/* 全局内嵌CSS，无任何外部样式文件 */
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: "Microsoft YaHei", SimHei, sans-serif;
        }
        html, body {
            background-color: #0c101a;
            color: #e6edf7;
            line-height: 1.6;
        }
        a {
            text-decoration: none;
            color: inherit;
        }
        ul {
            list-style: none;
        }
        .container {
            width: 92%;
            max-width: 1200px;
            margin: 0 auto;
        }
        /* 顶部导航栏 */
        header {
            background: #101627;
            border-bottom: 1px solid #1f2b48;
            position: sticky;
            top: 0;
            z-index: 99;
        }
        .nav-wrap {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 14px 0;
        }
        .logo {
            font-size: 24px;
            font-weight: bold;
            color: #3690ff;
        }
        .logo span {
            color: #4cd964;
        }
        .nav-list {
            display: flex;
            gap: 32px;
        }
        .nav-list li a {
            font-size: 15px;
            color: #b0c4e8;
            transition: color 0.2s;
        }
        .nav-list li a:hover {
            color: #3690ff;
        }
        /* 移动端导航适配 */
        @media (max-width:768px) {
            .nav-wrap {
                flex-direction: column;
                gap: 12px;
                padding: 16px 0;
            }
            .nav-list {
                flex-wrap: wrap;
                justify-content: center;
                gap: 18px;
            }
        }
        /* 头部三张主图展示模块 */
        .banner-box {
            padding: 40px 0;
        }
        .banner-row {
            display: flex;
            gap: 20px;
        }
        .banner-item {
            flex: 1;
            height: 260px;
            background: linear-gradient(135deg, #182547, #233b70);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            color: #fff;
            border: 1px solid #304882;
        }
        @media (max-width:768px) {
            .banner-row {
                flex-direction: column;
            }
            .banner-item {
                height: 180px;
            }
        }
        /* 通用区块标题 */
        .block-title {
            text-align: center;
            font-size: 28px;
            margin: 50px 0 30px;
            color: #fff;
            position: relative;
        }
        .block-title::after {
            content: "";
            display: block;
            width: 80px;
            height: 3px;
            background: #3690ff;
            margin: 10px auto 0;
        }
        /* 功能卡片模块 */
        .card-wrap {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 22px;
            margin-bottom: 40px;
        }
        .func-card {
            background: #131b30;
            border: 1px solid #22335c;
            border-radius: 10px;
            padding: 24px 18px;
            text-align: center;
            transition: 0.3s;
        }
        .func-card:hover {
            border-color: #3690ff;
            transform: translateY(-4px);
        }
        .card-icon {
            width: 60px;
            height: 60px;
            background: #1f325e;
            border-radius: 50%;
            margin: 0 auto 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #3690ff;
            font-size: 24px;
        }
        .func-card h3 {
            font-size: 17px;
            margin-bottom: 10px;
            color: #fff;
        }
        .func-card p {
            font-size: 14px;
            color: #a0b8e0;
        }
        @media (max-width:1024px) {
            .card-wrap {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width:480px) {
            .card-wrap {
                grid-template-columns: 1fr;
            }
        }
        /* 功能介绍区块 */
        .intro-block {
            background: #131b30;
            border-radius: 12px;
            padding: 35px;
            border: 1px solid #22335c;
            margin-bottom: 40px;
        }
        .intro-block h3 {
            font-size: 20px;
            margin-bottom: 18px;
            color: #4cd964;
        }
        .intro-list li {
            padding: 8px 0;
            font-size: 15px;
            color: #c2d4f5;
            padding-left: 20px;
            position: relative;
        }
        .intro-list li::before {
            content: "?";
            color: #3690ff;
            position: absolute;
            left: 0;
        }
        /* 下载按钮专区 */
        .download-area {
            background: linear-gradient(135deg, #0f1a38, #172b5a);
            border-radius: 12px;
            padding: 45px 30px;
            text-align: center;
            margin: 50px 0;
        }
        .download-area h2 {
            font-size: 26px;
            margin-bottom: 14px;
            color: #fff;
        }
        .download-area p {
            color: #b0c4e8;
            margin-bottom: 30px;
        }
        .download-btn {
            display: inline-block;
            padding: 16px 48px;
            background: linear-gradient(90deg, #2478e8, #3690ff);
            color: #fff;
            font-size: 18px;
            font-weight: bold;
            border-radius: 8px;
            transition: all 0.2s;
        }
        .download-btn:hover {
            background: linear-gradient(90deg, #1a62c9, #297ce0);
            box-shadow: 0 0 20px rgba(54, 144, 255, 0.4);
        }
        /* 部署教程模块 */
        .tutorial-box {
            margin-bottom: 50px;
        }
        .step-item {
            background: #131b30;
            border: 1px solid #22335c;
            border-radius: 10px;
            padding: 22px;
            margin-bottom: 16px;
        }
        .step-item h4 {
            font-size: 17px;
            color: #3690ff;
            margin-bottom: 10px;
        }
        .step-item p {
            color: #b0c4e8;
            font-size: 15px;
        }
        /* FAQ问答模块 */
        .faq-box {
            margin-bottom: 60px;
        }
        .faq-item {
            background: #131b30;
            border: 1px solid #22335c;
            border-radius: 10px;
            margin-bottom: 14px;
            overflow: hidden;
        }
        .faq-q {
            padding: 16px 22px;
            background: #182547;
            font-weight: bold;
            color: #fff;
        }
        .faq-a {
            padding: 16px 22px;
            color: #b0c4e8;
            font-size: 15px;
        }
        /* 底部信息模块 */
        footer {
            background: #0a0e19;
            border-top: 1px solid #1f2b48;
            padding: 40px 0 25px;
        }
        .footer-row {
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 30px;
            margin-bottom: 30px;
        }
        .footer-col h4 {
            font-size: 17px;
            margin-bottom: 16px;
            color: #fff;
        }
        .footer-col li {
            margin: 8px 0;
            font-size: 14px;
            color: #899fc7;
        }
        .footer-col li a:hover {
            color: #3690ff;
        }
        .copyright {
            text-align: center;
            font-size: 13px;
            color: #6478a3;
            padding-top: 20px;
            border-top: 1px solid #141d33;
        }