@charset "utf-8";

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', 'Microsoft YaHei', sans-serif;
        }
        
        html {
            scroll-behavior: smooth;
        }
        
        body {
            color: #333;
            line-height: 1.6;
            overflow-x: hidden;
        }
        
        .container {
            width: 90%;
            max-width: 1600px;
            margin: 0 auto;
        }
        
        /* 导航样式 - 更新为#231f20 */
        header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            transition: all 0.3s ease;
            padding: 20px 0;
            background-color: transparent;
        }
        
        header.scrolled {
            background-color: rgba(255, 255, 255, 0.95);
            box-shadow: 0 2px 15px rgba(0, 0, 0, 0.1);
            padding: 10px 0;
        }
        
        .nav-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        
        .logo {
            display: flex;
            align-items: center;
        }
        
        .logo img {
            width: 220px;
            height: auto;
            transition: all 0.3s;
        }
        
        .nav-menu {
            display: flex;
            list-style: none;
            align-items: center;
        }
        
        .nav-menu li {
            position: relative;
            margin-left: 40px;
        }
        
        .nav-menu a {
            color: #231f20; /* 更新为#231f20 */
            text-decoration: none;
            font-weight: 400;
            font-size: 16px;
            padding: 10px 0;
            transition: all 0.3s;
            position: relative;
        }
        
        .nav-menu a:after {
            content: '';
            position: absolute;
            bottom: 5px;
            left: 0;
            width: 0;
            height: 2px;
           
            transition: width 0.3s;
        }
        
        .nav-menu a:hover:after,
        .nav-menu a.active:after {
            width: 100%;
        }
        
        .nav-menu a:hover {
            color: #ef3238; /* 悬停时变为红色 */
        }
        
        .dropdown {
            position: absolute;
            top: 100%;
            left: 0;
            background-color: rgba(255, 255, 255, 0.98);
            min-width: 250px;
            display: none;
            flex-direction: column;
            padding: 15px 0;
            border-radius: 0 0 8px 8px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
            z-index: 1001;
           border-radius: 5px;
        }
        
        .dropdown li {
            margin: 0;
            width: 100%;
			list-style-type: none;
        }
        
        .dropdown a {
            display: block;
            padding: 12px 25px;
            font-size: 16px;
            color: #231f20;
        }
        
        .dropdown a:hover {
           
            color: #ef3238;
        }
        
        .nav-menu li:hover .dropdown {
            display: flex;
        }
        
        .mobile-menu-btn {
            display: none;
            font-size: 24px;
            color: #231f20;
            cursor: pointer;
        }
        
        /* Banner样式 - 移除颜色叠加，文字更新为#231f20 */
        .banner {
            height: 100vh;
            background: url('/template/pc/skin/images/bj0.jpg') no-repeat center center/cover;
            display: flex;
            align-items: center;
            position: relative;
        }
        
        .banner-content {
            max-width: 700px;
            padding: 40px;
            background-color: rgba(255, 255, 255, 0.85); /* 半透明白色背景确保文字可读 */
            border-left: 5px solid #ef3238;
            color: #231f20; /* 更新为#231f20 */
            margin-left: 5%;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
        }
        
        .banner-content h1 {
            font-size: 48px;
            margin-bottom: 25px;
            color: #231f20; /* 更新为#231f20 */
            line-height: 1.2;
        }
        
        .banner-content p {
            font-size: 20px;
            line-height: 1.8;
            color: #231f20; /* 更新为#231f20 */
        }
        
        /* 产品版块样式 */
        .section {
            padding: 100px 0;
            position: relative;
        }
        
        .section-title {
            text-align: center;
            margin-bottom: 70px;
            position: relative;
        }
        
        .section-title h2 {
            font-size: 42px;
            color: #231f20;
            display: inline-block;
            padding-bottom: 15px;
            position: relative;
        }
        
        .section-title h2:after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 120px;
            height: 3px;
            background-color: #ef3238;
        }
        
        .product-section {
            height: 100vh;
            display: flex;
            align-items: center;
            padding: 0;
        }
        
        .product-content {
            display: flex;
            align-items: center;
            height: 100%;
        }
        
        .product-text {
            flex: 1;
            padding: 50px;
        }
        
        .product-text h3 {
            font-size: 36px;
            color: #231f20;
            margin-bottom: 30px;
            line-height: 1.3;
        }
        
        .product-text p {
            font-size: 18px;
            line-height: 1.8;
            margin-bottom: 25px;
            color: #555;
        }
        
