/* Shared paper-like course UI. Course images and exercises remain intact. */
body.course-ui-active{--course-bg:#f8f6f2;--course-paper:#fff;--course-ink:#28343e;--course-muted:#77828b;--course-line:#e9e5df;--course-accent:#497b98;--course-soft:#edf3f5;background:var(--course-bg)!important;color:var(--course-ink)!important}
body.course-ui-active #app{background:var(--course-bg)!important;overflow:visible!important}
html.course-ui-active{background:#f8f6f2!important}
#app .course-ui.pdf-course{aspect-ratio:auto!important}
#app .course-ui .pdf-stage,#app .course-ui .pdf-image-scroll{display:block!important}
#app .course-ui .pdf-image-scroll img{width:var(--course-zoom,100%)!important;min-width:0!important;min-height:0!important}
#app .course-ui{font-family:"PingFang SC","Microsoft YaHei",system-ui,sans-serif!important;color:var(--course-ink)!important;background:var(--course-bg)!important;width:100%!important;max-width:1100px!important;margin:0 auto!important;padding:20px 24px max(28px,env(safe-area-inset-bottom))!important;min-height:100dvh!important;height:auto!important;overflow:visible!important;position:relative!important}
#app .course-ui *{background-image:none!important;text-shadow:none!important;box-shadow:none!important;box-sizing:border-box}
html body #app .course-ui [hidden]{display:none!important}
.course-action-label{position:absolute!important;width:1px!important;height:1px!important;padding:0!important;margin:-1px!important;overflow:hidden!important;clip:rect(0,0,0,0)!important;white-space:nowrap!important;border:0!important}
.course-svg{display:block!important;width:22px!important;height:22px!important;flex:0 0 22px;fill:none!important;stroke:currentColor!important;stroke-width:1.75!important;stroke-linecap:round;stroke-linejoin:round;pointer-events:none}
#app .course-ui button{font-family:inherit!important;cursor:pointer;touch-action:manipulation;transition:background .16s,border-color .16s,transform .16s}
#app .course-ui button:focus-visible{outline:2px solid var(--course-accent)!important;outline-offset:3px!important}
#app .course-ui button:disabled{opacity:.35!important;cursor:default!important}
#app .course-ui button:active:not(:disabled){transform:translateY(1px)!important}
#app .course-ui .course-icon-button,body .audioMini .course-icon-button,body .pdf-fullscreen-view .course-icon-button{position:relative!important;inset:auto!important;display:inline-flex!important;align-items:center!important;justify-content:center!important;gap:0!important;flex:0 0 44px!important;width:44px!important;min-width:44px!important;height:44px!important;min-height:44px!important;max-height:44px!important;margin:0!important;padding:0!important;border:1px solid var(--course-line,#e9e5df)!important;border-radius:13px!important;background:#fff!important;color:var(--course-accent,#497b98)!important;font-size:14px!important;opacity:1;pointer-events:auto!important;aspect-ratio:auto!important;box-shadow:none!important}
#app .course-ui .course-icon-button:hover:not(:disabled){background:var(--course-soft)!important;border-color:#c2d2d9!important}
#app .course-ui .course-icon-button:is(.active,.on,.success),#app .course-ui .course-icon-button[aria-pressed=true]{background:var(--course-soft)!important;color:#2e657f!important;border-color:#b8ced8!important}
#app .course-ui .ps-submit,#app .course-ui .guided-continue,#app .course-ui .ps-continue,#app .course-ui .cn-idiom-finish{background:var(--course-ink)!important;color:#fff!important;border-color:var(--course-ink)!important}
#app .course-ui :is(.course-top,.egl-top,.pdf-course-top){display:flex!important;align-items:center!important;justify-content:space-between!important;gap:12px!important;position:relative!important;inset:auto!important;min-height:56px!important;height:auto!important;aspect-ratio:auto!important;margin:0 0 22px!important;padding:0 0 12px!important;background:transparent!important;border:0!important;border-bottom:1px solid var(--course-line)!important;border-radius:0!important;overflow:visible!important;backdrop-filter:none!important}
#app .course-ui .course-top>img,#app .course-ui .course-top>picture,#app .course-ui .ps-hero-unit,#app .course-ui .cn-hero>img{display:none!important}
#app .course-ui .course-page-title{position:static!important;order:0;margin:0 auto 0 0!important;font-size:18px!important;font-weight:650!important;letter-spacing:.01em;color:var(--course-ink)!important;line-height:1.4!important}
#app .course-ui .course-top .topbar{display:contents!important;position:static!important;pointer-events:auto!important}
#app .course-ui .course-top .course-icon-button:first-child{order:-1}
#app .course-ui .course-top .course-icon-button:last-of-type{order:2}
#app .course-ui .pdf-course-nav,#app .course-ui .egl-nav{display:flex!important;position:static!important;gap:8px!important;pointer-events:auto!important}
#app .course-ui .pdf-course-title{display:block!important;text-align:left!important;flex:1!important}
#app .course-ui .pdf-course-title h1{display:block!important;font-size:18px!important;font-weight:650!important;color:var(--course-ink)!important;margin:0!important;white-space:normal!important}
