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

body {
    font-family: 'Microsoft YaHei', 'PingFang SC', sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f5f5f5;
}

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

header {
    background-color: #fff;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 100;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 0;
}

.logo {
    display: flex;
    align-items: center;
}

.logo img {
    height: 40px;
    width: auto;
}

.nav-links .active {
    color: #3498db;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 30px;
}

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

.nav-links a:hover {
    color: #3498db;
}

.header-right {
    display: flex;
    align-items: center;
    gap: 20px;
}

.lang-switch {
    font-size: 14px;
    color: #666;
}

.download-btn {
    background-color: #3498db;
    color: #fff;
    padding: 8px 20px;
    border-radius: 4px;
    text-decoration: none;
    font-size: 14px;
    transition: background-color 0.3s;
}

.download-btn:hover {
    background-color: #2980b9;
}

.banner {
    position: relative;
    overflow: hidden;
    height: 500px;
}

.banner-wrapper {
    display: flex;
    transition: transform 0.5s ease-in-out;
    height: 100%;
}

.banner-slide {
    flex-shrink: 0;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    text-align: center;
}

.banner-slide:nth-child(1) {
    background: linear-gradient(135deg, #2c3e50 0%, #34495e 100%);
}

.banner-slide:nth-child(2) {
    background: linear-gradient(135deg, #2980b9 0%, #3498db 100%);
}

.banner-slide:nth-child(3) {
    background: linear-gradient(135deg, #16a085 0%, #1abc9c 100%);
}

.banner-content {
    max-width: 800px;
}

.banner-content h1 {
    font-size: 42px;
    margin-bottom: 20px;
    font-weight: 700;
}

.banner-content p {
    font-size: 20px;
    margin-bottom: 35px;
    opacity: 0.95;
}

.banner-btn {
    display: inline-block;
    background-color: #fff;
    color: #2c3e50;
    padding: 14px 35px;
    border-radius: 4px;
    text-decoration: none;
    font-size: 16px;
    font-weight: 600;
    transition: all 0.3s;
}

.banner-btn:hover {
    background-color: #f1c40f;
    color: #2c3e50;
}

.banner-indicators {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 15px;
    z-index: 10;
}

.banner-indicators span {
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.4);
    cursor: pointer;
    transition: all 0.3s;
    border: 2px solid rgba(255, 255, 255, 0.3);
}

.banner-indicators span:hover {
    background-color: rgba(255, 255, 255, 0.7);
}

.banner-indicators span.active {
    background-color: #fff;
    border-color: #fff;
    transform: scale(1.2);
}

.banner-arrows {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 100%;
    display: flex;
    justify-content: space-between;
    padding: 0 30px;
    z-index: 10;
}

.banner-arrows button {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    border: none;
    background-color: rgba(255, 255, 255, 0.2);
    color: #fff;
    font-size: 28px;
    cursor: pointer;
    transition: all 0.3s;
    display: flex;
    align-items: center;
    justify-content: center;
}

.banner-arrows button:hover {
    background-color: rgba(255, 255, 255, 0.4);
}

.about-section {
    background-color: #fff;
    padding: 80px 0;
}

.about-header {
    text-align: center;
    margin-bottom: 50px;
}

.about-header h2 {
    font-size: 32px;
    margin-bottom: 10px;
    color: #2c3e50;
}

.section-desc {
    font-size: 16px;
    color: #3498db;
    font-weight: 500;
}

.stats-row {
    display: flex;
    justify-content: space-around;
    margin-bottom: 50px;
    flex-wrap: wrap;
    gap: 30px;
}

.stat-item {
    text-align: center;
    min-width: 120px;
}

.stat-value {
    font-size: 36px;
    font-weight: bold;
    color: #3498db;
}

.stat-label {
    font-size: 14px;
    color: #666;
    margin-top: 8px;
}

.about-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
    margin-bottom: 40px;
    padding: 40px;
    background-color: #f8f9fa;
    border-radius: 8px;
}

.about-content h3 {
    font-size: 22px;
    margin-bottom: 15px;
    color: #2c3e50;
}

.about-content p {
    font-size: 16px;
    color: #666;
    line-height: 1.8;
}

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

.section-btn {
    display: inline-block;
    border: 2px solid #3498db;
    color: #3498db;
    padding: 12px 30px;
    border-radius: 4px;
    text-decoration: none;
    font-size: 15px;
    font-weight: 500;
    transition: all 0.3s;
}

.section-btn:hover {
    background-color: #3498db;
    color: #fff;
}

.applications-section {
    background-color: #f8f9fa;
    padding: 80px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 50px;
}

.section-header h2 {
    font-size: 32px;
    margin-bottom: 15px;
    color: #2c3e50;
}

.section-header p {
    font-size: 16px;
    color: #666;
    max-width: 600px;
    margin: 0 auto;
}

.app-cards {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.app-card {
    background-color: #fff;
    padding: 35px;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
    text-align: center;
    transition: transform 0.3s, box-shadow 0.3s;
}

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

.app-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, #3498db 0%, #2980b9 100%);
    border-radius: 12px;
    margin: 0 auto 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    color: #fff;
    font-weight: bold;
    letter-spacing: 1px;
}

.app-card h3 {
    font-size: 18px;
    margin-bottom: 12px;
    color: #2c3e50;
}

.app-card p {
    font-size: 14px;
    color: #666;
    margin-bottom: 20px;
    line-height: 1.6;
}

.app-card a {
    font-size: 14px;
    color: #3498db;
    text-decoration: none;
    font-weight: 500;
}

.app-card a:hover {
    text-decoration: underline;
}

.section-cta {
    text-align: center;
    margin-top: 40px;
}

.products-section {
    background-color: #fff;
    padding: 80px 0;
}

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

.product-card {
    background-color: #f8f9fa;
    padding: 30px;
    border-radius: 8px;
    text-align: center;
    transition: all 0.3s;
    border: 1px solid #e0e0e0;
}

.product-card:hover {
    background-color: #fff;
    border-color: #3498db;
    box-shadow: 0 4px 15px rgba(52, 152, 219, 0.15);
}

.product-icon {
    width: 50px;
    height: 50px;
    background-color: #e8f4fd;
    border-radius: 8px;
    margin: 0 auto 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 10px;
    color: #3498db;
    font-weight: bold;
}

.product-card h3 {
    font-size: 16px;
    margin-bottom: 10px;
    color: #2c3e50;
}

.product-card p {
    font-size: 14px;
    color: #666;
    margin-bottom: 18px;
}

