:root {
            --primary-blue: #0A2463;
            --accent-green: #4CAF50;
            --neutral-white: #FFFFFF;
            --neutral-gray: #F5F7FA;
            --text-dark: #1a1a1a;
            --text-light: #666666;
            --border-color: #E0E0E0;
            --shadow: 0 4px 20px rgba(10, 36, 99, 0.1);
            --shadow-hover: 0 10px 30px rgba(10, 36, 99, 0.15);
            --transition: all 0.3s ease;
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            font-family: 'Open Sans', sans-serif;
            color: var(--text-dark);
            background-color: var(--neutral-white);
            line-height: 1.6;
            overflow-x: hidden;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-family: 'Montserrat', sans-serif;
            font-weight: 700;
            color: var(--primary-blue);
            margin-bottom: 1rem;
        }

        h1 {
            font-size: 2.8rem;
            line-height: 1.2;
        }

        h2 {
            font-size: 2.2rem;
            line-height: 1.3;
        }

        h3 {
            font-size: 1.6rem;
        }

        h4 {
            font-size: 1.25rem;
        }

        p {
            margin-bottom: 1rem;
            color: var(--text-light);
            font-size: 1.05rem;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition);
        }

        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        .line-2 {
            overflow: hidden;
            text-overflow: ellipsis;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
        }

        .section {
            padding: 100px 0;
        }

        .section-alt {
            background-color: var(--neutral-gray);
        }

        .section-title {
            text-align: center;
            margin-bottom: 60px;
        }

        .section-title h2 {
            font-size: 2.2rem;
            margin-bottom: 15px;
        }

        .section-title p {
            max-width: 700px;
            margin: 0 auto;
            font-size: 1.1rem;
        }

        /* 按钮样式 */
        .btn {
            display: inline-block;
            padding: 8px 32px;
            background-color: var(--primary-blue);
            color: var(--neutral-white);
            border: none;
            border-radius: 6px;
            font-family: 'Montserrat', sans-serif;
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            transition: var(--transition);
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .btn:hover {
            background-color: #081a4a;
            transform: translateY(-2px);
            box-shadow: 0 8px 25px rgba(10, 36, 99, 0.25);
        }

        .btn::after {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
            transform: translateX(-100%);
            transition: transform 0.6s ease;
        }

        .btn:hover::after {
            transform: translateX(100%);
        }

        .btn-secondary {
            background-color: var(--accent-green);
        }

        .btn-secondary:hover {
            background-color: #43a047;
        }

        .btn-outline {
            background-color: transparent;
            border: 2px solid var(--primary-blue);
            color: var(--primary-blue);
        }

        .btn-outline:hover {
            background-color: var(--primary-blue);
            color: var(--neutral-white);
        }

        .btn-light {
            background-color: rgba(255, 255, 255, 0.1);
            border: 1px solid rgba(255, 255, 255, 0.3);
            color: var(--neutral-white);
        }

        .contactBtn {
         font-size: 14px !important;
         padding: 6px 10px 3px !important;
         min-height: 35px !important;
         font-weight: 400 !important;

        }

        /* 导航栏 */
        header {
            background-color: var(--neutral-white);
            box-shadow: var(--shadow);
            position: fixed;
            top: 0;
            width: 100%;
            z-index: 1000;
            transition: var(--transition);
        }

        header.scrolled {
            box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
            background-color: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
        }

        .nav-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 18px 20px;
            height: 60px;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 12px;
            font-family: 'Montserrat', sans-serif;
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--primary-blue);
            text-decoration: none;
        }

        .logo i {
            color: var(--accent-green);
            font-size: 1.8rem;
        }

        .logo span {
            letter-spacing: -0.5px;
        }

        .nav-menu {
            display: flex;
            gap: 30px;
            align-items: center;
            list-style: none;
        }

        .nav-menu li {
            position: relative;
        }

        .nav-link {
            font-family: 'Montserrat', sans-serif;
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--text-dark);
            position: relative;
            padding: 5px 0;
            text-decoration: none;
            display: block;
        }

        .nav-link:hover {
            color: var(--primary-blue);
        }

        .nav-link::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background-color: var(--accent-green);
            transition: var(--transition);
        }

        .nav-link:hover::after {
            width: 100%;
        }

        /* 点击导航栏时去掉焦点边框/轮廓线 */
        .nav-menu .nav-link:focus,
        .nav-menu .dropdown-toggle:focus,
        .nav-menu .dropdown-mega-nav-item:focus,
        .nav-menu .dropdown-mega-card:focus {
            outline: none;
            border: none;
        }

        /* 下拉菜单样式 */
        .dropdown {
            position: relative;
            cursor: pointer;
            z-index: 1;
        }

        .dropdown:hover {
            z-index: 10002;
        }

        .dropdown-toggle {
            display: flex;
            align-items: center;
            gap: 5px;
        }

        .dropdown-toggle i {
            font-size: 12px;
            transition: var(--transition);
        }

        .dropdown:hover .dropdown-toggle i {
            transform: rotate(180deg);
        }

        .dropdown-menu {
            position: absolute;
            top: 100%;
            left: 0;
            background: var(--neutral-white);
            border-radius: 6px;
            box-shadow: var(--shadow-hover);
            min-width: 200px;
            opacity: 0;
            visibility: hidden;
            transform: translateY(10px);
            transition: var(--transition);
            z-index: 10001;
            overflow: hidden;
        }

        .dropdown:hover .dropdown-menu {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }

        .dropdown-item {
            display: block;
            padding: 12px 20px;
            text-decoration: none;
            color: var(--text-light);
            font-size: 14px;
            transition: var(--transition);
            border-left: 3px solid transparent;
        }

        .dropdown-item:hover {
            background-color: var(--neutral-gray);
            color: var(--primary-blue);
            border-left-color: var(--accent-green);
        }

        .dropdown-item i {
            margin-right: 10px;
            width: 16px;
            text-align: center;
            color: var(--accent-green);
        }

        .dropdown-divider {
            height: 1px;
            background-color: var(--border-color);
            margin: 5px 0;
        }

        /* 软件系统悬停 mega 菜单：PC 端撑满视口宽度（fixed 相对视口，不受父级 container 限制） */
        @media (min-width: 769px) {
            .dropdown .dropdown-menu.mega {
                position: fixed;
                left: 0;
                right: 0;
                width: 100%;
                top: 60px;
                margin: 0;
                padding: 0;
                transform: translateY(10px);
                box-sizing: border-box;
                border: none !important;
                box-shadow: none !important;
                outline: none !important;
                overflow: visible;
                z-index: 10002;
            }

            .dropdown:hover .dropdown-menu.mega,
            .dropdown.active .dropdown-menu.mega {
                transform: translateY(0);
            }

            .dropdown.active .dropdown-menu.mega {
                opacity: 1;
                visibility: visible;
            }

            .dropdown-mega-inner {
                display: flex;
                flex-wrap: nowrap;
                min-height: 560px;
                width: 100%;
                max-width: 100%;
                margin: 0;
                border: none;
                box-sizing: border-box;
            }

            .dropdown-mega-left {
                width: 300px;
                min-width: 300px;
                flex-shrink: 0;
                background: var(--neutral-gray);
                padding: 12px 0;
                border: none !important;
                max-height: 560px;
                overflow-y: auto;
            }

            .dropdown-mega-right {
                flex: 1;
                min-width: 0;
                padding: 24px 32px;
                overflow: visible;
                box-sizing: border-box;
                border: none;
            }
        }

        .dropdown-mega-nav-item {
            display: block;
            width: 100%;
            padding: 14px 16px;
            text-align: left;
            font-size: 14px;
            font-weight: 600;
            color: var(--text-dark);
            background: none;
            border: none !important;
            cursor: pointer;
            transition: var(--transition);
            text-decoration: none;
            white-space: nowrap;
        }

        .dropdown-mega-nav-item:hover,
        .dropdown-mega-nav-item.active {
            background: rgba(10, 36, 99, 0.08);
            color: var(--primary-blue);
        }

