:root{--navy:#152640;--blue:#285cf4;--ink:#17243b;--muted:#66758c;--line:#e3e8ef;--bg:#f5f7fb;--green:#138665;--amber:#b6690a;--red:#d34a4a;--radius:14px;font-family:Inter,"Microsoft YaHei","PingFang SC",system-ui,sans-serif;color:var(--ink);font-synthesis:none}*{box-sizing:border-box}body{margin:0;background:var(--bg);font-size:16px;line-height:1.6}button,input,select,textarea{font:inherit}button,a,input,select,textarea{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.46}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid 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