#app .course-ui .pdf-course-title small{display:none!important}
#app .course-ui .pdf-zoom{display:flex!important;position:static!important;gap:6px!important;background:none!important;padding:0!important}
#app .course-ui .pdf-zoom span{color:var(--course-muted)!important;font-weight:500!important}
#app .course-ui :is(.learnBody,.unitWrap,.extUnitWrap,.knowledgeWrap,.knowledgeBody,.quizWrap,.booksWrap,.cn-knowledge-body,.egl-body,.cn-expand-body,.cn-idiom-body){position:relative!important;inset:auto!important;width:100%!important;max-width:850px!important;min-height:0!important;height:auto!important;margin:0 auto!important;padding:0!important;border:0!important;border-radius:0!important;background:transparent!important;transform:none!important;overflow:visible!important}
#app .course-ui :is(.booksPanel,.knowledgePanel,.extHero,.learnPanel){padding:0!important;margin:0!important;border:0!important;background:transparent!important;border-radius:0!important}
#app .course-ui :is(.unitList,.extUnitList,.knowledgeList,.learningShelf,.cn-knowledge-grid,.cn-knowledge-lessons,.egl-unit-grid,.egl-lesson-grid){display:grid!important;grid-template-columns:repeat(2,minmax(0,1fr))!important;gap:12px!important;margin:16px 0!important;padding:0!important}
#app .course-ui .course-directory-card{position:relative!important;inset:auto!important;display:flex!important;align-items:center!important;gap:14px!important;width:100%!important;max-width:none!important;height:auto!important;min-height:100px!important;padding:20px!important;margin:0!important;border:1px solid var(--course-line)!important;border-radius:18px!important;background:var(--course-paper)!important;text-align:left!important;color:var(--course-ink)!important;opacity:1!important;transform:none!important}
#app .course-ui .course-directory-card:hover{border-color:#bcced5!important;background:#fbfcfc!important}
#app .course-ui .course-directory-card .course-card-arrow{margin-left:auto!important;color:var(--course-muted)!important}
#app .course-ui .course-directory-card :is(.chev,.chevPng,i:last-child,.english-grammar-card>i,.english-grammar-card>em){display:none!important}
#app .course-ui :is(.unitThumb,.cn-knowledge-lesson>img,.egl-lesson>img){width:54px!important;height:66px!important;object-fit:cover!important;border-radius:6px!important;flex-shrink:0}
#app .course-ui :is(.unitName,.extUnitName,.kpTitle,.cn-knowledge-unit b,.cn-knowledge-lesson b,.egl-unit b,.egl-lesson b,.studyName,.course-directory-copy){font-size:16px!important;line-height:1.5!important;font-weight:600!important;color:var(--course-ink)!important}
#app .course-ui :is(.unitMeta,.extUnitMeta,.kpLink,.studyInfo,.cn-knowledge-unit span,.cn-knowledge-lesson span,.egl-unit small,.egl-lesson small){font-size:12px!important;line-height:1.6!important;font-weight:400!important;color:var(--course-muted)!important}
#app .course-ui :is(.unitBadge,.kpNum,.extUnitThumb,.egl-unit-no){display:inline-flex!important;align-items:center!important;justify-content:center!important;width:auto!important;height:auto!important;min-width:34px!important;padding:5px 9px!important;border-radius:8px!important;background:var(--course-soft)!important;color:var(--course-accent)!important;font-size:12px!important;font-weight:600!important}
#app .course-ui :is(.cn-knowledge-title,.egl-heading,.extTitleRow){margin:0 0 24px!important;padding:0!important;color:var(--course-ink)!important}
#app .course-ui :is(.cn-knowledge-title h1,.egl-heading h1,.extTitle){font-size:25px!important;margin:8px 0!important;color:var(--course-ink)!important;font-weight:650!important}
#app .course-ui :is(.cn-knowledge-title p,.egl-heading p){font-size:13px!important;color:var(--course-muted)!important}
#app .course-ui.course-directory{display:grid!important;grid-template-columns:repeat(2,minmax(0,1fr))!important;align-content:start!important;gap:12px!important;padding-top:98px!important}
#app .course-ui .course-directory-title{grid-column:1/-1!important;font-size:26px!important;margin:14px 0!important;color:var(--course-ink)!important}
#app .course-ui.course-directory>.course-icon-button{position:absolute!important;top:20px!important;left:24px!important}
#app .course-ui.course-directory>.course-icon-button:is(.math-preview-home,.entry-home,.home){left:auto!important;right:24px!important}
#app .course-ui :is(.math-preview-image,.english-entry-reference-image,.cn-entry-reference-image){display:none!important}
#app :is(.cn-knowledge-units-landscape,.cn-knowledge-lessons-landscape){display:none!important}
#app .course-ui:is(.cn-knowledge-units-portrait,.cn-knowledge-lessons-portrait){display:block!important}
#app .course-ui :is(.tabs,.knowledgeTabs){display:flex!important;justify-content:flex-start!important;align-items:center!important;gap:8px!important;width:auto!important;max-width:100%!important;margin:0 0 18px!important;padding:0!important;border:0!important;background:transparent!important;border-radius:0!important}
#app .course-ui .learning-radio-inputs .radio{flex:0 0 44px!important;width:44px!important;margin:0!important}