        .dropdown-mega-nav-item i {
            margin-right: 8px;
            width: 16px;
            text-align: center;
            color: var(--accent-green);
        }

        .dropdown-mega-right {
            flex: 1;
            padding: 24px 32px;
            overflow: hidden;
            box-sizing: border-box;
            border: none;
        }

        .dropdown-mega-panel {
            display: none;
        }

        .dropdown-mega-panel.active {
            display: block;
        }

        .dropdown-mega-panel-title {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--primary-blue);
            margin-bottom: 16px;
        }

        .dropdown-mega-panel-desc {
            font-size: 0.95rem;
            color: var(--text-light);
            line-height: 1.6;
            margin: 0;
        }

        .dropdown-mega-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px 24px;
            width: 100%;
        }

        .dropdown-mega-card {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            padding: 12px 8px;
            text-decoration: none;
            color: inherit;
            transition: var(--transition);
            border-radius: 8px;
            min-width: 0;
        }

        .dropdown-mega-card:hover {
            background: var(--neutral-gray);
        }

        .dropdown-mega-card-icon {
            width: 42px;
            height: 42px;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            flex-shrink: 0;
        }

        .dropdown-mega-card-icon.orange {
            background: rgba(255, 152, 0, 0.15);
            color: #f57c00;
        }

        .dropdown-mega-card-icon.purple {
            background: rgba(156, 39, 176, 0.15);
            color: #7b1fa2;
        }

        .dropdown-mega-card-icon.green {
            background: rgba(76, 175, 80, 0.15);
            color: #388e3c;
        }

        .dropdown-mega-card-icon.blue {
            background: rgba(33, 150, 243, 0.15);
            color: #1976d2;
        }

        .dropdown-mega-card-icon.yellow {
            background: rgba(255, 193, 7, 0.2);
            color: #f9a825;
        }

        .dropdown-mega-card-text h4 {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-dark);
            margin-bottom: 4px;
            line-height: 1.3;
        }

        .dropdown-mega-card-text p {
            font-size: 12px;
            color: var(--text-light);
            margin: 0;
            line-height: 1.4;
        }

        .dropdown-mega-card-text p:empty {
            display: none;
        }

        /* 药品与耗材类系统：七大分类列表，每项前带图标 */
        .dropdown-mega-sections {
            max-height: min(75vh, 520px);
            overflow-y: auto;
        }

        .dropdown-mega-section {
            margin-bottom: 20px;
        }

        .dropdown-mega-section:last-child {
            margin-bottom: 0;
        }

        .dropdown-mega-section-title {
            font-size: 14px;
            font-weight: 700;
            color: var(--primary-blue);
            margin-bottom: 10px;
            padding-bottom: 6px;
            border-bottom: 1px solid var(--border-color);
        }

        .dropdown-mega-section-list {
            display: flex;
            flex-wrap: wrap;
            gap: 8px 16px;
        }

        .dropdown-mega-card-row {
            display: flex;
            align-items: center;
            padding: 8px 12px;
            min-width: 0;
            flex: 0 0 auto;
            width: calc(50% - 8px);
        }

        .dropdown-mega-card-row .dropdown-mega-card-icon {
            width: 36px;
            height: 36px;
            min-width: 36px;
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            margin-right: 10px;
        }

        .dropdown-mega-card-row .dropdown-mega-card-text h4 {
            margin: 0;
            font-size: 13px;
            font-weight: 600;
        }

        .dropdown-mega-card-row .dropdown-mega-card-text p {
            display: none;
        }

        .nav-cta {
            margin-left: 15px;
        }

        .mobile-menu-btn {
            display: none;
            font-size: 1.5rem;
            background: none;
            border: none;
            color: var(--primary-blue);
            cursor: pointer;
            padding: 10px;
        }

        /* Hero Section */
        .hero {
            background: url("img/index.png") no-repeat;
            background-size: 100% 100%;
            width: 100%;
            color: var(--neutral-white);
            padding: 240px 0 100px;
            position: relative;
            overflow: hidden;
        }

        .hero::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" width="100" height="100" viewBox="0 0 100 100"><circle cx="50" cy="50" r="40" fill="none" stroke="rgba(76,175,80,0.1)" stroke-width="1"/></svg>');
            background-size: 200px;
            opacity: 0.3;
        }

        .hero-content {
            position: relative;
            z-index: 1;
            max-width: 900px;
        }

        .hero-badge {
            display: inline-block;
            background-color: rgba(76, 175, 80, 0.2);
            color: var(--accent-green);
            padding: 8px 18px;
            border-radius: 30px;
            font-size: 0.85rem;
            font-weight: 600;
            margin-bottom: 20px;
            border: 1px solid rgba(76, 175, 80, 0.3);
        }

        .hero h1 {
            color: var(--neutral-white);
            font-size: 3.2rem;
            margin-bottom: 1.5rem;
            line-height: 1.2;
        }

        .hero p {
            color: rgba(255, 255, 255, 0.9);
            font-size: 1.05rem;
            margin-bottom: 2.5rem;
            max-width: 700px;
        }

        .hero-buttons {
            display: flex;
            gap: 15px;
            flex-wrap: wrap;
        }

        .hero-stats {
            display: flex;
            gap: 40px;
            margin-top: 50px;
            flex-wrap: wrap;
        }

        .stat-item {
            text-align: center;
        }

        .stat-number {
            font-family: 'Montserrat', sans-serif;
            font-size: 2rem;
            font-weight: 700;
            color: var(--accent-green);
            margin-bottom: 5px;
        }

        .stat-label {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.8);
        }

        /* 软件系统展示 - 左侧菜单 + 右侧内容（参考 ABC 产品功能） */
        .systems-section {
            padding: 100px 0 80px;
        }

        .systems-wrap {
            display: flex;
            gap: 40px;
            align-items: flex-start;
            margin-top: 40px;
        }

        .system-nav {
            width: 220px;
            flex-shrink: 0;
            background: var(--neutral-white);
            border-radius: 12px;
            box-shadow: var(--shadow);
            overflow: hidden;
            border: 1px solid var(--border-color);
        }

        @media (max-width: 768px) {
            .system-nav {
                width: 100%;
                overflow: visible;
            }
        }

        .system-nav-item {
            display: flex;
            align-items: center;
            gap: 12px;
            width: 100%;
            padding: 18px 20px;
            font-family: 'Montserrat', sans-serif;
            font-weight: 600;
            font-size: 14px;
            color: var(--text-dark);
            background: none;
            border: none;
            border-left: 4px solid transparent;
            cursor: pointer;
            transition: var(--transition);
            text-align: left;
        }

        .system-nav-item:hover {
            background-color: var(--neutral-gray);
            color: var(--primary-blue);
        }

        .system-nav-item.active {
            background-color: rgba(10, 36, 99, 0.08);
            color: var(--primary-blue);
            border-left-color: var(--accent-green);
        }

        .system-nav-item i {
            font-size: 1.2rem;
            color: var(--accent-green);
        }

        /* 产品中心 - 与核心医疗软件系统相同的左侧菜单 + 右侧内容布局 */
        .products-section {
            padding: 100px 0 80px;
        }

        .products-wrap {
            display: flex;
            gap: 40px;
            align-items: flex-start;
            margin-top: 40px;
        }

        .product-nav {
            width: 220px;
            flex-shrink: 0;
            background: var(--neutral-white);
            border-radius: 12px;
            box-shadow: var(--shadow);
            overflow: hidden;
            border: 1px solid var(--border-color);
        }

        @media (max-width: 768px) {
            .product-nav {
                width: 100%;
                overflow: visible;
            }
        }

        .product-nav-item {
            display: flex;
            align-items: center;
            gap: 12px;
            width: 100%;
            padding: 18px 20px;
            font-family: 'Montserrat', sans-serif;
            font-weight: 600;
            font-size: 1rem;
            color: var(--text-dark);
            background: none;
            border: none;
            border-left: 4px solid transparent;
            cursor: pointer;
            transition: var(--transition);
            text-align: left;
        }

