:root {
  --bg: #0b0f16; --fg: #e6edf3; --muted: #9fb0c2;
  --card: #0e1423aa; --border: #263143; --primary: #6aa5ff;
  --primary-ghost: #1a2741; --danger: #f85149; --ok: #2ea043;
  --shadow: 0 10px 30px rgba(0, 0, 0, .35);
  --mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
}
[data-theme="light"] {
  --bg: #f6f8fb; --fg: #0b1220; --muted: #536179;
  --card: #ffffffcc; --border: #d9e1ee; --primary: #2b6fff;
  --primary-ghost: #e6eeff; --danger: #c61e1e; --ok: #1a7f2e;
  --shadow: 0 10px 30px rgba(0, 0, 0, .08);
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  background:
    radial-gradient(1200px 600px at 10% -10%, #12233b 0%, transparent 60%),
    radial-gradient(1000px 600px at 100% 0%, #0f1e33 0%, transparent 50%),
    linear-gradient(180deg, #080c14, var(--bg));
  color: var(--fg);
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Noto Sans, Ubuntu, Cantarell, "Helvetica Neue", Arial;
  letter-spacing: .1px;
  transition: background .25s ease, color .25s ease;
}
[data-theme="light"] body {
  background:
    radial-gradient(1200px 600px at 10% -10%, #e6eeff 0%, transparent 60%),
    radial-gradient(1000px 600px at 100% 0%, #f1f5ff 0%, transparent 50%),
    linear-gradient(180deg, #ffffff, var(--bg));
}

.wrap { max-width: 1200px; margin: 0 auto; padding: 24px 16px 40px; }

header {
  position: sticky; top: 0; z-index: 10; backdrop-filter: blur(10px);
  background: linear-gradient(180deg, var(--bg), transparent);
  padding: 12px 0 10px; margin-bottom: 14px; border-bottom: 1px solid var(--border);
}
.head-inner { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.brand { display: flex; align-items: center; gap: 10px; }

.logo {
  width: 34px; height: 34px; border-radius: 10px;
  background: radial-gradient(60% 60% at 30% 30%, #79a9ff, #325fb3);
  box-shadow: 0 6px 18px rgba(50, 95, 179, .45), inset 0 0 10px #91bbff55;
}

h1 { font-size: 18px; margin: 0; font-weight: 800; letter-spacing: .3px; }

.badges { display: flex; gap: 8px; flex-wrap: wrap; }
.badge {
  font-size: 12px; padding: 4px 10px; border: 1px solid var(--border);
  border-radius: 999px; color: var(--muted);
  background: linear-gradient(180deg, #0f1830, #0d162a);
}
[data-theme="light"] .badge { background: #f7faff; }

.toolbar { display: flex; gap: 8px; align-items: center; }

.btn {
  appearance: none; border: 1px solid var(--border); color: var(--fg);
  background: var(--primary-ghost); padding: 10px 14px; border-radius: 12px;
  cursor: pointer; font-weight: 700; transition: .15s; box-shadow: var(--shadow);
  text-decoration: none; display: inline-flex; align-items: center; gap: 8px;
}
.btn svg { width: 16px; height: 16px; }
.btn:hover { filter: brightness(1.05); }
.btn.primary { background: var(--primary); border-color: var(--primary); color: #fff; }
.btn.ghost { background: #0f172a; }
[data-theme="light"] .btn.ghost { background: #fff; }
.btn:disabled { opacity: .6; cursor: not-allowed; }

.select, .input {
  width: 100%; padding: 12px 14px; border-radius: 12px; border: 1px solid var(--border);
  background: #0e1526; color: var(--fg); font-size: 14px; font-family: var(--mono);
  transition: .15s border, .15s transform;
}
[data-theme="light"] .select, [data-theme="light"] .input { background: #fff; }
.select:focus, .input:focus { outline: none; border-color: var(--primary); transform: translateY(-1px); }

.card {
  background: var(--card); border: 1px solid var(--border); border-radius: 16px;
  padding: 16px; margin-bottom: 16px; box-shadow: var(--shadow);
  transition: background .25s ease, border-color .25s ease;
}

