:root {
  --bg: #f4f6f5;
  --panel: #ffffff;
  --panel-2: #f8faf9;
  --ink: #15201d;
  --ink-2: #4a5a55;
  --ink-3: #7c8a86;
  --line: #dde4e1;
  --line-2: #c9d3cf;
  --accent: #0f766e;
  --accent-soft: #e2f3f0;
  --main: #0f766e;
  --main-bg: #ecf7f5;
  --water: #2563eb;
  --water-bg: #eef3fe;
  --utility: #b45309;
  --utility-bg: #fdf4e7;
  --feed: #7c3aed;
  --feed-bg: #f3eefe;
  --danger: #dc2626;
  --danger-bg: #fdecec;
  --warn: #d97706;
  --warn-bg: #fff7e0;
  --ok: #15803d;
  --shadow: 0 1px 2px rgba(16, 24, 22, .06), 0 4px 16px rgba(16, 24, 22, .05);
  --radius: 10px;
  --font: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", system-ui, sans-serif;
  --mono: "SF Mono", ui-monospace, Menlo, Consolas, monospace;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0d1412; --panel: #141d1a; --panel-2: #18231f; --ink: #e6efec; --ink-2: #a9b8b3; --ink-3: #7d8d88;
    --line: #253430; --line-2: #31433e; --accent: #2dd4bf; --accent-soft: #123430;
    --main: #2dd4bf; --main-bg: #10302b; --water: #60a5fa; --water-bg: #12233d; --utility: #fbbf24; --utility-bg: #33270e;
    --feed: #a78bfa; --feed-bg: #251c3d; --danger: #f87171; --danger-bg: #3a1717; --warn: #fbbf24; --warn-bg: #352a0b; --ok: #4ade80;
    --shadow: 0 1px 2px rgba(0,0,0,.4); color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #0d1412; --panel: #141d1a; --panel-2: #18231f; --ink: #e6efec; --ink-2: #a9b8b3; --ink-3: #7d8d88;
  --line: #253430; --line-2: #31433e; --accent: #2dd4bf; --accent-soft: #123430;
  --main: #2dd4bf; --main-bg: #10302b; --water: #60a5fa; --water-bg: #12233d; --utility: #fbbf24; --utility-bg: #33270e;
  --feed: #a78bfa; --feed-bg: #251c3d; --danger: #f87171; --danger-bg: #3a1717; --warn: #fbbf24; --warn-bg: #352a0b; --ok: #4ade80;
  --shadow: 0 1px 2px rgba(0,0,0,.4); color-scheme: dark;
}

* { box-sizing: border-box; }
html, body { margin: 0; }
body { background: var(--bg); color: var(--ink); font: 14px/1.55 var(--font); }
button, input, select { font: inherit; color: inherit; }
button { cursor: pointer; border: 1px solid var(--line-2); background: var(--panel); border-radius: 8px; padding: 6px 12px; }
button:hover { border-color: var(--accent); }
button.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
:root[data-theme="dark"] button.primary { color: #062420; }
button.ghost { background: transparent; border-color: transparent; }
input, select { border: 1px solid var(--line-2); background: var(--panel); border-radius: 8px; padding: 6px 10px; min-width: 0; }
input:focus, select:focus, button:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; }

/* 顶栏 */
.topbar { position: sticky; top: 0; z-index: 30; display: flex; align-items: center; gap: 24px; padding: 10px 20px;
  background: color-mix(in srgb, var(--panel) 92%, transparent); backdrop-filter: blur(8px); border-bottom: 1px solid var(--line); }
.brand { display: flex; align-items: center; gap: 12px; min-width: 0; }
.logo { display: grid; place-items: center; width: 38px; height: 38px; border-radius: 9px; background: var(--accent); color: #fff;
  font: 700 12px var(--mono); letter-spacing: .5px; flex: none; }
h1 { margin: 0; font-size: 17px; letter-spacing: .5px; }
.docmeta { margin: 0; font-size: 12px; color: var(--ink-3); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.tabs { display: flex; gap: 4px; background: var(--panel-2); padding: 4px; border-radius: 10px; border: 1px solid var(--line); }
.tabs button { border: 0; background: transparent; padding: 6px 14px; color: var(--ink-2); }
.tabs button.active { background: var(--panel); color: var(--accent); font-weight: 600; box-shadow: var(--shadow); }
.top-actions { margin-left: auto; display: flex; align-items: center; gap: 8px; }
.who { font-size: 12px; color: var(--ink-2); }
.who a { color: var(--accent); cursor: pointer; }

main { padding: 16px 20px 40px; max-width: 1680px; margin: 0 auto; }
.view { display: none; }
.view.active { display: block; }

