:root {
  --c-bg:       var(--paper);
  --c-bg-alt:   var(--paper-2);
  --c-surface:  var(--paper);
  --c-border:   var(--ink-12);
  --c-text:     var(--ink);
  --c-text2:    var(--ink-70);
  --c-accent:   #E0291B;
  --c-red:      #B71F13;
  --c-green:    #466858;
  --c-yellow:   #9B7528;
  --c-dark:     #0a0f1a;
  --c-dark2:    #141b2d;
  --ff:         'Archivo', 'Noto Sans SC', system-ui, sans-serif;
  --max-w:      1240px;
  --ease:       cubic-bezier(.25,.46,.45,.94);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { font-size: 16px; scroll-behavior: smooth; }
body {
  font-family: var(--ff);
  color: var(--c-text);
  background: var(--c-bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

/* ── Typography ─────────────────────────────────────── */
h1, h2, h3, h4 { line-height: 1.25; font-weight: 700; }
h1 { font-size: clamp(2rem, 5vw, 3.2rem); letter-spacing: -0.03em; }
h2 { font-size: clamp(1.4rem, 3vw, 1.8rem); letter-spacing: -0.02em; }
h3 { font-size: 1.1rem; font-weight: 600; }

p  { max-width: 65ch; }
a  { color: var(--c-accent); text-decoration: none; }

.label { font-size: .75rem; font-weight: 600; text-transform: uppercase; letter-spacing: .08em; color: var(--c-text2); }
.stat-big { font-size: clamp(2.4rem, 6vw, 3.6rem); font-weight: 800; letter-spacing: -0.04em; line-height: 1; }
.stat-unit { font-size: .9rem; font-weight: 500; color: var(--c-text2); margin-top: .25rem; }

/* ── Layout ─────────────────────────────────────────── */
.wrap { max-width: var(--max-w); margin: 0 auto; padding: 0 1.5rem; }
section { padding: 5rem 0; }
section:nth-child(even) { background: var(--c-bg-alt); }

.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; }
.grid-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 1.5rem; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; }

@media (max-width: 700px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  section { padding: 3rem 0; }
}

/* ── Hero ───────────────────────────────────────────── */
.report-hero {
  background: linear-gradient(135deg, var(--c-dark) 0%, var(--c-dark2) 100%);
  color: #fff;
  padding: 6rem 0 5rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.report-hero::after {
  content: '';
  position: absolute; inset: 0;
  background: radial-gradient(ellipse at 50% 0%, rgba(37,99,235,.12) 0%, transparent 70%);
  pointer-events: none;
}
.report-hero h1 { color: #fff; margin-bottom: .75rem; }
.report-hero .subtitle { color: rgba(255,255,255,.6); font-size: 1.05rem; max-width: 480px; margin: 0 auto 3rem; }
.hero-stats { display: flex; justify-content: center; gap: 3rem; flex-wrap: wrap; position: relative; z-index: 1; }
.hero-stat .stat-big { color: #fff; }
.hero-stat .stat-unit { color: rgba(255,255,255,.5); }

.hero-actions {
  display: flex; justify-content: center; gap: .75rem; flex-wrap: wrap;
  margin-top: 2.5rem; position: relative; z-index: 1;
}
.report-hero a.hero-btn {
  display: inline-flex; align-items: center; gap: .5rem;
  padding: .65rem 1.4rem;
  font-size: .9rem; font-weight: 600;
  border-radius: 8px;
  text-decoration: none;
  transition: transform .15s var(--ease), box-shadow .15s var(--ease), background .15s;
  color: rgba(255,255,255,.85);
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.15);
}
.report-hero a.hero-btn:hover {
  transform: translateY(-1px);
  background: rgba(255,255,255,.14);
  color: #fff;
  box-shadow: 0 4px 16px rgba(0,0,0,.2);
}
.report-hero a.hero-btn.hero-btn--primary {
  background: var(--c-accent);
  border-color: var(--c-accent);
  color: #fff;
}
.report-hero a.hero-btn.hero-btn--primary:hover {
  background: #1d4ed8;
  border-color: #1d4ed8;
  color: #fff;
}

