._tabBar_x7bva_1{height:calc(var(--tab-height) + var(--safe-bottom));padding-bottom:var(--safe-bottom);background:var(--bg-card);border-top:1px solid var(--border);z-index:100;justify-content:space-around;align-items:center;display:flex;position:fixed;bottom:0;left:0;right:0}._tab_x7bva_1{color:var(--text-hint);flex-direction:column;align-items:center;gap:2px;padding:6px 20px;transition:color .2s;display:flex}._tab_x7bva_1._active_x7bva_26{color:var(--primary)}._label_x7bva_30{font-size:11px;font-weight:500}._quiz_14i7m_1{flex-direction:column;align-items:center;min-height:400px;padding:20px 16px;display:flex}._progress_14i7m_9{color:var(--text-hint);margin-bottom:24px;font-size:13px}._card_14i7m_15{background:var(--bg-card);border-radius:var(--radius-lg);width:100%;box-shadow:var(--shadow-md);text-align:center;padding:28px 20px}._levelTag_14i7m_24{color:var(--primary);background:var(--primary-bg);border-radius:var(--radius-full);margin-bottom:16px;padding:3px 10px;font-size:11px;font-weight:500;display:inline-block}._zhText_14i7m_35{color:var(--text-primary);margin-bottom:24px;font-size:20px;font-weight:600;line-height:1.5}._situationText_14i7m_43{color:var(--text-secondary);margin-bottom:24px;font-size:18px;font-style:italic;font-weight:500;line-height:1.6}._situationTextSmall_14i7m_52{color:var(--text-hint);margin-bottom:8px;font-size:14px;font-style:italic;line-height:1.5}._zhTextSmall_14i7m_60{color:var(--text-secondary);margin-bottom:16px;font-size:16px;font-weight:500}._maskedEn_14i7m_67{color:var(--text-hint);letter-spacing:1px;margin-bottom:20px;font-family:monospace;font-size:16px;line-height:1.6}._revealedZh_14i7m_76{color:var(--text-hint);margin-top:4px;margin-bottom:4px;font-size:14px}._revealButton_14i7m_83{background:var(--primary-bg);color:var(--primary);border-radius:var(--radius-full);-webkit-tap-highlight-color:transparent;align-items:center;gap:6px;padding:10px 24px;font-size:14px;font-weight:500;display:inline-flex}._revealButton_14i7m_83:active{background:var(--primary-light);color:#fff}._revealed_14i7m_76{justify-content:center;align-items:center;gap:10px;animation:.2s _fadeIn_14i7m_1;display:flex}._enText_14i7m_109{color:var(--primary);font-size:18px;font-weight:600;line-height:1.5}._audioButton_14i7m_116{border-radius:var(--radius-full);background:var(--primary-bg);-webkit-tap-highlight-color:transparent;flex-shrink:0;justify-content:center;align-items:center;width:36px;height:36px;display:flex}._ratingButtons_14i7m_128{gap:10px;width:100%;margin-top:28px;animation:.2s _fadeIn_14i7m_1;display:flex}._rateBtn_14i7m_136{border-radius:var(--radius-md);-webkit-tap-highlight-color:transparent;flex-direction:column;flex:1;align-items:center;gap:6px;padding:14px 8px;font-size:13px;font-weight:500;display:flex}._rateBtn_14i7m_136 span:first-child{font-size:24px}._rateBtnInstant_14i7m_153{color:#059669;background:#ecfdf5}._rateBtnInstant_14i7m_153:active{background:#d1fae5}._rateBtnHesitated_14i7m_162{color:#d97706;background:#fff7ed}._rateBtnHesitated_14i7m_162:active{background:#ffedd5}._rateBtnForgot_14i7m_171{color:#dc2626;background:#fef2f2}._rateBtnForgot_14i7m_171:active{background:#fee2e2}._rateBtnSelected_14i7m_180{transition:transform .2s,box-shadow .2s;transform:scale(1.08);box-shadow:0 2px 8px #00000026}._summary_14i7m_187{text-align:center;padding:40px 16px}._summaryIcon_14i7m_192{margin-bottom:16px}._summaryTitle_14i7m_196{color:var(--text-primary);margin-bottom:24px;font-size:22px;font-weight:700}._summaryStats_14i7m_203{justify-content:center;gap:12px;display:flex}._statItem_14i7m_209{background:var(--bg-card);border-radius:var(--radius-md);box-shadow:var(--shadow-sm);flex-direction:column;align-items:center;gap:4px;min-width:80px;padding:16px 