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/* Every study viewport uses a single vertical column. */
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rotate(12deg)}.art-apple{right:1%;bottom:60px;font-size:57px}.home-stats{padding:20px 3px 22px;margin-bottom:25px}.home-stats strong{font-size:23px}.home-stats span{font-size:9px}.section-heading{margin-bottom:14px}.section-heading h2{font-size:14px;line-height:1.6}.section-heading h2>span{font-size:8px;display:block;letter-spacing:1.5px;margin:0 0 4px}.section-caption{font-size:9px;max-width:120px;text-align:right}.level-tabs{gap:6px;display:grid;grid-template-columns:repeat(4,1fr)}.level-tab{font-size:10px;padding:8px 4px;display:flex;flex-direction:column;gap:4px;min-height:43px}.level-tab:first-child{justify-content:center}.level-tab small{font-size:8px}.selected-book{padding:21px 17px;gap:15px;flex-wrap:wrap;border-radius:11px}.book-symbol{height:82px;width:59px;padding:11px 7px}.book-symbol>span{font-size:26px}.book-symbol i{font-size:6px}.book-copy select{font-size:16px;margin-top:4px;width:100%;padding-right:10px}.book-copy p{font-size:9px;max-width:215px;margin-bottom:9px}.book-preview{margin-left:73px;font-size:10px;padding:8px 14px;gap:21px}.book-copy small{font-size:9px}.training-grid{gap:11px}.training-card{padding:18px 16px;min-height:232px;border-radius:11px}.training-card-top i{height:32px;width:32px;font-size:15px}.training-card-top small{font-size:8px;padding:4px 6px}.training-card-top{gap:6px;margin-bottom:21px}.training-de{font-size:8px;letter-spacing:.8px}.training-card>strong{font-size:24px;margin-top:8px}.training-desc{font-size:11px;line-height:1.9}.training-start{font-size:11px;padding-top:17px}.future-card{padding:25px 18px;gap:15px}.future-card h3{font-size:20px}.future-card p{font-size:11px;max-width:220px}.future-icon{width:37px;height:37px;font-size:21px}.future-card>small{font-size:8px}.home-bottom-note{font-size:9px;line-height:1.9}.page-footer{font-size:9px;display:block;line-height:1.9;margin-top:20px;padding-top:14px}.page-footer>span{display:block}.page-footer>span+span{margin-top:6px}.study-top{margin-bottom:16px;font-size:11px}.study-top button{font-size:11px}.deckbar{padding:11px 13px}.deckbar>label{display:none}.deckbar select{font-size:11px;max-width:230px}.deckbar #deckMeta{display:none}.study-nav{justify-content:center;gap:6px;margin-top:14px}.study-nav .nav{font-size:10px;padding:8px 11px}.session-line{margin-top:14px;margin-bottom:13px;font-size:10px}.exercise{padding:20px 18px 0;border-radius:12px}.card-top .eyebrow{font-size:9px}.study-level{font-size:8px}.prompt{margin:25px 0 24px}.prompt-pos{font-size:11px;padding:6px 11px}.prompt h2{font-size:34px;letter-spacing:1px}.prompt p{font-size:11px;line-height:1.9}.answer-wrap input{font-size:23px;height:55px}.specials button{height:32px;width:32px}.specials{gap:6px;margin-bottom:19px}.ink-toolbar{padding:11px}.ink-toolbar small{display:none}.ink-toolbar b{font-size:11px}.ink-toolbar>div{gap:13px}.ink-toolbar button{font-size:10px}.canvas-wrap{height:165px;margin:0 11px}.ink-foot{font-size:9px;padding:9px 11px}.pen-diagnostics{font-size:9px}.answer-actions{margin:21px 0;gap:25px}.answer-actions>.text-button{font-size:11px}.primary{padding:12px 20px;font-size:12px}.exercise-foot{margin:0 -18px;padding:13px 17px;font-size:8px}.learning-panel{padding:24px 20px;border-radius:12px}.word-heading h2{font-size:29px}.learning-panel .grammar-core{font-size:14px}.learning-panel .content-de{font-size:17px}.learning-panel .content-zh{font-size:12px}.learning-panel .section-label{font-size:10px}.meaning-choices{grid-template-columns:1fr;gap:10px}.meaning-option{padding:14px;font-size:14px}.review-tip p{font-size:10px}.review-tip b{font-size:11px}.peek-word{font-size:27px}.preview-word{font-size:12px;gap:15px}.resume-practice{padding:15px}.resume-practice small{font-size:9px}}
.brand-home>span:last-child{display:block}.exercise.is-resolved .ink-block,.exercise.is-resolved .specials{display:none}.exercise.is-resolved .prompt{margin-bottom:20px}.exercise.is-resolved .answer-actions{margin-top:20px}
@media(max-width:480px){.selected-book .book-copy{flex:1 1 calc(100% - 80px)}.selected-book .book-preview{margin-top:0}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;transition:none!important}}