/* ── Sticky Nav ─────────────────────────────────────── */
.report-nav {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--c-border);
  transition: box-shadow .3s var(--ease);
}
.report-nav.scrolled { box-shadow: 0 2px 12px rgba(0,0,0,.06); }
.report-nav-inner {
  max-width: var(--max-w); margin: 0 auto; padding: 0 1.5rem;
  display: flex; align-items: center; gap: .15rem;
  overflow-x: auto; -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}
.report-nav-inner::-webkit-scrollbar { display: none; }
.report-nav a {
  padding: .75rem .7rem;
  font-size: .78rem; font-weight: 600; white-space: nowrap;
  color: var(--c-text2);
  border-bottom: 2px solid transparent;
  transition: color .2s, border-color .2s;
}
.report-nav a:hover { color: var(--c-text); }
.report-nav a.active { color: var(--c-accent); border-bottom-color: var(--c-accent); }

/* ── Finding Section Header ─────────────────────────── */
.finding-hdr {
  display: flex; align-items: flex-start; gap: 1rem;
  margin-bottom: 2rem;
}
.finding-num {
  flex-shrink: 0;
  width: 2.4rem; height: 2.4rem;
  display: flex; align-items: center; justify-content: center;
  background: var(--c-accent); color: #fff;
  font-size: .85rem; font-weight: 700;
  border-radius: .5rem;
}
.finding-hdr p { color: var(--c-text2); margin-top: .35rem; }

/* ── Cards & Panels ─────────────────────────────────── */
.card {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: .75rem;
  padding: 1.5rem;
}
.card-title { font-size: .8rem; font-weight: 600; color: var(--c-text2); margin-bottom: 1rem; text-transform: uppercase; letter-spacing: .06em; }

.callout {
  background: #E8E2D2;
  border-left: 3px solid var(--c-accent);
  padding: 1rem 1.25rem;
  border-radius: 0 .5rem .5rem 0;
  margin: 1.5rem 0;
  font-size: .92rem;
  color: #14110C;
}
.callout.warn {
  background: #E8DFC9;
  border-left-color: var(--c-yellow);
  color: #686158;
}

/* ── Chart Container ────────────────────────────────── */
.chart-box { position: relative; width: 100%; }
.chart-box canvas { width: 100% !important; }
.chart-box.h-200 { height: 200px; }
.chart-box.h-260 { height: 260px; }
.chart-box.h-300 { height: 300px; }
.chart-box.h-350 { height: 350px; }

/* ── Expandable Detail ──────────────────────────────── */
.expand-toggle {
  display: inline-flex; align-items: center; gap: .4rem;
  background: none; border: 1px solid var(--c-border);
  padding: .45rem 1rem; border-radius: .4rem;
  font-size: .8rem; font-weight: 600; color: var(--c-text2);
  cursor: pointer; transition: all .2s;
  margin-top: 1rem;
}
.expand-toggle:hover { border-color: var(--c-accent); color: var(--c-accent); }
.expand-toggle .arrow { transition: transform .3s var(--ease); font-size: .65rem; }
.expand-toggle.open .arrow { transform: rotate(180deg); }

.expand-body {
  max-height: 0; overflow: hidden;
  transition: max-height .4s var(--ease), opacity .3s;
  opacity: 0;
}
.expand-body.open { opacity: 1; }

/* ── Data Table ─────────────────────────────────────── */
.data-table { width: 100%; border-collapse: collapse; font-size: .85rem; margin: 1rem 0; }
.data-table th {
  text-align: left; padding: .6rem .75rem;
  font-weight: 600; font-size: .75rem; text-transform: uppercase; letter-spacing: .05em;
  color: var(--c-text2); border-bottom: 2px solid var(--c-border);
}
.data-table td { padding: .55rem .75rem; border-bottom: 1px solid var(--c-border); }
.data-table tr:last-child td { border-bottom: none; }
.data-table .sig { color: var(--c-accent); font-weight: 700; }

