* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        .spacer10 { height: 10px; }
        .spacer20 { height: 20px; }
        .spacer30 { height: 30px; }
        .spacer40 { height: 40px; }
        .spacer50 { height: 50px; }
        .spacer60 { height: 60px; }
        .spacer80 { height: 80px; }
        .spacer100 { height: 100px; }
        .width94{ width: 94%; margin: 0 auto;}        
        .width96{ width: 96%; margin: 0 auto;}
        H1,H2,H3,H4,H5,H6{ font-weight: normal;}
        A{ text-decoration: none;}
        body {
            display: flex;
            flex-direction: column; /* 改为列方向 */
            justify-content: flex-start; /* 改为从顶部开始排列 */
            align-items: center; /* 水平居中，但子元素宽度100%时，这个居中不影响 */
            min-height: 100vh;
            background: linear-gradient(135deg, #f5f7fa 0%, #c7d5ed 100%);
           
            /* 设置初始渐变背景，角度为125度，使用了四种颜色 */
            background-image: linear-gradient(125deg, #a8a0ff, #e8e6ff, #e0fff4, #fff7e0);
            /* 将背景大小设置为400%，这样背景图片比容器大得多 */
            background-size: 400% 400%;
            /* 应用名为bganimation的动画，时长15秒，无限循环，缓动函数为ease */
            animation: bganimation 5s ease infinite;
        }
   
        

        /* 定义关键帧动画 */
        @keyframes bganimation {
            0% {
                background-position: 0% 50%; /* 动画起始位置 */
            }
            50% {
                background-position: 100% 50%; /* 动画中间位置 */
            }
            100% {
                background-position: 0% 50%; /* 动画结束位置，回到起始形成循环 */
            }
        }
         /* 固定导航栏 */
         .navbar {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            background: rgba(255, 255, 255, 0.95);
           /* box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);*/
            backdrop-filter: blur(10px);
            z-index: 1000;
            transition: all 0.3s ease;
        }
        
        /* 滚动时的导航栏样式 */
        .navbar.scrolled {
            background: rgba(255, 255, 255, 0.98);
            box-shadow: 0 5px 25px rgba(0, 0, 0, 0.15);
        }
        
        .nav-container {
            max-width: 2000px;
            margin: 0 auto;
            padding: 0 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            height: 60px;
        }
        
        /* 左侧Logo和导航链接 */
        .nav-left {
            display: flex;
            align-items: center;
        }
        
        .logo {
            display: flex;
            align-items: center;
            text-decoration: none;
            margin-right: 40px;
        }
        
        .logo-icon {
            font-size: 24px;
            color: #4b6cb7;
            margin-right: 10px;
        }
        
        .logo-text {
            font-size: 22px;
            font-weight: 700;
            background: linear-gradient(45deg, #4b6cb7, #182848);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
        }
        
        .nav-links {
            display: flex;
            list-style: none;
        }
        
        .nav-links li {
            margin: 0 15px;
        }
        
        .nav-links a {
            text-decoration: none;
            color: #2c3e50;
            font-weight: 400;
            font-size: 14px;
            padding: 10px 0;
            position: relative;
            transition: color 0.3s ease;
        }
        
        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 3px;
            background: linear-gradient(45deg, #9f07f7, #0055ff);
            transition: width 0.3s ease;
            border-radius: 3px;
        }
        
        .nav-links a:hover {
            color: #0055ff;
        }
        
        .nav-links a:hover::after {
            width: 100%;
        }
        
        /* 右侧登录注册按钮 */
        .nav-right {
            display: flex;
            align-items: center;
        }
        
        .auth-buttons {
            display: flex;
            gap: 15px;
        }
        
        .btn {
            padding: 5px 15px;
            border-radius: 40px;
            font-size: 14px;
            font-weight: 600;
            text-decoration: none;
            transition: all 0.3s ease;
            display: inline-block;
        }
        
        .btn-login {
            color: #979797;
            background: transparent;
            border: 1px solid #d3d3d3;
        }
        
        .btn-login:hover {
            background: #9f07f7;
            color: white;
            box-shadow: 0 5px 15px rgba(75, 108, 183, 0.3);
        }
        
       
        
        /* 汉堡菜单（移动端） */
        .menu-toggle {
            display: none;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            width: 30px;
            height: 30px;
            cursor: pointer;
        }
        
        .menu-toggle span {
            width: 25px;
            height: 3px;
            background: #2c3e50;
            margin: 2px 0;
            transition: all 0.3s ease;
            border-radius: 3px;
        }
        
