:root {
    --primary-color: #1a365d;
    --secondary-color: #2c5282;
    --accent-color: #d69e2e;
    --text-dark: #2d3748;
    --text-light: #718096;
    --bg-light: #f7fafc;
    --bg-white: #ffffff;
    --border-color: #e2e8f0;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--bg-white);
}

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

.navbar {
    background: var(--bg-white);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 20px;
}

.header-right {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.search-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    color: #666;
    text-decoration: none;
    transition: color 0.3s;
}

.search-icon:hover {
    color: var(--primary-color);
}

.logo {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--primary-color);
    text-decoration: none;
}

.logo img {
    max-width: 336px;
    max-height: 64px;
    width: auto;
    height: auto;
    object-fit: contain;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-dark);
    font-weight: 500;
    transition: color 0.3s;
    line-height: 1.2;
}

.nav-links a:hover {
    color: var(--accent-color);
}

.nav-links .dropdown {
    position: relative;
}

.nav-links .dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    background: var(--bg-white);
    box-shadow: var(--shadow-lg);
    border-radius: 8px;
    list-style: none;
    min-width: 200px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.3s ease;
    z-index: 1000;
    padding: 0.5rem 0;
}

.nav-links .dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.nav-links .dropdown-menu li {
    padding: 0;
}

.nav-links .dropdown-menu a {
    display: block;
    padding: 0.75rem 1.25rem;
    color: var(--text-dark);
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s;
}

.nav-links .dropdown-menu a:hover {
    background: var(--bg-light);
    color: var(--accent-color);
}

.nav-links .dropdown-menu li.has-submenu {
    position: relative;
}

.nav-links .dropdown-menu li.has-submenu > a::after {
    content: '▶';
    font-size: 0.6rem;
    position: absolute;
    right: 1rem;
    top: 50%;
    transform: translateY(-50%);
}

.nav-links .dropdown-menu .submenu {
    position: absolute;
    left: 100%;
    top: 0;
    background: var(--bg-white);
    box-shadow: var(--shadow-lg);
    border-radius: 8px;
    list-style: none;
    min-width: 180px;
    opacity: 0;
    visibility: hidden;
    transform: translateX(-10px);
    transition: all 0.3s ease;
    z-index: 1001;
    padding: 0.5rem 0;
}

.nav-links .dropdown-menu li.has-submenu:hover > .submenu {
    opacity: 1;
    visibility: visible;
    transform: translateX(0);
}

.nav-links .dropdown-menu .submenu a::after {
    display: none;
}

.news-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.news-section {
    background: var(--bg-light);
    padding: 3rem 0;
}

.news-section .section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid var(--border-color);
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
}

.news-card {
    background: white;
    border-radius: 12px;
    padding: 1.5rem;
    box-shadow: var(--shadow);
    border-left: 4px solid var(--accent-color);
    transition: all 0.3s;
    display: flex;
    gap: 1rem;
}

.news-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.news-date-badge {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-width: 60px;
    padding: 0.75rem;
    background: linear-gradient(135deg, var(--primary-color), #002244);
    border-radius: 8px;
    color: white;
}

.news-day {
    font-size: 1.5rem;
    font-weight: 700;
    line-height: 1;
}

.news-month {
    font-size: 0.7rem;
    opacity: 0.9;
    margin-top: 0.2rem;
}

.news-card-image {
    display: none;
}

.news-card-content {
    flex: 1;
    padding: 0;
}

.news-card-date {
    display: none;
}

.news-card-title {
    font-size: 1rem;
    color: var(--text-dark);
    margin-bottom: 0.5rem;
    line-height: 1.4;
}

.news-card-summary {
    color: var(--text-light);
    font-size: 0.85rem;
    line-height: 1.5;
    margin-bottom: 0.75rem;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.news-card-link {
    color: var(--accent-color);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.85rem;
}

.news-card-link:hover {
    color: var(--primary-color);
}

.home-downloads-section {
    background: white;
    padding: 3rem 0;
}

.home-downloads-section .section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid var(--border-color);
}

.home-downloads-wrapper {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.home-download-category {
    background: var(--bg-light);
    border-radius: 12px;
    padding: 1.5rem;
}

.home-download-category-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1rem;
    padding-bottom: 0.75rem;
    border-bottom: 2px solid var(--primary-color);
}

.home-download-category-header.media {
    border-bottom-color: #e74c3c;
}

.home-download-icon {
    font-size: 1.5rem;
}

.home-download-category-header h3 {
    color: var(--primary-color);
    font-size: 1.1rem;
    margin: 0;
}

.home-download-category-header.media h3 {
    color: #e74c3c;
}

.home-download-items {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.home-download-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.8rem 1rem;
    background: white;
    border-radius: 8px;
    text-decoration: none;
    color: inherit;
    transition: all 0.3s;
    border: 1px solid var(--border-color);
}

.home-download-item:hover {
    border-color: var(--accent-color);
    box-shadow: var(--shadow);
    transform: translateX(5px);
}

.home-download-item.media {
    border-color: #e74c3c;
}

.home-download-item.media:hover {
    border-color: #c0392b;
}

.home-download-item-icon {
    font-size: 1.2rem;
    flex-shrink: 0;
}

.home-download-item-title {
    flex: 1;
    color: var(--text-dark);
    font-size: 0.9rem;
}

.home-download-item-btn {
    padding: 0.3rem 0.8rem;
    background: var(--primary-color);
    color: white;
    border-radius: 4px;
    font-size: 0.8rem;
    flex-shrink: 0;
}

.home-download-item:hover .home-download-item-btn {
    background: var(--accent-color);
}

.home-download-item.media .home-download-item-btn {
    background: #e74c3c;
}

.home-download-item.media:hover .home-download-item-btn {
    background: #c0392b;
}

.language-switcher {
    display: flex;
    gap: 0.5rem;
}

.language-switcher button {
    padding: 0.5rem 1rem;
    border: 2px solid var(--primary-color);
    background: transparent;
    color: var(--primary-color);
    cursor: pointer;
    font-weight: 600;
    border-radius: 4px;
    transition: all 0.3s;
}

.language-switcher button.active {
    background: var(--primary-color);
    color: white;
}

