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8px;font-size:10px;font-weight:600;display:inline-block}._customWrap_1yu49_185{border-radius:var(--r-md);background:linear-gradient(#f4f6fb,#eef1f8);flex-wrap:wrap;place-content:center;gap:12px;height:200px;padding:22px;display:flex}._chip_1yu49_196{box-shadow:var(--sh-sm);background:#fff;border-radius:12px;padding:12px 18px;font-size:13px;font-weight:600}._timerChip_1yu49_204{background:var(--c-yellow);letter-spacing:.04em;border-radius:12px;align-items:center;gap:6px;padding:12px 18px;font-size:13px;font-weight:700;display:inline-flex;box-shadow:0 12px 24px #ffc83c66}@media (width<=820px){._grid_1yu49_12{grid-template-columns:1fr}}._section_143lw_1{background:var(--c-page);padding:100px 0 90px}._head_143lw_6{text-align:center;flex-direction:column;align-items:center;gap:16px;max-width:720px;margin:0 auto 50px;display:flex}._head_143lw_6 strong{color:var(--c-blue)}._grid_143lw_18{grid-template-columns:repeat(4,1fr);gap:20px;display:grid}._card_143lw_24{border-radius:var(--r-lg);box-shadow:var(--sh-sm);cursor:pointer;background:#fff;border:1px solid #1016280a;padding:26px 22px;transition:transform .25s,box-shadow .25s;display:block;position:relative;overflow:hidden}._card_143lw_24:before{content:"";background:var(--accent);width:100%;height:4px;position:absolute;top:0;left:0}._card_143lw_24:hover{box-shadow:var(--sh-md);transform:translateY(-6px)}._cardTop_143lw_52{justify-content:space-between;align-items:center;margin-bottom:16px;display:flex}._num_143lw_59{font-family:var(--font-display);color:var(--accent);font-size:26px;font-weight:800}._icon_143lw_66{background:color-mix(in srgb, var(--accent) 12%, #fff);border-radius:13px;place-items:center;width:46px;height:46px;display:grid}._badge_143lw_75{color:var(--c-muted);background:var(--c-line-2);border-radius:var(--r-pill);padding:4px 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var(--c-line);grid-template-columns:repeat(4,1fr);gap:24px;margin-bottom:70px;padding-bottom:70px;display:grid}._stat_43ywg_6{text-align:center}._statValue_43ywg_19{font-family:var(--font-display);background:linear-gradient(135deg, var(--c-blue), var(--c-cyan));-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text;font-size:48px;font-weight:800}._statLabel_43ywg_29{color:var(--c-muted);margin-top:8px;font-size:14px}._quotes_43ywg_35{grid-template-columns:repeat(3,1fr);gap:22px;display:grid}._quote_43ywg_35{border:1px solid var(--c-line);border-radius:var(--r-lg);background:#fafbfc;margin:0;padding:28px;transition:transform .25s,box-shadow .25s}._quote_43ywg_35:hover{box-shadow:var(--sh-md);transform:translateY(-5px)}._stars_43ywg_55{color:#ffb800;letter-spacing:2px;margin-bottom:14px}._quote_43ywg_35 blockquote{color:var(--c-ink-2);margin:0;font-size:16px;line-height:1.6}._quote_43ywg_35 figcaption{align-items:center;gap:12px;margin-top:22px;display:flex}._qAvatar_43ywg_75{border-radius:50%;flex-shrink:0;width:42px;height:42px}._quote_43ywg_35 figcaption strong{font-size:14.5px;display:block}._quote_43ywg_35 figcaption em{color:var(--c-muted);font-size:13px;font-style:normal}@media (width<=900px){._statsRow_43ywg_6{grid-template-columns:repeat(2,1fr);row-gap:36px}._quotes_43ywg_35{grid-template-columns:1fr}}._section_ek8fg_1{background:var(--c-page);padding:20px 0 100px}._box_ek8fg_6{border-radius:var(--r-xl);text-align:center;color:#fff;box-shadow:var(--sh-lg);background:linear-gradient(150deg,#1a2c66 0%,#2d6bff 55%,#3a8bff 100%);padding:80px 28px;position:relative;overflow:hidden}._grid_ek8fg_17{background-image:radial-gradient(#ffffff1f 1px,#0000 1px);background-size:24px 24px;position:absolute;inset:0;-webkit-mask-image:radial-gradient(60% 80%,#000,#0000 75%);mask-image:radial-gradient(60% 80%,#000,#0000 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var(--c-line);align-items:baseline;gap:12px;margin-bottom:18px;padding-bottom:12px;display:flex}._categoryTitle_r0ycg_51{letter-spacing:-.01em;color:var(--c-ink);margin:0;font-size:1.4rem}._categoryCount_r0ycg_58{color:var(--c-muted-2);font-size:13px;font-weight:600}._grid_r0ycg_30{grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:22px;display:grid}._card_r0ycg_70{border:1px solid var(--c-line);background:#fff;border-radius:18px;flex-direction:column;padding:26px 24px;text-decoration:none;transition:border-color .2s,box-shadow .2s;display:flex;position:relative;overflow:hidden;box-shadow:0 1px 2px #1011160a}._card_r0ycg_70:before{content:"";background:var(--accent,var(--c-blue));height:4px;position:absolute;inset:0 0 auto}._card_r0ycg_70:hover{border-color:var(--accent,var(--c-blue));box-shadow:0 