._btn_1q9db_1{background:var(--blue);color:#fff;min-height:48px;box-shadow:0 4px 0 var(--blue-dark);border:0;border-radius:14px;justify-content:center;align-items:center;gap:8px;padding:10px 22px;font-size:17px;font-weight:700;line-height:1.2;text-decoration:none;transition:transform 60ms,box-shadow 60ms,filter .15s;display:inline-flex}._btn_1q9db_1:hover:not(:disabled){filter:brightness(1.06)}._btn_1q9db_1:active:not(:disabled){box-shadow:0 1px 0 var(--blue-dark);transform:translateY(3px)}._btn_1q9db_1:disabled{color:#98a2b3;background:#e1e4ea;box-shadow:0 4px #c9ced8}._ok_1q9db_35:not(:disabled){background:var(--ok);box-shadow:0 4px 0 var(--ok-dark)}._ok_1q9db_35:active:not(:disabled){box-shadow:0 1px 0 var(--ok-dark)}._stage_1q9db_44:not(:disabled){background:var(--stage);box-shadow:0 4px 0 color-mix(in srgb, var(--stage) 72%, #000)}._stage_1q9db_44:active:not(:disabled){box-shadow:0 1px 0 color-mix(in srgb, var(--stage) 72%, #000)}._ghost_1q9db_53:not(:disabled){background:var(--surface);color:var(--ink);box-shadow:inset 0 0 0 2px var(--line-strong), 0 4px 0 var(--line-strong)}._ghost_1q9db_53:active:not(:disabled){box-shadow:inset 0 0 0 2px var(--line-strong), 0 1px 0 var(--line-strong)}._danger_1q9db_63:not(:disabled){background:var(--surface);color:var(--no-dark);box-shadow:inset 0 0 0 2px var(--no), 0 4px 0 var(--no)}._danger_1q9db_63:active:not(:disabled){box-shadow:inset 0 0 0 2px var(--no), 0 1px 0 var(--no)}._small_1q9db_73{border-radius:12px;min-height:38px;padding:6px 14px;font-size:15px}._zh_1q9db_80{color:var(--muted);font-size:.86em;font-weight:400}._zhBlock_1q9db_86{margin-top:2px;display:block}._stars_1q9db_91{vertical-align:middle;gap:2px;display:inline-flex}._starOn_1q9db_97{color:var(--yellow);fill:var(--yellow)}._starOff_1q9db_102{color:var(--line-strong);fill:none}._speak_1q9db_107{background:var(--blue-soft);width:34px;height:34px;color:var(--blue-dark);border:0;border-radius:50%;flex:none;place-items:center;display:inline-grid}._speak_1q9db_107:hover{background:#d8e5ff}._pics_1q9db_123{flex-wrap:wrap;gap:12px;margin-bottom:16px;display:flex}._pic_1q9db_123{border:2px solid var(--line-strong);border-radius:var(--radius-sm);background:var(--surface);letter-spacing:4px;text-align:center;flex:150px;place-items:center;min-height:104px;padding:14px 10px;font-size:40px;line-height:1.2;display:grid;position:relative}._picNo_1q9db_146{background:var(--ink);color:#fff;letter-spacing:0;border-radius:50%;place-items:center;width:24px;height:24px;font-size:13px;font-weight:700;display:grid;position:absolute;top:6px;left:8px}._card_1q9db_162{border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);box-shadow:var(--shadow);padding:22px}._chip_1q9db_170{background:var(--paper-2);color:var(--ink);border-radius:999px;align-items:center;gap:6px;padding:4px 12px;font-size:14px;font-weight:600;display:inline-flex}._page_1q9db_182{max-width:980px;margin:0 auto;padding:28px 20px 72px}._narrow_1q9db_188{max-width:780px}._pageTitle_1q9db_192{font-family:var(--display);font-size:30px;line-height:1.25}._lead_1q9db_198{color:var(--muted);margin-top:6px;font-size:17px}@media (width<=640px){._page_1q9db_182{padding:18px 14px 96px}._pageTitle_1q9db_192{font-size:24px}._pics_1q9db_123{gap:6px}._pic_1q9db_123{letter-spacing:0;white-space:nowrap;flex:1 1 0;min-width:0;min-height:84px;padding:28px 2px 