* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: system-ui, -apple-system, sans-serif;
        }
        body {
            background-color: #0f141e;
            color: #e8edf3;
            line-height: 1.6;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 15px;
        }
        /* 顶部导航 */
        header {
            background-color: #171d29;
            border-bottom: 1px solid #252e3f;
            position: sticky;
            top: 0;
            z-index: 99;
        }
        .nav-wrap {
            display: flex;
            justify-content: space-between;
            align-items: center;
            height: 70px;
        }
        .logo-text {
            font-size: 22px;
            font-weight: bold;
            color: #4096ff;
        }
        .nav-list {
            display: flex;
            gap: 30px;
        }
        .nav-list a {
            color: #b4c2d8;
            text-decoration: none;
            transition: color 0.2s;
        }
        .nav-list a:hover {
            color: #4096ff;
        }
        /* 移动端导航适配 */
        @media (max-width:768px) {
            .nav-list {
                display: none;
            }
            .logo-text {
                font-size: 18px;
            }
        }
        /* 主图横幅模块 */
        .banner {
            width: 100%;
            height: 420px;
            background: linear-gradient(135deg, #1a2b47 0%, #0d1524 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            border-radius: 0 0 12px 12px;
            margin-bottom: 60px;
            position: relative;
            overflow: hidden;
        }
        .banner-content h1 {
            font-size: 42px;
            margin-bottom: 16px;
            color: #fff;
        }
        .banner-content p {
            font-size: 18px;
            color: #b4c2d8;
            max-width: 700px;
            margin: 0 auto 30px;
        }
        /* 四大版本下载按钮区 */
        .download-box {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin: 40px 0 70px;
        }
        .download-btn {
            display: block;
            text-align: center;
            padding: 24px 10px;
            background-color: #1e293b;
            border: 1px solid #334155;
            border-radius: 10px;
            text-decoration: none;
            transition: all 0.3s ease;
        }
        .download-btn:hover {
            border-color: #4096ff;
            background-color: #233044;
            transform: translateY(-4px);
        }
        .download-btn h3 {
            color: #fff;
            font-size: 19px;
            margin-bottom: 8px;
        }
        .download-btn span {
            color: #86909c;
            font-size: 14px;
        }
        /* 手机端按钮自适应 */
        @media (max-width:992px) {
            .download-box {
                grid-template-columns: repeat(2,1fr);
            }
        }
        @media (max-width:500px) {
            .download-box {
                grid-template-columns: 1fr;
            }
            .banner-content h1 {
                font-size: 28px;
            }
            .banner {
                height: 300px;
            }
        }
        /* 通用区块标题 */
        .section-title {
            text-align: center;
            font-size: 28px;
            margin-bottom: 45px;
            color: #fff;
            position: relative;
        }
        .section-title::after {
            content: "";
            width: 70px;
            height: 3px;
            background: #4096ff;
            position: absolute;
            left: 50%;
            transform: translateX(-50%);
            bottom: -12px;
        }
        /* 功能卡片模块 */
        .function-wrap {
            margin-bottom: 80px;
        }
        .card-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .func-card {
            background: #171d29;
            border: 1px solid #2a3548;
            border-radius: 12px;
            padding: 26px 22px;
        }
        .func-card h4 {
            font-size: 20px;
            color: #4096ff;
            margin-bottom: 12px;
        }
        .func-card p {
            color: #a2b1cc;
            font-size: 15px;
        }
        @media (max-width:768px) {
            .card-grid {
                grid-template-columns: repeat(2,1fr);
            }
        }
        @media (max-width:480px) {
            .card-grid {
                grid-template-columns: 1fr;
            }
        }
        /* 部署教程区块 */
        .tutorial-wrap {
            background: #171d29;
            padding: 50px 0;
            margin-bottom: 80px;
            border-radius: 14px;
        }
        .tutorial-list {
            max-width: 850px;
            margin: 0 auto;
        }
        .tutorial-item {
            padding: 16px 0;
            border-bottom: 1px solid #2a3548;
        }
        .tutorial-item:last-child {
            border-bottom: none;
        }
        .tutorial-item h5 {
            font-size: 17px;
            margin-bottom: 6px;
            color: #fff;
        }
        .tutorial-item p {
            color: #a2b1cc;
        }
        /* FAQ常见问题 */
        .faq-wrap {
            margin-bottom: 80px;
        }
        .faq-item {
            background: #171d29;
            border-radius: 10px;
            padding: 20px 24px;
            margin-bottom: 16px;
            border: 1px solid #252e3f;
        }
        .faq-item h5 {
            font-size: 17px;
            color: #fff;
            margin-bottom: 8px;
        }
        .faq-item p {
            color: #a2b1cc;
        }
        /* 底部参数模块 */
        footer {
            background: #10141b;
            border-top: 1px solid #202836;
            padding: 60px 0 30px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 40px;
            margin-bottom: 50px;
        }
        .footer-block h6 {
            font-size: 18px;
            color: #fff;
            margin-bottom: 18px;
        }
        .footer-block p, .footer-block li {
            color: #8896ad;
            font-size: 14px;
            margin-bottom: 8px;
            list-style: none;
        }
        .copyright {
            text-align: center;
            color: #64748b;
            font-size: 13px;
            padding-top: 20px;
            border-top: 1px solid #1e2633;
        }
        @media (max-width:768px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 30px;
            }
        }