@charset "utf-8";
/* CSS Document */

* {
            margin: 0;
            padding: 0px 50px;
            box-sizing: border-box;
        }
        
        :root {
    

            /* --primary: #1a4a81; */
            --primary: #304a7a;
            --secondary: #ffc107;
            --accent: #2c5282;
            --light: #f8f9fa;
            --dark: #212529;
            --gray: #6c757d;
            --white: #ffffff;
            --shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
            --transition: all 0.3s ease;
            --boaderwithd: 1760px;
        }
        
        body {
  
            display: flex;
            flex-direction: column;
            align-items: center;
            
        }
        
        h1,h2,h3,h4, h5 {
            font-family: 'Poppins', sans-serif;
            font-weight: 700;
            line-height: 1.3;
        }

/*
        h2{
            font-family: 'Poppins', sans-serif;
            font-size: 0.1rem;
            line-height: 1.3;
        }
*/

        
        h3a {
            font-family: 'Poppins', sans-serif;
            color: var(--gray);
            font-size: 2rem;
            margin-top: 5px;
        }   
/*
        pa {
           text-indent: 2em;
        }
*/
        
        .container {
            width: 100%;
            max-width: 1800px;
/*            margin: 2px;*/
            padding: 10px 20px;

        }

        
        .btn {
            display: inline-block;
            background: var(--secondary);
            color: var(--primary);
            padding: 12px 28px;
            font-size: 1rem;
            font-weight: 600;
            text-decoration: none;
            border-radius: 4px;
            transition: var(--transition);
            border: 2px solid var(--secondary);
            text-transform: uppercase;
            letter-spacing: 1px;
            cursor: pointer;
        }
        
        .btn:hover {
            background: transparent;
            color: var(--secondary);
            transform: translateY(-3px);
            box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
        }
        
        .btn-outline {
            background: transparent;
            color: var(--secondary);
            border: 2px solid var(--secondary);
        }
        
        .btn-outline:hover {
            background: var(--secondary);
            color: var(--primary);
        }
        
        section {
            padding: 10px 0px 10px;
        }
        
        .section- title {
            text-align: left;
            margin-bottom: 2px;
            max-width: 1000px;
/*            margin-left: auto;*/
            margin-right: auto;
        }
        
        .section-title h1 {
           margin-top: 50px;
            text-align: center;
            margin-bottom: 40px;
            max-width: 1920px;
            padding: 0 20px;
        }
        .section-title h2 {
            margin-top: 50px;
            font-size: 3.0rem;
            color: var(--primary);
            margin-bottom: 20px;
            position: relative;
            display: inline-block;
        }

        .section-title h3 {
         color: var(--gray);
            font-size: 1.3rem;
            margin-top: 5px;
        }
        
        /* .section-title h2::after {
            content: '';
            position: absolute;
            bottom: -15px;
            left: 50%;
            transform: translateX(-50%);
            width: 80px;
            height: 4px;
            background: var(--secondary);
        } */
        
        .section-title p {
            color: var(--gray);
            font-size: 1.15rem;
            margin-top: 30px;
        }        

    .section-title table{
        margin-top: 30px;
            color: var(--gray);
            font-size: 1.15rem;
/*            text-align: center;*/
            width: 100%;
            border-collapse: collapse;

        }

    .section-title td{
          width: 50px;
            text-align: center;
    
        }
        
        /* Header Styles */
        header {
            background: var(--primary);
            color: var(--white);
            padding: 15px 0;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
            transition: var(--transition);
        }
        
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        
        .logo {
            display: flex;
            align-items: left;
        }
        
        .logo img {
            height: 50px;
            margin: 0px;
            padding: 0px;
            margin-left: 15%;
        }
        
        .logo h1 {
            font-size: 1.8rem;
            font-weight: 700;
        }
        
        .logo span {
            color: var(--white);
        }
        
        nav ul {
            display: flex;
            list-style: none;
        }
        
        nav ul li {
            margin-left: 5px;
        }
        
        nav ul li a {
            color: var(--primary);
            text-decoration: none;
            font-weight: 500;
            font-size: 1.1rem;
            transition: var(--transition);
            padding: 8px 2px;
            border-radius: 2px;
            position: relative;
        }
        
        nav ul li a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--white);
            transition: var(--transition);
        }
        
        nav ul li a:hover::after,
        nav ul li a.active::after {
            width: 100%;
        }
        
        nav ul li a:hover, 
        nav ul li a.active {
            color: var(--white);
        }
        
        .menu-toggle {
            display: none;
            color: var(--white);
            font-size: 1.5rem;
            cursor: pointer;
        }
        
        /* Hero Section */
        .containerb {
            width: 100%;
            max-width: 1800px;
            height: 600px;
            background-color: var(--primary);
            display: grid;
            grid-template-columns: 50% 50%;
        
        }

        .hero {
           
        
            color: var(--white);
            margin-top: 200px;
           

        }
        
        
        .hero img { 

            position: relative; /* 关键设置 */ 

            margin-top: -150px;
           
        }
        .hero h2 {
            left: 0px;
            font-size: 3.8rem;
     
        }
        
        .hero p {
         
            font-size: 1.4rem;
    
        }
        
        /* .hero-btns {
            display: flex;
            justify-content: center;
            gap: 20px;
            margin-top: 30px;
        } */
        
        /* About Section */
        .about {
            background-color: var(--white);
        }
        
        .about-content {
            display: flex;
            align-items: center;
            gap: 60px;
        }
        
        .about-text {
            flex: 1;
        }
        
        .about-text h3 {
            font-size: 2rem;
            color: var(--primary);
            margin-bottom: 25px;
        }
        
        .about-text p {
            margin-bottom: 25px;
            font-size: 1.1rem;
            line-height: 1.8;
        }
        
        .about-stats {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 30px;
            margin-top: 40px;
        }
        
        .stat-box {
            text-align: center;
            padding: 25px;
            background: var(--light);
            border-radius: 8px;
            box-shadow: var(--shadow);
        }
        
        .stat-box i {
            font-size: 2.5rem;
            color: var(--secondary);
            margin-bottom: 15px;
        }
        
        .stat-box h4 {
            font-size: 2.2rem;
            color: var(--primary);
            margin-bottom: 5px;
        }
        
        .stat-box p {
            color: var(--gray);
            font-size: 1rem;
            margin: 0;
        }
        
        .about-image {
            flex: 1;
            border-radius: 10px;
            overflow: hidden;
            box-shadow: var(--shadow);
        }
        