14px 36px #1011161a}._cardTop_r0ycg_97{justify-content:space-between;align-items:center;margin-bottom:16px;display:flex}._badge_r0ycg_104{background:var(--soft,var(--c-blue-soft));border-radius:12px;place-items:center;width:44px;height:44px;font-size:22px;display:inline-grid}._category_r0ycg_34{letter-spacing:.02em;text-transform:uppercase;color:var(--accent,var(--c-blue));background:var(--soft,var(--c-blue-soft));border-radius:999px;padding:5px 10px;font-size:12.5px;font-weight:600}._cardTitle_r0ycg_125{letter-spacing:-.01em;color:var(--c-ink);margin:0 0 8px;font-size:1.35rem}._cardSummary_r0ycg_132{color:var(--c-muted);flex:1;margin:0 0 18px;font-size:.95rem;line-height:1.55}._metaList_r0ycg_140{color:var(--c-muted);flex-wrap:wrap;gap:8px 18px;margin:0 0 18px;padding:0;font-size:13.5px;list-style:none;display:flex}._metaList_r0ycg_140 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svg{width:100%;height:100%}._toolbar_8dfuy_28{z-index:1;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;margin-bottom:22px;display:flex;position:relative}._count_8dfuy_39{color:var(--c-ink);-webkit-backdrop-filter:blur(14px)saturate(180%);backdrop-filter:blur(14px)saturate(180%);border-radius:var(--r-pill);background:#ffffff9e;border:1px solid #ffffffbf;align-items:center;gap:8px;padding:8px 16px;font-size:13px;font-weight:700;display:inline-flex;box-shadow:0 4px 14px #1016280f,inset 0 1px #ffffffd9}._expandAll_8dfuy_55{color:var(--cl,var(--c-blue));background:color-mix(in srgb, var(--cl,var(--c-blue)) 12%, #fff);border-radius:var(--r-pill);padding:9px 18px;font-size:13px;font-weight:700;transition:background .18s,transform .18s}._expandAll_8dfuy_55:hover{background:color-mix(in srgb, var(--cl,var(--c-blue)) 20%, #fff);transform:translateY(-1px)}._expandAll_8dfuy_55:active{transform:translateY(0)scale(.97)}._list_8dfuy_73{z-index:1;flex-direction:column;gap:18px;display:flex;position:relative}._list_8dfuy_73:before{content:"";background:linear-gradient(180deg, var(--c-line) 0%, #e4e7ed 50%, transparent 100%);z-index:0;border-radius:3px;width:3px;position:absolute;top:26px;bottom:26px;left:23px}._item_8dfuy_93{z-index:1;display:block;position:relative}._rail_8dfuy_99{z-index:3;justify-content:center;width:48px;padding-top:0;display:flex;position:absolute;top:18px;left:18px}._node_8dfuy_110{width:48px;height:48px;font-family:var(--font-mono);color:var(--cl);-webkit-backdrop-filter:blur(14px)saturate(180%);backdrop-filter:blur(14px)saturate(180%);background:#ffffff8c;border:1.5px solid #fffc;border-radius:16px;justify-content:center;align-items:center;font-size:15px;font-weight:800;transition:transform .2s,box-shadow .2s,background .2s,color .2s;display:inline-flex;box-shadow:0 8px 22px #1016281f,inset 0 1px #ffffffe6}._nodeOn_8dfuy_130{color:#fff;background:linear-gradient(150deg, var(--cl), color-mix(in srgb, var(--cl) 72%, #000));border-color:color-mix(in srgb, var(--cl) 40%, #fff);box-shadow:0 12px 28px color-mix(in srgb, var(--cl) 45%, transparent), inset 0 1px 0 #ffffff80}._concept_8dfuy_140{-webkit-backdrop-filter:blur(22px)saturate(185%);backdrop-filter:blur(22px)saturate(185%);border-radius:var(--r-lg);background:#fff9;border:1px solid #ffffffb3;flex:1;min-width:0;transition:box-shadow .25s,border-color .25s,background .25s;position:relative;overflow:hidden;box-shadow:0 10px 34px #1016281a,inset 0 1px #ffffffd9}._concept_8dfuy_140:after{content:"";pointer-events:none;z-index:0;background:linear-gradient(#ffffff80,#fff0);height:70px;position:absolute;inset:0 0 auto}._conceptOpen_8dfuy_165{border-color:color-mix(in srgb, var(--cl) 28%, #ffffffb3);background:#ffffffb8;box-shadow:0 22px 54px #10162824,inset 0 1px #fffffff2}._conceptOpen_8dfuy_165:before{content:"";background:linear-gradient(90deg, var(--cl), color-mix(in srgb, var(--cl) 45%, #fff));z-index:1;height:5px;display:block;position:relative}._conceptHead_8dfuy_181{z-index:1;text-align:left;align-items:center;gap:14px;width:100%;padding:22px 24px 16px 86px;display:flex;position:relative}._conceptTitle_8dfuy_192{font-family:var(--font-display);letter-spacing:-.015em;color:var(--c-ink);flex:1;font-size:17px;font-weight:800;line-height:1.3}._conceptChevron_8dfuy_202{flex:none;display:inline-flex}._conceptPeek_8dfuy_207{z-index:1;color:var(--c-muted);padding:0 24px 22px 86px;font-size:14.5px;line-height:1.6;position:relative}._conceptBody_8dfuy_216{z-index:1;position:relative;overflow:hidden}._conceptInner_8dfuy_222{flex-direction:column;gap:22px;padding:8px 24px 26px;display:flex}._conceptInner_8dfuy_222>*{animation:.5s cubic-bezier(.16,1,.3,1) both 