/* 全局重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* 页面基础样式 - 适配移动端 */
body {
    background-size: cover;
    font-family: "PingFang SC", "Microsoft YaHei", sans-serif;
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
    overflow-x: hidden;
}

/* 背景遮罩 */
body::before {
    content: "";
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(255, 255, 255, 0.5);
    z-index: -1;
}