        .about-image img {
            width: 100%;
            height: auto;
            display: block;
            transition: transform 0.5s;
        }
        
        .about-image:hover img {
            transform: scale(1.03);
        }
        
        /* Products Section */
        .products {
            background-color: var(--light);
        }
        
        .product-filters {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 15px;
            margin-bottom: 40px;
        }
        
        .filter-btn {
            padding: 10px 25px;
            background: var(--white);
            color: var(--primary);
            border: 2px solid var(--primary);
            border-radius: 30px;
            font-weight: 500;
            cursor: pointer;
            transition: var(--transition);
        }
        
        .filter-btn.active, 
        .filter-btn:hover {
            background: var(--primary);
            color: var(--white);
        }
        
        .product-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 30px;
        }
        
        .product-card {
            background: var(--white);
            border-radius: 10px;
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: var(--transition);
            position: relative;
        }
        
        .product-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.12);
        }
        
        .product-badge {
            position: absolute;
            top: 15px;
            right: 15px;
            background: var(--secondary);
            color: var(--primary);
            padding: 5px 15px;
            border-radius: 30px;
            font-weight: 600;
            font-size: 0.9rem;
            z-index: 2;
        }
        
        .product-image {
            height: 220px;
            overflow: hidden;
        }
        
        .product-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s;
        }
        
        .product-card:hover .product-image img {
            transform: scale(1.1);
        }
        
        .product-info {
            padding: 25px;
        }
        
        .product-info h3 {
            font-size: 1.4rem;
            color: var(--primary);
            margin-bottom: 10px;
        }
        
        .product-info p {
            color: var(--gray);
            margin-bottom: 20px;
        }
        
        .product-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        
        .product-category {
            display: inline-block;
            background: rgba(26, 58, 95, 0.1);
            color: var(--primary);
            padding: 5px 15px;
            border-radius: 20px;
            font-size: 0.9rem;
            font-weight: 500;
        }
        
        .product-price {
            font-weight: 700;
            color: var(--primary);
            font-size: 1.2rem;
        }
        
        /* Services Section */
        .services {
            background-color: var(--white);
        }
        
        .services-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 30px;
        }
        
        .service-card {
            text-align: center;
            padding: 50px 30px;
            background: var(--light);
            border-radius: 10px;
            transition: var(--transition);
            border: 2px solid transparent;
        }
        
        .service-card:hover {
            background: var(--white);
            border-color: var(--secondary);
            transform: translateY(-10px);
            box-shadow: var(--shadow);
        }
        
        .service-icon {
            width: 80px;
            height: 80px;
            background: var(--primary);
            color: var(--secondary);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 25px;
            font-size: 2.5rem;
            transition: var(--transition);
        }
        
        .service-card:hover .service-icon {
            background: var(--secondary);
            color: var(--primary);
            transform: rotateY(180deg);
        }
        
        .service-card h3 {
            font-size: 1.5rem;
            color: var(--primary);
            margin-bottom: 15px;
        }
        
        .service-card p {
            color: var(--gray);
        }
        
        /* Testimonials */
        .testimonials {
            background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
            color: var(--white);
            position: relative;
            overflow: hidden;
        }
        
        .testimonials::before {
            content: '';
            position: absolute;
            top: -50px;
            right: -50px;
            width: 200px;
            height: 200px;
            background: rgba(255, 255, 255, 0.05);
            border-radius: 50%;
        }
        
        .testimonials::after {
            content: '';
            position: absolute;
            bottom: -80px;
            left: -80px;
            width: 250px;
            height: 250px;
            background: rgba(255, 255, 255, 0.05);
            border-radius: 50%;
        }
        
        .testimonials .section-title h2 {
            color: var(--white);
        }
        
        .testimonials .section-title p {
            color: rgba(255, 255, 255, 0.8);
        }
        
        .testimonial-container {
            max-width: 800px;
            margin: 50px auto 0;
            position: relative;
        }
        
        .testimonial {
            background: rgba(255, 255, 255, 0.1);
            padding: 50px;
            border-radius: 10px;
            text-align: center;
            backdrop-filter: blur(10px);
            border: 1px solid rgba(255, 255, 255, 0.15);
            position: relative;
            z-index: 2;
        }
        
        .testimonial p {
            font-size: 1.25rem;
            font-style: italic;
            line-height: 1.8;
            margin-bottom: 30px;
            position: relative;
        }
        
        .testimonial p::before,
        .testimonial p::after {
            content: '"';
            font-size: 4rem;
            position: absolute;
            color: rgba(255, 255, 255, 0.1);
            font-family: Georgia, serif;
        }
        
        .testimonial p::before {
            top: -30px;
            left: -20px;
        }
        
        .testimonial p::after {
            bottom: -60px;
            right: -20px;
        }
        
        .client {
            display: flex;
            align-items: center;
            justify-content: center;
        }
        
        .client img {
            width: 70px;
            height: 70px;
            border-radius: 50%;
            object-fit: cover;
            margin-right: 20px;
            border: 3px solid var(--secondary);
        }
        
        .client-info h4 {
            font-size: 1.4rem;
            margin-bottom: 5px;
        }
        
        .client-info p {
            color: var(--secondary);
            font-size: 1rem;
            margin: 0;
            font-style: normal;
        }
        
        /* Contact Section */
        .contact {
            background-color: var(--light);
        }
        
        .contact-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 50px;
        }
        
        .contact-info {
            display: flex;
            flex-direction: column;
            gap: 30px;
        }
        
        .contact-item {
            display: flex;
            gap: 20px;
        }
        
        .contact-icon {
            min-width: 60px;
            height: 60px;
            background: var(--primary);
            color: var(--secondary);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
        }
        
        .contact-text h4 {
            font-size: 1.3rem;
            margin-bottom: 8px;
            color: var(--primary);
        }
        
        .contact-text p {
            color: var(--gray);
        }
        
        .contact-map {
            height: 300px;
            border-radius: 10px;
            overflow: hidden;
            box-shadow: var(--shadow);
            margin-top: 20px;
        }
        
        .contact-map iframe {
            width: 100%;
            height: 100%;
            border: none;
        }
        
        .contact-form {
            background: var(--white);
            padding: 40px;
            border-radius: 10px;
            box-shadow: var(--shadow);
        }
        
        .form-group {
            margin: 20px;
            margin-bottom: 25px;
        }
        
