.category-section {
    padding: 80px 0;
    background: #f7f7f7;
}

.category-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 20px;
    max-width: 1200px;
    margin: 0 auto;
}

.category-item {
    display: block;
    background: #fff;
    border: 1px solid #e5e5e5;
    border-radius: 8px;
    padding: 20px 20px;
    text-align: center;
    text-decoration: none;
    color: #333;
    transition: all 0.4s ease;
    position: relative;
    overflow: hidden;
}

.category-item:hover {
    transform: translateY(-5px);
    background: var(--mainColor);
    color: #fff;
    border-color: var(--mainColor);
    box-shadow: 0 15px 35px rgba(0, 123, 255, 0.3);
}

.category-image {
    position: relative;
    width: 100px;
    height: 100px;
    margin: 0 auto 5px;
    overflow: hidden;
}

.category-image img {
    width: 100px;
    height: 100px;
    object-fit: cover;
    position: absolute;
    top: 0;
    left: 0;
    transition: all 0.4s ease;
}

.img-default {
    opacity: 1;
    transform: translateY(0);
}

.img-hover {
    opacity: 0;
    transform: translateY(200%);
}

.category-item:hover .img-default {
    opacity: 0;
    transform: translateY(-200%);
}

.category-item:hover .img-hover {
    opacity: 1;
    transform: translateY(0);
}

.category-title {
    font-size: 20px;
    font-weight: 600;
    transition: color 0.3s ease;
}

.category-item:hover .category-title {
    color: #fff;
}

.category-subtitle {
    font-size: 14px;
    color: #666;
    margin: 0 0 10px 0;
    transition: color 0.3s ease;
}

.category-item:hover .category-subtitle {
    color: rgba(255, 255, 255, 0.8);
}

.category-line {
    width: 60px;
    height: 3px;
    background: var(--mainColor);
    margin: 0 auto;
    border-radius: 2px;
    transition: all 0.3s ease;
}

.category-item:hover .category-line {
    background: #fff;
    width: 80px;
}