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

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

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

/* 导航栏样式 */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    z-index: 1000;
    transition: all 0.3s ease;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 15px;
}

.logo img {
    height: 50px;
}

.logo-text {
    font-size: 1.2rem;
    font-weight: 500;
    color: #1e3c72;
    line-height: 1.3;
}

.logo-text .company-name {
    font-size: 1.2rem;
    font-weight: bold;
}

.logo-text .sub-text {
    font-size: 0.9rem;
    color: #666;
}

.nav-links {
    display: flex;
    gap: 30px;
    align-items: center;
}

.nav-links a {
    color: #333;
    text-decoration: none;
    font-size: 16px;
    transition: color 0.3s ease;
    display: flex;
    align-items: center;
    height: 40px;
}

.nav-links a:hover,
.nav-links a.active {
    color: #1e3c72;
}

.nav-links .lang-switch {
    padding: 0 16px;
    border: 2px solid #1e3c72;
    border-radius: 20px;
    color: #1e3c72;
    font-weight: 500;
    position: relative;
    overflow: hidden;
    z-index: 1;
    transition: all 0.3s ease;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.nav-links .lang-switch::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 0;
    height: 100%;
    background: #1e3c72;
    z-index: -1;
    transition: width 0.3s ease;
}

.nav-links .lang-switch:hover {
    color: white;
}

.nav-links .lang-switch:hover::before {
    width: 100%;
}

.mobile-menu {
    display: none;
    flex-direction: column;
    gap: 6px;
    cursor: pointer;
}

.mobile-menu span {
    width: 30px;
    height: 3px;
    background: #333;
    transition: all 0.3s ease;
}

/* Banner样式 */
.banner-section {
    height: 100vh;
    margin-top: 80px;
    position: relative;
}

.banner-swiper {
    height: 100%;
    width: 100%;
}

.swiper-slide {
    background-size: cover;
    background-position: center;
    position: relative;
    overflow: hidden;
}

.swiper-slide::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to bottom, rgba(0,0,0,0.5), rgba(0,0,0,0.3));
    z-index: 1;
}

.banner-content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 100%;
    max-width: 1200px;
    text-align: center;
    color: white;
    z-index: 2;
    padding: 0 20px;
}

.banner-content h1 {
    font-size: 3.5rem;
    font-weight: bold;
    margin-bottom: 20px;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
    line-height: 1.2;
}

.banner-content p {
    font-size: 1.5rem;
    margin-top: 20px;
    text-shadow: 1px 1px 2px rgba(0,0,0,0.5);
    line-height: 1.4;
}

/* Swiper导航按钮样式 */
.swiper-button-next,
.swiper-button-prev {
    color: white;
    background: rgba(0,0,0,0.3);
    width: 50px;
    height: 50px;
    border-radius: 50%;
    transition: all 0.3s ease;
}

.swiper-button-next:hover,
.swiper-button-prev:hover {
    background: rgba(0,0,0,0.5);
}

.swiper-button-next::after,
.swiper-button-prev::after {
    font-size: 24px;
}

.swiper-pagination-bullet {
    width: 12px;
    height: 12px;
    background: rgba(255,255,255,0.8);
    opacity: 0.5;
}

.swiper-pagination-bullet-active {
    opacity: 1;
    background: white;
}

/* 服务部分样式 */
.service-section {
    padding: 100px 0;
    background: #f8f9fa;
}

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

.section-header h2 {
    font-size: 2.5rem;
    color: #1e3c72;
    margin-bottom: 15px;
}

.section-header p {
    color: #666;
    font-size: 1.1rem;
}

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

.service-item {
    background: #fff;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
    text-align: center;
    transition: transform 0.3s ease;
}

.service-item:hover {
    transform: translateY(-10px);
}

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

.service-icon img {
    width: 60px;
    height: 60px;
}

.service-item h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: #1e3c72;
}

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

/* 解决方案样式优化 */
.solution-section {
    padding: 100px 0;
    background: #fff;
}

.solution-content {
    display: flex;
    gap: 50px;
    align-items: stretch;
    min-height: 500px;
}