        .product-nav-item:hover {
            /* background-color: var(--neutral-gray); */
            color: var(--primary-blue);
        }

        .product-nav-item.active {
            /* background-color: rgba(10, 36, 99, 0.08); */
            color: var(--primary-blue);
            border-left-color: var(--accent-green);
        }

        .product-nav-item i {
            font-size: 1.2rem;
            color: var(--accent-green);
        }

        .product-panel {
            flex: 1;
            min-width: 0;
            position: relative;
        }

        .product-panel-wrap {
            position: relative;
            flex: 1;
            min-width: 0;
        }

        .product-carousel-btn {
            display: none;
            position: absolute;
            top: 50%;
            transform: translateY(-50%);
            width: 42px;
            height: 42px;
            border: 1px solid rgba(255, 255, 255, 0.24);
            border-radius: 50%;
            background: linear-gradient(180deg, rgba(10, 36, 99, 0.92) 0%, rgba(8, 26, 74, 0.82) 100%);
            color: var(--neutral-white);
            backdrop-filter: blur(10px);
            box-shadow: 0 14px 30px rgba(10, 36, 99, 0.26);
            align-items: center;
            justify-content: center;
            cursor: pointer;
            z-index: 3;
            transition: var(--transition);
        }

        .product-carousel-btn:hover {
            background: linear-gradient(180deg, rgba(76, 175, 80, 0.96) 0%, rgba(67, 160, 71, 0.9) 100%);
            transform: translateY(-50%) scale(1.06);
        }

        .product-carousel-btn:disabled {
            opacity: 0.28;
            cursor: default;
            transform: translateY(-50%);
        }

        .product-carousel-prev {
            left: 12px;
        }

        .product-carousel-next {
            right: 12px;
        }

        .product-pagination {
            display: none;
            justify-content: center;
            gap: 8px;
            margin-top: 16px;
        }

        .product-pagination-dot {
            width: 8px;
            height: 8px;
            border: none;
            border-radius: 999px;
            padding: 0;
            background: rgba(10, 36, 99, 0.18);
            cursor: pointer;
            transition: var(--transition);
        }

        .product-pagination-dot.active {
            width: 22px;
            background: #0A2463;
            box-shadow: 0 4px 12px rgba(76, 175, 80, 0.35);
        }

        .product-content {
            display: none;
            animation: fadeIn 0.4s ease;
        }

        .product-content.active {
            display: block;
        }

        .system-panel {
            flex: 1;
            min-width: 0;
        }

        .system-content {
            display: none;
            animation: fadeIn 0.4s ease;
        }

        .system-content.active {
            display: block;
        }

        @keyframes fadeIn {
            from {
                opacity: 0;
                transform: translateY(20px);
            }

            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .system-card {
            background: var(--neutral-white);
            border-radius: 15px;
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: var(--transition);
            border: 1px solid var(--border-color);
        }

        .system-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-5px);
        }

        .system-header {
            padding: 40px;
            background: linear-gradient(135deg, rgba(10, 36, 99, 0.95) 0%, rgba(26, 58, 140, 0.95) 100%);
            color: var(--neutral-white);
            display: flex;
            align-items: center;
            gap: 25px;
        }

        .system-icon {
            width: 80px;
            height: 80px;
            background-color: rgba(76, 175, 80, 0.2);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-green);
            font-size: 2.2rem;
            flex-shrink: 0;
        }

        .system-header h3 {
            color: var(--neutral-white);
            margin-bottom: 5px;
            font-size: 1.8rem;
        }

        .system-header p {
            color: rgba(255, 255, 255, 0.8);
            margin-bottom: 0;
            max-width: 600px;
        }

        .system-body {
            padding: 40px;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
        }

        .system-features {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .feature-item {
            display: flex;
            gap: 15px;
            align-items: flex-start;
        }

        .feature-icon {
            width: 40px;
            height: 40px;
            background-color: rgba(76, 175, 80, 0.1);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-green);
            font-size: 1.1rem;
            flex-shrink: 0;
            margin-top: 2px;
        }

        .feature-content h4 {
            margin-bottom: 5px;
            color: var(--text-dark);
            font-size: 1.1rem;
        }

        .feature-content p {
            margin-bottom: 0;
            font-size: 0.95rem;
        }

        .system-visual {
            background: var(--neutral-gray);
            border-radius: 10px;
            padding: 30px;
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .system-visual::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" width="100" height="100" viewBox="0 0 100 100"><rect x="10" y="10" width="80" height="80" rx="5" fill="none" stroke="rgba(10,36,99,0.1)" stroke-width="1"/></svg>');
            background-size: 120px;
            opacity: 0.5;
        }

        .visual-icon {
            font-size: 4rem;
            color: var(--primary-blue);
            margin-bottom: 20px;
            opacity: 0.8;
        }

        .visual-label {
            font-family: 'Montserrat', sans-serif;
            font-weight: 600;
            color: var(--primary-blue);
            font-size: 1.1rem;
            margin-bottom: 10px;
        }

        .visual-description {
            font-size: 0.9rem;
            color: var(--text-light);
            max-width: 250px;
        }

        .advantages-compact {
            padding: 88px 0 96px;
            background: linear-gradient(180deg, #f7f9ff 0%, #f3f6fd 100%);
        }

        .advantages-compact .section-title {
            margin-bottom: 42px;
            text-align: center;
        }

        .advantages-compact .section-title h2 {
            font-size: 2.2rem;
            margin-bottom: 10px;
            color: #0f2f74;
            letter-spacing: -0.03em;
        }

        .advantages-compact .section-title p {
            font-size: 1rem;
            color: #6f7892;
            max-width: 720px;
            margin: 0 auto;
        }

        .tech-advantages-grid {
            display: grid;
            grid-template-columns: repeat(3, minmax(0, 1fr));
            gap: 22px;
            align-items: stretch;
        }

        .tech-card-compact {
            background: #ffffff;
            border-radius: 18px;
            padding: 30px 28px 26px;
            min-height: 246px;
            border: 1px solid rgba(24, 53, 120, 0.08);
            border-top: 4px solid #173d8f;
            box-shadow: 0 16px 32px rgba(26, 52, 110, 0.08);
            text-align: center;
            transition: transform 0.28s ease, box-shadow 0.28s ease, border-color 0.28s ease;
        }

        .tech-card-compact:hover {
            transform: translateY(-6px);
            box-shadow: 0 22px 44px rgba(21, 52, 120, 0.14);
            border-color: rgba(23, 61, 143, 0.16);
        }

        .tech-card-compact .tech-icon {
            width: 54px;
            height: 54px;
            margin: 0 auto 22px;
            border-radius: 50%;
            background: #eef2ff;
            color: #173d8f;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.35rem;
            box-shadow: inset 0 0 0 1px rgba(23, 61, 143, 0.05);
        }

        .tech-card-compact h4 {
            margin-bottom: 14px;
            font-size: 1.45rem;
            line-height: 1.35;
            font-weight: 700;
            color: #1a2540;
            letter-spacing: -0.02em;
        }

        .tech-card-compact p {
            margin-bottom: 0;
            font-size: 1rem;
            line-height: 1.72;
            color: #626b84;
        }

        /* 数据安全与合规 */
        .security-section {
            background: linear-gradient(135deg, var(--primary-blue) 0%, #1a3a8c 100%);
            color: var(--neutral-white);
            padding: 100px 0;
            position: relative;
            overflow: hidden;
        }

        .security-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" width="100" height="100" viewBox="0 0 100 100"><path d="M50 10 L90 25 L90 75 L50 90 L10 75 L10 25 Z" fill="none" stroke="rgba(76,175,80,0.1)" stroke-width="1"/></svg>');
            background-size: 150px;
            opacity: 0.3;
        }

