fix mobile style

rust-src/.cargo/config.toml

 [source.crates-io]
 registry = "https://github.com/rust-lang/crates.io-index"
-replace-with = 'ustc'
+replace-with = 'tuna'
 
-[source.ustc]
-registry = "git://mirrors.ustc.edu.cn/crates.io-index"
+[source.tuna]
+registry = "https://mirrors.tuna.tsinghua.edu.cn/git/crates.io-index.git"

src/styles/core.scss

@@ -14,7 +14,7 @@ html {
   }
 }
 /* Mobile */
-@media screen and (max-width: 1000px) {
+@media screen and (max-width: 1080px) {
   html {
     font-size: 10px;
   }