/* ===== 产品展示区 ===== */
.products-section {
    background: var(--bg-light);
    padding: var(--spacing-3xl) 0;
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-lg);
}

.product-card {
    /*background: var(--bg-white);*/
    background:#F2F2F2;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
}

    .product-card:hover {
        transform: translateY(-8px);
        box-shadow: var(--shadow-lg);
    }

.product-image {
    height: 200px;
    /*background: linear-gradient(135deg, #F0F4F8, #E6EEF5);*/
    display: flex;
    align-items: center;
    justify-content: center;
}

.product-placeholder {
    width: 120px;
    height: 120px;
    background: linear-gradient(135deg, var(--bg-light), #DCE8F2);
    border-radius: var(--radius-md);
}

.product-content {
    padding: var(--spacing-lg);
}

.product-title {
    font-size: var(--font-lg);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.product-desc {
    min-height:50px;
    font-size: var(--font-xs);
    color: var(--text-muted);
    margin-bottom: var(--spacing-md);
    line-height: 1.6;
}

/* ===== 核心优势区 ===== */
.advantages-section {
    background: var(--bg-white);
    padding: var(--spacing-3xl) 0;
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-2xl);
}
/*奇数*/
    .advantages-grid .advantage-card:nth-child(odd) {
        background-color: white;
    }
        .advantages-grid .advantage-card:nth-child(odd) .advantage-title, .advantages-grid .advantage-card:nth-child(even) .advantage-desc {
            color: black !important;
        }
/*偶数*/
    .advantages-grid .advantage-card:nth-child(even) {
        background-color: var(--primary-color);
        color: white !important;
        /*margin-top: 50%;*/
        transform: translateY(50%);
    }
        .advantages-grid .advantage-card:nth-child(even) .advantage-title, .advantages-grid .advantage-card:nth-child(even) .advantage-desc {
            color: white !important;
        }
.advantage-card {
    text-align: center;
    padding: var(--spacing-lg);
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
}

    .advantage-card:hover {
        transform: translateY(-8px);
        box-shadow: var(--shadow-md);
    }

.advantage-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto var(--spacing-md);
    background: linear-gradient(135deg, #E6F3FF, #CCE5FF);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
}

    .advantage-icon svg {
        width: 28px;
        height: 28px;
    }

.advantage-title {
    font-size: var(--font-base);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.advantage-desc {
    font-size: var(--font-xs);
    color: var(--text-muted);
}

/* 数据卡片 */
.data-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-lg);
}
.data-card {
    /*background: var(--primary-color);*/
    /*background: url('/images2/banlan.png') no-repeat;
    background-size:100% 100%;*/
    color: var(--text-white);
    /*padding: var(--spacing-xl);*/
    border-radius: var(--radius-lg);
    text-align: center;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--primary-color);
    position: relative;
}

    .data-label {
        position: absolute;
        bottom: 20px;
        left: 20px;
        text-align: left;
        font-weight: 500;
        font-size: 16px !important;
    }

.data-number {
    font-size: var(--font-2xl);
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
}

.data-label {
    font-size: var(--font-sm);
    opacity: 0.9;
}

/* ===== 品牌概况区 ===== */
.about-section {
    /*background: var(--bg-light);*/
    background: white;
    padding: var(--spacing-3xl) 0;
}

.about-content {
    display: flex;
    gap: var(--spacing-2xl);
    align-items: flex-start;
}

.about-image {
    flex: 1;
}

.about-placeholder {
    width: 100%;
    height: 320px;
    background: linear-gradient(135deg, #E6EEF5, #DCE8F2);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}

.about-text {
    flex: 1;
}

.about-paragraph {
    font-size: var(--font-xs);
    color: var(--text-primary);
    /*line-height: 1.8;*/
    margin-bottom: var(--spacing-md);
    text-align: justify;
}

/* ===== 新闻动态区 ===== */
.news-section {
    background: #F2F2F2;
    padding: var(--spacing-3xl) 0;
}

.news-grid {
    display: grid;
    
    grid-template-columns: repeat(1, 1fr);
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.news-card {
    display: flex;
    /*border-radius: var(--radius-lg);*/
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
    position: relative;
}

    .news-card:hover {
        transform: translateY(-8px);
        box-shadow: var(--shadow-md);
        background: var(--bg-white);
        cursor: pointer;
    }
        .news-card:hover .news-title {
            color:var(--primary-color);
        }
        .news-card:hover .news-jiantou {
            background-color: var(--primary-color);
            cursor:pointer;
        }
        .news-card:hover .news-jiantou .news-jiantou-img {
            background: url('/images2/jiantou_white@2x.png') no-repeat;
        }
        .news-image {
            height: 180px;
            width: 300px;
            /*background: linear-gradient(135deg, #F0F4F8, #E6EEF5);*/
        }
    .news-image img {
        width: 100%;
        height: 100%;
        /*object-fit:contain;*/
        padding:20px;
    }

.news-content {
    padding: var(--spacing-lg);
    
}
.news-jiantou {
    position: absolute;
    background: white;
    width: 50px;
    height: 50px;
    border-radius: 30px;
    text-align: center;
    padding: 10px 10px;
    right: 16%;
    top: 30%;

}
    .news-jiantou .news-jiantou-img {
        background: url('/images2/jiantou_gray@2x(1).png') no-repeat;
        width: 50px;
        height: 50px;
    }
.news-date {
    font-size: var(--font-xs);
    color: var(--text-muted);
    margin-bottom: var(--spacing-xs);
}

.news-title {
    font-size: var(--font-base);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.news-desc {
    font-size: var(--font-xs);
    color: var(--text-muted);
    line-height: 1.6;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    width:550px;
}

.news-footer {
    text-align: center;
}



/* ===== 响应式设计 ===== */
@media (max-width: 1024px) {
    .products-grid {
        grid-template-columns: repeat(2, 1fr);
    }

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

    .data-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .news-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .navbar .container {
        flex-wrap: wrap;
        gap: var(--spacing-md);
    }

    .navbar-nav {
        order: 3;
        width: 100%;
        justify-content: center;
        flex-wrap: wrap;
    }

    .banner-content {
        flex-direction: column;
        text-align: center;
    }

    .banner-text {
        margin-bottom: var(--spacing-xl);
    }

    .products-grid {
        grid-template-columns: 1fr;
    }

    .advantages-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .data-grid {
        grid-template-columns: 1fr;
    }

    .news-grid {
        grid-template-columns: 1fr;
    }

    .about-content {
        flex-direction: column;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .qrcode-placeholder {
        margin: 0 auto;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-md);
    }

    .section-title {
        font-size: var(--font-2xl);
    }

    .advantages-grid {
        grid-template-columns: 1fr;
    }

    .banner-products {
        flex-direction: column;
        align-items: center;
    }

    .product-item {
        width: 140px;
        height: 140px;
    }
}