.copper-price-dropdown {
    position: relative;
}

.copper-price-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.6rem 1rem;
    background: linear-gradient(135deg, var(--primary-color) 0%, #001a33 100%);
    color: white;
    border: none;
    border-radius: 50px;
    cursor: pointer;
    font-weight: 600;
    font-size: 0.9rem;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0, 51, 102, 0.3);
}

.copper-price-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 51, 102, 0.4);
    background: linear-gradient(135deg, #004080 0%, var(--primary-color) 100%);
}

.copper-icon {
    font-size: 1rem;
}

.copper-label {
    font-weight: 700;
}

.copper-value {
    background: rgba(255, 255, 255, 0.2);
    padding: 0.2rem 0.6rem;
    border-radius: 20px;
    font-size: 0.85rem;
}

.copper-price-content {
    position: absolute;
    top: 100%;
    right: 0;
    margin-top: 0.75rem;
    background: white;
    border-radius: 12px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
    padding: 1.5rem;
    width: 560px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.3s ease;
    z-index: 1001;
}

.copper-price-dropdown:hover .copper-price-content {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.copper-price-content canvas {
    display: block;
    width: 550px;
    height: 280px;
}

.copper-date {
    font-size: 0.9rem;
    color: #3182ce;
    margin-top: 0.5rem;
}

.copper-price-value {
    font-size: 1.2rem;
    font-weight: 700;
    color: #1a202c;
    margin-left: 1rem;
}

.copper-price-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.chart-popup-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.chart-popup-header h3 {
    font-size: 1.1rem;
    color: var(--primary-color);
    margin: 0;
}

.popup-current-price {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.header-search-dropdown {
    position: relative;
}

.header-search-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: var(--bg-light);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    color: var(--primary-color);
    transition: all 0.3s;
}

.header-search-btn:hover {
    background: var(--primary-color);
    color: white;
}

.header-search-popup {
    position: absolute;
    top: 100%;
    right: 0;
    margin-top: 0.5rem;
    background: white;
    border-radius: 8px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
    padding: 1rem;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.3s;
    z-index: 1001;
    min-width: 280px;
}

.header-search-dropdown:hover .header-search-popup,
.header-search-popup.active {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.search-form {
    display: flex;
    gap: 0.5rem;
}

.search-input {
    flex: 1;
    padding: 0.6rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 0.9rem;
}

.search-input:focus {
    outline: none;
    border-color: var(--primary-color);
}

.search-submit {
    padding: 0.6rem 1rem;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.3s;
}

.search-submit:hover {
    background: var(--accent-color);
}

.hero-banner {
    position: relative;
    background: linear-gradient(135deg, #001a33 0%, #003366 50%, #004080 100%);
    color: white;
    min-height: 55vh;
    display: flex;
    align-items: center;
    overflow: hidden;
}

.banner-slider {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 2;
}

.banner-slide {
    display: none;
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    animation: fadeIn 0.5s ease-in-out;
}

.banner-slide.active {
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.banner-controls {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    align-items: center;
    gap: 1rem;
    z-index: 10;
}

.banner-prev, .banner-next {
    background: rgba(255, 255, 255, 0.2);
    border: none;
    color: white;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 1.25rem;
    transition: background 0.3s;
}

.banner-prev:hover, .banner-next:hover {
    background: rgba(255, 255, 255, 0.4);
}

.banner-dots {
    display: flex;
    gap: 0.5rem;
}

.banner-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.4);
    cursor: pointer;
    transition: all 0.3s;
}

.banner-dot.active {
    background: var(--accent-color);
    transform: scale(1.2);
}

.banner-bg-image {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    z-index: 0;
}

.banner-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(0, 26, 51, 0.7) 0%, rgba(0, 51, 102, 0.6) 50%, rgba(0, 64, 128, 0.7) 100%);
    z-index: 2;
}

.banner-content {
    position: relative;
    z-index: 3;
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    height: 100%;
    min-height: 55vh;
    padding: 0 2rem;
    box-sizing: border-box;
}

.banner-text {
    flex: 1;
    max-width: 55%;
}

.banner-text h1 {
    font-size: 3rem;
    margin-bottom: 1.5rem;
    font-weight: 700;
    line-height: 1.2;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

.banner-text p {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    line-height: 1.7;
    text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.5);
}

.banner-image {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    max-width: 45%;
}

.banner-image svg {
    max-width: 100%;
    height: auto;
}

.banner-buttons {
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.cta-button.primary {
    background: linear-gradient(135deg, #d4af37 0%, #c9a227 100%);
    color: #001a33;
    padding: 1.2rem 3rem;
    font-size: 1.1rem;
    border-radius: 50px;
    box-shadow: 0 8px 25px rgba(212, 175, 55, 0.4);
}

.cta-button.primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 35px rgba(212, 175, 55, 0.5);
    background: linear-gradient(135deg, #e6c04a 0%, #d4af37 100%);
}

.cta-button.secondary {
    background: transparent;
    color: white;
    padding: 1.2rem 3rem;
    font-size: 1.1rem;
    border-radius: 50px;
    border: 2px solid rgba(255, 255, 255, 0.4);
}

.cta-button.secondary:hover {
    border-color: #d4af37;
    background: rgba(212, 175, 55, 0.1);
    transform: translateY(-3px);
}

.banner-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.banner-image svg {
    width: 100%;
    max-width: 400px;
    height: auto;
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-20px);
    }
}

.cta-button {
    display: inline-block;
    padding: 1rem 2.5rem;
    background: var(--accent-color);
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    border-radius: 6px;
    transition: all 0.3s;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.section {
    padding: 5rem 0;
}

.section-title {
    text-align: center;
    font-size: 1.75rem;
    margin-bottom: 3rem;
    color: var(--primary-color);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.feature-card {
    background: var(--bg-white);
    padding: 2rem;
    border-radius: 8px;
    box-shadow: var(--shadow);
    transition: all 0.3s;
    text-align: center;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    color: var(--accent-color);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.category-filters {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-bottom: 2.5rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid #e5e7eb;
}

.filter-btn {
    padding: 0.6rem 1.25rem;
    background: var(--bg-light);
    color: var(--text-dark);
    border-radius: 25px;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s;
    border: 1px solid transparent;
}

.filter-btn:hover {
    background: white;
    border-color: var(--accent-color);
    color: var(--accent-color);
}

