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

body {
    font-family: "Microsoft YaHei", "PingFang SC", "Helvetica Neue", Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f5f7fa;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

.header {
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
    padding: 15px 0;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0,0,0,0.3);
}

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

.logo {
    font-size: 28px;
    font-weight: bold;
    color: #00d4ff;
    text-decoration: none;
}

.logo span {
    color: #fff;
}

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

.nav a {
    color: #fff;
    text-decoration: none;
    font-size: 16px;
    transition: color 0.3s;
    padding: 5px 10px;
}

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

.nav a.active {
    color: #00d4ff;
    border-bottom: 2px solid #00d4ff;
}

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

.btn {
    padding: 10px 25px;
    border-radius: 5px;
    text-decoration: none;
    font-size: 14px;
    font-weight: bold;
    transition: all 0.3s;
    display: inline-block;
    cursor: pointer;
    border: none;
}

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

.btn-primary:hover {
    background: linear-gradient(135deg, #0099cc 0%, #0077aa 100%);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0,212,255,0.4);
}

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

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

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

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

.banner {
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
    padding: 150px 0 100px;
    text-align: center;
    color: #fff;
    margin-top: 70px;
}

.banner h1 {
    font-size: 48px;
    margin-bottom: 20px;
    font-weight: bold;
}

.banner h1 span {
    color: #00d4ff;
}

.banner p {
    font-size: 20px;
    margin-bottom: 40px;
    color: #ccc;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

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

.stats {
    background: #fff;
    padding: 60px 0;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.stat-item {
    text-align: center;
    padding: 30px;
    border-radius: 10px;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    transition: transform 0.3s;
}

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

.stat-number {
    font-size: 36px;
    font-weight: bold;
    color: #00d4ff;
    margin-bottom: 10px;
}

.stat-label {
    font-size: 16px;
    color: #666;
}

.section {
    padding: 80px 0;
}

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

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

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

.features {
    background: #fff;
}

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

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

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.1);
    border-color: #00d4ff;
}

.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;
}

.products {
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
}

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

.product-card {
    background: #fff;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
    transition: all 0.3s;
}

.product-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.15);
}

.product-header {
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    padding: 30px;
    text-align: center;
    color: #fff;
}

.product-header h3 {
    font-size: 24px;
    margin-bottom: 10px;
}

.product-body {
    padding: 30px;
}

.product-body ul {
    list-style: none;
}

.product-body li {
    padding: 10px 0;
    border-bottom: 1px solid #e9ecef;
    color: #666;
}

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

.news {
    background: #fff;
}

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

.news-card {
    background: #f8f9fa;
    border-radius: 10px;
    overflow: hidden;
    transition: all 0.3s;
    border: 1px solid #e9ecef;
}

.news-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 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: #00d4ff;
    font-size: 48px;
}

.news-content {
    padding: 25px;
}

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

.news-card h3 {
    font-size: 18px;
    margin-bottom: 15px;
    color: #1a1a2e;
    line-height: 1.4;
}

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

.news-card a {
    color: #00d4ff;
    text-decoration: none;
    font-weight: bold;
}

.about {
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
}

.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%);
    border-radius: 10px;
    height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #00d4ff;
    font-size: 120px;
}

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

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

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

.footer {
    background: #0a0a0a;
    color: #fff;
    padding: 60px 0 20px;
}

.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 {
    color: #999;
    line-height: 1.8;
}

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

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

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

.footer-links a {
    color: #999;
    text-decoration: none;
    transition: color 0.3s;
}

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

.footer-bottom {
    border-top: 1px solid #333;
    padding-top: 20px;
    text-align: center;
    color: #666;
}

.breadcrumb {
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    padding: 120px 0 40px;
    margin-top: 70px;
}

.breadcrumb-content {
    text-align: center;
    color: #fff;
}

.breadcrumb-content h1 {
    font-size: 36px;
    margin-bottom: 15px;
}

.breadcrumb-nav {
    color: #ccc;
}

.breadcrumb-nav a {
    color: #00d4ff;
    text-decoration: none;
}

.breadcrumb-nav span {
    margin: 0 10px;
}

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

.about-section {
    background: #fff;
}

.about-block {
    margin-bottom: 60px;
}

.about-block h2 {
    font-size: 28px;
    color: #1a1a2e;
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 2px solid #00d4ff;
    display: inline-block;
}

