:root {
  color-scheme: light;
  --page: #f6f6f3;
  --surface: #fcfcfb;
  --surface-2: #f0efec;
  --ink: #0b0b0b;
  --ink-2: #52514e;
  --muted: #898781;
  --grid: #e1e0d9;
  --axis: #c3c2b7;
  --border: rgba(11, 11, 11, .10);
  --accent: #2a78d6;
  --accent-ink: #1c5cab;
  --accent-wash: #e6f0fc;
  --series-1: #2a78d6;
  --good: #0ca30c;
  --good-ink: #006300;
  --good-wash: #e5f4e5;
  --warn: #fab219;
  --warn-ink: #8a5a00;
  --warn-wash: #fdf3dc;
  --crit: #d03b3b;
  --crit-ink: #a52a2a;
  --crit-wash: #fbe7e7;
  --radius: 10px;
  --shadow: 0 1px 2px rgba(11, 11, 11, .04), 0 4px 16px rgba(11, 11, 11, .04);
}
@media (prefers-color-scheme: dark) {
  :root {
    color-scheme: dark;
    --page: #0d0d0d;
    --surface: #1a1a19;
    --surface-2: #232321;
    --ink: #f0efec;
    --ink-2: #c3c2b7;
    --muted: #898781;
    --grid: #2c2c2a;
    --axis: #383835;
    --border: rgba(255, 255, 255, .10);
    --accent: #3987e5;
    --accent-ink: #86b6ef;
    --accent-wash: #16263a;
    --series-1: #3987e5;
    --good-ink: #0ca30c;
    --good-wash: #132613;
    --warn-ink: #fab219;
    --warn-wash: #2b2410;
    --crit-ink: #e66767;
    --crit-wash: #2e1616;
    --shadow: none;
  }
}

* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  font: 14px/1.55 system-ui, -apple-system, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  background: var(--page);
  color: var(--ink);
  -webkit-font-smoothing: antialiased;
}
a { color: var(--accent-ink); text-decoration: none; }
a:hover { text-decoration: underline; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 4px; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

/* ---------- 布局 ---------- */
.shell { display: grid; grid-template-columns: 232px 1fr; min-height: 100vh; }
.side {
  background: var(--surface);
  border-right: 1px solid var(--border);
  padding: 20px 14px;
  display: flex; flex-direction: column; gap: 4px;
  position: sticky; top: 0; height: 100vh;
}
.brand { display: flex; align-items: center; gap: 10px; padding: 4px 10px 18px; font-weight: 650; font-size: 15px; }
.brand-mark {
  width: 28px; height: 28px; border-radius: 8px;
  background: var(--accent); color: #fff;
  display: grid; place-items: center; font-size: 13px; font-weight: 700;
}
.nav a {
  display: flex; align-items: center; gap: 10px;
  padding: 8px 10px; border-radius: 8px;
  color: var(--ink-2); font-weight: 500;
}
.nav a:hover { background: var(--surface-2); text-decoration: none; color: var(--ink); }
.nav a[aria-current="page"] { background: var(--accent-wash); color: var(--accent-ink); }
.nav svg { width: 16px; height: 16px; flex: none; }
.side-foot { margin-top: auto; border-top: 1px solid var(--border); padding: 14px 10px 0; font-size: 13px; color: var(--ink-2); }
.side-foot .who { font-weight: 600; color: var(--ink); }
.side-foot form { margin-top: 8px; }

.main { padding: 28px 36px 60px; max-width: 1240px; width: 100%; }
.page-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 16px; margin-bottom: 22px; flex-wrap: wrap; }
.page-head h1 { font-size: 22px; font-weight: 650; margin: 0; letter-spacing: -.01em; }
.page-head p { margin: 4px 0 0; color: var(--ink-2); }
.actions { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }

/* ---------- 卡片 ---------- */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  margin-bottom: 20px;
}
.card-head { display: flex; justify-content: space-between; align-items: center; gap: 12px; padding: 14px 18px; border-bottom: 1px solid var(--border); }
.card-head h2 { font-size: 15px; font-weight: 600; margin: 0; }
.card-head .hint { color: var(--muted); font-size: 12.5px; }
.card-body { padding: 18px; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.grid-2 > .card { margin-bottom: 0; }
.stack { display: grid; gap: 20px; margin-bottom: 20px; }

/* ---------- 指标 ---------- */
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); gap: 14px; margin-bottom: 20px; }
.stat { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 16px 18px; box-shadow: var(--shadow); }
.stat-label { color: var(--ink-2); font-size: 13px; display: flex; align-items: center; gap: 6px; }
.stat-value { font-size: 26px; font-weight: 650; margin-top: 6px; letter-spacing: -.01em; }
.stat-value small { font-size: 14px; font-weight: 500; color: var(--ink-2); margin-left: 2px; }
.stat-sub { color: var(--muted); font-size: 12.5px; margin-top: 2px; }
.stat.hero { border-color: transparent; background: var(--accent); color: #fff; }
.stat.hero .stat-label, .stat.hero .stat-sub, .stat.hero small { color: rgba(255, 255, 255, .82); }
.stat.hero.low { background: var(--crit); }

