:root{--primary:#1e3a8a;--primary-light:#2563eb;--text-main:#0f172a;--text-sub:#334155;--text-muted:#52647c;--bg-main:#f8fafc;--bg-card:#fff;--primary-bg:#eff6ff;--accent-light:#f59e0b;--border-color:#e2e8f0;--control-border:#64748b;--radius:18px;--shadow:0 2px 6px rgba(15,23,42,.06)}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:100px}body{margin:0;color:var(--text-main);background:var(--bg-main);font-family:-apple-system,BlinkMacSystemFont,"Apple SD Gothic Neo","Malgun Gothic",sans-serif;font-size:16px;line-height:1.8;word-break:keep-all;overflow-wrap:anywhere}a{color:var(--primary);text-underline-offset:4px}button,input,select,textarea{font:inherit}button,a,input,select,textarea{touch-action:manipulation}button{cursor:pointer}a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,summary:focus-visible{outline:3px solid var(--primary-light);outline-offset:4px}img,svg{max-width:100%;vertical-align:middle}h1,h2,h3{line-height:1.4;letter-spacing:-.04em;overflow-wrap:anywhere}h1{font-size:38px;font-weight:800;margin:12px 0 20px}h2{font-size:26px;font-weight:800;margin:0 0 20px}h3{font-size:20px;margin:0 0 12px}p{margin:0 0 18px}ul,ol{padding-left:24px}li{margin:8px 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