/* ===================== 3. 子导航样式（QQ浏览器交互优化） ===================== */
        .sub-nav {
            width: 80%;
            background-color: #f5f5f5;
            z-index: 90;
			margin:50px auto 0 auto;
        }

        .sub-nav-container {
            width: 100%;
            max-width: 1520px;
            margin: 0 auto;
            display: -webkit-box;
            display: -moz-box;
            display: -ms-flexbox;
            display: -webkit-flex;
            display: flex;
            -webkit-box-pack: stretch;
            -moz-box-pack: stretch;
            -ms-flex-pack: stretch;
            -webkit-justify-content: stretch;
            justify-content: stretch;
            -webkit-flex-direction: row;
            flex-direction: row;
            -webkit-flex-wrap: nowrap;
            flex-wrap: nowrap;
        }

        .sub-nav-item {
            -webkit-box-flex: 1;
            -webkit-flex: 1;
            -ms-flex: 1;
            flex: 1;
            text-align: center;
            padding: 12px 0;
            text-decoration: none;
            color: #47d1c3;
            font-size: 16px;
            font-weight: 500;
            -webkit-transition: all 0.3s;
            transition: all 0.3s;
            border: none;
            border-right: 1px solid #e0e0e0;
            display: block;
            position: relative;
            white-space: nowrap;
            -webkit-tap-highlight-color: transparent;
        }

        .sub-nav-item:last-child {
            border-right: none;
        }

        .sub-nav-item.active {
            color: #fff;
            background-color: #47d1c3;
        }

        .sub-nav-item:hover {
            color: #fff;
            background-color: #47d1c3;
        }

        /* ===================== 4. 分院机构样式 ===================== */
        .common-container {
            width: 80%;
            max-width: 1520px;
            margin: 0 auto;
        }

        .branch-section {
            padding: 60px 0;
        }

        .branch-title {
            margin-bottom: 25px;
        }

        .branch-title-en {
            font-size: 30px;
            font-weight: 500;
            color: #47d1c3;
            margin: 0;
            line-height: 1.2;
            letter-spacing: 1px;
        }

        .branch-title-cn {
            font-size: 22px;
            font-weight: 400;
            color: #333333;
            margin: 12px 0 30px 0;
            line-height: 1.2;
            letter-spacing: 0.5px;
        }

        .branch-list {
            display: -webkit-box;
            display: -moz-box;
            display: -ms-flexbox;
            display: -webkit-flex;
            display: flex;
            -webkit-flex-wrap: wrap;
            flex-wrap: wrap;
            -webkit-justify-content: space-between;
            justify-content: space-between;
            margin: 0 -10px;
            width: calc(100% + 20px);
        }

        .branch-item {
            -webkit-box-flex: 0;
            -ms-flex: 0 1 calc(50% - 20px);
            flex: 0 1 calc(50% - 20px);
            width: calc(50% - 20px);
            min-width: 280px;
            display: -webkit-box;
            display: -moz-box;
            display: -ms-flexbox;
            display: -webkit-flex;
            display: flex;
            -webkit-box-align: flex-start;
            -ms-flex-align: flex-start;
            -webkit-align-items: flex-start;
            align-items: flex-start;
            margin: 0 10px 50px 0;
        }

        .branch-img {
            -webkit-flex-shrink: 0;
            -ms-flex-negative: 0;
            flex-shrink: 0;
            width: 100%;
            height: auto;
			max-width:200px;
			padding-left:10px;
			max-height:200px;
            object-fit: cover;
        }

        .branch-info {
            -webkit-box-flex: 1;
            -ms-flex: 1 1 auto;
            flex: 1 1 auto;
            word-wrap: break-word;
            overflow-wrap: break-word;
            padding-left: 15px;
        }

        .branch-name {
            font-size: 18px;
            color: #333;
            font-weight: 600;
            margin-bottom: 12px;
            width:100%;
        }

