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var(--transition),box-shadow var(--transition)}._input_iqi2o_113::placeholder{color:var(--text-muted)}._input_iqi2o_113:focus{border-color:var(--border-active);box-shadow:0 0 0 3px #1e3a8a14}._input_iqi2o_113._error_iqi2o_148{border-color:var(--error)}._eyeBtn_iqi2o_152{position:absolute;right:12px;background:none;border:none;color:var(--text-muted);display:flex;align-items:center;padding:4px;transition:color var(--transition)}._eyeBtn_iqi2o_152:hover{color:var(--text-secondary)}._errorMsg_iqi2o_168{font-size:12px;color:var(--error);margin-top:4px}._forgot_iqi2o_174{text-align:right;font-size:13px;color:var(--accent);cursor:pointer;transition:opacity var(--transition);margin-top:-6px}._forgot_iqi2o_174:hover{opacity:.8}._submitBtn_iqi2o_187{width:100%;padding:13px;background:var(--accent);color:#fff;border-radius:var(--radius-sm);font-size:15px;font-weight:600;letter-spacing:.2px;margin-top:8px;transition:background var(--transition),transform .1s ease,opacity 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var(--transition);-webkit-user-select:none;user-select:none}._moduleHeader_xnlcm_108:hover{background:var(--bg-hover)}._moduleNum_xnlcm_122{width:26px;height:26px;border-radius:6px;background:var(--bg-card);display:flex;align-items:center;justify-content:center;font-size:11px;font-weight:700;color:var(--text-muted);flex-shrink:0;transition:background var(--transition),color var(--transition)}._module_xnlcm_100._hasActive_xnlcm_137 ._moduleNum_xnlcm_122{background:var(--accent-light);color:var(--accent)}._moduleInfo_xnlcm_142{flex:1;min-width:0}._moduleName_xnlcm_147{font-size:13px;font-weight:600;color:var(--text-primary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;line-height:1.3}._moduleMeta_xnlcm_157{font-size:11px;color:var(--text-muted);margin-top:2px}._chevron_xnlcm_163{color:var(--text-muted);transition:transform .25s ease;flex-shrink:0;display:flex;align-items:center}._chevron_xnlcm_163._open_xnlcm_171{transform:rotate(180deg)}._episodes_xnlcm_176{overflow:hidden;transition:max-height .3s ease}._episode_xnlcm_176{display:flex;align-items:center;gap:10px;padding:10px 18px 10px 52px;cursor:pointer;transition:background var(--transition);position:relative}._episode_xnlcm_176:hover{background:var(--bg-hover)}._episode_xnlcm_176._active_xnlcm_195{background:var(--accent-light)}._episode_xnlcm_176._active_xnlcm_195:before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--accent);border-radius:0 2px 2px 0}._episodeStatus_xnlcm_210{width:20px;height:20px;border-radius:50%;flex-shrink:0;display:flex;align-items:center;justify-content:center;font-size:10px}._statusDone_xnlcm_221{background:var(--success);color:#fff}._statusActive_xnlcm_226{background:var(--accent);color:#fff}._statusPending_xnlcm_231{background:var(--bg-card);border:1.5px solid var(--border)}._episodeInfo_xnlcm_236{flex:1;min-width:0}._episodeName_xnlcm_241{font-size:13px;color:var(--text-secondary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;line-height:1.3;transition:color var(--transition)}._episode_xnlcm_176:hover ._episodeName_xnlcm_241,._episode_xnlcm_176._active_xnlcm_195 ._episodeName_xnlcm_241{color:var(--text-primary)}._episode_xnlcm_176._active_xnlcm_195 ._episodeName_xnlcm_241{color:var(--accent);font-weight:500}._episodeDur_xnlcm_261{font-size:11px;color:var(--text-muted);flex-shrink:0}@media(max-width:768px){._sidebar_xnlcm_1{width:100%;min-width:unset;height:auto;max-height:60vh}._list_xnlcm_93{max-height:none}._header_xnlcm_12{padding:14px 16px 12px}._moduleHeader_xnlcm_108{padding:12px 16px}._episode_xnlcm_176{padding:10px 16px 10px 44px}}._wrapper_13au6_1{width:100%;display:flex;flex-direction:column;gap:20px}._playerBox_13au6_8{position:relative;width:100%;aspect-ratio:16 / 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var(--transition)}._question_mn0bf_86._answered_mn0bf_100{border-color:var(--border)}._question_mn0bf_86._correct_mn0bf_104{border-color:#22c55e59;background:#22c55e0a}._question_mn0bf_86._incorrect_mn0bf_109{border-color:#f871714d;background:#f871710a}._questionHeader_mn0bf_114{display:flex;align-items:flex-start;gap:12px;margin-bottom:16px}._questionNum_mn0bf_121{width:26px;height:26px;border-radius:50%;background:var(--accent-light);border:1px