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

body {
    font-family: 'Arial', sans-serif;
    line-height: 1.6;
    background-color: #0a192f;
    color: #ffffff;
}

/* 导航栏样式 */
header {
    position: fixed;
    width: 100%;
    top: 0;
    background-color: rgba(10, 25, 47, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 5%;
    max-width: 1400px;
    margin: 0 auto;
}

.logo {
    font-size: 1.8rem;
    font-weight: bold;
    color: #64ffda;
}

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

.nav-links li {
    margin-left: 1.5rem;
}

.nav-links a {
    color: #ffffff;
    text-decoration: none;
    font-size: 1.1rem;
    transition: color 0.3s ease;
}

.nav-links a:hover {
    color: #64ffda;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo img {
    height: 40px;
    width: auto;
}

.company-name {
    display: flex;
    flex-direction: column;
}

.cn-name {
    font-size: 18px;
    font-weight: 500;
    color: #ffffff;
    line-height: 1.2;
}

.en-name {
    font-size: 12px;
    color: #d8d8d8;
    text-transform: uppercase;
}

/* 在nav-links相关样式后添加 */
.dropdown {
    position: relative;
}

.dropdown-content {
    display: none;
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    background-color: rgba(10, 25, 47, 0.95);
    min-width: 180px;
    box-shadow: 0 8px 16px rgba(0,0,0,0.2);
    backdrop-filter: blur(10px);
    border-radius: 4px;
    padding: 0.5rem 0;
    z-index: 1;
    border: 1px solid rgba(100, 255, 218, 0.1);
}

.dropdown-content a {
    color: #ffffff;
    padding: 0.8rem 1.5rem;
    display: block;
    font-size: 1rem;
    text-align: center;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.dropdown-content a:last-child {
    border-bottom: none;
}

.dropdown-content a:hover {
    background-color: rgba(100, 255, 218, 0.1);
    color: #64ffda;
}

/* 添加箭头指示器 */
.dropdown > a::after {
    content: '';
    display: inline-block;
    width: 0;
    height: 0;
    border-left: 5px solid transparent;
    border-right: 5px solid transparent;
    border-top: 5px solid #ffffff;
    margin-left: 8px;
    vertical-align: middle;
    transition: transform 0.3s ease;
}

.dropdown:hover > a::after {
    transform: rotate(180deg);
}

/* 优化动画效果 */
.dropdown:hover .dropdown-content {
    display: block;
    animation: fadeInMenu 0.3s ease;
}

@keyframes fadeInMenu {
    from {
        opacity: 0;
        transform: translateX(-50%) translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateX(-50%) translateY(0);
    }
}

/* 主页英雄区域样式 */
.hero {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 0 1rem;
    background: linear-gradient(rgba(10, 25, 47, 0.8), rgba(10, 25, 47, 0.8)),
                url('image/hero-bg.jpg') center/cover;
}

.hero-content h1 {
    font-size: 3.5rem;
    margin-bottom: 1rem;
}

.highlight {
    color: #64ffda;
}

.hero-content p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    color: #8892b0;
}

.cta-button {
    padding: 1rem 2rem;
    font-size: 1.1rem;
    background-color: transparent;
    border: 2px solid #64ffda;
    color: #64ffda;
    cursor: pointer;
    transition: all 0.3s ease;
}

.cta-button:hover {
    background-color: rgba(100, 255, 218, 0.1);
}

/* 关于我们部分样式 */
.about {
    padding: 8rem 5%;
    max-width: 1200px;
    margin: 0 auto;
}

.about h2 {
    font-size: 2.5rem;
    margin-bottom: 3rem;
    text-align: center;
    color: #64ffda;
}

.about-content {
    display: flex;
    justify-content: center;
    align-items: center;
}

.about-text {
    max-width: 800px;
    text-align: center;
}

.about-text p {
    margin-bottom: 1.5rem;
    color: #8892b0;
    font-size: 1.1rem;
}

/* 页脚样式 */
footer {
    text-align: center;
    padding: 2rem;
    background-color: rgba(10, 25, 47, 0.95);
    color: #8892b0;
}

/* 响应式设计 */
@media (max-width: 1200px) {
    .search-input {
        width: 150px;
    }
}

