/* ========== 主容器 ========== */
        .main-container {
            max-width: 1260px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* ========== Hero 区域 ========== */
        .hero-section {
            min-height: 100vh;
            display: flex;
            align-items: center;
            position: relative;
            overflow: hidden;
            background: linear-gradient(135deg, #f8f9ff 0%, #fff 50%, #f5f0ff 100%);
            padding: 120px 0 80px;
        }

        /* 背景装饰元素 */
        .hero-bg-decoration {
            position: absolute;
            width: 100%;
            height: 100%;
            top: 0;
            left: 0;
            pointer-events: none;
            z-index: 0;
        }

        .bg-shape {
            position: absolute;
            border-radius: 50%;
            filter: blur(80px);
            opacity: 0.3;
            animation: float 8s ease-in-out infinite;
        }

        .bg-shape-1 {
            width: 500px;
            height: 500px;
            background: linear-gradient(135deg, #898EFF, #5E7DF9);
            top: -100px;
            right: -100px;
            animation-delay: 0s;
        }

        .bg-shape-2 {
            width: 400px;
            height: 400px;
            background: linear-gradient(135deg, #a78bfa, #c084fc);
            bottom: -150px;
            left: -150px;
            animation-delay: 2s;
        }

        .bg-shape-3 {
            width: 300px;
            height: 300px;
            background: linear-gradient(135deg, #60a5fa, #3b82f6);
            top: 50%;
            left: 30%;
            animation-delay: 4s;
        }

        @keyframes float {
            0%, 100% {
                transform: translate(0, 0) scale(1);
            }
            33% {
                transform: translate(30px, -30px) scale(1.05);
            }
            66% {
                transform: translate(-20px, 20px) scale(0.95);
            }
        }

        .hero-content-wrapper {
            display: flex;
            align-items: center;
            gap: 80px;
            position: relative;
            z-index: 1;
        }

        .hero-text {
            flex: 1;
            opacity: 0;
            transform: translateY(40px);
            animation: fadeInUp 1s ease-out forwards;
        }

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

        .hero-title {
            font-size: 56px;
            font-weight: 600;
            color: #233863;
            line-height: 1.2;
            margin-bottom: 24px;
        }

        .hero-title .highlight {
            background: linear-gradient(135deg, #898EFF, #5E7DF9);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero-subtitle {
            font-size: 24px;
            color: #6D7B96;
            line-height: 1.6;
            margin-bottom: 40px;
            font-weight: 400;
        }

        .hero-cta-group {
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
        }

        .cta-btn {
            height: 52px;
            padding: 0 32px;
            font-size: 16px;
            border: none;
            border-radius: 8px;
            cursor: pointer;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            transition: all 0.3s ease;
            text-decoration: none;
            font-weight: 500;
        }

        .cta-btn-primary {
            background: linear-gradient(135deg, #898EFF, #5E7DF9);
            color: #ffffff;
            box-shadow: 0 4px 20px rgba(94, 125, 249, 0.3);
        }

        .cta-btn-primary:hover {
            transform: translateY(-4px);
            box-shadow: 0 8px 30px rgba(94, 125, 249, 0.4);
        }

        .cta-btn-secondary {
            background: #ffffff;
            color: #5E7DF9;
            border: 2px solid #898EFF;
        }

        .cta-btn-secondary:hover {
            background: #f8f9ff;
            transform: translateY(-4px);
            box-shadow: 0 8px 20px rgba(137, 142, 255, 0.2);
        }

        /* Hero 视觉区域 */
        .hero-visual {
            flex: 1;
            position: relative;
            min-height: 600px;
            opacity: 0;
            transform: translateY(40px);
            animation: fadeInUp 1s ease-out 0.4s forwards;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .visual-card-group {
            position: relative;
            width: 100%;
            max-width: 600px;
            height: 430px;
            display: flex;
            gap: 20px;
        }

