:root{color-scheme:light;--ink:#18212b;--muted:#687587;--slate:#7f8ea0;--line:#cbd5de;--paper:#eef2f5;--paper-light:#f7f9fa;--white:#fff;--blue:#3758f9;--blue-soft:#e6ebff;--citron:#d9ff67;--coral:#ff8a72;--violet:#a49adf;--green:#8caf91;--content:760px;--display:"Songti SC", "Noto Serif SC", "Source Han Serif SC", Georgia, serif;--body:"PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", system-ui, sans-serif;--mono:"SFMono-Regular", "Cascadia Code", "JetBrains Mono", Consolas, monospace;font-family:var(--body)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{color:var(--ink);background:var(--paper);-webkit-font-smoothing:antialiased;margin:0;line-height:1.7}button,input{font:inherit}button{color:inherit}a{color:inherit;text-decoration:none}img{max-width:100%;height:auto}[hidden]{display:none!important}::selection{color:var(--ink);background:var(--citron)}:focus-visible{outline:3px solid var(--blue);outline-offset:4px}.site-header,.site-footer,.page-shell{width:min(1380px,100% - 64px);margin-inline:auto}.site-header{border-bottom:1px solid var(--line);justify-content:space-between;align-items:center;min-height:82px;display:flex}.home-page .site-header{justify-content:flex-end}.home-page .site-header .brand{visibility:hidden}.brand strong,.brand small{display:block}.brand strong{font:700 25px/1 var(--display);letter-spacing:-.025em}.brand small{color:var(--muted);font:10px/1 var(--mono);letter-spacing:.12em;text-transform:uppercase;margin-top:7px}.site-header nav{align-items:center;gap:28px;font-size:14px;display:flex}.site-header nav a{color:var(--muted);padding:30px 0 26px;position:relative}.site-header nav a:hover,.site-header nav a.active{color:var(--ink)}.site-header nav a.active:after{background:var(--blue);content:"";height:2px;position:absolute;bottom:-1px;left:0;right:0}.site-header nav .github-link{color:var(--white);background:var(--ink);border-radius:3px;margin-left:4px;padding:10px 15px}.site-header nav .github-link:hover{color:var(--ink);background:var(--citron)}.site-header nav .github-link:after{display:none}.page-shell{min-height:calc(100vh - 180px)}.eyebrow{color:var(--slate);font:700 10px/1.4 var(--mono);letter-spacing:.18em;margin:0 0 16px}.archive-shell{grid-template-columns:220px minmax(0,1fr);gap:50px;display:grid}.knowledge-sidebar{border-right:1px solid var(--line);align-self:start;min-height:calc(100vh - 82px);padding:34px 24px 45px 0;position:sticky;top:0}.side-identity strong,.side-identity small{display:block}.side-mark{height:12px;color:var(--blue);font-size:24px;line-height:8px;display:block}.side-identity strong{font:700 23px/1.1 var(--display);letter-spacing:.01em;margin-top:9px;font-style:italic}.side-identity small{color:var(--muted);font:11px/1.3 var(--mono);margin-top:7px}.side-rule{background:var(--line);height:1px;margin:31px 0 25px}.side-rule-lower{margin-top:31px}.side-label{color:var(--slate);font:9px/1.4 var(--mono);letter-spacing:.15em;margin:0 0 6px}.knowledge-sidebar h2{font:700 27px/1.2 var(--display);margin:0 0 18px}.topic-nav{gap:4px;display:grid}.topic-filter{text-align:left;cursor:pointer;background:0 0;border:0;border-radius:2px;grid-template-columns:23px minmax(0,1fr) auto;align-items:center;gap:8px;width:100%;padding:9px 10px;font-size:13px;display:grid}.topic-filter:hover{background:var(--white)}.topic-filter.active{color:var(--white);background:var(--blue)}.topic-filter small{color:var(--slate);font:10px/1 var(--mono)}.topic-filter.active small{color:#fffc}.topic-glyph{color:var(--blue);text-align:center;font-size:16px}.topic-filter.active .topic-glyph{color:var(--citron)}.side-links{gap:13px;display:grid}.side-links a{color:var(--muted);align-items:center;gap:10px;font-size:12px;display:flex}.side-links a:hover{color:var(--blue)}.side-links