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

body {
    font-family: 'Inter', sans-serif;
    background-color: #f1f5f9;
    color: #1e293b;
    line-height: 1.5;
    overflow: hidden;
    height: 100vh;
}

/* 菜单打开时锁定背景滚动 */
body.menu-open {
    overflow-y: hidden;
}