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.75rem}._feedbackError_18rpy_204{color:var(--color-error);font-weight:600;margin:0 0 .75rem}._explanation_18rpy_210{padding:.75rem;background:#f8f9fa;border-radius:8px;margin-bottom:1rem;font-size:1.08rem;line-height:1.5}._afterFeedback_18rpy_219{margin-top:1rem;padding-top:1rem;border-top:1px solid #eee}._next_18rpy_225{display:inline-block;padding:.5rem 1rem;background:var(--color-primary);color:#fff;border-radius:8px;font-size:1.08rem}._next_18rpy_225:hover{background:var(--color-primary-light);color:#fff;text-decoration:none}._nextBtn_18rpy_240{display:inline-block;padding:.5rem 1rem;background:var(--color-primary);color:#fff;border:none;border-radius:8px;font-size:1.08rem;font-weight:500;cursor:pointer}._nextBtn_18rpy_240:hover{background:var(--color-primary-light)}._page_16cwv_1{padding:.5rem 0}._title_16cwv_5{margin:0 0 .5rem;font-size:1.8rem;color:var(--color-text)}._subtitle_16cwv_11{margin:0 0 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1rem;font-size:1.08rem;color:var(--color-text-muted)}._card_1m7vh_32{background:var(--color-surface);border-radius:var(--radius);box-shadow:var(--shadow);padding:1.5rem;margin-bottom:1rem}._category_1m7vh_40{display:inline-block;font-size:.9rem;color:var(--color-text-muted);background:#f0f0f0;padding:.2rem .5rem;border-radius:6px;margin-bottom:.75rem}._phrase_1m7vh_50{margin:0 0 .35rem;font-size:1.68rem;font-weight:600;color:var(--color-text);line-height:1.4}._phraseHint_1m7vh_58{margin:0 0 1rem;font-size:1.08rem;color:var(--color-text-muted)}._playBtn_1m7vh_64{padding:.5rem 1rem;font-size:1.14rem;background:var(--color-primary);color:#fff;border:none;border-radius:8px;cursor:pointer;margin-bottom:1rem}._playBtn_1m7vh_64:hover:not(:disabled){background:var(--color-primary-light)}._playBtn_1m7vh_64:disabled{opacity:.8;cursor:default}._recordBlock_1m7vh_84{padding:1rem 0 0;border-top:1px solid #eee}._recordLabel_1m7vh_89{margin:0 0 .5rem;font-size:1.02rem;font-weight:600;color:var(--color-text)}._recordError_1m7vh_96{margin:0 0 .5rem;font-size:1.02rem;color:var(--color-error, #c62828)}._recordActions_1m7vh_102{display:flex;flex-wrap:wrap;gap:.5rem;align-items:center}._recordBtn_1m7vh_109{padding:.5rem 1rem;font-size:1.08rem;background:var(--color-primary);color:#fff;border:none;border-radius:8px;cursor:pointer}._stopBtn_1m7vh_119{padding:.5rem 1rem;font-size:1.08rem;background:#c62828;color:#fff;border:none;border-radius:8px;cursor:pointer}._playbackBtn_1m7vh_129{padding:.5rem 1rem;font-size:1.08rem;background:#2e7d32;color:#fff;border:none;border-radius:8px;cursor:pointer}._compareBtn_1m7vh_139{padding:.5rem 1rem;font-size:1.08rem;background:#1565c0;color:#fff;border:none;border-radius:8px;cursor:pointer}._compareBtn_1m7vh_139:hover:not(:disabled){background:#1976d2}._compareBtn_1m7vh_139:disabled{opacity:.8;cursor:default}._recordingHint_1m7vh_158{margin:.5rem 0 0;font-size:1.02rem;color:var(--color-text-muted)}._feedbackBlock_1m7vh_164{margin-top:.75rem;padding:.75rem;background:#f8f9fa;border-radius:8px;border-left:3px solid