:root{--primary:#26bdef;--primary-dark:#076896;--dark:#141414;--footer-bg:#252525;--text:#555555;--text-light:#777777;--text-muted:#aaaaaa;--border:#eeeeee;--bg-light:#f6f6f6;--white:#ffffff;--font-heading:"Roboto Condensed","Arial Narrow","Helvetica Neue","PingFang SC","Microsoft YaHei",sans-serif;--font-body:"Open Sans","PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:var(--font-body);color:var(--text);background:#ffffff;line-height:1.6;-webkit-font-smoothing:antialiased}a{color:var(--primary);text-decoration:none;transition:color .2s ease}a:hover{color:var(--primary-dark)}img{max-width:100%;height:auto;display:block}h1,h2,h3,h4,h5,h6{font-family:var(--font-heading);color:var(--dark);margin:0 0 .5em;line-height:1.25;font-weight:500}.container{width:90%;max-width:1200px;margin:0 auto}.clear{clear:both}#header{width:100%;top:0;z-index:9999;position:fixed;background:#ffffff;border-bottom:1px solid #fafafa;box-shadow:0 1px 4px rgba(0,0,0,.06)}#header-content{width:90%;max-width:1200px;margin:0 auto;display:flex;align-items:flex-end;justify-content:space-between;position:relative;padding:12px 0}.site-logo{display:inline-block}.site-title{font-family:var(--font-heading);font-size:32px;font-weight:700;margin:0;letter-spacing:.5px;text-transform:uppercase}.site-title,.site-title a{color:var(--primary)}.site-title a:hover{color:var(--primary-dark)}.site-title-hidden{display:none}#main-menu-con{font-family:var(--font-heading)}#main-menu-con ul{list-style:none;margin:0;padding:0;display:flex;align-items:flex-end}#main-menu-con li{position:relative;margin:0 1px}#main-menu-con a{color:var(--primary);display:inline-block;font-size:15px;padding:10px 15px 15px;text-align:center;text-transform:uppercase;font-weight:500;border-radius:5px}#main-menu-con a:hover,#main-menu-con li.active>a{background:var(--primary);color:#ffffff;border-radius:5px 5px 0 0}#main-menu-con li ul{display:none;position:absolute;top:100%;left:0;background:var(--primary);min-width:200px;flex-direction:column;align-items:stretch}#main-menu-con li:hover>ul{display:flex}#main-menu-con li ul a{color:#ffffff;padding:9px 15px;width:100%;text-align:left;text-transform:none;font-weight:100;border-radius:0;border-bottom:1px solid rgba(255,255,255,.25)}#main-menu-con li ul a:hover{background:rgba(0,0,0,.15);color:#eeeeee}.mobile-menu{display:none;cursor:pointer;font-family:var(--font-heading);text-transform:uppercase;color:var(--primary);font-weight:700}.headerheight{height:80px}.main-slider{position:relative;width:100%;overflow:hidden;background:#000}.main-slider .slide{position:relative;min-height:420px;background-size:cover;background-position:50%;display:flex;align-items:center;justify-content:center}.main-slider .slide-content{text-align:center;color:#fff;padding:40px;max-width:800px}.main-slider .slide-title{color:#fff;font-size:48px;font-weight:700;text-shadow:0 2px 8px rgba(0,0,0,.4)}.main-slider .slide-desc{font-size:20px;color:#fff;text-shadow:0 1px 4px rgba(0,0,0,.4)}.slider-nav{position:absolute;bottom:16px;left:0;right:0;display:flex;justify-content:center;gap:8px;z-index:10}.slider-dot{width:12px;height:12px;border-radius:50%;background:rgba(255,255,255,.5);border:none;cursor:pointer;padding:0}.slider-dot.active{background:var(--primary)}.boxtoptitle{font-size:48px;color:var(--dark);font-family:var(--font-heading);font-weight:500}.boxtopdes,.boxtoptitle{text-align:center;width:90%;margin:0 auto}.boxtopdes{font-size:18px;line-height:1.4;max-width:650px;padding:21px 0 0;font-weight:300;color:var(--text-light)}.lsep{background:url(/theme/lsep.png) no-repeat top transparent;clear:both;height:5px;margin:10px auto;max-width:90%}#featured-box-item{padding:30px 0}.featured-boxs{display:flex;flex-wrap:wrap;justify-content:center;margin:40px auto 0;gap:20px;width:90%;max-width:1200px}.featured-box{flex:1 1 200px;max-width:280px;min-width:200px;padding:8px 