@charset "utf-8";

/* ========================================
   청호 홈페이지 스타일
   ======================================== */

/* === Reset & Base === */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: 'Pretendard', 'Noto Sans KR', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    color: #333;
    line-height: 1.6;
    overflow-x: hidden;
    background: #fff;
}

a {
    text-decoration: none;
    color: inherit;
    transition: color 0.3s;
}

ul, li {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
    vertical-align: middle;
}

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

/* === 헤더 === */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    transition: background-color 0.3s, box-shadow 0.3s;
    background: transparent;
}

.site-header.scrolled {
    background: rgba(0, 0, 0, 0.9);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.site-header.header-light {
    background: #fff;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
}

/* 로고 상태별 스왑 (light: 어두운/투명 배경 / dark: 흰 배경) */
.site-header .logo-light { display: inline-block; }
.site-header .logo-dark  { display: none; }
.site-header.header-light .logo-light { display: none; }
.site-header.header-light .logo-dark  { display: inline-block; }

.site-header.header-light .gnb-list > .gnb-item > a {
    color: #333;
}

.site-header.header-light .gnb-list > .gnb-item > a:hover,
.site-header.header-light .gnb-list > .gnb-item.active > a {
    color: #0066cc;
}

.header-inner {
    max-width: 1520px;
    margin: 0 auto;
    padding: 0 40px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    height: 80px;
}

.logo {
    flex: 0 0 auto;
}

.logo a {
    display: inline-block;
}

.logo-img {
    height: 28px;
    width: auto;
}

.gnb {
    flex: 1 1 auto;
    display: flex;
    justify-content: center;
}

/* 언어 전환 토글 */
.lang-toggle {
    display: flex;
    align-items: center;
    gap: 8px;
}

.lang-toggle a {
    font-size: 13px;
    font-weight: 600;
    color: rgba(255, 255, 255, 0.5);
    letter-spacing: 0.02em;
    transition: color 0.3s;
}

.lang-toggle a.active {
    color: #fff;
}

.lang-toggle a:hover {
    color: #fff;
}

.lang-toggle span {
    font-size: 12px;
    color: rgba(255, 255, 255, 0.3);
}

.site-header.header-light .lang-toggle a {
    color: rgba(0, 0, 0, 0.35);
}

.site-header.header-light .lang-toggle a.active {
    color: #333;
}

.site-header.header-light .lang-toggle a:hover {
    color: #333;
}

.site-header.header-light .lang-toggle span {
    color: rgba(0, 0, 0, 0.2);
}

/* PC용 언어 토글 */
.pc-lang {
    display: flex;
}

/* 모바일용 언어 토글 (기본 숨김) */
.mobile-lang {
    display: none;
}

/* GNB 네비게이션 */
.gnb-list {
    display: flex;
    gap: 0;
}

.gnb-item {
    position: relative;
}

.gnb-item > a {
    display: block;
    padding: 28px 18px;
    font-size: 15px;
    font-weight: 500;
    color: #fff;
    letter-spacing: -0.02em;
    white-space: nowrap;
    transition: color 0.3s;
}

.gnb-item > a:hover,
.gnb-item.active > a {
    color: #4db8ff;
}

/* 서브 메뉴 */
.sub-menu {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    min-width: 200px;
    background: rgba(0, 0, 0, 0.9);
    border-radius: 0 0 8px 8px;
    padding: 8px 0;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s, visibility 0.3s;
}

.site-header.header-light .sub-menu {
    background: #fff;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.gnb-item:hover .sub-menu {
    opacity: 1;
    visibility: visible;
}

.sub-menu li a {
    display: block;
    padding: 10px 24px;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.8);
    white-space: nowrap;
    transition: color 0.2s, background-color 0.2s;
}

.site-header.header-light .sub-menu li a {
    color: #666;
}

.sub-menu li a:hover {
    color: #4db8ff;
    background: rgba(255, 255, 255, 0.05);
}

.site-header.header-light .sub-menu li a:hover {
    color: #0066cc;
    background: #f5f8ff;
}

/* 모바일 메뉴 버튼 */
.mobile-menu-btn {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 6px;
    width: 30px;
    height: 30px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
}

.mobile-menu-btn span {
    display: block;
    width: 100%;
    height: 2px;
    background: #fff;
    transition: transform 0.3s, opacity 0.3s;
}

.site-header.header-light .mobile-menu-btn span {
    background: #333;
}

.mobile-menu-btn.active span:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
}

.mobile-menu-btn.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-btn.active span:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
}

/* === 히어로 배너 === */
.hero-banner {
    position: relative;
    width: 100%;
    height: 100vh;
    min-height: 600px;
    overflow: hidden;
}

.banner-slider {
    position: relative;
    width: 100%;
    height: 100%;
}

.banner-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 1s ease-in-out;
}

.banner-slide.active {
    opacity: 1;
    z-index: 1;
}

.banner-slide .banner-bg {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.banner-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        to bottom,
        rgba(0, 0, 0, 0.3) 0%,
        rgba(0, 0, 0, 0.1) 40%,
        rgba(0, 0, 0, 0.4) 100%
    );
    z-index: 2;
}

.banner-content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    z-index: 3;
    width: 90%;
    max-width: 900px;
}

.banner-content h2 {
    font-size: 60px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 20px;
    letter-spacing: -0.02em;
    line-height: 1.2;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 1s ease-out, transform 1s ease-out;
}

.banner-content p {
    font-size: 22px;
    color: rgba(255, 255, 255, 0.9);
    line-height: 1.6;
    text-shadow: 0 1px 5px rgba(0, 0, 0, 0.3);
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 1s ease-out, transform 1s ease-out;
}

.banner-slide.active .banner-content h2 {
    opacity: 1;
    transform: translateY(0);
    transition-delay: 0.3s;
}

.banner-slide.active .banner-content p {
    opacity: 1;
    transform: translateY(0);
    transition-delay: 0.6s;
}

/* 배너 인디케이터 */
.banner-indicators {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 12px;
    z-index: 5;
}

.banner-indicator {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.4);
    border: none;
    cursor: pointer;
    transition: background 0.3s, transform 0.3s;
}

.banner-indicator.active {
    background: #fff;
    transform: scale(1.2);
}

/* 배너 카테고리 바 */
.banner-categories {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    z-index: 5;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(10px);
}

.banner-categories ul {
    display: flex;
    max-width: 1400px;
    margin: 0 auto;
}

.banner-categories li {
    flex: 1;
    text-align: center;
}

.banner-categories li:nth-child(4) {
    flex: 1.8;
}

.banner-categories li a {
    display: block;
    padding: 18px 10px;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.7);
    border-right: 1px solid rgba(255, 255, 255, 0.1);
    transition: color 0.3s, background 0.3s;
}

.banner-categories li:last-child a {
    border-right: none;
}

.banner-categories li a:hover,
.banner-categories li a.active {
    color: #fff;
    background: rgba(0, 102, 204, 0.4);
}

.banner-categories li a .cat-num {
    display: block;
    font-size: 12px;
    color: rgba(255, 255, 255, 0.4);
    margin-bottom: 4px;
}

/* === 섹션 공통 === */
.section {
    padding: 100px 0;
}

.section-title {
    text-align: center;
    margin-bottom: 20px;
}

.section-title h2 {
    font-size: 36px;
    font-weight: 700;
    color: #1a1a1a;
    letter-spacing: -0.02em;
}

.section-title p {
    font-size: 16px;
    color: #888;
    margin-top: 4px;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.section-desc {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 60px;
    font-size: 16px;
    color: #666;
    line-height: 1.8;
}

/* === 경영이념 섹션 === */
.philosophy-section {
    background: #fff;
}

.philosophy-section .section-title h2 {
    font-size: 36px;
}

.philosophy-quote {
    text-align: center;
    margin-bottom: 40px;
}

.philosophy-quote blockquote {
    font-size: 48px;
    font-weight: 700;
    color: #1a1a1a;
    line-height: 1.5;
    text-align: center;
}

.philosophy-desc {
    margin-bottom: 60px;
    border-top: 1px solid #e0e0e0;
    padding-top: 30px;
}

.philosophy-desc p {
    font-size: 18px;
    color: #555;
    line-height: 1.9;
    margin-bottom: 16px;
}

.philosophy-desc p:last-child {
    margin-bottom: 0;
}

.philosophy-content {
    display: flex;
    gap: 40px;
    align-items: stretch;
}

.philosophy-image {
    flex: 1;
    border-radius: 12px;
    overflow: hidden;
    min-height: 400px;
}

.philosophy-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.philosophy-values {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 0;
}

.value-item {
    padding: 20px 24px;
    border-bottom: 1px solid #eee;
}

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

.value-item h3 {
    font-size: 24px;
    font-weight: 700;
    color: #1a1a1a;
    margin-bottom: 6px;
}

.value-item p {
    font-size: 14px;
    color: #777;
    line-height: 1.6;
}

/* === 경영이념 하단 배너 === */
.philosophy-banner {
    position: relative;
    width: 100%;
    padding: 80px 20px;
    background: url('/common/img/main/philosophy_banner_bg.png') center center / cover no-repeat;
    background-color: #1a1a2e;
    text-align: center;
}

.philosophy-banner-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
}

.philosophy-banner-content {
    position: relative;
    z-index: 2;
}

.philosophy-banner-content p {
    font-size: 40px;
    font-weight: 400;
    color: #fff;
    line-height: 1.5;
    margin-bottom: 30px;
    width: 100%;
}

.philosophy-banner-btns {
    display: flex;
    gap: 16px;
    justify-content: center;
}

.philosophy-banner-btns a {
    display: inline-block;
    padding: 14px 40px;
    border: 2px solid #fff;
    color: #fff;
    font-size: 15px;
    font-weight: 600;
    border-radius: 6px;
    transition: background 0.3s, color 0.3s;
}

