:root{--bg:#f0f2f5;--bg-card:#ffffff;--bg-emoji:#eceef2;--border:#dfe2e8;--border-hover:#c8cdd6;--text-primary:#141720;--text-secondary:#4a5068;--text-muted:#8590a6;--accent:#00997a;--accent-deep:#007a62;--accent-glow:rgba(0,153,122,0.12);--warning:#b5700a;--warning-bg:#fef6ee;--warning-border:#f5dcc4;--font-display:"Outfit",-apple-system,sans-serif;--font-mono:"JetBrains Mono",monospace;--shadow-card:0 1px 3px rgba(0,0,0,0.05),0 1px 2px rgba(0,0,0,0.03);--shadow-hover:0 8px 28px rgba(0,0,0,0.08),0 2px 6px rgba(0,0,0,0.04)}*{margin:0;padding:0;box-sizing:border-box}html{scroll-behavior:smooth}body{font-family:var(--font-display);background:var(--bg);color:var(--text-primary);line-height:1.6;-webkit-font-smoothing:antialiased}a{color:var(--accent-deep);text-decoration:none}a:hover{text-decoration:underline}.wrap{max-width:1080px;margin:0 auto;padding:24px 24px 0}.article-wrap{max-width:720px;margin:0 auto;padding:0 24px}.article-header{padding:48px 0 32px}.article-header h1{font-size:36px;font-weight:700;letter-spacing:-.03em;line-height:1.15;margin-bottom:12px}.article-header .meta{font-size:13px;font-family:var(--font-mono);color:var(--text-muted);display:flex;align-items:center;gap:16px}.article-header .meta .category{background:var(--accent-glow);color:var(--accent-deep);padding:2px 10px;border-radius:6px;font-weight:500}.article-body{padding-bottom:64px}.article-body h2{font-size:24px;font-weight:700;letter-spacing:-.02em;margin:40px 0 16px}.article-body h3{font-size:19px;font-weight:600;letter-spacing:-.01em;margin:32px 0 12px}.article-body ol,.article-body p,.article-body ul{font-size:16px;color:var(--text-secondary);line-height:1.75;margin-bottom:20px}.article-body ol,.article-body ul{padding-left:24px}.article-body li{margin-bottom:8px}.article-body a{color:var(--accent-deep);font-weight:500;border-bottom:1px solid var(--accent-glow);transition:border-color .2s}.article-body a:hover{border-color:var(--accent-deep);text-decoration:none}.article-body img{max-width:100%;height:auto;border-radius:12px;margin:24px 0;border:1px solid var(--border)}.article-body blockquote{border-left:3px solid var(--accent);padding:12px 20px;margin:24px 0;background:var(--bg-card);border-radius:0 10px 10px 0;color:var(--text-secondary);font-style:italic}.article-body code{background:var(--bg-emoji);padding:2px 6px;border-radius:4px}.article-body code,.article-body pre{font-family:var(--font-mono);font-size:14px}.article-body pre{background:var(--text-primary);color:#e8eaf0;padding:20px 24px;border-radius:12px;overflow-x:auto;margin:24px 0;line-height:1.6}.article-body pre code{background:none;padding:0;color:inherit}.article-body table{width:100%;border-collapse:collapse;margin:24px 0;font-size:15px}.article-body td,.article-body th{padding:12px 16px;text-align:left;border-bottom:1px solid var(--border)}.article-body th{font-weight:600;background:var(--bg-emoji)}.article-body .callout{background:var(--warning-bg);border:1px solid var(--warning-border);border-radius:12px;padding:16px 20px;margin:24px 0;color:var(--warning);font-size:15px;line-height:1.6}.article-body .checklist-card-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));grid-gap:16px;gap:16px;margin:20px 0 28px}.article-body .checklist-card{background:var(--bg-card);border:1px solid var(--border);border-radius:14px;box-shadow:var(--shadow-card);padding:18px 18px 8px}.article-body .checklist-card h3{margin-top:0}.article-body .checklist-card ul{margin-bottom:8px;padding-left:20px}.article-body .checklist-card li{margin-bottom:10px}.article-body .checklist-card-do{border-color:#cfe9d7}.article-body .checklist-card-dont{border-color:#f0d4d9}.section{margin-bottom:56px}.section-header{gap:12px;margin-bottom:20px;padding-bottom:14px;border-bottom:1px solid var(--border)}.section-header,.section-icon{display:flex;align-items:center}.section-icon{width:38px;height:38px;border-radius:10px;justify-content:center;font-size:19px;flex-shrink:0}.section-icon.kb{background:rgba(59,110,230,.08)}.section-icon.tools{background:rgba(220,130,30,.08)}.section-icon.data{background:rgba(140,80,220,.08)}.section-header h2{font-size:20px;font-weight:600;letter-spacing:-.02em}.section-header .count{margin-left:auto;font-size:11px;font-family:var(--font-mono);color:var(--text-muted);background:var(--bg-card);padding:3px 9px;border-radius:6px;border:1px solid var(--border)}.