style(OnlineLearningMonitorPage): 优化UI样式和交互效果

- 更新全局字体和背景渐变
- 改进导航栏、按钮和卡片的设计
- 增强悬停和点击动画效果
- 优化移动端响应式布局
- 调整颜色方案和阴影效果
This commit is contained in:
YangQiang 2026-04-21 15:35:50 +08:00
parent f0aeeee5c5
commit 2580f447a4
4 changed files with 1760 additions and 594 deletions

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