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

body {
    font-family: 'Arial', sans-serif;
    background-color: #0a0a14;
    color: #ffffff;
    line-height: 1.6;
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
}

.header {
    background-color: #0f0f20;
    padding: 20px 0;
    border-bottom: 1px solid #1a1a30;
    position: sticky;
    top: 0;
    z-index: 1000;
}

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

.logo a {
    color: #00e5ff;
    font-size: 24px;
    font-weight: bold;
    text-decoration: none;
}

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

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

.nav ul li a {
    color: #ffffff;
    text-decoration: none;
    font-size: 16px;
    transition: color 0.3s ease;
}

.nav ul li a:hover {
    color: #00e5ff;
}

.header-buttons {
    display: flex;
    gap: 10px;
}

.btn {
    display: inline-block;
    padding: 10px 20px;
    border-radius: 4px;
    text-decoration: none;
    font-weight: bold;
    transition: all 0.3s ease;
}

.btn-primary {
    background-color: #00e5ff;
    color: #0a0a14;
}

.btn-primary:hover {
    background-color: #00b8cc;
    transform: translateY(-2px);
}

.btn-secondary {
    background-color: #2e7d32;
    color: #ffffff;
}

.btn-secondary:hover {
    background-color: #1b5e20;
    transform: translateY(-2px);
}

.btn-large {
    padding: 15px 30px;
    font-size: 18px;
}

.btn-link {
    background: none;
    color: #00e5ff;
    padding: 0;
    text-decoration: underline;
}

.btn-link:hover {
    color: #00b8cc;
    transform: none;
}

.hero {
    background: linear-gradient(135deg, #0f0f20 0%, #1a1a30 100%);
    padding: 100px 0;
    text-align: center;
}

.hero-content h1 {
    font-size: 48px;
    margin-bottom: 20px;
    color: #00e5ff;
}

.hero-content p {
    font-size: 18px;
    margin-bottom: 40px;
    color: #b0b0b0;
}

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

.breadcrumb {
    background-color: #0f0f20;
    padding: 15px 0;
    border-bottom: 1px solid #1a1a30;
}

.breadcrumb ul {
    display: flex;
    list-style: none;
}

.breadcrumb ul li {
    margin-right: 10px;
}

.breadcrumb ul li::after {
    content: ">";
    margin-left: 10px;
    color: #666;
}

.breadcrumb ul li:last-child::after {
    display: none;
}

.breadcrumb ul li a {
    color: #00e5ff;
    text-decoration: none;
}

.breadcrumb ul li.active {
    color: #b0b0b0;
}

.features {
    padding: 80px 0;
    background-color: #0a0a14;
}

.features h2 {
    text-align: center;
    font-size: 36px;
    margin-bottom: 60px;
    color: #00e5ff;
}

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

.feature-item {
    background-color: #0f0f20;
    padding: 30px;
    border-radius: 8px;
    border: 1px solid #1a1a30;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.feature-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 20px rgba(0, 229, 255, 0.1);
}

.feature-item h3 {
    font-size: 20px;
    margin-bottom: 15px;
    color: #00e5ff;
}

.feature-item p {
    color: #b0b0b0;
}

.products-preview {
    padding: 80px 0;
    background-color: #0f0f20;
}

.products-preview h2 {
    text-align: center;
    font-size: 36px;
    margin-bottom: 60px;
    color: #00e5ff;
}

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

.product-item {
    background-color: #0a0a14;
    padding: 30px;
    border-radius: 8px;
    border: 1px solid #1a1a30;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.product-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 20px rgba(0, 229, 255, 0.1);
}

.product-item h3 {
    font-size: 20px;
    margin-bottom: 15px;
    color: #00e5ff;
}

.product-item p {
    color: #b0b0b0;
    margin-bottom: 20px;
}

.news-preview {
    padding: 80px 0;
    background-color: #0a0a14;
}

.news-preview h2 {
    text-align: center;
    font-size: 36px;
    margin-bottom: 60px;
    color: #00e5ff;
}

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

.news-item {
    background-color: #0f0f20;
    padding: 30px;
    border-radius: 8px;
    border: 1px solid #1a1a30;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.news-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 20px rgba(0, 229, 255, 0.1);
}

.news-item h3 {
    font-size: 18px;
    margin-bottom: 10px;
}

.news-item h3 a {
    color: #00e5ff;
    text-decoration: none;
}

.news-item h3 a:hover {
    text-decoration: underline;
}

.news-date {
    color: #666;
    font-size: 14px;
    margin-bottom: 15px;
}

.news-item p {
    color: #b0b0b0;
}

.news-more {
    text-align: center;
}

.testimonials {
    padding: 80px 0;
    background-color: #0f0f20;
}

.testimonials h2 {
    text-align: center;
    font-size: 36px;
    margin-bottom: 60px;
    color: #00e5ff;
}

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

.testimonial-item {
    background-color: #0a0a14;
    padding: 30px;
    border-radius: 8px;
    border: 1px solid #1a1a30;
    text-align: center;
}

.testimonial-item p {
    color: #b0b0b0;
    margin-bottom: 20px;
    font-style: italic;
}

.testimonial-author {
    color: #00e5ff !important;
    font-style: normal !important;
    font-weight: bold;
}

.cta {
    padding: 100px 0;
    background: linear-gradient(135deg, #0f0f20 0%, #1a1a30 100%);
    text-align: center;
}

.cta h2 {
    font-size: 36px;
    margin-bottom: 20px;
    color: #00e5ff;
}

.cta p {
    font-size: 18px;
    margin-bottom: 40px;
    color: #b0b0b0;
}

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

.footer {
    background-color: #0f0f20;
    padding: 60px 0;
    border-top: 1px solid #1a1a30;
}

.footer-top {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-logo a {
    color: #00e5ff;
    font-size: 24px;
    font-weight: bold;
    text-decoration: none;
}

.footer-links h4 {
    font-size: 16px;
    margin-bottom: 20px;
    color: #00e5ff;
}

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

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

.footer-links ul li a {
    color: #b0b0b0;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-links ul li a:hover {
    color: #00e5ff;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 20px;
    border-top: 1px solid #1a1a30;
}

.footer-bottom p {
    color: #666;
}

.footer-social a {
    color: #b0b0b0;
    text-decoration: none;
    margin-left: 20px;
    transition: color 0.3s ease;
}

.footer-social a:hover {
    color: #00e5ff;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .header-top {
        flex-direction: column;
        gap: 20px;
    }
    
    .nav ul {
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .nav ul li {
        margin: 0 10px;
    }
    
    .hero-content h1 {
        font-size: 36px;
    }
    
    .hero-buttons,
    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 20px;
        text-align: center;
    }
    
    .footer-social a {
        margin: 0 10px;
    }
}

@media (max-width: 480px) {
    .hero-content h1 {
        font-size: 28px;
    }
    
    .features h2,
    .products-preview h2,
    .news-preview h2,
    .testimonials h2,
    .cta h2 {
        font-size: 24px;
    }
    
    .feature-item,
    .product-item,
    .news-item,
    .testimonial-item {
        padding: 20px;
    }
}