:root{
  --bg:#060b1e; --bg2:#0a1430; --panel:rgba(255,255,255,.045); --panel2:rgba(13,27,60,.6);
  --border:rgba(120,160,255,.16); --border2:rgba(120,160,255,.30);
  --text:#e6edf7; --muted:#8aa0c8; --accent:#2dd4bf; --accent2:#38bdf8; --accent3:#818cf8;
  --ok:#34d399; --warn:#fbbf24; --danger:#f87171; --info:#60a5fa;
  --glow:0 0 24px rgba(45,212,191,.25);
}
*{box-sizing:border-box;margin:0;padding:0}
html,body{height:100%}
body{
  font-family:"PingFang SC","Microsoft YaHei",-apple-system,"Segoe UI",sans-serif;
  color:var(--text); background:var(--bg); overflow:hidden;
  background-image:
    radial-gradient(900px 500px at 12% -8%, rgba(56,189,248,.18), transparent 60%),
    radial-gradient(800px 520px at 92% 6%, rgba(129,140,248,.16), transparent 60%),
    linear-gradient(180deg,var(--bg),var(--bg2));
}
body::before{content:"";position:fixed;inset:0;background-image:
  linear-gradient(rgba(120,160,255,.05) 1px,transparent 1px),
  linear-gradient(90deg,rgba(120,160,255,.05) 1px,transparent 1px);
  background-size:42px 42px;mask:radial-gradient(circle at 50% 30%,#000,transparent 85%);pointer-events:none}

/* 登录层 */
#login{position:fixed;inset:0;display:flex;align-items:center;justify-content:center;z-index:50;
  background:rgba(4,8,20,.72);backdrop-filter:blur(8px)}
.login-card{width:380px;padding:34px 30px;border-radius:18px;background:var(--panel2);
  border:1px solid var(--border2);box-shadow:0 20px 60px rgba(0,0,0,.5),var(--glow)}
.login-card h2{font-size:20px;letter-spacing:.5px;margin-bottom:4px}
.login-card .sub{color:var(--muted);font-size:12px;margin-bottom:22px}
.login-card input{width:100%;padding:12px 14px;margin-bottom:14px;border-radius:10px;
  background:rgba(255,255,255,.05);border:1px solid var(--border);color:var(--text);font-size:14px;outline:none}
.login-card input:focus{border-color:var(--accent)}
.login-card button{width:100%;padding:12px;border:none;border-radius:10px;cursor:pointer;font-size:15px;font-weight:600;
  color:#04121a;background:linear-gradient(135deg,var(--accent),var(--accent2));box-shadow:var(--glow)}
.login-card .hint{margin-top:14px;font-size:11px;color:var(--muted);text-align:center}
.err{color:var(--danger);font-size:12px;min-height:16px;margin-bottom:10px}

/* 应用框架 */
#app{display:none;height:100vh;grid-template-columns:230px 1fr;grid-template-rows:64px 1fr}
#app.show{display:grid}
.sidebar{grid-row:1/3;background:linear-gradient(180deg,rgba(10,20,48,.9),rgba(6,11,30,.95));
  border-right:1px solid var(--border);padding:18px 14px;display:flex;flex-direction:column}
.brand{display:flex;align-items:center;gap:10px;margin-bottom:22px}
.brand .logo{width:34px;height:34px;border-radius:9px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--accent),var(--accent3));box-shadow:var(--glow);font-weight:800;color:#04121a}
.brand .name{font-size:14px;font-weight:700;line-height:1.2}
.brand .name small{display:block;font-size:10px;color:var(--muted);font-weight:400}
.nav-item{padding:11px 12px;border-radius:10px;color:var(--muted);font-size:13.5px;cursor:pointer;margin-bottom:6px;
  border:1px solid transparent;transition:.18s;display:flex;align-items:center;gap:10px}
.nav-item:hover{color:var(--text);background:rgba(255,255,255,.04)}
.nav-item.active{color:var(--text);background:linear-gradient(90deg,rgba(45,212,191,.16),rgba(56,189,248,.05));
  border-color:var(--border2);box-shadow:inset 0 0 0 1px rgba(45,212,191,.12)}
.nav-item .dot{width:7px;height:7px;border-radius:50%;background:var(--accent)}
.side-foot{margin-top:auto;font-size:10.5px;color:var(--muted);line-height:1.6}

.topbar{grid-column:2;display:flex;align-items:center;justify-content:space-between;padding:0 24px;
  border-bottom:1px solid var(--border);background:rgba(6,11,30,.55);backdrop-filter:blur(6px)}
.topbar .title{font-size:15px;font-weight:700}
.topbar .title small{color:var(--muted);font-weight:400;margin-left:8px;font-size:12px}
.badge{display:inline-block;padding:3px 10px;border-radius:20px;font-size:11px;border:1px solid var(--border2);
  color:var(--accent);background:rgba(45,212,191,.08)}
.user-chip{display:flex;align-items:center;gap:9px;font-size:13px}
.user-chip .av{width:30px;height:30px;border-radius:50%;background:linear-gradient(135deg,var(--accent2),var(--accent3));
  display:grid;place-items:center;font-size:12px;font-weight:700;color:#04121a}
.user-chip button{background:none;border:1px solid var(--border);color:var(--muted);font-size:12px;
  padding:5px 10px;border-radius:8px;cursor:pointer}
.user-chip button:hover{color:var(--text);border-color:var(--border2)}

