💄 Style: revert timeline animation to fade style

README.md

@@ -137,7 +137,7 @@ All feedback is welcome! Head over to the [discussions][discussions], [Pull requ
 | :------------------------- | :------------------------------- |
 | [Discussions][discussions] | Official GitHub discussion forum |
 | [FixIt QQ group][qq-group] | Official QQ group: `814031017`   |
-| [Hugo FixIt Planet][zsxq]  | Official Knowledge Planet        |
+| [Hugo FixIt Planet][zsxq]  | Official Knowledge Planet[^2]    |
 
 [discussions]: https://github.com/hugo-fixit/FixIt/discussions
 [pulls]: https://github.com/hugo-fixit/FixIt/pulls
@@ -211,10 +211,6 @@ Thanks to all the [contributors](https://github.com/hugo-fixit/FixIt/graphs/cont
 
 FixIt is licensed under the **MIT** license. Check the [LICENSE file](LICENSE) for details.
 
-## Author
-
-Follow [Lruihao](https://github.com/Lruihao "Follow me on GitHub")
-
 ## Sponsor
 
 [![Open Source Love](https://badges.frapsoft.com/os/v1/open-source.svg?v=103)](https://github.com/hugo-fixit/FixIt)
@@ -225,6 +221,12 @@ If you enjoy the theme, please consider buying me a coffee ☕️. Thanks!
 - [Alipay](images/alipay.jpg)
 - [PayPal](https://paypal.me/Lruihao)
 
+## Author
+
+Follow [Lruihao](https://github.com/Lruihao "Follow me on GitHub")
+
 Don't forget to leave a ⭐️ if you like this theme, thanks!
 
+<!-- footnote reference definition -->
 [^1]: The theme name is interesting: "leave it, keep it, love it, fix it". Appears and leaves, loves but cannot keep. Doesn't it look like that damn love and BUG? 🤣
+[^2]: Knowledge Planet is a paid community platform for knowledge sharing and communication. If you need more help and support, you can join our Knowledge Planet. ([Newcomer Coupon～](https://t.zsxq.com/BQcpe))

README.zh-cn.md

@@ -137,7 +137,7 @@ FixIt 支持下列语言：
 | :--------------------------- | :---------------------- |
 | [Discussions][discussions]   | 官方 GitHub 讨论区      |
 | [FixIt 主题交流群][qq-group] | 官方 QQ 群：`814031017` |
-| [Hugo FixIt 星球][zsxq]      | 官方知识星球            |
+| [Hugo FixIt 星球][zsxq]      | 官方知识星球[^2]        |
 
 [discussions]: https://github.com/hugo-fixit/FixIt/discussions
 [pulls]: https://github.com/hugo-fixit/FixIt/pulls
@@ -215,10 +215,6 @@ FixIt 支持下列语言：
 
 FixIt 根据 **MIT** 许可协议授权。更多信息请查看 [LICENSE 文件](LICENSE)。
 
-## 作者
-
-Follow [Lruihao](https://github.com/Lruihao "在 GitHub 上关注我")
-
 ## 赞助支持
 
 [![Open Source Love](https://badges.frapsoft.com/os/v1/open-source.svg?v=103)](https://github.com/hugo-fixit/FixIt)
@@ -229,6 +225,12 @@ Follow [Lruihao](https://github.com/Lruihao "在 GitHub 上关注我")
 - [支付宝](images/alipay.jpg)
 - [PayPal](https://paypal.me/Lruihao)
 
+## 作者
+
+Follow [Lruihao](https://github.com/Lruihao "在 GitHub 上关注我")
+
 如果你喜欢这个主题，别忘了留下一颗 ⭐️ 哦，谢谢！
 
+<!-- footnote reference definition -->
 [^1]: 主题名称趣谈：“leave it, keep it，love it，fix it”。出现又离开，爱而不得。这像不像那该死的爱情和 BUG 呢？🤣
+[^2]: 知识星球是一个付费的知识分享和交流社区平台。如果你需要更多的帮助和支持，可以加入我们的知识星球。（[新人优惠券～](https://t.zsxq.com/BQcpe)）

assets/css/_shortcodes/_timeline.scss

@@ -11,17 +11,21 @@
   &[data-animation] {
     .#{$prefix}timeline-item::before {
       border-color: var(--timeline-color);
-      animation-name: change-border-color;
-      animation-duration: 0.9s;
-      animation-direction: alternate;
+      animation-name: border-color-fade;
+      animation-duration: 2s;
       animation-iteration-count: infinite;
-      animation-timing-function: cubic-bezier(0.4, 0, 1, 1);
       animation-delay: calc(var(--timeline-index) * 0.3s);
 
-      @keyframes change-border-color {
-        to {
+      @keyframes border-color-fade {
+        0% {
+          border-color: var(--timeline-color);
+        }
+        50% {
           border-color: var(--timeline-circle-color);
         }
+        100% {
+          border-color: var(--timeline-color);
+        }
       }
     }
   }