.main-slide {
            width: 100%;
            height: 650px;
            border-radius: 10px;
            overflow: hidden;
            position: relative;
            box-shadow: 0 5px 20px rgba(0, 0, 0, 0.2);
            margin-bottom: 20px;
        }
        
        .main-slide img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: opacity 0.5s ease;
        }
        
        .thumbnail-slider {
            position: relative;
            padding: 0 40px;
        }
        
        .thumbnails {
            display: flex;
            gap: 12px;
            overflow-x: auto;
            scroll-behavior: smooth;
            padding: 10px 0;
            scrollbar-width: none; /* Firefox */
        }
        
        .thumbnails::-webkit-scrollbar {
            display: none; /* Chrome, Safari, Opera */
        }
        
        .thumbnail {
            min-width: 100px;
            height: 70px;
            border-radius: 8px;
            overflow: hidden;
            cursor: pointer;
            opacity: 0.6;
            transition: all 0.3s ease;
            box-shadow: 0 3px 6px rgba(0, 0, 0, 0.16);
            border: 2px solid transparent;
        }
        
        .thumbnail:hover {
            opacity: 0.9;
            transform: scale(1.05);
        }
        
        .thumbnail.active {
            opacity: 1;
            border: 2px solid #3498db;
            transform: scale(1.08);
        }
        
        .thumbnail img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        
        .slider-controls {
            display: flex;
            justify-content: center;
            gap: 15px;
            margin-top: 20px;
        }
        
        .control-btn {
            background: #3498db;
            color: white;
            border: none;
            padding: 12px 25px;
            border-radius: 30px;
            cursor: pointer;
            font-weight: 600;
            transition: all 0.3s ease;
            display: flex;
            align-items: center;
            gap: 8px;
            box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
        }
        
        .control-btn:hover {
            background: #2980b9;
            transform: translateY(-2px);
            box-shadow: 0 6px 12px rgba(0, 0, 0, 0.25);
        }
        
        .control-btn:active {
            transform: translateY(0);
        }
        
        .arrow-btn {
            position: absolute;
            top: 50%;
            transform: translateY(-50%);
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: white;
            border: none;
            box-shadow: 0 3px 10px rgba(0, 0, 0, 0.2);
            cursor: pointer;
            display: flex;
            justify-content: center;
            align-items: center;
            font-size: 16px;
            color: #3498db;
            transition: all 0.3s ease;
            z-index: 10;
        }
        
        .arrow-btn:hover {
            background: #3498db;
            color: white;
        }
        
        .arrow-btn.prev {
            left: 0;
        }
        
        .arrow-btn.next {
            right: 0;
        }
        
        .image-counter {
            text-align: center;
            margin-top: 15px;
            color: #7f8c8d;
            font-weight: 500;
        }
        
        @media (max-width: 768px) {
            .main-slide {
                height: 350px;
            }
            
            .thumbnail {
                min-width: 80px;
                height: 60px;
            }
        }
        
        @media (max-width: 480px) {
            .main-slide {
                height: 280px;
            }
            
            .thumbnail {
                min-width: 70px;
                height: 50px;
            }
            
            .control-btn {
                padding: 10px 20px;
                font-size: 14px;
            }
            
            .slider-container {
                padding: 15px;
            }
            
            .thumbnail-slider {
                padding: 0 30px;
            }
        }