.product-card a {
    font-size: 14px;
    color: #3498db;
    text-decoration: none;
    font-weight: 500;
}

.news-section {
    background-color: #f8f9fa;
    padding: 80px 0;
}

.news-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    grid-auto-rows: 1fr;
    gap: 30px;
    align-items: stretch;
}

.news-main {
    background-color: #fff;
    padding: 35px;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
}

.news-image {
    width: 100%;
    height: 220px;
    background: linear-gradient(135deg, #3498db 0%, #2980b9 100%);
    border-radius: 6px;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 14px;
    font-weight: 500;
}

.news-main h3 {
    font-size: 22px;
    margin-bottom: 12px;
    color: #2c3e50;
}

.news-main p {
    font-size: 14px;
    color: #666;
    margin-bottom: 20px;
    line-height: 1.7;
}

.news-main a {
    font-size: 14px;
    color: #3498db;
    text-decoration: none;
    font-weight: 500;
}

.news-list {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.news-item {
    background-color: #fff;
    padding: 22px;
    border-radius: 8px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
    transition: all 0.3s;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.news-item:hover {
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    transform: translateX(5px);
}

.news-item h4 {
    font-size: 15px;
    margin-bottom: 5px;
    color: #2c3e50;
}

.news-item span {
    font-size: 12px;
    color: #999;
}

.news-item a {
    font-size: 13px;
    color: #3498db;
    text-decoration: none;
}

.contact-section {
    background-color: #fff;
    padding: 80px 0;
    margin-top: 40px;
    border-top: 1px solid #e8e8e8;
}

.contact-section .contact-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: flex-start;
}

.contact-left {
    padding: 40px 0;
}

.contact-left h2 {
    font-size: 28px;
    color: #2c3e50;
    margin-bottom: 10px;
    font-weight: 600;
}

.contact-left .contact-subtitle {
    font-size: 28px;
    color: #3498db;
    margin-bottom: 30px;
    font-weight: 600;
}

.contact-left .contact-info {
    font-size: 15px;
    color: #666;
    line-height: 2;
}

.contact-left .contact-info span {
    display: block;
}

.contact-form {
    background-color: #f8f9fa;
    padding: 50px;
    border-radius: 10px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

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

.form-group label {
    display: block;
    font-size: 14px;
    margin-bottom: 8px;
    color: #333;
    font-weight: 500;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 14px;
    border: 1px solid #ddd;
    border-radius: 6px;
    font-size: 14px;
    font-family: inherit;
    transition: border-color 0.3s;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #3498db;
}

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

.submit-btn {
    width: 100%;
    background-color: #3498db;
    color: #fff;
    padding: 14px;
    border: none;
    border-radius: 6px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.3s;
}

.submit-btn:hover {
    background-color: #2980b9;
}

footer {
    background-color: #2c3e50;
    color: #fff;
    padding: 60px 0;
}

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

.footer-section h4 {
    font-size: 16px;
    margin-bottom: 20px;
    color: #3498db;
}

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

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

.footer-section ul li a {
    color: #999;
    text-decoration: none;
    font-size: 14px;
    transition: color 0.3s;
}

.footer-section ul li a:hover {
    color: #fff;
}

.footer-contact p {
    font-size: 14px;
    color: #999;
    margin-bottom: 10px;
}

.social-links {
    display: flex;
    gap: 20px;
    margin-top: 15px;
}

.social-links span {
    font-size: 13px;
    color: #999;
    padding: 6px 15px;
    background-color: #34495e;
    border-radius: 4px;
}

.footer-bottom {
    border-top: 1px solid #34495e;
    padding-top: 25px;
    text-align: center;
}

.footer-bottom p {
    font-size: 13px;
    color: #666;
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }

    .banner {
        height: 400px;
    }

    .banner-content h1 {
        font-size: 28px;
    }

    .banner-content p {
        font-size: 16px;
    }

    .banner-arrows {
        display: none;
    }

    .stats-row {
        flex-direction: column;
        align-items: center;
    }

    .stat-item {
        min-width: 100px;
    }

    .news-content {
        grid-template-columns: 1fr;
    }
    
    .app-cards {
        grid-template-columns: 1fr;
    }

    .news-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .social-links {
        justify-content: center;
    }
}

/* ????????? */
.solution-hero {
    background: linear-gradient(135deg, #3498db 0%, #2980b9 100%);
    color: #fff;
    padding: 120px 0 80px;
    text-align: center;
}

.hero-content h1 {
    font-size: 48px;
    margin-bottom: 20px;
    color: #fff;
}

.hero-subtitle {
    font-size: 24px;
    margin-bottom: 15px;
    color: #fff;
    font-weight: 300;
}

.hero-description {
    font-size: 16px;
    max-width: 800px;
    margin: 0 auto;
    color: #fff;
    line-height: 1.8;
    opacity: 0.9;
}

.solution-section {
    padding: 80px 0;
    background-color: #fff;
}

.solution-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-top: 50px;
}

.solution-card {
    background-color: #fff;
    padding: 35px;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
    text-align: center;
    transition: transform 0.3s, box-shadow 0.3s;
    border: 1px solid #e8e8e8;
}

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

.solution-icon {
    width: 80px;
    height: 80px;
    background-color: #3498db;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 18px;
    font-weight: bold;
    color: #fff;
    text-transform: uppercase;
}

.solution-card h3 {
    font-size: 18px;
    margin-bottom: 15px;
    color: #2c3e50;
}

.solution-card p {
    font-size: 14px;
    color: #666;
    margin-bottom: 20px;
    line-height: 1.6;
}

.solution-link {
    font-size: 14px;
    color: #3498db;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s;
}

.solution-link:hover {
    color: #2980b9;
}

.solution-detail {
    padding: 80px 0;
    background-color: #f8f9fa;
}

.solution-detail:nth-child(even) {
    background-color: #fff;
}

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

.detail-image {
    order: 1;
}

.detail-info {
    order: 2;
}

.solution-detail:nth-child(even) .detail-image {
    order: 2;
}

.solution-detail:nth-child(even) .detail-info {
    order: 1;
}

.placeholder-image {
    width: 100%;
    height: 300px;
    background: linear-gradient(135deg, #3498db 0%, #2980b9 100%);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 18px;
    font-weight: 500;
}

.detail-info h2 {
    font-size: 32px;
    margin-bottom: 20px;
    color: #2c3e50;
}

