.sitemap-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 40px;
    border-radius: 8px;
}

/* 製品情報グリッド */
.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.category-card {
    padding: 20px;
    transition: box-shadow 0.3s, transform 0.3s;
}

.category-card h3 {
    font-size: --var(--font-size-h5);
    color: #004d99;
    border-bottom: 2px solid var(--color-background-border);
    padding-bottom: 10px;
    margin-top: 0;
    margin-bottom: 15px;
    display: flex;
    align-items: center;
}

.category-card h3 span {
    font-size: --var(--font-size-h5);
    margin-right: 10px;
}

/* リンクスタイル */
.category-card ul {
    padding: 0;
    margin: 0;
    line-height: 1.8;
    list-style: none;
}

.category-card a {
    text-decoration: none;
    color: var(--color-body-text-2);
    transition: color 0.2s;
    font-size: var(--font-size-caption);
    display: block;
    padding: 2px 0;
}

.category-card a:hover {
    color: #cc0000;
    text-decoration: underline;
}

/* 補助メニューエリア */
.auxiliary-section {
    padding-top: 50px;
    font-size: var(--font-size-h3);
}
.auxiliary-menu {
    display: flex;
    justify-content: space-between;
    gap: 20px;
}

.auxiliary-menu-block {
    flex: 1;
    padding: 0 10px;
}

.auxiliary-menu-block h3 {
    color: var(--color-body-text);
    font-size: var(--font-size-body-text);
    border-bottom: 1px solid var(--color-background-border);
    padding-bottom: 8px;
    margin-bottom: 15px;
}

.auxiliary-menu-block ul {
    list-style: disc;
    padding-left: 20px;
    line-height: 1.6;
}

.auxiliary-menu-block a {
    color: var(--color-body-text-2);
    text-decoration: none;
}

.auxiliary-menu-block a:hover {
    color: var(--color-link-text);
    text-decoration: underline;
}

/* レスポンシブ対応 */
@media (max-width: 600px) {
    .product-grid {
        grid-template-columns: 1fr;
        gap: 10px;
        margin-bottom: 10px;
    }
    .category-card {
        padding: 10px;
    }
    .auxiliary-menu {
        flex-direction: column;
    }
}