.review-grids .item {
    padding: 0px 10px;
}

.review-grids .item:hover {
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.3);
    transition: box-shadow 0.3s ease-in-out;
    cursor: pointer;
}

/* body {
    -ms-overflow-style: none; 
    overflow: -moz-scrollbars-none; 
}

body::-webkit-scrollbar {
    display: none; 
} */

.overlay {
    height: 0%;
    width: 100%;
    position: fixed;
    z-index: 1;
    top: 0;
    left: 0;
    background-color: rgb(0, 0, 0);
    background-color: rgba(255, 255, 255, 1);
    overflow-y: scroll;
    transition: 0.5s;
    overscroll-behavior: contain;
}

.overlay-content {
    position: relative;
    top: 5%;
    width: 100%;
    text-align: left;
    margin-top: 30px;
    padding: 10px 130px 50px 130px;
}

.overlay-content p {
    text-align: left;
}

.overlay::-webkit-scrollbar {
    height: 9px;
    width: 9px;
    background-color: #F5F5F5;
}

.overlay::-webkit-scrollbar-thumb {
    border-radius: 10px;
    background-color: #979797;
}

.overlay a {
    cursor: pointer;
}

.overlay p {
    font-family: "Microsoft YaHei", Arial, Helvetica, sans-serif, "宋体";
    font-weight: 500;
    font-size: 21px;
}

.overlay .review-en {
    font-size: 15px;
}

.overlay h1 {
    font-family: "Microsoft YaHei", Arial, Helvetica, sans-serif, "宋体";
    font-weight: bold;
}
.overlay .closebtn {
    position: absolute;
    top: 10px;
    right: 35px;
    font-size: 60px;
    text-decoration: none;
    border: none;
}

.closebtn {
    color: RGB(16, 126, 230);
}

.closebtn:hover {
    color: RGB(16, 66, 150);
}

.subtitle {
    color: #979797;
}

#overlay-title,
.subtitle,
.date {
    text-align: center !important;
}

#backtotop {
    display: inline-block;
    background: rgb(0, 0, 0);
    background: rgba(0, 0, 0, 0.7);
    width: 50px;
    height: 50px;
    text-align: center;
    -webkit-border-radius: 35px;
    -moz-border-radius: 35px;
    border-radius: 35px;
    position: fixed;
    bottom: 30px;
    right: 35px;
    transition: background-color .3s,
        opacity .5s, visibility .5s;
    opacity: 0;
    visibility: hidden;
    z-index: 1000;
}

#backtotop i {
    color: #fff;
    margin: 0;
    position: relative;
    top: 11px;
    -webkit-transition: all 0.3s ease;
    -moz-transition: all 0.3s ease;
    -ms-transition: all 0.3s ease;
    -o-transition: all 0.3s ease;
    transition: all 0.3s ease;
}

#backtotop:hover {
    background: rgba(0, 0, 0, 0.9);
}

#backtotop:hover i {
    color: #fff;
    top: 5px;
}

#backtotop.show {
    opacity: 1;
    visibility: visible;
}

@media screen and (max-width: 600px) {
    .review-grids .item {
        padding: 1px 10px;
    }

    .overlay-content {
        padding: 15px 55px 50px 55px;
    }

    .overlay-content h1 {
        font-size: 30px;
    }

    .overlay-content .review-cn p {
        font-size: 20px;
    }

    .overlay-content .review-en {
        font-size: 16px;
    }
}