.left-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 20px;
    justify-content: space-between;
}

.right-content {
    flex: 1.2;
    display: flex;
    align-items: stretch;
}

.solution-item {
    padding: 30px;
    cursor: pointer;
    transition: all 0.3s ease;
    border-radius: 8px;
    background: #f8f9fa;
    border-left: 4px solid transparent;
    height: calc(33.33% - 14px);
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.solution-item:hover,
.solution-item.active {
    background: #fff;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    border-left: 4px solid #1e3c72;
    transform: translateX(10px);
}

.solution-item h3 {
    font-size: 1.6rem;
    margin-bottom: 15px;
    color: #1e3c72;
    display: flex;
    align-items: center;
    line-height: 1.3;
}

.solution-item p {
    color: #666;
    line-height: 1.6;
    font-size: 1rem;
}

.image-container {
    position: relative;
    width: 100%;
    overflow: hidden;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.image-container img {
    position: absolute;
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0;
    transition: opacity 0.5s ease, transform 0.5s ease;
    transform: scale(1.1);
}

.image-container img.active {
    opacity: 1;
    transform: scale(1);
}

/* 联系我们样式 */
.contact-section {
    padding: 100px 0;
    background: #f8f9fa;
}

.contact-info {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.info-item {
    text-align: center;
    padding: 30px;
    background: #fff;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
}

.info-item .icon {
    font-size: 2.5rem;
    margin-bottom: 20px;
}

.info-item h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: #1e3c72;
}

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

/* 页脚样式 */
.footer {
    background: #1e3c72;
    color: white;
    padding: 20px 0;
    text-align: center;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    
    .mobile-menu {
        display: flex;
    }
    
    .banner-content h1 {
        font-size: 2.5rem;
    }
    
    .service-grid {
        grid-template-columns: 1fr;
    }
    
    .solution-content {
        flex-direction: column;
        min-height: auto;
    }
    
    .solution-item {
        height: auto;
        margin-bottom: 15px;
    }
    
    .image-container {
        height: 300px;
        margin-top: 20px;
    }
    
    .contact-info {
        grid-template-columns: 1fr;
    }
    
    .nav-links .lang-switch {
        margin-top: 10px;
        text-align: center;
        display: inline-block;
    }
}

@media (min-width: 769px) {
    .image-container {
        height: 100%;
        min-height: 500px;
    }
}

@media (max-width: 1024px) {
    .logo-text {
        display: none;
    }
}

/* 产品介绍部分样式 */
.products-section {
    padding: 100px 0;
    background: #f8f9fa;
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 25px;
    margin-top: 50px;
}

.product-card {
    background: #fff;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 8px 25px rgba(0,0,0,0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.product-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 35px rgba(30, 60, 114, 0.15);
}

.product-image {
    width: 100%;
    height: 220px;
    overflow: hidden;
    position: relative;
}

.product-image::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 50%;
    background: linear-gradient(to top, rgba(0,0,0,0.3), transparent);
    z-index: 1;
}

.product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.product-card:hover .product-image img {
    transform: scale(1.05);
}

.product-info {
    padding: 25px;
    background: #fff;
}

.product-info h3 {
    color: #1e3c72;
    font-size: 1.5rem;
    margin-bottom: 15px;
    font-weight: 600;
}

.product-info p {
    color: #666;
    font-size: 1rem;
    line-height: 1.6;
}

@media (max-width: 1200px) {
    .products-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
}

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

    .product-image {
        height: 200px;
    }

    .product-info {
        padding: 20px;
    }

    .product-info h3 {
        font-size: 1.4rem;
    }
}

/* 关于我们页面样式 */
.page-header {
    background: #f5f5f5;
    padding: 120px 0 60px;
    text-align: center;
    margin-top: 0;
}

