/* 主样式文件 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background: #f5f5f5;
    overflow: hidden;
    -webkit-touch-callout: none;
    -webkit-user-select: none;
    user-select: none;
}

/* 基础按钮样式 */
button {
    border: none;
    outline: none;
    cursor: pointer;
    -webkit-tap-highlight-color: transparent;
}

button:active {
    opacity: 0.8;
}

/* 隐藏类 */
.hidden {
    display: none !important;
}

/* 显示类 */
.show {
    display: block !important;
}

/* 安全区域适配 */
.safe-area-top {
    padding-top: env(safe-area-inset-top);
}

.safe-area-bottom {
    padding-bottom: env(safe-area-inset-bottom);
}