.grid { display: grid; grid-template-columns: repeat(12, 1fr); gap: 12px; }
.col-3 { grid-column: span 3; }
.col-4 { grid-column: span 4; }
.col-5 { grid-column: span 5; }
.col-6 { grid-column: span 6; }
.col-12 { grid-column: span 12; }

.label-wrapper { position: relative; display: inline-flex; align-items: center; margin: 0 0 6px 4px; }
.label { font-size: 12px; color: var(--muted); margin: 0; }

.help-icon {
  display: inline-flex; align-items: center; justify-content: center;
  width: 14px; height: 14px; margin-left: 4px; background: var(--primary);
  color: #fff; border-radius: 50%; font-size: 10px; font-weight: bold; cursor: help;
  position: relative; transition: all .2s ease; line-height: 1;
}
.help-icon:hover { transform: scale(1.1); background: var(--primary); filter: brightness(1.1); }
.help-icon .tooltip {
  visibility: hidden; opacity: 0; position: absolute;
  top: calc(100% + 8px); left: 50%; transform: translateX(-50%);
  width: max-content; max-width: 250px; padding: 8px 12px;
  background: #1a1f2e; color: #e6edf3; font-size: 11px; font-weight: normal;
  line-height: 1.4; border-radius: 8px; box-shadow: 0 4px 12px rgba(0,0,0,.3);
  z-index: 10002; transition: opacity .2s ease, visibility .2s ease; pointer-events: none;
}
[data-theme="light"] .help-icon .tooltip {
  background: #2c3e50; color: #fff; box-shadow: 0 4px 12px rgba(0, 0, 0, .15);
}
.help-icon .tooltip::after {
  content: ''; position: absolute; top: -5px; left: 50%; transform: translateX(-50%);
  border: 5px solid transparent; border-bottom-color: #1a1f2e;
}
[data-theme="light"] .help-icon .tooltip::after { border-bottom-color: #2c3e50; }
.help-icon:hover .tooltip { visibility: visible; opacity: 1; }

.pill {
  padding: 6px 10px; border: 1px solid var(--border); border-radius: 10px;
  background: #0e1526; color: var(--muted); font-size: 12px;
}
[data-theme="light"] .pill { background: #fff; }

.kvs { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.kv { background: #0f162a; border: 1px solid var(--border); border-radius: 14px; padding: 14px; }
[data-theme="light"] .kv { background: #fff; }
.kv .k { font-size: 12px; color: var(--muted); margin-bottom: 6px; }
.kv .v { font-size: 22px; font-weight: 900; }
.ok { color: #2ea043; }
.err { color: #c61e1e; white-space: pre-wrap; font-family: var(--mono); font-size: 12px; }

.row { display: flex; gap: 8px; align-items: center; justify-content: space-between; }
.loading { display: inline-flex; align-items: center; gap: 8px; color: var(--muted); }
.spinner { width: 14px; height: 14px; border: 2px solid var(--border); border-top-color: var(--primary); border-radius: 50%; animation: spin 1s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

.foot { color: var(--muted); font-size: 12px; }
.mono { font-family: var(--mono); }
.fade-in { animation: fade .3s ease; }
@keyframes fade { from { opacity: 0; transform: translateY(4px); } to { opacity: 1; transform: none; } }

#chart { width: 100%; height: 450px; max-width: 100%; }

@media (max-width: 768px) {
  .grid { grid-template-columns: repeat(2, 1fr); }
  .col-3, .col-4, .col-5, .col-6, .col-12 { grid-column: span 2; }
  .head-inner { flex-direction: column; gap: 10px; }
  .brand { flex-direction: column; align-items: center; }
  .btn { width: 100%; padding: 12px; }
  .input, .select { width: 100%; padding: 12px; }
  #chart { height: 400px; }
  .pill { font-size: 10px; }
  .label { font-size: 10px; }
  h1 { font-size: 16px; }
  .help-icon .tooltip { max-width: 200px; left: auto; right: -10px; transform: none; }
  .help-icon .tooltip::after { left: auto; right: 15px; transform: none; }
}

/* === 工具类 === */
.hidden { display: none !important; }
.mt-8 { margin-top: 8px !important; }
.mt-12 { margin-top: 12px !important; }
.mt-14 { margin-top: 14px !important; }
.gap-8 { gap: 8px !important; }