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

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

header {
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    color: white;
    padding: 1rem 5%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 2px 10px rgba(0,0,0,0.3);
}

.logo h1 {
    font-size: 1.8rem;
    font-weight: 700;
    letter-spacing: 2px;
}

nav ul {
    display: flex;
    list-style: none;
    gap: 2rem;
}

nav a {
    color: white;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s;
}

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

.hero {
    background: url('https://trae-api-cn.mchost.guru/api/ide/v1/text_to_image?prompt=modern%20computer%20technology%20background%20with%20blue%20lights&image_size=landscape_16_9') no-repeat center center/cover;
    height: 500px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: white;
    position: relative;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.6);
}

.hero-content {
    position: relative;
    z-index: 1;
}

.hero h2 {
    font-size: 3rem;
    margin-bottom: 0.5rem;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
}

.hero-subtitle {
    font-size: 1rem !important;
    color: #ddd !important;
    margin-bottom: 2rem !important;
}

.btn {
    display: inline-block;
    padding: 12px 30px;
    background: linear-gradient(90deg, #00d4ff, #0099cc);
    color: white;
    text-decoration: none;
    border-radius: 30px;
    font-weight: 600;
    transition: transform 0.3s, box-shadow 0.3s;
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 20px rgba(0,212,255,0.4);
}

.btn.secondary {
    background: transparent;
    border: 2px solid white;
    margin-left: 1rem;
}

.btn.secondary:hover {
    background: white;
    color: #16213e;
}

.features {
    display: flex;
    justify-content: center;
    gap: 5rem;
    padding: 4rem 5%;
    background: #f8f9fa;
}

.feature-item {
    text-align: center;
    max-width: 250px;
}

.feature-item h3 {
    color: #16213e;
    margin-bottom: 0.5rem;
    font-size: 1.3rem;
}

.about-preview {
    padding: 3rem 5%;
    background: white;
}

.about-preview h3 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    color: #16213e;
    text-align: center;
}

.about-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
}

.about-item {
    text-align: center;
    padding: 1.5rem;
    background: #f8f9fa;
    border-radius: 10px;
}

.about-item .number {
    font-size: 2.5rem;
    font-weight: 700;
    color: #00d4ff;
    display: block;
    margin-bottom: 0.5rem;
}

.about-item p {
    color: #666;
}

.news-preview {
    padding: 3rem 5%;
    background: #f8f9fa;
}

.news-preview h3 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    color: #16213e;
    text-align: center;
}

.news-items {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
}

.news-items article {
    background: white;
    padding: 1.5rem;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

.news-items article h4 {
    color: #16213e;
    margin-bottom: 0.5rem;
}

.news-items article p {
    color: #666;
    font-size: 0.9rem;
}

.page-title {
    padding: 2rem 5%;
    text-align: center;
    background: #f8f9fa;
}

.page-title h2 {
    font-size: 2rem;
    color: #16213e;
    margin-bottom: 0.5rem;
}

.page-title p {
    color: #666;
}

.products {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    padding: 3rem 5%;
}

.product-card {
    background: white;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 2px 15px rgba(0,0,0,0.05);
}

.product-card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.product-card h3 {
    padding: 1rem 1.2rem 0;
    color: #16213e;
    margin-bottom: 0.5rem;
}

.product-card p {
    padding: 0 1.2rem;
    color: #666;
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.product-card .specs {
    list-style: none;
    padding: 0 1.2rem;
    margin-bottom: 1rem;
}

.product-card .specs li {
    color: #999;
    font-size: 0.85rem;
    padding: 0.3rem 0;
}

.product-card .price {
    display: block;
    padding: 0 1.2rem;
    font-size: 1.3rem;
    font-weight: 700;
    color: #e74c3c;
    margin-bottom: 1rem;
}

.product-card .btn {
    margin: 0 1.2rem 1.2rem;
    width: calc(100% - 2.4rem);
    text-align: center;
}

.solutions {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    padding: 3rem 5%;
}

.solution-item {
    background: white;
    border-radius: 15px;
    padding: 2rem;
    box-shadow: 0 2px 15px rgba(0,0,0,0.05);
}

.solution-item h3 {
    color: #16213e;
    margin-bottom: 1rem;
}

.solution-item p {
    color: #666;
    margin-bottom: 1rem;
}

.solution-item .description {
    color: #999;
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.solution-item ul {
    list-style: none;
    padding-left: 0;
}

.solution-item ul li {
    padding: 0.5rem 0;
    color: #666;
    font-size: 0.95rem;
    position: relative;
    padding-left: 1.2rem;
}

.solution-item ul li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: #00d4ff;
    font-weight: bold;
}

.about-content {
    padding: 3rem 5%;
    max-width: 1000px;
    margin: 0 auto;
}

.about-content h3 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    color: #16213e;
}

.about-content p {
    color: #666;
    line-height: 1.8;
    margin-bottom: 1.5rem;
}

