/* 基本样式 */
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            background-image: url('/bj/1.png'); /* 设置背景图 */
            background-size: cover;
            background-position: center;
            background-attachment: fixed;
            background-color: rgba(0, 0, 0, 0.4); /* 背景颜色的透明度 */
            color: #333;
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            no-repeat center center scroll;
            opacity:0.7;
            filter:alpha(opacity=70);
        }

        header {
            background-color: rgba(58, 58, 58, 0.8); /* 透明度设置 */
            color: white;
            padding: 20px;
            text-align: center;
            font-size: 1.5rem;
        }

        h1 {
            font-size: 2.5rem;
            margin-bottom: 10px;
        }

        /* 导航栏样式 */
        nav {
            background-color: #007bff;
            padding: 10px;
            display: flex;
            justify-content: center;
            gap: 30px;
            flex-wrap: wrap;
        }

        nav a {
            color: white;
            font-size: 1.2rem;
            text-decoration: none;
            font-weight: bold;
            margin: 5px;
        }

        nav a:hover {
            text-decoration: underline;
        }

        /* 页面容器 */
        .container {
            width: 100%;
            margin: 0 auto;
            padding: 1px;
        }

        .section {
            background-color: white;
            border-radius: 8px;
            margin-bottom: 20px;
            padding: 20px;
            box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
        }

        .section h2 {
            font-size: 1.8rem;
            color: #444;
            margin-bottom: 10px;
        }

        .section p {
            font-size: 1rem;
            line-height: 1.6;
            color: #666;
        }

        .status {
            font-weight: bold;
            color: red;
        }

        a {
            color: #007bff;
            text-decoration: none;
        }

        a:hover {
            text-decoration: underline;
        }

        .file-link {
            color: #007bff;
            font-weight: bold;
        }

        /* 按钮样式 */
        .btn {
            background-color: #28a745;
            color: white;
            padding: 10px 20px;
            border-radius: 5px;
            text-align: center;
            display: inline-block;
            font-weight: bold;
            text-decoration: none;
        }

        .btn:hover {
            background-color: #218838;
        }

        .card {
            display: flex;
            justify-content: space-between;
            align-items: center;
            background-color: #f8f9fa;
            padding: 15px;
            border-radius: 8px;
            box-shadow: 0 4px 8px rgba(0, 0, 0, 0.05);
        }

        .card .content {
            flex: 1;
        }

        .card .links a {
            display: block;
            color: #007bff;
            margin-bottom: 5px;
            font-size: 1rem;
        }

        .card .links a:hover {
            text-decoration: underline;
        }

        /* 复制按钮样式 */
        .copy-btn {
            background-color: #007bff;
            color: white;
            padding: 5px 10px;
            margin-left: 10px;
            border: none;
            border-radius: 5px;
            cursor: pointer;
        }

        .copy-btn:hover {
            background-color: #0056b3;
        }

        /* 视频教程部分 */
        .video-section {
            margin-top: 0.4px;
            background-color: #fff;
            border-radius: 8px;
            padding: 20px;
            box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
        }

        .video-section h2 {
            font-size: 1.8rem;
            color: #444;
            margin-bottom: 10px;
        }

        .video-container {
            display: flex;
            justify-content: center;
            align-items: center;
            margin-top: 20px;
        }

        .video-container iframe {
            border-radius: 8px;
            box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
        }

        .video-list {
            margin-bottom: 20px;
        }

        .video-list button {
            --btn-padding: 10px 20px; /* 上下10px，左右20px */
            --btn-font-size: 1rem;
            background-color: #007bff;
            color: white;
            padding: var(--btn-padding);
            border-radius: 5px;
            border: none;
            font-size: var(--btn-font-size);
            margin-right: 15px;
            margin-bottom: 10px;
            cursor: pointer;
        }

        .video-list button:hover {
            background-color: #0056b3;
        }

        /* 响应式布局 */
        @media (max-width: 768px) {
            .container {
                width: 95%;
            }

            .card {
                flex-direction: column;
                align-items: flex-start;
            }

            .video-container iframe {
                width: 100%;
                height: 280px;
            }

            nav {
                flex-direction: column;
                gap: 10px;
            }

            nav a {
                font-size: 1rem;
            }

            .btn {
                padding: 8px 16px;
                font-size: 1rem;
            }

            .copy-btn {
                padding: 4px 8px;
                font-size: 0.9rem;
            }
        }
        
        /* 默认导航栏样式 */
nav a {
    padding: 10px 15px;
    text-decoration: none;
    color: #333;
    display: inline-block;
    transition: all 0.3s ease;
}

/* 高亮效果 */
nav a.active {
    border: 2px solid #333;
    border-radius: 5px;
    background-color: #f0f0f0;
}



/* 确保导航高亮在蓝色导航上可见 — 推荐放在 css 的最底部 */
nav a {
    color: #ffffff; /* 保证默认文字白色 */
}

/* 高亮效果（更明显）*/
nav a.active {
    border: 2px solid #ffffff;
    border-radius: 6px;
    background-color: rgba(255,255,255,0.12);
    padding: 8px 13px; /* 保持内边距，避免边框挤压布局 */
    box-shadow: 0 2px 6px rgba(0,0,0,0.15);
    color: #ffffff;
}

/* 页脚部分*/
.site-footer {
    text-align: center;       /* 文本居中 */
    padding: 10px 0;          /* 上下内边距 */
    background-color: #f8f8f8; /* 背景颜色，可根据需要修改 */
    color: rgba(255, 0, 0, 0.5);              /* 文字颜色 */
    font-size: 14px;          /* 字号 */
}