/* CSS Variables */
:root {
    --primary-color: #ff7f00;
    --secondary-color: #fff;
    --text-color: #000;
    --text-light: #6c757d;
    --bg-light: #f8f9fa;
    --bg-gray: #f5f5f5;
    --bg-dark: #000;
    --border-radius: 10px;
    --box-shadow: 0 4px 15px rgba(0,0,0,0.1);
    --transition: all 0.3s ease;
    --font-family: 'Roboto', sans-serif;
}

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

body {
    font-family: var(--font-family);
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--secondary-color);
}

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

/* Skip Link for Accessibility */
.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--primary-color);
    color: var(--secondary-color);
    padding: 8px;
    z-index: 10000;
    transition: top 0.3s;
    text-decoration: none;
}

.skip-link:focus {
    top: 0;
}

/* Navigation */
.navbar {
    background-color: transparent;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    transition: background-color 0.3s ease;
}

.navbar.scrolled {
    background-color: rgba(255, 255, 255, 0.95);
}

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

.logo img {
    height: 80px;
    width: auto;
}

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

.nav-links li {
    margin-left: 30px;
}

.nav-links a {
    color: var(--secondary-color);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.5);
}

.nav-links a:hover,
.nav-links a:focus {
    color: var(--primary-color);
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

.navbar.scrolled .nav-links a {
    color: var(--text-color);
    text-shadow: none;
}

.hamburger {
    display: none;
    font-size: 1.5rem;
    color: var(--text-color);
    cursor: pointer;
}

/* Hero Video Section */
.hero-video {
    position: relative;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: flex-start;
    overflow: hidden;
}

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

.video-background video {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 100vw;
    height: 100vh;
    transform: translate(-50%, -50%);
    min-width: 100%;
    min-height: 100%;
    object-fit: cover;
}

/* Video Overlay */
.video-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 2;
}

.hero-video .container {
    position: relative;
    z-index: 3;
    text-align: left;
    padding: 0 20px;
}

.hero-content {
    max-width: 800px;
    margin: 0;
    animation: fadeInUp 1s ease-out;
    color: var(--secondary-color);
}

.hero-content h1 {
    font-size: 3.5rem;
    color: var(--secondary-color);
    margin-bottom: 20px;
    line-height: 1.2;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

.hero-content p {
    font-size: 1.4rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 30px;
    line-height: 1.6;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.5);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
    cursor: pointer;
    border: none;
    font-size: 1rem;
}

.btn-primary {
    background-color: var(--secondary-color);
    color: var(--primary-color);
    margin-right: 15px;
}

.btn-primary:hover,
.btn-primary:focus {
    background-color: #f8f9fa;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

.btn-secondary {
    background-color: transparent;
    color: var(--secondary-color);
    border: 2px solid var(--secondary-color);
}

.btn-secondary:hover,
.btn-secondary:focus {
    background-color: var(--secondary-color);
    color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* Section Title */
.section-title {
    text-align: center;
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-color);
    margin-bottom: 50px;
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -15px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background-color: var(--primary-color);
    border-radius: 2px;
}

/* Features Section */
.features {
    padding: 80px 0;
    background-color: var(--secondary-color);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.feature-item {
    background-color: var(--bg-light);
    padding: 40px 20px;
    border-radius: var(--border-radius);
    text-align: center;
    transition: var(--transition);
}

.feature-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.feature-item i {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.feature-item h3 {
    font-size: 1.5rem;
    color: var(--text-color);
    margin-bottom: 15px;
}

.feature-item p {
    color: var(--text-light);
    font-size: 1rem;
}

/* Product Showcase */
.product-showcase {
    margin-bottom: 60px;
    padding: 30px;
    background-color: #ffffff;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

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

.showcase-image {
    overflow: hidden;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

.showcase-image img {
    width: 100%;
    height: 400px;
    object-fit: cover;
    display: block;
    transition: transform 0.3s ease;
}

.showcase-image:hover img {
    transform: scale(1.02);
}

.showcase-info h3 {
    color: var(--primary-color);
    font-size: 1.8rem;
    margin-bottom: 20px;
}

.showcase-info p {
    color: #666;
    line-height: 1.6;
    margin-bottom: 30px;
    font-size: 1.1rem;
}

.showcase-features {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.feature-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 20px;
    background-color: #f8f9fa;
    border-radius: 8px;
    transition: all 0.3s ease;
}

.feature-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.feature-item i {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 10px;
}