#app .course-ui .learning-radio-inputs .name{display:grid!important;place-items:center!important;width:44px!important;height:44px!important;padding:0!important;background:#fff!important;border:1px solid var(--course-line)!important;border-radius:13px!important;color:var(--course-accent)!important}
#app .course-ui .learning-radio-inputs input:checked+.name{background:var(--course-soft)!important;border-color:#bacfd8!important}
#app .course-ui .learning-radio-inputs input:focus-visible+.name{outline:2px solid var(--course-accent)!important;outline-offset:3px}
#app .course-ui .controls{display:flex!important;gap:12px!important;align-items:center!important;justify-content:space-between!important;margin:0 0 18px!important;padding:0!important;background:none!important;border:0!important}
#app .course-ui .display{display:flex!important;gap:8px!important}
#app .course-ui .count{font-size:18px!important;font-weight:600!important;color:var(--course-ink)!important}
#app .course-ui .count small{display:inline!important;margin-left:10px!important;color:var(--course-muted)!important;font-size:12px!important;font-weight:400!important}
#app .course-ui .list{display:flex!important;flex-direction:column!important;gap:0!important;padding:8px 22px!important;border:1px solid var(--course-line)!important;border-radius:20px!important;background:#fff!important}
#app .course-ui .item{display:grid!important;grid-template-columns:30px minmax(0,1fr) 44px!important;align-items:center!important;gap:14px!important;margin:0!important;padding:20px 0!important;border:0!important;border-bottom:1px solid var(--course-line)!important;background:transparent!important;border-radius:0!important;min-height:96px!important;height:auto!important}
#app .course-ui .item:last-child{border-bottom:0!important}
#app .course-ui .itemNo{position:static!important;padding:0!important;background:none!important;color:#8b99a3!important;font-weight:500!important;font-size:12px!important;width:auto!important;height:auto!important}
#app .course-ui :is(.word,.sentence){font-size:22px!important;line-height:1.65!important;font-weight:550!important;color:var(--course-ink)!important}
#app .course-ui .phon{font-size:13px!important;color:var(--course-muted)!important;font-weight:400!important}
#app .course-ui .zh{font-size:15px!important;line-height:1.7!important;font-weight:400!important;color:#6a7780!important;margin-top:5px!important}
#app .course-ui .hiddenText{color:transparent!important;background:#edf0f0!important}
#app .course-ui .hiddenText *{color:transparent!important}
#app .course-ui .sectionPlayer{margin:0 0 18px!important;padding:16px!important;border:1px solid var(--course-line)!important;border-radius:18px!important;background:#fff!important}
#app .course-ui .rateGroup{display:flex;gap:6px}
#app .course-ui .sectionPlayer button:not(.course-icon-button){border:1px solid var(--course-line)!important;background:#fff!important;color:var(--course-accent)!important;border-radius:10px!important;padding:10px!important}
#app .course-ui :is(.pdf-stage,.pdf-image-scroll){position:relative!important;inset:auto!important;width:100%!important;max-width:850px!important;margin:0 auto!important;padding:0!important;min-height:0!important;max-height:none!important;background:transparent!important;border:0!important;overflow:auto!important}
#app .course-ui .pdf-image-scroll img{display:block!important;max-width:none!important;height:auto!important;border-radius:12px!important;border:1px solid var(--course-line)!important;background:#fff!important;margin:0 auto!important;object-fit:contain!important}
#app .course-ui .pdf-pager{position:sticky!important;bottom:12px!important;display:flex!important;justify-content:space-between!important;align-items:center!important;gap:12px!important;width:min(100%,460px)!important;margin:18px auto 0!important;padding:10px!important;border:1px solid var(--course-line)!important;border-radius:18px!important;background:#ffffffed!important;backdrop-filter:blur(10px)!important}
#app .course-ui .pdf-page-picker{font-size:13px!important;font-weight:500!important;color:var(--course-muted)!important}
#app .course-ui .pdf-page-picker select{border:1px solid var(--course-line)!important;background:white!important;color:var(--course-ink)!important;border-radius:8px!important}
#app .course-ui .pdf-loading{border-radius:10px!important;background:var(--course-ink)!important;font-size:13px!important;font-weight:500!important}
#app .course-ui :is(.ps-card,.ps-finish){width:100%!important;height:auto!important;min-height:0!important;max-width:none!important;margin:0!important;padding:24px!important;border:1px solid var(--course-line)!important;border-radius:22px!important;background:#fff!important;color:var(--course-ink)!important}
#app .course-ui .ps-header{display:flex!important;flex-wrap:wrap!important;align-items:center!important;gap:12px!important;padding:0 0 18px!important;border-bottom:1px solid var(--course-line)!important;min-height:0!important}
#app .course-ui .ps-unit{flex:1 1 280px!important;min-width:0!important}
#app .course-ui .ps-selectors{display:flex!important;gap:8px!important;width:100%!important}
