                   <h2 class="text-3xl sm:text-4xl font-bold text-gray-900 dark:text-white mb-4">发展历程</h2>
                    <div class="w-20 h-1 bg-blue-600 mx-auto rounded-full"></div>
                </div>

                <div class="relative">
                    <!-- 时间轴线 -->
                    <div class="absolute left-1/2 transform -translate-x-1/2 h-full w-1 bg-blue-200 dark:bg-blue-800"></div>

                    <div class="space-y-12">
                        {% for mileston