:root{--v:#6d28d9;--ink:#1f1147;--muted:#5b5670;--bg:#faf8ff}
*{box-sizing:border-box}body{margin:0;font:17px/1.6 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;color:var(--ink);background:var(--bg)}
header{background:linear-gradient(135deg,#8b5cf6,#5b21b6);color:#fff;padding:28px 20px}
header .in,main{max-width:760px;margin:0 auto}header a{color:#fff;text-decoration:none;font-weight:700;display:flex;align-items:center;gap:12px;font-size:22px}
header img{width:48px;height:48px;border-radius:12px}nav{margin-top:10px;font-size:15px}nav a{display:inline;font-size:15px;font-weight:600;margin-right:16px;opacity:.9}
main{padding:24px 20px 60px}h1{font-size:30px;line-height:1.2}h2{font-size:21px;margin-top:32px}a{color:var(--v)}
.note{background:#fef3c7;border-left:4px solid #f59e0b;padding:12px 16px;border-radius:8px}.muted{color:var(--muted);font-size:15px}
footer{max-width:760px;margin:0 auto;padding:20px;color:var(--muted);font-size:14px;border-top:1px solid #e5e0f5}
details{background:#fff;border:1px solid #e5e0f5;border-radius:10px;padding:12px 16px;margin:10px 0}summary{font-weight:600;cursor:pointer}