diff --git a/app.py b/app.py
index 973643a..c54447d 100644
--- a/app.py
+++ b/app.py
@@ -21,8 +21,6 @@ st.set_page_config(
 # ─── Custom CSS ──────────────────────────────────────────────────────────────
 st.markdown("""
 <style>
-@import url('https://fonts.googleapis.com/css2?family=Noto+Serif+SC:wght@400;600;700&family=JetBrains+Mono:wght@400;500&display=swap');
-
 :root {
     --bg-dark: #0a1628;
     --bg-card: #0f2040;
@@ -35,7 +33,7 @@ st.markdown("""
 }
 
 html, body, [class*="css"] {
-    font-family: 'Noto Serif SC', serif;
+    font-family: "PingFang SC", "Microsoft YaHei", "Noto Serif SC", serif;
     background-color: var(--bg-dark);
     color: var(--text-primary);
 }
@@ -54,7 +52,7 @@ html, body, [class*="css"] {
 [data-testid="stSidebar"] .stSelectbox label {
     color: var(--accent-green) !important;
     font-size: 0.82rem;
-    font-family: 'JetBrains Mono', monospace;
+    font-family: "JetBrains Mono", "Fira Code", "Source Code Pro", monospace;
     letter-spacing: 0.05em;
 }
 
@@ -76,7 +74,7 @@ html, body, [class*="css"] {
     background: linear-gradient(90deg, var(--accent-green), var(--accent-blue));
 }
 .metric-value {
-    font-family: 'JetBrains Mono', monospace;
+    font-family: "JetBrains Mono", "Fira Code", "Source Code Pro", monospace;
     font-size: 2.2rem;
     font-weight: 700;
     color: var(--accent-green);
@@ -96,7 +94,7 @@ html, body, [class*="css"] {
 /* Section headers */
 .section-header {
     font-size: 0.75rem;
-    font-family: 'JetBrains Mono', monospace;
+    font-family: "JetBrains Mono", "Fira Code", "Source Code Pro", monospace;
     letter-spacing: 0.15em;
     color: var(--accent-gold);
     text-transform: uppercase;
@@ -113,7 +111,7 @@ html, body, [class*="css"] {
     border: 1px solid var(--accent-green);
     border-radius: 6px;
     padding: 4px 12px;
-    font-family: 'JetBrains Mono', monospace;
+    font-family: "JetBrains Mono", "Fira Code", "Source Code Pro", monospace;
     font-size: 0.78rem;
     color: var(--accent-green);
     margin: 3px;
@@ -128,7 +126,7 @@ html, body, [class*="css"] {
     margin: 10px 0;
 }
 .rec-rank {
-    font-family: 'JetBrains Mono', monospace;
+    font-family: "JetBrains Mono", "Fira Code", "Source Code Pro", monospace;
     font-size: 1.5rem;
     color: var(--accent-gold);
     font-weight: 700;
@@ -139,7 +137,7 @@ html, body, [class*="css"] {
     font-weight: 600;
 }
 .rec-score {
-    font-family: 'JetBrains Mono', monospace;
+    font-family: "JetBrains Mono", "Fira Code", "Source Code Pro", monospace;
     font-size: 0.85rem;
     color: var(--accent-blue);
 }
@@ -155,7 +153,7 @@ html, body, [class*="css"] {
     line-height: 1.2;
 }
 .hero-sub {
-    font-family: 'JetBrains Mono', monospace;
+    font-family: "JetBrains Mono", "Fira Code", "Source Code Pro", monospace;
     font-size: 0.8rem;
     color: var(--text-muted);
     letter-spacing: 0.1em;