:root {
  --bg: #0b1020; --text: #edf2ff; --muted: #aeb9d8; --line: rgba(255,255,255,0.16);
  --accent: #8bd3ff; --accent2: #a78bfa; --warm: #f2b45f; --paper: #fbfbff;
  --paper-text: #182033; --shadow: 0 24px 80px rgba(0,0,0,.28); --radius: 26px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; color: var(--text); line-height: 1.65; }
body.absorption-theme {
  background:
    radial-gradient(circle at top left, rgba(242,180,95,.21), transparent 34rem),
    radial-gradient(circle at 78% 8%, rgba(139,211,255,.17), transparent 28rem),
    radial-gradient(circle at 48% 76%, rgba(167,139,250,.10), transparent 30rem),
    linear-gradient(135deg, #08101e 0%, #111827 48%, #070b16 100%);
}
a { color: inherit; }
.progress { position: fixed; top: 0; left: 0; height: 4px; width: 0%; background: linear-gradient(90deg, var(--warm), var(--accent), var(--accent2)); z-index: 100; }
.shell { max-width: 1240px; margin: 0 auto; padding: 28px; }
header.site-header { position: sticky; top: 0; z-index: 50; backdrop-filter: blur(18px); background: rgba(8,15,31,.72); border-bottom: 1px solid rgba(255,255,255,.08); }
.site-nav { max-width: 1220px; margin: 0 auto; padding: 14px 26px; display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.site-brand { text-decoration: none; font-weight: 900; letter-spacing: -.03em; color: #f2f6ff; }
.site-brand span { color: #8bd3ff; }
.site-links { display: flex; gap: 6px; flex-wrap: wrap; justify-content: flex-end; }
.site-links a { text-decoration: none; color: #aeb8d6; font-size: 14px; padding: 8px 10px; border-radius: 999px; }
.site-links a:hover { color: white; background: rgba(255,255,255,.09); }
.hero { min-height: 56vh; display: grid; grid-template-columns: minmax(0, 1.16fr) minmax(300px, .84fr); gap: 28px; align-items: stretch; padding: 28px 0 28px; }
.hero-main, .hero-side, .journey-panel, .takeaways, .article-card, .toc-card, .hero-visual-panel { border: 1px solid var(--line); background: linear-gradient(180deg, rgba(255,255,255,.12), rgba(255,255,255,.06)); backdrop-filter: blur(20px); border-radius: var(--radius); box-shadow: var(--shadow); }
.hero-main { padding: clamp(30px, 5vw, 62px); display: flex; flex-direction: column; justify-content: space-between; overflow: hidden; }
.eyebrow { display: inline-flex; width: fit-content; padding: 8px 12px; border-radius: 999px; background: rgba(255,255,255,.11); color: var(--muted); font-weight: 800; font-size: 12px; letter-spacing: .13em; text-transform: uppercase; }
h1.hero-title { font-size: clamp(44px, 7vw, 84px); line-height: .92; margin: 28px 0 18px; letter-spacing: -.06em; }
.hero-subtitle { color: var(--muted); font-size: clamp(18px, 2vw, 23px); max-width: 820px; margin: 0 0 34px; }
.hero-quote { font-size: clamp(24px, 3vw, 40px); line-height: 1.08; font-weight: 850; letter-spacing: -.035em; max-width: 900px; margin: 30px 0; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 20px; }
.btn { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; padding: 12px 16px; border-radius: 999px; background: rgba(255,255,255,.12); border: 1px solid var(--line); font-weight: 750; }
.btn.primary { background: linear-gradient(135deg, rgba(242,180,95,.28), rgba(139,211,255,.22)); }
.hero-side { padding: 26px; display: flex; flex-direction: column; justify-content: space-between; }
.badge { color: var(--warm); font-size: 13px; font-weight: 850; text-transform: uppercase; letter-spacing: .12em; }
.metric-grid { display: grid; gap: 12px; margin: 24px 0; }
.metric { padding: 18px; border: 1px solid var(--line); border-radius: 20px; background: rgba(255,255,255,.08); }
.metric strong { display: block; font-size: 25px; line-height: 1; }
.metric span { display: block; color: var(--muted); font-size: 13px; background: transparent; box-shadow: none; text-decoration: none; }
.metric mark { color: inherit; background: transparent; padding: 0; }
.side-note { color: var(--muted); border-top: 1px solid var(--line); padding-top: 18px; font-size: 15px; }
.hero-visual-panel { padding: 14px; margin: 28px 0 26px; }
.hero-visual-panel.hero-top { margin-top: 28px; }
.hero-visual-frame { border-radius: 20px; overflow: hidden; background: #080d18; min-height: 280px; display: grid; place-items: center; }
.hero-visual-frame img { display: block; width: 100%; height: auto; object-fit: contain; }
.hero-visual-fallback { display: none; padding: 48px 28px; max-width: 760px; text-align: center; color: var(--muted); }
.hero-visual-frame.missing-asset .hero-visual-fallback { display: block; }
.hero-visual-panel figcaption { color: var(--muted); font-size: 15px; padding: 13px 8px 4px; }
.journey-panel, .takeaways { padding: 28px; margin: 26px 0; }
.section-label { display: flex; justify-content: space-between; gap: 16px; align-items: end; margin-bottom: 18px; }
.section-label h2 { margin: 0; font-size: clamp(28px, 4vw, 46px); line-height: 1; letter-spacing: -.04em; }