10px;font-size:18px}}._stats_mrc5u_1{flex-wrap:wrap;gap:8px;margin-top:18px;display:flex}._list_mrc5u_8{gap:14px;margin-top:18px;display:grid}._empty_mrc5u_14{gap:16px;margin-top:22px;font-size:18px;display:grid}._piece_mrc5u_21{padding:16px 20px}._pieceHead_mrc5u_25{text-align:left;background:0 0;border:0;align-items:center;gap:10px;width:100%;padding:0;display:flex}._pieceHead_mrc5u_25>svg:first-child{color:var(--faint);flex:none}._pieceTitle_mrc5u_41{flex:1;min-width:0;font-size:19px;font-weight:700;line-height:1.3}._pieceTitle_mrc5u_41 small{color:var(--muted);font-size:14px;font-weight:400;display:block}._preview_mrc5u_56{color:var(--muted);text-overflow:ellipsis;white-space:nowrap;margin:8px 0 0 30px;overflow:hidden}._body_mrc5u_64{gap:14px;margin-top:14px;display:grid}._promptLine_mrc5u_70{border-left:4px solid var(--line-strong);color:var(--muted);padding-left:12px;font-size:15px}._text_mrc5u_77{white-space:pre-line;background-color:#fffdf6;background-image:repeating-linear-gradient(#0000,#0000 33px,#d9e4f4 33px 34px);background-position:0 10px;border-radius:12px;padding:10px 18px;font-size:19px;line-height:34px}._planNotes_mrc5u_88{background:var(--yellow-soft);border-radius:12px;gap:4px;margin:0;padding:12px 14px;font-size:15px;display:grid}._planNotes_mrc5u_88 div{gap:10px;display:flex}._planNotes_mrc5u_88 dt{width:38%;color:var(--muted);flex:none;font-weight:600}._planNotes_mrc5u_88 dd{margin:0}._tools_mrc5u_114{flex-wrap:wrap;align-items:center;gap:10px;display:flex}._review_mrc5u_121{border-top:1px dashed var(--line-strong);gap:8px;padding-top:14px;display:grid}._review_mrc5u_121 h4{color:var(--muted);font-size:15px}._starPicker_mrc5u_133{gap:4px;display:flex}._starPicker_mrc5u_133 button{background:0 0;border:0;padding:2px}._starOn_mrc5u_144{color:var(--yellow-dark);fill:var(--yellow)}._starOff_mrc5u_149{color:var(--line-strong)}._note_mrc5u_153{border:2px solid var(--line-strong);background:var(--surface);resize:vertical;border-radius:12px;width:100%;padding:10px 14px}@media print{._closed_mrc5u_164,._stats_mrc5u_1,._tools_mrc5u_114,._starPicker_mrc5u_133,._pieceHead_mrc5u_25>svg:first-child{display:none}._piece_mrc5u_21{box-shadow:none;border:0}._note_mrc5u_153{border:0;padding:0}}._panel_ztls0_1{gap:16px;display:grid}._kicker_ztls0_6{color:var(--stage);letter-spacing:.04em;text-transform:uppercase;font-size:13px;font-weight:700}._taskTitle_ztls0_14{font-size:23px;line-height:1.3}._taskPrompt_ztls0_19{margin:8px 0 14px;font-size:18px}._topics_ztls0_24{flex-wrap:wrap;gap:8px;display:flex}._topic_ztls0_24{border:2px solid var(--line-strong);background:var(--surface);border-radius:999px;padding:8px 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58px;font-size:19px;line-height:34px;display:block}._paper_ztls0_138:focus{border-color:var(--stage);outline:none}._paper_ztls0_138:disabled{color:var(--ink);opacity:1}._meter_ztls0_165{color:var(--muted);justify-content:space-between;align-items:center;margin-top:10px;display:flex}._count_ztls0_173 strong{color:var(--ink);font-variant-numeric:tabular-nums;font-size:18px}._goals_ztls0_179{gap:6px;margin-top:12px;display:grid}._goals_ztls0_179 li{color:var(--muted);align-items:center;gap:8px;display:flex}._goals_ztls0_179 