/* ---------- 表格 ---------- */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th, td { padding: 10px 18px; text-align: left; border-bottom: 1px solid var(--grid); white-space: nowrap; }
th { font-size: 12.5px; font-weight: 600; color: var(--ink-2); background: var(--surface-2); }
tbody tr:last-child td { border-bottom: 0; }
tbody tr:hover td { background: color-mix(in srgb, var(--surface-2) 55%, transparent); }
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; }
td.mono, .mono { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: 12.5px; }
.empty { padding: 36px 18px; text-align: center; color: var(--muted); }
tfoot td { font-weight: 600; background: var(--surface-2); border-bottom: 0; }

/* ---------- 标签 ---------- */
.badge { display: inline-flex; align-items: center; gap: 5px; padding: 2px 9px; border-radius: 999px; font-size: 12px; font-weight: 600; }
.badge::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: currentColor; }
.badge.good { background: var(--good-wash); color: var(--good-ink); }
.badge.warn { background: var(--warn-wash); color: var(--warn-ink); }
.badge.crit { background: var(--crit-wash); color: var(--crit-ink); }
.badge.mute { background: var(--surface-2); color: var(--ink-2); }

/* ---------- 表单 ---------- */
label { display: block; font-weight: 500; font-size: 13px; margin-bottom: 6px; color: var(--ink-2); }
.field { margin-bottom: 14px; }
.field .help { color: var(--muted); font-size: 12px; margin-top: 4px; }
input[type=text], input[type=password], input[type=number], input[type=date], select, textarea {
  width: 100%; padding: 8px 11px; font: inherit; color: var(--ink);
  background: var(--surface); border: 1px solid var(--axis); border-radius: 8px;
}
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-wash); }
.row { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 12px; }
.inline-form { display: flex; gap: 8px; align-items: flex-end; flex-wrap: wrap; }
.inline-form .field { margin-bottom: 0; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  padding: 8px 14px; border-radius: 8px; border: 1px solid var(--axis);
  background: var(--surface); color: var(--ink); font: inherit; font-weight: 550;
  cursor: pointer; white-space: nowrap;
}
.btn:hover { background: var(--surface-2); text-decoration: none; }
.btn.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn.primary:hover { filter: brightness(1.06); }
.btn.danger { color: var(--crit-ink); border-color: color-mix(in srgb, var(--crit) 40%, transparent); }
.btn.danger:hover { background: var(--crit-wash); }
.btn.sm { padding: 4px 10px; font-size: 12.5px; }
.btn.ghost { border-color: transparent; background: transparent; }
.btn.ghost:hover { background: var(--surface-2); }
.btn.block { width: 100%; }
.btn svg { width: 15px; height: 15px; flex: none; }

/* ---------- 提示 ---------- */
.flash { padding: 10px 14px; border-radius: 8px; margin-bottom: 16px; font-weight: 500; display: flex; gap: 8px; align-items: flex-start; }
.flash.success { background: var(--good-wash); color: var(--good-ink); }
.flash.error { background: var(--crit-wash); color: var(--crit-ink); }
.flash.info { background: var(--accent-wash); color: var(--accent-ink); }
.flash svg { width: 16px; height: 16px; flex: none; margin-top: 2px; }

.notice { display: flex; gap: 12px; align-items: flex-start; padding: 14px 16px; border-radius: var(--radius); margin-bottom: 20px; border: 1px solid; }
.notice.crit { background: var(--crit-wash); border-color: color-mix(in srgb, var(--crit) 30%, transparent); color: var(--crit-ink); }
.notice.warn { background: var(--warn-wash); border-color: color-mix(in srgb, var(--warn) 40%, transparent); color: var(--warn-ink); }
.notice svg { width: 18px; height: 18px; flex: none; margin-top: 1px; }
.notice strong { display: block; }

.sync-pill { display: inline-flex; align-items: center; gap: 8px; font-size: 12.5px; color: var(--ink-2); background: var(--surface); border: 1px solid var(--border); border-radius: 999px; padding: 5px 12px; }
.dot { width: 7px; height: 7px; border-radius: 50%; background: var(--good); }
.dot.bad { background: var(--crit); }