.feature-item span {
    color: #333;
    font-weight: 500;
}

/* Specifications Section */
.specifications {
    padding: 100px 0;
    background-color: #f8f9fa;
}

@media (max-width: 768px) {
    .showcase-content {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .showcase-image img {
        height: 300px;
    }
    
    .showcase-features {
        grid-template-columns: 1fr;
        gap: 15px;
    }
    
    .product-showcase {
        padding: 20px;
        margin-bottom: 40px;
    }
}

.specs-section {
    margin-bottom: 60px;
    padding: 20px;
    background-color: var(--bg-light);
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.specs-title {
    color: var(--primary-color);
    margin-bottom: 30px;
    font-size: 1.5em;
    text-align: center;
}

.specs-table-container {
    overflow-x: auto;
}

.specs-table {
    width: 100%;
    border-collapse: collapse;
    margin: 0 auto;
    background-color: var(--secondary-color);
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.specs-table th,
.specs-table td {
    padding: 12px 15px;
    text-align: left;
    border-bottom: 1px solid #eee;
}

.specs-table th {
    background-color: var(--primary-color);
    color: var(--secondary-color);
    font-weight: 600;
}

.specs-table tr:nth-child(even) {
    background-color: var(--bg-light);
}

.specs-table tr:hover {
    background-color: #f1f1f1;
}

.specs-table td:first-child {
    font-weight: 600;
    color: #333;
}

/* Applications Section */
.applications {
    padding: 80px 0;
    background-color: var(--secondary-color);
}

.applications-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.application-item {
    background-color: var(--bg-light);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: var(--transition);
}

.application-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
}

.application-item img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.application-item h3 {
    font-size: 1.3rem;
    color: var(--text-color);
    margin: 20px;
    text-align: center;
}

.application-item p {
    color: var(--text-light);
    margin: 0 20px 20px;
    text-align: center;
}

/* Advantages Section */
.advantages {
    padding: 80px 0;
    background-color: var(--secondary-color);
}

.advantage-section {
    margin-bottom: 60px;
}

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

.advantage-title {
    font-size: 1.8rem;
    margin-bottom: 20px;
    color: var(--primary-color);
}

/* Product Portfolio */
.product-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    margin-top: 40px;
}

.product-item {
    background-color: var(--secondary-color);
    padding: 30px;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    transition: var(--transition);
    text-align: center;
}

.product-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.15);
}

.product-item i {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.product-item h4 {
    font-size: 1.3rem;
    margin-bottom: 15px;
    color: var(--text-color);
    font-weight: 600;
}

.product-item p {
    color: #666;
    line-height: 1.6;
}

.product-item ul {
    list-style: disc;
    padding-left: 20px;
    margin: 0;
}

.product-item li {
    color: #666;
    line-height: 1.6;
    margin-bottom: 8px;
    text-align: left;
}

/* Technological Leadership */
.technology-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.technology-item {
    background-color: var(--bg-light);
    padding: 35px;
    border-radius: var(--border-radius);
    border-left: 5px solid var(--primary-color);
    transition: var(--transition);
}

.technology-item:hover {
    transform: translateX(5px);
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
}

.technology-item i {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 20px;
    display: block;
}

.technology-item h4 {
    font-size: 1.4rem;
    margin-bottom: 15px;
    color: var(--primary-color);
    font-weight: 600;
}

.technology-item p {
    color: var(--text-color);
    line-height: 1.7;
}

/* Contact Section */
.contact {
    padding: 80px 0;
    background-color: var(--secondary-color);
}

.contact-content {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
}

.contact-info {
    flex: 1;
    min-width: 300px;
    margin-bottom: 40px;
}

.customer-service {
    text-align: center;
    margin-bottom: 30px;
    padding: 20px;
    background-color: var(--bg-light);
    border-radius: var(--border-radius);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.customer-service img {
    width: 180px;
    height: 180px;
    border-radius: 50%;
    object-fit: cover;
    margin-bottom: 15px;
    border: 3px solid var(--primary-color);
}

.service-name {
    font-size: 1.2rem;
    font-weight: bold;
    margin-bottom: 5px;
    color: #333;
}

.service-position {
    font-size: 0.9rem;
    color: #666;
    margin-bottom: 10px;
}

.service-phone {
    font-size: 1rem;
    color: var(--primary-color);
    font-weight: bold;
}

.contact-info h3 {
    font-size: 1.8rem;
    color: var(--text-color);
    margin-bottom: 30px;
}