svg{flex:none}._goalDone_ztls0_196{font-weight:600;color:var(--ok-dark)!important}._actions_ztls0_201{flex-wrap:wrap;justify-content:flex-end;align-items:center;gap:12px;margin-top:18px;display:flex}._missing_ztls0_210{min-width:200px;color:var(--muted);flex:1;font-size:15px}._findings_ztls0_217{gap:12px;margin-top:18px;display:grid}._stale_ztls0_223{border-radius:var(--radius-sm);background:var(--paper-2);color:var(--muted);padding:8px 14px;font-size:15px}._group_ztls0_231{border-radius:14px;padding:14px 16px}._group_ztls0_231 h4{align-items:center;gap:8px;font-size:17px;display:flex}._group_ztls0_231 ul{gap:10px;margin-top:10px;display:grid}._group_ztls0_231 li{color:var(--ink);gap:4px;display:grid}._fix_ztls0_255{background:var(--no-soft)}._fix_ztls0_255 h4{color:var(--no-dark)}._tip_ztls0_263{background:var(--tip-soft)}._tip_ztls0_263 h4{color:var(--tip)}._good_ztls0_271{background:var(--ok-soft)}._good_ztls0_271 h4{color:var(--ok-dark)}._quote_ztls0_279{background:#fffc;border-radius:8px;justify-self:start;padding:1px 10px;font-size:17px;font-weight:600}._disclaimer_ztls0_288{color:var(--faint);font-size:14px}._self_ztls0_293{gap:10px;display:grid}._adult_ztls0_298{color:var(--muted);margin-top:12px}._self_ztls0_293 label,._adult_ztls0_298{cursor:pointer;gap:12px;font-size:17px;display:flex}._self_ztls0_293 input,._adult_ztls0_298 input{width:24px;height:24px;accent-color:var(--ok);flex:none;margin:2px 0 0}._saved_ztls0_320{border:2px solid var(--ok);background:var(--ok-soft)}._saved_ztls0_320 h3{color:var(--ok-dark);flex-wrap:wrap;align-items:center;gap:8px;margin-bottom:12px;font-size:21px;display:flex}._model_ztls0_335{background:var(--surface);border-radius:14px;gap:8px;padding:14px 16px;display:grid}._modelNote_ztls0_343{color:var(--muted);font-size:15px}._modelText_ztls0_348{white-space:pre-line;font-size:18px;line-height:1.7}@media (width<=640px){._planBox_ztls0_104{grid-template-columns:1fr;gap:4px}._paper_ztls0_138{background-image:linear-gradient(90deg,#0000 30px,#f2b3aa 30px 32px,#0000 32px),repeating-linear-gradient(#0000,#0000 33px,#d9e4f4 33px 34px);padding-left:44px}._actions_ztls0_201>button{width:100%}}._back_1j4ck_1{color:var(--muted);align-items:center;gap:6px;margin-bottom:14px;font-weight:600;display:inline-flex}._back_1j4ck_1:hover{color:var(--ink)}._own_1j4ck_14{background:var(--yellow-soft);border-color:var(--yellow);margin-top:22px}._own_1j4ck_14 h2{font-size:19px}._own_1j4ck_14 form{gap:10px;margin-top:12px;display:flex}._own_1j4ck_14 input{border:2px solid var(--line-strong);background:var(--surface);border-radius:14px;flex:1;min-width:0;padding:10px 16px;font-size:18px}._group_1j4ck_40{margin-top:30px}._groupHead_1j4ck_44{align-items:baseline;gap:12px;display:flex}._groupHead_1j4ck_44 h2{font-size:20px}._size_1j4ck_54{background:var(--blue-soft);color:var(--blue-dark);border-radius:999px;padding:2px 10px;font-size:13px;font-weight:700}._grid_1j4ck_63{grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:12px;margin-top:12px;display:grid}._prompt_1j4ck_70{border:2px solid var(--line);border-radius:var(--radius);background:var(--surface);height:100%;min-height:96px;color:var(--ink);flex-direction:column;gap:10px;padding:14px 16px;transition:transform .12s,border-color .12s,box-shadow .12s;display:flex}._prompt_1j4ck_70:hover{border-color:var(--blue);box-shadow:var(--shadow);transform:translateY(-2px)}._promptTitle_1j4ck_90{flex:1;font-size:17px;font-weight:700;line-height:1.3}._done_1j4ck_97{border-color:color-mix(in srgb, var(--ok) 