.detail-description {
    font-size: 16px;
    color: #666;
    margin-bottom: 30px;
    line-height: 1.8;
}

.product-features {
    margin-bottom: 30px;
}

.product-features h3 {
    font-size: 18px;
    margin-bottom: 15px;
    color: #2c3e50;
}

.product-features ul {
    list-style: none;
    padding: 0;
}

.product-features li {
    font-size: 14px;
    color: #666;
    margin-bottom: 10px;
    padding-left: 25px;
    position: relative;
    line-height: 1.6;
}

.product-features li:before {
    content: "?";
    position: absolute;
    left: 0;
    color: #3498db;
    font-weight: bold;
}

.recommended-products h3 {
    font-size: 18px;
    margin-bottom: 10px;
    color: #2c3e50;
}

.recommended-products p {
    font-size: 14px;
    color: #3498db;
    font-weight: 500;
}

/* ????????????? */
@media (max-width: 1024px) {
    .solution-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .detail-content {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .detail-image,
    .detail-info {
        order: 1 !important;
    }
}

@media (max-width: 768px) {
    .hero-content h1 {
        font-size: 32px;
    }
    
    .hero-subtitle {
        font-size: 20px;
    }
    
    .hero-description {
        font-size: 14px;
    }
    
    .solution-grid {
        grid-template-columns: 1fr;
    }
    
    .solution-hero {
        padding: 80px 0 60px;
    }
    
    .solution-section,
    .solution-detail {
        padding: 60px 0;
    }
    
    .detail-info h2 {
        font-size: 24px;
    }
    
    .placeholder-image {
        height: 200px;
    }
}
.detail-hero {
    background-color: #3498db;
    color: #fff;
    padding: 80px 0;
    text-align: center;
}

.detail-hero h1 {
    font-size: 42px;
    margin-bottom: 15px;
}

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

.detail-hero .hero-description {
    font-size: 15px;
    max-width: 700px;
    margin: 0 auto;
    line-height: 1.8;
    opacity: 0.85;
}

.detail-overview {
    background-color: #fff;
    padding: 60px 0;
}

.detail-overview h2 {
    font-size: 28px;
    color: #2c3e50;
    margin-bottom: 25px;
    text-align: center;
}

.detail-overview p {
    font-size: 16px;
    line-height: 1.9;
    color: #555;
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
}

.detail-features {
    background-color: #f8f9fa;
    padding: 60px 0;
    border-top: 1px solid #e8e8e8;
}

.detail-features .section-header {
    text-align: center;
    margin-bottom: 50px;
}

.detail-features .section-header h2 {
    font-size: 28px;
    color: #2c3e50;
    margin-bottom: 15px;
}

.features-list {
    max-width: 800px;
    margin: 0 auto;
}

.feature-item {
    margin-bottom: 30px;
    padding-bottom: 30px;
    border-bottom: 1px solid #e8e8e8;
}

.feature-item:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.feature-item h3 {
    font-size: 18px;
    color: #2c3e50;
    margin-bottom: 12px;
}

.feature-item p {
    font-size: 15px;
    color: #666;
    line-height: 1.8;
}

.detail-products {
    background-color: #fff;
    padding: 60px 0;
}

.detail-products .section-header {
    text-align: center;
    margin-bottom: 50px;
}

.detail-products .section-header h2 {
    font-size: 28px;
    color: #2c3e50;
    margin-bottom: 15px;
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 25px;
}

.product-card {
    background-color: #f8f9fa;
    padding: 30px;
    border-radius: 10px;
    border: 1px solid #e8e8e8;
    min-height: 180px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.product-card h3 {
    font-size: 17px;
    color: #2c3e50;
    margin-bottom: 12px;
}

.product-models {
    font-size: 13px;
    color: #3498db;
    margin-bottom: 10px;
    font-weight: 500;
}

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

.product-link {
    font-size: 13px;
    color: #3498db;
    text-decoration: none;
    display: inline-block;
    margin-top: 15px;
}

.product-link:hover {
    text-decoration: underline;
}

.detail-news {
    background-color: #f8f9fa;
    padding: 60px 0;
    border-top: 1px solid #e8e8e8;
}

.detail-news .section-header {
    text-align: center;
    margin-bottom: 50px;
}

.detail-news .news-grid {
    display: grid !important;
    grid-template-columns: repeat(3, 1fr) !important;
    gap: 25px !important;
}

.related-news .news-grid {
    display: grid !important;
    grid-template-columns: repeat(3, 1fr) !important;
    gap: 25px !important;
}

.cta-section .news-grid {
    display: grid !important;
    grid-template-columns: repeat(3, 1fr) !important;
    gap: 25px !important;
}

.contact-intro {
    padding: 40px 0;
    background-color: #fff;
    text-align: center;
}

.contact-intro h3 {
    font-size: 20px;
    color: #2c3e50;
    margin-bottom: 15px;
    font-weight: 600;
}

.contact-intro p {
    font-size: 15px;
    color: #666;
    line-height: 1.8;
    max-width: 800px;
    margin: 0 auto;
}

.about-intro {
    padding: 60px 0;
    background-color: #f8f9fa;
    text-align: center;
}

.about-intro h3 {
    font-size: 24px;
    color: #2c3e50;
    margin-bottom: 20px;
    font-weight: 600;
}

.about-intro p {
    font-size: 15px;
    color: #666;
    line-height: 1.8;
    max-width: 800px;
    margin: 0 auto;
}

.rnd-intro {
    padding: 60px 0;
    background-color: #f8f9fa;
    text-align: center;
}

.rnd-intro .intro-content h3 {
    font-size: 24px;
    color: #2c3e50;
    margin-bottom: 20px;
    font-weight: 600;
}

.rnd-intro .intro-content p {
    font-size: 15px;
    color: #666;
    line-height: 1.8;
    max-width: 800px;
    margin: 0 auto 40px;
}

.rnd-intro .stats-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    padding-top: 30px;
    border-top: 1px solid #e0e0e0;
}

.rnd-intro .stat-item {
    text-align: center;
}

.rnd-intro .stat-value {
    font-size: 36px;
    font-weight: 700;
    color: #3498db;
    margin-bottom: 10px;
}

.rnd-intro .stat-label {
    font-size: 14px;
    color: #666;
}

.detail-news .section-header h2 {
    font-size: 28px;
    color: #2c3e50;
    margin-bottom: 15px;
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 25px;
}

.news-card {
    background-color: #fff;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    transition: all 0.3s;
}

