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

        body {
            font-family: 'Noto Sans SC', sans-serif;
            line-height: 1.6;
            color: #333;
            overflow-x: hidden;
            background-color: #fcfcfc;
        }

        a {
            text-decoration: none;
            color: inherit;
        }

        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* 头部样式 - 修改为两行结构 */
        header {
            background-color: #fff;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            box-shadow: 0 3px 15px rgba(0, 0, 0, 0.1);
        }

        /* 顶部信息栏 - 包含logo和联系方式 */
        .top-bar {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 0;
            border-bottom: 1px solid #eee;
        }

        .logo {
			width:100%;
			max-width:418px;
			margin:10px 5px;
            display: flex;
            align-items: center;
        }
		.logo img{
			width:100%;
			display:block;
		}
        .contact-details {
            display: flex;
        }

        .contact-phone {
            font-weight: 700;
            color: #2563eb;
            font-size: 1.1rem;
            background: url('../images/tel.png') no-repeat left center;
            padding-left: 2rem;
            background-size: auto 1.25em;
            display: inline-block;
        }

        /* 导航菜单 */
        .nav{
            width: 100%;
            background: #013388;
            color: #fff;
        }
        .nav-menu {
            display: flex;
            list-style: none;
            justify-content: center;
        }

        .nav-menu li {
            position: relative;
            padding: 12px 25px;
        }
        .nav-menu li:hover{
            background: #001F74;
        }
        .nav-menu a {
            padding: 12px 0;
            font-weight: 500;
            padding: 8px 5px;
            transition: color 0.3s ease;
        }
        .nav-menu a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 3px;
            background-color: #fff;
            transition: width 0.3s ease;
        }

        .nav-menu a:hover::after {
            width: 100%;
        }

        .mobile-menu-btn {
            display: none;
            font-size: 1.8rem;
            cursor: pointer;
            color: #333;
        }

        /* Banner 轮播图 */
        .banner {
            margin-top: 140px;
            position: relative;
            height: 792px;
            overflow: hidden;
        }

        .slide {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            opacity: 0;
            transition: opacity 1.5s ease;
            background-size: cover;
            background-position: center;
            display: flex;
            align-items: center;
        }

        .slide.active {
            opacity: 1;
            z-index: 2;
        }


        @keyframes slideFadeIn {
            from {
                opacity: 0;
                transform: translateY(30px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .slide h1 {
            font-size: 3rem;
            margin-bottom: 20px;
            font-weight: 700;
            line-height: 1.3;
        }

        .slide p {
            font-size: 1.2rem;
            margin-bottom: 30px;
            line-height: 1.8;
        }

        .btn {
            display: inline-block;
            background-color: #2563eb;
            color: white;
            padding: 14px 30px;
            border-radius: 10px;
            font-weight: 600;
            transition: all 0.3s ease;
            border: 2px solid #2563eb;
            float: right;
            margin-right: 20px;
        }

        .btn:hover {
            background-color: transparent;
            color: #2563eb;
            transform: translateY(-3px);
            box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
        }

        .btn-outline {
            background-color: transparent;
            color: #fff;
            border: 2px solid #fff;
            margin-left: 15px;
        }

        .btn-outline:hover {
            background-color: #fff;
            color: #2563eb;
        }

        .slide-indicators {
            position: absolute;
            bottom: 30px;
            left: 50%;
            transform: translateX(-50%);
            display: flex;
            z-index: 3;
        }

        .indicator {
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background-color: rgba(255, 255, 255, 0.5);
            margin: 0 8px;
            cursor: pointer;
            transition: background-color 0.3s ease;
        }

        .indicator.active {
            background-color: white;
        }

        /* 产品展示部分 */
        .section {
            padding: 10px 0;
        }

        .products-xilie img{
            display: block;
            width: 100%;
        }

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

        .section-title h2 {
            color: #000;
            font-size: 2.5rem;
            position: relative;
            display: inline-block;
        }
        .section-title P{
            color: #000;
            font-size: 1.8rem;
            font-weight: 800;
            position: relative;
            padding-bottom: 10px;
        }
        .section-title p::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 260px;
            height: 4px;
            background: #2563eb;
            border-radius: 2px;
        }
/*
        .section-title p {
            margin-top: 15px;
            font-size: 1.2rem;
            color: #666;
            max-width: 700px;
            margin-left: auto;
            margin-right: auto;
        }
*/
        .products {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 30px;
        }

