/* 内联CSS（如需单独文件，可将此部分保存为style.css） */
        :root {
            --primary-bg: #1a1a1a;       /* 主背景色 */
            --secondary-bg: #2d2d2d;     /* 辅助背景色 */
            --text-white: #ffffff;       /* 白色文字 */
            --text-gray: #cccccc;        /* 灰色文字 */
            --accent-orange: #ff6600;    /* 行动色（橙色） */
            --border-color: #444444;     /* 边框色 */
            --card-shadow: 0 4px 12px rgba(0,0,0,0.3); /* 卡片阴影 */
        }

        * { margin: 0; padding: 0; box-sizing: border-box; }
        body {
            font-family: 'Noto Sans SC', sans-serif;
            font-size: 14px;
            line-height: 1.8;
            color: var(--text-gray);
            background-color: var(--primary-bg);
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* 头部导航 */
        .header {
            background-color: rgba(26,26,26,0.95);
            backdrop-filter: blur(10px);
            position: fixed;
            top: 0;
            width: 100%;
            z-index: 1000;
            padding: 15px 0;
            border-bottom: 1px solid var(--border-color);
        }

        .header .container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .logo {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-white);
            text-decoration: none;
        }

        .logo span { color: var(--accent-orange); }

        .nav {
            display: flex;
            gap: 25px;
        }

        .nav a {
            color: var(--text-gray);
            text-decoration: none;
            font-weight: 500;
            transition: color 0.3s;
        }

        .nav a:hover { color: var(--accent-orange); }

        /* 英雄区域 */
        .hero {
            background: linear-gradient(rgba(26,26,26,0.8), rgba(26,26,26,0.8)), 
                        url('../images/1200600.png') center/cover;
            padding: 120px 0 80px;
            text-align: center;
            color: var(--text-white);
        }

        .hero h1 {
            font-size: 36px;
            font-weight: 700;
            margin-bottom: 20px;
            line-height: 1.3;
        }

        .hero p {
            font-size: 18px;
            margin-bottom: 40px;
            max-width: 700px;
            margin-left: auto;
            margin-right: auto;
        }

        .download-bar {
            display: flex;
            justify-content: center;
            align-items: center;
            gap: 30px;
            flex-wrap: wrap;
        }

        .download-count {
            background-color: var(--secondary-bg);
            padding: 12px 20px;
            border-radius: 8px;
            font-size: 16px;
        }

        .download-count strong { color: var(--accent-orange); font-size: 24px; }

        .download-btn {
            background-color: var(--accent-orange);
            color: var(--text-white);
            border: none;
            padding: 15px 40px;
            font-size: 18px;
            font-weight: 700;
            border-radius: 50px;
            cursor: pointer;
            transition: transform 0.3s, box-shadow 0.3s;
            box-shadow: 0 6px 15px rgba(255,102,0,0.4);
        }

        .download-btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 20px rgba(255,102,0,0.6);
        }

        /* 通用区块间距 */
        section { padding: 80px 0; }

        .section-title {
            text-align: center;
            font-size: 32px;
            font-weight: 700;
            margin-bottom: 50px;
            color: var(--text-white);
            position: relative;
        }

        .section-title::after {
            content: '';
            width: 80px;
            height: 4px;
            background-color: var(--accent-orange);
            position: absolute;
            bottom: -15px;
            left: 50%;
            transform: translateX(-50%);
            border-radius: 2px;
        }

        /* 视频直播区域 */
        .video-section {
            background-color: var(--secondary-bg);
        }

        .video-container {
            max-width: 900px;
            margin: 0 auto;
            background-color: var(--primary-bg);
            border-radius: 10px;
            overflow: hidden;
            box-shadow: var(--card-shadow);
        }

        .video-player {
            position: relative;
            padding-bottom: 56.25%; /* 16:9比例 */
            height: 0;
        }

        .video-player iframe {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            border: none;
        }

        .video-info {
            padding: 25px;
            text-align: center;
        }

        .video-info h3 {
            font-size: 24px;
            margin-bottom: 15px;
            color: var(--text-white);
        }

        .video-info p {
            color: var(--text-gray);
            margin-bottom: 15px;
        }

        .video-stats {
            display: flex;
            justify-content: center;
            gap: 20px;
            color: var(--text-gray);
            font-size: 14px;
        }

        /* 文章介绍区域 */
        .article-section {
            background-color: var(--primary-bg);
        }

        .article-card {
            max-width: 800px;
            margin: 0 auto;
            background-color: var(--secondary-bg);
            padding: 30px;
            border-radius: 10px;
            box-shadow: var(--card-shadow);
        }

