/* 폰트 정의 */
@font-face {
	font-family: 'Spoqa Han Sans Neo';
	src: url('../font/SpoqaHanSansNeo-Thin.woff2') format('woff2');
	font-weight: 100;
	font-style: normal;
}

@font-face {
	font-family: 'Spoqa Han Sans Neo';
	src: url('../font/SpoqaHanSansNeo-Light.woff2') format('woff2');
	font-weight: 300;
	font-style: normal;
}

@font-face {
	font-family: 'Spoqa Han Sans Neo';
	src: url('../font/SpoqaHanSansNeo-Regular.woff2') format('woff2');
	font-weight: 400;
	font-style: normal;
}

@font-face {
	font-family: 'Spoqa Han Sans Neo';
	src: url('../font/SpoqaHanSansNeo-Medium.woff2') format('woff2');
	font-weight: 500;
	font-style: normal;
}

@font-face {
	font-family: 'Spoqa Han Sans Neo';
	src: url('../font/SpoqaHanSansNeo-Bold.woff2') format('woff2');
	font-weight: 700;
	font-style: normal;
}

/* 기본 리셋 */
* {
	margin: 0;
	padding: 0;
	box-sizing: border-box;
}

html {
	scroll-behavior: smooth;
}

html, body {
	height: 100%;
	height: -webkit-fill-available;
}

body {
	font-family: 'Spoqa Han Sans Neo', sans-serif;
	line-height: 1.6;
	color: #333;
	background: #f8f9fb;
	padding-top: 60px;
	display: flex;
	flex-direction: column;
}

a {
	color: #2c5282;
	text-decoration: none;
}

a:hover {
	text-decoration: underline;
}

.right {
	text-align: right;
}

.desc {
	color: #999;
}

blockquote {
	background: #eee;
	padding: 10px 20px;
}

.content-body blockquote h3 {
	margin-top: 15px;
}
.content-body blockquote p:last-child {
	margin-bottom: 15px;
}

.content-body .tool-name {
	font-size: 1.6rem;
}

.content-body .tool-box {
	background: #fefefe;
	padding: 10px 20px;
	margin-bottom: 20px;
	border-radius: 0.5rem;
	box-shadow: 0px 0px 4px #ccc;
}

.content-body .tool-header {
	display: flex;
	align-items: center;
	margin-bottom: 20px;
	font-size: 1.4rem;
	margin-top: 10px;
}

.content-body .tool-header img {
	object-fit: contain;
}

.content-body .tool-title {
	margin: 0;
	padding-left: 20px;
	align-content: center;
}

.content-body .tool-title h4 {
	margin: 0px;
}

.content-body .tool-tags {
	font-size: 0.88rem;
}

.content-body .tool-tags span {
	background: #dff6ca;
	padding: 2px 5px;
	border-radius: 6px;
}

.content-body .tool-tags .pick {
	background: #ceedfb;
	font-weight: bold;
}
.content-body .tool-tags .cons {
	background: #fbcece;
}

.content-body .tool-link {
	display: inline-block;
	margin-bottom: 15px;
	padding: 6px 30px;
	background: #fff;
	border: 2px solid #2c5282;
	color: #2c5282;
	border-radius: 6px;
	text-decoration: none;
	transition: background 0.2s ease;
}

.content-body .tool-link:hover{
	border-bottom-color: #2c5282;
	background-color: #eee;
}

.content-body .warn {
	background: #fceec7;
	padding: 10px 20px;
	border-radius: 0.5rem;
	box-shadow: 0px 0px 4px #ccc;
	margin-bottom: 20px;
}

.content-body .info {
	background: #ebf5ff;
	padding: 10px 20px;
	border-radius: 0.5rem;
	box-shadow: 0px 0px 4px #ccc;
	margin-bottom: 20px;
}

.content-body h4 {
	font-size: 1.2rem;
	margin: 10px 0px;
}

.content-body .warn p {
	margin: 10px 0px;
}

.content-body summary {
	cursor: pointer;
	background: #eee;
	padding: 5px 20px;	
}
.content-body details + p {
	margin-top: 20px;
}

.content-body .details-wrap {
	background: #eee;
	padding: 10px 20px;
}

.content-body .details-wrap p:first-child {
	margin-top: 15px;
}
.content-body blockquote p:last-child {
	margin-bottom: 15px;
}

