0;
        font-size: 16px;
        letter-spacing: 2px;
    }
}