.active-word{color:#fff;background-color:rgba(136,93,253,1);font-size:18px;padding:6px;border-radius:12px}.sentence-item{background-color:rgba(136,93,253,.12);border-radius:12px}.content-wrap{max-width:1200px;margin:0 auto}.text-title{font-size:18px;padding:18px 0}.back-bottom{width:34px;height:34px}@media (min-width:0px) and (max-width:768px){.audio-btn-wrap{.pr-8{padding-right:13px}}.text-title{font-size:14px;padding:10px 0 18px}}