diff --git a/src/components/Dropdown/DropdownPopover.tsx b/src/components/Dropdown/DropdownPopover.tsx
index 1cce004..bbb2767 100644
--- a/src/components/Dropdown/DropdownPopover.tsx
+++ b/src/components/Dropdown/DropdownPopover.tsx
@@ -65,8 +65,8 @@ const DropdownPopover = ({
   const isFilter = variant === "filter";
 
   const sizeClass = isFilter
-    ? "md:w-[24.375rem] md:h-[52.75rem]"
-    : "md:w-[23rem] md:h-[26.25rem]";
+    ? "sm:w-[24.375rem] sm:h-[52.75rem]"
+    : "sm:w-[23rem] sm:h-[26.25rem]";
 
   const colorClass = isFilter
     ? "bg-white border-gray-200"
@@ -76,7 +76,7 @@ const DropdownPopover = ({
     "z-[9999]",
     "rounded-2xl p-6 pr-5 pb-6 pl-5",
     "shadow-[0px_2px_8px_0px_#78748640]",
-    "border fixed md:absolute w-full h-full left-0 top-0",
+    "border fixed sm:absolute w-full h-full left-0 top-0",
     colorClass,
     sizeClass,
   );
diff --git a/src/components/Modal/AlertModalLayout.tsx b/src/components/Modal/AlertModalLayout.tsx
index 754006c..2461138 100644
--- a/src/components/Modal/AlertModalLayout.tsx
+++ b/src/components/Modal/AlertModalLayout.tsx
@@ -35,15 +35,15 @@ export default function AlertModalLayout({
         bg-white rounded-lg text-center relative
         ${
           type === "message"
-            ? "w-[20.625rem] h-[13.75rem] md:w-[33.75rem] md:h-[15.625rem]"
-            : "w-[18.625rem] h-[11.5rem] md:w-[18.625rem] md:h-[11.5rem]"
+            ? "w-[20.625rem] h-[13.75rem] sm:w-[33.75rem] sm:h-[15.625rem]"
+            : "w-[18.625rem] h-[11.5rem] sm:w-[19.625rem] sm:h-[11.5rem]"
         }
         p-6 flex flex-col justify-center items-center
       `}
       onClick={(e) => e.stopPropagation()}
     >
-      {Icon && <Icon className="w-6 h-6 mb-6 mx-auto shrink-0" />}{" "}
-      <p className="text-gray-900 text-base md:text-lg mb-[1rem]">{message}</p>
+      {Icon && <Icon className="w-6 h-6 mb-3.5 mx-auto shrink-0" />}{" "}
+      <p className="text-gray-900 text-base sm:text-lg mb-[1rem]">{message}</p>
       <div
         className={
           type === "message"
diff --git a/src/components/Modal/ConfirmModalLayout.tsx b/src/components/Modal/ConfirmModalLayout.tsx
index cbe9ae6..26a1dde 100644
--- a/src/components/Modal/ConfirmModalLayout.tsx
+++ b/src/components/Modal/ConfirmModalLayout.tsx
@@ -25,21 +25,22 @@ export default function ConfirmModalLayout({
   const Icon = iconType !== "none" ? ICONS[iconType] : null;
 
   return (
-    <div className="w-[18.625rem] md:w-[18.625rem] h-[11.5rem] bg-white rounded-lg p-6 text-center flex flex-col justify-center items-center">
+    <div className="w-[18.625rem] sm:w-[18.625rem] h-[11.5rem] bg-white rounded-lg p-6 text-center flex flex-col justify-center items-center">
       {Icon && <Icon className="w-6 h-6 mb-3" />}
-      <p className="text-gray-900 text-base md:text-lg font-normal mb-6">
+
+      <p className="text-gray-900 text-base sm:text-lg font-normal mb-6">
         {message}
       </p>
       <div className="flex justify-end gap-3">
         <button
           onClick={onClose}
-          className="w-[5rem] h-[2.375rem] border border-red-500 text-red-500 rounded-md cursor-pointer"
+          className="w-[5rem] h-[2.375rem] border border-red-500 text-red-500 rounded-[6px] cursor-pointer"
         >
           {cancelText}
         </button>
         <button
           onClick={onConfirm}
-          className="w-[5rem] h-[2.375rem] bg-red-500 text-white rounded-md cursor-pointer"
+          className="w-[5rem] h-[2.375rem] bg-red-500 text-white rounded-[6px] cursor-pointer"
         >
           {confirmText}
         </button>
diff --git a/src/components/Modal/Modal.tsx b/src/components/Modal/Modal.tsx
index f864a5a..a155a70 100644
--- a/src/components/Modal/Modal.tsx
+++ b/src/components/Modal/Modal.tsx
@@ -4,7 +4,6 @@ import AlertModalLayout from "./AlertModalLayout";
 import ConfirmModalLayout from "./ConfirmModalLayout";
 
 import { useModalStore } from "@/store/useModalStore";
-
 export default function Modal() {
   const { isOpen, options, closeModal } = useModalStore();
 