@media (max-width: 768px) {
    .hero-content h1 {
        font-size: 2.5rem;
    }
    
    .nav-links, .search-container {
        display: none;
    }
}

/* 替换原来的dropdown-content样式，添加新的mega-menu样式 */
.mega-menu {
    position: relative;
}

.mega-menu-content {
    display: none;
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    background-color: rgba(10, 25, 47, 0.95);
    backdrop-filter: blur(10px);
    border-radius: 4px;
    padding: 2rem;
    z-index: 1000;
    width: 800px;
    border: 1px solid rgba(100, 255, 218, 0.1);
    box-shadow: 0 8px 32px rgba(0,0,0,0.2);
}

.mega-menu:hover .mega-menu-content {
    display: flex;
    animation: fadeInMenu 0.3s ease;
}

.company-image {
    flex: 0 0 250px;
    margin-right: 2rem;
}

.company-image img {
    width: 100%;
    height: 300px;
    object-fit: cover;
    border-radius: 4px;
}

.menu-categories {
    flex: 1;
    display: flex;
    justify-content: space-between;
    gap: 2rem;
}

.menu-category {
    flex: 1;
}

.menu-category h3 {
    color: #64ffda;
    font-size: 1.1rem;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid rgba(100, 255, 218, 0.3);
}

.menu-category ul {
    list-style: none;
}

.menu-category ul li {
    margin: 0.8rem 0;
}

.menu-category ul li a {
    color: #ffffff;
    text-decoration: none;
    font-size: 0.95rem;
    transition: all 0.3s ease;
    display: block;
    padding: 0.3rem 0;
}

.menu-category ul li a:hover {
    color: #64ffda;
    padding-left: 0.5rem;
}

/* 箭头指示器 */
.mega-menu > a::after {
    content: '';
    display: inline-block;
    width: 0;
    height: 0;
    border-left: 5px solid transparent;
    border-right: 5px solid transparent;
    border-top: 5px solid #ffffff;
    margin-left: 8px;
    vertical-align: middle;
    transition: transform 0.3s ease;
}

.mega-menu:hover > a::after {
    transform: rotate(180deg);
}

@keyframes fadeInMenu {
    from {
        opacity: 0;
        transform: translateX(-50%) translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateX(-50%) translateY(0);
    }
}

/* 响应式设计 */
@media (max-width: 992px) {
    .mega-menu-content {
        width: 95vw;
        flex-direction: column;
    }
    
    .company-image {
        margin-right: 0;
        margin-bottom: 1rem;
    }
    
    .menu-categories {
        flex-direction: column;
    }
    
    .menu-category {
        margin-bottom: 1rem;
    }
}

/* 添加产品中心菜单样式 */
 .product-menu-content {
    display: none;
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    background-color: rgba(10, 25, 47, 0.95);
    backdrop-filter: blur(10px);
    border-radius: 4px;
    padding: 2rem;
    z-index: 1000;
    width: 1000px;
    border: 1px solid rgba(100, 255, 218, 0.1);
    box-shadow: 0 8px 32px rgba(0,0,0,0.2);
}

.product-menu:hover .product-menu-content {
    display: flex;
    flex-wrap: wrap;
    gap: 2rem;
    animation: fadeInMenu 0.3s ease;
}

.product-category {
    flex: 1 1 300px;
} 

 .product-category h3 {
    color: #64ffda;
    font-size: 1.1rem;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid rgba(100, 255, 218, 0.3);
    text-align: center;
} 

.product-subcategories {
    display: flex;
    gap: 1rem;
    justify-content: center;
} 

.product-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem;
    transition: transform 0.3s ease;
}

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

.product-item img {
    width: 150px;
    height: 150px;
    object-fit: cover;
    border-radius: 4px;
    border: 2px solid transparent;
    transition: border-color 0.3s ease;
}

.product-item:hover img {
    border-color: #64ffda;
}

.product-item span {
    color: #ffffff;
    font-size: 0.9rem;
    text-align: center;
}

/* 响应式设计更新 */
@media (max-width: 1200px) {
    .product-menu-content {
        width: 95vw;
    }
    