.page-header h1 {
    font-size: 36px;
    color: #333;
    margin-bottom: 0;
}

.breadcrumb {
    display: none;
}

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

.about-content {
    display: flex;
    align-items: center;
    gap: 50px;
}

.about-text {
    flex: 1;
}

.about-text h2 {
    font-size: 28px;
    color: #333;
    margin-bottom: 20px;
}

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

.about-image {
    flex: 1;
}

.about-image img {
    width: 100%;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.location-section {
    padding: 80px 0;
    background: #f9f9f9;
}

.location-content {
    display: flex;
    gap: 40px;
    margin-top: 40px;
}

.map-container {
    flex: 2;
    height: 400px;
    background: #eee;
    border-radius: 8px;
    overflow: hidden;
}

.map-container .address-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.address-info {
    flex: 1;
}

.address-info h3 {
    font-size: 20px;
    color: #333;
    margin-bottom: 20px;
}

.address-info ul {
    list-style: none;
    padding: 0;
}

.address-info li {
    color: #666;
    margin-bottom: 10px;
    padding-left: 20px;
    position: relative;
}

.address-info li:before {
    content: "•";
    position: absolute;
    left: 0;
    color: #007bff;
}

.contact-info-section {
    padding: 80px 0;
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
    margin-top: 40px;
}

.contact-item {
    text-align: center;
    padding: 30px;
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.05);
    transition: transform 0.3s ease;
}

.contact-item:hover {
    transform: translateY(-5px);
}

.contact-item .icon {
    font-size: 36px;
    margin-bottom: 15px;
}

.contact-item h3 {
    font-size: 20px;
    color: #333;
    margin-bottom: 10px;
}

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

@media (max-width: 768px) {
    .about-content {
        flex-direction: column;
    }
    
    .location-content {
        flex-direction: column;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
    }
}

/* 产品系列页面样式 */
.product-series-section {
    padding: 80px 0;
    background: #f8f9fa;
}

.product-series-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-top: 50px;
}

.series-card {
    background: #fff;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 8px 25px rgba(0,0,0,0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.series-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 35px rgba(30, 60, 114, 0.15);
}

.series-image {
    width: 100%;
    height: 250px;
    overflow: hidden;
    position: relative;
}

.series-image::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 50%;
    background: linear-gradient(to top, rgba(0,0,0,0.3), transparent);
    z-index: 1;
}

.series-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.series-card:hover .series-image img {
    transform: scale(1.05);
}

.series-info {
    padding: 30px;
    background: #fff;
}

.series-info h3 {
    color: #1e3c72;
    font-size: 1.8rem;
    margin-bottom: 15px;
    font-weight: 600;
}

.series-info p {
    color: #666;
    font-size: 1.1rem;
    line-height: 1.6;
    margin-bottom: 20px;
}

.series-products {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.product-link {
    display: inline-block;
    padding: 10px 20px;
    background: #f8f9fa;
    color: #1e3c72;
    text-decoration: none;
    border-radius: 5px;
    transition: all 0.3s ease;
    font-weight: 500;
}

.product-link:hover {
    background: #1e3c72;
    color: #fff;
}

@media (max-width: 1200px) {
    .product-series-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

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

    .series-image {
        height: 200px;
    }

    .series-info {
        padding: 20px;
    }

    .series-info h3 {
        font-size: 1.6rem;
    }
}

/* 产品详情页面样式 */
.product-detail-section {
    padding: 80px 0;
    background: #f8f9fa;
}

.product-detail-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    background: #fff;
    padding: 40px;
    border-radius: 15px;
    box-shadow: 0 8px 25px rgba(0,0,0,0.1);
}

.product-gallery {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.main-image {
    width: 100%;
    height: 400px;
    border-radius: 10px;
    overflow: hidden;
}

.main-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.thumbnail-list {
    display: flex;
    gap: 15px;
}