.filter-btn.active {
    background: var(--primary-color);
    color: white;
}

.products-grid-v2 {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 2rem;
}

.product-card-v2 {
    background: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: all 0.3s;
    border: 1px solid #e5e7eb;
}

.product-card-v2:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--accent-color);
}

.product-card-image {
    position: relative;
    height: 200px;
    background: linear-gradient(135deg, #f5f5f5, #e8e8e8);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.product-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.product-card-placeholder {
    width: 80px;
    height: 80px;
    color: #ccc;
}

.product-card-placeholder svg {
    width: 100%;
    height: 100%;
}

.product-category-tag {
    position: absolute;
    top: 12px;
    left: 12px;
    background: var(--primary-color);
    color: white;
    padding: 0.3rem 0.75rem;
    border-radius: 4px;
    font-size: 0.8rem;
    font-weight: 500;
}

.product-card-content {
    padding: 1.5rem;
}

.product-card-content h3 {
    font-size: 1.15rem;
    color: var(--text-dark);
    margin-bottom: 0.75rem;
}

.product-card-content p {
    font-size: 0.9rem;
    color: var(--text-light);
    line-height: 1.6;
    margin-bottom: 1.25rem;
}

.product-card-actions {
    display: flex;
    gap: 0.75rem;
    align-items: center;
}

.btn-product-pdf {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.5rem 1rem;
    background: var(--accent-color);
    color: #001a33;
    border-radius: 4px;
    text-decoration: none;
    font-size: 0.85rem;
    font-weight: 600;
    transition: all 0.3s;
}

.btn-product-pdf:hover {
    background: #c4a030;
}

.btn-product-detail {
    display: inline-flex;
    align-items: center;
    padding: 0.5rem 1rem;
    background: var(--primary-color);
    color: white;
    border-radius: 4px;
    text-decoration: none;
    font-size: 0.85rem;
    font-weight: 600;
    transition: all 0.3s;
}

.btn-product-detail:hover {
    background: #002244;
}

.product-detail-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 3rem;
    margin-bottom: 3rem;
}

.product-detail-image {
    background: var(--bg-light);
    border-radius: 12px;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 400px;
}

.product-detail-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.product-detail-placeholder {
    width: 150px;
    height: 150px;
    color: #ccc;
}

.product-detail-placeholder svg {
    width: 100%;
    height: 100%;
}

.product-detail-info {
    padding: 1rem 0;
}

.product-detail-header {
    margin-bottom: 2rem;
    padding-bottom: 1.5rem;
    border-bottom: 2px solid var(--accent-color);
}

.product-detail-category {
    display: inline-block;
    background: var(--bg-light);
    color: var(--primary-color);
    padding: 0.4rem 1rem;
    border-radius: 4px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.product-detail-header h2 {
    font-size: 2rem;
    color: var(--text-dark);
    margin: 0;
}

.product-detail-section {
    margin-bottom: 2rem;
}

.product-detail-section h3 {
    font-size: 1.1rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid #e5e7eb;
}

.product-detail-section p {
    color: var(--text-dark);
    line-height: 1.8;
}

.specs-table {
    width: 100%;
    border-collapse: collapse;
}

.specs-table tr {
    border-bottom: 1px solid #e5e7eb;
}

.specs-table th {
    text-align: left;
    padding: 0.75rem 1rem;
    width: 35%;
    font-weight: 600;
    color: var(--text-dark);
    background: var(--bg-light);
}

.specs-table td {
    padding: 0.75rem 1rem;
    color: var(--text-light);
}

.applications-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.applications-list li {
    padding: 0.5rem 0;
    padding-left: 1.5rem;
    position: relative;
    color: var(--text-dark);
}

.applications-list li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--accent-color);
    font-weight: bold;
}

.product-detail-actions {
    display: flex;
    gap: 1rem;
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid #e5e7eb;
}

.btn-inquire-detail {
    display: inline-flex;
    align-items: center;
    padding: 0.75rem 2rem;
    background: var(--accent-color);
    color: #001a33;
    border-radius: 6px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s;
}

.btn-inquire-detail:hover {
    background: #c4a030;
}

.product-detail-back {
    padding-top: 2rem;
    border-top: 1px solid #e5e7eb;
}

.back-link {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s;
}

.back-link:hover {
    color: var(--accent-color);
}

.empty-state {
    text-align: center;
    padding: 4rem 2rem;
    color: var(--text-light);
}

.about-hero {
    background: linear-gradient(135deg, var(--primary-color), #002244);
    padding: 4rem 0;
    color: white;
    text-align: center;
}

.about-hero-content h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.about-hero-content p {
    font-size: 1.25rem;
    opacity: 0.9;
}

.about-story {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-story-content h2 {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 1.5rem;
}

.about-story-content p {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--text-dark);
    margin-bottom: 1rem;
}

.about-image-placeholder {
    background: var(--bg-light);
    border-radius: 12px;
    padding: 3rem;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #ccc;
}

.about-image-placeholder svg {
    width: 100%;
    max-width: 200px;
    height: auto;
}

.timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 4px;
    background: var(--accent-color);
    transform: translateX(-50%);
}

.timeline-item {
    position: relative;
    margin-bottom: 3rem;
    width: 50%;
    padding-right: 3rem;
}

.timeline-item.left {
    left: 0;
}

.timeline-item.right {
    left: 50%;
    padding-right: 0;
    padding-left: 3rem;
}

.timeline-year {
    position: absolute;
    top: 0;
    width: 80px;
    height: 80px;
    background: var(--primary-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.1rem;
    z-index: 1;
}

.timeline-item.left .timeline-year {
    right: -40px;
}

.timeline-item.right .timeline-year {
    left: -40px;
}

.timeline-content {
    background: white;
    padding: 1.5rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
}

.timeline-content p {
    margin: 0;
    color: var(--text-dark);
    line-height: 1.6;
}

.mission-section {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
}

.mission-box {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
    text-align: center;
    transition: all 0.3s;
    border-top: 4px solid var(--accent-color);
}

.mission-box:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.mission-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.mission-box h3 {
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.mission-box p {
    color: var(--text-light);
    font-size: 0.95rem;
    line-height: 1.6;
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.team-card {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
    text-align: center;
    transition: all 0.3s;
}