.about-block p {
    color: #666;
    line-height: 1.8;
    margin-bottom: 15px;
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    margin-top: 30px;
}

.team-member {
    text-align: center;
    padding: 30px;
    background: #f8f9fa;
    border-radius: 10px;
}

.team-avatar {
    width: 100px;
    height: 100px;
    background: linear-gradient(135deg, #00d4ff 0%, #0099cc 100%);
    border-radius: 50%;
    margin: 0 auto 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 36px;
}

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

.team-member p {
    color: #00d4ff;
    font-size: 14px;
}

.news-list {
    background: #fff;
}

.news-list-item {
    display: flex;
    gap: 30px;
    padding: 30px;
    border-bottom: 1px solid #e9ecef;
    transition: all 0.3s;
}

.news-list-item:hover {
    background: #f8f9fa;
}

.news-list-image {
    width: 200px;
    height: 150px;
    background: linear-gradient(135deg, #1a1a2e 0%, #0f3460 100%);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #00d4ff;
    font-size: 48px;
    flex-shrink: 0;
}

.news-list-content {
    flex: 1;
}

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

.news-list-content h3 {
    font-size: 20px;
    color: #1a1a2e;
    margin-bottom: 10px;
}

.news-list-content p {
    color: #666;
    line-height: 1.6;
}

.news-list-content a {
    color: #00d4ff;
    text-decoration: none;
    font-weight: bold;
}

.pagination {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-top: 40px;
}

.pagination a {
    padding: 10px 20px;
    background: #f8f9fa;
    color: #666;
    text-decoration: none;
    border-radius: 5px;
    transition: all 0.3s;
}

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

.news-detail {
    background: #fff;
}

.news-detail-header {
    text-align: center;
    margin-bottom: 40px;
    padding-bottom: 30px;
    border-bottom: 1px solid #e9ecef;
}

.news-detail-header h1 {
    font-size: 32px;
    color: #1a1a2e;
    margin-bottom: 15px;
}

.news-detail-header .meta {
    color: #999;
    font-size: 14px;
}

.news-detail-header .meta span {
    margin: 0 15px;
}

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

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

.news-detail-content h2 {
    font-size: 24px;
    color: #1a1a2e;
    margin: 30px 0 15px;
}

.news-detail-content h3 {
    font-size: 20px;
    color: #1a1a2e;
    margin: 25px 0 10px;
}

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

.news-detail-content li {
    color: #666;
    margin-bottom: 10px;
    line-height: 1.6;
}

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

.contact-info h2 {
    font-size: 28px;
    color: #1a1a2e;
    margin-bottom: 30px;
}

.contact-item {
    display: flex;
    gap: 20px;
    margin-bottom: 30px;
    padding: 25px;
    background: #f8f9fa;
    border-radius: 10px;
}

.contact-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #00d4ff 0%, #0099cc 100%);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 24px;
    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;
}

.contact-form h2 {
    font-size: 28px;
    color: #1a1a2e;
    margin-bottom: 30px;
}

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

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: #1a1a2e;
    font-weight: bold;
}

.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;
}

.mobile-btns {
    display: none;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: #fff;
    padding: 15px;
    box-shadow: 0 -5px 20px rgba(0,0,0,0.1);
    z-index: 999;
    gap: 15px;
}

.mobile-btns .btn {
    flex: 1;
    text-align: center;
}

@media (max-width: 992px) {
    .nav {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: #1a1a2e;
        flex-direction: column;
        padding: 20px;
        gap: 15px;
    }
    
    .nav.active {
        display: flex;
    }
    
    .mobile-menu {
        display: block;
    }
    
    .header-btns {
        display: none;
    }
    
    .banner {
        padding: 120px 0 80px;
    }
    
    .banner h1 {
        font-size: 32px;
    }
    
    .stats-grid,
    .features-grid,
    .products-grid,
    .news-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .about-content {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .team-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .news-list-item {
        flex-direction: column;
    }
    
    .news-list-image {
        width: 100%;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .mobile-btns {
        display: flex;
    }
    
    body {
        padding-bottom: 80px;
    }
}

@media (max-width: 576px) {
    .stats-grid,
    .features-grid,
    .products-grid,
    .news-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
    }
    
    .team-grid {
        grid-template-columns: 1fr;
    }
    
    .banner h1 {
        font-size: 24px;
    }
    
    .section-title h2 {
        font-size: 28px;
    }
}