.content-body .pad-small {
	font-size: small;
	padding: 2px 10px;
	margin-bottom: 0px;
}
.content-body .pad-small:hover {
	background: #fff;
}

.content-body .trademark-desc {
	color: #888;
	font-size: 0.7rem;
	line-height:normal;
}
.content-body .img-wrapper-center{
	text-align: center;
}


/* 내비게이션 바 */
.navbar {
	background: rgba(248, 249, 251, 0.8);
	backdrop-filter: blur(6px);
	border-bottom: 1px solid #e8eaed;
	position: fixed;
	top: 0;
	left: 0;
	right: 0;
	width: 100%;
	z-index: 100;
}

.nav-container {
	max-width: 1260px;
	margin: 0 auto;
	padding: 0 30px;
	display: flex;
	justify-content: space-between;
	align-items: center;
	height: 60px;
}

.nav-logo-section {
	display: flex;
	align-items: center;
	gap: 15px;
}

.nav-menu-wrapper {
	display: flex;
	align-items: center;
}

/* 사이드바 토글 체크박스 숨기기 */
.sidebar-toggle-input {
	display: none;
}

.hamburger-menu {
	display: none;
	flex-direction: column;
	gap: 4px;
	cursor: pointer;
	padding: 8px;
	background: none;
	border: none;
	position: relative;
	width: 36px;
	height: 36px;
	justify-content: center;
	align-items: center;
}

.hamburger-menu span {
	display: block;
	width: 20px;
	height: 2px;
	background: #333;
	transition: all 0.3s cubic-bezier(0.4, 0.0, 0.2, 1);
	position: absolute;
}

.hamburger-menu span:nth-child(1) {
	top: 10px;
}

.hamburger-menu span:nth-child(2) {
	top: 17px;
}

.hamburger-menu span:nth-child(3) {
	top: 24px;
}

/* 체크박스 체크 시 햄버거 메뉴가 X로 변경 */
.sidebar-toggle-input:checked ~ nav .hamburger-menu span:nth-child(1),
.sidebar-toggle-input:checked ~ .mobile-sidebar .hamburger-menu span:nth-child(1) {
	top: 17px;
	transform: rotate(45deg);
}

.sidebar-toggle-input:checked ~ nav .hamburger-menu span:nth-child(2),
.sidebar-toggle-input:checked ~ .mobile-sidebar .hamburger-menu span:nth-child(2) {
	opacity: 0;
}

.sidebar-toggle-input:checked ~ nav .hamburger-menu span:nth-child(3),
.sidebar-toggle-input:checked ~ .mobile-sidebar .hamburger-menu span:nth-child(3) {
	top: 17px;
	transform: rotate(-45deg);
}

.nav-logo {
	font-size: 1.3em;
	font-weight: 600;
	color: #333;
	text-decoration: none;
	display: flex;
	align-items: center;
	gap: 8px;
}

.nav-logo:hover {
	text-decoration: none;
	color: #2c5282;
}

.nav-logo-image {
	height: 32px;
	width: auto;
	display: block;
}

.nav-menu {
	list-style: none;
	display: flex;
	gap: 30px;
}

.nav-link {
	color: #666;
	text-decoration: none;
	padding: 8px 12px;
	border-radius: 4px;
	transition: background 0.2s ease, color 0.2s ease;
}

.nav-link:hover {
	background: #f0f0f0;
	color: #333;
	text-decoration: none;
}

.nav-link.active {
	color: #2c5282;
	background: #e8f0f8;
}

/* 컨테이너 */
.container {
	max-width: 1200px;
	margin: 0 auto;
	padding: 0 20px;
}

/* Hero 섹션 */
.hero {
	background: transparent;
	padding: 80px 20px;
	text-align: center;
	border-bottom: 1px solid #e0e0e0;
}

.hero-content h1 {
	font-size: 2.5em;
	margin-bottom: 20px;
	color: #333;
	line-height: 1.3;
}

.hero-description {
	color: #666;
	margin-bottom: 30px;
	line-height: 1.8;
}

.cta-button {
	display: inline-block;
	padding: 12px 30px;
	background: #2c5282;
	color: #fff;
	border-radius: 4px;
	text-decoration: none;
	transition: background 0.2s ease;
}