        /* 左侧机器人图片卡片 */
        .robot-card {
            flex: 1;
            background: linear-gradient(135deg, #898EFF, #5E7DF9);
            border-radius: 32px;
            position: relative;
            overflow: visible;
            box-shadow: 0 20px 60px rgba(94, 125, 249, 0.3);
            display: flex;
            align-items: center;
            justify-content: center;
            transition: all 0.4s ease;
        }

        .robot-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 30px 80px rgba(94, 125, 249, 0.4);
        }

        .robot-placeholder {
            width: 100%;
            height: 100%;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            color: #ffffff;
            font-size: 18px;
            font-weight: 600;
            position: relative;
        }

        .robot-placeholder img {
            width: 260px;
            height: auto;
            object-fit: contain;
            position: absolute;
            bottom: -40px;
            right: 72px;
            z-index: 2;
        }

        /* 机器人对话框 */
        .robot-speech {
            position: absolute;
            top: 40px;
            right: 30px;
            background: rgba(35, 56, 99, 0.95);
            color: #ffffff;
            padding: 12px 20px;
            border-radius: 20px;
            font-size: 14px;
            font-weight: 500;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
            animation: speechFloat 3s ease-in-out infinite;
        }

        .robot-speech::before {
            content: '👋';
            margin-right: 8px;
        }

        @keyframes speechFloat {
            0%, 100% { transform: translateY(0); }
            50% { transform: translateY(-10px); }
        }

        /* 右侧信息卡片组 */
        .info-cards {
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .visual-card {
            background: rgba(255, 255, 255, 0.98);
            border-radius: 24px;
            padding: 28px;
            box-shadow: 0 8px 32px rgba(94, 125, 249, 0.12);
            backdrop-filter: blur(10px);
            border: 1px solid rgba(255, 255, 255, 0.8);
            transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
            flex: 1;
            position: relative;
        }

        /* 第二张卡片高度调整 */
        .visual-card:nth-child(2) {
            animation: cardFloat2 5s ease-in-out infinite 0.5s;
            background: linear-gradient(135deg, #76ACFE, #5E9EFF);
            color: #ffffff;
            max-height: 280px;
            padding-bottom: 90px;
        }

        .visual-card:hover {
            transform: translateY(-8px) scale(1.02);
            box-shadow: 0 20px 48px rgba(94, 125, 249, 0.2);
        }

        /* 移除旧的定位样式 */
        .card-1, .card-2, .card-3 {
            position: relative;
            top: auto;
            left: auto;
            right: auto;
            bottom: auto;
            width: 100%;
            transform: none;
            animation: none;
        }

        .visual-card:nth-child(1) {
            animation: cardFloat1 4s ease-in-out infinite;
        }

        .visual-card:nth-child(2) {
            animation: cardFloat2 5s ease-in-out infinite 0.5s;
            background: linear-gradient(135deg, #76ACFE, #5E9EFF);
            color: #ffffff;
        }

        .visual-card:nth-child(2) .card-title,
        .visual-card:nth-child(2) .card-desc,
        .visual-card:nth-child(2) .data-label {
            color: #ffffff;
        }

        .visual-card:nth-child(2) .data-number {
            background: #ffffff;
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .visual-card:nth-child(2) .card-icon {
            background: rgba(255, 255, 255, 0.2);
        }

        .visual-card:nth-child(2) .bar-item {
            background: linear-gradient(180deg, #ffffff, rgba(255, 255, 255, 0.8));
            opacity: 0.5;
        }

        @keyframes cardFloat1 {
            0%, 100% { transform: translateY(0); }
            50% { transform: translateY(-8px); }
        }

        @keyframes cardFloat2 {
            0%, 100% { transform: translateY(0); }
            50% { transform: translateY(-10px); }
        }

        .card-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 16px;
            font-size: 24px;
            color: #ffffff;
        }

