/* 基础样式 */
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Microsoft YaHei', 'Segoe UI', sans-serif;
        }
        
        :root {
            --primary-color: #2c3e50;
            --secondary-color: #3498db;
            --accent-color: #e74c3c;
            --light-gray: #f5f7fa;
            --dark-gray: #7f8c8d;
            --border-color: #e1e8ed;
            --floor1-color: #3498db;
            --floor2-color: #2ecc71;
            --floor3-color: #9b59b6;
        }
        
        body {
            color: #333;
            line-height: 1.6;
            background-color: #f9f9f9;
            font-size: 14px;
        }
        
       .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 15px;
        }
        
        /* 头部样式 */
        
        /* EPS展厅页面特定样式 */
        .eps-banner {
            background: linear-gradient(135deg, var(--floor1-color) 0%, var(--floor3-color) 100%);
            color: white;
            padding: 60px 0;
            text-align: center;
            margin-bottom: 40px;
        }
        
        .eps-banner h1 {
            font-size: 42px;
            margin-bottom: 15px;
            text-shadow: 0 2px 4px rgba(0,0,0,0.3);
        }
        
        .eps-banner p {
            font-size: 18px;
            max-width: 800px;
            margin: 0 auto;
            opacity: 0.9;
        }
        
        .breadcrumb {
            background-color: var(--light-gray);
            padding: 15px 0;
            margin-bottom: 30px;
            border-bottom: 1px solid var(--border-color);
        }
        
        .breadcrumb .container {
            display: flex;
            align-items: center;
        }
        
        .breadcrumb a {
            color: var(--secondary-color);
            text-decoration: none;
        }
        
        .breadcrumb span {
            margin: 0 8px;
            color: var(--dark-gray);
        }
        
        /* 楼层导航 */
        .floor-nav {
            position: sticky;
            top: 60px;
            background: white;
            box-shadow: 0 4px 12px rgba(0,0,0,0.08);
            z-index: 999;
            margin-bottom: 30px;
        }
        
        .floor-nav-container {
            display: flex;
            justify-content: center;
            padding: 15px 0;
        }
        
        .floor-nav-item {
            padding: 12px 30px;
            margin: 0 10px;
            border-radius: 30px;
            background-color: var(--light-gray);
            color: var(--primary-color);
            text-decoration: none;
            font-weight: 600;
            transition: all 0.3s;
            display: flex;
            align-items: center;
			margin: 5px 15px;/* cg增加样式保持兼容性 */
        }
        
        .floor-nav-item:hover {
            transform: translateY(-3px);
            box-shadow: 0 5px 15px rgba(0,0,0,0.1);
        }
        
        .floor-nav-item.active {
            color: white;
        }
        
        .floor-nav-item.floor1.active {
            background-color: var(--floor1-color);
        }
        
        .floor-nav-item.floor2.active {
            background-color: var(--floor2-color);
        }
        
        .floor-nav-item.floor3.active {
            background-color: var(--floor3-color);
        }
        
        .floor-icon {
            margin-right: 8px;
            font-size: 18px;
        }
        
        /* 楼层内容 */
        .floor-section {
            margin-bottom: 80px;
            scroll-margin-top: 120px;
        }
        
        .floor-header {
            display: flex;
            align-items: center;
            margin-bottom: 40px;
            padding-bottom: 15px;
            border-bottom: 3px solid;
        }
        
        .floor-header.floor1 {
            border-color: var(--floor1-color);
        }
        
        .floor-header.floor2 {
            border-color: var(--floor2-color);
        }
        
        .floor-header.floor3 {
            border-color: var(--floor3-color);
        }
        
        .floor-number {
            width: 70px;
            height: 70px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 28px;
            font-weight: bold;
            color: white;
            margin-right: 25px;
        }
        
        .floor-number.floor1 {
            background-color: var(--floor1-color);
        }
        
        .floor-number.floor2 {
            background-color: var(--floor2-color);
        }
        
        .floor-number.floor3 {
            background-color: var(--floor3-color);
        }
        
        .floor-title h2 {
            font-size: 32px;
            color: var(--primary-color);
            margin-bottom: 8px;
        }
        
        .floor-title p {
            color: var(--dark-gray);
            font-size: 16px;
        }
        
        /* 产品展示 */
        .products-container {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
            gap: 30px;
        }
        
        .product-card {
            background-color: white;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.08);
            transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
        }
        
        .product-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
        }
        
        .product-img {
            height: 240px;
            overflow: hidden;
            position: relative;
        }
        
        .product-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.6s ease;
        }
        
        .product-card:hover .product-img img {
            transform: scale(1.08);
        }
        