        .form-group label {
            display: block;
            margin-bottom: 8px;
            font-weight: 500;
            color: var(--primary);
        }
        
        .form-control {
            width: 100%;
            padding: 14px 20px;
            border: 1px solid #ddd;
            border-radius: 5px;
            font-size: 1rem;
            transition: var(--transition);
            font-family: 'Roboto', sans-serif;
        }
        
        .form-control:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(26, 58, 95, 0.1);
        }
        
        textarea.form-control {
            min-height: 150px;
            resize: vertical;
        }
        
        /* Footer */
        footer {
            background: var(--primary);
            color: var(--white);
            padding: 80px 0 0;
        }
        
        .footer-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
            margin-top: 50px;
        }
        
        .footer-col h4 {
            font-size: 1.4rem;
            margin-bottom: 25px;
            position: relative;
            padding-bottom: 12px;
        }
        
        .footer-col h4::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 40%;
            width: 50px;
            height: 3px;
            background: var(--secondary);
        }
        
        .footer-col p {
            color: rgba(255, 255, 255, 0.7);
            line-height: 1.8;
            margin-bottom: 20px;
        }
        
        .footer-col ul {
            list-style: none;
        }
        
        .footer-col ul li {
            margin-bottom: 15px;
        }
        
        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.7);
            text-decoration: none;
            transition: var(--transition);
            display: flex;
            align-items: center;
            gap: 10px;
        }
        
        .footer-col ul li a i {
            color: var(--secondary);
            width: 20px;
        }
        
        .footer-col ul li a:hover {
            color: var(--secondary);
            padding-left: 5px;
        }
        
        .social-links {
            display: flex;
            gap: 15px;
            margin-top: 20px;
            width: 150px; margin: 0 auto; 
       
        }
        
        .social-links a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 45px;
            height: 45px;
            background: rgba(255, 255, 255, 0.1);
            color: var(--white);
            border-radius: 50%;
            transition: var(--transition);
        }
        
        .social-links a:hover {
            background: var(--secondary);
            color: var(--primary);
            transform: translateY(-5px);
        }
        
        .copyright {
            margin-top: 10px;
            text-align: center;
            /* padding: 30px 0; */
            /* margin-top: 60px; */
            /* border-top: 1px solid rgba(255, 255, 255, 0.1); */
            color: rgba(255, 255, 255, 0.7);
        }
        
        /* Responsive */
        @media (max-width: 992px) {
            .about-content {
                flex-direction: column;
            }
            
            .hero h2 {
                font-size: 3.2rem;
            }
            
            .section-title h2 {
                font-size: 2.5rem;
            }
        }
        
        @media (max-width: 768px) {
            .menu-toggle {
                display: block;
            }
            
            nav {
                position: fixed;
                top: 80px;
                left: -100%;
                width: 100%;
                height: calc(100vh - 80px);
                background: var(--primary);
                transition: var(--transition);
                z-index: 999;
            }
            
            nav.active {
                left: 0;
            }
            
            nav ul {
                flex-direction: column;
                padding: 40px 20px;
            }
            
            nav ul li {
                margin: 0 0 20px 0;
            }
            
            nav ul li a {
                font-size: 1.2rem;
                display: block;
                padding: 12px 0;
            }
            
            .hero h2 {
                font-size: 2.5rem;
            }
            
            .hero p {
                font-size: 1.2rem;
            }
            
            .hero-btns {
                flex-direction: column;
                gap: 15px;
            }
            
            .section-title h2 {
                font-size: 2.2rem;
            }
            
            .testimonial {
                padding: 30px 20px;
            }
        }
        
        @media (max-width: 576px) {
            .hero h2 {
                font-size: 2rem;
            }
            
            .hero p {
                font-size: 1rem;
            }
            
            .section-title h2 {
                font-size: 1.8rem;
            }
            
            section {
                padding: 70px 0;
            }
        }

 /* 下拉菜单样式 */
        .dropdown {
            position: relative;
/*
            display: inline-block;
            min-width: 100px;
*/
			margin: 0px;
			margin-top: 40px;
			
        }
 .dropbtn {
/*
            background-color: transparent;
            color: none;
            padding: 14px 20px;
            font-size: 16px;
            border: none;
            border-radius: 4px;
            cursor: pointer;
            min-width: 180px;

	 
/*	 定义的样式*/
            background: rgba(255, 255, 255, 0.15);
            backdrop-filter: blur(10px);
            border-radius: 2px;
            box-shadow: 0 8px 32px rgba(31, 38, 135, 0.2);
            animation: fadeIn 1.5s ease;
			border: solid;	
			color: #F9F9F9;
	 		font-size: 18px;
	 		font-family: "Helvetica Neue";
	 
        }

.dropdown-content {
            display: none;
            position: absolute;
            background-color: #C8E71C;
            min-width: 100%;
            box-shadow: 0 8px 16px rgba(0,0,0,0.2);
            z-index: 1;
            border-radius: 8px;
            overflow: hidden;
            margin-top: 5px;
            animation: fadeIn 0.3s ease-out;
        }

        .dropdown-content a {
            color: var(--accent);
            padding: 14px 20px;
            text-decoration: none;
            display: block;
            transition: all 0.2s ease;
            border-bottom: 1px solid #ecf0f1;
        }
        
        .dropdown-content a:last-child {
            border-bottom: none;
        }
        
        .dropdown-content a:hover {
      
            color: white;
            padding-left: 0px;
        }
        
        .dropdown:hover .dropdown-content {
            display: block;
        }
        



        
        /* 动画效果 */
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }
        
        @keyframes fadeInDown {
            from { opacity: 0; transform: translateY(-20px); }
            to { opacity: 1; transform: translateY(0); }
        }
        
        /* 响应式设计 */
        @media (max-width: 768px) {
            header {
                flex-direction: column;
                text-align: center;
            }
            
            nav ul {
                margin-top: 20px;
                flex-wrap: wrap;
                justify-content: center;
            }
            
            nav ul li {
                margin: 5px 10px;
            }
            
            .hero h1 {
                font-size: 2.5rem;
            }
            
            .features {
                flex-direction: column;
                align-items: center;
            }
        }

/*导航栏样式*/

.navbar {

/*
  text-align: right;  关键：整体靠左 
  padding: 0;
  margin: 0;
  width: 100%;
  position: absolute; 
  right: 20px;
*/
    display: grid;
    grid-template-columns: 28% 10% 20% 20% 20%; 
   /* gap:-10px; */
  margin: 0px;
    padding: 0px;
    max-height: 33px;

