/* 视频弹窗专用样式 - 不依赖原有组件，干净且现代 */
        .video-modal-mask {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-color: rgba(0, 0, 0, 0.85);
            z-index: 10000;
            display: none;
            justify-content: center;
            align-items: center;
            backdrop-filter: blur(3px);
            transition: all 0.3s ease;
            font-family: system-ui, -apple-system, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
        }
        .video-modal-container {
            position: relative;
            width: 90%;
            max-width: 1000px;
            background: #000;
            border-radius: 20px;
            overflow: hidden;
            box-shadow: 0 25px 50px -12px rgba(0,0,0,0.5);
            animation: modalFadeIn 0.3s cubic-bezier(0.2, 0.9, 0.4, 1.1);
        }
        @keyframes modalFadeIn {
            from {
                opacity: 0;
                transform: scale(0.96);
            }
            to {
                opacity: 1;
                transform: scale(1);
            }
        }
        .video-close-btn {
            position: absolute;
            top: 12px;
            right: 16px;
            width: 36px;
            height: 36px;
            background: rgba(0,0,0,0.7);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            z-index: 10001;
            transition: 0.2s;
            border: 1px solid rgba(255,255,255,0.3);
            color: white;
            font-size: 26px;
            font-weight: 300;
            line-height: 1;
            backdrop-filter: blur(4px);
        }
        .video-close-btn:hover {
            background: #c0392b;
            transform: scale(1.05);
            border-color: transparent;
        }
        .video-wrapper {
            position: relative;
            width: 100%;
            background: #000;
            display: flex;
            justify-content: center;
            align-items: center;
        }
        .video-wrapper video {
            width: 100%;
            height: auto;
            max-height: 85vh;
            display: block;
            outline: none;
        }
        /* 优雅占位样式，保证视频控件舒适 */
        .video-wrapper iframe {
            width: 100%;
            height: 56.25vw;  /* 16:9 比例适配 */
            max-height: 85vh;
            border: none;
        }
        @media (min-width: 1024px) {
            .video-wrapper iframe {
                height: 562px;
            }
            .video-wrapper video {
                max-height: 80vh;
            }
        }
        @media (max-width: 768px) {
            .video-modal-container {
                width: 95%;
                border-radius: 16px;
            }
            .video-close-btn {
                top: 8px;
                right: 12px;
                width: 32px;
                height: 32px;
                font-size: 24px;
            }
        }
        /* 防止滚动穿透 */
        body.video-modal-open {
            overflow: hidden;
            position: fixed;
            width: 100%;
        }
        /* 让右边图片增加点击手感和提示 */
        .in_about_r .play-video-btn {
            cursor: pointer;
            display: inline-block;
            transition: transform 0.2s, box-shadow 0.2s;
            border-radius: 12px;
            overflow: hidden;
        }
        .in_about_r .play-video-btn:hover {
            transform: scale(1.01);
            box-shadow: 0 12px 24px rgba(0,0,0,0.15);
        }
        .in_about_r img {
            transition: all 0.3s;
            display: block;
        }
        /* 避免与原有弹窗冲突，独立的最高层 */