.main{grid-column:2;overflow:auto;padding:22px 24px}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:20px}
.stat{position:relative;padding:18px 18px;border-radius:14px;background:var(--panel);border:1px solid var(--border);overflow:hidden}
.stat::after{content:"";position:absolute;right:-20px;top:-20px;width:90px;height:90px;border-radius:50%;
  background:radial-gradient(circle,rgba(45,212,191,.25),transparent 70%)}
.stat .k{font-size:12px;color:var(--muted)}
.stat .v{font-size:30px;font-weight:800;margin-top:6px;font-variant-numeric:tabular-nums;
  background:linear-gradient(135deg,#fff,var(--accent));-webkit-background-clip:text;background-clip:text;color:transparent}
.stat .u{font-size:12px;color:var(--muted);margin-left:4px}
.stat.c2 .v{background:linear-gradient(135deg,#fff,var(--accent2));-webkit-background-clip:text;background-clip:text;color:transparent}
.stat.c3 .v{background:linear-gradient(135deg,#fff,var(--accent3));-webkit-background-clip:text;background-clip:text;color:transparent}
.stat.c4 .v{background:linear-gradient(135deg,#fff,var(--warn));-webkit-background-clip:text;background-clip:text;color:transparent}

.cols{display:grid;grid-template-columns:1.1fr 1fr;gap:16px;margin-bottom:20px}
.card{padding:18px;border-radius:14px;background:var(--panel);border:1px solid var(--border)}
.card h3{font-size:14px;margin-bottom:14px;display:flex;align-items:center;gap:8px}
.card h3::before{content:"";width:4px;height:14px;border-radius:3px;background:linear-gradient(var(--accent),var(--accent2))}
.bar-row{display:flex;align-items:center;gap:10px;margin-bottom:11px;font-size:12.5px}
.bar-row .lab{width:84px;color:var(--muted);text-align:right}
.bar-row .track{flex:1;height:10px;border-radius:6px;background:rgba(255,255,255,.06);overflow:hidden}
.bar-row .fill{height:100%;border-radius:6px;background:linear-gradient(90deg,var(--accent),var(--accent2));box-shadow:var(--glow)}
.bar-row .num{width:30px;text-align:left;color:var(--text)}

.donut-wrap{display:flex;align-items:center;gap:18px}
.legend{font-size:12px}
.legend div{display:flex;align-items:center;gap:8px;margin-bottom:7px;color:var(--muted)}
.legend .sw{width:10px;height:10px;border-radius:3px}

.table-card{padding:18px;border-radius:14px;background:var(--panel);border:1px solid var(--border)}
.table-card h3{font-size:14px;margin-bottom:14px;display:flex;align-items:center;gap:8px}
.table-card h3::before{content:"";width:4px;height:14px;border-radius:3px;background:linear-gradient(var(--accent),var(--accent2))}
table{width:100%;border-collapse:collapse;font-size:12.5px}
th,td{text-align:left;padding:10px 12px;border-bottom:1px solid rgba(120,160,255,.08)}
th{color:var(--muted);font-weight:600;position:sticky;top:0;background:rgba(6,11,30,.6)}
tbody tr:hover{background:rgba(56,189,248,.06)}
.pill{padding:3px 9px;border-radius:20px;font-size:11px;border:1px solid transparent}
.pill.ok{color:var(--ok);background:rgba(52,211,153,.12);border-color:rgba(52,211,153,.3)}
.pill.warn{color:var(--warn);background:rgba(251,191,36,.12);border-color:rgba(251,191,36,.3)}
.pill.danger{color:var(--danger);background:rgba(248,113,113,.12);border-color:rgba(248,113,113,.3)}
.pill.info{color:var(--info);background:rgba(96,165,250,.12);border-color:rgba(96,165,250,.3)}
.tag{display:inline-block;padding:2px 8px;border-radius:6px;font-size:11px;background:rgba(129,140,248,.14);color:#c7d2fe;border:1px solid rgba(129,140,248,.25)}
.toolbar{display:flex;gap:10px;margin-bottom:14px;flex-wrap:wrap}
.toolbar select,.toolbar input{padding:8px 11px;border-radius:9px;background:rgba(255,255,255,.05);
  border:1px solid var(--border);color:var(--text);font-size:13px;outline:none}
.toolbar select:focus,.toolbar input:focus{border-color:var(--accent)}