:root{--primary-color:#0ea5e9;--primary-hover:#0284c7;--bg-color:#f1f5f9;--card-bg:#fff;--text-main:#0f172a;--text-muted:#64748b;--border-color:#e2e8f0;--shadow-sm:0 1px 2px 0 rgba(0,0,0,.05);--shadow-md:0 4px 6px -1px rgba(0,0,0,.05),0 2px 4px -1px rgba(0,0,0,.03);--shadow-lg:0 10px 15px -3px rgba(0,0,0,.05),0 4px 6px -2px rgba(0,0,0,.02);--radius-md:8px;--radius-lg:12px;--radius-xl:16px}*{box-sizing:border-box}body{margin:0;background:var(--bg-color);color:var(--text-main)}#app{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Microsoft YaHei,Arial,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}button{transition:all .2s ease;font-weight:500}button:active{transform:scale(.98)}input,select,textarea{transition:all .2s ease;font-family:inherit}input:focus,select:focus,textarea:focus{outline:none;border-color:var(--primary-color)!important;box-shadow:0 0 0 3px rgba(14,165,233,.15)}