#alert{width:6.4rem;background-color:#fff;overflow:hidden}#alert .container{-webkit-box-sizing:border-box;box-sizing:border-box;display:-webkit-box;display:-ms-flexbox;display:flex;padding:16px;min-height:80px}#alert .message{margin:auto;font-size:14px;color:#777;line-height:1.8;word-break:break-all}#alert .toolkit{border-top:1px solid #eee}#alert .btn-toolkit{display:inline-block;width:100%;height:48px;text-align:center;line-height:48px;background:none;color:#bbb;font-size:12px;cursor:pointer}#alert .btn-toolkit:active{background-color:rgba(0,0,0,.02)}#confirm{width:6.4rem;background-color:#fff;overflow:hidden}#confirm .container{-webkit-box-sizing:border-box;box-sizing:border-box;display:-webkit-box;display:-ms-flexbox;display:flex;-webkit-box-orient:vertical;-o-box-orient:vertical;-ms-flex-direction:column;flex-direction:column;padding:16px;min-height:80px}#confirm .title{font-weight:700;color:#555}#confirm .message,#confirm .title{margin:auto;font-size:14px;line-height:1.8;word-break:break-all}#confirm .message{color:#777}#confirm .toolkit{border-top:1px solid #eee}#confirm .btn-toolkit{display:inline-block;width:50%;height:48px;line-height:48px;background:none;color:#bbb;font-size:12px;cursor:pointer}#confirm .btn-toolkit:last-of-type{color:#777}#confirm .btn-toolkit:last-of-type:first-of-type{width:100%}#confirm .btn-toolkit:active{background-color:rgba(0,0,0,.02)}.scrollable{width:100%;height:100%;position:relative;overflow:hidden}.scrollable.theme-light .scroller-scrollable,.scrollable.theme-white .scroller-scrollable{background-color:hsla(0,0%,100%,.5)}.scrollable .container-scrollable{position:absolute;left:0;top:0;width:100%;height:100%;overflow:hidden;overflow-y:auto;padding-right:20px;scroll-behavior:smooth;-webkit-overflow-scrolling:touch}.scrollable .container-scrollable::-webkit-scrollbar{display:none}.scrollable .container-scrollable.is-frozen{pointer-events:none}.scrollable .scrollbar-scrollable{position:absolute;right:0;top:0;width:2px;height:100%;-webkit-transform:scaleY(.98);transform:scaleY(.98);pointer-events:none}.scrollable .scroller-scrollable{position:absolute;left:0;top:0;width:100%;height:100%;background-color:rgba(0,0,0,.5);will-change:transform;-webkit-transition:-webkit-transform .2s ease;transition:-webkit-transform .2s ease;transition:transform .2s ease;transition:transform .2s ease,-webkit-transform .2s ease;-webkit-transform-origin:top;transform-origin:top}#menu{width:6.4rem;max-height:calc(100% - 64px);background-color:#fff;padding-bottom:50px;overflow:hidden}#menu .container{width:100%}#menu .scrollbar-scrollable{-webkit-transform:scaleY(.96);transform:scaleY(.96)}#menu .item{-webkit-box-sizing:border-box;box-sizing:border-box;position:relative;width:100%;height:48px;text-align:center;line-height:48px;padding:0 16px;border-bottom:1px solid rgba(0,0,0,.05);font-size:14px;color:#777;cursor:pointer;-webkit-tap-highlight-color:rgba(0,0,0,.02)}#menu .item:active{background-color:rgba(0,0,0,.02)}#menu .item.is-marked{color:#222;font-weight:700}#menu .toolkit{position:absolute;left:0;bottom:0;width:100%;background-color:#fff;border-top:2px solid #eee}#menu .btn-toolkit{display:inline-block;width:100%;height:48px;line-height:48px;background:none;color:#bbb;font-size:12px;cursor:pointer;-webkit-tap-highlight-color:rgba(0,0,0,.02)}#menu .btn-toolkit:active{background-color:rgba(0,0,0,.02)}#mask{position:fixed;left:0;top:0;width:100vw;height:100vh;display:-webkit-box;display:-ms-flexbox;display:flex;will-change:opacity;background-color:rgba(0,0,0,.8);-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none;z-index:10;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}#mask.theme-default>div{margin-top:.55rem;border-radius:16px}#mask>div{position:relative;margin:auto;-webkit-animation:slideIn .5s cubic-bezier(.68,-.55,.265,1.55) both;animation:slideIn .5s cubic-bezier(.68,-.55,.265,1.55) both;will-change:opacity transform;z-index:15}@-webkit-keyframes slideIn{0%{opacity:0;-ms-filter:"progid:DXImageTransform.Microsoft.Alpha(Opacity=0)";filter:alpha(opacity=0);-webkit-transform:translateY(32px);transform:translateY(32px)}to{opacity:1;-ms-filter:none;-webkit-filter:none;filter:none;-webkit-transform:translateY(0);transform:translateY(0)}}@keyframes slideIn{0%{opacity:0;-ms-filter:"progid:DXImageTransform.Microsoft.Alpha(Opacity=0)";filter:alpha(opacity=0);-webkit-transform:translateY(32px);transform:translateY(32px)}to{opacity:1;-ms-filter:none;-webkit-filter:none;filter:none;-webkit-transform:translateY(0);transform:translateY(0)}}#float-splash p{color:#fff;font-size:.24rem;margin:.2rem auto 0}#icon-splash{background:50% no-repeat;background-size:cover;background-image:url("data:image/png;base64,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");width:1.2rem;height:1.2rem;margin:0 auto}#mask>div{-webkit-animation:slideInSp .5s cubic-bezier(.68,-.55,.265,1.55) both;animation:slideInSp .5s cubic-bezier(.68,-.55,.265,1.55) both}@-webkit-keyframes slideInSp{0%{opacity:0;-ms-filter:"progid:DXImageTransform.Microsoft.Alpha(Opacity=0)";filter:alpha(opacity=0);-webkit-transform:translateX(-32px);transform:translateX(-32px)}to{opacity:1;-ms-filter:none;-webkit-filter:none;filter:none;-webkit-transform:translateX(0);transform:translateX(0)}}@keyframes slideInSp{0%{opacity:0;-ms-filter:"progid:DXImageTransform.Microsoft.Alpha(Opacity=0)";filter:alpha(opacity=0);-webkit-transform:translateX(-32px);transform:translateX(-32px)}to{opacity:1;-ms-filter:none;-webkit-filter:none;filter:none;-webkit-transform:translateX(0);transform:translateX(0)}}#info-app{position:fixed;left:20%;top:60%;will-change:opacity;width:60%;z-index:150;font-size:0;pointer-events:none}#info-app .item{-webkit-box-sizing:border-box;box-sizing:border-box;will-change:opacity,transform;width:100%;margin:0 auto 8px;text-align:center;-webkit-transition:opacity .3s ease,-webkit-transform .3s ease;transition:opacity .3s ease,-webkit-transform .3s ease;transition:opacity .3s ease,transform .3s ease;transition:opacity .3s ease,transform .3s ease,-webkit-transform .3s ease}#info-app .item .inner{display:inline-block;text-align:left;line-height:16px;font-size:12px;background-color:rgba(0,0,0,.9);color:#fff;padding:16px 24px;margin:0 auto;border-radius:24px;word-wrap:break-word;word-break:break-all}#info-app .info-enter,#info-app .info-leave-to{opacity:0;-ms-filter:"progid:DXImageTransform.Microsoft.Alpha(Opacity=0)";filter:alpha(opacity=0);-webkit-transform:scale(.5);transform:scale(.5)}#info-app .info-leave-active{position:absolute}#point{position:fixed;width:.5rem;height:.5rem;margin-left:-.25rem;margin-top:-.25rem;pointer-events:none;z-index:255}#point:before{left:0;top:0;width:100%;height:100%;background-color:transparent;-webkit-box-shadow:0 0 0 .05rem rgba(251,114,153,.25);box-shadow:0 0 0 .05rem rgba(251,114,153,.25);-webkit-animation:zoom-pointer-a .2s linear .1s both;animation:zoom-pointer-a .2s linear .1s both}#point:after,#point:before{position:absolute;content:"";border-radius:50%}#point:after{left:10%;top:10%;width:80%;height:80%;background-color:rgba(251,114,153,.2);-webkit-animation:zoom-pointer-b .2s linear both;animation:zoom-pointer-b .2s linear both}@-webkit-keyframes zoom-pointer-a{0%{opacity:0;-ms-filter:"progid:DXImageTransform.Microsoft.Alpha(Opacity=0)";filter:alpha(opacity=0);-webkit-transform:scale(.8);transform:scale(.8)}50%{opacity:1;-ms-filter:none;-webkit-filter:none;filter:none;-webkit-transform:scale(1);transform:scale(1)}to{opacity:0;-ms-filter:"progid:DXImageTransform.Microsoft.Alpha(Opacity=0)";filter:alpha(opacity=0);-webkit-transform:scale(1.2);transform:scale(1.2)}}@keyframes zoom-pointer-a{0%{opacity:0;-ms-filter:"progid:DXImageTransform.Microsoft.Alpha(Opacity=0)";filter:alpha(opacity=0);-webkit-transform:scale(.8);transform:scale(.8)}50%{opacity:1;-ms-filter:none;-webkit-filter:none;filter:none;-webkit-transform:scale(1);transform:scale(1)}to{opacity:0;-ms-filter:"progid:DXImageTransform.Microsoft.Alpha(Opacity=0)";filter:alpha(opacity=0);-webkit-transform:scale(1.2);transform:scale(1.2)}}@-webkit-keyframes zoom-pointer-b{0%,to{opacity:0;-ms-filter:"progid:DXImageTransform.Microsoft.Alpha(Opacity=0)";filter:alpha(opacity=0)}50%{opacity:1;-ms-filter:none;-webkit-filter:none;filter:none}}@keyframes zoom-pointer-b{0%,to{opacity:0;-ms-filter:"progid:DXImageTransform.Microsoft.Alpha(Opacity=0)";filter:alpha(opacity=0)}50%{opacity:1;-ms-filter:none;-webkit-filter:none;filter:none}}#wait-app{position:fixed;left:50%;top:50%;-webkit-transform:translate(-50%,-50%);transform:translate(-50%,-50%);will-change:opacity,transform;width:30px;height:auto;font-size:0;padding:16px;z-index:129;-webkit-transition:opacity .3s ease;transition:opacity .3s ease}#wait-app:before{position:absolute;left:0;top:0;content:"";display:block;width:100%;height:100%;background-color:rgba(0,0,0,.9);border-radius:8px;-webkit-transition:-webkit-transform .3s cubic-bezier(.68,-.55,.265,1.55);transition:-webkit-transform .3s cubic-bezier(.68,-.55,.265,1.55);transition:transform .3s cubic-bezier(.68,-.55,.265,1.55);transition:transform .3s cubic-bezier(.68,-.55,.265,1.55),-webkit-transform .3s cubic-bezier(.68,-.55,.265,1.55)}#wait-app.wait-enter,#wait-app.wait-leave-to{opacity:0;-ms-filter:"progid:DXImageTransform.Microsoft.Alpha(Opacity=0)";filter:alpha(opacity=0)}#wait-app.wait-enter:before,#wait-app.wait-leave-to:before{-webkit-transform:scale(1.5);transform:scale(1.5)}#wait-app div{-webkit-box-sizing:border-box;box-sizing:border-box;display:inline-block;width:8px;height:8px;background-color:#fff;margin:1px;border-radius:50%;-webkit-animation-fill-mode:forwards;animation-fill-mode:forwards}#wait-app