/* 策略观察台 — no build tooling; tokens first, components after. */
:root {
  --bg: #0b0f14;
  --bg-glow: radial-gradient(1200px 500px at 15% -10%, rgba(56, 189, 248, .07), transparent 60%),
             radial-gradient(900px 400px at 100% 0%, rgba(45, 212, 191, .05), transparent 60%);
  --surface: #11171f;
  --surface-2: #161e28;
  --surface-3: #1c2532;
  --border: #222c39;
  --border-strong: #2e3a4a;
  --text: #e6edf3;
  --text-2: #b4c0cd;
  --muted: #7d8a9b;
  --accent: #38bdf8;
  --accent-2: #2dd4bf;
  --series-1: #3987e5;
  --series-2: #d95926;
  --series-3: #199e70;
  --series-4: #c98500;
  --up: #34d399;
  --up-dim: rgba(52, 211, 153, .12);
  --down: #f87171;
  --down-dim: rgba(248, 113, 113, .12);
  --warn: #fbbf24;
  --warn-dim: rgba(251, 191, 36, .12);
  --ok-dim: rgba(52, 211, 153, .12);
  --shadow: 0 1px 0 rgba(255, 255, 255, .02) inset, 0 8px 24px rgba(0, 0, 0, .25);
  --radius: 14px;
  --radius-sm: 9px;
  --font: -apple-system, BlinkMacSystemFont, "SF Pro Text", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", "Segoe UI", Roboto, sans-serif;
  --mono: "SF Mono", "JetBrains Mono", "Cascadia Mono", Menlo, Consolas, monospace;
  color-scheme: dark;
}

@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) {
    --bg: #f4f6f9;
    --bg-glow: radial-gradient(1200px 500px at 15% -10%, rgba(14, 165, 233, .08), transparent 60%);
    --surface: #ffffff;
    --surface-2: #f7f9fb;
    --surface-3: #eef2f6;
    --border: #e3e8ee;
    --border-strong: #cfd7e1;
    --text: #0f1720;
    --text-2: #334155;
    --muted: #64748b;
    --accent: #0284c7;
    --accent-2: #0d9488;
    --series-1: #2a78d6;
    --series-2: #eb6834;
    --series-3: #1baf7a;
    --series-4: #eda100;
    --up: #059669;
    --up-dim: rgba(5, 150, 105, .1);
    --down: #dc2626;
    --down-dim: rgba(220, 38, 38, .08);
    --warn: #b45309;
    --warn-dim: rgba(217, 119, 6, .12);
    --ok-dim: rgba(5, 150, 105, .1);
    --shadow: 0 1px 2px rgba(15, 23, 32, .04), 0 6px 20px rgba(15, 23, 32, .05);
    color-scheme: light;
  }
}

:root[data-theme="light"] {
  --bg: #f4f6f9;
  --bg-glow: radial-gradient(1200px 500px at 15% -10%, rgba(14, 165, 233, .08), transparent 60%);
  --surface: #ffffff;
  --surface-2: #f7f9fb;
  --surface-3: #eef2f6;
  --border: #e3e8ee;
  --border-strong: #cfd7e1;
  --text: #0f1720;
  --text-2: #334155;
  --muted: #64748b;
  --accent: #0284c7;
  --accent-2: #0d9488;
  --series-1: #2a78d6;
  --series-2: #eb6834;
  --series-3: #1baf7a;
  --series-4: #eda100;
  --up: #059669;
  --up-dim: rgba(5, 150, 105, .1);
  --down: #dc2626;
  --down-dim: rgba(220, 38, 38, .08);
  --warn: #b45309;
  --warn-dim: rgba(217, 119, 6, .12);
  --ok-dim: rgba(5, 150, 105, .1);
  --shadow: 0 1px 2px rgba(15, 23, 32, .04), 0 6px 20px rgba(15, 23, 32, .05);
  color-scheme: light;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg-glow), var(--bg);
  background-attachment: fixed;
  color: var(--text);
  font: 14px/1.55 var(--font);
  -webkit-font-smoothing: antialiased;
}
.num, .mono { font-variant-numeric: tabular-nums; font-feature-settings: "tnum" 1; }
.mono { font-family: var(--mono); font-size: .92em; }
.up { color: var(--up); }
.down { color: var(--down); }
.flat, .muted { color: var(--muted); }
.warn-text { color: var(--warn); }
a { color: var(--accent); }

