:root{--bg:#F4F7FA;--paper:#fff;--soft:#EAF1F6;--mint:#E9F8F8;--nav:#102E46;--nav2:#163C57;--teal:#13B8C5;--blue:#237BD3;--heading:#18364B;--body:#344C60;--muted:#64798A;--line:#DCE6ED;--radius:14px}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:22px}body{margin:0;background:var(--bg);font:16px/1.8 Arial,"PingFang SC","Microsoft YaHei",sans-serif;color:var(--body);overflow-wrap:break-word}body.drawer-open{overflow:hidden}a{color:#155D9B;text-underline-offset:3px}a:hover{color:#087b91}button{font:inherit}button,a{ -webkit-tap-highlight-color:transparent} :focus-visible{outline:3px solid #13B8C5;outline-offset:3px}h1,h2,h3,p{margin-top:0}h1,h2,h3{color:var(--heading);line-height:1.38}h1{font-size:clamp(32px,3vw,36px);letter-spacing:-.025em}h2{font-size:clamp(24px,2.4vw,28px);margin-bottom:18px}h3{font-size:20px;margin-bottom:12px}p{margin-bottom:18px}ul,ol{padding-left:24px}li+li{margin-top:6px}small,.eyebrow{color:var(--muted)}.container{width:min(100% - 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