:root{--font-primary: "Segoe UI", -apple-system, BlinkMacSystemFont, Roboto, Helvetica, Arial, sans-serif;--bg-app: #f8fafc;--bg-surface: #ffffff;--text-primary: #111111;--accent-red: #df0000;--radius-sm: 4px;--radius-md: 8px;--radius-lg: 16px;--chip-height: clamp(20px, 3vh, 26px);--chip-padding: clamp(2px, .6vw, 4px) clamp(5px, 1.4vw, 9px);--floor-code-size: clamp(2.2rem, 7vw, 3.4rem);--transition-fast: .18s cubic-bezier(.16, 1, .3, 1);--transition-smooth: .35s cubic-bezier(.16, 1, .3, 1)}*{box-sizing:border-box;margin:0;padding:0;-webkit-tap-highlight-color:transparent}html{margin:0;padding:0;width:100%;height:100%;overflow-x:hidden}body{font-family:var(--font-primary);background-color:#f1f5f9;color:var(--text-primary);overflow-x:hidden;width:100%;min-height:100%;line-height:1.4;-webkit-font-smoothing:antialiased}button,input,select,textarea{font-family:inherit;outline:none}.app-container{margin:0 auto;display:flex;flex-direction:column;background:#fff;box-shadow:0 0 30px #0000001f;position:relative;width:100%;max-width:480px;min-height:100vh;overflow-x:hidden}.main-content{flex:1;width:100%;display:flex;flex-direction:column}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:#f1f5f9}::-webkit-scrollbar-thumb{background:#cbd5e1;border-radius:4px}