        .card-icon-purple {
            background: linear-gradient(135deg, #a78bfa, #c084fc);
        }

        .card-icon-blue {
            background: linear-gradient(135deg, #898EFF, #5E7DF9);
        }

        .card-title {
            font-size: 18px;
            font-weight: 600;
            color: #233863;
            margin-bottom: 8px;
        }

        .card-desc {
            font-size: 14px;
            color: #6D7B96;
            line-height: 1.5;
        }

        .card-data {
            display: flex;
            align-items: baseline;
            margin-top: 16px;
        }

        .data-number {
            font-size: 32px;
            font-weight: 700;
            background: linear-gradient(135deg, #898EFF, #5E7DF9);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            margin-right: 8px;
        }

        .data-label {
            font-size: 14px;
            color: #6D7B96;
        }

        /* 图表样式 */
        .chart-container {
            margin-top: 20px;
            position: relative;
        }

        /* 第一张卡片的图表容器 - 右上角定位 */
        .visual-card:nth-child(1) .chart-container {
            position: absolute;
            top: 28px;
            right: 28px;
            margin-top: 0;
        }

        /* 第二张卡片的图表容器 - 底部对齐 */
        .visual-card:nth-child(2) .chart-container {
            position: absolute;
            bottom: 0;
            left: 28px;
            right: 28px;
            margin-top: 0;
        }

        /* 环形图 */
        .donut-chart {
            width: 80px;
            height: 80px;
            border-radius: 50%;
            background: conic-gradient(
                #898EFF 0deg 252deg,
                #e5e7eb 252deg 360deg
            );
            position: relative;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .donut-chart::before {
            content: '';
            width: 50px;
            height: 50px;
            background: white;
            border-radius: 50%;
            position: absolute;
        }

        .donut-chart-label {
            position: absolute;
            font-size: 16px;
            font-weight: 700;
            color: #5E7DF9;
            z-index: 1;
        }

        /* 柱状图 */
        .bar-chart {
            display: flex;
            align-items: flex-end;
            gap: 8px;
            height: 60px;
        }

        .bar-item {
            flex: 1;
            background: linear-gradient(180deg, #898EFF, #5E7DF9);
            border-radius: 4px 4px 0 0;
            position: relative;
            min-width: 20px;
            animation: barGrow 1s ease-out forwards;
            transform-origin: bottom;
        }

        @keyframes barGrow {
            from {
                transform: scaleY(0);
            }
            to {
                transform: scaleY(1);
            }
        }

        .bar-item:nth-child(1) { height: 70%; animation-delay: 0.2s; }
        .bar-item:nth-child(2) { height: 85%; animation-delay: 0.3s; }
        .bar-item:nth-child(3) { height: 95%; animation-delay: 0.4s; }
        .bar-item:nth-child(4) { height: 100%; animation-delay: 0.5s; }
        .bar-item:nth-child(5) { height: 75%; animation-delay: 0.6s; }

        /* 雷达图 */
        .radar-chart {
            width: 100px;
            height: 100px;
            position: relative;
            margin: 0 auto;
        }

        .radar-chart svg {
            width: 100%;
            height: 100%;
        }

        .radar-bg {
            fill: none;
            stroke: #e5e7eb;
            stroke-width: 1;
        }

        .radar-area {
            fill: rgba(137, 142, 255, 0.3);
            stroke: #5E7DF9;
            stroke-width: 2;
        }

        .radar-point {
            fill: #5E7DF9;
        }

        /* 趋势线图 */
        .trend-line {
            width: 100%;
            height: 50px;
            position: relative;
        }

        .trend-line svg {
            width: 100%;
            height: 100%;
        }

        .trend-path {
            fill: none;
            stroke: url(#trendGradient);
            stroke-width: 3;
            stroke-linecap: round;
            stroke-linejoin: round;
        }

