/* ===== 基础重置 + 页面容器 ===== */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html, body {
    height: 100%;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif;
    background: #f2f3f5;
    color: #333;
    -webkit-font-smoothing: antialiased;
}

a {
    text-decoration: none;
    color: inherit;
}

.app {
    max-width: 480px;
    margin: 0 auto;
    min-height: 100vh;
    background: #f2f3f5;
    padding-top: 44px;
    padding-bottom: 70px;
    position: relative;
}