:root{
--paper:#fdf3d9; --cream:#f7e9c8; --soft:#f9edcd; --card:#fff9e6;
--navy:#17154f; --deep:#080625; --ink:#17143e;
--magenta:#ed2863; --teal:#00a19a; --yellow:#ffd21c; --cobalt:#303fbd; --orange:#ff6d1f;
--line:rgba(23,21,79,.26); --line-soft:rgba(23,21,79,.14);
--mono:"IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
--sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
body{background:var(--paper);color:var(--ink);font-family:var(--sans);font-size:15px;line-height:1.75;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
.mono{font-family:var(--mono);letter-spacing:1.2px;text-transform:uppercase;font-size:11px}
.wrap{max-width:1080px;margin:0 auto;padding:0 24px}

.top{background:var(--deep);color:var(--yellow)}
.top .wrap{display:flex;align-items:center;justify-content:space-between;height:52px;gap:16px}
.logo{font-family:var(--mono);font-size:13px;letter-spacing:2px;color:var(--yellow);font-weight:500}
.logo b{color:var(--teal)}
.nav{display:flex;gap:18px}
.nav a{font-family:var(--mono);font-size:11px;letter-spacing:1.4px;color:rgba(253,243,217,.72);text-transform:uppercase}
.nav a:hover,.nav a.on{color:var(--yellow)}

header.hero{padding:44px 0 30px;border-bottom:1px solid var(--line)}
h1{font-size:34px;line-height:1.25;letter-spacing:-1.2px;font-weight:700}
.lead{color:rgba(23,21,79,.62);margin-top:10px;max-width:640px}
.meta-row{display:flex;gap:10px;flex-wrap:wrap;margin-top:18px}
.chip{font-family:var(--mono);font-size:10px;letter-spacing:1px;padding:3px 8px;border:1px solid var(--deep);border-radius:2px;background:var(--yellow);color:var(--deep)}
.chip.t{background:var(--teal)}.chip.m{background:var(--magenta);color:var(--paper)}
.chip.g{background:transparent;color:var(--navy)}

section{padding:34px 0}
.sec-h{display:flex;align-items:center;gap:12px;margin-bottom:18px}
.sec-h .mono{color:rgba(23,21,79,.5);white-space:nowrap}
.sec-h .rule{flex:1;height:1px;background:var(--line-soft)}

.list{display:flex;flex-direction:column;gap:12px}
.item{display:block;background:var(--card);border:1px solid var(--line);border-radius:3px;padding:16px 18px;box-shadow:3px 3px 0 var(--teal);transition:transform .13s ease,box-shadow .13s ease}
.item:hover{transform:translate(-2px,-2px);box-shadow:5px 5px 0 var(--teal)}
.item:nth-child(3n+2){box-shadow:3px 3px 0 var(--magenta)}
.item:nth-child(3n+2):hover{box-shadow:5px 5px 0 var(--magenta)}
.item:nth-child(3n){box-shadow:3px 3px 0 var(--yellow)}
.item:nth-child(3n):hover{box-shadow:5px 5px 0 var(--yellow)}
.item .date{font-family:var(--mono);font-size:11px;color:rgba(23,21,79,.5);letter-spacing:.6px}
.item h3{font-size:17px;letter-spacing:-.4px;margin:4px 0 6px;font-weight:700}
.item p{font-size:13.5px;color:rgba(23,21,79,.62);line-height:1.65}
.item .tags{display:flex;gap:6px;margin-top:10px;flex-wrap:wrap}

article{padding:40px 0 20px}
article h1{font-size:30px;letter-spacing:-.9px;margin-bottom:12px}
article .a-meta{font-family:var(--mono);font-size:11px;color:rgba(23,21,79,.5);letter-spacing:.8px;padding-bottom:20px;border-bottom:1px solid var(--line);display:flex;gap:14px;flex-wrap:wrap}
article h2{font-size:21px;letter-spacing:-.4px;margin:38px 0 12px;padding-left:10px;border-left:4px solid var(--teal)}
article h3{font-size:17px;margin:26px 0 10px;letter-spacing:-.2px}
article p{margin:14px 0}
article ul,article ol{margin:14px 0 14px 22px}
article li{margin:6px 0}
article strong{font-weight:700}
article a{color:var(--cobalt);border-bottom:1px solid rgba(48,63,189,.35)}
article a:hover{background:rgba(255,210,28,.5)}
article blockquote{border-left:4px solid var(--magenta);background:var(--card);padding:10px 16px;margin:18px 0;color:rgba(23,21,79,.78)}
article code{font-family:var(--mono);font-size:12.5px;background:rgba(23,21,79,.07);border:1px solid var(--line-soft);border-radius:2px;padding:1px 5px}
article pre{background:var(--deep);color:#ffe9a8;border-radius:3px;padding:16px 18px;overflow-x:auto;margin:18px 0;box-shadow:4px 4px 0 var(--teal)}
article pre code{background:none;border:0;padding:0;color:inherit;font-size:12.5px;line-height:1.85}
article table{width:100%;border-collapse:collapse;margin:18px 0;font-size:13.5px}
article th,article td{border:1px solid var(--line);padding:8px 12px;text-align:left}
article th{background:var(--cream);font-family:var(--mono);font-size:11px;letter-spacing:1px;text-transform:uppercase}
article hr{border:0;border-top:1px dashed var(--line);margin:30px 0}