        .trend-area {
            fill: url(#areaGradient);
        }

        /* 装饰性几何元素 - 移除或简化 */
        .deco-element {
            display: none;
        }

        /* ========== AI销售全景图区域 ========== */
        .panorama-section {
            padding: 100px 0;
            background: #ffffff;
        }

        .panorama-section .section-title {
            font-size: 40px;
            font-weight: 600;
            color: #233863;
            text-align: center;
            margin-bottom: 16px;
        }

        .panorama-section .section-subtitle {
            font-size: 24px;
            font-weight: 400;
            color: #6D7B96;
            text-align: center;
            margin-bottom: 80px;
        }

        /* 功能展示项 */
        .features-showcase-container {
            display: flex;
            flex-direction: column;
            gap: 80px;
        }

        .feature-showcase {
            margin-bottom: 0;
        }

        .feature-content {
            display: flex;
            align-items: center;
            gap: 80px;
        }

        /* 左右交替布局 */
        .feature-showcase:nth-child(even) .feature-content {
            flex-direction: row-reverse;
        }

        .feature-image {
            flex: 1;
            max-width: 580px;
        }

        .feature-image-wrapper {
            width: 100%;
            aspect-ratio: 1.2;
            padding: 48px;
            border-radius: 24px;
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
        }

        /* 统一配色方案 - 柔和渐变 */
        .feature-showcase:nth-child(1) .feature-image-wrapper {
            background: linear-gradient(135deg, #F0F4FF 0%, #E5EDFF 100%);
        }

        .feature-showcase:nth-child(2) .feature-image-wrapper {
            background: linear-gradient(135deg, #F0F9FF 0%, #E0F2FE 100%);
        }

        .feature-showcase:nth-child(3) .feature-image-wrapper {
            background: linear-gradient(135deg, #FFF4ED 0%, #FFE9D9 100%);
        }

        .feature-showcase:nth-child(4) .feature-image-wrapper {
            background: linear-gradient(135deg, #F0FDF4 0%, #DCFCE7 100%);
        }

        .feature-showcase:nth-child(5) .feature-image-wrapper {
            background: linear-gradient(135deg, #FEF5FF 0%, #FAE8FF 100%);
        }

        .feature-image-wrapper svg {
            width: 100%;
            height: 100%;
            border-radius: 12px;
            filter: drop-shadow(0 8px 24px rgba(0, 0, 0, 0.08));
        }

        .feature-text {
            flex: 1;
            max-width: 520px;
        }

        .feature-label {
            display: inline-block;
            padding: 6px 16px;
            background: rgba(137, 142, 255, 0.1);
            border-radius: 20px;
            font-size: 14px;
            color: #5E7DF9;
            font-weight: 600;
            margin-bottom: 16px;
        }

        .feature-title {
            font-size: 36px;
            font-weight: 600;
            color: #233863;
            margin-bottom: 16px;
            line-height: 1.3;
        }

        .feature-desc {
            font-size: 16px;
            color: #6D7B96;
            line-height: 1.8;
            margin-bottom: 28px;
        }

        .feature-highlights {
            display: flex;
            flex-direction: column;
            gap: 12px;
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .feature-highlights li {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 15px;
            color: #4A4A4A;
            line-height: 1.6;
        }

        .feature-highlights li svg {
            flex-shrink: 0;
        }

        /* AI销售产品生态 */        /* ========== 产品生态区域 ========== */
        .ecosystem-section {
            padding: 80px 0;
            background: #F5F7FA;
            position: relative;
            overflow: hidden;
        }

        .ecosystem-section .section-title {
            font-size: 40px;
            font-weight: 600;
            color: #233863;
            text-align: center;
            margin-bottom: 16px;
        }

        .ecosystem-section .section-subtitle {
            font-size: 24px;
            font-weight: 400;
            color: #6D7B96;
            text-align: center;
            margin-bottom: 60px;
        }

