:root {
  --bg: #f4f2ec;
  --surface: #fffdf9;
  --surface-2: #f7f5ef;
  --ink: #17202a;
  --muted: #66717c;
  --line: #d9d8d2;
  --blue: #315a78;
  --formal: #1f6a50;
  --shadow: #6b52a3;
  --candidate: #a86516;
  --historical: #66717c;
  --warning: #a44a3f;
  --radius: 18px;
  --shadow-soft: 0 10px 30px rgba(24, 32, 40, .07);
  --sidebar-collapsed: 56px;
  --sidebar-expanded: 184px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--bg); color: var(--ink); font-family: Inter, "PingFang SC", "Microsoft YaHei", system-ui, sans-serif; }
a { color: inherit; }
button { font: inherit; }
.metric-unit { font-size: .62em; font-weight: 500; white-space: nowrap; letter-spacing: 0; }

/* Desktop refinement: one hierarchy across the five-page workbench. */
@media (min-width: 1041px) {
  :root { --radius: 14px; --line: #dfe1db; --shadow-soft: 0 3px 12px rgba(24,32,40,.025); }
}

.app-shell { min-height: 100vh; display: grid; grid-template-columns: var(--sidebar-collapsed) minmax(0, 1fr); transition: grid-template-columns .18s ease; }
.app-shell.sidebar-pinned { grid-template-columns: var(--sidebar-expanded) minmax(0, 1fr); }
.sidebar { position: sticky; z-index: 20; top: 0; width: var(--sidebar-collapsed); height: 100vh; padding: 12px 8px; background: #14212b; color: #eef3f6; display: flex; flex-direction: column; overflow-x: hidden; overflow-y: auto; box-shadow: 8px 0 18px rgba(20,33,43,0); transition: width .16s ease .25s, box-shadow .16s ease .25s; }
.app-shell:not(.sidebar-pinned) .sidebar:hover,
.app-shell:not(.sidebar-pinned) .sidebar:focus-within,
.app-shell.sidebar-transient .sidebar,
.app-shell.sidebar-pinned .sidebar { width: var(--sidebar-expanded); box-shadow: 8px 0 18px rgba(20,33,43,.18); transition-delay: 0s; }
.nav-toolbar { min-height: 34px; display: grid; grid-template-columns: minmax(0,1fr) 32px; gap: 6px; align-items: center; margin-bottom: 8px; }
.nav-toolbar-label { padding-left: 8px; color: #eef3f6; font-size: 12px; font-weight: 800; white-space: nowrap; opacity: 0; transition: opacity .1s ease .2s; }
.sidebar-pin { width: 32px; height: 32px; border: 1px solid rgba(255,255,255,.14); border-radius: 9px; background: rgba(255,255,255,.06); color: #d6e0e5; cursor: pointer; font-size: 20px; line-height: 1; }
.sidebar-pin:hover, .sidebar-pin:focus-visible { background: rgba(255,255,255,.12); outline: none; }
.page-nav { display: grid; gap: 7px; margin: 0; }
.architecture-nav-group { display: grid; gap: 5px; padding-top: 8px; border-top: 1px solid rgba(255,255,255,.12); }
.architecture-nav-group:first-child { padding-top: 0; border-top: 0; }
.architecture-nav-group > h2 { height: 0; margin: 0 8px; overflow: hidden; color: #8fa7b5; font-size: 10px; letter-spacing: .12em; white-space: nowrap; opacity: 0; transition: height .12s ease, margin .12s ease, opacity .1s ease; }
.nav-group { display: grid; gap: 4px; }
.nav-link { display: grid; grid-template-columns: 28px minmax(0, 1fr); gap: 8px; align-items: center; min-height: 38px; padding: 6px; border: 1px solid transparent; border-radius: 10px; text-decoration: none; color: #c9d3d9; font-size: 12px; white-space: nowrap; }
.nav-link:hover { background: rgba(255,255,255,.06); }
.nav-link.active { background: #eef4f6; color: #162732; border-color: #fff; font-weight: 700; }
.nav-index { display: grid; place-items: center; width: 28px; height: 26px; border-radius: 8px; background: rgba(255,255,255,.1); font-size: 11px; }
.nav-link.active .nav-index { background: #315a78; color: #fff; }
