.sitemap-container {
        max-width: 100%;
        margin: 0 auto;
    }

/* gridやめる */
.sitemap-grid {
    column-count: 1;
    column-gap: 24px;
}

    .sitemap-group {
        display: flex;
        flex-direction: column;
        gap: 20px;
        break-inside: avoid;
        margin-bottom: 24px;
    }


    /* カード：枠線を細く、シンプルに */
    .sitemap-card {
        background: #ffffff;
        border-radius: 4px;
        border: 1px solid #d1d5db; /* 細めのグレー枠 */
        border-left: 4px solid #ff6a00; /* 左側だけ黒のアクセント */
        overflow: hidden;
        transition: all 0.2s ease;
    }

    .sitemap-card:hover {
        border-color: #f97316; /* ホバー時のみオレンジの枠に */
        box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    }

    /* メインリンク */
    .sitemap-main-link {
        display: flex;
        align-items: center;
        justify-content: space-between;
        padding: 16px 20px;
        color: #111;
        text-decoration: none;
        font-weight: 700;
        font-size: 18px;
        background-color: #ffffff;
    }

    .sitemap-main-link:hover {
        color: #ff6a00;
    }

    /* 矢印アイコン：小さくシンプルに */
    .sitemap-arrow {
        width: 22px;
        height: 23px;
        background: #000;
        color: #fff;
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 14px;
        transition: background 0.2s;
        padding-top: 1px;
    }

    .sitemap-main-link:hover .sitemap-arrow {
        background: #ff6a00;
    }

    /* サブリンク */
    .sitemap-sub-list {
        background: #fdfdfd;
        border-top: 1px solid #eee;
        padding: 8px 0;
    }

    .sitemap-sub-link {
        display: block;
        padding: 8px 20px 8px 36px;
        color: #444;
        text-decoration: none;
        font-size: 16px;
        font-weight: 600;
        position: relative;
        transition: color 0.2s;
    }

    .sitemap-sub-link::before {
        content: '>';
        position: absolute;
        left: 20px;
        color: #ff6a00;
        font-weight: bold;
    }

    .sitemap-sub-link:hover {
        color: #ff6a00;
        text-decoration: underline;
    }


    /* インフォメーション */
    .info-box {
        padding: 16px;
        font-size: 14px;
        color: #aaa;
        border: 1px dashed #444;
        border-radius: 4px;
        line-height: 1.6;
    }