older="输入自定义 craft"
                       class="p-2 border border-gray-300 rounded"/>
            </div>
            <div class="mb-4">
                <label for="inputUrl" class="mr-2">输入原 RSS URL:</label>
                <input type="text" id="inputUrl" placeholder="输入 URL" class="p-2 border border-gray-300 rounded"/>
            </div>
            <button onclick="appendPrefix()" class="px-4 py-2 bg-blue-500 text-white rounded">显示 Crafted Feed URL
            </button>
        