._cn_1530m_1._phone_1530m_10 ._dotRegex_1530m_10{font-size:2.3rem!important;min-width:3.125rem!important;padding:0!important;width:auto!important}._cn_1530m_1._phone_1530m_10 ._tab1_1530m_16 ._greenArea_1530m_16{padding:.625rem 0}._cn_1530m_1._phone_1530m_10 ._tab1_1530m_16 ._greenArea_1530m_16 ._item_1530m_19 ._greenBag_1530m_19{font-size:1.5rem;line-height:inherit;min-width:-moz-max-content;min-width:max-content;width:5.625rem!important}._cn_1530m_1._phone_1530m_10 ._tab1_1530m_16 ._greenArea_1530m_16 ._item_1530m_19 ._greenBag_1530m_19 ._greenBagWrap_1530m_25{align-items:center;display:flex;justify-content:center}._cn_1530m_1._phone_1530m_10 ._tab1_1530m_16 ._greenArea_1530m_16 ._item_1530m_19 ._greenBag_1530m_19._left_1530m_30{left:inherit;margin-left:2.0625rem}._cn_1530m_1._phone_1530m_10 ._tab1_1530m_16 ._greenArea_1530m_16 ._item_1530m_19 ._greenBag_1530m_19._left_1530m_30 ._arrow_1530m_34 ._line_1530m_34{width:1.875rem!important}._cn_1530m_1._phone_1530m_10 ._tab2_1530m_37 ._dotRegex_1530m_10{min-width:2.5rem!important;width:2.5rem!important}._cn_1530m_1._phone_1530m_10 ._tab2_1530m_37 ._greenArea_1530m_16{padding:.625rem 0}._cn_1530m_1._phone_1530m_10 ._tab2_1530m_37 ._greenArea_1530m_16 ._item_1530m_19 ._greenBag_1530m_19{font-size:1.5rem;line-height:inherit;min-width:-moz-max-content;min-width:max-content;width:3.75rem!important}._cn_1530m_1._phone_1530m_10 ._tab2_1530m_37 ._greenArea_1530m_16 ._item_1530m_19 ._greenBag_1530m_19 ._greenBagWrap_1530m_25{align-items:center;display:flex;justify-content:center}._cn_1530m_1._phone_1530m_10 ._tab2_1530m_37 ._greenArea_1530m_16 ._item_1530m_19 ._greenBag_1530m_19._left_1530m_30{left:inherit;margin-left:2.0625rem}._cn_1530m_1._phone_1530m_10 ._tab2_1530m_37 ._greenArea_1530m_16 ._item_1530m_19 ._greenBag_1530m_19._left_1530m_30 ._arrow_1530m_34 ._line_1530m_34{width:1.875rem!important}._cn_1530m_1._phone_1530m_10 ._tab2_1530m_37 ._greenArea_1530m_16 ._item_1530m_19 ._greenBag_1530m_19._right_1530m_62{right:2.0625rem}._cn_1530m_1._phone_1530m_10 ._tab2_1530m_37 ._greenArea_1530m_16 ._item_1530m_19 ._greenBag_1530m_19._right_1530m_62 ._arrow_1530m_34 ._line_1530m_34{width:1.875rem!important}._cn_1530m_1 ._specialBD_1530m_68{color:#96c952;font-size:4.375rem;position:relative;top:1.3125rem}._cn_1530m_1 ._toneListDiv_1530m_74{display:flex;flex-wrap:wrap;font-size:2rem;justify-content:flex-start}._cn_1530m_1 ._toneListDiv_1530m_74>div{border:2px dotted #ddd;border-radius:.3125rem;margin-right:.625rem;margin-top:.625rem;min-width:5rem;padding:.625rem;text-align:center}._cn_1530m_1 ._toneListDiv_1530m_74>div.ripple{padding:0 .375rem .625rem}._cn_1530m_1 ._toneListDiv_1530m_74>div:hover{background-color:#c4d1e9;cursor:pointer}._cn_1530m_1 ._toneListDiv_1530m_74>div>div:first-child{color:#96c952;font-size:2.125rem}._cn_1530m_1 ._toneListDiv_1530m_74>div>div:last-child{font-size:1.125rem}._cn_1530m_1 ._listDiv_1530m_104{display:flex;flex-wrap:wrap;font-size:1.25rem;justify-content:flex-start}._cn_1530m_1 ._listDiv_1530m_104 div{border:2px dotted #ddd;border-radius:.3125rem;margin-right:.625rem;margin-top:.625rem;padding:.625rem}._cn_1530m_1 ._listDiv_1530m_104 div:hover{background-color:#c4d1e9;cursor:pointer}._cn_1530m_1 ._greenArea_1530m_16{background-color:#f7f7ff;border-radius:.625rem;padding:1.25rem 0}._cn_1530m_1 ._greenArea_1530m_16 ._wrapItem_1530m_126{align-items:center;display:flex;justify-content:center}._cn_1530m_1 ._greenArea_1530m_16 ._wrapItem_1530m_126 ._item_1530m_19{margin:0 .3125rem}._cn_1530m_1 ._greenArea_1530m_16 ._wrapItem_1530m_126 ._item_1530m_19 ._greenBag_1530m_19{min-width:-moz-max-content;min-width:max-content;width:5rem}html[lang=ar] ._cn_1530m_1 ._greenArea_1530m_16 ._wrapItem_1530m_126 ._item_1530m_19 ._greenBag_1530m_19{min-width:6.875rem}._cn_1530m_1 ._greenArea_1530m_16 ._item_1530m_19{align-items:center;display:flex;justify-content:center;margin-top:.625rem}._cn_1530m_1 ._greenArea_1530m_16 ._item_1530m_19 ._dotRegex_1530m_10{border:2px dotted #ddd;font-size:1.875rem;height:3.4375rem;line-height:3.4375rem;text-align:center;width:5rem}._cn_1530m_1 ._greenArea_1530m_16 ._item_1530m_19 ._dotRegex_1530m_10:hover{background-color:#c4d1e9;cursor:pointer}._cn_1530m_1 ._greenBag_1530m_19{background-color:var(--active-1000);border-radius:.9375rem;color:#fff;font-size:1.25rem;height:3.26563rem;line-height:3.26563rem;padding:0 .375rem;position:relative;text-align:center;width:13.125rem}._cn_1530m_1 ._greenBag_1530m_19:hover{background-color:#96c952;cursor:pointer}._cn_1530m_1 ._greenBag_1530m_19._right_1530m_62{right:3.75rem}._cn_1530m_1 ._greenBag_1530m_19._right_1530m_62 ._arrow_1530m_34{display:flex;justify-content:center;position:absolute;right:0;top:50%;transform:translate(100%,-50%)}._cn_1530m_1 ._greenBag_1530m_19._right_1530m_62 ._arrow_1530m_34 ._line_1530m_34{background-color:var(--active-1000);height:1px;position:relative;top:50%;transform:translateY(-50%);width:3.125rem}._cn_1530m_1 ._greenBag_1530m_19._right_1530m_62 ._arrow_1530m_34 ._dot_1530m_10{background-color:var(--active-1000);border-radius:.625rem;height:.25rem;top:50%;transform:translateY(-50%);width:.25rem}._cn_1530m_1 ._greenBag_1530m_19._left_1530m_30{left:3.75rem}._cn_1530m_1 ._greenBag_1530m_19._left_1530m_30 ._arrow_1530m_34{display:flex;justify-content:center;position:absolute;top:50%;transform:translate(-110%,-50%)}._cn_1530m_1 ._greenBag_1530m_19._left_1530m_30 ._arrow_1530m_34 ._line_1530m_34{background-color:var(--active-1000);height:1px;position:relative;top:50%;transform:translateY(-50%);width:3.125rem}._cn_1530m_1 ._greenBag_1530m_19._left_1530m_30 ._arrow_1530m_34 ._dot_1530m_10{background-color:var(--active-1000);border-radius:.625rem;height:.25rem;top:50%;transform:translateY(-50%);width:.25rem}._cn_1530m_1 ._hrLine_1530m_228{background-color:#d8d8d8;height:1px;margin:2.5rem 0}._cn_1530m_1 ._highLight_1530m_233{color:#ff9513}._cn_1530m_1 ._strong_1530m_236{font-weight:700}._cn_1530m_1 ._lowGrey_1530m_239{color:#999;font-size:2.1875rem}._cn_1530m_1 ._highLightBG_1530m_243{background-color:#ff0}._cn_1530m_1 ._article_1530m_246 ._h1_1530m_246{font-size:1.2375rem;font-weight:700;margin:1.25rem 0}._cn_1530m_1 ._article_1530m_246 ._h2_1530m_251{font-size:1.1rem;margin:1.25rem 0}._cn_1530m_1 ._article_1530m_246 ._h3_1530m_255{font-size:.89375rem;margin:1.25rem 0}._cn_1530m_1 ._article_1530m_246 div._p_1530m_10{color:#717171;font-size:1.03125rem;margin:.625rem 0}._cn_1530m_1 ._article_1530m_246 div._p_1530m_10 text{margin-right:.625rem}._cn_1530m_1 ._article_1530m_246 div._p_1530m_10._plus_1530m_267{margin-top:.625rem}._cn_1530m_1 ._row_1530m_270{display:flex;flex-wrap:wrap;justify-content:space-around;margin:auto}._cn_1530m_1 ._row_1530m_270 ._col_1530m_276{background-color:#eee;border-bottom:2px solid #fff;display:inline-table;font-size:1.25rem;padding:1.25rem 0;position:relative;text-align:center}._cn_1530m_1 ._row_1530m_270 ._col_1530m_276>div{display:inline}._cn_1530m_1 ._row_1530m_270 ._col_1530m_276:hover{background-color:#c4d1e9;cursor:pointer}._cn_1530m_1 ._row_1530m_270 ._col_1530m_276 span{margin:.3125rem}html[dir=rtl] ._greenArea_1530m_16,html[dir=rtl] ._listDiv_1530m_104,html[dir=rtl] ._toneListDiv_1530m_74{direction:ltr}.dark ._cn_1530m_1{color:#eee}.dark ._cn_1530m_1 ._specialBD_1530m_68{color:#ffb100}.dark ._cn_1530m_1 ._listDiv_1530m_104 div,.dark ._cn_1530m_1 ._toneListDiv_1530m_74>div{background-color:#252525;border-color:#444;color:#ccc}.dark ._cn_1530m_1 ._listDiv_1530m_104 div>div:first-child,.dark ._cn_1530m_1 ._toneListDiv_1530m_74>div>div:first-child{color:#a3d95d}.dark ._cn_1530m_1 ._listDiv_1530m_104 div:hover,.dark ._cn_1530m_1 ._toneListDiv_1530m_74>div:hover{background-color:#3d4a5f}.dark ._cn_1530m_1 ._toneListDiv_1530m_74>div{background-color:#ffb100;color:var(--text-inverse)}.dark ._cn_1530m_1 ._toneListDiv_1530m_74>div>div:first-child{color:var(--text-inverse)}.dark ._cn_1530m_1 ._toneListDiv_1530m_74>div:hover{background-color:#ff9513}.dark ._cn_1530m_1 ._greenArea_1530m_16{background-color:#1e1e1e}.dark ._cn_1530m_1 ._greenArea_1530m_16 ._item_1530m_19 ._dotRegex_1530m_10{background-color:#252525;border-color:#444;color:#eee}.dark ._cn_1530m_1 ._greenArea_1530m_16 ._item_1530m_19 ._dotRegex_1530m_10:hover{background-color:#3d4a5f}.dark ._cn_1530m_1 ._greenBag_1530m_19{background-color:#ffb100;color:var(--text-inverse)}.dark ._cn_1530m_1 ._greenBag_1530m_19._left_1530m_30 ._arrow_1530m_34 ._dot_1530m_10,.dark ._cn_1530m_1 ._greenBag_1530m_19._left_1530m_30 ._arrow_1530m_34 ._line_1530m_34,.dark ._cn_1530m_1 ._greenBag_1530m_19._right_1530m_62 ._arrow_1530m_34 ._dot_1530m_10,.dark ._cn_1530m_1 ._greenBag_1530m_19._right_1530m_62 ._arrow_1530m_34 ._line_1530m_34{background-color:#2d5a27}.dark ._cn_1530m_1 ._greenBag_1530m_19:hover{background-color:var(--active-700)}.dark ._cn_1530m_1 ._hrLine_1530m_228{background-color:#444}.dark ._cn_1530m_1 ._article_1530m_246 ._h1_1530m_246,.dark ._cn_1530m_1 ._article_1530m_246 ._h2_1530m_251,.dark ._cn_1530m_1 ._article_1530m_246 ._h3_1530m_255{color:#fff}.dark ._cn_1530m_1 ._article_1530m_246 div._p_1530m_10{color:#aaa}.dark ._cn_1530m_1 ._row_1530m_270 ._col_1530m_276{background-color:#2a2a2a;border-bottom-color:#333;color:#eee}.dark ._cn_1530m_1 ._row_1530m_270 ._col_1530m_276:hover{background-color:#3d4a5f}.dark ._cn_1530m_1 ._lowGrey_1530m_239{color:#666}.dark ._cn_1530m_1 ._highLightBG_1530m_243{background-color:#660;color:#fff}.dark ._cn_1530m_1._phone_1530m_10 ._dotRegex_1530m_10{background-color:#252525}.dark ._cn_1530m_1._phone_1530m_10 ._tab1_1530m_16 ._greenArea_1530m_16 ._item_1530m_19 ._greenBag_1530m_19,.dark ._cn_1530m_1._phone_1530m_10 ._tab2_1530m_37 ._greenArea_1530m_16 ._item_1530m_19 ._greenBag_1530m_19{background-color:#2d5a27}._coursePage_1xk0z_1{--pinyin-accent:var(--ld-color-brand);--syllable-accent:var(--ld-color-brand);background:var(--bg-panel);color:var(--text-main);min-height:100%}._header_1xk0z_9{background:var(--bg-panel);border-bottom:1px solid var(--border-main);padding:1.375rem 1.5rem 1.125rem;position:sticky;top:0;z-index:5}._title_1xk0z_18{font-size:1.5rem;font-weight:800;margin:0;text-align:center}._body_1xk0z_25{padding:1.375rem 1.5rem 5.5rem}._lessonCopy_1xk0z_29{display:flex;flex:1;flex-direction:column;min-width:0}._lessonCard_1xk0z_36{align-items:center;background:var(--bg-panel);border:1px solid var(--border-main);border-radius:.9375rem;box-shadow:0 .25rem .875rem #1e23210d;box-sizing:border-box;color:inherit;cursor:pointer;display:flex;font:inherit;gap:.875rem;min-height:5.125rem;padding:.875rem 1rem;position:relative;text-align:start;transition:border-color .16s ease,transform .16s ease,box-shadow .16s ease;width:100%}._lessonCard_1xk0z_36:not(._locked_1xk0z_55):hover{border-color:var(--pinyin-accent);box-shadow:0 .4375rem 1.25rem #1e23211a;transform:translateY(-1px)}._soundSection_1xk0z_61{margin:1.5rem 0}._sectionTitle_1xk0z_65{font-size:1.0625rem;font-weight:800;margin:0 0 .75rem}._soundGrid_1xk0z_71{display:grid;gap:.625rem;grid-template-columns:repeat(auto-fill,minmax(4.25rem,1fr))}._soundButton_1xk0z_77{align-items:center;background:var(--active-200);border:1px solid var(--pinyin-accent);border-radius:.75rem;color:var(--text-main);cursor:pointer;display:flex;font:inherit;font-size:1.375rem;font-weight:800;gap:.4375rem;justify-content:center;min-height:3.625rem;padding:.5rem .625rem;transition:transform .1s ease,box-shadow .1s ease,border-color .14s ease;width:100%}._soundButton_1xk0z_77:hover{border-color:var(--ld-color-brand-hover);box-shadow:0 .25rem 0 var(--ld-color-brand-active),0 .5rem 1rem #ffb10026;transform:translateY(-1px)}._soundButton_1xk0z_77:active{box-shadow:0 1px 0 var(--ld-color-brand-active);transform:translateY(2px)}._playingSound_1xk0z_105,._playingTone_1xk0z_106{border-color:var(--ld-color-brand-hover);box-shadow:0 0 0 2px var(--ld-color-brand-alpha-18),0 2px 0 