.philosophy-banner-btns a:hover {
    background: #fff;
    color: #1a1a2e;
}

/* === 주요사업분야 타이틀 (하얀 배경) === */
.business-title-section {
    background: #fff;
    padding: 80px 0 40px;
}

.business-title-section .section-title h2 {
    color: #1a1a1a;
}

.business-section .section-desc {
    font-size: 20px;
}

.business-section .section-desc strong {
    color: rgba(255,255,255,0.95);
    font-size: 22px;
}

/* === 주요사업분야 섹션 === */
.business-section {
    background: url('/common/img/main/business_bg.png') center center / cover no-repeat;
    background-color: #0d1b2a;
    color: #fff;
    position: relative;
    padding-top: 60px;
}

.business-image-wrap {
    position: relative;
    max-width: 850px;
    margin: 0 auto;
    padding: 40px 20px 40px;
    min-height: 550px;
}

.business-main-img {
    width: 400px;
    height: auto;
    display: block;
    position: absolute;
    top: calc(50% + 20px);
    left: 50%;
    transform: translate(-50%, -50%);
}

/* 주요사업분야 텍스트 라벨 */
.biz-label {
    position: absolute;
    color: #fff;
    line-height: 1.5;
    white-space: normal;
    max-width: 260px;
}

.biz-label strong {
    display: block;
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 8px;
}

.biz-label p {
    font-size: 11px;
    font-weight: 400;
    color: rgba(255,255,255,0.65);
    line-height: 1.7;
    margin: 0;
}

.biz-label-top {
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    text-align: center;
    max-width: 600px;
}

.biz-label-left {
    top: calc(20% + 30px);
    left: -20px;
    text-align: right;
}

.biz-label-right {
    top: calc(14% + 40px);
    right: -20px;
    text-align: left;
}

.biz-label-bottom-left {
    bottom: 120px;
    left: -70px;
    text-align: right;
}

.biz-label-bottom-right {
    bottom: 122px;
    right: -70px;
    text-align: left;
}

/* === 솔루션프로젝트 섹션 === */
.solution-section {
    background: #f0f4f8;
}

.solution-content {
    display: flex;
    align-items: center;
    gap: 60px;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.solution-image {
    flex: 1;
    border-radius: 16px;
    overflow: hidden;
}

.solution-image img {
    width: 100%;
    height: auto;
    display: block;
}

.solution-info {
    flex: 1;
}

.solution-info .solution-tag {
    display: inline-block;
    padding: 6px 16px;
    background: #0066cc;
    color: #fff;
    font-size: 13px;
    font-weight: 600;
    border-radius: 20px;
    margin-bottom: 20px;
}

.solution-info h3 {
    font-size: 28px;
    font-weight: 700;
    color: #1a1a1a;
    margin-bottom: 16px;
    line-height: 1.4;
}

.solution-info p {
    font-size: 15px;
    color: #666;
    line-height: 1.8;
    margin-bottom: 24px;
}

.solution-info .btn-more {
    display: inline-block;
    padding: 12px 30px;
    background: #0066cc;
    color: #fff;
    font-size: 14px;
    font-weight: 600;
    border-radius: 8px;
    transition: background 0.3s;
}

.solution-info .btn-more:hover {
    background: #0052a3;
}

.solution-link-desc {
    display: block;
    margin-top: 8px;
    font-size: 13px;
    color: #999;
}

/* 솔루션 슬라이더 */
.solution-slider-wrap {
    position: relative;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    overflow: hidden;
}

.solution-slider {
    display: flex;
    transition: transform 0.5s ease;
}

.solution-slide {
    min-width: 100%;
    display: flex;
    align-items: center;
    gap: 60px;
}

.solution-nav {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-top: 40px;
}

.solution-nav button {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    border: none;
    background: #ccc;
    cursor: pointer;
    transition: background 0.3s;
}

.solution-nav button.active {
    background: #0066cc;
}

/* === NOTICE 섹션 === */
.notice-section {
    background: url('/docs/images/notice_bg.png') center center / cover no-repeat;
    background-color: #2c2c3a;
    padding: 80px 0;
}

.notice-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* NOTICE 타이틀 */
.notice-title-area {
    text-align: center;
    margin-bottom: 40px;
}

.notice-title-area h2 {
    font-size: 32px;
    font-weight: 700;
    color: #fff;
    letter-spacing: 0.05em;
}

/* 공지사항 카드 */
.notice-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-bottom: 40px;
}

.notice-card {
    display: flex;
    flex-direction: column;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 12px;
    padding: 30px 28px;
    transition: background 0.3s, transform 0.3s;
}

.notice-card:hover {
    background: rgba(255, 255, 255, 0.14);
    transform: translateY(-4px);
}

.notice-card-title {
    font-size: 17px;
    font-weight: 700;
    color: #fff;
    line-height: 1.5;
    margin-bottom: 14px;
}

.notice-card-desc {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.55);
    line-height: 1.7;
    flex: 1;
    margin-bottom: 20px;
}

.notice-card-date {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.35);
}

/* 더보기 버튼 */
.notice-more-wrap {
    text-align: center;
    margin-bottom: 60px;
}

a.btn-notice-more,
a.btn-notice-more:link,
a.btn-notice-more:visited {
    display: inline-block;
    padding: 12px 48px;
    border: 2px solid #fff;
    border-radius: 30px;
    font-size: 15px;
    font-weight: 600;
    color: #fff;
    transition: border-color 0.3s, color 0.3s, background 0.3s;
}

a.btn-notice-more:hover,
a.btn-notice-more:active {
    border-color: #fff;
    color: #fff;
    background: rgba(255, 255, 255, 0.08);
}

/* 하단 썸네일 콘텐츠 카드 */
.notice-thumb-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.thumb-card {
    display: block;
    border-radius: 12px;
    overflow: hidden;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: transform 0.3s, background 0.3s;
}

.thumb-card:hover {
    transform: translateY(-4px);
    background: rgba(255, 255, 255, 0.1);
}

.thumb-card-img {
    width: 100%;
    overflow: hidden;
}

.thumb-card-img img {
    width: 100%;
    height: auto;
    display: block;
    aspect-ratio: 16 / 10;
    object-fit: cover;
    transition: transform 0.3s;
}

.thumb-card:hover .thumb-card-img img {
    transform: scale(1.05);
}

.thumb-card-info {
    padding: 20px 24px 24px;
}

.thumb-card-info h3 {
    font-size: 18px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 8px;
}

.thumb-card-info p {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.5);
    line-height: 1.6;
    margin-bottom: 16px;
}

.thumb-more {
    font-size: 13px;
    font-weight: 600;
    color: rgba(255, 255, 255, 0.6);
    transition: color 0.3s;
}

.thumb-card:hover .thumb-more {
    color: #4db8ff;
}

/* === 푸터 === */
.site-footer {
    background: #111;
    color: rgba(255, 255, 255, 0.6);
    padding: 50px 0 30px;
}

.footer-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.footer-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-bottom: 30px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    margin-bottom: 30px;
}

.footer-logo img {
    height: 20px;
    width: auto;
    opacity: 0.7;
}

.footer-links {
    display: flex;
    gap: 30px;
}

.footer-links a {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.6);
    transition: color 0.3s;
}

.footer-links a:hover {
    color: #fff;
}

.footer-bottom {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
}

.footer-info p {
    font-size: 13px;
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.4);
}

.footer-info .company-name {
    font-size: 15px;
    font-weight: 600;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 8px;
}

.footer-copyright p {
    font-size: 12px;
    color: rgba(255, 255, 255, 0.3);
}

/* ========================================
   서브페이지 공통
   ======================================== */

/* === 서브 배너 === */
.sub-banner {
    position: relative;
    width: 100%;
    height: 300px;
    padding-top: 80px;
    background-size: cover;
    background-position: center;
    background-color: #0d1b2a;
    display: flex;
    align-items: center;
    justify-content: center;
}

.sub-banner-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.45);
}

.sub-banner-content {
    position: relative;
    z-index: 2;
    text-align: center;
}

.sub-banner-content h2 {
    font-size: 36px;
    font-weight: 700;
    color: #fff;
    letter-spacing: -0.02em;
}

/* === 서브 네비게이션 === */
.sub-nav {
    background: #fff;
    border-bottom: 1px solid #e5e5e5;
}

.sub-nav-inner {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    justify-content: center;
    flex-wrap: nowrap;
    padding: 0 20px;
}

a.sub-nav-item,
a.sub-nav-item:link,
a.sub-nav-item:visited {
    flex: 1 1 0;
    min-width: 0;
    text-align: center;
    padding: 16px 18px;
    font-size: 15px;
    font-weight: 500;
    color: #888;
    white-space: nowrap;
    border-bottom: 3px solid transparent;
    transition: color 0.3s, border-color 0.3s;
}

a.sub-nav-item:hover {
    color: #333;
}

a.sub-nav-item.active,
a.sub-nav-item.active:link,
a.sub-nav-item.active:visited {
    color: #0d1b2a;
    font-weight: 700;
    border-bottom-color: #0d1b2a;
}

/* === 서브 콘텐츠 영역 === */
.sub-content {
    background: #fff;
    padding: 80px 0;
}

.sub-content-inner {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 페이지 타이틀 영역 */
.page-title-area {
    text-align: center;
    margin-bottom: 70px;
}

.page-subtitle {
    font-size: 14px;
    color: #999;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    margin-bottom: 8px;
}

.page-title {
    font-size: 36px;
    font-weight: 700;
    color: #1a1a1a;
    margin-bottom: 16px;
}

.page-tagline {
    font-size: 16px;
    color: #666;
}

/* === 연혁 타임라인 === */
.history-timeline {
    position: relative;
}

.history-phase {
    margin-bottom: 80px;
}

.history-phase:last-child {
    margin-bottom: 0;
}

/* 배경 구분 */
.phase-growth {
    background: #f8f9fa;
    margin-left: -20px;
    margin-right: -20px;
    padding: 80px 20px;
}

