
:root{--background:#F8F7F3;--paper:#FFFDF8;--surface:#fff;--soft:#F1F1EA;--graphite:#272E33;--moss:#526A47;--moss-soft:#E9EFE5;--coral:#BD5944;--coral-soft:#F8E8E2;--sand:#E2CDAC;--blue:#5B8194;--title:#263138;--body:#45525B;--muted:#65717A;--border:#E0E3DC}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--background);color:var(--body);font:16px/1.78 system-ui,-apple-system,"PingFang SC","Microsoft Yahei",sans-serif}a{color:inherit;text-decoration:none}a:hover{color:var(--coral)}button,input,select{font:inherit}button{cursor:pointer}h1,h2,h3{line-height:1.32;color:var(--title);margin:0 0 .6em}h1{font-size:clamp(27px,3.2vw,44px)}h2{font-size:clamp(23px,2.4vw,28px)}h3{font-size:19px}p{margin:.5em 0 1em}.shell{width:min(1320px,calc(100% - 64px));margin:auto}.skip{position:absolute;left:-9999px;top:0}.skip:focus{left:8px;z-index:100;background:#fff;padding:10px}.masthead{background:var(--paper);border-bottom:1px solid 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