.innovation-box {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    display: -webkit-flex;
    
}

.innovation-box {
    width: 1190px;
    margin: 100px auto 120px;
}

.innovation-box aside {
    width: 190px;
    margin-right: 100px;
}

.innovation-content {
    width: 900px;
    height: 893px;
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
        -ms-flex-direction: column;
            flex-direction: column;
}

.row {
    width: 900px;
    height: 278px;
    margin: 0 0 30px 0;
}
.item {
    float: left;
    height: 100%;
    width: 445px;
    cursor: pointer;
    overflow: hidden;
    position: relative;
}
.item.column2 {
    margin-left: 9px;
}
.item-img {
    height: 100%;
    width: 100%;
    -webkit-transition: all 1.2s;
    transition: all 1.2s;
    overflow: hidden;
}
.item-mask {
    position: relative;
    left: 0;
    top: -100%;
    width: 100%;
    height: 100%;
    overflow: hidden;
    background-color: #333333;
    opacity: 0.5;
}

.item-text {
    position: absolute;
    top: 50%;
    text-align: center;
    left: 50%;
    width: 310px;
    height: 70px;
    -webkit-transform: translate(-50%, -50%);
        -ms-transform: translate(-50%, -50%);
            transform: translate(-50%, -50%);
    -webkit-transition: all 0s;
    transition: all 0s;
    z-index: 1;
    font-family: SourceHanSansCN-Medium;
    font-size: 24px;
    font-weight: 500;
    letter-spacing: 0.08em;
    color: #ffffff;
}

.innovation-content p {
    font-size: 16px;
    line-height: 28px;
    font-weight: 400;
    color: #333333;
    text-indent: 32px;
    margin-bottom: 30px;
    text-align: justify;
    font-family: "Noto Sans SC";
}

@keyframes moveUp {
    0% {
        opacity: 0;
        -webkit-transform: translateY(10%);
                transform: translateY(10%);
    }
    100% {
        opacity: 100%;
        -webkit-transform: translateY(0);
                transform: translateY(0);
    }
}

@-webkit-keyframes moveUp {
    0% {
        opacity: 0;
        -webkit-transform: translateY(10%);
                transform: translateY(10%);
    }
    100% {
        opacity: 100%;
        -webkit-transform: translateY(0);
                transform: translateY(0);
    }
}

/* 返回顶部样式 */

.fadeInright {
    animation: moveRight 1.5s;
    -webkit-animation: moveRight 1.5s;
}

@keyframes moveRight {
    0% {
        -webkit-transform: translateX(200%);
                transform: translateX(200%);
    }
    100% {
        -webkit-transform: translateX(0);
                transform: translateX(0);
    }
}

@-webkit-keyframes moveRight {
    0% {
        -webkit-transform: translateX(200%);
                transform: translateX(200%);
    }
    100% {
        -webkit-transform: translateX(0);
                transform: translateX(0);
    }
}

.fadeOutright {
    animation: moveOutright 1.5s;
    -webkit-animation: moveOutright 1.5s;
}

@-webkit-keyframes moveOutright {
    0% {
        -webkit-transform: translateX(0);
                transform: translateX(0);
    }
    100% {
        -webkit-transform: translateX(200%);
                transform: translateX(200%);
    }
}

@keyframes moveOutright {
    0% {
        -webkit-transform: translateX(0);
                transform: translateX(0);
    }
    100% {
        -webkit-transform: translateX(200%);
                transform: translateX(200%);
    }
}

.returnTop {
    display: none;
    position: fixed;
    right: 8%;
    bottom: 35%;
    background: url(../images/backtop.png) no-repeat left top;
    width: 60px;
    height: 60px;
}

.returnTop:hover {
    cursor: pointer;
    background: url(../images/backtop-hover.png) no-repeat left top;
}