.cta-button:hover {
	background: #1e3a5f;
	text-decoration: none;
}

.next-button, .content-body .next-button{
	padding: 6px 30px;
	background: #2c5282;
	color: #fff;
	border-bottom: none;
	border-radius: 4px;
	text-decoration: none;
	transition: background 0.2s ease;
}

.next-button:hover {
	background: #1e3a5f;
	text-decoration: none;
}

.disabled {
	background: #e0e0e0 !important;
	color:#1a1a1a;
}

.disabled:hover {
	background: #e0e0e0;
	text-decoration: none;
}

.next-prev-pagination {
	display: flex;
	margin-top: 60px;
	justify-content: space-between;
}

/* Features 섹션 */
.features {
	padding: 60px 20px;
	background: transparent;
}

.features h2 {
	text-align: center;
	font-size: 2em;
	margin-bottom: 40px;
	color: #333;
}

.feature-grid {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
	gap: 30px;
	margin-top: 40px;
}

.feature-card {
	padding: 30px;
	background: #f9f9f9;
	border: 1px solid #e0e0e0;
	border-radius: 4px;
}

.feature-card h3 {
	font-size: 1.3em;
	margin-bottom: 15px;
	color: #333;
}

.feature-card p {
	color: #666;
	margin-bottom: 15px;
	line-height: 1.7;
}

.feature-card a {
	color: #2c5282;
	font-weight: 500;
}

/* CTA 섹션 */
.cta-section {
	padding: 60px 20px;
	text-align: center;
	background: transparent;
	border-top: 1px solid #e0e0e0;
}

.cta-section h2 {
	font-size: 2em;
	margin-bottom: 15px;
	color: #333;
}

.cta-section p {
	color: #666;
	margin-bottom: 30px;
}

.cta-buttons {
	display: flex;
	gap: 15px;
	justify-content: center;
	align-items: center;
	flex-wrap: wrap;
}

/* 모바일 사이드바 숨김 (데스크톱) */
.mobile-sidebar {
	display: none !important;
}

main {
	flex: 1;
	display: flex;
	flex-direction: column;
}

/* 사이드바 레이아웃 */
.page-with-sidebar {
	display: flex;
	flex: 1;
	max-width: 1260px;
	margin: 0 auto;
}

.sidebar {
	width: 240px;
	background: #f8f9fb;
	padding: 0;
	position: sticky;
	top: 60px;
	flex-shrink: 0;
	display: flex;
	flex-direction: column;
	align-self: flex-start;
}

.sidebar-content {
	padding: 30px 0;
	overflow-y: auto;
	flex: 1;
	max-height: calc(100vh - 60px);
	/* 스크롤바 숨기기 */
	scrollbar-width: none; /* Firefox */
	-ms-overflow-style: none; /* IE/Edge */
}

.sidebar-content::-webkit-scrollbar {
	display: none; /* Chrome, Safari, Opera */
}

.sidebar h2 {
	font-size: 0.8em;
	margin-bottom: 20px;
	padding: 0 20px;
	color: #888;
	text-transform: uppercase;
	letter-spacing: 1px;
	font-weight: 600;
}

.sidebar-nav {
	display: flex;
	flex-direction: column;
	gap: 5px;
	padding: 0 20px 0 0;
}

.sidebar-nav > a:first-child {
	margin-bottom: 15px;
	padding-bottom: 10px;
	border-bottom: 1px solid #e8eaed;
}

.sidebar-link {
	padding: 5px 15px;
	color: #666;
	text-decoration: none;
	border-radius: 4px;
	transition: background 0.2s ease, color 0.2s ease;
}

.sidebar-link:hover {
	background: #f0f0f0;
	color: #333;
	text-decoration: none;
}

.sidebar-link.active {
	background: #e8f0f8;
	color: #2c5282;
	font-weight: 500;
}

.sidebar-empty {
	color: #999;
	font-size: 0.9em;
	padding: 10px 15px;
	margin: 0 20px;
}

/* 글 정보 */
.article-info {
	font-size: 0.9em;
	padding: 0 20px;
}

.toc-info-section .article-info-item {
	margin: 0 20px 10px 20px;
	padding-bottom: 10px;
	border-bottom: 1px solid #e8eaed;
}

.article-info-item {
	margin-bottom: 10px;
	padding-bottom: 10px;
	border-bottom: 1px solid #e8eaed;
}