        /* 中心辐射布局容器 */
        .ecosystem-radial-layout {
            position: relative;
            max-width: 1200px;
            margin: 40px auto 0;
            height: 650px;
        }

        /* 中心圆形图标 */
        .ecosystem-center {
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 160px;
            height: 160px;
            background: linear-gradient(135deg, #898EFF, #5E7DF9);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 20px 60px rgba(94, 125, 249, 0.4);
            z-index: 2;
        }

        /* 外围三个半透明圆 */
        .ecosystem-center::before,
        .ecosystem-center::after {
            content: '';
            position: absolute;
            border-radius: 50%;
            border: 3px solid rgba(137, 142, 255, 0.4);
        }

        .ecosystem-center::before {
            width: 240px;
            height: 240px;
            animation: ripple1 2.5s ease-in-out infinite;
        }

        .ecosystem-center::after {
            width: 320px;
            height: 320px;
            animation: ripple2 2.5s ease-in-out infinite 0.8s;
        }

        .ecosystem-ring {
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 480px;
            height: 480px;
            border-radius: 50%;
            border: 3px solid rgba(137, 142, 255, 0.3);
            animation: ripple3 2.5s ease-in-out infinite 1.6s;
            z-index: 1;
        }

        @keyframes ripple1 {
            0%, 100% { transform: scale(1); opacity: 0.6; }
            50% { transform: scale(1.15); opacity: 0.3; }
        }

        @keyframes ripple2 {
            0%, 100% { transform: scale(1); opacity: 0.5; }
            50% { transform: scale(1.15); opacity: 0.2; }
        }

        @keyframes ripple3 {
            0%, 100% { transform: translate(-50%, -50%) scale(1); opacity: 0.4; }
            50% { transform: translate(-50%, -50%) scale(1.15); opacity: 0.15; }
        }

        .ecosystem-center-icon {
            width: 80px;
            height: 80px;
            position: relative;
            z-index: 1;
        }

        .ecosystem-center-icon svg {
            width: 100%;
            height: 100%;
        }

        /* 连接线 */
        .connection-line {
            position: absolute;
            top: 50%;
            left: 50%;
            width: 2px;
            height: 200px;
            background: linear-gradient(180deg, rgba(102, 126, 234, 0.3), transparent);
            transform-origin: top center;
        }

        .connection-line.line-top-left {
            transform: translate(-50%, -100%) rotate(-135deg);
        }

        .connection-line.line-top-right {
            transform: translate(-50%, -100%) rotate(-45deg);
        }

        .connection-line.line-bottom-left {
            transform: translate(-50%, 0) rotate(135deg);
        }

        .connection-line.line-bottom-right {
            transform: translate(-50%, 0) rotate(45deg);
        }

        /* 场景卡片 */
        .scenario-card {
            position: absolute;
            width: 420px;
            background: #ffffff;
            border-radius: 20px;
            padding: 32px;
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
            transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
            z-index: 10;
        }

        .scenario-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 16px 48px rgba(102, 126, 234, 0.2);
        }

        /* 卡片位置 */
        .scenario-card.card-top-left {
            top: 0;
            left: 0;
        }

        .scenario-card.card-top-right {
            top: 0;
            right: 0;
        }

        .scenario-card.card-bottom-left {
            bottom: 0;
            left: 0;
        }

        .scenario-card.card-bottom-right {
            bottom: 0;
            right: 0;
        }

        /* 卡片顶部装饰图 */
        .card-visual {
            width: 100%;
            height: 140px;
            border-radius: 12px;
            margin-bottom: 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
            overflow: hidden;
        }

        .card-visual.visual-cyan {
            background: linear-gradient(135deg, #84fab0 0%, #8fd3f4 100%);
        }

        .card-visual.visual-blue {
            background: linear-gradient(135deg, #a1c4fd 0%, #c2e9fb 100%);
        }

        .card-visual.visual-purple {
            background: linear-gradient(135deg, #d299c2 0%, #fef9d7 100%);
        }