/*    gap: 30px;*/
/*    adam 格子控制*/
}

.navbar img{

  /* top: 50%;
  left: 50%; */
  width: 43%;
  transform: translate(30%, -12px); /* 完美居中 */


}
.navbar > li {

  position: relative; /* 为下拉菜单定位基准 */
	/* margin-right: 10px; adam 导航的间距*/

}


.navbar li {
  list-style: none;
    padding: 0 15px;
}

/* 菜单链接基础样式 */
.navbar a {
  display: block;
  color: white;
  text-decoration: none;
  padding: 3px 5px;
  transition: all 0.3s;
  font-size: 20px;
}

/* 菜单项悬停效果 */
.navbar a:hover {
            text-decoration: none;
            color: var(--accent);
            font-weight: 500;
            padding: 8px 15px;
            border-radius: 20px;
            transition: all 0.3s ease;
}

/*adam 下拉菜单样式 - 默认隐藏 */
.dropdown {

     visibility: hidden; 
        position: absolute;
    top: 5%;
    left: -50px; 

}

/* 显示下拉菜单 */
.navbar > li:hover .dropdown {

/*  opacity: 1;*/
  visibility: visible;
  transform: translateY(3px);
        width:  fixed;

}

/* 下拉菜单项垂直排列 */
.dropdown li {

     background:  var(--primary);
/*  display: block;*/
text-align: left; /*将文字靠左*/


}

/* 下拉菜单 */


/*主页 下拉菜单样式 - 默认隐藏 */
.dropdowna {

     visibility: hidden; 
        position: absolute;
    top: 40px;
    left: 80px; 
    
}

/* 显示下拉菜单 */
.navbar > li:hover .dropdowna {

/*  opacity: 1;*/
  visibility: visible;
  transform: translateY(3px);
        width:  fixed;

    
}

/* 下拉菜单项垂直排列 */
.dropdowna li {

     background:  var(--primary);
/*  display: block;*/
text-align: left; /*将文字靠左*/


}

/* 下拉菜单 */

/* 当前菜单项标识 */
.current > a {
  background: #1a7fdb;
  font-weight: bold;
}



.recent-post-item-a {
	
   width: 20px;
  height: auto;
	margin-left: 0px;
}

.recent-post-imageb {
	
/*	float: right;  图片向右浮动 */
	
/*
    width: 1vw;
    height: auto;
*/
/*	margin-right: 300px;*/
	margin-top: -300px;
/*    margin: -180px 5 20px -20px;  上右下左边距 */
/*
	float: right;
    margin-right: 10px;
	margin-top: -80px;
	width: 5%;
*/
}


/*竖式选项卡*/
 /* 选项卡主容器 */
        .vertical-tabs {
            display: flex;
            background: var(--white);
            backdrop-filter: blur(12px);
            padding-left: 130px;
            margin-top: 50px;
/*        
            border-radius: 5px;
            box-shadow: 0 20px 50px rgba(0, 0, 0, 0.4);
            border: 1px solid rgba(255, 255, 255, 0.15);
*/
            overflow: hidden;
            min-height: 600px;
        }
        
        /* 左侧选项卡导航 */
        .tabs-nav {
            width: 380px;
            background: rgba(0, 0, 0, 0.25);
            padding: 2px;  
            border-right: 1px solid rgba(255, 255, 255, 0.1);
        }
        
        .tabs-nav h3 {
            padding: 0 30px 20px;
            font-size: 1.4rem;
            color: var(--primary);
            display: flex;
            align-items: center;
        }
        
        .tabs-nav h3 i {
            margin-right: 12px;
            font-size: 1.3rem;
        }
        
        .tab-list {
           
        }
        
        /* 选项卡标签样式 */
        .tab-item {
            display: flex;
            align-items: center;
            padding: 12px 2px;
           margin: 5px;
            border-radius: 12px;
            cursor: pointer;
            transition: all 0.3s ease;
            position: relative;
            color: var(--primary);
            font-weight: 500;
            font-size: 1.1rem;
        }
        
        .tab-item i {
            font-size: 1.4rem;
            width: 30px;
            margin: 5px;
            transition: all 0.3s ease;
        }
        
        .tab-item::before {
            content: '';
            position: absolute;
            left: 0;
            top: 0;
            width: 4px;
            height: 100%;
            background: transparent;
            border-radius: 0 8px 8px 0;
            transition: all 0.3s ease;
        }
        
        .tab-item:hover {
            background: rgba(255, 255, 255, 0.1);
            color: #fff;
        }
        
        .tab-item:hover i {
            transform: scale(1.1);
        }
        
        .tab-item.active {
            background: rgba(255, 255, 255, 0.15);
            color: #fff;
            font-weight: 600;
        }
        
        .tab-item.active::before {
            background: var(--secondary);
        }
        
        .tab-item.active i {
            color: var(--white);
            transform: scale(1.15);
        }
        
        /* 右侧内容区域 */
        .tabs-content {
            flex: 1;
            padding: 40px;
            position: relative;
            overflow: hidden;
        }
        
        /* 单个选项卡内容 */
        .tab-panel {
            position: absolute;
            top: 40px;
            left: 40px;
            right: 40px;
            opacity: 0;
            transform: translateY(20px);
            transition: all 0.4s ease;
            visibility: hidden;
        }
        
        .tab-panel.active {
            opacity: 1;
            transform: translateY(0);
            visibility: visible;
        }
        
        .tab-panel h2 {
            font-size: 2.2rem;
            margin-bottom: 20px;
            color: var(--gray);
            display: flex;
            align-items: center;
        }
        
        .tab-panel h2 i {
            margin-right: 15px;
            font-size: 1.8rem;
        }
        
        .tab-panel p {
            line-height: 1.8;
            margin-bottom: 25px;
            color: var(--gray);
            font-size: 1.1rem;
        }
        
        /* 内容卡片 */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 25px;
            margin-top: 30px;
        }
        
        .feature-card {
            background: rgba(255, 255, 255, 0.05);
            border-radius: 15px;
            padding: 25px;
            transition: all 0.3s ease;
            border: 1px solid rgba(255, 255, 255, 0.08);
        }
        
        .feature-card:hover {
            transform: translateY(-8px);
            background: rgba(255, 255, 255, 0.1);
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
            border-color: rgba(255, 255, 255, 0.2);
        }
        