        .article-card h3 {
            font-size: 22px;
            margin-bottom: 25px;
            color: var(--text-white);
        }

        .article-card p {
            margin-bottom: 15px;
            color: var(--text-gray);
            line-height: 1.9;
        }

        .article-card ul {
            margin-left: 20px;
            margin-bottom: 20px;
            color: var(--text-gray);
        }

        .article-card li {
            margin-bottom: 10px;
        }

        /* 优势介绍区域 */
        .advantages-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
            max-width: 1100px;
            margin: 0 auto;
        }

        .advantage-item {
            background-color: var(--secondary-bg);
            padding: 30px;
            border-radius: 10px;
            text-align: center;
            box-shadow: var(--card-shadow);
            transition: transform 0.3s;
        }

        .advantage-item:hover {
            transform: translateY(-5px);
        }

        .advantage-icon {
            font-size: 48px;
            margin-bottom: 20px;
            color: var(--accent-orange);
        }

        .advantage-item h4 {
            font-size: 20px;
            margin-bottom: 15px;
            color: var(--text-white);
        }

        .advantage-item p {
            color: var(--text-gray);
            line-height: 1.8;
        }

        /* 文档下载区域 */
        .docs-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 25px;
            max-width: 900px;
            margin: 0 auto;
        }

        .doc-item {
            background-color: var(--secondary-bg);
            padding: 25px;
            border-radius: 10px;
            display: flex;
            align-items: center;
            gap: 20px;
            box-shadow: var(--card-shadow);
            transition: transform 0.3s;
        }

        .doc-item:hover {
            transform: translateY(-3px);
        }

        .doc-icon {
            font-size: 36px;
            color: var(--accent-orange);
        }

        .doc-info {
            flex: 1;
        }

        .doc-info h4 {
            font-size: 18px;
            margin-bottom: 8px;
            color: var(--text-white);
        }

        .doc-info p {
            color: var(--text-gray);
            font-size: 14px;
            margin-bottom: 8px;
        }

        .doc-download-btn {
            background-color: var(--accent-orange);
            color: var(--text-white);
            border: none;
            padding: 8px 20px;
            border-radius: 5px;
            cursor: pointer;
            transition: background-color 0.3s;
        }

        .doc-download-btn:hover {
            background-color: #e55c00;
        }

        /* FAQ区域 */
        .faq-section {
            background-color: var(--secondary-bg);
        }

        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            background-color: var(--primary-bg);
            margin-bottom: 15px;
            border-radius: 8px;
            overflow: hidden;
            box-shadow: 0 2px 8px rgba(0,0,0,0.2);
        }

        .faq-question {
            width: 100%;
            background: none;
            border: none;
            text-align: left;
            padding: 20px;
            font-size: 16px;
            font-weight: 500;
            color: var(--text-white);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .faq-arrow {
            font-size: 20px;
            transition: transform 0.3s;
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s;
            padding: 0 20px;
            color: var(--text-gray);
            line-height: 1.8;
        }

        .faq-item.active .faq-answer {
            max-height: 200px;
            padding: 20px;
        }

        .faq-item.active .faq-arrow {
            transform: rotate(180deg);
        }

        /* 底部区域 */
        .footer {
            background-color: #111111;
            padding: 40px 0;
            color: var(--text-gray);
            text-align: center;
        }

        .footer-content {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 20px;
        }

        .footer-links {
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
            justify-content: center;
        }

        .footer-link {
            color: var(--text-gray);
            text-decoration: none;
            transition: color 0.3s;
        }

        .footer-link:hover { color: var(--accent-orange); }

        .copyright { font-size: 12px; }
        .links a {
            color: var(--text-gray);
            text-decoration: none;
    transition: color 0.3s;
            font-size: 12px;
            }
            a:hover{
                    color: var(--accent-orange);
                
            }
        /* 响应式设计 */
        @media (max-width: 768px) {
            .hero {
                padding: 100px 0 60px;
            }

            .hero h1 {
                font-size: 28px;
            }

            .hero p {
                font-size: 16px;
            }

            .download-bar {
                flex-direction: column;
                gap: 20px;
            }

            .section-title {
                font-size: 28px;
            }

            .nav {
                gap: 15px;
            }

            .advantages-grid,
            .docs-grid {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 480px) {
            .hero h1 {
                font-size: 24px;
            }

            .download-btn {
                width: 100%;
                padding: 15px;
            }

            .section-title {
                font-size: 24px;
            }

            .video-info h3,
            .article-card h3 {
                font-size: 20px;
            }
        }/* 6a42a8fbedbc9 */