        .card-visual.visual-pink {
            background: linear-gradient(135deg, #ffecd2 0%, #fcb69f 100%);
        }

        /* 卡片标题 */
        .card-question {
            font-size: 20px;
            font-weight: 600;
            color: #233863;
            margin-bottom: 12px;
            line-height: 1.4;
        }

        .card-answer {
            font-size: 14px;
            color: #6D7B96;
            line-height: 1.7;
            margin: 0;
        }
        .icon-cyan { background: linear-gradient(135deg, #60a5fa, #3b82f6); }
        .icon-pink { background: linear-gradient(135deg, #f472b6, #ec4899); }

        .product-name {
            font-size: 24px;
            font-weight: 600;
            color: #233863;
            margin-bottom: 12px;
        }

        .product-desc {
            font-size: 14px;
            color: #6D7B96;
            line-height: 1.6;
        }

        /* ========== 留资卡片区域 ========== */
        .cta-section {
            padding: 0;
            background: transparent;
            position: relative;
            overflow: visible;
        }

        .contact_us {
            padding: 80px 0;
            position: relative;
        }

        .contact_conter {
            text-align: center;
            position: relative;
            z-index: 1;
        }

        .contact_conter .txt1 {
            font-size: 40px;
            font-weight: 600;
            color: #ffffff;
            margin-bottom: 16px;
        }

        .contact_conter .txt2 {
            font-size: 20px;
            color: rgba(255, 255, 255, 0.85);
            margin-bottom: 40px;
            line-height: 1.6;
        }

        .contact_conter .freeBtn {
            display: inline-block;
            background: #ffffff;
            color: #229AF4;
            height: 52px;
            line-height: 52px;
            padding: 0 40px;
            font-size: 16px;
            border: none;
            border-radius: 8px;
            cursor: pointer;
            font-weight: 600;
            transition: all 0.3s ease;
            text-decoration: none;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
        }

        .contact_conter .freeBtn:hover {
            transform: translateY(-4px);
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.2);
        }

        /* ========== 滚动动画触发 ========== */
        .fade-in-element {
            opacity: 0;
            transform: translateY(40px);
            transition: all 0.8s ease-out;
        }

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

        /* ========== 响应式设计 ========== */
        @media (max-width: 768px) {
            .hero-content-wrapper {
                flex-direction: column;
                gap: 40px;
            }

            .hero-title {
                font-size: 36px;
            }

            .hero-subtitle {
                font-size: 18px;
            }

            .hero-visual {
                min-height: 400px;
            }

            .section-title {
                font-size: 32px;
            }

            .section-subtitle {
                font-size: 18px;
            }

            .accordion-header {
                padding: 24px 20px;
            }

            .accordion-number {
                font-size: 32px;
                min-width: 40px;
            }

            .accordion-header-text h3 {
                font-size: 20px;
            }

            .scenario-desc,
            .related-products {
                padding-left: 20px;
            }

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

            .cta-title {
                font-size: 28px;
            }
        }

         /* ========== 产品矩阵罗列区域 ========== */
        .product-matrix-section {
            padding: 100px 0;
            background: linear-gradient(180deg, #F8FAFC 0%, #FFFFFF 50%, #F8FAFC 100%);
            position: relative;
        }

        .product-matrix-section::before {
            content: '';
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 800px;
            height: 800px;
            background: radial-gradient(circle, rgba(94, 125, 249, 0.05) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .product-matrix-section .section-title {
            font-size: 40px;
            font-weight: 600;
            color: #233863;
            text-align: center;
            margin-bottom: 16px;
        }

        .product-matrix-section .section-subtitle {
            font-size: 24px;
            font-weight: 400;
            color: #6D7B96;
            text-align: center;
            margin-bottom: 48px;
        }

