/* 配色沿用真实心动周期（cardiac_cycle/theme.css）与门户：深空藏青底、霓虹青与电光蓝点缀、暖金高亮。 */
:root {
  color-scheme: dark;
  --bg: #050b16;
  --card: rgba(11, 23, 41, 0.84);
  --panel-solid: #0b1729;
  --control: rgba(16, 30, 54, 0.9);
  --control-hover: rgba(69, 200, 245, 0.14);
  --ink: #e9effa;
  --ink2: #c3d5ee;
  --muted: #94a5bf;
  --line: rgba(120, 168, 226, 0.16);
  --line-strong: rgba(120, 168, 226, 0.32);
  --accent: #45c8f5;
  --accent-2: #4f7cff;
  --warm: #e8a33d;
  --on-accent: #04121f;
  /* 曲线色与 cardiac_cycle 的 Wiggers 图一致 */
  --lv: #6ea8ff;
  --ao: #ff8a65;
  --la: #c39bff;
  --vol: #e8b04d;
  --ecg: #5ee0b5;
  --gas: #ff7eb6;
  --spark: #ffd84d;
  /* 机构示意 */
  --blood: #d9635c;
  --flame: #ffb347;
  --fresh: #8fb8e8;
  --exhaust: #64789a;
  --shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
  --radius: 14px;
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -2;
  background:
    radial-gradient(52vw 38vw at 12% -6%, rgba(79, 124, 255, 0.2), transparent 62%),
    radial-gradient(46vw 34vw at 88% 4%, rgba(69, 200, 245, 0.16), transparent 60%),
    radial-gradient(60vw 44vw at 50% 108%, rgba(31, 78, 165, 0.18), transparent 65%),
    linear-gradient(180deg, #060d1a 0%, var(--bg) 42%, #04080f 100%);
}
body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(120, 168, 226, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(120, 168, 226, 0.05) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(120vw 90vh at 50% 0%, rgba(0, 0, 0, 0.9), transparent 78%);
  -webkit-mask-image: radial-gradient(120vw 90vh at 50% 0%, rgba(0, 0, 0, 0.9), transparent 78%);
}
html, body { margin: 0; padding: 0; }
body {
  background: var(--bg);
  color: var(--ink);
  font-family: Inter, "Segoe UI", "PingFang SC", "Microsoft YaHei", "Noto Sans SC", Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  font-size: 15px;
  line-height: 1.55;
}
.top {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 16px;
  flex-wrap: wrap;
  padding: 20px 24px 8px;
  max-width: 1440px;
  margin: 0 auto;
}
.brand h1 { margin: 0; font-size: 26px; letter-spacing: 1px; }
.brand .sub { margin: 4px 0 0; color: var(--ink2); }
.toplinks { display: flex; gap: 16px; }
.toplinks a, .foot a { color: var(--accent); text-decoration: none; }
.toplinks a:hover, .foot a:hover { text-decoration: underline; }

.layout {
  display: grid;
  grid-template-columns: minmax(340px, 1.08fr) minmax(0, 1fr);
  grid-template-areas:
    "engine charts"
    "controls charts"
    "controls notes";
  align-items: start;
  gap: 16px;
  padding: 12px 24px 24px;
  max-width: 1440px;
  margin: 0 auto;
}
.engine-card { grid-area: engine; }
.charts-card { grid-area: charts; }
.controls-card { grid-area: controls; }
.notes-card { grid-area: notes; }
.card {
  background: var(--card);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 14px 16px 16px;
  min-width: 0;
}
.card h2 { margin: 0 0 8px; font-size: 17px; }
.card-head { display: flex; justify-content: space-between; align-items: center; gap: 8px; flex-wrap: wrap; }
.card-head h2 { margin: 0; }
canvas { display: block; width: 100%; height: auto; }
#engine { margin-top: 8px; }
.phase {
  font-weight: 600;
  color: var(--accent);
  background: rgba(69, 200, 245, 0.1);
  border: 1px solid rgba(69, 200, 245, 0.35);
  padding: 2px 10px;
  border-radius: 999px;
  font-size: 14px;
}
.what { margin: 8px 0 6px; color: var(--ink2); min-height: 3.1em; }
.legend { list-style: none; display: flex; flex-wrap: wrap; gap: 6px 14px; padding: 0; margin: 0; font-size: 13px; color: var(--ink2); }
.sw { display: inline-block; width: 12px; height: 12px; border-radius: 3px; margin-right: 6px; vertical-align: -1px; }
.sw.blood { background: var(--blood); }
.sw.flame { background: var(--flame); }
.sw.fresh { background: var(--fresh); }
.sw.exhaust { background: var(--exhaust); }

.seg { display: inline-flex; border: 1px solid var(--line-strong); border-radius: 8px; overflow: hidden; }
