重构小程序图标组件，替换传统 emoji 为 SVG 图标，提升视觉一致性和可维护性。更新多个页面以使用新图标组件，优化用户界面体验。同时，调整了数据加载逻辑，确保更高效的状态管理和用户交互。

miniprogram/pages/about/about.wxss

@@ -17,7 +17,8 @@
 .stat-value { font-size: 36rpx; font-weight: 700; color: #00CED1; display: block; }
 .stat-label { font-size: 22rpx; color: rgba(255,255,255,0.5); }
 .contact-card { background: #1c1c1e; border-radius: 32rpx; padding: 32rpx; }
-.card-title { font-size: 28rpx; font-weight: 600; color: #fff; display: block; margin-bottom: 24rpx; }
+.card-title { font-size: 28rpx; font-weight: 600; color: #fff; display: flex; align-items: center; gap: 12rpx; margin-bottom: 24rpx; }
+.card-title .card-title-icon { flex-shrink: 0; }
 .contact-item { display: flex; align-items: center; gap: 24rpx; padding: 24rpx; background: rgba(255,255,255,0.05); border-radius: 16rpx; margin-bottom: 16rpx; }
 .contact-item:last-child { margin-bottom: 0; }
 .contact-icon { font-size: 40rpx; }