<!DOCTYPE html>
<html lang="zh-CN">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title><%= typeof pageTitle !== 'undefined' ? pageTitle + ' - ' : '' %>VPS补货监控</title>
  <link rel="stylesheet" href="/css/style.css">
</head>
<body>
  <nav class="nav-public">
    <a href="/" class="brand">VPS补货监控</a>
    <div class="nav-links">
      <a href="/">首页</a>
      <a href="/plans">全部产品</a>
      <% if (typeof isAdmin !== 'undefined' && isAdmin) { %>
        <a href="/admin" class="nav-admin-link">后台管理</a>
      <% } else { %>
        <a href="/admin/login" class="nav-admin-link">管理登录</a>
      <% } %>
    </div>
  </nav>
  <main>
