body {
      margin: 0;
      background: #ffffff00;
      display: flex;
      justify-content: center;
      align-items: center;
      height: 100vh;
    }

    .player {
      position: relative;
      width: 800px;
      max-width: 120%;
      background: #ffffff00;
      overflow: hidden;
      border-radius: 12px;
    }

    video {
      width: 100%;
      display: block;
    }

    /* 中间播放暂停按钮 */
    .center-btn {
      position: absolute;
      top: 50%;
      left: 50%;
      transform: translate(-50%, -50%);
      width: 80px;
      height: 80px;
      border-radius: 50%;
      background: rgba(255, 140, 0, 0.85);
      display: flex;
      justify-content: center;
      align-items: center;
      cursor: pointer;
      transition: opacity 0.3s, transform 0.2s;
      opacity: 0;
      pointer-events: none; /* 默认不挡鼠标 */
    }
    .player:hover .center-btn {
      opacity: 1;
      pointer-events: auto;
    }
    .center-btn:hover {
      transform: translate(-50%, -50%) scale(1.1);
    }
    .center-btn svg {
      fill: white;
      width: 36px;
      height: 36px;
    }

    /* 控制栏 */
    .controls {
      position: absolute;
      bottom: 0;
      left: 0;
      width: 100%;
      background: linear-gradient(to top, rgba(0,0,0,0.7), transparent);
      padding: 10px;
      box-sizing: border-box;
      display: flex;
      align-items: center;
      gap: 12px;
    }

    /* 时间 */
    .time {
      color: #fff;
      font-size: 14px;
      font-family: monospace;
      white-space: nowrap;
    }

    /* 进度条容器 */
    .progress-container {
      flex: 1;
      height: 6px;
      background: rgba(255, 255, 255, 0.25);
      cursor: pointer;
      border-radius: 3px;
      position: relative;
    }

    /* 已播放部分 */
    .progress {
      height: 100%;
      width: 0%;
      background: linear-gradient(90deg, orange, orangered);
      border-radius: 3px;
      position: relative;
    }

    /* 拖动圆圈 */
    .handle {
      position: absolute;
      right: 0;
      top: 50%;
      transform: translate(50%, -50%);
      width: 16px;
      height: 16px;
      border-radius: 50%;
      background: linear-gradient(135deg, orange, orangered);
      border: 2px solid white;
      display: flex;
      justify-content: center;
      align-items: center;
    }

    /* 加载动画 */
    .loading {
      border: 2px solid white;
      border-top: 2px solid transparent;
      border-radius: 50%;
      width: 12px;
      height: 12px;
      animation: spin 1s linear infinite;
    }

    @keyframes spin {
      from { transform: rotate(0deg); }
      to { transform: rotate(360deg); }
    }