/* layout */
.font-hiragino{
    font-family: '游ゴシック体', YuGothic, '游ゴシック', 'Yu Gothic', 'ヒラギノ角ゴ Pro W3', 'Hiragino Kaku Gothic Pro', Osaka, 'MS PGothic', 'ＭＳ Ｐゴシック', 'MS Gothic', 'Helvetica Neue', Arial, sans-serif;
}

/* title_and_lead */
.main-title{
    margin-top: 20px;
    font-size: 2rem;
}
.main-introduction{
    padding-top: 20px;
    line-height: 1.8;
    font-size: 1.5rem;
    font-weight: bold;
}
.main-introduction br{
    display: none;
}
.heading-2{
    margin-bottom: 20px;
    padding: 4px 0;
    background: #455f8c;
    text-align: center;
    color: #fff;
    font-size: 2.2rem;
    font-weight: bold;
}
.summary-text{
    position: relative;
    font-size: 1.5rem;
    padding-bottom: 20px;
}

.heading-3{
    margin-bottom: 20px;
    padding-bottom: 8px;
    border-bottom: 2px solid #455f8c;
    font-size: 1.8rem;
    font-weight: bold;
}

.heading-3 span{
    font-size: 1.4rem;
    display: block;
}

@media (min-width: 768px){
    .main-introduction{
        text-align: center;
        font-size: 1.8rem;
    }
    .main-introduction br{
        display: block;
    }

    .heading-2{
        font-size: 2.6rem;
    }

    .heading-3{
        font-size: 2rem;
    }

    .heading-3 span{
        font-size: 1.5rem;
        display: inline;
    }
}


/* table of contents */
.block-toc__wrap{
    margin: 50px 0 60px;
}
.block-toc__title{
    margin-bottom: 10px;
    text-align: center;
    font-weight: bold;
    font-size: 2rem;
}
.block-toc__list{
    display: flex;
    flex-wrap: wrap;
    margin: auto;
    gap: 16px;
}
.block-toc__list > li{
    width: calc((100% - 16px) / 2);
}
.block-toc__list > li a{
    display: flex;
    flex-direction: column;
    gap: 5px;
    align-items: center;
    justify-content: space-between;
    position: relative;
    border: 1px solid #455f8c;
    border-radius: 5px;
    padding: 10px 5px;
    height: 100%;
    box-sizing: border-box;
    color: #222;
    transition: all 0.2s;
    font-size: 2rem;
    font-weight: bold;
    text-align: center;
}
.block-toc__list > li a:after{
    content: '';
    transform: translateY(-25%) rotate(45deg);
    width: 6px;
    height: 6px;
    margin-left: 10px;
    border-bottom: 2px solid #455f8c;
    border-right: 2px solid #455f8c;
    transition: transform .5s;
}
.block-toc__list > li a:hover{
    background: #efefef;
}
@media (min-width: 768px){
    .block-toc__list{
        justify-content: center;
        width: 700px;
        max-width: 100%;
    }
    .block-toc__list > li{
        width: calc((100% - 16px) / 2);
    }
    .block-toc__list > li a{
        padding: 10px;
        border-width: 2px;
    }
}