.contact-item {
    display: flex;
    align-items: center;
    margin-bottom: 20px;
    color: #555;
}

.contact-item i {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-right: 20px;
    width: 30px;
    text-align: center;
}

.contact-form {
    flex: 1;
    min-width: 300px;
    background-color: var(--bg-light);
    padding: 40px;
    border-radius: var(--border-radius);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
}

.contact-form h3 {
    font-size: 1.8rem;
    color: var(--text-color);
    margin-bottom: 30px;
    text-align: center;
}

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

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: #555;
    font-weight: 500;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 1rem;
    font-family: var(--font-family);
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(255, 127, 0, 0.1);
}

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

/* Footer */
.footer {
    background-color: var(--bg-dark);
    color: var(--secondary-color);
    padding: 60px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-section h3 {
    font-size: 1.5rem;
    margin-bottom: 20px;
    color: var(--primary-color);
}

.footer-section p {
    opacity: 0.8;
    line-height: 1.7;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 10px;
}

.footer-section ul li a {
    color: var(--secondary-color);
    text-decoration: none;
    opacity: 0.8;
    transition: var(--transition);
}

.footer-section ul li a:hover,
.footer-section ul li a:focus {
    opacity: 1;
    color: var(--primary-color);
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

.social-links {
    display: flex;
}

.social-links a {
    display: inline-block;
    width: 40px;
    height: 40px;
    background-color: rgba(255, 255, 255, 0.1);
    color: var(--secondary-color);
    text-align: center;
    line-height: 40px;
    border-radius: 50%;
    margin-right: 10px;
    transition: var(--transition);
}

.social-links a:hover,
.social-links a:focus {
    background-color: var(--primary-color);
    transform: translateY(-2px);
    outline: 2px solid var(--secondary-color);
    outline-offset: 2px;
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    opacity: 0.7;
}

/* Company Profile Section */
.company-profile {
    background-color: var(--secondary-color);
    padding: 80px 0;
}

.company-content {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 50px;
    align-items: center;
}

.company-image img {
    width: 100%;
    height: auto;
    border-radius: var(--border-radius);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.company-text h3 {
    color: var(--primary-color);
    font-size: 1.8rem;
    margin-bottom: 20px;
}

.company-text p {
    color: var(--text-color);
    margin-bottom: 20px;
    line-height: 1.8;
}

.company-highlights {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 20px;
    margin-top: 30px;
}

.highlight-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 15px;
    background-color: var(--bg-light);
    border-radius: 8px;
    transition: var(--transition);
}

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

.highlight-item i {
    font-size: 1.8rem;
    color: var(--primary-color);
    margin-bottom: 10px;
}

.highlight-item span {
    color: var(--text-color);
    font-size: 0.9rem;
    font-weight: 500;
}

/* Market Recognition Section */
.market-recognition {
    padding: 80px 0;
    background-color: var(--secondary-color);
}

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

.market-item {
    background-color: var(--bg-light);
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    text-align: center;
    transition: var(--transition);
    border-left: 4px solid var(--primary-color);
}

.market-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.market-item i {
    font-size: 3em;
    color: var(--primary-color);
    margin-bottom: 20px;
}

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

.market-item p {
    color: #666;
    line-height: 1.6;
}

/* Sustainability & Vision Section */
.sustainability {
    padding: 80px 0;
    background-color: var(--bg-gray);
}

.sustainability-content {
    display: grid;
    grid-template-columns: 1fr 400px;
    gap: 40px;
    align-items: center;
}

.sustainability-text h3 {
    color: var(--primary-color);
    margin-bottom: 15px;
    font-size: 1.4em;
}

.sustainability-text p {
    color: #555;
    margin-bottom: 25px;
    line-height: 1.6;
}

.sustainability-stats {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.stat-item {
    background-color: var(--secondary-color);
    padding: 25px;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    text-align: center;
    transition: var(--transition);
}

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

.stat-number {
    font-size: 2.5em;
    font-weight: bold;
    color: var(--primary-color);
    margin-bottom: 10px;
}

.stat-label {
    color: #333;
    font-size: 1em;
}

/* Customer Commitment Section */
.commitment {
    padding: 80px 0;
    background-color: var(--secondary-color);
}

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

.commitment-item {
    background-color: var(--bg-light);
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    transition: var(--transition);
    border-bottom: 4px solid var(--primary-color);
}

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

.commitment-item i {
    font-size: 2.5em;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.commitment-item h3 {
    color: #333;
    margin-bottom: 20px;
    font-size: 1.3em;
}

