Update app.py

app.py

@@ -201,7 +201,7 @@ st.markdown(f"""
   content: "";
   position: absolute; inset: 0;   /* 컬럼 영역에만 덮기 */
   background: url('{BG_URL}') center / cover no-repeat;
-  background-position: center 55%;
+  background-position: center 45%;
   opacity: .15;                    /* 투명도 80% */
   pointer-events: none;
   border-radius: 0px;            /* 모서리 둥글게(원하면 제거) */