12px;text-align:center}.box-icon{border-radius:150px;display:flex;align-items:center;justify-content:center;font-size:46px;height:115px;width:115px;margin:0 auto 20px;border:2px solid #ffffff;color:#ffffff;background:var(--primary);box-shadow:0 0 0 2px var(--primary);transition:all .35s}.box-icon svg{width:46px;height:46px;fill:#fff}.featured-box:hover .box-icon{color:var(--primary);background:#ffffff}.featured-box:hover .box-icon svg{fill:var(--primary)}.ftitle{font-weight:500;font-size:22px;color:var(--text-light);font-family:var(--font-heading);transition:all .5s;margin-bottom:.4em}.featured-box:hover .ftitle{color:var(--primary)}.featured-box p{font-size:14px;color:var(--text-muted);line-height:1.6}#portfolio-box-item{padding:40px 0}.grid-portfolio{display:flex;flex-wrap:wrap;justify-content:center;gap:24px;list-style:none;margin:30px auto 0;padding:0;width:90%;max-width:1200px}.grid-portfolio li{flex:1 1 240px;max-width:270px;position:relative;overflow:hidden;border-radius:4px}.grid-portfolio figure{margin:0;position:relative;overflow:hidden}.grid-portfolio figure img{width:100%;transition:transform .4s ease}.grid-portfolio li:hover figure img{transform:scale(1.08)}.grid-portfolio figcaption{position:absolute;inset:0;background:rgba(38,189,239,.85);color:#fff;display:flex;flex-direction:column;justify-content:center;align-items:center;text-align:center;padding:16px;opacity:0;transition:opacity .35s ease}.grid-portfolio li:hover figcaption{opacity:1}.grid-portfolio figcaption h3{color:#fff;font-size:20px;margin:0 0 6px}.grid-portfolio figcaption span{font-size:13px;line-height:1.4}.heading1container{width:100%;padding:40px 0;overflow:hidden}.heading1vcenter{width:90%;max-width:1200px;margin:0 auto;display:flex;align-items:center;padding:24px 30px;background:var(--bg-light);border:7px solid #ffffff;box-shadow:0 0 1px 0 #eeeeee,0 1px 8px rgba(0,0,0,.08);border-radius:3px;gap:20px}.heading1text{flex:1 1;text-align:right}#heading1{color:var(--primary);font-size:30px;font-weight:100;text-shadow:1px 1px 0 #ffffff;margin:0 0 8px}#heading1 em{font-weight:500;font-style:normal}.heading-desc1{color:var(--text);font-size:16px;font-weight:100;line-height:1.6;margin:0}.heading1vcenter .vcenter{border-left:3px solid var(--text-muted);padding-left:24px;text-align:center}.btn{display:inline-block;background:var(--primary);color:#fff;border:none;font-family:var(--font-heading);text-transform:uppercase;font-size:15px;padding:12px 28px;border-radius:4px;cursor:pointer;transition:background .3s ease}.btn:hover{background:var(--primary-dark);color:#fff}#staff-box-item{padding:40px 0}#grid-staff{display:flex;flex-wrap:wrap;justify-content:center;gap:24px;width:90%;max-width:1200px;margin:30px auto 0}.view-staff{flex:1 1 220px;max-width:300px;position:relative;text-align:center}.view-staff img{width:100%;border-radius:4px}.view-staff-name{background:var(--primary);color:#fff;padding:10px;border-radius:4px 4px 0 0}.view-staff-name h3{color:#fff;font-size:18px;margin:0}.view-staff-name p{margin:2px 0 0;font-size:13px;opacity:.9}.view-staff-back{padding:8px 0}#wpsblogpost{padding:40px 0}.f-blog-page{display:flex;gap:40px;align-items:flex-start}.blog-main{flex:1 1;min-width:0}.post{margin-bottom:40px;padding-bottom:30px;border-bottom:1px solid var(--border)}.post-thumb{overflow:hidden;border-radius:4px;margin-bottom:16px}.post-thumb img{width:100%;transition:transform .4s ease}.post:hover .post-thumb img{transform:scale(1.04)}.post h2.entry-title{font-size:26px;margin:0 0 8px}.post h2.entry-title a{color:var(--dark)}.post h2.entry-title a:hover{color:var(--primary)}.post-meta{display:flex;flex-wrap:wrap;gap:4px 20px;font-size:13px;color:var(--text-muted);margin:5px 0 12px}.post-meta span{display:inline-flex;align-items:center;gap:6px}.post-meta