.wrap { max-width: 1180px; margin: 0 auto; padding: 0 20px 48px; }

/* top bar */
.topbar {
  position: sticky; top: 0; z-index: 10;
  backdrop-filter: saturate(140%) blur(12px);
  -webkit-backdrop-filter: saturate(140%) blur(12px);
  background: color-mix(in srgb, var(--bg) 78%, transparent);
  border-bottom: 1px solid var(--border);
}
.topbar-inner { max-width: 1180px; margin: 0 auto; padding: 12px 20px; display: flex; align-items: center; gap: 14px; }
.brand { display: flex; align-items: center; gap: 10px; min-width: 0; }
.brand-mark {
  width: 30px; height: 30px; border-radius: 9px; flex: none;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  display: grid; place-items: center; color: #04121a;
}
.brand-title { font-weight: 650; font-size: 15px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.brand-sub { color: var(--muted); font-size: 12px; }
.topbar-right { margin-left: auto; display: flex; align-items: center; gap: 10px; }
.fresh { display: inline-flex; align-items: center; gap: 7px; color: var(--muted); font-size: 12.5px; white-space: nowrap; }
.dot { width: 8px; height: 8px; border-radius: 50%; background: var(--muted); flex: none; }
.dot.ok { background: var(--up); box-shadow: 0 0 0 3px var(--ok-dim); }
.dot.warn { background: var(--warn); box-shadow: 0 0 0 3px var(--warn-dim); }
.dot.bad { background: var(--down); box-shadow: 0 0 0 3px var(--down-dim); }
.icon-btn {
  border: 1px solid var(--border); background: var(--surface); color: var(--text-2);
  border-radius: 9px; width: 34px; height: 34px; display: grid; place-items: center; cursor: pointer;
}
.icon-btn:hover { border-color: var(--border-strong); color: var(--text); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
.noscript { margin: 24px auto; max-width: 560px; padding: 14px 16px; border-radius: 10px; border: 1px solid var(--border); background: var(--surface); color: var(--text-2); text-align: center; }

/* summary */
.summary { display: grid; grid-template-columns: 1.15fr 1fr 1fr; gap: 14px; margin: 22px 0 8px; }
.tile {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 16px 18px; box-shadow: var(--shadow); min-width: 0;
}
.tile-label { color: var(--muted); font-size: 12.5px; display: flex; align-items: center; gap: 8px; }
.tile-value { font-size: 26px; font-weight: 680; letter-spacing: -.4px; margin-top: 6px; line-height: 1.2; }
.tile-value small { font-size: 13px; font-weight: 500; color: var(--muted); margin-left: 4px; letter-spacing: 0; }
.tile-foot { margin-top: 8px; color: var(--text-2); font-size: 12.5px; display: flex; flex-wrap: wrap; gap: 4px 12px; }
.status-tile .tile-value { font-size: 20px; display: flex; align-items: center; gap: 10px; }
.issues { margin: 10px 0 0; padding: 0; list-style: none; display: grid; gap: 6px; }
.issues li { font-size: 12.5px; color: var(--text-2); display: flex; gap: 8px; align-items: baseline; }
.issues li::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--warn); flex: none; transform: translateY(-1px); }
.issues li.bad::before { background: var(--down); }