        .product-image {
            flex: 1;
            width: 100%;
            height: 100%;
           /** background-color: #fff;**/
            /* background-size: cover; */
            /* background-position: center; */
        }
        
        .product-1 .product-image {
            /*background-image: url('/template/pc/skin/images/img1.jpg');*/
        }
        .product-image img{
            display: block;
            max-width: 100%;
            height:100%;
            object-fit:cover;
            text-align: center;
            margin: 0 auto;
             width: 100%;
    height: auto;
    object-fit: contain; 
        }
        
        .product-2 {
            background-color: #f9f9f9;
        }
        
        .product-2 .product-image {
            /*background-image: url('https://images.squarespace-cdn.com/content/v1/5b3256317e3c3a8e8e029991/1599059648191-MADEHZWXG8A8SWZFHVI3/BER_CDP_InUse_Forest%2BCameron.jpg?format=2500w');*/
        }
        
        /* 视频部分 */
        .video-section {
            height: 100vh;
            position: relative;
            display: flex;
            align-items: center;
            justify-content: center;
            background-color: #000;
        }
        
        .video-container {
            width: 100%;
            height: 100%;
            position: relative;
        }
        
        .video-container iframe {
            width: 100%;
            height: 100%;
            border: none;
        }
        
        .video-overlay {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            background-color: rgba(35, 31, 32, 0.6);
            color: #fff;
            text-align: center;
            padding: 20px;
        }
        
        .video-overlay h3 {
            font-size: 48px;
            margin-bottom: 20px;
        }
        
        .video-overlay p {
            font-size: 20px;
            max-width: 700px;
        }
        
        /* 应用行业 */
        .applications {
            background-color: #fff;
        }
        
        .app-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }
        
        .app-item {
            background-color: #f8f8f8;
            border-radius: 10px;
            padding: 40px 30px;
            text-align: center;
            transition: transform 0.3s;
            border-top: 4px solid #ef3238;
        }
        
        .app-item:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
        }
        
        .app-icon {
            font-size: 50px;
            color: #ef3238;
            margin-bottom: 25px;
        }
        
        .app-item h4 {
            font-size: 24px;
            color: #231f20;
            margin-bottom: 15px;
        }
        
        /* 客户评价 */
        .testimonials {
            background-color: #231f20;
            color: #fff;
            padding: 100px 0;
        }
        
        .testimonials .section-title h2 {
            color: #fff;
        }
        
        .swiper {
            width: 100%;
            height: 400px;
        }
        
        .testimonial-slide {
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 0 20px;
        }
        
        .testimonial-content {
            max-width: 900px;
            text-align: center;
            padding: 50px;
        }
        
        .testimonial-text {
            font-size: 24px;
            line-height: 1.8;
            font-style: italic;
            margin-bottom: 40px;
            position: relative;
        }
        
        .testimonial-text:before,
        .testimonial-text:after {
            content: '"';
            font-size: 60px;
            color: #ef3238;
            position: absolute;
            opacity: 0.5;
        }
        
        .testimonial-text:before {
            top: -30px;
            left: -40px;
        }
        
        .testimonial-text:after {
            bottom: -60px;
            right: -40px;
        }
        
        .testimonial-author {
            font-size: 20px;
            font-weight: 600;
            color: #ef3238;
        }
        
        .testimonial-role {
            font-size: 16px;
            color: #ccc;
            margin-top: 5px;
        }
        
        /* 新闻部分 */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }
        
        .news-item {
            background-color: #fff;
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
            transition: transform 0.3s;
            border-top: 4px solid #ef3238;
        }
        
        .news-item:hover {
            transform: translateY(-10px);
        }
        
        .news-img {
            height: 220px;
            background-color: #ddd;
            background-size: cover;
            background-position: center;
        }
        
        .news-content {
            padding: 25px;
        }
        
        .news-date {
            color: #ef3238;
            font-size: 14px;
            margin-bottom: 10px;
        }
        
        .news-content h4 {
            font-size: 20px;
            color: #231f20;
            margin-bottom: 15px;
            line-height: 1.4;
        }
        
        /* 底部样式 */
        footer {
            background-color: #231f20;
            color: #fff;
            padding: 80px 0 30px;
        }
        
        .footer-container {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 40px;
            margin-bottom: 50px;
        }
        
        .footer-logo img {
            width: 220px;
            margin-bottom: 20px;
        }
        
