@font-face {
    font-family: 'KIMM_Bold';
    src: url('fonts/KIMM_Bold.woff2') format('woff2');
    font-weight: 700;
    font-style: normal;
}

@font-face {
    font-family: 'KIMM_Light';
    src: url('fonts/KIMM_Light.woff2') format('woff2');
    font-weight: 300;
    font-style: normal;
}

/* Reset & Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --color-primary: #a8e6cf;
    /* Light green accent */
    --color-primary-dark: #88d4b8;
    --color-text-dark: #2c3e50;
    --color-text-light: #ffffff;
    --color-bg-white: #ffffff;
    --color-bg-light: #f8f9fa;
    --color-gray: #e9ecef;
    --color-gray-dark: #6c757d;

    --font-heading: 'KIMM_Bold', sans-serif;
    --font-body: 'KIMM_Bold', sans-serif;

    --transition-fast: 0.3s ease;
    --transition-slow: 0.6s ease;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-text-dark);
    background-color: var(--color-bg-white);
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

/* Typography */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-heading);
    font-weight: 700;
}

/* Utilities */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 40px;
}

@media (max-width: 991px) {
    .container {
        padding: 0 20px;
    }
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 15px 40px;
    font-family: var(--font-body);
    font-size: 1.1rem;
    font-weight: 500;
    border-radius: 4px;
    transition: var(--transition-fast);
    cursor: pointer;
    border: 1px solid transparent;
}

.btn-primary {
    background-color: var(--color-primary);
    color: var(--color-text-dark);
    border-color: var(--color-primary);
    box-shadow: 0 10px 20px rgba(168, 230, 207, 0.2);
}

.btn-primary:hover {
    background-color: var(--color-primary-dark);
    border-color: var(--color-primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 15px 25px rgba(168, 230, 207, 0.4);
}

.btn-outline {
    background-color: transparent;
    color: var(--color-text-dark);
    border-color: var(--color-text-dark);
}

.btn-outline:hover {
    background-color: var(--color-text-dark);
    color: var(--color-text-light);
}

/* Header */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    transition: background-color var(--transition-fast), box-shadow var(--transition-fast);
}

.header-transparent {
    background-color: rgba(255, 255, 255, 0);
    color: var(--color-text-light);
}

.header-solid {
    background-color: rgba(255, 255, 255, 0.98);
    color: var(--color-text-dark);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
}

.header-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 20px 40px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: padding var(--transition-fast);
}

.header-solid .header-container {
    padding: 15px 40px;
}

.logo a {
    display: flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font-heading);
    font-size: 26px;
    font-weight: 700;
    letter-spacing: -0.5px;
}

.header-logo {
    height: 30px;
    width: auto;
    mix-blend-mode: multiply;
}

.main-menu {
    display: block;
}

.main-menu ul {
    display: flex;
    gap: 40px;
}

.main-menu li {
    font-size: 16px;
    font-weight: 500;
}

.main-menu a {
    position: relative;
    padding-bottom: 5px;
    transition: color var(--transition-fast);
}

.main-menu a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-primary);
    transition: width var(--transition-fast);
}

.main-menu a:hover::after {
    width: 100%;
}

.header-transparent .main-menu a:hover {
    color: var(--color-primary);
}

.header-solid .main-menu a:hover {
    color: var(--color-primary-dark);
}

/* Mobile Menu Toggle */
.menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    z-index: 1001;
}

.menu-toggle span {
    display: block;
    width: 25px;
    height: 2px;
    background-color: currentColor;
    margin-bottom: 5px;
    transition: var(--transition-fast);
}

.menu-toggle span:last-child {
    margin-bottom: 0;
}

.menu-toggle.active span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

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

.menu-toggle.active span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* Mobile Menu styling */
.mobile-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 300px;
    height: 100vh;
    background-color: var(--color-bg-white);
    color: var(--color-text-dark);
    padding: 100px 40px 40px;
    box-shadow: -10px 0 30px rgba(0, 0, 0, 0.1);
    transition: right var(--transition-fast);
    z-index: 999;
}