/* sections */
.section { margin-top: 26px; }
.card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  box-shadow: var(--shadow); overflow: hidden; position: relative;
}
.card::before { content: ""; position: absolute; inset: 0 0 auto 0; height: 2px; background: var(--card-accent, transparent); opacity: .85; }
.card.v4 { --card-accent: linear-gradient(90deg, var(--accent), transparent 70%); }
.card.clue { --card-accent: linear-gradient(90deg, var(--accent-2), transparent 70%); }
.card-head {
  display: flex; align-items: center; gap: 12px; flex-wrap: wrap;
  padding: 16px 20px; border-bottom: 1px solid var(--border);
  background: linear-gradient(180deg, var(--surface-2), var(--surface));
}
.card-title { font-size: 16.5px; font-weight: 680; letter-spacing: -.2px; }
.card-sub { color: var(--muted); font-size: 12.5px; }
.card-head .pill { margin-left: auto; }
.card-body { padding: 18px 20px 20px; display: grid; gap: 18px; }

.pill {
  display: inline-flex; align-items: center; gap: 7px; white-space: nowrap;
  font-size: 12.5px; font-weight: 600; padding: 4px 10px; border-radius: 999px;
  border: 1px solid var(--border); color: var(--text-2); background: var(--surface-2);
}
.pill.ok { color: var(--up); border-color: color-mix(in srgb, var(--up) 35%, transparent); background: var(--ok-dim); }
.pill.warn { color: var(--warn); border-color: color-mix(in srgb, var(--warn) 35%, transparent); background: var(--warn-dim); }
.pill.bad { color: var(--down); border-color: color-mix(in srgb, var(--down) 35%, transparent); background: var(--down-dim); }
.tag {
  display: inline-block; font-size: 11.5px; padding: 1px 7px; border-radius: 6px;
  background: var(--surface-3); color: var(--text-2); border: 1px solid var(--border); white-space: nowrap;
}
.tag.long { color: var(--up); background: var(--up-dim); border-color: transparent; }
.tag.short { color: var(--down); background: var(--down-dim); border-color: transparent; }

/* kpis */
.kpis { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 12px; }
.kpi { background: var(--surface-2); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 12px 14px; min-width: 0; }
.kpi-label { color: var(--muted); font-size: 12px; }
.kpi-value { font-size: 19px; font-weight: 650; margin-top: 3px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.kpi-sub { color: var(--muted); font-size: 12px; margin-top: 2px; }
.meter { height: 6px; border-radius: 6px; background: var(--surface-3); margin-top: 9px; overflow: hidden; position: relative; }
.meter > span { position: absolute; inset: 0 auto 0 0; border-radius: 6px; background: var(--accent); }
.meter.warn > span { background: var(--warn); }
.meter.bad > span { background: var(--down); }

/* grid helpers */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.grid-2-wide { display: grid; grid-template-columns: 1.35fr 1fr; gap: 16px; }
.panel { background: var(--surface-2); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 14px 16px; min-width: 0; }
.panel-title { font-size: 13px; font-weight: 650; color: var(--text-2); margin: 0 0 10px; display: flex; align-items: center; gap: 4px 8px; flex-wrap: wrap; }
.panel-title .count { color: var(--muted); font-weight: 500; }
.panel-title .right { margin-left: auto; font-weight: 500; color: var(--muted); font-size: 12px; }

/* gates */
.gates { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 8px; }
.gate { display: flex; align-items: center; gap: 9px; font-size: 13px; padding: 8px 10px; border-radius: 8px; background: var(--surface); border: 1px solid var(--border); }
.gate .mark { width: 18px; height: 18px; border-radius: 50%; display: grid; place-items: center; font-size: 11px; font-weight: 800; flex: none; }
.gate.ok .mark { background: var(--ok-dim); color: var(--up); }
.gate.warn .mark { background: var(--warn-dim); color: var(--warn); }
.gate.bad .mark { background: var(--down-dim); color: var(--down); }
.gate small { color: var(--muted); margin-left: auto; font-size: 11.5px; }

.chips { display: flex; flex-wrap: wrap; gap: 6px; }
.chip { font-size: 12px; padding: 3px 9px; border-radius: 7px; background: var(--surface); border: 1px solid var(--border); color: var(--text-2); }
.chip.off { text-decoration: line-through; color: var(--muted); }