        .footer-heading {
            color: #ef3238;
            font-size: 22px;
            margin-bottom: 25px;
            position: relative;
            padding-bottom: 10px;
        }
        
        .footer-heading:after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 50px;
            height: 2px;
            background-color: #ef3238;
        }
        
        .footer-links li {
            list-style: none;
            margin-bottom: 12px;
        }
        
        .footer-links a {
            color: #ccc;
            text-decoration: none;
            transition: color 0.3s;
        }
        
        .footer-links a:hover {
            color: #ef3238;
        }
        
        .copyright {
            text-align: center;
            padding-top: 30px;
            border-top: 1px solid #444;
            color: #999;
            font-size: 15px;
        }
        
        /* 响应式设计 */
        @media (max-width: 1200px) {
            .container {
                width: 95%;
            }
            
            .product-text h3 {
                font-size: 32px;
            }
            
            .app-grid,
            .news-grid,
            .footer-container {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        
        @media (max-width: 992px) {
            .nav-menu {
                display: none;
            }
            
            .mobile-menu-btn {
                display: block;
            }
            
            .banner-content {
                margin: 0 auto;
                width: 90%;
            }
            
            .banner-content h1 {
                font-size: 36px;
            }
            
            .product-section {
                height: auto;
                padding: 80px 0;
            }
            
            .product-content {
                flex-direction: column;
            }
            
            .product-1 .product-content {
                flex-direction: column-reverse;
            }
            
            .product-image {
                width: 100%;
                height: 400px;
            }
            
            .video-overlay h3 {
                font-size: 36px;
            }
        }
        
        @media (max-width: 768px) {
            .banner-content h1 {
                font-size: 30px;
            }
            
            .section-title h2 {
                font-size: 32px;
            }
            
            .product-text {
                padding: 30px 20px;
            }
            
            .testimonial-text {
                font-size: 20px;
            }
            
            .app-grid,
            .news-grid,
            .footer-container {
                grid-template-columns: 1fr;
            }
            
            .footer-container {
                gap: 30px;
            }
        }
        
        @media (max-width: 480px) {
            .banner-content {
                padding: 20px;
            }
            
            .banner-content h1 {
                font-size: 26px;
            }
            
            .banner-content p {
                font-size: 16px;
            }
            
            .section {
                padding: 60px 0;
            }
            
            .product-text h3 {
                font-size: 28px;
            }
            
            .video-overlay h3 {
                font-size: 28px;
            }
            
            .testimonial-text {
                font-size: 18px;
            }
        }
        
        /* 移动端导航菜单 */
        .mobile-menu {
            position: fixed;
            top: 0;
            right: -100%;
            width: 300px;
            height: 100vh;
            background-color: rgba(255, 255, 255, 0.98);
            z-index: 1002;
            padding: 100px 30px 30px;
            transition: right 0.4s ease;
            overflow-y: auto;
            box-shadow: -5px 0 20px rgba(0, 0, 0, 0.1);
        }
        
        .mobile-menu.active {
            right: 0;
        }
        
        .mobile-menu li {
            list-style: none;
            margin-bottom: 20px;
        }
        
        .mobile-menu a {
            color: #231f20;
            text-decoration: none;
            font-size: 20px;
            display: block;
            padding: 10px 0;
            border-bottom: 1px solid #eee;
        }
        
        .mobile-dropdown {
            display: none;
            padding-left: 20px;
            margin-top: 10px;
        }
        
        .mobile-dropdown.active {
            display: block;
        }
        
        .mobile-dropdown li {
            margin-bottom: 10px;
        }
        
        .mobile-dropdown a {
            font-size: 16px;
            border-bottom: none;
            color: #666;
        }
        
        .close-menu {
            position: absolute;
            top: 30px;
            right: 30px;
            font-size: 28px;
            color: #231f20;
            cursor: pointer;
        }
        
        .menu-overlay {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-color: rgba(0, 0, 0, 0.5);
            z-index: 1001;
            display: none;
        }
        
        .menu-overlay.active {
            display: block;
        }
        
        /* 特色按钮样式 */
        .cta-button {
            display: inline-block;
            background-color: #ef3238;
            color: white;
            padding: 12px 30px;
            border-radius: 30px;
            text-decoration: none;
            font-weight: 600;
            margin-top: 20px;
            transition: all 0.3s;
            border: 2px solid #ef3238;
        }
        
        .cta-button:hover {
            background-color: transparent;
            color: #ef3238;
        }