/* 重置样式防止冲突 */
        .why-choose-us-container * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
        }
        
        /* 主要容器 - 白色背景 */
        .why-choose-us-container {
            background-color: #ffffff;
            color: #000000;
            line-height: 1.6;
            width: 100%;
            overflow: hidden;
        }
        
        .why-choose-us-section {
            max-width: 1400px;
            margin: 0 auto;
            padding: 10px 40px;
            position: relative;
        }
        
        /* 标题样式 */
        .why-choose-us-title {
            text-align: center;
            margin-bottom: 60px;
            position: relative;
        }
        
        .why-choose-us-title h1 {
            font-size: 3rem;
            color: #000000;
            margin-bottom: 10px;
            font-weight: 600;
            text-transform: capitalize;
            letter-spacing: 1.5px;
        }
        
        /* 网格布局 */
        .why-choose-us-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 25px;
        }
        
        /* 卡片样式 - 灰色背景 */
        .why-choose-us-card {
            background-color: #f8f9fa;
            border-radius: 10px;
            overflow: hidden;
            height: 450px; 
            display: flex;
            flex-direction: column;
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.05);
            transition: all 0.35s ease;
            border: 1px solid rgba(0, 0, 0, 0.08);
        }
        
        .why-choose-us-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
            background-color: #f0f2f5;
        }
        
        /* 图片区域 */
        .why-choose-us-card-image {
            height: 200px;
            overflow: hidden;
        }
        
        .why-choose-us-card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.7s ease;
        }
        
        .why-choose-us-card:hover .why-choose-us-card-image img {
            transform: scale(1.08);
        }
        
        /* 内容区域 */
        .why-choose-us-card-content {
            padding: 25px;
            flex-grow: 1;
            display: flex;
            flex-direction: column;
        }
        
        .why-choose-us-card-title {
            font-size: 1.5rem;
            color: #000000;
            margin-bottom: 15px;
            font-weight: 600;
            line-height: 1.3;
            position: relative;
            padding-bottom: 12px;
        }
        
        .why-choose-us-card-title::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 35px;
            height: 2px;
            background: #000000;
            transition: width 0.4s ease;
        }
        
        .why-choose-us-card:hover .why-choose-us-card-title::after {
            width: 60px;
        }
        
        .why-choose-us-card-text {
            color: #000000;
            font-size: 1rem;
            line-height: 1.6;
            margin-bottom: 20px;
            flex-grow: 1;
            font-weight: 300;
            opacity: 0.85;
        }
        
        /* 认证标签 */
        /* 分隔线 */
        .why-choose-us-divider {
            height: 1px;
            background: linear-gradient(90deg, transparent, rgba(0, 0, 0, 0.1), transparent);
            margin: 15px 0;
        }
        
        /* 链接样式 */
        .why-choose-us-learn-more {
            color: #000000;
            font-weight: 500;
            font-size: 0.95rem;
            text-decoration: none;
            display: inline-block;
            margin-top: 8px;
            transition: all 0.25s ease;
            opacity: 0.8;
        }
        
        .why-choose-us-learn-more:hover {
            opacity: 1;
            transform: translateX(4px);
        }
        
        /* 响应式设计 */
        @media (max-width: 1200px) {
            .why-choose-us-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 25px;
            }
            
            .why-choose-us-title h1 {
                font-size: 2.6rem;
            }
            
            .why-choose-us-card-image {
                height: 190px;
            }
        }
        
        @media (max-width: 768px) {
            .why-choose-us-grid {
                grid-template-columns: 1fr;
                gap: 30px;
            }
            
            .why-choose-us-title h1 {
                font-size: 2.2rem;
            }
            
            .why-choose-us-title {
                margin-bottom: 50px;
            }
            
            .why-choose-us-section {
                padding: 60px 20px;
            }
            
            .why-choose-us-card-content {
                padding: 22px;
            }
            
            .why-choose-us-card-image {
                height: 180px;
            }
            
            .why-choose-us-card-title {
                font-size: 1.4rem;
            }
        }
        
        /* 动画效果 */
        .why-choose-us-card {
            opacity: 0;
            transform: translateY(25px);
            animation: why-choose-us-fadeInUp 0.6s ease forwards;
        }
        
        @keyframes why-choose-us-fadeInUp {
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        
        .why-choose-us-card:nth-child(1) {
            animation-delay: 0.1s;
        }
        
        .why-choose-us-card:nth-child(2) {
            animation-delay: 0.2s;
        }
        
        .why-choose-us-card:nth-child(3) {
            animation-delay: 0.3s;
        }
        
        .why-choose-us-card:nth-child(4) {
            animation-delay: 0.4s;
        }
        
        /* 添加细微的背景纹理 */
        .why-choose-us-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(135deg, rgba(255, 255, 255, 0.1) 0%, transparent 50%);
            opacity: 0;
            transition: opacity 0.3s ease;
            pointer-events: none;
            border-radius: 10px;
        }
        
        .why-choose-us-card:hover::before {
            opacity: 1;
        }
        
        /* 卡片内容区域位置调整 */
        .why-choose-us-card-content {
            position: relative;
            z-index: 1;
        }