* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: "Microsoft YaHei", sans-serif;
        }
        body {
            color: #333;
            background: #f7f8fa;
        }
        a {
            text-decoration: none;
            color: #0066cc;
        }
        a:hover {
            color: #004999;
        }
        .container {
            width: 100%;
            max-width: 1400px;
            margin: 0 auto;
            padding: 0 20px;
        }
        /* 头部导航 */
        .header {
            width: 100%;
            background: #fff;
            box-shadow: 0 2px 8px rgba(0,0,0,0.08);
            position: fixed;
            top: 0;
            left: 0;
            z-index: 999;
        }
        .header .nav {
            display: flex;
            justify-content: space-between;
            align-items: center;
            height: 70px;
        }
        .nav .logo {
            display: flex;
            align-items: center;
        }
        .nav .logo img {
            height: 40px;
            margin-right: 10px;
        }
        .nav .logo h1 {
            font-size: 20px;
            color: #0066cc;
            font-weight: 700;
        }
        .nav .company-link {
            font-size: 14px;
            padding: 8px 16px;
            background: #0066cc;
            color: #fff !important;
            border-radius: 4px;
        }
        .nav .company-link:hover {
            background: #004999;
        }
        /* 首屏banner */
        .banner {
            width: 100%;
            height: 600px;
            background: linear-gradient(135deg, #1010ff 0%, #0099ff 100%);
            color: #fff;
            margin-top: 70px;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            padding: 40px 0;
        }
        .banner .banner-content h2 {
            font-size: 62px;
            margin-bottom: 20px;
            line-height: 1.2;
            font-weight: bold;
        }
        .banner .banner-highlight {
            color: #f7f101;
        }

        .banner .banner-tags {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 12px;
            max-width: 900px;
            margin: 20px auto 40px;
        }
        .banner .banner-tag {
            display: inline-flex;
            align-items: center;
            padding: 8px 16px;
            border-radius: 999px;
            border: 1px solid rgba(255,255,255,0.45);
            background: rgba(255,255,255,0.15);
            color: #fff;
            font-size: 16px;
            line-height: 1;
            backdrop-filter: blur(2px);
        }
        .banner .banner-desc {
            margin-top: 18px;
            font-size: 16px;
            line-height: 1.8;
            color: rgba(255,255,255,0.9);
        }
        .banner .btn {