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18px;font-size:16px;font-weight:500;line-height:1.65;position:relative}._paragraph_8dfuy_261{color:var(--c-ink-2);font-size:15px;line-height:1.75}._services_8dfuy_268{border:1px solid var(--c-line);border-radius:var(--r-sm);background:color-mix(in srgb, var(--cl) 4%, #fff);flex-wrap:wrap;gap:12px;padding:14px;display:flex}._serviceItem_8dfuy_278{text-align:center;flex-direction:column;align-items:center;gap:6px;width:84px;display:flex}._serviceLabel_8dfuy_287{color:var(--c-muted);font-size:11.5px;font-weight:600;line-height:1.25}._callout_8dfuy_295{border-radius:var(--r-md);background:linear-gradient(135deg,#fffdf3,#fff4d6);border:1px solid #f3e3a8;gap:13px;padding:15px 17px;display:flex;box-shadow:0 8px 22px #d6a7001a}._calloutIcon_8dfuy_304{color:#d6a700;flex:none;margin-top:2px}._callout_8dfuy_295 p{color:#6b5618;font-size:14.5px;line-height:1.6}._callout_8dfuy_295 strong{color:#b58900}._section_8dfuy_319{width:100%;margin-top:0}._sectionTitle_8dfuy_323{text-transform:uppercase;letter-spacing:.07em;color:var(--c-ink);border-radius:var(--r-pill);background:color-mix(in srgb, var(--cl) 10%, #fff);align-items:center;gap:9px;margin-bottom:14px;padding:6px 12px 6px 10px;font-size:12.5px;font-weight:800;display:inline-flex}._sectionTitle_8dfuy_323 svg{color:var(--cl)}._keyPoints_8dfuy_340{gap:10px;display:grid}._keyPoints_8dfuy_340 li{color:var(--c-ink-2);border-radius:var(--r-sm);background:#ffffff80;border:1px solid #ffffffb3;align-items:flex-start;gap:12px;padding:12px 14px;font-size:14.5px;line-height:1.6;transition:transform .16s,border-color .16s,background .16s;display:flex;box-shadow:inset 0 1px #fffc}._keyPoints_8dfuy_340 li:hover{border-color:color-mix(in srgb, var(--cl) 30%, #ffffffb3);background:#ffffffd9;transform:translate(3px)}._keyPoints_8dfuy_340 li svg{flex:none;margin-top:3px}._codeWrap_8dfuy_369{border-radius:var(--r-md);width:100%;box-shadow:var(--sh-md);border:1px solid #20262f;overflow:hidden}._codeBar_8dfuy_376{background:#161b22;justify-content:space-between;align-items:center;padding:10px 14px;display:flex}._dots_8dfuy_383{gap:6px;display:inline-flex}._dots_8dfuy_383 i{border-radius:50%;width:11px;height:11px}._dots_8dfuy_383 i:first-child{background:#ff5f57}._dots_8dfuy_383 i:nth-child(2){background:#febc2e}._dots_8dfuy_383 i:nth-child(3){background:#28c840}._codeLang_8dfuy_395{font-family:var(--font-mono);color:#8b94a3;text-transform:lowercase;font-size:12px}._code_8dfuy_369{background:#0d1117;margin:0;padding:16px 18px;overflow-x:auto}._code_8dfuy_369 code{font-family:var(--font-mono);color:#c9d4e3;white-space:pre;font-size:13.5px;line-height:1.7}._caption_8dfuy_415{color:var(--c-muted);margin-top:10px;font-size:13.5px;line-height:1.6}._diagram_8dfuy_423{background:radial-gradient(circle at 20% 20%, color-mix(in srgb, var(--cl) 12%, #fff), transparent 60%), color-mix(in srgb, var(--cl) 6%, #fff);border:1px solid color-mix(in srgb, var(--cl) 22%, #fff);border-radius:var(--r-md);justify-content:center;width:100%;padding:24px;display:flex}._mermaid_8dfuy_434{justify-content:center;width:100%;display:flex}._mermaid_8dfuy_434 svg{max-width:100%;height:auto}._mistakes_8dfuy_445{border-radius:var(--r-md);background:linear-gradient(135deg,#fff6f6,#ffecec);border:1px solid #ffd2d2;padding:16px 18px}._mistakesTitle_8dfuy_451{text-transform:uppercase;letter-spacing:.07em;color:#e04a44;align-items:center;gap:8px;margin-bottom:12px;font-size:12.5px;font-weight:800;display:inline-flex}._mistakes_8dfuy_445 ul{flex-direction:column;gap:10px;display:flex}._mistakes_8dfuy_445 li{color:#8a3b38;padding-left:20px;font-size:14px;line-height:1.6;position:relative}._mistakes_8dfuy_445 li:before{content:"✕";color:#e76b66;font-size:11px;font-weight:800;position:absolute;top:1px;left:2px}._exercises_8dfuy_485{flex-direction:column;gap:14px;display:flex}._exercise_8dfuy_485{border-radius:var(--r-md);background:#ffffff80;border:1px solid #ffffffb3;padding:16px 18px;transition:border-color .18s,box-shadow .18s;box-shadow:inset 0 1px #fffc}._exercise_8dfuy_485:hover{border-color:color-mix(in srgb, var(--cl) 22%, #ffffffb3);box-shadow:var(--sh-sm)}._exerciseHead_8dfuy_502{align-items:center;gap:10px;margin-bottom:10px;display:flex}._exerciseType_8dfuy_508{text-transform:uppercase;letter-spacing:.05em;border-radius:var(--r-pill);padding:5px 11px;font-size:11px;font-weight:800}._exerciseNum_8dfuy_516{color:var(--c-muted-2);font-size:12px;font-weight:700}._exercisePrompt_8dfuy_521{color:var(--c-ink-2);font-size:14.5px;font-weight:500;line-height:1.6}._codeMini_8dfuy_528{border-radius:var(--r-sm);background:#0d1117;margin:12px 