/* 流程图 */
.flow-toolbar { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 8px 16px; margin-bottom: 10px; }
.legend { display: flex; flex-wrap: wrap; gap: 6px 16px; font-size: 12px; color: var(--ink-2); }
.legend span { display: inline-flex; align-items: center; gap: 6px; }
.lg { width: 14px; height: 10px; border-radius: 3px; border: 1.5px solid; display: inline-block; }
.lg.main { border-color: var(--main); background: var(--main-bg); }
.lg.water { border-color: var(--water); background: var(--water-bg); }
.lg.utility { border-color: var(--utility); background: var(--utility-bg); }
.lg.feed { border-color: var(--feed); background: var(--feed-bg); }
.lg.constraint { border-color: var(--danger); background: var(--danger-bg); border-width: 2.5px; }
.dot-unc { width: 8px; height: 8px; border-radius: 50%; background: var(--warn); display: inline-block; }
.flow-hint { font-size: 12px; color: var(--ink-3); }
.flow-wrap { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); overflow-x: auto; }
#flowSvg { display: block; width: 100%; min-width: 980px; height: auto; }
#flowSvg .node { cursor: pointer; }
#flowSvg .node rect.box { transition: filter .15s; }
#flowSvg .node:hover rect.box, #flowSvg .node:focus rect.box { filter: brightness(.96) drop-shadow(0 2px 6px rgba(0,0,0,.15)); }
#flowSvg .node:focus { outline: none; }
#flowSvg .t-name { font-size: 13px; font-weight: 600; fill: var(--ink); }
#flowSvg .t-sub { font-size: 10.5px; fill: var(--ink-2); }
#flowSvg .t-cap { font-size: 10.5px; font-family: var(--mono); }
#flowSvg .band-label { font-size: 12px; font-weight: 600; fill: var(--ink-3); letter-spacing: 1px; }
#flowSvg .edge { fill: none; stroke: var(--line-2); stroke-width: 1.6; }
#flowSvg .edge.water { stroke: var(--water); opacity: .55; }
#flowSvg .edge.feed { stroke: var(--feed); stroke-dasharray: 4 3; }
#flowSvg .dim { opacity: .25; }
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 10px; margin-top: 12px; }
.stat { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 10px 14px; }
.stat b { display: block; font: 600 22px var(--mono); color: var(--ink); }
.stat span { font-size: 12px; color: var(--ink-3); }

/* 抽屉 */
.drawer { position: fixed; top: 0; right: 0; height: 100vh; width: min(760px, 100vw); background: var(--panel); z-index: 50;
  border-left: 1px solid var(--line); box-shadow: -8px 0 32px rgba(0,0,0,.12); transform: translateX(100%); transition: transform .22s ease;
  display: flex; flex-direction: column; }
.drawer.open { transform: none; }
.scrim { position: fixed; inset: 0; background: rgba(0,0,0,.25); z-index: 40; opacity: 0; pointer-events: none; transition: opacity .2s; }
.scrim.open { opacity: 1; pointer-events: auto; }
.drawer-h { display: flex; justify-content: space-between; align-items: flex-start; padding: 16px 20px 10px; border-bottom: 1px solid var(--line); }
.drawer-h h2 { margin: 2px 0 0; font-size: 20px; }
.crumb { font-size: 12px; color: var(--ink-3); }
.d-toc { padding: 10px 20px; border-bottom: 1px solid var(--line); font-size: 12px; color: var(--ink-2); display: flex; flex-wrap: wrap; gap: 6px 18px; }
.d-toc b { font-family: var(--mono); color: var(--ink); }
.drawer-b { overflow-y: auto; padding: 14px 20px 40px; }
.step-h { margin: 18px 0 8px; font-size: 13px; color: var(--accent); font-weight: 600; display: flex; align-items: center; gap: 8px; }
.step-h:first-child { margin-top: 0; }
.step-h::before { content: ""; width: 4px; height: 14px; border-radius: 2px; background: var(--accent); }
.item-card { border: 1px solid var(--line); border-radius: var(--radius); margin-bottom: 10px; overflow: hidden; }
.item-card.unc { border-color: var(--warn); }
.item-title { padding: 8px 12px; background: var(--panel-2); border-bottom: 1px solid var(--line); font-weight: 600; display: flex; gap: 8px; align-items: baseline; flex-wrap: wrap; }
.item-title .pg { font-size: 11px; color: var(--ink-3); font-weight: 400; margin-left: auto; }
.kv { margin: 0; display: grid; grid-template-columns: 108px 1fr; font-size: 13px; }
.kv dt { padding: 6px 12px; color: var(--ink-3); border-bottom: 1px dashed var(--line); }
.kv dd { margin: 0; padding: 6px 12px; border-bottom: 1px dashed var(--line); white-space: pre-line; word-break: break-word; }
.kv dt:nth-last-of-type(1), .kv dd:last-of-type { border-bottom: 0; }
.kv dd.key { color: var(--ink); font-weight: 500; }
.kv dd.abn { color: var(--danger); }
.unc-note { background: var(--warn-bg); color: var(--warn); font-size: 12px; padding: 6px 12px; border-top: 1px solid var(--warn); }