45%, var(--line))}._mark_1j4ck_101{background:var(--ok-soft);color:var(--ok-dark);border-radius:999px;align-self:flex-start;align-items:center;gap:4px;padding:1px 10px;font-size:13px;font-weight:700;display:inline-flex}._draft_1j4ck_114{background:var(--tip-soft);color:var(--tip)}@media (width<=640px){._own_1j4ck_14 form{flex-direction:column}}._welcome_1uapu_1{border:1px solid var(--line);background:var(--surface);max-width:520px;box-shadow:var(--shadow);text-align:center;border-radius:24px;margin:8vh auto 0;padding:36px 32px}._hello_1uapu_12{font-family:var(--display);font-size:32px;line-height:1.25}._sub_1uapu_18{color:var(--muted);margin-top:4px;font-size:17px}._nameForm_1uapu_24{gap:10px;margin-top:22px;display:flex}._nameInput_1uapu_30{border:2px solid var(--line-strong);background:var(--paper);border-radius:14px;flex:1;min-width:0;padding:10px 16px;font-size:18px}._greeting_1uapu_40{flex-wrap:wrap;justify-content:space-between;align-items:flex-end;gap:14px;display:flex}._stats_1uapu_48{flex-wrap:wrap;gap:8px;display:flex}._statStar_1uapu_54{color:var(--yellow-dark);fill:var(--yellow)}._statFlame_1uapu_59{color:var(--s3)}._statPen_1uapu_63{color:var(--blue)}._next_1uapu_67{border:2px solid var(--stage);background:color-mix(in srgb, var(--stage) 8%, var(--surface));border-radius:20px;align-items:center;gap:18px;margin-top:22px;padding:20px 22px;display:flex}._nextNo_1uapu_78{background:var(--stage);color:#fff;width:60px;height:60px;font-family:var(--display);border-radius:18px;flex:none;place-items:center;font-size:20px;font-weight:700;display:grid}._trophy_1uapu_92{color:var(--yellow-dark);flex:none}._nextBody_1uapu_97{flex:1;min-width:0}._nextBody_1uapu_97 h2{font-size:21px;line-height:1.3}._nextBody_1uapu_97 p{color:var(--muted)}._nextKicker_1uapu_111{letter-spacing:.04em;text-transform:uppercase;font-size:13px;font-weight:700;color:var(--stage)!important}._stage_1uapu_119{margin-top:34px}._stageHead_1uapu_123{align-items:center;gap:14px;display:flex}._stageNo_1uapu_129{background:var(--stage);color:#fff;width:44px;height:44px;font-family:var(--display);border-radius:50%;flex:none;place-items:center;font-size:20px;font-weight:700;display:grid}._stageText_1uapu_143{flex:1;min-width:0}._stageText_1uapu_143 h2{font-size:20px;line-height:1.3}._stageText_1uapu_143 p{color:var(--muted);font-size:15px}._stageMeta_1uapu_158{flex:none;align-items:center;gap:10px;display:flex}._level_1uapu_165{background:color-mix(in srgb, var(--stage) 14%, var(--surface));color:var(--stage);border-radius:999px;padding:2px 10px;font-size:13px;font-weight:700}._count_1uapu_174{color:var(--muted);font-variant-numeric:tabular-nums;font-size:14px;font-weight:600}._lessons_1uapu_181{grid-template-columns:repeat(4,1fr);gap:12px;margin-top:14px;display:grid}._lesson_1uapu_181{border:2px solid var(--line);border-radius:var(--radius);background:var(--surface);height:100%;min-height:138px;color:var(--ink);flex-direction:column;gap:10px;padding:14px;transition:transform .12s,border-color .12s,box-shadow .12s;display:flex}a._lesson_1uapu_181:hover{border-color:var(--stage);box-shadow:var(--shadow);transform:translateY(-2px)}._lessonNo_1uapu_208{background:color-mix(in srgb, var(--stage) 14%, var(--surface));min-width:40px;height:28px;color:var(--stage);border-radius:999px;align-self:flex-start;place-items:center;padding:0 