.article-info-item:last-child {
	border-bottom: none;
}

.article-info-label {
	color: #888;
	font-size: 0.85em;
	margin-bottom: 5px;
	text-transform: uppercase;
	letter-spacing: 0.5px;
}

.article-info-value {
	color: #333;
	font-weight: 400;
}

/* 메인 콘텐츠 */
.main-content {
	flex: 1;
	min-width: 780px;
	max-width: 780px;
	padding: 60px 20px;
	background: transparent;
	overflow-y: auto;
}

/* TOC (목차) */
.toc-container {
	width: 240px;
	background: #f8f9fb;
	padding: 30px 0;
	position: sticky;
	top: 60px;
	overflow-y: auto;
	flex-shrink: 0;
	align-self: flex-start;
	/* 얇은 스크롤바 */
	scrollbar-width: thin; /* Firefox */
	scrollbar-color: #ccc transparent; /* Firefox: thumb, track */
}

@supports (scrollbar-color: auto) {
	/* Firefox hover 효과를 위한 트릭 */
	.toc-container:hover {
		scrollbar-color: #aaa transparent;
	}
}

.toc-container::-webkit-scrollbar {
	width: 4px; /* Chrome, Safari, Opera */
}

.toc-container::-webkit-scrollbar-track {
	background: transparent;
}

.toc-container::-webkit-scrollbar-thumb {
	background: #ccc;
	border-radius: 2px;
}

.toc-container::-webkit-scrollbar-thumb:hover {
	background: #aaa;
}

.toc-info-section {
	margin-bottom: 30px;
	padding-bottom: 20px;
	border-bottom: 1px solid #e8eaed;
}

.toc-info-section h3 {
	font-size: 0.8em;
	margin-bottom: 15px;
	padding: 0 20px;
	color: #888;
	text-transform: uppercase;
	letter-spacing: 1px;
	font-weight: 600;
}

.toc-info-section .article-info {
	padding: 0;
}

.toc-container h3 {
	font-size: 0.8em;
	margin-bottom: 15px;
	padding: 0 20px;
	color: #888;
	text-transform: uppercase;
	letter-spacing: 1px;
	font-weight: 600;
}

.toc-list {
	list-style: none;
	padding: 0 20px;
	margin: 0;
}

.toc-item.toc-item-h2 .toc-link {
	font-weight: 600;
}

.toc-link {
	display: block;
	color: #666;
	text-decoration: none;
	padding: 6px 12px;
	border-radius: 4px;
	font-size: 0.9em;
	transition: all 0.2s ease;
	border-left: 2px solid transparent;
}

.toc-link:hover {
	background: #f8f9fb;
	color: #333;
	text-decoration: none;
}

.toc-link.active {
	color: #2c5282;
	background: #e8f0f8;
	font-weight: 500;
}

.toc-item-h3 .toc-link {
	padding-left: 24px;
	font-size: 0.85em;
}

.content-placeholder {
	padding: 40px 0;
}

.content-placeholder h1 {
	font-size: 2em;
	margin-bottom: 20px;
	color: #333;
}

.content-placeholder p {
	color: #333;
	line-height: 1.7;
	margin-bottom: 15px;
}

.content-article h1 {
	font-size: 2.5em;
	margin-bottom: 40px;
	color: #1a1a1a;
	font-weight: 700;
	line-height: 1.3;
	letter-spacing: -0.02em;
}

.content-body {
	font-size: 1.0em;
	line-height: 1.8;
	color: #222;
	word-break: keep-all;
	word-wrap: break-word;
}

.content-body h2 {
	font-size: 1.75em;
	margin-top: 60px;
	margin-bottom: 20px;
	color: #1a1a1a;
	font-weight: 700;
	line-height: 1.4;
	letter-spacing: -0.01em;
	scroll-margin-top: 70px;
}

.content-body h2:first-child {
	margin-top: 0;
}

.content-body h3 {
	font-size: 1.35em;
	margin-top: 40px;
	margin-bottom: 16px;
	color: #1a1a1a;
	font-weight: 600;
	line-height: 1.4;
	scroll-margin-top: 70px;
}

.content-body p {
	margin-bottom: 20px;
	line-height: 1.8;
}

.content-body ul, .content-body ol {
	margin-left: 20px;
	margin-bottom: 20px;
	padding-left: 10px;
}