.phase-row {
    display: flex;
    gap: 60px;
    align-items: flex-start;
}

.phase-row.reverse {
    flex-direction: row-reverse;
}

/* 이미지 + 라벨 컬럼 */
.phase-image-col {
    flex: 0 0 340px;
    position: sticky;
    top: 120px;
}

.phase-image {
    border-radius: 12px;
    overflow: hidden;
    margin-bottom: 20px;
}

.phase-image img {
    width: 100%;
    height: auto;
    display: block;
}

.phase-label {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.phase-en {
    font-size: 28px;
    font-weight: 800;
    color: #1a1a1a;
    line-height: 1.2;
    font-style: italic;
}

.phase-ko {
    font-size: 18px;
    font-weight: 700;
    color: #333;
}

/* 타임라인 컬럼 */
.phase-timeline-col {
    flex: 1;
    min-width: 0;
}

.timeline-group {
    margin-bottom: 36px;
}

.timeline-group:last-child {
    margin-bottom: 0;
}

.timeline-year {
    font-size: 26px;
    font-weight: 800;
    color: #1a1a1a;
    margin-bottom: 16px;
    padding-bottom: 10px;
    border-bottom: 2px solid #1a1a1a;
}

.timeline-items {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.timeline-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    font-size: 14px;
    line-height: 1.7;
}

.timeline-date {
    flex: 0 0 75px;
    color: #999;
    font-weight: 500;
    white-space: nowrap;
}

.timeline-text {
    color: #444;
    flex: 1;
}

/* === 하단 CTA 배너 === */
.sub-cta-banner {
    position: relative;
    width: 100%;
    padding: 80px 20px;
    background-size: cover;
    background-position: center;
    background-color: #0d1b2a;
    text-align: center;
}

.sub-cta-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
}

.sub-cta-content {
    position: relative;
    z-index: 2;
}

.sub-cta-content p {
    font-size: 40px;
    font-weight: 400;
    color: #fff;
    line-height: 1.5;
    margin-bottom: 30px;
    width: 100%;
}

a.sub-cta-btn,
a.sub-cta-btn:link,
a.sub-cta-btn:visited {
    display: inline-block;
    padding: 14px 40px;
    background: #fff;
    color: #0d1b2a;
    font-size: 15px;
    font-weight: 700;
    border-radius: 6px;
    transition: background 0.3s, transform 0.3s;
}

a.sub-cta-btn:hover {
    background: #e8ecf0;
    transform: translateY(-2px);
}

/* === 경영이념 서브페이지 === */
.vision-quote {
    text-align: center;
    margin-bottom: 40px;
}

.vision-quote blockquote {
    font-size: 32px;
    font-weight: 700;
    color: #1a1a1a;
    line-height: 1.5;
    width: 740px;
    max-width: 100%;
    margin: 0 auto;
}

.vision-desc {
    margin-bottom: 60px;
    border-top: 1px solid #e0e0e0;
    padding-top: 30px;
}

.vision-desc p {
    font-size: 15px;
    color: #555;
    line-height: 1.9;
    margin-bottom: 16px;
}

.vision-desc p:last-child {
    margin-bottom: 0;
}

.vision-content {
    display: flex;
    gap: 40px;
    align-items: stretch;
}

.vision-image {
    flex: 1;
    border-radius: 12px;
    overflow: hidden;
    min-height: 400px;
}

.vision-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.vision-values {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 0;
}

.vision-value-item {
    padding: 20px 24px;
    border-bottom: 1px solid #eee;
}

.vision-value-item:last-child {
    border-bottom: none;
}

.vision-value-item h3 {
    font-size: 18px;
    font-weight: 700;
    color: #1a1a1a;
    margin-bottom: 6px;
}

.vision-value-item p {
    font-size: 14px;
    color: #777;
    line-height: 1.6;
}

/* === 연구실적 서브페이지 === */
.research-tabs {
    display: flex;
    justify-content: center;
    gap: 0;
    margin-bottom: 50px;
    border-bottom: 2px solid #e5e5e5;
}

.research-tab {
    padding: 12px 28px;
    font-size: 15px;
    font-weight: 500;
    color: #888;
    background: none;
    border: none;
    border-bottom: 2px solid transparent;
    margin-bottom: -2px;
    cursor: pointer;
    transition: color 0.3s, border-color 0.3s;
}

.research-tab:hover {
    color: #333;
}

.research-tab.active {
    color: #0d1b2a;
    font-weight: 700;
    border-bottom-color: #0d1b2a;
}

.research-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.research-card {
    background: #f8f9fa;
    border-radius: 10px;
    overflow: hidden;
    border: 1px solid #eee;
    transition: transform 0.3s, box-shadow 0.3s, opacity 0.3s;
}

.research-card.hidden {
    display: none;
}

.research-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
}

.research-card-img {
    padding: 20px;
    background: #fff;
    text-align: center;
}

.research-card-img img {
    width: 100%;
    max-width: 200px;
    height: auto;
    display: inline-block;
}

.research-card-info {
    padding: 16px 20px 20px;
}

.research-card-category {
    display: inline-block;
    padding: 3px 10px;
    font-size: 12px;
    font-weight: 600;
    border-radius: 4px;
    margin-bottom: 8px;
}

.research-card-category.patent {
    background: #e8f0fe;
    color: #1a56db;
}

.research-card-category.rnd {
    background: #fef3c7;
    color: #b45309;
}

.research-card-category.corp {
    background: #d1fae5;
    color: #065f46;
}

.research-card-category.product {
    background: #fce7f3;
    color: #9d174d;
}

.research-card-title {
    font-size: 14px;
    font-weight: 500;
    color: #333;
    line-height: 1.5;
}

/* === 찾아오시는길 서브페이지 === */
.location-map-wrap {
    margin-bottom: 40px;
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid #e5e5e5;
}

.location-map {
    width: 100%;
    height: 450px;
}

.location-info {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    padding: 30px 0;
}

.location-icon {
    flex-shrink: 0;
    margin-top: 2px;
}

.location-details p {
    font-size: 15px;
    color: #555;
    line-height: 1.8;
}

.location-details strong {
    color: #333;
    font-weight: 600;
}

/* === 주요사업분야 서브페이지 === */
/* === 서브페이지 주요사업분야 타이틀 (하얀 배경) === */
.biz-title-section {
    background: #fff;
    padding: 80px 0 40px;
}

.biz-content-section {
    background-size: cover;
    background-position: center;
    background-color: #0d1b2a;
    padding: 60px 0 80px;
}

.biz-content-inner {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 20px;
}

.biz-desc {
    text-align: center;
    max-width: 750px;
    margin: 0 auto 60px;
}

.biz-desc p {
    font-size: 20px;
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.8;
}

.biz-desc p strong {
    color: rgba(255,255,255,0.95);
    font-size: 22px;
}

.biz-diagram {
    text-align: center;
    margin-bottom: 60px;
}

.biz-diagram img {
    max-width: 800px;
    width: 100%;
    height: auto;
}

/* 서브페이지 business-image-wrap 보정 */
.biz-content-section .business-image-wrap {
    max-width: 850px;
    min-height: 580px;
    padding: 40px 20px 40px;
}

.biz-content-section .business-main-img {
    width: 350px;
    top: calc(50% - 40px);
}

.biz-content-section .biz-label-top {
    max-width: 600px;
}

.biz-content-section .biz-label-left {
    left: -10px;
    top: calc(20% - 10px);
}

.biz-content-section .biz-label-right {
    right: -20px;
    top: calc(14% + 20px);
}

.biz-content-section .biz-label-bottom-left {
    left: -50px;
    bottom: 200px;
}

.biz-content-section .biz-label-bottom-right {
    right: -50px;
    bottom: 202px;
}

.biz-detail-box {
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    padding: 40px;
    text-align: center;
}

.biz-detail-title {
    font-size: 24px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 16px;
}

.biz-detail-desc {
    font-size: 15px;
    color: rgba(255, 255, 255, 0.65);
    line-height: 1.8;
    max-width: 700px;
    margin: 0 auto;
}

/* ========================================
   솔루션프로젝트 서브페이지
   ======================================== */
.solution-showcase {
    padding: 0 0 80px;
    background: #fff;
}

.solution-showcase-inner {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 30px;
    position: relative;
}

.solution-showcase-slider {
    position: relative;
    overflow: hidden;
}

.solution-showcase-slide {
    display: none;
    animation: solutionFadeIn 0.5s ease;
}

.solution-showcase-slide.active {
    display: block;
}

@keyframes solutionFadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.solution-showcase-catch {
    font-size: 28px;
    font-weight: 700;
    color: #1a1a2e;
    text-align: center;
    line-height: 1.5;
    margin-bottom: 50px;
}

.solution-showcase-card {
    display: flex;
    align-items: stretch;
    background: #f8f9fa;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.solution-showcase-img {
    flex: 1;
    min-height: 360px;
    overflow: hidden;
}

.solution-showcase-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.solution-showcase-info {
    flex: 0 0 380px;
    padding: 50px 40px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.solution-showcase-tag {
    display: inline-block;
    background: rgba(0, 186, 136, 0.1);
    color: #00ba88;
    font-size: 13px;
    font-weight: 600;
    padding: 6px 14px;
    border-radius: 20px;
    margin-bottom: 20px;
    width: fit-content;
}

.solution-showcase-product {
    font-size: 22px;
    font-weight: 700;
    color: #1a1a2e;
    margin-bottom: 14px;
    line-height: 1.4;
}