        .security-section h2 {
            color: var(--neutral-white);
        }

        .security-section p {
            color: rgba(255, 255, 255, 0.8);
        }

        .security-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 30px;
            margin-top: 50px;
            position: relative;
            z-index: 1;
        }

        .security-item {
            background: rgba(255, 255, 255, 0.1);
            backdrop-filter: blur(10px);
            border-radius: 12px;
            padding: 30px;
            border: 1px solid rgba(255, 255, 255, 0.2);
            transition: var(--transition);
        }

        .security-item:hover {
            background: rgba(255, 255, 255, 0.15);
            transform: translateY(-5px);
        }

        .security-item h4 {
            color: var(--neutral-white);
            margin-bottom: 15px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .security-item h4 i {
            color: var(--accent-green);
        }

        .security-item p {
            margin-bottom: 0;
            font-size: 0.95rem;
        }

        .compliance-badges {
            display: flex;
            flex-wrap: wrap;
            gap: 15px;
            margin-top: 30px;
            justify-content: center;
        }

        .badge {
            background-color: rgba(76, 175, 80, 0.2);
            color: var(--accent-green);
            padding: 8px 16px;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 600;
            border: 1px solid rgba(76, 175, 80, 0.3);
        }

        /* 客户案例 */
        .case-studies {
            position: relative;
            margin-top: 50px;
        }

        .case-panel-wrap {
            position: relative;
            width: 100%;
        }

        .case-panel {
            display: grid;
            grid-template-columns: repeat(3, minmax(0, 1fr));
            gap: 30px;
        }

        .case-content {
            min-width: 0;
        }

        .case-content.active {
            display: block;
        }

        .case-card {
            background: var(--neutral-white);
            border-radius: 15px;
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: var(--transition);
            border: 1px solid var(--border-color);
        }

        .case-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-hover);
        }

        .case-header {
            padding: 25px;
            background: linear-gradient(135deg, rgba(10, 36, 99, 0.9) 0%, rgba(26, 58, 140, 0.9) 100%);
            color: var(--neutral-white);
            display: flex;
            align-items: flex-start;
            gap: 15px;
        }

        .case-icon {
            width: 100px;
            height: 100px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-green);
            font-size: 1.5rem;
        }

        .case-header>div {
            flex: 1;
            min-width: 0;
        }

        .case-header h4 {
            color: var(--neutral-white);
            margin-bottom: 0.25rem;
            font-size: 1.35rem;
            line-height: 1.4;
        }

        .case-header p {
            margin: 0;
            font-size: 0.9rem;
            opacity: 0.95;
        }

        .case-body {
            padding: 25px;
        }

        .case-stats {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 15px;
            margin-bottom: 20px;
        }

        .case-stat {
            text-align: center;
            padding: 15px;
            background-color: var(--neutral-gray);
            border-radius: 8px;
        }

        .case-stat-value {
            font-family: 'Montserrat', sans-serif;
            font-weight: 700;
            font-size: 1.4rem;
            color: var(--primary-blue);
            margin-bottom: 5px;
        }

        .case-stat-label {
            font-size: 0.8rem;
            color: var(--text-light);
        }

        .case-features {
            display: flex;
            flex-direction: column;
            gap: 10px;
            margin-bottom: 20px;
        }

        .case-feature {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 0.9rem;
        }

        .case-feature i {
            color: var(--accent-green);
            margin-top: 4px;
        }

        .case-quote {
            font-style: italic;
            color: var(--text-light);
            border-left: 3px solid var(--accent-green);
            padding-left: 15px;
            font-size: 0.9rem;
            margin-top: 15px;
        }

        .case-carousel-btn {
            position: absolute;
            top: 50%;
            transform: translateY(-50%);
            width: 42px;
            height: 42px;
            border: 1px solid rgba(255, 255, 255, 0.24);
            border-radius: 50%;
            background: linear-gradient(180deg, rgba(10, 36, 99, 0.92) 0%, rgba(8, 26, 74, 0.82) 100%);
            color: var(--neutral-white);
            box-shadow: 0 14px 30px rgba(10, 36, 99, 0.26);
            display: none;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            z-index: 3;
            transition: var(--transition);
        }

        .case-carousel-btn:hover {
            background: linear-gradient(180deg, rgba(76, 175, 80, 0.96) 0%, rgba(67, 160, 71, 0.9) 100%);
            transform: translateY(-50%) scale(1.06);
        }

        .case-carousel-btn:disabled {
            opacity: 0.28;
            cursor: default;
            transform: translateY(-50%);
        }

        .case-carousel-prev {
            left: 0;
        }

        .case-carousel-next {
            right: 0;
        }

        .case-pagination {
            display: none;
            justify-content: center;
            gap: 8px;
            margin-top: 16px;
        }

        .case-pagination-dot {
            width: 8px;
            height: 8px;
            border: none;
            border-radius: 999px;
            padding: 0;
            background: rgba(10, 36, 99, 0.18);
            cursor: pointer;
            transition: var(--transition);
        }

        .case-pagination-dot.active {
            width: 22px;
            background: var(--accent-green);
            box-shadow: 0 4px 12px rgba(76, 175, 80, 0.35);
        }

        /* CTA Section */
        .cta {
            background: linear-gradient(135deg, var(--primary-blue) 0%, #1a3a8c 100%);
            color: var(--neutral-white);
            text-align: center;
            padding: 100px 0;
            position: relative;
            overflow: hidden;
        }

        .cta::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" width="100" height="100" viewBox="0 0 100 100"><circle cx="50" cy="50" r="30" fill="none" stroke="rgba(76,175,80,0.1)" stroke-width="1"/></svg>');
            background-size: 180px;
            opacity: 0.3;
        }

        .cta h2 {
            color: var(--neutral-white);
            margin-bottom: 1rem;
            font-size: 2.5rem;
        }

        .cta p {
            color: rgba(255, 255, 255, 0.9);
            max-width: 700px;
            margin: 0 auto 2rem;
            font-size: 1.1rem;
        }

        .cta-buttons {
            display: flex;
            gap: 15px;
            justify-content: center;
            flex-wrap: wrap;
            position: relative;
            z-index: 1;
        }

        /* 页脚 */
        footer {
            background-color: #081a4a;
            color: var(--neutral-white);
            padding: 80px 0 40px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 60px;
        }

        .footer-column h4 {
            color: var(--neutral-white);
            margin-bottom: 1.5rem;
            font-size: 1.1rem;
            position: relative;
            padding-bottom: 10px;
        }

        .footer-column h4::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 40px;
            height: 2px;
            background-color: var(--accent-green);
        }

        .footer-links {
            list-style: none;
        }

        .footer-links li {
            margin-bottom: 12px;
        }

        .footer-links a {
            color: rgba(255, 255, 255, 0.7);
            font-size: 0.95rem;
            transition: var(--transition);
            display: inline-block;
        }

        .footer-links a:hover {
            color: var(--accent-green);
            transform: translateX(5px);
        }

        .footer-description {
            color: rgba(255, 255, 255, 0.7);
            font-size: 0.95rem;
            line-height: 1.7;
            max-width: 400px;
        }

        .footer-contact {
            display: flex;
            flex-direction: column;
            gap: 15px;
            margin-top: 20px;
        }

        .contact-item {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.7);
        }

        .contact-item i {
            color: var(--accent-green);
            width: 20px;
            text-align: center;
        }

        .social-links {
            display: flex;
            gap: 15px;
            margin-top: 25px;
        }

        .social-links a {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background-color: rgba(255, 255, 255, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--neutral-white);
            transition: var(--transition);
            font-size: 1.1rem;
        }

        .social-links a:hover {
            background-color: var(--accent-green);
            transform: translateY(-3px);
        }

        .footer-bottom {
            text-align: center;
            padding-top: 40px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            color: rgba(255, 255, 255, 0.5);
            font-size: 0.85rem;
        }

        .footer-bottom p {
            margin-bottom: 5px;
            color: rgba(255, 255, 255, 0.5);
        }

