/* 基础重置与容器样式 */
    body { 
        font-family: Arial, sans-serif; 
        color: #222222; 
        margin: 0; 
        padding: 0; 
        background: #fff; 
    }
    .container { 
        max-width: 1200px; 
        margin: 0 auto; 
        padding: 0 20px; 
    }
    h1 { 
        font-size: 32px; 
        font-weight: bold; 
        text-align: center; 
        margin: 0 0 15px 0; 
    }
    h2 { 
        font-size: 22px; 
        font-weight: bold; 
        margin: 0 0 10px 0; 
    }
    p { 
        font-size: 16px; 
        line-height: 1.8; 
        margin: 0; 
        text-align: justify; 
    }
    ul { 
        font-size: 16px; 
        line-height: 1.8; 
        margin: 10px 0; 
        padding-left: 20px; 
    }
    img { 
        max-width: 100%; 
        height: auto; 
        display: block; 
        margin: 0 auto; 
    }

    /* 通用灰色背景区域 */
    .section-gray { 
        background: #f5f5f5; 
        padding: 25px 0; 
    }
    .section-white { 
        background: #ffffff; 
        padding: 20px 0; 
    }

    /* 图文混排布局 */
    .flex-container { 
        display: flex; 
        align-items: center; 
        gap: 20px; 
        margin: 20px 0; 
        flex-wrap: wrap; 
    }
    .flex-item { 
        flex: 1; 
        min-width: 300px; 
    }
    .text-center { 
        text-align: center; 
    }

    /* 产品展示区域 */
    .gallery { 
        text-align: center; 
        margin: 20px 0; 
    }
    .gallery-row { 
        display: flex; 
        overflow-x: auto; 
        gap: 10px; 
        padding: 10px 0; 
        scroll-behavior: smooth; 
    }
    .gallery-img { 
        width: 48%; 
        max-width: 48%; 
        flex: 0 0 auto; 
    }

    /* 规格参数列表 */
    .specs-list { 
        list-style: none; 
        padding: 0; 
        margin: 15px 0; 
    }
    .specs-list li { 
        margin: 8px 0; 
        font-size: 16px; 
    }

    /* 包装内容 - 3列网格布局 */
    .package-grid { 
        display: grid; 
        grid-template-columns: repeat(3, 1fr); 
        gap: 15px; 
        margin: 20px auto; 
        max-width: 900px; 
    }
    .package-item { 
        border: 1px solid #dddddd; 
        border-radius: 4px; 
        padding: 15px; 
        text-align: center; 
        background: #fff; 
        box-shadow: 0 2px 4px rgba(0,0,0,0.1); 
    }
    /* 包装内容图片 - 尺寸增大 */
.package-img { 
    width: 140px; 
    height: 140px; 
    object-fit: contain; 
    margin: 0 auto 15px; 
}

    /* 响应式调整 */
    @media (max-width: 768px) {
        .flex-container { 
            flex-direction: column; 
        }
        .package-grid { 
            grid-template-columns: repeat(2, 1fr); 
        }
    }