/* Global Styles */
:root {
    --primary-color: #0066cc;
    --primary-dark: #004999;
    --secondary-color: #ff6600;
    --text-color: #333;
    --text-light: #666;
    --bg-light: #f8f9fa;
    --white: #ffffff;
    --border-color: #e0e0e0;
    --shadow: 0 2px 10px rgba(0,0,0,0.1);
    --shadow-hover: 0 5px 25px rgba(0,0,0,0.15);
    --transition: all 0.3s ease;
}

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

body {
    font-family: 'Segoe UI', 'Microsoft YaHei', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--white);
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

ul {
    list-style: none;
}

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

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

/* Navigation */
.navbar {
    background: var(--white);
    box-shadow: var(--shadow);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
}

.logo {
    display: flex;
    align-items: center;
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--primary-color);
}

.logo-icon {
    margin-right: 10px;
    font-size: 1.8rem;
}

.nav-links {
    display: flex;
    gap: 35px;
    align-items: center;
}

.nav-links a {
    color: var(--text-color);
    font-weight: 500;
    padding: 8px 0;
    position: relative;
}

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

.nav-links a:hover::after,
.nav-links a.active::after {
    width: 100%;
}

.nav-links a.active {
    color: var(--primary-color);
}

.btn-nav {
    background: var(--primary-color);
    color: var(--white) !important;
    padding: 10px 25px !important;
    border-radius: 5px;
}

.btn-nav:hover {
    background: var(--primary-dark);
}

.btn-nav::after {
    display: none !important;
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
    color: var(--white);
    padding: 180px 0 120px;
    position: relative;
    overflow: hidden;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle cx="50" cy="50" r="50" fill="rgba(255,255,255,0.02)"/></svg>');
    background-size: 100px 100px;
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.hero-badge {
    display: inline-block;
    background: rgba(255,255,255,0.1);
    padding: 8px 20px;
    border-radius: 30px;
    font-size: 0.9rem;
    margin-bottom: 25px;
    border: 1px solid rgba(255,255,255,0.2);
}

.hero h1 {
    font-size: 3.2rem;
    margin-bottom: 25px;
    line-height: 1.2;
    font-weight: 700;
}

.hero p {
    font-size: 1.25rem;
    margin-bottom: 35px;
    opacity: 0.9;
}

.hero-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 50px;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 15px 35px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 1rem;
    transition: var(--transition);
    cursor: pointer;
    border: none;
}

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

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(0,102,204,0.3);
}

.btn-secondary {
    background: transparent;
    color: var(--white);
    border: 2px solid rgba(255,255,255,0.5);
}

.btn-secondary:hover {
    background: var(--white);
    color: var(--primary-color);
    border-color: var(--white);
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 60px;
    margin-top: 40px;
}

.stat {
    text-align: center;
}

.stat-value {
    display: block;
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--secondary-color);
}

.stat-label {
    font-size: 0.9rem;
    opacity: 0.8;
}

/* Trust Badges */
.trust-badges {
    background: var(--bg-light);
    padding: 30px 0;
}

.badges-grid {
    display: flex;
    justify-content: center;
    gap: 50px;
    flex-wrap: wrap;
}

.badge {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 500;
    color: var(--text-light);
}

.badge-icon {
    font-size: 1.3rem;
}

/* Section Styles */
.section-header {
    text-align: center;
    margin-bottom: 50px;
}

.section-subtitle {
    display: inline-block;
    color: var(--primary-color);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 2px;
    font-size: 0.9rem;
    margin-bottom: 10px;
}

.section-header h2 {
    font-size: 2.2rem;
    margin-bottom: 15px;
    color: var(--text-color);
}

.section-header p {
    color: var(--text-light);
    max-width: 600px;
    margin: 0 auto;
}

/* Products Section */
.products-section {
    padding: 100px 0;
    background: var(--white);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: 30px;
}

