:root {
            /* 明亮科技感主色调 */
            --primary: #2563EB; /* 亮蓝色 */
            --secondary: #3B82F6; /* 中蓝色 */
            --accent: #06B6D4; /* 亮青色 */
            --light-accent: #93C5FD; /* 淡蓝色 */
            --purple: #8B5CF6; /* 亮紫色 */
            
            /* 中性色 */
            --dark: #1E293B; /* 深灰文字 */
            --medium: #64748B; /* 中灰文字 */
            --light: #F1F5F9; /* 浅灰背景 */
            --lighter: #F8FAFC; /* 更浅背景 */
            --white: #FFFFFF; /* 白色 */
            --border: #E2E8F0; /* 边框色 */
            
            /* 布局变量 */
            --container-width: 1580px;
            --spacing-sm: 1rem;
            --spacing-md: 2rem;
            --spacing-lg: 3rem;
            --spacing-xl: 5rem;
            --border-radius: 12px;
            --transition: all 0.3s ease;
        }
        
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        
        body {
            background-color: var(--lighter);
            color: var(--dark);
            line-height: 1.6;
            overflow-x: hidden;
            background-image: 
                radial-gradient(circle at 10% 20%, rgba(37, 99, 235, 0.05) 0%, transparent 20%),
                radial-gradient(circle at 90% 80%, rgba(139, 92, 246, 0.05) 0%, transparent 20%);
        }
        
        .container {
            width: 100%;
            max-width: var(--container-width);
            margin: 0 auto;
            padding: 0 var(--spacing-sm);
        }
        
        /* 网格背景 */
        .grid-bg {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: auto;
            background-image: 
                linear-gradient(rgba(37, 99, 235, 0.05) 1px, transparent 1px),
                linear-gradient(90deg, rgba(37, 99, 235, 0.05) 1px, transparent 1px);
            background-size: 40px 40px;
            z-index: -1;
        }
        
        /* 光效元素 */
        .light-effect {
            position: absolute;
            width: 600px;
            height: 600px;
            border-radius: 50%;
            filter: blur(120px);
            z-index: -1;
        }
        
        .light-1 {
            top: 0px;
            background: radial-gradient(circle, rgba(37, 99, 235, 0.2) 0%, transparent 70%);
            animation: pulse 15s infinite ease-in-out;
        }
        
        .light-2 {
            left: 0px;
            background: radial-gradient(circle, rgba(139, 92, 246, 0.15) 0%, transparent 70%);
            animation: pulse 20s infinite ease-in-out 2s;
        }
        
        /* 粒子效果 */
        .particles {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            z-index: -1;
            overflow: hidden;
        }
        
        .particle {
            position: absolute;
            background-color: rgba(37, 99, 235, 0.2);
            border-radius: 50%;
            opacity: 0;
            animation: float 10s infinite ease-in-out;
        }
        
        /* 标题区域 */
        .page-header {
            padding: var(--spacing-xl) 0;
            position: relative;
            text-align: center;
            overflow: hidden;
            margin-top: 8rem;
        }
        
        .main-title {
            font-size: 3rem;
            font-weight: 800;
            margin-bottom: var(--spacing-sm);
            background: linear-gradient(90deg, var(--primary), var(--purple));
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
            line-height: 1.2;
            position: relative;
            z-index: 1;
        }
        
        .subtitle {
            font-size: 1.2rem;
            color: var(--medium);
            max-width: 700px;
            margin: 0 auto;
            padding-bottom: var(--spacing-sm);
            position: relative;
        }
        
        .subtitle::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 80px;
            height: 2px;
            background: linear-gradient(90deg, var(--primary), var(--accent));
        }
        
        /* 内容区块通用样式 */
        .section {
            padding: 5px 0;
            position: relative;
            opacity: 0;
            transform: translateY(30px);
            transition: var(--transition);
        }
        
        .section.visible {
            opacity: 1;
            transform: translateY(0);
        }
        
        .section-title {
            font-size: 2rem;
            margin-bottom: var(--spacing-md);
            position: relative;
            display: inline-block;
            padding-bottom: 10px;
            color: var(--dark);
        }
        
        .section-title::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 60px;
            height: 3px;
            background: linear-gradient(90deg, var(--primary), var(--accent));
            border-radius: 2px;
        }
        
        .section-content {
            max-width: 800px;
            font-size: 1.1rem;
            color: var(--medium);
        }
        
        /* 关于我们区域 */
        .about-section {
            background-color: var(--white);
            border-radius: var(--border-radius);
            padding: var(--spacing-md);
            margin-bottom: var(--spacing-lg);
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
            border: 1px solid var(--border);
        }
        
        .about-content {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: var(--spacing-md);
            align-items: center;
        }
        
        .about-text p {
            margin-bottom: var(--spacing-sm);
            color: var(--medium);
        }
        
        .about-stats {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: var(--spacing-sm);
        }
        
