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app/Views/admin/system.php

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+<?php /** @var string $seg */
+$phpVer   = phpversion();
+$sapi     = php_sapi_name();
+$dbDriver = \Core\Db::driver();
+$dbVer    = $dbDriver === 'mysql' ? \Core\Db::pdo()->query("SELECT VERSION()")->fetchColumn() : '—';
+$tz       = date_default_timezone_get();
+$storageWritable = is_writable(BASE_PATH . '/storage');
+$uploadWritable  = is_writable(BASE_PATH . '/public/uploads');
+$installed = \Core\Installer::isInstalled();
+$info = [
+    'PHP 版本'     => $phpVer,
+    '运行模式'     => $sapi,
+    '数据库驱动'   => $dbDriver === 'mysql' ? 'MySQL' : $dbDriver,
+    '数据库版本'   => $dbVer,
+    '系统时区'     => $tz,
+    '站点已安装'   => $installed ? '是' : '否',
+    '根目录'       => BASE_PATH,
+    '存储目录可写' => $storageWritable ? '✓ 可写' : '✗ 不可写',
+    '上传目录可写' => $uploadWritable ? '✓ 可写' : '✗ 不可写',
+];
+?>
+<div class="page-head">
+  <div><h1>系统设置</h1><div class="desc">查看运行环境与数据库维护入口。</div></div>
+</div>
+
+<div class="admin-card">
+  <h3 class="card-title">运行环境</h3>
+  <table class="tbl tbl-info">
+    <tbody>
+      <?php foreach ($info as $k => $v): ?>
+        <tr><th><?php echo e($k); ?></th><td class="mono"><?php echo e($v); ?></td></tr>
+      <?php endforeach; ?>
+    </tbody>
+  </table>
+</div>
+
+<div class="shortcut-grid">
+  <a class="shortcut-card" href="<?php echo site_url('admin/db'); ?>">
+    <span class="shortcut-ic"><?php echo admin_icon('database', 26); ?></span>
+    <span class="shortcut-title">数据库管理</span>
+    <span class="shortcut-desc">查看并编辑所有表的数据</span>
+  </a>
+  <a class="shortcut-card" href="<?php echo site_url('admin/upgrade'); ?>">
+    <span class="shortcut-ic"><?php echo admin_icon('upload', 26); ?></span>
+    <span class="shortcut-title">数据库升级</span>
+    <span class="shortcut-desc">执行升级包并留痕记录</span>
+  </a>
+</div>