* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: "Microsoft Yahei", sans-serif;
        }

        body {
            background-color: #0f141e;
            color: #e5e7eb;
            line-height: 1.6;
        }

        /* 顶部导航栏 */
        .header {
            background-color: #161d2b;
            box-shadow: 0 2px 10px rgba(0,0,0,0.3);
            position: sticky;
            top: 0;
            z-index: 99;
        }
        .nav-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 15px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 70px;
        }
        .logo {
            font-size: 24px;
            font-weight: bold;
            color: #3b82f6;
            text-decoration: none;
        }
        .nav-menu a {
            color: #e5e7eb;
            text-decoration: none;
            margin-left: 25px;
            font-size: 16px;
            transition: color 0.3s;
        }
        .nav-menu a:hover {
            color: #3b82f6;
        }
        /* 移动端导航适配 */
        @media (max-width: 768px) {
            .nav-menu a {
                margin-left: 12px;
                font-size: 14px;
            }
            .logo {
                font-size: 20px;
            }
        }

        /* 主图横幅模块 */
        .banner {
            max-width: 1200px;
            margin: 30px auto;
            padding: 0 15px;
        }
        .banner-img {
            width: 100%;
            height: 380px;
            background-color: #1e293b;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            border: 1px solid #273444;
            overflow: hidden;
        }
        .banner-tips {
            color: #94a3b8;
            font-size: 18px;
            text-align: center;
        }
        /* 移动端主图 */
        @media (max-width: 768px) {
            .banner-img {
                height: 220px;
            }
        }

        /* 下载按钮区域 */
        .download-box {
            max-width: 1200px;
            margin: 40px auto;
            padding: 0 15px;
            text-align: center;
        }
        .download-btn {
            display: inline-block;
            background: linear-gradient(135deg, #2563eb, #1d4ed8);
            color: #fff;
            font-size: 20px;
            font-weight: bold;
            padding: 16px 60px;
            border-radius: 50px;
            text-decoration: none;
            box-shadow: 0 4px 15px rgba(37, 99, 235, 0.4);
            transition: transform 0.2s, box-shadow 0.2s;
        }
        .download-btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 6px 20px rgba(37, 99, 235, 0.6);
        }
        .download-desc {
            margin-top: 15px;
            color: #94a3b8;
            font-size: 15px;
        }
        /* 移动端下载按钮 */
        @media (max-width: 768px) {
            .download-btn {
                font-size: 16px;
                padding: 12px 40px;
            }
        }

        /* 通用区块标题 */
        .section-title {
            max-width: 1200px;
            margin: 60px auto 20px;
            padding: 0 15px;
            font-size: 26px;
            color: #ffffff;
            border-left: 4px solid #3b82f6;
            padding-left: 15px;
        }
        @media (max-width: 768px) {
            .section-title {
                font-size: 22px;
            }
        }

        /* 功能卡片模块 */
        .card-wrap {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 15px;
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .func-card {
            background-color: #161d2b;
            border-radius: 10px;
            padding: 25px 20px;
            border: 1px solid #273444;
            text-align: center;
            transition: border-color 0.3s;
        }
        .func-card:hover {
            border-color: #3b82f6;
        }
        .card-icon {
            width: 60px;
            height: 60px;
            background-color: #1e293b;
            border-radius: 50%;
            margin: 0 auto 15px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #3b82f6;
            font-size: 24px;
        }
        .card-title {
            font-size: 17px;
            color: #fff;
            margin-bottom: 8px;
        }
        .card-desc {
            font-size: 14px;
            color: #94a3b8;
        }
        /* 卡片自适应 */
        @media (max-width: 992px) {
            .card-wrap {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 480px) {
            .card-wrap {
                grid-template-columns: 1fr;
            }
        }

        /* 功能介绍模块 */
        .intro-box {
            max-width: 1200px;
            margin: 20px auto;
            padding: 0 15px;
            background-color: #161d2b;
            border-radius: 10px;
            padding: 30px;
            border: 1px solid #273444;
        }
        .intro-box p {
            font-size: 15px;
            color: #cbd5e1;
            margin-bottom: 12px;
            text-indent: 2em;
        }

        /* 部署教程模块 */
        .tutorial-box {
            max-width: 1200px;
            margin: 20px auto;
            padding: 0 15px;
            background-color: #161d2b;
            border-radius: 10px;
            padding: 30px;
            border: 1px solid #273444;
        }
        .tutorial-step {
            margin-bottom: 18px;
            padding-left: 20px;
            position: relative;
        }
        .tutorial-step::before {
            content: "";
            position: absolute;
            left: 0;
            top: 8px;
            width: 8px;
            height: 8px;
            background-color: #3b82f6;
            border-radius: 50%;
        }
        .tutorial-step h4 {
            color: #fff;
            font-size: 16px;
            margin-bottom: 5px;
        }
        .tutorial-step p {
            color: #94a3b8;
            font-size: 14px;
        }

        /* 常见问题模块 */
        .faq-box {
            max-width: 1200px;
            margin: 20px auto;
            padding: 0 15px;
        }
        .faq-item {
            background-color: #161d2b;
            border: 1px solid #273444;
            border-radius: 8px;
            margin-bottom: 12px;
            padding: 18px 22px;
        }
        .faq-q {
            color: #ffffff;
            font-size: 16px;
            margin-bottom: 8px;
        }
        .faq-a {
            color: #94a3b8;
            font-size: 14px;
        }

        /* 底部参数模块 */
        .footer {
            margin-top: 80px;
            background-color: #161d2b;
            padding: 40px 0;
            border-top: 1px solid #273444;
        }
        .footer-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 15px;
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }
        .footer-col h3 {
            color: #3b82f6;
            font-size: 18px;
            margin-bottom: 15px;
        }
        .footer-col p, .footer-col li {
            color: #94a3b8;
            font-size: 14px;
            list-style: none;
            margin-bottom: 8px;
        }
        .copyright {
            text-align: center;
            margin-top: 40px;
            padding-top: 20px;
            border-top: 1px solid #273444;
            color: #64748b;
            font-size: 13px;
        }
        /* 底部自适应 */
        @media (max-width: 768px) {
            .footer-container {
                grid-template-columns: 1fr;
            }
        }