/* ── Gauge (for scale items) ────────────────────────── */
.gauge-row {
  display: flex; align-items: center; gap: 1rem;
  padding: 1rem 0;
  border-bottom: 1px solid var(--c-border);
}
.gauge-row:last-child { border-bottom: none; }
.gauge-label { width: 140px; flex-shrink: 0; font-size: .85rem; font-weight: 600; }
.gauge-bar-wrap { flex: 1; position: relative; height: 28px; background: #E8E2D2; border-radius: 4px; overflow: hidden; }
.gauge-bar { height: 100%; border-radius: 4px; transition: width .8s var(--ease); }
.gauge-marker {
  position: absolute; top: -4px; width: 2px; height: 36px;
  background: var(--c-text); opacity: .3;
}
.gauge-val { width: 100px; text-align: right; font-size: .85rem; font-weight: 600; flex-shrink: 0; }

/* ── Scroll Animation ───────────────────────────────── */
.reveal {
  opacity: 0; transform: translateY(24px);
  transition: opacity .6s var(--ease), transform .6s var(--ease);
}
.reveal.visible { opacity: 1; transform: translateY(0); }

/* ── Flow Diagram (Causal Chain) ────────────────────── */
.flow-diagram { display: flex; flex-direction: column; gap: 1.25rem; }

.flow-lane {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: .75rem;
  overflow: hidden;
}
.flow-lane--muted { background: var(--c-bg-alt); }

.flow-lane-head {
  display: flex; align-items: center; gap: .6rem;
  padding: .85rem 1.25rem;
  font-size: .8rem; font-weight: 700; text-transform: uppercase; letter-spacing: .06em;
  color: var(--c-text);
  border-left: 4px solid var(--c-accent);
  background: var(--c-bg-alt);
}
.flow-lane-head svg { flex-shrink: 0; opacity: .55; }

.flow-row {
  display: flex; align-items: center; gap: .5rem;
  padding: .8rem 1.25rem;
  border-top: 1px solid var(--c-border);
  flex-wrap: wrap;
}
.flow-row--sub { padding-left: 2.5rem; }

.flow-src, .flow-dst {
  padding: .3rem .7rem;
  border-radius: .35rem;
  font-size: .82rem; font-weight: 600;
  white-space: nowrap;
}
.flow-src {
  background: #E8E2D2; color: #14110C;
}
.flow-dst {
  background: #E8E2D2; color: #14110C;
}
.flow-dst--struck {
  background: #EFDBD1; color: #B71F13;
  text-decoration: line-through;
  text-decoration-thickness: 2px;
}

/* Arrow connector */
.flow-conn {
  display: flex; align-items: center;
  flex: 1; min-width: 48px; max-width: 140px;
  position: relative;
  height: 28px;
}
.flow-conn::before {
  content: '';
  position: absolute; left: 0; right: 14px; top: 50%;
  height: 2px; background: currentColor; opacity: .35;
}
.flow-conn::after {
  content: '';
  position: absolute; right: 6px; top: 50%; transform: translateY(-50%);
  border-left: 7px solid currentColor; border-top: 4px solid transparent; border-bottom: 4px solid transparent;
  opacity: .5;
}
.flow-conn span {
  position: relative; z-index: 1;
  margin: 0 auto;
  display: inline-flex; align-items: center; justify-content: center;
  min-width: 26px; height: 26px;
  padding: 0 .45rem;
  border-radius: 2rem;
  font-size: .7rem; font-weight: 800;
  background: var(--c-surface);
  border: 2px solid currentColor;
  line-height: 1;
}
.flow-conn--pos  { color: var(--c-accent); }
.flow-conn--neg  { color: var(--c-red); }
.flow-conn--comp { color: var(--c-green); }
.flow-conn--null { color: #9B9286; }
.flow-conn--null::before { border-top: 2px dashed #9B9286; background: none; height: 0; }

.flow-ev {
  margin-left: auto;
  padding: .2rem .55rem;
  border-radius: .25rem;
  font-size: .72rem; font-weight: 500;
  color: var(--c-text2);
  background: var(--c-bg-alt);
  white-space: nowrap;
}