.team-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.team-avatar {
    width: 100px;
    height: 100px;
    margin: 0 auto 1.5rem;
    background: var(--bg-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
}

.team-avatar svg {
    width: 60%;
    height: 60%;
}

.team-card h3 {
    color: var(--text-dark);
    margin-bottom: 0.5rem;
}

.team-position {
    display: inline-block;
    background: var(--primary-color);
    color: white;
    padding: 0.25rem 1rem;
    border-radius: 20px;
    font-size: 0.85rem;
    margin-bottom: 1rem;
}

.team-card p {
    color: var(--text-light);
    font-size: 0.9rem;
    line-height: 1.5;
}

.certifications-section {
    background: var(--bg-light);
    padding: 3rem 0;
}

.certifications-section .section-header {
    text-align: center;
    margin-bottom: 2rem;
}

.certifications-section .section-subtitle {
    color: var(--text-light);
    font-size: 1rem;
    margin-top: 0.5rem;
}

.certifications-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1.5rem;
}

.certification-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
    padding: 1.5rem 2rem;
    background: white;
    border-radius: 12px;
    box-shadow: var(--shadow);
    min-width: 140px;
}

.certification-icon {
    width: 50px;
    height: 50px;
    background: var(--accent-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: bold;
}

.certification-item span {
    font-weight: 600;
    color: var(--text-dark);
}

.about-custom-content {
    max-width: 900px;
    margin: 0 auto;
    font-size: 1.1rem;
    line-height: 1.9;
    color: var(--text-dark);
}

.about-custom-content h2 {
    color: var(--primary-color);
    font-size: 1.8rem;
    margin-top: 2rem;
    margin-bottom: 1rem;
}

.about-custom-content p {
    margin-bottom: 1.5rem;
}

.product-card {
    background: var(--bg-white);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: all 0.3s;
}

.product-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.product-image {
    width: 100%;
    height: 200px;
    background: var(--bg-light);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
}

.product-content {
    padding: 1.5rem;
}

.product-content h3 {
    margin-bottom: 0.5rem;
    color: var(--primary-color);
}

.product-content p {
    color: var(--text-light);
    margin-bottom: 1rem;
}

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

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
}

.contact-info h3 {
    margin-bottom: 1.5rem;
    color: var(--primary-color);
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
}

.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: 0.75rem;
    margin-bottom: 1rem;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 1rem;
}

.contact-form textarea {
    min-height: 120px;
    resize: vertical;
}

.contact-form button {
    width: 100%;
    padding: 1rem;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: 4px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.3s;
}

.contact-form button:hover {
    background: var(--secondary-color);
}

.footer {
    background: var(--primary-color);
    color: white;
    padding: 3rem 0 1.5rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h4 {
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

.footer-section a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    display: block;
    margin-bottom: 0.5rem;
    transition: color 0.3s;
}

.footer-section a:hover {
    color: var(--accent-color);
}

.footer-bottom {
    text-align: center;
    padding-top: 1.5rem;
    border-top: 1px solid rgba(255, 255, 255, 0.2);
    color: rgba(255, 255, 255, 0.7);
}

.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 3rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid #e5e7eb;
}

.section-header .section-title {
    font-size: 1.5rem;
    margin-bottom: 0;
}

.section-header .section-subtitle {
    font-size: 0.95rem;
    margin: 0 0 0 1rem;
    white-space: nowrap;
}

.section-more {
    color: var(--accent-color);
    text-decoration: none;
    font-weight: 600;
    white-space: nowrap;
    transition: color 0.3s;
}

.section-more:hover {
    color: var(--primary-color);
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

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

.news-card-v2 {
    background: white;
    border-radius: 12px;
    padding: 2rem;
    box-shadow: var(--shadow);
    border-left: 4px solid var(--accent-color);
    transition: all 0.3s;
    display: flex;
    gap: 1.5rem;
}

.news-card-v2:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.news-date-badge {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-width: 70px;
    padding: 1rem;
    background: linear-gradient(135deg, var(--primary-color), #002244);
    border-radius: 8px;
    color: white;
}

.news-day {
    font-size: 1.75rem;
    font-weight: 700;
    line-height: 1;
}

.news-month {
    font-size: 0.75rem;
    opacity: 0.9;
    margin-top: 0.25rem;
}

.news-content {
    flex: 1;
}

.news-content h3 {
    font-size: 1.2rem;
    color: var(--text-dark);
    margin-bottom: 0.75rem;
    line-height: 1.4;
}

.news-content p {
    color: var(--text-light);
    font-size: 0.95rem;
    line-height: 1.6;
    margin-bottom: 1rem;
}

.news-link {
    color: var(--accent-color);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.9rem;
    transition: color 0.3s;
}

.news-link:hover {
    color: var(--primary-color);
}

@media (max-width: 1024px) {
    .banner-content {
        flex-direction: column;
        text-align: center;
        padding: 4rem 0;
    }

    .banner-text {
        max-width: 100%;
    }

    .banner-text h1 {
        font-size: 2.5rem;
    }

    .banner-image {
        max-width: 100%;
    }

    .banner-buttons {
        justify-content: center;
    }

    .banner-image svg {
        max-width: 300px;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    
    .header-right {
        gap: 0.75rem;
    }
    
    .copper-price-btn {
        padding: 0.5rem 0.75rem;
        font-size: 0.8rem;
    }
    
    .copper-label {
        display: none;
    }
    
    .copper-price-content {
        width: 320px;
        right: -50px;
        padding: 1rem;
    }
    
    .chart-popup-header h3 {
        font-size: 1rem;
    }
    
    .popup-current-price {
        font-size: 1.25rem;
    }
    
    .hero-banner {
        padding: 5rem 0;
        min-height: auto;
    }
    
    .banner-text h1 {
        font-size: 2.2rem;
    }
    
    .banner-text p {
        font-size: 1.1rem;
    }
    
    .cta-button.primary,
    .cta-button.secondary {
        padding: 1rem 2rem;
        font-size: 1rem;
    }
    
    .banner-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .banner-image svg {
        max-width: 250px;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
    }
}

.products-hero {
    background: linear-gradient(135deg, #001a33 0%, #003366 50%, #004080 100%);
    color: white;
    padding: 5rem 0;
    text-align: center;
}

.products-hero-content h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.products-hero-content p {
    font-size: 1.25rem;
    opacity: 0.9;
}

