@font-face{font-family:Unbounded;font-style:normal;font-weight:600;font-display:swap;src:url(../media/d0d9446e69c4847e-s.3h31fjnwrfycc.woff2)format("woff2");unicode-range:U+460-52F,U+1C80-1C8A,U+20B4,U+2DE0-2DFF,U+A640-A69F,U+FE2E-FE2F}@font-face{font-family:Unbounded;font-style:normal;font-weight:600;font-display:swap;src:url(../media/4e1c87b7aa9e2f2f-s.p.3o02-8iknf6dl.woff2)format("woff2");unicode-range:U+301,U+400-45F,U+490-491,U+4B0-4B1,U+2116}@font-face{font-family:Unbounded;font-style:normal;font-weight:600;font-display:swap;src:url(../media/3fd967fc5374d70a-s.42u1-lj4buy61.woff2)format("woff2");unicode-range:U+102-103,U+110-111,U+128-129,U+168-169,U+1A0-1A1,U+1AF-1B0,U+300-301,U+303-304,U+308-309,U+323,U+329,U+1EA0-1EF9,U+20AB}@font-face{font-family:Unbounded;font-style:normal;font-weight:600;font-display:swap;src:url(../media/dd14639a62c56cb2-s.0kda-l-rfpyyq.woff2)format("woff2");unicode-range:U+100-2BA,U+2BD-2C5,U+2C7-2CC,U+2CE-2D7,U+2DD-2FF,U+304,U+308,U+329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}@font-face{font-family:Unbounded;font-style:normal;font-weight:600;font-display:swap;src:url(../media/b59689b1142d37ce-s.p.1bk8_xp319hr4.woff2)format("woff2");unicode-range:U+??,U+131,U+152-153,U+2BB-2BC,U+2C6,U+2DA,U+2DC,U+304,U+308,U+329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}@font-face{font-family:Unbounded;font-style:normal;font-weight:800;font-display:swap;src:url(../media/d0d9446e69c4847e-s.3h31fjnwrfycc.woff2)format("woff2");unicode-range:U+460-52F,U+1C80-1C8A,U+20B4,U+2DE0-2DFF,U+A640-A69F,U+FE2E-FE2F}@font-face{font-family:Unbounded;font-style:normal;font-weight:800;font-display:swap;src:url(../media/4e1c87b7aa9e2f2f-s.p.3o02-8iknf6dl.woff2)format("woff2");unicode-range:U+301,U+400-45F,U+490-491,U+4B0-4B1,U+2116}@font-face{font-family:Unbounded;font-style:normal;font-weight:800;font-display:swap;src:url(../media/3fd967fc5374d70a-s.42u1-lj4buy61.woff2)format("woff2");unicode-range:U+102-103,U+110-111,U+128-129,U+168-169,U+1A0-1A1,U+1AF-1B0,U+300-301,U+303-304,U+308-309,U+323,U+329,U+1EA0-1EF9,U+20AB}@font-face{font-family:Unbounded;font-style:normal;font-weight:800;font-display:swap;src:url(../media/dd14639a62c56cb2-s.0kda-l-rfpyyq.woff2)format("woff2");unicode-range:U+100-2BA,U+2BD-2C5,U+2C7-2CC,U+2CE-2D7,U+2DD-2FF,U+304,U+308,U+329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}@font-face{font-family:Unbounded;font-style:normal;font-weight:800;font-display:swap;src:url(../media/b59689b1142d37ce-s.p.1bk8_xp319hr4.woff2)format("woff2");unicode-range:U+??,U+131,U+152-153,U+2BB-2BC,U+2C6,U+2DA,U+2DC,U+304,U+308,U+329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}@font-face{font-family:Unbounded Fallback;src:local(Arial);ascent-override:73.93%;descent-override:18.2%;line-gap-override:0.0%;size-adjust:134.59%}.unbounded_32e6f207-module__4eGq2G__className{font-family:Unbounded,Unbounded Fallback;font-style:normal}.unbounded_32e6f207-module__4eGq2G__variable{--font-unbounded:"Unbounded", "Unbounded Fallback"}
@font-face{font-family:Golos Text;font-style:normal;font-weight:400;font-display:swap;src:url(../media/75f2fdf2e0b68dfe-s.0fq57cj8krwmf.woff2)format("woff2");unicode-range:U+460-52F,U+1C80-1C8A,U+20B4,U+2DE0-2DFF,U+A640-A69F,U+FE2E-FE2F}@font-face{font-family:Golos Text;font-style:normal;font-weight:400;font-display:swap;src:url(../media/cfdfbee4d6cf0a93-s.p.1jwcpm6w583_v.woff2)format("woff2");unicode-range:U+301,U+400-45F,U+490-491,U+4B0-4B1,U+2116}@font-face{font-family:Golos Text;font-style:normal;font-weight:400;font-display:swap;src:url(../media/634e9805ffc8f226-s.2ocajiqvilzpk.woff2)format("woff2");unicode-range:U+100-2BA,U+2BD-2C5,U+2C7-2CC,U+2CE-2D7,U+2DD-2FF,U+304,U+308,U+329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}@font-face{font-family:Golos Text;font-style:normal;font-weight:400;font-display:swap;src:url(../media/b4a06a523f527a0e-s.p.3psl0_mnhzy2y.woff2)format("woff2");unicode-range:U+??,U+131,U+152-153,U+2BB-2BC,U+2C6,U+2DA,U+2DC,U+304,U+308,U+329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}@font-face{font-family:Golos Text;font-style:normal;font-weight:500;font-display:swap;src:url(../media/75f2fdf2e0b68dfe-s.0fq57cj8krwmf.woff2)format("woff2");unicode-range:U+460-52F,U+1C80-1C8A,U+20B4,U+2DE0-2DFF,U+A640-A69F,U+FE2E-FE2F}@font-face{font-family:Golos Text;font-style:normal;font-weight:500;font-display:swap;src:url(../media/cfdfbee4d6cf0a93-s.p.1jwcpm6w583_v.woff2)format("woff2");unicode-range:U+301,U+400-45F,U+490-491,U+4B0-4B1,U+2116}@font-face{font-family:Golos Text;font-style:normal;font-weight:500;font-display:swap;src:url(../media/634e9805ffc8f226-s.2ocajiqvilzpk.woff2)format("woff2");unicode-range:U+100-2BA,U+2BD-2C5,U+2C7-2CC,U+2CE-2D7,U+2DD-2FF,U+304,U+308,U+329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}@font-face{font-family:Golos Text;font-style:normal;font-weight:500;font-display:swap;src:url(../media/b4a06a523f527a0e-s.p.3psl0_mnhzy2y.woff2)format("woff2");unicode-range:U+??,U+131,U+152-153,U+2BB-2BC,U+2C6,U+2DA,U+2DC,U+304,U+308,U+329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}@font-face{font-family:Golos Text;font-style:normal;font-weight:600;font-display:swap;src:url(../media/75f2fdf2e0b68dfe-s.0fq57cj8krwmf.woff2)format("woff2");unicode-range:U+460-52F,U+1C80-1C8A,U+20B4,U+2DE0-2DFF,U+A640-A69F,U+FE2E-FE2F}@font-face{font-family:Golos Text;font-style:normal;font-weight:600;font-display:swap;src:url(../media/cfdfbee4d6cf0a93-s.p.1jwcpm6w583_v.woff2)format("woff2");unicode-range:U+301,U+400-45F,U+490-491,U+4B0-4B1,U+2116}@font-face{font-family:Golos Text;font-style:normal;font-weight:600;font-display:swap;src:url(../media/634e9805ffc8f226-s.2ocajiqvilzpk.woff2)format("woff2");unicode-range:U+100-2BA,U+2BD-2C5,U+2C7-2CC,U+2CE-2D7,U+2DD-2FF,U+304,U+308,U+329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}@font-face{font-family:Golos Text;font-style:normal;font-weight:600;font-display:swap;src:url(../media/b4a06a523f527a0e-s.p.3psl0_mnhzy2y.woff2)format("woff2");unicode-range:U+??,U+131,U+152-153,U+2BB-2BC,U+2C6,U+2DA,U+2DC,U+304,U+308,U+329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}@font-face{font-family:Golos Text;font-style:normal;font-weight:700;font-display:swap;src:url(../media/75f2fdf2e0b68dfe-s.0fq57cj8krwmf.woff2)format("woff2");unicode-range:U+460-52F,U+1C80-1C8A,U+20B4,U+2DE0-2DFF,U+A640-A69F,U+FE2E-FE2F}@font-face{font-family:Golos Text;font-style:normal;font-weight:700;font-display:swap;src:url(../media/cfdfbee4d6cf0a93-s.p.1jwcpm6w583_v.woff2)format("woff2");unicode-range:U+301,U+400-45F,U+490-491,U+4B0-4B1,U+2116}@font-face{font-family:Golos