/* 移动端优先样式 */
.container {
    max-width: 576px;
    padding: 1rem;
}

.card {
    margin-bottom: 1.5rem;
    border-radius: 0.8rem;
}

.form-select {
    margin-bottom: 1rem;
}

#certPreview {
    position: relative;
    background-image: url('../images/cert_bg.jpg');
    background-size: cover;
    min-height: 600px;
}

.cert-field {
    position: absolute;
    font-family: 'SimSun';
    font-size: 1.2rem;
}

@media (min-width: 768px) {
    /* PC端管理后台样式 */
    .admin-container {
        max-width: 1200px;
    }
}