.section-label p { margin: 0; color: var(--muted); max-width: 520px; }
.timeline { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 14px; }
.timeline-card { text-decoration: none; display: flex; gap: 13px; align-items: flex-start; padding: 16px; border: 1px solid var(--line); border-radius: 20px; background: rgba(255,255,255,.075); min-height: 116px; transition: transform .2s ease, background .2s ease, border-color .2s ease; }
.timeline-card:hover { transform: translateY(-3px); background: rgba(255,255,255,.13); border-color: rgba(242,180,95,.52); }
.timeline-number { flex: 0 0 auto; width: 42px; height: 42px; border-radius: 14px; display: grid; place-items: center; font-weight: 900; background: linear-gradient(135deg, rgba(242,180,95,.35), rgba(139,211,255,.22)); color: white; }
.timeline-copy strong { display: block; line-height: 1.15; margin: 2px 0 7px; }
.timeline-copy small { display: block; color: var(--muted); line-height: 1.45; }
.takeaway-grid { display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 14px; }
.takeaway-card { padding: 20px; border-radius: 22px; background: rgba(255,255,255,.08); border: 1px solid var(--line); }
.takeaway-card h3 { margin: 0 0 8px; font-size: 18px; line-height: 1.15; }
.takeaway-card p { margin: 0; color: var(--muted); font-size: 14px; line-height: 1.5; }
.reader-layout { display: grid; grid-template-columns: 270px minmax(0, 1fr); gap: 24px; align-items: start; margin-top: 28px; }
.toc-wrap { position: sticky; top: 82px; }
.toc-card { padding: 18px; }
.toc-card h3 { margin: 0 0 12px; font-size: 14px; text-transform: uppercase; letter-spacing: .12em; color: var(--muted); }
.toc-card nav { display: grid; gap: 4px; }
.toc-card a { text-decoration: none; color: var(--muted); padding: 9px 10px; border-radius: 12px; font-size: 14px; line-height: 1.25; }
.toc-card a:hover, .toc-card a.active { color: white; background: rgba(255,255,255,.10); }
.article-card { background: var(--paper); color: var(--paper-text); padding: clamp(26px, 5vw, 64px); }
.content-section { scroll-margin-top: 92px; border-top: 1px solid rgba(24,32,51,.11); padding-top: 34px; margin-top: 34px; }
.content-section:first-child { border-top: 0; margin-top: 0; padding-top: 0; }
.article-card h1, .article-card h2, .article-card h3 { color: #11182a; line-height: 1.12; letter-spacing: -.035em; }
.article-card h1 { font-size: clamp(34px, 5vw, 58px); margin: 0 0 18px; }
.article-card h2 { font-size: clamp(28px, 3.5vw, 42px); margin: 0 0 16px; }
.article-card p { font-size: 18px; margin: 0 0 18px; color: var(--paper-text); }
.article-card a { color: #2849a7; font-weight: 700; }
.pull-quote { margin: 28px 0; padding: 24px 28px; border-radius: 22px; background: linear-gradient(135deg, #fff6e7, #edf7ff); border: 1px solid #ead8bd; font-size: clamp(22px, 3vw, 34px); line-height: 1.18; letter-spacing: -.035em; color: #10182b; }
.closing-triad { display: grid; gap: 6px; margin: 28px 0; padding: 24px 28px; border-radius: 22px; background: linear-gradient(135deg, #fff3df, #eef6ff); border: 1px solid #ead8bd; color: #11182a; font-size: clamp(20px, 2.8vw, 31px); line-height: 1.18; letter-spacing: -.03em; }
.section-divider { height: 1px; background: linear-gradient(90deg, transparent, rgba(24,32,51,.18), transparent); margin: 32px 0; }
.site-footer { max-width:1120px; margin:40px auto 0; padding:40px 24px 34px; border-top:1px solid rgba(159,176,214,.16); color:var(--muted); }
.footer-inner { display:grid; grid-template-columns:minmax(180px,240px) 1fr; gap:48px; align-items:start; }
.footer-main { min-width:0; }
.footer-label { display:block; text-transform:uppercase; letter-spacing:.18em; font-size:13px; font-weight:500; color:#5E6E96; margin-bottom:16px; }
.footer-related a { display:block; color:#EEF2FF; text-decoration:none; padding:5px 0; font-size:16px; font-weight:400; line-height:1.35; }
.footer-related a:hover, .footer-utility a:hover { color:#5EEAD4; }
.footer-utility { display:flex; flex-wrap:wrap; gap:24px; margin-bottom:18px; }
.footer-utility a { color:#9FB0D6; text-decoration:none; font-size:16px; font-weight:600; }
.footer-meta { display:flex; gap:28px; flex-wrap:wrap; font-size:13px; color:#5E6E96; }
.footer-meta a { color:#5E6E96; text-decoration:none; }
@media (max-width: 980px) {
  .site-nav { align-items: flex-start; flex-direction: column; }
  .site-links { justify-content: flex-start; }
  .hero, .reader-layout { grid-template-columns: 1fr; }
  .toc-wrap { position: relative; top: 0; }
  .takeaway-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
}
@media (max-width: 720px) {
  .shell { padding: 18px; }
  .timeline, .takeaway-grid { grid-template-columns: 1fr; }
  .section-label { align-items: start; flex-direction: column; }
  .site-footer { padding:36px 24px 32px; }
  .footer-inner { grid-template-columns:1fr; gap:26px; }
  .footer-utility { gap:18px; }
  .footer-meta { gap:18px; }
}