20px;display:flex}._statLabel_14i7m_221{color:var(--text-hint);font-size:12px}._statCount_14i7m_226{color:var(--text-primary);font-size:20px;font-weight:700}@keyframes _fadeIn_14i7m_1{0%{opacity:0}to{opacity:1}}._dailyHeader_1vz4f_1{color:#fff;background:linear-gradient(135deg,#667eea 0%,#764ba2 100%);align-items:flex-start;gap:12px;padding:24px 16px 20px;display:flex}._backButton_1vz4f_10{border-radius:var(--radius-full);-webkit-tap-highlight-color:transparent;background:#fff3;flex-shrink:0;justify-content:center;align-items:center;width:44px;height:44px;margin-top:2px;display:flex}._backButton_1vz4f_10:active{background:#ffffff59}._dailyTitle_1vz4f_27{margin-bottom:4px;font-size:22px;font-weight:700}._dailySubtitle_1vz4f_33{opacity:.85;font-size:13px}._sceneList_1vz4f_38{padding:12px 16px;padding-bottom:calc(var(--tab-height) + var(--safe-bottom) + 24px);flex-direction:column;gap:12px;display:flex}._sceneCard_1vz4f_46{background:var(--bg-card);border-radius:var(--radius-md);box-shadow:var(--shadow-sm);overflow:hidden}._sceneHeader_1vz4f_53{cursor:pointer;-webkit-user-select:none;user-select:none;-webkit-tap-highlight-color:transparent;justify-content:space-between;align-items:center;padding:14px 16px;display:flex}._sceneHeader_1vz4f_53:active{background:var(--bg-input)}._sceneHeaderLeft_1vz4f_67{align-items:center;gap:10px;display:flex}._sceneIcon_1vz4f_73{background:var(--primary-bg);border-radius:var(--radius-sm);flex-shrink:0;justify-content:center;align-items:center;width:36px;height:36px;display:flex}._sceneTitle_1vz4f_84{color:var(--text-primary);font-size:15px;font-weight:600}._sceneTitleEn_1vz4f_90{color:var(--text-hint);margin-top:1px;font-size:12px}._sceneCount_1vz4f_96{color:var(--text-hint);background:var(--bg-input);border-radius:var(--radius-full);padding:2px 8px;font-size:12px}._sceneArrow_1vz4f_104{color:var(--text-hint);margin-left:8px;font-size:12px;transition:transform .2s}._sceneArrowOpen_1vz4f_111{transform:rotate(90deg)}._sentenceList_1vz4f_115{border-top:1px solid var(--border);padding:8px 0}._sentenceItem_1vz4f_120{-webkit-tap-highlight-color:transparent;padding:10px 16px}._sentenceRow_1vz4f_125{align-items:center;gap:8px;display:flex}._sentenceText_1vz4f_131{flex:1;min-width:0}._sentenceEn_1vz4f_136{color:var(--text-primary);font-size:15px;font-weight:500;line-height:1.5}._sentenceZh_1vz4f_143{color:var(--text-secondary);margin-top:2px;font-size:13px}._playButton_1vz4f_150{border-radius:var(--radius-full);background:var(--primary-bg);-webkit-tap-highlight-color:transparent;flex-shrink:0;justify-content:center;align-items:center;width:36px;height:36px;transition:background .15s;display:flex}._playButton_1vz4f_150:active{background:var(--primary-light)}._playButtonActive_1vz4f_167{background:var(--primary)}._playButtonActive_1vz4f_167 svg{color:#fff}._popoverSentenceRow_1vz4f_175{align-items:center;gap:8px;display:flex}._popoverSentenceRow_1vz4f_175>div{flex:1}._keywordHighlight_1vz4f_186{color:var(--primary);text-underline-offset:3px;cursor:pointer;-webkit-text-decoration:underline dotted;text-decoration:underline dotted}._keywordPopoverOverlay_1vz4f_195{z-index:200;background:#0000004d;justify-content:center;align-items:flex-end;animation:.15s _fadeIn_1vz4f_1;display:flex;position:fixed;inset:0}._keywordPopover_1vz4f_195{background:var(--bg-card);border-radius:var(--radius-lg) var(--radius-lg) 0 0;padding:20px 20px calc(20px + var(--safe-bottom));width:100%;max-width:500px;animation:.2s _slideUp_1vz4f_1}._keywordPopoverWord_1vz4f_218{color:var(--primary);margin-bottom:8px;font-size:20px;font-weight:700}._keywordPopoverMeaning_1vz4f_225{color:var(--text-primary);font-size:15px;line-height:1.6}._keywordPopoverContext_1vz4f_231{color:var(--text-secondary);border-top:1px