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));grid-gap:12px;gap:12px}.card{display:flex;align-items:flex-start;gap:14px;background:var(--bg-card);border:1px solid var(--border);border-radius:14px;padding:20px;color:var(--text-primary);transition:all .25s ease;position:relative;box-shadow:var(--shadow-card)}.card,.card:hover{text-decoration:none}.card:hover{border-color:var(--border-hover);transform:translateY(-2px);box-shadow:var(--shadow-hover)}.card-emoji{font-size:22px;flex-shrink:0;width:42px;height:42px;display:flex;align-items:center;justify-content:center;background:var(--bg-emoji);border-radius:10px}.card-content h3{font-size:15px;font-weight:600;letter-spacing:-.01em;margin-bottom:3px}.card-content p{font-size:13px;color:var(--text-muted);line-height:1.5}.card .arrow{position:absolute;top:20px;right:20px;opacity:0;transform:translate(-4px,4px);transition:all .25s;color:var(--accent);font-size:14px}.card:hover .arrow{opacity:1;transform:translate(0)}.ledger-cta-card{margin:32px 0 24px}.ledger-cta-link{display:flex;align-items:center;gap:12px;background:var(--bg-card);border:1px solid var(--border);border-radius:14px;padding:14px 16px;box-shadow:var(--shadow-card);text-decoration:none;border-bottom:none!important;color:inherit!important;transition:border-color .2s,box-shadow .2s,transform .2s}.ledger-cta-link:hover{border-color:var(--border-hover);box-shadow:var(--shadow-hover);transform:translateY(-1px);text-decoration:none}.ledger-cta-icon{width:34px;height:34px;border-radius:10px;background:var(--warning-bg);border:1px solid var(--warning-border);display:inline-flex;align-items:center;justify-content:center;font-size:17px;line-height:1;flex-shrink:0}.ledger-cta-copy{display:flex;flex-direction:column;gap:2px}.ledger-cta-copy strong{color:var(--text-primary);font-size:18px;line-height:1.3;letter-spacing:-.01em}.ledger-cta-copy small{color:var(--text-muted);font-size:14px;line-height:1.45}.breadcrumbs{padding:20px 0 0;font-size:13px;font-family:var(--font-mono);color:var(--text-muted)}.breadcrumbs a{color:var(--text-muted);border:none}.breadcrumbs a:hover{color:var(--text-primary)}.exchange-timeline{padding-bottom:64px}.exchange-timeline-note,.exchange-timeline-summary{font-size:16px;color:var(--text-secondary);line-height:1.75}.exchange-timeline-summary{margin-bottom:16px}.exchange-timeline-note{margin-bottom:28px}.exchange-timeline-list{list-style:none;margin:0;padding:0 0 0 28px;position:relative}.exchange-timeline-list:before{content:"";position:absolute;top:0;bottom:0;left:10px;width:2px;background:var(--border)}.exchange-timeline-item{position:relative;margin-bottom:20px}.exchange-timeline-marker{position:absolute;left:-24px;top:18px;width:10px;height:10px;border-radius:999px;background:var(--accent);box-shadow:0 0 0 4px var(--bg)}.exchange-timeline-card{background:var(--bg-card);border:1px solid var(--border);border-radius:14px;padding:18px 18px 14px;box-shadow:var(--shadow-card)}.exchange-timeline-card h2{font-size:22px;margin:2px 0 12px;letter-spacing:-.02em;line-height:1.2}.exchange-timeline-date{font-family:var(--font-mono);color:var(--text-muted);font-size:13px;margin-bottom:4px}.exchange-timeline-card p{font-size:15px;margin-bottom:12px;line-height:1.7;color:var(--text-secondary)}.exchange-timeline-card img{max-height:42px;width:auto;border:0;border-radius:0;margin:4px 0 12px}footer{border-top:1px solid var(--border);margin-top:24px;padding:28px 24px;text-align:center;font-size:13px;color:var(--text-muted);font-family:var(--font-mono)}@media (max-width:680px){.nav-links{display:none}.cards{grid-template-columns:1fr}.ledger-cta-link{align-items:flex-start}.ledger-cta-copy strong{font-size:16px}.ledger-cta-copy small{font-size:13px}.article-header h1{font-size:28px}}