8px;font-size:14px;font-weight:700;display:grid}._lessonTitle_1uapu_222{flex:1;font-size:16px;font-weight:700;line-height:1.3}._lessonFoot_1uapu_229{min-height:20px;color:var(--faint);align-items:center;display:flex}._open_1uapu_236{color:var(--stage);font-size:14px;font-weight:700}._done_1uapu_242{border-color:color-mix(in srgb, var(--stage) 40%, var(--line))}._done_1uapu_242 ._lessonNo_1uapu_208{background:var(--stage);color:#fff}._locked_1uapu_251{color:var(--faint);background:0 0;border-style:dashed}._locked_1uapu_251 ._lessonNo_1uapu_208{background:var(--paper-2);color:var(--faint)}@media (width<=860px){._lessons_1uapu_181{grid-template-columns:repeat(2,1fr)}}@media (width<=640px){._hello_1uapu_12{font-size:26px}._next_1uapu_67{flex-wrap:wrap}._next_1uapu_67 a{width:100%}._stageMeta_1uapu_158{flex-direction:column;align-items:flex-end;gap:2px}._nameForm_1uapu_24{flex-direction:column}}._back_h5jgg_1{color:var(--muted);align-items:center;gap:6px;font-weight:600;display:inline-flex}._back_h5jgg_1:hover{color:var(--ink)}._head_h5jgg_13{align-items:center;gap:14px;margin-top:12px;display:flex}._headNo_h5jgg_20{background:var(--stage);color:#fff;width:56px;height:56px;font-family:var(--display);border-radius:16px;flex:none;place-items:center;font-size:19px;font-weight:700;display:grid}._kicker_h5jgg_34{color:var(--stage);letter-spacing:.04em;text-transform:uppercase;font-size:13px;font-weight:700}._title_h5jgg_42{font-size:26px;line-height:1.25}._steps_h5jgg_47{gap:8px;margin:20px 0;display:flex}._steps_h5jgg_47 li{flex:1}._step_h5jgg_47{border:2px solid var(--line);background:var(--surface);width:100%;color:var(--muted);border-radius:999px;justify-content:center;align-items:center;gap:8px;padding:8px 10px;font-weight:700;display:flex}._step_h5jgg_47:disabled{color:var(--faint);background:0 0}._stepNo_h5jgg_76{background:var(--paper-2);border-radius:50%;place-items:center;width:22px;height:22px;font-size:13px;display:grid}._stepDone_h5jgg_86 ._stepNo_h5jgg_76{background:var(--ok);color:#fff}._stepActive_h5jgg_91{border-color:var(--stage);background:color-mix(in srgb, var(--stage) 10%, var(--surface));color:var(--ink)}._stepActive_h5jgg_91:not(._stepDone_h5jgg_86) ._stepNo_h5jgg_76{background:var(--stage);color:#fff}._teach_h5jgg_104{border-top:6px solid var(--stage);padding:28px}._teachNo_h5jgg_109{color:var(--faint);font-size:14px;font-weight:700}._teachTitle_h5jgg_115{margin-top:4px;font-size:24px;line-height:1.3}._teachBody_h5jgg_121{margin-top:10px;font-size:19px}._teachZh_h5jgg_126{margin-top:4px;font-size:17px}._examples_h5jgg_131{gap:8px;margin-top:18px;display:grid}._examples_h5jgg_131 li{border-radius:var(--radius-sm);align-items:center;gap:10px;padding:10px 14px;font-size:19px;display:flex}._examples_h5jgg_131 li span{flex:1}._exampleGood_h5jgg_150{background:var(--ok-soft)}._exampleGood_h5jgg_150>svg{color:var(--ok);flex:none}._exampleBad_h5jgg_159{background:var(--no-soft);color:var(--no-dark)}._exampleBad_h5jgg_159>svg{flex:none}._exampleBad_h5jgg_159 span{text-decoration:line-through;-webkit-text-decoration-color:color-mix(in srgb, var(--no) 55%, transparent);text-decoration-color:color-mix(in srgb, var(--no) 55%, transparent)}._actions_h5jgg_173{justify-content:flex-end;gap:12px;margin-top:22px;display:flex}._actionsCenter_h5jgg_180{flex-wrap:wrap;justify-content:center}._center_h5jgg_185{text-align:center;flex-direction:column;align-items:center;gap:8px;padding:40px 