.news-card:hover {
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.1);
}

.news-image {
    height: 150px;
    background-color: #3498db;
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    font-weight: bold;
}

.news-card h3 {
    font-size: 16px;
    color: #2c3e50;
    padding: 20px 20px 10px;
}

.news-date {
    font-size: 12px;
    color: #999;
    padding: 0 20px 10px;
}

.news-desc {
    font-size: 14px;
    color: #666;
    padding: 0 20px 15px;
    line-height: 1.6;
}

.news-link {
    font-size: 13px;
    color: #3498db;
    text-decoration: none;
    padding: 0 20px 20px;
    display: inline-block;
}

.news-link:hover {
    text-decoration: underline;
}

@media (max-width: 768px) {
    .detail-hero h1 {
        font-size: 28px;
    }
    
    .products-grid {
        grid-template-columns: 1fr;
    }
    
    .news-grid {
        grid-template-columns: 1fr;
    }
}
.product-hero {
    background-color: #3498db;
    color: #fff;
    padding: 80px 0;
    text-align: center;
}

.product-hero h1 {
    font-size: 42px;
    margin-bottom: 15px;
}

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

.product-hero .hero-description {
    font-size: 15px;
    max-width: 700px;
    margin: 0 auto;
    line-height: 1.8;
    opacity: 0.85;
}

.product-section {
    background-color: #fff;
    padding: 60px 0;
}

.product-section .section-header {
    text-align: center;
    margin-bottom: 50px;
}

.product-section .section-header h2 {
    font-size: 28px;
    color: #2c3e50;
    margin-bottom: 15px;
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 25px;
}

.product-card {
    background-color: #f8f9fa;
    padding: 30px;
    border-radius: 10px;
    border: 1px solid #e8e8e8;
    text-align: center;
    transition: all 0.3s;
}

.product-card:hover {
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.1);
    transform: translateY(-5px);
}

.product-icon {
    width: 70px;
    height: 70px;
    background-color: #3498db;
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 12px;
    font-weight: bold;
}

.product-card h3 {
    font-size: 17px;
    color: #2c3e50;
    margin-bottom: 15px;
}

.product-card p {
    font-size: 14px;
    color: #666;
    line-height: 1.6;
    margin-bottom: 20px;
}

.product-link {
    font-size: 13px;
    color: #3498db;
    text-decoration: none;
}

.product-link:hover {
    text-decoration: underline;
}

.custom-solution {
    background-color: #f8f9fa;
    padding: 60px 0;
    border-top: 1px solid #e8e8e8;
}

.custom-solution h2 {
    font-size: 28px;
    color: #2c3e50;
    margin-bottom: 20px;
    text-align: center;
}

.custom-solution p {
    font-size: 16px;
    color: #666;
    line-height: 1.8;
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
}

.custom-specs {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-top: 40px;
}

.spec-item {
    background-color: #fff;
    padding: 20px;
    border-radius: 8px;
    border: 1px solid #e8e8e8;
    text-align: center;
}

.spec-label {
    display: block;
    font-size: 14px;
    color: #999;
    margin-bottom: 8px;
}

.spec-value {
    font-size: 15px;
    color: #2c3e50;
    font-weight: 500;
}

@media (max-width: 768px) {
    .product-hero h1 {
        font-size: 28px;
    }
    
    .product-grid {
        grid-template-columns: 1fr;
    }
    
    .custom-specs {
        grid-template-columns: 1fr;
    }
}
.product-detail-hero {
    background-color: #2980b9;
    color: #fff;
    padding: 80px 0;
    text-align: center;
}

.product-detail-hero h1 {
    font-size: 42px;
    margin-bottom: 15px;
}

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

.product-detail-hero .hero-description {
    font-size: 15px;
    max-width: 700px;
    margin: 0 auto;
    line-height: 1.8;
    opacity: 0.85;
}

.product-overview {
    background-color: #f8f9fa;
    padding: 60px 0;
}

.product-overview h2 {
    font-size: 28px;
    color: #2c3e50;
    margin-bottom: 20px;
}

.product-overview p {
    font-size: 16px;
    color: #666;
    line-height: 1.8;
    margin-bottom: 15px;
    max-width: 900px;
}

.tech-params {
    background-color: #fff;
    padding: 60px 0;
}

.tech-params .section-header {
    text-align: center;
    margin-bottom: 40px;
}

.tech-params .section-header h2 {
    font-size: 28px;
    color: #2c3e50;
}

.params-table {
    width: 100%;
    max-width: 900px;
    margin: 0 auto;
    border-collapse: collapse;
    background-color: #fff;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    border-radius: 10px;
    overflow: hidden;
}

.params-table th, .params-table td {
    padding: 15px 20px;
    text-align: left;
    border-bottom: 1px solid #e8e8e8;
}

.params-table th {
    background-color: #2c3e50;
    color: #fff;
    font-weight: 500;
}

.params-table tbody tr:nth-child(even) {
    background-color: #f8f9fa;
}

.tech-features {
    background-color: #f8f9fa;
    padding: 60px 0;
}

.tech-features .section-header {
    text-align: center;
    margin-bottom: 40px;
}

.tech-features .section-header h2 {
    font-size: 28px;
    color: #2c3e50;
}

.tech-features-wrapper {
    display: flex;
    align-items: center;
    gap: 40px;
}

.features-list {
    flex: 1;
}

.features-image {
    flex: 1;
}

.image-placeholder {
    width: 100%;
    height: 300px;
    background-color: #e8e8e8;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #999;
    font-size: 16px;
    border-radius: 5px;
}

.feature-item {
    padding: 20px 0;
    border-bottom: 1px solid #e8e8e8;
}

.feature-item:last-child {
    border-bottom: none;
}

.feature-item h3 {
    font-size: 17px;
    color: #2c3e50;
    font-weight: 500;
}

@media (max-width: 768px) {
    .tech-features-wrapper {
        flex-direction: column;
    }
}

.product-models {
    background-color: #f8f9fa;
    padding: 60px 0;
}

.product-models .section-header {
    text-align: center;
    margin-bottom: 40px;
}

.product-models .section-header h2 {
    font-size: 28px;
    color: #2c3e50;
}

.models-table {
    width: 100%;
    border-collapse: collapse;
    background-color: #fff;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

.table-wrapper {
    overflow-x: auto;
}

.models-table th,
.models-table td {
    padding: 12px 15px;
    text-align: left;
    border-bottom: 1px solid #e8e8e8;
    border-right: 1px solid #e8e8e8;
    font-size: 14px;
    color: #2c3e50;
    white-space: nowrap;
}