        .feature-card i {
            font-size: 2.5rem;
            color: #ff9e64;
            margin-bottom: 20px;
            display: inline-block;
            background: rgba(255, 255, 255, 0.1);
            width: 70px;
            height: 70px;
            line-height: 70px;
            text-align: center;
            border-radius: 50%;
        }
        
        .feature-card h3 {
            font-size: 1.4rem;
            margin-bottom: 15px;
            color: #fff;
        }
        
        .feature-card p {
            font-size: 1rem;
            margin-bottom: 0;
            color: #c0c0c0;
        }
        
        /* 响应式设计 */
        @media (max-width: 900px) {
            .vertical-tabs {
                flex-direction: column;
            }
            
            .tabs-nav {
                width: 100%;
                padding: 20px;
                border-right: none;
                border-bottom: 1px solid rgba(255, 255, 255, 0.1);
            }
            
            .tabs-nav h3 {
                padding: 0 0 15px;
                text-align: center;
                justify-content: center;
            }
            
            .tabs-content {
                padding: 30px 20px;
            }
            
            .tab-panel {
                top: 30px;
                left: 20px;
                right: 20px;
            }
        }
        
        @media (max-width: 600px) {
            h1 {
                font-size: 2.3rem;
            }
            
            .tabs-nav {
                padding: 15px 10px;
            }
            
            .tab-item {
                padding: 15px 20px;
                font-size: 1rem;
            }
            
            .features-grid {
                grid-template-columns: 1fr;
            }
            
            .tab-panel h2 {
                font-size: 1.8rem;
            }
        }
        
        footer {
            text-align: center;
            margin-top: 50px;
            padding: 20px;
            font-size: 1rem;
            color: rgba(255, 255, 255, 0.7);
        }
        
        .code-info {
            background: rgba(255, 255, 255, 0.1);
            border-radius: 12px;
            padding: 20px;
            margin-top: 30px;
            border-left: 4px solid #4db8ff;
        }
        
        .code-info h3 {
            display: flex;
            align-items: center;
            color: #4db8ff;
            margin-bottom: 15px;
        }
        
        .code-info h3 i {
            margin-right: 10px;
        }
        
        .code-block {
            background: #1e293b;
            border-radius: 10px;
            padding: 20px;
            font-family: 'Courier New', monospace;
            margin-top: 15px;
            overflow-x: auto;
        }
        
        .highlight {
            color: #ff9e64;
        }


.blank-position {
	
	       
			min-height: 30px;
            padding: 10px 1px;
            margin-bottom: 10px;
            background: none;
       
	
}

.text_f {

text-align: left;
margin-top:.25rem;font-size:1.1em;color:var(--gray);;
hight:150px;

}

.text_f table {
            width: 60%;
            border-collapse: collapse;
            margin: 30px auto;
/*            margin: 15px 25px;*/
        }


.text_f th {
            padding: 12px 15px;
            text-align: center;
            border-bottom: 1px solid var(--gray);
        }
.text_f td {
            padding: 12px 15px;
            text-align: left;
            border-bottom: 1px solid var(--gray);
        }

.text_f p {
        margin: 10px;
        }

.text_f1 {

text-align: left;
margin-top:.25rem; color:var(--gray);
hight:150px;

}

.text_f1 table {
    
            border-collapse: collapse;
   table-layout: fixed;

        }

.text_f1 table  col:nth-child(1) { width: 5%; }
.text_f1 table  col:nth-child(2) { width: 5%; }
.text_f1 table  col:nth-child(3) { width: 5%; }
.text_f1 table  col:nth-child(4) { width: 85%; }

.text_f1 th {
            padding: 12px 15px;
            text-align: center;
            border-bottom: 1px solid var(--gray);
        }
.text_f1 td {
            padding:auto;
            text-align: left;
            border-bottom: 1px solid var(--gray);
    
        }


.text_f1 p {
        margin: 10px;
        }


.text_f2 {

margin-top:.25rem; color:var(--gray);
hight:150px;
margin-left: 225px;

}

.text_f2 table {
    
            border-collapse: collapse;
   table-layout: fixed;
   margin-top: 35px;

        }


.text_f2 th {
            padding: 12px 15px;
            text-align: center;
            border-bottom: 1px solid ; 
            font-weight: bold;   
            font-size: large;
        }
.text_f2 td {
            padding:auto;
            text-align: left;
            border-bottom: 1px solid var(--gray);
            padding: 10px 35px; /* 上下20px, 左右15px */
    
        }

 td:first-child {  font-weight: bold; }
/* td:nth-child(2) { text-align: center; } 
 td:nth-child(3) { text-align: right; font-family: 'Courier New', monospace; color: #2e7d32; } */

.text_f2 p {
        margin: 10px;
        }

.surfMparts {
/*
    display: grid;
   grid-template-columns: 1fr 1fr 1fr; gap: 1px;
    grid-template-rows:repeat(3, 100px);
*/
/*    adam 格子控制*/

}

.suma {
     display: grid;
   grid-template-columns: auto; gap: 1px;
  
}

.suma h2{
    font-size: 2.8rem;
  color: var(--primary);
      text-align:  center;
}

.suma p{
  color: var(--gray);
    font-size: 1.25em;
}

/*》》》表格排布样式  3排*/
.sumb {
    margin-top: 50px;
     display: grid;
    grid-template-columns: 2fr 2fr 2fr; 
    grid-gap: 2px;
}

.sumb h2{
  color: var(--primary);
      text-align:  center;
}

.sumb p{
  color: var(--gray);
    font-size: 1.25em;
    text-align: center;
}

.sumb img{
/*   align-content: center;*/
    
width: 120%;
}

.sumb4 {
    margin-top: 50px;
     display: grid;
    grid-template-columns: 27% 27% 27% 27%;
    text-align:center;
}

.sumb4 img{
/*   align-content: center;*/
    
width: 100%;

}

.sumb4 h2{
  color: var(--primary);
    

}

.sumb4 h3{

       color: var(--gray);
            font-size: 1.3rem;
            margin-top: 10px;

}

.sumb4 p{
  color: var(--gray);
    font-size: 1.25em;

}

/*《《《《表格排布样式  3排*/


/*》》》表格排布样式  3排*/
.gridass2 {
    
    display: grid;
    grid-template-columns: 50% 30%; gap:-30px;
  margin: 0px;
    padding: 0px;
}

.gridass2 h3a{

    text-align: left;
    
