:root{--bg:#f6f7f9;--surface:#ffffff;--text:#17202b;--muted:#64748b;--border:#e2e8f0;--accent:#2563eb;--accent-hover:#1d4ed8;--accent-soft:#eff4ff;--green:#16803c;--green-soft:#e8f6ed;--red:#b42334;--red-soft:#fdeaec;--gray-soft:#eef1f5;--radius:10px}*{box-sizing:border-box}html{-webkit-text-size-adjust:100%}body{margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;font-size:16px;line-height:1.5;color:var(--text);background:var(--bg)}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}h1{font-size:26px;line-height:1.25;margin:0 0 4px}h2{font-size:18px;margin:0 0 12px}.site-header{background:var(--surface);border-bottom:1px solid var(--border)}.site-header-inner{max-width:860px;margin:0 auto;padding:10px 16px;display:flex;align-items:center;gap:16px}.logo{font-weight:800;font-size:18px;color:var(--text);letter-spacing:-.02em}.logo:hover{text-decoration:none}.logo 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