.product-card {
    background: var(--white);
    border-radius: 12px;
    padding: 35px;
    border: 1px solid var(--border-color);
    transition: var(--transition);
    display: block;
}

.product-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-hover);
    border-color: var(--primary-color);
}

.product-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}

.product-icon svg {
    width: 40px;
    height: 40px;
    stroke: var(--white);
}

.product-card h3 {
    font-size: 1.3rem;
    margin-bottom: 12px;
    color: var(--text-color);
}

.product-card > p {
    color: var(--text-light);
    margin-bottom: 20px;
    font-size: 0.95rem;
}

.product-features {
    margin-bottom: 20px;
}

.product-features li {
    padding: 5px 0;
    color: var(--text-light);
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 8px;
}

.product-features li::before {
    content: '✓';
    color: var(--primary-color);
    font-weight: bold;
}

.product-link {
    color: var(--primary-color);
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 5px;
}

.product-link:hover {
    gap: 10px;
}

/* Why Choose Us */
.why-choose-us {
    padding: 100px 0;
    background: var(--bg-light);
}

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

.feature {
    background: var(--white);
    padding: 35px;
    border-radius: 12px;
    text-align: center;
    transition: var(--transition);
}

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

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: 20px;
}

.feature h3 {
    margin-bottom: 15px;
    font-size: 1.2rem;
}

.feature p {
    color: var(--text-light);
    font-size: 0.95rem;
}

/* Export Markets */
.export-markets {
    padding: 80px 0;
    background: var(--white);
}

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

.market-region {
    background: var(--bg-light);
    padding: 30px;
    border-radius: 12px;
    border-left: 4px solid var(--primary-color);
}

.market-region h4 {
    color: var(--primary-color);
    margin-bottom: 10px;
    font-size: 1.1rem;
}

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

/* CTA Section */
.cta-section {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    padding: 80px 0;
    color: var(--white);
}

.cta-content {
    text-align: center;
}

.cta-content h2 {
    font-size: 2rem;
    margin-bottom: 15px;
}

.cta-content p {
    opacity: 0.9;
    margin-bottom: 30px;
}

.cta-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
}

.cta-buttons .btn-secondary {
    background: var(--white);
    color: var(--primary-color);
    border-color: var(--white);
}

.cta-buttons .btn-secondary:hover {
    background: transparent;
    color: var(--white);
}

/* Footer */
.footer {
    background: #1a1a2e;
    color: var(--white);
    padding: 60px 0 20px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr repeat(3, 1fr);
    gap: 40px;
    margin-bottom: 40px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.3rem;
    font-weight: bold;
    color: var(--white);
    margin-bottom: 15px;
}

.footer-col p {
    opacity: 0.7;
    margin-bottom: 20px;
    line-height: 1.8;
}

.footer-social {
    display: flex;
    gap: 15px;
}

.footer-social a {
    width: 40px;
    height: 40px;
    background: rgba(255,255,255,0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    transition: var(--transition);
}

.footer-social a:hover {
    background: var(--primary-color);
    transform: translateY(-3px);
}

.footer-col h4 {
    margin-bottom: 20px;
    font-size: 1.1rem;
}

.footer-col ul li {
    margin-bottom: 12px;
}

.footer-col ul li a {
    opacity: 0.7;
}

.footer-col ul li a:hover {
    opacity: 1;
    color: var(--primary-color);
}

.contact-list li {
    padding: 5px 0;
    font-size: 0.9rem;
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255,255,255,0.1);
    opacity: 0.6;
    font-size: 0.9rem;
}

/* Page Header */
.page-header {
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    color: var(--white);
    padding: 150px 0 60px;
    text-align: center;
}

.page-header h1 {
    font-size: 2.5rem;
    margin-bottom: 10px;
}

.page-header p {
    opacity: 0.8;
}

/* Product Detail Styles */
.product-category {
    margin-bottom: 60px;
}

.product-category h2 {
    font-size: 1.8rem;
    margin-bottom: 30px;
    padding-bottom: 15px;
    border-bottom: 3px solid var(--primary-color);
    display: inline-block;
}