.content-body li {
	margin-bottom: 10px;
	line-height: 1.8;
}

.content-body strong {
	font-weight: 600;
	color: #1a1a1a;
}

.content-body a {
	color: #2563eb;
	text-decoration: none;
	border-bottom: 1px solid #93c5fd;
	transition: border-color 0.2s ease;
}

.content-body a:hover {
	border-bottom-color: #2563eb;
}

.content-body .desc a {
	color: #6286d5;
	text-decoration: none;
	border-bottom: 1px solid #93c5fd;
	transition: border-color 0.2s ease;
}

.content-body .desc a:hover {
	border-bottom-color: #2563eb;
}

.content-body code {
	background: #f1f5f9;
	color: #e11d48;
	padding: 3px 6px;
	border-radius: 4px;
	font-family: 'Menlo', 'Monaco', 'Courier New', monospace, 'Spoqa Han Sans Neo';
	font-size: 0.88em;
}

.content-body pre {
	background: #f8fafc;
	border: 1px solid #e2e8f0;
	padding: 20px;
	border-radius: 6px;
	overflow-x: auto;
	margin-bottom: 20px;
	line-height: 1.6;
}

.content-body pre code {
	background: none;
	color: #1e293b;
	padding: 0;
	border-radius: 0;
	font-size: 0.9em;
}

/* 개인정보처리방침 테이블 */
.privacy-table {
	width: 100%;
	border-collapse: collapse;
	margin: 20px 0;
	font-size: 0.95em;
}

.privacy-table th,
.privacy-table td {
	border: 1px solid #e2e8f0;
	padding: 12px 16px;
	text-align: left;
	vertical-align: top;
}

.privacy-table th {
	background-color: #dadcdd;
	font-weight: 600;
	color: #1a1a1a;
}

.privacy-table td {
	background-color: #ffffff;
	line-height: 1;
}

/* 푸터 */
footer {
	background: #222;
	border-top: none;
	padding: 40px 0;
	min-height: 100px;
	display: flex;
	align-items: center;
	flex-shrink: 0;
}

.footer-container {
	width: 1260px;
	max-width: 100%;
	margin: 0 auto;
	text-align: left;
	color: #aaa;
	font-size: 0.88em;
	line-height: 1.6;
}

.footer-container p {
	margin-bottom: 10px;
}

.footer-container p:last-child {
	margin-bottom: 0;
}

.footer-links {
	margin: 10px 0;
}

.footer-link-btn {
	border: 1px solid #eee;
	padding: 2px 6px;
	display: inline-block;
	text-decoration: none;
	color: #fff;
	margin-right: 5px;
}

.footer-link-btn:hover {
	background-color: #383838;
	text-decoration: none;
}

.copyleft-line {
	display: flex;
	align-items: center;
	gap: 6px;
}

.copyleft-icon {
	width: 1em;
	height: 1em;
	display: inline-block;
	vertical-align: middle;
	color: #aaa;
}

@media (max-width: 1330px) {
	.footer-container {
		padding: 0 30px;
	}
}

/* 반응형 디자인 */
@media (max-width: 1280px) {
	.toc-container {
		display: none;
	}
}

@media (max-width: 1024px) {
	.main-content {
		min-width: auto;
	}
}

@media (max-width: 960px) {
	/* 네비게이션 두 줄로 변경 */
	.nav-container {
		flex-direction: column;
		height: auto;
		padding: 10px 20px;
		gap: 10px;
	}

	.nav-logo-section {
		width: 100%;
		justify-content: center;
	}

	/* 햄버거 메뉴와 네비게이션 메뉴 그룹 */
	.nav-menu-wrapper {
		display: flex;
		align-items: center;
		gap: 10px;
		width: 100%;
	}

	.hamburger-menu {
		display: flex;
		flex-shrink: 0;
	}

	.nav-menu {
		flex: 1;
		overflow-x: auto;
		overflow-y: hidden;
		gap: 10px;
		padding: 5px 0;
		/* 스크롤바 숨기기 */
		scrollbar-width: none;
		-ms-overflow-style: none;
	}