.solution-showcase-desc {
    font-size: 15px;
    color: #666;
    line-height: 1.7;
    margin-bottom: 30px;
}

a.btn-solution-go,
a.btn-solution-go:link,
a.btn-solution-go:visited {
    display: inline-block;
    background: #00ba88;
    color: #fff;
    padding: 14px 36px;
    border-radius: 8px;
    font-size: 15px;
    font-weight: 600;
    text-decoration: none;
    text-align: center;
    transition: background 0.3s;
    width: fit-content;
}

a.btn-solution-go:hover {
    background: #00a078;
}

/* 슬라이더 화살표 */
.solution-showcase-prev,
.solution-showcase-next {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 50px;
    height: 50px;
    background: #fff;
    border: 1px solid #e0e0e0;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #333;
    transition: all 0.3s;
    z-index: 10;
}

.solution-showcase-prev:hover,
.solution-showcase-next:hover {
    background: #1a1a2e;
    border-color: #1a1a2e;
    color: #fff;
}

.solution-showcase-prev {
    left: -25px;
}

.solution-showcase-next {
    right: -25px;
}

/* ========================================
   지속가능경영 서브페이지
   ======================================== */
.sustain-section {
    margin-bottom: 60px;
}

.sustain-section:last-child {
    margin-bottom: 0;
}

.sustain-heading {
    font-size: 24px;
    font-weight: 700;
    color: #1a1a2e;
    margin-bottom: 20px;
    line-height: 1.4;
}

.sustain-desc {
    font-size: 15px;
    color: #555;
    line-height: 1.9;
    margin-bottom: 24px;
}

.sustain-list {
    list-style: none;
    padding: 0;
    margin: 0 0 30px 0;
    background: #f8f9fa;
    border-radius: 12px;
    padding: 24px 30px;
}

.sustain-list li {
    position: relative;
    padding-left: 20px;
    margin-bottom: 12px;
    font-size: 15px;
    color: #444;
    line-height: 1.7;
}

.sustain-list li:last-child {
    margin-bottom: 0;
}

.sustain-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 10px;
    width: 8px;
    height: 8px;
    background: #00ba88;
    border-radius: 50%;
}

.sustain-images {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-top: 30px;
}

.sustain-img {
    border-radius: 12px;
    overflow: hidden;
    aspect-ratio: 16 / 10;
}

.sustain-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* ========================================
   미디어센터 - 게시판 테이블
   ======================================== */
.board-table-wrap {
    width: 100%;
    overflow-x: auto;
}

.board-table {
    width: 100%;
    border-collapse: collapse;
    border-top: 2px solid #1a1a2e;
}

.board-table thead th {
    padding: 14px 16px;
    font-size: 14px;
    font-weight: 600;
    color: #1a1a2e;
    border-bottom: 1px solid #ddd;
    text-align: center;
    background: #fafafa;
}

.board-table tbody td {
    padding: 14px 16px;
    font-size: 14px;
    color: #555;
    border-bottom: 1px solid #eee;
    text-align: center;
}

.board-table .col-no {
    width: 70px;
}

.board-table .col-title {
    text-align: left;
}

.board-table .col-title a,
.board-table .col-title a:link,
.board-table .col-title a:visited {
    color: #333;
    text-decoration: none;
}

.board-table .col-title a:hover {
    color: #00ba88;
}

.board-table .col-date {
    width: 120px;
    color: #999;
}

.board-table .col-views {
    width: 80px;
    color: #999;
}

.board-table .col-download {
    width: 100px;
}

a.btn-download,
a.btn-download:link,
a.btn-download:visited {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 6px 14px;
    border: 1px solid #ddd;
    border-radius: 6px;
    font-size: 13px;
    color: #555;
    text-decoration: none;
    transition: all 0.3s;
}

a.btn-download:hover {
    border-color: #00ba88;
    color: #00ba88;
}

/* 페이지네이션 */
.board-pagination {
    display: flex;
    justify-content: center;
    gap: 6px;
    margin-top: 40px;
}

a.page-link,
a.page-link:link,
a.page-link:visited {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border: 1px solid #ddd;
    border-radius: 8px;
    font-size: 14px;
    color: #666;
    text-decoration: none;
    transition: all 0.3s;
}

a.page-link:hover {
    border-color: #1a1a2e;
    color: #1a1a2e;
}

a.page-link.active,
a.page-link.active:link,
a.page-link.active:visited {
    background: #1a1a2e;
    border-color: #1a1a2e;
    color: #fff;
}

/* ========================================
   미디어센터 - 영상콘텐츠
   ======================================== */
.video-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.video-card {
    border-radius: 12px;
    overflow: hidden;
    background: #fff;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
    transition: transform 0.3s, box-shadow 0.3s;
    cursor: pointer;
}

.video-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
}

.video-thumb {
    position: relative;
    aspect-ratio: 16 / 9;
    overflow: hidden;
}

.video-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s;
}

.video-card:hover .video-thumb img {
    transform: scale(1.05);
}

.video-play-btn {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    opacity: 0.8;
    transition: opacity 0.3s;
}

.video-card:hover .video-play-btn {
    opacity: 1;
}

.video-info {
    padding: 16px 20px;
}

.video-info h4 {
    font-size: 15px;
    font-weight: 600;
    color: #1a1a2e;
    margin-bottom: 8px;
    line-height: 1.4;
}

.video-date {
    font-size: 13px;
    color: #999;
}

/* ========================================
   미디어센터 - Contact Us 폼
   ======================================== */
.contact-desc {
    font-size: 15px;
    color: #666;
    line-height: 1.8;
    margin-top: 16px;
}

.contact-form {
    max-width: 800px;
    margin: 0 auto;
}

.form-row {
    display: flex;
    gap: 20px;
    margin-bottom: 0;
}

.form-row .form-group {
    flex: 1;
}

.form-group {
    margin-bottom: 20px;
}

.form-group.full {
    width: 100%;
}

.form-group label {
    display: block;
    font-size: 14px;
    font-weight: 600;
    color: #333;
    margin-bottom: 8px;
}

.form-group label .required {
    color: #e74c3c;
}

.form-group input[type="text"],
.form-group input[type="email"],
.form-group input[type="tel"],
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid #ddd;
    border-radius: 8px;
    font-size: 14px;
    color: #333;
    background: #fff;
    transition: border-color 0.3s;
    font-family: 'Pretendard', sans-serif;
    box-sizing: border-box;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #00ba88;
}

.form-group textarea {
    resize: vertical;
    min-height: 140px;
}

.form-agree {
    margin: 24px 0;
}

.form-agree label {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: #555;
    cursor: pointer;
}

.form-agree input[type="checkbox"] {
    width: 18px;
    height: 18px;
    accent-color: #00ba88;
}

.form-submit {
    text-align: center;
    margin-top: 10px;
}

.btn-contact-submit {
    display: inline-block;
    padding: 16px 60px;
    background: #1a1a2e;
    color: #fff;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.3s;
    font-family: 'Pretendard', sans-serif;
}

.btn-contact-submit:hover {
    background: #00ba88;
}

/* ========================================
   반응형 스타일
   ======================================== */

/* === 스크롤 애니메이션 === */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* === 개인정보처리방침 === */
.privacy-content {
    max-width: 960px;
    margin: 0 auto 60px;
    padding: 0 8px;
    font-size: 14px;
    line-height: 1.8;
    color: #374151;
}
.privacy-intro {
    padding: 24px 28px;
    background: #f5f8ff;
    border-left: 3px solid #2563eb;
    border-radius: 6px;
    margin-bottom: 40px;
}
.privacy-content h4 {
    font-size: 17px;
    font-weight: 700;
    color: #1a2b4a;
    margin: 32px 0 12px;
    padding-bottom: 8px;
    border-bottom: 1px solid #e5e7eb;
}
.privacy-content p { margin: 0 0 12px; }
.privacy-content ul {
    padding-left: 20px;
    margin: 0 0 12px;
}
.privacy-content ul li {
    margin-bottom: 6px;
    list-style: disc;
}
.privacy-date {
    margin-top: 40px;
    padding-top: 20px;
    border-top: 1px solid #e5e7eb;
    text-align: right;
    color: #6b7280;
}
.footer-privacy-link {
    color: inherit;
    text-decoration: none;
}
.footer-privacy-link:hover { text-decoration: underline; }

/* === 지속가능경영 리뉴얼 v2 (시안 반영) === */

/* 탭 네비 */
.sustain-tabs {
    display: flex;
    justify-content: center;
    gap: 60px;
    padding: 8px 0 20px;
    border-bottom: 1px solid #e5e7eb;
    margin: 0 auto 48px;
    max-width: 960px;
    flex-wrap: wrap;
}
.sustain-tab {
    position: relative;
    padding: 10px 4px;
    font-size: 16px;
    font-weight: 500;
    color: #6b7280;
    text-decoration: none;
    transition: color 0.2s ease;
}
.sustain-tab:hover { color: #1a2b4a; }
.sustain-tab.active {
    color: #2563eb;
    font-weight: 700;
}
.sustain-tab.active::after {
    content: '';
    position: absolute;
    left: -8px; right: -8px; bottom: -21px;
    height: 2px;
    background: #2563eb;
}
@media (max-width: 700px) {
    .sustain-tabs { gap: 20px; }
    .sustain-tab { font-size: 14px; }
}

/* Hero 큰 제목 */
.sustain-hero-v2 {
    max-width: 960px;
    margin: 0 auto 28px;
    padding-bottom: 24px;
    border-bottom: 1px solid #e5e7eb;
}
.sustain-hero-v2 h2 {
    font-size: 28px;
    font-weight: 700;
    color: #1a2b4a;
    line-height: 1.5;
    margin: 0;
    letter-spacing: -0.01em;
}
@media (max-width: 700px) {
    .sustain-hero-v2 h2 { font-size: 22px; }
}

/* 리드 문단 */
.sustain-lead {
    max-width: 960px;
    margin: 0 auto 40px;
}
.sustain-lead-title {
    font-size: 16px;
    font-weight: 700;
    color: #1a2b4a;
    margin: 0 0 8px;
}
.sustain-lead-desc {
    font-size: 15px;
    line-height: 1.8;
    color: #4a5568;
    margin: 0;
}