.thumbnail {
    width: 80px;
    height: 80px;
    border-radius: 8px;
    cursor: pointer;
    opacity: 0.6;
    transition: all 0.3s ease;
}

.thumbnail:hover,
.thumbnail.active {
    opacity: 1;
}

.thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 8px;
}

.product-info {
    display: flex;
    flex-direction: column;
    gap: 10px;
    /* min-height: 280px; */
}

.product-info h2 {
    font-size: 2rem;
    color: #1e3c72;
    margin-bottom: 20px;
}

.product-description {
    color: #666;
    line-height: 1.8;
    font-size: 1.1rem;
}

.product-specs h3,
.product-features h3 {
    font-size: 1.5rem;
    color: #1e3c72;
    margin-bottom: 20px;
}

.specs-table {
    width: 100%;
    border-collapse: collapse;
}

.specs-table tr {
    border-bottom: 1px solid #eee;
}

.specs-table td {
    padding: 12px 0;
    color: #666;
}

.specs-table td:first-child {
    width: 40%;
    font-weight: 500;
    color: #333;
}

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

.product-features li {
    color: #666;
    margin-bottom: 15px;
    padding-left: 25px;
    position: relative;
}

.product-features li:before {
    content: "•";
    position: absolute;
    left: 0;
    color: #1e3c72;
    font-size: 1.2rem;
}

@media (max-width: 992px) {
    .product-detail-content {
        grid-template-columns: 1fr;
    }

    .main-image {
        height: 300px;
    }
}

@media (max-width: 768px) {
    .product-detail-content {
        padding: 20px;
    }

    .product-info h2 {
        font-size: 1.8rem;
    }

    .thumbnail {
        width: 60px;
        height: 60px;
    }
} 

.nav-dropdown {
    position: relative;
    display: inline-block;
    padding-bottom: 20px;
    margin-top: 18px;
}
.dropdown-menu {
    display: none;
    position: absolute;
    left: 50%;
    top: 100%;
    transform: translateX(-50%);
    background: #fff;
    border: 2px solid #1e3c72;
    border-radius: 10px;
    box-shadow: 0 4px 24px rgba(0,0,0,0.08);
    padding: 24px 32px;
    min-width: 900px;
    z-index: 100;
    gap: 40px;
    transition: opacity 0.2s, visibility 0.2s;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}
.nav-dropdown:hover .dropdown-menu,
.nav-dropdown .cpzx:focus + .dropdown-menu,
.nav-dropdown .dropdown-menu:hover {
    display: flex;
    opacity: 1;
    visibility: visible;
    top: 100%;
    pointer-events: auto;
}
.dropdown-menu {
    display: flex;
}
.dropdown-col {
    min-width: 200px;
    border-right: 1px solid #eee;
    padding-right: 32px;
}
.dropdown-col:last-child {
    border-right: none;
    padding-right: 0;
}
.dropdown-title {
    font-weight: bold;
    font-size: 18px;
    margin-bottom: 16px;
    border-bottom: 1px solid #eee;
    padding-bottom: 8px;
}
.dropdown-col a {
    display: block;
    color: #555;
    font-size: 15px;
    margin: 10px 0;
    text-decoration: none;
    transition: color 0.2s;
}
.dropdown-col a:hover {
    color: #1e3c72;
}

.cpzx{
    cursor: pointer;
    display: flex;
    align-items: center;
    height: 40px;
}

.features-list {
    margin-top: 32px;
}
.feature-item {
    display: flex;
    align-items: flex-start;
    gap: 32px;
    margin-bottom: 48px;
}
.feature-icon img {
    width: 56px;
    height: 56px;
    object-fit: contain;
}
.feature-content {
    flex: 1;
}
.feature-title {
    font-size: 24px;
    font-weight: bold;
    color: #1a2733;
    margin-bottom: 8px;
}
.feature-desc {
    color: #444;
    font-size: 18px;
    line-height: 1.8;
}