<!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 · QRCode（普通 H5）</title>
  <link rel="stylesheet" href="../.design_library/kole-ui/colors_and_type.css" />
  <link rel="stylesheet" href="QRCode.css" />
  <style>body{margin:0;padding:24px;background: var(--kole-color-page-bg);} .kole-panel{background: var(--kole-color-card-bg);border: 1px solid var(--kole-color-border);border-radius:8px;padding:16px;display:inline-block;}</style>
</head>
<body>
  <div class="kole-panel">
    <div class="kole-qrcode" role="img" id="app"></div>
    <div style="margin-top:12px"><input id="val" value="https://kole.admin" style="width:200px;border:1px solid var(--color-border);border-radius:6px;padding:6px 8px;" /></div>
  </div>

  <script>
    function buildMatrix(value, n) {
      var seed = 0; for (var i = 0; i < value.length; i++) seed = (seed * 31 + value.charCodeAt(i)) >>> 0;
      function rnd() { seed = (seed * 1103515245 + 12345) >>> 0; return seed / 4294967296; }
      var m = []; for (var r = 0; r < n; r++) { m.push(new Array(n).fill(false)); }
      for (var r2 = 0; r2 < n; r2++) for (var c = 0; c < n; c++) { if (rnd() > 0.5) m[r2][c] = true; }
      function place(r0, c0) {
        for (var r = 0; r < 7; r++) for (var c = 0; c < 7; c++) {
          var edge = r === 0 || r === 6 || c === 0 || c === 6; var inner = r >= 2 && r <= 4 && c >= 2 && c <= 4;
          m[r0 + r][c0 + c] = edge || inner;
        }
        for (var rr = -1; rr < 8; rr++) for (var cc = -1; cc < 8; cc++) {
          var y = r0 + rr, x = c0 + cc; if (y >= 0 && y < n && x >= 0 && x < n) { if (rr < 0 || rr === 7 || cc < 0 || cc === 7) m[y][x] = false; }
        }
      }
      place(0, 0); place(0, n - 7); place(n - 7, 0);
      return m;
    }
    function render() {
      var val = document.getElementById('val').value;
      var n = 25, cell = 8, size = n * cell;
      var m = buildMatrix(val, n);
      var rects = '';
      for (var r = 0; r < n; r++) for (var c = 0; c < n; c++) {
        if (m[r][c]) rects += '<rect x="' + (c * cell) + '" y="' + (r * cell) + '" width="' + cell + '" height="' + cell + '" />';
      }
      document.getElementById('app').innerHTML =
        '<svg width="' + size + '" height="' + size + '" viewBox="0 0 ' + size + ' ' + size + '" fill="#1F2329">' + rects + '</svg>' +
        '<div class="kole-qrcode-text">' + val + '</div>';
    }
    document.getElementById('val').addEventListener('input', render);
    render();
  </script>
</body>
</html>