        .footer-bottom i {
            color: var(--accent-green);
            margin-right: 5px;
        }

        /* 页面导航 */
        .page-nav {
            position: fixed;
            bottom: 30px;
            right: 30px;
            background: var(--neutral-white);
            border-radius: 30px;
            box-shadow: 0 5px 25px rgba(0, 0, 0, 0.15);
            padding: 8px;
            z-index: 100;
            display: flex;
            flex-direction: column;
            gap: 5px;
            transition: var(--transition);
        }

        .page-nav button {
            width: 42px;
            height: 42px;
            border-radius: 50%;
            border: none;
            background-color: var(--neutral-gray);
            color: var(--primary-blue);
            font-weight: 700;
            cursor: pointer;
            transition: var(--transition);
            font-family: 'Montserrat', sans-serif;
        }

        .page-nav button.active {
            background-color: var(--primary-blue);
            color: var(--neutral-white);
            transform: scale(1.1);
        }

        .page-nav button:hover {
            background-color: var(--accent-green);
            color: var(--neutral-white);
        }
          .content{
           display: block;
            }
            .phoneContent{
width: 100%;
height: 100%;
     display: none;
            }

        /* 响应式设计 */
        @media (max-width: 992px) {
              .content{
           
                display: block;
            }
            .phoneContent{
     display: none;
            }
            .system-body {
                grid-template-columns: 1fr;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
  .content{display: block;
              
            }
            .phoneContent{
  display: none;
            }
            html,
            body {
                overflow-x: hidden;
                max-width: 100vw;
            }

            .container {
                padding-left: max(20px, env(safe-area-inset-left));
                padding-right: max(20px, env(safe-area-inset-right));
                max-width: 100%;
            }

            .section-title h2 {
                word-break: break-word;
            }

            .section-title p {
                word-break: break-word;
            }

            .nav-container {
                flex-wrap: wrap;
            }

            .nav-menu {
                display: none;
                flex-direction: column;
                width: 100%;
                order: 3;
                padding: 15px 0;
                padding-bottom: env(safe-area-inset-bottom, 15px);
                border-top: 1px solid var(--border-color);
                gap: 0;
                max-height: calc(100vh - 80px);
                overflow-y: auto;
                -webkit-overflow-scrolling: touch;
            }

            .nav-menu.mobile-open {
                display: flex !important;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                width: 100%;
                background: var(--neutral-white);
                padding: 20px;
                padding-left: max(20px, env(safe-area-inset-left));
                padding-right: max(20px, env(safe-area-inset-right));
                box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
                z-index: 999;
                max-height: calc(100vh - 80px);
                overflow-y: auto;
                -webkit-overflow-scrolling: touch;
            }

            .nav-menu li {
                width: 100%;
                text-align: left;
                padding: 0;
                border-bottom: 1px solid var(--neutral-gray);
            }

            .nav-menu li:last-child {
                border-bottom: none;
            }

            .nav-menu .nav-link,
            .nav-menu .dropdown-toggle {
                display: block;
                padding: 14px 16px;
                min-height: 44px;
                text-align: left;
            }

            /* 移动端下拉展开样式 */
            .nav-menu .dropdown-menu {
                position: static;
                opacity: 1;
                visibility: visible;
                transform: none;
                box-shadow: none;
                background: var(--neutral-white);
                margin: 0;
                max-height: 0;
                overflow: hidden;
                transition: max-height 0.35s ease;
            }

            .nav-menu .dropdown.active .dropdown-menu {
                max-height: 280px;
            }

            .nav-menu .dropdown.active .dropdown-menu.mega {
                position: static !important;
                max-height: min(75vh, 600px);
                overflow-y: auto;
                overflow-x: hidden;
                width: 100% !important;
                min-width: 0 !important;
                max-width: 100% !important;
                left: auto !important;
                margin-left: 0 !important;
                transform: none !important;
                -webkit-overflow-scrolling: touch;
            }

            .nav-menu .dropdown-mega-inner {
                flex-direction: column;
                min-height: 0;
                max-width: none;
            }

            .nav-menu .dropdown-mega-left {
                width: 100%;
                min-width: 0;
                max-height: min(45vh, 320px);
                overflow-y: auto;
                overflow-x: hidden;
                -webkit-overflow-scrolling: touch;
                display: flex;
                flex-direction: column;
                flex-wrap: nowrap;
                gap: 0;
                border: none !important;
            }

            .nav-menu .dropdown-mega-nav-item {
                width: 100%;
                min-height: 44px;
                flex: none;
                min-width: 0;
                white-space: normal;
                text-align: left;
            }

            .nav-menu .dropdown-mega-right {
                min-width: 0;
                padding: 16px 12px;
            }

            .nav-menu .dropdown-mega-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px 16px;
            }

            .nav-menu .dropdown-mega-panel-title {
                font-size: 1rem;
            }

            .nav-menu .dropdown-mega-panel-desc {
                font-size: 0.9rem;
            }

            .nav-menu .dropdown-mega-card {
                padding: 10px 6px;
            }

            .nav-menu .dropdown-mega-card-text h4 {
                font-size: 13px;
            }

            .nav-menu .dropdown-mega-card-text p {
                font-size: 11px;
            }

            .mobile-menu-btn {
                display: block;
            }

            .hero h1 {
                font-size: 2.4rem;
            }

            .hero-stats {
                gap: 25px;
            }

            .stat-number {
                font-size: 1rem;
            }

            .stat-label {
                font-size: 0.5rem;
                color: rgba(255, 255, 255, 0.8);
            }

            .systems-wrap {
                flex-direction: column;
                gap: 20px;
            }

            /* 移动端：系统 tab 横向滚动，避免 11 项竖排过长 */
            .system-nav {
                width: 100% !important;
                display: flex !important;
                flex-direction: row !important;
                flex-wrap: nowrap !important;
                overflow-x: auto !important;
                overflow-y: hidden !important;
                -webkit-overflow-scrolling: touch;
                scrollbar-width: none;
                gap: 0;
                padding: 8px 0;
                border-radius: 12px;
                border: 1px solid var(--border-color);
                background: var(--neutral-white);
                box-shadow: var(--shadow);
            }

            .system-nav::-webkit-scrollbar {
                display: none;
            }

            .system-nav-item {
                -webkit-tap-highlight-color: transparent;
                touch-action: manipulation;
                flex: 0 0 auto;
                min-width: max-content;
                min-height: 44px;
                padding: 12px 16px;
                justify-content: center;
                border-left: none;
                border-bottom: 3px solid transparent;
                white-space: nowrap;
            }

            .system-nav-item.active {
                border-left: none;
                border-bottom-color: var(--accent-green);
            }

            .products-wrap {
                flex-direction: column;
                gap: 20px;
            }

            /* 移动端：产品 tab 横向滚动 */
            .product-nav {
                width: 100% !important;
                display: flex !important;
                flex-direction: row !important;
                flex-wrap: nowrap !important;
                overflow-x: auto !important;
                overflow-y: hidden !important;
                -webkit-overflow-scrolling: touch;
                scrollbar-width: none;
                gap: 0;
                padding: 8px 0;
                border-radius: 12px;
                border: 1px solid var(--border-color);
                background: var(--neutral-white);
                box-shadow: var(--shadow);
            }

            .product-nav::-webkit-scrollbar {
                display: none;
            }

            .product-nav-item {
                -webkit-tap-highlight-color: transparent;
                touch-action: manipulation;
                flex: 0 0 auto;
                min-width: max-content;
                min-height: 44px;
                padding: 12px 16px;
                justify-content: center;
                border-left: none;
                border-bottom: 3px solid transparent;
                white-space: nowrap;
            }

            .product-nav-item.active {
                border-left: none;
                border-bottom-color: var(--accent-green);
            }