    .product-category {
        flex: 1 1 250px;
    }
    
    .product-item img {
        width: 120px;
        height: 120px;
    }
}

@media (max-width: 768px) {
    .product-subcategories {
        flex-direction: column;
    }
    
    .product-category {
        flex: 1 1 100%;
    }
} */

/* 联系我们页面样式 */
.contact-section {
    padding-top: 80px;
    background-color: #fff;
    min-height: 100vh;
}

.contact-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
}

.breadcrumb {
    color: #666;
    margin-bottom: 2rem;
    padding: 0.5rem 0;
    border-bottom: 1px solid #eee;
}

.contact-content {
    display: flex;
    gap: 2rem;
}

/* 左侧导航样式 */
.contact-sidebar {
    flex: 0 0 250px;
}

.sidebar-icon {
    background-color: #1e50a2;
    color: #fff;
    padding: 1.5rem;
    text-align: center;
    margin-bottom: 1rem;
}

.sidebar-icon img {
    width: 60px;
    height: 60px;
    margin-bottom: 1rem;
}

.sidebar-icon h2 {
    font-size: 1.5rem;
    margin: 0;
}

.sidebar-menu {
    list-style: none;
    border: 1px solid #ddd;
}

.sidebar-menu li a {
    display: block;
    padding: 1rem;
    color: #333;
    text-decoration: none;
    border-bottom: 1px solid #ddd;
    transition: all 0.3s ease;
}

.sidebar-menu li:last-child a {
    border-bottom: none;
}

.sidebar-menu li a:hover,
.sidebar-menu li a.active {
    background-color: #1e50a2;
    color: #fff;
}

/* 右侧内容区样式 */
.contact-main {
    flex: 1;
}

.contact-info-section {
    background-color: #f8f8f8;
    padding: 2rem;
    margin-bottom: 2rem;
    border: 1px solid #ddd;
}

.contact-info-section h3 {
    color: #1e50a2;
    margin-bottom: 1rem;
    font-size: 1.3rem;
}

.contact-info-section p {
    color: #666;
    margin-bottom: 0.5rem;
}

.map-container {
    height: 400px;
    margin-bottom: 2rem;
    border: 1px solid #ddd;
}

.map-container iframe {
    width: 100%;
    height: 100%;
}

.sales-departments {
    display: flex;
    gap: 2rem;
    margin-bottom: 2rem;
}

.sales-card {
    flex: 1;
    background-color: #f8f8f8;
    padding: 1.5rem;
    border: 1px solid #ddd;
}

.sales-card h4 {
    color: #1e50a2;
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

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

/* 响应式设计 */
@media (max-width: 992px) {
    .contact-content {
        flex-direction: column;
    }

    .contact-sidebar {
        flex: none;
    }

    .sales-departments {
        flex-direction: column;
    }
}

@media (max-width: 768px) {
    .contact-container {
        padding: 1rem;
    }

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

/* 轮播图样式 */
.slider-section {
    position: relative;
    width: 100%;
    height: 80vh;
    overflow: hidden;
    margin-top: 80px;
}

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

.slide {
    position: absolute;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 1s ease-in-out;
}

.slide.active {
    opacity: 1;
}

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

.slide-content {
    position: absolute;
    bottom: 15%;
    left: 10%;
    color: #fff;
    z-index: 2;
}

.text-content {
    opacity: 0;
    transform: translateY(20px);
}

.slide.active .text-content {
    animation: textFadeIn 5s forwards;
}

.slide-text {
    font-size: 2rem;
    margin-bottom: 1rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
    opacity: 0;
    transform: translateY(20px);
}

.slide.active .slide-text {
    animation: textLineIn 1s forwards;
}

.slide.active .line2 {
    animation: textLineIn 1s forwards 0.5s;
}

.learn-more-btn {
    display: inline-block;
    padding: 1rem 2rem;
    border: 2px solid #fff;
    color: #fff;
    text-decoration: none;
    font-size: 1.1rem;
    margin-top: 2rem;
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.3s ease;
}

.slide.active .learn-more-btn {
    animation: textLineIn 1s forwards 1s;
}

.learn-more-btn:hover {
    background-color: #fff;
    color: #000;
}

/* 淡入淡出动画 */
.fade {
    animation-name: fade;
    animation-duration: 1.5s;
}

@keyframes fade {
    from {
        opacity: 0.4;
    }
    to {
        opacity: 1;
    }
}