.models-table th:last-child,
.models-table td:last-child {
    border-right: none;
}

.models-table th {
    background-color: #2980b9;
    color: #fff;
    font-weight: 500;
}

.models-table .category-row td {
    background-color: #a4c639;
    color: #fff;
    font-weight: 500;
}

.models-table tbody tr:nth-child(even):not(.category-row) {
    background-color: #f8f9fa;
}

.models-table tbody tr:hover:not(.category-row) {
    background-color: #eaf3fb;
}

.models-table tbody tr:last-child td {
    border-bottom: none;
}

.model-card {
    background-color: #fff;
    padding: 30px;
    border-radius: 10px;
    border: 1px solid #e8e8e8;
}

.model-card h3 {
    font-size: 20px;
    color: #2c3e50;
    margin-bottom: 15px;
}

.model-spec {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 15px;
}

.model-spec span {
    font-size: 14px;
    color: #666;
}

.model-card p {
    font-size: 14px;
    color: #666;
    line-height: 1.6;
    margin-bottom: 20px;
}

.model-link {
    font-size: 13px;
    color: #3498db;
    text-decoration: none;
}

.model-link:hover {
    text-decoration: underline;
}

.applications {
    background-color: #fff;
    padding: 60px 0;
}

.applications .section-header {
    text-align: center;
    margin-bottom: 40px;
}

.applications .section-header h2 {
    font-size: 28px;
    color: #2c3e50;
}

.apps-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 25px;
}

.app-item {
    text-align: center;
    padding: 30px;
    background-color: #f8f9fa;
    border-radius: 10px;
}

.app-icon {
    width: 60px;
    height: 60px;
    background-color: #3498db;
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 15px;
    font-size: 11px;
    font-weight: bold;
}

.app-item h3 {
    font-size: 16px;
    color: #2c3e50;
    margin-bottom: 10px;
}

.app-item p {
    font-size: 13px;
    color: #666;
    line-height: 1.5;
}

.related-news {
    background-color: #f8f9fa;
    padding: 60px 0;
    border-top: 1px solid #e8e8e8;
}

.related-news .section-header {
    text-align: center;
    margin-bottom: 40px;
}

.related-news .section-header h2 {
    font-size: 28px;
    color: #2c3e50;
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 25px;
}

.news-card {
    background-color: #fff;
    padding: 25px;
    border-radius: 10px;
    border: 1px solid #e8e8e8;
}

.news-image {
    width: 100%;
    height: 120px;
    background-color: #3498db;
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 15px;
    font-size: 18px;
    font-weight: bold;
    border-radius: 5px;
}

.news-card h3 {
    font-size: 16px;
    color: #2c3e50;
    margin-bottom: 8px;
}

.news-date {
    font-size: 12px;
    color: #999;
    margin-bottom: 10px;
}

.news-card p {
    font-size: 14px;
    color: #666;
    line-height: 1.6;
    margin-bottom: 15px;
}

.news-link {
    font-size: 13px;
    color: #3498db;
    text-decoration: none;
}

.news-link:hover {
    text-decoration: underline;
}

@media (max-width: 768px) {
    .product-detail-hero h1 {
        font-size: 28px;
    }
    
    .models-grid {
        grid-template-columns: 1fr;
    }
    
    .apps-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .news-grid {
        grid-template-columns: 1fr;
    }
    
    .params-table {
        font-size: 13px;
    }
    
    .params-table th, .params-table td {
        padding: 10px 15px;
    }
}

.news-hero {
    background-color: #2980b9;
    color: #fff;
    padding: 60px 0;
}

.news-hero .hero-content {
    text-align: center;
    margin-bottom: 40px;
}

.news-hero .hero-content h1 {
    font-size: 36px;
    margin-bottom: 10px;
}

.news-hero .hero-content p {
    font-size: 18px;
    opacity: 0.9;
}

.featured-news {
    display: flex;
    background-color: rgba(255,255,255,0.1);
    border-radius: 10px;
    overflow: hidden;
}

.featured-image {
    width: 40%;
    background-color: #1a5276;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 14px;
    font-weight: bold;
    flex-shrink: 0;
}

.featured-content {
    padding: 30px;
    flex: 1;
}

.featured-content .news-date {
    font-size: 14px;
    opacity: 0.8;
    margin-bottom: 10px;
}

.featured-content h2 {
    font-size: 22px;
    margin-bottom: 15px;
    line-height: 1.4;
}

.featured-content p {
    font-size: 15px;
    line-height: 1.6;
    margin-bottom: 20px;
    opacity: 0.95;
}

.featured-content .read-more {
    display: inline-block;
    color: #fff;
    text-decoration: none;
    font-weight: 500;
    border: 1px solid #fff;
    padding: 10px 20px;
    border-radius: 5px;
    transition: all 0.3s;
}

.featured-content .read-more:hover {
    background-color: #fff;
    color: #2980b9;
}

.news-section {
    padding: 60px 0;
}

.news-tabs {
    display: flex;
    justify-content: center;
    margin-bottom: 40px;
    gap: 20px;
}

.tab-btn {
    padding: 12px 30px;
    font-size: 16px;
    border: none;
    border-radius: 5px;
    background-color: #f0f0f0;
    color: #2c3e50;
    cursor: pointer;
    transition: all 0.3s;
}

.tab-btn.active {
    background-color: #2980b9;
    color: #fff;
}

.tab-btn:hover {
    background-color: #e0e0e0;
}

.tab-btn.active:hover {
    background-color: #2471a3;
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 25px;
    display: none;
}

.news-grid.active {
    display: grid;
}

.news-card {
    background-color: #fff;
    padding: 25px;
    border-radius: 10px;
    border: 1px solid #e8e8e8;
    transition: all 0.3s;
}

.news-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
}

.news-card .news-image {
    width: 100%;
    height: 150px;
    background-color: #3498db;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 12px;
    font-weight: bold;
    margin-bottom: 15px;
    border-radius: 5px;
}

.news-card .news-date {
    font-size: 13px;
    color: #7f8c8d;
    margin-bottom: 10px;
}

.news-card h3 {
    font-size: 16px;
    color: #2c3e50;
    margin-bottom: 10px;
    line-height: 1.4;
}

.news-card .news-link {
    color: #2980b9;
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
}

.news-card .news-link:hover {
    text-decoration: underline;
}

.cta-section {
    background-color: #f8f9fa;
    padding: 60px 0;
}

.cta-title {
    text-align: center;
    font-size: 28px;
    color: #2c3e50;
    margin-bottom: 40px;
}

