#renzheng_box .container {
    width: 100%;
    max-width: 800px;
    text-align: center;
}

#renzheng_box h1 {
    color: #2c3e50;
    margin-bottom: 40px;
    font-weight: 600;
    font-size: 28px;
}

#renzheng_box .cards-container {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 25px;
}

#renzheng_box .card {
    background: white;
    border-radius: 12px;
    padding: 30px;
    width: 280px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
    cursor: pointer;
    transition: all 0.3s ease;
    border: 2px solid #e6e9ed;
    text-align: center;
}

#renzheng_box .card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.12);
}

#renzheng_box .card.selected {
    border-color: #4d6bfe;
    background-color: #f0f8ff;
}

#renzheng_box .card.selected .icon {
    background-color: #4d6bfe;
    color: white;
}

#renzheng_box .icon {
    width: 70px;
    height: 70px;
    border-radius: 50%;
    margin: 0 auto 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: #e6e9ed;
    color: #7f8c8d;
    font-size: 28px;
    transition: all 0.3s ease;
}

.card-title {
    font-size: 20px;
    color: #2c3e50;
    margin-bottom: 15px;
    font-weight: 600;
}

.card-desc {
    color: #7f8c8d;
    font-size: 14px;
    line-height: 1.6;
}

.submit-btn {
    margin-top: 40px;
    padding: 14px 40px;
    background-color: #3f5ef8;
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    cursor: pointer;
    transition: background-color 0.3s;
    font-weight: 500;
}

.submit-btn:hover {
    background-color: #3f5ef8;
}

@media (max-width: 650px) {
    .cards-container {
        flex-direction: column;
        align-items: center;
    }

    .card {
        width: 100%;
        max-width: 350px;
    }
}

.goback{
    width: 80%;
    margin: 14px auto;
    color: #4d6bfe;
    cursor: pointer;
    font-size: 16px;
}