/* 重置基础样式 */ * { margin: 0; padding: 0; box-sizing: border-box; } :root { font-family: Inter, system-ui, Avenir, Helvetica, Arial, sans-serif; line-height: 1.5; font-weight: 400; color: #213547; background-color: #ffffff; } a { text-decoration: none; color: inherit; } a:hover { color: #535bf2; } body { margin: 0; padding: 0; height: 100%; width: 100%; overflow: hidden; /* 防止滚动条 */ display: block; /* 移除flex布局 */ } h1 { font-size: 3.2em; line-height: 1.1; } button { border: none; background: none; cursor: pointer; } button:hover { border-color: #646cff; } button:focus, button:focus-visible { outline: 4px auto -webkit-focus-ring-color; } .card { padding: 2em; } #app { height: 100%; width: 100%; margin: 0; padding: 0; overflow: hidden; display: flex; /* 添加flex布局 */ flex-direction: column; } /* 清除浮动 */ .clearfix::after { content: ''; display: table; clear: both; } @media (prefers-color-scheme: light) { :root { color: #213547; background-color: #ffffff; } a:hover { color: #747bff; } button { background-color: #f9f9f9; } }