.tw-ico{-webkit-box-sizing:content-box;box-sizing:content-box;padding:.02667rem;display:inline-block;vertical-align:middle;background-image:url(img/icons.dacd53d0.png);background-origin:padding-box;background-repeat:no-repeat}.tw-ico.x120.xraudio{background-position:0 0}.tw-ico.x120.xraudio,.tw-ico.x120.xrexcel{width:3.2rem;height:2.4rem;background-size:17.97333rem 17.97333rem}.tw-ico.x120.xrexcel{background-position:-3.46667rem 0}.tw-ico.x120.xrpdf{background-position:-6.93333rem -2.66667rem}.tw-ico.x120.xrpdf,.tw-ico.x120.xrppt{width:3.2rem;height:2.4rem;background-size:17.97333rem 17.97333rem}.tw-ico.x120.xrppt{background-position:0 -2.66667rem}.tw-ico.x120.xrvideo{background-position:-3.46667rem -2.66667rem}.tw-ico.x120.xrvideo,.tw-ico.x120.xrword{width:3.2rem;height:2.4rem;background-size:17.97333rem 17.97333rem}.tw-ico.x120.xrword{background-position:-6.93333rem 0}.tw-ico.x24.xraudio{background-position:-3.62667rem -17.33333rem}.tw-ico.x24.xraudio,.tw-ico.x24.xrcourseware{width:.64rem;height:.64rem;background-size:17.97333rem 17.97333rem}.tw-ico.x24.xrcourseware{background-position:-2.72rem -17.33333rem}.tw-ico.x24.xrdir{background-position:-1.81333rem -17.33333rem}.tw-ico.x24.xrdir,.tw-ico.x24.xredue{width:.64rem;height:.64rem;background-size:17.97333rem 17.97333rem}.tw-ico.x24.xredue{background-position:-.90667rem -17.33333rem}.tw-ico.x24.xrepub{background-position:0 -17.33333rem}.tw-ico.x24.xrepub,.tw-ico.x24.xrepub2{width:.64rem;height:.64rem;background-size:17.97333rem 17.97333rem}.tw-ico.x24.xrepub2{background-position:-17.33333rem -16.32rem}.tw-ico.x24.xrepub3{background-position:-17.33333rem -15.41333rem}.tw-ico.x24.xrepub3,.tw-ico.x24.xrexcel{width:.64rem;height:.64rem;background-size:17.97333rem 17.97333rem}.tw-ico.x24.xrexcel{background-position:-17.33333rem -14.50667rem}.tw-ico.x24.xrflash{background-position:-17.33333rem -13.6rem}.tw-ico.x24.xrflash,.tw-ico.x24.xrformula{width:.64rem;height:.64rem;background-size:17.97333rem 17.97333rem}.tw-ico.x24.xrformula{background-position:-17.33333rem -12.69333rem}.tw-ico.x24.xrgoodteaching{background-position:-17.33333rem -11.78667rem}.tw-ico.x24.xrgoodteaching,.tw-ico.x24.xrh5{width:.64rem;height:.64rem;background-size:17.97333rem 17.97333rem}.tw-ico.x24.xrh5{background-position:-17.33333rem -10.88rem}.tw-ico.x24.xrimage{background-position:-17.33333rem -9.97333rem}.tw-ico.x24.xrimage,.tw-ico.x24.xrnet{width:.64rem;height:.64rem;background-size:17.97333rem 17.97333rem}.tw-ico.x24.xrnet{background-position:-17.33333rem -9.06667rem}.tw-ico.x24.xrotcase{background-position:-17.33333rem -8.16rem}.tw-ico.x24.xrotcase,.tw-ico.x24.xrother{width:.64rem;height:.64rem;background-size:17.97333rem 17.97333rem}.tw-ico.x24.xrother{background-position:-17.33333rem -7.25333rem}.tw-ico.x24.xrpaper{background-position:-17.33333rem -6.34667rem}.tw-ico.x24.xrpaper,.tw-ico.x24.xrpdf{width:.64rem;height:.64rem;background-size:17.97333rem 17.97333rem}.tw-ico.x24.xrpdf{background-position:-17.33333rem -5.44rem}.tw-ico.x24.xrpformula{background-position:-9.33333rem -5.33333rem}.tw-ico.x24.xrpformula,.tw-ico.x24.xrppt{width:.64rem;height:.64rem;background-size:17.97333rem 17.97333rem}.tw-ico.x24.xrppt{background-position:-17.33333rem -3.62667rem}.tw-ico.x24.xrquestion{background-position:-17.33333rem -2.72rem}.tw-ico.x24.xrquestion,.tw-ico.x24.xrteachcase{width:.64rem;height:.64rem;background-size:17.97333rem 17.97333rem}.tw-ico.x24.xrteachcase{background-position:-17.33333rem -1.81333rem}.tw-ico.x24.xrteachtool{background-position:-17.33333rem -.90667rem}.tw-ico.x24.xrteachtool,.tw-ico.x24.xrtext{width:.64rem;height:.64rem;background-size:17.97333rem 17.97333rem}.tw-ico.x24.xrtext{background-position:-17.33333rem 0}.tw-ico.x24.xrvideo{background-position:-15.68rem -16rem}.tw-ico.x24.xrvideo,.tw-ico.x24.xrword{width:.64rem;height:.64rem;background-size:17.97333rem 17.97333rem}.tw-ico.x24.xrword{background-position:-14.77333rem -16rem}.tw-ico.x24.xrxml{background-position:-13.86667rem -16rem}.tw-ico.x24.xrxml,.tw-ico.x24.xrzip{width:.64rem;height:.64rem;background-size:17.97333rem 17.97333rem}.tw-ico.x24.xrzip{background-position:-12.96rem -16rem}.tw-ico.x24.xtdiscuss{background-position:-12.05333rem -16rem}.tw-ico.x24.xtdiscuss,.tw-ico.x24.xtdrawing{width:.64rem;height:.64rem;background-size:17.97333rem 17.97333rem}.tw-ico.x24.xtdrawing{background-position:-11.14667rem -16rem}.tw-ico.x24.xtgame{background-position:-10.24rem -16rem}.tw-ico.x24.xtgame,.tw-ico.x24.xthomework{width:.64rem;height:.64rem;background-size:17.97333rem 17.97333rem}.tw-ico.x24.xthomework{background-position:-9.33333rem -16rem}.tw-ico.x24.xtmicroclass{background-position:-14.93333rem -12.8rem}.tw-ico.x24.xtmicroclass,.tw-ico.x24.xtmind{width:.64rem;height:.64rem;background-size:17.97333rem 17.97333rem}.tw-ico.x24.xtmind{background-position:-13.06667rem -11.84rem}.tw-ico.x24.xtother{background-position:-13.06667rem -10.93333rem}.tw-ico.x24.xtother,.tw-ico.x24.xtpractise{width:.64rem;height:.64rem;background-size:17.97333rem 17.97333rem}.tw-ico.x24.xtpractise{background-position:-11.2rem -9.97333rem}.tw-ico.x24.xtpreparation{background-position:-11.2rem -9.06667rem}.tw-ico.x24.xtpreparation,.tw-ico.x24.xtresource{width:.64rem;height:.64rem;background-size:17.97333rem 17.97333rem}.tw-ico.x24.xtresource{background-position:-9.33333rem -8.10667rem}.tw-ico.x24.xttest{background-position:-9.33333rem -7.2rem}.tw-ico.x24.xttest,.tw-ico.x24.xtvote{width:.64rem;height:.64rem;background-size:17.97333rem 17.97333rem}.tw-ico.x24.xtvote{background-position:-17.33333rem -4.53333rem}.tw-ico.x24.xtwork{width:.64rem;height:.64rem;background-position:-9.33333rem -6.24rem;background-size:17.97333rem 17.97333rem}.tw-ico.x40.xraudio{background-position:-14.13333rem -11.2rem}.tw-ico.x40.xraudio,.tw-ico.x40.xrcourseware{width:1.06667rem;height:1.06667rem;background-size:17.97333rem 17.97333rem}.tw-ico.x40.xrcourseware{background-position:-12.26667rem -9.33333rem}.tw-ico.x40.xrdir{background-position:-10.4rem -7.46667rem}.tw-ico.x40.xrdir,.tw-ico.x40.xredue{width:1.06667rem;height:1.06667rem;background-size:17.97333rem 17.97333rem}.tw-ico.x40.xredue{background-position:-5.6rem -12.8rem}.tw-ico.x40.xrepub{background-position:-6.93333rem -12.8rem}.tw-ico.x40.xrepub,.tw-ico.x40.xrepub2{width:1.06667rem;height:1.06667rem;background-size:17.97333rem 17.97333rem}.tw-ico.x40.xrepub2{background-position:-8.26667rem -12.8rem}.tw-ico.x40.xrepub3{background-position:-9.6rem -12.8rem}.tw-ico.x40.xrepub3,.tw-ico.x40.xrexcel{width:1.06667rem;height:1.06667rem;background-size:17.97333rem 