.nav-sublink { display: grid; grid-template-columns: 28px minmax(0,1fr); gap: 8px; align-items: center; min-height: 30px; padding: 3px 6px; border-left: 1px solid rgba(255,255,255,.18); color: #9fb0ba; font-size: 11px; text-decoration: none; white-space: nowrap; }
.nav-subindex { display: grid; place-items: center; width: 28px; font: 700 9px/1 ui-monospace, SFMono-Regular, Menlo, monospace; }
.nav-sublink:hover { color: #fff; }
.nav-sublink.active { color: #fff; border-left-color: #73a5bd; font-weight: 700; }
.nav-label { min-width: 0; overflow: hidden; text-overflow: ellipsis; opacity: 0; transition: opacity .1s ease .2s; }
.app-shell:not(.sidebar-pinned) .sidebar:hover .nav-toolbar-label,
.app-shell:not(.sidebar-pinned) .sidebar:focus-within .nav-toolbar-label,
.app-shell.sidebar-transient .nav-toolbar-label,
.app-shell.sidebar-pinned .nav-toolbar-label,
.app-shell:not(.sidebar-pinned) .sidebar:hover .nav-label,
.app-shell:not(.sidebar-pinned) .sidebar:focus-within .nav-label,
.app-shell.sidebar-transient .nav-label,
.app-shell.sidebar-pinned .nav-label { opacity: 1; }
.app-shell:not(.sidebar-pinned) .sidebar:hover .architecture-nav-group > h2,
.app-shell:not(.sidebar-pinned) .sidebar:focus-within .architecture-nav-group > h2,
.app-shell.sidebar-transient .architecture-nav-group > h2,
.app-shell.sidebar-pinned .architecture-nav-group > h2 { height: 12px; margin-bottom: 2px; opacity: 1; }

.main { min-width: 0; padding: 34px clamp(22px, 4vw, 64px) 52px; }
.page-header { max-width: 1220px; margin: 0 auto 24px; }
.page-header h1 { margin: 0 0 8px; font-size: clamp(30px, 4vw, 48px); line-height: 1.08; letter-spacing: -.035em; }
.page-header p { margin: 0; max-width: 720px; color: var(--muted); font-size: 15px; line-height: 1.7; }
.window-stack { max-width: 1220px; margin: 0 auto; display: grid; gap: 22px; }
.page-section-marker { scroll-margin-top: 20px; padding: 8px 4px 0; }
.page-section-marker span { color: var(--muted); font-size: 10px; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; }
.page-section-marker h2 { margin: 5px 0 2px; font-size: 21px; }
.page-section-marker p { margin: 0; color: var(--muted); font-size: 12px; }
.page-section-marker.is-anchor-only { height: 0; padding: 0; overflow: hidden; }
.research-window { scroll-margin-top: 20px; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; box-shadow: var(--shadow-soft); position: relative; overflow: hidden; }
.research-window::before { content: ""; position: absolute; inset: 0 auto 0 0; width: 5px; background: var(--historical); }
.research-window.status-formal::before { background: var(--formal); }
.research-window.status-shadow::before { background: var(--shadow); }
.research-window.status-candidate::before { background: var(--candidate); }
.research-window.status-mixed::before { background: linear-gradient(var(--formal), var(--shadow), var(--candidate), var(--historical)); }
.research-window.preserved-window { padding: 20px; background: #f7f8f8; overflow: visible; }
.research-window.preserved-window::before { background: #406f78; }
.merged-process-anchor { display: block; height: 0; overflow: hidden; scroll-margin-top: 24px; }
.research-boundary-note { margin: 14px 0 0; padding: 11px 13px; border-left: 3px solid #8a7956; border-radius: 0 8px 8px 0; background: #f3f1eb; color: #635c50; font-size: 12px; line-height: 1.65; }
.window-head { display: flex; justify-content: space-between; gap: 20px; align-items: flex-start; }
.id-row { display: flex; gap: 9px; flex-wrap: wrap; align-items: center; }
.process-id { border-radius: 7px; padding: 4px 7px; background: #152a38; color: white; font: 700 11px/1.2 ui-monospace, SFMono-Regular, Menlo, monospace; }