	.nav-menu::-webkit-scrollbar {
		display: none;
	}

	.nav-menu li {
		flex-shrink: 0;
	}

	/* 햄버거 메뉴를 타이틀 왼쪽으로 */
	.nav-logo-section {
		justify-content: center;
		gap: 15px;
		position: relative;
	}

	.nav-menu-wrapper .hamburger-menu {
		display: none;
	}

	.nav-logo-section .hamburger-menu {
		display: flex;
		position: fixed;
		left: 10px;
		top: 10px;
		z-index: 1002;
		transition: left 0.3s ease;
	}

	/* 사이드바 열릴 때 햄버거 메뉴 위치 이동 */
	.sidebar-toggle-input:checked ~ nav .nav-logo-section .hamburger-menu {
		left: 290px;
	}

	/* 메인 네비게이션 메뉴 숨기기 */
	.nav-menu-wrapper {
		display: none;
	}

	/* 모바일 사이드바 표시 */
	.mobile-sidebar {
		display: block !important;
		position: fixed !important;
	}

	/* 데스크톱 사이드바 숨김 */
	.page-with-sidebar > aside:not(.mobile-sidebar) {
		display: none !important;
	}

	.page-with-sidebar .sidebar-toggle,
	.page-with-sidebar .sidebar-content {
		display: none !important;
	}

	/* 사이드바 */
	.mobile-sidebar.sidebar {
		position: fixed;
		left: -280px;
		top: 0;
		width: 280px;
		height: 100vh;
		z-index: 1001;
		background: #f8f9fb;
		transition: left 0.3s ease, box-shadow 0.3s ease;
		box-shadow: none;
		overflow-y: auto;
		display: block !important;
		/* 얇은 스크롤바 */
		scrollbar-width: thin;
		scrollbar-color: #ccc transparent;
	}

	@supports (scrollbar-color: auto) {
		.mobile-sidebar.sidebar:hover {
			scrollbar-color: #aaa transparent;
		}
	}

	.mobile-sidebar.sidebar::-webkit-scrollbar {
		width: 4px;
	}

	.mobile-sidebar.sidebar::-webkit-scrollbar-track {
		background: transparent;
	}

	.mobile-sidebar.sidebar::-webkit-scrollbar-thumb {
		background: #ccc;
		border-radius: 2px;
	}

	.mobile-sidebar.sidebar::-webkit-scrollbar-thumb:hover {
		background: #aaa;
	}

	/* 서브메뉴 토글 라디오 버튼 숨김 */
	.submenu-toggle {
		display: none;
	}

	/* 사이드바 메인 네비게이션 */
	.mobile-sidebar-nav {
		display: block;
		padding: 20px 0 20px 0;
	}

	.mobile-sidebar-title {
		font-size: 1.3em;
		font-weight: 700;
		color: #1a1a1a;
		padding: 0 20px 20px 20px;
		margin: 0 0 20px 0;
		border-bottom: 1px solid #e8eaed;
		display: flex;
		align-items: center;
		gap: 10px;
	}

	.mobile-sidebar-logo {
		height: 36px;
		width: auto;
		display: block;
	}

	.section-link {
		display: block !important;
		padding: 12px 20px;
		color: #666;
		text-decoration: none;
		transition: background 0.2s ease, color 0.2s ease;
		font-weight: 500;
		cursor: pointer;
	}

	.section-link:hover {
		background: #f0f0f0;
		color: #333;
		text-decoration: none;
	}

	.section-link.active {
		color: #2c5282;
		background: #e8f0f8;
	}

	/* 서브메뉴 패널 */
	.sidebar-submenu-panel {
		position: absolute;
		top: 0;
		left: 280px;
		width: 280px;
		height: 100%;
		background: #f8f9fb;
		transition: left 0.3s ease;
		overflow-y: auto;
		/* 얇은 스크롤바 */
		scrollbar-width: thin;
		scrollbar-color: #ccc transparent;
	}

	.sidebar-submenu-panel::-webkit-scrollbar {
		width: 4px;
	}

	.sidebar-submenu-panel::-webkit-scrollbar-track {
		background: transparent;
	}

	.sidebar-submenu-panel::-webkit-scrollbar-thumb {
		background: #ccc;
		border-radius: 2px;
	}

