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

/*---------------------------------
reset
---------------------------------*/
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

a,
a::before,
a::after {
    text-decoration: none;
    color: inherit;
}

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

h1,
h2,
h3,
h4,
h5,
h6 {
    font-size: 100%;
    line-height: 1.4;
    font-weight: normal;
}

ul,
li {
    list-style-type: none;
}

/*---------------------------------
structure
---------------------------------*/
::selection {
    background: #41b1de;
    color: #fff;
}

body {
    color: #1a1a1a;
    display: flex;
    flex-direction: column;
    font-family: 'ヒラギノ角ゴ Pro W3', 'Hiragino Kaku Gothic Pro', 'メイリオ', 'Meiryo', '游ゴシック', 'Yu Gothic', 'ＭＳ Ｐゴシック', 'MS PGothic', sans-serif;
    font-feature-settings: "palt";
    font-size: 18px;
    letter-spacing: 0.08em;
    line-height: 1.6;
}

.inr {
    margin: 0 auto;
    width: 85%;
}
.inr .inr {
    width: 94%;
}

.contents_wrap{
    display: grid;
    grid-template-columns: 300px 1fr;
}
.side{
    background-color: #fff;
    order: 1;
}
.contents{
    background-color: #f8f9f9;
    min-height: 100vh;
    order: 2;
}

/*hover*/
@media (hover: hover) and (pointer: fine) {
    a,
    a img {
        transition: .3s all;
    }
}

/*responsive*/
@media screen and (max-width: 899px) {
    body {
        font-size: 16px;
    }
    .contents_wrap{
        grid-template-columns: 1fr;
    }
    .contents{
        order: 1;
    }
}

@media screen and (max-width: 499px) {
    .inr .inr {
        width: 100%;
    }
}


/*---------------------------------
element
---------------------------------*/
/*margin*/
.mt10 {
    margin-top: 10px;
}

.mt20 {
    margin-top: 20px;
}

.mt30 {
    margin-top: 30px;
}

.mt40 {
    margin-top: 40px;
}

.mt60 {
    margin-top: 60px;
}

.mt80 {
    margin-top: 80px;
}

.mb10 {
    margin-bottom: 10px;
}

.mb20 {
    margin-bottom: 20px;
}

.mb30 {
    margin-bottom: 30px;
}

.mb40 {
    margin-bottom: 40px;
}

.mb60 {
    margin-bottom: 60px;
}

.mb80 {
    margin-bottom: 80px;
}

/*width*/
.w100 {
    width: 100%;
}

.w50 {
    width: 50%;
}

/*text*/
.fz80 {
    font-size: 80%;
}

.fz90 {
    font-size: 90%;
}

.fz110 {
    font-size: 110%;
}

.fz120 {
    font-size: 120%;
}

.fz140 {
    font-size: 140%;
}

.fz160 {
    font-size: 160%;
}

.fz180 {
    font-size: 180%;
}

.t_center {
    text-align: center;
}
.t_right {
    text-align: right;
}

.t_light{
    color: #a9aeb3;
}
.t_color1{
    color: #41b1de;
}

.f_bold {
    font-weight: bold;
}

.primary {
    color: #f84600;
}

.underline {
    text-decoration: underline;
}

/*layout*/
.flex_box {
    display: flex;
    column-gap: .6em;
    row-gap: .4em;
}

.flex_center {
    justify-content: center;
}

.flex_right {
    justify-content: flex-end;
}

.flex_wrap {
    flex-wrap: wrap;
}

.grid_box {
    display: grid;
    gap: 20px;
}
.two_grid{
    grid-template-columns: 1fr 1fr;
    gap: 30px;
}

.btn{
    background-color: #41b1de;
    border-radius: 4px;
    color: #fff;
    display: inline-block;
    line-height: 1.4;
    padding: 10px 30px;
    text-align: left;
}
.btn_border{
    border-radius: 4px;
    display: inline-block;
    line-height: 1.4;
    border: 1px solid #1a1a1a;
    padding: 10px 30px;
    text-align: left;
}
.btn.arrow{
    position: relative;
    padding-right: 36px;
}
.btn.arrow::before{
    content: '';
    background-color: #fff;
    width: 20px;
    height: 1px;
    display: block;
    margin: auto;
    position: absolute;
    bottom: 21px;
    right: 10px;
    transition: all .3s;
}
.btn.arrow::after{
    content: '';
    background-color: #fff;
    width: 10px;
    height: 1px;
    display: block;
    position: absolute;
    bottom: 24px;
    right: 8px;
    transform: rotate(45deg);
    transition: all .3s;
}

