:root {
  --bg: #0b1220;
  --panel: #131c2e;
  --panel-2: #1a2740;
  --line: #24314a;
  --text: #e6edf7;
  --muted: #8ea3c0;
  --accent: #3b82f6;
  --ok: #10b981;
  --warn: #f59e0b;
  --bad: #ef4444;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: radial-gradient(1200px 600px at 20% -10%, #16233c 0%, var(--bg) 55%);
  color: var(--text);
  font: 14px/1.5 -apple-system, "PingFang SC", "Microsoft YaHei", Segoe UI, sans-serif;
  min-height: 100vh;
}
a { color: inherit; text-decoration: none; }

.topbar {
  display: flex; align-items: center; gap: 14px;
  padding: 14px 26px; border-bottom: 1px solid var(--line);
  background: rgba(11,18,32,.75); backdrop-filter: blur(8px);
  position: sticky; top: 0; z-index: 10;
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; letter-spacing: .3px; }
.brand .dot { width: 9px; height: 9px; border-radius: 50%; background: var(--ok); box-shadow: 0 0 10px var(--ok); }
.brand small { color: var(--muted); font-weight: 400; letter-spacing: 0; }
.topbar .spacer { flex: 1; }
.btn {
  border: 1px solid var(--line); background: var(--panel-2); color: var(--text);
  padding: 7px 14px; border-radius: 8px; cursor: pointer; font-size: 13px;
  transition: .15s;
}
.btn:hover { border-color: var(--accent); color: #fff; }
.btn.primary { background: var(--accent); border-color: var(--accent); }

.wrap { padding: 22px 26px 60px; max-width: 1400px; margin: 0 auto; }
.page-title { font-size: 22px; font-weight: 700; margin: 4px 0 2px; }
.page-sub { color: var(--muted); font-size: 13px; margin-bottom: 18px; }

/* 应用中心卡片 */
.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 16px; }
.dcard {
  background: linear-gradient(180deg, var(--panel-2), var(--panel));
  border: 1px solid var(--line); border-radius: 14px; padding: 18px;
  cursor: pointer; transition: .18s; position: relative; overflow: hidden;
}
.dcard:hover { transform: translateY(-2px); border-color: var(--accent); box-shadow: 0 10px 30px rgba(0,0,0,.35); }
.dcard h3 { margin: 0 0 6px; font-size: 16px; }
.dcard p { margin: 0 0 12px; color: var(--muted); font-size: 12.5px; min-height: 34px; }
.dcard .tags { display: flex; gap: 6px; flex-wrap: wrap; }
.tag { font-size: 11px; padding: 3px 9px; border-radius: 20px; background: #22304c; color: #a9c0e4; }
.tag.ok { background: rgba(16,185,129,.15); color: #6ee7b7; }
.dcard .meta { position: absolute; top: 16px; right: 16px; color: var(--muted); font-size: 11px; }

/* 看板 */
.section { margin-bottom: 26px; }
.section > h4 {
  margin: 0 0 12px; font-size: 13px; color: var(--muted); font-weight: 600;
  letter-spacing: 1px; text-transform: uppercase;
  display: flex; align-items: center; gap: 10px;
}
.section > h4::after { content: ""; flex: 1; height: 1px; background: var(--line); }
.grid { display: grid; grid-template-columns: repeat(12, 1fr); gap: 14px; }
.w { grid-column: span 12; }

.kpi {
  background: linear-gradient(180deg, var(--panel-2), var(--panel));
  border: 1px solid var(--line); border-radius: 14px; padding: 16px 18px;
  position: relative; overflow: hidden;
}
.kpi::before { content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 3px; background: var(--accent); }
.kpi .k-label { color: var(--muted); font-size: 12.5px; display: flex; align-items: center; gap: 6px; }
.kpi .k-value { font-size: 30px; font-weight: 700; margin-top: 8px; font-variant-numeric: tabular-nums; }
.kpi .k-unit { font-size: 13px; color: var(--muted); margin-left: 6px; font-weight: 400; }
.kpi.warn-true .k-value { color: var(--warn); }
.kpi .k-err { color: var(--bad); font-size: 12px; margin-top: 6px; }

.chart-card {
  background: var(--panel); border: 1px solid var(--line); border-radius: 14px; padding: 14px 16px 6px;
}
.chart-card .c-title { font-size: 13.5px; color: #cbd8ee; margin-bottom: 6px; font-weight: 600; }
.chart { width: 100%; height: 280px; }

.empty { color: var(--muted); padding: 60px 0; text-align: center; }
.foot { color: #5b6f8d; font-size: 12px; margin-top: 26px; text-align: center; }
.loading { color: var(--muted); padding: 40px; text-align: center; }