/* 头部Banner */
        .office-banner {
            width: 100%;
            height: 260px;
            background: linear-gradient(135deg, #162238 0%, #203656 100%);
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            color: #fff;
            position: relative;
        }
        .office-banner h1 {
            font-size: 36px;
            font-weight: 400;
            letter-spacing: 3px;
            margin-bottom: 12px;
        }
        .office-banner p {
            font-size: 16px;
            opacity: 0.75;
        }
        /* 主体容器 */
        .container1 {
            max-width: 1400px;
            margin: 0 auto;
            padding: 60px 24px;
        }
        /* 全国总地图 */
        .map-wrap {
            width: 100%;
            height: 460px;
            background: #fff;
            border-radius: 16px;
            box-shadow: 0 8px 30px rgba(0,0,0,0.08);
            padding: 20px;
            margin-bottom: 50px;
        }
        #chinaMap {
            width: 100%;
            height: 100%;
            border-radius: 12px;
        }
        /* 筛选+列表布局 */
        .layout-row {
            display: flex;
            gap: 36px;
        }
        /* 左侧省市筛选栏 */
        .filter-side {
            width: 260px;
            flex-shrink: 0;
            background: #fff;
            border-radius: 14px;
            box-shadow: 0 6px 24px rgba(0,0,0,0.06);
            padding: 28px;
            height: fit-content;
            position: sticky;
            top: 30px;
        }
        .filter-side h3 {
            font-size: 18px;
            padding-bottom: 16px;
            border-bottom: 1px solid #eee;
            margin-bottom: 20px;
        }
        .prov-item {
            display: block;
            padding: 10px 12px;
            color: #555;
            text-decoration: none;
            border-radius: 8px;
            margin-bottom: 8px;
            transition: all 0.25s ease;
        }
        .prov-item:hover, .prov-item.active {
            background-color: #162238;
            color: #fff;
        }
        /* 右侧办事处列表 */
        .office-list {
            flex: 1;
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
            gap: 26px;
        }
        .office-card {
            background: #ffffff;
            border-radius: 14px;
            box-shadow: 0 6px 28px rgba(0,0,0,0.07);
            padding: 28px;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }
        .office-card:hover {
            transform: translateY(-6px);
            box-shadow: 0 12px 36px rgba(22, 34, 56, 0.12);
        }
        .office-card h4 {
            font-size: 20px;
            color: #162238;
            margin-bottom: 16px;
            padding-bottom: 12px;
            border-bottom: 1px solid #f0f0f0;
        }
        .office-info p {
            line-height: 2;
            color: #444;
            font-size: 15px;
        }
        .office-info p span {
            display: inline-block;
            width: 72px;
            color: #888;
        }
        .contact-btn {
            display: inline-block;
            margin-top: 18px;
            padding: 10px 22px;
            background-color: #162238;
            color: #fff;
            text-decoration: none;
            border-radius: 8px;
            font-size: 14px;
            transition: background 0.25s;
        }
        .contact-btn:hover {
            background-color: #25395c;
        }
        /* 空数据 */
        .empty-tips {
            grid-column: 1 / -1;
            text-align: center;
            padding: 80px 0;
            color: #999;
            font-size: 16px;
        }
        /* 适配移动端 */
        @media (max-width: 992px) {
            .layout-row {
                flex-direction: column;
            }
            .filter-side {
                width: 100%;
                position: static;
            }
            .office-list {
                grid-template-columns: 1fr;
            }
            .office-banner h1 {
                font-size: 28px;
            }
        }