.mobile-menu.active {
    right: 0;
}

.mobile-menu ul {
    display: flex;
    flex-direction: column;
    gap: 15px;
    padding: 0;
    list-style: none;
}

.mobile-menu li {
    width: 100%;
}

.mobile-menu a {
    font-size: 1.2rem;
    font-weight: 500;
    color: var(--color-text-dark);
    padding: 10px 0;
    transition: color var(--transition-fast);
}

.menu-link-wrapper {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
}

.menu-link-wrapper a {
    flex-grow: 1;
}

.dropdown-trigger {
    padding: 10px 15px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
}

.dropdown-trigger::after {
    content: '▼';
    font-size: 0.75rem;
    transition: transform 0.3s ease;
    color: var(--color-text-dark);
}

.has-dropdown.active .dropdown-trigger::after {
    transform: rotate(180deg);
}

.mobile-sub-menu {
    max-height: 0;
    overflow: hidden;
    list-style: none;
    padding-left: 15px !important;
    transition: max-height 0.4s ease, opacity 0.3s ease;
    opacity: 0;
    display: flex;
    flex-direction: column;
    gap: 5px !important;
}

.mobile-menu .has-dropdown.active .mobile-sub-menu {
    max-height: 500px;
    opacity: 1;
    padding-top: 10px !important;
    padding-bottom: 10px !important;
}

.mobile-sub-menu a {
    font-size: 1rem !important;
    font-weight: 400 !important;
    color: #444 !important;
    /* Improved readability for sub-menu items */
}

.mobile-menu a:hover {
    color: var(--color-primary-dark);
}

/* Hero Section */
.hero-section {
    position: relative;
    width: 100%;
    height: 100vh;
    overflow: hidden;
    display: flex;
    align-items: flex-end;
}

.slider {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    opacity: 0;
    z-index: 1;
    transition: opacity 2s ease-in-out, transform 6s linear;
    transform: scale(1.05);
    /* Slight zoom-in for dynamic feeling */
}

/* Active slide */
.slide.active {
    opacity: 1;
    z-index: 2;
    transform: scale(1);
}

/* Overlay to darken background */
.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to right, rgba(0, 0, 0, 0.6) 0%, rgba(0, 0, 0, 0.2) 100%);
    z-index: 3;
}

.hero-content {
    position: relative;
    z-index: 4;
    max-width: 1400px;
    width: 100%;
    margin: 0 auto;
    padding: 0 40px 80px;
}

.hero-title {
    font-family: var(--font-heading);
    font-size: 4.5rem;
    font-weight: 600;
    color: var(--color-text-light);
    line-height: 1.3;
    margin-bottom: 40px;
    text-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    animation: fadeUp 1s cubic-bezier(0.2, 0.8, 0.2, 1) forwards;
    opacity: 0;
    transform: translateY(40px);
}

.hero-content .btn {
    animation: fadeUp 1s cubic-bezier(0.2, 0.8, 0.2, 1) 0.3s forwards;
    opacity: 0;
    transform: translateY(40px);
}

@keyframes fadeUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Products Section */
.products-section {
    padding: 120px 0;
    background-color: var(--color-bg-light);
}

.section-header {
    text-align: center;
    margin-bottom: 80px;
}

.section-title {
    font-size: 2.8rem;
    color: var(--color-text-dark);
    margin-bottom: 20px;
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -15px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background-color: var(--color-primary);
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--color-gray-dark);
}

.product-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 40px;
}

.product-card {
    flex: 0 1 350px;
    background: var(--color-bg-white);
    border-radius: 4px;
    overflow: hidden;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.03);
    transition: transform var(--transition-slow), box-shadow var(--transition-slow);
}

.product-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.08);
}

.product-image-wrapper {
    width: 100%;
    height: 320px;
    overflow: hidden;
}

.product-image {
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    transition: transform 0.8s ease;
}

.product-card:hover .product-image {
    transform: scale(1.08);
}

.product-info {
    padding: 35px 30px;
    text-align: center;
    background: var(--color-bg-white);
    border-top: 1px solid var(--color-gray);
}

