/* 通用排版 (保留原有风格) */
        .pro-box h1, .pro-box h2, .pro-box h3, .pro-box h4,
        .pro-box h5, .pro-box h6, .pro-box p,
        .pro-box ul, .pro-box ol, .pro-box dl,
        .pro-box li, .pro-box dd,
        .pro-box blockquote, .pro-box figure,
        .pro-box pre, .pro-box form {
            margin: 1em 0;
            line-height: 1.6;
        }
        .pro-box ul, .pro-box ol {
            padding-left: 2.5em;
        }
        .pro-box ul, .pro-box li {
            list-style: disc;
        }
        .pro-box strong {
            color: #000;
        }
        .pro-box h3 {
            font-weight: bold;
            font-size: 24px;
            color: #000;
            margin-top: 1.8rem;
        }
        .pro-box h4 {
            font-weight: bold;
            font-size: 1.1rem;
            margin: 0.5rem 0 0.2rem;
            color: #1e1e1e;
        }

        /* ----- 图片容器：单张居中 (solutionimg) ----- */
        .art1-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            margin: 1.8rem 0;
            width: 100%;
        }

        /* 单张图片 (solutionimg) 居中 + 圆角 + 阴影 */
        .art1-item img {
            max-width: 100%;
            height: auto;
            transition: box-shadow 0.2s, transform 0.2s;
            display: block;
        }

        /* 标题在图片下方 (h4) */
        .art1-item h4 {
            text-align: center;
            margin-top: 0.75rem;
            font-weight: 600;
            font-size: 1rem;
            color: #2c3e50;
            letter-spacing: 0.3px;
            max-width: 90%;
        }

        /* ----- 两张图左右并排 (art2-img) 响应式网格 ----- */
        .art2-img {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 2rem 1.8rem;
            margin: 2rem 0 1.5rem;
            align-items: start;
        }

        /* 每个 item 内部 (继承 .art1-item 样式，但覆盖为左对齐) */
        .art2-img .art1-item {
            margin: 0;
            align-items: center;
            width: 100%;
            padding: 0.6rem 0.6rem 1rem;
            transition: background 0.15s;
        }

        .art2-img .art1-item img {
            width: 100%;
            height: 390px;                       /* 固定高度 */
            object-fit: cover;                   /* 左右裁剪，保持比例 */
            object-position: center;             /* 居中裁剪 */
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.04);
            transition: box-shadow 0.2s, transform 0.2s;
            display: block;
        }

        .art2-img .art1-item h4 {
            margin-top: 0.65rem;
            color: #1e293b;
            text-align: center;
            word-break: break-word;
            padding: 0 0.2rem;
        }

        /* ---------- 响应式设计 ---------- */
        @media (max-width: 992px) {
            .pro-box {
                padding: 1.8rem 1.5rem 2rem;
            }
            .art2-img {
                gap: 1.5rem;
            }
        }

        @media (max-width: 768px) {
            .pro-box {
                padding: 1.5rem 1rem 1.8rem;
                margin-top: 20px;
            }
            .art2-img {
                grid-template-columns: 1fr;      /* 单列 */
                gap: 1.8rem;
                margin: 1.5rem 0;
            }
            .art2-img .art1-item img {
                aspect-ratio: 1 / 1;
            }
            .pro-box h3 {
                font-size: 1.5rem;
            }
        }

        @media (max-width: 540px) {
            .art2-img .art1-item {
                padding: 0.4rem 0.4rem 0.8rem;
            }

            .art2-img .art1-item img {
                aspect-ratio: 4 / 3;             /* 手机用更宽的比例，更直观 */
                max-height: 280px;
                object-fit: cover;
            }

            .pro-box {
                padding: 0;
            }

            .art1-item h4 {
                font-size: 0.9rem;
            }
            .art2-img .art1-item h4 {
                font-size: 0.9rem;
            }

            .pro-box h3 {
                font-size: 1.3rem;
            }
        }

        @media (max-width: 380px) {
            .art2-img .art1-item img {
                aspect-ratio: 1 / 1;
                max-height: 200px;
            }
        }
        

        /*表格*/
        .pro-box .pro-table{
            overflow-x: auto;
            white-space: nowrap;
        }
        .pro-box table {  
            border-width: 1px;  
            border-color: #f8c300;  
            border-collapse: collapse;  
            width: 100%;
        }  
        .pro-box table th {  
            border-width: 1px;  
            padding: 8px;  
            border-style: solid;  
            border-color: #f8c300;  
        }  
        .pro-box table td {  
            border-width: 1px;  
            padding: 8px;
            border-style: solid;  
            border-color: #ccc;  
        }  
        .pro-box table p {  
            margin: 0;
        } 
        .pro-box table tr:nth-child(odd) {
            background-color: #F7F7F7;
        }
        .pro-box table tr:nth-child(even) {
            background-color: #ffffff;
        }
        .pro-box .tr1,.pro-box table tr:nth-child(1){
            background-color: #D62A29;
            color: #fff;
            text-align: center;
        }
        .pro-box table tr:nth-child(1) td{
            padding: 28px 8px;
        }


        /*容器*/
        .wrap-1920 {
            overflow: hidden;
        }