:root{--color-brand:#1a4299;--color-brand-light:#eef4ff;--color-text-primary:#111827;--color-text-secondary:#475467;--color-text-muted:#98a2b3;--color-border:#e5eaf2;--color-surface:#fff;--color-surface-subtle:#f7f8fa;--color-page:#f4f6fb;--radius-sm:.5rem;--radius-md:.75rem;--radius-lg:1rem;--shadow-card:0 .625rem 1.75rem #10182814;--font-sans:"Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif}*,:before,:after{box-sizing:border-box;margin:0;padding:0}html,body,#app{min-width:0;min-height:100%;margin:0}html{scroll-behavior:smooth;font-size:100%}body{color:var(--color-text-primary);background:var(--color-surface);font-family:var(--font-sans);-webkit-font-smoothing:antialiased;text-rendering:optimizelegibility}button,input,textarea,select{font:inherit}