        /* Tab标签样式 */
        .category-tabs {
            display: flex;
            justify-content: center;
            gap: 16px;
            margin-bottom: 48px;
            flex-wrap: wrap;
        }

        .category-tab {
            padding: 14px 32px;
            background: white;
            border: 2px solid #E5E7EB;
            border-radius: 50px;
            font-size: 16px;
            font-weight: 600;
            color: #6D7B96;
            cursor: pointer;
            transition: all 0.3s ease;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .category-tab span {
            font-size: 20px;
        }

        .category-tab:hover {
            border-color: #5E7DF9;
            color: #5E7DF9;
            transform: translateY(-2px);
        }

        .category-tab.active {
            background: linear-gradient(135deg, #898EFF, #5E7DF9);
            border-color: transparent;
            color: white;
            box-shadow: 0 4px 16px rgba(94, 125, 249, 0.3);
        }

        /* Tab内容容器 */
        .category-wrapper {
            position: relative;
        }

        .category-block {
            display: none;
            animation: fadeInUp 0.5s ease-out;
        }

        .category-block.active {
            display: block;
        }

        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(20px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        /* 固定4列网格 */
        .product-grid-fixed {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        /* 彩色渐变产品卡片 */
        .product-card {
            display: flex;
            flex-direction: column;
            padding: 32px 24px;
            border-radius: 20px;
            text-decoration: none;
            color: inherit;
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            position: relative;
            overflow: hidden;
            cursor: pointer;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
            min-height: 360px;
        }

        /* 蓝色卡片 */
        .product-card.card-blue {
            background: linear-gradient(135deg, #D4E4FF 0%, #C4D7FF 100%);
        }

        .product-card.card-blue:hover {
            transform: translateY(-8px);
            box-shadow: 0 16px 48px rgba(212, 228, 255, 0.5);
        }

        .product-card.card-blue .product-icon svg {
            stroke: #229AF4;
        }

        /* 绿色卡片 */
        .product-card.card-green {
            background: linear-gradient(135deg, #D8F5E3 0%, #C0EDD5 100%);
        }

        .product-card.card-green:hover {
            transform: translateY(-8px);
            box-shadow: 0 16px 48px rgba(216, 245, 227, 0.5);
        }

        .product-card.card-green .product-icon svg {
            stroke: #28CA41;
        }

        /* 紫色卡片 */
        .product-card.card-purple {
            background: linear-gradient(135deg, #E8DFFF 0%, #DDD0FF 100%);
        }

        .product-card.card-purple:hover {
            transform: translateY(-8px);
            box-shadow: 0 16px 48px rgba(232, 223, 255, 0.5);
        }

        .product-card.card-purple .product-icon svg {
            stroke: #7B61FF;
        }

        /* 粉色卡片 */
        .product-card.card-pink {
            background: linear-gradient(135deg, #FFE8F0 0%, #FFD4E5 100%);
        }

        .product-card.card-pink:hover {
            transform: translateY(-8px);
            box-shadow: 0 16px 48px rgba(255, 232, 240, 0.5);
        }

        .product-card.card-pink .product-icon svg {
            stroke: #FF6BA6;
        }

        /* 青色卡片 */
        .product-card.card-cyan {
            background: linear-gradient(135deg, #D0F5F3 0%, #B8EEE8 100%);
        }

        .product-card.card-cyan:hover {
            transform: translateY(-8px);
            box-shadow: 0 16px 48px rgba(208, 245, 243, 0.5);
        }

        .product-card.card-cyan .product-icon svg {
            stroke: #00B8A9;
        }

        .product-card .product-icon {
            width: 40px;
            height: 40px;
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: white;
            border-radius: 10px;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
        }

        .product-card .product-icon svg {
            width: 24px;
            height: 24px;
            stroke-width: 2;
        }

        .product-name {
            font-size: 22px;
            font-weight: 700;
            color: #1a1a1a;
            margin-bottom: 16px;
            line-height: 1.3;
        }