        .product-card {
            background: #fff;
            border-radius: 10px;
            overflow: hidden;
            border: 1px solid #b1b1b1;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }

        .product-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
        }

       .product-img {
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .product-img img {
            width: 80%;
        }
        .product-title{
            text-align: center;
            font-size: 1.2rem;
            font-weight: 800;
            padding: 25px;
        }

        /* 公司介绍 */
        .about {
            background: url('../images/bg-gongsi.jpg') no-repeat left  top;
            margin-top: 30px;
        }
        .about-title h2{
            font-size: 2.5rem;
            margin-top:60px;
            color: #fff;
        }
        .about-title p{
            color:#fff;
            font-size: 1.8rem;
            margin-bottom: 60px;
        }
        .about-title p::after{
            content: '';
            position: absolute;
            left: 19.5%;
            transform: translateY(75px);
            width: 380px;
            height: 4px;
            background: #fff;
            border-radius: 2px;
            margin-top: -25px;
        }
        .about-content {
            display: flex;
            flex-wrap: wrap;
        }

        .about-text {
            background: #fff;
            width: 30%;
            flex: 1;
        }

        .about-text p {
            text-indent: 2em;
            padding: 14px;
            line-height: 1.8;
        }

        .about-video {
            width: 70%;
            flex: 2;
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
        }
        video{
            width: 100%;
            display: block;
        }
        .about-img{
            margin-top: 20px;
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
            justify-content: center; 
        }
        .about-img img{
            width: 100%; /* 宽度100%适应父容器 */
            max-width: 275px; /* 设置最大宽度防止过大 */
            height: auto; /* 高度自适应 */
            aspect-ratio: 275/190; /* 保持原始宽高比 */
            object-fit: cover;
            box-shadow: 0 2px 4px rgba(0,0,0,0.1);
        }
        /* 新闻和文献板块 */
          .section-header {
            text-align: center;
            margin: 60px 0 40px;
            position: relative;
        }
        
        .section-header h2 {
            font-size: 2.5rem;
            color: #1a2a6c;
            display: inline-block;
            padding: 0 20px;
            background: linear-gradient(135deg, #fcfcfc 0%, #fcfcfc 100%);
            position: relative;
            z-index: 2;
        }
        
        .section-header:after {
            content: '';
            position: absolute;
            top: 50%;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, #1a2a6c, #4a569d);
            z-index: 1;
        }
        
        .news-section {
            display: flex;
            flex-wrap: wrap;
            gap: 30px;
            margin-bottom: 60px;
        }
        
        .news-card {
            flex: 1 1 calc(50% - 30px);
            background: white;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 8px 25px rgba(0, 0, 0, 0.08);
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            display: flex;
            flex-direction: column;
        }
        
        .news-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 35px rgba(0, 0, 0, 0.15);
        }
        
        .news-image {
            height: 200px;
            overflow: hidden;
        }
        
        .news-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        
        .news-card:hover .news-image img {
            transform: scale(1.05);
        }
        
        .news-content {
            padding: 25px;
            display: flex;
            flex-direction: column;
            flex-grow: 1;
        }
        
        .news-category {
            display: inline-block;
            background: linear-gradient(90deg, #1a2a6c, #4a569d);
            color: white;
            padding: 5px 15px;
            border-radius: 20px;
            font-size: 0.85rem;
            margin-bottom: 15px;
            align-self: flex-start;
        }
        
        .news-title {
            font-size: 1.5rem;
            margin-bottom: 15px;
            color: #1a2a6c;
        }
        
        .news-excerpt {
            color: #555;
            margin-bottom: 20px;
            flex-grow: 1;
        }
        
        .news-meta {
            display: flex;
            justify-content: space-between;
            color: #777;
            font-size: 0.9rem;
            border-top: 1px solid #eee;
            padding-top: 15px;
            margin-top: 10px;
        }
        .content-sections {
            padding: 80px 0;
        }
        
        .columns-container {
            display: flex;
            flex-wrap: wrap;
            gap: 30px;
        }
        
        .column {
            flex: 1;
            min-width: 300px;
            background: #fff;
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
            transition: transform 0.3s ease;
        }
        