@keyframes textFadeIn {
    0% {
        opacity: 0;
        transform: translateY(20px);
    }
    20% {
        opacity: 1;
        transform: translateY(0);
    }
    80% {
        opacity: 1;
        transform: translateY(0);
    }
    100% {
        opacity: 0;
        transform: translateY(-20px);
    }
}

@keyframes textLineIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 添加活动与新闻页面样式 */
.news-section {
    padding-top: 80px;
    background-color: #fff;
    min-height: 100vh;
}

.news-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 2rem;
}

.news-content {
    display: flex;
    gap: 2rem;
    margin-top: 2rem;
}

.news-main {
    flex: 1;
}

.news-title {
    margin-bottom: 2rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.en-title {
    color: #1e50a2;
    font-size: 2.5rem;
    font-weight: bold;
}

.cn-title {
    color: #333;
    font-size: 1.8rem;
}

.news-item {
    display: flex;
    gap: 2rem;
    margin-bottom: 2rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid #eee;
}

.news-image {
    flex: 0 100 300px;
}

.news-image img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-radius: 4px;
}

.news-info {
    flex: 1;
}

.news-info h3 {
    color: #333;
    font-size: 1.3rem;
    margin-bottom: 1rem;
}

.news-date {
    color: #666;
    font-size: 0.9rem;
}

.recent-events {
    flex: 0 0 400px;
    background-color: #f8f8f8;
    padding: 1.5rem;
    border-radius: 4px;
}

.recent-events h2 {
    color: #1e50a2;
    font-size: 1.3rem;
    margin-bottom: 1.5rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid #1e50a2;
}

.events-list {
    list-style: none;
}

.events-list li {
    margin-bottom: 1.5rem;
}

.events-list a {
    text-decoration: none;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.event-title {
    color: #333;
    font-size: 1rem;
    line-height: 1.4;
}

.event-date {
    color: #666;
    font-size: 0.9rem;
}

.learn-more {
    text-align: center;
    margin-top: 3rem;
}

.learn-more-link {
    display: inline-block;
    padding: 0.8rem 2rem;
    background-color: #1e50a2;
    color: #fff;
    text-decoration: none;
    border-radius: 4px;
    transition: background-color 0.3s ease;
}

.learn-more-link:hover {
    background-color: #153d7d;
}

/* 响应式设计 */
@media (max-width: 992px) {
    .news-content {
        flex-direction: column;
    }

    .recent-events {
        flex: none;
    }
}

@media (max-width: 768px) {
    .news-item {
        flex-direction: column;
    }

    .news-image {
        flex: none;
    }
}

/* 新闻中心页面样式 */
.news-center-section {
    padding-top: 80px;
    background-color: #f5f5f5;
    min-height: 100vh;
}

.news-center-container {
    max-width: 1500px;
    margin: 0 auto;
    padding: 2rem;
}

.news-center-header {
    position: relative;
    margin-bottom: 3rem;
}

.news-center-en {
    color: #ff0000;
    font-size: 1rem;
    text-transform: uppercase;
    margin-bottom: 0.5rem;
    display: block;
}

.news-center-title {
    color: #333;
    font-size: 2rem;
    margin: 0;
    display: inline-block;
}

.view-more {
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    color: #666;
    text-decoration: none;
    font-size: 1rem;
    transition: color 0.3s ease;
}

.view-more:hover {
    color: #ff0000;
}

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

.news-card {
    background: #fff;
    border-radius: 8px;
    overflow: hidden;
    display: flex;
    transition: transform 0.3s ease;
}

.news-card:hover {
    transform: translateY(-5px);
}

.news-card-image {
    flex: 0 0 200px;
    overflow: hidden;
}

.news-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

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

.news-card-content {
    flex: 1;
    padding: 2rem;
}

.news-card-content h3 {
    color: #333;
    font-size: 1.3rem;
    margin-bottom: 1rem;
}

.news-date {
    color: #666;
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.news-excerpt {
    color: #666;
    font-size: 1rem;
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.read-more {
    color: #ff0000;
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.3s ease;
}

