课程调整时长，只能调整比当前课程时长短的时间

dist/static/css/chunk-1dbc84b6.7f48eb21.css

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-[data-v-6f5c4484] .dialog-footer{margin-top:10px}.dialog-footer[data-v-6f5c4484]{float:right}.courseDiv[data-v-3756bc8a]{height:45px;line-height:45px;-webkit-box-orient:vertical;-webkit-box-direction:normal;-ms-flex-direction:column;flex-direction:column}.courseDiv[data-v-3756bc8a],[data-v-3756bc8a] .header{display:-webkit-box;display:-ms-flexbox;display:flex;-webkit-box-align:center;-ms-flex-align:center;align-items:center}[data-v-3756bc8a] .header{width:100%;-webkit-box-pack:justify;-ms-flex-pack:justify;justify-content:space-between}[data-v-3756bc8a] .header>span:first-child{display:-webkit-box;display:-ms-flexbox;display:flex}[data-v-3756bc8a] .header>span:first-child:before{content:"";display:block;width:5px;background-color:var(--color-primary);margin-right:10px;border-radius:2px;height:48px}[data-v-3756bc8a] .header .icon{font-size:18px;font-weight:400;margin-right:20px}[data-v-3756bc8a] .header ::v-deep .el-collapse-item__wrap{border-bottom:none!important}.title[data-v-17de59a8]{line-height:44px}.fixedBox[data-v-17de59a8]{position:fixed;bottom:20px;right:10px;z-index:100;width:200px;background-color:#fff;font-size:14px}.fixedBox .boxWrap[data-v-17de59a8]{display:-webkit-box;display:-ms-flexbox;display:flex;-webkit-box-orient:horizontal;-webkit-box-direction:normal;-ms-flex-direction:row;flex-direction:row;-webkit-box-pack:justify;-ms-flex-pack:justify;justify-content:space-between}.fixedBox .boxWrap i[data-v-17de59a8]{font-size:18px;cursor:pointer}[data-v-17de59a8] .el-divider--horizontal{margin:0!important}.topWrap[data-v-17de59a8]{margin:10px 0;padding:0 20px 0 0}.minus[data-v-17de59a8]{float:right;line-height:44px;padding-right:20px;font-size:20px;cursor:pointer}

dist/static/css/chunk-5483d1b2.72454671.css → dist/static/css/chunk-1e1fce58.691e6039.css

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-[data-v-cc7229ee] .dialog-footer{display:-webkit-box;display:-ms-flexbox;display:flex;-webkit-box-orient:horizontal;-webkit-box-direction:normal;-ms-flex-direction:row;flex-direction:row;-webkit-box-pack:end;-ms-flex-pack:end;justify-content:flex-end}[data-v-622fad69] .el-calendar-day{-webkit-box-sizing:border-box;box-sizing:border-box;height:80px!important;min-width:118px}[data-v-622fad69] .current.is-selected{border:2px solid var(--color-primary)}[data-v-622fad69] .current.is-selected .el-calendar-day{height:76px!important}.vipDot[data-v-622fad69]{background-color:#2aaea6}.teamDot[data-v-622fad69],.vipDot[data-v-622fad69]{width:30px;height:30px;margin-top:10px;display:inline-block;border-radius:50%;text-align:center;line-height:30px;color:#fff;font-size:14px}.teamDot[data-v-622fad69]{background-color:#5a79f6}.newDot[data-v-622fad69]{width:30px;height:30px;margin-top:10px;background-color:#34b1f6;display:inline-block;border-radius:50%;text-align:center;line-height:30px;color:#fff;font-size:14px}
+[data-v-7b253b09] .dialog-footer{display:-webkit-box;display:-ms-flexbox;display:flex;-webkit-box-orient:horizontal;-webkit-box-direction:normal;-ms-flex-direction:row;flex-direction:row;-webkit-box-pack:end;-ms-flex-pack:end;justify-content:flex-end}[data-v-622fad69] .el-calendar-day{-webkit-box-sizing:border-box;box-sizing:border-box;height:80px!important;min-width:118px}[data-v-622fad69] .current.is-selected{border:2px solid var(--color-primary)}[data-v-622fad69] .current.is-selected .el-calendar-day{height:76px!important}.vipDot[data-v-622fad69]{background-color:#2aaea6}.teamDot[data-v-622fad69],.vipDot[data-v-622fad69]{width:30px;height:30px;margin-top:10px;display:inline-block;border-radius:50%;text-align:center;line-height:30px;color:#fff;font-size:14px}.teamDot[data-v-622fad69]{background-color:#5a79f6}.newDot[data-v-622fad69]{width:30px;height:30px;margin-top:10px;background-color:#34b1f6;display:inline-block;border-radius:50%;text-align:center;line-height:30px;color:#fff;font-size:14px}