如何创建网格布局，其中所有未知数量的行具有相同的高度，但不是最后一行？

<style>
  .grid-container {
    display: grid;
    grid-template-rows: repeat(auto-fill, minmax(100px, 1fr));
    grid-auto-rows: minmax(100px, auto);
    grid-gap: 10px;
  }

  .grid-item {
    background-color: #ccc;
    padding: 10px;
  }

  .grid-item:last-child {
    grid-row: span 1; /* 最后一行只跨越1行 */
  }
</style>

<div class="grid-container">
  <div class="grid-item">网格项 1</div>
  <div class="grid-item">网格项 2</div>
  <div class="grid-item">网格项 3</div>
  <div class="grid-item">网格项 4</div>
  <div class="grid-item">网格项 5</div>
  <div class="grid-item">网格项 6</div>
  <div class="grid-item">网格项 7</div>
  <div class="grid-item">网格项 8</div>
  <div class="grid-item">网格项 9</div>
  <div class="grid-item">网格项 10</div>
  <div class="grid-item">网格项 11</div>
  <div class="grid-item">网格项 12</div>
  <div class="grid-item">网格项 13</div>
  <div class="grid-item">网格项 14</div>
  <div class="grid-item">网格项 15</div>
  <div class="grid-item">网格项 16</div>
  <div class="grid-item">网格项 17</div>
  <div class="grid-item">网格项 18</div>
  <div class="grid-item">网格项 19</div>
  <div class="grid-item">网格项 20</div>
  <div class="grid-item">网格项 21</div>
  <div class="grid-item">网格项 22</div>
  <div class="grid-item">网格项 23</div>
  <div class="grid-item">网格项 24</div>
  <div class="grid-item">网格项 25</div>
  <div class="grid-item">网格项 26</div>
  <div class="grid-item">网格项 27</div>
  <div class="grid-item">网格项 28</div>
  <div class="grid-item">网格项 29</div>
  <div class="grid-item">网格项 30</div>
  <div class="grid-item">网格项 31</div>
  <div class="grid-item">网格项 32</div>
  <div class="grid-item">网格项 33</div>
  <div class="grid-item">网格项 34</div>
  <div class="grid-item">网格项 35</div>
  <div class="grid-item">网格项 36</div>
  <div class="grid-item">网格项 37</div>
  <div class="grid-item">网格项 38</div>
  <div class="grid-item">网格项 39</div>
  <div class="grid-item">网格项 40</div>
  <div class="grid-item">网格项 41</div>
  <div class="grid-item">网格项 42</div>
  <div class="grid-item">网格项 43</div>
  <div class="grid-item">网格项 44</div>
  <div class="grid-item">网格项 45</div>
  <div class="grid-item">网格项 46</div>
  <div class="grid-item">网格项 47</div>
  <div class="grid-item">网格项 48</div>
  <div class="grid-item">网格项 49</div>
  <div class="grid-item">网格项 50</div>
</div>