diff --git a/public/images/main_utm_mobile.png b/public/images/main_utm_mobile.png
new file mode 100644
index 0000000..9e90094
Binary files /dev/null and b/public/images/main_utm_mobile.png differ
diff --git a/src/components/SubHero.jsx b/src/components/SubHero.jsx
index 274dde7..96b02b9 100644
--- a/src/components/SubHero.jsx
+++ b/src/components/SubHero.jsx
@@ -105,7 +105,8 @@ function NetworkGlobe() {
           const d = Math.sqrt(dx * dx + dy * dy + dz * dz);
           if (d < 0.55) {
             const depth = (a.sz + b.sz) * 0.5;
-            const alpha = Math.max(0, 0.05 + (depth + 1) * 0.1) * (1 - d / 0.55);
+            const alpha =
+              Math.max(0, 0.05 + (depth + 1) * 0.1) * (1 - d / 0.55);
             const aHex = Math.round(Math.min(255, alpha * 255))
               .toString(16)
               .padStart(2, "0");
@@ -134,7 +135,14 @@ function NetworkGlobe() {
           .toString(16)
           .padStart(2, "0");
 
-        const glow = ctx.createRadialGradient(n.sx, n.sy, 0, n.sx, n.sy, r * 3.5);
+        const glow = ctx.createRadialGradient(
+          n.sx,
+          n.sy,
+          0,
+          n.sx,
+          n.sy,
+          r * 3.5,
+        );
         glow.addColorStop(0, n.color + gHex);
         glow.addColorStop(1, n.color + "00");
         ctx.beginPath();
@@ -172,7 +180,12 @@ function NetworkGlobe() {
 function TitleLine({ children, delay }) {
   return (
     <span className="sh4-title-line">
-      <motion.span className="sh4-title-line-inner" initial={{ y: "105%" }} animate={{ y: "0%" }} transition={{ duration: 1.1, delay, ease: [0.16, 1, 0.3, 1] }}>
+      <motion.span
+        className="sh4-title-line-inner"
+        initial={{ y: "105%" }}
+        animate={{ y: "0%" }}
+        transition={{ duration: 1.1, delay, ease: [0.16, 1, 0.3, 1] }}
+      >
         {children}
       </motion.span>
     </span>
@@ -202,7 +215,9 @@ export default function SubHero({ title, desc, navItems, rightSlot }) {
         ))
       : // JSX: <br/>로 나뉜 형태 → 직접 TitleLine 배열로 변환
         (() => {
-          const children = Array.isArray(title.props?.children) ? title.props.children : [title];
+          const children = Array.isArray(title.props?.children)
+            ? title.props.children
+            : [title];
           const lines = [];
           let current = [];
           children.forEach((child, i) => {
@@ -229,21 +244,39 @@ export default function SubHero({ title, desc, navItems, rightSlot }) {
         <div className="sh4-inner">
           <div className="sh4-left">
             {/* // 브레드크럼 */}
-            <motion.nav className="sh4-breadcrumb" initial={{ opacity: 0, y: 8 }} animate={{ opacity: 1, y: 0 }} transition={{ duration: 0.5, ease: [0.16, 1, 0.3, 1] }} aria-label="breadcrumb">
+            <motion.nav
+              className="sh4-breadcrumb"
+              initial={{ opacity: 0, y: 8 }}
+              animate={{ opacity: 1, y: 0 }}
+              transition={{ duration: 0.5, ease: [0.16, 1, 0.3, 1] }}
+              aria-label="breadcrumb"
+            >
               <Link to="/" className="sh4-breadcrumb-item">
-                <svg width="14" height="14" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="2">
+                <svg
+                  width="14"
+                  height="14"
+                  viewBox="0 0 24 24"
+                  fill="none"
+                  stroke="currentColor"
+                  strokeWidth="2"
+                >
                   <path d="M3 9l9-7 9 7v11a2 2 0 01-2 2H5a2 2 0 01-2-2z" />
                   <polyline points="9 22 9 12 15 12 15 22" />
                 </svg>
               </Link>
               <span className="sh4-breadcrumb-sep">/</span>
-              <Link to={"/" + pathname.split("/")[1]} className="sh4-breadcrumb-item">
+              <Link
+                to={"/" + pathname.split("/")[1]}
+                className="sh4-breadcrumb-item"
+              >
                 {menuMap["/" + pathname.split("/")[1]]?.label}
               </Link>
               {pathname.split("/")[2] && (
                 <>
                   <span className="sh4-breadcrumb-sep">/</span>
-                  <span className="sh4-breadcrumb-item sh4-breadcrumb-item--active">{navItems?.find((n) => n.to === pathname)?.label}</span>
+                  <span className="sh4-breadcrumb-item sh4-breadcrumb-item--active">
+                    {navItems?.find((n) => n.to === pathname)?.label}
+                  </span>
                 </>
               )}
             </motion.nav>
@@ -255,7 +288,11 @@ export default function SubHero({ title, desc, navItems, rightSlot }) {
                 animate={{ opacity: 1, y: 0 }}
                 transition={{
                   duration: 0.6,
-                  delay: 0.1 + (typeof title === "string" ? title.split("\n").length : 2) * 0.1 + 0.15,
+                  delay:
+                    0.1 +
+                    (typeof title === "string" ? title.split("\n").length : 2) *
+                      0.1 +
+                    0.15,
                   ease: [0.16, 1, 0.3, 1],
                 }}
               >
@@ -265,7 +302,12 @@ export default function SubHero({ title, desc, navItems, rightSlot }) {
           </div>
 