#app .course-ui .ps-unit select{width:100%!important;min-width:0!important;min-height:44px!important;padding:9px 28px 9px 12px!important;border:1px solid var(--course-line)!important;border-radius:11px!important;background:#fbfaf8!important;color:var(--course-ink)!important;font-size:14px!important;font-weight:500!important}
#app .course-ui .ps-progress{position:static!important;display:flex!important;align-items:baseline!important;width:auto!important;height:auto!important;min-width:0!important;padding:0 10px!important;background:none!important;border:0!important;font-size:13px!important;color:var(--course-muted)!important}
#app .course-ui .ps-progress::before,#app .course-ui .ps-progress::after{display:none!important}
#app .course-ui .ps-progress>div{position:static!important;background:none!important;border:0!important;width:auto!important;height:auto!important;display:flex!important;align-items:baseline!important}
#app .course-ui .ps-progress strong{font-size:20px!important;font-weight:600!important;color:var(--course-ink)!important}
#app .course-ui .ps-progress small{display:none!important}
#app .course-ui .ps-actions{display:flex!important;align-items:center!important;justify-content:flex-end!important;gap:7px!important;margin-left:auto!important}
#app .course-ui time{font-size:12px!important;color:var(--course-muted)!important;font-weight:400!important;font-variant-numeric:tabular-nums}
#app .course-ui .ps-grid{position:relative!important;display:grid!important;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr)!important;gap:32px!important;min-height:360px!important;height:auto!important;max-height:none!important;padding:24px 0 0!important;overflow:visible!important}
#app .course-ui .ps-question-side,#app .course-ui .ps-response{min-width:0!important;padding:0!important;height:auto!important;max-height:none!important;overflow:visible!important;position:relative!important;background:none!important;border:0!important}
#app .course-ui .ps-question-side{display:flex!important;flex-direction:column!important;gap:12px!important;justify-content:flex-start!important}
#app .course-ui .ps-ribbon{position:static!important;align-self:flex-start!important;padding:4px 9px!important;border-radius:6px!important;background:var(--course-soft)!important;color:var(--course-accent)!important;font-size:12px!important;font-weight:500!important;transform:none!important}
#app .course-ui .ps-ribbon::before,#app .course-ui .ps-ribbon::after{display:none!important}
#app .course-ui .ps-question{font-size:21px!important;line-height:1.7!important;font-weight:550!important;color:var(--course-ink)!important;margin:0!important;padding:0!important}
#app .course-ui .ps-reading-wrap,#app .course-ui .ps-reading{background:#faf9f6!important;border:0!important;border-radius:12px!important;padding:14px!important;max-height:none!important;font-size:16px!important;line-height:1.9!important;color:var(--course-ink)!important}
#app .course-ui .ps-reading-expand{float:right!important;margin-bottom:8px!important}
#app .course-ui .ps-source{font-size:12px!important;color:var(--course-muted)!important}
#app .course-ui .ps-question-media img{max-width:100%!important;object-fit:contain!important}
#app .course-ui .ps-options{display:grid!important;gap:10px!important}
#app .course-ui .ps-option{display:grid!important;grid-template-columns:28px minmax(0,1fr)!important;align-items:center!important;gap:10px!important;min-height:64px!important;padding:14px 16px!important;border:1px solid var(--course-line)!important;border-radius:13px!important;background:#fff!important;color:var(--course-ink)!important;font-size:17px!important;line-height:1.6!important;text-align:left!important}
#app .course-ui .ps-option b{font-size:14px!important;font-weight:500!important;color:var(--course-muted)!important}
#app .course-ui .ps-option.correct,#app .course-ui .ps-input.correct{border-color:#8db8a4!important;background:#eef7f1!important;color:#376e52!important}
#app .course-ui .ps-option.wrong,#app .course-ui .ps-input.wrong{border-color:#d3a29a!important;background:#fcf1ef!important;color:#995c50!important}
#app .course-ui .ps-input,#app .course-ui .answerInput{width:100%!important;min-height:120px!important;padding:16px!important;border:1px solid #bfccd1!important;border-radius:13px!important;background:#fcfcfb!important;color:var(--course-ink)!important;font-size:18px!important;line-height:1.7!important}
#app .course-ui .ps-input:focus{border-color:var(--course-accent)!important;outline:2px solid #dce9ee!important}
#app .course-ui .ps-entry{gap:12px!important}
#app .course-ui .ps-entry label{font-size:12px!important;font-weight:400!important;color:var(--course-muted)!important}
#app .course-ui .ps-submit{align-self:flex-end!important}
#app .course-ui .ps-answer-panel{position:relative!important;inset:auto!important;width:100%!important;padding:20px!important;border:1px solid var(--course-line)!important;border-radius:15px!important;background:#f8faf9!important;color:var(--course-ink)!important;font-size:16px!important;line-height:1.8!important}
#app .course-ui .ps-answer-panel b{font-size:16px!important;color:var(--course-ink)!important}
