body {
    font-family: 'Arial', sans-serif;
    line-height: 1.6;
    color: #333;
}

:root {
  --header-h: 60px;
}

/* Header */
.header {
    background: #fff;
    padding: 15px 0;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 20px;
}

.logo {
    color: #e74c3c;
    font-size: 24px;
    font-weight: bold;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 40px;
}

.nav-menu a {
    text-decoration: none;
    color: #333;
    font-weight: 500;
    transition: color 0.3s;
}

.nav-menu a:hover {
    color: #e74c3c;
}

.search-icon {
    width: 20px;
    height: 20px;
    cursor: pointer;
}

/* Hero Section */
.hero {
  min-height: calc(100dvh - var(--header-h));
  padding: clamp(72px, 12vh, 160px) 16px 24px; 
  background: url('../images/visual.png') center / cover no-repeat;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: #fff;
  position: relative;
  margin-top: 0;
}

.molecular-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0.3;
}

.hero-content {
    max-width: 800px;
    z-index: 2;
    position: relative;
}

.hero-subtitle {
    font-size: 16px;
    margin-bottom: 20px;
    opacity: 0.9;
}

.hero-title {
    font-size: 72px;
    font-weight: bold;
    margin-bottom: 30px;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
}

.hero-description {
    font-size: 18px;
    opacity: 0.9;
    max-width: 600px;
    margin: 0 auto;
}

.business-hand {
    position: absolute;
    right: 10%;
    bottom: 10%;
    opacity: 0.7;
}

/* Our Story Section */
.story-section {
    padding: 100px 0;
    background: #fff;
}

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

.section-title {
    font-size: 48px;
    font-weight: bold;
    margin-bottom: 20px;
}

.section-description {
    font-size: 16px;
    color: #666;
    margin-bottom: 60px;
    max-width: 500px;
}

.story-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
}

.story-image {
    position: relative;
    border-radius: 10px;
    overflow: hidden;
    height: 400px;
    background: linear-gradient(45deg, #f39c12, #e67e22);
}

.team-hands {
    width: 100%;
    height: 100%;
    object-fit: cover;
    background: url('../images/section1.png');
    background-size: cover;
}

.play-button {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 80px;
    height: 80px;
    background: rgba(255,255,255,0.9);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s;
}

.play-button:hover {
    transform: translate(-50%, -50%) scale(1.1);
}

.play-button::after {
    content: '';
    width: 0;
    height: 0;
    border-left: 20px solid #333;
    border-top: 12px solid transparent;
    border-bottom: 12px solid transparent;
    margin-left: 5px;
}

.story-text {
    padding: 40px;
}

.story-text h3 {
    font-size: 24px;
    margin-bottom: 20px;
    color: #2c3e50;
}

.story-text p {
    color: #666;
    line-height: 1.8;
    margin-bottom: 30px;
}

.read-more {
    display: inline-flex;
    align-items: center;
    color: #3498db;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s;
}

.read-more:hover {
    color: #2980b9;
}

.read-more::after {
    content: '→';
    margin-left: 10px;
    transition: transform 0.3s;
}

.read-more:hover::after {
    transform: translateX(5px);
}

/* R&D Section */
.rd-section {
    padding: 100px 0;
    background: #f8f9fa;
}

.rd-header {
    margin-bottom: 80px;
}

.rd-title {
    font-size: 48px;
    font-weight: bold;
    margin-bottom: 20px;
}

.rd-description {
    font-size: 16px;
    color: #666;
    max-width: 800px;
}

.rd-tabs {
    display: flex;
    justify-content: center;
    margin-bottom: 40px;
    gap: 40px;
    flex-wrap: wrap;
}

.tab-btn {
    background: none;
    border: none;
    font-size: 16px;
    color: #666;
    cursor: pointer;
    padding: 10px 0;
    position: relative;
    transition: color 0.3s;
}

.tab-btn.active {
    color: #2c3e50;
    font-weight: bold;
}

.tab-btn.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: #e74c3c;
}

.rd-visual {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 20px;
    height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.dna-background {
    position: absolute;
    width: 100%;
    height: 100%;
    background: url('../images/rd.png') no-repeat;
    background-size: 1500px 500px;
}

.navigation-arrows {
    position: absolute;
    bottom: 30px;
    right: 30px;
    display: flex;
    gap: 10px;
}

.arrow-btn {
    width: 50px;
    height: 50px;
    background: rgba(255,255,255,0.2);
    border: 1px solid rgba(255,255,255,0.3);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s;
    color: white;
}

.arrow-btn:hover {
    background: rgba(255,255,255,0.3);
}

/* Brand Section */
.brand-section {
    padding: 100px 0;
    background: #fff;
}

.brand-title {
    font-size: 48px;
    font-weight: bold;
    margin-bottom: 60px;
}