0 0;padding:14px 16px;overflow-x:auto}._codeMini_8dfuy_528 code{font-family:var(--font-mono);color:#c9d4e3;white-space:pre;font-size:13px;line-height:1.65}._exerciseActions_8dfuy_543{flex-wrap:wrap;gap:10px;margin-top:14px;display:flex}._ghostBtn_8dfuy_549,._solveBtn_8dfuy_550{border-radius:var(--r-pill);align-items:center;gap:7px;padding:9px 16px;font-size:13px;font-weight:700;transition:transform .16s,box-shadow .16s,opacity .16s;display:inline-flex}._ghostBtn_8dfuy_549{color:var(--c-ink);border:1px solid var(--c-line);background:#fff}._ghostBtn_8dfuy_549:hover{border-color:#d7dae0;transform:translateY(-1px)}._solveBtn_8dfuy_550{color:#fff}._solveBtn_8dfuy_550:hover{transform:translateY(-1px);box-shadow:0 8px 20px #2d6bff47}._ghostBtn_8dfuy_549:active,._solveBtn_8dfuy_550:active{transform:translateY(0)scale(.98)}._hint_8dfuy_581{color:#6b5618;font-size:14px;line-height:1.6;overflow:hidden}._hint_8dfuy_581 strong{color:#b58900}._hint_8dfuy_581>*{border-radius:var(--r-sm);background:#fff8e6;border:1px solid #f4e7b8;margin-top:12px;padding:12px 14px;display:block}._solution_8dfuy_599{overflow:hidden}._solutionLabel_8dfuy_602{text-transform:uppercase;letter-spacing:.06em;color:#fff;background:var(--c-green);border-radius:var(--r-pill);align-items:center;margin-top:14px;padding:5px 11px;font-size:11px;font-weight:800;display:inline-flex}._solutionText_8dfuy_615{color:var(--c-ink-2);margin-top:10px;font-size:14px;line-height:1.65}._checks_8dfuy_623{gap:10px;display:grid}._checks_8dfuy_623 li{color:var(--c-ink-2);background:color-mix(in srgb, var(--cl) 6%, #fff);border:1px solid color-mix(in srgb, var(--cl) 16%, #fff);border-radius:var(--r-sm);padding:12px 14px 12px 40px;font-size:14.5px;line-height:1.55;position:relative}._checks_8dfuy_623 li:before{content:"?";color:#fff;background:var(--cl);border-radius:50%;justify-content:center;align-items:center;width:20px;height:20px;font-size:12px;font-weight:800;display:inline-flex;position:absolute;top:50%;left:12px;transform:translateY(-50%)}._docsLink_8dfuy_656{border-radius:var(--r-pill);background:color-mix(in srgb, var(--cl) 10%, #fff);align-self:flex-start;align-items:center;gap:8px;padding:10px 16px;font-size:14px;font-weight:800;transition:gap .18s,background .18s;display:inline-flex}._docsLink_8dfuy_656:hover{background:color-mix(in srgb, var(--cl) 18%, #fff);gap:11px}@media (width<=720px){._list_8dfuy_73:before{left:17px}._rail_8dfuy_99{width:36px;top:16px;left:14px}._node_8dfuy_110{border-radius:12px;width:36px;height:36px;font-size:13px}._conceptInner_8dfuy_222{padding:6px 16px 22px}._conceptHead_8dfuy_181{padding:16px 16px 14px 64px}._conceptPeek_8dfuy_207{padding:0 16px 18px 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30px;display:flex}._topLeft_1s88r_27{flex-shrink:0;align-items:center;gap:16px;display:flex}._divider_1s88r_34{background:var(--c-line);width:1px;height:22px}._courseTag_1s88r_40{color:var(--c-muted);font-size:14px;font-weight:600;display:none}._topRight_1s88r_47{flex-wrap:wrap;justify-content:flex-end;align-items:center;gap:12px;display:flex}._progressMini_1s88r_55{color:var(--c-muted);align-items:center;gap:9px;font-size:12.5px;font-weight:600;display:flex}._miniTrack_1s88r_64{background:var(--c-line);border-radius:6px;width:78px;height:7px;overflow:hidden}._miniFill_1s88r_72{background:linear-gradient(90deg, var(--c-blue), var(--c-cyan));border-radius:6px;height:100%}._resetBtn_1s88r_78,._roadmapLink_1s88r_79,._homeLink_1s88r_80{border-radius:var(--r-pill);padding:8px 15px;font-size:13px;font-weight:600;transition:transform .16s,background .18s,color .18s,border-color 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em{color:var(--c-blue);background:#2d6bff24}._navIcon_1s88r_189{color:var(--c-muted);flex-shrink:0}._navBtn_1s88r_170 em{background:var(--c-line-2);color:var(--c-muted);border-radius:7px;margin-left:auto;padding:2px 8px;font-size:11px;font-style:normal;font-weight:600}._moduleBlock_1s88r_207{margin-bottom:14px}._moduleTitle_1s88r_211{color:var(--c-ink);align-items:center;gap:9px;padding:6px 8px;font-size:13px;font-weight:700;display:flex}._moduleDot_1s88r_221{border-radius:50%;flex-shrink:0;width:8px;height:8px}._moduleTitle_1s88r_211 em{color:var(--c-muted-2);margin-left:auto;font-size:11px;font-style:normal;font-weight:600}._lessonList_1s88r_236{margin-top:2px}._lessonItem_1s88r_238{border-radius:10px;align-items:center;gap:9px;width:100%;padding:4px 10px 4px 18px;transition:background 