:root {
    --rcp-bg: #f4f6f5;
    --rcp-ink: #16232b;
    --rcp-muted: #5a6870;
    --rcp-accent: #0c6874;
}
html, body { margin: 0; background: var(--rcp-bg); color: var(--rcp-ink); font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; }
#app { min-height: 100vh; }

.rcp-header { display: flex; align-items: center; gap: 24px; background: #fff; border-bottom: 1px solid #dfe4e3; padding: 0 20px; height: 56px; }
.rcp-brand { font-weight: 700; font-size: 17px; color: var(--rcp-accent); white-space: nowrap; }
.rcp-nav { display: flex; gap: 4px; flex: 1; overflow-x: auto; }
.rcp-nav a { color: var(--rcp-muted); text-decoration: none; padding: 8px 12px; border-radius: 6px; font-weight: 500; white-space: nowrap; }
.rcp-nav a.router-link-exact-active, .rcp-nav a.active { color: var(--rcp-ink); background: #e6eeee; }
.rcp-main { padding: 20px; max-width: 1500px; margin: 0 auto; }
.rcp-page-title { font-size: 22px; font-weight: 700; margin: 0 0 4px; }
.rcp-sub { color: var(--rcp-muted); margin: 0 0 16px; }
.rcp-toolbar { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; margin-bottom: 14px; }
.rcp-toolbar .grow { flex: 1; }
.rcp-stats { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 16px; }
.rcp-stat { background: #fff; border: 1px solid #dfe4e3; border-radius: 8px; padding: 10px 16px; min-width: 140px; }
.rcp-stat .k { font-size: 12px; color: var(--rcp-muted); }
.rcp-stat .v { font-size: 24px; font-weight: 700; font-variant-numeric: tabular-nums; }
.rcp-muted { color: var(--rcp-muted); font-size: 13px; }
.rcp-num { font-variant-numeric: tabular-nums; }
.rcp-login { min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 16px; }
.rcp-login .el-card { width: 100%; max-width: 420px; }
.rcp-qr { display: flex; justify-content: center; margin: 8px 0 12px; }
.rcp-secret { font-family: ui-monospace, Consolas, monospace; letter-spacing: 1px; word-break: break-all; background: #f1f4f3; padding: 8px; border-radius: 6px; }
.rcp-chart { width: 100%; height: 180px; display: block; }
.rcp-chart .bar { fill: var(--rcp-accent); }
.rcp-chart .axis { fill: var(--rcp-muted); font-size: 10px; }
.rcp-chart .grid { stroke: #e2e7e6; }
a.rcp-link { color: var(--rcp-accent); text-decoration: none; font-weight: 500; }
a.rcp-link:hover { text-decoration: underline; }