17.97333rem}.tw-ico.x40.xrexcel{background-position:-10.93333rem -12.8rem}.tw-ico.x40.xrflash{background-position:-12.26667rem -12.8rem}.tw-ico.x40.xrflash,.tw-ico.x40.xrformula{width:1.06667rem;height:1.06667rem;background-size:17.97333rem 17.97333rem}.tw-ico.x40.xrformula{background-position:-13.6rem -12.8rem}.tw-ico.x40.xrgoodteaching{background-position:0 -14.66667rem}.tw-ico.x40.xrgoodteaching,.tw-ico.x40.xrh5{width:1.06667rem;height:1.06667rem;background-size:17.97333rem 17.97333rem}.tw-ico.x40.xrh5{background-position:-1.33333rem -14.66667rem}.tw-ico.x40.xrimage{background-position:-2.66667rem -14.66667rem}.tw-ico.x40.xrimage,.tw-ico.x40.xrnet{width:1.06667rem;height:1.06667rem;background-size:17.97333rem 17.97333rem}.tw-ico.x40.xrnet{background-position:-4rem -14.66667rem}.tw-ico.x40.xrotcase{background-position:-5.33333rem -14.66667rem}.tw-ico.x40.xrotcase,.tw-ico.x40.xrother{width:1.06667rem;height:1.06667rem;background-size:17.97333rem 17.97333rem}.tw-ico.x40.xrother{background-position:-6.66667rem -14.66667rem}.tw-ico.x40.xrpaper{background-position:-8rem -14.66667rem}.tw-ico.x40.xrpaper,.tw-ico.x40.xrpdf{width:1.06667rem;height:1.06667rem;background-size:17.97333rem 17.97333rem}.tw-ico.x40.xrpdf{background-position:-9.33333rem -14.66667rem}.tw-ico.x40.xrpformula{background-position:-10.66667rem -14.66667rem}.tw-ico.x40.xrpformula,.tw-ico.x40.xrppt{width:1.06667rem;height:1.06667rem;background-size:17.97333rem 17.97333rem}.tw-ico.x40.xrppt{background-position:-12rem -14.66667rem}.tw-ico.x40.xrquestion{background-position:-13.33333rem -14.66667rem}.tw-ico.x40.xrquestion,.tw-ico.x40.xrteachcase{width:1.06667rem;height:1.06667rem;background-size:17.97333rem 17.97333rem}.tw-ico.x40.xrteachcase{background-position:-14.66667rem -14.66667rem}.tw-ico.x40.xrteachtool{background-position:-16rem 0}.tw-ico.x40.xrteachtool,.tw-ico.x40.xrtext{width:1.06667rem;height:1.06667rem;background-size:17.97333rem 17.97333rem}.tw-ico.x40.xrtext{background-position:-16rem -1.33333rem}.tw-ico.x40.xrvideo{background-position:-16rem -2.66667rem}.tw-ico.x40.xrvideo,.tw-ico.x40.xrword{width:1.06667rem;height:1.06667rem;background-size:17.97333rem 17.97333rem}.tw-ico.x40.xrword{background-position:-16rem -4rem}.tw-ico.x40.xrxml{background-position:-16rem -5.33333rem}.tw-ico.x40.xrxml,.tw-ico.x40.xrzip{width:1.06667rem;height:1.06667rem;background-size:17.97333rem 17.97333rem}.tw-ico.x40.xrzip{background-position:-16rem -6.66667rem}.tw-ico.x40.xtdiscuss{background-position:-16rem -8rem}.tw-ico.x40.xtdiscuss,.tw-ico.x40.xtdrawing{width:1.06667rem;height:1.06667rem;background-size:17.97333rem 17.97333rem}.tw-ico.x40.xtdrawing{background-position:-16rem -9.33333rem}.tw-ico.x40.xtgame{background-position:-16rem -10.66667rem}.tw-ico.x40.xtgame,.tw-ico.x40.xthomework{width:1.06667rem;height:1.06667rem;background-size:17.97333rem 17.97333rem}.tw-ico.x40.xthomework{background-position:-16rem -12rem}.tw-ico.x40.xtmicroclass{background-position:-16rem -13.33333rem}.tw-ico.x40.xtmicroclass,.tw-ico.x40.xtmind{width:1.06667rem;height:1.06667rem;background-size:17.97333rem 17.97333rem}.tw-ico.x40.xtmind{background-position:-16rem -14.66667rem}.tw-ico.x40.xtother{background-position:0 -16rem}.tw-ico.x40.xtother,.tw-ico.x40.xtpractise{width:1.06667rem;height:1.06667rem;background-size:17.97333rem 