Text;font-style:normal;font-weight:700;font-display:swap;src:url(../media/634e9805ffc8f226-s.2ocajiqvilzpk.woff2)format("woff2");unicode-range:U+100-2BA,U+2BD-2C5,U+2C7-2CC,U+2CE-2D7,U+2DD-2FF,U+304,U+308,U+329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}@font-face{font-family:Golos Text;font-style:normal;font-weight:700;font-display:swap;src:url(../media/b4a06a523f527a0e-s.p.3psl0_mnhzy2y.woff2)format("woff2");unicode-range:U+??,U+131,U+152-153,U+2BB-2BC,U+2C6,U+2DA,U+2DC,U+304,U+308,U+329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}@font-face{font-family:Golos Text Fallback;src:local(Arial);ascent-override:90.27%;descent-override:20.26%;line-gap-override:0.0%;size-adjust:108.57%}.golos_text_a7b5c50-module__bm5nPW__className{font-family:Golos Text,Golos Text Fallback;font-style:normal}.golos_text_a7b5c50-module__bm5nPW__variable{--font-golos:"Golos Text", "Golos Text Fallback"}
@font-face{font-display:block;font-family:KaTeX_AMS;font-style:normal;font-weight:400;src:url(../media/KaTeX_AMS-Regular.25ieegmnh38ts.woff2)format("woff2"),url(../media/KaTeX_AMS-Regular.10y3kupq4t663.woff)format("woff"),url(../media/KaTeX_AMS-Regular.418dr7cz3fo2x.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Caligraphic;font-style:normal;font-weight:700;src:url(../media/KaTeX_Caligraphic-Bold.06b-ya9t43ioz.woff2)format("woff2"),url(../media/KaTeX_Caligraphic-Bold.2vmk2hva4ctha.woff)format("woff"),url(../media/KaTeX_Caligraphic-Bold.40ltxhe834pns.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Caligraphic;font-style:normal;font-weight:400;src:url(../media/KaTeX_Caligraphic-Regular.2eph4dlhid_m9.woff2)format("woff2"),url(../media/KaTeX_Caligraphic-Regular.3gxeetazf831f.woff)format("woff"),url(../media/KaTeX_Caligraphic-Regular.07-7u27-nhn_r.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Fraktur;font-style:normal;font-weight:700;src:url(../media/KaTeX_Fraktur-Bold.2sasz-d-jtw8y.woff2)format("woff2"),url(../media/KaTeX_Fraktur-Bold.1alcy76__wdj2.woff)format("woff"),url(../media/KaTeX_Fraktur-Bold.19yqa_tc9d_gx.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Fraktur;font-style:normal;font-weight:400;src:url(../media/KaTeX_Fraktur-Regular.2d10y4xmjvzlf.woff2)format("woff2"),url(../media/KaTeX_Fraktur-Regular.110oo81prr9n5.woff)format("woff"),url(../media/KaTeX_Fraktur-Regular.2qhy34r6a05dn.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:normal;font-weight:700;src:url(../media/KaTeX_Main-Bold.3-rowy8o6_4ky.woff2)format("woff2"),url(../media/KaTeX_Main-Bold.0v1esh257kqpe.woff)format("woff"),url(../media/KaTeX_Main-Bold.0us_n0tnxlxu7.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:italic;font-weight:700;src:url(../media/KaTeX_Main-BoldItalic.14r2naom8mrec.woff2)format("woff2"),url(../media/KaTeX_Main-BoldItalic.13355ck5zr48q.woff)format("woff"),url(../media/KaTeX_Main-BoldItalic.3x_u9cepaced0.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:italic;font-weight:400;src:url(../media/KaTeX_Main-Italic.0lig0v9j0700p.woff2)format("woff2"),url(../media/KaTeX_Main-Italic.0afv392dj4w59.woff)format("woff"),url(../media/KaTeX_Main-Italic.2hkw3230mfwcv.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:normal;font-weight:400;src:url(../media/KaTeX_Main-Regular.1ryvsdzh2w1_e.woff2)format("woff2"),url(../media/KaTeX_Main-Regular.15u8r3b2y7fv4.woff)format("woff"),url(../media/KaTeX_Main-Regular.0symfa7dqj6jd.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Math;font-style:italic;font-weight:700;src:url(../media/KaTeX_Math-BoldItalic.1oopuu636h4il.woff2)format("woff2"),url(../media/KaTeX_Math-BoldItalic.12pl58orkw9rg.woff)format("woff"),url(../media/KaTeX_Math-BoldItalic.0y5w36a5aq__2.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Math;font-style:italic;font-weight:400;src:url(../media/KaTeX_Math-Italic.32405s1aq8vas.woff2)format("woff2"),url(../media/KaTeX_Math-Italic.0w0b1ugh62cfr.woff)format("woff"),url(../media/KaTeX_Math-Italic.2vkekfblmz5nb.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_SansSerif;font-style:normal;font-weight:700;src:url(../media/KaTeX_SansSerif-Bold.0h3wi2z_eouyg.woff2)format("woff2"),url(../media/KaTeX_SansSerif-Bold.1ovw5p-yjp56g.woff)format("woff"),url(../media/KaTeX_SansSerif-Bold.2d03q85pwxpti.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_SansSerif;font-style:italic;font-weight:400;src:url(../media/KaTeX_SansSerif-Italic.0wkjc4dm2kcit.woff2)format("woff2"),url(../media/KaTeX_SansSerif-Italic.1qavw__2zz8gk.woff)format("woff"),url(../media/KaTeX_SansSerif-Italic.3i-q087b23-m8.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_SansSerif;font-style:normal;font-weight:400;src:url(../media/KaTeX_SansSerif-Regular.2peiewu59z3d-.woff2)format("woff2"),url(../media/KaTeX_SansSerif-Regular.1i4afx8nk8n4r.woff)format("woff"),url(../media/KaTeX_SansSerif-Regular.31pbu25feko_c.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Script;font-style:normal;font-weight:400;src:url(../media/KaTeX_Script-Regular.11h14300o9pd0.woff2)format("woff2"),url(../media/KaTeX_Script-Regular.3110jb9c-bxna.woff)format("woff"),url(../media/KaTeX_Script-Regular.28p_x7iz71ofe.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size1;font-style:normal;font-weight:400;src:url(../media/KaTeX_Size1-Regular.03lhvx36ekcou.woff2)format("woff2"),url(../media/KaTeX_Size1-Regular.1slf4bh0hc6vm.woff)format("woff"),url(../media/KaTeX_Size1-Regular.1y57-ck23ey8c.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size2;font-style:normal;font-weight:400;src:url(../media/KaTeX_Size2-Regular.14s5gg-puz6h-.woff2)format("woff2"),url(../media/KaTeX_Size2-Regular.0-kwyvx03omo8.woff)format("woff"),url(../media/KaTeX_Size2-Regular.2u0s-b07k2o9m.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size3;font-style:normal;font-weight:400;src:url(../media/KaTeX_Size3-Regular.1n1rgzz84z8r9.woff2)format("woff2"),url(../media/KaTeX_Size3-Regular.04o9a_02gu_e8.woff)format("woff"),url(../media/KaTeX_Size3-Regular.1pkn-dge4q0fv.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size4;font-style:normal;font-weight:400;src:url(../media/KaTeX_Size4-Regular.2sgotkdv3dcyv.woff2)format("woff2"),url(../media/KaTeX_Size4-Regular.3p2r1l7xmebxv.woff)format("woff"),url(../media/KaTeX_Size4-Regular.2uelkfk2yna5e.