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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f5f7fa;
}

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

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

.header {
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    padding: 15px 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

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

.logo {
    font-size: 28px;
    font-weight: bold;
    color: #00d4ff;
}

.logo span {
    color: #fff;
}

.nav ul {
    display: flex;
    gap: 30px;
}

.nav a {
    color: #fff;
    font-size: 16px;
    transition: color 0.3s;
}

.nav a:hover {
    color: #00d4ff;
}

.header-btns {
    display: flex;
    gap: 15px;
}

.btn {
    padding: 10px 25px;
    border-radius: 5px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    border: none;
}

.btn-primary {
    background: linear-gradient(135deg, #00d4ff 0%, #0099cc 100%);
    color: #fff;
}

.btn-primary:hover {
    background: linear-gradient(135deg, #00b8e6 0%, #0088b3 100%);
    transform: translateY(-2px);
}

.btn-secondary {
    background: transparent;
    color: #fff;
    border: 2px solid #00d4ff;
}

.btn-secondary:hover {
    background: #00d4ff;
    color: #1a1a2e;
}

.banner {
    background: linear-gradient(135deg, #1a1a2e 0%, #0f3460 50%, #16213e 100%);
    padding: 100px 0;
    text-align: center;
    color: #fff;
}

.banner h1 {
    font-size: 48px;
    margin-bottom: 20px;
    background: linear-gradient(135deg, #00d4ff, #fff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.banner p {
    font-size: 20px;
    margin-bottom: 40px;
    color: #b8c5d6;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.banner-btns {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
}

.btn-large {
    padding: 15px 40px;
    font-size: 18px;
}

.features {
    padding: 80px 0;
    background: #fff;
}

.section-title {
    text-align: center;
    margin-bottom: 60px;
}

.section-title h2 {
    font-size: 36px;
    color: #1a1a2e;
    margin-bottom: 15px;
}

.section-title p {
    color: #666;
    font-size: 18px;
}

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

.feature-card {
    background: #f8f9fa;
    padding: 40px 30px;
    border-radius: 10px;
    text-align: center;
    transition: transform 0.3s, box-shadow 0.3s;
    border: 1px solid #e9ecef;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

.feature-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #00d4ff 0%, #0099cc 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 36px;
    color: #fff;
}

.feature-card h3 {
    font-size: 22px;
    margin-bottom: 15px;
    color: #1a1a2e;
}

.feature-card p {
    color: #666;
    line-height: 1.8;
}

.about-section {
    padding: 80px 0;
    background: #f5f7fa;
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-text h2 {
    font-size: 36px;
    color: #1a1a2e;
    margin-bottom: 20px;
}

.about-text p {
    color: #666;
    margin-bottom: 20px;
    line-height: 1.8;
    font-size: 16px;
}

.about-image {
    background: linear-gradient(135deg, #1a1a2e 0%, #0f3460 100%);
    height: 400px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 24px;
}

.stats {
    padding: 60px 0;
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    color: #fff;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    text-align: center;
}

.stat-item h3 {
    font-size: 48px;
    color: #00d4ff;
    margin-bottom: 10px;
}

.stat-item p {
    font-size: 18px;
    color: #b8c5d6;
}

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

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
}

.product-card {
    background: #f8f9fa;
    border-radius: 10px;
    overflow: hidden;
    border: 1px solid #e9ecef;
    transition: transform 0.3s, box-shadow 0.3s;
}

.product-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

.product-image {
    height: 200px;
    background: linear-gradient(135deg, #0f3460 0%, #1a1a2e 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 20px;
}

.product-info {
    padding: 30px;
}

.product-info h3 {
    font-size: 22px;
    margin-bottom: 15px;
    color: #1a1a2e;
}

.product-info p {
    color: #666;
    margin-bottom: 20px;
    line-height: 1.8;
}

.news-section {
    padding: 80px 0;
    background: #f5f7fa;
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
}

.news-card {
    background: #fff;
    border-radius: 10px;
    overflow: hidden;
    border: 1px solid #e9ecef;
    transition: transform 0.3s, box-shadow 0.3s;
}

.news-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

.news-image {
    height: 200px;
    background: linear-gradient(135deg, #1a1a2e 0%, #0f3460 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
}

.news-content {
    padding: 25px;
}

.news-date {
    color: #00d4ff;
    font-size: 14px;
    margin-bottom: 10px;
}

.news-content h3 {
    font-size: 20px;
    margin-bottom: 15px;
    color: #1a1a2e;
}

.news-content p {
    color: #666;
    line-height: 1.8;
}

.breadcrumb {
    background: #1a1a2e;
    padding: 15px 0;
    color: #b8c5d6;
}

.breadcrumb a {
    color: #00d4ff;
}

.breadcrumb span {
    margin: 0 10px;
}

.page-header {
    background: linear-gradient(135deg, #1a1a2e 0%, #0f3460 50%, #16213e 100%);
    padding: 80px 0;
    text-align: center;
    color: #fff;
}

.page-header h1 {
    font-size: 42px;
    margin-bottom: 15px;
}

.page-header p {
    color: #b8c5d6;
    font-size: 18px;
}

.content-section {
    padding: 60px 0;
    background: #fff;
    min-height: 600px;
}

.content-box {
    max-width: 900px;
    margin: 0 auto;
}

.content-box h2 {
    font-size: 32px;
    color: #1a1a2e;
    margin-bottom: 30px;
}

