:root{
  --bg:#f5f7fa; --panel:#ffffff; --ink:#1f2933; --muted:#647488;
  --line:#e3e8ef; --accent:#2563eb; --accent2:#0f766e;
  --ok:#16a34a; --bad:#dc2626; --unk:#9ca3af; --na:#cbd5e1; --err:#7c3aed;
  --shadow:0 1px 3px rgba(16,24,40,.06),0 1px 2px rgba(16,24,40,.04);
}
*{box-sizing:border-box}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"PingFang SC","Microsoft YaHei",sans-serif;
  background:var(--bg);color:var(--ink);line-height:1.55}
.wrap{max-width:1100px;margin:0 auto;padding:0 20px}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}

.site-header{background:linear-gradient(135deg,#0f172a,#1e3a8a);color:#fff;padding:26px 0}
.brand{display:flex;align-items:center;gap:14px}
.brand .logo{font-size:34px}
.brand h1{margin:0;font-size:24px;letter-spacing:.3px}
.tagline{margin:2px 0 0;color:#c7d2fe;font-size:13px}
.updated{margin:10px 0 0;font-size:13px;color:#cbd5e1}
.stale-warn{display:inline-block;margin-left:8px;padding:2px 8px;border-radius:6px;background:#fef3c7;color:#92400e;font-weight:600}
.eval-fail-banner{margin:0;padding:12px 18px;background:#fffbeb;border-bottom:2px solid #d97706;color:#92400e;font-size:13px;line-height:1.6}
.eval-fail-banner b{color:#78350f}
.eval-fail-banner a{color:#b45309}
.legal-disclaimer{margin:0;padding:12px 18px;background:#fef2f2;border-bottom:2px solid #dc2626;color:#7f1d1d;font-size:13px;line-height:1.6}
.legal-disclaimer b{color:#991b1b}
.site-header .wrap{display:flex;flex-direction:column}

main{padding:24px 0 40px}
.cards{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-bottom:22px}
.kpi{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:16px;box-shadow:var(--shadow)}
.kpi .k-label{font-size:12px;color:var(--muted)}
.kpi .k-value{font-size:26px;font-weight:700;margin-top:4px}
.kpi .k-sub{font-size:12px;color:var(--muted);margin-top:2px}

.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-bottom:18px}
.panel{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:18px;box-shadow:var(--shadow);margin-bottom:18px}
.panel h2{margin:0 0 14px;font-size:17px}
.panel h2 .sub{font-size:12px;color:var(--muted);font-weight:400}
.note{font-size:11px;color:var(--muted);margin:10px 0 0;line-height:1.5}

.table-scroll{overflow-x:auto}
table{border-collapse:collapse;width:100%;font-size:14px}
th,td{padding:9px 10px;text-align:left;border-bottom:1px solid var(--line);white-space:nowrap}
th{font-size:12px;color:var(--muted);font-weight:600;text-transform:uppercase;letter-spacing:.4px}
td.num,th.num{text-align:right;font-variant-numeric:tabular-nums}
tbody tr:hover{background:#f8fafc}
.rank-badge{display:inline-flex;width:22px;height:22px;align-items:center;justify-content:center;border-radius:50%;background:#eef2ff;color:#3730a3;font-weight:700;font-size:12px}
.hvi-pill{display:inline-block;min-width:46px;text-align:center;padding:3px 8px;border-radius:999px;font-weight:700;color:#fff;font-size:13px}

.chart-box{position:relative;height:340px}

.legend{display:flex;flex-wrap:wrap;gap:10px;font-size:12px;margin:0 0 12px;color:var(--muted)}
.lg{padding:2px 8px;border-radius:6px;background:#f1f5f9}
.lg.ok{color:var(--ok)} .lg.bad{color:var(--bad)} .lg.unk{color:var(--unk)} .lg.na{color:#94a3b8} .lg.err{color:var(--err)}

#matrix{display:inline-block;min-width:100%}
table.matrix{border-collapse:collapse;font-size:13px}
table.matrix th,table.matrix td{border:1px solid var(--line);padding:6px 8px;text-align:center}
table.matrix th.q{text-align:left;min-width:220px;max-width:340px;white-space:normal;color:var(--ink);font-weight:500}
table.matrix thead th{background:#f8fafc;position:sticky;top:0}
.cell{font-weight:700;border-radius:4px;cursor:pointer;display:block;padding:4px 6px}
.cell.ok{background:#dcfce7;color:var(--ok)}
.cell.bad{background:#fee2e2;color:var(--bad)}
.cell.temporal{background:#fae8ff;color:#a21caf}
.cell.err{background:#ede9fe;color:var(--err)}
.cell.unk{background:#f3f4f6;color:var(--unk)}
.cell.na{background:#f1f5f9;color:#94a3b8}
.cell .tip{display:block;font-weight:400;font-size:10px;color:var(--muted);margin-top:2px;max-width:160px;white-space:normal}
.ans{font-size:12px;color:var(--ink);background:#f8fafc;border:1px solid var(--line);border-radius:6px;padding:8px;margin-top:4px;text-align:left;white-space:normal;line-height:1.5}
.ans.collapsed{display:none}

.diff-view{display:flex;flex-direction:column;gap:8px}
.diff-row{display:flex;align-items:center;gap:12px;font-size:14px;padding:6px 8px;border:1px solid var(--line);border-radius:8px}
.diff-model{font-weight:600;min-width:120px}
.diff-bar{flex:1;height:8px;background:#eef2f7;border-radius:4px;overflow:hidden}
.diff-bar > span{display:block;height:100%}
.diff-delta{font-weight:700;min-width:64px;text-align:right;font-variant-numeric:tabular-nums}

.audit-list{margin:0;padding-left:18px;font-size:14px}
.audit-list li{margin:6px 0}

.site-footer{border-top:1px solid var(--line);padding:22px 0;color:var(--muted);font-size:13px}
.site-footer .copy{margin-top:6px;font-size:12px}

@media(max-width:860px){
  .cards{grid-template-columns:repeat(2,1fr)}
  .grid-2{grid-template-columns:1fr}
}