/* 客户分类筛选 */
        .client-filter {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 15px;
            margin-bottom: 40px;
        }
        
        .filter-btn {
            background: transparent;
            border: 2px solid var(--primary);
            color: var(--primary);
            padding: 10px 25px;
            border-radius: 30px;
            cursor: pointer;
            transition: var(--transition);
            font-weight: 500;
            font-size: 1rem;
        }
        
        .filter-btn:hover, .filter-btn.active {
            background: var(--primary);
            color: var(--white);
        }
        
        /* 客户网格布局 */
        .clients-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
            gap: 30px;
            margin-bottom: 60px;
        }
        
        .client-card {
            background: var(--white);
            border-radius: var(--border-radius);
            overflow: hidden;
            box-shadow: var(--box-shadow);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
            height: 100%;
        }
        
        .client-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 35px rgba(0,0,0,0.15);
        }
        
        .client-logo {
            height: 150px;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 20px;
            background: var(--light);
        }
        
        .client-logo img {
            max-width: 100%;
            max-height: 100px;
            object-fit: contain;
        }
        
        .client-content {
            padding: 25px;
            flex-grow: 1;
            display: flex;
            flex-direction: column;
        }
        
        .client-content h3 {
            font-size: 1.4rem;
            margin-bottom: 15px;
            color: var(--dark);
        }
        
        .cooperation-type {
            background: rgba(46, 125, 50, 0.1);
            color: var(--primary);
            padding: 6px 12px;
            border-radius: 20px;
            display: inline-block;
            margin-bottom: 15px;
            font-size: 0.9rem;
            font-weight: 500;
        }
        
        .client-content p {
            color: var(--text);
            font-size: 1rem;
            line-height: 1.7;
            margin-bottom: 20px;
            flex-grow: 1;
        }
        
        .client-testimonial {
            background: rgba(255, 160, 0, 0.08);
            border-left: 4px solid var(--accent);
            padding: 15px;
            border-radius: 0 8px 8px 0;
            margin-top: 15px;
        }
        
        .testimonial-text {
            font-style: italic;
            color: var(--dark);
            margin-bottom: 10px;
            position: relative;
        }
        
        .testimonial-author {
            display: flex;
            align-items: center;
        }
        
        .testimonial-author img {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            object-fit: cover;
            margin-right: 10px;
        }
        
        .author-info {
            display: flex;
            flex-direction: column;
        }
        
        .author-info strong {
            font-weight: 600;
            color: var(--dark);
        }
        
        .author-info span {
            font-size: 0.9rem;
            color: var(--text-light);
        }
        
        /* 客户评价部分 */
        .testimonials-section {
            background: linear-gradient(135deg, #1a5e20 0%, #2e7d32 100%);
            padding: 70px 0;
            color: white;
            width: 100%;
        }
        
        .testimonials-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        
        .testimonials-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
            gap: 30px;
            margin-top: 40px;
        }
        
        .testimonial-card {
            background: rgba(255, 255, 255, 0.1);
            border-radius: var(--border-radius);
            padding: 30px;
            backdrop-filter: blur(10px);
            border: 1px solid rgba(255, 255, 255, 0.2);
        }
        
        .testimonial-card .testimonial-text {
            font-size: 1.1rem;
            line-height: 1.8;
            margin-bottom: 25px;
            color: white;
        }
        
        .testimonial-card .testimonial-author {
            border-top: 1px solid rgba(255, 255, 255, 0.2);
            padding-top: 20px;
        }
        
        .testimonial-card .author-info strong {
            color: white;
        }
        
        .testimonial-card .author-info span {
            color: rgba(255, 255, 255, 0.8);
        }
        
        .rating {
            color: var(--accent);
            margin-bottom: 15px;
        }

/* 响应式设计 */
        @media (max-width: 768px) {
            .clients-grid {
                grid-template-columns: 1fr;
            }
            
            .client-filter {
                gap: 10px;
            }
            
            .filter-btn {
                padding: 8px 15px;
                font-size: 0.9rem;
            }
            
            .testimonials-grid {
                grid-template-columns: 1fr;
            }
        }