#app .course-ui .ps-answer-close{float:right!important}
#app .course-ui .ps-answer-panel p{max-height:none!important}
#app .course-ui .ps-finish{padding:60px 24px!important;text-align:center!important}
#app .course-ui .ps-finish>img,#app .course-ui .ps-victory{display:none!important}
#app .course-ui .ps-finish h1{font-size:26px!important;font-weight:600!important;color:var(--course-ink)!important}
#app .course-ui .ps-finish p{font-size:14px!important;color:var(--course-muted)!important}
#app .course-ui .ps-finish-actions{display:flex!important;justify-content:center!important;gap:10px!important;margin-top:24px!important}
#app .course-ui .ps-reading-modal{position:fixed!important;inset:0!important;height:100dvh!important;display:grid!important;place-items:center!important;background:#26343e55!important;padding:24px!important;pointer-events:auto!important}
#app .course-ui .ps-reading-dialog{width:min(760px,100%)!important;height:auto!important;max-height:85dvh!important;overflow:auto!important;background:#fff!important;border:1px solid var(--course-line)!important;border-radius:20px!important;padding:28px!important;color:var(--course-ink)!important}
#app .course-ui .ps-reading-dialog h2{color:var(--course-ink)!important;font-size:20px!important;font-weight:600!important}
#app .course-ui .ps-ribbon{clip-path:none!important}
#app .course-ui .ps-options{grid-template-columns:1fr!important}
#app .course-ui .pdf-course-title{font-size:17px!important;color:var(--course-ink)!important;font-weight:600!important;line-height:1.5!important;margin:0 0 0 auto!important}
#app .course-ui .ps-feedback{display:flex!important;align-items:center!important;gap:8px!important}
#app .course-ui .ps-feedback:not(.show){visibility:hidden!important}
#app .course-ui .cn-expand-hint{display:grid!important;place-items:center!important;padding:6px!important}
#app .course-ui .ps-match-slot:not([data-value]){display:inline-flex!important;align-items:center!important;justify-content:center!important}
#app .course-ui .ps-word-bank button,#app .course-ui .ps-inline-tf button{border:1px solid var(--course-line)!important;background:#fff!important;color:var(--course-ink)!important;border-radius:10px!important;min-height:44px!important;padding:9px 14px!important;font-size:16px!important;font-weight:500!important}
#app .course-ui .ps-word-bank button.selected{background:var(--course-soft)!important;border-color:#aac7d4!important}
#app .course-ui .quizTitlePng{display:none!important}
#app .course-ui .quizDone{background:#fff!important;border:1px solid var(--course-line)!important;border-radius:20px!important;padding:40px 24px!important}
#app .course-ui .quizDone .big{display:flex!important;justify-content:center!important;margin-bottom:20px!important}
#app .course-ui .quizDone .big .course-svg{width:44px!important;height:44px!important;color:var(--course-accent)!important}
#app .course-ui .option.assetOption{border:1px solid var(--course-line)!important;border-radius:13px!important;background:#fff!important;color:var(--course-ink)!important;padding:16px!important;min-height:62px!important;box-shadow:none!important}
#app .course-ui .option .optionText{font-size:17px!important;line-height:1.6!important;color:var(--course-ink)!important}
#app .course-ui .explainCard{background:#f3f6f6!important;border:1px solid var(--course-line)!important;border-radius:14px!important;padding:20px!important;color:var(--course-ink)!important}
#app .course-ui .typeTag{background:var(--course-soft)!important;color:var(--course-accent)!important;font-size:12px!important;border:0!important}
#app .course-ui .pdf-page-picker{background:none!important;min-height:0!important;grid-column:auto!important;grid-row:auto!important}
#app .course-ui .ps-reading-close{float:right!important;position:sticky!important;top:0!important}
#app .course-ui.oral-suite .ps-card{display:grid!important;grid-template-columns:minmax(0,1fr) minmax(280px,.85fr)!important;grid-template-rows:auto auto minmax(130px,1fr) auto!important;gap:20px 40px!important;min-height:530px!important}
#app .course-ui .oral-status{display:flex!important;flex-wrap:wrap!important;align-items:center!important;justify-content:space-between!important;grid-column:1/-1!important;gap:12px!important;padding-bottom:16px!important;border-bottom:1px solid var(--course-line)!important}
#app .course-ui .oral-pill{min-height:0!important;background:none!important;padding:0!important;color:var(--course-muted)!important;font-size:13px!important;font-weight:500!important}
#app .course-ui .oral-progress-ring{background:var(--course-soft)!important;color:var(--course-accent)!important;width:60px!important;height:60px!important}
#app .course-ui .oral-progress-ring>div{background:#fff!important}
#app .course-ui .oral-type{grid-column:1!important;grid-row:2!important;justify-self:start!important;align-self:start!important;background:var(--course-soft)!important;color:var(--course-accent)!important;padding:5px 10px!important;border-radius:7px!important;font-size:12px!important;font-weight:500!important}
