:root {
  --bg: #0b0f1a;
  --bg-2: #111726;
  --card: #161e30;
  --border: #24304a;
  --text: #e6edf7;
  --muted: #8fa1bd;
  --accent: #6366f1;
  --accent-2: #22d3ee;
  --green: #34d399;
  --red: #f87171;
  --amber: #fbbf24;
  --radius: 12px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
  background: radial-gradient(1200px 600px at 80% -10%, #1a2340 0%, var(--bg) 55%);
  color: var(--text);
  font-family: -apple-system, "Segoe UI", "Microsoft YaHei", Roboto, sans-serif;
  min-height: 100vh;
}

.hidden { display: none !important; }

/* ---------- 登录 ---------- */
.overlay {
  position: fixed; inset: 0;
  display: flex; align-items: center; justify-content: center;
  background: rgba(5, 8, 16, .75); backdrop-filter: blur(6px);
  z-index: 100;
}
.login-card {
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 40px 44px; width: 420px; max-width: 92vw; text-align: center;
}
.login-card h1 { font-size: 28px; font-weight: 800; letter-spacing: -.5px; }
.login-card h1 span, .brand span { color: var(--accent-2); }
.login-card .sub { color: var(--muted); margin: 6px 0 26px; font-size: 14px; }
.login-card form { display: flex; flex-direction: column; gap: 16px; text-align: left; }
.login-card label { display: flex; flex-direction: column; gap: 6px; font-size: 13px; color: var(--muted); }
.login-card input, .inline-form input, .inline-form select {
  background: var(--bg-2); border: 1px solid var(--border); color: var(--text);
  border-radius: 8px; padding: 10px 12px; font-size: 14px; outline: none;
}
.login-card input:focus, .inline-form input:focus, .inline-form select:focus { border-color: var(--accent); }
.login-card .hint { margin-top: 18px; font-size: 12px; color: var(--muted); line-height: 1.6; }

/* ---------- 布局 ---------- */
header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 18px 32px; border-bottom: 1px solid var(--border);
  position: sticky; top: 0; background: rgba(11, 15, 26, .85); backdrop-filter: blur(8px); z-index: 10;
}
.brand { font-size: 20px; font-weight: 800; }
.header-right { display: flex; gap: 10px; }

.tabs { display: flex; gap: 4px; padding: 16px 32px 0; max-width: 1200px; margin: 0 auto; }
.tab {
  background: none; border: none; color: var(--muted); font-size: 15px;
  padding: 10px 18px; cursor: pointer; border-radius: 8px 8px 0 0;
  border-bottom: 2px solid transparent; transition: .15s;
}
.tab:hover { color: var(--text); }
.tab.active { color: var(--text); border-bottom-color: var(--accent-2); font-weight: 600; }

main { max-width: 1200px; margin: 0 auto; padding: 24px 32px 80px; }

/* ---------- 概览 ---------- */
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 16px; margin-bottom: 24px; }
.card { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 22px; }
.card .num { font-size: 30px; font-weight: 800; color: var(--accent-2); }
.card .label { color: var(--muted); font-size: 13px; margin-top: 4px; }

.panel {
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 22px 24px; margin-bottom: 20px;
}
.panel h3 { font-size: 16px; margin-bottom: 14px; }
.panel-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 6px; }
.panel .hint { color: var(--muted); font-size: 12.5px; margin: 4px 0 12px; }
.badge { background: var(--bg-2); border: 1px solid var(--border); border-radius: 20px; font-size: 12px; padding: 2px 10px; color: var(--muted); font-weight: 500; }

pre {
  background: #0a0f1c; border: 1px solid var(--border); border-radius: 8px;
  padding: 14px 16px; font-size: 12.5px; line-height: 1.7; overflow-x: auto;
  color: #b6f7c1; margin: 10px 0;
}
code { background: var(--bg-2); padding: 2px 6px; border-radius: 5px; font-size: 12.5px; color: var(--accent-2); }

/* ---------- 表单 ---------- */
.inline-form { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; }
.inline-form select { min-width: 180px; }
.inline-form input[type=text] { flex: 1; min-width: 180px; }
.check { display: flex; align-items: center; gap: 6px; font-size: 13px; color: var(--muted); cursor: pointer; }
.check input { accent-color: var(--accent); }

/* ---------- 表格 ---------- */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 13.5px; }
th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--border); white-space: nowrap; }
th { color: var(--muted); font-weight: 600; font-size: 12.5px; }
td:first-child { font-weight: 600; }
tr:hover td { background: rgba(99, 102, 241, .05); }

.tag { display: inline-block; padding: 2px 10px; border-radius: 20px; font-size: 12px; }
.tag.ok { background: rgba(52, 211, 153, .12); color: var(--green); }
.tag.off { background: rgba(148, 163, 184, .12); color: var(--muted); }
.tag.kon { background: rgba(251, 191, 36, .12); color: var(--amber); }
.mono { font-family: ui-monospace, Consolas, monospace; font-size: 12px; }

/* ---------- 按钮 ---------- */
.btn {
  background: var(--bg-2); border: 1px solid var(--border); color: var(--text);
  padding: 9px 16px; border-radius: 8px; font-size: 13.5px; cursor: pointer; transition: .15s;
}
.btn:hover { border-color: var(--accent); }
.btn.primary { background: linear-gradient(135deg, var(--accent), #8b5cf6); border: none; font-weight: 600; }
.btn.primary:hover { filter: brightness(1.15); }
.btn.ghost { background: none; }
.btn.danger:hover { border-color: var(--red); color: var(--red); }
.btn:disabled { opacity: .5; cursor: not-allowed; }
.btn.sm { padding: 5px 12px; font-size: 12.5px; }

/* ---------- Toast ---------- */
.toast {
  position: fixed; bottom: 24px; left: 50%; transform: translateX(-50%);
  background: var(--bg-2); border: 1px solid var(--border); border-radius: 10px;
  padding: 12px 22px; font-size: 14px; z-index: 200;
  box-shadow: 0 8px 30px rgba(0,0,0,.4);
}
.toast.err { border-color: var(--red); color: var(--red); }

@media (max-width: 720px) {
  header { padding: 14px 16px; }
  main { padding: 16px; }
  .tabs { padding: 12px 16px 0; overflow-x: auto; }
}