diff --git a/assets/scss/variables.scss b/assets/scss/variables.scss
index 97810a1..04cdbba 100644
--- a/assets/scss/variables.scss
+++ b/assets/scss/variables.scss
@@ -42,11 +42,17 @@ $defaultTagColors: #fff, #fff, #fff, #fff, #fff;
 :root {
     --sys-font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Droid Sans", "Helvetica Neue";
     --zh-font-family: "PingFang SC", "Hiragino Sans GB", "Droid Sans Fallback", "Microsoft YaHei";
+    --cjk-font-family: "Source Han Sans", "Noto Sans CJK";
 
-    --base-font-family: "Lato", var(--sys-font-family), var(--zh-font-family), sans-serif;
+    --base-font-family: "Lato", var(--sys-font-family), var(--zh-font-family), var(--cjk-font-family), sans-serif;
     --code-font-family: Menlo, Monaco, Consolas, "Courier New", var(--zh-font-family), monospace;
 }
 
+:lang(ja) {
+    --ja-font-family: "Hiragino Kaku Gothic ProN", "Meiryo", "Noto Sans CJK JP";
+    --base-font-family: "Lato", var(--sys-font-family), var(--ja-font-family), var(--cjk-font-family), sans-serif;
+}
+
 /*
 *   Card style
 */