.page-div-banner {
    width: 100%;
    position: relative;
    z-index: 2;
}

.page-div-banner img {
    width: 100%;
}

.page-div-banner-title {
    position: absolute;
    color: #fff;
    left: 20%;
    top: 40%;
}

.page-div-banner-title h2 {
    font-size: 50px;
    font-weight: bold;
}

.page-div-banner-title p {
    font-size: 20px;
}

.page-section {
    /* position: relative;
    padding-top: 80px;
    padding-bottom: 80px;
    color: #898798;
    overflow: hidden; */
    margin: 50px auto;
    color: #666666;

}

.portfolio-item {
    cursor: pointer;
}

.portfolio-item img {
    transition: .5s;
}

.portfolio-item:hover img {
    transform: scale(1.1);
}

.portfolio-item .portfolio-overlay {
    position: absolute;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    /* background: rgba(98, 34, 204, .9); */
    transition: .5s;
    opacity: 0;
}

.portfolio-item:hover .portfolio-overlay {
    opacity: 1;
}


.portfolio-item .title {}

.portfolio-item .title-txt {
    font-size: 16px;
    white-space: nowrap;
    text-overflow: ellipsis;
    margin: 0;
    overflow: hidden;
}

.portfolio-item .title-date {
    color: #333;
    font-size: 16px;
    white-space: nowrap;
    text-overflow: ellipsis;
    margin: 0;
    overflow: hidden;
}

.portfolio-item :hover .title-txt {
    color: #1d8c80;
}



/* 手机 */
@media only screen and (max-width:950px) {
    .page-div-banner{
        margin: 44px 0 0 0;
    }
    .page-div-banner-title{
        top: 30%;
        left: 5%;
    }

    .page-div-banner-title h2{
        font-size: 24px;
    }
    .page-div-banner-title p{
        font-size: 16px;
    }


    .page-section {
        margin: 20px auto;
    }

   
}