.su2 {
    width: 100%;
    position: relative;
    background: #F7F7F7;
    padding-bottom: 5%;
}

.su2>.Pro_Nav {
    width: 100%;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: #fff;
}

.su2>.Pro_Nav>a {
    font-family: '思源黑体 CN Regular';
    font-weight: 400;
    color: #03172E;
    font-size: var(--20px--);
    width: calc(100%/5);
    height: 100%;
    text-align: center;
    transition: all .6s ease;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
}

.su2>.Pro_Nav>a::before {
    content: '';
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    width: 0%;
    height: 3px;
    background-color: #D7141C;
    transition: width 1s ease;
}

.su2>.Pro_Nav>a:hover::before {
    width: 30%;
}

.navActive {
    color: #D7141C;
}

.navActive::before {
    width: 30% !important;
}

.pro_list {
    padding: 5%;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.suItem {
    position: relative;

}

.suItem>div {
    width: 100%;
    height: 400px;
    overflow: hidden;
    display: flex;
    justify-content: center;
    align-items: center;
    background-color: #fff;
    transition: all .6s ease;
    padding: 5%;
}

.suItem>div>img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.suItem:hover>div {
    box-shadow: 0px 8px 14px 0px rgba(0, 0, 0, 0.23);
}

.suItem>p {
    font-family: '思源黑体 CN Regular';
    font-size: var(--20px--);
    height: 60px;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: all .6s ease;
    margin-top: 20px;
}

.suItem:hover>p {
    color: #D7141C;
}

@media (max-height: 750px) {
    .suItem>p {
        margin-top: 0;
    }
}

@media (max-width: 1200px) {
    .pro_list {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 768px) {
    .pro_list {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 480px) {
    .pro_list {
        grid-template-columns: repeat(1, 1fr);
    }

    .su2>.Pro_Nav {
        height: 160px;
        flex-wrap: wrap;
    }
    .su2>.Pro_Nav>a{
        width: calc(100% / 2);
        height: auto;
    }
    .su2>.Pro_Nav>a::before {
        top: 150%;
    }
}