17.97333rem}.tw-ico.x40.xtpractise{background-position:-1.33333rem -16rem}.tw-ico.x40.xtpreparation{background-position:-2.66667rem -16rem}.tw-ico.x40.xtpreparation,.tw-ico.x40.xtresource{width:1.06667rem;height:1.06667rem;background-size:17.97333rem 17.97333rem}.tw-ico.x40.xtresource{background-position:-4rem -16rem}.tw-ico.x40.xttest{background-position:-5.33333rem -16rem}.tw-ico.x40.xttest,.tw-ico.x40.xtvote{width:1.06667rem;height:1.06667rem;background-size:17.97333rem 17.97333rem}.tw-ico.x40.xtvote{background-position:-6.66667rem -16rem}.tw-ico.x40.xtwork{width:1.06667rem;height:1.06667rem;background-position:-8rem -16rem;background-size:17.97333rem 17.97333rem}.tw-ico.x60.xraudio{background-position:-1.86667rem -12.8rem}.tw-ico.x60.xraudio,.tw-ico.x60.xrcourseware{width:1.6rem;height:1.6rem;background-size:17.97333rem 17.97333rem}.tw-ico.x60.xrcourseware{background-position:0 -12.8rem}.tw-ico.x60.xrdir{background-position:-14.13333rem -9.33333rem}.tw-ico.x60.xrdir,.tw-ico.x60.xredue{width:1.6rem;height:1.6rem;background-size:17.97333rem 17.97333rem}.tw-ico.x60.xredue{background-position:-14.13333rem -7.46667rem}.tw-ico.x60.xrepub{background-position:-14.13333rem -5.6rem}.tw-ico.x60.xrepub,.tw-ico.x60.xrepub2{width:1.6rem;height:1.6rem;background-size:17.97333rem 17.97333rem}.tw-ico.x60.xrepub2{background-position:-14.13333rem -3.73333rem}.tw-ico.x60.xrepub3{background-position:-14.13333rem -1.86667rem}.tw-ico.x60.xrepub3,.tw-ico.x60.xrexcel{width:1.6rem;height:1.6rem;background-size:17.97333rem 17.97333rem}.tw-ico.x60.xrexcel{background-position:-14.13333rem 0}.tw-ico.x60.xrflash{background-position:-11.2rem -10.93333rem}.tw-ico.x60.xrflash,.tw-ico.x60.xrformala{width:1.6rem;height:1.6rem;background-size:17.97333rem 17.97333rem}.tw-ico.x60.xrformala{background-position:-9.33333rem -10.93333rem}.tw-ico.x60.xrgoodclass{background-position:-7.46667rem -10.93333rem}.tw-ico.x60.xrgoodclass,.tw-ico.x60.xrh5{width:1.6rem;height:1.6rem;background-size:17.97333rem 17.97333rem}.tw-ico.x60.xrh5{background-position:-5.6rem -10.93333rem}.tw-ico.x60.xriamge{background-position:-3.73333rem -10.93333rem}.tw-ico.x60.xriamge,.tw-ico.x60.xrnet{width:1.6rem;height:1.6rem;background-size:17.97333rem 17.97333rem}.tw-ico.x60.xrnet{background-position:-1.86667rem -10.93333rem}.tw-ico.x60.xrotcase{background-position:0 -10.93333rem}.tw-ico.x60.xrotcase,.tw-ico.x60.xrother{width:1.6rem;height:1.6rem;background-size:17.97333rem 17.97333rem}.tw-ico.x60.xrother{background-position:-12.26667rem -7.46667rem}.tw-ico.x60.xrpaper{background-position:-12.26667rem -5.6rem}.tw-ico.x60.xrpaper,.tw-ico.x60.xrpdf{width:1.6rem;height:1.6rem;background-size:17.97333rem 17.97333rem}.tw-ico.x60.xrpdf{background-position:-12.26667rem -3.73333rem}.tw-ico.x60.xrpformula{background-position:-12.26667rem -1.86667rem}.tw-ico.x60.xrpformula,.tw-ico.x60.xrppt{width:1.6rem;height:1.6rem;background-size:17.97333rem 17.97333rem}.tw-ico.x60.xrppt{background-position:0 -5.33333rem}.tw-ico.x60.xrquestion{background-position:-9.33333rem -9.06667rem}.tw-ico.x60.xrquestion,.tw-ico.x60.xrteachcase{width:1.6rem;height:1.6rem;background-size:17.97333rem 17.97333rem}.tw-ico.x60.xrteachcase{background-position:-7.46667rem -9.06667rem}.tw-ico.x60.xrteachtool{background-position:-3.73333rem -12.8rem}.tw-ico.x60.xrteachtool,.tw-ico.x60.xrtext{width:1.6rem;height:1.6rem;background-size:17.97333rem 17.97333rem}.tw-ico.x60.xrtext{background-position:-3.73333rem -9.06667rem}.tw-ico.x60.xrvideo{background-position:-1.86667rem -9.06667rem}.tw-ico.x60.xrvideo,.tw-ico.x60.xrword{width:1.6rem;height:1.6rem;background-size:17.97333rem 17.97333rem}.tw-ico.x60.xrword{background-position:0 -9.06667rem}.tw-ico.x60.xrxml{background-position:-10.4rem -5.6rem}.tw-ico.x60.xrxml,.tw-ico.x60.xrzip{width:1.6rem;height:1.6rem;background-size:17.97333rem 17.97333rem}.tw-ico.x60.xrzip{background-position:-10.4rem -3.73333rem}.tw-ico.x60.xtdiscuss{background-position:-10.4rem -1.86667rem}.tw-ico.x60.xtdiscuss,.tw-ico.x60.xtdrawing{width:1.6rem;height:1.6rem;background-size:17.97333rem 17.97333rem}.tw-ico.x60.xtdrawing{background-position:-10.4rem 0}.tw-ico.x60.xtgame{background-position:-7.46667rem -7.2rem}.tw-ico.x60.xtgame,.tw-ico.x60.xthomework{width:1.6rem;height:1.6rem;background-size:17.97333rem 17.97333rem}.tw-ico.x60.xthomework{background-position:-5.6rem -7.2rem}.tw-ico.x60.xtmicroclass{background-position:-3.73333rem -7.2rem}.tw-ico.x60.xtmicroclass,.tw-ico.x60.xtmind{width:1.6rem;height:1.6rem;background-size:17.97333rem 17.97333rem}.tw-ico.x60.xtmind{background-position:-1.86667rem -7.2rem}.tw-ico.x60.xtother{background-position:0 -7.2rem}.tw-ico.x60.xtother,.tw-ico.x60.xtpractise{width:1.6rem;height:1.6rem;background-size:17.97333rem 17.97333rem}.tw-ico.x60.xtpractise{background-position:-7.46667rem -5.33333rem}.tw-ico.x60.xtpreparation{background-position:-5.6rem -5.33333rem}.tw-ico.x60.xtpreparation,.tw-ico.x60.xtresource{width:1.6rem;height:1.6rem;background-size:17.97333rem 17.97333rem}.tw-ico.x60.xtresource{background-position:-3.73333rem -5.33333rem}.tw-ico.x60.xttest{background-position:-12.26667rem 0}.tw-ico.x60.xttest,.tw-ico.x60.xtvote{width:1.6rem;height:1.6rem;background-size:17.97333rem 17.97333rem}.tw-ico.x60.xtvote{background-position:-1.86667rem -5.33333rem}.tw-ico.x60.xtword{width:1.6rem;height:1.6rem;background-position:-5.6rem -9.06667rem}.tw-ico.x60.xtword,.tw-ico.xtip{background-size:17.97333rem 17.97333rem}.tw-ico.xtip{width:.53333rem;height:.53333rem;background-position:-4.53333rem -17.33333rem}.tw-ico.xuldel1{width:.48rem;height:.48rem;background-position:-16.58667rem -16rem;background-size:17.97333rem 17.97333rem}.tw-ico.xuldel2:hover{background-position:-5.33333rem -17.33333rem}.tw-ico.xuldel2,.tw-ico.xuldel2:hover{width:.42667rem;height:.42667rem;background-size:17.97333rem 17.97333rem}.tw-ico.xuldel2{background-position:-6.02667rem -17.33333rem}.tw-triangle.xup{display:inline-block;border:5px solid;border-top-color:transparent;border-left-color:transparent;border-right-color:transparent;-webkit-transform-origin:50% 80%;transform-origin:50% 80%}.tw-triangle.xright{display:inline-block;border:5px solid;border-top-color:transparent;border-bottom-color:transparent;border-right-color:transparent;-webkit-transform-origin:30% 50%;transform-origin:30% 50%}.tw-triangle.xdown{display:inline-block;border:5px solid;border-left-color:transparent;border-bottom-color:transparent;border-right-color:transparent;-webkit-transform-origin:50% 30%;transform-origin:50% 30%}.tw-triangle.xleft{display:inline-block;border:5px