        /* Mockup预览区域 */
        .product-preview {
            margin-top: auto;
            margin-bottom: 16px;
            padding: 0;
            height: 120px;
            background: rgba(255, 255, 255, 0.95);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
            overflow: hidden;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
        }

        .product-preview svg {
            width: 100%;
            height: 100%;
        }

        /* 查看按钮 */
        .product-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 100%;
            padding: 12px 24px;
            background: white;
            color: #5E7DF9;
            font-size: 14px;
            font-weight: 600;
            border-radius: 8px;
            text-decoration: none;
            transition: all 0.3s ease;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
        }

        .product-btn:hover {
            background: #5E7DF9;
            color: white;
            transform: translateX(4px);
            box-shadow: 0 4px 12px rgba(94, 125, 249, 0.3);
        }

        /* 空占位卡片 */
        .product-card-placeholder {
            min-height: 360px;
            visibility: hidden;
        }

        /* 响应式 */
        @media (max-width: 1024px) {
            .product-grid-fixed {
                grid-template-columns: repeat(2, 1fr);
            }

            .product-card-placeholder {
                display: none;
            }
        }

        @media (max-width: 768px) {
            .product-matrix-section {
                padding: 60px 0;
            }

            .product-matrix-section .section-title {
                font-size: 32px;
            }

            .product-matrix-section .section-subtitle {
                font-size: 18px;
            }

            .category-tabs {
                flex-direction: column;
                gap: 12px;
                padding: 0 20px;
            }

            .category-tab {
                width: 100%;
                justify-content: center;
            }

            .product-grid-fixed {
                grid-template-columns: 1fr;
                gap: 16px;
            }

            .product-card {
                min-height: 320px;
                padding: 24px 20px;
            }

            .product-name {
                font-size: 20px;
            }
        }

        /* ========== 留资卡片区域 ========== */
        .cta-section {
            padding: 0;
            background: transparent;
            position: relative;
            overflow: visible;
        }

        .contact_us {
            position: relative;
        }

        .contact_conter {
            text-align: center;
            position: relative;
            z-index: 1;
        }

        .contact_conter .txt1 {
            font-size: 40px;
            font-weight: 600;
            color: #ffffff;
            margin-bottom: 16px;
        }

        .contact_conter .txt2 {
            font-size: 20px;
            color: rgba(255, 255, 255, 0.85);
            margin-bottom: 40px;
            line-height: 1.6;
        }

        .contact_conter .freeBtn {
            display: inline-block;
            background: #ffffff;
            color: #229AF4;
            height: 52px;
            line-height: 52px;
            padding: 0 40px;
            font-size: 16px;
            border: none;
            border-radius: 8px;
            cursor: pointer;
            font-weight: 600;
            transition: all 0.3s ease;
            text-decoration: none;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
        }

        .contact_conter .freeBtn:hover {
            transform: translateY(-4px);
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.2);
        }

        /* ========== 滚动动画触发 ========== */
        .fade-in-element {
            opacity: 0;
            transform: translateY(40px);
            transition: all 0.8s ease-out;
        }

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

        /* ========== 响应式设计 ========== */
        @media (max-width: 768px) {
            .hero-content-wrapper {
                flex-direction: column;
                gap: 40px;
            }

            .hero-title {
                font-size: 36px;
            }

            .hero-subtitle {
                font-size: 18px;
            }

            .hero-visual {
                min-height: 400px;
            }

            .section-title {
                font-size: 32px;
            }

            .section-subtitle {
                font-size: 18px;
            }

            .accordion-header {
                padding: 24px 20px;
            }

            .accordion-number {
                font-size: 32px;
                min-width: 40px;
            }

            .accordion-header-text h3 {
                font-size: 20px;
            }

            .scenario-desc,
            .related-products {
                padding-left: 20px;
            }

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

            .cta-title {
                font-size: 28px;
            }
        }