body {
    font-size: 16px;
}

/* 按钮样式 */
.btn-base {
    cursor: pointer;
    padding: 8px 20px;
    border-radius: 20px;
}

.btn-success {
    background: RGB(7, 193, 86);
    color: #FFF;
}

.btn-default {
    background: RGB(2, 134, 250);
    color: #FFF;
}

/* 加载中 */
.loading::after {
    content: '...';
    animation: loading 1s infinite;
}

@keyframes loading {
    33% {
        content: '.';
    }

    66% {
        content: '..';
    }

    100% {
        content: '...';
    }
}

.card {
    width: 100%;
    margin: 20px auto;
    padding: 24px;
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.1);
}