/* 通用标题样式 */
.content_title {
    text-align: center;
    font-size: 32px;
    color: #333;
    font-weight: normal;
}

.section-subtitle {
    text-align: center;
    font-size: 18px;
    color: #666;
    margin-bottom: 40px;
    font-weight: normal;
    letter-spacing: 1px;
    position: relative;
    padding-bottom: 10px;
}

.section-subtitle::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background-color: var(--theme-color);
}

/* 产品中心模块 */
.content_product {
    padding: 50px 0;
    background-color: #f8f9fa;
}

.content_product_list {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.content_product_item {
    background-color: #fff;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    cursor: pointer;
}

.content_product_item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.15);
}

.product-image {
    height: 143px;
    overflow: hidden;
}

.product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.content_product_item:hover .product-image img {
    transform: scale(1.05);
}

.word_item_title {
    padding: 15px;
    text-align: center;
    border-top: 1px solid #ccc;
}

.word_item_title h3 {
    font-weight: normal;
    font-size: 17px;
    color: #333;
    margin: 0;
}

/* 公司简介模块 */
.content_aboutus {
    padding: 60px 0;
    background-color: #fff;
}

.content_aboutus .content_title {
    font-size: 32px;
    color: #333;
    position: relative;
    display: block;
    text-align: left;
}

.content_aboutus .section-subtitle {
    font-size: 18px;
    color: #666;
    letter-spacing: 1px;
    margin: 0 0 30px 0;
    text-align: left;
}

.content_aboutus .section-subtitle::after {
    left: 0;
    transform: none;
}

.about_content {
    display: flex;
    flex-wrap: wrap;
    align-items: flex-start;
    gap: 40px;
}

.intro-text {
    flex: 1;
    min-width: 300px;
    text-align: left;
}

.intro-image {
    flex: 1;
    min-width: 300px;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.intro-image img {
    width: 100%;
    height: auto;
    display: block;
    transition: transform 0.5s ease;
}

.intro-image:hover img {
    transform: scale(1.03);
}

.about_description {
    margin-bottom: 30px;
}

.about_description p {
    color: #555;
    line-height: 1.8;
    font-size: 16px;
    margin-bottom: 20px;
}

.about_more {
    display: inline-block;
    margin-top: 20px;
    padding: 10px 25px;
    background-color: var(--theme-color);
    color: white;
    border-radius: 30px;
    text-decoration: none;
    transition: all 0.3s ease;
    font-weight: 500;
    box-shadow: 0 4px 15px rgba(0, 102, 204, 0.3);
    cursor: pointer;
}

.about_more:hover {
    background-color: var(--theme-color-dark);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 102, 204, 0.4);
}

/* 新闻中心模块 */
.content_news {
    padding: 60px 0;
    background-color: #f8f9fa;
}

.news_list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.news_item {
    background-color: #fff;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    height: 100%;
    cursor: pointer;
}

.news_item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.news_item_date {
    background-color: var(--theme-color);
    color: white;
    padding: 15px;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.news_item_date_day {
    font-size: 26px;
    font-weight: bold;
    line-height: 1.2;
}

.news_item_date_year {
    font-size: 16px;
    opacity: 0.8;
}

.news_item_content {
    padding: 20px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.news_item_title {
    font-size: 18px;
    margin-bottom: 10px;
    line-height: 1.4;
}

.news_item_title span {
    color: #333;
    transition: color 0.3s ease;
}

.news_item_title span:hover {
    color: var(--theme-color);
}

.news_item_description {
    color: #666;
    font-size: 14px;
    line-height: 1.6;
    margin-bottom: 15px;
    flex: 1;
}

.more-link {
    text-align: center;
    margin-top: 20px;
}

/* 合作案例模块 */
.content_case {
    padding: 60px 0;
    background-color: #fff;
}

.case_list_content {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-top: 40px;
}

.case-item {
    display: block;
    border-radius: 8px;
    overflow: hidden;
    position: relative;
    transition: all 0.3s ease;
    background: #f5f5f5;
    text-align: center;
    padding: 20px;
    height: 160px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
}

.case-item img {
    max-width: 100%;
    max-height: 100%;
    width: auto;
    height: auto;
    object-fit: contain;
    transition: transform 0.5
}

.case-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
    background: #fff;
}

.case-item:hover img {
    transform: scale(1.05);
}

/* 响应式设计 */
@media (max-width: 1200px) {
    .content_product_list {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 992px) {
    .content_product_list {
        grid-template-columns: repeat(2, 1fr);
    }

    .case_list_content {
        grid-template-columns: repeat(3, 1fr);
    }

    .about_content {
        flex-direction: column;
    }
    
    .intro-text, .intro-image {
        width: 100%;
        text-align: left; /* 移动端也保持左对齐 */
    }
    
    .intro-image {
        order: -1;
    }
}

@media (max-width: 768px) {
    .case_list_content {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .news_list {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 576px) {
    .content_product_list {
        grid-template-columns: 1fr;
    }
    
    .content_title {
        font-size: 24px;
    }
    
    .section-subtitle {
        font-size: 16px;
    }

    .product-image {
        height: 200px;
    }

    .case_list_content {
        grid-template-columns: 1fr;
    }
    
    .case-item {
        height: 120px;
        padding: 15px;
    }
    
    .content_aboutus .content_title {
        font-size: 28px;
    }
    
    .content_aboutus .section-subtitle {
        font-size: 16px;
    }
    
    .about_description p {
        font-size: 15px;
    }
}