docs: add mobile adaptation for the next step's style

website/docs/en/guide/start/features.mdx

@@ -97,7 +97,7 @@ Here are all the main features supported by Rsbuild.
 | -------------------------- | ---------------------------------------------------------------------------------------------------------------------------- | ---------------------------------------------------------------------------------------------------------------------------------------- |
 | Chunk splitting            | A variety of chunk splitting strategies are built into Rsbuild to automatically split the bundle into files of moderate size | <ul><li>[Code splitting](/guide/optimization/code-splitting)</li><li>[performance.chunkSplit](/config/performance/chunk-split)</li></ul> |
 | Print file size            | After the production build, All bundle sizes is displayed by default                                                         | <ul><li>[performance.printFileSize](/config/performance/print-file-size)</li></ul>                                                       |
-| Analyze build process      | Optional feature, use Rsdoctor to analyze build process                                                                      | <ul><li>[使用 Rsdoctor](/guide/debug/rsdoctor)</li></ul>                                                                                 |
+| Analyze build process      | Optional feature, use Rsdoctor to analyze build process                                                                      | <ul><li>[Use Rsdoctor](/guide/debug/rsdoctor)</li></ul>                                                                                  |
 | Analyze bundle size        | Optional feature, analyze bundle size through Bundle Analyzer                                                                | <ul><li>[performance.bundleAnalyze](/config/performance/bundle-analyze)</li></ul>                                                        |
 | Remove console             | Optional feature, remove `console.[methodName]` in code                                                                      | <ul><li>[performance.removeConsole](/config/performance/remove-console)</li ></ul>                                                       |
 | Optimize moment.js size    | Optional feature, remove the redundant locale files of moment.js                                                             | <ul><li>[performance.removeMomentLocale](/config/performance/remove-moment-locale)</li></ul>                                             |

website/theme/components/Step.module.scss

@@ -16,6 +16,13 @@
   }
 }
 
+@media (max-width: 768px) {
+  .step {
+    flex: 0 100%;
+    margin-bottom: 20px;
+  }
+}
+
 .title {
   font-size: 20px;
   line-height: 1.4;