:root{--bg: #f4f5f7;--surface: #ffffff;--border: #e5e7eb;--border-dark: #d1d5db;--text: #111827;--text-secondary: #4b5563;--text-muted: #9ca3af;--brand: #0f172a;--accent: #16a34a;--accent-bg: rgba(22, 163, 74, .08);--red: #dc2626;--red-bg: rgba(220, 38, 38, .07);--amber: #d97706;--amber-bg: rgba(217, 119, 6, .08);--blue: #2563eb;--blue-bg: rgba(37, 99, 235, .07);--radius: 10px}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Inter,sans-serif;background:var(--bg);color:var(--text);line-height:1.5;-webkit-font-smoothing:antialiased}a{color:var(--blue);text-decoration:none}button{font-family:inherit;cursor:pointer}input,select,textarea{font-family:inherit;font-size:16px}.container{max-width:760px;margin:0 auto;padding:0 16px 48px}.header{background:var(--brand);color:#fff;padding:14px 16px;position:sticky;top:0;z-index:40}.header-inner{max-width:760px;margin:0 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