        /* 页面内容 */
        .content {
            max-width:2000px;
            margin: 0 auto;
            padding: 40px 20px;
        }
        
        .section {
            background: white;
            border-radius: 15px;
            padding: 40px;
            margin-bottom: 40px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
        }
        
        .section h2 {
            font-size: 28px;
            margin-bottom: 20px;
            color: #2c3e50;
        }
        
        .section p {
            color: #7f8c8d;
            line-height: 1.8;
            margin-bottom: 20px;
        }
        
        /* 响应式设计 */
        @media (max-width: 992px) {
            .nav-links {
                display: none;
            }
            
            .menu-toggle {
                display: flex;
            }
            
            .nav-left {
                width: 100%;
                justify-content: space-between;
            }
        }
        
        @media (max-width: 576px) {
            .auth-buttons {
                display: none;
            }
            
            .nav-container {
                padding: 0 15px;
            }
            
            .logo-text {
                font-size: 18px;
            }
            
            .logo-icon  img{
                height: 36px;
            }
        }
        
        /* 移动端菜单 */
        .mobile-menu {
            position: fixed;
            top: 80px;
            left: 0;
            width: 100%;
            background: white;
            box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
            padding: 20px;
            display: none;
            z-index: 999;
        }
        
        .mobile-menu.active {
            display: block;
        }
        
        .mobile-nav-links {
            list-style: none;
        }
        
        .mobile-nav-links li {
            margin: 15px 0;
        }
        
        .mobile-nav-links a {
            text-decoration: none;
            color: #2c3e50;
            font-weight: 500;
            font-size: 18px;
            display: block;
            padding: 10px 0;
        }
        
        .mobile-auth {
            margin-top: 20px;
            display: flex;
            flex-direction: column;
            gap: 15px;
        }
        
        .mobile-auth .btn {
            text-align: center;
        }

        .container {
            width: 94%;
            max-width: 2000px;
          
            border-radius: 0px;
            overflow: hidden;
             /* 添加以下属性确保单独一行 */
                /* 添加以下属性确保单独一行 */
                flex-basis: 100%;
                flex-shrink: 0;
        }
        /*banner*/
        .banner-container {
            width: 100%; margin-top: 60px;
            max-width: 2000px;
           /* border-radius: 20px;*/
            overflow: hidden;
            /*box-shadow: 0 25px 50px rgba(0, 0, 0, 0.5); 隐藏阴影*/
            position: relative;
        }
        
        .banner {
            position: relative;
            width: 100%;
            height: 500px;
            display: flex;
            align-items: center;
            overflow: hidden;
        }
       

            .video-background {
                position: absolute;
                top: 0;
                left: 0;
                width: 100%;
                height: 100%;
                object-fit: cover;
                z-index: 1;
                /* 缩小视频尺寸 */
                transform: scale(1); /* 根据实际效果调整这个值 */
                transform-origin: center center;
               
            }
            
       
        /* 图片遮罩层 */
        .overlay {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, rgba(26, 26, 46, 0.85) 0%, rgba(58, 12, 163, 0.6) 100%);
            z-index: 2;
        }
        
        /* 内容区域 */
        .banner-content {
            position: relative;
            z-index: 3;
            padding: 0px;
            width: 94%; margin: 0 auto;
            color: white;
            z-index: 2; /* 确保内容在视频上方 */
        }
        .banner-content-left {width: 50%;float: left;
        }
        .banner-content-right {
            width: 50%;float: right;
        }
        .banner-content-right img {
            width: 100%;
            height: auto;
            }
        /* 渐变标题 */
        .banner-title {
            font-size: 3.5rem;
            font-weight: 500;
            margin-bottom: 30px;
            line-height: 1.2;
            background: linear-gradient(45deg, #da0808, #4ecdc4, #7851e6, #78e5b2);
            background-size: 300% 300%;
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            animation: gradientShift 8s ease infinite;
        }
        
        /* 标题渐变动画 */
        @keyframes gradientShift {
            0% { background-position: 0% 50%; }
            50% { background-position: 100% 50%; }
            100% { background-position: 0% 50%; }
        }
        
        /* 描述文本 */
        .banner-description {
            font-size: 1.2rem;
            line-height: 1.6;
            margin-bottom: 35px;
            color: #666;
            max-width: 90%;
        }
        
        /* 按钮容器 */
        .banner-buttons {
            display: flex;
            gap: 20px;
        }
        
