:root{--primary:#2563eb;--bg-dark:#0a0a0f;--bg-card:rgba(255,255,255,0.04);--border-subtle:rgba(255,255,255,0.06);--text-primary:#f0f0f5;--text-secondary:rgba(240,240,245,0.6);--font:"Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}[data-theme=light]{--bg-dark:#f8f9fc;--bg-card:rgba(0,0,0,0.03);--border-subtle:rgba(0,0,0,0.08);--text-primary:#111827;--text-secondary:rgba(17,24,39,0.6)}*,:after,:before{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font);background:var(--bg-dark);color:var(--text-primary);line-height:1.7;-webkit-font-smoothing:antialiased}.container{max-width:800px;margin:0 auto;padding:0 24px}header{padding:20px 0;border-bottom:1px solid var(--border-subtle);margin-bottom:40px}.header-inner{display:flex;align-items:center;justify-content:space-between}.logo{font-size:20px;font-weight:700;color:var(--text-primary);text-decoration:none}.header-logo-img{height:24px;width:auto;vertical-align:middle}[data-theme=dark] .header-logo-img{filter:brightness(0) invert(1)}.back-link{color:var(--text-secondary);text-decoration:none;font-size:14px}.back-link:hover{color:var(--primary)}main{padding-bottom:80px}h1{font-size:28px;font-weight:700;margin-bottom:8px}.date{color:var(--text-secondary);font-size:14px;margin-bottom:40px}h2{font-size:18px;font-weight:600;margin-top:36px}h2,li,p{margin-bottom:12px}li,p{font-size:15px;color:var(--text-secondary)}ol,ul{padding-left:24px}li{margin-bottom:8px}strong{color:var(--text-primary)}a{color:var(--primary)}footer{border-top:1px solid var(--border-subtle);padding:24px 0;text-align:center;color:var(--text-secondary);font-size:13px}