:root{--sidebar:#182332;--nav:#263a51;--background:#f7f9fb;--surface:#fff;--text:#101c2d;--muted:#637184;--line:#dce4ed;--accent:#0e5860;--teal:#53d8d1;--danger:#954527}*{box-sizing:border-box}body{color:var(--text);background:var(--background);margin:0;font-family:Arial,Microsoft YaHei,PingFang SC,sans-serif;font-size:16px;line-height:1.65}a{color:inherit;text-decoration:none}button,input,textarea,select{font:inherit}button{cursor:pointer;border:1px solid var(--line);color:var(--accent);background:#fff;border-radius:5px;justify-content:center;align-items:center;gap:9px;padding:10px 15px;font-size:15px;line-height:1.5;display:inline-flex}button:disabled{opacity:.55;cursor:default}button:hover:not(:disabled){background:#edf5f5}button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{outline-offset:3px;outline:3px solid #79c4c5}input,textarea,select{max-width:100%;color:var(--text);background:#fff;border:1px solid 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