/* tables */
.table-wrap { overflow-x: auto; margin: 0 -2px; }
table { width: 100%; border-collapse: collapse; font-size: 13px; }
th { text-align: left; font-weight: 550; color: var(--muted); font-size: 12px; padding: 7px 8px; border-bottom: 1px solid var(--border); white-space: nowrap; }
td { padding: 8px; border-bottom: 1px solid var(--border); white-space: nowrap; }
tr:last-child td { border-bottom: 0; }
td.r, th.r { text-align: right; }
td.wrap { white-space: normal; overflow-wrap: anywhere; }
.bar-cell { display: flex; align-items: center; gap: 8px; justify-content: flex-end; }
.bar { width: 70px; height: 6px; border-radius: 4px; background: var(--surface-3); position: relative; overflow: hidden; flex: none; }
.bar > span { position: absolute; top: 0; bottom: 0; border-radius: 4px; }
.bar > span.up { background: var(--up); left: 50%; }
.bar > span.down { background: var(--down); right: 50%; }
.bar::after { content: ""; position: absolute; left: 50%; top: -2px; bottom: -2px; width: 1px; background: var(--border-strong); }

.empty { color: var(--muted); font-size: 13px; padding: 14px 4px; text-align: center; }
.empty strong { display: block; color: var(--text-2); font-weight: 600; margin-bottom: 2px; }

/* books */
.books { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.books.three { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.books.four { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.book-foot { font-size: 12px; margin-top: 8px; }
.book { background: var(--surface-2); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 14px 16px; }
.book-head { display: flex; align-items: baseline; gap: 2px 8px; flex-wrap: wrap; }
.book-name { font-weight: 650; font-size: 14px; white-space: nowrap; }
.book-desc { color: var(--muted); font-size: 12px; }
.book-net { font-size: 24px; font-weight: 680; margin-top: 6px; letter-spacing: -.3px; }
.book-net small { font-size: 12.5px; font-weight: 500; color: var(--muted); margin-left: 4px; }
.book-stats { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 8px; margin-top: 12px; }
.stat-label { color: var(--muted); font-size: 11.5px; }
.stat-value { font-size: 14px; font-weight: 600; }

/* chart */
.chart-box { position: relative; padding-bottom: 4px; }
.chart { width: 100%; height: 170px; display: block; overflow: visible; }
.y-label, .x-label { position: absolute; font-size: 10.5px; color: var(--muted); line-height: 1; pointer-events: none; }
.y-label { left: 0; width: calc(var(--pl) - 6px); text-align: right; transform: translateY(-50%); }
.x-label { bottom: 0; }
.x-label.end { right: 0; }
.chart .grid-line { stroke: var(--border); stroke-width: 1; }
.chart .zero-line { stroke: var(--border-strong); stroke-width: 1; stroke-dasharray: 3 4; }
.chart text { fill: var(--muted); font-size: 10.5px; font-family: var(--font); }
.legend { display: flex; gap: 14px; font-size: 12px; color: var(--muted); white-space: nowrap; }
.legend i { display: inline-block; width: 10px; height: 3px; border-radius: 2px; margin-right: 6px; vertical-align: middle; }
.end-label { position: absolute; transform: translateY(calc(-100% - 5px)); font-size: 11.5px; color: var(--text-2); white-space: nowrap; pointer-events: none;
  background: color-mix(in srgb, var(--surface-2) 85%, transparent); padding: 1px 4px; border-radius: 4px; }
.end-label i, .chart-tip i { display: inline-block; width: 10px; height: 2px; border-radius: 2px; margin-right: 5px; vertical-align: middle; }
.chart-box[data-chart] { touch-action: pan-y; cursor: crosshair; }
.chart-hair { position: absolute; top: 6px; bottom: 22px; width: 1px; background: var(--border-strong); pointer-events: none; }
.chart-tip { position: absolute; top: 4px; z-index: 2; pointer-events: none; background: var(--surface-3); border: 1px solid var(--border-strong);
  border-radius: 6px; box-shadow: var(--shadow); padding: 6px 9px; font-size: 12px; color: var(--text-2); white-space: nowrap; }
.chart-tip .tip-head { color: var(--muted); font-size: 11px; margin-bottom: 2px; }
.chart-tip b { color: var(--text); font-weight: 650; }