.read-more:hover {
    color: #cc0000;
}

/* 响应式设计 */
@media (max-width: 992px) {
    .news-card {
        flex-direction: column;
    }

    .news-card-image {
        flex: none;
        height: 250px;
    }
}

@media (max-width: 768px) {
    .news-center-container {
        padding: 1rem;
    }

    .news-card-content {
        padding: 1.5rem;
    }
}

/* 近期活动页面样式 */
.events-section {
    padding-top: 80px;
    background-color: #f5f5f5;
    min-height: 100vh;
}

.events-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
}

.events-header {
    position: relative;
    margin-bottom: 3rem;
}

.events-en {
    color: #ff0000;
    font-size: 1rem;
    text-transform: uppercase;
    margin-bottom: 0.5rem;
    display: block;
}

.events-title {
    color: #333;
    font-size: 2rem;
    margin: 0;
    display: inline-block;
}

.events-list {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.event-item {
    display: flex;
    gap: 2rem;
    background: #fff;
    padding: 2rem;
    border-radius: 8px;
    transition: transform 0.3s ease;
}

.event-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.event-date {
    flex: 0 0 60px;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.date-day {
    font-size: 1.8rem;
    font-weight: bold;
    color: #333;
}

.date-year {
    font-size: 1.2rem;
    color: #666;
}

.event-content {
    flex: 1;
}

.event-content h3 {
    color: #333;
    font-size: 1.3rem;
    margin-bottom: 1rem;
}

.event-excerpt {
    color: #666;
    font-size: 1rem;
    line-height: 1.6;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .event-item {
        flex-direction: column;
        gap: 1rem;
        padding: 1.5rem;
    }

    .event-date {
        flex-direction: row;
        gap: 0.5rem;
        align-items: center;
    }
}

/* 产品中心页面样式 */
.products-section {
    padding-top: 80px;
    background-color: #f5f5f5;
    min-height: 100vh;
}

.products-container {
    display: flex;
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
}

.products-sidebar {
    flex: 0 0 250px;
    background-color: #fff;
}

.product-title {
    background-color: #0066cc;
    color: #fff;
    padding: 2rem;
    margin: 0;
    font-size: 1.5rem;
    line-height: 1.4;
}

.product-categories {
    list-style: none;
    padding: 0;
    margin: 0;
}

.product-categories li {
    border-bottom: 1px solid #eee;
}

.product-categories a {
    display: block;
    padding: 1rem 2rem;
    color: #333;
    text-decoration: none;
    transition: all 0.3s ease;
}

.product-categories a:hover {
    background-color: #f5f5f5;
    color: #0066cc;
    padding-left: 2.5rem;
}

.products-grid {
    flex: 1;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 2rem;
}

.product-item {
    background-color: #fff;
    border-radius: 8px;
    overflow: hidden;
    transition: transform 0.3s ease;
}

.product-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

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

.product-info {
    padding: 1.5rem;
}

.product-info h3 {
    color: #666;
    font-size: 1rem;
    margin-bottom: 0.5rem;
}

.product-info p {
    color: #333;
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
}

.model {
    color: #0066cc;
    font-size: 1rem;
}

/* 响应式设计 */
@media (max-width: 992px) {
    .products-container {
        flex-direction: column;
    }

    .products-sidebar {
        flex: none;
    }
}

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


.map-section {
    /* padding: 5rem 10%; */
    padding-bottom: 10px;
    background: white;
}

.map-section h2 {
    margin-bottom: 2rem;
    text-align: center;
    color: var(--secondary-color);
}

#company-map {
    width: 100%;
    height: 400px;
    border-radius: 10px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
} 

/* Add this CSS to styles.css or within a <style> tag in about.html */

/* Assuming the element has a class or ID, e.g., .safety-stat */
.safety-stat {
    position: absolute; /* Use absolute positioning */
    right: 0; /* Align to the right */
    top: 50%; /* Center vertically */
    transform: translateY(-50%); /* Adjust for perfect vertical centering */
    text-align: right; /* Align text to the right */
    /* Add any additional styling as needed */
} 

 /* 产品技术部分样式优化 */
 .product-section {
    padding: 80px 150px;
    background: #fff;
}

