:root {
  --bg: #0c0f14;
  --bg-elevated: #12171f;
  --bg-panel: #161c26;
  --border: rgba(255,255,255,.08);
  --text: #e8edf4;
  --muted: #8b95a8;
  --accent: #3b82f6;
  --green: #22c55e;
  --red: #ef4444;
  --amber: #f59e0b;
  --radius: 10px;
  --font: "Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;
  --mono: Consolas,monospace;
}
*{box-sizing:border-box}
html,body{margin:0;min-height:100%;background:var(--bg);color:var(--text);font-family:var(--font);font-size:14px}
.hidden{display:none!important}
.layout{display:flex;min-height:100vh}
.sidebar{width:220px;background:var(--bg-elevated);border-right:1px solid var(--border);padding:20px 14px;display:flex;flex-direction:column}
.brand{display:flex;gap:12px;align-items:center;margin-bottom:24px}
.brand-icon{width:40px;height:40px;border-radius:10px;background:linear-gradient(135deg,#2563eb,#7c3aed);display:flex;align-items:center;justify-content:center;font-weight:700;font-size:13px}
.brand-name{font-weight:600}
.brand-sub{font-size:12px;color:var(--muted)}
.nav{display:flex;flex-direction:column;gap:4px;flex:1}
.nav-item{text-align:left;padding:10px 12px;border:none;border-radius:8px;background:transparent;color:var(--muted);cursor:pointer}
.nav-item.active,.nav-item:hover{background:rgba(59,130,246,.15);color:var(--text)}
.side-foot{padding-top:16px;border-top:1px solid var(--border);display:flex;justify-content:space-between;align-items:center;font-size:12px;color:var(--muted)}
.main{flex:1;padding:24px 28px;overflow:auto}
.topbar{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px}
.topbar h1{margin:0;font-size:22px}
.tab{display:none}.tab.active{display:block}
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:12px;margin-bottom:20px}
.stats-top{grid-template-columns:repeat(5,minmax(0,1fr)) auto}
@media(max-width:1100px){.stats-top{grid-template-columns:repeat(auto-fit,minmax(140px,1fr))}}
.stat-action{display:flex;align-items:center;justify-content:center;padding:8px}
.stat-action .btn{width:100%;min-height:52px}
.dash-hint{margin:0;font-size:12px;color:var(--muted);align-self:center}
.stat-card{background:var(--bg-panel);border:1px solid var(--border);border-radius:var(--radius);padding:16px}
.stat-val{font-size:28px;font-weight:700;display:block}
.stat-key{font-size:12px;color:var(--muted)}
.panel{background:var(--bg-panel);border:1px solid var(--border);border-radius:var(--radius);padding:16px;margin-bottom:16px}
.panel-head{font-weight:600;margin-bottom:12px}
.btn{border:none;border-radius:8px;padding:8px 14px;cursor:pointer;font-size:13px}
.btn-primary{background:var(--accent);color:#fff}
.btn-ghost{background:transparent;border:1px solid var(--border);color:var(--text)}
.btn-warn{background:var(--red);color:#fff}
.btn-sm{padding:4px 10px;font-size:12px}
.btn-block{width:100%;margin-top:8px}
.btn-group{display:flex;gap:8px;flex-wrap:wrap}
table{width:100%;border-collapse:collapse}
th,td{padding:10px 12px;text-align:left;border-bottom:1px solid var(--border);font-size:13px}
th{color:var(--muted);font-weight:500}
.tag{display:inline-block;padding:2px 8px;border-radius:999px;font-size:11px;background:rgba(34,197,94,.15);color:var(--green)}
.tag-off{background:rgba(239,68,68,.12);color:var(--red)}
input,textarea{width:100%;padding:10px 12px;margin:6px 0 12px;border-radius:8px;border:1px solid var(--border);background:#0a0d12;color:var(--text);font-family:inherit}
textarea{font-family:var(--mono);font-size:12px}
label{display:block;font-size:12px;color:var(--muted);margin-top:4px}
.hint{font-size:12px;color:var(--muted);margin:0 0 10px}
.hint code{background:#0a0d12;padding:2px 6px;border-radius:4px;font-size:11px}
.login-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;background:radial-gradient(ellipse at top,rgba(59,130,246,.12),transparent 50%),var(--bg)}
.login-card{width:360px;background:var(--bg-panel);border:1px solid var(--border);border-radius:16px;padding:32px}
.brand-lg{font-size:32px;font-weight:800;background:linear-gradient(135deg,#60a5fa,#a78bfa);-webkit-background-clip:text;-webkit-text-fill-color:transparent;margin-bottom:8px}
.login-card h1{margin:0 0 4px;font-size:20px}
.muted{color:var(--muted);font-size:13px;margin-bottom:20px}
.err{color:var(--red);font-size:13px;min-height:20px}
.log-box{background:#0a0d12;border:1px solid var(--border);border-radius:8px;padding:12px;font-family:var(--mono);font-size:11px;max-height:240px;overflow:auto;white-space:pre-wrap}
.modal{position:fixed;inset:0;background:rgba(0,0,0,.6);display:flex;align-items:center;justify-content:center;z-index:100}
.modal-card{width:420px;max-width:92vw;background:var(--bg-panel);border:1px solid var(--border);border-radius:12px;padding:20px}
.modal-actions{display:flex;justify-content:flex-end;gap:8px;margin-top:8px}
.table-wrap{overflow:auto}