            /* 移动端：软件系统内容横向滑动展示，完全展示 */
            .system-panel {
                width: 100%;
                min-width: 0;
                max-width: 100%;
                overflow-x: auto;
                overflow-y: hidden;
                -webkit-overflow-scrolling: touch;
                scroll-snap-type: x mandatory;
                scrollbar-width: none;
                display: flex !important;
                flex-wrap: nowrap;
            }

            .system-panel::-webkit-scrollbar {
                display: none;
            }

            .system-panel .system-content {
                flex: 0 0 100%;
                width: 100%;
                min-width: 100%;
                max-width: 100%;
                scroll-snap-align: start;
                display: block !important;
                box-sizing: border-box;
            }

            .system-panel .system-content.active {
                display: block !important;
            }

            /* 移动端：产品中心横向滑动 */
            .product-panel-wrap {
                width: 100%;
                min-width: 0;
                padding: 0 20px;
            }

            .product-panel {
                width: 100%;
                min-width: 0;
                max-width: 100%;
                overflow-x: auto;
                overflow-y: hidden;
                -webkit-overflow-scrolling: touch;
                scroll-snap-type: x mandatory;
                scrollbar-width: none;
                display: flex !important;
                flex-wrap: nowrap;
            }

            .product-carousel-btn {
                display: inline-flex;
            }

            .product-pagination {
                display: flex;
            }

            .product-panel::-webkit-scrollbar {
                display: none;
            }

            .product-panel .product-content {
                flex: 0 0 100%;
                width: 100%;
                min-width: 100%;
                max-width: 100%;
                scroll-snap-align: start;
                display: block !important;
                box-sizing: border-box;
            }

            .product-panel .product-content.active {
                display: block !important;
            }

            /* 移动端：下面内容区展示整齐 */
            .systems-wrap .system-panel,
            .products-wrap .product-panel {
                flex: 1 1 auto;
                min-width: 0;
            }

            .system-card,
            .product-content .system-card {
                max-width: 100%;
                overflow: hidden;
            }

            .system-card {
                border-radius: 12px;
            }

            .system-header {
                padding: 24px 20px;
                gap: 16px;
            }

            .system-header h3 {
                font-size: 1.35rem;
            }

            .system-header p {
                font-size: 0.9rem;
            }

            .system-icon {
                width: 60px;
                height: 60px;
                font-size: 1.6rem;
            }

            .system-body {
                padding: 24px 20px;
                gap: 24px;
            }

            .system-features {
                gap: 16px;
            }

            .feature-item {
                align-items: flex-start;
                gap: 12px;
            }

            .feature-icon {
                width: 36px;
                height: 36px;
                font-size: 1rem;
            }

            .feature-content h4 {
                font-size: 0.95rem;
            }

            .feature-content p {
                font-size: 0.85rem;
            }

            .system-visual {
                padding: 24px 20px;
                border-radius: 12px;
            }

            .visual-icon {
                font-size: 3rem;
                margin-bottom: 16px;
            }

            .visual-label {
                font-size: 1rem;
                margin-bottom: 8px;
            }

            .visual-description {
                font-size: 0.85rem;
                max-width: 100%;
            }

            img,
            table,
            iframe,
            video {
                max-width: 100%;
                height: auto;
            }

            .case-studies {
                grid-template-columns: 1fr;
            }

            .case-panel-wrap {
                padding: 0 20px;
            }

            .case-panel {
                display: flex;
                grid-template-columns: none;
                gap: 0;
                overflow-x: auto;
                overflow-y: hidden;
                -webkit-overflow-scrolling: touch;
                scrollbar-width: none;
                scroll-snap-type: x mandatory;
            }

            .case-content {
                flex: 0 0 100%;
                width: 100%;
                min-width: 100%;
                max-width: 100%;
                scroll-snap-align: start;
            }

            .case-carousel-btn {
                display: inline-flex;
            }

            .case-pagination {
                display: flex;
            }

            .case-panel::-webkit-scrollbar {
                display: none;
            }

            .case-header h4 {
                font-size: 1.35rem;
            }

            .case-header p,
            .case-feature,
            .case-quote {
                font-size: 0.9rem;
            }

            .case-stats {
                grid-template-columns: 1fr;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 30px;
            }

            /* 页脚产品中心 11 项：小屏两列显示，节省高度 */
            .footer-column:nth-child(2) .footer-links {
                display: grid;
                grid-template-columns: 1fr 1fr;
                gap: 8px 16px;
            }

            .footer-links a {
                min-height: 44px;
                display: inline-flex;
                align-items: center;
            }

            footer {
                padding-bottom: max(40px, env(safe-area-inset-bottom));
            }

            .page-nav {
                bottom: max(15px, env(safe-area-inset-bottom));
                right: max(15px, env(safe-area-inset-right));
                padding: 5px;
            }

            .page-nav button {
                width: 38px;
                height: 38px;
                font-size: 0.85rem;
            }

            .section {
                padding: 80px 0;
            }

            /* 移动端固定头部安全区 */
            header {
                padding-left: max(20px, env(safe-area-inset-left));
                padding-right: max(20px, env(safe-area-inset-right));
            }

            header .nav-container {
                position: relative;
            }
        }

        @media (max-width: 480px) {
            .content{
                display: none;
            }
            .phoneContent{
display: block;
width: 100%;
height: 100%;
            }
            .tech-card-title{
                display: flex;
                align-items: center;
                gap: 10px;
                height: 40px;
            }
            .product-panel{
                background-color: #fff;
            }
            .system-card{
                 border:none;
                 background: transparent;
            }
             .feature-item {
                border: 1px solid #e5e5e5;
                border-radius: 8px;
                padding: 5px;
            }
            .feature-item h4{
                color:#283751;
            }
              .feature-item p{
                color:#88909d;
            }
            .dropdown-mega-left {
                display: none !important;
            }

            .dropdown-mega-inner {
                display: block;
                min-height: auto;
            }

            .dropdown-mega-right {
                width: 100%;
                max-width: 100%;
                padding: 0;
                overflow: visible;
            }

            .dropdown-mega-panel-tree {
                display: block;
                padding: 0;
            }

            .dropdown-mega-panel-tree .dropdown-mega-panel-title {
                display: none;
            }

            .dropdown-tree-root {
                display: flex;
                flex-direction: column;
                gap: 8px;
                padding: 0;
            }

            .dropdown-tree-branch {
                display: flex;
                flex-direction: column;
                gap: 4px;
                background: transparent;
                border: none;
                border-radius: 0;
                overflow: visible;
            }

            .dropdown-tree-branch-title {
                display: flex;
                align-items: center;
                justify-content: space-between;
                gap: 8px;
                width: 100%;
                margin: 0;
                padding: 4px 0;
                font-size: 0.98rem;
                font-weight: 700;
                color: #1f3f86;
                background: transparent;
                border: none;
                border-radius: 0;
                box-shadow: none;
                line-height: 1.45;
                text-align: left;
                cursor: pointer;
                position: relative;
                z-index: 2;
                touch-action: manipulation;
                -webkit-tap-highlight-color: transparent;
            }

            .dropdown-tree-branch-title-main {
                display: inline-flex;
                align-items: center;
                gap: 8px;
                min-width: 0;
            }

            .dropdown-tree-branch-title i {
                color: #1f3f86;
                width: 16px;
                text-align: center;
                flex-shrink: 0;
                font-size: 0.95rem;
            }

            .dropdown-tree-branch-caret {
                width: 8px;
                height: 8px;
                border-right: 1.5px solid #1f3f86;
                border-bottom: 1.5px solid #1f3f86;
                transform: rotate(45deg);
                transition: transform 0.2s ease;
                flex-shrink: 0;
                margin-right: 4px;
            }

            .dropdown-tree-branch:not(.is-expanded) .dropdown-tree-branch-caret {
                transform: rotate(-45deg);
                margin-top: 2px;
            }

            .dropdown-tree-children {
                display: none;
                flex-direction: column;
                gap: 2px;
                background: transparent;
                padding-left: 22px;
                position: relative;
            }

