:root{color-scheme:dark;--bg:#070a14;--card:#10172a;--line:#263150;--text:#f5f7ff;--muted:#a6b0ca;--accent:#62dded;--warning:#ffe099}*{box-sizing:border-box}body{margin:0;background:radial-gradient(circle at top,#172447 0,#070a14 44%);color:var(--text);font:16px/1.65 system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}main{width:min(900px,calc(100% - 32px));margin:32px auto 64px;background:rgba(16,23,42,.96);border:1px solid var(--line);border-radius:24px;padding:clamp(24px,5vw,48px);box-shadow:0 30px 70px rgba(0,0,0,.35)}nav{display:flex;gap:16px;flex-wrap:wrap;margin-bottom:24px}a{color:var(--accent)}h1{font-size:clamp(2rem,6vw,3.3rem);line-height:1.05;margin:0 0 12px}h2{margin-top:32px;font-size:1.25rem}.eyebrow,.updated{color:var(--muted)}.notice{padding:16px;border:1px solid #8b6c29;background:#2c2411;border-radius:14px}.placeholder{color:var(--warning);font-weight:750}ul,ol{padding-left:24px}.back{text-decoration:none}.footer{margin-top:36px;padding-top:22px;border-top:1px solid var(--line);color:var(--muted)}@media(max-width:520px){main{width:min(100% - 20px,900px);margin:10px auto 30px;border-radius:18px;padding:22px}nav{gap:12px}h2{margin-top:26px}}