24px;display:flex}._bigTitle_h5jgg_194{font-family:var(--display);margin-top:8px;font-size:28px;line-height:1.3}._muted_h5jgg_201{color:var(--muted)}._trophy_h5jgg_205{color:var(--yellow-dark)}._progress_h5jgg_211{background:var(--paper-2);border-radius:999px;height:12px;overflow:hidden}._progress_h5jgg_211 span{background:var(--stage);border-radius:999px;height:100%;transition:width .3s;display:block}._counter_h5jgg_226{color:var(--faint);text-align:right;font-variant-numeric:tabular-nums;margin-top:6px;font-size:14px;font-weight:700}._exercise_h5jgg_235{margin-top:4px}._prompt_h5jgg_239{margin-bottom:16px;font-size:21px;line-height:1.35}._passage_h5jgg_245,._baseBox_h5jgg_246,._wrongBox_h5jgg_247{border-radius:var(--radius-sm);margin-bottom:16px;padding:14px 16px;font-size:20px;line-height:1.5}._passage_h5jgg_245,._baseBox_h5jgg_246{border-left:5px solid var(--stage);background:var(--paper)}._wrongBox_h5jgg_247{border-left:5px solid var(--no);background:var(--no-soft);color:var(--no-dark)}._options_h5jgg_267{gap:10px;display:grid}._option_h5jgg_267{border:2px solid var(--line-strong);background:var(--surface);text-align:left;width:100%;box-shadow:0 3px 0 var(--line-strong);border-radius:14px;align-items:center;gap:12px;padding:12px 14px;font-size:19px;display:flex}._option_h5jgg_267:hover:not(:disabled){border-color:var(--blue)}._letter_h5jgg_290{background:var(--paper-2);width:30px;height:30px;color:var(--muted);border-radius:9px;flex:none;place-items:center;font-size:15px;font-weight:700;display:grid}._optionPicked_h5jgg_303{border-color:var(--blue);background:var(--blue-soft);box-shadow:0 3px 0 var(--blue)}._optionPicked_h5jgg_303 ._letter_h5jgg_290{background:var(--blue);color:#fff}._optionRight_h5jgg_314{border-color:var(--ok);background:var(--ok-soft);box-shadow:0 3px 0 var(--ok)}._optionRight_h5jgg_314 ._letter_h5jgg_290{background:var(--ok);color:#fff}._optionWrong_h5jgg_325{border-color:var(--no);background:var(--no-soft);box-shadow:0 3px 0 var(--no)}._optionWrong_h5jgg_325 ._letter_h5jgg_290{background:var(--no);color:#fff}._answerLine_h5jgg_336{border:2px dashed var(--line-strong);background:var(--paper);border-radius:14px;flex-wrap:wrap;align-items:center;gap:8px;min-height:64px;padding:10px 12px;display:flex}._bank_h5jgg_348{flex-wrap:wrap;gap:8px;margin-top:16px;display:flex}._column_h5jgg_355{flex-direction:column;align-items:stretch}._placeholder_h5jgg_360{color:var(--faint)}._tile_h5jgg_364{border:2px solid var(--line-strong);background:var(--surface);box-shadow:0 3px 0 var(--line-strong);border-radius:12px;padding:8px 14px;font-size:19px}._tile_h5jgg_364:hover:not(:disabled){border-color:var(--blue)}._tile_h5jgg_364:disabled{color:var(--ink)}._tileBlock_h5jgg_381{text-align:left;align-items:baseline;gap:10px;font-size:17px;display:flex}._tileNo_h5jgg_389{color:var(--stage);flex:none;font-weight:700}._tileUsed_h5jgg_395,._tileUsed_h5jgg_395:disabled{color:#0000;box-shadow:none;background:0 0;border-style:dashed}._sentence_h5jgg_403{font-size:21px;line-height:2.3}._slot_h5jgg_408{border:0;border-bottom:3px solid var(--line-strong);background:var(--paper);text-align:center;border-radius:8px 8px 0 0;min-width:96px;margin:0 6px;padding:2px 12px;font-size:21px;line-height:1.5;display:inline-block}._slotFilled_h5jgg_422{border-bottom-color:var(--blue);background:var(--blue-soft);font-weight:700}._slot_h5jgg_408:disabled{color:var(--ink)}._blank_h5jgg_432{border:0;border-bottom:3px solid