:root{--bg:#f6f7f9;--card:#fff;--ink:#0f172a;--muted:#5b6577;--line:#e3e7ee;--brand:#0f766e;--brand-ink:#fff;--brand-soft:#e6f4f2;--warn-bg:#fff7e6;--warn:#8a5300;--radius:14px;--shadow:0 1px 2px #0f172a0d, 0 8px 24px #0f172a0f;color:var(--ink);background:var(--bg);font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;line-height:1.5}*{box-sizing:border-box}body{margin:0}a{color:var(--brand)}.wrap{max-width:1120px;margin:0 auto;padding:0 20px}[hidden]{display:none!important}.site-header{background:var(--card);border-bottom:1px solid var(--line)}.header-inner{justify-content:space-between;align-items:center;height:60px;display:flex}.brand{color:var(--ink);align-items:center;gap:10px;font-size:1.1rem;font-weight:700;text-decoration:none;display:flex}.site-header nav a,.site-footer nav a{color:var(--muted);margin-left:18px;font-size:.95rem;text-decoration:none}.site-header nav a:hover,.site-footer nav 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