:root{--ink:#142538;--muted:#5b6b7d;--blue:#2856d8;--line:#dfe5ed;--soft:#f5f7fb;--green:#296b56;--amber:#895e1c;--paper:#fff;--radius:8px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font-family:"Avenir Next","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;-webkit-font-smoothing:antialiased}button,input,select{font:inherit}a{color:var(--blue);text-decoration:none}a:hover{text-decoration:underline}button,a,input,select,summary{touch-action:manipulation}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid var(--blue);outline-offset:4px}button{cursor:pointer}button:disabled{cursor:default;opacity:.4}button,input,select{min-height:42px;border:1px solid #cbd5e1;border-radius:6px;background:#fff;color:var(--ink);padding:9px 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