solid 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var(--transition);-webkit-user-select:none;user-select:none}._option_mn0bf_157:hover:not(._optionDisabled_mn0bf_176){border-color:var(--border-active);background:var(--bg-hover)}._option_mn0bf_157._optionSelected_mn0bf_181{border-color:var(--border-active);background:var(--accent-light)}._option_mn0bf_157._optionCorrect_mn0bf_186{border-color:#22c55e66;background:#22c55e1a}._option_mn0bf_157._optionWrong_mn0bf_191{border-color:#f8717159;background:#f8717114}._option_mn0bf_157._optionDisabled_mn0bf_176{cursor:default}._optionCircle_mn0bf_200{width:18px;height:18px;border-radius:50%;border:2px solid var(--border);flex-shrink:0;display:flex;align-items:center;justify-content:center;transition:all var(--transition)}._option_mn0bf_157._optionSelected_mn0bf_181 ._optionCircle_mn0bf_200{border-color:var(--accent);background:var(--accent)}._option_mn0bf_157._optionCorrect_mn0bf_186 ._optionCircle_mn0bf_200{border-color:#22c55e;background:#22c55e}._option_mn0bf_157._optionWrong_mn0bf_191 ._optionCircle_mn0bf_200{border-color:#f87171;background:#f87171}._optionDot_mn0bf_227{width:6px;height:6px;border-radius:50%;background:#fff}._optionLabel_mn0bf_234{font-size:13px;color:var(--text-secondary);line-height:1.4;transition:color var(--transition)}._option_mn0bf_157._optionSelected_mn0bf_181 ._optionLabel_mn0bf_234,._option_mn0bf_157._optionCorrect_mn0bf_186 ._optionLabel_mn0bf_234{color:var(--text-primary);font-weight:500}._correctHint_mn0bf_248{margin-top:10px;display:flex;align-items:center;gap:6px;font-size:12px;color:#22c55e;padding:6px 10px;background:#22c55e14;border-radius:6px}._correctHint_mn0bf_248 svg,._scoreBadge_mn0bf_33 svg{width:14px;height:14px;flex-shrink:0}._actions_mn0bf_268{display:flex;gap:12px;align-items:center;padding-top:4px}._submitBtn_mn0bf_275{padding:11px 28px;background:var(--accent);color:#fff;border-radius:var(--radius-sm);font-size:14px;font-weight:600;transition:background var(--transition),transform .1s}._submitBtn_mn0bf_275:hover{background:var(--accent-hover)}._submitBtn_mn0bf_275:active{transform:scale(.98)}._submitBtn_mn0bf_275:disabled{opacity:.45;cursor:not-allowed}._retryBtn_mn0bf_298{padding:11px 20px;background:var(--bg-card);border:1px solid var(--border);color:var(--text-secondary);border-radius:var(--radius-sm);font-size:14px;font-weight:500;transition:all var(--transition)}._retryBtn_mn0bf_298:hover{background:var(--bg-hover);color:var(--text-primary)}._unansweredNote_mn0bf_314{font-size:12px;color:var(--text-muted)}._resultBanner_mn0bf_320{border-radius:var(--radius);padding:20px 24px;display:flex;align-items:center;gap:18px}._resultBannerPass_mn0bf_328{background:#22c55e14;border:1px solid rgba(34,197,94,.25)}._resultBannerFail_mn0bf_333{background:#f8717112;border:1px solid rgba(248,113,113,.2)}._resultIcon_mn0bf_338{width:48px;height:48px;border-radius:50%;display:flex;align-items:center;justify-content:center;flex-shrink:0}._resultIconPass_mn0bf_348{background:#22c55e26}._resultIconFail_mn0bf_352{background:#f871711f}._resultIcon_mn0bf_338 svg{width:24px;height:24px}._resultText_mn0bf_361{flex:1}._resultTitle_mn0bf_365{font-size:16px;font-weight:700;margin-bottom:4px}._resultTitlePass_mn0bf_371{color:#22c55e}._resultTitleFail_mn0bf_372{color:#f87171}._resultDesc_mn0bf_374{font-size:13px;color:var(--text-secondary);line-height:1.5}._resultScore_mn0bf_380{font-size:28px;font-weight:800;letter-spacing:-1px}._resultScorePass_mn0bf_386{color:#22c55e}._resultScoreFail_mn0bf_387{color:#f87171}._layout_bkxwd_1{display:flex;height:100vh;overflow:hidden;background:var(--bg-primary)}._sidebar_bkxwd_9{flex-shrink:0}._main_bkxwd_14{flex:1;display:flex;flex-direction:column;overflow:hidden}._loadingScreen_bkxwd_22{height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:20px;background:var(--bg-primary)}._spinner_bkxwd_32{width:36px;height:36px;border:3px solid var(--border);border-top-color:var(--accent);border-radius:50%;animation:_spin_bkxwd_32 .7s linear infinite}@keyframes _spin_bkxwd_32{to{transform:rotate(360deg)}}._errorMsg_bkxwd_45{font-size:14px;color:var(--error)}._backLink_bkxwd_50{display:flex;align-items:center;gap:6px;padding:8px 16px;background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-sm);font-size:13px;color:var(--text-secondary);transition:all var(--transition)}._backLink_bkxwd_50:hover{background:var(--bg-hover);color:var(--text-primary)}._navbar_bkxwd_69{height:56px;background:var(--bg-secondary);border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;padding:0 24px;flex-shrink:0}._navLeft_bkxwd_80{display:flex;align-items:center;gap:10px}._backBtn_bkxwd_86{width:32px;height:32px;display:flex;align-items:center;justify-content:center;background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-sm);color:var(--text-secondary);transition:all var(--transition);flex-shrink:0}._backBtn_bkxwd_86:hover{background:var(--bg-hover);color:var(--text-primary)}._navLogo_bkxwd_105{display:flex;align-items:center;gap:8px;font-weight:700;font-size:15px;color:var(--text-primary)}._navCourseTitle_bkxwd_114{max-width:280px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;font-weight:600;font-size:14px}._navLogoIcon_bkxwd_123{width:28px;height:28px;background:var(--accent);border-radius:7px;display:flex;align-items:center;justify-content:center}._navLogoIcon_bkxwd_123 svg{width:16px;height:16px;fill:#fff}._navRight_bkxwd_139{display:flex;align-items:center;gap:14px}._navUser_bkxwd_145{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-secondary)}._navAvatar_bkxwd_153{width:32px;height:32px;border-radius:50%;background:var(--accent);display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:700;color:#fff}._logoutBtn_bkxwd_166{display:flex;align-items:center;gap:5px;padding:6px 12px;background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-sm);font-size:12px;color:var(--text-secondary);transition:all var(--transition)}._logoutBtn_bkxwd_166:hover{background:var(--bg-hover);color:var(--text-primary)}._content_bkxwd_185{flex:1;overflow-y:auto;padding:0 32px 32px;display:flex;flex-direction:column;gap:0}._tabs_bkxwd_195{display:flex;gap:4px;padding:20px 0 0;border-bottom:1px solid var(--border);margin-bottom:24px;flex-shrink:0}._tab_bkxwd_195{display:flex;align-items:center;gap:7px;padding:9px 18px;background:none;border:none;border-bottom:2px solid transparent;font-size:14px;font-weight:500;color:var(--text-muted);border-radius:0;margin-bottom:-1px;transition:color var(--transition),border-color var(--transition);position:relative}._tab_bkxwd_195:hover{color:var(--text-secondary)}._tabActive_bkxwd_225{color:var(--accent);border-bottom-color:var(--accent)}._tabDoneDot_bkxwd_230{width:7px;height:7px;border-radius:50%;background:var(--success);display:inline-block;margin-left:2px}._empty_bkxwd_240{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px;color:var(--text-muted);padding:40px;text-align:center}._emptyIcon_bkxwd_252{width:80px;height:80px;border-radius:50%;background:var(--bg-card);display:flex;align-items:center;justify-content:center;margin-bottom:8px}._emptyIcon_bkxwd_252 svg{width:36px;height:36px}._emptyTitle_bkxwd_268{font-size:18px;font-weight:600;color:var(--text-secondary)}._emptyText_bkxwd_274{font-size:14px;color:var(--text-muted);max-width:280px}._navLogoImg_bkxwd_281{height:32px;width:auto;object-fit:contain}@media(max-width:768px){._layout_bkxwd_1{flex-direction:column;height:auto;min-height:100vh;overflow:visible}._sidebar_bkxwd_9{width:100%;min-width:unset;height:auto;border-right:none;border-top:1px solid var(--border);order:2}._main_bkxwd_14{overflow:visible;order:1}._content_bkxwd_185{overflow:visible;padding:0 12px 24px}._navbar_bkxwd_69{padding:0 12px;position:sticky;top:0;z-index:20}._navUser_bkxwd_145 span{display:none}._navCourseTitle_bkxwd_114{max-width:140px;font-size:13px}._navLogoImg_bkxwd_281{height:26px}._tabs_bkxwd_195{padding:12px 0 0;overflow-x:auto;-webkit-overflow-scrolling:touch}._tab_bkxwd_195{white-space:nowrap;padding:8px 14px;font-size:13px}}@media(max-width:480px){._navbar_bkxwd_69{height:48px;padding:0 10px}._backBtn_bkxwd_86{width:28px;height:28px}._logoutBtn_bkxwd_166{padding:5px 8px;font-size:11px}}