span{width:16px;color:var(--blue);text-align:center;font-size:17px}.side-quote{color:var(--muted);font:14px/1.65 var(--display);margin:50px 0 0}.side-quote cite{color:var(--slate);font:10px/1.3 var(--mono);margin-top:9px;font-style:normal;display:block}.side-foot{border-top:1px solid var(--line);gap:6px;margin-top:52px;padding-top:18px;display:grid}.side-foot strong{font:700 16px/1.2 var(--display)}.side-foot span{color:var(--muted);font-size:12px}.archive-main{min-width:0;padding:34px 0 90px}.archive-intro{grid-template-columns:minmax(0,1fr) 180px;align-items:end;gap:42px;padding:14px 0 38px;display:grid}.archive-intro h1{font:700 clamp(43px, 6vw, 73px)/1.04 var(--display);letter-spacing:-.06em;margin:0}.archive-intro h1 span{display:inline-block;position:relative}.archive-intro h1 span:after{background:var(--citron);content:"";z-index:-1;height:8px;position:absolute;bottom:2px;left:0;right:0}.archive-intro h2{color:var(--slate);font:700 22px/1.3 var(--display);margin:26px 0 11px}.intro-copy{color:#5d6b7c;max-width:760px;margin:0;font-size:15px}.intro-note{color:var(--ink);font:700 20px/1.5 var(--display);align-self:start;margin:3px 0 0;transform:rotate(-3deg)}.intro-note:after{background:var(--ink);content:"";width:90px;height:1px;margin:10px 0 0 auto;display:block;transform:rotate(-4deg)}.intro-note span{color:var(--slate);font:10px/1.6 var(--mono);letter-spacing:.1em;margin-top:25px;display:block}.archive-stats{border:1px solid var(--line);background:var(--white);grid-template-columns:repeat(3,1fr) 1.1fr;display:grid}.archive-stats>div{border-right:1px solid var(--line);grid-template-columns:33px auto 1fr;align-items:center;gap:10px;min-height:104px;padding:17px;display:grid}.archive-stats>div:last-child{border-right:0}.archive-stats .stat-icon{color:var(--blue);font-size:27px;line-height:1}.archive-stats strong{font:700 28px/1 var(--display);white-space:nowrap}.archive-stats>div>span:last-child{color:var(--ink);font-size:12px;line-height:1.4}.archive-stats>div:nth-child(3)>span:last-child{display:none}.archive-stats>div:nth-child(3) strong{font-size:21px}.archive-stats small{color:var(--muted);font:10px/1.4 var(--mono)}.archive-stats .stat-motto{color:var(--ink);font:700 17px/1.35 var(--display);padding-left:28px;display:block}.stat-motto small{margin-top:6px;display:block}.card-section,.notes-section{padding-top:43px}.card-section-heading{justify-content:space-between;align-items:end;gap:20px;margin-bottom:20px;display:flex}.card-section-heading h2{font:700 29px/1.15 var(--display);margin:0}.card-section-heading p{color:var(--muted);margin:7px 0 0;font-size:12px}.card-section-heading>a{color:var(--blue);white-space:nowrap;font-size:12px}.card-section-heading>a:hover{color:var(--ink)}.card-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:15px;display:grid}.knowledge-card{background:var(--white);border:1px solid var(--line);flex-direction:column;min-height:268px;padding:39px 20px 18px;transition:transform .2s,border-color .2s;display:flex;position:relative}.knowledge-card:hover{border-color:var(--blue);transform:translateY(-4px)}.file-tab{min-width:108px;color:var(--white);background:var(--blue);clip-path:polygon(0 0,100% 0,90% 100%,0 100%);font:11px/1 var(--mono);padding:7px 18px 8px;position:absolute;top:-1px;left:15px}.tab-yellow .file-tab{color:var(--ink);background:var(--citron)}.tab-slate .file-tab{background:#93a0ad}.tab-coral .file-tab{background:var(--coral)}.tab-green .file-tab{background:var(--green)}.tab-violet .file-tab{background:var(--violet)}.card-number{color:var(--slate);font:10px/1 var(--mono);position:absolute;top:17px;right:18px}.knowledge-card h3{font:700 20px/1.3 var(--display);margin:17px 0 10px}.knowledge-card p{color:var(--muted);margin:0 0 17px;font-size:12px;line-height:1.65}.knowledge-card