            display: inline-block;
            background-color: rgb(255, 255, 255);
            color: rgb(50, 33, 248);
            box-shadow: rgba(39, 78, 188, 0.2) 0px 10px 30px;
            font-size: 26px;
            font-weight: bold;
            padding: 12px 48px;
            border-radius: 40px;
            margin: 20px 5px;
            transition: 0.3s;
        }
        .banner .btn-secondary {
            background: rgba(255,255,255,0.2);
            color: #fff !important;
        }
        .banner .btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 16px rgba(0,0,0,0.1);
        }
        /* 品牌展示版块 */
        .brand {
            padding: 50px 0 30px 0;
            background: #fff;
            overflow: hidden;
        }
        .brand .section-title {
            text-align: center;
            margin-bottom: 40px;
        }
        .brand .section-title h3 {
            font-size: 24px;
            margin-bottom: 10px;
			font-weight:normal;
            color: #333;
        }
        .brand-scroll {
            width: 100%;
            overflow: hidden;
            position: relative;
            height: 60px;
            display: flex;
            align-items: center;
        }
        .brand-list {
            display: flex;
            animation: scroll 20s linear infinite;
            width: max-content;
        }
        .brand-list:hover {
            animation-play-state: paused;
        }
        .brand-item {
            flex: 0 0 auto;
            width: 1400px;
            display: flex;
            justify-content: center;
            align-items: center;
            padding: 0 20px;
        }
        .brand-item img {
            height: auto;
            object-fit: contain;
        }
        @keyframes scroll {
            0% {
                transform: translateX(0);
            }
            100% {
                transform: translateX(-800px);
            }
        }
        /* 新增：用户案例版块 */
        .case {
            padding: 100px 0;
            background: #f7f8fa;
        }
        .case .section-title {
            text-align: center;
            margin-bottom: 60px;
        }
        .case .section-title h3 {
            font-size: 36px;
            margin-bottom: 15px;
            color: #333;
        }
        .case .section-title p {
            font-size: 16px;
            color: #666;
            max-width: 700px;
            margin: 0 auto;
        }
        .case-list {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 30px;
        }
        .case-item {
            background: #fff;
            border-radius: 8px;
            overflow: hidden;
            box-shadow: 0 2px 10px rgba(0,0,0,0.05);
            transition: all 0.3s;
        }
        .case-item:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 20px rgba(0,0,0,0.08);
        }
        .case-img-box {
            position: relative;
            width: 100%;
            height: 293px;
            overflow: hidden;
        }
        /* 案例图片尺寸固定210*293px */
        .case-img-box img {
            width: 240px;
            height: 293px;
            object-fit: cover;
            display: block;
            margin: 0 auto;
        }
        /* 二维码角标 */
        .qrcode-corner {
            position: absolute;
            top: 0px;
            left: 0px;
            width: 46px;
            height: 44px;
            z-index: 1;
        }
        .qrcode-corner img {
            width: 100%;
            height: 100%;
            object-fit: contain;
        }
        /* 二维码遮罩层 */
        .qrcode-mask {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0, 102, 204, 0.85);
            display: flex;
            justify-content: center;
            align-items: center;
            opacity: 0;
            transition: opacity 0.3s;
            z-index: 2;
        }
        .case-item:hover .qrcode-mask {
            opacity: 1;
        }
        .qrcode-mask img {
            width: 150px;
            height: 150px;
            object-fit: contain;
        }
        /* 案例标题样式：14px加粗 */
        .case-title {
            padding: 15px;
            text-align: center;
        }
        .case-title h4 {
            font-size: 14px;
            font-weight: bold;
            color: #333;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        /* 核心功能 */
        .feature {
            padding: 100px 0;
            background: #fff;
        }
        .section-title {
            text-align: center;
            margin-bottom: 40px;
        }
        .section-title h3 {
            font-size: 36px;
            margin-bottom: 20px;
            color: #333;
        }
        .section-title p {
            font-size: 16px;
            color: #666;
            max-width: 700px;
            margin: 0 auto;
        }
        .feature-list {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
            gap: 40px;
        }
        .feature-item {
            text-align: left;
            padding: 30px;
            border-radius: 8px;
            transition: all 0.3s;
        }
		  @media (max-width: 480px) { 
		   .feature-list {grid-template-columns: repeat(auto-fit, minmax(100%, 1fr)); }
		  .feature-item {  padding: 12px;}
		  }
		.feature-item .picture
		{
			justify-content: center;
			align-items: center;
			text-align: center;
			width: 366px;
			height: 220px;
			border-radius: 8px;
			background-image: linear-gradient(180deg, #eaf3fb 0, #fff 100%);
			box-shadow: 0 0 0 4px #fff;
			overflow:hidden;
		}
		.feature-item .img-box
		{
			justify-content: center;
			align-items: center;
			text-align: center;
			border-radius: 8px;
			background-image: linear-gradient(180deg, #eaf3fb 0, #fff 100%);
			box-shadow: 0 0 0 4px #fff;
			overflow:hidden;
		}
		
		
        .feature-item img {
            width:324px;
			height:auto;
			margin: 10px auto;
        }