.compare { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; }
.compare .kpi-value { font-size: 17px; }

/* retired */
details.retired { margin-top: 26px; }
details.retired > summary {
  cursor: pointer; list-style: none; color: var(--muted); font-size: 13px; display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 2px;
}
details.retired > summary::-webkit-details-marker { display: none; }
details.retired > summary::before { content: "▸"; transition: transform .15s; }
details.retired[open] > summary::before { transform: rotate(90deg); }
.retired-list { margin-top: 10px; display: grid; gap: 8px; }
.retired-item { display: grid; grid-template-columns: 210px 110px 1fr; gap: 12px; align-items: baseline; padding: 10px 14px; border: 1px dashed var(--border-strong); border-radius: var(--radius-sm); font-size: 13px; }
.retired-item .name { font-weight: 600; color: var(--text-2); }
.retired-item .when { color: var(--muted); }
.retired-item .why { color: var(--muted); }

footer { margin-top: 34px; color: var(--muted); font-size: 12px; text-align: center; line-height: 1.8; }
.banner { margin-top: 16px; padding: 10px 14px; border-radius: var(--radius-sm); background: var(--down-dim); color: var(--down); font-size: 13px; border: 1px solid color-mix(in srgb, var(--down) 30%, transparent); }

/* skeleton */
.skeleton { height: 120px; border-radius: var(--radius); background: linear-gradient(90deg, var(--surface) 0%, var(--surface-2) 50%, var(--surface) 100%); background-size: 200% 100%; animation: shimmer 1.4s infinite; border: 1px solid var(--border); }
@keyframes shimmer { to { background-position: -200% 0; } }

/* responsive */
@media (max-width: 1020px) {
  .kpis { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .grid-2-wide { grid-template-columns: 1fr; }
}
@media (max-width: 860px) {
  .summary { grid-template-columns: 1fr 1fr; }
  .summary .status-tile { grid-column: 1 / -1; }
  .grid-2, .books, .books.three, .books.four { grid-template-columns: 1fr; }
  td.sym { white-space: normal; }
  td.sym .tag { margin-top: 2px; }
  .retired-item { grid-template-columns: 1fr; gap: 2px; }
}
@media (max-width: 560px) {
  .wrap { padding: 0 12px 40px; }
  .topbar-inner { padding: 10px 12px; }
  .brand-sub { display: none; }
  .summary { grid-template-columns: 1fr; gap: 10px; margin-top: 14px; }
  .tile { padding: 14px 15px; }
  .tile-value { font-size: 23px; }
  .kpis { grid-template-columns: 1fr 1fr; gap: 8px; }
  .kpis > .kpi:last-child:nth-child(odd) { grid-column: 1 / -1; }
  .gates { grid-template-columns: 1fr; }
  .kpi { padding: 10px 11px; }
  .kpi-value { font-size: 17px; }
  .card-head { padding: 14px 14px; }
  .card-head .pill { margin-left: 0; }
  .card-body { padding: 14px; gap: 14px; }
  .panel { padding: 12px; }
  .book-stats { grid-template-columns: 1fr 1fr; }
  .compare { grid-template-columns: 1fr; gap: 8px; }
  .compare .kpi { display: grid; grid-template-columns: minmax(0, 1fr) auto; column-gap: 12px; align-items: center; }
  .compare .kpi-value { grid-column: 2; grid-row: 1 / span 2; margin: 0; }
  .fresh .fresh-text { display: none; }
  td, th { padding: 7px 5px; }
  .hide-sm { display: none; }
}
@media (prefers-reduced-motion: reduce) { .skeleton { animation: none; } }