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

        :root {
            --primary-color: #0a7c8c;
            --secondary-color: #1cb4ac;
            --accent-color: #e6f7f9;
            --text-color: #333;
            --light-text: #666;
            --white: #ffffff;
            --light-gray: #f5f5f5;
            --gray: #e0e0e0;
            --dark-gray: #888;
            --shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
            --transition: all 0.3s ease;
            --border-radius: 8px;
        }

        body {
            font-family: 'Noto Sans SC', sans-serif;
            color: var(--text-color);
            line-height: 1.6;
            background-color: var(--white);
        }

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

        /* 头部和导航 - PC端样式 */
        header {
            background-color: var(--white);
            box-shadow: var(--shadow);
            position: sticky;
            top: 0;
            z-index: 1000;
        }

        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 0;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--primary-color);
            text-decoration: none;
        }

        .logo i {
            font-size: 2.2rem;
        }

        .logo img {
        	min-width:120px;
        	width:230px;
        	}
        	
        /* PC端导航样式 */
        .desktop-nav {
            display: flex;
        }

        .desktop-nav ul {
            display: flex;
            list-style: none;
            gap: 30px;
        }

        .desktop-nav a {
            text-decoration: none;
            color: var(--text-color);
            font-weight: 500;
            transition: var(--transition);
            padding: 5px 0;
            position: relative;
        }

        .desktop-nav a:hover {
            color: var(--primary-color);
        }

        .desktop-nav a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background-color: var(--primary-color);
            transition: var(--transition);
        }

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

        /* 移动端导航样式 - 默认隐藏 */
        .mobile-menu-btn {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--primary-color);
            cursor: pointer;
            z-index: 1001;
        }

        .mobile-nav {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 50%;
            height: 100%;
            background-color: rgba(255, 255, 255, 0.98);
            z-index: 1000;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            opacity: 0;
            transition: opacity 0.3s ease;
        }

        .mobile-nav.active {
            display: flex;
            opacity: 1;
        }

        .mobile-nav ul {
            list-style: none;
            text-align: center;
        }

        .mobile-nav li {
            margin-bottom: 30px;
        }

        .mobile-nav a {
            text-decoration: none;
            color: var(--text-color);
            font-size: 1.5rem;
            font-weight: 500;
            transition: var(--transition);
        }

        .mobile-nav a:hover {
            color: var(--primary-color);
        }

        .mobile-nav-close {
            position: absolute;
            top: 20px;
            right: 20px;
            background: none;
            border: none;
            font-size: 1.8rem;
            color: var(--primary-color);
            cursor: pointer;
        }

        /* 轮播图 */
        .hero-slider {
            position: relative;
            height: 800px;
            overflow: hidden;
            border-radius: var(--border-radius);
            margin: 30px 0;
        }

        .slide {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-size: cover;
            background-position: center;
            opacity: 0;
            transition: opacity 2s ease;
            display: flex;
            align-items: center;
        }

        .slide.active {
            opacity: 1;
        }

        .slide-content {
            background-color: rgba(255, 255, 255, 0.9);
            padding: 40px;
            max-width: 600px;
            border-radius: var(--border-radius);
            margin-left: 50px;
            box-shadow: var(--shadow);
        }

        .slide h2 {
            font-size: 2.5rem;
            color: var(--primary-color);
            margin-bottom: 15px;
        }

        .slide p {
            font-size: 1.1rem;
            margin-bottom: 20px;
            color: var(--light-text);
        }

        .buy-options {
            display: flex;
            flex-wrap: wrap;
            gap: 15px;
        }

        .btn {
            padding: 12px 25px;
            border-radius: 50px;
            font-weight: 600;
            text-decoration: none;
            display: inline-block;
            transition: var(--transition);
            cursor: pointer;
            border: none;
            font-family: inherit;
        }

        .btn-primary {
            background-color: var(--primary-color);
            color: var(--white);
        }

        .btn-primary:hover {
            background-color: #086874;
            transform: translateY(-3px);
            box-shadow: 0 5px 15px rgba(10, 124, 140, 0.2);
        }

        .btn-secondary {
            background-color: var(--secondary-color);
            color: var(--white);
        }

        .btn-secondary:hover {
            background-color: #17a29a;
            transform: translateY(-3px);
        }

        .slider-dots {
            position: absolute;
            bottom: 20px;
            left: 50%;
            transform: translateX(-50%);
            display: flex;
            gap: 10px;
        }

        .dot {
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background-color: rgba(255, 255, 255, 0.5);
            cursor: pointer;
            transition: var(--transition);
        }

        .dot.active {
            background-color: var(--white);
        }

        /* 产品迭代部分 */
        .section-title {
            text-align: center;
            margin: 50px 0 30px;
            position: relative;
        }

        .section-title h2 {
            font-size: 2.2rem;
            color: var(--primary-color);
            display: inline-block;
            padding-bottom: 10px;
        }

        .section-title h2::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 80px;
            height: 3px;
            background-color: var(--secondary-color);
        }

        .evolution-timeline {
            display: flex;
            justify-content: space-between;
            position: relative;
            margin: 40px 0 60px;
        }

        .evolution-timeline::before {
            content: '';
            position: absolute;
            top: 30px;
            left: 0;
            width: 100%;
            height: 4px;
            background-color: var(--gray);
            z-index: 1;
        }