/* 总表 */
.filters { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin-bottom: 10px; }
.filters #q { flex: 1 1 260px; }
.chk { display: inline-flex; align-items: center; gap: 4px; font-size: 13px; color: var(--ink-2); }
.count { font-size: 12px; color: var(--ink-3); margin-left: auto; }
.table-wrap { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); overflow: auto; max-height: calc(100vh - 150px); box-shadow: var(--shadow); }
.table-wrap.short { max-height: none; }
table { border-collapse: separate; border-spacing: 0; width: 100%; font-size: 12.5px; }
#cpTable { min-width: 2100px; }
th { position: sticky; top: 0; z-index: 2; background: var(--panel-2); color: var(--ink-2); font-weight: 600; text-align: left; padding: 8px; border-bottom: 1px solid var(--line-2); border-right: 1px solid var(--line); white-space: nowrap; }
th small { font-weight: 400; color: var(--ink-3); }
td { padding: 7px 8px; border-bottom: 1px solid var(--line); border-right: 1px solid var(--line); vertical-align: top; white-space: pre-line; word-break: break-word; }
td.proc { font-weight: 600; background: var(--panel-2); position: sticky; left: 0; z-index: 1; min-width: 92px; }
td.proc a { color: var(--accent); cursor: pointer; text-decoration: none; }
td.step { background: var(--panel-2); min-width: 84px; }
td.abn { color: var(--danger); min-width: 260px; }
td.std { min-width: 220px; }
td.unc { background: var(--warn-bg); }
td.unc::after { content: " ⚠"; color: var(--warn); }
mark { background: #fde68a; color: inherit; border-radius: 2px; }
.col-w-records { min-width: 150px; } .col-w-doc { min-width: 160px; }

/* TOC */
.toc-head { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 10px; margin-bottom: 12px; align-items: center; }
.toc-controls { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; }
.toc-controls label { display: inline-flex; gap: 6px; align-items: center; font-size: 13px; color: var(--ink-2); }
.toc-controls #demand { width: 120px; }
.msg { font-size: 12px; color: var(--ok); }
.msg.err { color: var(--danger); }
.banner { font-size: 12px; padding: 6px 10px; border-radius: 8px; background: var(--accent-soft); color: var(--accent); }
.banner.off { background: var(--warn-bg); color: var(--warn); }
.toc-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.card { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); padding: 14px 16px; min-width: 0; }
.card.span2 { grid-column: span 2; }
.card-h h2 { margin: 0; font-size: 15px; }
.card-h p { margin: 2px 0 10px; font-size: 12px; color: var(--ink-3); }
#tocTable td, #tocTable th { white-space: nowrap; }
#tocTable td { padding: 4px 6px; vertical-align: middle; }
#tocTable input { width: 88px; padding: 4px 6px; font-family: var(--mono); font-size: 12px; }
#tocTable input.note { width: 160px; font-family: var(--font); }
#tocTable td.num { font-family: var(--mono); text-align: right; }
#tocTable tr.constraint td { background: var(--danger-bg); }
#tocTable tr.constraint td:first-child::after { content: "瓶颈"; margin-left: 6px; font-size: 11px; color: #fff; background: var(--danger); padding: 1px 6px; border-radius: 10px; }
#tocTable tr.group td { background: var(--panel-2); color: var(--ink-3); font-size: 12px; font-weight: 600; }
.over { color: var(--danger); font-weight: 600; }
.chart { width: 100%; min-height: 260px; }
.chart svg { width: 100%; height: auto; display: block; }
.chart .empty { padding: 60px 0; text-align: center; color: var(--ink-3); font-size: 13px; }
.action-form { display: grid; grid-template-columns: 160px 130px 1fr 120px auto; gap: 8px; margin-bottom: 10px; }
.action-list { display: grid; gap: 6px; }
.action { display: grid; grid-template-columns: 96px 110px 92px 1fr 90px 120px; gap: 10px; align-items: center; font-size: 13px; padding: 8px 10px; border: 1px solid var(--line); border-radius: 8px; }
.action .stp { font-size: 12px; padding: 2px 8px; border-radius: 10px; background: var(--accent-soft); color: var(--accent); text-align: center; }
.action select { padding: 2px 6px; font-size: 12px; }
.action .meta { font-size: 11px; color: var(--ink-3); }
.action.done { opacity: .6; }

dialog { border: 1px solid var(--line); border-radius: 12px; background: var(--panel); color: var(--ink); padding: 20px 22px; width: min(380px, 92vw); }
dialog::backdrop { background: rgba(0,0,0,.35); }
dialog h3 { margin: 0 0 4px; }
dialog label { display: grid; gap: 4px; margin: 10px 0; font-size: 13px; color: var(--ink-2); }
.muted { color: var(--ink-3); font-size: 12px; margin: 0; }
.err { color: var(--danger); font-size: 12px; min-height: 1em; margin: 4px 0 0; }
.dlg-actions { display: flex; justify-content: flex-end; gap: 8px; margin-top: 8px; }

@media (max-width: 900px) {
  .topbar { flex-wrap: wrap; gap: 10px; padding: 10px 16px; }
  .tabs { order: 3; width: 100%; overflow-x: auto; }
  main { padding: 12px 16px 32px; }
  .toc-grid { grid-template-columns: 1fr; }
  .card.span2 { grid-column: auto; }
  .action-form { grid-template-columns: 1fr 1fr; }
  .action { grid-template-columns: 1fr 1fr; }
  .kv { grid-template-columns: 88px 1fr; }
}