:root{--bg:#f6fafc;--white:#fff;--soft:#eaf6fa;--soft2:#edf4f8;--cyan:#25c8d1;--sky:#25b6e8;--blue:#1787db;--navy:#174b78;--heading:#183a56;--ink:#31485d;--muted:#687d8e;--line:#dce9f0;--footer:#123653;--width:1180px}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:35px}body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.78 Arial,"PingFang SC","Microsoft YaHei",sans-serif;overflow-x:hidden}a{color:var(--navy);text-decoration-color:var(--sky);text-underline-offset:4px}a:hover{color:#007cae}a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid var(--sky);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,3.2vw,42px);letter-spacing:-.03em}h2{font-size:26px;letter-spacing:-.02em}h3{font-size:20px}p{margin-bottom:1.1em}small{font-size:.76em}.container{width:min(calc(100% - 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