.seg button { border: 0; border-radius: 0; padding: 3px 12px; background: var(--control); }
.seg button[aria-pressed="true"] { background: linear-gradient(120deg, var(--accent), var(--accent-2)); color: var(--on-accent); font-weight: 600; }
.stage3d { position: relative; margin-top: 8px; border-radius: 10px; overflow: hidden; background: radial-gradient(120% 90% at 50% 0%, #0f2240 0%, #081222 60%, #050b16 100%); border: 1px solid var(--line); aspect-ratio: 1 / 1.02; }
.stage3d canvas { width: 100%; height: 100%; touch-action: none; cursor: grab; }
.stage3d canvas:active { cursor: grabbing; }
.stage3d .hint { position: absolute; left: 10px; bottom: 8px; font-size: 12px; color: var(--muted); background: rgba(5, 11, 22, 0.7); padding: 1px 8px; border-radius: 6px; pointer-events: none; }
.tools3d { margin-top: 8px; display: grid; gap: 6px; }
.tools3d .row { gap: 6px 10px; }
.tools3d button { padding: 2px 10px; font-size: 14px; }
.tools3d label { font-size: 14px; color: var(--ink2); }
.tools3d .lbl { font-size: 13px; color: var(--muted); }
.part-info { font-size: 14px; color: var(--ink2); background: var(--control); border: 1px solid var(--line); border-radius: 10px; padding: 8px 10px; min-height: 3.6em; }
.part-info b { color: var(--ink); }
.part-info .an { display: block; margin-top: 2px; color: var(--warm); font-size: 13px; }

.side-toggle { font-size: 14px; color: var(--ink2); }
#wiggers { margin-top: 8px; }
.chart-legend { display: flex; flex-wrap: wrap; gap: 4px 14px; font-size: 13px; color: var(--ink2); margin: 6px 0 10px; }
.chart-legend span::before { content: ""; display: inline-block; width: 14px; height: 3px; margin-right: 6px; vertical-align: 3px; background: var(--c); }
.chart-legend span.dash::before { background: repeating-linear-gradient(90deg, var(--c) 0 4px, transparent 4px 7px); }
.pv-row { display: grid; grid-template-columns: minmax(220px, 360px) minmax(0, 1fr); gap: 16px; align-items: start; }
.readouts { display: grid; grid-template-columns: repeat(auto-fill, minmax(132px, 1fr)); gap: 8px; }
.ro { border: 1px solid var(--line); border-radius: 10px; padding: 6px 10px; background: rgba(8, 18, 34, 0.6); }
.ro .k { font-size: 12px; color: var(--muted); }
.ro .v { font-size: 18px; font-weight: 600; font-variant-numeric: tabular-nums; }
.ro .u { font-size: 12px; color: var(--muted); margin-left: 3px; font-weight: 400; }

.row { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
button, select {
  font: inherit;
  border: 1px solid var(--line-strong);
  background: var(--control);
  color: var(--ink);
  border-radius: 8px;
  padding: 5px 12px;
}
button { cursor: pointer; }
button:hover { background: var(--control-hover); border-color: rgba(69, 200, 245, 0.45); }
select { background: var(--panel-solid); }
option { background: var(--panel-solid); color: var(--ink); }
::selection { background: rgba(69, 200, 245, 0.32); color: #fff; }
input[type="checkbox"] { accent-color: var(--accent); }
button:focus-visible, select:focus-visible, input:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.field { display: grid; gap: 4px; margin-top: 12px; }
.note { margin: 6px 0 4px; color: var(--ink2); font-size: 14px; min-height: 2.6em; }
.slider { margin-top: 10px; }
.slider label { font-size: 14px; }
.slider input { width: 100%; accent-color: var(--accent); }
.ends { display: flex; justify-content: space-between; font-size: 12px; color: var(--muted); }
.check { display: block; margin-top: 12px; font-size: 14px; }

.notes-card ol { margin: 0; padding-left: 20px; }
.notes-card li { margin-bottom: 6px; }
.caveat { color: var(--muted); font-size: 13px; margin: 8px 0 0; }
.foot { text-align: center; color: var(--muted); font-size: 13px; padding: 8px 16px 24px; }

/* Laboratory workspace: compact rail, mechanical stage and synchronized traces. */
html { scroll-padding-top: 18px; }
body { padding-bottom: 88px; }