        /* 按钮基础样式 */
        .banner-btn {
            padding: 15px 55px;
           /* border-radius: 50px;*/
            font-size: 0.85rem;
            font-weight: 400;
            text-decoration: none;
            display: inline-block;
            transition: all 0.4s ease;
            border: none;
            cursor: pointer;
            position: relative;
            overflow: hidden;
            z-index: 1;
        }
        
        .banner-btn::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            z-index: -1;
            transition: transform 0.6s ease;
        }
        
        /* 第一个按钮样式 */
        .banner-btn-primary {
            color: white;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
        }
        
        .banner-btn-primary::before {
            background: linear-gradient(45deg, #2575fc, #6a11cb);
        }
        
        .banner-btn-primary:hover::before {
            transform: scale(1.05);
        }
        
        .banner-btn-primary:hover {
            transform: translateY(0px);
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
        }
        
        /* 第二个按钮样式 */
        .banner-btn-secondary {
            color: white;
            background: rgba(255, 255, 255, 0.15);
            backdrop-filter: blur(10px);
            border: 1px solid rgba(255, 255, 255, 0.2);
        }
        
        .banner-btn-secondary::before {
            background: linear-gradient(45deg, #11998e, #38ef7d);
            opacity: 0;
            transition: opacity 0.4s ease;
        }
        
        .banner-btn-secondary:hover::before {
            opacity: 1;
        }
        
        .banner-btn-secondary:hover {
            transform: translateY(0px);
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
        }
        /*banner end*/
        /* 主布局 */
        .main-layout {
            display: flex;  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
            width: 100%;
        }
        
        .left-panel {
            width: 38.2%;
            background: linear-gradient(to bottom right, #ffffff, #f5f1f8);
            color: #333333;
            padding: 40px;
            display: flex;
            flex-direction: column;
            justify-content: top;
        }
        
        .right-panel {
            width: 61.8%;
            display: flex;
        }
        
        /* 右侧子面板 */
        .right-subpanel {
            width: 50%;
            display: flex;
            flex-direction: column;
        }
        
        /* 模块样式 */
        .module {
            padding: 30px;
            border-bottom: 1px solid rgba(0, 0, 0, 0.05);
            transition: all 1.0s ease;
            flex: 1;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }
        
        .module:hover {
            background-color: #f8f9fa;
            /*transform: translateY(-2px);  位移距离*/
            background: linear-gradient(to bottom right, #eff6fe, #f0f0fe);
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
          
            /* 设置初始渐变背景，角度为125度，使用了四种颜色 */
            background-image: linear-gradient(125deg, #f4f9ff, #f2f1ff, #ecf6ff, #f4f9ff);
            /* 将背景大小设置为400%，这样背景图片比容器大得多 */
            background-size: 400% 400%;
            /* 应用名为bganimation的动画，时长15秒，无限循环，缓动函数为ease */
            animation: bganimation 15s ease infinite;


        }
        
        .module:nth-child(odd) {
            background-color: #fafbfc;
        }
        
        .module:nth-child(even) {
            background-color: #ffffff;
        }
        
        .module-title {
            font-size: 1.2rem;
            font-weight: 500;
            margin-bottom: 15px;
            color: #2c3e50;
        }
        .module:hover .module-title{
            color: #2575fc;
        }
        .module-content {
            color: #7f8c8d;
            font-size: 0.85rem;
            line-height: 1.8;
            margin-bottom: 15px;
        }
        
        /* 左侧面板内容 */
        .left-title {
            font-size: 1.8rem;
            margin-bottom: 20px;
            font-weight: normal;
        }
        
        .left-content {
            font-size: 1.1rem;
            line-height: 1.7;
            margin-top: 30px;
        }
        .left-content img {
           width: 90%;
        }
        
        .left-stats {
            display: flex;
            gap: 20px;
            margin-bottom: 20px;
        }
        
        .stat-item {
            text-align: center;
        }
        
        .stat-value {
            font-size: 1.6rem; color: #2575fc;
            font-weight: 700;
            margin-bottom: 5px;
        }
        
        .stat-label {
            font-size: 0.9rem; color: #2575fc;
            opacity: 0.8;
        }
       
        /*四等份*/    
        .quad-container {
            display: flex;
            width: 100%;
            flex-wrap: wrap;
            position: relative; 
            background: #FFF;
            margin-top: -65px;
            z-index: 999;
            
        }
        
        /* 灰色间隔线 */
        .divider-vertical {
            position: absolute;
            top: 90%; /* 从顶部50%的位置开始 */
            transform: translateY(-50%); /* 只垂直偏移，不移水平 */
            height: 60%; /* 调整高度 */
            width: 1px;
            background: #e0e0e0;
            margin-top: 65px;
        }
        
