#btnbj{
            left:572px;
        }
      #changeBV {
        left: 600px;
        top: 185px;
        background-color: rgba(255, 255, 255, 0.15);
        z-index: 5;
      }

      .vbt {
        border-radius: 32px;
        display: flex;
        justify-content: center;
        /* 水平居中 */
        align-items: center;
        /* 垂直居中 */
        margin: 0 5px;
        height: 32px;
        width: 32px;
        text-align: center;
        line-height: 32px;
        position: absolute;
        transition: 0.1s;
      }

      .vbt:hover {
        transition: 0.1s;
        transform: scale(1.1);
      }

      .vbt i:hover {
        color: white;
      }

      .vbt i {
        display: block;
        font-size: 23px;
        color: rgba(255, 255, 255, 0.5);
      }


#bgVideo,
#bgVideo1 {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  object-fit: cover;
  z-index: -1;
}




      .hidden {
        opacity: 0;
      }

      #sence {
        /*z-index: -2;*/
        display: none;
      }

      /*body {
                z-index: -2;
            }*/
      #low-bg {
        background-color: #000;
        /* background-image: url(assets/video/video1.webp) !important; */
      }

      @media (max-width: 780px) {
        button#changeBV {
          left: 80%;
        }
        img#btnbj {
          left: 73.5%;
        }

        source {
          background-attachment: fixed;
        }
      }
      
      
       .ph-img-center {
        display: flex;
        align-items: center;
      }

      .ph-image {
        width: 30px;
        height: 30px;
        /*margin-right: 10px;*/
      }

      #other {
        display: none;
      }
      .rotateStyle {
        animation: rotate 0.5s forwards;
      }
      @keyframes rotate {
        0% {
          transform: rotate(0deg);
        }
        50% {
          transform: rotate(180deg);
        }
        100% {
          transform: rotate(0deg);
        }
      }
      
      /*聊天室*/
      
      .chat-button {
        position: fixed;
        bottom: 0;
        right: 0;
        width: 35px;
        height: 120px;
        background: rgba(0, 0, 0, 0.79);
        color: white;
        border: none;
        cursor: pointer;
        display: flex;
        align-items: center;
        justify-content: center;
        z-index: 1000;
        border-radius: 12px 0 0 12px;
        text-orientation: mixed;
        font-size: 16px;
        padding: 10px 5px;
        transition: all 0.3s ease-in-out;
        opacity: 1;
      }
      .chat-button span {
        position: absolute;
        width: 120px; /* 设置为button的高度 */
        text-align: center;
        transform: rotate(-90deg);
      }

      .chat-button.hide {
        opacity: 0;
        transform: translateX(40px);
      }

      .chat-container {
        position: fixed;
        top: 0;
        right: -400px;
        width: 400px;
        height: 100vh;
        z-index: 999;
        transition: right 0.3s ease-in-out;
        display: block;
      }

      .chat-container.show {
        right: 0;
      }

      .chat-iframe {
        width: 100%;
        height: 100vh;
        border: none;
        background: #1e1e1e;
      }

      .CboxButton {
        position: fixed;
        z-index: 9999;
        bottom: 0;
        height: 30px;
        width: 30px;
        box-sizing: border-box;
        text-align: center;
        cursor: pointer;
        background: rgba(0, 0, 0, 0.79);
        color: #fff;
        line-height: 30px;
        transition: all 0.3s ease-in-out;
        right: 400px;
        padding: 0;
        border: none;
        border-radius: 15px 0 0 0;
        opacity: 0;
        visibility: hidden;
      }

      .CboxButton.hide {
        right: 0;
      }

      .CboxCloseBtn {
        display: block;
        width: 100%;
        height: 100%;
        transition: transform 0.3s ease-in-out;
      }

      .CboxButton.hide .CboxCloseBtn {
        transform: rotate(180deg);
      }

      /* 添加调整手柄样式 */
      .resize-handle {
        position: absolute;
        left: 0;
        top: 0;
        bottom: 0;
        width: 5px;
        cursor: ew-resize;
        background-color: transparent;
        transition: background-color 0.2s;
      }

      .resize-handle:hover {
        background-color: rgba(255, 255, 255, 0.1);
      }

      .resize-handle.dragging {
        background-color: rgba(255, 255, 255, 0.2);
      }