* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: system-ui, 'Segoe UI', 'PingFang SC', Roboto, 'Helvetica Neue', sans-serif;
    background: #f4f5f7;
    color: #1e293b;
    height: 100vh;
    overflow: hidden;
}

::-webkit-scrollbar {
    width: 5px;
    height: 5px;
}
::-webkit-scrollbar-track {
    background: #eef2f6;
    border-radius: 4px;
}
::-webkit-scrollbar-thumb {
    background: #cbd5e1;
    border-radius: 4px;
}