.index-position { background: rgba(0, 0, 0, 0.5); height: 88rpx; position: absolute; top: 0; width: 100%; font-family: PingFangSC-Semibold; font-size: 30rpx; color: #FFFFFF; letter-spacing: 0.75rpx; z-index: 9; line-height: 88rpx; padding: 0 30rpx; }