:root {
  --column-category-color-technical: #7FBFFF;
  --column-category-color-csr: #202f55;
  --column-category-color-gray: #5f6676;
}

/*
タイトル部分
*/
.column-header{
    padding: 40px 15px;
    background-image: url(../img/column/header_bg.webp);
    background-repeat: no-repeat;
    background-size: cover;
    background-position: center;
    position: relative;
    margin-bottom: 10px;
    font-family: 'Noto Sans JP', sans-serif;
}
.column-header::after{
    content: '';
    background-color: #999;
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 1;
    mix-blend-mode: multiply;
}
.column-header h1,
.column-header .column-header-en
{
    position: relative;
    z-index: 2;
    color: #FFF;
    text-align: center;
}
.column-header h1{
    font-weight: 900;
    font-size: 32px;
    margin-bottom: 5px;
}
@media screen and (max-width: 768px) {
    .column-header h1{
        font-size: 24px;
    }
}
.column-header-en{
    font-size: 18px;
    font-weight: bold;
}
    @media screen and (max-width: 768px) {
        .column-header-en{
            font-size: 14px;
        }
    }

/*
カテゴリ名
*/
.column-subtitle{
    font-weight: bold;
    text-align: center;
    font-size: 26px;
    margin-top: 40px;
}

/*
記事リスト上カテゴリータブ
*/
.column-category-list{
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    margin-bottom: 40px;
}
@media screen and (max-width: 768px) {
    .column-category-list{
        gap: 5px;
    }
}
.column-category-item a{
    display: block;
    background-color: var(--column-category-color-gray);
    padding: 10px 20px;
    color: #FFF;
    border-radius: 50px;
    font-size: 18px;
    font-weight: bold;
}
    @media screen and (max-width: 768px) {
        .column-category-item a{
            font-size: 12px;
            padding: 5px 15px;
        }
    }
.column-category-item--all a{
    background-color: #FFF;
    border: solid 1px #000;
    color: #000;
}
.column-category-item--technical a{
    background-color: var(--column-category-color-technical);
}
.column-category-item--csr a{
    background-color: var(--column-category-color-csr);
}
.column-category-item--active{
    transform: translate(-5px, -5px);
}
.column-category-item--active a{
    box-shadow: 5px 5px 0 #CCC;
}
    @media screen and (max-width: 768px) {
        .column-category-item--active{
            transform: translate(-3px, -3px);
        }
        .column-category-item--active a{
            box-shadow: 2px 2px 0 #CCC;
        }
    }

.column-cards{
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}
    @media screen and (max-width: 1080px) {
        .column-cards{
            grid-template-columns: repeat(2, 1fr);
            gap: 10px;
        }
    }
    @media screen and (max-width: 768px) {
        .column-cards{
            grid-template-columns: repeat(1, 1fr);
            gap: 10px;
        }
    }

.column-card{
    border: solid 1px #000;
    border-radius: 5px;
    overflow: hidden;
}
.column-card a:hover{
    opacity: 1;
}
.column-card figure{
    width: 100%;
    aspect-ratio: 16 / 9;
    border-bottom: solid 1px #CCC;
    overflow: hidden;
}
.column-card figure img{
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: 0.5s;
}
.column-card figure:hover img{
    transform: scale(1.05);
    transition: 0.5s;
}

.column-card-thumbarea{
    position: relative;
}
.column-card-taxes{
    position: absolute;
    top: 10px;
    left: 10px;
    display: flex;
    gap: 10px;
}
.column-card-taxes--inline{
    position: static;
    top: auto;
    left: auto;
}
.column-card-tax a{
    display: block;
    border: solid 1px #EEE;
    background-color: #999;
    padding: 2px 5px;
    border-radius: 3px;
    font-size: 12px;
    font-weight: bold;
    color: #FFF;
}
.column-card-tax a:hover{
    background-color: #FFF;
    color: #000;
}
.column-card-tax--csr a{
    background-color: var(--column-category-color-csr);
}
.column-card-tax--technical a{
    background-color: var(--column-category-color-technical);
}

.column-card-textarea{
    padding: 15px 25px;
}
.column-card-textarea h3{
    font-weight: bold;
    font-size: 18px;
}
.column-card-textarea time{
    font-size: 12px;
}
.column-card-textarea a:hover{
    color: #728ac8;
}

.column-archive-link a{
    display: block;
    width: fit-content;
    font-size: 24px;
    font-weight: bold;
    margin: 0 auto;
    position: relative;
}
.column-archive-link a::before{
	content: '◀︎';
	position: absolute;
	left: -40px;
	top: 50%;
	transform: translateY(-50%);
	background-color: #000;
	color: #FFF;
	font-size: 14px;
	display: flex;
	justify-content: center;
	flex-direction: column;
	width: 2em;
	aspect-ratio: 1 / 1;
	border-radius: 50%;
	font-weight: bold;
	text-align: center;
}

.column-nav{
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    border-top: solid 1px #000;
    border-bottom: solid 1px #000;
    padding: 10px 0;
}
.column-nav a:hover{
    text-decoration: underline;
}
.column-nav-prev{

}
.column-nav-next{
    text-align: right;
}


.column-content{
    font-size: 16px;
}
.column-content p,
.column-content figure{
    margin: 1.5em 0;
}
.column-content p a{
    text-decoration: underline;
}
.column-content h2,
.column-content h3,
.column-content h4,
.column-content h5,
.column-content h6{
    font-weight: bold;
    margin: 1.5em 0;
}
.column-content h2{
    font-size: 22px;
}
.column-content h3{
    font-size: 18px;
}
.column-content ul,
.column-content ol{
    margin: 1.5em 0;
    margin-left: 2em;
}
.column-content ul li{
    list-style: disc;
}
.column-content ol li{
    list-style: decimal;
}

@media screen and (max-width: 768px) {
    .column-content p{
        font-size: 14px;
    }
}

.column-pagination .nav-links{
    display: flex;
    justify-content: center;
    gap: 10px;
}
.column-pagination .nav-links span,
.column-pagination .nav-links a{
    display: flex;
    justify-content: center;
    flex-direction: column;
    text-align: center;
    width: 2.5em;
    height: 2.5em;
    background-color: #CCC;
    border-radius: 5px;
    font-weight: bold;
}
.column-pagination .nav-links span.current{
    background-color: #202f55;
    color: #FFF;
}

.column-no-posts{
    font-weight: bold;
    text-align: center;
    background-color: #EEE;
    border-radius: 5px;
    padding: 20px;
    max-width: 1440px;
    margin: 0 auto;
}