.section-header {
    text-align: center;
    margin-bottom: 3rem;
}

.news-detail {
    background: white;
    border-radius: 12px;
    box-shadow: var(--shadow);
    overflow: hidden;
}

.news-detail-header {
    background: linear-gradient(135deg, var(--primary-color), #002244);
    color: white;
    padding: 2rem;
}

.news-detail-header h2 {
    margin: 0 0 1rem 0;
    font-size: 1.8rem;
}

.news-detail-meta {
    font-size: 0.9rem;
    opacity: 0.9;
}

.news-detail-content {
    padding: 2rem;
    line-height: 1.8;
    color: var(--text-dark);
}

.news-detail-content p {
    margin-bottom: 1rem;
}

.news-detail-back {
    padding: 1.5rem 2rem;
    border-top: 1px solid var(--border-color);
}

.back-btn {
    display: inline-block;
    padding: 0.8rem 1.5rem;
    background: var(--primary-color);
    color: white;
    text-decoration: none;
    border-radius: 6px;
    transition: background 0.3s;
}

.back-btn:hover {
    background: var(--accent-color);
    color: white;
}

.section-subtitle {
    color: var(--text-light);
    font-size: 1.1rem;
    margin-top: 0.5rem;
}

.products-showcase {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
    margin-bottom: 4rem;
}

.product-category {
    background: var(--bg-white);
    border-radius: 12px;
    padding: 2rem;
    text-align: center;
    box-shadow: var(--shadow);
    transition: all 0.3s;
    border: 1px solid #e5e7eb;
}

.product-category:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--accent-color);
}

.category-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 1.5rem;
    color: var(--primary-color);
}

.category-icon svg {
    width: 100%;
    height: 100%;
}

.product-category h3 {
    font-size: 1.25rem;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.product-category p {
    font-size: 0.9rem;
    color: var(--text-light);
    margin-bottom: 1rem;
}

.category-badge {
    display: inline-block;
    background: rgba(212, 175, 55, 0.1);
    color: var(--accent-color);
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
}

.products-detail-section {
    background: #f8fafc;
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
}

.product-item {
    background: var(--bg-white);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: all 0.3s;
}

.product-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.product-visual {
    background: linear-gradient(135deg, #003366 0%, #004080 100%);
    padding: 2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 180px;
}

.product-img-placeholder {
    color: white;
    font-size: 1.5rem;
    font-weight: 600;
    opacity: 0.8;
}

.product-info {
    padding: 1.5rem;
}

.product-info h4 {
    font-size: 1.25rem;
    color: var(--primary-color);
    margin-bottom: 0.75rem;
}

.product-info > p {
    color: var(--text-light);
    font-size: 0.95rem;
    margin-bottom: 1rem;
    line-height: 1.6;
}

.product-specs {
    list-style: none;
    padding: 0;
    margin: 0 0 1.5rem 0;
}

.product-specs li {
    font-size: 0.85rem;
    color: var(--text-dark);
    padding: 0.4rem 0;
    border-bottom: 1px solid #f0f0f0;
}

.product-specs li:last-child {
    border-bottom: none;
}

.btn-inquire {
    display: inline-block;
    background: var(--primary-color);
    color: white;
    padding: 0.75rem 1.5rem;
    border-radius: 6px;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.9rem;
    transition: all 0.3s;
}

.btn-inquire:hover {
    background: #002244;
    transform: translateY(-2px);
}

.sample-products-section {
    background: white;
    padding: 3rem 0;
}

.sample-products-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
}

.sample-product-card {
    background: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: all 0.3s;
    border-top: 3px solid var(--accent-color);
}

.sample-product-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.sample-product-image {
    position: relative;
    height: 180px;
    background: linear-gradient(135deg, #f5f5f5, #e8e8e8);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.sample-product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.sample-product-placeholder {
    width: 80px;
    height: 80px;
    color: #ccc;
}

.sample-product-placeholder svg {
    width: 100%;
    height: 100%;
}

.sample-pdf-btn {
    position: absolute;
    bottom: 10px;
    right: 10px;
    background: var(--accent-color);
    color: #001a33;
    padding: 0.4rem 0.75rem;
    border-radius: 4px;
    text-decoration: none;
    font-size: 0.8rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.3rem;
    transition: all 0.3s;
}

.sample-pdf-btn:hover {
    background: #c4a030;
}

.sample-product-info {
    padding: 1.25rem;
}

.sample-product-info h3 {
    font-size: 1rem;
    color: var(--text-dark);
    margin-bottom: 0.5rem;
    line-height: 1.4;
}

.sample-product-info p {
    font-size: 0.85rem;
    color: var(--text-light);
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.catalog-showcase-section {
    background: linear-gradient(135deg, #001a33 0%, #002244 50%, #003366 100%);
    padding: 3rem 0;
}

.catalog-showcase-grid {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 3rem;
    align-items: center;
}

.catalog-info-panel {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 16px;
    padding: 2rem;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.catalog-badge {
    display: inline-block;
    background: var(--accent-color);
    color: #001a33;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-weight: 700;
    font-size: 0.8rem;
    margin-bottom: 1rem;
}

.catalog-info-panel h3 {
    font-size: 1.5rem;
    margin: 0 0 0.75rem 0;
    color: white;
}

.catalog-info-panel p {
    opacity: 0.8;
    margin: 0 0 1.5rem 0;
    color: white;
    line-height: 1.6;
}

.catalog-features {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.catalog-feature {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(255, 255, 255, 0.1);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.85rem;
    color: white;
}

.catalog-feature-icon {
    font-size: 1rem;
}

.catalog-download-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--accent-color);
    color: #001a33;
    padding: 0.85rem 1.75rem;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 700;
    font-size: 1rem;
    transition: all 0.3s;
}

.catalog-download-btn:hover {
    background: #c4a030;
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(214, 158, 46, 0.3);
}

.catalog-products-preview {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
}

.preview-product-item {
    background: rgba(255, 255, 255, 0.95);
    border-radius: 12px;
    padding: 0.75rem;
    text-align: center;
    transition: all 0.3s;
}

.preview-product-item:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
}

.preview-product-item img {
    width: 100%;
    height: 80px;
    object-fit: cover;
    border-radius: 8px;
    margin-bottom: 0.5rem;
}