a:focus-visible, summary:focus-visible, .chart-scroll:focus-visible { outline: 2px solid var(--accent); outline-offset: 4px; }
.skip { position: fixed; top: -80px; left: 12px; z-index: 20; padding: 12px; background: var(--panel-solid); color: var(--accent); }
.skip:focus { top: 8px; }
.top { max-width: none; padding: 18px 28px; align-items: center; border-bottom: 1px solid var(--line); background: rgba(5,11,22,.72); }
.brand-line { display: flex; align-items: center; gap: 12px; }
.brand-line img { border: 1px solid var(--line-strong); border-radius: 10px; background: var(--control); }
.eyebrow { margin: 0 0 4px; font-size: 10px; font-weight: 700; letter-spacing: 1.5px; color: var(--muted); }
.brand .eyebrow { font-size: 11px; color: var(--ink2); }
.eyebrow b { color: var(--accent); }
.brand h1 { font-size: 22px; letter-spacing: .5px; line-height: 1.3; }
.brand .sub { font-size: 12px; margin-top: 8px; color: var(--muted); }
.toplinks { gap: 8px; font-size: 12px; }
.toplinks a { padding: 8px 12px; border: 1px solid var(--line); border-radius: 8px; }
.workspace-nav { display: none; }
.layout { max-width: 1900px; padding: 20px 24px 24px; gap: 16px; grid-template-columns: 252px minmax(0,1fr) minmax(0,1.08fr); grid-template-areas: "controls engine charts" "values engine charts" "values notes notes"; align-items: start; }
.values-card { grid-area: values; }
.card { padding: 16px; box-shadow: 0 6px 24px #0002; border-radius: 12px; }
.card h2 { font-size: 15px; margin-bottom: 0; }
.card-head { min-height: 38px; margin-bottom: 12px; }
.panel-heading { display: flex; align-items: center; justify-content: space-between; gap: 8px; margin-bottom: 12px; }
.panel-heading h3 { margin: 0; font-size: 12px; font-weight: 600; }
.micro { margin: 4px 0 10px; font-size: 11px; color: var(--muted); line-height: 1.6; }
.pill { white-space: nowrap; font-size: 10px; padding: 3px 7px; border: 1px solid var(--line-strong); border-radius: 20px; color: var(--accent); }
.live-dot { display: inline-block; width: 7px; height: 7px; border-radius: 50%; background: var(--ecg); box-shadow: 0 0 10px #5ee0b555; flex-shrink: 0; }
body[data-playing="false"] .live-dot { background: var(--warm); box-shadow: none; }
.stage3d { aspect-ratio: 1 / 1.08; margin-top: 0; background: radial-gradient(ellipse at 50% 35%,#142947 0%,#081222 66%); }
.stage3d .phase { position: absolute; top: 12px; left: 12px; font-size: 11px; background: #071626dd; pointer-events: none; }
.stage3d .hint { left: 8px; right: 8px; text-align: center; bottom: 8px; font-size: 10px; padding: 5px; }
.seg { flex-shrink: 0; }
.seg button { min-height: 34px; padding: 4px 10px; font-size: 12px; }
.tools3d { gap: 12px; margin-top: 14px; }
.tools3d .row:first-child { display: grid; grid-template-columns: repeat(5,minmax(0,1fr)); gap: 4px; }
.tools3d .lbl { grid-column: 1/-1; font-size: 10px; letter-spacing: 1px; }
.tools3d button { min-height: 34px; padding: 4px 2px; font-size: 11px; }
button[aria-pressed="true"][data-view] { background: var(--control-hover); border-color: var(--accent); color: var(--accent); }
.tools3d .row:nth-child(2) { gap: 6px; }
.tools3d label, .side-toggle { font-size: 11px; }
.tools3d label { display: flex; align-items: center; min-height: 34px; border: 1px solid var(--line); border-radius: 7px; padding: 3px 6px; background: #08122288; cursor: pointer; }
.part-info { font-size: 12px; padding: 12px; min-height: 80px; border-left: 2px solid var(--accent); }
.part-info .an { font-size: 11px; }
.what { font-size: 12px; line-height: 1.8; padding: 12px 0; margin: 0; min-height: 6em; }
.legend { font-size: 10px; gap: 7px 10px; border-top: 1px solid var(--line); padding-top: 12px; }
.sw { width: 8px; height: 8px; }
.chart-help { font-size: 11px; color: var(--muted); margin: 0 0 8px; }
.chart-help span { display: none; }
.chart-scroll { overflow-x: auto; border: 1px solid var(--line); border-radius: 8px; background: #050d1988; }