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5px;font-size:13.5px;font-weight:600;display:flex}._userAvatar_1s88r_360{color:#fff;background:linear-gradient(135deg,#ff9f43,#ff7a59);border-radius:50%;place-items:center;width:28px;height:28px;font-size:12px;font-weight:700;display:grid}._search_1s88r_373{position:relative}._searchIcon_1s88r_376{color:var(--c-muted-2);pointer-events:none;position:absolute;top:50%;left:13px;transform:translateY(-50%)}._searchInput_1s88r_384{width:210px;height:38px;font-family:var(--font-body);color:var(--c-ink);border:1px solid var(--c-line);background:#fff;border-radius:11px;padding:0 14px 0 38px;font-size:13.5px;transition:width .2s,border-color .18s,box-shadow .18s}._searchInput_1s88r_384::placeholder{color:var(--c-muted-2)}._searchInput_1s88r_384:focus{border-color:#cdd9f7;outline:none;width:250px;box-shadow:0 0 0 4px #2d6bff1a}._searchResults_1s88r_404{border:1px solid var(--c-line);width:320px;max-width:80vw;box-shadow:var(--sh-md);z-index:40;background:#fff;border-radius:14px;padding:6px;position:absolute;top:calc(100% + 8px);right:0}._searchItem_1s88r_417{text-align:left;border-radius:9px;align-items:center;gap:10px;width:100%;padding:9px 11px;transition:background .14s;display:flex}._searchItem_1s88r_417:hover{background:var(--c-blue-soft)}._searchDot_1s88r_428{border-radius:50%;flex-shrink:0;width:8px;height:8px}._searchTitle_1s88r_434{min-width:0;color:var(--c-ink);white-space:nowrap;text-overflow:ellipsis;flex:1;font-size:13px;font-weight:500;overflow:hidden}._searchModule_1s88r_444{color:var(--c-muted-2);flex-shrink:0;font-size:11px;font-weight:600}._searchEmpty_1s88r_450{color:var(--c-muted);text-align:center;padding:12px;font-size:13px}._bellWrap_1s88r_458{position:relative}._iconBtnOn_1s88r_461{color:var(--c-blue);background:var(--c-blue-soft);border-color:#cdd9f7}._bellDot_1s88r_466{background:var(--c-orange);border:1.5px solid #fff;border-radius:50%;width:7px;height:7px;position:absolute;top:8px;right:9px}._popBackdrop_1s88r_476{z-index:39;cursor:default;position:fixed;inset:0}._bellPop_1s88r_482{border:1px solid var(--c-line);width:280px;box-shadow:var(--sh-md);z-index:40;background:#fff;border-radius:14px;padding:8px;position:absolute;top:calc(100% + 8px);right:0}._bellHead_1s88r_494{text-transform:uppercase;letter-spacing:.08em;color:var(--c-muted-2);padding:6px 10px 8px;font-size:11px;font-weight:700;display:block}._bellItem_1s88r_503{text-align:left;border-radius:9px;flex-direction:column;gap:2px;width:100%;padding:9px 11px;transition:background .14s;display:flex}button._bellItem_1s88r_503:hover{background:var(--c-blue-soft)}._bellItem_1s88r_503 strong{color:var(--c-ink);font-size:13px;font-weight:700}._bellItem_1s88r_503 span{color:var(--c-muted);font-size:12.5px;line-height:1.4}._greetingRow_1s88r_526{margin-bottom:26px}._greeting_1s88r_526{letter-spacing:-.025em;font-size:clamp(26px,3.4vw,34px);font-weight:800}._greeting_1s88r_526 strong{color:var(--c-blue)}._greetingSub_1s88r_537{color:var(--c-muted);margin-top:7px;font-size:15px}._widgets_1s88r_544{grid-template-columns:1.25fr .95fr 1fr;gap:18px;margin-bottom:18px;display:grid}._widget_1s88r_544{border:1px solid var(--c-line);border-radius:var(--r-lg);background:#fff;padding:22px;transition:box-shadow .25s,transform .25s}._widget_1s88r_544:hover{box-shadow:var(--sh-md);transform:translateY(-2px)}._widgetHead_1s88r_563{justify-content:space-between;align-items:center;margin-bottom:18px;display:flex}._widgetHead_1s88r_563 h3{letter-spacing:-.01em;font-size:15px;font-weight:700}._weekTag_1s88r_575{color:var(--c-muted);background:var(--c-line-2);border-radius:var(--r-pill);padding:4px 10px;font-size:11px;font-weight:600}._planList_1s88r_585 li{font-size:13.5px}._planList_1s88r_585 li button{text-align:left;width:100%;color:var(--c-ink-2);border-bottom:1px solid var(--c-line-2);align-items:center;gap:11px;padding:9px 0;transition:color .16s;display:flex}._planList_1s88r_585 li:last-child button{border-bottom:none}._planList_1s88r_585 li button:hover{color:var(--c-blue)}._planList_1s88r_585 li button:hover ._planBox_1s88r_601{border-color:var(--c-blue)}._planBox_1s88r_601{color:#fff;border:1.7px solid #d2d6de;border-radius:6px;flex-shrink:0;place-items:center;width:18px;height:18px;transition:border-color .16s;display:grid}._planDone_1s88r_615{color:var(--c-muted-2);border-top:1px solid var(--c-line-2);align-items:center;gap:11px;padding:9px 0;font-size:13.5px;text-decoration:line-through;display:flex}._planDone_1s88r_615 ._planBox_1s88r_601{background:var(--c-green);border-color:var(--c-green)}._timerWidget_1s88r_631{text-align:center;flex-direction:column;align-items:center;display:flex}._liveTag_1s88r_638{color:var(--c-muted);background:var(--c-line-2);border-radius:var(--r-pill);align-items:center;gap:6px;padding:4px 