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Typewriter;font-style:normal;font-weight:400;src:url(../media/KaTeX_Typewriter-Regular.11gr2d2wuwz77.woff2)format("woff2"),url(../media/KaTeX_Typewriter-Regular.12f8myjij3617.woff)format("woff"),url(../media/KaTeX_Typewriter-Regular.3nee9kjfy6nm8.ttf)format("truetype")}.katex{text-indent:0;text-rendering:auto;font:1.21em/1.2 KaTeX_Main,Times New Roman,serif;position:relative}.katex *{border-color:currentColor;-ms-high-contrast-adjust:none!important}.katex .katex-version:after{content:"0.18.9"}.katex .katex-mathml{clip-path:inset(50%);border:0;width:1px;height:1px;padding:0;position:absolute;overflow:hidden}.katex .katex-html>.katex-newline{display:block}.katex .katex-base{white-space:nowrap;width:min-content;position:relative}.katex .katex-base,.katex .katex-strut{display:inline-block}.katex .textbf{font-weight:700}.katex .textit{font-style:italic}.katex .textrm{font-family:KaTeX_Main}.katex .textsf{font-family:KaTeX_SansSerif}.katex .texttt{font-family:KaTeX_Typewriter}.katex .mathnormal{font-family:KaTeX_Math;font-style:italic}.katex .mathit{font-family:KaTeX_Main;font-style:italic}.katex .mathrm{font-style:normal}.katex .mathbf{font-family:KaTeX_Main;font-weight:700}.katex .boldsymbol{font-family:KaTeX_Math;font-style:italic;font-weight:700}.katex .amsrm,.katex .mathbb,.katex .textbb{font-family:KaTeX_AMS}.katex .mathcal{font-family:KaTeX_Caligraphic}.katex .mathfrak,.katex .textfrak{font-family:KaTeX_Fraktur}.katex .mathboldfrak,.katex .textboldfrak{font-family:KaTeX_Fraktur;font-weight:700}.katex .mathtt{font-family:KaTeX_Typewriter}.katex .mathscr,.katex .textscr{font-family:KaTeX_Script}.katex .mathsf,.katex .textsf{font-family:KaTeX_SansSerif}.katex .mathboldsf,.katex .textboldsf{font-family:KaTeX_SansSerif;font-weight:700}.katex .mathitsf,.katex .mathsfit,.katex .textitsf{font-family:KaTeX_SansSerif;font-style:italic}.katex .mainrm{font-family:KaTeX_Main;font-style:normal}.katex .vlist-t{border-collapse:collapse;table-layout:fixed;display:inline-table}.katex .vlist-r{display:table-row}.katex .vlist{vertical-align:bottom;display:table-cell;position:relative}.katex .vlist>span{height:0;display:block;position:relative}.katex .vlist>span>span{display:inline-block}.katex .vlist>span>.pstrut{width:0;overflow:hidden}.katex .vlist-t2{margin-right:-2px}.katex .vlist-s{vertical-align:bottom;width:2px;min-width:2px;font-size:1px;display:table-cell}.katex .katex-vbox{flex-direction:column;align-items:baseline;display:inline-flex}.katex .katex-thinbox{flex-direction:row;width:0;max-width:0;display:inline-flex}.katex .msupsub{text-align:left}.katex .mfrac>span>span{text-align:center}.katex .mfrac .frac-line{border-bottom-style:solid;width:100%;display:inline-block}.katex .katex-hdashline,.katex .katex-hline,.katex .katex-overline .overline-line,.katex .katex-rule,.katex .katex-underline .underline-line,.katex .mfrac .frac-line{min-height:1px}.katex .mspace{display:inline-block}.katex .katex-smash{line-height:0;display:inline}.katex .clap,.katex .llap,.katex .rlap{width:0;position:relative}.katex .clap>.katex-inner,.katex .llap>.katex-inner,.katex .rlap>.katex-inner{position:absolute}.katex .clap>.katex-fix,.katex .llap>.katex-fix,.katex .rlap>.katex-fix{display:inline-block}.katex .llap>.katex-inner{right:0}.katex .clap>.katex-inner,.katex .rlap>.katex-inner{left:0}.katex .clap>.katex-inner>span{margin-left:-50%;margin-right:50%}.katex .katex-rule{border:0 solid;display:inline-block;position:relative}.katex .katex-hline,.katex .katex-overline .overline-line,.katex .katex-underline .underline-line{border-bottom-style:solid;width:100%;display:inline-block}.katex .katex-hdashline{border-bottom-style:dashed;width:100%;display:inline-block}.katex .sqrt>.katex-root{margin-left:.277778em;margin-right:-.555556em}.katex .fontsize-ensurer.reset-size1.size1,.katex .katex-sizing.reset-size1.size1{font-size:1em}.katex .fontsize-ensurer.reset-size1.size2,.katex .katex-sizing.reset-size1.size2{font-size:1.2em}.katex .fontsize-ensurer.reset-size1.size3,.katex .katex-sizing.reset-size1.size3{font-size:1.4em}.katex .fontsize-ensurer.reset-size1.size4,.katex .katex-sizing.reset-size1.size4{font-size:1.6em}.katex .fontsize-ensurer.reset-size1.size5,.katex .katex-sizing.reset-size1.size5{font-size:1.8em}.katex .fontsize-ensurer.reset-size1.size6,.katex .katex-sizing.reset-size1.size6{font-size:2em}.katex .fontsize-ensurer.reset-size1.size7,.katex .katex-sizing.reset-size1.size7{font-size:2.4em}.katex .fontsize-ensurer.reset-size1.size8,.katex .katex-sizing.reset-size1.size8{font-size:2.88em}.katex .fontsize-ensurer.reset-size1.size9,.katex .katex-sizing.reset-size1.size9{font-size:3.456em}.katex .fontsize-ensurer.reset-size1.size10,.katex .katex-sizing.reset-size1.size10{font-size:4.148em}.katex .fontsize-ensurer.reset-size1.size11,.katex .katex-sizing.reset-size1.size11{font-size:4.976em}.katex .fontsize-ensurer.reset-size2.size1,.katex .katex-sizing.reset-size2.size1{font-size:.833333em}.katex .fontsize-ensurer.reset-size2.size2,.katex .katex-sizing.reset-size2.size2{font-size:1em}.katex .fontsize-ensurer.reset-size2.size3,.katex .katex-sizing.reset-size2.size3{font-size:1.16667em}.katex .fontsize-ensurer.reset-size2.size4,.katex .katex-sizing.reset-size2.size4{font-size:1.33333em}.katex .fontsize-ensurer.reset-size2.size5,.katex .katex-sizing.reset-size2.size5{font-size:1.5em}.katex .fontsize-ensurer.reset-size2.size6,.katex .katex-sizing.reset-size2.size6{font-size:1.66667em}.katex .fontsize-ensurer.reset-size2.size7,.katex .katex-sizing.reset-size2.size7{font-size:2em}.katex .fontsize-ensurer.reset-size2.size8,.katex .katex-sizing.reset-size2.size8{font-size:2.4em}.katex .fontsize-ensurer.reset-size2.size9,.katex .katex-sizing.reset-size2.size9{font-size:2.88em}.katex .fontsize-ensurer.reset-size2.size10,.katex .katex-sizing.reset-size2.size10{font-size:3.45667em}.katex .fontsize-ensurer.reset-size2.size11,.katex .katex-sizing.reset-size2.size11{font-size:4.14667em}.katex .fontsize-ensurer.reset-size3.size1,.katex .katex-sizing.reset-size3.size1{font-size:.714286em}.katex .fontsize-ensurer.reset-size3.size2,.katex .katex-sizing.reset-size3.size2{font-size:.857143em}.katex .fontsize-ensurer.reset-size3.size3,.katex .katex-sizing.reset-size3.size3{font-size:1em}.katex .fontsize-ensurer.reset-size3.size4,.katex .katex-sizing.reset-size3.size4{font-size:1.14286em}.katex .fontsize-ensurer.reset-size3.size5,.katex .katex-sizing.reset-size3.size5{font-size:1.28571em}.katex .fontsize-ensurer.reset-size3.size6,.katex .katex-sizing.reset-size3.size6{font-size:1.42857em}.katex .fontsize-ensurer.reset-size3.size7,.katex .katex-sizing.reset-size3.size7{font-size:1.71429em}.katex .fontsize-ensurer.reset-size3.size8,.katex .katex-sizing.reset-size3.size8{font-size:2.05714em}.katex .fontsize-ensurer.reset-size3.size9,.katex .katex-sizing.reset-size3.size9{font-size:2.46857em}.katex .fontsize-ensurer.reset-size3.size10,.katex .katex-sizing.reset-size3.size10{font-size:2.96286em}.katex .fontsize-ensurer.reset-size3.size11,.katex .katex-sizing.reset-size3.size11{font-size:3.55429em}.katex .fontsize-ensurer.reset-size4.size1,.katex .katex-sizing.reset-size4.size1{font-size:.625em}.katex .fontsize-ensurer.reset-size4.size2,.katex .katex-sizing.reset-size4.size2{font-size:.75em}.katex .fontsize-ensurer.reset-size4.size3,.katex .katex-sizing.reset-size4.size3{font-size:.875em}.katex .fontsize-ensurer.reset-size4.size4,.katex .katex-sizing.reset-size4.size4{font-size:1em}.katex .fontsize-ensurer.reset-size4.size5,.katex .katex-sizing.reset-size4.size5{font-size:1.125em}.katex .fontsize-ensurer.reset-size4.size6,.katex .katex-sizing.reset-size4.size6{font-size:1.25em}.katex .fontsize-ensurer.reset-size4.size7,.katex .katex-sizing.reset-size4.size7{font-size:1.5em}.katex .fontsize-ensurer.reset-size4.size8,.katex .katex-sizing.reset-size4.size8{font-size:1.8em}.katex .fontsize-ensurer.reset-size4.size9,.katex .katex-sizing.reset-size4.size9{font-size:2.16em}.katex .fontsize-ensurer.reset-size4.size10,.katex .katex-sizing.reset-size4.size10{font-size:2.5925em}.katex .fontsize-ensurer.reset-size4.size11,.katex .katex-sizing.reset-size4.size11{font-size:3.11em}.katex .fontsize-ensurer.reset-size5.size1,.katex .katex-sizing.reset-size5.size1{font-size:.555556em}.katex .fontsize-ensurer.reset-size5.size2,.katex .katex-sizing.reset-size5.size2{font-size:.666667em}.katex .fontsize-ensurer.reset-size5.size3,.katex .katex-sizing.reset-size5.size3{font-size:.777778em}.katex .fontsize-ensurer.reset-size5.size4,.katex .katex-sizing.reset-size5.size4{font-size:.888889em}.katex .fontsize-ensurer.reset-size5.size5,.katex .katex-sizing.reset-size5.size5{font-size:1em}.katex .fontsize-ensurer.reset-size5.size6,.katex .katex-sizing.reset-size5.size6{font-size:1.11111em}.katex .fontsize-ensurer.reset-size5.size7,.katex .katex-sizing.reset-size5.size7{font-size:1.33333em}.katex .fontsize-ensurer.reset-size5.size8,.katex .katex-sizing.reset-size5.size8{font-size:1.6em}.katex .fontsize-ensurer.reset-size5.size9,.katex .katex-sizing.reset-size5.size9{font-size:1.92em}.katex .fontsize-ensurer.reset-size5.size10,.katex .katex-sizing.reset-size5.size10{font-size:2.30444em}.katex .fontsize-ensurer.reset-size5.size11,.katex .katex-sizing.reset-size5.size11{font-size:2.76444em}.katex .fontsize-ensurer.reset-size6.size1,.katex .katex-sizing.reset-size6.size1{font-size:.5em}.katex .fontsize-ensurer.reset-size6.size2,.katex .katex-sizing.reset-size6.size2{font-size:.6em}.katex .fontsize-ensurer.reset-size6.size3,.katex .katex-sizing.reset-size6.size3{font-size:.7em}.katex .fontsize-ensurer.reset-size6.size4,.katex .katex-sizing.reset-size6.size4{font-size:.8em}.katex .fontsize-ensurer.reset-size6.size5,.katex .katex-sizing.reset-size6.size5{font-size:.9em}.katex .fontsize-ensurer.reset-size6.size6,.katex .katex-sizing.reset-size6.size6{font-size:1em}.katex .fontsize-ensurer.reset-size6.size7,.katex .katex-sizing.reset-size6.size7{font-size:1.2em}.katex .fontsize-ensurer.reset-size6.size8,.katex .katex-sizing.reset-size6.size8{font-size:1.44em}.katex .fontsize-ensurer.reset-size6.size9,.katex .katex-sizing.reset-size6.size9{font-size:1.728em}.katex .fontsize-ensurer.reset-size6.size10,.katex .katex-sizing.reset-size6.size10{font-size:2.074em}.katex .fontsize-ensurer.reset-size6.size11,.katex .katex-sizing.reset-size6.size11{font-size:2.488em}.katex .fontsize-ensurer.reset-size7.size1,.katex .katex-sizing.reset-size7.size1{font-size:.416667em}.katex .fontsize-ensurer.reset-size7.size2,.katex .katex-sizing.reset-size7.size2{font-size:.5em}.katex .fontsize-ensurer.reset-size7.size3,.katex .katex-sizing.reset-size7.size3{font-size:.583333em}.katex .fontsize-ensurer.reset-size7.size4,.katex .katex-sizing.reset-size7.size4{font-size:.666667em}.katex .fontsize-ensurer.reset-size7.size5,.katex .katex-sizing.reset-size7.size5{font-size:.75em}.katex .fontsize-ensurer.reset-size7.size6,.katex .katex-sizing.reset-size7.size6{font-size:.833333em}.katex .fontsize-ensurer.reset-size7.size7,.katex .katex-sizing.reset-size7.size7{font-size:1em}.katex .fontsize-ensurer.reset-size7.size8,.katex .katex-sizing.reset-size7.size8{font-size:1.2em}.katex .fontsize-ensurer.reset-size7.size9,.katex .katex-sizing.reset-size7.size9{font-size:1.44em}.katex .fontsize-ensurer.reset-size7.size10,.katex .katex-sizing.reset-size7.size10{font-size:1.72833em}.katex .fontsize-ensurer.reset-size7.size11,.katex .katex-sizing.reset-size7.size11{font-size:2.07333em}.katex .fontsize-ensurer.reset-size8.size1,.katex .katex-sizing.reset-size8.size1{font-size:.347222em}.katex .fontsize-ensurer.reset-size8.size2,.katex .katex-sizing.reset-size8.size2{font-size:.416667em}.katex .fontsize-ensurer.reset-size8.size3,.katex .katex-sizing.reset-size8.size3{font-size:.486111em}.katex .fontsize-ensurer.reset-size8.size4,.katex .katex-sizing.reset-size8.size4{font-size:.555556em}.katex .fontsize-ensurer.reset-size8.size5,.katex .katex-sizing.reset-size8.size5{font-size:.625em}.katex .fontsize-ensurer.reset-size8.size6,.katex .katex-sizing.reset-size8.size6{font-size:.694444em}.katex .fontsize-ensurer.reset-size8.size7,.katex .katex-sizing.reset-size8.size7{font-size:.833333em}.katex .fontsize-ensurer.reset-size8.size8,.katex .katex-sizing.reset-size8.size8{font-size:1em}.katex .fontsize-ensurer.reset-size8.size9,.katex .katex-sizing.reset-size8.size9{font-size:1.2em}.katex .fontsize-ensurer.reset-size8.size10,.katex .katex-sizing.reset-size8.size10{font-size:1.44028em}.katex .fontsize-ensurer.reset-size8.size11,.katex .katex-sizing.reset-size8.size11{font-size:1.72778em}.katex .fontsize-ensurer.reset-size9.size1,.katex .katex-sizing.reset-size9.size1{font-size:.289352em}.katex .fontsize-ensurer.reset-size9.size2,.katex .katex-sizing.reset-size9.size2{font-size:.347222em}.katex .fontsize-ensurer.reset-size9.size3,.katex .katex-sizing.reset-size9.size3{font-size:.405093em}.katex .fontsize-ensurer.reset-size9.size4,.katex .katex-sizing.reset-size9.size4{font-size:.462963em}.katex .fontsize-ensurer.reset-size9.size5,.katex .katex-sizing.reset-size9.size5{font-size:.520833em}.katex .fontsize-ensurer.reset-size9.size6,.katex .katex-sizing.reset-size9.size6{font-size:.578704em}.katex .fontsize-ensurer.reset-size9.size7,.katex .katex-sizing.reset-size9.size7{font-size:.694444em}.katex .fontsize-ensurer.reset-size9.size8,.katex .katex-sizing.reset-size9.size8{font-size:.833333em}.katex .fontsize-ensurer.reset-size9.size9,.katex .katex-sizing.reset-size9.size9{font-size:1em}.katex .fontsize-ensurer.reset-size9.size10,.katex .katex-sizing.reset-size9.size10{font-size:1.20023em}.katex .fontsize-ensurer.reset-size9.size11,.katex .katex-sizing.reset-size9.size11{font-size:1.43981em}.katex .fontsize-ensurer.reset-size10.size1,.katex .katex-sizing.reset-size10.size1{font-size:.24108em}.katex .fontsize-ensurer.reset-size10.size2,.katex .katex-sizing.reset-size10.size2{font-size:.289296em}.katex .fontsize-ensurer.reset-size10.size3,.katex .katex-sizing.reset-size10.size3{font-size:.337512em}.katex .fontsize-ensurer.reset-size10.size4,.katex .katex-sizing.reset-size10.size4{font-size:.385728em}.katex .fontsize-ensurer.reset-size10.size5,.katex .katex-sizing.reset-size10.size5{font-size:.433944em}.katex .fontsize-ensurer.reset-size10.size6,.katex .katex-sizing.reset-size10.size6{font-size:.48216em}.katex .fontsize-ensurer.reset-size10.size7,.katex .katex-sizing.reset-size10.size7{font-size:.578592em}.katex .fontsize-ensurer.reset-size10.size8,.katex .katex-sizing.reset-size10.size8{font-size:.694311em}.katex .fontsize-ensurer.reset-size10.size9,.katex .katex-sizing.reset-size10.size9{font-size:.833173em}.katex .fontsize-ensurer.reset-size10.size10,.katex .katex-sizing.reset-size10.size10{font-size:1em}.katex .fontsize-ensurer.reset-size10.size11,.katex .katex-sizing.reset-size10.size11{font-size:1.19961em}.katex .fontsize-ensurer.reset-size11.size1,.katex .katex-sizing.reset-size11.size1{font-size:.200965em}.katex .fontsize-ensurer.reset-size11.size2,.katex .katex-sizing.reset-size11.size2{font-size:.241158em}.katex .fontsize-ensurer.reset-size11.size3,.katex .katex-sizing.reset-size11.size3{font-size:.281351em}.katex .fontsize-ensurer.reset-size11.size4,.katex .katex-sizing.reset-size11.size4{font-size:.321543em}.katex .fontsize-ensurer.reset-size11.size5,.katex .katex-sizing.reset-size11.size5{font-size:.361736em}.katex .fontsize-ensurer.reset-size11.size6,.katex .katex-sizing.reset-size11.size6{font-size:.401929em}.katex .fontsize-ensurer.reset-size11.size7,.katex .katex-sizing.reset-size11.size7{font-size:.482315em}.katex .fontsize-ensurer.reset-size11.size8,.katex .katex-sizing.reset-size11.size8{font-size:.578778em}.katex .fontsize-ensurer.reset-size11.size9,.katex .katex-sizing.reset-size11.size9{font-size:.694534em}.katex .fontsize-ensurer.reset-size11.size10,.katex .katex-sizing.reset-size11.size10{font-size:.833601em}.katex .fontsize-ensurer.reset-size11.size11,.katex .katex-sizing.reset-size11.size11{font-size:1em}.katex .delimsizing.size1{font-family:KaTeX_Size1}.katex .delimsizing.size2{font-family:KaTeX_Size2}.katex .delimsizing.size3{font-family:KaTeX_Size3}.katex .delimsizing.size4{font-family:KaTeX_Size4}.katex .delimsizing.mult .delim-size1>span{font-family:KaTeX_Size1}.katex .delimsizing.mult .delim-size4>span{font-family:KaTeX_Size4}.katex .nulldelimiter{width:.12em;display:inline-block}.katex .delimcenter,.katex .op-symbol{position:relative}.katex .op-symbol.small-op{font-family:KaTeX_Size1}.katex .op-symbol.large-op{font-family:KaTeX_Size2}.katex .katex-accent>.vlist-t,.katex .op-limits>.vlist-t{text-align:center}.katex .katex-accent .accent-body{position:relative}.katex .katex-accent .accent-body:not(.accent-full){width:0}.katex .katex-overlay{display:block}.katex .mtable .vertical-separator{min-width:1px;display:inline-block}.katex .mtable .arraycolsep{display:inline-block}.katex .mtable .col-align-c>.vlist-t{text-align:center}.katex .mtable .col-align-l>.vlist-t{text-align:left}.katex .mtable .col-align-r>.vlist-t{text-align:right}.katex .svg-align{text-align:left}.katex svg{fill:currentColor;stroke:currentColor;height:inherit;width:100%;display:block;position:absolute}.katex svg path{stroke:none}.katex svg{fill-rule:nonzero;fill-opacity:1;stroke-width:1px;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1}.katex img{border-style:none;min-width:0;max-width:none;min-height:0;max-height:none}.katex .katex-stretchy{width:100%;display:block;position:relative;overflow:hidden}.katex .katex-stretchy:after,.katex .katex-stretchy:before{content:""}.katex .hide-tail{width:100%;position:relative;overflow:hidden}.katex .halfarrow-left{width:50.2%;position:absolute;left:0;overflow:hidden}.katex .halfarrow-right{width:50.2%;position:absolute;right:0;overflow:hidden}.katex .brace-left{width:25.1%;position:absolute;left:0;overflow:hidden}.katex .brace-center{width:50%;position:absolute;left:25%;overflow:hidden}.katex .brace-right{width:25.1%;position:absolute;right:0;overflow:hidden}.katex .x-arrow-pad{padding:0 .5em}.katex .cd-arrow-pad{padding:0 .55556em 0 .27778em}.katex .mover,.katex .munder,.katex .x-arrow{text-align:center}.katex .boxpad{padding:0 .3em}.katex .fbox,.katex .fcolorbox{box-sizing:border-box;border:.04em solid}.katex .cancel-pad{padding:0 .2em}.katex .cancel-lap{margin-left:-.2em;margin-right:-.2em}.katex .katex-sout{border-bottom-style:solid;border-bottom-width:.08em}.katex .angl{box-sizing:border-box;border-top:.049em solid;border-right:.049em solid;margin-right:.03889em}.katex .anglpad{padding:0 .03889em}.katex .reflectbox{display:inline-block;transform:scaleX(-1)}.katex .eqn-num:before{content:"(" counter(katexEqnNo) ")";counter-increment:katexEqnNo}.katex .mml-eqn-num:before{content:"(" counter(mmlEqnNo) ")";counter-increment:mmlEqnNo}.katex .mtr-glue{width:50%}.katex .cd-vert-arrow{display:inline-block;position:relative}.katex .cd-label-left{text-align:left;display:inline-block;position:absolute;right:calc(50% + .3em)}.katex .cd-label-right{text-align:right;display:inline-block;position:absolute;left:calc(50% + .3em)}.katex-display{text-align:center;margin:1em 0;display:block}.katex-display>.katex{text-align:center;white-space:nowrap;display:block}.katex-display>.katex>.katex-html{display:block;position:relative}.katex-display>.katex>.katex-html>.katex-tag{position:absolute;right:0}.katex-display.leqno>.katex>.katex-html>.katex-tag{left:0;right:auto}.katex-display.fleqn>.katex{text-align:left;padding-left:2em}body{counter-reset:katexEqnNo mmlEqnNo}