#app .course-ui .oral-question{grid-column:1!important;grid-row:3!important;color:var(--course-ink)!important;line-height:1.8!important;font-size:clamp(27px,3.5vw,44px)!important;font-weight:500!important;min-width:0!important}
#app .course-ui .oral-question.compact{font-size:clamp(23px,2.8vw,34px)!important}
#app .course-ui .oral-answer-wrap{grid-column:1!important;grid-row:4!important;min-width:0!important}
#app .course-ui .oral-answer{height:66px!important;width:100%!important;border:1px solid #b6c9d2!important;border-radius:13px!important;background:#fcfcfb!important;font-size:29px!important;color:var(--course-ink)!important}
#app .course-ui .oral-note{height:auto!important;min-height:25px!important;margin-top:8px!important;font-weight:400!important;font-size:12px!important}
#app .course-ui .oral-keypad{grid-column:2!important;grid-row:2/5!important;display:grid!important;grid-template-columns:repeat(3,minmax(0,1fr))!important;grid-template-rows:repeat(6,minmax(44px,1fr))!important;gap:8px!important;min-height:340px!important}
#app .course-ui .oral-keypad button{display:grid!important;place-items:center!important;border:1px solid var(--course-line)!important;background:#faf9f6!important;border-radius:12px!important;color:var(--course-ink)!important;font-size:23px!important;font-weight:500!important;min-width:0!important;min-height:44px!important;height:auto!important}
#app .course-ui .oral-keypad button.equals{background:var(--course-ink)!important;color:#fff!important;border-color:var(--course-ink)!important}
#app .course-ui .oral-keypad .course-icon-button{width:100%!important;max-height:none!important}
#app .course-ui .oral-keypad .course-svg{width:26px!important;height:26px!important}
#app .course-ui .oral-keypad .course-action-label{display:none!important}
#app .course-ui :is(.cn-expand-heading,.cn-idiom-heading){display:flex!important;flex-wrap:wrap!important;align-items:center!important;gap:12px!important;justify-content:space-between!important;margin:0 0 20px!important}
#app .course-ui :is(.cn-expand-heading h1,.cn-idiom-heading h1){display:none!important}
#app .course-ui :is(.cn-expand-topic,.cn-idiom-topic){color:var(--course-muted)!important;font-size:13px!important;font-weight:400!important}
#app .course-ui :is(.cn-expand-status>b,.cn-idiom-status>b){font-size:12px!important;padding:6px 10px!important;background:var(--course-soft)!important;color:var(--course-accent)!important;font-weight:500!important;border:0!important}
#app .course-ui :is(.cn-expand-card,.cn-idiom-card){border:1px solid var(--course-line)!important;border-radius:22px!important;background:#fff!important;overflow:hidden!important}
#app .course-ui .cn-expand-picture{height:auto!important;aspect-ratio:991/371!important;border:0!important;background:#faf9f6!important}
#app .course-ui .cn-expand-picture img{object-fit:contain!important}
#app .course-ui .cn-expand-fields{padding:22px!important;gap:0!important}
#app .course-ui .cn-expand-row{background:#fff!important;border:0!important;border-bottom:1px solid var(--course-line)!important;border-radius:0!important;grid-template-columns:115px minmax(0,1fr)!important}
#app .course-ui .cn-expand-row:last-child{border-bottom:0!important}
#app .course-ui .cn-expand-label{background:none!important;color:var(--course-muted)!important;font-size:13px!important;font-weight:500!important;justify-content:flex-start!important;text-align:left!important}
#app .course-ui .cn-expand-answer{background:none!important;color:var(--course-ink)!important;font-size:17px!important;font-weight:400!important;min-height:58px!important}
#app .course-ui .cn-expand-hint{background:var(--course-soft)!important;color:var(--course-muted)!important;font-size:12px!important;font-weight:400!important}
#app .course-ui :is(.cn-expand-nav,.cn-idiom-nav){display:flex!important;justify-content:center!important;gap:10px!important;align-items:center!important;margin-top:20px!important}
#app .course-ui .cn-idiom-scroll{background:#f6f7f5!important;padding:36px 20px!important;border:0!important}
#app .course-ui :is(.cn-idiom-seal,.cn-idiom-scroll-tag,.cn-idiom-quote){display:none!important}
#app .course-ui .cn-idiom-chars{display:flex!important;justify-content:center!important;gap:12px!important}
#app .course-ui .cn-idiom-char{display:block!important;background:none!important;border:0!important;width:auto!important;height:auto!important;padding:0!important;font-size:38px!important;line-height:1.6!important;color:var(--course-ink)!important}
#app .course-ui .cn-idiom-texts{display:block!important;padding:28px!important}
#app .course-ui .cn-idiom-panel{border:0!important;border-radius:0!important;background:none!important;padding:0 0 20px!important}
#app .course-ui .cn-idiom-panel:last-child{padding-bottom:0!important}
#app .course-ui .cn-idiom-flag{font-size:12px!important;font-weight:500!important;color:var(--course-accent)!important;padding:0!important;background:none!important;border:0!important}
#app .course-ui .cn-idiom-panel p{font-size:18px!important;line-height:1.9!important;color:var(--course-ink)!important;margin:10px 0 0!important;font-weight:400!important}
#app .course-ui .cn-idiom-hl{background:#edf3f5!important;color:#426b80!important}