        .feature-item:hover {
            box-shadow: 0 10px 30px rgba(0,0,0,0.08);
            transform: translateY(-5px);
        }
        .feature-item i {
            font-size: 48px;
            color: #0066cc;
            margin-bottom: 20px;
            display: inline-block;
        }
        .feature-item h4 {
            font-size: 20px;
            font-weight: normal;
            margin: 15px auto;
            color: #333;
        }
        .feature-item p {
            font-size: 14px;
            font-weight: normal;
            line-height: 1.8;
            color: #666;
        }
        /* 应用场景版块 */
        .scenario {
            padding: 100px 0;
            background: #f7f8fa;
        }
        .scenario-list {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
            gap: 40px;
        }
		 @media (max-width: 480px) { 
		   .scenario-list {grid-template-columns: repeat(auto-fit, minmax(100%, 1fr)); }
		  .feature-item {  padding: 12px;}
		  }
        .scenario-item {
            background: #fff;
            border-radius: 8px;
            overflow: hidden;
            transition: all 0.3s;
            box-shadow: 0 2px 10px rgba(0,0,0,0.05);
        }
        .scenario-item:hover {
            box-shadow: 0 10px 30px rgba(0,0,0,0.08);
            transform: translateY(-5px);
        }
        .scenario-item .img-box {
            width: 100%;
            height: 200px;
            overflow: hidden;
        }
        .scenario-item .img-box img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s;
        }
        .scenario-item:hover .img-box img {
            transform: scale(1.05);
        }
        .scenario-item .text-box {
            padding: 25px;
            text-align: left;
        }
        .scenario-item .text-box h4 {
            font-size: 20px;
            font-weight: 600;
            margin-bottom: 15px;
            color: #333;
        }
        .scenario-item .text-box p {
            font-size: 14px;
            line-height: 1.8;
            color: #666;
        }
        /* 操作流程 */
        .process {
            padding: 100px 0;
            background: #fff;
        }
        .process-list {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 30px;
            position: relative;
        }
        .process-list::after {
            content: "";
            position: absolute;
            top: 40px;
            left: 5%;
            width: 90%;
            height: 2px;
            background: #0066cc;
            z-index: 1;
        }
        .process-item {
            text-align: center;
            position: relative;
            z-index: 2;
            background: #fff;
            padding: 40px 20px;
            border-radius: 8px;
            box-shadow: 0 2px 10px rgba(0,0,0,0.05);
        }
        .process-item .num {
            width: 80px;
            height: 80px;
            line-height: 80px;
            border-radius: 50%;
            background: #0066cc;
            color: #fff;
            font-size: 36px;
            font-weight: 700;
            margin: 0 auto 20px;
        }
        .process-item h4 {
            font-size: 20px;
            margin-bottom: 15px;
            color: #333;
        }
        .process-item p {
            font-size: 14px;
            color: #666;
            line-height: 1.8;
        }
        /* 产品优势 */
        .advantage {
            padding: 100px 0;
            background: #f7f8fa;
        }
        .advantage-list {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
        }
        .advantage-item {
            width: 48%;
            margin-bottom: 40px;
            display: flex;
            align-items: flex-start;
        }
        .advantage-item i {
            font-size: 32px;
            color: #0066cc;
            margin-right: 20px;
            margin-top: 8px;
        }
        .advantage-item .text h4 {
            font-size: 20px;
            margin-bottom: 10px;
            color: #333;
        }
        .advantage-item .text p {
            font-size: 14px;
            line-height: 1.8;
            color: #666;
        }
        /* 底部 */
        .footer {
            width: 100%;
            background: #333;
            color: #ccc;
            padding: 60px 0 30px;
        }
        .footer .footer-content {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            margin-bottom: 40px;
        }
        .footer .company-info {
            width: 50%;
            margin-bottom: 30px;
        }
        .footer .company-info h5 {
            font-size: 20px;
            color: #fff;
            margin-bottom: 20px;
            font-weight: 600;
        }
        .footer .company-info p {
            font-size: 14px;
            line-height: 2;
        }
        .footer .link {
            width: 40%;
            margin-bottom: 30px;
        }
        .footer .link h5 {
            font-size: 20px;
            color: #fff;
            margin-bottom: 20px;
            font-weight: 600;
        }
        .footer .link a {
            display: block;
            font-size: 14px;
            line-height: 2;
            color: #ccc !important;
        }
        .footer .link a:hover {
            color: #fff !important;
        }
        .footer .copyright {
            text-align: center;
            font-size: 14px;
        }
        /* 响应式 */
        @media (max-width: 1400px) {
            /* 大屏适配：案例改为4列 */
            .case-list {
                grid-template-columns: repeat(4, 1fr);
            }
        }
        @media (max-width: 992px) {
            /* 中屏适配：案例改为3列 */
            .case-list {
                grid-template-columns: repeat(3, 1fr);
            }
        }
        @media (max-width: 768px) {
            .banner .banner-content h2 {
                font-size: 32px;
            }
            .banner .banner-tags {
                gap: 10px;
                margin-bottom: 28px;
            }
            .banner .banner-tag {
                font-size: 14px;
                padding: 6px 12px;
            }
            .banner .banner-desc {
                font-size: 14px;
            }
            .section-title h3 {

                font-size: 28px;
            }
            .brand .section-title h3 {
                font-size: 24px;
            }
            /* 品牌图片移动端适配 */
            .brand-scroll {
                height: 150px;
            }
            .brand-item {
                width: 500px;
            }
            .brand-item img {
                min-width: 400px;
            }
            @keyframes scroll {
                0% {
                    transform: translateX(0);
                }
                100% {
                    transform: translateX(-500px);
                }
            }
            /* 案例移动端适配：改为2列 */
            .case-list {
                grid-template-columns: repeat(2, 1fr);
            }
            .advantage-item {
                width: 100%;
            }
            .footer .company-info, .footer .link {
                width: 100%;
            }
            .process-list::after {
                display: none;
            }
        }
        @media (max-width: 480px) {
            .banner {
                height: auto;
            }
            .banner .btn {
                display: block;
                margin: 10px auto;
                width: 80%;
            }
            .brand {
                padding: 60px 0;
            }
            /* 品牌图片手机端适配 */
            .brand-scroll {
                height: 48px;
            }
            .brand-item {
                width: 100%;
            }
            .brand-item img {
                /*min-width: 300px;*/
            }
            @keyframes scroll {
                0% {
                    transform: translateX(0);
                }
                100% {
                    transform: translateX(-350px);
                }
            }
            /* 案例手机端适配：改为1列 */
            .case-list {
                grid-template-columns: 1fr;
            }
            .case, .feature, .scenario, .process, .advantage {
                padding: 60px 0;
            }
            .scenario-item .img-box {
                height: 160px;
            }
        }