11px 4px 9px;font-size:11px;font-weight:600;display:inline-flex}._liveTag_1s88r_638:before{content:"";background:var(--c-muted-2);border-radius:50%;width:6px;height:6px}._liveOn_1s88r_656{color:var(--c-green);background:#2fcc711f}._liveOn_1s88r_656:before{background:var(--c-green);animation:1.6s infinite _blink_1s88r_1}@keyframes _blink_1s88r_1{0%,to{opacity:1}50%{opacity:.3}}._bigTimer_1s88r_669{font-family:var(--font-display);letter-spacing:-.04em;font-variant-numeric:tabular-nums;margin:6px 0 18px;font-size:clamp(30px,4vw,40px);font-weight:800}._timerCtrl_1s88r_678{justify-content:center;gap:12px;display:flex}._pauseBtn_1s88r_684,._stopBtn_1s88r_685{color:#fff;border-radius:50%;place-items:center;width:46px;height:46px;transition:box-shadow .2s;display:grid}._pauseBtn_1s88r_684{background:var(--c-blue);box-shadow:0 8px 18px #2d6bff52}._pauseBtn_1s88r_684:hover{box-shadow:0 10px 22px #2d6bff6b}._stopBtn_1s88r_685{color:#ff5d5d;border:1px solid var(--c-line);background:#fff}._stopBtn_1s88r_685:hover{border-color:#ffd1d1}._timerHint_1s88r_706{color:var(--c-muted);margin-top:16px;font-size:12.5px}._activityRow_1s88r_713{align-items:center;gap:18px;display:flex}._ring_1s88r_719{flex-shrink:0;width:104px;height:104px;transform:rotate(-90deg)}._ringBg_1s88r_725{fill:none;stroke:var(--c-line-2);stroke-width:9px}._ringFg_1s88r_730{fill:none;stroke-width:9px;stroke-linecap:round}._ringStats_1s88r_735{color:var(--c-ink-2);flex-direction:column;gap:12px;font-size:13px;font-weight:500;display:flex}._ringStats_1s88r_735 span{align-items:center;gap:8px;display:flex}._ringStats_1s88r_735 i{border-radius:3px;width:9px;height:9px}._assigned_1s88r_755{border:1px solid var(--c-line);border-radius:var(--r-lg);background:#fff;margin-bottom:18px;padding:22px 24px}._tabs_1s88r_763{color:var(--c-muted);border-bottom:1px solid var(--c-line);gap:22px;margin-bottom:18px;font-size:13.5px;display:flex}._tabs_1s88r_763 span,._tabs_1s88r_763 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#2fcc714d}._completed_1s88r_1023:hover{box-shadow:0 11px 26px #2fcc7166}._player_1s88r_1029{border-radius:var(--r-xl);background:radial-gradient(circle at 50% 42%, #ffffff24, transparent 58%), linear-gradient(155deg, var(--accent), #161b27);flex-direction:column;justify-content:center;align-items:center;gap:18px;width:100%;height:min(440px,54vh);margin-bottom:30px;display:flex;position:relative;overflow:hidden}._player_1s88r_1029:after{content:"";background-image:radial-gradient(#ffffff0f 1px,#0000 1px);background-size:22px 22px;position:absolute;inset:0;-webkit-mask-image:radial-gradient(60% 60%,#000,#0000 75%);mask-image:radial-gradient(60% 60%,#000,#0000 75%)}._playBtn_1s88r_1055{z-index:1;width:70px;height:70px;color:var(--c-ink);background:#fff;border-radius:50%;place-items:center;padding-left:3px;display:grid;position:relative;box-shadow:0 16px 36px #00000047}._playerHint_1s88r_1069{z-index:1;color:#ffffffd1;font-size:14px;position:relative}._lessonGrid_1s88r_1076{grid-template-columns:1fr 1fr;gap:30px;margin-bottom:28px;display:grid}._block_1s88r_1083{margin-bottom:28px}._block_1s88r_1083 h4{letter-spacing:-.01em;margin-bottom:12px;font-size:17px;font-weight:700}._placeholder_1s88r_1090{color:var(--c-muted);font-size:15px;line-height:1.7}._bullets_1s88r_1096 li{color:var(--c-ink-2);border-bottom:1px solid var(--c-line-2);padding:10px 0 10px 26px;font-size:14.5px;position:relative}._bullets_1s88r_1096 li:last-child{border-bottom:none}._bullets_1s88r_1096 li:before{content:"";background:var(--c-blue);border-radius:50%;width:7px;height:7px;position:absolute;top:16px;left:2px}._bullets_1s88r_1096 em{color:var(--c-muted-2);font-size:13px;font-style:normal}._code_1s88r_1116{color:#61dafb;border-radius:var(--r-md);font-family:var(--font-mono);background:#0e1116;padding:46px 24px 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h3{font-size:16px;font-weight:700}._meta_1e6u6_100{color:var(--c-muted);margin-top:4px;font-size:12.5px;display:block}._headRight_1e6u6_107{flex-shrink:0;align-items:center;gap:12px;display:flex}._ring_1e6u6_114{background:radial-gradient(closest-side, #fff 72%, transparent 73%), conic-gradient(var(--ring) calc(var(--pct) * 1%), var(--c-line) 0);border-radius:50%;place-items:center;width:42px;height:42px;font-size:0;display:grid}._ring_1e6u6_114 span{color:var(--c-ink-2);font-size:10.5px;font-weight:700}._chevron_1e6u6_131{color:var(--c-muted);font-size:18px;line-height:1}._track_1e6u6_137{background:var(--c-line);border-radius:4px;height:5px;margin:0 