:root{
  --bg:#f5f6f8; --side:#111a2b; --side-2:#1b2740; --txt:#1f2937; --muted:#6b7280;
  --line:#e5e7eb; --ok:#16a34a; --warn:#f59e0b; --bad:#dc2626; --brand:#2563eb; --card:#fff;
}
*{box-sizing:border-box}
body{margin:0;font:14px/1.6 -apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;background:var(--bg);color:var(--txt)}
a{color:var(--brand);text-decoration:none}
a:hover{text-decoration:underline}
.layout{display:flex;min-height:100vh}
.side{width:208px;background:var(--side);color:#c9d3e4;flex:0 0 208px;padding:18px 0}
.side .brand{padding:0 18px 18px;font-weight:700;font-size:15px;color:#fff;letter-spacing:.5px}
.side .brand small{display:block;font-weight:400;color:#7d8aa3;font-size:11px;letter-spacing:0}
.side a{display:block;padding:9px 18px;color:#c9d3e4;font-size:13px}
.side a:hover{background:var(--side-2);text-decoration:none;color:#fff}
.side a.on{background:var(--side-2);color:#fff;border-left:3px solid var(--brand);padding-left:15px}
.main{flex:1;min-width:0}
.topbar{background:#fff;border-bottom:1px solid var(--line);padding:12px 22px;display:flex;justify-content:space-between;align-items:center}
.topbar h1{font-size:16px;margin:0}
.topbar .who{font-size:12px;color:var(--muted)}
.wrap{padding:20px 22px;max-width:1180px}
.grid{display:grid;gap:14px}
.g4{grid-template-columns:repeat(4,1fr)}
.g3{grid-template-columns:repeat(3,1fr)}
.g2{grid-template-columns:repeat(2,1fr)}
@media(max-width:900px){.g4,.g3,.g2{grid-template-columns:1fr 1fr}.side{display:none}}
.card{background:var(--card);border:1px solid var(--line);border-radius:10px;padding:16px}
.card h3{margin:0 0 12px;font-size:14px}
.kpi{font-size:22px;font-weight:700;letter-spacing:.3px}
.kpi small{font-size:12px;font-weight:400;color:var(--muted)}
.muted{color:var(--muted)}
table{width:100%;border-collapse:collapse;font-size:13px}
th,td{padding:9px 10px;text-align:left;border-bottom:1px solid var(--line);vertical-align:middle}
th{color:var(--muted);font-weight:500;font-size:12px;white-space:nowrap}
tr:hover td{background:#fafbfc}
.badge{display:inline-block;padding:1px 8px;border-radius:999px;font-size:11px;line-height:18px}
.b-ok{background:#e7f7ec;color:#15803d}
.b-off{background:#f3f4f6;color:#4b5563}
.b-bad{background:#fdeaea;color:#b91c1c}
.b-warn{background:#fff5e5;color:#b45309}
.btn{display:inline-block;padding:7px 13px;border-radius:7px;border:1px solid var(--line);background:#fff;color:var(--txt);cursor:pointer;font-size:13px}
.btn:hover{border-color:#c7ccd6;text-decoration:none}
.btn-primary{background:var(--brand);border-color:var(--brand);color:#fff}
.btn-primary:hover{background:#1d4ed8}
.btn-danger{color:var(--bad);border-color:#f3c6c6}
.btn-sm{padding:4px 9px;font-size:12px}
input[type=text],input[type=password],input[type=date],input[type=number],select,textarea{
  width:100%;padding:8px 10px;border:1px solid var(--line);border-radius:7px;font:inherit;background:#fff;color:var(--txt)}
label.f{display:block;margin-bottom:12px}
label.f span{display:block;font-size:12px;color:var(--muted);margin-bottom:5px}
.row{display:flex;gap:10px;flex-wrap:wrap;align-items:center}
.alert{padding:10px 14px;border-radius:8px;margin-bottom:14px;font-size:13px}
.a-ok{background:#e7f7ec;color:#15803d;border:1px solid #bfe8cc}
.a-bad{background:#fdeaea;color:#b91c1c;border:1px solid #f6c8c8}
.bar{height:8px;background:#eef0f4;border-radius:99px;overflow:hidden}
.bar>i{display:block;height:100%;background:var(--brand)}
.bar.warn>i{background:var(--warn)}
.bar.bad>i{background:var(--bad)}
.chart{display:flex;align-items:flex-end;gap:6px;height:120px;padding-top:6px}
.chart .col{flex:1;display:flex;flex-direction:column;justify-content:flex-end;align-items:center;gap:4px}
.chart .col i{display:block;width:100%;background:#93b4f5;border-radius:4px 4px 0 0;min-height:2px}
.chart .col span{font-size:10px;color:var(--muted);white-space:nowrap}
.mono{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:12px;word-break:break-all}
.codebox{background:#0f172a;color:#cbd5e1;padding:10px 12px;border-radius:8px;font-family:ui-monospace,Menlo,monospace;font-size:12px;word-break:break-all}
.right{text-align:right}
.actions form{display:inline}
.login-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#0f172a,#1e3a8a)}
.login{width:340px;background:#fff;border-radius:14px;padding:26px}
.login h2{margin:0 0 4px;font-size:18px}
.login p.sub{margin:0 0 18px;color:var(--muted);font-size:12px}