:root {
  --bg: #0f172a;
  --side: #111827;
  --panel: #1f2937;
  --line: #334155;
  --text: #f8fafc;
  --muted: #94a3b8;
  --brand: #14b8a6;
  --brand-2: #38bdf8;
  --warn: #f59e0b;
  --danger: #f87171;
  --ok: #34d399;
  --radius: 12px;
  --font: "Noto Sans SC", "Microsoft YaHei", sans-serif;
}
* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: var(--font);
  background: #0b1220;
  color: var(--text);
}
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; color: inherit; }
.app {
  display: grid;
  grid-template-columns: 240px 1fr;
  min-height: 100vh;
}
.sidebar {
  background: linear-gradient(180deg, #0b1220, #111827);
  border-right: 1px solid var(--line);
  padding: 1rem .75rem 1.5rem;
  position: sticky;
  top: 0;
  height: 100vh;
  overflow: auto;
}
.logo {
  display: flex; align-items: center; gap: .7rem;
  padding: .5rem .6rem 1rem;
  border-bottom: 1px solid var(--line);
  margin-bottom: .8rem;
}
.logo-badge {
  width: 36px; height: 36px; border-radius: 10px;
  display: grid; place-items: center; font-weight: 800; color: #042f2e;
  background: linear-gradient(135deg, var(--brand), var(--brand-2));
}
.logo strong { display: block; font-size: .95rem; }
.logo span { color: var(--muted); font-size: .75rem; }
.menu-group { margin: .8rem 0 .35rem; padding: 0 .7rem; color: #64748b; font-size: .72rem; letter-spacing: .08em; }
.menu-btn {
  width: 100%;
  text-align: left;
  border: 0;
  background: transparent;
  color: #cbd5e1;
  padding: .7rem .75rem;
  border-radius: 10px;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: .55rem;
  margin: .15rem 0;
}
.menu-btn:hover { background: rgba(255,255,255,.05); color: #fff; }
.menu-btn.active {
  background: rgba(20, 184, 166, .16);
  color: #5eead4;
  box-shadow: inset 0 0 0 1px rgba(20,184,166,.35);
}
.main { display: flex; flex-direction: column; min-width: 0; }
.topbar {
  height: 64px;
  border-bottom: 1px solid var(--line);
  background: rgba(15, 23, 42, .9);
  backdrop-filter: blur(10px);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 1.2rem;
  position: sticky;
  top: 0;
  z-index: 5;
}
.topbar h1 { margin: 0; font-size: 1.05rem; }
.topbar .meta { color: var(--muted); font-size: .85rem; }
.badge {
  display: inline-flex; align-items: center; gap: .35rem;
  padding: .25rem .55rem; border-radius: 999px;
  background: rgba(52, 211, 153, .12); color: var(--ok); font-size: .78rem; font-weight: 700;
}
.content { padding: 1.1rem 1.2rem 2rem; }
.view { display: none; }
.view.active { display: block; }
.cards {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: .8rem;
}
.card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1rem;
}
.card .label { color: var(--muted); font-size: .85rem; }
.card .value { font-size: 1.55rem; font-weight: 800; margin-top: .35rem; }
.card .sub { color: var(--muted); font-size: .8rem; margin-top: .25rem; }
.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1rem;
  margin-top: .9rem;
}
.panel h3 { margin: 0 0 .8rem; font-size: 1rem; }
.toolbar {
  display: flex; flex-wrap: wrap; gap: .6rem; align-items: center;
  margin-bottom: .8rem;
}
.btn {
  border: 1px solid var(--line);
  background: #0f172a;
  color: var(--text);
  border-radius: 10px;
  padding: .55rem .9rem;
  cursor: pointer;
}
.btn:hover { border-color: #64748b; }
.btn-primary {
  background: linear-gradient(135deg, #0d9488, #0891b2);
  border-color: transparent;
  color: #fff;
  font-weight: 700;
}
.btn-danger { background: rgba(248,113,113,.12); border-color: rgba(248,113,113,.35); color: #fecaca; }
input, select, textarea {
  background: #0b1220;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: .55rem .75rem;
  outline: none;
}
input:focus, select:focus, textarea:focus { border-color: #14b8a6; }
table {
  width: 100%;
  border-collapse: collapse;
  font-size: .9rem;
}
th, td {
  padding: .7rem .55rem;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}
th { color: #94a3b8; font-weight: 600; font-size: .8rem; }
tr:hover td { background: rgba(255,255,255,.02); }
.tag {
  display: inline-block;
  padding: .15rem .45rem;
  border-radius: 999px;
  font-size: .75rem;
  font-weight: 700;
}
.tag-ok { background: rgba(52,211,153,.15); color: #6ee7b7; }
.tag-warn { background: rgba(245,158,11,.15); color: #fcd34d; }
.tag-off { background: rgba(148,163,184,.15); color: #cbd5e1; }
.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: .75rem;
}
.form-grid label { display: grid; gap: .3rem; color: var(--muted); font-size: .85rem; }
.form-grid .full { grid-column: 1 / -1; }
.split {
  display: grid;
  grid-template-columns: 1.2fr .8fr;
  gap: .9rem;
}
.muted { color: var(--muted); }
.empty {
  text-align: center;
  color: var(--muted);
  padding: 2rem 1rem;
}
.toast {
  position: fixed;
  right: 1rem;
  bottom: 1rem;
  background: #134e4a;
  border: 1px solid #2dd4bf;
  color: #ccfbf1;
  padding: .75rem 1rem;
  border-radius: 12px;
  opacity: 0;
  transform: translateY(8px);
  transition: .25s ease;
  z-index: 50;
}
.toast.show { opacity: 1; transform: none; }
.mobile-toggle {
  display: none;
  border: 1px solid var(--line);
  background: #0f172a;
  color: #fff;
  border-radius: 10px;
  padding: .45rem .7rem;
}
@media (max-width: 980px) {
  .app { grid-template-columns: 1fr; }
  .sidebar {
    position: fixed;
    left: -260px;
    width: 240px;
    z-index: 20;
    transition: left .2s ease;
  }
  .sidebar.open { left: 0; }
  .cards { grid-template-columns: 1fr 1fr; }
  .split, .form-grid { grid-template-columns: 1fr; }
  .mobile-toggle { display: inline-block; }
}