:root{--bg:#f4f6fb;--surface:#fff;--surface-2:#edf0f8;--ink:#141a33;--muted:#5a6280;--line:#dfe4f0;--blue:#2457d6;--blue-ink:#173c9e;--blue-soft:#e6ecfc;--on-blue:#fff;--sun:#ffd43b;--sun-hover:#ffc800;--sun-ink:#3a2a00;--sun-soft:#fff4cc;--ok:#17804f;--ok-soft:#e3f4ea;--bad:#b4372b;--sheet:#fff;--sheet-ink:#16161a;--sheet-soft:#f4f5f9;--sheet-note:#fff8e6;--shadow:0 1px 2px #141a330f,0 8px 24px #141a330f;--display:var(--font-unbounded),var(--font-golos),system-ui,sans-serif;--text:var(--font-golos),system-ui,-apple-system,"Segoe UI",sans-serif}html[data-scheme=dark]{--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark;--bg:#0d1120;--surface:#151a2e;--surface-2:#1d2442;--ink:#e8ebf6;--muted:#98a1c0;--line:#28304f;--blue:#6f94ff;--blue-ink:#afc3ff;--blue-soft:#1b2756;--on-blue:#0d1120;--sun:#ffd43b;--sun-hover:#ffe070;--sun-ink:#2b1f00;--sun-soft:#2b2612;--ok:#5fd39a;--ok-soft:#173326;--bad:#ff8a7a;--sheet:#151a2e;--sheet-ink:#e8ebf6;--sheet-soft:#1d2442;--sheet-note:#2a2513;--shadow:0 1px 2px #0000004d,0 8px 24px #00000040}*{box-sizing:border-box}[hidden]{display:none!important}body{background:var(--bg);color:var(--ink);font:16px/1.55 var(--text);-webkit-font-smoothing:antialiased;margin:0}a{color:var(--blue);text-decoration:none}a:hover{text-decoration:underline}button,input,textarea{font:inherit;color:inherit}:focus-visible{outline:3px solid var(--blue);outline-offset:2px;border-radius:6px}.wrap{max-width:1160px;margin:0 auto;padding-inline:20px}@media (max-width:600px){.wrap{padding-inline:16px}}.top{background:var(--surface);border-bottom:1px solid var(--line);top:env(safe-area-inset-top,0px);z-index:20;position:sticky}.top .wrap{align-items:center;gap:20px;height:64px;display:flex}.logo{color:var(--ink);font:800 20px/1 var(--display);letter-spacing:-.01em;align-items:center;gap:10px;display:flex}.logo:hover{text-decoration:none}.logo .ava{background:var(--blue) url(/img/fly.webp) center 30%/150% auto no-repeat;border-radius:50%;flex:none;width:38px;height:38px}.logo span em{color:var(--blue);font-style:normal}.nav{gap:4px;display:flex}.nav a{color:var(--muted);border-radius:10px;padding:8px 12px;font-weight:500}.nav a:hover,.nav a.on{color:var(--ink);background:var(--surface-2);text-decoration:none}.search{flex:1;max-width:340px;margin-left:auto;position:relative}.search input{border:1px solid var(--line);background:var(--bg);border-radius:12px;width:100%;height:40px;padding:0 14px 0 38px}.search svg{color:var(--muted);position:absolute;top:11px;left:12px}.iconbtn{border:1px solid var(--line);background:var(--surface);cursor:pointer;width:40px;height:40px;color:var(--ink);border-radius:12px;flex:none;place-items:center;display:grid}.iconbtn:hover{background:var(--surface-2)}.burger{display:none}@media (max-width:860px){.nav,.top .search{display:none}.burger{display:grid}.top .wrap{gap:10px}.logo{margin-right:auto}}.btn{cursor:pointer;white-space:nowrap;border:0;border-radius:12px;justify-content:center;align-items:center;gap:8px;height:48px;padding:0 22px;font-weight:600;display:inline-flex}.btn:hover{text-decoration:none}.btn-sun{background:var(--sun);color:var(--sun-ink)}.btn-sun:hover{background:var(--sun-hover)}.btn-ghost{border:1px solid var(--line);color:var(--ink);background:0 0}.btn-ghost:hover{background:var(--surface-2)}.btn-blue{background:var(--blue);color:var(--on-blue)}.btn-sm{border-radius:10px;height:38px;padding:0 14px;font-size:14px}h1,h2,h3{text-wrap:balance;margin:0}.h-display{font:800 clamp(28px,4.6vw,46px)/1.08 var(--display);letter-spacing:-.02em}h2.sec{font:600 22px/1.2 var(--display);letter-spacing:-.01em}.eyebrow{letter-spacing:.08em;text-transform:uppercase;color:var(--muted);font-size:12px;font-weight:600}.muted{color:var(--muted)}.screen{padding-block:28px 64px}.stack{flex-direction:column;gap:20px;display:flex}.hero{grid-template-columns:minmax(0,1.25fr) minmax(0,.75fr);align-items:center;gap:32px;padding-block:12px 8px;display:grid}.hero p.lead{color:var(--muted);max-width:34em;margin:14px 0 22px;font-size:18px}.hero-art{aspect-ratio:1;justify-self:center;width:100%;max-width:400px;position:relative}.hero-art:before{content:"";background:var(--blue);border-radius:42% 58% 50% 50%/48% 40% 60% 52%;position:absolute;inset:8% 4% 2%}.hero-art:after{content:"";aspect-ratio:1;background:var(--sun);border-radius:50%;width:26%;position:absolute;top:4%;right:2%}.hero-art img{z-index:1;width:auto;height:104%;margin:-6% auto 0;display:block;position:relative}.solver{background:var(--surface);border:1px solid var(--line);box-shadow:var(--shadow);border-radius:20px;padding:16px}.drop{border:2px dashed color-mix(in srgb,var(--blue) 45%,transparent);cursor:pointer;background:var(--blue-soft);border-radius:14px;align-items:center;gap:16px;padding:22px 16px;display:flex}.drop:hover,.drop.over{border-color:var(--blue)}.drop .cam{background:var(--blue);width:52px;height:52px;color:var(--on-blue);border-radius:14px;flex:none;place-items:center;display:grid}.drop b{font-size:17px;display:block}.drop small{color:var(--muted)}.drop img.preview{object-fit:cover;border-radius:10px;flex:none;width:52px;height:52px}.or{color:var(--muted);align-items:center;gap:12px;margin:12px 0;font-size:13px;display:flex}.or:before,.or:after{content:"";background:var(--line);flex:1;height:1px}.solver textarea{resize:vertical;border:1px solid var(--line);background:var(--bg);border-radius:12px;width:100%;min-height:76px;padding:12px 14px}.solver-foot{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;margin-top:12px;display:flex}.solver-foot small{color:var(--muted);align-items:center;gap:6px;display:flex}.hero-title{align-items:center;gap:12px;display:flex}.hero-mini{display:none}@media (max-width:860px){.hero{grid-template-columns:1fr}.hero-art{display:none}.hero-mini{flex:none;width:72px;margin:-6px -4px -10px 0;display:block}.h-display{font-size:26px}.hero p.lead{margin:10px 0 16px;font-size:16px}.hero{padding-top:0}.solver{padding:12px}.drop{gap:12px;padding:14px 12px}.drop b{font-size:16px}.solver-foot .btn{width:100%}}.panel{background:var(--surface);border:1px solid var(--line);border-radius:20px;padding:22px}@media (max-width:600px){.panel{border-radius:16px;padding:16px}}.chips{flex-wrap:wrap;gap:8px;display:flex}.chip{border:1px solid var(--line);background:var(--surface);height:36px;color:var(--ink);cursor:pointer;border-radius:999px;align-items:center;padding:0 14px;font-size:15px;font-weight:500;display:inline-flex}.chip:hover{border-color:var(--blue);text-decoration:none}.chip.on{background:var(--blue);border-color:var(--blue);color:var(--on-blue)}.grades .chip{justify-content:center;width:44px;padding:0}.books{grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:18px;display:grid}.book{color:var(--ink);flex-direction:column;gap:8px;display:flex}.book:hover{text-decoration:none}.book