/**
 * 移动端：左侧类别/标签在窄屏隐藏时，用顶部下拉按钮访问（与圣甲虫页交互一致）
 */

.mobile-sidebar-cat-wrap {
    display: none;
    position: relative;
    width: 100%;
    margin-bottom: 0.75rem;
}

@media (max-width: 768px) {
    .mobile-sidebar-cat-wrap {
        display: block !important;
    }
}

@media (min-width: 769px) {
    .mobile-sidebar-cat-wrap {
        display: none !important;
    }
}

#mobile-sidebar-cat-toggle {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    max-width: 100%;
    padding: 0.65rem 0.85rem;
    border-radius: 0.375rem;
    border: 1px solid #4b5563;
    background: #2563eb;
    color: #fff;
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    text-align: left;
    gap: 0.5rem;
    touch-action: manipulation;
    -webkit-tap-highlight-color: transparent;
}

#mobile-sidebar-cat-toggle:hover {
    background: #1d4ed8;
}

#mobile-sidebar-cat-toggle .mobile-sidebar-cat-chevron {
    flex-shrink: 0;
    opacity: 0.9;
    font-size: 0.85rem;
}

#mobile-sidebar-cat-toggle-text {
    flex: 1;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

#mobile-sidebar-cat-menu {
    display: none !important;
    position: absolute;
    left: 0;
    right: 0;
    top: calc(100% + 4px);
    z-index: 200;
    max-height: min(55vh, 420px);
    overflow-y: auto;
    overflow-x: hidden;
    -webkit-overflow-scrolling: touch;
    background: #1f2937;
    border: 1px solid #374151;
    border-radius: 0.5rem;
    padding: 0.45rem;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.45);
}

#mobile-sidebar-cat-menu.mobile-sidebar-cat-open {
    display: block !important;
}

.mobile-sidebar-cat-item {
    display: block;
    width: 100%;
    padding: 0.5rem 0.65rem;
    margin-bottom: 0.3rem;
    text-align: left;
    border-radius: 0.35rem;
    background: #374151;
    color: #f9fafb;
    border: none;
    cursor: pointer;
    font-size: 0.8125rem;
    line-height: 1.3;
    word-break: break-word;
}

.mobile-sidebar-cat-item:last-child {
    margin-bottom: 0;
}

.mobile-sidebar-cat-item:hover,
.mobile-sidebar-cat-item:focus-visible {
    background: #4b5563;
    outline: none;
}