.cta-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 25px;
}

.cta-card {
    background-color: #fff;
    padding: 30px;
    border-radius: 10px;
    border: 1px solid #e8e8e8;
    text-align: center;
    transition: all 0.3s;
}

.cta-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
}

.cta-card h3 {
    font-size: 20px;
    color: #2980b9;
    margin-bottom: 15px;
}

.cta-card p {
    font-size: 14px;
    color: #7f8c8d;
    line-height: 1.6;
    margin-bottom: 20px;
}

.cta-link {
    color: #2980b9;
    text-decoration: none;
    font-weight: 500;
}

.cta-link:hover {
    text-decoration: underline;
}

@media (max-width: 768px) {
    .featured-news {
        flex-direction: column;
    }
    
    .featured-image {
        width: 100%;
        height: 150px;
    }
    
    .featured-content {
        padding: 20px;
    }
    
    .news-grid {
        grid-template-columns: 1fr;
    }
    
    .news-tabs {
        flex-direction: column;
        align-items: center;
    }
    
    .tab-btn {
        width: 100%;
        max-width: 200px;
    }
    
    .cta-cards {
        grid-template-columns: 1fr;
    }
}

.article-hero {
    background-color: #2980b9;
    color: #fff;
    padding: 60px 0;
}

.article-hero .article-meta {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 20px;
}

.article-hero .article-date {
    font-size: 14px;
    opacity: 0.9;
}

.article-hero .article-tag {
    background-color: rgba(255,255,255,0.2);
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 13px;
}

.article-hero h1 {
    font-size: 32px;
    line-height: 1.4;
    max-width: 800px;
}

.article-content {
    padding: 60px 0;
}

.article-body {
    max-width: 800px;
    margin: 0 auto;
    font-size: 16px;
    line-height: 1.8;
    color: #333;
}

.article-body p {
    margin-bottom: 20px;
}

.article-body h2 {
    font-size: 22px;
    color: #2c3e50;
    margin-top: 40px;
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 2px solid #2980b9;
}

.article-body h3 {
    font-size: 18px;
    color: #2980b9;
    margin-top: 30px;
    margin-bottom: 15px;
}

.article-body ul {
    margin-bottom: 20px;
    padding-left: 30px;
}

.article-body li {
    margin-bottom: 10px;
    color: #555;
}

.article-image {
    width: 100%;
    height: 300px;
    background-color: #ecf0f1;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #95a5a6;
    font-size: 14px;
    margin: 30px 0;
    border-radius: 10px;
}

.article-nav {
    background-color: #f8f9fa;
    padding: 40px 0;
}

.article-nav .nav-links {
    display: flex;
    justify-content: space-between;
}

.article-nav .nav-prev,
.article-nav .nav-next {
    flex: 1;
    max-width: 45%;
}

.article-nav .nav-next {
    text-align: right;
    margin-left: auto;
}

.article-nav span {
    display: block;
    font-size: 13px;
    color: #7f8c8d;
    margin-bottom: 5px;
}

.article-nav a {
    color: #2980b9;
    text-decoration: none;
    font-size: 15px;
    font-weight: 500;
}

.article-nav a:hover {
    text-decoration: underline;
}

.related-articles {
    padding: 60px 0;
}

.related-articles .section-header {
    text-align: center;
    margin-bottom: 40px;
}

.related-articles .section-header h2 {
    font-size: 28px;
    color: #2c3e50;
}

.related-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 25px;
}

.related-card {
    background-color: #fff;
    padding: 25px;
    border-radius: 10px;
    border: 1px solid #e8e8e8;
    transition: all 0.3s;
}

.related-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
}

.related-image {
    width: 100%;
    height: 120px;
    background-color: #3498db;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 12px;
    font-weight: bold;
    margin-bottom: 15px;
    border-radius: 5px;
}

.related-date {
    font-size: 13px;
    color: #7f8c8d;
    margin-bottom: 8px;
}

.related-tag {
    display: inline-block;
    background-color: #e8f4f8;
    color: #2980b9;
    padding: 3px 10px;
    border-radius: 15px;
    font-size: 12px;
    margin-bottom: 10px;
}

.related-card h3 {
    font-size: 15px;
    color: #2c3e50;
    margin-bottom: 15px;
    line-height: 1.4;
    min-height: 42px;
}

.related-link {
    color: #2980b9;
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
}

.related-link:hover {
    text-decoration: underline;
}

@media (max-width: 768px) {
    .article-hero h1 {
        font-size: 24px;
    }
    
    .article-body {
        font-size: 15px;
    }
    
    .article-body h2 {
        font-size: 20px;
    }
    
    .article-nav .nav-links {
        flex-direction: column;
        gap: 20px;
    }
    
    .article-nav .nav-prev,
    .article-nav .nav-next {
        max-width: 100%;
    }
    
    .related-grid {
        grid-template-columns: 1fr;
    }
}

.contact-hero {
    background: linear-gradient(135deg, #3498db 0%, #2980b9 100%);
    color: #fff;
    padding: 100px 0 60px;
    text-align: center;
}

.contact-hero h1 {
    font-size: 42px;
    margin-bottom: 15px;
}

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

.contact-hero .hero-description {
    font-size: 15px;
    max-width: 800px;
    margin: 0 auto;
    line-height: 1.8;
    opacity: 0.85;
}

.headquarters-section {
    background-color: #fff;
    padding: 80px 0;
}

.headquarters-section .section-header h2 {
    font-size: 32px;
    color: #2c3e50;
    margin-bottom: 15px;
}

.contact-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    margin-top: 40px;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.info-item {
    display: flex;
    gap: 15px;
    align-items: flex-start;
}

.info-icon {
    font-size: 24px;
    flex-shrink: 0;
}

.info-content {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.info-label {
    font-size: 14px;
    color: #999;
    font-weight: 500;
}

.info-value {
    font-size: 16px;
    color: #2c3e50;
    line-height: 1.6;
}

.contact-map {
    min-height: 400px;
}

.map-placeholder {
    width: 100%;
    height: 100%;
    min-height: 400px;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    border-radius: 10px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: #666;
    font-size: 18px;
    font-weight: 500;
    box-shadow: 0 2px 10px rgba(0,0,0,0.08);
}

.map-placeholder p {
    font-size: 14px;
    margin-top: 10px;
    opacity: 0.7;
}

