#app{box-sizing:border-box}#app *,#app :after,#app :before{box-sizing:inherit}*{margin:0;padding:0}:root{--font-family-primary:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei","微软雅黑","Helvetica Neue",Helvetica,Arial,sans-serif;--font-family-chinese:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","微软雅黑","SimSun","宋体",sans-serif;--font-family-mono:"SF Mono",Monaco,"Cascadia Code","Roboto Mono",Consolas,"Courier New",monospace;--font-size-xs:0.6vw;--font-size-sm:0.7vw;--font-size-base:0.8vw;--font-size-lg:0.9vw;--font-size-xl:1vw;--font-size-2xl:1.2vw;--font-size-3xl:1.4vw;--font-size-4xl:1.6vw;--font-size-5xl:1.8vw;--font-size-6xl:2vw;--line-height-tight:1.25;--line-height-normal:1.5;--line-height-relaxed:1.75;--font-weight-light:300;--font-weight-normal:400;--font-weight-medium:500;--font-weight-semibold:600;--font-weight-bold:700}*{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;text-rendering:optimizeLegibility}body,html{font-family:var(--font-family-chinese);line-height:var(--line-height-normal);color:#1d2129}h1,h2,h3,h4,h5,h6{font-family:var(--font-family-primary);font-weight:var(--font-weight-semibold);line-height:var(--line-height-tight)}input,select,textarea{font-family:var(--font-family-chinese)}.btn,button{font-family:var(--font-family-primary);font-weight:var(--font-weight-medium)}.code-block,code,pre{font-family:var(--font-family-mono);font-size:var(--font-size-sm)}.number,.price,.score{font-weight:var(--font-weight-medium)}.en-content,.english-text,.number,.price,.score{font-family:var(--font-family-primary)}.chinese-text,.zh-content{font-family:var(--font-family-chinese)}.font-smooth{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;text-rendering:optimizeLegibility}.font-render-optimized{text-rendering:optimizeLegibility;font-feature-settings:"kern" 1}@media (max-width:768px){:root{--font-size-xs:10px;--font-size-sm:12px;--font-size-base:14px;--font-size-lg:16px;--font-size-xl:18px;--font-size-2xl:20px;--font-size-3xl:24px;--font-size-4xl:28px;--font-size-5xl:32px;--font-size-6xl:36px}}@media (min-resolution:192dpi){*{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}}@media (prefers-color-scheme:dark){*{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}}:root{--page-min-width:51.2vw}*{font-family:var(--font-family-primary)}.flex-stretch{justify-content:stretch}.flex-center,.flex-stretch{display:flex;align-items:center}.flex-center{justify-content:center}.flex-end{justify-content:flex-end}.flex-end,.flex-start{display:flex;align-items:center}.flex-start{justify-content:flex-start}.flex-align,.flex-between{display:flex;align-items:center}.flex-between{justify-content:space-between}.icon-center{display:flex;align-items:center;justify-content:center}.text-over{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.pointer{cursor:pointer}.pen-cursor{cursor:url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" viewBox="0 0 16 16"><circle cx="8" cy="8" r="3" fill="none" stroke="%23000" stroke-width="1"/></svg>') 8 8,auto}.eraser-cursor{cursor:url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" viewBox="0 0 16 16"><rect x="2" y="2" width="12" height="12" fill="none" stroke="%23000" stroke-width="1"/></svg>') 8 8,auto}.crosshair-cursor{cursor:crosshair}:fullscreen{background-color:#f6f7f8}.el-header,.el-main{padding:0!important}.el-input__inner{height:2.2vw;border-radius:.4vw;border:1px solid #dcdfe6!important;font-family:var(--font-family-chinese)}.el-input__inner:focus{background:#fff!important;border-color:#007aff!important;border-radius:.4vw!important}.el-input__inner:hover{border-color:none!important;border-radius:.4vw!important}::-webkit-scrollbar{width:.2vw;height:.4vw;background-color:transparent}::-webkit-scrollbar-track{box-shadow:none;background-color:transparent}::-webkit-scrollbar-thumb{box-shadow:none;background-color:#7f7f7f;border-radius:.5vw}::-webkit-scrollbar-corner{background:transparent}*,:after,:before{-webkit-user-select:none;-moz-user-select:none;user-select:none;-webkit-tap-highlight-color:rgba(0,0,0,0)}.el-input__inner,.el-textarea__inner,[contenteditable=true],input,textarea{-webkit-user-select:text!important;-moz-user-select:text!important;user-select:text!important;-webkit-tap-highlight-color:rgba(0,0,0,.1);font-family:var(--font-family-chinese)}.el-input__inner,.el-textarea__inner{touch-action:manipulation}.el-message,.el-message__content{font-family:var(--font-family-chinese)}.stu_bg{background-image:url(/img/commonBg.8bbec0f5.png);padding:0 