.preview-placeholder {
    width: 100%;
    height: 80px;
    background: var(--bg-light);
    border-radius: 8px;
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #ccc;
}

.preview-placeholder svg {
    width: 50%;
    height: 50%;
}

.preview-product-item span {
    display: block;
    font-size: 0.85rem;
    color: var(--text-dark);
    font-weight: 500;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.preview-more {
    grid-column: span 2;
    text-align: center;
    padding: 0.5rem;
}

.preview-more a {
    color: var(--accent-color);
    font-weight: 600;
    text-decoration: none;
    transition: color 0.3s;
}

.preview-more a:hover {
    color: white;
}

@media (max-width: 768px) {
    .catalog-showcase-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .catalog-products-preview {
        grid-template-columns: repeat(4, 1fr);
    }

    .preview-product-item img,
    .preview-placeholder {
        height: 60px;
    }

    .preview-product-item span {
        font-size: 0.75rem;
    }
}

@media (max-width: 1024px) {
    .products-showcase {
        grid-template-columns: repeat(2, 1fr);
    }

    .catalog-box {
        flex-direction: column;
        text-align: center;
    }

    .catalog-visual {
        margin-top: 2rem;
    }

    .news-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .section-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }

    .sample-products-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .product-detail-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .products-grid-v2 {
        grid-template-columns: repeat(2, 1fr);
    }
}

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

    .news-card-v2 {
        flex-direction: column;
    }

    .sample-products-grid {
        grid-template-columns: 1fr;
    }

    .news-date-badge {
        flex-direction: row;
        gap: 0.5rem;
        min-width: auto;
        padding: 0.75rem 1.5rem;
    }

    .news-day {
        font-size: 1.25rem;
    }

    .about-story {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .timeline::before {
        left: 30px;
    }

    .timeline-item {
        width: 100%;
        padding-left: 80px;
        padding-right: 0;
    }

    .timeline-item.left,
    .timeline-item.right {
        left: 0;
    }

    .timeline-year {
        left: 0 !important;
        right: auto !important;
        width: 60px;
        height: 60px;
        font-size: 0.9rem;
    }

    .mission-section {
        grid-template-columns: repeat(2, 1fr);
    }

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

    .certifications-grid {
        gap: 1rem;
    }

    .certification-item {
        padding: 1rem;
        min-width: 120px;
    }

    .products-showcase {
        grid-template-columns: 1fr;
    }

    .products-hero-content h1 {
        font-size: 1.75rem;
    }

    .catalog-content h3 {
        font-size: 1.5rem;
    }
}

.catalog-download-section {
    background: var(--bg-light);
    padding: 3rem 0;
}

.catalog-media-wrapper {
    display: flex;
    gap: 2rem;
    max-width: 1100px;
    margin: 0 auto;
}

.catalog-download-box {
    flex: 1;
    display: flex;
    align-items: center;
    gap: 2rem;
    background: white;
    border-radius: 12px;
    padding: 1.5rem;
    box-shadow: var(--shadow);
    border-left: 4px solid var(--accent-color);
}

.catalog-cover {
    flex: 0 0 180px;
    width: 180px;
    height: 240px;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--shadow);
}

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

.catalog-cover-placeholder {
    background: linear-gradient(135deg, var(--primary-color) 0%, #003366 100%);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    position: relative;
}

.catalog-cover-icon {
    width: 60px;
    height: 80px;
    color: var(--accent-color);
}

.catalog-cover-icon svg {
    width: 100%;
    height: 100%;
}

.catalog-year-badge {
    position: absolute;
    bottom: 10px;
    background: var(--accent-color);
    color: var(--primary-color);
    padding: 0.2rem 0.6rem;
    border-radius: 4px;
    font-weight: 700;
    font-size: 0.85rem;
}

.media-disc-box {
    flex: 0 0 280px;
    background: white;
    border-radius: 12px;
    padding: 1.5rem;
    box-shadow: var(--shadow);
    border-left: 4px solid var(--accent-color);
    display: flex;
    gap: 1rem;
    align-items: center;
}

.media-disc-icon {
    flex: 0 0 80px;
    width: 80px;
    height: 80px;
    color: var(--accent-color);
    background-size: cover;
    background-position: center;
    border-radius: 8px;
}

.media-disc-icon svg {
    width: 100%;
    height: 100%;
}

.media-disc-icon:not([style*="background-image"]) svg {
    display: block;
}

.media-disc-icon[style*="background-image"] svg {
    display: none;
}

.media-disc-info {
    flex: 1;
}

.media-disc-label {
    display: inline-block;
    background: var(--accent-color);
    color: var(--primary-color);
    padding: 0.2rem 0.6rem;
    border-radius: 4px;
    font-weight: 700;
    font-size: 0.75rem;
    margin-bottom: 0.5rem;
}

.media-disc-info h4 {
    font-size: 1.1rem;
    color: var(--primary-color);
    margin: 0 0 0.3rem 0;
}

.media-disc-info p {
    font-size: 0.85rem;
    color: var(--text-light);
    margin: 0 0 0.75rem 0;
    line-height: 1.4;
}

.media-disc-btn {
    display: inline-block;
    background: var(--accent-color);
    color: var(--primary-color);
    padding: 0.5rem 1rem;
    border-radius: 4px;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.85rem;
}

.media-disc-btn.disabled {
    background: #ddd;
    color: #999;
    cursor: not-allowed;
}

.catalog-info {
    flex: 1;
}

.catalog-info-year {
    display: inline-block;
    background: var(--accent-color);
    color: #001a33;
    padding: 0.25rem 0.75rem;
    border-radius: 4px;
    font-weight: 700;
    font-size: 0.85rem;
    margin-bottom: 1rem;
}

.catalog-info h3 {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin: 0 0 0.5rem 0;
}

.catalog-info p {
    color: var(--text-light);
    font-size: 0.95rem;
    line-height: 1.5;
    margin: 0 0 1.25rem 0;
}

.catalog-download-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--accent-color);
    color: var(--primary-color);
    padding: 0.75rem 1.5rem;
    border-radius: 6px;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95rem;
    transition: all 0.3s;
}

.catalog-download-btn:hover {
    background: #c9a227;
    transform: translateY(-2px);
}