.commitment-item ul {
    list-style: none;
    padding: 0;
}

.commitment-item ul li {
    margin-bottom: 12px;
    padding-left: 25px;
    position: relative;
    color: #555;
}

.commitment-item ul li:before {
    content: '✓';
    color: var(--primary-color);
    position: absolute;
    left: 0;
    font-weight: bold;
}

/* Looking Ahead Section */
.future {
    padding: 80px 0;
    background-color: var(--primary-color);
    color: var(--secondary-color);
    text-align: center;
}

.future h2 {
    color: var(--secondary-color);
}

.future-content {
    max-width: 800px;
    margin: 0 auto;
}

.future-content p {
    margin-bottom: 20px;
    line-height: 1.6;
    font-size: 1.1em;
}

/* Video Section */
.video-section {
    padding: 80px 0;
    background-color: var(--bg-gray);
}

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

.video-wrapper {
    position: relative;
    padding-bottom: 56.25%;
    height: 0;
    overflow: hidden;
    border-radius: var(--border-radius);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.video-wrapper iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: 0;
}

.video-description h3 {
    color: var(--primary-color);
    margin-bottom: 20px;
    font-size: 1.8rem;
}

.video-description p {
    color: var(--text-color);
    margin-bottom: 20px;
    line-height: 1.8;
}

.video-description ul {
    list-style: none;
    padding: 0;
}

.video-description li {
    color: var(--text-color);
    margin-bottom: 10px;
    padding-left: 25px;
    position: relative;
}

.video-description li::before {
    content: "\f00c";
    font-family: "Font Awesome 5 Free";
    font-weight: 900;
    color: var(--primary-color);
    position: absolute;
    left: 0;
    top: 0;
}

/* Gallery Section */
.gallery {
    background-color: var(--secondary-color);
    padding: 80px 0;
}

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

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

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

.gallery-item img {
    width: 100%;
    height: 250px;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.gallery-item:hover img {
    transform: scale(1.1);
}

.gallery-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.9);
    padding: 20px;
    transform: translateY(100%);
    transition: transform 0.3s ease;
}

.gallery-item:hover .gallery-overlay {
    transform: translateY(0);
}

.gallery-overlay h3 {
    color: var(--primary-color);
    margin-bottom: 10px;
    font-size: 1.3rem;
}

.gallery-overlay p {
    color: var(--text-color);
    font-size: 0.9rem;
    line-height: 1.5;
}

/* Applicable Industries Section */
.industries {
    padding: 100px 0;
    background-color: #ffffff;
}

.industries .container {
    text-align: center;
}

.industries p {
    margin-bottom: 30px;
    color: #666;
    font-size: 1.1rem;
}

.learn-more {
    display: inline-block;
    color: #ff4500;
    text-decoration: none;
    font-weight: 600;
    margin-bottom: 40px;
    transition: color 0.3s ease;
}

.learn-more:hover {
    color: #e63900;
    text-decoration: underline;
}

.industries-list {
    display: flex;
    justify-content: space-between;
    width: 100%;
    margin-top: 40px;
    list-style: none;
    padding: 0;
}

.list-column {
    display: flex;
    flex-direction: column;
}

.col-265 {
    width: 265px;
}
.h-auto {
    height: 670px;
}

.col-304 {
    width: 280px;
}

.industry-link {
    display: block;
    overflow: hidden;
    width: 100%;
    border-radius: 8px;
    margin-bottom: 16px;
    transition: all 0.3s ease;
    cursor: pointer;
}

.industry-link:hover {
    transform: scale(1.02);
}

.industry-link img {
    width: 100%;
    height: auto;
    display: block;
    border-radius: 8px;
    transition: all 0.3s ease;
    object-fit: cover;
}

.industry-link:hover img {
    transform: scale(1.05);
}

@media (max-width: 1200px) {
    .industries-list {
        flex-wrap: wrap;
        gap: 20px;
    }
    
    .list-column {
        flex: 1 1 calc(50% - 10px);
        max-width: calc(50% - 10px);
    }
    
    .col-256,
    .col-304 {
        width: 100%;
    }
}

@media (max-width: 768px) {
    .industries-list {
        flex-direction: column;
        gap: 15px;
    }
    
    .list-column {
        flex: 1 1 100%;
        max-width: 100%;
    }
}

@media (max-width: 480px) {
    .industries-list {
        margin-top: 30px;
    }
    
    .industry-link {
        margin-bottom: 12px;
    }
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

