:root{
  --bg:#0f172a;--panel:#1e293b;--panel2:#273449;--line:#334155;--text:#e2e8f0;
  --muted:#94a3b8;--accent:#3b82f6;--accent2:#2563eb;--danger:#ef4444;--ok:#22c55e;--warn:#f59e0b;
}
*{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(--text);line-height:1.5}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}
.topbar{display:flex;align-items:center;justify-content:space-between;padding:12px 20px;
  background:var(--panel);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:10}
.topbar .brand{font-weight:700;font-size:16px}
.topbar nav a{margin-right:16px;color:var(--muted);font-size:14px}
.topbar nav a.active{color:var(--text)}
.container{max-width:1000px;margin:0 auto;padding:24px 20px}
.auth-wrap{max-width:400px;margin:8vh auto;padding:0 20px}
.card{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:20px;margin-bottom:16px}
h1{font-size:22px;margin:0 0 16px}
h2{font-size:17px;margin:0 0 12px}
label{display:block;font-size:13px;color:var(--muted);margin:12px 0 6px}
input,select{width:100%;padding:10px 12px;background:var(--panel2);border:1px solid var(--line);
  border-radius:8px;color:var(--text);font-size:14px}
input:focus,select:focus{outline:none;border-color:var(--accent)}
button,.btn{display:inline-block;padding:9px 16px;background:var(--accent2);color:#fff;border:none;
  border-radius:8px;font-size:14px;cursor:pointer}
button:hover,.btn:hover{background:var(--accent);text-decoration:none}
button:disabled{opacity:.6;cursor:not-allowed}
.btn-sm{padding:5px 10px;font-size:12px}
.btn-danger{background:var(--danger)}
.btn-ghost{background:transparent;border:1px solid var(--line);color:var(--text)}
.btn-row{display:flex;gap:8px;flex-wrap:wrap;margin-top:16px}
table{width:100%;border-collapse:collapse;font-size:13px}
th,td{text-align:left;padding:10px 8px;border-bottom:1px solid var(--line);vertical-align:top}
th{color:var(--muted);font-weight:600}
.badge{display:inline-block;padding:2px 8px;border-radius:999px;font-size:12px}
.badge.active{background:rgba(34,197,94,.15);color:#4ade80}
.badge.disabled{background:rgba(239,68,68,.15);color:#f87171}
.badge.default{background:rgba(59,130,246,.15);color:#60a5fa}
.muted{color:var(--muted)}
.msg{padding:10px 12px;border-radius:8px;margin:12px 0;font-size:14px;display:none}
.msg.err{display:block;background:rgba(239,68,68,.12);color:#fca5a5;border:1px solid rgba(239,68,68,.3)}
.msg.ok{display:block;background:rgba(34,197,94,.12);color:#86efac;border:1px solid rgba(34,197,94,.3)}
.stats-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:12px}
.stat{background:var(--panel2);border-radius:10px;padding:16px}
.stat .num{font-size:26px;font-weight:700}
.stat .lbl{font-size:12px;color:var(--muted);margin-top:4px}
.mono{font-family:ui-monospace,SFMono-Regular,Menlo,monospace}
.email-body{white-space:pre-wrap;word-break:break-word;background:var(--panel2);padding:16px;border-radius:8px;font-size:14px}
.empty{text-align:center;color:var(--muted);padding:40px 0}
.flex-between{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap}
.copy-hint{cursor:pointer}