.sidebar-block {
    margin-bottom: 24px;
    border: 1px solid #eee;
    border-radius: 3px;
    background: #ffffff;
}

.sidebar-block__title {
    margin: 0;
    padding: 10px 12px;
    font-size: 15px;
    font-weight: 700;
    text-transform: uppercase;
    border-bottom: 1px solid #eee;
    background: #f8f5fa;
    color: #bf0721;
}

.sidebar-category-list {
    list-style: none;
    margin: 0;
    padding: 6px 0;
}

.sidebar-category-list__item {
    border-bottom: 1px solid #f2f2f2;
}

.sidebar-category-list__item:last-child {
    border-bottom: none;
}

.sidebar-category-list__item-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.sidebar-category-list__link {
    display: block;
    padding: 8px 12px;
    font-size: 14px;
    color: #444;
    text-decoration: none;
}

.sidebar-category-list__link:hover {
    color: #bf0721;
}

.sidebar-category-list__toggle {
    border: none;
    background: transparent;
    padding: 0 10px 0 0;
    cursor: pointer;
    color: #999;
}

.sidebar-category-list--child {
    display: none;
    padding-left: 10px;
}

.sidebar-category-list--child .sidebar-category-list__link {
    padding-left: 24px;
    font-size: 13px;
}

.sidebar-category-list__item.is-open > .sidebar-category-list--child {
    display: block;
}

/* Danh sách tin tức cột phải */
.sidebar-news-list {
    margin: 0;
    padding: 0;
}

.sidebar-news-item {
    display: flex;
    gap: 10px;
    padding: 8px 0;
    border-bottom: 1px solid #f2f2f2;
}

.sidebar-news-item:last-child {
    border-bottom: none;
}

.sidebar-news-item__thumb {
    flex: 0 0 70px;
    max-width: 70px;
    display: block;
}

.sidebar-news-item__img {
    display: block;
    width: 100%;
    height: auto;
    border-radius: 2px;
}

.sidebar-news-item__content {
    flex: 1 1 auto;
}

.sidebar-news-item__title {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: #333;
    text-decoration: none;
    margin-bottom: 3px;
}

.sidebar-news-item__title:hover {
    color: #c60b23;
}

.sidebar-news-item__meta {
    font-size: 12px;
    color: #999;
}

/* ===== SIDEBAR CATEGORY BLOCK ===== */

.sidebar-block--category {
    margin-bottom: 25px;
}

.sidebar-block--category .sidebar-block__title {
    margin: 0 0 10px;
    padding: 8px 12px;
    font-size: 15px;
    font-weight: 700;
    text-transform: uppercase;
    background: #f5f5f5;
    border-left: 3px solid #c60b23;
    color: #2c1545;
}

.sidebar-block--category .sidebar-block__content {
    background: #fff;
    border: 1px solid #eee;
    padding: 8px 12px;
}

/* List cấp 1 */
.sidebar-category {
    list-style: none;
    margin: 0;
    padding: 0;
}

.sidebar-category__item {
    position: relative;
    padding: 6px 0;
    border-bottom: 1px solid #f0f0f0;
}

.sidebar-category__item:last-child {
    border-bottom: none;
}

.sidebar-category__link {
    display: block;
    padding-right: 26px;
    font-size: 14px;
    color: #333;
    text-decoration: none;
}

.sidebar-category__link:hover {
    color: #c60b23;
}

/* Nút toggle con */
.sidebar-category__toggle {
    position: absolute;
    top: 4px;
    right: 0;
    width: 22px;
    height: 22px;
    border-radius: 2px;
    border: none;
    background: transparent;
    color: #777;
    padding: 0;
    cursor: pointer;
}

.sidebar-category__toggle i {
    font-size: 14px;
}

.sidebar-category__item--open .sidebar-category__toggle {
    color: #c60b23;
}

/* List cấp 2 */
.sidebar-category__sublist {
    list-style: none;
    margin: 6px 0 0;
    padding-left: 14px;
    display: none; /* mở bằng JS */
}

.sidebar-category__subitem {
    padding: 3px 0;
}

.sidebar-category__sublink {
    display: block;
    font-size: 13px;
    color: #666;
    text-decoration: none;
}

.sidebar-category__sublink:hover {
    color: #c60b23;
}

/* Khi item mở thì hiển thị con, phòng khi JS không kịp set style */
.sidebar-category__item--open > .sidebar-category__sublist {
    display: block;
}

/* Responsive nhỏ một chút cho sidebar */
@media (max-width: 767px) {
    .sidebar-block--category .sidebar-block__title {
        font-size: 14px;
        padding: 8px 10px;
    }

    .sidebar-category__link {
        font-size: 13px;
    }
}