        .column:hover {
            transform: translateY(-5px);
            box-shadow: 0 15px 35px rgba(0, 0, 0, 0.12);
        }
        
        .column-header {
            background: linear-gradient(135deg, #1e3c72, #2a5298);
            color: white;
            padding: 20px 30px;
        }
        
        .column-header h3 {
            font-size: 1.8rem;
            margin-bottom: 5px;
            display: flex;
            align-items: center;
        }
        
        .column-header h3::before {
            content: "";
            display: inline-block;
            width: 6px;
            height: 26px;
            background: #ff9a00;
            margin-right: 15px;
            border-radius: 3px;
        }
        
        .column-header p {
            opacity: 0.85;
        }
        
        .article-list {
            padding: 0;
        }
        
        .article-item {
            padding: 20px 30px;
            border-bottom: 1px solid #eee;
            transition: background 0.3s ease;
        }
        
        .article-item:hover {
            background-color: #f8f9ff;
        }
        
        .article-item:last-child {
            border-bottom: none;
        }
        
        .article-title {
            font-size: 1.1rem;
            font-weight: 600;
            margin-bottom: 10px;
            color: #2c3e50;
            display: flex;
            align-items: center;
        }
        
        .article-title::before {
            content: "»";
            color: #ff9a00;
            margin-right: 10px;
            font-size: 1.5rem;
        }
        
        .article-meta {
            font-size: 0.9rem;
            color: #6c757d;
            margin-bottom: 8px;
            display: flex;
            align-items: center;
        }
        
        .article-meta span {
            margin-right: 20px;
            display: flex;
            align-items: center;
        }
        
        .article-excerpt {
            font-size: 0.95rem;
            color: #555;
            line-height: 1.7;
        }
        
        .btn-more {
            display: block;
            text-align: center;
            padding: 15px;
            background-color: #f5f7fa;
            color: #3a6bc8;
            font-weight: 600;
            text-decoration: none;
            transition: all 0.3s ease;
        }
        
        .btn-more:hover {
            background-color: #e9ecef;
        }
        
        .tag {
            display: inline-block;
            padding: 3px 10px;
            font-size: 0.8rem;
            border-radius: 20px;
            margin-left: 15px;
        }
        
        .tag.news {
            background-color: #e3f2fd;
            color: #1976d2;
        }
        
        .tag.tech {
            background-color: #e8f5e9;
            color: #388e3c;
        }
        
/*企业优势*/
.youshi{
    width: 100%;
    background: linear-gradient(135deg, #0c1a3d 0%, #162856 100%);
    }
  .stats-container {
            max-width: 1300px;
            width: 100%;
            padding: 20px;
            margin: auto;
           
        }
        
        .stats-header {
            text-align: center;
            margin-bottom: 70px;
        }
        
        .stats-title {
            font-size: 3.5rem;
            font-weight: 700;
            letter-spacing: 1px;
            margin-bottom: 25px;
            background: linear-gradient(90deg, #00c9ff, #92fe9d);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            position: relative;
            display: inline-block;
        }
        
        .stats-title::after {
            content: "";
            position: absolute;
            bottom: -15px;
            left: 50%;
            transform: translateX(-50%);
            width: 100px;
            height: 5px;
            background: linear-gradient(90deg, #00c9ff, #92fe9d);
            border-radius: 5px;
        }
        
        .stats-subtitle {
            font-size: 1.4rem;
            max-width: 700px;
            margin: 30px auto 0;
            color: rgba(255, 255, 255, 0.85);
            line-height: 1.7;
        }
        
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 30px;
            margin-top: 50px;
        }
        
        .stat-card {
            background: rgba(255, 255, 255, 0.05);
            border-radius: 20px;
            padding: 40px 30px;
            text-align: center;
            position: relative;
            overflow: hidden;
            backdrop-filter: blur(15px);
            border: 1px solid rgba(255, 255, 255, 0.08);
            transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
            box-shadow: 0 15px 50px rgba(0, 0, 0, 0.2);
            z-index: 2;
        }
        
        .stat-card:hover {
            transform: translateY(-15px);
            box-shadow: 0 20px 60px rgba(0, 201, 255, 0.25);
            background: rgba(255, 255, 255, 0.08);
        }
        
