<!DOCTYPE html>
<html lang="zh-CN">
<head>
  <meta charset="UTF-8" />
  <meta name="viewport" content="width=device-width, initial-scale=1.0" />
  <title>Kole UI · BottomSheet（普通 H5）</title>
  <link rel="stylesheet" href="../.design_library/kole-ui/colors_and_type.css" />
  <link rel="stylesheet" href="BottomSheet.css" />
  <style>body{margin:0;padding:24px;background: var(--kole-color-page-bg);}</style>
</head>
<body>
  <button id="open">打开底部面板</button>

  <div class="kole-sheet-mask" id="mask"></div>
  <div class="kole-sheet" id="sheet">
    <div class="kole-sheet-handle" id="handle"></div>
    <div class="kole-sheet-header">筛选订单</div>
    <div class="kole-sheet-body">
      在这里放置筛选条件、操作列表等内容。面板可从底部滑动出现，点击遮罩或向下拖动可关闭。
    </div>
    <div class="kole-sheet-footer">
      <button class="kole-sheet-btn" id="cancel">取消</button>
      <button class="kole-sheet-btn primary" id="apply">应用</button>
    </div>
  </div>

  <script>
    var mask = document.getElementById('mask');
    var sheet = document.getElementById('sheet');
    function open() { mask.classList.add('is-open'); sheet.classList.add('is-open'); }
    function close() { mask.classList.remove('is-open'); sheet.classList.remove('is-open'); }
    document.getElementById('open').onclick = open;
    mask.onclick = close;
    document.getElementById('cancel').onclick = close;
    document.getElementById('apply').onclick = close;

    var startY = 0;
    sheet.addEventListener('pointerdown', function (e) { startY = e.clientY; });
    sheet.addEventListener('pointerup', function (e) {
      if (startY - e.clientY < -80) close();
    });
  </script>
</body>
</html>