var(--color-primary)}._feedbackLabel_1m7vh_172{margin:0 0 .25rem;font-size:.96rem;font-weight:600;color:var(--color-primary)}._feedbackTranscript_1m7vh_179{margin:0;font-size:1.14rem;color:var(--color-text)}._feedbackTip_1m7vh_185{margin:.5rem 0 0;font-size:1.02rem;color:var(--color-text-muted)}._navRow_1m7vh_191{display:flex;justify-content:space-between;gap:.75rem;margin-top:1.25rem;padding-top:1rem;border-top:1px solid #eee}._navBtn_1m7vh_200{padding:.5rem 1rem;font-size:1.08rem;background:#f0f0f0;border:1px solid #ddd;border-radius:8px;cursor:pointer}._navBtn_1m7vh_200:hover:not(:disabled){background:#e8f5e9;border-color:var(--color-primary-light)}._navBtn_1m7vh_200:disabled{opacity:.5;cursor:not-allowed}._backLink_1m7vh_219{display:inline-block;margin-top:.5rem;font-size:1.08rem;color:var(--color-primary)}._backLink_1m7vh_219:hover{text-decoration:underline}._page_1lbxn_1{padding:.5rem 0}._back_1lbxn_5{margin:0 0 1rem;font-size:1.08rem}._back_1lbxn_5 a{color:var(--color-primary)}._title_1lbxn_14{margin:0 0 .35rem;font-size:1.62rem;color:var(--color-text)}._hint_1lbxn_20{margin:0 0 1rem;color:var(--color-text-muted);font-size:1.08rem}._progress_1lbxn_26{margin:0 0 1rem;font-size:1.08rem;color:var(--color-text-muted)}._card_1lbxn_32{background:var(--color-surface);border-radius:var(--radius);box-shadow:var(--shadow);padding:1.5rem;margin-bottom:1rem}._letterDisplay_1lbxn_40{display:flex;align-items:baseline;gap:1rem;margin-bottom:1rem}._letterUpper_1lbxn_47{font-size:3.6rem;font-weight:700;color:var(--color-text);font-family:Georgia,serif}._letterLower_1lbxn_54{font-size:3rem;font-weight:600;color:var(--color-text-muted);font-family:Georgia,serif}._canvasWrap_1lbxn_61{margin:1rem 0}._canvas_1lbxn_61{display:block;width:100%;max-width:320px;height:auto;aspect-ratio:320 / 200;border:2px solid #ddd;border-radius:8px;background:#fff;touch-action:none;cursor:crosshair}._buttonRow_1lbxn_78{display:flex;gap:.75rem;margin-top:.75rem}._checkBtn_1lbxn_84{padding:.5rem 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var(--color-primary)}._exampleEn_16yeu_77{display:block;font-size:1.1rem;color:var(--color-text);margin-bottom:.25rem}._exampleZh_16yeu_84{display:block;font-size:.95rem;color:var(--color-text-muted)}._actions_16yeu_90{margin-top:1.5rem}._practiceBtn_16yeu_94{display:inline-block;padding:.6rem 1.25rem;background:var(--color-primary);color:#fff;border-radius:8px;font-size:1.08rem;font-weight:500}._practiceBtn_16yeu_94:hover{background:var(--color-primary-light);color:#fff;text-decoration:none}:root{--color-bg: #1a1a2e;--color-bg-dark: #16213e;--color-bg-light: #0f3460;--color-primary: #FF6B6B;--color-primary-light: #FF8E53;--color-secondary: #4ECDC4;--color-accent: #FFE66D;--color-success: #95E1D3;--color-warning: #FFB347;--color-error: #FF6B6B;--color-text: #1a1a2e;--color-text-muted: rgba(0,0,0,.6);--color-text-dark: #1a1a2e;--texture-grid: linear-gradient(rgba(255,255,255,.03) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.03) 1px, transparent 1px);--radius: 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