.production-section {
    background-color: #f8f9fa;
    padding: 80px 0;
}

.production-section .section-header h2 {
    font-size: 32px;
    color: #2c3e50;
    margin-bottom: 10px;
}

.production-section .section-header p {
    font-size: 16px;
    color: #3498db;
    font-weight: 500;
}

.base-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.base-item {
    background-color: #fff;
    padding: 25px;
    border-radius: 10px;
    border: 1px solid #e8e8e8;
    transition: all 0.3s;
}

.base-item:hover {
    box-shadow: 0 4px 15px rgba(0,0,0,0.08);
    border-color: #3498db;
}

.base-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
}

.base-name {
    font-size: 18px;
    font-weight: 600;
    color: #2c3e50;
}

.base-year {
    font-size: 14px;
    color: #3498db;
    background-color: #e8f4fd;
    padding: 5px 12px;
    border-radius: 4px;
}

.base-address {
    font-size: 15px;
    color: #666;
    line-height: 1.6;
}

.sales-section {
    background-color: #fff;
    padding: 80px 0;
}

.sales-section .section-header h2 {
    font-size: 32px;
    color: #2c3e50;
    margin-bottom: 10px;
}

.sales-section .section-header p {
    font-size: 16px;
    color: #3498db;
    font-weight: 500;
}

.sales-content {
    margin-top: 40px;
}

.sales-text {
    background-color: #f8f9fa;
    padding: 40px;
    border-radius: 10px;
    margin-bottom: 40px;
}

.sales-text p {
    font-size: 16px;
    color: #666;
    line-height: 1.8;
    max-width: 900px;
}

.world-map {
    width: 100%;
}

.world-map-placeholder {
    width: 100%;
    height: 350px;
    background: linear-gradient(135deg, #e8f4fd 0%, #d4e6f1 100%);
    border-radius: 10px;
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.world-label {
    font-size: 20px;
    font-weight: 600;
    color: #2980b9;
    margin-bottom: 20px;
}

.region-markers {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.marker {
    position: absolute;
    width: 16px;
    height: 16px;
    background-color: #3498db;
    border-radius: 50%;
    border: 3px solid #fff;
    box-shadow: 0 2px 8px rgba(52, 152, 219, 0.4);
    cursor: pointer;
    transition: all 0.3s;
}

.marker:hover {
    transform: scale(1.5);
    box-shadow: 0 4px 12px rgba(52, 152, 219, 0.6);
}

.marker.china {
    top: 45%;
    left: 75%;
}

.marker.usa {
    top: 35%;
    left: 20%;
}

.marker.europe {
    top: 30%;
    left: 48%;
}

.marker.brazil {
    top: 65%;
    left: 32%;
}

.region-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
    background-color: rgba(255,255,255,0.9);
    padding: 25px 35px;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    margin-top: 15px;
}

.region-item {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 15px;
    color: #555;
}

.region-dot {
    width: 10px;
    height: 10px;
    background-color: #3498db;
    border-radius: 50%;
    flex-shrink: 0;
}

.region-dot.usa {
    background-color: #e74c3c;
}

.region-dot.europe {
    background-color: #27ae60;
}

.region-dot.brazil {
    background-color: #f39c12;
}

@media (max-width: 768px) {
    .contact-hero h1 {
        font-size: 28px;
    }
    
    .contact-hero {
        padding: 80px 0 50px;
    }
    
    .contact-layout {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .map-placeholder {
        min-height: 300px;
    }
    
    .sales-text {
        padding: 25px;
    }
    
    .world-map-placeholder {
        height: 300px;
    }
    
    .region-list {
        padding: 20px;
    }
    
    .base-item {
        padding: 20px;
    }
    
    .headquarters-section,
    .production-section,
    .sales-section {
        padding: 60px 0;
    }
}

.rnd-section,
.patent-section,
.process-section {
    padding: 80px 0;
}

.rnd-section {
    background-color: #f8f9fa;
}

.patent-section {
    background-color: #fff;
}

.process-section {
    background-color: #f8f9fa;
}

.section-header {
    text-align: center;
    margin-bottom: 50px;
}

.section-header h2 {
    font-size: 28px;
    color: #2c3e50;
    margin-bottom: 15px;
}

.section-header p {
    font-size: 16px;
    color: #666;
    line-height: 1.8;
    max-width: 700px;
    margin: 0 auto;
}

.split-layout {
    display: grid !important;
    grid-template-columns: 1fr 1fr !important;
    gap: 40px !important;
    align-items: flex-start !important;
}

.split-left {
    display: flex !important;
    flex-direction: column !important;
    gap: 12px !important;
    min-height: 350px !important;
    max-height: none !important;
}

.feature-item {
    display: flex !important;
    align-items: flex-start !important;
    gap: 12px !important;
    padding: 16px !important;
    border-radius: 10px !important;
    cursor: pointer !important;
    transition: all 0.3s !important;
    border: 2px solid transparent !important;
    overflow: visible !important;
    min-height: auto !important;
    max-height: none !important;
}

.feature-item:hover,
.feature-item.active {
    background-color: #fff;
    border-color: #3498db;
    box-shadow: 0 4px 15px rgba(52, 152, 219, 0.15);
}

.item-icon {
    font-size: 28px;
    flex-shrink: 0;
}

.item-content h4 {
    font-size: 16px;
    color: #2c3e50;
    margin-bottom: 6px;
    transition: color 0.3s;
}

.feature-item.active .item-content h4,
.feature-item:hover .item-content h4 {
    color: #3498db;
}

.item-content p {
    font-size: 13px;
    color: #666;
    line-height: 1.5;
}

.split-right {
    position: relative;
    min-height: 350px;
}

.image-switcher {
    position: relative;
    width: 100%;
    height: 100%;
}

.switch-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 350px;
    background: linear-gradient(135deg, #ecf0f1 0%, #bdc3c7 100%);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #7f8c8d;
    font-size: 16px;
    font-weight: 500;
    opacity: 0;
    visibility: hidden;
    transition: all 0.4s ease;
}

.switch-image.active {
    opacity: 1;
    visibility: visible;
}

.switch-image:nth-child(1) { background: linear-gradient(135deg, #a8e6cf 0%, #88d8b0 100%); }
.switch-image:nth-child(2) { background: linear-gradient(135deg, #ffd3b6 0%, #ffaaa5 100%); }
.switch-image:nth-child(3) { background: linear-gradient(135deg, #dcedc1 0%, #b5eaaa 100%); }
.switch-image:nth-child(4) { background: linear-gradient(135deg, #ffaaa5 0%, #ff8b94 100%); }