img{aspect-ratio:480/628;object-fit:cover;width:100%;height:auto;box-shadow:var(--shadow);border-radius:10px;transition:transform .15s}.book:hover img{transform:translateY(-3px)}.book b{font-weight:600;line-height:1.3}.book small{color:var(--muted);font-size:13px;line-height:1.35}.tag{border-radius:6px;align-items:center;width:max-content;height:22px;padding:0 8px;font-size:12px;font-weight:600;display:inline-flex}.tag.ok{background:var(--ok-soft);color:var(--ok)}.tag.soon{background:var(--surface-2);color:var(--muted)}.tag.subj{background:var(--blue-soft);color:var(--blue-ink)}@media (max-width:600px){.books{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}}.fresh{grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:12px;display:grid}.fresh a{border:1px solid var(--line);background:var(--surface);color:var(--ink);border-radius:14px;flex-direction:column;gap:8px;padding:14px 16px;display:flex}.fresh a:hover{border-color:var(--blue);text-decoration:none}.fresh p{-webkit-line-clamp:2;-webkit-box-orient:vertical;margin:0;display:-webkit-box;overflow:hidden}.fresh .meta{color:var(--muted);align-items:center;gap:8px;font-size:13px;display:flex}@media (max-width:600px){.fresh{grid-template-columns:1fr}}.botband{background:var(--blue);color:var(--on-blue);border-radius:20px;align-items:center;gap:18px;padding:18px 22px;display:flex;overflow:hidden}.botband img{width:84px;height:auto;margin-block:-30px -40px}.botband p{flex:1;margin:0}.botband b{font:600 18px/1.3 var(--display)}html[data-scheme=dark] .botband{background:var(--blue-soft);color:var(--ink)}@media (max-width:600px){.botband{flex-wrap:wrap}.botband .btn{width:100%}}.crumbs{color:var(--muted);flex-wrap:wrap;gap:6px;margin-bottom:14px;font-size:14px;display:flex}.crumbs a{color:var(--muted)}.crumbs span[aria-hidden]{opacity:.5}.bookhead{grid-template-rows:auto 1fr;grid-template-columns:150px minmax(0,1fr);align-items:start;gap:16px 24px;display:grid}.bookhead>img{width:100%;height:auto;box-shadow:var(--shadow);border-radius:10px;grid-row:1/3}.bookhead h1{font:800 clamp(20px,3.2vw,32px)/1.15 var(--display);letter-spacing:-.015em}.bh-sub{color:var(--muted);margin:10px 0 0;font-size:15px;line-height:1.7}.bh-sub .tag{vertical-align:1px;margin-left:4px}.bh-more{margin-top:6px;font-size:15px}.bh-more summary{cursor:pointer;color:var(--blue);width:max-content}.bh-more p{color:var(--muted);margin:6px 0 0}.numfind{grid-column:2;align-self:end;gap:8px;max-width:420px;display:flex}.numfind input{border:1px solid var(--line);background:var(--surface);border-radius:12px;flex:1;min-width:0;height:48px;padding:0 14px}.numfind .btn{flex:none;height:48px}@media (max-width:600px){.bookhead{grid-template-columns:72px minmax(0,1fr);gap:14px}.bookhead>img{border-radius:6px;grid-row:auto}.bh-sub{margin-top:6px;font-size:14px;line-height:1.6}.bh-sub .tag{display:none}.bh-more{font-size:14px}.numfind{grid-column:1/-1;max-width:none}}.toc details{border-top:1px solid var(--line)}.toc details:first-child{border-top:0}.toc summary{cursor:pointer;align-items:baseline;gap:12px;padding:14px 0;font-weight:600;list-style:none;display:flex}.toc summary::-webkit-details-marker{display:none}.toc summary:after{content:"";border-right:2px solid var(--muted);border-bottom:2px solid var(--muted);flex:none;align-self:center;width:10px;height:10px;margin-left:auto;transform:rotate(45deg)}.toc details[open]>summary:after{transform:rotate(-135deg)}.toc .ch{font:600 13px/1 var(--display);color:var(--blue);min-width:34px}.item{padding:4px 0 14px 46px}.item h3{margin-bottom:8px;font-size:15px;font-weight:500}.item h3 span{color:var(--muted);margin-right:6px}.nums{grid-template-columns:repeat(auto-fill,minmax(64px,1fr));gap:6px;display:grid}.nums a{background:var(--surface-2);height:40px;color:var(--ink);font-variant-numeric:tabular-nums;text-align:center;border-radius:10px;place-items:center;padding:0 4px;font-size:15px;font-weight:500;line-height:1.1;display:grid}.nums a:hover{background:var(--blue-soft);color:var(--blue-ink);text-decoration:none}.nums a.on{background:var(--blue);color:var(--on-blue)}.nums a.kv{font-size:12px}@media (max-width:600px){.item{padding-left:0}.nums{grid-template-columns:repeat(auto-fill,minmax(56px,1fr))}}.taskgrid{grid-template-columns:minmax(0,1fr) 300px;align-items:start;gap:28px;display:grid}.taskhead{flex-wrap:wrap;justify-content:space-between;align-items:flex-end;gap:16px;margin-bottom:18px;display:flex}.taskhead h1{font:800 clamp(24px,3.4vw,34px)/1.12 var(--display);letter-spacing:-.015em}.taskhead p{color:var(--muted);margin:6px 0 0}.pager{gap:8px;display:flex}.sol.hide-num .head .num{display:none}.sheet{background:var(--sheet);border:1px solid var(--line);border-radius:20px;overflow:hidden}.react{border-top:1px solid var(--line);color:var(--muted);flex-wrap:wrap;align-items:center;gap:10px;padding:14px 32px;font-size:15px;display:flex}.react .btn{height:36px;padding:0 12px;font-size:15px}.react .btn.on{border-color:var(--ok);color:var(--ok);background:var(--ok-soft)}@media (max-width:600px){.react{padding:12px 16px}}.cta{background:var(--sun-soft);border-radius:18px;align-items:center;gap:16px;margin-top:18px;padding:16px 20px;display:flex}.cta img{width:64px;margin-block:-14px -20px}.cta p{color:var(--ink);flex:1;margin:0}.cta b{display:block}@media (max-width:600px){.cta{flex-wrap:wrap}.cta .btn{width:100%}}.side{flex-direction:column;gap:16px;display:flex;position:sticky;top:88px}.side .bookmini{color:var(--ink);grid-template-columns:64px 1fr;align-items:center;gap:12px;display:grid}.side .bookmini:hover{text-decoration:none}.side .bookmini img{border-radius:6px;width:64px;height:auto}.side .bookmini small{color:var(--muted);display:block}.side .nums{grid-template-columns:repeat(4,1fr)}@media (max-width:960px){.taskgrid{grid-template-columns:1fr}.side{position:static}}.mobilebar{display:none}@media (max-width:600px){.mobilebar{z-index:25;padding:10px 16px calc(10px + env(safe-area-inset-bottom,0px));background:var(--surface);border-top:1px solid var(--line);gap:8px;display:flex;position:fixed;bottom:0;left:0;right:0}.mobilebar .btn{flex:1;height:46px}.with-bar{padding-bottom:96px}.taskhead .pager{justify-content:space-between;width:100%}.taskhead .pager .btn{flex:1}.mobilebar .btn-ghost{flex:none;padding:0 14px}}.solving{text-align:center;flex-direction:column;align-items:center;gap:8px;max-width:560px;margin:0 auto;display:flex}.solving img.fly{width:190px;animation:2.4s ease-in-out infinite