           {rightSlot && (
-            <motion.div className="sh4-right" initial={{ opacity: 0 }} animate={{ opacity: 1 }} transition={{ duration: 1, delay: 0.3 }}>
+            <motion.div
+              className="sh4-right"
+              initial={{ opacity: 0 }}
+              animate={{ opacity: 1 }}
+              transition={{ duration: 1, delay: 0.3 }}
+            >
               {rightSlot}
             </motion.div>
           )}
@@ -273,10 +315,18 @@ export default function SubHero({ title, desc, navItems, rightSlot }) {
       </section>
 
       {navItems?.length > 1 && (
-        <nav ref={navRef} className={`sh4-nav-wrap${isPill ? " is-pill" : ""}`} aria-label="Sub Navigation">
+        <nav
+          ref={navRef}
+          className={`sh4-nav-wrap${isPill ? " is-pill" : ""}`}
+          aria-label="Sub Navigation"
+        >
           <div className="sh4-nav">
             {navItems.map((item) => (
-              <Link key={item.to} to={item.to} className={`sh4-nav-tab${pathname === item.to ? " sh4-nav-tab--active" : ""}`}>
+              <Link
+                key={item.to}
+                to={item.to}
+                className={`sh4-nav-tab${pathname === item.to ? " sh4-nav-tab--active" : ""}`}
+              >
                 {item.label}
               </Link>
             ))}
diff --git a/src/components/main/MainUtm.jsx b/src/components/main/MainUtm.jsx
index 8536cad..a0fc5e1 100644
--- a/src/components/main/MainUtm.jsx
+++ b/src/components/main/MainUtm.jsx
@@ -1,6 +1,5 @@
 import { useRef, useEffect, useState } from "react";
 import { motion, useInView, AnimatePresence } from "framer-motion";
-import utmMapImg from "../../../public/images/main_utm_img.png";
 import { Link } from "react-router-dom";
 
 const ease = [0.22, 1, 0.36, 1];
@@ -339,20 +338,29 @@ function MainUtm() {
           animate={inView ? { opacity: 1, y: 0 } : {}}
           transition={{ duration: 0.9, delay: 0.32, ease }}
         >
-          <div className="utm-hero__map-wrap">
-            <img
-              src={utmMapImg}
-              alt="UTM 관제 지도"
-              className="utm-hero__map-img"
-              draggable="false"
-            />
+          {/* PC 전용 — 애니메이션 */}
+          <div className="utm-hero__pc-only">
+            <div className="utm-hero__map-wrap">
+              <img
+                src={`${import.meta.env.BASE_URL}images/main_utm_img.png`}
+                alt="UTM 관제 지도"
+                className="utm-hero__map-img"
+                draggable="false"
+              />
+            </div>
+            <UtmSystemPanel phase={phase} activeRow={activeRow} />
+            <div className="utm-cursor" ref={cursorRef}>
+              <div className="utm-cursor__dot" />
+            </div>
           </div>
 
-          <UtmSystemPanel phase={phase} activeRow={activeRow} />
-
-          {/* 커서 */}
-          <div className="utm-cursor" ref={cursorRef}>
-            <div className="utm-cursor__dot" />
+          {/* 모바일 전용 — 이미지 */}
+          <div className="utm-hero__mobile-only">
+            <img
+              src={`${import.meta.env.BASE_URL}images/main_utm_mobile.png`}
+              alt="UTM 관제 시스템"
+              className="utm-hero__mobile-img"
+            />
           </div>
         </motion.div>
       </div>
diff --git a/src/css/main.css b/src/css/main.css
index f450ded..0d2f97a 100644
--- a/src/css/main.css
+++ b/src/css/main.css
@@ -172,6 +172,8 @@ body{overflow-x:hidden;}
 .utm-hero__chips { list-style: none; display: flex; flex-wrap: wrap; justify-content: center; gap: 10px; margin: 0 0 16px; padding: 0; }
 .utm-hero__link { display: inline-flex; align-items: center; gap: 8px; font-size: 13px; font-weight: 700; color: #fff; background: #1a1f5e; padding: 7px 16px; border-radius: 999px; text-decoration: none; transition: gap 0.2s; }
 .utm-hero__link:hover { gap: 12px; }
+.utm-hero__pc-only { display: block; }
+.utm-hero__mobile-only { display: none; }
 /* UTM 반응형 */
 @media (max-width: 1280px) {
   .utm-panel { left: -80px; width: 320px; }
@@ -219,6 +221,11 @@ body{overflow-x:hidden;}
   .utm-confirm__title { font-size: 13px; }
   .utm-confirm__cancel, .utm-confirm__ok { font-size: 12px; padding: 8px; }
   .utm-cursor { display: none; }
+  .utm-hero__mobile-img { width: 100%; height: 100%;  border-radius: 12px; }
+  .utm-hero__mobile-only { display: block; width: 100%; aspect-ratio: 16/9; overflow: hidden; border-radius: 12px; }
+  .utm-hero__pc-only { display: none; }
+  .utm-hero__showcase { box-shadow: none; }
+
 }