.product-name {
    font-size: 1.6rem;
    color: var(--color-text-dark);
    margin-bottom: 25px;
}

/* =========================================
   About Page Styles
   ========================================= */

/* Page Header */
.page-header {
    margin-top: 80px;
    /* Offset for fixed header */
    padding: 100px 0;
    text-align: center;
    background-size: cover;
    background-position: center;
    color: var(--color-text-light);
}

.page-title {
    font-size: 3.5rem;
    margin-bottom: 20px;
    animation: fadeUp 1s ease forwards;
}

.page-title-sub {
    font-size: 1.15rem;
    /* ~1/3 of 3.5rem */
    display: block;
    margin-top: 5px;
}

.page-subtitle {
    font-size: 1.2rem;
    opacity: 0.9;
    animation: fadeUp 1s ease 0.2s forwards;
    opacity: 0;
}

/* About Navigation */
.about-nav {
    background-color: var(--color-bg-white);
    border-bottom: 1px solid var(--color-gray);
    position: sticky;
    top: 70px;
    z-index: 100;
}

.about-nav ul {
    display: flex;
    justify-content: center;
    max-width: 1400px;
    margin: 0 auto;
}

.about-nav li {
    flex: 1;
    text-align: center;
}

.about-nav a {
    display: block;
    padding: 20px;
    font-size: 1.1rem;
    font-weight: 500;
    color: var(--color-text-dark);
    position: relative;
    transition: color var(--transition-fast);
}

/* Mobile About Navigation Optimization */
@media (max-width: 768px) {
    .about-nav a {
        font-size: 0.88rem;
        /* 80% of 1.1rem */
        padding: 15px 5px;
        /* Reduced padding to fit on one line */
    }
}

.about-nav a:hover {
    color: var(--color-primary-dark);
}

.about-nav a::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    width: 0;
    height: 3px;
    background-color: var(--color-primary);
    transition: width var(--transition-fast);
}

.about-nav a:hover::after {
    width: 100%;
}

.active-link {
    color: var(--color-primary-dark) !important;
}

.active-link::after {
    width: 100%;
}

/* Common Section Rules */
.about-section {
    padding: 100px 0;
    scroll-margin-top: 100px;
}

.bg-white {
    background-color: var(--color-bg-white);
}

.bg-light {
    background-color: var(--color-bg-light);
}

/* Greeting Section */
.greeting-content {
    max-width: 800px;
    margin: 0 auto;
    font-size: 1.15rem;
    line-height: 1.8;
}

.greeting-text {
    margin-bottom: 40px;
    color: var(--color-text-dark);
}

.greeting-signature {
    text-align: right;
    font-size: 1.3rem;
}

.greeting-signature strong {
    font-size: 1.5rem;
    margin-left: 10px;
}

/* History Section */
.history-content {
    max-width: 800px;
    margin: 0 auto;
}

.history-list {
    position: relative;
    padding-left: 40px;
}

.history-list::before {
    content: '';
    position: absolute;
    top: 0;
    left: 8px;
    width: 2px;
    height: 100%;
    background-color: var(--color-primary);
}

.history-list li {
    position: relative;
    margin-bottom: 40px;
    padding-left: 20px;
}

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

.history-list li::before {
    content: '';
    position: absolute;
    top: 5px;
    left: -37px;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background-color: var(--color-primary);
    border: 3px solid var(--color-bg-light);
}

.history-year {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--color-primary-dark);
    margin-bottom: 10px;
}

.history-details {
    font-size: 1.1rem;
    color: var(--color-text-dark);
}

/* Certifications Section */
.certs-content {
    margin: 0 auto;
}

.cert-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    max-width: 1100px;
    margin: 0 auto;
}

@media (max-width: 991px) {
    .cert-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 15px;
    }
}

.cert-card {
    background: var(--color-bg-white);
    border: 1px solid var(--color-gray);
    border-radius: 12px;
    padding: 20px 15px;
    text-align: center;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
    display: flex;
    flex-direction: column;
    align-items: center;
}