.note-foot{margin:36px 0 10px;border:1px solid var(--line);background:var(--card);border-radius:3px;padding:14px 16px;font-size:13px;color:rgba(23,21,79,.7);box-shadow:3px 3px 0 var(--cobalt)}
.back{display:inline-block;margin:18px 0 0;font-family:var(--mono);font-size:11px;letter-spacing:1.4px;color:var(--cobalt)}

footer{margin-top:44px;border-top:1px solid var(--line);background:var(--cream)}
footer .wrap{padding:22px 24px 28px}
.f-decl{font-size:12.5px;color:rgba(23,21,79,.62);line-height:1.9;max-width:680px}
.f-legal{display:flex;gap:16px;flex-wrap:wrap;margin-top:14px;font-family:var(--mono);font-size:12px;letter-spacing:.8px;color:rgba(23,21,79,.6)}
.f-legal a:hover{color:var(--magenta);border-bottom:1px solid var(--magenta)}
.todo{color:var(--magenta);border-bottom:1px dashed var(--magenta)}
.copy{margin-top:12px;font-family:var(--mono);font-size:11px;color:rgba(23,21,79,.42);letter-spacing:.6px}

.shell{display:grid;grid-template-columns:196px minmax(0,1fr);gap:38px;max-width:1080px;margin:0 auto;padding:0 24px}
.main{min-width:0;max-width:760px}
.side{position:sticky;top:16px;align-self:start;max-height:calc(100vh - 32px);overflow:auto;padding:26px 0 36px;display:flex;flex-direction:column}
.sb{margin-bottom:20px}
.sb-cap{display:flex;justify-content:space-between;gap:8px;color:rgba(23,21,79,.45);padding-bottom:7px;border-bottom:1px solid var(--line-soft);margin-bottom:7px}
.sb-grow{margin-bottom:8px}
.sb-g{display:flex;justify-content:space-between;align-items:center;gap:8px;padding:5px 7px;font-size:13px;font-weight:700;letter-spacing:-.2px;border-radius:2px;transition:background .12s}
.sb-g:hover{background:var(--card);box-shadow:2px 2px 0 var(--teal)}
.sb-g em,.sb-c em,.sb-i em{font-family:var(--mono);font-size:10px;font-style:normal;color:rgba(23,21,79,.42);letter-spacing:.4px;font-weight:400}
.sb-kids{border-left:1px solid var(--line);margin-left:9px;padding-left:3px}
.sb-c{display:flex;justify-content:space-between;align-items:center;gap:8px;padding:4px 8px;font-size:12.5px;color:rgba(23,21,79,.74);border-radius:2px}
.sb-c:hover{background:var(--card);color:var(--ink);box-shadow:2px 2px 0 var(--magenta)}
.sb-c.zero{color:rgba(23,21,79,.3)}
.sb-i{display:flex;justify-content:space-between;padding:5px 7px;font-size:13px;border-radius:2px}
.sb-i:hover{background:var(--card)}
.sb-g.on{background:var(--card);box-shadow:2px 2px 0 var(--teal)}
.sb-c.on{background:var(--card);color:var(--ink);font-weight:700;box-shadow:2px 2px 0 var(--magenta)}
.sb-foot{margin-top:auto;border-top:1px dashed var(--line);padding-top:14px}
.crumb{font-family:var(--mono);font-size:11px;letter-spacing:1.2px;color:var(--cobalt);margin-bottom:8px;display:flex;gap:2px;align-items:center}
.crumb i{font-style:normal;opacity:.45;margin:0 5px}
.crumb a:hover{color:var(--magenta)}
.i-top{display:flex;justify-content:space-between;align-items:center;gap:8px;margin-bottom:1px}
.chip.cat{background:transparent;border-color:var(--line);color:var(--cobalt)}
.a-cat{font-size:11px;color:var(--cobalt);letter-spacing:1.4px;margin-bottom:10px;text-transform:uppercase}
.a-cat a:hover{border-bottom:1px solid var(--cobalt)}
.empty{border:1px dashed var(--line);border-radius:3px;padding:34px;text-align:center;color:rgba(23,21,79,.45);font-family:var(--mono);font-size:12px;letter-spacing:1px}
@media(max-width:640px){
.wrap{padding:0 16px}
h1{font-size:25px;letter-spacing:-.6px}
header.hero{padding:28px 0 22px}
.top .wrap{height:auto;padding:12px 16px;flex-wrap:wrap;gap:10px}
.nav{gap:14px}
.shell{grid-template-columns:1fr;gap:0;padding:0 16px}
.side{position:static;max-height:none;overflow:visible;flex-direction:row;flex-wrap:wrap;gap:6px;padding:12px 0 6px;border-bottom:1px solid var(--line);margin-bottom:10px}
.sb{margin:0}
.sb:nth-child(2),.sb-cap,.sb-kids,.sb-foot{display:none}
.sb-g{border:1px solid var(--line);padding:3px 8px;font-size:12px;font-weight:500}
.sb-g em{display:none}
.main{max-width:none}
.main .hero,.main section,.main article{padding-left:0;padding-right:0}
article h1{font-size:23px}
article pre{padding:12px 14px;font-size:12px}
}