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

.section-title h3 {
    color: #FF0000;
    font-size: 14px;
    text-transform: uppercase;
    margin-bottom: 5px;
}

.section-title h2 {
    font-size: 36px;
    color: #333;
    font-weight: 500;
}

.product-categories {
    display: flex;
    gap: 60px;
    margin-bottom: 40px;
    
    padding-bottom: 20px;
}

.product-categories h3 {
    font-size: 24px;
    color: #333;
    font-weight: 500;
    position: relative;
    cursor: pointer;
    opacity: 0.6;
    transition: opacity 0.3s ease;
}

.product-categories h3.active {
    opacity: 1;
}

.product-categories h3.active::after {
    content: '';
    position: absolute;
    bottom: -21px;
    left: 0;
    width: 100%;
    height: 2px;
    background: #FF0000;
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 200px;
}

.product-card {
    background: #fff;
    padding: 0;
    transition: transform 0.3s ease;
}

.product-card:hover {
    transform: translateY(-5px);
}

.product-card img {
    width: 100%;
    height: 45%;
    margin-bottom: 20px;
}

.product-card h3 {
    font-size: 24px;
    margin-bottom: 10px;
    color: #333;
}

.product-card h4 {
    font-size: 16px;
    color: #666;
    margin-bottom: 15px;
    font-weight: normal;
}

.product-card p {
    font-size: 14px;
    line-height: 0.3;
    color: #666;
    margin-bottom: 20px;
}

.learn-more {
    color: #FF0000;
    text-decoration: none;
    font-size: 14px;
    display: inline-flex;
    align-items: center;
}

/* 应用领域部分样式优化 */
.application-section {
    padding: 80px 120px 0;
    background: #fff;
}

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

.application-section .section-title h3 {
    color: #FF0000;
    font-size: 14px;
    text-transform: uppercase;
    margin-bottom: 5px;
}

.application-section .section-title h2 {
    font-size: 36px;
    color: #333;
    font-weight: 500;
}

.application-header {
    text-align: center;
    margin-bottom: 0;
}

.application-header h2 {
    font-size: 36px;
    color: #333;
    margin-bottom: 60px;
    font-weight: 500;
    position: relative;
}

.application-header h2::after {
    content: '';
    position: absolute;
    bottom: -20px;
    left: 50%;
    transform: translateX(-50%);
    width: 40px;
    height: 2px;
    background: #FF0000;
}

.application-icons {
    display: flex;
    justify-content: space-between;
    margin-bottom: 80px;
    padding: 0;
}

.icon-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 15px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.icon-item img {
    width: 150px;
    height: 150px;
    opacity: 0.7;
    transition: all 0.3s ease;
}

.icon-item span {
    font-size: 16px;
    color: #333;
    font-weight: 500;
}

.icon-item:hover img {
    opacity: 1;
    transform: translateY(-5px);
}

.application-content {
    height: 600px;
    position: relative;
    display: flex;
    align-items: flex-end;
    overflow: hidden;
    /* background: #000; */
}

.background-video {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: auto;
    height: 100%;
    object-fit: contain;
    z-index: 1;
    cursor: pointer;
}

.background-video.paused::after {
    content: '▶';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 48px;
    color: white;
    background: rgba(0, 0, 0, 0.5);
    padding: 20px;
    border-radius: 50%;
    opacity: 0;
    transition: opacity 0.3s;
}

.background-video.paused:hover::after {
    opacity: 1;
}

/* .smart-city {
    padding: 0 120px 100px;
    width: 100%;
    position: relative;
    z-index: 3;
    transform: translate(10%, -50%); */
    /* background: rgba(0, 0, 0, 0.5); */
    /* padding: 20px 120px 100px;
} */

.smart-city h3 {
    font-size: 36px;
    color: #fff;
    margin-bottom: 20px;
    font-weight: 500;
}

.smart-city p {
    font-size: 20px;
    color: #fff;
    margin-bottom: 30px;
    opacity: 0.9;
}

.smart-city .learn-more {
    color: #fff;
    text-decoration: none;
    font-size: 16px;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    opacity: 0.9;
    transition: all 0.3s ease;
}

.smart-city .learn-more:hover {
    opacity: 1;
    transform: translateX(5px);
}