var(--blue);background:var(--blue-soft);text-align:center;border-radius:8px 8px 0 0;margin:0 6px;padding:2px 10px;font-size:21px;font-weight:700}._fieldLabel_h5jgg_444{color:var(--muted);margin-bottom:6px;font-size:15px;font-weight:600;display:block}._input_h5jgg_452{border:2px solid var(--line-strong);resize:vertical;background:#fffdf6;border-radius:14px;width:100%;padding:12px 14px;font-size:20px;line-height:1.5;display:block}._input_h5jgg_452:focus{border-color:var(--blue);outline:none}._input_h5jgg_452:disabled{background:var(--paper)}._feedback_h5jgg_473{border-radius:14px;gap:12px;margin-top:18px;padding:14px 16px;font-size:17px;display:flex}._feedback_h5jgg_473>svg{flex:none;margin-top:2px}._feedback_h5jgg_473>div{flex:1;min-width:0}._feedback_h5jgg_473 strong{font-size:18px}._fbRetry_h5jgg_496{background:var(--tip-soft);color:#6b4500}._fbRight_h5jgg_501{background:var(--ok-soft);color:var(--ok-dark)}._fbReveal_h5jgg_506{background:var(--no-soft);color:var(--no-dark)}._notes_h5jgg_511{gap:4px;margin-top:6px;padding-left:18px;list-style:outside;display:grid}._solution_h5jgg_519,._samples_h5jgg_520 li{border-radius:var(--radius-sm);color:var(--ink);white-space:pre-line;background:#ffffffbf;align-items:center;gap:10px;margin-top:8px;padding:8px 12px;font-size:19px;display:flex}._solution_h5jgg_519 span,._samples_h5jgg_520 li span{flex:1}._samples_h5jgg_520 ._sampleLabel_h5jgg_538{color:inherit;background:0 0;margin-top:10px;padding:0;font-size:15px;font-weight:700;display:block}._why_h5jgg_548{margin-top:8px}@media (width<=640px){._title_h5jgg_42{font-size:21px}._teach_h5jgg_104{padding:20px 16px}._actions_h5jgg_173{flex-direction:column-reverse}._step_h5jgg_47{padding:6px 4px;font-size:14px}._prompt_h5jgg_239,._sentence_h5jgg_403{font-size:19px}}._title_1ezxj_1{font-size:28px;line-height:1.3}._lead_1ezxj_6{color:var(--muted);margin-top:4px}._summary_1ezxj_11{grid-template-columns:repeat(5,1fr);gap:10px;margin-top:20px;display:grid}._summary_1ezxj_11>div{text-align:center;gap:2px;padding:14px 10px;display:grid}._summary_1ezxj_11 strong{font-variant-numeric:tabular-nums;font-size:24px;line-height:1.2}._summary_1ezxj_11 span{color:var(--muted);font-size:14px}._block_1ezxj_36{margin-top:16px}._block_1ezxj_36 h2{font-size:19px}._block_1ezxj_36 h2:not(:first-child){margin-top:22px}._note_1ezxj_48{color:var(--muted);margin-top:6px;font-size:14px}._table_1ezxj_54{border-collapse:collapse;width:100%;margin-top:12px;font-size:15px}._table_1ezxj_54 th,._table_1ezxj_54 td{border-bottom:1px solid var(--line);text-align:left;padding:7px 8px}._table_1ezxj_54 thead th{color:var(--muted);font-size:13px;font-weight:600}._stageRow_1ezxj_74 th{border-bottom:2px solid var(--stage);color:var(--stage);padding-top:14px}._stageRow_1ezxj_74 span{color:var(--muted);margin-left:6px;font-size:13px;font-weight:400}._table_1ezxj_54 a{color:var(--ink)}._table_1ezxj_54 a:hover{color:var(--blue);text-decoration:underline}._num_1ezxj_96{font-variant-numeric:tabular-nums}._field_1ezxj_100{align-items:center;gap:14px;margin-top:14px;font-weight:600;display:flex}._field_1ezxj_100 input{border:2px solid var(--line-strong);background:var(--surface);border-radius:12px;flex:1;max-width:260px;padding:8px 14px;font-weight:400}._toggle_1ezxj_118{cursor:pointer;gap:12px;margin-top:16px;display:flex}._toggle_1ezxj_118 input{width:22px;height:22px;accent-color:var(--blue);flex:none;margin:2px 0 