.hgd-area {
    max-width: 1200px;
    margin: 0 auto;
    background: white;
    border-radius: 8px;
    overflow: hidden;
    border: 1px solid #e0e0e0;
}

.hgd-area__header {
    background: #fff;
    padding: 20px;
    border-bottom: 1px solid #e0e0e0;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: background-color 0.3s ease;
}

.hgd-area__header:hover {
    background: #f9f9f9;
}

.hgd-area__title {
    font-size: 18px;
    font-weight: 600;
    color: #333;
}

.hgd-area__subtitle {
    font-size: 14px;
    color: #666;
    margin-top: 4px;
}

.hgd-area__toggle-icon {
    font-size: 20px;
    color: #666;
    transition: transform 0.3s ease;
}

.hgd-area__toggle-icon--active {
    transform: rotate(180deg);
}

.hgd-area__content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
    background: #fafafa;
}

.hgd-area__content--active {
    max-height: 600px;
}

.hgd-area__grid {
    padding: 20px;
    display: grid;
    gap: 15px;
}

.hgd-area__section {
    background: white;
    border-radius: 6px;
    padding: 15px;
}

.hgd-area__section-title {
    font-size: 16px;
    font-weight: 600;
    color: #333;
    margin-bottom: 8px;
    display: flex;
    align-items: center;
}

.hgd-area__section-title::before {
    content: "📍";
    margin-right: 8px;
}

.hgd-area__prefecture-areas {
    margin-top: 10px;
}

.hgd-area__prefecture-section {
    margin-bottom: 15px;
}

.hgd-area__prefecture-title {
    font-size: 14px;
    font-weight: 600;
    color: #555;
    margin-bottom: 6px;
    padding-left: 10px;
    border-left: 2px solid #eba626;
}

.hgd-area__cities-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.hgd-area__city-link {
    text-decoration: none;
    color: inherit;
}

.hgd-area__city-item {
    background: #f0f0f0;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 14px;
    color: #555;
    transition: all 0.3s ease;
    cursor: pointer;
}

.hgd-area__city-item:hover {
    background: #eba626;
    color: white;
    transform: translateY(-1px);
}

/* タブレット・スマホ対応 */
@media (max-width: 768px) {
    .hgd-area__header {
        padding: 15px;
    }
    
    .hgd-area__title {
        font-size: 16px;
    }
    
    .hgd-area__grid {
        padding: 15px;
    }
    
    .hgd-area__cities-list {
        gap: 6px;
    }
    
    .hgd-area__city-item {
        font-size: 13px;
        padding: 3px 6px;
    }

    .hgd-area__content--active {
        overflow-y: scroll;
    }
}