div,#wait-app div:nth-of-type(5){opacity:0;-ms-filter:"progid:DXImageTransform.Microsoft.Alpha(Opacity=0)";filter:alpha(opacity=0)}#wait-app div:first-of-type{-webkit-animation:waiting 1s ease -.125s infinite;animation:waiting 1s ease -.125s infinite}#wait-app div:nth-of-type(2){-webkit-animation:waiting 1s ease 0s infinite;animation:waiting 1s ease 0s infinite}#wait-app div:nth-of-type(3){-webkit-animation:waiting 1s ease .125s infinite;animation:waiting 1s ease .125s infinite}#wait-app div:nth-of-type(6){-webkit-animation:waiting 1s ease .25s infinite;animation:waiting 1s ease .25s infinite}#wait-app div:nth-of-type(9){-webkit-animation:waiting 1s ease .375s infinite;animation:waiting 1s ease .375s infinite}#wait-app div:nth-of-type(8){-webkit-animation:waiting 1s ease .5s infinite;animation:waiting 1s ease .5s infinite}#wait-app div:nth-of-type(7){-webkit-animation:waiting 1s ease .625s infinite;animation:waiting 1s ease .625s infinite}#wait-app div:nth-of-type(4){-webkit-animation:waiting 1s ease .75s infinite;animation:waiting 1s ease .75s infinite}@-webkit-keyframes waiting{0%,75%,to{opacity:0;-ms-filter:"progid:DXImageTransform.Microsoft.Alpha(Opacity=0)";filter:alpha(opacity=0);-webkit-transform:scale(.5);transform:scale(.5)}25%{opacity:1;-ms-filter:none;-webkit-filter:none;filter:none;-webkit-transform:scale(1);transform:scale(1)}}@keyframes waiting{0%,75%,to{opacity:0;-ms-filter:"progid:DXImageTransform.Microsoft.Alpha(Opacity=0)";filter:alpha(opacity=0);-webkit-transform:scale(.5);transform:scale(.5)}25%{opacity:1;-ms-filter:none;-webkit-filter:none;filter:none;-webkit-transform:scale(1);transform:scale(1)}}#area-1{background:50% no-repeat;background-size:cover;background-image:url(//activity.hdslb.com/blackboard/activity28984/img/bg.7fcd645b.jpg);width:7.5rem;height:10.9rem}#area-2 .header{background:50% no-repeat;background-size:cover;background-image:url(//activity.hdslb.com/blackboard/activity28984/img/header.25447e2c.jpg);width:7.5rem;height:4.41rem}#area-2 .header:before{background:50% no-repeat;background-size:cover;background-image:url(//activity.hdslb.com/blackboard/activity28984/img/1.74318acf.png);width:4.42rem;height:2.65rem}#area-2 .mainer{background-image:url(//activity.hdslb.com/blackboard/activity28984/img/bg.b47b49e4.jpg)}#area-3 .header{background:50% no-repeat;background-size:cover;background-image:url(//activity.hdslb.com/blackboard/activity28984/img/header.f12d50c7.jpg);width:7.5rem;height:4.07rem}#area-3 .header:before{background:50% no-repeat;background-size:cover;background-image:url(//activity.hdslb.com/blackboard/activity28984/img/2.7c8ca6f0.png);width:5.11rem;height:2.8rem}#area-3 .mainer{background-image:url(//activity.hdslb.com/blackboard/activity28984/img/bg.4be9cf4e.jpg)}#area-4 .header{background:50% no-repeat;background-size:cover;background-image:url(//activity.hdslb.com/blackboard/activity28984/img/header.8e1f927b.jpg);width:7.5rem;height:3.92rem}#area-4 .header:before{background:50% no-repeat;background-size:cover;background-image:url(//activity.hdslb.com/blackboard/activity28984/img/3.af9dc6c8.png);width:4.18rem;height:2.88rem}#area-4 .mainer{background-image:url(//activity.hdslb.com/blackboard/activity28984/img/bg.54c018fe.jpg)}#area-5 .header{background:50% no-repeat;background-size:cover;background-image:url(//activity.hdslb.com/blackboard/activity28984/img/header.2a75da1e.jpg);width:7.5rem;height:3.92rem}#area-5 .header:before{background:50% no-repeat;background-size:cover;background-image:url(//activity.hdslb.com/blackboard/activity28984/img/4.98e51d21.png);width:3.07rem;height:1.74rem}#area-5 .mainer{background-image:url(//activity.hdslb.com/blackboard/activity28984/img/bg.30136646.jpg)}#area-6 .header{background:50% no-repeat;background-size:cover;background-image:url(//activity.hdslb.com/blackboard/activity28984/img/header.e941b4eb.jpg);width:7.5rem;height:3.91rem}#area-6 .header:before{background:50% no-repeat;background-size:cover;background-image:url(//activity.hdslb.com/blackboard/activity28984/img/5.5cdaf32d.png);width:3.96rem;height:2.71rem}#area-6 .mainer{background-image:url(//activity.hdslb.com/blackboard/activity28984/img/bg.58cd6251.jpg)}.area{overflow:visible}.area .header{position:relative;z-index:2;pointer-events:none}.area .header:before{position:absolute;left:0;content:""}.area .mainer{padding:.3rem 0 .5rem;background-position:top;background-repeat:repeat-y;background-size:100%}.area .item{display:block;position:relative;width:5.6rem;height:4.199999999999999rem;margin:1rem auto;background-color:#e3dee2;background-image:-webkit-gradient(linear,left top,right top,from(#ded7d1),to(#e3dee2));background-image:linear-gradient(90deg,#ded7d1,#e3dee2);-webkit-box-shadow:0 0 0 .15rem #272533,-.2rem 0 .2rem rgba(0,0,0,.5);box-shadow:0 0 0 .15rem #272533,-.2rem 0 .2rem rgba(0,0,0,.5);cursor:pointer;z-index:1}.area .item:after{background:50% no-repeat;background-size:cover;background-image:url(//activity.hdslb.com/blackboard/activity28984/img/light.e8d30f3c.png);width:7.5rem;height:8.82rem;position:absolute;right:-.7rem;top:50%;content:"";-webkit-transform:translateY(-50%);transform:translateY(-50%);pointer-events:none}.area .item:first-of-type{margin-top:0}.area .item:last-of-type{margin-bottom:0}.area .thumb{width:3.75rem;height:4.21rem;right:.4rem;background-color:#eee;-webkit-box-shadow:0 .1rem .1rem rgba(0,0,0,.2);box-shadow:0 .1rem .1rem rgba(0,0,0,.2)}.area .author,.area .thumb,.area .title{position:absolute;-webkit-transform:rotate(90deg);transform:rotate(90deg)}.area .author,.area .title{-webkit-box-sizing:border-box;box-sizing:border-box;width:3.359999999999999rem;left:1rem;top:.42rem;padding:.1rem .5em;line-height:.3rem;font-size:.24rem;color:#555;background-color:#fff;-webkit-transform-origin:left top;transform-origin:left top;-webkit-box-shadow:0 .05rem .05rem rgba(0,0,0,.1);box-shadow:0 .05rem .05rem rgba(0,0,0,.1)}#area-2 .header:before{top:2.4rem}#area-2 .cursor{background:50% 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.cursor:before{position:absolute;left:.37rem;top:-.11rem;content:"";width:1rem;height:1rem;background-color:transparent;-webkit-box-shadow:0 0 0 .05rem #000;box-shadow:0 0 0 .05rem #000;border-radius:50%;-webkit-animation:zoom-cursor 1s infinite both;animation:zoom-cursor 1s infinite both}#area-2 .cursor:after{background:50% 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