0}._toggle_1ezxj_118 strong,._toggle_1ezxj_118 small{display:block}._toggle_1ezxj_118 small{color:var(--muted);font-size:14px}._buttons_1ezxj_143{flex-wrap:wrap;gap:10px;margin-top:12px;display:flex}._guide_1ezxj_150{gap:8px;margin-top:10px;padding-left:22px;font-size:15px;list-style:outside;display:grid}ol._guide_1ezxj_150{list-style:decimal}@media (width<=640px){._summary_1ezxj_11{grid-template-columns:repeat(2,1fr)}}._shell_3lx1e_1{min-height:100vh}._bar_3lx1e_5{z-index:10;border-bottom:1px solid var(--line);background:color-mix(in srgb, var(--paper) 92%, transparent);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);justify-content:space-between;align-items:center;gap:16px;padding:10px 24px;display:flex;position:sticky;top:0}._brand_3lx1e_19{color:var(--ink);align-items:center;gap:10px;display:flex}._brand_3lx1e_19 strong{font-family:var(--display);font-size:17px;line-height:1.2;display:block}._brand_3lx1e_19 small{color:var(--muted);font-size:12px;display:block}._brandMark_3lx1e_39{background:var(--yellow);width:38px;height:38px;color:var(--ink);box-shadow:0 3px 0 var(--yellow-dark);border-radius:12px;place-items:center;display:grid}._nav_3lx1e_50{gap:6px;display:flex}._navItem_3lx1e_55{color:var(--muted);white-space:nowrap;border-radius:12px;align-items:center;gap:8px;padding:8px 14px;font-weight:600;display:flex}._navItem_3lx1e_55:hover{background:var(--paper-2);color:var(--ink)}._navActive_3lx1e_71,._navActive_3lx1e_71:hover{background:var(--ink);color:#fff}._navActive_3lx1e_71 span span{color:#cfd6e4}@media (width<=760px){._bar_3lx1e_5{background:var(--paper);-webkit-backdrop-filter:none;backdrop-filter:none;padding:8px 14px}._nav_3lx1e_50{z-index:10;border-top:1px solid var(--line);background:var(--paper);justify-content:space-around;gap:0;padding:6px 4px;position:fixed;bottom:0;left:0;right:0}._navItem_3lx1e_55{text-align:center;flex-direction:column;flex:1;gap:2px;padding:6px 4px;font-size:12px}}@media print{._bar_3lx1e_5{display:none}}:root{--paper:#fbf7ee;--paper-2:#f3ecdb;--surface:#fff;--ink:#22314c;--muted:#5c6a82;--faint:#8d98ab;--line:#e8e0cd;--line-strong:#d4cab2;--blue:#2f6fde;--blue-dark:#2155b4;--blue-soft:#e8f0ff;--yellow:#f6b93b;--yellow-dark:#d59a1c;--yellow-soft:#fff4d6;--ok:#2a9d5c;--ok-dark:#1f7a47;--ok-soft:#e4f6ea;--no:#d9483b;--no-dark:#b03327;--no-soft:#fde9e6;--tip:#a86a00;--tip-soft:#fff1d4;--s1:#2f6fde;--s2:#2a9d5c;--s3:#e2733a;--s4:#8457d8;--s5:#d4447f;--s6:#17889a;--stage:var(--blue);--radius:16px;--radius-sm:10px;--shadow:0 1px 2px #22314c0f, 0 4px 14px #22314c0f;--font:"Segoe UI", "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, sans-serif;--display:"Segoe Print", "Chalkboard SE", "Comic Sans MS", "Segoe UI", "Microsoft YaHei", cursive}*,:before,:after{box-sizing:border-box}html,body{background:var(--paper);color:var(--ink);font-family:var(--font);-webkit-font-smoothing:antialiased;margin:0;font-size:16px;line-height:1.55}h1,h2,h3,h4,p,ul,ol{margin:0;padding:0}ul,ol{list-style:none}a{color:var(--blue);text-decoration:none}button{font:inherit;color:inherit;cursor:pointer}button:disabled{cursor:not-allowed}input,textarea,select{font:inherit;color:inherit}:focus-visible{outline:3px solid color-mix(in srgb, var(--blue) 55%, transparent);outline-offset:2px}@media (prefers-reduced-motion:reduce){*,:before,:after{transition:none!important;animation:none!important}}@media print{body{background:#fff}}