        .divider-vertical:nth-child(1) {
            left: 25%;
        }
        
        .divider-vertical:nth-child(2) {
            left: 50%;
        }
        
        .divider-vertical:nth-child(3) {
            left: 75%;
        }
        
        .divider-horizontal {
            position: absolute;
            left: 0;
            right: 0;
            height: 1px;
            background: #e0e0e0;
            display: none;
        }
        
        .quad-item {
            
            width: 25%;
            padding: 20px 30px;
            text-align: center;
            transition: all 0.4s ease;
            position: relative;
            z-index: 1;
            border-bottom: 1px solid #e0e0e0;
          
        }
        
        .quad-item:nth-child(4n+1) {
            border-left: none;
        }
        
        .quad-item::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(135deg, rgba(255, 255, 255, 0.1) 0%, rgba(255, 255, 255, 0.05) 100%);
            z-index: -1;
            opacity: 0;
            transition: opacity 0.4s ease;
        }
        
        .quad-item:hover::before {
            opacity: 1;
        }
        /*
        .quad-item:nth-child(1) {
            background: #ff9966;
        }
        
        .quad-item:nth-child(2) {
            background: #ff6b6b;
        }
        
        .quad-item:nth-child(3) {
            background: #4ecdc4;
        }
        
        .quad-item:nth-child(4) {
            background: #556270;
        }
        */
        .quad-item:hover {
           /* transform: translateY(-5px);*/
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
        }
        
        .quad-icon {
            font-size: 2.8rem;
            margin-bottom: 25px;
            color: #1a65ed;
            transition: all 0.4s ease;
            text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
        }
        
        .quad-item:hover .quad-icon {
            transform: scale(1.15) rotate(5deg);
        }
        
        .quad-title {
            font-size: 1.2rem;
            margin-bottom: 18px;
            color: #1a65ed;
            font-weight: 500; text-align: left;
        }
        
        .quad-content {
            color: rgba(146, 146, 146, 0.9);
            line-height: 1.7;
            font-size: 0.85rem; text-align: left;
        }
        
        .quad-btn {
            display: inline-block;
            padding: 12px 25px;
            background: rgba(255, 255, 255, 0.2);
            color: white;
            text-decoration: none;
            border-radius: 30px;
            transition: all 0.3s ease;
            border: 1px solid rgba(255, 255, 255, 0.3);
            font-weight: 500;
        }
        
        .quad-btn:hover {
            background: rgba(255, 255, 255, 0.3);
            transform: translateY(-3px);
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
        }
    /* 商标网格布局 */
    .brands-grid {
            display: grid;
            grid-template-columns: repeat(6, 1fr);
            grid-template-rows: repeat(3, 1fr);
            gap: 1px;
            background-color: #e0e0e0; /* 灰色间隔线颜色 */
            padding: 1px; /* 创建边框效果 */
        }
        
        .brand-item {
            background: white;
            height: 180px;
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            padding: 2px;
            transition: all 0.3s ease;
            position: relative;
            overflow: hidden;
        }
        
        .brand-item:hover {
            background: #f8f9fa;
           /* transform: translateY(-3px);*/
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
            z-index: 2;
            background: linear-gradient(to bottom right, #eff6fe, #f0f0fe);
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
          
            /* 设置初始渐变背景，角度为125度，使用了四种颜色 */
            background-image: linear-gradient(125deg, #f4f9ff, #f2f1ff, #ecf6ff, #f4f9ff);
            /* 将背景大小设置为400%，这样背景图片比容器大得多 */
            background-size: 400% 400%;
            /* 应用名为bganimation的动画，时长15秒，无限循环，缓动函数为ease */
            animation: bganimation 10s ease infinite;
        }
        
        .brand-logo {
            width: 70px;
            height: 70px;
            display: flex;
            justify-content: center;
            align-items: center;
            font-size: 2.5rem;
            margin-bottom: 10px;
            color: #4b6cb7;
            transition: all 0.3s ease;
        }
        
        .brand-item:hover .brand-logo {
            transform: scale(1.15);
        }
        
        .brand-name {
            font-size: 1rem;
            font-weight: 600;
            color: #2c3e50;
            margin-bottom: 5px;
            text-align: center;
        }
        
        .brand-desc {
            font-size: 0.85rem;
            color: #7f8c8d;
            text-align: center;
            line-height: 1.4;
        }
        
