:root{--paper:#f5f7fb;--white:#fff;--ink:#17253e;--muted:#65738a;--blue:#2563eb;--deep:#143ea8;--soft:#eaf1ff;--line:#dfe5ef;--orange:#b45309;--radius:10px;font-family:'Segoe UI','Microsoft YaHei',sans-serif;color:var(--ink);background:var(--paper);font-synthesis:none}
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.site-header{background:white;border-bottom:1px solid var(--line)}.header-inner{min-height:76px;display:flex;align-items:center;justify-content:space-between;gap:25px}.brand{display:inline-flex;align-items:center;gap:11px;font-size:21px;font-weight:750;white-space:nowrap;letter-spacing:-.02em}.brand img{width:37px;height:37px}.brand small{display:none}.main-nav{display:flex;align-items:center;gap:25px;font-size:14px;font-weight:550;white-space:nowrap}.main-nav a[aria-current=page]{color:var(--blue)}.nav-cta{color:var(--blue);padding:7px 14px;border:1px solid #c9d8fa;border-radius:6px}.menu-toggle{display:none;border:1px solid var(--line);background:white;padding:6px 12px;border-radius:6px}.overline{display:none}
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