.catalog-download-btn.disabled {
    background: #ddd;
    color: #999;
    cursor: not-allowed;
}

.catalog-download-btn.disabled:hover {
    transform: none;
}

.section-divider {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1.5rem 0;
}

.divider-dots {
    display: flex;
    gap: 0.75rem;
    align-items: center;
}

.divider-dots span {
    width: 6px;
    height: 6px;
    background: var(--accent-color);
    border-radius: 50%;
}

.divider-dots span:nth-child(2) {
    width: 8px;
    height: 8px;
}

.divider-dots span:nth-child(3) {
    width: 6px;
    height: 6px;
}

.divider-line {
    display: none;
}

.divider-icon {
    display: none;
}

@media (max-width: 768px) {
    .catalog-download-box {
        flex-direction: column;
        text-align: center;
        gap: 1.5rem;
        padding: 1.5rem;
    }
    .catalog-cover {
        flex: 0 0 auto;
        width: 160px;
        height: 220px;
    }
    .catalog-info h3 {
        font-size: 1.5rem;
    }

    .catalog-media-wrapper {
        flex-direction: column;
    }

    .media-disc-box {
        flex: 0 0 auto;
        width: 100%;
    }
}

.industry-hero {
    background: linear-gradient(135deg, var(--primary-color) 0%, #003366 100%);
    padding: 3rem 0;
    color: white;
}

.industry-breadcrumb {
    margin-bottom: 1rem;
    font-size: 0.9rem;
}

.industry-breadcrumb a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
}

.industry-breadcrumb a:hover {
    color: var(--accent-color);
}

.industry-breadcrumb span {
    margin: 0 0.5rem;
    color: rgba(255, 255, 255, 0.5);
}

.industry-title {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
}

.industry-subtitle {
    font-size: 1.1rem;
    opacity: 0.9;
}

.industry-content-section {
    padding: 3rem 0;
}

.industry-description {
    background: var(--bg-light);
    padding: 2rem;
    border-radius: 8px;
    margin-bottom: 2rem;
    font-size: 1.1rem;
    line-height: 1.8;
}

.industry-articles-section {
    margin-bottom: 2rem;
}

.industry-articles-section .section-title {
    color: var(--primary-color);
    font-size: 1.3rem;
    margin-bottom: 1rem;
}

.articles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1rem;
    margin-bottom: 2rem;
}

.article-card {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1.2rem;
    background: white;
    border-radius: 8px;
    box-shadow: var(--shadow);
    text-decoration: none;
    color: inherit;
    transition: all 0.3s;
    border-left: 4px solid var(--accent-color);
}

.article-card:hover {
    transform: translateX(5px);
    box-shadow: var(--shadow-lg);
}

.article-icon {
    font-size: 1.5rem;
    flex-shrink: 0;
}

.article-image {
    width: 80px;
    height: 60px;
    background-size: cover;
    background-position: center;
    border-radius: 4px;
    flex-shrink: 0;
}

.article-content h3 {
    font-size: 1rem;
    margin-bottom: 0.3rem;
    color: var(--text-dark);
}

.read-more {
    font-size: 0.85rem;
    color: var(--accent-color);
}

.industry-section {
    background: white;
    border-radius: 12px;
    padding: 2rem;
    margin-bottom: 2rem;
    box-shadow: var(--shadow);
}

.industry-cat-title {
    color: var(--primary-color);
    font-size: 1.5rem;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--accent-color);
}

.industry-section-desc {
    color: var(--text-light);
    font-size: 1rem;
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.articles-row {
    display: flex;
    flex-wrap: wrap;
    gap: 0.8rem;
    margin-bottom: 1.5rem;
}

.article-mini-card {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.8rem 1.2rem;
    background: var(--bg-light);
    border-radius: 6px;
    text-decoration: none;
    color: inherit;
    transition: all 0.3s;
    flex: 1;
    min-width: 250px;
}

.article-mini-card:hover {
    background: var(--primary-color);
    color: white;
}

.article-mini-card:hover .article-mini-icon,
.article-mini-card:hover .article-mini-title,
.article-mini-card:hover .article-mini-link {
    color: white;
}

.article-mini-img {
    width: 40px;
    height: 30px;
    object-fit: cover;
    border-radius: 3px;
}

.article-mini-icon {
    font-size: 1.2rem;
}

.article-mini-title {
    flex: 1;
    font-size: 0.95rem;
    color: var(--text-dark);
}

.article-mini-link {
    font-size: 0.85rem;
    color: var(--accent-color);
}

.industry-sub-cats {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.sub-cat-tag {
    padding: 0.5rem 1rem;
    background: var(--primary-color);
    color: white;
    border-radius: 20px;
    text-decoration: none;
    font-size: 0.9rem;
    transition: all 0.3s;
}

.sub-cat-tag:hover {
    background: var(--accent-color);
    transform: translateY(-2px);
}

.industry-overview-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1rem;
}

.industry-overview-card {
    background: var(--bg-light);
    border-radius: 8px;
    padding: 1.5rem;
    text-decoration: none;
    color: inherit;
    transition: all 0.3s;
    border-left: 4px solid var(--accent-color);
}

.industry-overview-card:hover {
    background: var(--primary-color);
    color: white;
}

.industry-overview-card:hover .industry-card-preview {
    color: rgba(255, 255, 255, 0.9);
}

.industry-card-preview {
    color: var(--text-light);
    font-size: 0.95rem;
}

.industry-list-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
}

.industry-list-card {
    background: white;
    border-radius: 12px;
    padding: 1.5rem;
    box-shadow: var(--shadow);
    border-top: 4px solid var(--accent-color);
    text-decoration: none;
    color: inherit;
    transition: all 0.3s;
}

.industry-list-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.industry-list-card h3 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.industry-list-card p {
    color: var(--text-light);
    font-size: 0.9rem;
}

.industry-full-content {
    background: white;
    border-radius: 12px;
    padding: 2rem;
    box-shadow: var(--shadow);
}

.content-text {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--text-dark);
    margin-bottom: 2rem;
}

.content-placeholder {
    text-align: center;
    padding: 3rem;
    color: var(--text-light);
}