        /* 商标颜色变化 */
        .brand-item:nth-child(1) .brand-logo { color: #ff6b6b; }
        .brand-item:nth-child(2) .brand-logo { color: #4ecdc4; }
        .brand-item:nth-child(3) .brand-logo { color: #ff9f68; }
        .brand-item:nth-child(4) .brand-logo { color: #556270; }
        .brand-item:nth-child(5) .brand-logo { color: #6b5b95; }
        .brand-item:nth-child(6) .brand-logo { color: #88b04b; }
        .brand-item:nth-child(7) .brand-logo { color: #ef6f6c; }
        .brand-item:nth-child(8) .brand-logo { color: #5b5ea6; }
        .brand-item:nth-child(9) .brand-logo { color: #55b4b0; }
        .brand-item:nth-child(10) .brand-logo { color: #ff6f61; }
        .brand-item:nth-child(11) .brand-logo { color: #6a6b83; }
        .brand-item:nth-child(12) .brand-logo { color: #c3447a; }
        .brand-item:nth-child(13) .brand-logo { color: #9bb7d4; }
        .brand-item:nth-child(14) .brand-logo { color: #e15d44; }
        .brand-item:nth-child(15) .brand-logo { color: #7bc4c4; }
        .brand-item:nth-child(16) .brand-logo { color: #bfd641; }
        .brand-item:nth-child(17) .brand-logo { color: #55b4b0; }
        .brand-item:nth-child(18) .brand-logo { color: #ff6f61; }
        

      
        /*service*/
        .service-container {
            width: 100%;
            
            
            /*background: white;box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);*/
            overflow: hidden;
        }
      
        
        .service-grid {
            display: flex;
            flex-wrap: wrap;
            
        }
        
        .service-item {
            flex: 1;
            min-width: 25%;
            padding: 30px 25px;
            text-align: center;
            position: relative;
            transition: all 0.3s ease;background: rgba(255, 255, 255, 0.6);
        }
        
        /* 添加竖线分割 */
        .service-item:not(:last-child)::after {
            content: '';
            position: absolute;
            top: 50%;
            right: 0;
            transform: translateY(-50%);
            height: 70%;
            width: 1px;
            background: linear-gradient(to bottom, 
                        transparent 0%, 
                        rgba(0, 0, 0, 0.2) 90%, 
                        transparent 100%);
        }
        
        
        .service-title {
            font-size: 1.0rem;
            margin-bottom: 15px;
            color: #2c3e50;
            font-weight: 600;
        }
        
        .service-desc {
            color: #7f8c8d;
            line-height: 1.6;
            font-size: 0.85rem;
        }
        
        /* 悬停效果 */
        .service-item:hover {
            /*transform: translateY(-5px);*/
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
            border-radius: 0px;
            background: #f8fafd;
        }
        
 /* 网站底部样式 */
  /* 网站底部样式 */
  .site-footer {
            background: #2c3e50;
            color: #ecf0f1;
            margin-top: auto;
            width: 100%;
            
   
        }
        
        .footer-container {
            display: flex;
            flex-wrap: wrap;
            max-width: 2000px;
            margin: 0 auto;
            padding: 40px 20px;
        }
        
        /* 三栏布局 */
        .footer-left {
            flex: 1;
            min-width: 200px;
            padding: 15px;
        }
        
        .footer-center {
            flex: 2;
            min-width: 350px;
            padding: 15px;
            display: flex;
            flex-wrap: wrap;
        }
        
        .footer-right {
            flex: 1;
            min-width: 250px;
            padding: 15px;
        }
        
        /* 中间部分分为两列 */
        .footer-center-column {
            flex: 1;
            min-width: 150px;
            padding: 0 10px;
        }
        
        .footer-logo {
            margin-bottom: 20px;
        }
        
        .footer-logo img {
            max-width: 150px;
            height: auto;
            filter: brightness(0) invert(1);
        }
        
        .footer-logo p {
            margin-top: 15px;
            color: #bdc3c7;
            font-size: 0.95rem;
            line-height: 1.6;
        }
        
        .footer-title {
            font-size: 1.2rem;
            margin-bottom: 20px;
            position: relative;
            padding-bottom: 10px;
            font-weight: 600;
        }
        
        .footer-title::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 40px;
            height: 2px;
            background: #3498db;
        }
        
        .footer-links {
            list-style: none;
        }
        
        .footer-links li {
            margin-bottom: 12px;
        }
        
        .footer-links a {
            color: #bdc3c7;
            text-decoration: none;
            transition: all 0.3s ease;
            display: flex;
            align-items: center;
        }
        