.source-ids { color: var(--muted); font: 11px/1.4 ui-monospace, SFMono-Regular, Menlo, monospace; }
.window-head h2 { margin: 10px 0 0; font-size: 24px; letter-spacing: -.02em; }
.preserved-head { padding-bottom: 14px; border-bottom: 1px solid var(--line); }
.window-scope-tags { display: flex; flex-wrap: wrap; gap: 6px; margin: 11px 0 14px; }
.window-scope-tags span { padding: 4px 8px; border: 1px solid #d1dcde; border-radius: 999px; background: #eef3f3; color: #52656a; font-size: 10px; font-weight: 750; letter-spacing: .01em; }
.window-transition { margin: -4px 2px; padding: 10px 14px; border-left: 3px solid #78959c; background: linear-gradient(90deg, rgba(223,233,235,.78), rgba(247,248,248,.15)); display: grid; grid-template-columns: minmax(230px, auto) minmax(0, 1fr); gap: 16px; align-items: center; color: #52656a; }
.window-transition-shift { font-size: 11px; color: #365a63; letter-spacing: .01em; }
.window-transition p { margin: 0; font-size: 12px; line-height: 1.55; }
.adapter-stack { display: grid; gap: 16px; }
.adapter-frame-wrap { border: 1px solid #cbd5d8; border-radius: 14px; overflow: hidden; background: #fff; }
.adapter-frame-wrap.is-failed { border-color: #b85f5f; }
.adapter-frame-label { display: flex; align-items: center; gap: 10px; padding: 8px 11px; border-bottom: 1px solid #dce3e5; background: #edf2f3; color: #42575d; font-size: 10px; }
.adapter-frame-label span { font-weight: 800; }
.adapter-frame-label code { min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.adapter-frame-label b { margin-left: auto; color: #5d6d71; white-space: nowrap; }
.adapter-frame-wrap.is-ready .adapter-frame-label b { color: #2d6c58; }
.adapter-frame-wrap.is-ready .adapter-frame-label { display: none; }
.adapter-frame-wrap.is-failed .adapter-frame-label b { color: #9a3434; }
.source-adapter-frame { display: block; width: 100%; min-height: 160px; border: 0; background: transparent; transition: height .15s ease; }
.status-stack { display: flex; gap: 7px; flex-wrap: wrap; justify-content: flex-end; }
.status-chip, .evidence-chip { border-radius: 999px; padding: 6px 9px; font-size: 10px; font-weight: 800; letter-spacing: .05em; }
.status-chip.formal { background: #e3f2eb; color: var(--formal); }
.status-chip.shadow { background: #eee8fa; color: var(--shadow); }
.status-chip.candidate { background: #fff0db; color: var(--candidate); }
.status-chip.historical { background: #edf0f2; color: var(--historical); }
.status-chip.mixed { background: #e7eef2; color: var(--blue); }
.evidence-chip { background: var(--surface-2); color: var(--muted); border: 1px solid var(--line); }
.window-context { margin-top: 15px; border: 1px solid var(--line); border-radius: 11px; background: var(--surface-2); }
.window-context summary { cursor: pointer; display: flex; justify-content: space-between; gap: 14px; padding: 9px 11px; color: var(--muted); font-size: 11px; }
.window-context summary b { color: var(--ink); }
.context-hint { color: var(--blue); font-weight: 700; white-space: nowrap; }
.window-context-body { padding: 0 11px 11px; }
.window-context-body .status-stack { justify-content: flex-start; }
.window-context-body .boundary { margin-top: 10px; }
.window-summary { max-width: 930px; margin: 14px 0 18px; font-size: 15px; line-height: 1.75; }
.fact-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; }
.fact-card { min-height: 116px; padding: 14px; border: 1px solid var(--line); border-radius: 13px; background: var(--surface-2); }
.fact-card span { display: block; color: var(--muted); font-size: 11px; }