.industry-back-link {
    margin-top: 2rem;
}

.industry-main-cat {
    margin-bottom: 3rem;
}

.main-cat-title {
    font-size: 1.8rem;
    color: var(--primary-color);
    margin-bottom: 1.5rem;
    padding-bottom: 0.5rem;
    border-bottom: 3px solid var(--accent-color);
}

.industry-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
}

.industry-card {
    background: white;
    border-radius: 12px;
    padding: 1.5rem;
    box-shadow: var(--shadow);
    text-decoration: none;
    color: inherit;
    transition: all 0.3s;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.industry-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.industry-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.industry-info h3 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.industry-info p {
    color: var(--text-light);
    font-size: 0.9rem;
}

.industry-search-box {
    max-width: 500px;
    margin: 0 auto 2rem;
}

.industry-search-input {
    width: 100%;
    padding: 1rem 1.5rem;
    border: 2px solid #e2e8f0;
    border-radius: 50px;
    font-size: 1rem;
    transition: border-color 0.3s;
}

.industry-search-input:focus {
    outline: none;
    border-color: var(--accent-color);
}

.industry-list-container {
    padding: 3rem 0;
}

.industry-downloads-section {
    margin-top: 2rem;
}

.industry-downloads-section .section-title {
    color: var(--primary-color);
    font-size: 1.3rem;
    margin-bottom: 1rem;
}

.downloads-container {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
}

.download-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.8rem 1.2rem;
    background: var(--bg-light);
    border-radius: 6px;
    text-decoration: none;
    color: inherit;
    transition: all 0.3s;
}

.download-item:hover {
    background: var(--accent-color);
    color: var(--primary-color);
}

.downloads-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(700px, 1fr));
    gap: 2rem;
}

.download-card {
    background: white;
    border-radius: 12px;
    box-shadow: var(--shadow);
    overflow: hidden;
    transition: all 0.3s;
    display: flex;
}

.download-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.download-card:not(.media) {
    flex-direction: column;
}

.download-card:not(.media) .download-card-right {
    padding: 0;
}

.download-card:not(.media) .download-card-header {
    margin: 0;
    padding: 1.2rem 2rem;
    border-radius: 0;
}

.download-card:not(.media) .download-card-desc {
    margin: 1rem 2rem;
}

.download-card:not(.media) .download-card-footer {
    padding: 0 2rem 1.5rem 2rem;
}

.download-card-left {
    width: 200px;
    height: 260px;
    flex-shrink: 0;
    background: var(--bg-light);
    display: flex;
    align-items: center;
    justify-content: center;
}

.download-card-cover {
    width: 180px;
    height: 240px;
    background-size: cover;
    background-position: center;
    border-radius: 4px;
}

.download-card-icon-lg {
    width: 180px;
    height: 240px;
    background: linear-gradient(135deg, var(--primary-color), #002244);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 4rem;
}

.download-card.media .download-card-icon-lg {
    background: linear-gradient(135deg, #e74c3c, #c0392b);
}

.download-card.media .download-card-left {
    width: 100px;
    height: 120px;
    padding: 8px;
    display: none;
}

.download-card.media .download-card-right {
    width: 100%;
}

.download-card.media .download-card-cover {
    width: 84px;
    height: 104px;
}

.download-card.media .download-card-icon-lg {
    width: 84px;
    height: 104px;
    font-size: 2.5rem;
}

.download-card-right {
    flex: 1;
    padding: 1.5rem 2rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.download-card-header {
    background: var(--primary-color);
    color: white;
    padding: 1rem 1.5rem;
    margin: -1.5rem -2rem 1rem -2rem;
}

.download-card.media .download-card-header {
    background: #e74c3c;
}

.download-card-image {
    margin: 1rem 0;
    text-align: center;
}

.download-card.media .download-card-image img {
    max-width: 100%;
    max-height: 500px;
    border-radius: 8px;
    box-shadow: var(--shadow);
}

.download-card:not(.media) .download-card-image img {
    max-width: 100%;
    max-height: 350px;
    border-radius: 8px;
    box-shadow: var(--shadow);
}

.download-card-title {
    color: white;
    font-size: 1.3rem;
    margin: 0;
    font-weight: 600;
}

.download-card-desc {
    color: var(--text-light);
    font-size: 0.9rem;
    line-height: 1.7;
    margin-bottom: 1.5rem;
    padding: 1rem;
    background: var(--bg-light);
    border-radius: 8px;
    border-left: 3px solid var(--primary-color);
}

.download-card.media .download-card-desc {
    border-left-color: #e74c3c;
}

.download-card.media .download-card-type {
    border-left-color: #e74c3c;
}

.download-card-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}

.download-card-type {
    background: var(--bg-light);
    padding: 0.3rem 0.6rem;
    border-radius: 4px;
    font-size: 0.85rem;
    color: var(--text-light);
}

.download-card-btn {
    display: inline-block;
    padding: 0.8rem 2rem;
    background: var(--primary-color);
    color: white;
    text-decoration: none;
    text-align: center;
    font-weight: 600;
    transition: all 0.3s;
    border-radius: 6px;
}

.download-card-btn:hover {
    background: var(--accent-color);
    color: white;
}

.download-card.media .download-card-btn {
    background: #e74c3c;
}

.download-card.media .download-card-btn:hover {
    background: #c0392b;
}

.download-card.media {
    border-left-color: #e74c3c;
}

.page-header {
    background: linear-gradient(135deg, var(--primary-color), #002244);
    color: white;
    padding: 3rem 0;
    text-align: center;
}

.downloads-page-section {
    padding: 3rem 0;
    background: #f8fafc;
}

.downloads-type-tabs {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
    justify-content: center;
}

.download-tab {
    padding: 0.8rem 1.5rem;
    background: white;
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
    text-decoration: none;
    border-radius: 8px;
    font-weight: 600;
    transition: all 0.3s;
}

.download-tab:hover {
    background: var(--primary-color);
    color: white;
}

.download-tab.active {
    background: var(--primary-color);
    color: white;
}

.downloads-empty {
    text-align: center;
    padding: 4rem 2rem;
    background: white;
    border-radius: 12px;
    box-shadow: var(--shadow);
}

.downloads-empty-icon {
    font-size: 4rem;
    margin-bottom: 1rem;
}

.downloads-empty h3 {
    color: var(--text-dark);
    margin-bottom: 0.5rem;
}

.downloads-empty p {
    color: var(--text-light);
}