.product-list {
    display: grid;
    gap: 25px;
}

.product-item {
    background: var(--bg-light);
    padding: 30px;
    border-radius: 12px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 30px;
    transition: var(--transition);
}

.product-item:hover {
    background: var(--white);
    box-shadow: var(--shadow-hover);
}

.product-info h3 {
    color: var(--text-color);
    margin-bottom: 10px;
}

.product-info > p {
    color: var(--text-light);
    margin-bottom: 15px;
}

.product-info ul {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 8px;
}

.product-info ul li {
    color: var(--text-light);
    font-size: 0.9rem;
}

/* Form Styles */
.contact-form input,
.contact-form select,
.contact-form textarea {
    width: 100%;
    padding: 14px 18px;
    margin-bottom: 15px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
    font-family: inherit;
    transition: var(--transition);
}

.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0,102,204,0.1);
}

.contact-form textarea {
    height: 150px;
    resize: vertical;
}

/* About Page Styles */
.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
}

.about-text h2 {
    margin-bottom: 20px;
    color: #333;
}

.about-text p {
    margin-bottom: 15px;
    color: #666;
}

.about-image {
    background: linear-gradient(135deg, #0066cc, #004999);
    border-radius: 10px;
    padding: 60px;
    text-align: center;
    color: #fff;
    font-size: 1.2rem;
    min-height: 300px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.certifications {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    margin-top: 30px;
}

.cert-item {
    background: #f8f9fa;
    padding: 15px 25px;
    border-radius: 5px;
    text-align: center;
    border: 1px solid #ddd;
}

.cert-item strong {
    display: block;
    color: #0066cc;
    margin-bottom: 5px;
}

.timeline {
    margin: 50px 0;
}

.timeline-item {
    display: flex;
    margin-bottom: 30px;
    align-items: flex-start;
}

.timeline-year {
    min-width: 100px;
    font-weight: bold;
    color: #0066cc;
}

.timeline-content {
    flex: 1;
    padding-left: 20px;
    border-left: 3px solid #0066cc;
}

/* Contact Page Styles */
.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
}

.contact-info {
    background: #f8f9fa;
    padding: 40px;
    border-radius: 10px;
}

.contact-info h3 {
    margin-bottom: 30px;
    color: #333;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    margin-bottom: 25px;
}

.contact-icon {
    font-size: 1.5rem;
    margin-right: 15px;
    min-width: 40px;
}

.contact-text h4 {
    margin-bottom: 5px;
    color: #333;
}

.contact-text p {
    color: #666;
}

.business-hours {
    background: #0066cc;
    color: #fff;
    padding: 30px;
    border-radius: 10px;
    margin-top: 30px;
}

.business-hours h4 {
    margin-bottom: 15px;
}

.business-hours p {
    opacity: 0.9;
    margin-bottom: 5px;
}

.map-placeholder {
    background: #e9ecef;
    height: 200px;
    border-radius: 5px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #666;
    margin-top: 30px;
}

/* Responsive */
@media (max-width: 992px) {
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
    
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .about-content {
        grid-template-columns: 1fr;
    }
    
    .contact-wrapper {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: var(--white);
        flex-direction: column;
        padding: 20px;
        box-shadow: var(--shadow);
    }
    
    .nav-links.active {
        display: flex;
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    .hero h1 {
        font-size: 2rem;
    }
    
    .hero-buttons {
        flex-direction: column;
    }
    
    .hero-stats {
        flex-wrap: wrap;
        gap: 30px;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
    }
    
    .product-item {
        flex-direction: column;
        text-align: center;
    }
    
    .product-info ul {
        grid-template-columns: 1fr;
    }
    
    .cta-buttons {
        flex-direction: column;
    }
    
    .timeline-item {
        flex-direction: column;
    }
    
    .timeline-content {
        padding-left: 0;
        padding-top: 15px;
    }
}