@media (max-width:1200px){.container{width:100%}.advantage-item,.product-item,.footer-item{width:calc(50% - 30px)}}@media (max-width:768px){.section-title h2{font-size:28px}.nav{display:none}.mobile-nav-btn{display:block}.banner{height:350px}.banner-content h2{font-size:32px}.banner-content p{font-size:16px}.intro-content{flex-direction:column}.intro-text,.intro-image{width:100%}.advantage-item,.product-item,.footer-item{width:100%}.phone-number{font-size:28px}.category-nav{flex-direction:column;align-items:flex-start}.category-title{margin-bottom:10px}.category-list{width:100%}.category-list li{margin-bottom:5px}.category-list li a{padding:6px 15px;font-size:14px}.culture-items{flex-direction:column}.page-title h1{font-size:28px}.product-detail-content{flex-direction:column}.news-grid{grid-template-columns:1fr}}