svg{width:14px;height:14px;fill:var(--primary)}.post-excerpt{color:var(--text);line-height:1.7}.read-more{display:inline-block;margin-top:10px;font-family:var(--font-heading);text-transform:uppercase;font-size:13px;font-weight:700;color:var(--primary)}.read-more:hover{color:var(--primary-dark)}#page-nav{display:flex;justify-content:space-between;margin-top:20px;font-family:var(--font-heading);text-transform:uppercase;font-size:14px}.single-post .entry-title{font-size:32px}.post-content{font-size:16px;line-height:1.8;color:#333;overflow-wrap:break-word;word-break:break-word}.post-content p{margin:0 0 1em}.post-content h2,.post-content h3,.post-content h4{margin-top:1.6em;color:var(--dark)}.post-content h2{font-size:24px;border-left:4px solid var(--primary);padding-left:12px}.post-content h3{font-size:20px}.post-content img{border-radius:4px;margin:1em auto}.post-content a{border-bottom:1px solid var(--primary)}.post-content blockquote{border-left:4px solid var(--primary);margin:1em 0;padding:.5em 1em;background:var(--bg-light);color:var(--text-light)}.post-content pre{background:#272d35;color:#e6e6e6;padding:16px;border-radius:6px;overflow-x:auto;max-width:100%;font-size:14px;line-height:1.5}.post-content code{font-family:SFMono-Regular,Consolas,Liberation Mono,Menlo,monospace}.post-content :not(pre)>code{background:var(--bg-light);color:var(--primary-dark);padding:2px 6px;border-radius:3px;font-size:.9em}.post-content pre code{background:none;color:inherit;padding:0}.post-content table{border-collapse:collapse;width:100%;margin:1em 0}.post-content td,.post-content th{border:1px solid var(--border);padding:8px 12px;text-align:left}.post-content th{background:var(--bg-light)}.post-content .katex{font-size:1.05em}.post-content .katex-display{overflow-x:auto;overflow-y:hidden;padding:6px 0;max-width:100%}.post-content ol,.post-content ul{padding-left:1.6em;margin:0 0 1em}.post-content ul{list-style:disc}.post-content ol{list-style:decimal}.post-tags{margin:24px 0}.post-tags a.tag-chip{display:inline-block;background:var(--bg-light);color:var(--text);border:1px solid var(--border);border-radius:20px;padding:4px 14px;margin:0 6px 8px 0;font-size:13px}.post-tags a.tag-chip:hover{background:var(--primary);color:#fff;border-color:var(--primary)}.sidebar{width:300px;flex-shrink:0}.widget{margin-bottom:30px;background:var(--bg-light);padding:20px;border-radius:4px}.widget-title{font-size:18px;font-family:var(--font-heading);text-transform:uppercase;color:var(--dark);border-bottom:2px solid var(--primary);padding-bottom:8px;margin-bottom:14px}.widget ul{list-style:none;margin:0;padding:0}.widget ul li{padding:6px 0;border-bottom:1px dashed var(--border);list-style:square inside;color:var(--primary)}.widget ul li a{color:var(--text)}.widget ul li a:hover{color:var(--primary)}.search-form{display:flex;gap:8px}.search-form input[type=text]{flex:1 1;border:1px solid var(--border);border-radius:4px;padding:8px 12px;font-size:14px;font-family:inherit}.search-form button{background:var(--primary);border:none;color:#fff;border-radius:4px;padding:0 16px;cursor:pointer}.tag-cloud{display:flex;flex-wrap:wrap;gap:6px}#footer{background:var(--footer-bg);border-top:10px solid var(--dark);border-bottom:50px solid var(--dark);color:var(--text-muted);margin-top:40px}#footer-content{width:90%;max-width:1200px;margin:0 auto;padding:30px 0 20px}#footer-sidebar{display:flex;flex-wrap:wrap;gap:4%}#footer-sidebar .footer-widget{flex:1 1 200px;min-width:200px;margin-bottom:30px}#footer-sidebar .footer-widget h3{color:#eeeeee;font-size:17px;text-transform:uppercase;border-bottom:2px solid var(--primary);padding-bottom:8px;margin-bottom:14px}#footer-sidebar .footer-widget ul{list-style:none;margin:0;padding:0 0 0 15px}#footer-sidebar .footer-widget li{list-style:square outside;padding:5px 0;color:var(--text-muted)}#footer-sidebar .footer-widget a{color:var(--text-muted)}#footer-sidebar .footer-widget a:hover{color:#fff;text-decoration:underline}.social{text-align:center;margin-bottom:24px}.social