.smart-city .learn-more::after {
    content: '>';
    font-size: 18px;
}

/* 添加视频遮罩效果 */
/* .application-content::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.7), rgba(0,0,0,0.3));
    z-index: 2;
} */

/* 添加图标动画果 */
@keyframes iconFloat {
    0% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-5px);
    }
    100% {
        transform: translateY(0);
    }
}

.icon-item:hover {
    animation: iconFloat 1s ease infinite;
}

/* 新闻中心部分样式优化 */
.news-section {
    padding: 40px 120px;
    background: #fff;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 40px;
}

.news-section .section-title {
    text-align: left;
    margin-bottom: 0;
}

.news-section .section-title h3 {
    color: #FF0000;
    font-size: 14px;
    text-transform: uppercase;
    margin-bottom: 5px;
}

.news-section .section-title h2 {
    font-size: 36px;
    color: #333;
    font-weight: 500;
}

.view-more {
    color: #FF0000;
    text-decoration: none;
    border: 1px solid #FF0000;
    padding: 8px 24px;
    border-radius: 30px;
    font-size: 14px;
    transition: all 0.3s ease;
    display: inline-block;
}

.view-more:hover {
    background: #FF0000;
    color: #fff;
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 50px;
}

.news-card {
    background: #fff;
    transition: transform 0.3s ease;
    border-radius: 4px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.news-card:hover {
    transform: translateY(-5px);
}

.news-card img {
    width: 100%;
    height: 240px;
    object-fit: cover;
    margin-bottom: 0;
}

.news-info {
    padding: 24px;
    background: #fff;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.news-info .date {
    color: #999;
    font-size: 14px;
    margin-bottom: 15px;
}

.news-info h3 {
    font-size: 18px;
    color: #333;
    margin-bottom: 15px;
    line-height: 1.5;
    font-weight: 500;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.news-info p {
    color: #666;
    font-size: 14px;
    line-height: 1.8;
    margin-bottom: 20px;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
    flex-grow: 1;
}

.news-info .learn-more {
    color: #FF0000;
    text-decoration: none;
    font-size: 14px;
    display: inline-flex;
    align-items: center;
    margin-top: auto;
}

.news-info .learn-more::after {
    content: '>';
    margin-left: 8px;
}

.news-navigation {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 100%;
    left: 0;
    pointer-events: none;
}

.news-navigation button {
    position: absolute;
    background: none;
    border: none;
    font-size: 24px;
    color: #FF0000;
    cursor: pointer;
    pointer-events: auto;
    opacity: 0.8;
    transition: opacity 0.3s;
    width: 40px;
    height: 40px;
}

.news-navigation button:hover {
    opacity: 1;
}

.news-navigation .prev {
    left: 20px;
}

.news-navigation .next {
    right: 20px;
}

/* 页脚样式 */
.site-footer {
    background: #fff;
    padding: 5px 0 0;
    color: #333;
}

.footer-content {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 120px;
}

.footer-nav {
    display: flex;
    justify-content: flex-start;
    gap: 100px;
    margin-bottom: 80px;
}

.footer-column {
    flex: none;
}

.footer-column:first-child {
    width: 200px;
}

.footer-column:nth-child(2) {
    width: 400px;
}

.footer-column:nth-child(3) {
    width: 200px;
}

.footer-column:last-child {
    margin-left: auto;
}

.footer-column h3 {
    font-size: 18px;
    font-weight: 500;
    margin-bottom: 25px;
    color: #333;
}

.footer-column ul {
    list-style: none;
    padding: 0;
}

.footer-column ul li {
    margin-bottom: 15px;
}

.footer-column ul li a {
    color: #666;
    text-decoration: none;
    font-size: 14px;
    transition: color 0.3s;
    line-height: 1.6;
}

.footer-column ul li a:hover {
    color: #FF0000;
}

.footer-column .phone,
.footer-column .email {
    color: #FF0000;
    font-size: 14px;
    margin-bottom: 25px;
}

/* 商务联系部分样式 */
.business-contact {
    background: rgba(10, 25, 47, 0.95);;
    padding: 60px 120px;
    color: #fff;
}