solid var(--border);margin-top:12px;padding-top:12px;font-size:13px;line-height:1.5}._keywordPopoverClose_1vz4f_240{background:var(--bg-input);border-radius:var(--radius-sm);width:100%;color:var(--text-secondary);text-align:center;margin-top:16px;padding:12px;font-size:15px;font-weight:500;display:block}@keyframes _fadeIn_1vz4f_1{0%{opacity:0}to{opacity:1}}@keyframes _slideUp_1vz4f_1{0%{transform:translateY(100%)}to{transform:translateY(0)}}._sceneTabs_1vz4f_264{border-bottom:1px solid var(--border);padding:0 16px;display:flex}._sceneTab_1vz4f_264{color:var(--text-hint);text-align:center;-webkit-tap-highlight-color:transparent;flex:1;padding:10px 0;font-size:13px;font-weight:500;position:relative}._sceneTabActive_1vz4f_281{color:var(--primary);font-weight:600}._sceneTabActive_1vz4f_281:after{content:"";background:var(--primary);border-radius:1px;height:2px;position:absolute;bottom:0;left:20%;right:20%}._dialogueSection_1vz4f_298{padding:12px 12px 8px}._dialogueExchange_1vz4f_302{margin-bottom:12px}._dialogueBubbleRow_1vz4f_306{margin-bottom:4px;display:flex}._dialogueBubbleRowStaff_1vz4f_311{justify-content:flex-start}._dialogueBubbleRowYou_1vz4f_315{justify-content:flex-end}._dialogueBubble_1vz4f_306{border-radius:12px;max-width:78%;padding:8px 12px;position:relative}._dialogueBubbleStaff_1vz4f_326{background:var(--bg-input);border-bottom-left-radius:4px}._dialogueBubbleYou_1vz4f_331{background:var(--primary);border-bottom-right-radius:4px}._dialogueBubbleEn_1vz4f_336{color:var(--text-primary);font-size:14px;font-weight:500;line-height:1.4}._dialogueBubbleYou_1vz4f_331 ._dialogueBubbleEn_1vz4f_336{color:#fff}._dialogueBubbleZh_1vz4f_347{color:var(--text-secondary);margin-top:2px;font-size:12px;line-height:1.4}._dialogueBubbleYou_1vz4f_331 ._dialogueBubbleZh_1vz4f_347{color:#ffffffbf}._dialogueBubbleYou_1vz4f_331 ._keywordHighlight_1vz4f_186{color:#fff;text-decoration-style:solid;text-decoration-color:#fffc}._dialogueBubblePlay_1vz4f_364{border-radius:var(--radius-full);-webkit-tap-highlight-color:transparent;flex-shrink:0;justify-content:center;align-self:center;align-items:center;width:44px;height:44px;display:flex}._dialogueBubbleRowStaff_1vz4f_311 ._dialogueBubblePlay_1vz4f_364{margin-left:4px}._dialogueBubbleRowYou_1vz4f_315 ._dialogueBubblePlay_1vz4f_364{order:-1;margin-right:4px}._header_1d142_1{padding:14px 16px;padding-top:calc(14px + env(safe-area-inset-top));border-bottom:1px solid var(--border);justify-content:center;align-items:center;display:flex;position:relative}._exitBtn_1d142_11{border-radius:var(--radius-full);-webkit-tap-highlight-color:transparent;justify-content:center;align-items:center;width:32px;height:32px;display:flex;position:absolute;left:12px}._exitBtn_1d142_11:active{background:var(--bg-input)}._headerTitle_1d142_27{color:var(--text-primary);font-size:16px;font-weight:600}._progressBarWrap_1d142_34{background:var(--bg-input);height:3px}._progressBarFill_1d142_39{background:var(--primary);border-radius:0 2px 2px 0;height:100%;transition:width .4s}._stepContent_1d142_46{padding:8px 16px;padding-bottom:calc(var(--safe-bottom) + 80px)}._countdownBar_1d142_52{background:var(--bg-input);border-radius:2px;width:100%;height:3px;margin-top:16px;overflow:hidden}._countdownFill_1d142_61{background:var(--primary);border-radius:2px;width:100%;height:100%;animation:linear forwards _countdown_1d142_52}@keyframes _countdown_1d142_52{0%{width:100%}to{width:0%}}._sentenceSlide_1d142_75{animation:.25s _fadeSlideIn_1d142_1}@keyframes _fadeSlideIn_1d142_1{0%{opacity:0;transform:translate(20px)}to{opacity:1;transform:translate(0)}}._phaseFade_1d142_85{animation:.15s _phaseFadeIn_1d142_1}@keyframes _phaseFadeIn_1d142_1{0%{opacity:0}to{opacity:1}}._fixedBottom_1d142_95{padding:12px 16px;padding-bottom:calc(12px + var(--safe-bottom));background:var(--bg-page);border-top:1px solid var(--border);z-index:50;position:fixed;bottom:0;left:0;right:0}._emptyState_1d142_107{color:var(--text-secondary);flex-direction:column;justify-content:center;align-items:center;gap:16px;padding:80px 16px;font-size:16px;display:flex}._discoverHeader_1d142_119{text-align:center;margin-bottom:20px}._discoverScene_1d142_124{color:var(--text-primary);margin-bottom:4px;font-size:24px;font-weight:700}._discoverCount_1d142_131{color:var(--text-hint);font-size:14px}._sceneContextBox_1d142_137{background:var(--bg-card);border-radius:var(--radius-md);border-left:3px solid var(--primary-light);align-items:flex-start;gap:8px;margin-bottom:16px;padding:14px 16px;display:flex}._sceneContextIcon_1d142_148{flex-shrink:0;margin-top:2px}._sceneContextText_1d142_153{color:var(--text-secondary);font-size:14px;font-style:italic;line-height:1.6}._previewList_1d142_160{background:var(--bg-card);border-radius:var(--radius-md);box-shadow:var(--shadow-sm);flex-direction:column;gap:2px;margin-bottom:24px;display:flex;overflow:hidden}._previewItem_1d142_171{align-items:center;gap:10px;padding:12px 14px;display:flex}._previewNum_1d142_178{border-radius:var(--radius-full);background:var(--primary-bg);width:22px;height:22px;color:var(--primary);flex-shrink:0;justify-content:center;align-items:center;font-size:12px;font-weight:600;display:flex}._previewText_1d142_192{flex:1;min-width:0}._previewEn_1d142_197{color:var(--text-primary);font-size:14px;font-weight:500}._previewZh_1d142_203{color:var(--text-hint);margin-top:1px;font-size:12px}._miniPlay_1d142_209{border-radius:var(--radius-full);-webkit-tap-highlight-color:transparent;flex-shrink:0;justify-content:center;align-items:center;width:44px;height:44px;display:flex}._guessCard_1d142_221{background:var(--bg-card);border-radius:var(--radius-lg);box-shadow:var(--shadow-md);text-align:center;margin-bottom:24px;padding:36px 20px}._guessPrompt_1d142_230{color:var(--text-hint);margin-top:16px;font-size:14px;font-style:italic}._cardProgress_1d142_238{text-align:center;color:var(--text-hint);margin-bottom:16px;font-size:13px}._understandCard_1d142_245{background:var(--bg-card);border-radius:var(--radius-lg);box-shadow:var(--shadow-md);text-align:center;margin-bottom:16px;padding:32px 20px}@keyframes _slideReveal_1d142_1{0%{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}._enLarge_1d142_259{color:var(--text-primary);margin-bottom:8px;font-size:22px;font-weight:600;line-height:1.5}._chunkHighlight_1d142_268{text-decoration:underline;-webkit-text-decoration-color:var(--primary-light);text-decoration-color:var(--primary-light);text-underline-offset:4px;text-decoration-thickness:2px}._stressBold_1d142_277{color:var(--primary);text-transform:uppercase;font-size:1.05em;font-weight:800}._keywordBar_1d142_285{flex-wrap:wrap;justify-content:center;gap:8px;margin-top:16px;display:flex}._keywordChip_1d142_293{border-radius:var(--radius-full);background:var(--primary-bg);color:var(--primary);-webkit-tap-highlight-color:transparent;padding:4px 12px;font-size:13px;font-weight:500}._keywordChip_1d142_293:active{background:var(--primary-light);color:#fff}._teachCard_1d142_309{background:var(--bg-card);border-radius:var(--radius-md);border:1px solid