a{display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;margin:0 6px;border-radius:50%;background:rgba(255,255,255,.1);color:#fff;transition:all .3s}.social a:hover{background:var(--primary)}.social svg{width:18px;height:18px;fill:#fff}#creditline{color:#eeeeee;font-size:13px;text-align:center;margin-top:10px}#creditline a{font-weight:700;color:var(--primary)}.go-top{background:var(--primary);border-radius:50%;bottom:20px;color:#fff;display:none;font-size:20px;opacity:.6;padding:10px;position:fixed;right:20px;width:45px;height:45px;line-height:1.2;text-align:center;z-index:99}.go-top:hover{opacity:1;color:#fff}.go-top.show{display:block}.page-header{background:var(--primary);color:#fff;padding:40px 0;margin-bottom:30px}.page-header h1{color:#fff;margin:0;font-size:32px}.page-header .subtitle{color:rgba(255,255,255,.85);margin-top:6px}.searchinfo{text-align:center;padding:60px 0}@media (max-width:900px){.mobile-menu{display:block}#main-menu-con{display:none;position:absolute;top:100%;right:0;left:0;background:#fff;box-shadow:0 4px 12px rgba(0,0,0,.1)}#main-menu-con.open{display:block}#main-menu-con ul{flex-direction:column}#main-menu-con li{margin:0;border-bottom:1px solid var(--border)}#main-menu-con a{display:block;padding:12px 20px;text-align:left;border-radius:0}#main-menu-con li ul{position:static;display:none}#main-menu-con li.open>ul{display:flex}.f-blog-page{flex-direction:column;gap:24px}.sidebar{width:100%}.page-header{padding:26px 0}.page-header h1,.single-post .entry-title{font-size:23px;line-height:1.35;overflow-wrap:break-word;word-break:break-word}.post-content{font-size:15px}.post-content h2{font-size:20px}.post-content h3{font-size:17px}.post-content pre{font-size:13px;padding:12px;-webkit-overflow-scrolling:touch}.post-content table{display:block;overflow-x:auto;-webkit-overflow-scrolling:touch}.post-content img{max-width:100%;height:auto}.post-meta{gap:4px 14px;font-size:12px}.heading1vcenter{flex-direction:column}#heading1,.heading-desc1,.heading1text,.heading1vcenter{text-align:center}.heading1vcenter .vcenter{border-left:none;padding-left:0}.main-slider .slide{min-height:260px}.main-slider .slide-title{font-size:30px}.boxtoptitle{font-size:32px}}@font-face{font-display:block;font-family:KaTeX_AMS;font-style:normal;font-weight:400;src:url(/_next/static/media/KaTeX_AMS-Regular.a79f1c31.woff2) format("woff2"),url(/_next/static/media/KaTeX_AMS-Regular.1608a09b.woff) format("woff"),url(/_next/static/media/KaTeX_AMS-Regular.4aafdb68.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Caligraphic;font-style:normal;font-weight:700;src:url(/_next/static/media/KaTeX_Caligraphic-Bold.ec17d132.woff2) format("woff2"),url(/_next/static/media/KaTeX_Caligraphic-Bold.b6770918.woff) format("woff"),url(/_next/static/media/KaTeX_Caligraphic-Bold.cce5b8ec.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Caligraphic;font-style:normal;font-weight:400;src:url(/_next/static/media/KaTeX_Caligraphic-Regular.55fac258.woff2) format("woff2"),url(/_next/static/media/KaTeX_Caligraphic-Regular.dad44a7f.woff) format("woff"),url(/_next/static/media/KaTeX_Caligraphic-Regular.07ef19e7.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Fraktur;font-style:normal;font-weight:700;src:url(/_next/static/media/KaTeX_Fraktur-Bold.d42a5579.woff2) format("woff2"),url(/_next/static/media/KaTeX_Fraktur-Bold.9f256b85.woff) format("woff"),url(/_next/static/media/KaTeX_Fraktur-Bold.b18f59e1.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Fraktur;font-style:normal;font-weight:400;src:url(/_next/static/media/KaTeX_Fraktur-Regular.d3c882a6.woff2) format("woff2"),url(/_next/static/media/KaTeX_Fraktur-Regular.7c187121.woff) format("woff"),url(/_next/static/media/KaTeX_Fraktur-Regular.ed38e79f.