header.php.bak_menu_reorder_20260811_2:2:$current_dir = dirname($_SERVER['PHP_SELF']);
header.php.bak_menu_reorder_20260811_2:499:            $currentPage = basename($_SERVER['PHP_SELF']);
header.php.bak_menu_reorder_20260811_2:501:            $navigation = [
header.php.bak_menu_reorder_20260811_2:502:                [
header.php.bak_menu_reorder_20260811_2:507:                [
header.php.bak_menu_reorder_20260811_2:512:                    'submenu' => [
header.php.bak_menu_reorder_20260811_2:513:                        ['label' => 'System Atlas',    'url' => 'list.php?type=sys&SP_ID=SP121',  'icon' => '🫀'],
header.php.bak_menu_reorder_20260811_2:514:                        ['label' => 'Tissue Atlas',    'url' => 'list.php?type=tis&SP_ID=SP121',  'icon' => '🔬'],
header.php.bak_menu_reorder_20260811_2:515:                        ['label' => 'Cell Atlas',      'url' => 'list.php?type=ct&SP_ID=SP121',    'icon' => '🧫'],
header.php.bak_menu_reorder_20260811_2:516:                        ['label' => 'Longevity Maps',   'url' => 'maps.php?SP_ID=SP121',     'icon' => '🗺️'],
header.php.bak_menu_reorder_20260811_2:517:                        ['label' => 'QC Statistics',   'url' => 'stats.php?SP_ID=SP121&tisID=sys04tis01', 'icon' => '🔬'],                      
header.php.bak_menu_reorder_20260811_2:518:                        ['label' => 'Atlas Analysis',   'url' => 'analysis.php?SP_ID=SP121&tisID=sys04tis01', 'icon' => '📊'],                 
header.php.bak_menu_reorder_20260811_2:522:                [
header.php.bak_menu_reorder_20260811_2:527:                    'submenu' => [
header.php.bak_menu_reorder_20260811_2:528:                        ['label' => 'GeneComparativeAnalysis',  'url' => 'genecompare.php',     'icon' => '🧬'],
header.php.bak_menu_reorder_20260811_2:529:                        ['label' => 'GeneCorrelationAnalysis',  'url' => 'genecorrelation.php',  'icon' => '📈'],
header.php.bak_menu_reorder_20260811_2:530:                        ['label' => 'CellComparativeAnalysis',  'url' => 'cellcompare.php',      'icon' => '🔄'],
header.php.bak_menu_reorder_20260811_2:531:                        ['label' => 'CellCorrelationAnalysis',  'url' => 'cellcorrelation.php',  'icon' => '📉'],
header.php.bak_menu_reorder_20260811_2:534:                [
header.php.bak_menu_reorder_20260811_2:539:                    'submenu' => [
header.php.bak_menu_reorder_20260811_2:540:                        ['label' => 'scRNAseq',     'url' => 'human-immune-atlas.php#china-core-datasets',    'icon' => 'sc'],
header.php.bak_menu_reorder_20260811_2:541:                        ['label' => 'bulk RNAseq',  'url' => 'human-immune-atlas.php#bulk-rnaseq-datasets',  'icon' => 'RNA'],
header.php.bak_menu_reorder_20260811_2:542:                        ['label' => 'Proteomics',   'url' => 'human-immune-atlas.php#proteomics-datasets',    'icon' => 'PRO'],
header.php.bak_menu_reorder_20260811_2:543:                        ['label' => 'Metabolomics', 'url' => 'human-immune-atlas.php#metabolomics-datasets',  'icon' => 'MET'],
header.php.bak_menu_reorder_20260811_2:544:                        ['label' => 'Analysis',     'url' => 'human-immune-analysis.php',                     'icon' => 'ANA'],
header.php.bak_menu_reorder_20260811_2:547:                [
header.php.bak_menu_reorder_20260811_2:552:                    'submenu' => [
header.php.bak_menu_reorder_20260811_2:553:                        ['label' => 'Statistics',          'url' => 'statistics.php', 'icon' => '&#128202;'],
header.php.bak_menu_reorder_20260811_2:554:                        ['label' => 'Tutorial',    'url' => 'tutorial.php',      'icon' => '📖'],
header.php.bak_menu_reorder_20260811_2:555:                        ['label' => 'Our Mission',    'url' => 'mission.php',      'icon' => '🎯'],
header.php.bak_menu_reorder_20260811_2:556:                        ['label' => 'Team',           'url' => 'team.php',         'icon' => '👥'],
header.php.bak_menu_reorder_20260811_2:557:                         ['label' => 'LongevityGenes',     'url' => 'longevitygene.php', 'icon' => '🧬'],
header.php.bak_menu_reorder_20260811_2:558:                        ['label' => 'LongevityBar',       'url' => 'bar.php',           'icon' => '📊'],
header.php.bak_menu_reorder_20260811_2:559:                        ['label' => 'LongevityScholar',   'url' => 'scholar.php',        'icon' => '🎓'],
header.php.bak_menu_reorder_20260811_2:560:                        ['label' => 'LongevityDatabase',  'url' => 'database.php',       'icon' => '🗄️'],                       
header.php.bak_menu_reorder_20260811_2:566:                $isActive = ($currentPage === $item['url']) ? 'active' : '';
header.php.bak_menu_reorder_20260811_2:567:                $hasDropdownClass = $item['hasDropdown'] ? 'has-dropdown' : '';
header.php.bak_menu_reorder_20260811_2:570:                echo '<a href="' . $item['url'] . '" class="' . $isActive . '"' . ($isActive ? ' aria-current="page"' : '') . '>';
header.php.bak_menu_reorder_20260811_2:571:                echo $item['label'];
header.php.bak_menu_reorder_20260811_2:572:                if ($item['hasDropdown']) {
header.php.bak_menu_reorder_20260811_2:577:                if ($item['hasDropdown'] && isset($item['submenu'])) {
header.php.bak_menu_reorder_20260811_2:582:                    echo '<div class="dropdown-header">' . $item['dropdownTitle'] . '</div>';
header.php.bak_menu_reorder_20260811_2:584:                    foreach ($item['submenu'] as $subitem) {
header.php.bak_menu_reorder_20260811_2:586:                        echo '<a href="' . $subitem['url'] . '">';
header.php.bak_menu_reorder_20260811_2:587:                        echo '<span class="dropdown-icon">' . $subitem['icon'] . '</span>';
header.php.bak_menu_reorder_20260811_2:588:                        echo '<span>' . $subitem['label'] . '</span>';