#wiggers { margin: 0; }
.chart-legend { font-size: 10px; gap: 7px 12px; margin: 12px 0 20px; }
.pv-row { grid-template-columns: 1fr; gap: 8px; }
.pv-panel { border-top: 1px solid var(--line); padding-top: 16px; }
.pv-panel canvas { max-width: 420px; margin: 0 auto; }
.pv-panel .micro { margin: 0; }
.pv-note { margin: 0; font-size: 11px; color: var(--muted); line-height: 1.7; }
.readouts { grid-template-columns: repeat(2,minmax(0,1fr)); gap: 8px; margin-top: 12px; }
.ro { padding: 10px 8px; min-width: 0; }
.ro .k { font-size: 10px; min-height: 2.8em; line-height: 1.4; }
.ro .v { font-size: 19px; line-height: 1.4; overflow-wrap: anywhere; }
.ro .u { display: block; font-size: 10px; margin: 3px 0 0; }
.ro:nth-child(2) .v, .ro:nth-child(5) .v { color: var(--accent); }
.controls-card { font-size: 12px; }
.field { margin-top: 16px; gap: 8px; color: var(--ink2); }
.field select { width: 100%; min-width: 0; padding: 10px 8px; font-size: 12px; }
.note { font-size: 11px; color: var(--ink2); line-height: 1.8; margin: 10px 0 18px; padding: 10px; background: #45c8f508; border-left: 2px solid var(--accent); }
.parameter-heading { border-top: 1px solid var(--line); padding-top: 16px; font-weight: 600; }
.parameter-heading span { display: block; font-weight: 400; font-size: 10px; color: var(--muted); margin-top: 4px; }
.slider { margin-top: 18px; }
.slider label { display: block; font-size: 11px; line-height: 1.7; }
.slider label b { display: block; color: var(--accent); font-size: 13px; font-variant-numeric: tabular-nums; }
.slider input { margin: 8px 0; height: 20px; cursor: pointer; }
.ends { font-size: 10px; }
.check { font-size: 11px; border-top: 1px solid var(--line); padding-top: 14px; cursor: pointer; }
.check .micro { display: block; margin-left: 24px; }
.notes-card h2 { margin: 0 0 18px; }
.notes-card ol { columns: 2; column-gap: 30px; font-size: 12px; line-height: 1.9; }
.notes-card li { break-inside: avoid; margin: 0 0 14px; }
.caveat { border-top: 1px solid var(--line); padding-top: 14px; font-size: 11px; line-height: 1.8; }
.transport { position: fixed; z-index: 10; bottom: 0; left: 0; right: 0; display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 12px 28px calc(12px + env(safe-area-inset-bottom)); border-top: 1px solid var(--line-strong); background: #081222f2; backdrop-filter: blur(16px); }
.transport-state { display: flex; align-items: center; gap: 10px; font-size: 12px; }
.transport-time { color: var(--muted); min-width: 65px; font-variant-numeric: tabular-nums; }
.transport-buttons { flex-wrap: nowrap; }
.transport button, .transport select { min-height: 40px; font-size: 12px; }
.transport button { min-width: 70px; }
.transport #play { background: linear-gradient(120deg,var(--accent),var(--accent-2)); color: var(--on-accent); font-weight: 700; border-color: transparent; }
.transport #sound[aria-pressed="true"] { color: var(--accent); border-color: var(--accent); background: var(--control-hover); box-shadow: inset 0 0 14px #45c8f512; }
.transport .volume-control input { width: 72px; height: 20px; margin: 0; accent-color: var(--accent); cursor: pointer; }
.transport .volume-control:has(input:disabled) { display: none; }
.transport .hr-control { display: grid; grid-template-columns: 1fr; gap: 1px; min-width: 150px; }
.transport .hr-control > span { display: flex; align-items: baseline; gap: 5px; white-space: nowrap; }
.transport .hr-control strong { color: var(--ink); font-size: 12px; font-variant-numeric: tabular-nums; }
.transport .hr-control small { color: var(--muted); font-size: 9px; font-weight: 400; }
.transport .hr-control em { margin-left: auto; padding: 0 5px; border: 1px solid var(--line-strong); border-radius: 8px; color: var(--accent); font-size: 9px; font-style: normal; }
.transport .hr-control input { width: 150px; height: 18px; margin: 0; accent-color: var(--accent); cursor: pointer; }