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:normal;font-weight:700;src:url(/_next/static/media/KaTeX_Main-Bold.c3fb5ac2.woff2) format("woff2"),url(/_next/static/media/KaTeX_Main-Bold.d181c465.woff) format("woff"),url(/_next/static/media/KaTeX_Main-Bold.b74a1a8b.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:italic;font-weight:700;src:url(/_next/static/media/KaTeX_Main-BoldItalic.6f2bb1df.woff2) format("woff2"),url(/_next/static/media/KaTeX_Main-BoldItalic.e3f82f9d.woff) format("woff"),url(/_next/static/media/KaTeX_Main-BoldItalic.70d8b0a5.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:italic;font-weight:400;src:url(/_next/static/media/KaTeX_Main-Italic.8916142b.woff2) format("woff2"),url(/_next/static/media/KaTeX_Main-Italic.9024d815.woff) format("woff"),url(/_next/static/media/KaTeX_Main-Italic.47373d1e.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:normal;font-weight:400;src:url(/_next/static/media/KaTeX_Main-Regular.0462f03b.woff2) format("woff2"),url(/_next/static/media/KaTeX_Main-Regular.7f51fe03.woff) format("woff"),url(/_next/static/media/KaTeX_Main-Regular.b7f8fe9b.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Math;font-style:italic;font-weight:700;src:url(/_next/static/media/KaTeX_Math-BoldItalic.572d331f.woff2) format("woff2"),url(/_next/static/media/KaTeX_Math-BoldItalic.f1035d8d.woff) format("woff"),url(/_next/static/media/KaTeX_Math-BoldItalic.a879cf83.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Math;font-style:italic;font-weight:400;src:url(/_next/static/media/KaTeX_Math-Italic.f28c23ac.woff2) format("woff2"),url(/_next/static/media/KaTeX_Math-Italic.5295ba48.woff) format("woff"),url(/_next/static/media/KaTeX_Math-Italic.939bc644.ttf) format("truetype")}@font-face{font-display:block;font-family:"KaTeX_SansSerif";font-style:normal;font-weight:700;src:url(/_next/static/media/KaTeX_SansSerif-Bold.8c5b5494.woff2) format("woff2"),url(/_next/static/media/KaTeX_SansSerif-Bold.bf59d231.woff) format("woff"),url(/_next/static/media/KaTeX_SansSerif-Bold.94e1e8dc.ttf) format("truetype")}@font-face{font-display:block;font-family:"KaTeX_SansSerif";font-style:italic;font-weight:400;src:url(/_next/static/media/KaTeX_SansSerif-Italic.3b1e59b3.woff2) format("woff2"),url(/_next/static/media/KaTeX_SansSerif-Italic.7c9bc82b.woff) format("woff"),url(/_next/static/media/KaTeX_SansSerif-Italic.b4c20c84.ttf) format("truetype")}@font-face{font-display:block;font-family:"KaTeX_SansSerif";font-style:normal;font-weight:400;src:url(/_next/static/media/KaTeX_SansSerif-Regular.ba21ed5f.woff2) format("woff2"),url(/_next/static/media/KaTeX_SansSerif-Regular.74048478.woff) format("woff"),url(/_next/static/media/KaTeX_SansSerif-Regular.d4d7ba48.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Script;font-style:normal;font-weight:400;src:url(/_next/static/media/KaTeX_Script-Regular.03e9641d.woff2) format("woff2"),url(/_next/static/media/KaTeX_Script-Regular.07505710.woff) format("woff"),url(/_next/static/media/KaTeX_Script-Regular.fe9cbbe1.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size1;font-style:normal;font-weight:400;src:url(/_next/static/media/KaTeX_Size1-Regular.eae34984.woff2) format("woff2"),url(/_next/static/media/KaTeX_Size1-Regular.e1e279cb.woff) format("woff"),url(/_next/static/media/KaTeX_Size1-Regular.fabc004a.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size2;font-style:normal;font-weight:400;src:url(/_next/static/media/KaTeX_Size2-Regular.5916a24f.woff2) format("woff2"),url(/_next/static/media/KaTeX_Size2-Regular.57727022.woff) format("woff"),url(/_next/static/media/KaTeX_Size2-Regular.d6b476ec.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size3;font-style:normal;font-weight:400;src:url(/_next/static/media/KaTeX_Size3-Regular.b4230e7e.woff2) format("woff2"),url(/_next/static/media/KaTeX_Size3-Regular.9acaf01c.woff) format("woff"),url(/_next/static/media/KaTeX_Size3-Regular.a144ef58.