        .timeline-item {
            text-align: center;
            position: relative;
            z-index: 2;
            flex: 1;
            max-width: 200px;
        }

        .timeline-icon {
            width: 64px;
            height: 64px;
            border-radius: 50%;
            background-color: var(--white);
            border: 4px solid var(--primary-color);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 15px;
            font-size: 1.8rem;
            color: var(--primary-color);
        }

        .timeline-content h3 {
            color: var(--primary-color);
            margin-bottom: 8px;
        }

        .timeline-content p {
            color: var(--light-text);
            font-size: 0.9rem;
        }
        .timeline-item img {
            text-align: center;
            position: relative;
            z-index: 2;
            flex: 1;
            max-width: 100px;
        }        

        /* 主推产品 */
        .featured-products {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 30px;
            margin: 40px 0 60px;
        }

        .product-card {
            background-color: var(--white);
            border-radius: var(--border-radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: var(--transition);
        }

        .product-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
        }

        .product-img {
            height: 400px;
            background-size: cover;
            background-position: center;
        }

        .product-content {
            padding: 20px;
        }

        .product-content h3 {
            color: var(--primary-color);
            margin-bottom: 10px;
        }

        .product-content p {
            color: var(--light-text);
            margin-bottom: 15px;
            font-size: 0.95rem;
        }

        .product-price {
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--secondary-color);
            margin-bottom: 15px;
        }

        /* 适用场景 */
        .scenarios {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 25px;
            margin: 40px 0 60px;
        }

        .scenario-card {
            background-color: var(--accent-color);
            border-radius: var(--border-radius);
            padding: 30px;
            text-align: center;
            transition: var(--transition);
        }

        .scenario-card:hover {
            background-color: #d4f0f3;
        }

        .scenario-icon {
            font-size: 2.5rem;
            color: var(--primary-color);
            margin-bottom: 20px;
        }

        .scenario-card h3 {
            color: var(--primary-color);
            margin-bottom: 15px;
        }

        /* 合作伙伴 */
        .partners {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 40px;
            margin: 40px 0 60px;
        }

        .partner-logo {
            height: 80px;
            display: flex;
            align-items: center;
            justify-content: center;
            filter: grayscale(100%);
            opacity: 0.7;
            transition: var(--transition);
        }

        .partner-logo:hover {
            filter: grayscale(0);
            opacity: 1;
        }

        .partner-logo img {
            max-height: 100%;
            max-width: 150px;
        }

        /* 页脚 */
        footer {
            background-color: #0a3c42;
            color: var(--white);
            padding: 50px 0 20px;
        }

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

        .footer-column h3 {
            font-size: 1.3rem;
            margin-bottom: 20px;
            color: var(--secondary-color);
        }

        .contact-info {
            display: flex;
            flex-direction: column;
            gap: 15px;
        }

        .contact-item {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .contact-item i {
            color: var(--secondary-color);
            font-size: 1.2rem;
        }

        .store-links {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .store-link {
            color: var(--white);
            text-decoration: none;
            transition: var(--transition);
            padding: 5px 0;
        }

        .store-link:hover {
            color: var(--secondary-color);
            padding-left: 5px;
        }

        .copyright {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.7);
        }

        /* 响应式设计 */
        @media (max-width: 1024px) {
            .hero-slider {
                height: 450px;
            }
            
            .slide-content {
                margin-left: 30px;
                padding: 30px;
            }
            
            .evolution-timeline {
                flex-wrap: wrap;
                justify-content: center;
                gap: 50px;
            }
            
            .evolution-timeline::before {
                display: none;
            }
            
            .timeline-item {
                max-width: 45%;
                margin-bottom: 20px;
            }
         }

        /* 平板和移动端样式 */
        @media (max-width: 768px) {
            /* 隐藏PC端导航，显示移动端菜单按钮 */
            .desktop-nav {
                display: none;
            }

           .logo img {
              	min-width:120px;
              	width:230px;
              	padding-left:10px;
        	 }            
            .mobile-menu-btn {
                display: block;
                padding-right: 10px;
            }
            
            .hero-slider {
                height: 400px;
            }
            
            .slide-content {
                margin: 0 20px;
                padding: 25px;
            }
            
            .slide h2 {
                font-size: 2rem;
            }
            
            .timeline-item {
                max-width: 100%;
                width: 100%;
            }
            
            .featured-products,
            .scenarios {
                grid-template-columns: 1fr;
            }
            
            .partners {
                gap: 30px;
            }
            
            .partner-logo {
                height: 60px;
            }
        }

        @media (max-width: 480px) {
            .logo span {
                font-size: 1.5rem;
            }
            
            .logo i {
                font-size: 1.8rem;
            }
            
            .hero-slider {
                height: 350px;
            }
            
            .slide-content {
                padding: 20px;
                margin: 0 15px;
            }
            
            .slide h2 {
                font-size: 1.7rem;
            }
            
            .btn {
                padding: 10px 20px;
                font-size: 0.9rem;
            }
            
            .section-title h2 {
                font-size: 1.8rem;
            }
            
            .footer-content {
                grid-template-columns: 1fr;
            }
            
            .mobile-nav a {
                font-size: 1.3rem;
            }
            
            .mobile-nav li {
                margin-bottom: 25px;
            }
        }