}

.gridass2 p{
  color: var(--gray);
    font-size: 1.25em;
    text-align: left;
}

.gridass2 pd{
    
  color: var(--primary);
    font-size: 1.25em;
    text-align: left;
}


.gridass2 img{
align-items: stretch;
width: 200%;
}


/*《《《《表格排布样式  3排*/

.blankf {
    height: 20px;
    padding: 30px;
}

.sethead {
}

.containera {
    height: 800px;
    margin-top: 400px;
    margin-bottom: 20px;
    padding: auto;
}

.tilea {
    width: 200px;
}


.fixed-height-container {
    height: 300px;
    overflow-y: auto;
    padding: 15px;
}

/* HOME page 迁移 */


      .music_58_4516 {
        display: flex;
        flex-direction: row;
        justify-content: center;
        align-items: flex-start;
        flex-shrink: 0;
        align-self: stretch;
        overflow: hidden;
        opacity: 0.98;
           background-color:var(--light)!important;
        position: relative;
        
      }

      .music_58_5035 {
        width: 1920px;
        height: 63px;
        position: relative;
        flex-shrink: 0;
        margin-top: 0;
        margin-right: 0;
        margin-bottom: 0;
        margin-left: 0;
      }

      .music_59_3651 {
        width: var(--boaderwithd);
        display: flex;
        flex-direction: column;
        justify-content: flex-end;
        align-items: flex-start;
        padding-top: 34px;
        /* padding-bottom: 34px; */
        flex-shrink: 0;
        position: relative;
      }

      .music_59_3656 {
        width: var(--boaderwithd);
        height: 500px;
        display: flex;
        flex-direction: row;
        justify-content: space-between; 
        align-items: flex-start;
        padding-right: 40px;
        padding-left: 40px;
        flex-shrink: 0;
        overflow: hidden;
        opacity: 0.98;
        position: relative;
      }

      .section_one_container {
        width: 947px;
        height: 500px;
        display: flex;
        flex-direction: column;
        justify-content: flex-start;
        align-items: flex-start;
        gap: 45px;
        flex-shrink: 0;
        overflow: hidden;
        opacity: 0.98;
        position: relative;
        margin: 90px;
      }
      .section_one_container_OC {
        width: 947px;
        height: 500px;
        display: flex;
        flex-direction: column;
        justify-content: flex-start;
        align-items: flex-start;
        gap: 45px;
        flex-shrink: 0;
        overflow: hidden;
        opacity: 0.98;
        position: relative;
        margin: 90px;
      }

      .music_59_3659 {
        width: auto;
        height: 75px;
        position: relative;
        font-size: 64px;
        font-family: Roboto;
        font-weight: 700;
        line-height: 75px;
        color:var(--primary);
        white-space: pre;
        margin-top: 45px;
        margin-bottom: -3.5px;
        margin-left: 0;
        margin-right: 201px;
        align-self: stretch;
      }

      .music_59_3659a {

        width: auto;
        height: 75px;
        position: relative;
        font-size: 64px;
        font-family: Roboto;
        font-weight: 700;
        line-height: 75px;
        color:var(--primary);
        /* white-space: pre; */
        margin-bottom: -3.5px;
        margin-left: 0;
        margin-right: 201px;
        align-self: stretch;
        top: -10px;
      }

      .flexContainer_3_music_59_3658 {
        position: relative;
        display: flex;
        width: 947px;
        height: 281px;
        flex-direction: column;
        align-items: flex-start;
        isolation: isolate;
        margin-top: 32px;
        margin-left: 0;
      }

      .music_59_3671 {
        width: 249px;
        height: 67px;
        display: flex;
        flex-direction: column;
        justify-content: flex-start;
        align-items: flex-start;
        padding-top: 16px;
        padding-right: 43px;
        padding-bottom: 16px;
        padding-left: 43px;
        gap: 13px;
        border-radius: 5px;
   
        position: relative;
        z-index: 1;
        margin-top: 214px;
        margin-left: 0;
      }

      .music_59_3672 {
        position: absolute;
        top: 17px;
        left: 0;
        flex-shrink: 0;
        text-align: center;
        font-size: 21px;
        font-family: Roboto;
        font-weight: 400;
        line-height: 32px;
        text-decoration: underline;
        color: #ffffff;
        white-space: pre;
        right: 1px;
        width: max-content;
        margin-left: auto;
        margin-right: auto;
      }

      .music_59_3663 {
        width: 789px;
        position: absolute;
        top: 0;
        left: 0;
        font-size: 27px;
        font-family: Roboto;
        font-weight: 400;
        line-height: 37.3333px;
        color: var(--gray);  /*正文字体颜色*/
        bottom: 19px;
        height: max-content;
        margin-top: auto;
        margin-bottom: auto;
        z-index: 0;
      }

      .music_59_3663a {
        width: 789px;
        position: absolute;
        top: 0;
        left: 0;
        font-size: 27px;
        font-family: Roboto;
        font-weight: 400;
        line-height: 37.3333px;
        color: var(--gray);  /*正文字体颜色*/
        bottom: 19px;
        height: max-content;
        margin-top: auto;
        margin-bottom: auto;
        z-index: 0;
      }

      .music_59_3667 {
        width: 789px;
        position: absolute;
        top: 20px;
        left: 0;
        font-size: 27px;
        font-family: Roboto;
        font-weight: 400;
        line-height: 37.3333px;
        color: var(--gray);  /*正文字体颜色*/
        white-space: pre;
        bottom: 26px;
      }

      .music_59_3676 {
        width: 374px;
        display: flex;
        flex-direction: column;
        justify-content: flex-start;
        align-items: center;
        gap: 45px;
        flex-shrink: 0;
        overflow: hidden;
        opacity: 0.98;
        position: absolute;
        right: 220px;
        top: 30px;
      }

      
      .music_59_3677 {
        width: 374px;
        height: 528px;
        flex-shrink: 0;
        object-fit: cover;
        right: -150px;
      }


      .music_59_3676a {

        display: flex;
        flex-direction: column;
        justify-content: flex-start;
        align-items: center;
        flex-shrink: 0;
        overflow: hidden;
        opacity: 0.98;
        position: absolute;
        right: 160px;
        top: 320px;
      }
        .music_59_3677a {
        width: 600px;
        flex-shrink: 0;
        object-fit: cover;
        border-radius: 20px;
      }


.services-gridb {

            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
            gap: 30px;
            margin-top: 30px;
        }
        