ul{flex-wrap:wrap;gap:6px;margin:auto 0 13px;padding:0;list-style:none;display:flex}.knowledge-card li{color:var(--muted);background:var(--paper);font:9px/1.2 var(--mono);padding:4px 7px}.knowledge-card time{color:var(--slate);font:10px/1.2 var(--mono)}.card-arrow{color:var(--ink);font-size:18px;position:absolute;bottom:15px;right:18px}.notes-layout{grid-template-columns:minmax(0,1.6fr) minmax(230px,.7fr);gap:16px;display:grid}.notes-list{background:var(--white);border:1px solid var(--line);margin:0;padding:0;list-style:none}.notes-list li{border-bottom:1px solid var(--line)}.notes-list li:last-child{border-bottom:0}.notes-list a{grid-template-columns:31px minmax(0,1fr) auto 18px;align-items:center;gap:10px;min-height:68px;padding:10px 18px;display:grid}.notes-list a:hover{background:var(--paper-light)}.note-index{color:var(--slate);font:10px/1 var(--mono)}.note-main strong,.note-main small{display:block}.note-main strong{font:700 14px/1.35 var(--display);text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.note-main small{color:var(--muted);text-overflow:ellipsis;white-space:nowrap;font-size:10px;overflow:hidden}.notes-list time{color:var(--slate);font:9px/1 var(--mono)}.note-arrow{color:var(--blue);font-size:17px}.currently-card{background:var(--ink);color:var(--white);padding:24px;position:relative;overflow:hidden}.currently-card:after{content:"";border:1px solid #d9ff6759;border-radius:50%;width:130px;height:130px;position:absolute;bottom:-28px;right:-30px}.currently-card .eyebrow{color:var(--citron)}.currently-card h3{font:700 26px/1.12 var(--display);margin:28px 0 17px}.currently-card>p:not(.eyebrow){color:#b9c3d0;font-size:12px}.reading-status{color:#e8edf2;border-top:1px solid #394653;align-items:start;gap:10px;margin:25px 0;padding-top:16px;font-size:11px;display:flex}.reading-check{height:20px;color:var(--ink);background:var(--citron);flex:0 0 20px;place-items:center;font-weight:700;display:grid}.reading-status small{color:#94a3b2}.currently-card>a{z-index:1;color:var(--citron);font-size:12px;font-weight:700;position:relative}.archive-quote{color:var(--ink);border-left:3px solid var(--blue);background:var(--blue-soft);font:16px/1.45 var(--display);justify-content:space-between;align-items:center;gap:20px;margin:45px 0 0;padding:18px 20px;display:flex}.archive-quote cite{color:var(--muted);font:10px/1 var(--mono);white-space:nowrap;font-style:normal}.archive-quote>span{color:var(--slate);font:8px/1.5 var(--mono);letter-spacing:.1em;text-align:right}.page-shell>:not(.archive-shell){margin-top:72px}.page-heading{max-width:760px;margin-bottom:54px}.page-heading h1,.simple-page h1,.article-header h1{font-family:var(--display);letter-spacing:-.035em;margin:0;font-weight:700;line-height:1.2}.page-heading h1,.simple-page h1{font-size:clamp(38px,6vw,60px)}.page-heading>p:last-child,.simple-page p{color:var(--muted);font-size:17px}.post-grid{grid-template-columns:repeat(2,1fr);gap:14px;display:grid}.post-card{background:var(--white);border:1px solid var(--line);flex-direction:column;min-height:280px;padding:28px;transition:transform .2s,border-color .2s;display:flex}.post-card:hover{border-color:var(--blue);transform:translateY(-3px)}.post-card.featured{background:var(--ink);min-height:330px;color:var(--white);border:0}.post-card-meta{color:var(--muted);font:11px/1.4 var(--mono);gap:14px;display:flex}.featured .post-card-meta{color:#b7c3d0}.post-card h2{font:700 24px/1.35 var(--display);margin:22px 0 14px}.post-card h2 a:hover{color:var(--blue)}.post-card>p{color:var(--muted);margin:0 0 28px}.featured>p{color:#c7d1dc}.post-card-footer{justify-content:space-between;align-items:end;gap:20px;margin-top:auto;display:flex}.post-card-footer ul{flex-wrap:wrap;gap:8px;margin:0;padding:0;list-style:none;display:flex}.post-card-footer