        .stat-circle {
            width: 120px;
            height: 120px;
            border-radius: 50%;
            background: linear-gradient(135deg, #1d2d5f, #3b4b8a);
            margin: 0 auto 30px;
            display: flex;
            align-items: center;
            justify-content: center;
            border: 3px solid rgba(255, 255, 255, 0.15);
            position: relative;
            overflow: hidden;
            transition: all 0.4s ease;
        }
        
        .stat-card:hover .stat-circle {
            transform: scale(1.1);
            border-color: rgba(0, 201, 255, 0.4);
            box-shadow: 0 0 40px rgba(0, 201, 255, 0.3);
        }
        
        .stat-circle::before {
            content: "";
            position: absolute;
            width: 100%;
            height: 100%;
            background: radial-gradient(circle, rgba(0, 201, 255, 0.3), transparent 70%);
            opacity: 0;
            transition: opacity 0.4s ease;
        }
        
        .stat-card:hover .stat-circle::before {
            opacity: 1;
        }
        
        .stat-value {
            font-size: 1.8rem;
            font-weight: 800;
            background: linear-gradient(45deg, #00c9ff, #92fe9d);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            line-height: 1;
            position: relative;
            z-index: 2;
        }
        
        .stat-text {
            font-size: 1.2rem;
            font-weight: 500;
            color: #fff;
            margin-bottom: 5px;
            text-transform: uppercase;
            letter-spacing: 1px;
        }
        
        .stat-desc {
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.8);
            line-height: 1.6;
            max-width: 200px;
            margin: 0 auto;
        }
        
        /* 悬停特效 */
        .stat-card::before {
            content: "";
            position: absolute;
            top: -5px;
            left: -5px;
            right: -5px;
            bottom: -5px;
            background: linear-gradient(45deg, #00c9ff, #92fe9d);
            border-radius: 25px;
            z-index: -1;
            opacity: 0;
            transition: opacity 0.4s ease;
        }
        
        .stat-card:hover::before {
            opacity: 0.6;
        }
        
        /* 光效装饰 */
        .light-effects {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            pointer-events: none;
            z-index: 1;
            overflow: hidden;
        }
        
        .light-effects .particle {
            position: absolute;
            background: rgba(0, 201, 255, 0.3);
            border-radius: 50%;
            opacity: 0;
            animation: particleAnim 4s infinite linear;
        }
        
        @keyframes particleAnim {
            0% {
                transform: translate(0, 0) scale(0);
                opacity: 0;
            }
            20% {
                opacity: 0.8;
            }
            90% {
                opacity: 0;
            }
            100% {
                transform: translate(var(--tx), var(--ty)) scale(1);
                opacity: 0;
            }
        }

        /* 页脚 */
        footer {
            background: #2e3033;
            color: white;
            padding: 80px 0 30px;
        }

        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
            margin-bottom: 50px;
        }

        .footer-section h3 {
            font-size: 1.5rem;
            margin-bottom: 25px;
            position: relative;
            padding-bottom: 15px;
        }

        .footer-section h3::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 50px;
            height: 3px;
            background: #54eae7;
        }

        .contact-info{
            margin-top: 30px;
        }
        .contact-info .us{
            padding-left: 35px;
            background-size: 4%;
            margin-bottom: 10px;
            font-size: 0.9rem;
        }
        .contact-tel{
            background: url('../images/dianhua.png') no-repeat left center;
        }
        .contact-mail{
            background: url('../images/mail.png') no-repeat left center;
        }
        .contact-address{
            background: url('../images/addr.png') no-repeat left center;
        }
        .foot1,.foot2{
            padding-left: 35px;
        }
        .foot1{
            color: #54eae7;
            font-weight: 400;
            background: url('../images/foot1.png') no-repeat left center;
            background-size:5%;
        }
        .foot2{
            color: #54eae7;
            font-weight: 400;
            background: url('../images/foot2.png') no-repeat left center;
            background-size:5%;
        }
        .footer-bottom {
            text-align: center;
            padding-top: 30px;
            font-size:0.8rem;
        }
        .foot-line{
            width: 100%;
            margin: auto;
            border-top: 1px solid #181818;
            border-bottom: 1px solid #464646;
        }
        .social-links{
            margin-top: 30px;
        }