.fact-card strong { display: block; margin-top: 8px; font-size: 20px; line-height: 1.25; }
.fact-card p { margin: 7px 0 0; color: var(--muted); font-size: 11px; line-height: 1.5; }
.tone-formal { border-top: 3px solid var(--formal); }
.tone-shadow { border-top: 3px solid var(--shadow); }
.tone-candidate { border-top: 3px solid var(--candidate); }
.tone-historical { border-top: 3px solid var(--historical); }
.tone-warning { border-top: 3px solid var(--warning); }
.section-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; margin-top: 15px; }
.mini-section { border: 1px solid var(--line); border-radius: 13px; padding: 14px 16px; background: #fbfaf6; }
.mini-section h4 { margin: 0 0 8px; font-size: 13px; }
.mini-section ul { margin: 0; padding-left: 18px; color: var(--muted); font-size: 12px; line-height: 1.65; }
.supplement-details { margin-top: 12px; padding: 10px 13px; border: 1px dashed var(--line); border-radius: 12px; background: #faf9f5; }
.supplement-details summary { cursor: pointer; color: var(--blue); font-size: 12px; font-weight: 700; }
.supplement-details[open] summary { margin-bottom: 10px; }
.supplement-details .section-grid { margin-top: 0; }
.timeline { margin: 16px 0; padding: 14px 16px; border: 1px solid var(--line); border-radius: 13px; background: #f8fafb; display: grid; gap: 9px; }
.timeline-row { display: grid; grid-template-columns: 10px 92px 1fr; gap: 9px; align-items: center; font-size: 12px; color: var(--muted); }
.timeline-row b { color: var(--ink); }
.timeline-dot { width: 9px; height: 9px; border-radius: 50%; background: var(--historical); }
.timeline-dot.tone-formal { background: var(--formal); }
.timeline-dot.tone-shadow { background: var(--shadow); }
.timeline-dot.tone-candidate { background: var(--candidate); }
.timeline-dot.tone-warning { background: var(--warning); }
.supply-revision { display: grid; gap: 16px; }
.supply-revision-summary { display: grid; grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr); gap: 14px; align-items: stretch; }
.supply-revision-summary > div { padding: 14px 16px; border: 1px solid var(--line); border-radius: 13px; background: var(--surface-2); }
.supply-revision-summary span, .supply-revision-summary strong { display: block; }
.supply-revision-summary span { color: var(--muted); font-size: 11px; }
.supply-revision-summary strong { margin-top: 5px; font-size: 23px; }
.supply-revision-summary > b { align-self: center; padding: 8px 12px; border-radius: 999px; background: #e5f2eb; color: #286a4d; font-size: 13px; white-space: nowrap; }
.supply-revision-bridge, .supply-sensitivity { padding: 15px; border: 1px solid var(--line); border-radius: 13px; background: #fbfcfc; }
.supply-revision-bridge > h3, .supply-sensitivity > h3 { margin: 0 0 12px; font-size: 14px; }
.supply-revision-event { padding: 12px 0; border-top: 1px solid #e4e9ec; }
.supply-revision-event:first-of-type { border-top: 0; padding-top: 0; }
.supply-revision-event-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.supply-revision-event-head b { font-size: 13px; }
.supply-revision-event-head strong { font-size: 14px; white-space: nowrap; }
.supply-revision-event.is-positive .supply-revision-event-head strong { color: #2f7356; }
.supply-revision-event.is-negative .supply-revision-event-head strong { color: #a6544c; }
.supply-revision-bar { width: 100%; height: 7px; margin-top: 7px; border-radius: 999px; background: #edf1f3; overflow: hidden; }
.supply-revision-bar i { display: block; height: 100%; border-radius: inherit; }