.back{
    position: relative;
    padding-left: 36px;
}
.back::before{
    content: '';
    background-color: #1a1a1a;
    width: 26px;
    height: 1px;
    display: block;
    margin: auto;
    position: absolute;
    bottom: 6px;
    left: 2px;
    transition: all .3s;
}
.back::after{
    content: '';
    background-color: #1a1a1a;
    width: 10px;
    height: 1px;
    display: block;
    position: absolute;
    bottom: 10px;
    left: 0px;
    transform: rotate(-45deg);
    transition: all .3s;
}

hr{
    border: none;
    border-top: 1px solid #e0e1e1;
}



/*hover*/
@media (hover: hover) and (pointer: fine) {
    .btn:hover{
        background-color: #f84600;
    }
    .btn_border:hover{
        border-color: #41b1de;
        background-color: #41b1de;
        color: #fff;
    }

    .btn:hover.arrow::before{
        right: 7px;
    }
    .btn:hover.arrow::after{
        right: 5px;
    }

    .back:hover{
        opacity: .6;
    }
    .back:hover::before{
        left: -3px;
    }
    .back:hover::after{
        left: -5px;
    }
}

/*responsive*/
@media screen and (max-width: 1199px) {
    .two_grid.sp_break{
        grid-template-columns: 1fr;
    }
}



/*---------------------------------
side
---------------------------------*/
.side_inr{
    padding: 20px 0;
    position: -webkit-sticky;
    position: sticky;
    top: 0;
}
.side_ttl{
    color: #41b1de;
    padding: 0 20px;
}
.gnav{
    font-size: 80%;
    padding: 0 20px;
}
.gnav li{
    border-bottom: 1px solid #c9e6e6;
    padding: 10px 0;
}
.gnav a{
    display: block;
}

#menu{
    display: none;
}

/*hover*/
@media (hover: hover) and (pointer: fine) {
    .gnav a:hover{
        color: #41b1de;
    }
}

/*responsive*/
@media screen and (max-width: 899px) {
    #menu{
    opacity: 0;
    visibility: hidden;
    position: absolute;
    }

    .menu-btn {
    background: #fff;
    border: 1px solid #41b1de;
    border-radius: 50%;
    display: block;
    width: 50px;
    height: 50px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    position: fixed;
    top: 10px;
    right: 10px;
    z-index: 999;
    }
    .menu-btn span,
    .menu-btn span::before,
    .menu-btn span::after {
    position: absolute;
    display: block;
    content: '';
    width: 22px;
    height: 2px;
    background-color: #41b1de;
    transition: all 0.5s;
    }
    .menu-btn span::before {
    top: -6px;
    }
    .menu-btn span::after {
    bottom: -6px;
    }
    #menu:checked + .menu-btn span {
    background-color: transparent;
    }
    #menu:checked + .menu-btn span::before {
    top: 0;
    transform: rotate(45deg);
    }
    #menu:checked + .menu-btn span::after {
    bottom: 0;
    transform: rotate(-45deg);
    }

    .side{
        position: fixed;
        top: 0;
        right: -100vw;
        height: 100vh;
        max-width: 90vw;
        transition: all .5s;
    }
    .side_inr{
        height: 100vh;
        overflow-y: scroll;
        position: relative;
    }
    
    #menu:checked ~ .contents_wrap .side{
        display: block;
        right: 0;
    }
}


/*---------------------------------
header
---------------------------------*/
.main_v{
    background-color: #099fdb;
    border-radius: 0 0 0 40px;
    min-height: 60vh;
    overflow: hidden;
    position: relative;
}
.main_v .main_img{
    width: 100%;
    height: 100%;
    position: absolute;
}
.main_v .main_img img{
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: right bottom;
}
.main_subttl{
    filter: drop-shadow(0 0 5px rgba(2, 80, 157, 0.6));
    padding-top: 60px;
    width: 80%;
    max-width: 538px;
}
.main_ttl{
    font-size:min(7.6vw,120px);
    font-weight: bold;
    color: #fff;
    filter: drop-shadow(0 0 5px rgba(2, 80, 157, 0.6));
}
.main_txt{
    font-size: 110%;
    font-weight: bold;
    color: #fff;
    filter: drop-shadow(0 0 5px rgba(2, 80, 157, 0.6));
    padding-bottom: 120px;
}