.process-flow {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.process-step {
    flex: 1;
    min-width: 200px;
    background-color: #fff;
    padding: 30px;
    border-radius: 10px;
    border: 1px solid #e8e8e8;
    text-align: center;
    transition: all 0.3s;
}

.process-step:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
}

.step-number {
    width: 40px;
    height: 40px;
    background-color: #3498db;
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 15px;
    font-weight: bold;
    font-size: 16px;
}

.step-content h4 {
    font-size: 16px;
    color: #2c3e50;
    margin-bottom: 8px;
}

.step-content p {
    font-size: 14px;
    color: #666;
}

.process-arrow {
    font-size: 24px;
    color: #3498db;
    font-weight: bold;
    flex-shrink: 0;
}

@media (max-width: 768px) {
    .rnd-section,
    .patent-section,
    .process-section {
        padding: 60px 0;
    }

    .split-layout {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .split-right {
        min-height: 250px;
    }

    .switch-image {
        height: 250px;
        font-size: 14px;
    }

    .feature-item {
        padding: 15px;
    }

    .item-icon {
        font-size: 24px;
    }

    .item-content h4 {
        font-size: 15px;
    }

    .item-content p {
        font-size: 12px;
    }

    .process-flow {
        flex-direction: column;
        gap: 15px;
    }

    .process-arrow {
        transform: rotate(90deg);
    }

    .image-placeholder {
        height: 180px;
        font-size: 13px;
    }
}

.esg-section {
    padding: 80px 0;
    background-color: #f8f9fa;
}

.esg-section.alt {
    background-color: #fff;
}

.esg-card {
    display: grid;
    grid-template-columns: auto 1fr 400px;
    gap: 30px;
    align-items: flex-start;
    background-color: #fff;
    padding: 40px;
    border-radius: 15px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
}

.esg-icon {
    font-size: 48px;
    flex-shrink: 0;
}

.esg-content {
    flex: 1;
}

.esg-content h2 {
    font-size: 24px;
    color: #2c3e50;
    margin-bottom: 15px;
}

.esg-content p {
    font-size: 15px;
    color: #666;
    line-height: 1.8;
    margin-bottom: 20px;
}

.esg-list {
    list-style: none;
    padding: 0;
}

.esg-list li {
    font-size: 14px;
    color: #555;
    margin-bottom: 10px;
    padding-left: 25px;
    position: relative;
}

.esg-list li:before {
    content: "✓";
    position: absolute;
    left: 0;
    color: #3498db;
    font-weight: bold;
}

.esg-image {
    width: 100%;
    height: 250px;
    background: linear-gradient(135deg, #ecf0f1 0%, #bdc3c7 100%);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #7f8c8d;
    font-size: 15px;
    font-weight: 500;
}

@media (max-width: 1024px) {
    .esg-card {
        grid-template-columns: auto 1fr;
    }
    
    .esg-image {
        grid-column: 1 / -1;
        width: 100%;
    }
}

@media (max-width: 768px) {
    .esg-section {
        padding: 60px 0;
    }
    
    .esg-card {
        grid-template-columns: 1fr;
        padding: 25px;
        gap: 20px;
    }
    
    .esg-icon {
        font-size: 40px;
    }
    
    .esg-content h2 {
        font-size: 20px;
    }
    
    .esg-image {
        height: 200px;
        font-size: 13px;
    }
}

.cta-section .news-grid {
    display: grid !important;
    grid-template-columns: repeat(3, 1fr) !important;
    gap: 25px !important;
}

.cta-section .news-card.simple-card {
    display: flex !important;
    flex-direction: column !important;
    background-color: #fff !important;
    border-radius: 12px !important;
    overflow: hidden !important;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08) !important;
    cursor: pointer !important;
    transition: transform 0.3s, box-shadow 0.3s !important;
    padding: 0 !important;
    border: none !important;
}

.cta-section .news-card.simple-card:hover {
    transform: translateY(-5px) !important;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.12) !important;
}

.cta-section .news-card.simple-card .news-image {
    height: 180px !important;
    background: linear-gradient(135deg, #ecf0f1 0%, #bdc3c7 100%) !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    color: #7f8c8d !important;
    font-size: 14px !important;
    font-weight: 500 !important;
}

.cta-section .news-card.simple-card .card-info {
    padding: 20px !important;
}

.cta-section .news-card.simple-card h3 {
    font-size: 15px !important;
    color: #2c3e50 !important;
    margin-bottom: 10px !important;
    line-height: 1.5 !important;
    font-weight: 500 !important;
    padding: 0 !important;
}

.cta-section .news-card.simple-card .news-date {
    font-size: 13px !important;
    color: #95a5a6 !important;
}

.solution-top {
    padding: 60px 0;
    background-color: #fff;
}

.solution-top .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
}

.breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 20px;
    font-size: 13px;
    color: #95a5a6;
}

.breadcrumb a {
    color: #95a5a6;
    text-decoration: none;
    transition: color 0.3s;
}

.breadcrumb a:hover {
    color: #3498db;
}

.breadcrumb .current {
    color: #2c3e50;
    font-weight: 500;
}

.tech-title {
    font-size: 18px;
    color: #2c3e50;
    margin: 25px 0 15px;
    font-weight: 600;
}

.tech-list {
    list-style: none;
    padding: 0;
}

.tech-list li {
    font-size: 15px;
    color: #555;
    margin-bottom: 12px;
    padding-left: 25px;
    position: relative;
    line-height: 1.6;
}

.tech-list li:before {
    content: "✓";
    position: absolute;
    left: 0;
    color: #3498db;
    font-weight: bold;
}

.solution-content h1 {
    font-size: 32px;
    color: #2c3e50;
    margin-bottom: 25px;
    font-weight: 600;
}

.solution-content p {
    font-size: 15px;
    color: #666;
    line-height: 1.8;
    margin-bottom: 20px;
}

.solution-content p:last-child {
    margin-bottom: 0;
}

.solution-image {
    width: 100%;
    height: 350px;
    background: linear-gradient(135deg, #ecf0f1 0%, #bdc3c7 100%);
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #7f8c8d;
    font-size: 16px;
    font-weight: 500;
}

@media (max-width: 768px) {
    .solution-top .container {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .solution-content h1 {
        font-size: 24px;
    }
    
    .solution-image {
        height: 250px;
        font-size: 14px;
    }
}