.content-box h3 {
    font-size: 24px;
    color: #1a1a2e;
    margin: 40px 0 20px;
}

.content-box p {
    color: #666;
    line-height: 2;
    margin-bottom: 20px;
    font-size: 16px;
}

.content-box ul {
    list-style: disc;
    margin-left: 30px;
    margin-bottom: 20px;
}

.content-box li {
    color: #666;
    line-height: 2;
    margin-bottom: 10px;
}

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

.contact-info h3 {
    font-size: 24px;
    color: #1a1a2e;
    margin-bottom: 30px;
}

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

.contact-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, #00d4ff 0%, #0099cc 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 20px;
    color: #fff;
    font-size: 20px;
    flex-shrink: 0;
}

.contact-text h4 {
    font-size: 18px;
    color: #1a1a2e;
    margin-bottom: 5px;
}

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

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

.form-group {
    margin-bottom: 25px;
}

.form-group label {
    display: block;
    margin-bottom: 10px;
    color: #1a1a2e;
    font-weight: 600;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 15px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 16px;
    transition: border-color 0.3s;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #00d4ff;
}

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

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

.news-list-item {
    display: grid;
    grid-template-columns: 200px 1fr;
    gap: 30px;
    background: #fff;
    border-radius: 10px;
    overflow: hidden;
    border: 1px solid #e9ecef;
    transition: transform 0.3s, box-shadow 0.3s;
}

.news-list-item:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
}

.news-list-image {
    background: linear-gradient(135deg, #1a1a2e 0%, #0f3460 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    min-height: 150px;
}

.news-list-content {
    padding: 25px;
}

.news-list-content .news-date {
    color: #00d4ff;
    font-size: 14px;
    margin-bottom: 10px;
}

.news-list-content h3 {
    font-size: 20px;
    margin-bottom: 15px;
    color: #1a1a2e;
}

.news-list-content p {
    color: #666;
    line-height: 1.8;
}

.pagination {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-top: 50px;
}

.pagination a {
    padding: 10px 20px;
    background: #fff;
    border: 1px solid #ddd;
    border-radius: 5px;
    color: #1a1a2e;
    transition: all 0.3s;
}

.pagination a:hover,
.pagination a.active {
    background: #00d4ff;
    color: #fff;
    border-color: #00d4ff;
}

.article-header {
    margin-bottom: 40px;
}

.article-header h1 {
    font-size: 36px;
    color: #1a1a2e;
    margin-bottom: 20px;
}

.article-meta {
    display: flex;
    gap: 30px;
    color: #666;
    font-size: 14px;
}

.article-content {
    color: #333;
    line-height: 2;
    font-size: 16px;
}

.article-content p {
    margin-bottom: 25px;
}

.article-content h2 {
    font-size: 28px;
    color: #1a1a2e;
    margin: 40px 0 20px;
}

.article-content h3 {
    font-size: 22px;
    color: #1a1a2e;
    margin: 30px 0 15px;
}

.article-content ul {
    margin: 20px 0;
    padding-left: 30px;
}

.article-content li {
    margin-bottom: 10px;
}

.cta-section {
    background: linear-gradient(135deg, #1a1a2e 0%, #0f3460 100%);
    padding: 80px 0;
    text-align: center;
    color: #fff;
}

.cta-section h2 {
    font-size: 36px;
    margin-bottom: 20px;
}

.cta-section p {
    font-size: 18px;
    color: #b8c5d6;
    margin-bottom: 40px;
}

.footer {
    background: #0a0a14;
    color: #b8c5d6;
    padding: 60px 0 30px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-brand h3 {
    font-size: 24px;
    color: #00d4ff;
    margin-bottom: 20px;
}

.footer-brand p {
    line-height: 1.8;
    margin-bottom: 20px;
}

.footer-links h4 {
    font-size: 18px;
    color: #fff;
    margin-bottom: 20px;
}

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

.footer-links a {
    color: #b8c5d6;
    transition: color 0.3s;
}

.footer-links a:hover {
    color: #00d4ff;
}

.footer-bottom {
    border-top: 1px solid #1a1a2e;
    padding-top: 30px;
    text-align: center;
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: #fff;
    font-size: 24px;
    cursor: pointer;
}

.sticky-btns {
    position: fixed;
    bottom: 30px;
    right: 30px;
    display: flex;
    flex-direction: column;
    gap: 15px;
    z-index: 999;
}

.sticky-btn {
    padding: 15px 30px;
    background: linear-gradient(135deg, #00d4ff 0%, #0099cc 100%);
    color: #fff;
    border-radius: 50px;
    font-weight: 600;
    box-shadow: 0 5px 20px rgba(0,212,255,0.4);
    transition: transform 0.3s;
    text-align: center;
}

.sticky-btn:hover {
    transform: scale(1.05);
}

@media (max-width: 768px) {
    .nav {
        display: none;
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    .header-btns {
        display: none;
    }
    
    .banner h1 {
        font-size: 32px;
    }
    
    .banner p {
        font-size: 16px;
    }
    
    .about-content {
        grid-template-columns: 1fr;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .news-list-item {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
    }
    
    .sticky-btns {
        left: 20px;
        right: 20px;
        flex-direction: row;
        justify-content: center;
    }
    
    .sticky-btn {
        flex: 1;
        padding: 12px 20px;
        font-size: 14px;
    }
}