var(--border);margin-bottom:20px;padding:16px}._teachTitle_1d142_317{color:var(--text-primary);margin-bottom:12px;font-size:14px;font-weight:600}._teachSection_1d142_324{color:var(--text-secondary);margin-bottom:10px;font-size:14px;line-height:1.6}._teachSection_1d142_324:last-child{margin-bottom:0}._teachWrong_1d142_335{color:#dc2626;margin-bottom:4px;font-size:14px}._teachRight_1d142_341{color:#059669;font-size:14px;line-height:1.6}._teachLabel_1d142_347{color:var(--text-primary);align-items:center;gap:4px;margin-bottom:4px;font-size:14px;font-weight:500;display:flex}._teachLabelIcon_1d142_357{flex-shrink:0}._situationBox_1d142_362{color:var(--text-secondary);text-align:left;align-items:flex-start;gap:6px;margin-bottom:16px;font-size:14px;font-style:italic;line-height:1.5;display:flex}._zhLarge_1d142_374{color:var(--text-secondary);margin-bottom:20px;font-size:16px}._zhMuted_1d142_380{color:var(--text-hint);margin-bottom:24px;font-size:14px}._playLarge_1d142_386{border-radius:var(--radius-full);background:var(--primary-bg);-webkit-tap-highlight-color:transparent;justify-content:center;align-items:center;width:56px;height:56px;transition:background .15s;display:inline-flex}._playLarge_1d142_386:active{background:var(--primary)}._playSmall_1d142_402{border-radius:var(--radius-full);background:var(--bg-input);color:var(--text-hint);-webkit-tap-highlight-color:transparent;align-items:center;gap:6px;padding:8px 16px;font-size:13px;display:inline-flex}._imitateCard_1d142_415{background:var(--bg-card);border-radius:var(--radius-lg);box-shadow:var(--shadow-md);text-align:center;margin-bottom:24px;padding:32px 20px}._imitateCardFollow_1d142_424{box-shadow:none;background:#eff6ff;border:1px solid #dbeafe}._imitateCardSpeak_1d142_431{box-shadow:none;background:#fefce8;border:1px solid #fef08a}._phaseLabel_1d142_438{color:var(--primary);margin-bottom:20px;font-size:16px;font-weight:600}._phaseDots_1d142_445{justify-content:center;gap:6px;margin-top:20px;display:flex}._phaseDot_1d142_445{background:var(--bg-input);border-radius:4px;width:8px;height:8px;transition:background .2s}._phaseDotActive_1d142_460{background:var(--primary)}._hiddenEn_1d142_465{color:var(--text-hint);letter-spacing:4px;-webkit-user-select:none;user-select:none;margin-bottom:8px;font-size:22px}._speakActions_1d142_473{justify-content:center;gap:10px;margin-top:4px;display:flex}._extendList_1d142_481{flex-direction:column;gap:4px;margin-top:6px;display:flex}._extendItem_1d142_488{color:var(--text-secondary);border-left:2px solid var(--border);padding-left:8px;font-size:13px;line-height:1.6}._primaryBtn_1d142_497{background:var(--primary);color:#fff;border-radius:var(--radius-md);text-align:center;-webkit-tap-highlight-color:transparent;width:100%;padding:14px;font-size:16px;font-weight:600;display:block}._primaryBtn_1d142_497:active{opacity:.85}._primaryBtnDisabled_1d142_514{opacity:.4;cursor:not-allowed}._secondaryBtn_1d142_519{background:var(--bg-input);width:100%;color:var(--text-secondary);border-radius:var(--radius-md);text-align:center;-webkit-tap-highlight-color:transparent;margin-top:12px;padding:14px;font-size:15px;font-weight:500;display:block}._secondaryBtn_1d142_519:active{background:var(--border)}._reviewIntro_1d142_538{justify-content:center;align-items:center;gap:10px;padding:16px 0 8px;display:flex}._reviewIntroText_1d142_546{color:var(--text-primary);font-size:16px;font-weight:600}._completedPage_1d142_553{padding:60px 24px;padding-bottom:calc(var(--tab-height) + var(--safe-bottom) + 24px);flex-direction:column;align-items:center;display:flex}._completedIcon_1d142_561{margin-bottom:16px}._completedTitle_1d142_565{color:var(--text-primary);margin-bottom:28px;font-size:24px;font-weight:700}._completedStats_1d142_572{flex-direction:column;gap:12px;width:100%;max-width:280px;margin-bottom:32px;display:flex}._completedStatItem_1d142_581{background:var(--bg-card);border-radius:var(--radius-md);box-shadow:var(--shadow-sm);color:var(--text-primary);align-items:center;gap:10px;padding:14px 