/* 메인 이미지 */
.sustain-main-img {
    max-width: 960px;
    margin: 0 auto 56px;
    text-align: center;
}
.sustain-main-img img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
}

/* 하단 불릿 (social / mou) - 세로 나열 + 좌측 강조선 */
.sustain-bullets-v2 {
    max-width: 960px;
    margin: 0 auto 60px;
    display: flex;
    flex-direction: column;
    gap: 28px;
}
.sustain-bullet-v2 {
    padding: 4px 0;
}
.sustain-bullet-title {
    font-size: 16px;
    font-weight: 700;
    color: #1a2b4a;
    margin: 0 0 6px;
}
.sustain-bullet-desc {
    font-size: 14px;
    line-height: 1.7;
    color: #6b7280;
    margin: 0;
}

/* 하단 closing (youth) - 긴 설명 문단 */
.sustain-closing {
    max-width: 960px;
    margin: 0 auto 60px;
}
.sustain-closing p {
    font-size: 14px;
    line-height: 1.9;
    color: #6b7280;
    margin: 0 0 14px;
}
.sustain-closing p:last-child { margin-bottom: 0; }

/* === 인증/특허/수상실적 카드 그리드 === */
.cert-tabs {
    display: flex;
    justify-content: center;
    gap: 24px;
    padding: 12px 0 32px;
    border-bottom: 1px solid #e5e7eb;
    margin-bottom: 40px;
    flex-wrap: wrap;
}
.cert-tab {
    background: none;
    border: none;
    padding: 10px 4px;
    font-size: 16px;
    font-weight: 500;
    color: #6b7280;
    cursor: pointer;
    position: relative;
    transition: color 0.2s ease;
}
.cert-tab:hover { color: #1a2b4a; }
.cert-tab.active {
    color: #2563eb;
    font-weight: 700;
}
.cert-tab.active::after {
    content: '';
    position: absolute;
    left: 0; right: 0; bottom: -33px;
    height: 2px;
    background: #2563eb;
}
.cert-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    margin-bottom: 60px;
}
@media (max-width: 900px) {
    .cert-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 500px) {
    .cert-grid { grid-template-columns: 1fr; }
}
.cert-card {
    background: #fff;
    border: 1px solid #e5e7eb;
    border-radius: 10px;
    overflow: hidden;
    transition: box-shadow 0.2s ease, transform 0.2s ease;
}
.cert-card:hover {
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.08);
    transform: translateY(-4px);
}
.cert-card-img {
    width: 100%;
    aspect-ratio: 3 / 4;
    overflow: hidden;
    background: #f5f8ff;
}
.cert-card-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.cert-card-body {
    padding: 16px 18px 20px;
}
.cert-card-tag {
    display: inline-block;
    padding: 3px 10px;
    font-size: 12px;
    font-weight: 600;
    color: #2563eb;
    background: #dbeafe;
    border-radius: 4px;
    margin-bottom: 8px;
}
.cert-card-title {
    font-size: 14px;
    font-weight: 600;
    color: #1a2b4a;
    line-height: 1.4;
    margin: 0;
}

/* === AI LLM 챗봇 안내 페이지 === */
.chatbot-intro {
    max-width: 680px;
    margin: 40px auto 60px;
    padding: 60px 40px;
    background: #f5f8ff;
    border-radius: 16px;
    text-align: center;
}
.chatbot-intro h4 {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 16px;
    color: #1a2b4a;
}
.chatbot-intro p {
    font-size: 16px;
    line-height: 1.7;
    color: #4a5568;
    margin-bottom: 32px;
}
.chatbot-open-btn {
    display: inline-block;
    padding: 14px 36px;
    font-size: 16px;
    font-weight: 600;
    color: #fff;
    background: #2563eb;
    border: none;
    border-radius: 32px;
    cursor: pointer;
    transition: background 0.2s ease;
}
.chatbot-open-btn:hover {
    background: #1d4ed8;
}

/* === body 모바일 메뉴 오픈 시 스크롤 방지 === */
body.menu-open {
    overflow: hidden;
}

/* 태블릿 (1200px 이하) */
@media screen and (max-width: 1200px) {
    .header-inner {
        padding: 0 20px;
    }

    .gnb-item > a {
        padding: 28px 10px;
        font-size: 13px;
    }

    .logo-img {
        height: 24px;
    }

    .banner-categories li a {
        font-size: 12px;
        padding: 14px 8px;
    }

    /* 메인 페이지 주요사업분야 */
    .business-section .business-image-wrap {
        min-height: 620px;
    }

    .business-section .business-main-img {
        width: 350px;
    }

    .business-section .biz-label {
        max-width: 220px;
    }

    .business-section .biz-label strong {
        font-size: 16px;
    }

    .business-section .biz-label p {
        font-size: 10px;
    }
}

/* 태블릿 세로 (768px 이하) */
@media screen and (max-width: 768px) {
    /* 서브페이지 */
    .sub-banner {
        height: 220px;
    }

    .sub-banner-content h2 {
        font-size: 28px;
    }

    .sub-nav-inner {
        max-width: 100%;
        overflow-x: auto;
        flex-wrap: nowrap;
        -webkit-overflow-scrolling: touch;
    }

    a.sub-nav-item,
    a.sub-nav-item:link,
    a.sub-nav-item:visited {
        flex: 0 0 auto;
        padding: 14px 14px;
        font-size: 13px;
        white-space: nowrap;
    }

    .sub-content {
        padding: 50px 0;
    }

    .page-title-area {
        margin-bottom: 50px;
    }

    .page-title {
        font-size: 28px;
    }

    .phase-row,
    .phase-row.reverse {
        flex-direction: column;
        gap: 30px;
    }

    .phase-image-col {
        flex: none;
        width: 100%;
        position: static;
    }

    .phase-growth {
        padding: 50px 20px;
    }

    .phase-en {
        font-size: 22px;
    }

    .phase-ko {
        font-size: 16px;
    }

    .timeline-year {
        font-size: 22px;
    }

    .sub-cta-content p {
        font-size: 22px;
    }

    .vision-quote blockquote {
        font-size: 24px;
    }

    .vision-content {
        flex-direction: column;
    }

    .vision-image {
        min-height: 250px;
    }

    .research-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }

    .research-tab {
        padding: 10px 16px;
        font-size: 13px;
    }

    .location-map {
        height: 350px;
    }

    .location-info {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }

    .biz-content-section {
        padding: 50px 0;
    }

    .biz-content-section .business-image-wrap {
        min-height: 350px;
        padding: 20px 10px 20px;
        overflow: hidden;
    }

    .biz-content-section .business-main-img {
        width: 220px;
        top: calc(50% - 40px);
    }

    .biz-content-section .biz-label p {
        display: none;
    }

    .biz-content-section .biz-label {
        max-width: 140px;
    }

    .biz-content-section .biz-label strong {
        font-size: 12px;
        margin-bottom: 0;
    }

    .biz-content-section .biz-label-top {
        max-width: 300px;
    }

    .biz-content-section .biz-label-left {
        left: 75px;
        top: calc(20%);
    }

    .biz-content-section .biz-label-right {
        right: 5px;
        top: calc(14% + 10px);
    }

    .biz-content-section .biz-label-bottom-left {
        left: 25px;
        bottom: 180px;
    }

    .biz-content-section .biz-label-bottom-right {
        right: 45px;
        bottom: 182px;
    }

    .biz-detail-box {
        padding: 30px 24px;
    }

    .biz-detail-title {
        font-size: 20px;
    }

    /* 솔루션 쇼케이스 */
    .solution-showcase {
        padding: 0 0 60px;
    }

    .solution-showcase-catch {
        font-size: 22px;
        margin-bottom: 30px;
    }

    .solution-showcase-card {
        flex-direction: column;
    }

    .solution-showcase-img {
        min-height: 240px;
    }

    .solution-showcase-info {
        flex: none;
        padding: 30px;
    }

    .solution-showcase-prev {
        left: 10px;
    }

    .solution-showcase-next {
        right: 10px;
    }

    .solution-showcase-prev,
    .solution-showcase-next {
        width: 40px;
        height: 40px;
    }

    /* 지속가능경영 */
    .sustain-heading {
        font-size: 20px;
    }

    .sustain-images {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    /* 미디어센터 게시판 */
    .board-table .col-views {
        display: none;
    }

    .board-table thead th,
    .board-table tbody td {
        padding: 12px 10px;
        font-size: 13px;
    }

    .board-table .col-no {
        width: 40px;
    }

    /* 영상콘텐츠 */
    .video-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }

    /* Contact Us */
    .form-row {
        flex-direction: column;
        gap: 0;
    }

    .pc-lang {
        display: none;
    }

    .mobile-lang {
        display: flex;
        justify-content: center;
        padding: 20px 0;
        border-top: 1px solid rgba(255, 255, 255, 0.1);
        margin-top: 20px;
    }

    .mobile-menu-btn {
        display: flex;
    }

    .gnb {
        position: fixed;
        top: 80px;
        left: 0;
        width: 100%;
        height: calc(100vh - 80px);
        background: rgba(0, 0, 0, 0.95);
        transform: translateX(100%);
        transition: transform 0.3s;
        overflow-y: auto;
    }

    .gnb.active {
        transform: translateX(0);
    }

    .gnb-list {
        flex-direction: column;
        padding: 20px;
    }

    .gnb-item > a {
        padding: 16px 0;
        font-size: 18px;
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }

    .sub-menu {
        position: static;
        transform: none;
        opacity: 1;
        visibility: visible;
        background: transparent;
        padding: 0 0 10px 20px;
        display: none;
    }