        .stat-item {
            background-color: rgba(37, 99, 235, 0.05);
            padding: var(--spacing-sm);
            border-radius: var(--border-radius);
            text-align: center;
            border: 1px solid rgba(37, 99, 235, 0.1);
            transition: var(--transition);
        }
        
        .stat-item:hover {
            transform: translateY(-5px);
            background-color: rgba(37, 99, 235, 0.1);
            border-color: rgba(37, 99, 235, 0.2);
            box-shadow: 0 5px 15px rgba(37, 99, 235, 0.05);
        }
        
        .stat-number {
            font-size: 2rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 5px;
        }
        
        .stat-label {
            font-size: 0.9rem;
            color: var(--medium);
        }
        
        /* 优势区域 */
        .advantages-section {
            margin-bottom: var(--spacing-lg);
        }
        
        .advantages-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--spacing-md);
            margin-top: var(--spacing-md);
        }
        
        .advantage-card {
            background-color: var(--white);
            border-radius: var(--border-radius);
            padding: var(--spacing-md);
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.03);
            border: 1px solid var(--border);
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }
        
        .advantage-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 3px;
            background: linear-gradient(90deg, var(--primary), var(--accent));
            transform: scaleX(0);
            transition: var(--transition);
        }
        
        .advantage-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.08);
            border-color: rgba(37, 99, 235, 0.2);
        }
        
        .advantage-card:hover::before {
            transform: scaleX(1);
        }
        
        .advantage-icon {
            width: 60px;
            height: 60px;
            background-color: rgba(37, 99, 235, 0.1);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: var(--spacing-sm);
            color: var(--primary);
            font-size: 1.5rem;
            transition: var(--transition);
        }
        
        .advantage-card:hover .advantage-icon {
            background-color: rgba(37, 99, 235, 0.2);
            transform: scale(1.1);
        }
        
        .advantage-title {
            font-size: 1.3rem;
            margin-bottom: var(--spacing-sm);
            color: var(--dark);
        }
        
        .advantage-desc {
            color: var(--medium);
            font-size: 1rem;
        }
        
        /* 使命愿景区域 */
        .mission-vision {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: var(--spacing-md);
            margin-bottom: var(--spacing-lg);
        }
        
        .mission-card, .vision-card {
            background-color: var(--white);
            border-radius: var(--border-radius);
            padding: var(--spacing-md);
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
            border: 1px solid var(--border);
            transition: var(--transition);
        }
        
        .mission-card:hover, .vision-card:hover {
            transform: translateY(-5px);
            border-color: rgba(37, 99, 235, 0.2);
            box-shadow: 0 10px 20px rgba(0, 0, 0, 0.07);
        }
        
        .mission-card {
            border-top: 3px solid var(--primary);
        }
        
        .vision-card {
            border-top: 3px solid var(--purple);
        }
        
        /* SEO优化区域 */
        .seo-section {
            background-color: var(--white);
            border-radius: var(--border-radius);
            padding: var(--spacing-md);
            margin-bottom: var(--spacing-lg);
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
            border: 1px solid var(--border);
        }
        
        .seo-content {
            font-size: 1.1rem;
            line-height: 1.8;
            color: var(--medium);
        }
        
        .seo-content strong {
            color: var(--primary);
        }
        
        /* 联系按钮 */
        .contact-cta {
            text-align: center;
            padding: var(--spacing-lg) 0;
        }
        
        .contact-btn {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: linear-gradient(90deg, var(--primary), var(--accent));
            color: var(--white);
            border: none;
            padding: 15px 30px;
            font-size: 1.1rem;
            font-weight: 600;
            border-radius: 50px;
            cursor: pointer;
            transition: var(--transition);
            box-shadow: 0 5px 15px rgba(37, 99, 235, 0.2);
        }
        
        .contact-btn:hover {
            transform: translateY(-5px) scale(1.05);
            box-shadow: 0 10px 25px rgba(37, 99, 235, 0.3);
        }
        
        /* 动画效果 */
        @keyframes pulse {
            0%, 100% {
                transform: scale(1);
                opacity: 0.7;
            }
            50% {
                transform: scale(1.2);
                opacity: 1;
            }
        }
        
        @keyframes float {
            0% {
                transform: translateY(0) translateX(0);
                opacity: 0;
            }
            20% {
                opacity: 0.6;
            }
            80% {
                opacity: 0.6;
            }
            100% {
                transform: translateY(-100px) translateX(50px);
                opacity: 0;
            }
        }
        
        /* 响应式设计 */
        @media (max-width: 768px) {
            .main-title {
                font-size: 2.2rem;
            }
            
            .subtitle {
                font-size: 1rem;
            }
            
            .about-content {
                grid-template-columns: 1fr;
            }
            
            .mission-vision {
                grid-template-columns: 1fr;
            }
            
            .section-title {
                font-size: 1.6rem;
            }
            
            .advantages-grid {
                grid-template-columns: 1fr;
            }
            
            .stat-number {
                font-size: 1.6rem;
            }
             /* 光效元素 */
           .light-effect {
            position: absolute;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            filter: blur(120px);
            z-index: -1;
        }
        }