@media (max-width: 768px) {
    .cert-card {
        padding: 15px 10px;
    }
}

.cert-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.05);
}

.cert-box {
    width: 100%;
    aspect-ratio: 3 / 4;
    margin: 0 auto 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    box-sizing: border-box;
}

@media (max-width: 768px) {
    .cert-box {
        margin-bottom: 15px;
    }
}

.cert-box img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    display: block;
}

.cert-card p {
    font-size: 1.05rem;
    color: var(--color-text-dark);
    line-height: 1.4;
}

@media (max-width: 768px) {
    .cert-card p {
        font-size: 0.95rem;
    }
}

/* Location Section */
.location-content {
    max-width: 1000px;
    margin: 0 auto;
    text-align: center;
}

.location-info {
    margin-bottom: 40px;
}

.location-info h3 {
    font-size: 1.8rem;
    margin-bottom: 10px;
}

.address-text {
    font-size: 1.2rem;
    color: var(--color-gray-dark);
}

/* Naver Map Embed Styling */
.map-wrapper {
    width: 100%;
    height: 450px;
    background-color: var(--color-gray);
    border-radius: 8px;
    overflow: hidden;
    position: relative;
    border: 1px solid #ddd;
}

.map-placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 100%;
    text-decoration: none;
    background-color: #f1f3f5;
    transition: background-color var(--transition-fast);
}

.map-placeholder:hover {
    background-color: #e9ecef;
}

.map-inner {
    text-align: center;
    color: var(--color-text-dark);
}

.map-icon {
    font-size: 3rem;
    display: block;
    margin-bottom: 15px;
}

.map-inner h4 {
    font-size: 1.4rem;
    margin-bottom: 10px;
    color: #2db400;
    /* Naver Green */
}

.map-inner p {
    font-size: 1rem;
    color: var(--color-gray-dark);
}

/* Footer */
.main-footer {
    background-color: #2c3e50;
    /* Elegant dark blue-gray */
    color: #aeb6bf;
    padding: 60px 0;
    text-align: center;
    font-size: 0.95rem;
    font-family: 'KIMM_Light', sans-serif;
}

.footer-info {
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    gap: 15px;
}

.footer-brand {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 10px;
}

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

.footer-details .divider {
    color: #5d6d7e;
}

.copyright {
    margin-top: 20px;
    font-size: 0.85rem;
    opacity: 0.7;
}

.attribution {
    margin-top: 5px;
    font-size: 0.75rem;
    opacity: 0.6;
}

@media (max-width: 992px) {
    .main-menu {
        display: none;
    }

    .menu-toggle {
        display: block;
    }

    .hero-title {
        font-size: 3.5rem;
    }
}

@media (max-width: 768px) {


    .container,
    .header-container {
        padding: 0 20px;
    }

    .hero-content {
        padding: 0 20px;
    }

    .hero-title {
        font-size: 2.8rem;
    }

    .section-title {
        font-size: 2.2rem;
    }

    .footer-details {
        flex-direction: column;
        gap: 5px;
    }

    .footer-details .divider {
        display: none;
    }
}

/* ===================== */
/* Clients Section       */
/* ===================== */
.clients-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    max-width: 1000px;
    margin: 0 auto;
}

@media (max-width: 1200px) {
    .clients-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 20px;
    }
}

@media (max-width: 991px) {
    .clients-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 15px;
        padding: 0;
    }
}

.client-logo-card {
    background: var(--color-bg-white);
    border: 1px solid var(--color-gray);
    border-radius: 12px;
    padding: 25px;
    display: flex;
    align-items: center;
    justify-content: center;
    aspect-ratio: 16 / 9;
    /* 로고 비율 : 16 : 9 */
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

@media (max-width: 768px) {
    .client-logo-card {
        padding: 15px;
    }
}

.client-logo-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
}

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

/* ===================== */
/* Product Detail        */
/* ===================== */
.product-detail-section {
    padding: 100px 0;
}

