:root{--navy:#123954;--deep:#0b283e;--blue:#019ad6;--ink:#18384d;--muted:#617582;--line:#dce5e9;--pale:#f2f7fa;--white:#fff;--container:1200px}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:105px}body{margin:0;color:var(--ink);font-family:Arial,"Helvetica Neue","PingFang SC","Microsoft YaHei",sans-serif;-webkit-font-smoothing:antialiased;font-size:15px;line-height:1.65}button,input,textarea{font:inherit}button,a,input,textarea{-webkit-tap-highlight-color:transparent}button,a{touch-action:manipulation}a{color:inherit;text-decoration:none}button{cursor:pointer}img{display:block;max-width:100%;height:auto}button:focus-visible,a:focus-visible{outline:3px solid var(--blue);outline-offset:5px}input:focus-visible,textarea:focus-visible{outline:2px solid var(--blue);outline-offset:2px}[hidden]{display:none!important}::selection{background:#bdeafa;color:var(--deep)}.container{width:min(var(--container),calc(100% - 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