/* DeepSeek 制作 */
        .video-player-inline{
            display: inline-block;
            margin: 10px;
            padding: 0;
            font-family: Arial, sans-serif;
            box-sizing: border-box;
            vertical-align: top;
            position: relative;
        }
        
        .video-player-container{
            max-width: 256px;        /* ビデオサイズ指定 */
            background-color: #000;
            overflow: hidden;
            position: relative;
            min-width: 200px;
            min-height: 200px;
            resize: both; /* リサイズ可能にする */
        }
        
        .video-player-element{
            width: 100%;
            height: 100%;
            display: block;
            cursor: pointer;
            object-fit: contain; /* アスペクト比を保ちながらコンテナに収める */
        }
        
        .video-player-controls{
            display: flex;
            justify-content: center;
            gap: 8px;
            padding: 10px;
            background-color: #fff;
            flex-wrap: wrap;
        }
        
        .video-player-button{
            border: none;
            padding: 8px 16px;
            border-radius: 4px;
            cursor: pointer;
            font-size: 14px;
            transition: all 0.2s;
            font-weight: bold;
            color: white;
            min-width: 80px;
            /* 立体感のあるボタン */
            box-shadow: 0 4px 8px rgba(0,0,0,0.2);
        }
        
        .video-player-button:active{
            transform: translateY(2px);
            box-shadow: 0 2px 4px rgba(0,0,0,0.2);
        }
        
        #videoPlayerPlayButton{
            background: linear-gradient(to bottom, #007bff, #0056b3);
        }
        
        #videoPlayerPlayButton:hover{
            background: linear-gradient(to bottom, #0056b3, #004085);
            transform: translateY(-2px);
            box-shadow: 0 6px 12px rgba(0,0,0,0.3);
        }
        
        #videoPlayerMuteButton{
            background: linear-gradient(to bottom, #28a745, #1e7e34);
        }
        
        #videoPlayerMuteButton:hover{
            background: linear-gradient(to bottom, #1e7e34, #155724);
            transform: translateY(-2px);
            box-shadow: 0 6px 12px rgba(0,0,0,0.3);
        }

        /* 再生アイコンのスタイル */
        .play-overlay{
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            display: flex;
            align-items: center;
            justify-content: center;
            pointer-events: none; /* クリックをビデオに通す */
            z-index: 10;
            transition: opacity 0.3s;
        }
        
        .play-icon{
            width: 60px;
            height: 60px;
            background-color: rgba(0, 0, 0, 0.7);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            opacity: 0.9;
            transition: transform 0.2s;
        }
        
        .play-icon:hover {
            transform: scale(1.1);
        }
        
        .play-icon::after{
            content: "";
            width: 0;
            height: 0;
            border-left: 20px solid white;
            border-top: 12px solid transparent;
            border-bottom: 12px solid transparent;
            margin-left: 5px;
        }
        
        .play-overlay.hidden {
            opacity: 0;
            pointer-events: none;
        }
        
        /* リサイズハンドルのカスタマイズ */
        .video-player-container::after {
            content: '';
            position: absolute;
            bottom: 5px;
            right: 5px;
            width: 15px;
            height: 15px;
            cursor: se-resize;
            background: linear-gradient(135deg, transparent 50%, #007bff 50%);
            z-index: 20;
            opacity: 0.6;
            transition: opacity 0.3s;
        }
        
        .video-player-container:hover::after {
            opacity: 1;
        }
        
        /* リサイズ中のガイドライン表示 */
        .resize-guide {
            position: fixed;
            border: 2px dashed #007bff;
            pointer-events: none;
            z-index: 1000;
            display: none;
        }

        @media (max-width: 768px) {
            .video-player-inline{
                margin: 5px;
            }
            
            .video-player-container{
                width: 100%;
                max-width: 400px;
            }
            
            .video-player-button{
                padding: 10px 20px;
                font-size: 14px;
                min-width: 90px;
            }
            
            .play-icon{
                width: 50px;
                height: 50px;
            }
            
            .play-icon::after{
                border-left: 16px solid white;
                border-top: 10px solid transparent;
                border-bottom: 10px solid transparent;
                margin-left: 4px;
            }
        }

        @media (max-width: 480px) {
            .video-player-container{
                max-width: 300px;
            }
            
            .video-player-controls{
                padding: 12px;
                gap: 8px;
            }
            
            .video-player-button{
                padding: 8px 16px;
                font-size: 14px;
                min-width: 80px;
                border-radius: 4px;
            }
            
            .play-icon{
                width: 40px;
                height: 40px;
            }
            
            .play-icon::after{
                border-left: 14px solid white;
                border-top: 8px solid transparent;
                border-bottom: 8px solid transparent;
                margin-left: 3px;
            }
            
            /* モバイルではリサイズ機能を制限 */
            .video-player-container {
                resize: none;
            }
            
            .video-player-container::after {
                display: none;
            }
        }