/* Responsive Design */

/* Tablet (768px - 1023px) */
@media (max-width: 1023px) {
    .nav-links li {
        margin-left: 20px;
    }
    
    .hero-content h1 {
        font-size: 2.8rem;
    }
    
    .hero-content p {
        font-size: 1.2rem;
    }
    
    .section-title {
        font-size: 2.2rem;
    }
    
    /* Product Showcase */
    .showcase-content {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    /* Company Profile */
    .company-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    /* Video Section */
    .video-container {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    /* Sustainability Section */
    .sustainability-content {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    /* Industries Section */
    .industries-list {
        flex-wrap: wrap;
        gap: 20px;
    }
    
    .list-column {
        flex: 1 1 calc(50% - 10px);
        max-width: calc(50% - 10px);
    }
    
    /* Core Advantages */
    .product-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
    
    .technology-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
}

/* Mobile (up to 767px) */
@media (max-width: 767px) {
    .nav-links {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        background-color: var(--secondary-color);
        flex-direction: column;
        padding: 20px 0;
        box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
        transition: left 0.3s ease;
        z-index: 999;
    }

    .nav-links.active {
        left: 0;
    }

    .nav-links li {
        margin: 15px 0;
        text-align: center;
    }

    .hamburger {
        display: block;
        color: var(--secondary-color);
    }
    
    .navbar.scrolled .hamburger {
        color: var(--text-color);
    }

    .hero-content h1 {
        font-size: 2.2rem;
    }

    .hero-content p {
        font-size: 1.1rem;
    }

    .section-title {
        font-size: 2rem;
    }

    /* Core Advantages Section - Responsive Styles */
    .product-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .advantage-title {
        font-size: 1.5rem;
    }

    .product-item, .technology-item {
        padding: 20px;
    }

    .product-item i {
        font-size: 2rem;
    }

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

    .company-text h3 {
        font-size: 1.5rem;
    }

    .company-highlights {
        grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
        gap: 15px;
    }

    .video-description h3 {
        font-size: 1.5rem;
    }

    /* Gallery Section Responsive */
    .gallery-grid {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
        gap: 20px;
    }

    .gallery-item img {
        height: 200px;
    }
    
    /* Market Recognition Section Responsive */
    .market-content {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    /* Customer Commitment Section Responsive */
    .commitment-content {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    /* Specifications Section Responsive */
    .specs-table {
        font-size: 0.9em;
    }
    
    .specs-table th,
    .specs-table td {
        padding: 8px 10px;
    }
    
    .specs-title {
        font-size: 1.3em;
    }
    
    /* Sustainability Stats Responsive */
    .stat-number {
        font-size: 2em;
    }
    
    /* Future Section Responsive */
    .future-content p {
        font-size: 1em;
    }
    
    /* Customer Service Responsive */
    .customer-service {
        padding: 15px;
    }
    
    .customer-service img {
        width: 150px;
        height: 150px;
    }
    
    .service-name {
        font-size: 1.1rem;
    }
    
    .contact-info {
        padding-right: 0;
        margin-bottom: 30px;
    }
    
    /* Hero Video Responsive */
    .hero-video {
        height: 80vh;
    }
    
    /* Industries Section */
    .industries-list {
        flex-direction: column;
        gap: 15px;
    }
    
    .list-column {
        flex: 1 1 100%;
        max-width: 100%;
    }
    
    .col-256,
    .col-304 {
        width: 100%;
    }
}

/* Small Mobile (up to 480px) */
@media (max-width: 480px) {
    .hero-content h1 {
        font-size: 1.8rem;
    }

    .hero-content p {
        font-size: 1rem;
    }

    .btn {
        padding: 10px 20px;
        font-size: 0.9rem;
    }

    .section-title {
        font-size: 1.8rem;
    }

    .contact-form {
        padding: 20px;
    }
    
    .logo img {
        height: 60px;
    }
    
    .hero-video {
        height: 70vh;
    }
    
    .product-showcase {
        padding: 20px;
        margin-bottom: 40px;
    }
    
    .showcase-image img {
        height: 250px;
    }
    
    .showcase-features {
        grid-template-columns: 1fr;
        gap: 15px;
    }
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* Focus Styles */
*:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* Remove outline for mouse users but keep for keyboard users */
*:focus:not(:focus-visible) {
    outline: none;
}

/* Scrollbar Styling */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: var(--bg-light);
}

::-webkit-scrollbar-thumb {
    background: var(--primary-color);
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: #e67300;
}