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size4;font-style:normal;font-weight:400;src:url(/_next/static/media/KaTeX_Size4-Regular.10d95fd3.woff2) format("woff2"),url(/_next/static/media/KaTeX_Size4-Regular.7a996c9d.woff) format("woff"),url(/_next/static/media/KaTeX_Size4-Regular.fbccdabe.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Typewriter;font-style:normal;font-weight:400;src:url(/_next/static/media/KaTeX_Typewriter-Regular.a8709e36.woff2) format("woff2"),url(/_next/static/media/KaTeX_Typewriter-Regular.6258592b.woff) format("woff"),url(/_next/static/media/KaTeX_Typewriter-Regular.d97aaf4a.ttf) format("truetype")}.katex{font:normal 1.21em KaTeX_Main,Times New Roman,serif;line-height:1.2;position:relative;text-indent:0;text-rendering:auto}.katex *{-ms-high-contrast-adjust:none!important;border-color:currentColor}.katex .katex-version:after{content:"0.18.4"}.katex .katex-mathml{border:0;-webkit-clip-path:inset(50%);clip-path:inset(50%);height:1px;overflow:hidden;padding:0;position:absolute;width:1px}.katex .katex-html>.katex-newline{display:block}.katex .katex-base{position:relative;white-space:nowrap;width:min-content}.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;display:inline-table;table-layout:fixed}.katex .vlist-r{display:table-row}.katex .vlist{display:table-cell;position:relative;vertical-align:bottom}.katex .vlist>span{display:block;height:0;position:relative}.katex .vlist>span>span{display:inline-block}.katex .vlist>span>.pstrut{overflow:hidden;width:0}.katex .vlist-t2{margin-right:-2px}.katex .vlist-s{display:table-cell;font-size:1px;min-width:2px;vertical-align:bottom;width:2px}.katex .katex-vbox{align-items:baseline;display:inline-flex;flex-direction:column}.katex .katex-thinbox{display:inline-flex;flex-direction:row;max-width:0;width:0}.katex .msupsub{text-align:left}.katex .mfrac>span>span{text-align:center}.katex .mfrac .frac-line{border-bottom-style:solid;display:inline-block;width:100%}.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{display:inline;line-height:0}.katex .clap,.katex .llap,.katex .rlap{position:relative;width:0}.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;display:inline-block;width:100%}.katex .katex-hdashline{border-bottom-style:dashed;display:inline-block;width:100%}.katex .sqrt>.katex-root{margin-left:.2777777778em;margin-right:-.5555555556em}.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:.8333333333em}.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:1.1666666667em}.katex .fontsize-ensurer.reset-size2.size4,.katex .katex-sizing.reset-size2.size4{font-size:1.3333333333em}.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:1.6666666667em}.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:3.4566666667em}.katex .fontsize-ensurer.reset-size2.size11,.katex .katex-sizing.reset-size2.size11{font-size:4.1466666667em}.katex .fontsize-ensurer.reset-size3.size1,.katex .katex-sizing.reset-size3.size1{font-size:.7142857143em}.katex .fontsize-ensurer.reset-size3.size2,.katex .katex-sizing.reset-size3.size2{font-size:.8571428571em}.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:1.1428571429em}.katex .fontsize-ensurer.reset-size3.size5,.katex .katex-sizing.reset-size3.size5{font-size:1.2857142857em}.katex .fontsize-ensurer.reset-size3.size6,.katex .katex-sizing.reset-size3.size6{font-size:1.4285714286em}.katex .fontsize-ensurer.reset-size3.size7,.katex .katex-sizing.reset-size3.size7{font-size:1.7142857143em}.katex .fontsize-ensurer.reset-size3.size8,.katex .katex-sizing.reset-size3.size8{font-size:2.0571428571em}.katex .fontsize-ensurer.reset-size3.size9,.katex .katex-sizing.reset-size3.size9{font-size:2.4685714286em}.katex .fontsize-ensurer.reset-size3.size10,.katex .katex-sizing.reset-size3.size10{font-size:2.9628571429em}.katex .fontsize-ensurer.reset-size3.size11,.katex .katex-sizing.reset-size3.size11{font-size:3.5542857143em}.