:root{--paper:#F6F3EC;--deep:#E8F4F2;--surface:#FFFCFA;--soft:#FDECEA;--ink:#1A2A28;--text:#2C3A38;--muted:#5A6B68;--aux:#7A8A86;--teal:#0E8A7D;--teal-dark:#0A5F56;--red:#C62828;--border:rgba(14,138,125,.22);--shadow:0 14px 36px rgba(26,42,40,.10);--max:1160px;--rail:56px;--header:70px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--text);font-family:"Microsoft YaHei","PingFang SC",Arial,sans-serif;font-size:16px;line-height:1.8;overflow-x:hidden}body.panel-open{overflow:hidden}a{color:inherit;text-decoration:none}button,input{font:inherit}button{cursor:pointer}.wide-shell{width:min(1220px,calc(100% - 32px));margin:0 auto}.content-shell{width:min(var(--max),calc(100% - 88px));margin:0 auto;position:relative}.skip-link{position:fixed;left:16px;top:-60px;z-index:9999;background:#fff;padding:10px 14px}.skip-link:focus{top:10px}.site-header{position:fixed;z-index:1000;inset:0 0 auto 0;box-shadow:0 5px 20px 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