:root {
            --primary-color: #1e9fff; /* 主题色 */
            --dark-color: #303030; /* 深色 */
            --light-color: #f8f9fa; /* 浅色 */
            --text-color: #333; /* 文本颜色 */
            --text-gray: #666; /* 灰色文本 */
        }
        
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            transition: all 0.3s ease;
        }
        
        body {
            font-family: 'Helvetica Neue', 'PingFang SC', 'Microsoft YaHei', sans-serif;
            color: var(--text-color);
            line-height: 1.6;
            background-color: #fff;
            overflow-x: hidden;
        }
        
        /* 头部banner区域 */
        .hero-banner {
            position: relative;
            height: 400px;
            overflow: hidden;
        }
        
        .hero-banner img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 0px;
            transition: transform 0.4s ease;
        }
        
        .hero-banner:hover img {
            transform: scale(1.05);
        }
        
        .overlay {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0, 0, 0, 0.3);
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            color: white;
        }
        
        .overlay h1 {
            font-size: 3rem;
            margin-bottom: 20px;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
        }
        
        .overlay p {
            font-size: 1.2rem;
            max-width: 600px;
            text-align: center;
            text-shadow: 1px 1px 3px rgba(0,0,0,0.5);
        }
        
        /* 主内容区域 */
        .about-content {
            max-width: 1200px;
            margin: 0 auto;
            padding: 60px 20px;
        }
        
        .section-title {
            text-align: center;
            font-size: 2.5rem;
            color: var(--primary-color);
            margin-bottom: 20px;
            position: relative;
            padding-bottom: 15px;
        }
        
        .section-title:after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 60px;
            height: 4px;
            background-color: var(--primary-color);
            border-radius: 2px;
        }
        
        /* 分隔线 */
        .divider {
            width: 100px;
            height: 4px;
            background: var(--primary-color);
            margin: 25px auto;
            border-radius: 2px;
            opacity: 0.7;
        }
        
        .content-text {
            background-color: #fff;
            padding: 30px;
            border-radius: 10px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.08);
            margin: 0 auto;
            max-width: 900px;
            font-size: 1.1rem;
            color: var(--text-gray);
            line-height: 1.8;
        }
        
        .highlight {
            color: var(--primary-color);
            font-weight: bold;
        }
        
        /* 企业文化区域 */
        .company-values {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 30px;
            margin-top: 50px;
        }
        
        .value-card {
            flex: 1;
            min-width: 250px;
            max-width: 350px;
            text-align: center;
            padding: 30px 20px;
            background: white;
            border-radius: 10px;
            box-shadow: 0 3px 10px rgba(0,0,0,0.1);
            transition: all 0.3s ease;
        }
        
        .value-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 8px 25px rgba(0,0,0,0.15);
        }
        
        .value-icon {
            font-size: 3rem;
            color: var(--primary-color);
            margin-bottom: 20px;
        }
        
        .value-title {
            font-size: 1.5rem;
            color: var(--dark-color);
            margin-bottom: 15px;
        }
        
        /* 响应式调整 */
        @media (max-width: 768px) {
            .overlay h1 {
                font-size: 2.5rem;
            }
            
            .section-title {
                font-size: 2rem;
            }
            
            .content-text {
                padding: 20px;
                font-size: 1rem;
            }
            
            .hero-banner {
                height: 300px;
            }
        }
        
        @media (max-width: 480px) {
            .overlay h1 {
                font-size: 2rem;
            }
            
            .overlay p {
                font-size: 1rem;
            }
            
            .section-title {
                font-size: 1.8rem;
            }
            
            .value-card {
                min-width: 100%;
            }
        }