var(--ld-color-brand-active)}._sectionDivider_1xk0z_111{background:var(--border-main);height:1px;margin:1.75rem 0}._ruleSection_1xk0z_117{margin-top:1.875rem}._combinationList_1xk0z_121{display:grid;gap:.875rem}._combinationRow_1xk0z_126{align-items:center;display:grid;gap:.5rem;grid-template-columns:minmax(4rem,1fr) 1.125rem minmax(4rem,1fr) 1.125rem minmax(4.625rem,1.15fr)}._operator_1xk0z_133{color:var(--text-sub);font-size:1.25rem;font-weight:800;text-align:center}._toneList_1xk0z_140{display:grid;gap:.875rem;grid-template-columns:repeat(2,minmax(0,1fr));margin:1.5rem 0}._toneCard_1xk0z_147{background:var(--bg-sub);border:1px solid var(--border-main);border-radius:.875rem;display:grid;gap:.5rem .875rem;grid-template-columns:4.375rem minmax(0,1fr);grid-template-rows:auto 1fr auto;padding:1rem}._toneTitle_1xk0z_158{font-size:1rem;font-weight:800;grid-column:1/-1;margin:0}._toneExample_1xk0z_166,._toneMark_1xk0z_165{background:var(--active-200);border:1px solid var(--pinyin-accent);color:var(--text-main);cursor:pointer}._toneMark_1xk0z_165{align-self:center;border-radius:50%;display:grid;font-size:2.125rem;font-weight:800;grid-row:2/4;height:4.375rem;place-items:center;width:4.375rem}._toneDescription_1xk0z_185{align-self:center;font-size:.8125rem;margin:0!important}._toneExample_1xk0z_166{border-radius:.625rem;font-size:1.25rem;font-weight:800;min-height:2.375rem}._lessonTitle_1xk0z_198{font-weight:800}._lessonList_1xk0z_202{display:grid;gap:.75rem}._dialogActions_1xk0z_207{display:grid;gap:.625rem}._reviewButton_1xk0z_212{background:transparent;border:2px solid var(--pinyin-accent);border-radius:.875rem;color:var(--pinyin-accent);cursor:pointer;font-size:1rem;font-weight:800;min-height:3rem;width:100%}._lessonNumber_1xk0z_224{background:var(--pinyin-accent);border:2px solid var(--pinyin-accent);border-radius:50%;color:var(--text-inverse);display:grid;flex:0 0 2.375rem;font-weight:800;height:2.375rem;place-items:center;width:2.375rem}._statusIcon_1xk0z_237{color:var(--pinyin-accent);display:grid;flex:0 0 2rem;font-size:1.75rem;height:2rem;place-items:center;width:2rem}._locked_1xk0z_55{box-shadow:none;cursor:not-allowed;opacity:.55}._locked_1xk0z_55 ._lessonNumber_1xk0z_224{background:var(--bg-grayed);border-color:var(--border-main);color:var(--text-sub)}._locked_1xk0z_55 ._statusIcon_1xk0z_237{color:#d4d4d4}.dark ._lessonCard_1xk0z_36{background-color:var(--bg-sub);box-shadow:0 .25rem .875rem #1e23211a}@media (max-width:767px){._header_1xk0z_9{padding:1.125rem 1rem .875rem}._title_1xk0z_18{font-size:1.375rem}._body_1xk0z_25{padding:1rem .875rem 1.75rem}._lessonCard_1xk0z_36{min-height:4.75rem;padding:.75rem .8125rem}._soundGrid_1xk0z_71{grid-template-columns:repeat(3,minmax(0,1fr))}._soundButton_1xk0z_77{font-size:1.25rem;min-height:3.25rem;padding-inline:.4375rem}._toneList_1xk0z_140{grid-template-columns:1fr}._combinationRow_1xk0z_126{gap:.3125rem;grid-template-columns:minmax(3.375rem,1fr) .875rem minmax(3.375rem,1fr) .875rem minmax(4rem,1.15fr)}}