.key-cell { display: flex; align-items: center; gap: 6px; }

/* Key 卡片（一个 Key + 其下多个接入点） */
.key-block { padding: 16px 18px; border-bottom: 1px solid var(--grid); }
.key-block:last-child { border-bottom: 0; }
.key-row { display: flex; align-items: center; gap: 18px; flex-wrap: wrap; }
.key-main { flex: 1; min-width: 260px; }
.key-title { display: flex; align-items: center; gap: 8px; }
.key-meta { margin-top: 4px; display: flex; gap: 8px; align-items: center; flex-wrap: wrap; color: var(--ink-2); }
.key-figs { display: flex; gap: 18px; font-variant-numeric: tabular-nums; }
.key-fix { margin-top: 12px; padding: 12px; border-radius: 8px; background: var(--warn-wash); }
.ep-list { margin-top: 12px; border: 1px solid var(--grid); border-radius: 8px; }
.ep-head { padding: 8px 12px; font-size: 12.5px; font-weight: 600; color: var(--ink-2); background: var(--surface-2); border-radius: 8px 8px 0 0; }
.ep-item { display: flex; align-items: center; gap: 10px; padding: 7px 12px; border-top: 1px solid var(--grid); }
.ep-item form { margin-left: auto; }
.ep-empty { padding: 10px 12px; font-size: 13px; border-top: 1px solid var(--grid); }
.ep-add { padding: 10px 12px; border-top: 1px solid var(--grid); }
.muted { color: var(--muted); }
.ink-2 { color: var(--ink-2); }
.tabs { display: flex; gap: 4px; border-bottom: 1px solid var(--border); padding: 0 12px; }
.tabs a { padding: 11px 10px; color: var(--ink-2); font-weight: 550; border-bottom: 2px solid transparent; margin-bottom: -1px; }
.tabs a:hover { color: var(--ink); text-decoration: none; }
.tabs a[aria-current="page"] { color: var(--accent-ink); border-color: var(--accent); }
.seg { display: inline-flex; border: 1px solid var(--axis); border-radius: 8px; overflow: hidden; }
.seg a { padding: 5px 12px; color: var(--ink-2); font-size: 13px; font-weight: 550; }
.seg a + a { border-left: 1px solid var(--axis); }
.seg a:hover { background: var(--surface-2); text-decoration: none; }
.seg a[aria-current="true"] { background: var(--accent-wash); color: var(--accent-ink); }

/* ---------- 图表 ---------- */
.chart { position: relative; padding: 8px 18px 14px; }
.chart svg { display: block; width: 100%; height: auto; overflow: visible; }
.chart .gridline { stroke: var(--grid); stroke-width: 1; }
.chart .baseline { stroke: var(--axis); stroke-width: 1; }
.chart .tick { fill: var(--muted); font-size: 11px; font-variant-numeric: tabular-nums; }
.chart .bar { fill: var(--series-1); pointer-events: none; }
.chart .hit { fill: transparent; cursor: default; }
.chart .hit:hover + .bar, .chart .bar.on { filter: brightness(1.12); }
.chart .tip {
  position: absolute; pointer-events: none; background: var(--ink); color: var(--surface);
  font-size: 12px; padding: 7px 10px; border-radius: 6px; white-space: nowrap;
  transform: translate(-50%, calc(-100% - 8px)); opacity: 0; transition: opacity .1s;
}
.chart .tip b { display: block; font-weight: 600; }
.chart .tip.on { opacity: 1; }

/* ---------- 登录 ---------- */
.auth { min-height: 100vh; display: grid; place-items: center; padding: 24px;
  background: radial-gradient(1200px 600px at 20% -10%, var(--accent-wash), transparent 60%), var(--page); }
.auth-card { width: 100%; max-width: 380px; background: var(--surface); border: 1px solid var(--border); border-radius: 14px; padding: 32px; box-shadow: var(--shadow); }
.auth-card .brand { padding: 0 0 6px; font-size: 18px; }
.auth-card .sub { color: var(--ink-2); margin: 0 0 24px; }
.auth-foot { margin-top: 18px; font-size: 12.5px; color: var(--muted); text-align: center; }

dialog { border: 1px solid var(--border); border-radius: 12px; padding: 0; background: var(--surface); color: var(--ink); width: min(480px, 92vw); box-shadow: 0 20px 60px rgba(0, 0, 0, .2); }
dialog::backdrop { background: rgba(0, 0, 0, .35); }
dialog .card-body { padding: 20px; }
dialog .foot { display: flex; justify-content: flex-end; gap: 8px; padding: 14px 20px; border-top: 1px solid var(--border); }

@media (max-width: 900px) {
  .shell { grid-template-columns: 1fr; }
  .side { position: static; height: auto; flex-direction: row; flex-wrap: wrap; align-items: center; padding: 12px; }
  .brand { padding: 0 8px 0 0; }
  .nav { display: flex; flex-wrap: wrap; gap: 2px; }
  .side-foot { margin: 0 0 0 auto; border: 0; padding: 0; display: flex; gap: 10px; align-items: center; }
  .side-foot form { margin: 0; }
  .main { padding: 20px 16px 48px; }
  .grid-2 { grid-template-columns: 1fr; }
}
@media (prefers-reduced-motion: reduce) { * { transition: none !important; } }