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

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

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

.header {
    background: #fff;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
}

.logo h1 {
    color: #0066cc;
    font-size: 24px;
}

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

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

.nav-list a:hover,
.nav-list a.active {
    color: #0066cc;
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 5px;
}

.mobile-menu-btn span {
    width: 25px;
    height: 3px;
    background: #333;
    transition: 0.3s;
}

.hero {
    background: linear-gradient(135deg, #0066cc 0%, #004499 100%);
    color: #fff;
    padding: 150px 0 100px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.slider {
    position: relative;
    width: 100%;
    height: 350px;
    overflow: hidden;
}

.slider-container {
    position: relative;
    width: 100%;
    height: 100%;
}

.slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 0.5s ease-in-out;
    display: flex;
    align-items: center;
    justify-content: center;
}

.slide.active {
    opacity: 1;
}

.slide-content {
    text-align: center;
    max-width: 800px;
    padding: 0 20px;
}

.slide-content h2 {
    font-size: 48px;
    margin-bottom: 20px;
}

.slide-content p {
    font-size: 20px;
    margin-bottom: 30px;
    opacity: 0.9;
}

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

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.5);
    cursor: pointer;
    transition: all 0.3s;
}

.dot.active {
    background: #fff;
    transform: scale(1.2);
}

.slider-arrows {
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    transform: translateY(-50%);
    display: flex;
    justify-content: space-between;
    padding: 0 20px;
    z-index: 10;
}

.slider-arrow {
    background: rgba(255, 255, 255, 0.3);
    border: none;
    color: #fff;
    font-size: 30px;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    cursor: pointer;
    transition: all 0.3s;
    display: flex;
    align-items: center;
    justify-content: center;
}

.slider-arrow:hover {
    background: rgba(255, 255, 255, 0.5);
}

.hero-content h2 {
    font-size: 48px;
    margin-bottom: 20px;
}

.hero-content p {
    font-size: 20px;
    margin-bottom: 30px;
    opacity: 0.9;
}

.btn {
    display: inline-block;
    padding: 12px 30px;
    text-decoration: none;
    border-radius: 5px;
    font-weight: 500;
    transition: all 0.3s;
    border: none;
    cursor: pointer;
    font-size: 16px;
}

.btn-primary {
    background: #fff;
    color: #0066cc;
}

.btn-primary:hover {
    background: #f0f0f0;
    transform: translateY(-2px);
}

.btn-secondary {
    background: #0066cc;
    color: #fff;
    border: 2px solid #0066cc;
}

.btn-secondary:hover {
    background: transparent;
    color: #0066cc;
}

section {
    padding: 80px 0;
}

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

.section-header h2 {
    font-size: 36px;
    color: #0066cc;
    margin-bottom: 10px;
}

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

.about-section {
    background: #f9f9f9;
}

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

.about-text p {
    margin-bottom: 20px;
    color: #555;
}

.about-image .company-image {
    width: 100%;
    height: 300px;
    object-fit: cover;
    border-radius: 10px;
}

.services-section {
    background: #fff;
}

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

.service-card {
    background: #f9f9f9;
    padding: 40px 30px;
    text-align: center;
    border-radius: 10px;
    transition: all 0.3s;
}

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

.service-icon {
    font-size: 48px;
    margin-bottom: 20px;
}

.service-card h3 {
    color: #0066cc;
    margin-bottom: 15px;
    font-size: 22px;
}

.service-card p {
    color: #666;
}

.advantages-section {
    background: #f9f9f9;
}

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

.advantage-item {
    text-align: center;
    padding: 30px;
}

.advantage-number {
    font-size: 48px;
    font-weight: bold;
    color: #0066cc;
    opacity: 0.3;
    margin-bottom: 10px;
}

.advantage-item h3 {
    color: #0066cc;
    margin-bottom: 15px;
    font-size: 22px;
}

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

.contact-section {
    background: #fff;
}

.contact-content {
    display: flex;
    justify-content: center;
}

.contact-info {
    display: flex;
    flex-direction: row;
    gap: 30px;
    justify-content: center;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 15px;
    min-width: 200px;
}

.contact-icon {
    font-size: 32px;
}

.contact-item h4 {
    color: #0066cc;
    margin-bottom: 5px;
    font-size: 18px;
}

.contact-item p {
    color: #666;
    white-space: nowrap;
}

.footer {
    background: #1a1a1a;
    color: #fff;
    padding: 60px 0 20px;
}

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

.footer-section h3,
.footer-section h4 {
    margin-bottom: 20px;
    color: #0066cc;
}

.footer-section p {
    color: #999;
}

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

.footer-section ul li {
    margin-bottom: 10px;
    color: #999;
}

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

.footer-section ul li a:hover {
    color: #0066cc;
}

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

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

@media (max-width: 768px) {
    .nav-list {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: #fff;
        padding: 20px;
        box-shadow: 0 5px 10px rgba(0, 0, 0, 0.1);
    }

    .nav-list.active {
        display: flex;
    }

    .mobile-menu-btn {
        display: flex;
    }

    .hero-content h2 {
        font-size: 32px;
    }

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

    .about-content,
    .contact-content {
        grid-template-columns: 1fr;
    }

    .section-header h2 {
        font-size: 28px;
    }

    section {
        padding: 50px 0;
    }
}

@media (max-width: 480px) {
    .hero-content h2 {
        font-size: 24px;
    }

    .services-grid,
    .advantages-grid {
        grid-template-columns: 1fr;
    }
}

.page-header {
    background: linear-gradient(135deg, #0066cc 0%, #004499 100%);
    color: #fff;
    padding: 150px 0 80px;
    text-align: center;
}

