<?php
header('Content-Type: application/xml; charset=UTF-8');
$host = $_SERVER['HTTP_HOST'] ?? ($_SERVER['SERVER_NAME'] ?? '');
$host = preg_replace('/[^a-zA-Z0-9\.\-:]/', '', $host);
$host = $host ?: 'localhost';
$scheme = (!empty($_SERVER['HTTPS']) && $_SERVER['HTTPS'] !== 'off') ? 'https' : 'http';
$base = $scheme . '://' . $host;
$paths = ['/','/recommend/','/hot/','/notice/','/new/','/premium/','/video-tutorial/','/creative-inspiration/','/solution-guide/','/trend-report/','/community/','/contact/'];
$today = date('Y-m-d');
echo '<?xml version="1.0" encoding="UTF-8"?>' . "\n";
?>
<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">
<?php foreach ($paths as $path): ?>
  <url>
    <loc><?php echo htmlspecialchars($base . $path, ENT_XML1, 'UTF-8'); ?></loc>
    <lastmod><?php echo $today; ?></lastmod>
    <changefreq><?php echo $path === '/' ? 'daily' : 'weekly'; ?></changefreq>
    <priority><?php echo $path === '/' ? '1.0' : '0.8'; ?></priority>
  </url>
<?php endforeach; ?>
</urlset>