        .branch-contact {
            display: -webkit-box;
            display: -moz-box;
            display: -ms-flexbox;
            display: -webkit-flex;
            display: flex;
            -webkit-flex-wrap: wrap;
            flex-wrap: wrap;
            -webkit-box-align: flex-start;
            -ms-flex-align: flex-start;
            -webkit-align-items: flex-start;
            align-items: flex-start;
            margin: 0 -10px;
        }

        .branch-address, .branch-phone {
            font-size: 16px;
            color: #666;
            line-height: 1.6;
            margin-bottom: 0;
            width: 100%;
            padding: 0 10px;
        }

        

        /* ===================== 响应式适配（QQ浏览器重点优化） ===================== */
        @media screen and (max-width: 768px) {
            /* 头部导航移动端 */
            .container {
                display: -webkit-flex;
                display: flex;
                -webkit-flex-wrap: wrap;
                flex-wrap: wrap;
                margin-bottom: 16px;
            }
            .nav-lang-group {
                width: 100%;
                -webkit-justify-content: space-between;
                justify-content: space-between;
            }
            .nav {
                margin-right: 20px;
            }
            .nav ul {
                font-size: 0;
                letter-spacing: -0.3em;
            }
            .nav li {
                font-size: 16px;
                letter-spacing: normal;
                margin-right: 20px;
            }
            .nav li:last-child {
                margin-right: 0;
            }
            .nav a, .lang-item {
                line-height: 22.4px;
            }
            .nav a {
                font-size: 16px;
                letter-spacing: 0.3px;
                color: #000;
            }
            .lang-switch {
                border-radius: 6px;
            }
            .lang-item {
                padding: 2px 4px;
                color: #FFF !important;
                line-height: 20px;
            }

            /* 横幅移动端 */
            .banner-container {
                height: clamp(300px, 80vh, 690px);
            }

            /* 子导航移动端 */
            .sub-nav-container {
                width: 90%;
                -webkit-flex-wrap: nowrap;
                flex-wrap: nowrap;
            }
            .sub-nav-item {
                padding: 10px 0;
                font-size: 14px;
                white-space: nowrap;
                border-right: 1px solid #e0e0e0;
                color: #47d1c3;
            }
            .sub-nav-item:last-child {
                border-right: none;
            }

            /* 分院机构移动端 */
            .branch-item {
                -webkit-box-orient: vertical;
                -webkit-box-direction: normal;
                -webkit-flex-direction: column;
                -ms-flex-direction: column;
                flex-direction: column;
                width: 100%;
                -webkit-box-flex: 1;
                -ms-flex: 1 1 100%;
                flex: 1 1 100%;
            }
            .branch-img {
                width: 100%;
                height: auto;
                min-height: 180px;
            }
            .branch-contact {
                -webkit-box-orient: vertical;
                -webkit-box-direction: normal;
                -webkit-flex-direction: column;
                -ms-flex-direction: column;
                flex-direction: column;
                -webkit-box-align: flex-start;
                -ms-flex-align: flex-start;
                -webkit-align-items: flex-start;
                align-items: flex-start;
                margin: 0;
            }
            .branch-address, .branch-phone {
                width: 100%;
                padding: 0;
                margin-bottom: 8px;
            }
            .branch-title-en {
                font-size: 24px;
            }
            .branch-title-cn {
                font-size: 18px;
                margin: 10px 0 25px 0;
            }
        }

        /* 极小屏幕（手机竖屏）适配 */
        @media (max-width: 480px) {
            .branch-section {
                padding: 30px 0;
            }
            .branch-item {
                min-width: 100%;
                margin: 0 0 20px 0;
            }
            .branch-list {
                margin: 0;
                width: 100%;
            }
            
            .footer {
                padding: 40px 20px 20px;
            }
            
            .footer-copyright {
                white-space: normal;
            }
            .sub-nav-item, .lang-item, .footer-column a {
                -webkit-tap-highlight-color: transparent;
            }