.article_v{
    border-radius: 0 0 0 40px;
    line-height: 1.0;
    font-size: 0;
    overflow: hidden;
}

/*responsive*/
@media screen and (max-width: 899px) {
    .main_ttl{
        font-size:min(12vw,120px);
    }
    .main_txt{
        font-size: 100%;
    }
}

/*---------------------------------
main
---------------------------------*/

.article_list{
    gap: 40px;
}

.article_list figure{
    border-radius: 4px;
    line-height: 1.0;
    overflow: hidden;
}

.ttl_wrap{
    display: flex;
    gap: 10px;
    line-height: 1.4;
}

.ttl_wrap .num{
    aspect-ratio: 1 / 1;
    background-color: #fb4a22;
    border-radius: 50%;
    color: #fff;
    display: block;
    font-weight: bold;
    letter-spacing: .01em;
    line-height: 1.1;
    text-align: center;
    padding: 0.6em 1em;
    word-break: keep-all;
}

.ttl_wrap > div:nth-child(2){
    margin-top: 6px;
}

.more_arrow{
    padding: 0 1.0em 5px 0;
    position: relative;
}

.more_arrow::before{
    content: '';
    background-color: #1a1a1a;
    width: 100px;
    height: 1px;
    display: block;
    position: absolute;
    bottom: 0;
    right: 0;
    transition: all .3s;
}
.more_arrow::after{
    content: '';
    background-color: #1a1a1a;
    width: 16px;
    height: 1px;
    display: block;
    position: absolute;
    bottom: 6px;
    right: -3px;
    transform: rotate(45deg);
    transition: all .3s;
}


.ttl_border_b:after{
    content: '';
    background-color: #1a1a1a;
    width: 8em;
    height: 1px;
    display: block;
    margin: 20px 0 30px;
}
.ttl_line{
    position: relative;
    padding-left: 1.8em;
}
.ttl_line::before{
    content: '';
    background-color: #41b1de;
    width: 1.4em;
    height: 1px;
    display: block;
    position: absolute;
    top: .7em;
    left: 0;
}


.article{
    line-height: 1.8;
    text-align: justify;
    word-break: break-all;
}
.article .ttl_wrap{
    font-size: 140%;
}
.article .ttl{
    margin-top: 5px;
}
.article .grid_box figure img{
    object-fit: cover;
    width: 100%;
    height: 100%;
}

.article figure{
    border-radius: 4px;
    line-height: 1.0;
    font-size: 0;
    overflow: hidden;
}
.article img{
    border-radius: 4px;
}
.article figcaption{
    font-size: 1.0rem;
    line-height: 1.4;
}
.article .photo_m{
    max-width: 600px;
    margin-inline: auto;
}

.bg_box{
    background-color: #fff;
    border-radius: 4px;
    padding: 40px 40px;
}

/*hover*/
@media (hover: hover) and (pointer: fine) {
    .article_list a:hover{
        color: #41b1de;
    }
    .article_list a:hover figure img{
        transform: scale(1.1);
    }

    .article_list a:hover .more_arrow::before{
        background-color: #41b1de;
        right: -8px;
    }
    .article_list a:hover .more_arrow::after{
        background-color: #41b1de;
        right: -10px;
    }
}

/*responsive*/
@media screen and (max-width: 499px) {   
    .article .ttl_wrap{
        font-size: 100%;
    } 
    .bg_box{
        padding: 20px 20px;
    }
}


/*---------------------------------
footer
---------------------------------*/
.copyright{
    padding: 20px 20px;
}

#pagetop{
    background-color: rgb(65, 177, 222, .5);
    border-radius: 4px;
    display: block;
    width: 70px;
    height: 70px;
    position: fixed;
    right: 10px;
    bottom: 10px;
    transition: all .3s;
}
#pagetop::after{
    content: '';
    width: 20px;
    height: 20px;
    border-top: solid 4px #ddf2fb;
    border-right: solid 4px #f5fcff;
    position: absolute;
    left: 24px;
    top: 26px;
    transform: rotate(-45deg);
}


@media print {
    .contents_wrap {
        grid-template-columns: 1fr;
    }
    .side{
        display: none;
    }
}