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.word-box .play-btn{width:calc(100vw/1438*127);height:calc(100vw/1438*42);background:rgba(255,211,174,.6);border-radius:calc(100vw/1438*21);font-weight:600;font-size:calc(100vw/1438*24);color:#ff5100;display:-webkit-box;display:-ms-flexbox;display:flex;-webkit-box-align:center;-ms-flex-align:center;align-items:center;-webkit-box-pack:center;-ms-flex-pack:center;justify-content:center;margin:calc(100vw/1438*40) 0 calc(100vw/1438*52);-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none}.tm-read-exercises .flip-cards-page .card-list .item .word-box .word{font-weight:600;font-size:calc(100vw/1438*38);color:#8a4f37;text-align:center}.tm-read-exercises .flip-cards-page .card-list .item .word-box .word-split{display:-webkit-box;display:-ms-flexbox;display:flex;-webkit-box-align:center;-ms-flex-align:center;align-items:center;-webkit-box-pack:center;-ms-flex-pack:center;justify-content:center}.tm-read-exercises .flip-cards-page .card-list .item .word-box 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.card-box{-webkit-box-orient:vertical;-webkit-box-direction:normal;-ms-flex-direction:column;flex-direction:column}.tm-read-exercises .flip-cards-page .card-list .item .card-box .card{width:calc(100vw/1438*330);height:calc(100vw/1438*458);position:relative;-webkit-perspective:26.666667rem;perspective:26.666667rem}.tm-read-exercises .flip-cards-page .card-list .item .card-box:after{content:"";width:calc(100vw/1438*330);height:calc(100vw/1438*22);background:rgba(0,0,0,.1);border-radius:50%;margin-top:calc(100vw/1438*25)}.tm-read-exercises .flip-cards-page .card-list .item .text{width:calc(100vw/1438*42);height:calc(100vw/1438*140);background:hsla(0,0%,100%,.7);-webkit-box-shadow:0 .106667rem .16rem 0 rgba(255,150,62,.5);box-shadow:0 .106667rem .16rem 0 rgba(255,150,62,.5);border-radius:calc(100vw/1438*22);border:.026667rem solid #fff;font-size:calc(100vw/1438*28);font-weight:600;color:#ff953e;display:-webkit-box;display:-ms-flexbox;display:flex;-webkit-box-orient:vertical;-webkit-box-direction:normal;-ms-flex-direction:column;flex-direction:column;-webkit-box-pack:center;-ms-flex-pack:center;justify-content:center;-webkit-box-align:center;-ms-flex-align:center;align-items:center;margin-top:calc(100vw/1438*52)}.tm-read-exercises .flip-cards-page .card-list .item .text i{line-height:calc(100vw/1438*40)}.tm-read-exercises .flip-cards-page .xuanze{padding:0 calc(100vw/1438*80) calc(100vh/688*30)}.tm-read-exercises .loading-overlay{position:fixed;top:0;left:0;width:100vw;height:100vh;background:rgba(0,0,0,.4);display:-webkit-box;display:-ms-flexbox;display:flex;-webkit-box-orient:vertical;-webkit-box-direction:normal;-ms-flex-direction:column;flex-direction:column;-webkit-box-pack:center;-ms-flex-pack:center;justify-content:center;-webkit-box-align:center;-ms-flex-align:center;align-items:center;z-index:1000}.tm-read-exercises .loading-overlay .loading-spinner{width:calc(100vw/1438*80);height:calc(100vw/1438*80);border:.106667rem solid hsla(0,0%,100%,.3);border-top-color:#ff9f4b;border-radius:50%;-webkit-animation:spin-tm-read-exercises .8s linear infinite;animation:spin-tm-read-exercises .8s linear infinite}@-webkit-keyframes spin-tm-read-exercises{to{-webkit-transform:rotate(1turn);transform:rotate(1turn)}}@keyframes spin-tm-read-exercises{to{-webkit-transform:rotate(1turn);transform:rotate(1turn)}}.tm-read-exercises .loading-overlay .loading-text{margin-top:calc(100vw/1438*20);font-size:calc(100vw/1438*24);color:#fff;font-weight:500}