:root{--bg:#F6F8F8;--paper:#fff;--mist:#EAF0F2;--navy:#122E3B;--panel:#1A4050;--teal:#168E96;--link:#226D9D;--heading:#193946;--body:#374D58;--muted:#647981;--line:#D9E3E6;--foot:#0C2632}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:105px}body{margin:0;font:16px/1.8 Arial,'PingFang SC','Microsoft YaHei',sans-serif;background:var(--bg);color:var(--body)}img{max-width:100%}a{color:var(--link);text-underline-offset:3px}a:hover{color:var(--teal)}:focus-visible{outline:3px solid #e09b34;outline-offset:3px}h1,h2,h3{color:var(--heading);line-height:1.36;letter-spacing:.01em}h1{font-size:clamp(27px,3.1vw,40px);margin:0 0 22px}h2{font-size:clamp(21px,2.3vw,27px);margin:0 0 20px}h3{font-size:19px;margin:25px 0 10px}p{margin:0 0 17px}ul,ol{padding-left:24px}li{margin-bottom:8px}strong{color:var(--heading)}.container{width:min(1220px,calc(100% - 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