    .gnb-item.sub-open .sub-menu {
        display: block;
    }

    .sub-menu li a {
        padding: 10px 0;
        font-size: 15px;
    }

    /* 배너 */
    .hero-banner {
        min-height: 500px;
    }

    .banner-content h2 {
        font-size: 36px;
    }

    .banner-content p {
        font-size: 18px;
    }

    .banner-categories {
        display: none;
    }

    .banner-indicators {
        bottom: 20px;
    }

    /* 섹션 */
    .section {
        padding: 60px 0;
    }

    .section-title h2 {
        font-size: 28px;
    }

    .philosophy-section .section-title h2 {
        font-size: 28px;
    }

    .philosophy-quote blockquote {
        font-size: 28px;
    }

    .philosophy-desc p {
        font-size: 16px;
    }

    .value-item h3 {
        font-size: 20px;
    }

    .philosophy-content {
        flex-direction: column;
    }

    .philosophy-image {
        min-height: 250px;
    }

    /* 경영이념 배너 반응형 */
    .philosophy-banner {
        padding: 60px 20px;
    }

    .philosophy-banner-content p {
        font-size: 16px;
    }

    .philosophy-banner-btns a {
        padding: 12px 28px;
        font-size: 14px;
    }

    .notice-cards {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .notice-thumb-cards {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    /* 메인 페이지 주요사업분야 */
    .business-section .business-image-wrap {
        padding: 20px 10px 20px;
        min-height: 380px;
        overflow: hidden;
    }

    .business-section .business-main-img {
        width: 250px;
        top: calc(50% + 10px);
    }

    .business-section .biz-label p {
        display: none;
    }

    .business-section .biz-label {
        max-width: 140px;
    }

    .business-section .biz-label strong {
        font-size: 12px;
        margin-bottom: 0;
    }

    .business-section .biz-label-left {
        left: 85px;
        top: calc(20% + 30px);
    }

    .business-section .biz-label-right {
        right: 25px;
        top: calc(14% + 40px);
    }

    .business-section .biz-label-bottom-left {
        left: 25px;
        bottom: 120px;
    }

    .business-section .biz-label-bottom-right {
        right: 45px;
        bottom: 122px;
    }

    .business-section .biz-label-top {
        max-width: 300px;
    }

    .solution-content,
    .solution-slide {
        flex-direction: column;
        gap: 30px;
    }

    .solution-info h3 {
        font-size: 22px;
    }

    .notice-title-area h2 {
        font-size: 26px;
    }

    /* 푸터 */
    .footer-top {
        flex-direction: column;
        gap: 20px;
        text-align: center;
    }

    .footer-links {
        flex-wrap: wrap;
        justify-content: center;
        gap: 16px;
    }

    .footer-bottom {
        flex-direction: column;
        text-align: center;
        gap: 16px;
    }
}

/* 모바일 (480px 이하) */
@media screen and (max-width: 480px) {
    .header-inner {
        height: 60px;
    }

    .logo-img {
        height: 28px;
    }

    .gnb {
        top: 60px;
        height: calc(100vh - 60px);
    }

    .hero-banner {
        min-height: 400px;
    }

    .banner-content h2 {
        font-size: 28px;
    }

    .banner-content p {
        font-size: 15px;
    }

    .section {
        padding: 50px 0;
    }

    .section-title h2 {
        font-size: 24px;
    }

    .philosophy-section .section-title h2 {
        font-size: 24px;
    }

    .philosophy-quote blockquote {
        font-size: 22px;
    }

    .philosophy-desc p {
        font-size: 15px;
    }

    .value-item h3 {
        font-size: 18px;
    }

    /* 메인 페이지 주요사업분야 */
    .business-section .business-image-wrap {
        padding: 20px 10px 20px;
        min-height: 300px;
    }

    .business-section .business-main-img {
        width: 150px;
        top: calc(50% + 10px);
    }

    .business-section .biz-label {
        max-width: 100px;
    }

    .business-section .biz-label strong {
        font-size: 10px;
    }

    .business-section .biz-label-left {
        left: 10px;
        top: calc(20% + 20px);
    }

    .business-section .biz-label-right {
        right: 10px;
        top: calc(14% + 30px);
    }

    .business-section .biz-label-bottom-left {
        left: 10px;
        bottom: 40px;
    }

    .business-section .biz-label-bottom-right {
        right: 10px;
        bottom: 42px;
    }

    .business-section .biz-label-top {
        max-width: 250px;
    }

    .biz-content-section .business-image-wrap {
        min-height: 300px;
        padding: 20px 10px 20px;
    }

    .biz-content-section .business-main-img {
        width: 160px;
        top: calc(50% - 30px);
    }

    .biz-content-section .biz-label {
        max-width: 110px;
    }

    .biz-content-section .biz-label strong {
        font-size: 10px;
    }

    .biz-content-section .biz-label-top {
        max-width: 250px;
    }

    .biz-content-section .biz-label-left {
        left: 5px;
        top: calc(20% + 10px);
    }

    .biz-content-section .biz-label-right {
        right: 5px;
        top: calc(14% + 30px);
    }

    .biz-content-section .biz-label-bottom-left {
        left: 5px;
        bottom: 140px;
    }

    .biz-content-section .biz-label-bottom-right {
        right: 5px;
        bottom: 142px;
    }

    /* 경영이념 배너 모바일 */
    .philosophy-banner {
        padding: 50px 16px;
    }

    .philosophy-banner-content p {
        font-size: 18px;
    }

    .philosophy-banner-btns {
        flex-direction: column;
        align-items: center;
        gap: 12px;
    }

    .philosophy-banner-btns a {
        padding: 12px 36px;
        font-size: 14px;
    }

    .notice-section {
        padding: 50px 0;
    }

    /* 서브페이지 모바일 */
    .sub-banner {
        height: 180px;
    }

    .sub-banner-content h2 {
        font-size: 24px;
    }

    a.sub-nav-item,
    a.sub-nav-item:link,
    a.sub-nav-item:visited {
        padding: 12px 6px;
        font-size: 12px;
    }

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

    .page-title {
        font-size: 24px;
    }

    .page-tagline {
        font-size: 14px;
    }

    .history-phase {
        margin-bottom: 50px;
    }

    .phase-growth {
        padding: 40px 20px;
    }

    .timeline-item {
        flex-direction: column;
        gap: 2px;
    }

    .timeline-date {
        flex: none;
        font-size: 13px;
    }

    .sub-cta-content p {
        font-size: 18px;
    }

    a.sub-cta-btn,
    a.sub-cta-btn:link,
    a.sub-cta-btn:visited {
        padding: 12px 30px;
        font-size: 14px;
    }

    .vision-quote blockquote {
        font-size: 18px;
    }

    .research-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }

    .research-card-img {
        padding: 12px;
    }

    .research-card-info {
        padding: 12px 14px 16px;
    }

    .research-tabs {
        flex-wrap: wrap;
        gap: 0;
    }

    .research-tab {
        padding: 8px 12px;
        font-size: 12px;
    }

    .location-map {
        height: 280px;
    }

    .location-details p {
        font-size: 13px;
    }

    /* 솔루션 쇼케이스 모바일 */
    .solution-showcase {
        padding: 0 0 40px;
    }

    .solution-showcase-catch {
        font-size: 18px;
        margin-bottom: 24px;
    }

    .solution-showcase-img {
        min-height: 200px;
    }

    .solution-showcase-info {
        padding: 24px 20px;
    }

    .solution-showcase-product {
        font-size: 18px;
    }

    .solution-showcase-prev,
    .solution-showcase-next {
        width: 36px;
        height: 36px;
    }

    .solution-showcase-prev svg,
    .solution-showcase-next svg {
        width: 18px;
        height: 18px;
    }

    /* 지속가능경영 모바일 */
    .sustain-heading {
        font-size: 18px;
    }

    .sustain-desc {
        font-size: 14px;
    }

    .sustain-list {
        padding: 18px 20px;
    }

    .sustain-list li {
        font-size: 14px;
    }

    /* 미디어센터 모바일 */
    .video-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .board-table .col-date {
        width: 80px;
        font-size: 12px;
    }

    .btn-contact-submit {
        width: 100%;
        padding: 14px 40px;
    }
}

/* ============================================================
   플로팅 챗봇
   ============================================================ */

/* 플로팅 버튼 */
.chatbot-float-btn {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: #0066cc;
    color: #fff;
    border: none;
    cursor: pointer;
    z-index: 9999;
    box-shadow: 0 4px 16px rgba(0, 102, 204, 0.4);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.2s, transform 0.2s, box-shadow 0.2s;
}
.chatbot-float-btn:hover {
    background: #0056b3;
    transform: scale(1.08);
    box-shadow: 0 6px 20px rgba(0, 102, 204, 0.5);
}
.chatbot-float-btn svg {
    width: 28px;
    height: 28px;
    fill: #fff;
}
.chatbot-float-btn .chatbot-badge {
    position: absolute;
    top: -4px;
    right: -4px;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: #e53e3e;
    font-size: 10px;
    font-weight: 700;
    color: #fff;
    display: none;
    align-items: center;
    justify-content: center;
}

/* 채팅창 */
.chatbot-window {
    position: fixed;
    bottom: 100px;
    right: 30px;
    width: 360px;
    height: 520px;
    background: #fff;
    border-radius: 16px;
    box-shadow: 0 8px 40px rgba(0, 0, 0, 0.18);
    z-index: 9998;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    transform: translateY(20px);
    opacity: 0;
    pointer-events: none;
    transition: transform 0.25s ease, opacity 0.25s ease;
}
.chatbot-window.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
}