solid;border-top-color:transparent;border-left-color:transparent;border-bottom-color:transparent;-webkit-transform-origin:80% 50%;transform-origin:80% 50%}.tw-poplayer{position:absolute;top:0;left:0;z-index:1030;width:100%}.tw-poplayer.xseltree{z-index:1030}.tw-poppane{position:absolute;z-index:1000;display:none;overflow:hidden;background:#fff;border-radius:3px;opacity:0;-webkit-transition:all .12s linear;transition:all .12s linear;-webkit-transform:scaleY(.1);transform:scaleY(.1);-webkit-transform-origin:top center;transform-origin:top center}.tw-poppane.xheader{border-radius:0}.tw-poppane.xnotopradius{border-top-left-radius:0;border-top-right-radius:0}.tw-poppane.xopen{display:block;opacity:1;-webkit-transform:scaleY(1);transform:scaleY(1)}.tw-poppane.xfull{width:100%;padding:.13333rem 0 .8rem;margin:0 auto;text-align:center;background-color:#17233d}.tw-poppane.xshadow{-webkit-box-shadow:0 .08rem .24rem #edecec;box-shadow:0 .08rem .24rem #edecec}.tw-poppane.xfull .tw-header-menu{display:inline-block;width:5.86667rem;text-align:left}.tw-poppane.xfull .tw-header-menu-title{padding-bottom:.32rem}.tw-poppane.xleftbottom,.tw-poppane.xrightbottom,.tw-poppane[class*=xauto][style*=bottom],.tw-poppane[class*=xtop]{-webkit-transform-origin:bottom center;transform-origin:bottom center}.tw-poppane.xleftcenter,.tw-poppane.xrightcenter{-webkit-transform-origin:center center;transform-origin:center center}.tw-popswitch{position:relative;padding-right:.4rem;cursor:pointer}.tw-popswitch[class*=xleft]{padding-right:0;padding-left:.4rem}.tw-popswitch.xdisabled{opacity:.45;pointer-events:none;cursor:not-allowed}.tw-popswitch>.tw-triangle{position:absolute;top:50%;right:.05333rem;margin-top:-.05333rem;-webkit-transition:all .12s linear;transition:all .12s linear}.tw-popswitch>.tw-triangle.xleft,.tw-popswitch>.tw-triangle.xright{margin-top:-.13333rem}.tw-popswitch[class*=xleft]>.tw-triangle{right:auto;left:0}.tw-popswitch.xhover:hover>.tw-triangle,.tw-popswitch.xopen>.tw-triangle{-webkit-transform:rotate(180deg);transform:rotate(180deg)}.tw-popswitch.xnoarrow{padding-right:0}.tw-popswitch.xadmin .tw-triangle{display:none}.tw-popswitch.xhollarrow>.tw-triangle{width:.21333rem;height:.21333rem;margin-top:-.13333rem;border:none;border-bottom:1px solid;border-left:1px solid}.tw-popswitch.xhollarrow>.tw-triangle.xdown,.tw-popswitch.xhollarrow>.tw-triangle.xopen{-webkit-transform:rotate(-45deg);transform:rotate(-45deg)}.tw-popswitch.xhollarrow.xopen>.tw-triangle,.tw-popswitch.xhover:hover>.tw-triangle{margin-top:.05333rem;-webkit-transform:rotate(135deg);transform:rotate(135deg)}.tw-popswitch.xfold{margin-left:.21333rem;color:#26a8ff}.tw-popswitch.xfold.xopen{color:#26a8ff}.tw-poppane.xquestion{max-width:0}.tw-librarynodata{position:relative;height:2.93333rem;text-align:center}.tw-librarynodata-inner{position:absolute;top:50%;left:50%;-webkit-transform:translate(-50%,-50%);transform:translate(-50%,-50%)}.tw-librarynodata-inner:after{content:"暂无数据";display:block;color:#999}.tw-librarynodata-icon{display:block;height:1.6rem;line-height:1.6rem}.tw-librarynodata-icon:after{content:"";display:inline-block;font-family:iconfont!important;font-size:.42667rem;font-style:normal;color:#bbb;font-size:1.6rem;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}.tw-librarynodata-img{height:1.6rem;margin-bottom:.13333rem}