.product-description-box {
    max-width: 900px;
    margin: 0 auto 80px;
    text-align: center;
}

.product-main-text {
    font-size: 1.5rem;
    line-height: 1.8;
    color: var(--color-text-dark);
    word-break: keep-all;
}

.product-gallery-container {
    position: relative;
    max-width: 1200px;
    margin: 0 auto;
}

.product-gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
    margin-bottom: 40px;
}

@media (max-width: 768px) {
    .product-gallery-grid {
        grid-template-columns: 1fr;
    }

    .product-detail-section {
        padding: 60px 0;
    }

    .product-main-text {
        font-size: 1.2rem;
    }
}

.gallery-item {
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform var(--transition-slow);
}

.gallery-item:hover img {
    transform: scale(1.05);
}

.gallery-cta {
    text-align: center;
    margin-top: 50px;
    z-index: 10;
    display: flex;
    justify-content: center;
    gap: 15px;
}

.product-cross-nav {
    margin-top: 60px;
    padding-top: 40px;
    border-top: 1px solid var(--color-gray);
    text-align: center;
}

.nav-label {
    display: block;
    font-size: 1.1rem;
    font-weight: 500;
    color: var(--color-gray-dark);
    margin-bottom: 25px;
}

.nav-buttons {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 12px;
}

.btn-sm {
    padding: 10px 20px;
    font-size: 0.9rem;
    border-radius: 4px;
}



/* ===================== */
/* Performance Section   */
/* ===================== */
.performance-section {
    margin-top: 60px;
    margin-bottom: 20px;
    padding: 0 40px;
}

.performance-title {
    font-size: 1.8rem;
    color: var(--color-text-dark);
    text-align: center;
    margin-bottom: 30px;
    position: relative;
    display: inline-block;
    left: 50%;
    transform: translateX(-50%);
}

.performance-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background-color: var(--color-primary);
}

.performance-table-wrapper {
    max-width: 1200px;
    margin: 0 auto;
    overflow-x: auto; /* enable horizontal scrolling on small screens */
    border-radius: 8px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.05);
}

.performance-table {
    width: 100%;
    min-width: 600px; 
    border-collapse: collapse;
    background-color: var(--color-bg-white);
    text-align: center;
}

.performance-table thead th {
    background-color: var(--color-primary);
    color: var(--color-text-dark);
    font-size: 1.1rem;
    font-weight: 700;
    padding: 15px 20px;
    border-bottom: 2px solid var(--color-primary-dark);
    white-space: nowrap;
}

.performance-table tbody td {
    padding: 15px 20px;
    border-bottom: 1px solid var(--color-gray);
    color: var(--color-text-dark);
    font-size: 1.05rem;
    vertical-align: middle;
}

.performance-table tbody th {
    font-weight: 700;
    border-right: 1px solid var(--color-gray);
    background-color: var(--color-bg-white);
    padding: 15px 20px;
    border-bottom: 1px solid var(--color-gray);
    color: var(--color-text-dark);
    font-size: 1.05rem;
    vertical-align: middle;
}

.performance-table tbody td:first-of-type {
    text-align: left;
    border-right: 1px solid var(--color-gray);
}

.performance-table tbody td:nth-of-type(2) {
    text-align: center;
    white-space: nowrap;
    font-weight: 500;
}

/* Zebra striping for non-rowspan rows */
.performance-table tbody tr:nth-child(even) {
    background-color: #fcfcfc;
}

.performance-table tbody tr:hover {
    background-color: #f0f7f4; /* slight green tint on hover */
}

@media (max-width: 768px) {
    .performance-section {
        padding: 0 20px;
        margin-top: 40px;
    }
    .performance-title {
        font-size: 1.5rem;
    }
    .performance-table thead th {
        font-size: 1rem;
        padding: 12px 10px;
    }
    .performance-table tbody td {
        font-size: 0.95rem;
        padding: 12px 10px;
    }
}

/* ===================== */
/* Contact Section       */
/* ===================== */
.contact-section {
    padding: 80px 0;
}