.flow-insight {
  display: flex; align-items: flex-start; gap: .5rem;
  padding: .75rem 1.25rem;
  border-top: 1px solid var(--c-border);
  font-size: .8rem; color: var(--c-text2);
  background: var(--c-bg-alt);
}
.flow-insight svg { flex-shrink: 0; margin-top: .1rem; opacity: .4; }

@media (max-width: 700px) {
  .flow-row { flex-direction: column; align-items: flex-start; gap: .4rem; }
  .flow-row--sub { padding-left: 1.25rem; }
  .flow-conn { min-width: 100%; max-width: none; height: 20px; margin: .1rem 0; }
  .flow-ev { margin-left: 0; }
}

/* ── Footer ─────────────────────────────────────────── */
.site-footer {
  background: var(--c-dark); color: rgba(255,255,255,.5);
  padding: 3rem 0; font-size: .85rem;
}
.site-footer strong { color: rgba(255,255,255,.8); }

/* ── Utilities ──────────────────────────────────────── */
.mt-1 { margin-top: .5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.text-center { text-align: center; }
.text-accent { color: var(--c-accent); }
.text-red    { color: var(--c-red); }
.text-green  { color: var(--c-green); }
.text-muted  { color: var(--c-text2); }
.text-sm { font-size: .85rem; }
.fw-600 { font-weight: 600; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.gap-2 { gap: 1rem; }
.inline-stat { display: inline-block; padding: .15rem .5rem; background: #E8E2D2; border-radius: .25rem; font-weight: 700; font-size: .85rem; color: var(--c-accent); }

/* ── Print ─────────────────────────────────────────── */
@media print {
  .report-nav, .expand-toggle, .site-footer { display: none; }
  section { padding: 2rem 0; break-inside: avoid; }
  .report-hero { padding: 3rem 0 2rem; }
  .reveal { opacity: 1 !important; transform: none !important; }
}

/* ── Mobile fine-tune ──────────────────────────────── */
@media (max-width: 700px) {
  .report-hero { padding: 4rem 0 3rem; }
  .hero-stats { gap: 1.5rem; }
  .hero-stat .stat-big { font-size: 2rem; }
  .finding-hdr { flex-direction: column; gap: .5rem; }
  .gauge-row { flex-wrap: wrap; }
  .gauge-label { width: 100%; }
  .gauge-val { width: 100%; text-align: left; margin-top: .5rem; }
  .chain { font-size: .72rem; }
}