/* 채팅창 헤더 */
.chatbot-header {
    background: linear-gradient(135deg, #0066cc 0%, #0056b3 100%);
    color: #fff;
    padding: 16px 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-shrink: 0;
}
.chatbot-header-info {
    display: flex;
    align-items: center;
    gap: 10px;
}
.chatbot-header-icon {
    width: 36px;
    height: 36px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}
.chatbot-header-icon img {
    height: 18px;
    width: auto;
    max-width: none;
    flex-shrink: 0;
}
.chatbot-header-text h4 {
    margin: 0;
    font-size: 15px;
    font-weight: 700;
}
.chatbot-header-text p {
    margin: 2px 0 0;
    font-size: 11px;
    opacity: 0.85;
}
.chatbot-close-btn {
    background: rgba(255, 255, 255, 0.15);
    border: none;
    color: #fff;
    width: 30px;
    height: 30px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.2s;
    line-height: 1;
}
.chatbot-close-btn:hover {
    background: rgba(255, 255, 255, 0.3);
}

/* 메시지 영역 */
.chatbot-messages {
    flex: 1;
    overflow-y: auto;
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    background: #f8fafc;
}
.chatbot-messages::-webkit-scrollbar {
    width: 4px;
}
.chatbot-messages::-webkit-scrollbar-track {
    background: transparent;
}
.chatbot-messages::-webkit-scrollbar-thumb {
    background: #d0d7de;
    border-radius: 4px;
}

/* 말풍선 */
.chatbot-msg {
    display: flex;
    gap: 8px;
    animation: chatMsgFadeIn 0.2s ease;
}
.chatbot-msg.user {
    flex-direction: row-reverse;
}
.chatbot-msg-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: #0066cc;
    color: #fff;
    font-size: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    align-self: flex-end;
}
.chatbot-msg.user .chatbot-msg-avatar {
    background: #e2e8f0;
    color: #4a5568;
}
.chatbot-msg-bubble {
    max-width: 75%;
    padding: 10px 14px;
    border-radius: 14px;
    font-size: 13px;
    line-height: 1.6;
    word-break: break-word;
    white-space: pre-wrap;
}
.chatbot-msg.bot .chatbot-msg-bubble {
    background: #fff;
    color: #2d3748;
    border: 1px solid #e2e8f0;
    border-bottom-left-radius: 4px;
    box-shadow: 0 1px 4px rgba(0,0,0,0.06);
}
.chatbot-msg.user .chatbot-msg-bubble {
    background: #0066cc;
    color: #fff;
    border-bottom-right-radius: 4px;
}

/* 타이핑 애니메이션 */
.chatbot-typing {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 10px 14px;
    background: #fff;
    border: 1px solid #e2e8f0;
    border-radius: 14px;
    border-bottom-left-radius: 4px;
    box-shadow: 0 1px 4px rgba(0,0,0,0.06);
    width: fit-content;
}
.chatbot-typing span {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: #a0aec0;
    animation: chatDot 1.2s infinite;
}
.chatbot-typing span:nth-child(2) { animation-delay: 0.2s; }
.chatbot-typing span:nth-child(3) { animation-delay: 0.4s; }

@keyframes chatDot {
    0%, 60%, 100% { transform: translateY(0); opacity: 0.4; }
    30% { transform: translateY(-5px); opacity: 1; }
}
@keyframes chatMsgFadeIn {
    from { opacity: 0; transform: translateY(6px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* 환영 메시지 */
.chatbot-welcome {
    text-align: center;
    padding: 20px 10px;
    color: #718096;
    font-size: 13px;
}
.chatbot-welcome .chatbot-welcome-icon {
    font-size: 36px;
    margin-bottom: 10px;
}
.chatbot-welcome h5 {
    margin: 0 0 6px;
    font-size: 14px;
    color: #2d3748;
    font-weight: 700;
}

/* 추천 질문 */
.chatbot-suggestions {
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin-top: 12px;
}
.chatbot-suggestion-btn {
    background: #fff;
    border: 1px solid #0066cc;
    color: #0066cc;
    border-radius: 20px;
    padding: 6px 14px;
    font-size: 12px;
    cursor: pointer;
    transition: background 0.15s, color 0.15s;
    text-align: left;
}
.chatbot-suggestion-btn:hover {
    background: #0066cc;
    color: #fff;
}

/* 입력 영역 */
.chatbot-input-area {
    padding: 12px 14px;
    background: #fff;
    border-top: 1px solid #e2e8f0;
    display: flex;
    gap: 8px;
    flex-shrink: 0;
}
.chatbot-input {
    flex: 1;
    border: 1px solid #e2e8f0;
    border-radius: 22px;
    padding: 9px 16px;
    font-size: 13px;
    outline: none;
    resize: none;
    font-family: inherit;
    transition: border-color 0.2s;
    line-height: 1.4;
    max-height: 80px;
    overflow-y: auto;
}
.chatbot-input:focus {
    border-color: #0066cc;
}
.chatbot-send-btn {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    background: #0066cc;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: background 0.2s;
    align-self: flex-end;
}
.chatbot-send-btn:hover:not(:disabled) {
    background: #0056b3;
}
.chatbot-send-btn:disabled {
    background: #a0aec0;
    cursor: not-allowed;
}
.chatbot-send-btn svg {
    width: 18px;
    height: 18px;
    fill: #fff;
}

/* 마이크 버튼 */
.chatbot-mic-btn {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    background: #f1f3f5;
    border: 1px solid #e2e8f0;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: background 0.2s, border-color 0.2s;
    align-self: flex-end;
}
.chatbot-mic-btn:hover {
    background: #e2e8f0;
}
.chatbot-mic-btn svg {
    width: 18px;
    height: 18px;
    fill: #718096;
    transition: fill 0.2s;
}
.chatbot-mic-btn.listening {
    background: #fed7d7;
    border-color: #fc8181;
    animation: micPulse 1s ease-in-out infinite;
}
.chatbot-mic-btn.listening svg {
    fill: #e53e3e;
}
@keyframes micPulse {
    0%, 100% { box-shadow: 0 0 0 0 rgba(229, 62, 62, 0.3); }
    50%       { box-shadow: 0 0 0 6px rgba(229, 62, 62, 0); }
}

/* 모바일 반응형 */
@media (max-width: 480px) {
    .chatbot-window {
        width: calc(100vw - 20px);
        right: 10px;
        bottom: 80px;
        height: calc(100vh - 120px);
    }
    .chatbot-float-btn {
        bottom: 20px;
        right: 16px;
    }
}

/* =================================================================
 * 2026-04 리뉴얼 : 헤더/메인 재구성
 * ================================================================= */

/* 헤더 우측 영역 (언어 + 햄버거) */
.header-right {
    display: flex;
    align-items: center;
    gap: 16px;
}

/* PC에서 햄버거 숨김 (모바일에서만 노출) */
.header-right .mobile-menu-btn {
    display: none;
}

/* 모바일/태블릿에서 햄버거 보이기 */
@media screen and (max-width: 1200px) {
    .header-right .mobile-menu-btn {
        display: flex;
    }
}

/* === 사업분야 (5개 버튼형) === */
.business-cards-section {
    background: #fff;
    padding: 100px 0 120px;
}

.business-cards-section .section-title h2 {
    color: #111;
}

.business-cards-section .business-quote {
    text-align: center;
    margin: 24px 0 24px;
}

.business-cards-section .business-quote blockquote {
    font-size: 26px;
    font-weight: 700;
    color: #0f172a;
    line-height: 1.5;
    margin: 0;
    padding: 0;
    border: none;
}

.business-cards-section .business-desc {
    text-align: center;
    max-width: 1080px;
    margin: 0 auto 64px;
}

.business-cards-section .business-desc p {
    font-size: 15px;
    line-height: 1.8;
    color: #475569;
    margin: 0 0 10px;
}

.business-cards-section .business-desc p:last-child {
    margin-bottom: 0;
}

.business-cards-section .business-desc strong {
    color: #0f172a;
    font-weight: 600;
}

.biz-cards {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 20px;
    max-width: 1320px;
    margin: 0 auto;
    padding: 0 20px;
}

.biz-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    gap: 18px;
    padding: 40px 20px 36px;
    background: #fff;
    border: 1px solid #e2e8f0;
    border-radius: 16px;
    text-align: center;
    text-decoration: none;
    color: #0f172a;
    transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
    min-height: 340px;
}

/* 1, 3, 5번째만 배경 #f0f5fb */
.biz-card:nth-child(odd) {
    background: #f0f5fb;
}

.biz-card:hover {
    transform: scale(1.05);
    box-shadow: 0 16px 40px rgba(15, 23, 42, 0.12);
    border-color: #4db8ff;
    z-index: 2;
}

.biz-card-icon {
    width: 96px;
    height: 96px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.biz-card-icon img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}

.biz-card h3 {
    font-size: 17px;
    font-weight: 700;
    color: #0f172a;
    margin: 0;
    line-height: 1.4;
    min-height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    word-break: keep-all;
    overflow-wrap: break-word;
}

.biz-card-desc {
    font-size: 13px;
    line-height: 1.65;
    color: #64748b;
    margin: 0;
    font-weight: 400;
    word-break: keep-all;
    overflow-wrap: break-word;
}

@media screen and (max-width: 1024px) {
    .biz-cards {
        grid-template-columns: repeat(3, 1fr);
    }
    .biz-card:nth-child(odd) { background: #fff; }
    .biz-card:nth-child(3n+1) { background: #f0f5fb; }
}

@media screen and (max-width: 640px) {
    .biz-cards {
        grid-template-columns: repeat(2, 1fr);
    }
    .biz-card {
        min-height: 200px;
        padding: 28px 14px;
    }
    .biz-card:nth-child(3n+1) { background: #fff; }
    .biz-card:nth-child(odd) { background: #f0f5fb; }
}

/* === AXIA 솔루션 관리자접속용 표기 === */
.solution-admin-note {
    display: inline-block;
    margin-top: 8px;
    font-size: 15px;
    font-weight: 500;
    color: #64748b;
    letter-spacing: 0;
}

/* === 데이터 통계 섹션 === */
.stats-section {
    position: relative;
    padding: 110px 0 120px;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    color: #fff;
    overflow: hidden;
}