16px;font-size:15px;display:flex}._completedHint_1d142_593{color:var(--text-hint);margin-bottom:20px;font-size:13px}._subtitle_ykcz5_1{color:var(--text-hint);font-size:13px;font-weight:400}._foundationLeft_ykcz5_7{align-items:center;gap:12px;display:flex}._foundationIcon_ykcz5_13{border-radius:var(--radius-sm);width:44px;height:44px;box-shadow:var(--shadow-sm);background:#fff;justify-content:center;align-items:center;display:flex}._foundationTitle_ykcz5_24{font-size:15px;font-weight:600}._foundationDesc_ykcz5_29{color:var(--text-secondary);margin-top:2px;font-size:12px}._foundationRight_ykcz5_35{align-items:center;gap:4px;display:flex}._sectionTitle_ykcz5_41{margin-bottom:12px;font-size:16px;font-weight:600}._categoryList_ykcz5_47{flex-direction:column;gap:10px;margin-bottom:20px;display:flex}._categoryCard_ykcz5_54{background:var(--bg-card);border-radius:var(--radius-md);text-align:left;width:100%;box-shadow:var(--shadow-sm);justify-content:space-between;align-items:center;padding:14px 16px;transition:transform .15s;display:flex}._categoryCard_ykcz5_54:active{transform:scale(.98)}._dailyCards_ykcz5_72{gap:10px;margin-bottom:24px;display:flex}._dailyCard_ykcz5_72{background:var(--bg-card);border-radius:var(--radius-md);box-shadow:var(--shadow-sm);text-align:left;-webkit-tap-highlight-color:transparent;flex:1;align-items:center;gap:10px;padding:14px 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0;display:flex}._progressLabel_t87w9_76{flex-shrink:0;width:48px;font-size:14px;font-weight:500}._progressBar_t87w9_83{background:var(--bg-input);border-radius:4px;flex:1;height:8px;overflow:hidden}._progressFill_t87w9_91{background:var(--primary);border-radius:4px;height:100%;transition:width .4s}._progressPercent_t87w9_98{color:var(--primary);text-align:right;width:36px;font-size:13px;font-weight:600}._dangerBtn_t87w9_106{color:var(--danger);background:var(--danger-bg);border-radius:var(--radius-md);align-items:center;gap:8px;width:100%;padding:12px 16px;font-size:14px;display:flex}:root{--primary:#4f46e5;--primary-light:#818cf8;--primary-bg:#eef2ff;--success:#059669;--success-bg:#ecfdf5;--warning:#d97706;--warning-bg:#fffbeb;--danger:#dc2626;--danger-bg:#fef2f2;--text-primary:#1e293b;--text-secondary:#64748b;--text-hint:#94a3b8;--bg-page:#f8fafc;--bg-card:#fff;--bg-input:#f1f5f9;--border:#e2e8f0;--shadow-sm:0 1px 3px #0000000f;--shadow-md:0 4px 12px #00000014;--radius-sm:8px;--radius-md:12px;--radius-lg:16px;--radius-full:9999px;--tab-height:56px;--header-height:52px;--safe-top:env(safe-area-inset-top);--safe-bottom:env(safe-area-inset-bottom)}*,:before,:after{box-sizing:border-box;margin:0;padding:0}html{-webkit-text-size-adjust:100%;-webkit-tap-highlight-color:transparent;font-size:16px}body{color:var(--text-primary);background:var(--bg-page);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;line-height:1.6;overflow-x:hidden}button{cursor:pointer;font:inherit;color:inherit;background:0 0;border:none}input{font:inherit;border:none;outline:none}a{color:inherit;text-decoration:none}.page{min-height:100dvh;padding-top:var(--safe-top);flex-direction:column;display:flex}.page-header{height:var(--header-height);background:var(--bg-card);border-bottom:1px solid var(--border);z-index:50;justify-content:space-between;align-items:center;padding:12px 16px;display:flex;position:sticky;top:0}.page-header h1{font-size:17px;font-weight:600}.page-content{padding:16px;padding-bottom:calc(var(--tab-height) + var(--safe-bottom) + 24px);flex:1;overflow-y:auto}body.learning-active nav[class*=tabBar]{display:none}body.learning-active .page-content{padding-bottom:calc(var(--safe-bottom) + 24px)}