/* 全局样式 */
        ▪ {

            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: "Microsoft YaHei", sans-serif;
            color: #333;
            background-color: #f8f9fa;
        }
        /* 主色调 */
        :root {
            --primary-color: #1677ff;
            --secondary-color: #4096ff;
            --light-color: #e6f0ff;
            --dark-color: #0e5bc9;
            --text-gray: #666;
            --text-light: #999;
        }
        .bg-primary-custom {
            background-color: var(--primary-color) !important;
        }
        .text-primary-custom {
            color: var(--primary-color) !important;
        }
        .btn-primary-custom {
            background-color: var(--primary-color);
            border-color: var(--primary-color);
        }
        .btn-primary-custom:hover {
            background-color: var(--dark-color);
            border-color: var(--dark-color);
        }
        /* 导航栏 */
        .navbar {
            box-shadow: 0 2px 8px rgba(0,0,0,0.08);
            background-color: #fff !important;
        }
        .navbar-brand img {
            height: 40px;
        }
        .nav-link {
            color: #333 !important;
            font-weight: 500;
            margin: 0 8px;
        }
        .nav-link:hover, .nav-link.active {
            color: var(--primary-color) !important;
        }
        /* 首屏banner */
        .banner {
            padding: 80px 0;
            background: linear-gradient(135deg, #e6f0ff 0%, #f5f9ff 100%);
            margin-top: 70px;
        }
        .banner-title {
            font-size: 2.5rem;
            font-weight: 700;
            line-height: 1.4;
            margin-bottom: 20px;
        }
        .banner-desc {
            font-size: 1.1rem;
            color: var(--text-gray);
            margin-bottom: 30px;
            line-height: 1.6;
        }
        .banner-btn {
            padding: 12px 30px;
            font-size: 1.1rem;
            border-radius: 4px;
            margin-right: 15px;
        }
        /* 通用模块标题 */
        .module-title {
            font-size: 2rem;
            font-weight: 700;
            text-align: center;
            margin-bottom: 15px;
        }
        .module-desc {
            color: var(--text-gray);
            text-align: center;
            max-width: 700px;
            margin: 0 auto 60px auto;
            line-height: 1.6;
        }
        /* 功能模块 */
        .function {
            padding: 100px 0;
            background-color: #fff;
        }
        .func-card {
            text-align: center;
            padding: 30px 20px;
            border-radius: 8px;
            transition: all 0.3s ease;
            height: 100%;
        }
        .func-card:hover {
            box-shadow: 0 8px 24px rgba(22,119,255,0.1);
            transform: translateY(-5px);
        }
        .func-icon {
            font-size: 2.5rem;
            color: var(--primary-color);
            margin-bottom: 20px;
        }
        .func-card h4 {
            font-weight: 600;
            margin-bottom: 15px;
        }
        .func-card p {
            color: var(--text-gray);
            line-height: 1.6;
        }
        /* 优势模块 */
        .advantage {
            padding: 100px 0;
            background-color: #f8f9fa;
        }
        .adv-item {
            display: flex;
            align-items: flex-start;
            margin-bottom: 40px;
        }
        .adv-icon {
            font-size: 1.8rem;
            color: var(--primary-color);
            margin-right: 20px;
            margin-top: 5px;
        }
        .adv-content h4 {
            font-weight: 600;
            margin-bottom: 10px;
        }
        .adv-content p {
            color: var(--text-gray);
            line-height: 1.6;
        }
        /* 场景模块 */
        .scene {
            padding: 100px 0;
            background-color: #fff;
        }
        .scene-card {
            border: 1px solid #eee;
            border-radius: 8px;
            overflow: hidden;
            transition: all 0.3s ease;
            height: 100%;
        }
        .scene-card:hover {
            box-shadow: 0 8px 24px rgba(0,0,0,0.08);
        }
        .scene-card img {
            width: 100%;
            height: 180px;
            object-fit: cover;
        }
        .scene-card .card-body {
            padding: 25px;
        }
        .scene-card h5 {
            font-weight: 600;
            margin-bottom: 15px;
        }
        .scene-card p {
            color: var(--text-gray);
            line-height: 1.6;
        }
        /* 下载模块 */
        .download {
            padding: 80px 0;
            background-color: var(--primary-color);
            color: #fff;
            text-align: center;
        }
        .download-title {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 20px;
        }
        .download-desc {
            font-size: 1.1rem;
            margin-bottom: 30px;
            opacity: 0.9;
        }
        .download-btn {
            padding: 12px 40px;
            font-size: 1.1rem;
            background-color: #fff;
            color: var(--primary-color);
            border: none;
            border-radius: 4px;
            font-weight: 500;
            margin: 0 10px;
        }
        .download-btn:hover {
            background-color: #f5f5f5;
        }
        /* 底部 */
        .footer {
            padding: 60px 0 30px 0;
            background-color: #282c34;
            color: #ccc;
        }
        .footer-logo {
            height: 40px;
            margin-bottom: 20px;
        }
        .footer-desc {
            line-height: 1.6;
            margin-bottom: 20px;
        }
        .footer-title {
            font-size: 1.2rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 20px;
        }
        .footer-link {
            display: block;
            color: #ccc;
            margin-bottom: 10px;
            text-decoration: none;
        }
        .footer-link:hover {
            color: var(--primary-color);
        }
        .copyright {
            text-align: center;
            padding-top: 30px;
            margin-top: 30px;
            border-top: 1px solid #444;
            color: #999;
        }
        /* 响应式适配 */
        @media (max-width: 992px) {
            .banner-title {
                font-size: 2rem;
            }
            .module-title {
                font-size: 1.8rem;
            }
            .download-title {
                font-size: 1.8rem;
            }
        }
        @media (max-width: 768px) {
            .banner {
                padding: 50px 0;
                text-align: center;
            }
            .banner-btn {
                margin-bottom: 15px;
            }
            .function, .advantage, .scene {
                padding: 60px 0;
            }
            .adv-item {
                justify-content: center;
                text-align: center;
                flex-direction: column;
            }
            .adv-icon {
                margin: 0 auto 15px auto;
            }
            .download-btn {
                display: block;
                margin: 0 auto 15px auto;
                width: 80%;
            }
        }
        @media (max-width: 576px) {
            .banner-title {
                font-size: 1.6rem;
            }
            .module-title {
                font-size: 1.5rem;
            }
            .download-title {
                font-size: 1.5rem;
            }
            .func-card {
                padding: 20px 10px;
            }
        }