.stats-section .stats-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(3, 16, 40, 0.72), rgba(3, 16, 40, 0.88));
}

.stats-section .container {
    position: relative;
    z-index: 2;
}

.stats-title {
    text-align: center;
    font-size: 32px;
    font-weight: 700;
    line-height: 1.5;
    margin: 0 0 60px;
    color: #fff;
    letter-spacing: 0.05em;
}

.stats-wrap {
    display: grid;
    grid-template-columns: 1fr 2.2fr;
    gap: 24px;
    max-width: 1200px;
    margin: 0 auto;
}

.stats-group {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.stats-group-title {
    background: rgba(77, 184, 255, 0.2);
    border: 1px solid rgba(77, 184, 255, 0.5);
    color: #4db8ff;
    font-size: 15px;
    font-weight: 600;
    text-align: center;
    padding: 12px 16px;
    border-radius: 6px;
    letter-spacing: -0.01em;
}

.stats-items {
    display: grid;
    gap: 16px;
    flex: 1;
}

.stats-items-1 { grid-template-columns: 1fr; }
.stats-items-4 { grid-template-columns: repeat(4, 1fr); }

.stats-item {
    background: rgba(11, 27, 54, 0.65);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 10px;
    padding: 28px 18px;
    text-align: center;
    min-height: 150px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 12px;
}

.stats-label {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.7);
    margin: 0;
}

.stats-value {
    font-size: 36px;
    font-weight: 700;
    color: #fff;
    margin: 0;
    line-height: 1.1;
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 6px;
    flex-wrap: wrap;
}

.stats-value .counter {
    color: #4db8ff;
}

.stats-unit {
    font-size: 15px;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.7);
}

@media screen and (max-width: 900px) {
    .stats-wrap {
        grid-template-columns: 1fr;
    }
    .stats-items-4 {
        grid-template-columns: repeat(2, 1fr);
    }
    .stats-title {
        font-size: 22px;
    }
    .stats-value {
        font-size: 28px;
    }
}

/* === 파트너 롤링 배너 === */
.partner-rolling-section {
    background: #fff;
    padding: 70px 0 80px;
    overflow: hidden;
}

.partner-row {
    overflow: hidden;
    width: 100%;
    padding: 12px 0;
}

.partner-track {
    display: flex;
    align-items: center;
    gap: 40px;
    width: max-content;
}

.partner-row-ltr .partner-track {
    animation: partnerLtr 60s linear infinite;
}

.partner-row-rtl .partner-track {
    animation: partnerRtl 60s linear infinite;
}

.partner-item {
    flex: 0 0 auto;
    width: 160px;
    height: 70px;
    display: flex;
    align-items: center;
    justify-content: center;
    filter: grayscale(0.15);
    transition: filter 0.25s ease, transform 0.25s ease;
}

.partner-item:hover {
    filter: none;
    transform: scale(1.05);
}

.partner-item img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}

@keyframes partnerLtr {
    0%   { transform: translateX(-50%); }
    100% { transform: translateX(0); }
}

@keyframes partnerRtl {
    0%   { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}

/* === 홍보센터(탭) === */
.pr-section {
    background: #f0f5fb;
}

.pr-section .notice-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 90px 20px 100px;
}

.pr-section .notice-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 16px;
    margin-bottom: 40px;
}

.pr-section .notice-header h2 {
    font-size: 32px;
    font-weight: 700;
    color: #0f172a;
    margin: 0;
}

.notice-tabs {
    display: inline-flex;
    background: #fff;
    border-radius: 999px;
    padding: 4px;
    border: 1px solid #e2e8f0;
}

.notice-tab {
    border: none;
    background: transparent;
    padding: 10px 22px;
    font-size: 14px;
    font-weight: 600;
    color: #64748b;
    border-radius: 999px;
    cursor: pointer;
    transition: background 0.2s, color 0.2s;
}

.notice-tab:hover {
    color: #0f172a;
}

.notice-tab.active {
    background: #0f172a;
    color: #fff;
}

.notice-tab-panel {
    display: none;
}

.notice-tab-panel.active {
    display: block;
}

.pr-section .notice-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-bottom: 30px;
}

.pr-section .notice-card {
    background: #fff;
    border: 1px solid #e2e8f0;
    border-radius: 12px;
    padding: 28px 26px;
    min-height: 160px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    text-decoration: none;
    color: inherit;
    transition: transform 0.25s, box-shadow 0.25s, border-color 0.25s;
}

.pr-section .notice-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 14px 34px rgba(15, 23, 42, 0.08);
    border-color: #4db8ff;
}

.pr-section .notice-card-title {
    font-size: 17px;
    font-weight: 600;
    color: #0f172a;
    margin: 0;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.pr-section .notice-card-desc {
    font-size: 14px;
    color: #64748b;
    line-height: 1.55;
    margin: 0;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.pr-section .notice-card-date {
    margin-top: auto;
    font-size: 13px;
    color: #94a3b8;
}

.pr-section .notice-more-wrap {
    text-align: right;
}

.pr-section a.btn-notice-more,
.pr-section a.btn-notice-more:link,
.pr-section a.btn-notice-more:visited {
    display: inline-block;
    padding: 10px 22px;
    font-size: 14px;
    font-weight: 600;
    color: #0f172a;
    background: #fff;
    border: 1px solid #0f172a;
    border-radius: 999px;
    text-decoration: none;
    transition: background 0.2s, color 0.2s;
}

.pr-section a.btn-notice-more:hover,
.pr-section a.btn-notice-more:active {
    background: #0f172a;
    color: #fff;
    border-color: #0f172a;
}

/* =================================================================
 * 2026-04 리뉴얼 : 주요사업분야 상세 서브페이지
 * ================================================================= */
.biz-detail-section {
    background: #fff;
    padding: 80px 0 120px;
}

.biz-detail-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.biz-breadcrumb {
    text-align: center;
    font-size: 13px;
    color: #94a3b8;
    letter-spacing: 0.02em;
    margin-bottom: 24px;
}

.biz-detail-title {
    text-align: center;
    font-size: 38px;
    font-weight: 700;
    color: #0f172a;
    line-height: 1.3;
    margin: 0 0 80px;
    word-break: keep-all;
}

.biz-detail-headline {
    text-align: center;
    font-size: 26px;
    font-weight: 700;
    color: #0f172a;
    line-height: 1.45;
    margin: 0 0 36px;
    word-break: keep-all;
}

.biz-detail-intro {
    text-align: center;
    font-size: 15px;
    line-height: 1.85;
    color: #475569;
    margin: 0 0 72px;
    word-break: keep-all;
}

.biz-detail-image {
    margin: 0 0 80px;
    text-align: center;
}

.biz-detail-image img {
    max-width: 100%;
    height: auto;
    display: inline-block;
}

.biz-detail-blocks {
    display: flex;
    flex-direction: column;
    gap: 56px;
    max-width: 1100px;
    margin: 0 auto;
}

.biz-detail-block {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.biz-tag {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    align-self: flex-start;
    min-width: 120px;
    padding: 10px 28px;
    font-size: 15px;
    font-weight: 700;
    color: #fff;
    background: #1666ff;
    border-radius: 999px;
    letter-spacing: -0.01em;
}

.biz-detail-block p {
    margin: 0;
    font-size: 15px;
    line-height: 1.85;
    color: #334155;
    word-break: keep-all;
    overflow-wrap: break-word;
}

@media screen and (max-width: 900px) {
    .biz-detail-section {
        padding: 60px 0 80px;
    }
    .biz-detail-title {
        font-size: 26px;
        margin-bottom: 60px;
    }
    .biz-detail-headline {
        font-size: 20px;
    }
    .biz-detail-intro {
        font-size: 14px;
        margin-bottom: 52px;
    }
    .biz-detail-blocks {
        gap: 40px;
    }
    .biz-tag {
        min-width: auto;
        padding: 8px 20px;
        font-size: 13px;
    }
    .biz-detail-block p {
        font-size: 14px;
        line-height: 1.75;
    }
}

/* === 준비중 페이지 === */
.coming-soon-section {
    background: #fff;
    padding: 140px 0 180px;
}

.coming-soon-inner {
    max-width: 720px;
    margin: 0 auto;
    padding: 0 20px;
    text-align: center;
}

.coming-soon-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 120px;
    height: 120px;
    border-radius: 50%;
    background: #f0f5fb;
    color: #1666ff;
    margin-bottom: 32px;
}

.coming-soon-title {
    font-size: 32px;
    font-weight: 700;
    color: #0f172a;
    margin: 0 0 20px;
    word-break: keep-all;
}

.coming-soon-desc {
    font-size: 16px;
    line-height: 1.75;
    color: #64748b;
    margin: 0 0 40px;
    word-break: keep-all;
}

a.coming-soon-home,
a.coming-soon-home:link,
a.coming-soon-home:visited {
    display: inline-block;
    padding: 14px 36px;
    font-size: 15px;
    font-weight: 600;
    color: #fff;
    background: #0f172a;
    border-radius: 999px;
    text-decoration: none;
    transition: background 0.2s, transform 0.2s;
}

a.coming-soon-home:hover {
    background: #1666ff;
    transform: translateY(-2px);
}

@media screen and (max-width: 640px) {
    .coming-soon-section {
        padding: 80px 0 120px;
    }
    .coming-soon-icon {
        width: 96px;
        height: 96px;
        margin-bottom: 24px;
    }
    .coming-soon-icon svg {
        width: 56px;
        height: 56px;
    }
    .coming-soon-title {
        font-size: 24px;
    }
    .coming-soon-desc {
        font-size: 14px;
    }
}

@media screen and (max-width: 900px) {
    .pr-section .notice-cards {
        grid-template-columns: 1fr;
    }
    .pr-section .notice-header h2 {
        font-size: 24px;
    }
}