:root{--bg:#06111f;--panel:#fff;--ink:#000;--blue:#2563eb;--cyan:#00bfff;--green:#39ff14;--hot:#ff1493;--gold:#facc15;--violet:#bf00ff;--line:#dbeafe}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,Arial;background:radial-gradient(circle at 10% 4%,rgba(0,191,255,.22),transparent 28%),radial-gradient(circle at 92% 0%,rgba(255,20,147,.18),transparent 26%),#06111f;color:#000}
a{color:var(--blue);text-decoration:none}a:hover{text-decoration:underline}
header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.96);border-bottom:3px solid var(--gold);backdrop-filter:blur(10px)}
.wrap{max-width:1140px;margin:0 auto;padding:18px}
.topbar{display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap}
.brand h1{margin:0;font-size:20px;letter-spacing:.06em}.brand p{margin:3px 0 0;font-size:12px}
nav{display:flex;gap:8px;flex-wrap:wrap}nav a,.btn{display:inline-flex;border:3px solid var(--hot);border-radius:12px;padding:8px 11px;background:#fff;color:#000;font-weight:800;font-size:12px;text-decoration:none}
main{padding:24px 18px}
.panel,.chapter,.side{background:#fff;border-radius:18px;padding:20px;margin-bottom:18px}
.panel{border:3px solid var(--green);box-shadow:0 0 16px rgba(57,255,20,.52)}
.chapter{border:4px solid var(--hot);box-shadow:0 0 12px rgba(255,20,147,.42)}
.side{border:3px solid var(--cyan);background:#f8fafc}
h1,h2,h3{line-height:1.18}h1{font-size:34px;margin:0 0 8px}h2{font-size:24px;margin:0 0 12px}h3{font-size:17px;margin:16px 0 8px}
p,li{font-size:14px;line-height:1.68}.small{font-size:12px;line-height:1.48}.sub{font-size:14px;line-height:1.65}
.toc{columns:2;column-gap:28px}@media(max-width:900px){.toc{columns:1}}
.callout{border-left:5px solid var(--blue);padding:12px;background:#eff6ff;border-radius:12px}
.quote{border-left:5px solid var(--green);padding:12px;background:#ecfdf5;border-radius:12px;font-weight:700}
table{width:100%;border-collapse:collapse;margin:12px 0}th,td{border:1px solid #cbd5e1;padding:9px;text-align:left;vertical-align:top;font-size:13px;line-height:1.5}th{background:#f8fafc}
pre{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;background:#f8fafc;border:1px solid #cbd5e1;border-radius:12px;padding:11px;font-size:12px;overflow:auto;white-space:pre-wrap}
.tagrow{display:flex;gap:8px;flex-wrap:wrap}.tag{border:2px solid #7fff00;border-radius:999px;padding:4px 8px;font-size:11px;font-weight:800;background:#f8fafc}
footer{border-top:3px solid var(--line);background:rgba(255,255,255,.92);font-size:12px}
@media print{header,nav{display:none}.panel,.chapter,.side{box-shadow:none;border:1px solid #999}body{background:#fff}}