:root{--bg:#0a0f1c;--fg:#e6ecff;--muted:#9bb0ff;--card:#0f1630aa;--edge:#1d2340}
*{box-sizing:border-box}html,body{margin:0;padding:0;background:radial-gradient(1000px 600px at 10% -10%,rgba(0,227,255,.2),transparent),linear-gradient(120deg,#06102a,#0a0f1c 50%,#0c1022);color:var(--fg);font:16px/1.6 system-ui,Segoe UI,Inter,Arial}
.container{max-width:1100px;margin:0 auto;padding:24px}
.site-header{position:sticky;top:0;backdrop-filter:blur(12px);border-bottom:1px solid var(--edge);z-index:10}
.nav{display:flex;justify-content:space-between;align-items:center;gap:16px}
.logo{width:32px;height:32px;border-radius:10px;display:inline-grid;place-items:center;background:conic-gradient(#7f7fff,#00e3ff,#7cffd4,#7f7fff);color:#081223;font-weight:800}
.hero{padding:56px 0}.hero h1{font-size:40px;margin:0}.lead{color:var(--muted)}
.card{background:var(--card);border:1px solid var(--edge);border-radius:16px;padding:20px;box-shadow:0 10px 30px rgba(0,0,0,.25)}
.grid{display:grid;gap:20px}.grid-3{grid-template-columns:repeat(3,1fr)}@media(max-width:900px){.grid-3{grid-template-columns:1fr}}
.table{width:100%;border-collapse:collapse}.table th,.table td{padding:12px;border-bottom:1px solid var(--edge);text-align:left}
.toc{position:sticky;top:80px;background:#0b1530;border:1px solid var(--edge);border-radius:12px;padding:12px}
a{color:#7cffd4;text-decoration:none}a:hover{text-decoration:underline}
.site-footer{margin-top:40px;border-top:1px solid var(--edge);padding:24px 0}.muted{color:#9bb0ff}.small{font-size:12px}
.post-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:20px}