        .social-links p{
            font-size: 0.9rem;
            margin: 10px 0;
        }

        .social-links a {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background-color: rgba(255, 255, 255, 0.1);
            margin-right: 15px;
            transition: all 0.3s ease;
        }

        .social-links a:hover {
            background-color: white;
            color: #2563eb;
            transform: translateY(-5px);
        }

        /* 响应式设计 */
        @media (max-width: 992px) {

            .about-content {
                grid-template-columns: 1fr;
            }
			.logo{
				max-width:400px;
			}
			.nav{
				max-width:400px;
			}
            .slide h1 {
                font-size: 2.2rem;
            }

            .top-bar {
				max-width:400px;
                flex-direction: column;
                align-items: flex-start;
                padding: 15px 0 10px;
            }

            .contact-info {
                margin-top: 15px;
                width: 100%;
            }

            .contact-details {
                justify-content: space-between;
                width: 100%;
            }

            .contact-item {
                margin-left: 0;
            }
              .news-card {
                flex: 1 1 100%;
            }
            .stats-grid {
                gap: 30px;
            }
            
            .stat-circle {
                width: 120px;
                height: 120px;
            }
            
            .stat-value {
                font-size: 2.5rem;
            }
            
            .stats-title {
                font-size: 3rem;
            }
        }

        @media (max-width: 768px) {
            .contact-phone{
                padding-left: 3rem;
                background-size: auto 1.35em;
            }
            .mobile-menu-btn {
                display: block;
                position: absolute;
                right: 20px;
                top: 65px;
            }

            .nav-container {
                position: relative;
            }

            .nav-menu {
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: white;
                flex-direction: column;
                padding: 20px 0;
                box-shadow: 0 5px 10px rgba(0, 0, 0, 0.1);
                clip-path: polygon(0 0, 100% 0, 100% 0, 0 0);
                transition: clip-path 0.5s ease;
            }

            .nav-menu.active {
                clip-path: polygon(0 0, 100% 0, 100% 100%, 0 100%);
            }

            .nav-menu li {
                margin: 10px 20px;
            }

            .banner {
                height: 690px;
                margin-top: 180px;
            }

            .slide h1 {
                font-size: 1.8rem;
            }

            .section {
                padding: 70px 0;
            }

            .contact-item {
                font-size: 0.9rem;
            }

            .contact-phone {
                font-size: 1rem;
            }
             .columns-container {
                flex-direction: column;
            }
            
            .column {
                min-width: 100%;
            }
            
            .section-header h2 {
                font-size: 2.3rem;
            }
            .section-header h2 {
                font-size: 2rem;
            }
               .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            
            .stats-title {
                font-size: 2.5rem;
            }
            
            .stat-card {
                padding: 30px 20px;
            }
            
            .stat-value {
                font-size: 2.2rem;
            }
            
            .stat-text {
                font-size: 1.1rem;
            }
            
            .stat-desc {
                font-size: 1rem;
            }
            .about-img {
                gap: 15px;
            }
            .about-img img {
                max-width: 100%; /* 小屏幕去掉最大宽度限制 */
                aspect-ratio: 16/9; /* 改为更通用的宽高比 */
            }
            .about-text, .about-video {
                min-width: 100%;
            }

        @media (max-width: 576px) {
            .btn {
                display: block;
                width: 100%;
                margin-bottom: 15px;
            }

            .btn-outline {
                margin-left: 0;
            }

            .section-title h2 {
                font-size: 2rem;
            }

            .about-title h2{
                font-size: 2rem;
            }

            .logo-text {
                font-size: 1.5rem;
            }

            .banner {
                height: 640px;
                margin-top: 180px;
            }

            .contact-details {
                flex-wrap: wrap;
            }

            .contact-item {
                width: 100%;
                margin-bottom: 10px;
            }

            .mobile-menu-btn {
                top: 90px;
            }
             .stats-grid {
                grid-template-columns: 1fr;
            }
            
            .stats-title {
                font-size: 2.2rem;
            }
            
            .stat-circle {
                width: 100px;
                height: 100px;
            }
            
            .stats-subtitle {
                font-size: 1.2rem;
            }
            .about-text, .about-video {
                min-width: 100%;
        }