/* 仅保留页面主体模块样式（banner、业务、产品、新闻），header/footer样式已拆分出去 */
        .section-title {
            text-align: center;
            margin-bottom: 40px;
            color: var(--zh-dark-blue);
            font-size: 28px;
            font-weight: 600;
            position: relative;
        }
        .section-title::after {
            content: '';
            position: absolute;
            bottom: -10px;
            left: 50%;
            transform: translateX(-50%);
            width: 80px;
            height: 3px;
            background-color: var(--zh-gold);
        }
        /* 多图轮播Banner - 增强版 */
        .banner {
            height: 580px;
            position: relative;
            overflow: hidden;
        }
        .banner-wrapper {
            display: flex;
            width: 100%;
            height: 100%;
            transition: transform 0.8s ease;
        }
        .banner-slide {
            min-width: 100%;
            height: 100%;
            position: relative;
        }
        .banner-img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .banner-text {
            position: absolute;
            top: 90%;
            left: 20%;
            transform: translateY(-50%);
            color: var(--white);
            max-width: 600px;
            z-index: 2;
            opacity: 0;
            transform: translateY(-50%) translateX(-50px);
            transition: all 0.8s ease 0.3s;
        }
        .banner-slide.active .banner-text {
            opacity: 1;
            transform: translateY(-50%) translateX(0);
        }
        .banner-text h2 {
            font-size: 48px;
            margin-bottom: 25px;
            line-height: 1.2;
        }
        .banner-text p {
            font-size: 20px;
            margin-bottom: 35px;
            line-height: 1.5;
        }

        /* Banner遮罩 */
        .banner-overlay {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, rgba(0,36,93,0.7), rgba(0,36,93,0.2));
            z-index: 1;
            pointer-events: none; 
        }

        /* 轮播控制按钮 */
        .banner-controls {
            position: absolute;
            bottom: 30px;
            left: 50%;
            transform: translateX(-50%);
            z-index: 3;
            display: flex;
            gap: 15px;
        }
        .banner-dot {
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background-color: rgba(255,255,255,0.5);
            cursor: pointer;
            transition: var(--transition);
        }
        .banner-dot.active {
            background-color: var(--zh-gold);
            transform: scale(1.2);
        }
        .banner-arrow {
            position: absolute;
            top: 50%;
            transform: translateY(-50%);
            width: 40px;
            height: 40px;
            background-color: rgba(0,36,93,0.5);
            color: white;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            z-index: 3;
            transition: var(--transition);
        }
        .banner-arrow:hover {
            background-color: var(--zh-gold);
        }
        .banner-arrow.prev {
            left: 20px;
        }
        .banner-arrow.next {
            right: 20px;
        }
        /* 核心业务模块 */
        .business {
            padding: 100px 0;
            background-color: var(--zh-gray);
        }
        .business-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 30px;
        }
        .business-card {
            background-color: var(--white);
            padding: 40px 30px;
            border-radius: 8px;
            text-align: center;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }
        .business-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 5px;
            height: 100%;
            background-color: var(--zh-blue);
            transition: var(--transition);
        }
        .business-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 15px 30px rgba(0,51,141,0.1);
        }
        .business-card:hover::before {
            width: 100%;
            opacity: 0.1;
        }
        .business-card h3 {
            color: var(--zh-dark-blue);
            margin: 20px 0;
            font-size: 22px;
            transition: var(--transition);
        }
        .business-card:hover h3 {
            color: var(--zh-blue);
        }
        .business-card p {
            color: var(--text-gray);
            line-height: 1.7;
        }
        /* 产品展示模块 */
        .products {
            padding: 100px 0;
        }
        .product-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 40px;
        }
        .product-item {
            border-radius: 8px;
            overflow: hidden;
            position: relative;
            box-shadow: 0 5px 15px rgba(0,0,0,0.08);
            transition: var(--transition);
        }
        .product-item:hover {
            transform: translateY(-5px);
            box-shadow: 0 15px 30px rgba(0,51,141,0.15);
        }
        .product-item img {
            width: 100%;
            height: 300px;
            object-fit: cover;
            transition: var(--transition);
        }
        .product-item:hover img {
            transform: scale(1.05);
        }
        .product-info {
            padding: 25px;
            background-color: var(--white);
            position: relative;
            z-index: 2;
        }
        .product-info h3 {
            color: var(--zh-dark-blue);
            margin-bottom: 12px;
            font-size: 18px;
        }
        .product-info p {
            color: var(--text-gray);
            margin-bottom: 20px;
            line-height: 1.6;
        }
        /* 新闻资讯 */
        .news {
            padding: 100px 0;
            background-color: var(--zh-gray);
        }
        .news-list {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
            gap: 30px;
        }
        .news-item {
            background-color: var(--white);
            border-radius: 8px;
            overflow: hidden;
            transition: var(--transition);
        }
        .news-item:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 25px rgba(0,51,141,0.1);
        }
        .news-item img {
            width: 100%;
            height: 220px;
            object-fit: cover;
        }
        .news-content {
            padding: 25px;
        }
        .news-date {
            color: var(--zh-gold);
            font-size: 14px;
            margin-bottom: 12px;
            display: inline-block;
        }
        .news-content h3 {
            font-size: 18px;
            margin-bottom: 15px;
            color: var(--zh-dark-blue);
            transition: var(--transition);
        }
        .news-item:hover .news-content h3 {
            color: var(--zh-blue);
        }
        .news-content p {
            color: var(--text-gray);
            line-height: 1.6;
        }
        /* 移动端主体模块适配 */
        @media (max-width: 992px) {
            .banner {
                height: 500px;
            }
            .banner-text {
                left: 5%;
                max-width: 80%;
            }
            .banner-text h2 {
                font-size: 32px;
            }
            .banner-text p {
                font-size: 16px;
            }
            .business, .products, .news {
                padding: 80px 0;
            }
        }
        @media (max-width: 768px) {
            /* 移动端Banner */
            .banner {
                height: 400px;
            }
            .banner-arrow {
                width: 30px;
                height: 30px;
            }
            .banner-text h2 {
                font-size: 26px;
                margin-bottom: 15px;
            }
            .banner-text p {
                font-size: 14px;
                margin-bottom: 20px;
            }
            .btn {
                padding: 10px 20px;
                font-size: 14px;
            }
            /* 移动端模块间距 */
            .business, .products, .news {
                padding: 60px 0;
            }
            .section-title {
                font-size: 24px;
                margin-bottom: 30px;
            }
            /* 移动端卡片 */
            .business-card {
                padding: 30px 20px;
            }
            .product-item img {
                height: 300px;
            }
            .product-info {
                padding: 20px;
            }
            .news-item img {
                height: 180px;
            }
        }
        @media (max-width: 480px) {
            .banner {
                height: 320px;
            }
            .banner-text h2 {
                font-size: 22px;
            }
            .banner-controls {
                gap: 10px;
            }
            .banner-dot {
                width: 10px;
                height: 10px;
            }
        }