:root{color-scheme:light dark;--bg:light-dark(#f7f8fa,#15171b);--panel:light-dark(#fff,#1d2026);--text:light-dark(#1d1d1f,#f5f5f7);--muted:light-dark(#636871,#b1b8c4);--line:light-dark(#e5e7eb,#363c46);--blue:#0066cc}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font:16px/1.65 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}main{max-width:820px;margin:0 auto;padding:30px 24px 64px}header{border-bottom:1px solid var(--line);background:var(--panel)}.nav{max-width:820px;margin:auto;padding:15px 24px;display:flex;align-items:center;justify-content:space-between;gap:18px}.brand{color:var(--text);font-weight:650;text-decoration:none;display:flex;align-items:center;gap:9px}.brand img{width:30px;height:30px}.nav a{color:var(--muted);text-decoration:none;margin-left:16px}.nav a:hover,.back{color:var(--blue)}h1{font-size:clamp(32px,6vw,52px);line-height:1.1;letter-spacing:-1.5px;margin:42px 0 16px}h2{font-size:25px;line-height:1.25;margin:38px 0 12px}p{color:var(--muted);margin:12px 0}a{color:var(--blue)}table{width:100%;border-collapse:collapse;background:var(--panel);margin:22px 0}th,td{text-align:left;padding:13px 16px;border-bottom:1px solid var(--line)}th{color:var(--muted);font-weight:550}tr:last-child td{border-bottom:0}.callout{background:light-dark(#edf4ff,#233247);padding:20px;border-radius:12px;margin-top:30px}.button{display:inline-block;background:var(--blue);color:#fff;text-decoration:none;padding:11px 17px;border-radius:9px;font-weight:600;margin-top:8px}details{border-bottom:1px solid var(--line);padding:7px 0}summary{cursor:pointer;padding:10px 0;font-weight:550}footer{max-width:820px;margin:auto;padding:20px 24px 35px;border-top:1px solid var(--line);color:var(--muted);font-size:13px}@media(max-width:600px){.nav a{margin-left:8px;font-size:14px}main{padding:22px 18px 48px}h1{margin-top:30px}}