	.sidebar-submenu-panel::-webkit-scrollbar-thumb:hover {
		background: #aaa;
	}

	/* 서브메뉴 헤더 */
	.submenu-header {
		display: flex;
		align-items: center;
		gap: 10px;
		padding: 20px;
		border-bottom: 1px solid #e8eaed;
		position: sticky;
		top: 0;
		background: #f8f9fb;
		z-index: 1;
	}

	.submenu-back {
		cursor: pointer;
		font-size: 1.2em;
		color: #666;
		padding: 5px;
	}

	.submenu-back:hover {
		color: #333;
	}

	.submenu-title {
		font-weight: 600;
		color: #333;
	}

	/* 서브메뉴 컨텐츠 */
	.submenu-content {
		padding: 20px 0;
	}

	.submenu-content > a:first-child {
		margin-bottom: 15px;
		padding-bottom: 10px;
		border-bottom: 1px solid #e8eaed;
	}

	.submenu-link {
		display: block !important;
		padding: 10px 20px;
		color: #666;
		text-decoration: none;
		transition: background 0.2s ease, color 0.2s ease;
		font-size: 0.95em;
	}

	.submenu-link:hover {
		background: #f0f0f0;
		color: #333;
		text-decoration: none;
	}

	.submenu-link.active {
		color: #2c5282;
		background: #e8f0f8;
		font-weight: 500;
	}

	/* 체크박스 체크 시 서브메뉴 슬라이드 인 */
	#submenu-guide-toggle:checked ~ #panel-guide,
	#submenu-tools-toggle:checked ~ #panel-tools,
	#submenu-about-toggle:checked ~ #panel-about {
		left: 0;
	}

	/* 체크박스 체크 시 사이드바 표시 */
	.sidebar-toggle-input:checked ~ .mobile-sidebar {
		left: 0;
		box-shadow: 2px 0 10px rgba(0, 0, 0, 0.1);
		overflow-x: hidden;
	}

	/* 사이드바 오버레이 */
	.sidebar-overlay {
		position: fixed;
		top: 0;
		left: 0;
		width: 100%;
		height: 100vh;
		background: transparent;
		z-index: 1000;
		cursor: pointer;
		opacity: 0;
		pointer-events: none;
		transition: opacity 0.2s ease;
	}

	/* 체크박스 체크 시 오버레이 표시 */
	.sidebar-toggle-input:checked ~ .sidebar-overlay {
		opacity: 1;
		pointer-events: auto;
	}

	.main-content {
		padding: 40px 20px;
		max-width: 100%;
	}
}

/* 테이블 스타일 */
.content-body table {
	width: 100%;
	border-collapse: collapse;
	margin: 1em 0;
	background: #fff;
}

.content-body table thead {
	background-color: #f5f5f5;
}

.content-body table th,
.content-body table td {
	border: 1px solid #ddd;
	padding: 12px;
	text-align: left;
}

.content-body table th {
	font-weight: 600;
	color: #333;
}

@media (max-width: 768px) {
	.nav-container {
		flex-direction: column;
		height: auto;
		padding: 10px 20px;
	}

	.nav-menu-wrapper {
		position: relative;
	}

	.nav-menu-wrapper::after {
		content: '›';
		position: absolute;
		right: 0;
		top: 50%;
		transform: translateY(-50%);
		color: rgba(102, 102, 102, 0.3);
		font-size: 1.5em;
		pointer-events: none;
		background: linear-gradient(to right, transparent, #f8f9fb 30%);
		padding-left: 20px;
		padding-right: 5px;
		opacity: 1;
		transition: opacity 0.3s ease;
		z-index: 1;
	}

	.nav-menu-wrapper.hide-right-arrow::after {
		opacity: 0;
	}

	.nav-menu {
		overflow-x: auto;
		overflow-y: hidden;
		gap: 10px;
		padding: 5px 0;
		/* 스크롤바 숨기기 */
		scrollbar-width: none;
		-ms-overflow-style: none;
	}

	.nav-menu::-webkit-scrollbar {
		display: none;
	}

	.nav-menu li {
		flex-shrink: 0;
	}

	.hero-content h1 {
		font-size: 1.8em;
	}

	.content-article h1 {
		font-size: 1.8em;
	}

	.content-body h2 {
		font-size: 1.4em;
		margin-top: 40px;
	}

	.content-body h3 {
		font-size: 1.2em;
		margin-top: 30px;
	}

	.feature-grid {
		grid-template-columns: 1fr;
	}
}