refactor(ui): [UI8] 彻底移除遗留Card并补充下拉框中文化

client/src/index.css

@@ -42,7 +42,7 @@
 
   /* Cards */
   .card-std {
-    @apply bg-white p-6 rounded-xl shadow-sm ring-1 ring-zinc-900/5 transition-all;
+    @apply bg-white rounded-xl shadow-sm ring-1 ring-zinc-900/5 transition-all;
   }
 
   .card-title {