            .dropdown-tree-branch.is-expanded .dropdown-tree-children {
                display: flex;
            }

            .dropdown-tree-children::before {
                content: '';
                position: absolute;
                left: 7px;
                top: 2px;
                bottom: 6px;
                width: 1px;
                background: rgba(31, 63, 134, 0.18);
            }

            .dropdown-tree-leaf {
                position: relative;
                display: flex;
                align-items: flex-start;
                gap: 8px;
                padding: 6px 0;
                text-decoration: none;
                color: inherit;
                border: none;
                border-radius: 0;
                background: transparent;
                box-shadow: none;
                transition: none;
            }

            .dropdown-tree-leaf::before {
                content: '';
                position: absolute;
                left: -15px;
                top: 16px;
                width: 12px;
                height: 1px;
                background: rgba(31, 63, 134, 0.18);
            }

            .dropdown-tree-children .dropdown-tree-leaf:first-child {
                border-top: none;
            }

            .dropdown-tree-leaf:active,
            .dropdown-tree-leaf:hover {
                background: transparent;
                transform: none;
            }

            .dropdown-tree-leaf-icon {
                width: 14px;
                height: 14px;
                border-radius: 0;
                display: inline-flex;
                align-items: center;
                justify-content: center;
                background: transparent;
                color: #1f3f86;
                flex-shrink: 0;
                margin-top: 3px;
                font-size: 0.82rem;
            }

            .dropdown-tree-leaf-text {
                min-width: 0;
                display: flex;
                flex-direction: row;
                flex-wrap: wrap;
                gap: 0;
            }

            .dropdown-tree-leaf-title {
                font-size: 0.95rem;
                font-weight: 500;
                line-height: 1.55;
                color: var(--text-dark);
            }

            .dropdown-tree-leaf-desc {
                display: none;
            }

            .tech-advantages-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .cta p {
            color: rgba(255, 255, 255, 0.9);
            max-width: 700px;
            margin: 0 auto 2rem;
            font-size: 0.9rem;
        }
            .advantages-compact {
                padding: 40px 0 60px;
            }

            .advantages-compact .section-title h2 {
                font-size: 1.4rem;
            }

            /* 核心技术优势 - 紧凑两列布局，字体缩小版 */
            .advantages-compact {
                padding: 60px 0 80px;
            }

            .advantages-compact .section-title {
                margin-bottom: 40px;

            }

            .advantages-compact .section-title h2 {
                font-size: 1.4rem;
                margin-bottom: 8px;
            }

            .advantages-compact .section-title p {
                font-size: 0.9rem;
                color: #666;
                max-width: 600px;
                margin-left: auto;
                margin-right: auto;
            }

            .tech-advantages-grid {
                display: grid;
                grid-template-columns: repeat(2, 1fr);
                gap: 10px;
            }

            .tech-card-compact {
                display: flex;
                flex-direction: column;
                gap: 10px;
                background: #fff;
                border-radius: 12px;
                padding: 20px 18px;
                min-height: auto;
                box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
                border-top: none;
                text-align: left;
                transition: all 0.3s ease;
            }

            .tech-card-compact:hover {
                transform: translateY(-4px);
                box-shadow: 0 8px 20px rgba(10, 36, 99, 0.12);
            }

            .tech-card-compact .tech-icon {
                width: 30px !important;
                min-width: 30px !important;
                height: 30px;
                background: rgba(10, 36, 99, 0.08);
                border-radius: 50%;
                display: flex;
                align-items: center;
                justify-content: center;
                margin-bottom: 12px;
                margin:0;
            }

            .tech-card-compact .tech-icon i {
                font-size: 1.3rem;
                color: #0A2463;
            }

            .tech-card-compact h4 {
                font-size: 1rem;
                margin-bottom: 0px;
                font-weight: 700;
                color: #283751;
            }

            .tech-card-compact p {
                font-size: 0.8rem;
                line-height: 1.4;
                color: #88909d;
                margin-bottom: 0;
            }



            .visual-label {
                font-size: 0.90rem;
                margin-bottom: 6px;
            }

            .visual-description {
                font-size: 0.75rem;
                max-width: 100%;
            }

            .feature-content h4 {
                margin-bottom: 2px;

            }

            .system-body {
                padding: 10px 0;
                gap: 10px;

            }

            .system-features {
                gap: 10px;
            }

            .system-visual {
                padding: 10px;
                border-radius: 12px;
                 display: flex;
            flex-direction: column;
            justify-content: left;
            align-items: flex-start;
              background-color: #f5f9ff;
                border: 1px solid #e0e0e0;
            }
            .system-visual::before{
                background: transparent;
            }
 .system-visual i{
    display: none;
    
 }
            body {
                font-size: 14px;
            }

            p,
            .btn,
            .nav-menu .nav-link,
            .nav-menu .dropdown-toggle,
            .nav-menu .dropdown-mega-nav-item,
            .nav-menu .dropdown-mega-panel-desc,
            .nav-menu .dropdown-mega-card-text p,
            .footer-links a {
                font-size: 0.88rem;
            }

            h1 {
                font-size: 1.8rem;
            }

            h2,
            .advantages-compact .section-title h2,
            .cta h2 {
                font-size: 1.35rem;
            }

            h3 {
                font-size: 1.12rem;
            }

            h4,
            .feature-content h4,
            .tech-card-compact h4,
            .dropdown-tree-branch-title,
            .dropdown-tree-leaf-title {
                font-size: 0.9rem;
            }

            .hero p,
            .cta p,
            .advantages-compact .section-title p,
            .feature-content p,
            .visual-description,
            .tech-card-compact p {
                font-size: 0.82rem;
            }

            .system-nav-item,
            .product-nav-item {
                font-size: 0.82rem;
            }
            .product-nav-item.active {
                border-left: none;
                border-bottom-color: var(--primary-blue);
            }

            .visual-icon {
                font-size: 2rem;
                margin-bottom: 5px;
            }

            .feature-content p {
                font-size: 0.75rem;
                /* height: 30px; */
            }

            .system-header p {
                font-size: 0.75rem;
            }

            .system-header h3 {
                display: flex;
                flex-direction: column;
                justify-content: left;
                font-size: 1.05rem;
            }

            .section-title {
                margin-bottom: 40px;
            }

            .section-title h2 {
                word-break: break-word;
                font-size: 1.4rem;
            }

            .section-title p {
                word-break: break-word;
                font-size: 0.85rem;
            }

            .container {
                padding: 0 max(15px, env(safe-area-inset-left));
                padding-right: max(15px, env(safe-area-inset-right));
            }

            .section {
                padding: 20px 0;
            }

            .product-panel-wrap {
                padding: 12px;
                background-color: #fff;
                border-radius: 8px;
            }

            .product-carousel-btn {
                width: 36px;
                height: 36px;
                top: 44%;
            }

            .product-carousel-prev {
                left: 6px;
            }

            .product-carousel-next {
                right: 6px;
            }

            .product-pagination {
                gap: 6px;
                margin-top: 12px;
            }

            .product-pagination-dot {
                width: 7px;
                height: 7px;
            }

            .product-pagination-dot.active {
                width: 18px;
            }

            .case-panel-wrap {
                padding: 0 14px;
            }

            .case-carousel-btn {
                width: 36px;
                height: 36px;
                top: 44%;
            }

            .case-carousel-prev {
                left: 6px;
            }

            .case-carousel-next {
                right: 6px;
            }

            .case-pagination {
                gap: 6px;
                margin-top: 12px;
            }

            .case-pagination-dot {
                width: 7px;
                height: 7px;
            }

            .case-pagination-dot.active {
                width: 18px;
            }

            .nav-menu .dropdown.active .dropdown-menu.mega {
                max-height: 80vh;
            }

            .nav-menu .dropdown-mega-grid {
                grid-template-columns: 1fr;
            }