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:.5555555556em}.katex .fontsize-ensurer.reset-size5.size2,.katex .katex-sizing.reset-size5.size2{font-size:.6666666667em}.katex .fontsize-ensurer.reset-size5.size3,.katex .katex-sizing.reset-size5.size3{font-size:.7777777778em}.katex .fontsize-ensurer.reset-size5.size4,.katex .katex-sizing.reset-size5.size4{font-size:.8888888889em}.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:1.1111111111em}.katex .fontsize-ensurer.reset-size5.size7,.katex .katex-sizing.reset-size5.size7{font-size:1.3333333333em}.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:2.3044444444em}.katex .fontsize-ensurer.reset-size5.size11,.katex .katex-sizing.reset-size5.size11{font-size:2.7644444444em}.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:.4166666667em}.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:.5833333333em}.katex .fontsize-ensurer.reset-size7.size4,.katex .katex-sizing.reset-size7.size4{font-size:.6666666667em}.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:.8333333333em}.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:1.7283333333em}.katex .fontsize-ensurer.reset-size7.size11,.katex .katex-sizing.reset-size7.size11{font-size:2.0733333333em}.katex .fontsize-ensurer.reset-size8.size1,.katex .katex-sizing.reset-size8.size1{font-size:.3472222222em}.katex .fontsize-ensurer.reset-size8.size2,.katex .katex-sizing.reset-size8.size2{font-size:.4166666667em}.katex .fontsize-ensurer.reset-size8.size3,.katex .katex-sizing.reset-size8.size3{font-size:.4861111111em}.katex .fontsize-ensurer.reset-size8.size4,.katex .katex-sizing.reset-size8.size4{font-size:.5555555556em}.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:.6944444444em}.katex .fontsize-ensurer.reset-size8.size7,.katex .katex-sizing.reset-size8.size7{font-size:.8333333333em}.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:1.4402777778em}.katex .fontsize-ensurer.reset-size8.size11,.katex .katex-sizing.reset-size8.size11{font-size:1.7277777778em}.katex .fontsize-ensurer.reset-size9.size1,.katex .katex-sizing.reset-size9.size1{font-size:.2893518519em}.katex .fontsize-ensurer.reset-size9.size2,.katex .katex-sizing.reset-size9.size2{font-size:.3472222222em}.katex .fontsize-ensurer.reset-size9.size3,.katex .katex-sizing.reset-size9.size3{font-size:.4050925926em}.katex .fontsize-ensurer.reset-size9.size4,.katex .katex-sizing.reset-size9.size4{font-size:.462962963em}.katex .fontsize-ensurer.reset-size9.size5,.katex .katex-sizing.reset-size9.size5{font-size:.5208333333em}.katex .fontsize-ensurer.reset-size9.size6,.katex .katex-sizing.reset-size9.size6{font-size:.5787037037em}.katex .fontsize-ensurer.reset-size9.size7,.katex .katex-sizing.reset-size9.size7{font-size:.6944444444em}.katex .fontsize-ensurer.reset-size9.size8,.katex .katex-sizing.reset-size9.size8{font-size:.8333333333em}.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:1.2002314815em}.katex .fontsize-ensurer.reset-size9.size11,.katex .katex-sizing.reset-size9.size11{font-size:1.4398148148em}.katex .fontsize-ensurer.reset-size10.size1,.katex .katex-sizing.reset-size10.size1{font-size:.2410800386em}.katex .fontsize-ensurer.reset-size10.size2,.katex .katex-sizing.reset-size10.size2{font-size:.2892960463em}.katex .fontsize-ensurer.reset-size10.size3,.katex .katex-sizing.reset-size10.size3{font-size:.337512054em}.katex .fontsize-ensurer.reset-size10.size4,.katex .katex-sizing.reset-size10.size4{font-size:.3857280617em}.katex .fontsize-ensurer.reset-size10.size5,.katex .katex-sizing.reset-size10.size5{font-size:.4339440694em}.katex .fontsize-ensurer.reset-size10.size6,.katex .katex-sizing.reset-size10.size6{font-size:.4821600771em}.katex .fontsize-ensurer.reset-size10.size7,.katex .katex-sizing.reset-size10.size7{font-size:.5785920926em}.katex .fontsize-ensurer.reset-size10.size8,.katex .katex-sizing.reset-size10.size8{font-size:.6943105111em}.katex .fontsize-ensurer.reset-size10.size9,.katex .katex-sizing.reset-size10.size9{font-size:.8331726133em}.