        .product-tag {
            position: absolute;
            top: 15px;
            left: 15px;
            background-color: rgba(52, 152, 219, 0.9);
            color: white;
            padding: 5px 15px;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 600;
        }
        
        .product-content {
            padding: 25px;
        }
        
        .product-title {
            font-size: 22px;
            color: var(--primary-color);
            margin-bottom: 15px;
            font-weight: 700;
        }
        
        .product-description {
            color: var(--dark-gray);
            margin-bottom: 20px;
            line-height: 1.7;
        }
        
        .product-usage {
            background-color: var(--light-gray);
            padding: 18px;
            border-radius: 8px;
            border-left: 4px solid var(--secondary-color);
        }
        
        .product-usage h4 {
            color: var(--primary-color);
            margin-bottom: 10px;
            font-size: 16px;
        }
        
        .product-usage ul {
            padding-left: 20px;
            color: var(--dark-gray);
        }
        
        .product-usage li {
            margin-bottom: 5px;
        }
        
        /* 楼层切换按钮 */
        .floor-navigation {
            display: flex;
            justify-content: space-between;
            margin-top: 40px;
            padding-top: 30px;
            border-top: 1px solid var(--border-color);
        }
        
        .floor-btn {
            padding: 12px 30px;
            border-radius: 30px;
            text-decoration: none;
            font-weight: 600;
            display: flex;
            align-items: center;
            transition: all 0.3s;
        }
        
        .floor-btn.prev {
            background-color: var(--light-gray);
            color: var(--primary-color);
        }
        
        .floor-btn.next {
            background-color: var(--secondary-color);
            color: white;
        }
        
        .floor-btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 5px 15px rgba(0,0,0,0.1);
        }
        
        /* 返回顶部按钮 */
        .back-to-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            width: 50px;
            height: 50px;
            background-color: var(--secondary-color);
            color: white;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            text-decoration: none;
            box-shadow: 0 4px 12px rgba(52, 152, 219, 0.3);
            transition: all 0.3s;
            z-index: 99;
        }
        
        .back-to-top:hover {
            background-color: var(--primary-color);
            transform: translateY(-5px);
        }
        
        /* 页脚样式 */
        footer {
            background-color: var(--primary-color);
            color: white;
            padding: 40px 0 0;
            margin-top: 80px;
        }
        
        .footer-content {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            margin-bottom: 30px;
        }
        
        .footer-column {
            flex: 1;
            min-width: 250px;
            margin-bottom: 30px;
            padding-right: 30px;
        }
        
        .footer-column h4 {
            font-size: 20px;
            margin-bottom: 20px;
            color: white;
            position: relative;
            padding-bottom: 10px;
        }
        
        .footer-column h4:after {
            content: '';
            position: absolute;
            width: 40px;
            height: 2px;
            background-color: var(--secondary-color);
            bottom: 0;
            left: 0;
        }
        
        .footer-links {
            list-style: none;
        }
        
        .footer-links li {
            margin-bottom: 12px;
        }
        
        .footer-links a {
            color: #ccc;
            text-decoration: none;
            transition: color 0.3s;
        }
        
        .footer-links a:hover {
            color: var(--secondary-color);
            padding-left: 5px;
        }
        
        .copyright {
            background-color: rgba(0, 0, 0, 0.2);
            text-align: center;
            padding: 20px 0;
            font-size: 14px;
            color: #aaa;
        }
        
        .copyright a {
            color: var(--secondary-color);
            text-decoration: none;
        }
        
        /* 响应式设计 */
        @media (max-width: 992px) {
            .products-container {
                grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            }
            
            .floor-nav-item {
                padding: 10px 20px;
                margin: 0 5px;
            }
        }
        
        @media (max-width: 768px) {
            .eps-banner h1 {
                font-size: 32px;
            }
            
            .floor-header {
                flex-direction: column;
                text-align: center;
            }
            
            .floor-number {
                margin-right: 0;
                margin-bottom: 15px;
            }
            
            .products-container {
                grid-template-columns: 1fr;
            }
            
            .floor-nav-container {
                flex-wrap: wrap;
            }
            
            .floor-nav-item {
                margin-bottom: 10px;
            }
            
            .nav-links {
                flex-wrap: wrap;
            }
            
            .nav-links a {
                padding: 15px 20px;
            }
        }
        
        @media (max-width: 576px) {
            .eps-banner {
                padding: 40px 0;
            }
            
            .eps-banner h1 {
                font-size: 26px;
            }
            
            .product-img {
                height: 200px;
            }
            
            .product-content {
                padding: 20px;
            }
            
            .floor-navigation {
                flex-direction: column;
                gap: 15px;
            }
            
            .floor-btn {
                justify-content: center;
            }
        }