/* product_list */
.block-product__list{
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    padding-bottom: 40px;
}
.block-product__list > li{
    display: flex;
    flex-direction: column;
    background: #fff;
    overflow: hidden;
    border-bottom: 1px solid #ccc;
}
.block-items__item__link{
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    height: 100%;
    padding: 10px 0;
    transition:all 0.2s;
}
.block-items__item__link:hover{
    opacity: 0.7;
}
.block-items__item__img{
    text-align: center;
    width: 125px;
    padding: 0;
}
.block-items__item__img img{
    position: relative;
    vertical-align: bottom;
}
.block-items__item__info{
    display: flex;
    flex-direction: column;
    width: calc(100% - 135px);
}
.block-items__item__name{
    margin-top: 0;
    line-height: 1.4;
    text-decoration: none;
    font-size:1.4rem;
    font-weight: bold;
}
.block-items__item__price{
    display: flex;
    align-items: baseline;
    justify-content: start;
    gap: 10px;
    margin: 0;
}
.block-items__item__price--unit{
    font-size: 1.7rem;
}
.block-items__item__price--count{
    font-size: 1.2rem;
}
.block-product__list > li .block-items__item__tags {
    display: flex;
    flex-wrap: wrap;
    justify-content: start;
    gap: 5px;
}
.block-product__list > li .block-items__item__tag{
    font-size: 1.1rem;
    color: #222;
    border-radius: 4px;
    padding: 4px 8px 4px 24px;
    align-items: center;
    line-height: 1;
    border: 1px solid #ccc;
    margin: 0;
}
.block-product__list > li .block-items__item__tag:before{
    width: 13px;
    height: 11px;
    left: 8px;
}
.block-product__desc{
    color: #6c6c6c;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 3;
    overflow: hidden;
    line-height: 1.4;
    font-size: 1.2rem;
    margin-top: auto;
    margin-bottom: 5px;
}
.block-product__link-btn{
    display: none;
}
@media (min-width: 768px) {
    .block-product__list > li{
        width: calc((100% - 48px) / 4);
        border-bottom: none;
    }
    .block-product__list > .col_2{
        width: calc((100% - 16px) / 2);
    }

    .block-product__list{
        gap: 24px 16px;
    }
    .block-items__item__link{
        flex-direction: column;
        border: 1px solid #ccc;
        padding: 12px;
        border-radius: 8px;
    }
    .block-items__item__img{
        width: 100%;
    }
    .col_2 img{
        width: 60%;
    }
    .col_2 .block-items__item__name{
        font-size: 1.7rem;
    }
    .col_2 .block-items__item__price--unit{
        font-size: 2.2rem;
    }
    .col_2 .block-product__link-btn {
        font-size: 1.8rem;
    }
    .block-items__item__info{
        width: 100%;
    }
    .block-items__item__name{
        display: block;
        height: 42px;
        word-break: break-word;
        display: -webkit-box;
        -webkit-box-orient: vertical;
        -webkit-line-clamp: 2;
        overflow: hidden;
        font-size: 1.39rem;
    }
    .block-items__item__price{
        display: flex;
        gap: 10px;
    }
    .block-items__item__price--unit{
        font-size: 1.5rem;
    }
    .block-items__item__price--count{
        font-size: 1.2em;
    }
    .block-product__desc{
        -webkit-line-clamp: 4;
    }
    .block-product__link-btn{
        width: 100%;
        display: block;
        position: relative;
        background: #455f8c;
        margin: auto auto 0;
        padding: 6px 10px;
        text-align: center;
        border-radius: 4px;
        color: #fff;
        font-size: 1.4rem;
    }
    .block-product__link-btn:after {
        content: "";
        position: absolute;
        top: 46%;
        right: 15px;
        width: 7px;
        height: 7px;
        border-bottom: 2px solid;
        border-right: 2px solid;
        border-color: #fff;
        transform: rotate(-45deg) translate(0, -50%);
    }
}