/* Society report: shared typography, paper, ink and constructivist geometry. */
body{font-family:var(--f-grotesk);background:var(--paper);color:var(--ink)}
.topbar .shell{display:flex;height:56px;justify-content:space-between;align-items:center;max-width:1240px}
.topbar .brandmark{color:var(--ink)}
.backlink{font-family:var(--f-mono);font-size:.7rem;border:var(--rule);padding:6px 14px;color:var(--ink)}
.backlink:hover{background:var(--ink);color:var(--paper)}
.wrap{position:relative;z-index:2;padding:0 var(--gutter)}
main{position:relative;z-index:2}
section{padding:60px 0 40px;border-bottom:var(--hair);background:transparent!important}
section[id]{scroll-margin-top:120px}
h2{font-weight:900}h3{font-weight:800}
p{max-width:80ch}
.report-hero{background:var(--paper);color:var(--ink);padding:130px 0 46px;text-align:left;border-bottom:var(--rule)}
.report-hero::after{display:none}
.report-hero h1{color:var(--ink);font-size:clamp(2.1rem,5.2vw,3.8rem);font-weight:900;line-height:1.2;letter-spacing:-.02em}
/* Opaque paper fill masks overlapping CJK stroke contours; draw outline first. */
.report-hero h1 .outline{color:var(--paper);-webkit-text-fill-color:var(--paper);-webkit-text-stroke:1.5px var(--ink);paint-order:stroke fill}
.report-hero .meta{font-size:.8rem;color:var(--ink-70);margin-bottom:24px}
.report-hero .subtitle{color:var(--ink-70);font-size:.95rem;max-width:720px;margin:22px 0 30px}
.report-hero .archive-note{color:var(--ink-70);font-size:.8rem;margin:20px 0;max-width:80ch}
.hero-stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:0;border-top:var(--rule);border-left:var(--rule);max-width:920px}
.hero-stat{padding:20px;border-right:var(--rule);border-bottom:var(--rule)}
.hero-stat .stat-big{font-family:var(--f-mono);font-size:clamp(1.6rem,3vw,2.6rem);color:var(--ink)}
.hero-stat:first-child .stat-big{color:var(--red)}
.hero-stat .stat-unit{color:var(--ink-70);font-size:.75rem;margin-top:8px}
.hero-actions{justify-content:flex-start;margin-top:24px}
.report-hero a.hero-btn{border-radius:0;background:transparent;color:var(--ink);border:var(--rule);font-size:.8rem;padding:10px 16px}
.report-hero a.hero-btn:hover{background:var(--ink);color:var(--paper);transform:none;box-shadow:none}
.report-hero a.hero-btn--primary{background:var(--red);border-color:var(--red);color:var(--paper)}
.report-nav{top:56px;z-index:40;background:rgba(var(--paper-rgb),.96);border-bottom:var(--rule);box-shadow:none!important}
.report-nav-inner{padding:0 var(--gutter)}
.report-nav a{color:var(--ink-70)}.report-nav a.active{color:var(--red);border-bottom-color:var(--red)}
.card,.flow-lane{border-radius:0;background:transparent;box-shadow:none}
.card{border:0;border-top:var(--rule);padding:18px 0;min-width:0}
.card-title{color:var(--ink);font-weight:800;letter-spacing:0;text-transform:none}
.finding-hdr{border-top:var(--rule);padding-top:18px}
.finding-num{border-radius:0;background:var(--red);font-family:var(--f-mono)}
.callout,.callout.warn{background:var(--paper-2);border-radius:0;color:var(--ink-70)}
.inline-stat,.flow-src,.flow-dst,.flow-ev,.flow-conn span,.gauge-bar,.gauge-bar-wrap{border-radius:0}
.expand-toggle{font-family:var(--f-grotesk);border-radius:0;color:var(--ink);border-color:var(--ink-12)}
.expand-body.open{max-height:none!important;overflow-x:auto}
.data-table{min-width:460px}.table-scroll{overflow-x:auto;max-width:100%}
.data-table th{letter-spacing:0;text-transform:none;border-bottom:var(--rule)}
.site-footer{background:var(--ink);color:rgba(var(--paper-rgb),.7);position:relative;z-index:2}
.site-footer a{color:var(--paper)!important}.site-footer .footer-links{justify-content:flex-start!important}
.reveal{opacity:1;transform:none}
a:focus-visible,button:focus-visible{outline:2px solid var(--red);outline-offset:4px}
.skip-link{position:fixed;top:-100px;left:16px;z-index:80;padding:12px;background:var(--ink);color:var(--paper)}.skip-link:focus{top:8px}
@media(max-width:700px){.report-hero{padding:100px 0 32px}.hero-stats{grid-template-columns:repeat(2,minmax(0,1fr))}.hero-stat{padding:16px}.brandmark span{display:none}.brandmark b{font-size:.82rem}.backlink{font-size:.62rem;padding:6px 10px}.report-hero .d-target{opacity:.18}.report-hero .subtitle{font-size:.88rem}.grid-2,.grid-3{gap:24px}.finding-hdr{gap:12px}.hero-actions{gap:8px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{animation:none!important;transition:none!important}.reveal{opacity:1;transform:none}}
@media print{.topbar,.report-nav,.hero-actions{display:none}.report-hero{padding:24px 0}.expand-body{max-height:none!important;opacity:1;overflow:visible}.site-footer{display:block;background:transparent;color:var(--ink)}.site-footer strong,.site-footer a{color:var(--ink)!important}body::before,body::after,.deco{display:none}}

.report-hero a.hero-btn.hero-btn--primary:hover{background:var(--ink);border-color:var(--ink);color:var(--paper)}