:root{--bg:#0b0e1a;--s:#131830;--t:#d8def0;--m:#8a93b2;--a:#5ec8ff;--b:#a78bfa;--l:rgba(255,255,255,.09)}
*{box-sizing:border-box}html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--t);font:17px/1.7 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif}
a{color:var(--a);text-decoration:none}a:hover{text-decoration:underline}
:focus-visible{outline:2px solid var(--b);outline-offset:3px}
.bg{position:fixed;inset:0;z-index:-1;background:radial-gradient(40vw 40vw at 15% 10%,rgba(94,200,255,.16),transparent 70%),radial-gradient(45vw 45vw at 85% 20%,rgba(167,139,250,.17),transparent 70%),radial-gradient(40vw 40vw at 50% 100%,rgba(56,189,160,.10),transparent 70%);animation:drift 24s ease-in-out infinite alternate}
.bg::after{content:"";position:absolute;inset:0;background-image:linear-gradient(var(--l) 1px,transparent 1px),linear-gradient(90deg,var(--l) 1px,transparent 1px);background-size:56px 56px;opacity:.35;-webkit-mask-image:radial-gradient(circle at 50% 30%,#000,transparent 75%);mask-image:radial-gradient(circle at 50% 30%,#000,transparent 75%)}
@keyframes drift{to{transform:translate3d(-2%,3%,0) scale(1.08)}}
#bar{position:fixed;top:0;left:0;height:3px;width:0;background:linear-gradient(90deg,var(--a),var(--b));z-index:20}
.top{position:sticky;top:0;z-index:10;display:flex;align-items:center;justify-content:space-between;padding:12px max(20px,calc(50% - 560px));background:rgba(11,14,26,.72);backdrop-filter:blur(14px);border-bottom:1px solid var(--l)}
.logo{display:flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:18px}.logo:hover{text-decoration:none}
nav a{color:var(--m);margin-left:22px;font-size:15px}nav a:hover,nav a[aria-current]{color:#fff;text-decoration:none}
#menu{display:none;background:none;border:1px solid var(--l);color:#fff;border-radius:8px;padding:4px 10px;font-size:18px}
.wrap,.art{max-width:1120px;margin:0 auto;padding:40px 20px 70px}.art{max-width:780px}
h1{font-size:clamp(30px,5vw,50px);line-height:1.15;margin:.2em 0 .5em;color:#fff;letter-spacing:-.02em}
h2{font-size:26px;margin:2em 0 .8em;color:#fff}h3{margin:.3em 0;color:#fff;font-size:19px;line-height:1.3}
.hero{display:grid;grid-template-columns:1.05fr 1fr;gap:40px;align-items:center;min-height:62vh}
.sub{color:var(--m);font-size:19px;max-width:34em}
.btn{display:inline-block;padding:11px 22px;border-radius:10px;background:linear-gradient(135deg,var(--a),var(--b));color:#0b0e1a;font-weight:600;margin:6px 8px 0 0;transition:transform .2s,box-shadow .2s}
.btn:hover{text-decoration:none;transform:translateY(-2px);box-shadow:0 8px 28px rgba(94,200,255,.3)}
.btn.ghost{background:transparent;color:#fff;border:1px solid var(--l)}
.term{background:rgba(8,10,20,.85);border:1px solid var(--l);border-radius:14px;box-shadow:0 0 60px rgba(94,200,255,.15),0 20px 50px rgba(0,0,0,.5)}
.dots{display:flex;gap:7px;padding:12px 14px;border-bottom:1px solid var(--l)}.dots i{width:11px;height:11px;border-radius:50%;background:#3a4166}
.term pre{margin:0;padding:18px;min-height:230px;font:14px/1.7 ui-monospace,"JetBrains Mono",Menlo,Consolas,monospace;color:#9fe3ff;white-space:pre-wrap}
.term pre b{color:var(--b);font-weight:400}.term pre::after{content:"▍";animation:bl 1s steps(2) infinite}@keyframes bl{50%{opacity:0}}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(310px,1fr));gap:18px}
.card{--mx:50%;--my:50%;position:relative;display:block;padding:22px;border-radius:14px;background:var(--s);border:1px solid var(--l);color:var(--t);overflow:hidden;transition:border-color .25s}
.card::before{content:"";position:absolute;inset:0;background:radial-gradient(260px circle at var(--mx) var(--my),rgba(94,200,255,.16),transparent 70%);opacity:0;transition:opacity .25s}
.card:hover{text-decoration:none;border-color:rgba(94,200,255,.5)}.card:hover::before{opacity:1}
.card>*{position:relative}.card p{color:var(--m);font-size:15px;margin:.4em 0 .9em}.card time{color:var(--m);font-size:13px}
.tag{display:inline-block;padding:2px 10px;border-radius:99px;font-size:13px;background:rgba(167,139,250,.15);color:#c9b8ff}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin:14px 0 24px}
.chip{background:var(--s);border:1px solid var(--l);color:var(--m);padding:6px 14px;border-radius:99px;font:inherit;font-size:14px;cursor:pointer}
.chip.on,.chip:hover{color:#fff;border-color:var(--a)}
#q{width:100%;max-width:460px;padding:12px 16px;border-radius:10px;border:1px solid var(--l);background:var(--s);color:#fff;font:inherit}
.meta{display:flex;gap:12px;align-items:center;color:var(--m);font-size:14px}.lead{font-size:20px;color:var(--m)}
pre{position:relative;background:#080a15;border:1px solid var(--l);border-left:3px solid var(--a);border-radius:10px;padding:18px;overflow-x:auto;font:14px/1.65 ui-monospace,Menlo,Consolas,monospace;color:#cfe9ff}
.cp{position:absolute;top:8px;right:8px;background:var(--s);border:1px solid var(--l);color:var(--m);border-radius:6px;padding:3px 10px;font-size:12px;cursor:pointer}
.pn{display:flex;justify-content:space-between;gap:20px;margin-top:40px;font-size:15px}
.list{padding-left:20px}.list li{margin:.4em 0}
footer{border-top:1px solid var(--l);color:var(--m);font-size:14px}footer .wrap{padding:24px 20px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px}footer p{margin:0}
@media(max-width:820px){.hero{grid-template-columns:1fr;min-height:0}#menu{display:block}nav{display:none;position:absolute;top:100%;left:0;right:0;background:var(--bg);padding:10px 20px;border-bottom:1px solid var(--l)}nav.open{display:block}nav a{display:block;margin:0;padding:10px 0}}
@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}html{scroll-behavior:auto}}