* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'PingFang SC', 'Microsoft YaHei', sans-serif;
        }
        
        body {
            background-color: #f5f5f5;
            color: #333;
            line-height: 1.6;
        }
        
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 15px;
        }
        
        /* 头部样式 */
        header {
            background-color: #fff;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
        }
        
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 0;
        }
        
        .logo {
            font-size: 24px;
            font-weight: bold;
            color: #ff4757;
        }
        
        .search-box {
            flex: 1;
            max-width: 500px;
            margin: 0 20px;
            position: relative;
        }
        
        .search-box input {
            width: 100%;
            padding: 10px 15px;
            border: 1px solid #ddd;
            border-radius: 20px;
            outline: none;
            font-size: 14px;
        }
        
        .search-box button {
            position: absolute;
            right: 10px;
            top: 50%;
            transform: translateY(-50%);
            background: none;
            border: none;
            color: #666;
            cursor: pointer;
        }
        
        /* 导航样式 */
        nav {
            background-color: #fff;
            border-top: 1px solid #eee;
        }
        
        .nav-list {
            display: flex;
            list-style: none;
            overflow-x: auto;
            padding: 10px 0;
        }
        
        .nav-list li {
            margin-right: 20px;
            white-space: nowrap;
        }
        
        .nav-list a {
            text-decoration: none;
            color: #666;
            padding: 5px 10px;
            border-radius: 15px;
            transition: all 0.3s;
        }
        
        .nav-list a.active,
        .nav-list a:hover {
            background-color: #ff4757;
            color: white;
        }
        
        /* 主要内容区域 */
        main {
            padding: 20px 0;
        }
        
        .section-title {
            font-size: 20px;
            margin: 20px 0 15px;
            padding-left: 10px;
            border-left: 4px solid #ff4757;
        }
        
        /* 视频网格 */
        .video-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 20px;
        }
        
        .video-card {
            background-color: #fff;
            border-radius: 8px;
            overflow: hidden;
            box-shadow: 0 3px 10px rgba(0, 0, 0, 0.1);
            transition: transform 0.3s;
        }
        
        .video-card:hover {
            transform: translateY(-5px);
        }
        
        .video-thumbnail {
            position: relative;
            width: 100%;
            height: 0;
            padding-bottom: 56.25%; /* 16:9 比例 */
            overflow: hidden;
        }
        
        .video-thumbnail img {
            position: absolute;
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        
        .video-duration {
            position: absolute;
            bottom: 10px;
            right: 10px;
            background-color: rgba(0, 0, 0, 0.7);
            color: white;
            padding: 2px 6px;
            border-radius: 4px;
            font-size: 12px;
        }
        
        .video-info {
            padding: 15px;
        }
        
        .video-title {
            font-size: 16px;
            font-weight: bold;
            margin-bottom: 8px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        
        .video-meta {
            display: flex;
            justify-content: space-between;
            color: #999;
            font-size: 13px;
        }
        
        .video-meta a {
            color: #666;
            text-decoration: none;
        }
        
        .video-meta a:hover {
            color: #ff4757;
        }
        
        /* 播放页样式 */
        .video-player-container {
            background-color: #000;
            border-radius: 8px;
            overflow: hidden;
            margin-bottom: 20px;
        }
        
        .video-player {
            width: 100%;
            height: auto;
        }
        
        .video-detail {
            background-color: #fff;
            border-radius: 8px;
            padding: 20px;
            margin-bottom: 20px;
        }
        
        .video-detail-title {
            font-size: 22px;
            margin-bottom: 10px;
        }
        
        .video-stats {
            display: flex;
            color: #999;
            margin-bottom: 15px;
            font-size: 14px;
        }
        
        .video-stats span {
            margin-right: 15px;
        }
        
        .video-stats a {
            color: #666;
            text-decoration: underline;
        }
        
        .video-stats a:hover {
            color: #ff4757;
        }
        
        .video-description {
            line-height: 1.8;
            color: #555;
        }
        
        .video-actions {
            display: flex;
            margin: 15px 0;
        }
        
        .action-btn {
            display: flex;
            align-items: center;
            margin-right: 20px;
            color: #666;
            cursor: pointer;
            background: none;
            border: none;
            font-size: 14px;
        }
        
        .action-btn i {
            margin-right: 5px;
            font-size: 18px;
        }
        
        .related-videos {
            margin-top: 30px;
        }
        
        .pagination {
            display: flex;
            justify-content: center;
            gap: 10px;
            margin-top: 20px;
        }
        
        .page-btn {
            padding: 8px 15px;
            border: 1px solid #dee2e6;
            border-radius: 4px;
            background: white;
            cursor: pointer;
            transition: background 0.2s;
            color: #333;
            text-decoration: none;
        }
        
        .page-btn:hover {
            background: #3498db;
            color: white;
        }
        
        .page-btn.active {
            background: #3498db;
            color: white;
            border-color: #3498db;
        }
        
        /* 底部样式 */
        footer {
            background-color: #fff;
            padding: 30px 0;
            margin-top: 40px;
            border-top: 1px solid #eee;
        }
        
        .copyright {
            text-align: center;
            margin-top: 20px;
            padding-top: 20px;
            border-top: 1px solid #eee;
            color: #999;
            font-size: 14px;
        }
        
        /* 响应式设计 */
        @media (max-width: 768px) {
            .header-content {
                flex-direction: column;
                align-items: flex-start;
            }
            
            .search-box {
                max-width: 100%;
                margin: 15px 0;
            }
            
            .video-grid {
                grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
            }
        }
        
        @media (max-width: 480px) {
            .video-grid {
                grid-template-columns: 1fr;
            }
        }
        
        /* 页面切换样式 */
        .page {
            display: none;
        }
        
        .page.active {
            display: block;
        }
        
        /* 视频播放器样式 */
        video {
            width: 100%;
            height: auto;
            max-height: 70vh;
            outline: none;
        }