1.6vw 0 1.6vw}.stu_bg,.stu_bg2{background-size:100% 100%;background-repeat:no-repeat;width:100%;min-height:100vh;height:100%;position:relative;box-sizing:border-box}.stu_bg2{background-image:url(/img/first_test_bg.5ac65904.png);padding:2.5vw 1.6vw 0 1.6vw}.title-line{position:relative;z-index:1}.title-line:after{content:"";position:absolute;width:100%;height:.5vw;background:linear-gradient(90deg,#ccfdc1,#98e8f8);bottom:.5vw;left:0;z-index:-1}.van-dialog__confirm{color:#007aff!important}.blue-text{color:#007aff}.red-text{color:#ff5050}.orange-text{color:#fe7c00}.green-text{color:#0eca7b}.red-bg{background-color:#ff5050}.orange-bg{background-color:#fe7c00}.green-bg{background-color:#0fc6c2}.flex-column{display:flex;flex-direction:column}.eraser-cursor{cursor:url(data:image/png;base64,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) 4 20,auto}.pen-cursor{cursor:url(data:image/png;base64,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) 0 30,auto}.el-message{top:50%!important;left:50%!important;transform:translate(-50%,-50%)!important;margin:0!important}.el-divider{background:#afcaf0!important}.el-textarea__inner{background:#fff}.el-image-viewer__wrapper{z-index:9999!important}.el-image-viewer__canvas,.el-image-viewer__img{max-width:90vw!important;max-height:90vh!important}.el-image-viewer__img{-o-object-fit:contain!important;object-fit:contain!important}.el-image-viewer__wrapper .el-image-viewer__canvas img{max-width:90vw!important;max-height:90vh!important;width:auto!important;height:auto!important}.el-image-viewer__close{top:5vw}.el-button--default{border-radius:.4vw}.el-button--default:hover{border-color:#1a87ff!important;color:#1a87ff!important;background:transparent!important}.el-button--default:active{border-color:#006ee5!important;color:#006ee5!important;background:transparent!important}.el-button--primary{background:#007aff!important;border-color:#007aff!important;color:#fff!important}.el-button--primary:hover{background:#1a87ff!important;border-color:#1a87ff!important;color:#fff!important}.el-button--primary:active{background:#006ee5!important;border-color:#006ee5!important;color:#fff!important}.el-dialog{border-radius:.4vw}.el-dialog .el-dialog__header{border-bottom:1px solid #e5e6eb}.el-message-box{border-radius:12px;padding:0}.el-message-box__title{font-size:14px;font-weight:500;color:#1d2129}.el-message-box__content{font-size:14px;color:#1d2129;padding:24px 20px}.el-message-box__headerbtn{position:unset!important}.el-message-box__headerbtn i:before{font-size:20px;font-weight:600;color:#4e5969}.el-message-box__header{padding:16px 16px 16px 20px;box-sizing:border-box;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid #e5e6eb}.el-message-box__btns{border-top:1px solid #e5e6eb;padding:12px 20px}.button_prev{background:linear-gradient(180deg,#f1f8ff,#fff)!important;color:#1a87ff!important;cursor:pointer}.button_prev:hover{border-color:#1a87ff;background:linear-gradient(180deg,#e6f2ff,#fff)!important;color:#4096ff!important}.button_prev:active,.button_prev:hover{box-shadow:0 0 .35vw 0 rgba(14,68,127,.08)}.button_prev:active{border-color:#006ee5;background:linear-gradient(180deg,#e5f1ff,#f4f9fe)!important;color:#006ee5!important}.button_prev_disabled{border-color:#a6caff;background:linear-gradient(180deg,#f1f8ff,#fff)!important;box-shadow:0 0 .35vw 0 rgba(14,68,127,.02);color:#a6caff!important;cursor:not-allowed}.button_next{background:linear-gradient(0deg,#09f .03%,#1483f9 99.97%)!important;color:#fff!important;cursor:pointer}.button_next:hover{border-color:#57a6fa;background:linear-gradient(0deg,#1aa2ff .03%,#2c90fa 99.97%)!important}.button_next:active,.button_next:hover{box-shadow:0 0 .35vw 0 rgba(14,68,127,.16)}.button_next:active{border-color:#3c8be1;background:linear-gradient(0deg,#0189e5 .03%,#1377e1 99.97%)!important}.button_next_disabled{border-color:#9ec2f7;background:linear-gradient(180deg,#8fbbff,#accdff)!important;box-shadow:0 0 .35vw 0 rgba(14,68,127,.08);cursor:not-allowed}.button_orange{background:linear-gradient(180deg,#ff8738,#fe9a4d)!important;cursor:pointer}.button_orange:hover{border-color:#ffaa6c;background:linear-gradient(180deg,#ff9442,#fea558)!important;box-shadow:0 0 .35vw 0 rgba(213,95,11,.16)}.button_orange:active{border-color:#fe9554;background:linear-gradient(180deg,#ff7e2d,#fe903f)!important;box-shadow:0 0 .35vw 0 rgba(213,95,11,.16)}.button_orange_disabled{border-color:#ffd99a;background:linear-gradient(180deg,#ffc881,#ffd68e)!important;box-shadow:0 0 .35vw 0 rgba(160,98,10,.1);cursor:not-allowed}.button_red{background:linear-gradient(0deg,#ff5050,#f73535)!important;cursor:pointer}.button_red:hover{border-color:#fb7575;background:linear-gradient(0deg,#ff687a,#f92c2d)!important}.button_red:active,.button_red:hover{box-shadow:0 0 .35vw 0 rgba(206,15,15,.16)}.button_red:active{border-color:#e95758;background:linear-gradient(0deg,#ef4949,#e83334)!important}.button_red_disabled{border-color:#ffb2b1;background:linear-gradient(0deg,#feadad,#ff9d9d)!important;box-shadow:0 0 .35vw 0 rgba(206,15,15,.16);cursor:not-allowed}.button_normal{cursor:pointer}.button_normal:hover{color:#fff!important;background:#4096ff!important}.button_normal:active{color:#fff!important;background:#006ee5!important}.button_normal_disabled{color:#fff!important;background:#a6caff!important;cursor:not-allowed}.button_white{cursor:pointer}.button_white:hover{border-color:#1a87ff!important;color:#4096ff!important}.button_white:active{border-color:#006ee5!important;color:#006ee5!important}.button_white_disabled{border-color:#e5e6eb!important;color:#c9cdd4!important;cursor:not-allowed}.button_text{cursor:pointer}.button_text:hover{color:#4096ff!important}.button_text:active{color:#006ee5!important}.button_text_disabled{color:#c9cdd4!important;cursor:not-allowed}.button_ripple{position:relative;transition:all .3s ease;overflow:visible}.button_ripple:after{content:"";position:absolute;top:0;left:0;right:0;bottom:0;border-radius:inherit;pointer-events:none;opacity:0}.button_ripple.ripple-active:after{animation:buttonRipple .6s ease-out;opacity:1}@keyframes buttonRipple{0%{box-shadow:0 0 0 0 rgba(26,135,255,.6)}50%{box-shadow:0 0 0 8px rgba(26,135,255,.3)}to{box-shadow:0 0 0 16px rgba(26,135,255,0)}}.version-gray{background:linear-gradient(180deg,#f0f0f0,#f2f3f5);color:#4e5969;margin-right:16px}.version-gray,.version-orange{border-radius:12px;height:20px;line-height:20px;text-align:center;padding:0 8px;font-size:13px}.version-orange{background:linear-gradient(180deg,#ffc243,#fda427);color:#fff;margin-left:8px}.stu-orange-versions{background:linear-gradient(180deg,#ffc243,#fda427);height:1.5vw;line-height:1.5vw;color:#fff!important;font-size:1.2vw}.stu-gray-versions,.stu-orange-versions{border-radius:1.2vw;text-align:center;padding:0 .8vw}.stu-gray-versions{background:linear-gradient(180deg,#f0f0f0,#f2f3f5);height:2vw;line-height:2vw;color:#4e5969!important;font-size:1.3vw;margin-right:1.6vw}.class-time[data-v-2e683a57]{display:flex;align-items:center;white-space:nowrap}.clock-icon[data-v-2e683a57]{width:16px;height:16px;margin-right:8px}.class-id[data-v-2e683a57]{color:#4e5969;font-size:14px;white-space:nowrap}.header[data-v-d856df60]{height:4.4vw}.header-fixed[data-v-d856df60]{width:100%;position:fixed;top:0;left:0;padding:0 1.6vw;z-index:1}.header-item2[data-v-d856df60],.header-item[data-v-d856df60]{width:33.33%}.title[data-v-d856df60]{color:#1d2129;text-align:center;font-size:1.6vw;font-weight:500}.arrow-icon[data-v-d856df60]{width:2.4vw;height:2.4vw;margin-left:-.8vw}.class-title[data-v-d856df60]{color:#1d2129;font-size:1.4vw;font-weight:500}.item-title[data-v-d856df60]{color:#4e5969;font-size:1.2vw}.line[data-v-d856df60]{font-size:1.2vw;color:#c9cdd4;margin:0 .8vw}[data-v-d856df60] .clock-icon{width:1.4vw;height:1.4vw;margin-right:.8vw}[data-v-d856df60] .class-id{color:#4e5969;font-size:1.2vw}.iconTip[data-v-d856df60]{color:#f53f3f;margin-left:.6vw;font-size:1.2vw}