:root{--bg:#faf9ff;--card:#fff;--ink:#1f2233;--accent:#7c6cf0;--ok:#1c9c5b;--warn:#c8841a;--bad:#c0392b}
body{margin:0;font:15px/1.5 system-ui,-apple-system,sans-serif;background:var(--bg);color:var(--ink)}
header{padding:16px 24px;background:var(--card);border-bottom:1px solid #ece9ff}
nav a{margin-right:16px;color:var(--accent);text-decoration:none}
main{max-width:1100px;margin:24px auto;padding:0 16px}
.card{background:var(--card);border:1px solid #ece9ff;border-radius:12px;padding:16px;margin:12px 0}
table{width:100%;border-collapse:collapse}th,td{padding:8px;border-bottom:1px solid #f0eefc;text-align:right}
th:first-child,td:first-child{text-align:left}
.diff-pos{color:var(--ok)}.diff-neg{color:var(--bad)}
.note{color:#888;font-size:13px}
footer{max-width:1100px;margin:32px auto;padding:16px;color:#888;font-size:13px}