        .footer-links a:hover {
            color: #3498db;
            transform: translateX(5px);
        }
        
        .footer-links i {
            margin-right: 8px;
            font-size: 0.8rem;
        }
        
        .footer-submenu {
            list-style: none;
            margin-top: 5px;
            padding-left: 20px;
        }
        
        .footer-submenu li {
            margin-bottom: 8px;
            position: relative;
        }
        
        .footer-submenu li::before {
            content: '→';
            position: absolute;
            left: -15px;
            color: #3498db;
            font-size: 0.8rem;
        }
        
        .footer-submenu a {
            color: #95a5a6;
            font-size: 0.9rem;
            transition: all 0.3s ease;
        }
        
        .footer-submenu a:hover {
            color: #3498db;
        }
        
        .qrcode-container {
            display: flex;
            flex-direction: column;
            align-items: center;
        }
        
        .qrcode {
            width: 120px;
            height: 120px;
            background: #fff;
            padding: 10px;
            border-radius: 5px;
            margin-bottom: 15px;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        
        .qrcode img {
            max-width: 100%;
            height: auto;
        }
        
        .qrcode-text {
            text-align: center;
            font-size: 0.9rem;
            color: #bdc3c7;
        }
        
        .footer-bottom {
            background: #1a252f;
            padding: 20px 0;
            text-align: center;
            width: 100%;
        }
        .footer-bottom A{ color: #95a5a6;}
        .footer-bottom-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        
        .footer-bottom p {
            color: #95a5a6;
            font-size: 0.9rem;  text-align: center;
            margin: 0;
        }
          
        .footer-bottom-right {
            display: flex; margin: 0 auto;
            flex-wrap: wrap; line-height: 1.8rem; padding: 20px 0;
        }
        
        .footer-bottom-links {
            display: flex; margin:0 auto ;
            list-style: none;
            flex-wrap: wrap;
            justify-content: center;
        }
        
        .footer-bottom-links li {
            margin: 0 10px;
        }
        
        .footer-bottom-links a {
            color: #95a5a6;
            text-decoration: none;
            font-size: 0.9rem;
            transition: all 0.3s ease;
        }
        
        .footer-bottom-links a:hover {
            color: #3498db;
        }
        
        /* 响应式设计 */
        @media (max-width: 992px) {
            .footer-center {
                flex: 3;
            }
            
            .footer-center-column {
                min-width: 45%;
            }
        }
        
        @media (max-width: 768px) {
            .footer-left,
            .footer-center,
            .footer-right {
                flex: 0 0 100%;
            }
            
            .footer-center-column {
                min-width: 100%;
                margin-bottom: 20px;
            }
        }
        
        .social-icons {
            display: flex;
            margin-top: 20px;
        }
        
        .social-icons a {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.1);
            color: #ecf0f1;
            margin-right: 10px;
            transition: all 0.3s ease;
        }
        
        .social-icons a:hover {
            background: #3498db;
            transform: translateY(-3px);
        }
        
        .layout-indicator {
            position: fixed;
            bottom: 10px;
            right: 10px;
            background: rgba(0, 0, 0, 0.7);
            color: white;
            padding: 5px 10px;
            border-radius: 5px;
            font-size: 12px;
            z-index: 1000;
        }
        

        /* 响应式设计 */
        @media (max-width: 1200px) {
            .container {
                width: 98%;
            }
        }
        
        @media (max-width: 992px) {
            .main-layout {
                flex-direction: column;
            }
            
            .left-panel, .right-panel {
                width: 100%;
            }
            
            .left-panel {
                padding: 30px;
            }
            .quad-item {
                width: 50%;
                border-bottom: 1px solid #e0e0e0;
            }
            
            .quad-item:nth-child(odd) {
                border-right: 1px solid #e0e0e0;
            }
            
            .quad-item:nth-child(even) {
                border-right: none;
            }
            
            .divider-vertical {
                display: none;
            }
            
            .divider-horizontal {
                display: block;
            }
            
            .divider-horizontal:nth-child(1) {
                top: 50%;
            }
            .brands-grid {
                grid-template-columns: repeat(3, 1fr);
                grid-template-rows: repeat(6, 1fr);
            }
            /*销售网络*/
            .map-banner {
                flex-direction: column;
                min-height: 600px; border: 0; background-color: #FFF;
            }
            .service-item {
                flex: 0 0 50%;
            }
            