/* sidenavi */
#side_navi{
    display: none;
}
@media screen and (min-width: 1400px) and (min-height: 550px){
    /* 初期表示はサイドメニューが表示された状態 */
    #side_navi {
        position: fixed;
        display: block;
        z-index: 100;
        right: -130px; 
        bottom: 80px;
        transition: all 0.3s ease; 
    }
    /* 非表示時のスタイル */
    #side_navi.hidden {
        right: -130px;
    }
    #side_navi.visible{
        right: -130px; 
    }
    #side_navi.visible.hidden{
        right: 0; 
    }
    /* トグルボタンのスタイル */
    .toggle-btn {
        position: absolute;
        left: -34px;
        top: 50%;
        transform: translateY(-50%);
        background-color: #efefef;
        border: 1px solid #dfdfdf;
        border-radius: 5px 0 0 5px;
        border-right: none;
        padding: 25px 10px;
        cursor: pointer;
        z-index: 1000;
        transition: all 0.3s ease;
        font-size: 1.4rem;
    }
    #side_navi .toggle-btn {
        opacity: 0;
        cursor: default;
    }
    #side_navi.visible .toggle-btn,
    #side_navi.visible.hidden .toggle-btn{
        opacity: 1;
        cursor: pointer;
    }
    .item_navi {
        position: relative;
        border-radius: 10px 0 0 10px;
        width: 130px;
        padding: 15px 10px;
        text-align: center;
        background: #efefef;
        border: 1px solid #dfdfdf;
        border-right: none;
    }
    .snav li {
        margin-top: 7px;
        position: relative;
    }
    .snav li a {
        display: flex;
        align-items: center;
        position: relative;
        color: #222;
        padding: 2px 2px 2px 14px;
        min-height: 30px;
        border: 1px solid #b3b3b3;
        border-radius: 5px;
        background: #fff;
        line-height: 1.3;
        font-size: 1rem;
        font-weight: bold;
        text-align: left;
        transition: all 0.2s;
    }
    .snav li a:before{
        content: "";
        position: absolute;
        top: 39%;
        left: 5px;
        color: #bf0000;
        border-style: solid;
        border-color: transparent;
        border-width: 0.35em 0.5em;
        border-right-color: currentColor;
        border-left: 0;
    }
    .snav li a:hover {
        color: #fff;
        background: #bf0000;
    }
    .snav li a.active {
        color: #fff;
        background: #bf0000;
    }
    .section-navi{
        margin-top: -100px;
        padding-top: 110px;
    }
}
@media screen and (min-width: 1500px) and (min-height: 650px){
    #side_navi {
        right: -150px; 
    }
    /* 非表示時のスタイル */
    #side_navi.hidden {
        right: -150px;
    }
    #side_navi.visible{
        right: -150px; 
    }
    .item_navi {
        width: 150px;
        padding: 15px 10px;
    }
    .snav li {
        margin-top: 7px;
    }
    .snav li a {
        padding: 4px 5px 4px 17px;
        min-height: 35px;
        font-size: 1.2rem;
    }
}

/* その他一覧ボタン */
.all-item_btn {
    margin: 0 auto 65px;
}
.all-item_btn a {
    display: flex;
    justify-content: center;
    position: relative;
    padding: 20px 30px 20px 15px;
    border: 3px solid #455f8c;
    border-radius: 5px;
    color: #222;
    font-size: 1.6rem;
    font-weight: bold;
    max-width: 600px;
    margin: auto;
    transition: all 0.2s;
}
.all-item_btn a:after {
    content: "";
    position: absolute;
    top: 50%;
    right: 10px;
    width: 10px;
    height: 10px;
    transform: rotate(-45deg) translate(0, -50%);
    border-bottom: 3px solid #455f8c;
    border-right: 3px solid #455f8c;
}
.all-item_btn a:hover {
    opacity: 0.7;
}

/* 関連記事 */
.block_press{
    margin-bottom: 40px;
}

.block_press a{
    display: flex;
    flex-direction: column;
    gap:12px;
    position: relative;
    border: 1px solid #ccc;
    text-decoration: none;
    color: #222;
    padding: 20px;
    box-sizing: border-box;
}


.block_press a:hover{
    opacity: 0.7;
}

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

.block_press h3{
    font-size:1.8rem;
}

@media (min-width: 768px) {
    .block_press a{
        flex-direction: row;
        align-items: center;
    }

    .block_press a:after{
        content: "";
        position: absolute;
        top: 50%;
        right: 10px;
        width: 10px;
        height: 10px;
        transform: rotate(-45deg) translate(0, -50%);
        border-bottom: 3px solid #ccc;
        border-right: 3px solid #ccc;
    }

    .block_press img{ 
        width: 250px;
    }

    .block_press h3{
        width:calc(100% - 250px);
    }
}