/* v6 — 三跃迁 · light only · sage green accent */
@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+SC:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500;600&display=swap');

:root {
  --paper: #FAFAF6;
  --paper-2: #F4F4ED;
  --ink: #1F2421;
  --ink-2: #4A4F4B;
  --ink-3: #6F756F;
  --rule: #D6D7CF;
  --rule-2: #EAEAE3;
  --green: #7FA877;
  --green-mid: #9DBF95;
  --green-light: #D9E5D2;
  --green-soft: #EEF2EA;
  --green-deep: #4F7A4D;
  --warn: #C49A6C;
  --warn-deep: #A47A48;
  --f-mono: 'JetBrains Mono', ui-monospace, monospace;
}

html, body { margin: 0; padding: 0; background: #1a1a1a; }
* { box-sizing: border-box; }

deck-stage section {
  position: relative;
  background: #FFFFFF;
  color: var(--ink);
  font-family: 'Noto Sans SC', -apple-system, sans-serif;
  font-feature-settings: "ss01", "ss02";
  overflow: hidden;
}

.frame {
  position: absolute;
  inset: 80px 80px 80px 80px;
  display: flex;
  flex-direction: column;
}

.rule-top    { position:absolute; top:64px;    left:80px; right:80px; height:1px; background:var(--ink); }
.rule-bottom { position:absolute; bottom:64px; left:80px; right:80px; height:1px; background:var(--ink); }

.chrome-tl, .chrome-tr, .chrome-bl, .chrome-br {
  position: absolute;
  font-family: var(--f-mono);
  font-size: 13px;
  letter-spacing: 0.18em;
  color: var(--ink-3);
}
.chrome-tl { top: 36px; left: 80px; }
.chrome-tr { top: 36px; right: 80px; }
.chrome-bl { bottom: 36px; left: 80px; }
.chrome-br { bottom: 36px; right: 80px; }

.kicker {
  font-family: var(--f-mono);
  font-size: 16px;
  letter-spacing: 0.30em;
  color: var(--green-deep);
  text-transform: uppercase;
}
.eyebrow {
  font-family: var(--f-mono);
  font-size: 14px;
  letter-spacing: 0.22em;
  color: var(--green-deep);
  text-transform: uppercase;
}
.label-mono {
  font-family: var(--f-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--ink-3);
  text-transform: uppercase;
}

.title-xxl { font-size: 132px; font-weight: 700; line-height: 1.04; letter-spacing: -0.02em; margin: 0; color: var(--ink); }
.title-xl  { font-size: 92px; font-weight: 700; line-height: 1.08; letter-spacing: -0.015em; margin: 0; color: var(--ink); }
.title-md  { font-size: 60px; font-weight: 600; line-height: 1.12; letter-spacing: -0.01em; margin: 0; color: var(--ink); }
.subtitle  { font-family: var(--f-mono); font-weight: 400; color: var(--ink-2); }

.body-md { font-size: 22px; line-height: 1.55; color: var(--ink-2); margin: 0; }
.body-sm { font-size: 16px; line-height: 1.55; color: var(--ink-2); margin: 0; }

.row { display: flex; flex-direction: row; }
.col { display: flex; flex-direction: column; }

.diagram { width: 100%; height: 100%; display: block; }

.card {
  background: var(--paper);
  border: 1px solid var(--rule);
  padding: 22px 24px;
}
.card-deep {
  background: var(--green-soft);
  border: 1px solid var(--green-mid);
  padding: 22px 24px;
}

.zoom-mini {
  position: absolute;
  top: 100px;
  right: 80px;
  width: 240px;
  background: var(--paper);
  border: 1px solid var(--rule);
  padding: 14px 16px 12px;
  z-index: 5;
}
.zoom-mini .zm-label {
  font-family: var(--f-mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  color: var(--green-deep);
  margin-bottom: 8px;
}