.transport label { font-size: 11px; color: var(--muted); display: flex; align-items: center; gap: 8px; }
.transport-hint { font-size: 11px; color: var(--muted); margin: 0; }
button:disabled { opacity: .45; cursor: not-allowed; }
.foot { padding-bottom: 20px; font-size: 11px; }
@media (min-width: 1600px) { .layout { grid-template-columns: 280px minmax(0,1fr) minmax(0,1.04fr); } .stage3d { aspect-ratio: 1 / 1; } }
@media (max-width: 1199px) {
 .layout { grid-template-columns: 240px minmax(0,1fr); grid-template-areas: "controls engine" "values charts" "notes notes"; }
 .stage3d { aspect-ratio: 1.2 / 1; max-height: 560px; }
 .notes-card ol { columns: 2; }
 .transport-hint { display: none; }
}
@media (max-width: 760px) {
 body { padding-bottom: 200px; }
 .top { padding: 14px 16px; gap: 12px; }
 .brand h1 { font-size: 20px; }
 .brand .eyebrow { font-size: 10px; }
 .brand .sub { font-size: 11px; }
 .toplinks { width: 100%; }
 .toplinks a { padding: 6px 10px; font-size: 11px; }
 .workspace-nav { display: flex; gap: 6px; padding: 10px 12px 0; overflow-x: auto; }
 .workspace-nav a { flex: 1; white-space: nowrap; text-align: center; border: 1px solid var(--line); border-radius: 8px; padding: 10px 6px; color: var(--ink2); text-decoration: none; font-size: 11px; }
 .layout { padding: 12px; gap: 12px; grid-template-columns: minmax(0,1fr); grid-template-areas: "engine" "charts" "controls" "values" "notes"; }
 .card { padding: 14px; }
 .stage3d { aspect-ratio: 1 / 1.08; max-height: 560px; }
 .tools3d button, .seg button { min-height: 40px; }
 .tools3d label { min-height: 40px; font-size: 12px; }
 .chart-help span { display: inline; }
 #wiggers { min-width: 560px; }
 .chart-scroll { overscroll-behavior-x: contain; }
 .notes-card ol { columns: 1; font-size: 13px; }
 .slider label { font-size: 13px; display: flex; flex-wrap: wrap; justify-content: space-between; gap: 8px; }
 .slider label b { display: inline; }
 .slider input { height: 28px; }
 .field, .field select, .check { font-size: 13px; }
 .note { font-size: 12px; }
 .readouts { grid-template-columns: repeat(3,minmax(0,1fr)); }
 .transport { padding: 8px 14px calc(8px + env(safe-area-inset-bottom)); flex-wrap: wrap; gap: 8px; }
 .transport-state { width: 100%; justify-content: flex-start; font-size: 11px; }
 .transport-time { margin-left: auto; text-align: right; }
 .transport-buttons { width: 100%; gap: 8px; }
 .transport-buttons button { flex: 1; }
 .transport label { margin-left: auto; }
}
@media (max-width: 360px) { .readouts { grid-template-columns: repeat(2,minmax(0,1fr)); } .brand .sub { font-size: 10px; } }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

.valve-panel { border-top: 1px solid var(--line); padding-top: 16px; margin-top: 14px; }
.valve-readouts { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 8px; }
.valve-value { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 5px; padding: 10px; background: #081222aa; border: 1px solid var(--line); border-radius: 8px; font-size: 11px; }
.valve-value strong { font-size: 18px; font-variant-numeric: tabular-nums; }
.valve-value .valve-mode { color: var(--warm); }
.valve-value[data-engaged="true"] .valve-mode { color: var(--ecg); }
.valve-data, .valve-mode { grid-column: 1/-1; font-size: 10px; color: var(--muted); }
.valve-panel .micro { margin: 10px 0 0; }
@media (max-width: 400px) { .valve-value { padding: 8px; } .valve-data { line-height: 1.6; min-height: 3.2em; } }

@media (max-width: 760px) {
 .transport-buttons { flex-wrap: wrap; gap: 6px; }
 .transport-buttons button { min-width: 52px; padding: 8px; font-size: 11px; }
 .transport label { gap: 4px; margin-left: 0; }
 .transport .volume-control { flex: 0 0 auto; justify-content: center; white-space: nowrap; }
 .transport .hr-control { flex: 1 1 150px; min-width: 140px; }
 .transport .hr-control input { width: 100%; }
 .transport select { width: 66px; padding: 6px; }
}