/* 移动端样式 */
@media screen and (max-width: 768px) {
    /* 头部导航样式 */
    .header .header_content {
        flex-direction: column;
        padding: var(--spacing-xs);
        height: auto;
    }
    
    .head_logo {
        margin-bottom: var(--spacing-xs);
    }
    
    .head_menu {
        width: 100%;
        justify-content: space-around;
        margin-right: 0;
    }
    
    .menu_item {
        margin: 0 5px;
        font-size: 14px;
    }
    
    /* content1轮播区域样式 */
    .banner-carousel .main_text {
        font-size: 2rem;
    }
    
    .banner-carousel .main_sub_text {
        font-size: 1.5rem;
    }
    
    .banner-carousel .sub_text {
        font-size: 1rem;
    }
    
    .banner-carousel .button {
        flex-direction: column;
        gap: 10px;
    }
    
    /* content2区域样式 */
    .content2 .subcontent1 {
        flex-direction: column;
    }
    
    .content2 .description {
        width: 100%;
        margin-bottom: 20px;
    }
    
    .content2 .card_container {
        flex-direction: column;
        width: 100%;
    }
    
    .content2 .card {
        width: 90%;
        margin: 10px auto;
    }
    
    /* 卡片容器样式 */
    .content2 .subcontent1 .card_container {
        grid-template-columns: 1fr;
    }
    
    /* 功能展示区域 */
    .content2 .subcontent2 .function {
        flex-direction: column;
        gap: var(--spacing-md);
    }
    
    .content2 .subcontent2 .description,
    .content2 .subcontent2 .show {
        width: 100%;
    }
    
    /* 新闻区域 */
    .content3 .post-slide {
        margin: 0 5px;
    }
    
    .content3 .post-content {
        padding: 10px;
    }
    
    .content3 .post-title a {
        font-size: 16px;
    }
    
    .content3 .post-description {
        font-size: 14px;
    }
    
    /* 底部区域 */
    .foot {
        padding: 20px 10px;
    }
}

/* 小屏幕手机样式 */
@media screen and (max-width: 480px) {
    .head_menu {
        flex-wrap: wrap;
    }
    
    .menu_item {
        margin: 5px;
        width: 45%;
        text-align: center;
    }
    
    .banner-carousel .main_text {
        font-size: 1.8rem;
    }
    
    .banner-carousel .main_sub_text {
        font-size: 1.3rem;
    }
    
    .banner-carousel .sub_text {
        font-size: 0.9rem;
    }
}