.business-contact h3 {
    text-align: center;
    font-size: 24px;
    font-weight: 500;
    margin-bottom: 50px;
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 40px;
    max-width: 1400px;
    margin: 0 auto;
}

.contact-item {
    color: #fff;
}

.contact-item h4 {
    font-size: 16px;
    font-weight: 500;
    margin-bottom: 20px;
}

.contact-item p {
    font-size: 14px;
    line-height: 1.8;
    margin-bottom: 10px;
    opacity: 0.9;
}

/* 添加分隔线 */
.footer-nav {
    position: relative;
}

.footer-nav::after {
    content: '';
    position: absolute;
    bottom: -40px;
    left: 0;
    right: 0;
    height: 1px;
    background: #eee;
}

.slider-section {
    position: relative;
    height: auto; /* 改为自适应高度 */
    overflow: hidden;
    margin-top: 80px;
}

.slider-container {
    position: relative;
    width: 100%;
    height: auto; /* 改为自适应高度 */
}

.slide {
    position: absolute;
    width: 100%;
    height: auto; /* 改为自适应高度 */
    opacity: 0;
    transition: opacity 1s ease-in-out;
}

.slide.active {
    opacity: 1;
    position: relative; /* 激活的幻灯片使用相对定位 */
}

.slide img {
    width: 100%;
    height: auto; /* 改为自适应高度 */
    display: block; /* 添加这行消除图片底部间隙 */
}

.slide-content {
    position: absolute;
    top: 35%;
    left: 10%;
    transform: translateY(-50%);
    color: #fff;
    z-index: 2;
}

.text-content {
    max-width: 600px;
    padding: 20px;
}

.slide-text {
    font-size: 40px;
    font-weight: 600;
    margin-bottom: 20px;
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.8s ease 0.5s;
}

.slide-text.line1 {
    font-size: 50px;
    transition-delay: 0.3s;
}

.slide-text.line2 {
    font-size: 36px;
    transition-delay: 0.6s;
}

.learn-more-btn {
    display: inline-block;
    padding: 15px 40px;
    background: #FF0000;
    color: #fff;
    text-decoration: none;
    border-radius: 30px;
    font-size: 18px;
    margin-top: 30px;
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.8s ease 0.8s;
    border: 2px solid #FF0000;
}

.slide.active .learn-more-btn {
    opacity: 1;
    transform: translateY(0);
}

.learn-more-btn:hover {
    background: transparent;
    border-color: #fff;
}

/* 添加导航按钮 */
.slider-nav {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 12px;
    z-index: 3;
}

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

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

/* 添加渐变遮罩 */
.slide::before {
    display: none;
}

/* 响应式调整 */
@media screen and (max-width: 1440px) {
    .slider-section {
        height: auto;
    }
}

@media screen and (max-width: 768px) {
    .slider-section {
        height: auto;
    }

    .slide-text.line1 {
        font-size: 48px;
    }

    .slide-text.line2 {
        font-size: 24px;
    }
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo img {
    height: 40px;
    width: auto;
}

.company-name {
    display: flex;
    flex-direction: column;
}

.cn-name {
    font-size: 18px;
    font-weight: 500;
    color: #ffffff;
    line-height: 1.2;
}

.en-name {
    font-size: 12px;
    color: #d8d8d8;
    text-transform: uppercase;
}

.product-menu-content {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(10, 25, 47, 0.95);
    padding: 30px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    display: none;
    width: 900px;
    z-index: 1000;
}

.product-menu-content .top-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-bottom: 30px;
}

.product-menu-content .top-row .product-category:first-child {
    grid-column: span 2;
}

.product-menu-content .bottom-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.product-category {
    margin-bottom: 20px;
}

.product-item {
    text-align: center;
    width: 100%;
}

.product-item img {
    width: 120px;
    height: 120px;
    object-fit: contain;
    margin-bottom: 8px;
    transition: transform 0.3s ease;
}

.product-subcategories {
    display: flex;
    gap: 30px;
    justify-content: center;
}

.product-item span {
    font-size: 14px;
    color: #fff;
    display: block;
}

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

.product-item:hover span {
    color: #FF0000;
}

.dropdown:hover .product-menu-content {
    display: block;
}

.product-content {
    display: none;
}

.product-content.active {
    display: block;
}