/* 主分类 - 白底黑字，无边框 */
.ac-categories-page__parent {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 16px;
    background: var(--bg-card, #ffffff);
    border-radius: var(--border-radius, 8px);
    cursor: default;
    transition: all 0.2s ease;
}

.ac-categories-page__parent:hover {
    background: rgba(23, 114, 246, 0.04);
}

.ac-categories-page__parent-link {
    display: inline-flex;
    align-items: baseline;
    gap: 6px;
    text-decoration: none;
    flex: 1;
}

.ac-categories-page__parent-name {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary, #333333);
}

.ac-categories-page__parent-count {
    font-size: 14px;
    color: var(--text-secondary, #999999);
    font-weight: 400;
}

.ac-categories-page__parent-link:hover .ac-categories-page__parent-name {
    color: var(--theme-color, #1772F6);
}

/* 折叠按钮 */
.ac-categories-page__toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    background: transparent;
    border: 1px solid var(--border-primary, #e8e8e8);
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s ease;
    flex-shrink: 0;
    margin-left: 12px;
}

.ac-categories-page__toggle:hover {
    background: var(--theme-color, #1772F6);
    border-color: var(--theme-color, #1772F6);
}

.ac-categories-page__toggle:hover .ac-categories-page__toggle-icon {
    color: #ffffff;
}

.ac-categories-page__toggle-icon {
    width: 16px;
    height: 16px;
    color: var(--text-secondary, #666666);
    transition: transform 0.25s ease, color 0.2s ease;
}

.ac-categories-page__parent[data-collapsed="true"] .ac-categories-page__toggle-icon {
    transform: rotate(-90deg);
}

/* 子分类容器 */
.ac-categories-page__children {
    overflow: hidden;
    max-height: 2000px;
    transition: max-height 0.3s ease, opacity 0.2s ease;
}

.ac-categories-page__parent[data-collapsed="true"] + .ac-categories-page__children {
    max-height: 0;
    opacity: 0;
}

/* 子分类 Grid */
.ac-categories-page__grid {
    display: grid;
    gap: 10px 14px;
    padding: 12px 0;
}

.ac-categories-page__grid--cols-3 { grid-template-columns: repeat(3, 1fr); }
.ac-categories-page__grid--cols-4 { grid-template-columns: repeat(4, 1fr); }
.ac-categories-page__grid--cols-5 { grid-template-columns: repeat(5, 1fr); }
.ac-categories-page__grid--cols-6 { grid-template-columns: repeat(6, 1fr); }
.ac-categories-page__grid--cols-7 { grid-template-columns: repeat(7, 1fr); }
.ac-categories-page__grid--cols-8 { grid-template-columns: repeat(8, 1fr); }

/* 子分类项 */
.ac-categories-page__item {
    display: inline-flex;
    align-items: baseline;
    gap: 3px;
    padding: 8px 12px;
    background: var(--bg-card, #ffffff);
    border: 1px solid var(--border-primary, #e8e8e8);
    border-radius: var(--border-radius-sm, 6px);
    text-decoration: none;
    color: var(--text-primary, #333333);
    font-size: 14px;
    transition: all 0.25s ease;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.ac-categories-page__item:hover {
    color: var(--theme-color, #1772F6);
    border-color: var(--theme-color, #1772F6);
    background: rgba(23, 114, 246, 0.04);
    transform: translateY(-1px);
    box-shadow: 0 2px 6px rgba(23, 114, 246, 0.1);
}

.ac-categories-page__name {
    font-weight: 500;
    overflow: hidden;
    text-overflow: ellipsis;
}

.ac-categories-page__count {
    font-size: 12px;
    color: var(--text-secondary, #999999);
    font-weight: 400;
    flex-shrink: 0;
}

@media screen and (max-width: 1024px) {
    .ac-categories-page__grid--cols-7, .ac-categories-page__grid--cols-8 { grid-template-columns: repeat(5, 1fr); }
    .ac-categories-page__grid--cols-6 { grid-template-columns: repeat(5, 1fr); }
    .ac-categories-page__grid--cols-5 { grid-template-columns: repeat(4, 1fr); }
}

@media screen and (max-width: 768px) {
    .ac-categories-page__grid--cols-3, .ac-categories-page__grid--cols-4,
    .ac-categories-page__grid--cols-5, .ac-categories-page__grid--cols-6,
    .ac-categories-page__grid--cols-7, .ac-categories-page__grid--cols-8 {
        grid-template-columns: repeat(3, 1fr);
    }
    .ac-categories-page__item { padding: 7px 10px; font-size: 13px; }
    .ac-categories-page__parent { padding: 10px 12px; }
    .ac-categories-page__parent-name { font-size: 15px; }
    .ac-categories-page__toggle { width: 26px; height: 26px; }
}

@media screen and (max-width: 480px) {
    .ac-categories-page__grid--cols-3, .ac-categories-page__grid--cols-4,
    .ac-categories-page__grid--cols-5, .ac-categories-page__grid--cols-6,
    .ac-categories-page__grid--cols-7, .ac-categories-page__grid--cols-8 {
        grid-template-columns: repeat(2, 1fr);
    }
    .ac-categories-page__item { padding: 6px 9px; font-size: 12px; }
    .ac-categories-page__count { font-size: 11px; }
}