.contact-card-wrapper {
    max-width: 900px;
    margin: 0 auto;
    background: var(--color-bg-white);
    border-radius: 12px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.08);
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

@media (min-width: 768px) {
    .contact-card-wrapper {
        flex-direction: row;
    }
}

.contact-card .contact-img {
    height: 250px;
    background-size: cover;
    background-position: center;
}

@media (min-width: 768px) {
    .contact-card .contact-img {
        flex: 1;
        height: auto;
        min-height: 400px;
    }
}

.contact-card .contact-info {
    flex: 1;
    padding: 40px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
}

.contact-card .contact-info .desc {
    color: var(--color-gray-dark);
    font-size: 32pt;
    line-height: 1.3;
    margin-bottom: 32pt;
    font-weight: 500;
}

.contact-card .info-item {
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    width: 100%;
}

.contact-card .info-item:last-child {
    margin-bottom: 0;
}

.contact-card .info-item .icon {
    font-size: 40px;
    margin-right: 15px;
    width: 70px;
    height: 70px;
    background-color: var(--color-bg-light);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    flex-shrink: 0;
}

.contact-card .info-item .value,
.contact-card .info-item .value a {
    font-size: 2.2rem;
    font-weight: 600;
    color: var(--color-text-dark);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.contact-card .info-item .value a:hover {
    color: var(--color-primary);
}

/* =============================================
   공통 유틸리티
   ============================================= */

/* 모바일에서만 보이는 줄바꿈 */
.mobile-br {
    display: none;
}

@media (max-width: 768px) {
    .mobile-br {
        display: block;
    }
}

/* =============================================
   제품 서브내비 (product_*.html 공통)
   ============================================= */

.product-nav {
    background-color: var(--color-bg-white);
    border-bottom: 1px solid var(--color-gray);
    position: sticky;
    top: 70px;
    z-index: 100;
    transition: transform 0.3s ease-in-out, top 0.3s ease-in-out;
}

.product-nav.nav-up {
    transform: translateY(-110%);
}

.product-nav-list {
    display: flex;
    justify-content: center;
    max-width: 1400px;
    margin: 0 auto;
    list-style: none;
    padding: 0;
}

.product-nav-item {
    flex: 1;
    text-align: center;
    max-width: 200px;
}

.product-nav-link {
    display: block;
    padding: 20px 10px;
    font-size: 1.1rem;
    font-weight: 500;
    color: var(--color-text-dark);
    position: relative;
    transition: color var(--transition-fast);
    white-space: nowrap;
}

.product-nav-link:hover {
    color: var(--color-primary-dark);
}

.product-nav-link::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    width: 0;
    height: 3px;
    background-color: var(--color-primary);
    transition: width var(--transition-fast);
}

.product-nav-link:hover::after,
.product-nav-link.active::after {
    width: 100%;
}

.product-nav-link.active {
    color: #ff6b00 !important;
}

.product-nav-link.active::after {
    background-color: #ff6b00;
}

@media screen and (max-width: 768px) {
    .product-nav {
        top: 60px;
    }

    .product-nav-list {
        justify-content: flex-start;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        padding: 0 15px;
    }

    .product-nav-list::-webkit-scrollbar {
        display: none;
    }

    .product-nav-item {
        flex: 0 0 auto;
        max-width: none;
    }

    .product-nav-link {
        font-size: 1.1rem !important;
        padding: 15px 20px;
    }

    /* 제품 페이지 CTA 버튼 모바일 조정 */
    .gallery-cta .btn {
        font-size: 0.85rem !important;
        white-space: nowrap;
        padding: 12px 20px !important;
    }

    .gallery-cta {
        gap: 10px !important;
    }
}

/* =============================================
   푸터 모바일 조정
   ============================================= */

@media (max-width: 768px) {
    .main-footer .footer-info > div:nth-of-type(3) p {
        font-size: 0.8rem !important;
    }

    .main-footer .attribution {
        font-size: 0.6rem !important;
        letter-spacing: -0.5px !important;
        white-space: nowrap !important;
    }
}