.brand-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-bottom: 80px;
}

.brand-item {
    border-radius: 15px;
    overflow: hidden;
    height: 200px;
    position: relative;
    cursor: pointer;
    transition: transform 0.3s;
}

.brand-item:hover {
    transform: translateY(-10px);
}

.brand-item:nth-child(1) {
    background: linear-gradient(45deg, #8B4513, #A0522D);
}

.brand-item:nth-child(2) {
    background: linear-gradient(45deg, #32CD32, #228B22);
}

.brand-item:nth-child(3) {
    background: linear-gradient(45deg, #f8f9fa, #e9ecef);
}

.brand-item:nth-child(4) {
    background: linear-gradient(45deg, #FF6B6B, #4ECDC4);
}

.brand-item:nth-child(5) {
    background: linear-gradient(45deg, #2C3E50, #34495E);
}

/* News Section */
.news-section {
    padding: 100px 0;
    background: #f8f9fa;
}

.news-header {
    display: flex;
    align-items: baseline;
    gap: 20px;
    margin-bottom: 60px;
}

.news-title {
    font-size: 48px;
    font-weight: bold;
}

.news-subtitle {
    font-size: 24px;
    color: #666;
}

.news-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
}

.news-main {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.news-item {
    background: white;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    transition: transform 0.3s;
}

.news-item:hover {
    transform: translateY(-5px);
}

.news-image {
    /* height: 200px; */
    background: linear-gradient(45deg, #3498db, #2980b9);
    position: relative;
}

.news-item:first-child .news-image {
    background: linear-gradient(45deg, #e74c3c, #c0392b);
}

.news-content {
    padding: 30px;
}

.news-date {
    color: #999;
    font-size: 14px;
    margin-bottom: 10px;
}

.news-content h3 {
    font-size: 18px;
    margin-bottom: 15px;
    line-height: 1.4;
}

.news-excerpt {
    color: #666;
    font-size: 14px;
    line-height: 1.6;
}

.news-sidebar {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.news-small {
    display: flex;
    gap: 15px;
    background: white;
    border-radius: 10px;
    padding: 20px;
    box-shadow: 0 3px 10px rgba(0,0,0,0.1);
    transition: transform 0.3s;
}

.news-small:hover {
    transform: translateX(10px);
}

.news-small-image {
    /* width: 20px; */
    height: 10px;
    border-radius: 5px;
    background: linear-gradient(45deg, #9b59b6, #8e44ad);
    flex-shrink: 0;
}

.news-small-content h4 {
    font-size: 14px;
    margin-bottom: 8px;
    line-height: 1.3;
}

.news-small-date {
    color: #999;
    font-size: 12px;
}

/* Responsive */
@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
    
    .hero-title {
        font-size: 48px;
    }
    
    .story-content {
        grid-template-columns: 1fr;
    }
    
    .rd-tabs {
        flex-direction: column;
        align-items: center;
        gap: 20px;
    }
    
    .brand-grid {
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    }
    
    .news-grid {
        grid-template-columns: 1fr;
    }
    
    .section-title, .rd-title, .brand-title, .news-title {
        font-size: 36px;
    }
}


footer{background: #000;color: #fff;}
footer .centerbox{max-width:1200px;
  margin:0 auto;
  padding:32px 20px 28px;
  box-sizing:border-box;}
footer .centerbox .left{line-height: 25px;}
footer .centerbox .left h1 img{margin-top: 20px;margin-bottom: 20px;}
footer .centerbox .left .footer-info p{color: #fff;font-weight: normal;font-size: 12px;}
footer .centerbox .left .copyright{margin-top: 50px;;color: #fff;font-weight: normal;font-size: 12px;}

footer .centerbox .right{margin-left: 20px;display: block;;bottom: 10px;}
footer .centerbox .right .footer-cta{display: flex;}
footer .centerbox .right .footer-cta .label{color: #fff;font-weight: normal;font-size: 12px;}
footer .centerbox .right .footer-cta .label2{color: #fff;font-weight: normal;font-size: 12px;}

footer .centerbox .right .footer-links{}
footer .centerbox .right .footer-links a{color: #fff;font-weight: normal;font-size: 12px;}


@media (min-width: 1025px) {
  .hero { background-position: center; }
}

@media (max-width: 1024px) {
  .hero { background-position: 60% center; }
   footer .centerbox{
    grid-template-columns: 1fr;   /* 한 컬럼 */
    gap:28px;
  }
  footer .right{
    text-align:left;              /* 왼쪽 정렬 */
    justify-self:start;
  }
  footer .right .footer-links{ justify-content:flex-start; }
}

@media (max-width: 768px) {
  .hero { 
    background-position: 70% center;
    padding-top: calc(env(safe-area-inset-top) + 72px);
  }
  .business-hand { display: none; }
}

@media (max-width: 480px){
  footer .left h1 img{ max-width:140px; }
  footer .right .footer-cta .label2{ display:block; margin-top:4px; }
}