        .service-cardb {
            background: linear-gradient(145deg, #ffffff, #f0f0f0);
            border-radius: 15px;
            overflow: hidden;
            box-shadow: 0 15px 35px rgba(0,0,0,0.2);
            transition: all 0.3s ease;
            display: flex;
            flex-direction: column;
            height: 100%;
        }
        
        .service-cardb:hover {
            transform: translateY(-10px);
            box-shadow: 0 20px 40px rgba(0,0,0,0.3);
        }
        
        .service-image {
            height: 400px;
            width: 100%;
            overflow: hidden;
            position: relative;
        }
        
        .service-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        
        .service-cardb:hover .service-image img {
            transform: scale(1.05);
        }
        
        .service-image::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 60px;
            background: linear-gradient(to top, rgba(204, 204, 204, 0.7), transparent);
        }
        
        .service-content {
            padding: 25px;
            flex-grow: 1;
            display: flex;
            flex-direction: column;
        }
        
        .service-title {
            display: flex;
            align-items: center;
            margin-bottom: 20px;
        }
        
        .service-icon {
            width: 60px;
            height: 60px;
            background: linear-gradient(135deg, #1a2a6c, #b21f1f);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-right: 15px;
            color: white;
            font-size: 1.8rem;
            box-shadow: 0 5px 15px rgba(0,0,0,0.2);
        }
        
        .service-title h2 {
            font-size: 1.8rem;
            color: var(--accent);
            font-weight: 700;
        }
        
        .service-list {
            list-style: none;
            margin-bottom: 25px;
            flex-grow: 1;
        }
        
        .service-list li {
            /* font-size: 1.15rem;
            padding: 12px 0;
            color: #444;
            border-bottom: 1px dashed #ddd;
            font-weight: 500;*/
            display: flex;
            align-items: center; 
        flex-shrink: 0;
        font-size: 22px;
        font-family: Roboto;
        font-weight: 400;
        line-height: 30px;
        color: var(--gray);  /*正文字体颜色*/
        }
        
        .service-list li:last-child {
            border-bottom: none;
        }
        
        .service-list li i {
            margin-right: 10px;
            color: #b21f1f;
            font-size: 0.9rem;
        }
        
        .learn-more {
            display: inline-block;
            width: 100%;
            padding: 14px 25px;

            color: white;
            text-align: center;
            border-radius: 8px;
            text-decoration: none;
            font-weight: 600;
            transition: all 0.3s ease;
            box-shadow: 0 5px 15px rgba(0,0,0,0.2);
            border: none;
            font-size: 1.1rem;
            cursor: pointer;
            margin-top: auto;
        }
        
        .learn-more:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 20px rgba(0,0,0,0.3);
        
        }
        
        .contact-section {
            background: rgba(255,255,255,0.15);
            backdrop-filter: blur(10px);
            border-radius: 15px;
            padding: 30px;
            margin-top: 50px;
            text-align: center;
            box-shadow: 0 10px 30px rgba(0,0,0,0.2);
        }
        
        .contact-section h3 {
            font-size: 2.2rem;
            color: white;
            margin-bottom: 20px;
        }
        
        .contact-section p {
            font-size: 1.2rem;
            color: rgba(255,255,255,0.9);
            max-width: 700px;
            margin: 0 auto 25px;
            line-height: 1.6;
        }
        
        .contact-btn {
            display: inline-block;
            padding: 15px 40px;
            background: white;
            color: #1a2a6c;
            border-radius: 50px;
            text-decoration: none;
            font-weight: 700;
            font-size: 1.2rem;
            transition: all 0.3s ease;
            box-shadow: 0 5px 15px rgba(0,0,0,0.2);
        }
        
        .contact-btn:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 25px rgba(0,0,0,0.3);
            background: #f8f8f8;
        }
        
        footer {
            text-align: center;
            color: rgba(255,255,255,0.7);
            margin-top: 60px;
            font-size: 1rem;
            padding: 20px 0;
        }
        
        @media (max-width: 768px) {
            header h1 {
                font-size: 2.5rem;
            }
            
            .service-title h2 {
                font-size: 1.5rem;
            }
            
            .service-icon {
                width: 50px;
                height: 50px;
                font-size: 1.5rem;
            }
        }

        .container-indshow {
            max-width: 1500px;
            width: 100%;
            padding: 20px;
        }

        /* why us  start */
 .subtitle {
            font-size: 1.1rem;
            color: #5a6a7e;
            max-width: 600px;
            margin: 25px auto 0;
            line-height: 1.6;
            font-weight: 400;
        }
        
        .search-container {
            max-width: 500px;
            margin: 30px auto;
            position: relative;
        }
        
        .search-box {
            width: 100%;
            padding: 14px 20px 14px 48px;
            border-radius: 50px;
            border: 1px solid #cbd6e2;
            font-size: 1rem;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
            transition: all 0.3s ease;
            background: #fff;
        }
        
        .search-box:focus {
            outline: none;
            border-color: #3498db;
            box-shadow: 0 4px 15px rgba(52, 152, 219, 0.2);
        }
        
        .search-icon {
            position: absolute;
            left: 18px;
            top: 50%;
            transform: translateY(-50%);
            color: #7f8c8d;
            font-size: 18px;
        }
        
        .vertical-layout {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 30px;
            margin-top: 20px;
        }
        
        .contact-card {
            width: 320px;
            border-radius: 18px;
            overflow: hidden;
            transition: transform 0.3s, box-shadow 0.3s;
            flex-direction: column;
            margin-left: -850px;
        }
        
        .contact-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 15px 35px rgba(0, 0, 0, 0.12);
        }
        
        .card-header {
            background: linear-gradient(135deg, #3498db, #2c3e50);
            color: white;
            padding: 25px 20px;
            text-align: center;
        }
        
        .card-header i {
            font-size: 2.2rem;
            margin-bottom: 15px;
            display: block;
        }
        
        .card-title {
            font-size: 1.6rem;
            font-weight: 600;
            margin: 0;
        }
        
        .card-subtitle {
            font-size: 0.95rem;
            opacity: 0.85;
            margin-top: 8px;
        }
        
        .contact-items {
            padding: 25px 20px;
            flex-grow: 1;
        }
        
        .contact-item {
            display: flex;
            align-items: center;
            padding: 18px 15px;
            border-radius: 12px;
            margin-bottom: 15px;
            transition: all 0.3s ease;
            background: #f8fafd;
            border: 1px solid #edf2f7;
            text-align: left;
        }
        
