.error-card {
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    padding: 32px;
    text-align: center;
    margin-top: 60px;
}

.error-icon {
    font-size: 48px;
    margin-bottom: 16px;
}

.error-title {
    font-size: 24px;
    color: var(--text-primary);
    margin-bottom: 12px;
}

.error-message {
    font-size: 16px;
    color: var(--text-secondary);
    margin-bottom: 24px;
}

.error-action {
    display: flex;
    justify-content: center;
    gap: 16px;
}

.btn-retry, .btn-back {
    padding: 8px 24px;
    border-radius: 4px;
    border: none;
    cursor: pointer;
    font-size: 14px;
    transition: all 0.3s;
}

.btn-retry {
    background-color: var(--primary-color);
    color: white;
}

.btn-back {
    background-color: #f5f5f5;
    color: var(--text-primary);
}

.btn-retry:hover {
    background-color: #40a9ff;
}

.btn-back:hover {
    background-color: #e8e8e8;
}