* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: "Microsoft Yahei", sans-serif;
        }
        body {
            background-color: #f5f7fa;
            color: #333;
            line-height: 1.6;
        }
        a {
            text-decoration: none;
            color: inherit;
        }
        ul {
            list-style: none;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 15px;
        }

        /* 顶部导航 */
        .header {
            background: #1a202c;
            color: #fff;
            box-shadow: 0 2px 8px rgba(0,0,0,0.15);
            position: sticky;
            top: 0;
            z-index: 99;
        }
        .nav {
            display: flex;
            justify-content: space-between;
            align-items: center;
            height: 60px;
        }
        .nav-logo {
            font-size: 22px;
            font-weight: bold;
            color: #ff6700;
        }
        .nav-list {
            display: flex;
            gap: 30px;
        }
        .nav-list li a {
            font-size: 16px;
            padding: 8px 12px;
            transition: color 0.3s;
        }
        .nav-list li a:hover {
            color: #ff6700;
        }
        /* 移动端导航适配 */
        @media (max-width: 768px) {
            .nav {
                height: auto;
                flex-direction: column;
                padding: 15px 0;
                gap: 10px;
            }
            .nav-list {
                gap: 15px;
                flex-wrap: wrap;
                justify-content: center;
            }
        }

        /* 三张主图模块 */
        .banner {
            padding: 30px 0;
        }
        .banner-row {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .banner-item {
            border-radius: 8px;
            overflow: hidden;
            box-shadow: 0 3px 12px rgba(0,0,0,0.1);
            background: #fff;
        }
        .banner-item img {
            width: 100%;
            height: 220px;
            object-fit: cover;
            display: block;
        }
        /* 移动端主图单列 */
        @media (max-width: 768px) {
            .banner-row {
                grid-template-columns: 1fr;
            }
            .banner-item img {
                height: 180px;
            }
        }

        /* 下载按钮区域 */
        .download-box {
            text-align: center;
            padding: 40px 0;
            background: #fff;
            margin: 20px 0;
            border-radius: 8px;
            box-shadow: 0 3px 12px rgba(0,0,0,0.08);
        }
        .download-title {
            font-size: 24px;
            margin-bottom: 25px;
            color: #1a202c;
        }
        .download-btn {
            display: inline-block;
            padding: 14px 45px;
            background: #ff6700;
            color: #fff;
            font-size: 18px;
            font-weight: bold;
            border-radius: 50px;
            transition: background 0.3s;
            box-shadow: 0 4px 10px rgba(255,103,0,0.3);
        }
        .download-btn:hover {
            background: #e05a00;
        }

        /* 功能卡片模块 */
        .card-section {
            padding: 30px 0;
        }
        .section-title {
            text-align: center;
            font-size: 26px;
            margin-bottom: 35px;
            color: #1a202c;
            position: relative;
        }
        .section-title::after {
            content: "";
            display: block;
            width: 80px;
            height: 3px;
            background: #ff6700;
            margin: 10px auto 0;
            border-radius: 2px;
        }
        .card-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .card-item {
            background: #fff;
            padding: 25px 20px;
            border-radius: 8px;
            box-shadow: 0 3px 10px rgba(0,0,0,0.08);
            text-align: center;
            transition: transform 0.3s;
        }
        .card-item:hover {
            transform: translateY(-5px);
        }
        .card-item img {
            width: 60px;
            height: 60px;
            margin-bottom: 15px;
            object-fit: contain;
        }
        .card-item h3 {
            font-size: 18px;
            margin-bottom: 10px;
            color: #222;
        }
        .card-item p {
            font-size: 14px;
            color: #666;
        }
        /* 卡片自适应 */
        @media (max-width: 992px) {
            .card-row {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 576px) {
            .card-row {
                grid-template-columns: 1fr;
            }
        }

        /* 功能介绍模块 */
        .intro-section {
            background: #fff;
            padding: 40px 0;
            border-radius: 8px;
            box-shadow: 0 3px 12px rgba(0,0,0,0.08);
            margin: 30px 0;
        }
        .intro-content {
            padding: 0 20px;
        }
        .intro-content p {
            font-size: 16px;
            color: #555;
            margin-bottom: 15px;
            text-indent: 2em;
        }
        .intro-list {
            margin: 20px 0;
            padding-left: 20px;
        }
        .intro-list li {
            font-size: 16px;
            color: #555;
            margin: 10px 0;
            list-style: disc;
        }

        /* 部署教程模块 */
        .tutorial-section {
            padding: 30px 0;
        }
        .tutorial-box {
            background: #fff;
            padding: 30px;
            border-radius: 8px;
            box-shadow: 0 3px 12px rgba(0,0,0,0.08);
        }
        .tutorial-step {
            margin: 18px 0;
            padding-left: 15px;
            border-left: 3px solid #ff6700;
        }
        .tutorial-step h4 {
            font-size: 17px;
            margin-bottom: 8px;
            color: #222;
        }
        .tutorial-step p {
            font-size: 15px;
            color: #666;
        }

        /* 常见问题模块 */
        .faq-section {
            margin: 30px 0;
        }
        .faq-box {
            background: #fff;
            padding: 30px;
            border-radius: 8px;
            box-shadow: 0 3px 12px rgba(0,0,0,0.08);
        }
        .faq-item {
            margin-bottom: 20px;
            padding-bottom: 15px;
            border-bottom: 1px dashed #eee;
        }
        .faq-item:last-child {
            border-bottom: none;
            margin-bottom: 0;
            padding-bottom: 0;
        }
        .faq-question {
            font-size: 17px;
            font-weight: bold;
            color: #1a202c;
            margin-bottom: 8px;
        }
        .faq-answer {
            font-size: 15px;
            color: #666;
        }

        /* 底部参数模块 */
        .footer {
            background: #1a202c;
            color: #ccc;
            padding: 40px 0 20px;
            margin-top: 40px;
        }
        .footer-row {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
            margin-bottom: 30px;
        }
        .footer-col h4 {
            font-size: 18px;
            color: #fff;
            margin-bottom: 15px;
            padding-bottom: 8px;
            border-bottom: 1px solid #333;
        }
        .footer-col p, .footer-col li {
            font-size: 14px;
            margin: 8px 0;
        }
        .copyright {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid #333;
            font-size: 14px;
        }
        /* 底部自适应 */
        @media (max-width: 768px) {
            .footer-row {
                grid-template-columns: 1fr;
                gap: 20px;
            }
        }