.timeline {
    position: relative;
    padding-left: 40px;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 15px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: #00d4ff;
}

.timeline-item {
    position: relative;
    padding: 1.5rem;
    background: #f8f9fa;
    margin-bottom: 1.5rem;
    border-radius: 10px;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: -31px;
    top: 50%;
    transform: translateY(-50%);
    width: 14px;
    height: 14px;
    background: #00d4ff;
    border-radius: 50%;
    border: 4px solid white;
    box-shadow: 0 0 0 2px rgba(0,212,255,0.2);
}

.timeline-item .year {
    font-weight: 700;
    color: #16213e;
    margin-bottom: 0.5rem;
    display: block;
}

.timeline-item p {
    color: #666;
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
    margin-top: 1.5rem;
}

.value-item {
    text-align: center;
    background: #f8f9fa;
    padding: 2rem;
    border-radius: 10px;
}

.value-item .icon {
    font-size: 2rem;
    color: #00d4ff;
    margin-bottom: 0.5rem;
}

.value-item h4 {
    color: #16213e;
    margin-bottom: 0.5rem;
}

.value-item p {
    color: #999;
    font-size: 0.9rem;
}

.news-list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    padding: 3rem 5%;
}

.news-item {
    background: white;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 2px 15px rgba(0,0,0,0.05);
}

.news-item img {
    width: 100%;
    height: 180px;
    object-fit: cover;
}

.news-content {
    padding: 1.2rem;
}

.news-content .category {
    display: inline-block;
    background: #00d4ff;
    color: white;
    padding: 3px 10px;
    border-radius: 5px;
    font-size: 0.8rem;
    margin-bottom: 0.5rem;
}

.news-content h3 {
    color: #16213e;
    margin-bottom: 0.5rem;
}

.news-content h3 a {
    color: #16213e;
    text-decoration: none;
}

.news-content p {
    color: #666;
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
}

.news-content .date {
    color: #999;
    font-size: 0.85rem;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    padding: 3rem 5%;
    max-width: 1000px;
    margin: 0 auto;
}

.contact-info {
    background: #f8f9fa;
    padding: 2rem;
    border-radius: 15px;
}

.contact-info h3 {
    font-size: 1.3rem;
    color: #16213e;
    margin-bottom: 1.5rem;
}

.contact-item {
    display: flex;
    gap: 1rem;
    margin-bottom: 1.5rem;
    align-items: flex-start;
}

.contact-item .icon {
    font-size: 1.5rem;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #00d4ff;
    color: white;
    border-radius: 50%;
}

.contact-item div p:first-child {
    color: #999;
    font-size: 0.9rem;
}

.contact-item div p:nth-child(2) {
    color: #16213e;
    font-weight: 600;
    margin: 0.3rem 0;
}

.contact-item div .sub {
    color: #999 !important;
    font-size: 0.85rem !important;
}

.contact-form {
    background: white;
    padding: 2rem;
    border-radius: 15px;
    box-shadow: 0 2px 15px rgba(0,0,0,0.05);
}

.contact-form h3 {
    font-size: 1.3rem;
    color: #16213e;
    margin-bottom: 1.5rem;
}

.contact-form input,
.contact-form select,
.contact-form textarea {
    width: 100%;
    padding: 0.8rem;
    margin-bottom: 1rem;
    border: 1px solid #ddd;
    border-radius: 8px;
    font-size: 1rem;
    outline: none;
    transition: border-color 0.3s;
}

.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
    border-color: #00d4ff;
}

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

.contact-form .btn {
    width: 100%;
    text-align: center;
}

.service-info {
    padding: 3rem 5%;
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    color: white;
}

.service-info h3 {
    font-size: 1.5rem;
    margin-bottom: 2rem;
    text-align: center;
}

.service-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
}

.service-item {
    text-align: center;
}

.service-item .number {
    font-size: 3rem;
    font-weight: 700;
    color: #00d4ff;
    display: block;
    margin-bottom: 0.5rem;
}

.service-item p {
    color: #999;
}

footer {
    background: #1a1a2e;
    color: white;
    text-align: center;
    padding: 2rem;
}

@media (max-width: 768px) {
    header {
        flex-direction: column;
        gap: 1rem;
    }
    
    nav ul {
        flex-wrap: wrap;
        justify-content: center;
        gap: 1rem;
    }
    
    .hero h2 {
        font-size: 2rem;
    }
    
    .features {
        flex-direction: column;
        align-items: center;
        gap: 2rem;
    }
    
    .about-grid, .news-items, .products, .solutions, .values-grid, .news-list, .contact-content, .service-grid {
        grid-template-columns: 1fr;
    }
    
    .timeline {
        padding-left: 25px;
    }
    
    .timeline::before {
        left: 8px;
    }
    
    .timeline-item::before {
        left: -18px;
    }
}