.page-header h1 {
    font-size: 48px;
    margin-bottom: 15px;
}

.page-header p {
    font-size: 20px;
    opacity: 0.9;
}

.company-intro {
    background: #fff;
}

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

.intro-content p {
    font-size: 16px;
    line-height: 2;
    color: #555;
    margin-bottom: 20px;
    text-align: justify;
}

.culture-section {
    background: #f9f9f9;
}

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

.culture-item {
    background: #fff;
    padding: 40px 30px;
    text-align: center;
    border-radius: 10px;
    transition: all 0.3s;
}

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

.culture-icon {
    font-size: 48px;
    margin-bottom: 20px;
}

.culture-item h3 {
    color: #0066cc;
    margin-bottom: 15px;
    font-size: 22px;
}

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

.history-section {
    background: #fff;
}

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

.timeline-item {
    display: flex;
    gap: 30px;
    margin-bottom: 40px;
    align-items: flex-start;
}

.timeline-year {
    background: #0066cc;
    color: #fff;
    padding: 15px 25px;
    border-radius: 5px;
    font-weight: bold;
    font-size: 20px;
    min-width: 120px;
    text-align: center;
}

.timeline-content h3 {
    color: #0066cc;
    margin-bottom: 10px;
    font-size: 20px;
}

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

.team-section {
    background: #f9f9f9;
}

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

.team-card {
    background: #fff;
    padding: 40px 30px;
    text-align: center;
    border-radius: 10px;
    transition: all 0.3s;
}

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

.team-avatar {
    background: linear-gradient(135deg, #0066cc 0%, #004499 100%);
    color: #fff;
    width: 100px;
    height: 100px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    font-weight: bold;
    margin: 0 auto 20px;
}

.team-card h3 {
    color: #0066cc;
    margin-bottom: 15px;
    font-size: 20px;
}

.team-card p {
    color: #666;
}

@media (max-width: 768px) {
    .page-header h1 {
        font-size: 32px;
    }

    .page-header p {
        font-size: 16px;
    }

    .timeline-item {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }

    .timeline-year {
        min-width: auto;
    }
}

.products-intro {
    background: #fff;
}

.products-detail {
    background: #f9f9f9;
}

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

.product-card {
    background: #fff;
    padding: 40px 30px;
    border-radius: 10px;
    transition: all 0.3s;
}

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

.product-icon {
    font-size: 48px;
    margin-bottom: 20px;
}

.product-card h3 {
    color: #0066cc;
    margin-bottom: 15px;
    font-size: 22px;
}

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

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

.product-card ul li {
    padding: 8px 0;
    color: #555;
    padding-left: 20px;
    position: relative;
}

.product-card ul li:before {
    content: "✓";
    position: absolute;
    left: 0;
    color: #0066cc;
    font-weight: bold;
}

.tech-advantages {
    background: #fff;
}

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

.tech-item {
    text-align: center;
    padding: 30px;
}

.tech-number {
    font-size: 48px;
    font-weight: bold;
    color: #0066cc;
    opacity: 0.3;
    margin-bottom: 10px;
}

.tech-item h3 {
    color: #0066cc;
    margin-bottom: 15px;
    font-size: 22px;
}

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

.cta-section {
    background: linear-gradient(135deg, #0066cc 0%, #004499 100%);
    color: #fff;
    text-align: center;
}

.cta-content h2 {
    font-size: 36px;
    margin-bottom: 15px;
}

.cta-content p {
    font-size: 18px;
    margin-bottom: 30px;
    opacity: 0.9;
}

.cta-section .btn-primary {
    background: #fff;
    color: #0066cc;
}

.cta-section .btn-primary:hover {
    background: #f0f0f0;
}

@media (max-width: 768px) {
    .products-grid {
        grid-template-columns: 1fr;
    }

    .cta-content h2 {
        font-size: 28px;
    }
}

.contact-main {
    background: #fff;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
}

.contact-info-section {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.info-card {
    background: #f9f9f9;
    padding: 30px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    gap: 20px;
    transition: all 0.3s;
}

.info-card:hover {
    transform: translateX(10px);
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
}

.info-icon {
    font-size: 40px;
    flex-shrink: 0;
}

.info-card h3 {
    color: #0066cc;
    margin-bottom: 5px;
    font-size: 18px;
}

.info-card p {
    color: #666;
}

.contact-form-section {
    background: #f9f9f9;
    padding: 40px;
    border-radius: 10px;
}

.form-card h3 {
    color: #0066cc;
    margin-bottom: 10px;
    font-size: 24px;
}

.form-card > p {
    color: #666;
    margin-bottom: 30px;
}

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

.map-section {
    background: #f9f9f9;
}

.map-container {
    max-width: 1000px;
    margin: 0 auto;
}

.map-placeholder {
    background: #ddd;
    height: 400px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    border-radius: 10px;
    color: #666;
}

.map-placeholder span {
    font-size: 24px;
    margin-bottom: 10px;
}

.map-placeholder p {
    font-size: 16px;
}

.faq-section {
    background: #fff;
}

.faq-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 30px;
}

.faq-item {
    background: #f9f9f9;
    padding: 30px;
    border-radius: 10px;
    transition: all 0.3s;
}

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

.faq-item h3 {
    color: #0066cc;
    margin-bottom: 15px;
    font-size: 18px;
}

.faq-item p {
    color: #666;
    line-height: 1.8;
}

@media (max-width: 768px) {
    .contact-grid {
        grid-template-columns: 1fr;
    }

    .contact-form-section {
        padding: 30px 20px;
    }

    .faq-grid {
        grid-template-columns: 1fr;
    }

    .map-placeholder {
        height: 300px;
    }
}