.ab-list__item>p{
display: inline;
}
.haicot>div:first-child{
    position: sticky;
    top: 0;
}

.container {
            max-width: 1200px;
            margin: 0 auto;
            background: white;
            border-radius: 8px;
            overflow: hidden;
            box-shadow: 0 2px 8px rgba(0,0,0,0.1);
        }
        .video-wrapper {
            position: relative;
            padding-bottom: 56.25%; /* 16:9 */
            height: 0;
            background: #000;
        }
        .video-wrapper iframe {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            border: none;
        }
        .content {
            padding: 30px;
        }
        h1 {
            font-size: 24px;
            margin-bottom: 20px;
            color: #333;
        }
        .timeline {
            margin-top: 30px;
        }
        .timeline-item {
            margin-bottom: 15px;
            padding: 15px;
            background: #f8f9fa;
            border-radius: 6px;
            border-left: 4px solid #007bff;
            cursor: pointer;
            transition: all 0.2s;
        }
        .timeline-item:hover {
            background: #e9ecef;
            transform: translateX(5px);
        }
        .timeline-item.active {
            background: #e7f3ff;
            border-left-color: #0056b3;
        }
        .timeline-title {
            font-weight: 600;
            color: #333;
            margin-bottom: 5px;
        }
        .timeline-time {
            font-size: 12px;
            color: #666;
            font-family: 'Courier New', monospace;
            background: #fff;
            padding: 2px 8px;
            border-radius: 3px;
            display: inline-block;
            margin-bottom: 5px;
        }
        .timeline-desc {
            font-size: 14px;
            color: #666;
            line-height: 1.5;
        }