li{color:var(--muted);background:var(--paper);padding:4px 9px;font-size:11px}.featured .post-card-footer li{color:#d9e2ea;background:#2c3744}.read-link{color:var(--blue);white-space:nowrap;font-weight:700}.featured .read-link{color:var(--citron)}.archive-list section{border-top:1px solid var(--line);grid-template-columns:100px 1fr;padding:24px 0 44px;display:grid}.archive-list h2{font:700 28px/1 var(--display);margin:4px 0}.archive-list ol{margin:0;padding:0;list-style:none}.archive-list li{border-bottom:1px solid var(--line);grid-template-columns:70px 1fr auto;gap:20px;padding:13px 0;display:grid}.archive-list time,.archive-list li>span{color:var(--muted);font:11px/1.5 var(--mono)}.archive-list a:hover{color:var(--blue)}.tag-cloud{flex-wrap:wrap;gap:12px;display:flex}.tag-cloud a{background:var(--white);border:1px solid var(--line);align-items:center;gap:12px;padding:12px 16px;display:flex}.tag-cloud a:hover{border-color:var(--blue)}.tag-cloud small{min-width:24px;height:24px;color:var(--ink);background:var(--citron);border-radius:50%;place-items:center;display:grid}.category-grid{grid-template-columns:repeat(3,1fr);gap:16px;display:grid}.category-grid a{background:var(--white);border:1px solid var(--line);flex-direction:column;gap:8px;padding:28px;display:flex}.category-grid a:hover{border-color:var(--blue)}.category-grid span{color:var(--muted);font-size:13px}.article-layout{--toc-width:220px;--article-gap:clamp(24px, 5vw, 56px);max-width:1040px;margin-inline:auto}.article-header{width:100%;max-width:none;margin:0 0 58px}.category-pill{color:var(--ink);background:var(--citron);margin-bottom:22px;padding:6px 11px;font-size:13px;font-weight:700;display:inline-block}.article-header h1{font-size:clamp(38px,6vw,64px)}.article-header>p{color:var(--muted);margin:24px 0 16px;font-size:18px}.article-meta{color:var(--muted);font:11px/1.5 var(--mono);flex-wrap:wrap;gap:9px;display:flex}.article-grid{grid-template-columns:minmax(0, var(--toc-width)) minmax(0, 1fr);gap:var(--article-gap);grid-template-areas:"toc content";align-items:start;display:grid}.article-content{background:var(--white);border:1px solid var(--line);grid-area:content;min-width:0;padding:clamp(26px,5vw,54px)}.article-content h2{font:700 28px/1.35 var(--display);margin:2.4em 0 .7em}.article-content h2:first-child{margin-top:0}.article-content h3{margin:2em 0 .6em;font-size:21px}.article-content p,.article-content li{font-size:17px}.article-content a{color:var(--blue);text-underline-offset:3px;text-decoration:underline #aab7ff}.article-content blockquote,.article-content .note-summary{background:var(--blue-soft);border-left:3px solid var(--blue);margin:1.8em 0;padding:14px 20px}.article-content .formula,.article-content pre{font-family:var(--mono);background:#e5eaf0;padding:14px 18px;overflow-x:auto}.article-content .flow{text-align:center;background:var(--paper);border:1px solid var(--line);padding:14px}.article-content table{border-collapse:collapse;width:100%;display:block;overflow-x:auto}.article-content th,.article-content td{text-align:left;border:1px solid var(--line);padding:10px 14px}.article-content th{background:var(--paper)}.toc{grid-area:toc;font-size:13px;position:sticky;top:24px}.toc strong{border-bottom:1px solid var(--line);padding-bottom:10px;display:block}.toc ol{margin:10px 0 0;padding:0;list-style:none}.toc li{margin:8px 0}.toc .depth-3{padding-left:12px}.toc a{color:var(--muted)}.toc a:hover{color:var(--blue)}.article-footer{width:min(var(--content), calc(100% - var(--toc-width) - var(--article-gap)));max-width:var(--content);margin-left:calc(var(--toc-width) + var(--article-gap));color:var(--muted);justify-content:space-between;padding:24px 0;font-size:13px;display:flex}.article-footer