:root{--c-bg: #ffffff;--c-fg: #0f172a;--c-muted: #475569;--c-line: #e2e8f0;--c-panel: #f8fafc;--c-brand: #0f766e;--c-brand-dark: #0d5b56;--c-cta: #ea580c;--c-cta-dark: #c2410c;--c-accent: #1e40af;--c-warn-bg: #fef3c7;--c-warn-fg: #78350f;--c-good: #16a34a;--c-bad: #dc2626;--radius: 10px;--shadow-sm: 0 1px 2px rgba(15, 23, 42, .06);--shadow-md: 0 4px 12px rgba(15, 23, 42, .08);--maxw: 1120px;font-family:system-ui,-apple-system,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif}*,*:before,*:after{box-sizing:border-box}html,body{margin:0;padding:0}body{color:var(--c-fg);background:var(--c-bg);line-height:1.6;-webkit-font-smoothing:antialiased}img{max-width:100%;height:auto}a{color:var(--c-accent);text-decoration:none}a:hover{text-decoration:underline}.container{max-width:var(--maxw);margin:0 auto;padding:0 20px}.site-header{border-bottom:1px solid var(--c-line);background:#fff;position:sticky;top:0;z-index:40}.site-header 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