.new-words-section{margin-top:30px}.context-start{width:100%;background:#e6ede2;border:1px solid #d3decc;border-radius:13px;display:flex;align-items:center;gap:22px;padding:26px 29px;text-align:left;color:#355b4f;transition:background .18s}.context-start:hover{background:#dde8d8}.context-start-icon{font-family:Georgia,serif;font-size:65px;line-height:1;color:#8aa28b;flex-shrink:0}.context-start-copy{display:flex;flex-direction:column;gap:9px;flex:1;min-width:0}.context-start-copy small{font-size:9px;letter-spacing:1.8px;color:#7f9581}.context-start-copy strong{font-family:Georgia,"SimSun",serif;font-size:23px;font-weight:500;letter-spacing:1px}.context-start-copy>span{font-size:12px;line-height:1.8;color:#7d927b}.context-start-action{font-size:12px;display:flex;align-items:center;gap:20px;white-space:nowrap}.context-start-action b{font-size:19px;font-weight:400}.context-example{margin:23px 0 0;padding:24px 25px 17px;border:1px solid #e2e8d9;background:#f6f8f1;border-radius:12px;text-align:left}.context-eyebrow{color:#8a9a7d;font-size:10px;letter-spacing:1.5px}.context-example>p{font-family:Georgia,"Segoe UI",serif;font-size:25px;line-height:1.8;color:#375b52;margin:14px 0 17px}.context-listen{border:1px solid #cddcc7;background:#edf2e6;color:#5d7a57;border-radius:20px;padding:9px 14px;font-size:11px}.context-choice-label{font-size:12px!important;text-align:left;margin:20px 0 0!important;color:#7a8a71!important}.prompt:has(.context-example){margin-bottom:20px}.context-example+.context-choice-label{line-height:1.8}
@media(max-width:760px){.context-start{padding:23px;gap:16px}.context-start-copy strong{font-size:21px}.context-start-action{font-size:11px;gap:12px}.context-start-copy>span{font-size:11px}}
@media(max-width:480px){.context-start{padding:22px 19px;flex-wrap:wrap;gap:14px}.context-start-icon{font-size:45px;align-self:flex-start}.context-start-copy small{font-size:8px;letter-spacing:1px}.context-start-copy strong{font-size:19px;line-height:1.6}.context-start-copy>span{font-size:11px;line-height:1.9}.context-start-action{margin-left:47px;font-size:11px;gap:24px}.context-example{padding:20px 16px 16px;border-radius:9px;margin-top:21px}.context-example>p{font-size:22px;line-height:1.8}.context-eyebrow{font-size:9px}.context-listen{font-size:10px}.context-choice-label{font-size:11px!important}}
.ink-candidates{margin:0 13px 12px;border-top:1px solid #e0e7d8;padding-top:11px}.ink-candidate-label{font-size:11px;color:#76886a;margin:0 0 9px}.ink-candidate-options{display:flex;gap:7px;flex-wrap:wrap}.ink-candidate{background:#f6f8f0;border:1px solid #dce5d1;border-radius:7px;padding:7px 11px;font-size:15px;color:#4a6848;max-width:100%;overflow-wrap:anywhere}.ink-candidate.selected{border-color:#8ba780;background:#eaf2e1}.ink-letter-correction{display:flex;gap:7px;align-items:center;flex-wrap:wrap;margin-top:12px;font-size:11px;color:#899477}.ink-letter-correction button{font-size:16px;font-family:Georgia,serif;height:31px;min-width:34px;background:#fffdf4;border:1px solid #dddcc4;border-radius:5px;color:#6f7655}.ink-candidates>small{display:block;color:#8c977e;font-size:10px;line-height:1.9;margin-top:9px}#previewSuccessSound{margin-top:12px}.check-label+.check-label{margin-top:16px}.dictation-listen{font-size:12px;padding:9px 18px}.dictation-status{line-height:1.8}#inkCandidates[hidden]{display:none}
/* Meaning practice: the word and the whole example card are replay controls. */
.word-pronunciation{display:inline-flex;align-items:center;justify-content:center;gap:13px;max-width:100%;padding:4px 0;border:0;background:transparent;color:inherit;font:inherit;letter-spacing:inherit;line-height:inherit;text-align:center;cursor:pointer;border-radius:8px}
.word-pronunciation>span{overflow-wrap:anywhere}.speaker-icon{width:23px;height:23px;flex-shrink:0;color:#6f897c}.word-pronunciation:hover{color:#477262}.word-pronunciation:focus-visible,.example-replay:focus-visible{outline:2px solid #77937d;outline-offset:5px}
button.example-replay{display:block;width:100%;font:inherit;color:inherit;cursor:pointer;appearance:none;text-align:left;transition:background .15s,border-color .15s}.example-replay:hover{background:#edf2e7;border-color:#b8cbb0}.context-sentence{display:block;font-family:Georgia,"Segoe UI",serif;font-size:25px;line-height:1.8;color:#375b52;margin:14px 0 0;overflow-wrap:anywhere}.context-eyebrow{display:block}
@media(max-width:480px){.context-sentence{font-size:22px}.word-pronunciation{gap:10px}.speaker-icon{width:20px;height:20px}}
/* Group goals and stable answer feedback. */