#app .course-ui :is(.kpHeader,.quizHead){display:flex!important;align-items:center!important;gap:12px!important;padding:18px 0!important;color:var(--course-ink)!important;background:none!important;border:0!important}
#app .course-ui :is(.kpHeaderTitle,.quizHead){font-size:20px!important;font-weight:600!important}
#app .course-ui :is(.kpArticle,.questionBox){padding:24px!important;background:#fff!important;border:1px solid var(--course-line)!important;border-radius:20px!important;color:var(--course-ink)!important;line-height:1.85!important}
#app .course-ui .kpArticle :is(h2,h3,h4){color:var(--course-ink)!important}
#app .course-ui .kpArticle table{max-width:100%!important}
#app .course-ui .kpPageNav,#app .course-ui .quizNav{display:flex!important;gap:12px!important;align-items:center!important;justify-content:center!important;margin-top:20px!important}
#app .course-ui :is(.kpPageNav>span,.kpPager,.quizProgress){font-size:12px!important;font-weight:400!important;color:var(--course-muted)!important}
#app .course-ui .reviewRow{display:flex!important;justify-content:flex-end!important;margin-top:14px!important}
#app .course-ui .quizHeadIcon{display:none!important}
#app .course-ui .study-course-frame{background:var(--course-bg)!important}
body .pdf-fullscreen-view{background:#f8f6f2!important}
body .pdf-fullscreen-close{z-index:10}
@media(min-width:1500px){#app .course-ui{padding-top:28px!important}}
@media(max-width:700px){
 #app .course-ui{padding:14px 12px max(24px,env(safe-area-inset-bottom))!important}
 #app .course-ui .course-page-title{font-size:16px!important}
 #app .course-ui :is(.course-top,.pdf-course-top){margin-bottom:18px!important;flex-wrap:wrap!important}
 #app .course-ui .pdf-course-top{gap:10px!important}
 #app .course-ui .pdf-course-title{order:3!important;flex-basis:100%!important;padding-top:4px!important}
 #app .course-ui .pdf-zoom{margin-left:auto!important}
 #app .course-ui .pdf-zoom span{font-size:11px!important;min-width:36px!important}
 #app .course-ui :is(.unitList,.extUnitList,.knowledgeList,.learningShelf,.cn-knowledge-grid,.cn-knowledge-lessons,.egl-unit-grid,.egl-lesson-grid){grid-template-columns:1fr!important}
 #app .course-ui.course-directory{grid-template-columns:1fr!important;padding-top:82px!important}
 #app .course-ui.course-directory>.course-icon-button{top:14px!important;left:12px!important}
 #app .course-ui.course-directory>.course-icon-button:is(.math-preview-home,.entry-home,.home){left:auto!important;right:12px!important}
 #app .course-ui .course-directory-card{min-height:86px!important;padding:16px!important}
 #app .course-ui .ps-card{padding:18px 16px!important;border-radius:18px!important}
 #app .course-ui .ps-grid{grid-template-columns:1fr!important;gap:24px!important;min-height:0!important;padding-top:20px!important}
 #app .course-ui .ps-unit{flex-basis:100%!important}
 #app .course-ui .ps-selectors{flex-direction:column!important}
 #app .course-ui .ps-selectors select{flex:auto!important}
 #app .course-ui .ps-progress{padding-left:0!important}
 #app .course-ui .ps-question{font-size:19px!important}
 #app .course-ui .ps-option{font-size:16px!important;min-height:58px!important}
 #app .course-ui .ps-reading-dialog{padding:20px!important}
 #app .course-ui.oral-suite .ps-card{grid-template-columns:minmax(0,1fr)!important;grid-template-rows:auto auto minmax(110px,auto) auto auto!important;gap:14px!important;min-height:0!important}
 #app .course-ui .oral-status{gap:8px!important;padding-bottom:12px!important}
 #app .course-ui .oral-keypad{grid-column:1!important;grid-row:5!important;min-height:330px!important}
 #app .course-ui .oral-question{font-size:29px!important}
 #app .course-ui .oral-question.compact{font-size:24px!important}
 #app .course-ui .list{padding:0 16px!important}
 #app .course-ui .item{grid-template-columns:22px minmax(0,1fr) 44px!important;gap:8px!important;padding:18px 0!important}
 #app .course-ui .word,#app .course-ui .sentence{font-size:19px!important}
 #app .course-ui .zh{font-size:14px!important}
 #app .course-ui .cn-expand-fields{padding:12px!important}
 #app .course-ui .cn-expand-row{grid-template-columns:82px minmax(0,1fr)!important}
 #app .course-ui .cn-expand-answer{font-size:15px!important;padding:10px 8px!important}
 #app .course-ui .cn-idiom-texts{padding:22px!important}
 #app .course-ui .cn-idiom-char{font-size:32px!important}
 #app .course-ui .cn-idiom-panel p{font-size:17px!important}
}
@media(prefers-reduced-motion:reduce){#app .course-ui *,#app .course-ui *::after{transition:none!important;animation:none!important}}

/* Restore the original full-height illustration column on landscape expansion cards. */
@media(min-width:701px){html body #app .course-ui .cn-expand-card{grid-template-columns:minmax(0,1fr) minmax(0,1.05fr)!important;align-items:stretch!important;gap:0!important}html body #app .course-ui .cn-expand-picture{height:100%!important;aspect-ratio:auto!important;min-height:430px!important}html body #app .course-ui .cn-expand-picture img{width:100%!important;height:100%!important;object-fit:cover!important}html body #app .course-ui .cn-expand-fields{align-content:start!important}}