@@ -13,8 +12,13 @@ export default function Modal() {
 
     const handleKeyDown = (e: KeyboardEvent) => {
       if (e.key === "Enter") {
-        e.preventDefault(); // 🔥 기본 엔터 동작 차단 (버튼 재실행 방지)
-        e.stopPropagation(); // 이벤트 버블링도 막기
+        e.preventDefault();
+        e.stopPropagation();
+
+        options?.onClose?.();
+        e.preventDefault();
+        e.stopPropagation();
+
         if (options?.type === "confirm") {
           options.onConfirm?.();
         }
diff --git a/src/components/SearchInput.tsx b/src/components/SearchInput.tsx
index 692feb1..9580f2a 100644
--- a/src/components/SearchInput.tsx
+++ b/src/components/SearchInput.tsx
@@ -26,7 +26,7 @@ export default function SearchInput() {
   return (
     <form
       onSubmit={handleSubmit}
-      className="relative flex w-full md:max-w-[28.125rem] pl-10 rounded-[0.625rem] p-[0.625rem] bg-gray-10 border border-transparent"
+      className="relative flex w-full sm:max-w-[28.125rem] pl-10 rounded-[0.625rem] p-[0.625rem] bg-gray-10 border border-transparent"
     >
       <div className="flex items-center w-full">
         <img
diff --git a/src/layouts/Footer.tsx b/src/layouts/Footer.tsx
index 96f72c7..0ed3e77 100644
--- a/src/layouts/Footer.tsx
+++ b/src/layouts/Footer.tsx
@@ -43,7 +43,7 @@ export default function Footer() {
 
         <div className="flex flex-col gap-3 sm:hidden mt-4">
           <div className="flex flex-wrap gap-4 text-sm justify-between">
-            <div className="flex flex-wrap gap-4 text-sm font-normal leading-[1.375rem] text-gray-50">
+            <div className="flex flex-wrap gap-6 text-sm font-normal leading-[1.375rem] text-gray-50">
               <a href="/privacy">Privacy Policy</a>
               <a href="/faq">FAQ</a>
             </div>
@@ -72,7 +72,7 @@ export default function Footer() {
             </div>
           </div>
 
-          <div className="text-xs text-gray-50 leading-[1rem] font-normal">
+          <div className="text-xs text-gray-50 leading-[1rem] font-normal pt-[1rem]">
             ©codeit - 2025
           </div>
         </div>
diff --git a/src/pages/NoticeListPage/NoticeListPage.tsx b/src/pages/NoticeListPage/NoticeListPage.tsx
index bcb228d..d43b08b 100644
--- a/src/pages/NoticeListPage/NoticeListPage.tsx
+++ b/src/pages/NoticeListPage/NoticeListPage.tsx
@@ -56,7 +56,7 @@ export default function NoticeListPage() {
   };
 
   return (
-    <section className="w-full">
+    <section className="w-full overflow-hidden">
       {user?.type && customNotices.length > 0 && (
         <CustomNoticeSection customNotices={customNotices} />
       )}
diff --git a/src/pages/NoticeListPage/TotalNoticeSection.tsx b/src/pages/NoticeListPage/TotalNoticeSection.tsx
index 8f5b6c8..a378594 100644
--- a/src/pages/NoticeListPage/TotalNoticeSection.tsx
+++ b/src/pages/NoticeListPage/TotalNoticeSection.tsx
@@ -26,9 +26,9 @@ export default function TotalNoticeSection({
   };
 
   return (
-    <section className="mt-10 lg:w-[60.25rem] md:w-[42.375rem] mx-auto ">
+    <section className="mt-10 lg:w-[60.25rem] sm:w-[42.375rem] mx-auto">
       <div className="flex justify-between items-center mb-4">
-        <h2 className="font-bold text-[1.25rem] md:text-[1.75rem] tracking-[-0.02em]  text-black p-4 pl-0">
+        <h2 className="font-bold text-[1.25rem] sm:text-[1.75rem] tracking-[-0.02em]  text-black p-4 pl-0">
           전체 공고
         </h2>
         <div className="flex px-4 pr-0 gap-[0.625rem]">