18px 16px;overflow:hidden}._fill_1e6u6_144{border-radius:4px;height:100%}._body_1e6u6_150{overflow:hidden}._bodyInner_1e6u6_153{border-top:1px solid var(--c-line-2);padding:14px 18px 18px}._markAll_1e6u6_159{border-radius:var(--r-pill);margin-bottom:12px;padding:7px 14px;font-size:12.5px;font-weight:600;transition:filter 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35%,#000 30%,#0000 78%)}._heroInner_17rrl_85{border-radius:var(--r-xl);box-shadow:none;-webkit-backdrop-filter:saturate(180%)blur(12px);backdrop-filter:saturate(180%)blur(12px);background:#ffffffc7;border:1px solid #1016280d;justify-content:space-between;align-items:center;gap:40px;padding:38px 44px;display:flex;position:relative;overflow:hidden}._heroInner_17rrl_85:before{content:"";background:radial-gradient(closest-side, color-mix(in srgb, var(--rm,var(--c-blue)) 16%, transparent), transparent 72%);border-radius:50%;width:320px;height:320px;position:absolute;top:-110px;right:-90px}._heroText_17rrl_109{max-width:680px}._heroEyebrow_17rrl_110{font-family:var(--font-mono);margin-bottom:16px}._heroText_17rrl_109 h1{color:var(--c-ink);font-size:clamp(30px,5vw,46px);font-weight:800}._heroText_17rrl_109 p{color:var(--c-muted);margin-top:16px;font-size:15px;line-height:1.65}._switcher_17rrl_127{flex-wrap:wrap;gap:8px;margin-bottom:20px;display:flex}._switchPill_17rrl_133{color:var(--c-ink-2);border-radius:var(--r-pill);border:1px solid var(--c-line);background:#fff;align-items:center;gap:8px;padding:7px 15px 7px 11px;font-size:13px;font-weight:600;transition:border-color .18s,transform .18s,box-shadow .18s;display:inline-flex}._switchPill_17rrl_133:hover{border-color:color-mix(in srgb, var(--p) 45%, var(--c-line));transform:translateY(-1px)}._switchActive_17rrl_150{color:#fff;background:var(--p);border-color:var(--p);box-shadow:0 8px 20px color-mix(in srgb, var(--p) 38%, transparent)}._heroHead_17rrl_158{align-items:center;gap:12px;margin-bottom:8px;display:flex}._heroBadge_17rrl_164{background:linear-gradient(140deg, color-mix(in srgb, var(--rm) 75%, #fff), var(--rm));width:44px;height:44px;box-shadow:0 8px 18px color-mix(in srgb, var(--rm) 38%, transparent);border-radius:13px;flex-shrink:0;place-items:center;display:grid}._heroHead_17rrl_158 ._heroEyebrow_17rrl_110{margin-bottom:0}._legend_17rrl_177{flex-wrap:wrap;gap:22px;margin-top:22px;display:flex}._legend_17rrl_177 span{color:var(--c-ink-2);align-items:center;gap:8px;font-size:13px;display:flex}._legend_17rrl_177 i{border-radius:50%;width:12px;height:12px}._lIdle_17rrl_191{box-sizing:border-box;background:#fff;border:2px solid #cfd4dd}._lProg_17rrl_192{background:var(--rm,#2d6bff)}._lDone_17rrl_193{background:#2fcc71}._heroRing_17rrl_195{text-align:center;flex-shrink:0}._heroText_17rrl_109,._heroRing_17rrl_195{z-index:1;position:relative}._heroRing_17rrl_195{border:1px solid var(--c-line);box-shadow:var(--sh-sm);background:#fff;border-radius:28px;padding:22px 24px}._bigRing_17rrl_208{background:radial-gradient(closest-side, #fff 70%, transparent 71%), conic-gradient(var(--rm,var(--c-blue)) calc(var(--pct) * 1%), var(--c-line) 0);width:118px;height:118px;box-shadow:var(--sh-md);border-radius:50%;place-items:center;margin:0 auto;display:grid}._bigRingInner_17rrl_220{flex-direction:column;align-items:center;display:flex}._bigRingInner_17rrl_220 strong{font-family:var(--font-display);color:var(--c-ink);font-size:30px;font-weight:800}._bigRingInner_17rrl_220 span{color:var(--c-muted);font-size:12px}._heroRing_17rrl_195 p{color:var(--c-muted);margin-top:14px;font-size:13px}._mapSection_17rrl_231{padding:22px 0 0}._road_17rrl_233{padding:10px 0 40px;position:relative}._spineTrack_17rrl_238,._spineFill_17rrl_239{z-index:0;border-radius:5px;width:5px;position:absolute;top:0;left:50%;transform:translate(-50%)}._spineTrack_17rrl_238{background:var(--c-line);bottom:0}._spineFill_17rrl_239{background:linear-gradient(180deg, var(--rm,var(--c-blue)), color-mix(in srgb, var(--rm,var(--c-blue)) 45%, #2fcc71));box-shadow:0 0 14px color-mix(in srgb, var(--rm,var(--c-blue)) 35%, transparent);top:0}._level_17rrl_258{margin-bottom:18px;position:relative}._levelMarker_17rrl_260{z-index:3;text-align:center;flex-direction:column;align-items:center;gap:10px;margin:26px 0 18px;display:flex;position:relative}._levelBadge_17rrl_270{width:58px;height:58px;font-family:var(--font-display);color:#fff;background:var(--accent);box-shadow:0 14px 30px color-mix(in srgb, var(--accent) 40%, transparent);border-radius:18px;place-items:center;font-size:28px;font-weight:800;display:grid}._levelBadgeDone_17rrl_283{outline:4px