        .contact-item:last-child {
            margin-bottom: 0;
        }
        
        .contact-item:hover {
            background: #e3f0ff;
            transform: translateX(5px);
            border-color: #cce0ff;
        }
        
        .contact-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            margin-right: 18px;
            flex-shrink: 0;
        }
        
        .contact-infoa {
            flex-grow: 1;
        }
        
        .contact-name {
            font-weight: 600;
            font-size: 1.05rem;
            /* margin-bottom: 4px; */
            color: #2c3e50;
        }
        
        .contact-value {
            font-size: 0.95rem;
            color: #5a6a7e;
            margin-top: 0px;
        }
        
        .card-footer {
            padding: 20px;
            background: #f9fbfe;
            border-top: 1px solid #edf2f7;
        }
        
        .action-button {
            display: block;
            width: 100%;
            padding: 14px;
            border-radius: 12px;
            background: #3498db;
            color: white;
            font-weight: 500;
            font-size: 1rem;
            border: none;
            cursor: pointer;
            transition: all 0.3s ease;
        }
        
        .action-button:hover {
            background: #2980b9;
            transform: translateY(-2px);
            box-shadow: 0 5px 15px rgba(52, 152, 219, 0.3);
        }
        
        /* 图标颜色 */
        .email-bg { background: rgba(231, 76, 60, 0.12); color: #e74c3c; }
        .phone-bg { background: rgba(46, 204, 113, 0.12); color: #2ecc71; }
        .whatsapp-bg { background: rgba(37, 211, 102, 0.12); color: #25D366; }
        .wechat-bg { background: rgba(7, 193, 96, 0.12); color: #07C160; }
        .qq-bg { background: rgba(18, 183, 245, 0.12); color: #12B7F5; }
        .weibo-bg { background: rgba(231, 76, 60, 0.12); color: #e74c3c; }
        .facebook-bg { background: rgba(24, 119, 242, 0.12); color: #1877F2; }
        .twitter-bg { background: rgba(29, 161, 242, 0.12); color: #1DA1F2; }
        .instagram-bg { background: rgba(228, 64, 95, 0.12); color: #E4405F; }
        .linkedin-bg { background: rgba(10, 102, 194, 0.12); color: #0A66C2; }
        .github-bg { background: rgba(51, 51, 51, 0.12); color: #333; }
        .youtube-bg { background: rgba(255, 0, 0, 0.12); color: #FF0000; }
        .skype-bg { background: rgba(0, 175, 240, 0.12); color: #00AFF0; }
        .telegram-bg { background: rgba(0, 136, 204, 0.12); color: #0088CC; }
        .discord-bg { background: rgba(88, 101, 242, 0.12); color: #5865F2; }
        .slack-bg { background: rgba(74, 21, 75, 0.12); color: #4A154B; }
        .website-bg { background: rgba(46, 204, 113, 0.12); color: #2ecc71; }
        .map-bg { background: rgba(231, 76, 60, 0.12); color: #e74c3c; }
        
        /* 动画 */
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(15px); }
            to { opacity: 1; transform: translateY(0); }
        }
        
        .contact-card:nth-child(1) { animation: fadeIn 0.6s 0.1s both; }
        .contact-card:nth-child(2) { animation: fadeIn 0.6s 0.2s both; }
        .contact-card:nth-child(3) { animation: fadeIn 0.6s 0.3s both; }
        .contact-card:nth-child(4) { animation: fadeIn 0.6s 0.4s both; }
        
        /* 提示信息 */
        .toast {
            position: fixed;
            bottom: 30px;
            left: 50%;
            transform: translateX(-50%);
            background: rgba(44, 62, 80, 0.95);
            color: white;
            padding: 16px 35px;
            border-radius: 12px;
            font-size: 1rem;
            opacity: 0;
            transition: opacity 0.3s;
            z-index: 1000;
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
            pointer-events: none;
        }
        
        .toast.show {
            opacity: 1;
        }
        
        /* 响应式 */
        @media (max-width: 768px) {
            h1 {
                font-size: 2.2rem;
            }
            
            .vertical-layout {
                gap: 25px;
            }
            
            .contact-card {
                width: 100%;
                max-width: 400px;
            }
        }

  /* why us  start */
  .tech-highlights {
            display: flex;
            justify-content: space-around;
            flex-wrap: wrap;
            margin-top: 30px;
            gap: 20px;
        }
        
        .tech-item {
            display: flex;
            align-items: center;
            background: rgba(236, 240, 241, 0.7);
            padding: 15px 25px;
            border-radius: 10px;
            width: 280px;
        }
        
        .tech-icon {
            font-size: 2.5rem;
            color: #3498db;
            margin-right: 20px;
        }
        
        .tech-text {
            font-weight: 500;
            color: #2c3e50;
        }


                .cardwu {
            /* background: rgba(255, 255, 255, 0.95);
            border-radius: 15px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2); */
            padding: 40px;
            margin-bottom: 40px;
            transition: transform 0.3s ease;
        }
        
        .cardwu h2{

                  color: var(--primary);
            font-size: 2.5rem;
            text-align: center;
            margin-bottom: 30px;
            position: relative;
            padding-bottom: 15px;
        }

        /* why us end */

/* flex body */
 .body_board {

          display: flex;
            flex-direction: column;
            align-items: center;

      }        

      .containeradjust {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(500px, 1fr));
            gap: 30px;
            width: 100%;
            max-width: 1700px;
            padding: 20px;
        }
        
        .child {
          
            border-radius: 15px;
            overflow: hidden;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
            transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
            display: flex;
            flex-direction: column;
        }
        
        .child:hover {
            transform: translateY(-10px) scale(1.02);
            box-shadow: 0 15px 40px rgba(0, 0, 0, 0.3);
        }
        
        .child-header {
            padding: 25px 25px 15px;
       
        }
        
        .child-header h2 {
              font-size: 36px;
        font-family: Roboto;
        font-weight: 700;
        line-height: 59.6409px;
        color: var(--primary);
        }
        
        .child-header img {
        border-radius: 15px;
        width: 100%;
        height: 435px;
        flex-shrink: 0;
        object-fit: cover;
        }
        
        
        .child-header p {
        font-size: 24px;
        font-family: Roboto;
        font-weight: 400;
        line-height: 30px;
        color: var(--gray);  /*正文字体颜色*/
        }