            .service-item:nth-child(2)::after {
                display: none;
            }
            
            .service-item:nth-child(odd)::after {
                content: '';
                position: absolute;
                top: 50%;
                right: 0;
                transform: translateY(-50%);
                height: 70%;
                width: 1px;
                background: linear-gradient(to bottom, 
                            transparent 0%, 
                            rgba(0, 0, 0, 0.1) 50%, 
                            transparent 100%);
            }
            
            .service-item:nth-child(even)::after {
                display: none;
            }
        }

        @media (max-width: 768px) {
            .right-panel {
                flex-direction: column;
            }
            
            .right-subpanel {
                width: 100%;
            }
           
            .module {
                padding: 20px;
            }
            
            .left-title {
                font-size: 1.2rem;
            }
            .quad-item {
                width: 100%;
                border-right: none !important;
                border-bottom: 1px solid #e0e0e0;
            }
            
            .quad-item:last-child {
                border-bottom: none;
            }
            .brands-grid {
                grid-template-columns: repeat(2, 1fr);
                grid-template-rows: repeat(8, 1fr);
            }
            .service-item {
                flex: 0 0 100%;
            }
            
            .service-item::after {
                display: none !important;
            }
            
            .service-item:not(:last-child) {
                border-bottom: 1px solid rgba(0, 0, 0, 0.1);
            }
        }

        @media (min-width: 2560px) {
            .container {
                width: 2000px;
            }
            
        }

         /* 灰色间隔线 */
         .divider-vertical {
            position: absolute;
            top: 0;
            bottom: 0;
            width: 1px;
            background: #e0e0e0;
        }
        
        .divider-vertical:nth-child(1) {
            left: 25%;
        }
        
        .divider-vertical:nth-child(2) {
            left: 50%;
        }
        
        .divider-vertical:nth-child(3) {
            left: 75%;
        }
        
        .divider-horizontal {
            position: absolute;
            left: 0;
            right: 0;
            height: 1px;
            background: #e0e0e0;
            display: none;
        }


        /* 页面标题区域样式 */
.page-header {
    background-image: url('images/banner.png'); /* 背景图路径 */
    background-size: cover; /* 背景图覆盖整个区域 */
    background-position: center center; /* 背景图居中 */
    background-repeat: no-repeat; /* 背景图不重复 */
    padding: 80px 0%; /* 上下内边距 */
    color: #222; /* 文字颜色 */
    text-align: left; /* 文字居中 */
    position: relative; /* 相对定位 */
    margin-bottom: 40px; /* 底部外边距 */ 
    width: 100%; margin-top: 60px;
}

/* 背景遮罩层（可选，用于提高文字可读性）*/
.page-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
   /*  background-color: rgba(0, 0, 0, 0.3); 半透明黑色遮罩 */
    z-index: 1;
}

.page-header .container {
    position: relative; /* 相对定位，确保内容在遮罩层之上 */
    z-index: 2; /* 确保内容在遮罩层之上 */
}

.page-title {
    font-size: 2.5rem; /* 标题字体大小 */
    font-weight: bold; /* 标题字体粗细 */
    margin-bottom: 15px; /* 标题底部外边距 */ margin-left: 4%;
}

.page-subtitle {
    font-size: 1.2rem; /* 副标题字体大小 */
    opacity: 0.9; /* 副标题透明度 */
    max-width: 800px; /* 副标题最大宽度 */margin-left: 4%;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .page-header {
        padding: 60px 0; /* 移动端减少上下内边距 */
    }
    
    .page-title {
        font-size: 2rem; /* 移动端标题字体大小 */
    }
    
    .page-subtitle {
        font-size: 1rem; /* 移动端副标题字体大小 */
    }
}

/*关于我们*/
.solution-intro{ background-color: #FFF; padding: 30px;border-radius: 15px;}
.team-section .values-section{ background-color: #FFF; padding: 30px;border-radius: 15px;}





        /* 页面标题区域样式 */
        .bottom-header {
            background-image: url('images/bg2.jpg'); /* 背景图路径 */
            background-size: cover; /* 背景图覆盖整个区域 */
            background-position: center center; /* 背景图居中 */
            background-repeat: no-repeat; /* 背景图不重复 */
            padding: 80px 0%; /* 上下内边距 */
            color: #222; /* 文字颜色 */
            text-align: left; /* 文字居中 */
            position: relative; /* 相对定位 */
            width: 100%; 
        }
        
        /* 背景遮罩层（可选，用于提高文字可读性）*/
        .bottom-header::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
           /*  background-color: rgba(0, 0, 0, 0.3); 半透明黑色遮罩 */
            z-index: 1;
        }
        