solid #2fcc7140}._levelInfo_17rrl_286{max-width:440px}._levelTop_17rrl_287{justify-content:center;align-items:center;gap:12px;display:flex}._levelTop_17rrl_287 h2{font-size:24px;font-weight:800}._levelPill_17rrl_294{border-radius:var(--r-pill);padding:4px 12px;font-size:12px;font-weight:700}._levelInfo_17rrl_286 p{color:var(--c-muted);margin-top:6px;font-size:14px}._finish_17rrl_302{z-index:3;flex-direction:column;align-items:center;gap:10px;margin-top:30px;display:flex;position:relative}._finish_17rrl_302 span{width:64px;height:64px;box-shadow:var(--sh-md);background:#fff;border-radius:50%;place-items:center;font-size:30px;display:grid}._finishDone_17rrl_321{background:linear-gradient(135deg,#ffe27a,#ff9f43)!important;box-shadow:0 16px 34px #ff9f4373!important}._finish_17rrl_302 p{color:var(--c-muted);font-size:14px;font-weight:600}@media (width<=860px){._heroInner_17rrl_85{flex-direction:column-reverse;align-items:flex-start;padding:28px 24px}._spineTrack_17rrl_238,._spineFill_17rrl_239{left:20px;transform:none}._levelMarker_17rrl_260{text-align:left;align-items:flex-start;padding-left:4px}._levelTop_17rrl_287{justify-content:flex-start}}._bar_10lzq_1{z-index:50;-webkit-backdrop-filter:saturate(180%)blur(12px);backdrop-filter:saturate(180%)blur(12px);border-bottom:1px solid var(--c-line);background:#ffffffdb;position:sticky;top:0}._barInner_10lzq_10{justify-content:space-between;align-items:center;height:68px;display:flex}._nav_10lzq_17{gap:22px;font-size:15px;font-weight:600;display:flex}._nav_10lzq_17 a{color:var(--c-ink-2)}._nav_10lzq_17 a:hover{color:var(--c-blue)}._main_10lzq_31{background:var(--c-page);min-height:70vh;padding:56px 0 80px}._article_10lzq_37{background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--r-lg);max-width:760px;box-shadow:var(--sh-sm);padding:clamp(28px,5vw,56px)}._article_10lzq_37 h1{margin-bottom:8px;font-size:clamp(30px,5vw,42px)}._lead_10lzq_51{color:var(--c-ink-2);margin-bottom:8px;font-size:18px}._updated_10lzq_57{color:var(--c-muted);margin-bottom:28px;font-size:14px}._article_10lzq_37 h2{margin:34px 0 12px;font-size:22px}._article_10lzq_37 h3{margin:22px 0 8px;font-size:18px}._article_10lzq_37 p{color:var(--c-ink-2);margin-bottom:14px}._article_10lzq_37 ul{color:var(--c-ink-2);margin-bottom:16px;padding-left:22px;list-style:outside}._article_10lzq_37 li{margin-bottom:8px}._article_10lzq_37 a{color:var(--c-blue);text-decoration:underline}._article_10lzq_37 a:hover{color:var(--c-blue-dark)}._article_10lzq_37 pre{background:var(--c-ink);color:#e8eefc;border-radius:var(--r-sm);font-family:var(--font-mono);margin:0 0 18px;padding:16px 18px;font-size:13.5px;line-height:1.65;overflow-x:auto}._article_10lzq_37 :not(pre)>code{font-family:var(--font-mono);background:var(--c-line-2);border-radius:6px;padding:1px 6px;font-size:.9em}._article_10lzq_37 address{color:var(--c-ink-2);font-style:normal}._pillar_2080m_1{margin-top:44px}._pillar_2080m_1:first-of-type{margin-top:8px}._pillarTitle_2080m_7{margin-bottom:4px;font-size:25px}._pillarLead_2080m_11{color:var(--c-muted);margin:0 0 6px}._postList_2080m_16{margin:6px 0 0;padding:0;list-style:none}._post_2080m_16{border-top:1px solid var(--c-line);padding:24px 0}._post_2080m_16:first-child{border-top:none;padding-top:6px}._postTitle_2080m_31{margin-bottom:8px;font-size:21px}._postTitle_2080m_31 a{color:var(--c-ink)}._postTitle_2080m_31 a:hover{color:var(--c-blue)}._postMeta_2080m_42{color:var(--c-muted);flex-wrap:wrap;align-items:center;gap:8px;margin-bottom:10px;font-size:13px;display:flex}._tags_2080m_52{flex-wrap:wrap;gap:6px;display:flex}._tag_2080m_52{background:var(--c-blue-soft);color:var(--c-blue-dark);border-radius:999px;padding:2px 10px;font-size:12px;font-weight:600}._postExcerpt_2080m_66{color:var(--c-ink-2);margin-bottom:10px}._readMore_2080m_70{color:var(--c-blue);font-weight:600}._articleMeta_2080m_76{color:var(--c-muted);margin:0 0 22px;font-size:14px}._backLink_2080m_81{margin-bottom:18px;font-size:14px}._rule_2080m_85{border:none;border-top:1px solid var(--c-line);margin:30px 0 18px}._wrap_58krq_1{text-align:center;place-items:center;min-height:78vh;padding:80px 20px;display:grid}._inner_58krq_9{flex-direction:column;align-items:center;gap:14px;max-width:460px;display:flex}._code_58krq_17{font-family:var(--font-display);color:var(--c-blue);margin:0;font-size:clamp(64px,12vw,120px);font-weight:800;line-height:1}._title_58krq_26{font-size:clamp(24px,4vw,34px)}._sub_58krq_30{color:var(--c-muted);margin:0 0 8px}._actions_58krq_35{flex-wrap:wrap;justify-content:center;gap:12px;display:flex}