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:1.1996142719em}.katex .fontsize-ensurer.reset-size11.size1,.katex .katex-sizing.reset-size11.size1{font-size:.2009646302em}.katex .fontsize-ensurer.reset-size11.size2,.katex .katex-sizing.reset-size11.size2{font-size:.2411575563em}.katex .fontsize-ensurer.reset-size11.size3,.katex .katex-sizing.reset-size11.size3{font-size:.2813504823em}.katex .fontsize-ensurer.reset-size11.size4,.katex .katex-sizing.reset-size11.size4{font-size:.3215434084em}.katex .fontsize-ensurer.reset-size11.size5,.katex .katex-sizing.reset-size11.size5{font-size:.3617363344em}.katex .fontsize-ensurer.reset-size11.size6,.katex .katex-sizing.reset-size11.size6{font-size:.4019292605em}.katex .fontsize-ensurer.reset-size11.size7,.katex .katex-sizing.reset-size11.size7{font-size:.4823151125em}.katex .fontsize-ensurer.reset-size11.size8,.katex .katex-sizing.reset-size11.size8{font-size:.578778135em}.katex .fontsize-ensurer.reset-size11.size9,.katex .katex-sizing.reset-size11.size9{font-size:.6945337621em}.katex .fontsize-ensurer.reset-size11.size10,.katex .katex-sizing.reset-size11.size10{font-size:.8336012862em}.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{display:inline-block;width:.12em}.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{display:inline-block;min-width:1px}.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;display:block;height:inherit;position:absolute;width:100%}.katex svg path{stroke:none}.katex svg{fill-rule:nonzero;fill-opacity:1;stroke-width:1;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1}.katex img{border-style:none;max-height:none;max-width:none;min-height:0;min-width:0}.katex .katex-stretchy{display:block;overflow:hidden;position:relative;width:100%}.katex .katex-stretchy:after,.katex .katex-stretchy:before{content:""}.katex .hide-tail{overflow:hidden;position:relative;width:100%}.katex .halfarrow-left{left:0;overflow:hidden;position:absolute;width:50.2%}.katex .halfarrow-right{overflow:hidden;position:absolute;right:0;width:50.2%}.katex .brace-left{left:0;overflow:hidden;position:absolute;width:25.1%}.katex .brace-center{left:25%;overflow:hidden;position:absolute;width:50%}.katex .brace-right{overflow:hidden;position:absolute;right:0;width:25.1%}.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{border:.04em solid;box-sizing:border-box}.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{border-right:.049em solid;border-top:.049em solid;box-sizing:border-box;margin-right:.03889em}.katex .anglpad{padding:0 .03889em}.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{display:inline-block;position:absolute;right:calc(50% + .3em);text-align:left}.katex .cd-label-right{display:inline-block;left:calc(50% + .3em);position:absolute;text-align:right}.katex-display{display:block;margin:1em 0;text-align:center}.katex-display>.katex{display:block;text-align:center;white-space:nowrap}.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{padding-left:2em;text-align:left}body{counter-reset:katexEqnNo mmlEqnNo}pre code.hljs{display:block;overflow-x:auto;padding:1em}code.hljs{padding:3px 5px}.hljs{color:#abb2bf;background:#282c34}.hljs-comment,.hljs-quote{color:#5c6370;font-style:italic}.hljs-doctag,.hljs-formula,.hljs-keyword{color:#c678dd}.hljs-deletion,.hljs-name,.hljs-section,.hljs-selector-tag,.hljs-subst{color:#e06c75}.hljs-literal{color:#56b6c2}.hljs-addition,.hljs-attribute,.hljs-meta .hljs-string,.hljs-regexp,.hljs-string{color:#98c379}.hljs-attr,.hljs-number,.hljs-selector-attr,.hljs-selector-class,.hljs-selector-pseudo,.hljs-template-variable,.hljs-type,.hljs-variable{color:#d19a66}.hljs-bullet,.hljs-link,.hljs-meta,.hljs-selector-id,.hljs-symbol,.hljs-title{color:#61aeee}.hljs-built_in,.hljs-class .hljs-title,.hljs-title.class_{color:#e6c07b}.hljs-emphasis{font-style:italic}.hljs-strong{font-weight:700}.hljs-link{text-decoration:underline}