            .nav-menu .dropdown-mega-card-row {
                width: 100%;
            }

            .nav-menu .dropdown-mega-left {
                max-height: min(40vh, 280px);
            }
           .product-nav{
             display: flex;
             border-color: none;
             background-color: #f5f7fa;
            }
            .system-nav-item,
            .product-nav-item {
                flex:none;
                padding: 10px 12px;
                font-size: 0.9rem;
                display: block;
                width: auto;
            }
            .system-nav-item,
            .product-nav-item i{
               display: none;
            }

            .hero {
                padding: 80px 0 80px;
            }

            .hero h1 {
                font-size: 1.5rem;
                margin-bottom: 0.5rem;
            }

            .hero p {
                font-size: 0.85rem;
                margin-bottom: 1rem;

            }

            .hero-stats {
                gap: 25px;
                justify-content: space-between;
            }

            .hero-buttons {
                flex-direction: column;
                width: 100%;
                gap: 10px;
            }

            .hero-buttons .btn {
                width: 100%;
            }

            .system-header {
                /* flex-direction: column; */
                /* text-align: center; */
                padding: 20px 20px;
            }

            .system-icon {
                width: 50px;
                height: 50px;
            }

            h1 {
                font-size: 1rem;
            }

            h2 {
                font-size: 1.6rem;
            }

            .cta h2 {
                font-size: 1.4rem;
            }

            .cta-buttons {
                flex-direction: column;
            }

            .cta-buttons .btn {
                width: 100%;
            }
        }

        /* 辅助类 */
        .text-center {
            text-align: center;
        }

        .mb-10 {
            margin-bottom: 10px;
        }

        .mb-20 {
            margin-bottom: 20px;
        }

        .mt-10 {
            margin-top: 10px;
        }

        .mt-20 {
            margin-top: 20px;
        }

        .mt-40 {
            margin-top: 40px;
        }

        .flex {
            display: flex;
        }

        .justify-between {
            justify-content: space-between;
        }

        .align-center {
            align-items: center;
        }

        .gap-10 {
            gap: 10px;
        }

        .gap-20 {
            gap: 20px;
        }

        /* 动画类 */
        .fade-in {
            opacity: 0;
            transform: translateY(30px);
            transition: all 0.6s ease;
        }

        .fade-in.visible {
            opacity: 1;
            transform: translateY(0);
        }

        /* 无障碍支持 */
        .sr-only {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0, 0, 0, 0);
            white-space: nowrap;
            border-width: 0;
        }

        /* 焦点样式（导航栏除外，已单独去掉边框线） */
        a:focus,
        button:focus,
        input:focus,
        select:focus,
        textarea:focus {
            /* outline: 2px solid var(--accent-green); */
            outline-offset: 2px;
        }

        header .nav-menu a:focus,
        header .nav-menu button:focus {
            outline: none;
        }

        .img-box {
            width: 150px;
        }

        /* 免费咨询弹窗 */
        .consult-modal-overlay {
            position: fixed;
            inset: 0;
            background: rgba(10, 36, 99, 0.6);
            backdrop-filter: blur(6px);
            -webkit-backdrop-filter: blur(6px);
            z-index: 9998;
            display: none;
            align-items: center;
            justify-content: center;
            padding: 20px;
            opacity: 0;
            transition: opacity 0.3s ease;
        }

        .consult-modal-overlay.is-open {
            display: flex;
            opacity: 1;
        }

        .consult-modal {
            background: var(--neutral-white);
            border-radius: 12px;
            max-width: 600px;
            width: 100%;
            max-height: 90vh;
            display: flex;
            flex-direction: column;
            box-shadow: 0 20px 60px rgba(10, 36, 99, 0.25);
            position: relative;
            overflow: hidden;
        }

        .consult-modal-close {
            position: absolute;
            top: 16px;
            right: 16px;
            width: 36px;
            height: 36px;
            border: none;
            background: transparent;
            color: var(--text-light);
            font-size: 1.4rem;
            cursor: pointer;
            z-index: 2;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            transition: var(--transition);
        }

        .consult-modal-close:hover {
            background: var(--neutral-gray);
            color: var(--text-dark);
        }

        .consult-modal-scroll {
            overflow-y: auto;
            padding: 32px 28px 28px;
            -webkit-overflow-scrolling: touch;
        }

        .consult-modal-header {
            text-align: center;
            margin-bottom: 24px;
        }

        .consult-modal-header .consult-modal-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 48px;
            height: 48px;
            background: rgba(76, 175, 80, 0.15);
            color: var(--accent-green);
            border-radius: 50%;
            font-size: 1.5rem;
            margin-bottom: 12px;
        }

        .consult-modal-header h3 {
            font-size: 1.5rem;
            color: var(--primary-blue);
            margin-bottom: 8px;
        }

        .consult-modal-header p {
            font-size: 0.95rem;
            color: var(--text-light);
            margin: 0;
            line-height: 1.5;
        }

        .consult-form-section {
            border-bottom: 1px solid var(--border-color);
            padding-bottom: 20px;
            margin-bottom: 20px;
        }

        .consult-form-section:last-of-type {
            border-bottom: none;
            margin-bottom: 0;
            padding-bottom: 0;
        }

        .consult-form-section-title {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 14px;
        }

        .consult-form-section-title .section-icon {
            width: 28px;
            height: 28px;
            background: rgba(76, 175, 80, 0.15);
            color: var(--accent-green);
            border-radius: 6px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.9rem;
        }

        .consult-form-section-title span {
            font-size: 0.95rem;
            color: var(--text-dark);
            font-weight: 600;
        }

        .consult-form-section-desc {
            font-size: 0.85rem;
            color: var(--text-light);
            margin: -6px 0 12px 38px;
        }

        .consult-form-group {
            margin-bottom: 14px;
        }

        .consult-form-group:last-child {
            margin-bottom: 0;
        }

        .consult-form-group label {
            display: block;
            font-size: 0.9rem;
            color: var(--text-dark);
            margin-bottom: 6px;
        }

        .consult-form-group label .required {
            color: #d32f2f;
        }

        .consult-form-group input[type="text"],
        .consult-form-group input[type="email"],
        .consult-form-group input[type="tel"],
        .consult-form-group select,
        .consult-form-group textarea {
            width: 100%;
            padding: 10px 14px;
            border: 1px solid var(--border-color);
            border-radius: 6px;
            font-size: 0.95rem;
            font-family: inherit;
            background: var(--neutral-white);
            color: var(--text-dark);
            transition: border-color 0.2s;
        }

        .consult-form-group input::placeholder {
            color: #aaa;
        }

        .consult-form-group select {
            appearance: none;
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23666' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
            background-repeat: no-repeat;
            background-position: right 12px center;
            padding-right: 36px;
        }

        .consult-form-group input:focus,
        .consult-form-group select:focus,
        .consult-form-group textarea:focus {
            outline: none;
            border-color: var(--accent-green);
        }

        .consult-form-group textarea {
            resize: vertical;
            min-height: 80px;
        }

        .consult-form-checkbox {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            margin-top: 20px;
            margin-bottom: 20px;
        }

        .consult-form-checkbox input {
            width: 18px;
            height: 18px;
            margin-top: 2px;
            accent-color: var(--accent-green);
        }

        .consult-form-checkbox label {
            font-size: 0.9rem;
            color: var(--text-light);
            cursor: pointer;
            margin: 0;
        }

        .consult-modal .btn-submit-demo {
            width: 100%;
            padding: 14px 24px;
            background: var(--accent-green);
            color: var(--neutral-white);
            border: none;
            border-radius: 8px;
            font-family: 'Montserrat', sans-serif;
            font-weight: 600;
            font-size: 1rem;
            margin-top: 20px;
            cursor: pointer;
            transition: var(--transition);
        }

        .consult-modal .btn-submit-demo:hover {
            background: #43a047;
        }

        .consult-modal-privacy {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            margin-top: 14px;
            font-size: 0.85rem;
            color: var(--text-light);
        }

        .consult-modal-privacy i {
            color: var(--accent-green);
        }

        .logo-img {
            width: 100px;
        }