fly}@keyframes fly{50%{transform:translate(6px,-10px)rotate(-2deg)}}@media (prefers-reduced-motion:reduce){.solving img.fly{animation:none}}.solving h1{font:800 clamp(24px,3.4vw,32px)/1.15 var(--display)}.thumb{background:var(--surface);border:1px solid var(--line);text-align:left;border-radius:14px;align-items:center;gap:12px;width:100%;margin:10px 0 6px;padding:10px 14px;display:flex}.thumb .ph{background:var(--surface-2);width:56px;height:56px;color:var(--muted);border-radius:10px;flex:none;place-items:center;display:grid}.steps{text-align:left;flex-direction:column;gap:2px;width:100%;margin:8px 0 0;padding:0;list-style:none;display:flex}.steps li{color:var(--muted);border-radius:12px;align-items:center;gap:12px;padding:10px 14px;display:flex}.steps li .dot{border:2px solid var(--line);border-radius:50%;flex:none;place-items:center;width:24px;height:24px;display:grid}.steps li .dot svg{display:none}.steps li.done{color:var(--ink)}.steps li.done .dot{background:var(--ok);border-color:var(--ok);color:#fff}.steps li.done .dot svg{display:block}.steps li.now{color:var(--ink);background:var(--surface);font-weight:600}.steps li.now .dot{border-color:var(--blue);border-top-color:#0000;animation:.8s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}.empty{grid-template-columns:240px minmax(0,1fr);align-items:center;gap:32px;max-width:860px;margin:0 auto;display:grid}.empty img{width:100%;height:auto}.empty h1{font:800 clamp(24px,3.4vw,34px)/1.12 var(--display);margin-bottom:12px}.empty p{color:var(--muted);margin:0 0 20px;font-size:17px}.empty .row{flex-wrap:wrap;gap:10px;display:flex}.meter{background:var(--surface-2);border-radius:99px;max-width:320px;height:10px;margin:0 0 8px;overflow:hidden}.meter i{background:var(--sun);width:100%;height:100%;display:block}@media (max-width:700px){.empty{text-align:center;grid-template-columns:1fr;gap:8px}.empty img{width:180px;margin:0 auto}.empty .row{justify-content:center}.meter{margin-inline:auto}}.share{flex-wrap:wrap;gap:8px;display:flex}.usermeta{color:var(--muted);flex-wrap:wrap;align-items:center;gap:10px;margin-top:8px;font-size:14px;display:flex}footer{border-top:1px solid var(--line);background:var(--surface);color:var(--muted);font-size:14px}footer .wrap{flex-wrap:wrap;justify-content:space-between;gap:20px;padding-block:24px;display:flex}footer a{color:var(--muted)}.sheet.sol{color:var(--sheet-ink);font-family:Inter,-apple-system,sans-serif;font-size:18px;line-height:1.55}.sheet.sol .card{background:var(--sheet)}.sheet.sol .card+.card{border-top:1px solid var(--line)}.sheet.sol .condition{background:var(--sheet-soft)}.sheet.sol .explanation{background:var(--sheet-note)}.sheet.sol .topic,.sheet.sol .label{color:var(--muted)}.sheet.sol .md th,.sheet.sol .md td{border-color:var(--line)}.sheet.sol .md th{background:var(--sheet-soft)}.sheet.sol .math.block{overflow:auto hidden}.sheet.sol .answer-box{border-color:currentColor}.sheet.sol .warn{background:color-mix(in srgb,var(--bad) 12%,var(--sheet));color:var(--sheet-ink)}html[data-scheme=dark] .sheet.sol .figure svg{filter:invert()hue-rotate(180deg)}@media (max-width:600px){.sheet.sol{font-size:16px}.sheet.sol .card{padding:20px 16px}}z-g{font:inherit}.sol .figure,.sol .figure *{-webkit-user-select:none;user-select:none}.menu{border-top:1px solid var(--line);background:var(--surface);display:none}.menu.open{display:block}.top .menu .wrap{flex-direction:column;align-items:stretch;gap:4px;height:auto;padding-block:12px;display:flex}.menu{box-shadow:0 12px 24px #141a331f}.menu a{color:var(--ink);padding:10px 4px;font-weight:500}.menu form{gap:8px;margin-top:6px;display:flex}.menu input{border:1px solid var(--line);background:var(--bg);border-radius:12px;flex:1;min-width:0;height:44px;padding:0 14px}@media (min-width:861px){.menu{display:none!important}}.notice{border-radius:14px;margin-top:12px;padding:14px 16px;font-size:15px}.notice.err{background:color-mix(in srgb,var(--bad) 12%,var(--surface));color:var(--ink)}.notice.info{background:var(--blue-soft);color:var(--ink)}.notice p{margin:0}.notice ul{margin:8px 0 0;padding-left:18px}.notice .reason{color:var(--muted);margin-top:6px}.choice{flex-direction:column;gap:8px;margin-top:10px;display:flex}.choice a{border:1px solid var(--line);background:var(--surface);color:var(--ink);border-radius:12px;justify-content:space-between;gap:12px;padding:12px 14px;display:flex}.choice a:hover{border-color:var(--blue);text-decoration:none}.captcha-box{min-height:0}.list{flex-direction:column;gap:10px;display:flex}.hit{border:1px solid var(--line);background:var(--surface);color:var(--ink);border-radius:14px;flex-direction:column;gap:6px;padding:14px 16px;display:flex}.hit:hover{border-color:var(--blue);text-decoration:none}.hit .meta{color:var(--muted);flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;display:flex}.hit p{margin:0}.pages{justify-content:center;gap:8px;margin-top:20px;display:flex}.subjects{grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:12px;display:grid}.subject{border:1px solid var(--line);background:var(--surface);color:var(--ink);border-radius:16px;flex-direction:column;gap:6px;padding:16px 18px;display:flex}.subject:hover{border-color:var(--blue);text-decoration:none}.subject b{font:600 18px/1.25 var(--display)}.subject small{color:var(--muted)}.page-title{font:800 clamp(24px,3.4vw,34px)/1.12 var(--display);letter-spacing:-.015em;margin-bottom:8px}.lead-muted{color:var(--muted);max-width:46em;margin:0 0 22px}.prose{max-width:720px}.prose h1{font:800 clamp(24px,3.4vw,32px)/1.15 var(--display);margin-bottom:16px}.prose p,.prose li{font-size:17px}.empty-note{color:var(--muted);padding:24px 0}.trap{width:1px;height:1px;position:absolute;left:-9999px;overflow:hidden}.numfind{flex-wrap:wrap}.cover-ph{aspect-ratio:480/628;background:var(--surface-2);border-radius:10px;width:100%;display:block}.solving-box{padding:22px 16px}.solving .steps{max-width:420px}.btn[disabled]{opacity:.6;cursor:progress}.theme .i-sun{display:none}html[data-scheme=dark] .theme .i-sun{display:block}html[data-scheme=dark] .theme .i-moon{display:none}.btn-nav{background:var(--blue-soft);color:var(--blue-ink);border:1px solid color-mix(in srgb,var(--blue) 25%,transparent);font-weight:600}.btn-nav:hover{background:color-mix(in srgb,var(--blue) 18%,var(--surface));text-decoration:none}.nums-more{text-align:center;margin-top:10px;font-size:14px;display:block}.captcha-note{color:var(--muted);margin:8px 0 0;font-size:12px}.captcha-note a{color:var(--muted);text-decoration:underline}