.supply-revision-event.is-positive .supply-revision-bar i { background: #69a285; }
.supply-revision-event.is-negative .supply-revision-bar i { background: #c9857e; }
.supply-revision-event dl { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; margin: 10px 0 0; }
.supply-revision-event dl div { padding: 9px 10px; border-radius: 9px; background: #f4f7f8; }
.supply-revision-event dt { color: var(--muted); font-size: 10px; font-weight: 750; }
.supply-revision-event dd { margin: 4px 0 0; color: #4f6170; font-size: 11px; line-height: 1.5; }
.supply-sensitivity-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
.supply-sensitivity-grid article { padding: 12px; border: 1px solid #e0e6e9; border-radius: 10px; background: #fff; }
.supply-sensitivity-grid b, .supply-sensitivity-grid strong { display: block; }
.supply-sensitivity-grid strong { margin-top: 5px; color: #76582e; font-size: 15px; }
.supply-sensitivity-grid p { margin: 7px 0 0; color: var(--muted); font-size: 11px; line-height: 1.5; }
.boundary { margin-top: 15px; padding: 13px 15px; border-radius: 12px; background: #f3f1eb; color: var(--muted); display: grid; grid-template-columns: 110px 1fr; gap: 10px; font-size: 12px; line-height: 1.65; }
.boundary b { color: var(--ink); }
.drill-links { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 15px; }
.drill-links a { text-decoration: none; border: 1px solid #b8cad5; color: var(--blue); background: #f0f6f9; border-radius: 9px; padding: 8px 10px; font-size: 12px; font-weight: 700; }
.source-details { margin-top: 14px; border-top: 1px dashed var(--line); padding-top: 12px; }
.source-details summary { cursor: pointer; color: var(--muted); font-size: 12px; font-weight: 700; }
.source-list { display: grid; gap: 7px; margin-top: 10px; }
.source-list a { display: grid; grid-template-columns: 130px minmax(0,1fr) 100px; gap: 10px; align-items: center; text-decoration: none; border-radius: 9px; padding: 9px 10px; background: #f5f7f8; color: var(--muted); font-size: 11px; }
.source-list b { color: var(--ink); }
.source-list code { text-align: right; }
footer { max-width: 1220px; margin: 28px auto 0; color: var(--muted); font-size: 11px; }
.page-actions { display: flex; justify-content: flex-end; gap: 12px; }
.page-actions a, .page-actions button { border: 1px solid var(--line); border-radius: 9px; background: rgba(255,255,255,.65); color: var(--muted); font-size: 11px; cursor: pointer; padding: 7px 9px; text-decoration: none; }
.prototype-meta { margin-top: 13px; border-top: 1px dashed var(--line); padding-top: 10px; }
.prototype-meta summary { cursor: pointer; }
.prototype-meta span, .prototype-meta a { display: inline-block; margin: 8px 12px 0 0; }

@media (min-width: 1041px) {
  .main { padding: 30px clamp(28px, 3vw, 48px) 48px; }
  .page-header { margin-bottom: 26px; }
  .page-header h1 { font-size: 34px; line-height: 1.3; letter-spacing: -.025em; }
  .page-header p { font-size: 14px; line-height: 1.7; }
  .window-stack { gap: 26px; }
  .research-window, .research-window.preserved-window { padding: 22px 24px; background: var(--surface); }
  .research-window::before { width: 3px; }
  .window-head h2 { font-size: 22px; line-height: 1.4; margin-top: 9px; }
  .preserved-head { padding-bottom: 16px; border-bottom-color: #e8e9e3; }
  .process-id { background: #edf1f2; color: #405763; font-weight: 650; }
  .source-ids { color: #738087; }
  .adapter-frame-wrap { border-color: #e4e9e8; border-radius: 10px; }
  .window-scope-tags span { font-size: 11px; padding: 5px 9px; }
  .window-transition { padding: 12px 16px; }