.training-main{display:flex;flex:1;flex-direction:column;align-items:stretch;border:0;background:none;color:inherit;padding:0;text-align:left;min-width:0}.training-main>strong{font-size:25px;font-weight:600;margin:8px 0 9px;letter-spacing:1px}.training-main .training-card-top{width:100%}.training-card .training-start{justify-content:space-between;gap:10px;width:100%;padding-top:22px;align-items:center}.group-start,.goal-edit{border:0;background:transparent;color:inherit;padding:5px 0;font-size:12px;white-space:nowrap;text-align:left}.group-start{display:flex;align-items:center;gap:5px}.goal-edit{font-size:11px;text-decoration:underline;text-underline-offset:4px;opacity:.85}.goal-edit:hover{opacity:1}.group-size{font-size:10px;opacity:.65;margin-top:7px}.training-main:focus-visible,.group-start:focus-visible,.goal-edit:focus-visible{outline:2px solid currentColor;outline-offset:5px;border-radius:4px}.goal-label{display:flex;align-items:center;justify-content:space-between;gap:20px;margin:22px 0;font-size:14px}.goal-label input{width:100px;min-height:44px;padding:9px 12px;border:1px solid #cad5c5;border-radius:7px;color:#385a4d;background:#fbfcf7}#goalError{font-size:12px;color:#a74949}
.meaning-option:disabled.correct{opacity:1;color:#596e59;cursor:default;-webkit-text-fill-color:currentColor}.meaning-option:disabled:not(.correct){opacity:.45}.meaning-option.incorrect,.meaning-option.incorrect.selected{border-color:#bd4e4e;box-shadow:inset 0 0 0 1px #bd4e4e;background:#fcf2ef}.meaning-option:disabled.correct.incorrect{border-color:#7d9e71;box-shadow:none;background:#edf5e5}.meaning-option{transition:border-color .12s,background .12s}.answer-actions{min-height:45px}#feedback[hidden]{display:none}
.learning-effects{position:fixed;inset:0;pointer-events:none;z-index:1200;overflow:hidden}.answer-flower{position:absolute;width:38px;height:38px;color:#df9ab0;pointer-events:none;filter:drop-shadow(0 2px 3px #b0804930)}.answer-flower svg{display:block;width:100%;height:100%}.group-celebration{position:absolute;inset:0;overflow:hidden;pointer-events:none}.confetti{position:absolute;top:0;display:block;border-radius:2px;will-change:transform,opacity}.flower-confetti{border-radius:50% 0 50% 0}
@media(max-width:760px){.training-main>strong{font-size:27px}.training-card .training-start{gap:12px}}
@media(max-width:480px){.training-main>strong{font-size:24px}.training-card{padding:18px 14px;min-height:256px}.training-card .training-start{gap:6px;flex-wrap:wrap;padding-top:18px}.group-start{font-size:11px}.goal-edit{font-size:10px}.group-size{font-size:9px}.goal-label{font-size:13px}}
.exercise.is-resolved .answer-actions{margin-top:24px}
@media(max-width:480px){.exercise.is-resolved .answer-actions{margin-top:21px}}
.previous-word{border:1px solid #d4dfce;background:#f5f7ee;color:#687f62;border-radius:20px;padding:8px 13px;font-size:11px;margin-left:4px;white-space:nowrap}.previous-word:disabled{opacity:.4;cursor:default}.summary-actions{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-top:20px}.summary-actions .secondary{min-height:45px}#previousDialog{width:min(850px,calc(100vw - 32px));max-width:850px;padding:24px 28px}#previousDialog>.dialog-heading{align-items:flex-start}#previousPosition{margin:8px 0 0;font-size:11px!important}#previousContent{padding:12px 8px 18px;max-height:62vh;overflow:auto;box-shadow:none;border:0;background:transparent}.previous-actions{display:flex;justify-content:space-between;align-items:center;gap:16px;border-top:1px solid #e1e6d8;padding-top:18px;margin-top:10px}.previous-actions>div{display:flex;gap:8px}.previous-actions .secondary{font-size:11px;padding:10px 12px}.sound-previews{display:flex;gap:8px;flex-wrap:wrap;margin-top:13px}.sound-previews .secondary{font-size:12px;padding:10px 13px}.sound-volume{display:flex;align-items:center;gap:14px;font-size:12px;color:#718368;margin-top:18px}.sound-volume input{flex:1;min-width:80px;accent-color:#638568}.sound-volume output{min-width:38px;text-align:right}
@media(max-width:480px){.study-nav{gap:2px;justify-content:space-between}.study-nav .nav{padding:8px 7px;font-size:10px;gap:4px}.previous-word{padding:8px 9px;font-size:10px;margin-left:0}#previousDialog{padding:20px 17px}#previousContent{max-height:59vh;padding:10px 2px}.previous-actions{align-items:stretch;flex-direction:column;gap:12px}.previous-actions>div{justify-content:space-between}.previous-actions>.primary{align-self:flex-end}.summary-actions .primary,.summary-actions .secondary{font-size:12px;padding:12px 15px}}