@charset "UTF-8";

/* ===================================
   コラム一覧 ヒーロー (Hero)
   =================================== */
.col-hero {
    width: 100%;
    background-color: #516881;
    padding: 60px 20px 44px;
}

.col-hero-inner {
    max-width: 860px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    gap: 40px;
}

.col-hero-en {
    font-size: 13px;
    font-weight: bold;
    letter-spacing: 0.3em;
    color: rgba(255, 255, 255, 0.6);
    margin: 0 0 6px;
}

.col-hero-title {
    font-size: 36px;
    font-weight: bold;
    color: #fff;
    margin: 0 0 14px;
    line-height: 1.3;
    letter-spacing: 0.05em;
}

.col-hero-sub {
    font-size: 15px;
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.9;
    margin: 0;
}

/* ===================================
   コラム一覧セクション (List)
   =================================== */
.col-list-section {
    width: 100%;
    background-color: #fff;
    padding: 60px 20px 90px;
}

/* カテゴリフィルター */
.col-filter {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    justify-content: center;
    max-width: 980px;
    margin: 0 auto 40px;
}

.col-filter-btn {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    padding: 9px 22px;
    border-radius: 22px;
    border: 2px solid #9fd9f6;
    background-color: #fff;
    color: #516881;
    font-size: 13px;
    font-family: inherit;
    font-weight: bold;
    cursor: pointer;
    letter-spacing: 0.05em;
    transition: background-color 0.2s, color 0.2s;
}

.col-filter-btn:hover {
    background-color: #e5f6fd;
}

.col-filter-btn--active {
    background-color: #9fd9f6;
    color: #1e3a5a;
    border-color: #9fd9f6;
}

.col-filter-dot {
    display: inline-block;
    width: 9px;
    height: 9px;
    border-radius: 50%;
    flex-shrink: 0;
}

/* 件数表示 */
.col-result-count {
    text-align: center;
    font-size: 13px;
    color: #888;
    margin-bottom: 36px;
}

/* ===================================
   カードグリッド
   =================================== */
.col-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
    max-width: 980px;
    margin: 0 auto;
}

/* スライダーのインラインスタイルを打ち消す */
.col-grid .column-card {
    width: auto !important;
    flex-shrink: unset !important;
}

/* サムネイル高さをリスト向けに調整 */
.col-grid .column-thumb {
    height: 200px;
}

/* カードリンク */
.col-card-link {
    display: block;
    color: inherit;
    text-decoration: none;
}

.col-card-link:hover {
    opacity: 1;
}

/* フィルター非表示 */
.col-grid .column-card[style*="display: none"] {
    display: none !important;
}

/* ===================================
   レスポンシブ
   =================================== */
@media (max-width: 900px) {
    .col-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 600px) {
    .col-hero {
        padding: 40px 20px 32px;
    }

    .col-hero-inner {
        flex-direction: column;
        gap: 20px;
        text-align: center;
    }

    .col-hero-title {
        font-size: 26px;
    }

    .col-hero-sub {
        font-size: 13px;
    }

    .col-grid {
        grid-template-columns: 1fr;
    }

    .col-list-section {
        padding: 40px 16px 60px;
    }
}