  .window-context summary, .source-list a { font-size: 12px; }
  .source-list a { padding: 11px 12px; grid-template-columns: 160px minmax(0,1fr) 110px; }
  .source-list b { overflow-wrap: anywhere; }
  .supply-revision { gap: 20px; font-variant-numeric: tabular-nums; }
  .supply-revision-summary > div { padding: 18px 20px; background: #f6f7f3; }
  .supply-revision-summary > div:last-child { background: #edf4ef; border-color: #cddfd3; }
  .supply-revision-summary span { font-size: 12px; }
  .supply-revision-summary strong { font-size: 27px; line-height: 1.4; }
  .supply-revision-bridge { padding: 0; border: 0; background: transparent; }
  .supply-revision-bridge > h3, .supply-sensitivity > h3 { font-size: 16px; margin-bottom: 16px; }
  .supply-revision-event { padding: 20px 0; border-top-color: #dfe6e1; }
  .supply-revision-event-head b { font-size: 15px; }
  .supply-revision-event-head strong { font-size: 18px; }
  .supply-revision-bar { height: 5px; margin-top: 10px; }
  .supply-revision-event dl { grid-template-columns: 1.2fr .9fr 1.2fr; gap: 16px; margin-top: 14px; }
  .supply-revision-event dl div { padding: 10px 12px; background: #f6f7f4; border-radius: 6px; }
  .supply-revision-event dl div:last-child { background: #eef3f1; }
  .supply-revision-event dt { font-size: 11px; color: #697873; }
  .supply-revision-event dd { font-size: 13px; line-height: 1.75; color: #374e53; }
  .supply-sensitivity { background: #f9f8f3; border-color: #e5e2d8; padding: 18px; }
  .supply-sensitivity-grid p { font-size: 12px; line-height: 1.7; }
  .supply-sensitivity-grid strong { font-size: 17px; }
  .fact-card strong { font-variant-numeric: tabular-nums; }
  .fact-card p { font-size: 12px; line-height: 1.6; }
}
a:focus-visible, button:focus-visible, summary:focus-visible {
  outline: 3px solid #85adbe; outline-offset: 3px;
}

@media (max-width: 1040px) {
  .app-shell, .app-shell.sidebar-pinned { grid-template-columns: 1fr; }
  .sidebar,
  .app-shell:not(.sidebar-pinned) .sidebar:hover,
  .app-shell:not(.sidebar-pinned) .sidebar:focus-within,
  .app-shell.sidebar-transient .sidebar,
  .app-shell.sidebar-pinned .sidebar { position: static; width: auto; height: auto; padding: 16px; box-shadow: none; transition: none; }
  .nav-toolbar { display: none; }
  .page-nav { grid-template-columns: repeat(4, minmax(0, 1fr)); margin: 14px 0 0; }
  .architecture-nav-group { align-content: start; }
  .architecture-nav-group > h2 { height: 12px; margin-bottom: 2px; opacity: 1; }
  .nav-link { grid-template-columns: 24px 1fr; padding: 8px; }
  .nav-label { opacity: 1; }
  .fact-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 760px) {
  .supply-revision-summary, .supply-revision-event dl, .supply-sensitivity-grid { grid-template-columns: 1fr; }
  .supply-revision-summary > b { justify-self: start; }
}

@media (max-width: 680px) {
  .main { padding: 22px 14px 36px; }
  .page-nav { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .research-window { padding: 18px 16px; }
  .research-window.preserved-window { padding: 14px 10px; }
  .window-head { display: block; }
  .window-transition { grid-template-columns: 1fr; gap: 4px; }
  .adapter-frame-label { align-items: flex-start; flex-wrap: wrap; }
  .adapter-frame-label code { width: 100%; order: 3; }
  .adapter-frame-label b { margin-left: 0; }
  .status-stack { justify-content: flex-start; margin-top: 12px; }
  .fact-grid, .section-grid { grid-template-columns: 1fr; }
  .source-list a { grid-template-columns: 1fr; }
  .source-list code { text-align: left; }
  .boundary { grid-template-columns: 1fr; }
}