:root{--font-ui:"Poppins", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;--text-primary:#192535;--text-secondary:#4c5f76;--surface:#fff;--surface-soft:#f4f8fb;--line:#d8e1ea;--focus:#1686ff;--shadow-soft:0 24px 48px #142e4d1f}*,:before,:after{box-sizing:border-box}html,body,#app{min-height:100%;margin:0}body{font-family:var(--font-ui);color:var(--text-primary);background:var(--surface-soft);text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased}input,select,button,textarea{font:inherit}a{color:inherit}