html body #app .course-ui .sentence:not(.hiddenText) .syncWord.active{color:#246686!important;background:#dcecf3!important;border-radius:4px;box-shadow:0 2px 0 #659bb6!important}

/* Settings and review use the same paper surface and SVG navigation as lessons. */
#app .course-ui:is(.study-settings-page,.study-review-page)>header{display:grid!important;grid-template-columns:44px minmax(0,1fr) 44px!important;gap:16px!important;align-items:start!important;width:100%!important;margin:0 0 24px!important;padding:0 0 20px!important;border-bottom:1px solid var(--course-line)!important;background:none!important}
#app .course-ui:is(.study-settings-page,.study-review-page)>header>div{text-align:center!important}
#app .course-ui:is(.study-settings-page,.study-review-page)>header h1{font-size:24px!important;font-weight:600!important;color:var(--course-ink)!important;margin:6px 0!important}
#app .course-ui:is(.study-settings-page,.study-review-page)>header span{font-size:12px!important;font-weight:400!important;color:var(--course-muted)!important}
#app .course-ui:is(.study-settings-page,.study-review-page)>header p{font-size:13px!important;line-height:1.7!important;color:var(--course-muted)!important}
#app .course-ui .study-settings-grid{max-width:none!important;gap:14px!important}
#app .course-ui .study-settings-grid article,#app .course-ui .study-order-settings,#app .course-ui .study-ring-settings,#app .course-ui .study-review-card,#app .course-ui .study-review-empty,#app .course-ui .study-review-entry{border:1px solid var(--course-line)!important;border-radius:19px!important;background:#fff!important;padding:22px!important;color:var(--course-ink)!important}
#app .course-ui .study-settings-grid h2,#app .course-ui .study-order-settings h2,#app .course-ui .study-ring-settings h2,#app .course-ui .study-review-entry h2{font-size:18px!important;font-weight:600!important;color:var(--course-ink)!important;margin:0 0 12px!important}
#app .course-ui .study-settings-grid label{font-size:13px!important;font-weight:500!important;color:#64757f!important;line-height:1.6!important}
#app .course-ui .study-settings-grid select,#app .course-ui .study-settings-grid input:not([type=checkbox]),#app .course-ui .study-review-entry input{background:#fbfaf8!important;color:var(--course-ink)!important;border:1px solid var(--course-line)!important;border-radius:10px!important;font-size:13px!important;font-weight:400!important;min-height:44px!important}
#app .course-ui .study-settings-grid p,#app .course-ui .study-order-settings p,#app .course-ui .study-ring-settings p,#app .course-ui .study-review-entry p{font-size:12px!important;color:var(--course-muted)!important;line-height:1.7!important}
#app .course-ui .study-order-settings,#app .course-ui .study-ring-settings{max-width:none!important;margin:0 0 18px!important}
#app .course-ui .study-order-settings li{border-color:var(--course-line)!important;background:#fcfcfb!important;grid-template-columns:28px minmax(0,1fr) 44px 44px!important}
#app .course-ui .study-order-settings strong{font-size:13px!important;font-weight:500!important;color:var(--course-ink)!important}
#app .course-ui .order-number{background:var(--course-soft)!important;color:var(--course-accent)!important}
#app .course-ui .ring-binding{border-color:var(--course-line)!important}
#app .course-ui .ring-binding summary strong{font-weight:550!important}
#app .course-ui .ring-binding fieldset label{line-height:1.6!important}
#app .course-ui .study-review-entry{display:flex!important;flex-wrap:wrap!important;align-items:center!important;gap:12px!important;margin-bottom:18px!important}
#app .course-ui .study-review-entry>div{flex:1 1 240px!important}
#app .course-ui .study-review-entry h2{margin-bottom:4px!important}
#app .course-ui .study-review-entry p{margin:0!important}
#app .course-ui .study-review-entry input{padding:8px 12px!important;min-width:0!important;max-width:100%!important;font:inherit!important}
#app .course-ui.study-settings-page>footer{display:flex!important;justify-content:center!important;gap:12px!important;margin:24px 0 0!important;width:100%!important}
#app .course-ui .study-review-list{max-width:none!important}
#app .course-ui .study-review-card b{font-size:18px!important;font-weight:600!important;color:var(--course-ink)!important}
#app .course-ui .study-review-card small{font-size:12px!important;color:var(--course-muted)!important}
#app .course-ui .study-review-card p{font-size:14px!important;line-height:1.85!important;color:#64757f!important}
#app .course-ui .study-review-empty{color:var(--course-muted)!important}
@media(max-width:700px){#app .course-ui:is(.study-settings-page,.study-review-page)>header{gap:8px!important}#app .course-ui:is(.study-settings-page,.study-review-page)>header h1{font-size:19px!important}#app .course-ui .study-settings-grid article,#app .course-ui .study-order-settings,#app .course-ui .study-ring-settings,#app .course-ui .study-review-card,#app .course-ui .study-review-entry{padding:16px!important}#app .course-ui .study-review-entry>div{flex-basis:100%!important}}

#app .course-ui .course-svg.provided-icon{stroke-width:2!important}