a{color:var(--blue)}.simple-page{max-width:var(--content);background:var(--white);border:1px solid var(--line);padding:clamp(32px,6vw,64px)}.not-found{text-align:center;max-width:620px;margin-inline:auto}.not-found>span{color:var(--coral);font:700 86px/1 var(--display)}.not-found h1{font-size:32px}.not-found p{color:var(--muted)}.not-found a{color:var(--blue);font-weight:700}.site-footer{color:var(--muted);border-top:1px solid var(--line);font:10px/1.5 var(--mono);gap:24px;padding:30px 0 50px;display:flex}.site-footer span{margin-right:auto}.site-footer a:hover{color:var(--blue)}@media (width<=1100px){.archive-shell{grid-template-columns:190px minmax(0,1fr);gap:30px}.archive-stats{grid-template-columns:repeat(2,1fr)}.archive-stats>div:nth-child(2){border-right:0}.archive-stats>div:nth-child(-n+2){border-bottom:1px solid var(--line)}.archive-stats .stat-motto{grid-column:span 2}.archive-stats>div:last-child{border-right:0}.card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}@media (width<=760px){.site-header,.site-footer,.page-shell{width:min(100% - 36px,760px)}.home-page .site-header{justify-content:space-between}.home-page .site-header .brand{visibility:visible}.archive-shell{display:block}.knowledge-sidebar{border-right:0;border-bottom:1px solid var(--line);min-height:0;padding:26px 0 20px;position:relative}.side-identity{align-items:baseline;gap:10px;display:flex}.side-mark{display:none}.side-identity small{margin:0}.knowledge-sidebar h2,.side-label,.side-rule,.side-links,.side-quote,.side-foot{display:none}.topic-nav{gap:7px;margin-top:19px;padding-bottom:2px;display:flex;overflow-x:auto}.topic-filter{border:1px solid var(--line);flex:none;grid-template-columns:auto auto;width:auto;padding:8px 11px}.topic-filter .topic-glyph{display:none}.archive-main{padding-top:42px}.archive-intro{grid-template-columns:1fr;gap:20px;padding-top:0}.archive-intro h1{font-size:clamp(41px,12vw,66px)}.intro-note{display:none}.archive-stats{grid-template-columns:repeat(2,1fr)}.archive-stats>div{min-height:90px;padding:13px}.archive-stats strong{font-size:23px}.archive-stats>div:nth-child(2){border-right:0}.archive-stats .stat-motto{grid-column:span 2}.card-grid,.notes-layout{grid-template-columns:1fr}.currently-card{min-height:260px}.archive-quote{flex-direction:column;align-items:start}.archive-quote>span{text-align:left}.post-grid,.category-grid{grid-template-columns:1fr}.article-layout{--article-gap:0px}.article-header,.article-footer{width:auto;max-width:none;margin-left:0}.article-grid{grid-template-columns:1fr;grid-template-areas:"content"}.toc{display:none}}@media (width<=560px){.site-header{padding-top:20px;display:block}.site-header nav{justify-content:space-between;gap:12px;margin-top:10px}.site-header nav a{padding:12px 0;font-size:13px}.site-header nav .github-link,.brand small{display:none}.archive-stats>div{grid-template-columns:25px auto;gap:7px}.archive-stats>div>span:last-child{grid-column:2}.archive-stats .stat-icon{font-size:22px}.archive-stats strong{font-size:20px}.archive-stats .stat-motto{padding:18px;display:block}.notes-list a{grid-template-columns:24px minmax(0,1fr) 18px}.notes-list time{display:none}.note-main strong,.note-main small{white-space:normal}.page-shell>:not(.archive-shell){margin-top:46px}.post-card,.post-card.featured{min-height:0;padding:24px}.post-card-footer{flex-direction:column;align-items:start}.archive-list section{grid-template-columns:1fr}.archive-list li{grid-template-columns:52px 1fr;gap:12px}.archive-list li>span{display:none}.article-content{padding:24px 20px}.article-content p,.article-content li{font-size:16px}.article-header h1{font-size:38px}.site-footer{flex-wrap:wrap}}@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,:before,:after{transition-duration:.01ms!important}}