        .bottom-header .container {
            position: relative; /* 相对定位，确保内容在遮罩层之上 */
            z-index: 2; /* 确保内容在遮罩层之上 */
        }
        .bottom-header p{margin-left: 4%;}
        .bottom-title {
            font-size: 2.5rem; /* 标题字体大小 */
            font-weight: bold; /* 标题字体粗细 */
            margin-bottom: 15px; /* 标题底部外边距 */ margin-left: 4%;
        }
        
        .bottom-subtitle {
            font-size: 1.2rem; /* 副标题字体大小 */
            opacity: 0.9; /* 副标题透明度 */
            max-width: 800px; /* 副标题最大宽度 */margin-left: 4%;
        }
         /* 按钮基础样式 */
         .bottom-btn {
            padding: 15px 55px;
           /* border-radius: 50px;*/
            font-size: 0.85rem;
            font-weight: 400;
            text-decoration: none;
            display: inline-block;
            transition: all 0.4s ease;
            border: none;
            cursor: pointer;
            position: relative;
            overflow: hidden;margin-left: 4%;margin-top:20px;
            z-index: 1;
        }
        
        .bottom-btn::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            z-index: -1;
            transition: transform 0.6s ease;
        }/* 第一个按钮样式 */
        .banner-btn-primary {
            color: white;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
        }
        
        .banner-btn-primary::before {
            background: linear-gradient(45deg, #2575fc, #6a11cb);
        }
        
        .banner-btn-primary:hover::before {
            transform: scale(1.05);
        }
        
        .banner-btn-primary:hover {
            transform: translateY(0px);
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
        }
        
        /* 响应式调整 */
        @media (max-width: 768px) {
            .bottom-header {
                padding: 60px 0; /* 移动端减少上下内边距 */
            }
            
            .bottom-title {
                font-size: 2rem; /* 移动端标题字体大小 */
            }
            
            .bottom-subtitle {
                font-size: 1rem; /* 移动端副标题字体大小 */
            }
        }
        

        .stats-table {
            width: 100%;
            max-width: 1200px;
            background-color: white;
            border-radius: 12px;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
            overflow: hidden;
            border-collapse: collapse;
        }
        
        .stats-table tr {
            border-bottom: 1px solid #f0f0f0;
        }
        
        .stats-table tr:last-child {
            border-bottom: none;
        }
        
        .stats-table td {
            padding: 40px 30px;
            text-align: center;
            vertical-align: top;
            border-right: 1px solid #f0f0f0;
        }
        
        .stats-table td:last-child {
            border-right: none;
        }
        
        .stat-number {
            font-size: 44px;
            font-weight: 700;
            color: #1a1a1a;
            margin-bottom: 15px;
            line-height: 1.1;
        }
        
        .stat-desc {
            font-size: 16px;
            color: #333;
            line-height: 1.6;
        }
        
        /* 响应式设计 */
        @media (max-width: 1024px) {
            .stats-table {
                display: block;
            }
            
            .stats-table tr {
                display: flex;
                flex-wrap: wrap;
                border-bottom: none;
            }
            
            .stats-table td {
                flex: 0 0 50%;
                border-right: 1px solid #f0f0f0;
                border-bottom: 1px solid #f0f0f0;
            }
            
            .stats-table td:nth-child(2n) {
                border-right: none;
            }
            
            .stats-table tr:last-child td:nth-last-child(-n+2) {
                border-bottom: none;
            }
        }
        
        @media (max-width: 640px) {
            .stats-table td {
                flex: 0 0 100%;
                border-right: none;
            }
            
            .stats-table td:nth-child(2n) {
                border-right: none;
            }
            
            .stats-table td:not(:last-child) {
                border-bottom: 1px solid #f0f0f0;
            }
            
            .stat-number {
                font-size: 36px;
            }
            
            .stat-desc {
                font-size: 15px;
            }
        }


        #backToTop {
            position: fixed;
            bottom: 40px;
            right: 40px;
            width: 50px;
            height: 50px;
            background-color: #2c7dfa;
            color: white;
            border: none;
            border-radius: 50%;
            cursor: pointer;
            opacity: 0;
            visibility: hidden;
            transition: all 0.3s ease;
            z-index: 1000;
            box-shadow: 0 5px 15px rgba(44,125,250,0.3);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
        }
        
        #backToTop:hover {
            background-color: #1a5feb;
            transform: translateY(-3px);
        }
        
        #backToTop.show {
            opacity: 1;
            visibility: visible;
        }