.nav {
	display: flex;
    padding: 40px 0 50px;
    margin: 0 auto;
    width: 1550px;
    border-bottom: solid 1px #9e7b4b;
    font-size: 36px;
    color: #101010;
}

.nav > .nav-item {
    position: relative;
    margin-right: 120px;
    display: flex;
    align-items: center;
    color: #101010;
    outline: none;
    text-decoration: none;
     font-family: SourceHanSerifSC-Regular!important;
}
.nav > .nav-item.active {
    color:#9e7b4b;
     font-family: SourceHanSerifSC-Bold !important
}






.nav > .nav-item .nav-item-txt {
    flex: 1;
}
.nav > .nav-item .decorate {
    flex: none;
    position: absolute;
    right: -80px;
}
.nav > .nav-item.active::before {
    content: '';
    width: 100%;
    position: absolute;
    bottom: -20px;
    border-bottom: solid 4px #9e7b4b;
}


.learning .learning-item {
    margin-top: 40px;
    display: flex;
    border-radius: 16px;
    box-shadow: 0px 4px 12px 0px rgba(153,153,153,0.3);
}
.learning .learning-item > .learning-item-img {
    display: block;
    width: 703px;
    height: 366px;
    border-radius: 16px 0 0 16px;
  	object-fit: cover;
}
.learning .learning-item > .learning-item-info {
    flex: 1;
    background: #fff;
    padding: 20px 30px 5px;
    border-radius: 0 16px 16px 0;
    font-size: 20px;
    color: #101010;
}
.learning .learning-item > .learning-item-info > .learning-item-info-tit {
    font-size: 30px;
    font-weight: bold;
}
 .learning .learning-item > .learning-item-info > .learning-item-info-tit:hover {
        color: #9e7b4b;
    }

.research > .research-list > .research-list-item:hover .research-list-item-info .research-list-item-info-time .research-list-item-info-time-decorateLine {
        transform: translateX(-10px) scale(1.01);
    }
.learning .learning-item > .learning-item-info > .learning-item-info-li {
    margin-top: 20px;
  	display: flex;
}
.learning .learning-item > .learning-item-info > .learning-item-info-li > .learning-item-info-li-label {flex: none;width: 100px;}
.learning .learning-item > .learning-item-info > .learning-item-info-li > .learning-item-info-li-val {
    margin-left: 10px;
    color: #9e7b4b;
}
.learning .learning-item > .learning-item-info > .learning-item-info-con {
    margin-top: 30px;
  	line-height: 1.9;
}
.learning .learning-item > .learning-item-info > .learning-item-info-btn {
    display: inline-block;
    margin-top: 25px;
    padding: 6px 20px;
    font-size: 18px;
    color: #9e7b4b;
    background: url("../img/btn.png") no-repeat;
    background-size: 100% 100%;
}


.research .research-list {
    display: flex;
    flex-wrap: wrap;
}
.research .research-list .research-list-item {
    display: block;
    flex: 0 0 32%;
    margin-top: 50px;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0px 4px 12px 0px rgba(153,153,153,0.3);
}
.research .research-list .research-list-item:not(:nth-child(3n)) {
    margin-right: 25px;
}
.research .research-list .research-list-item > .research-list-item-info {
    flex: 1;
    background: #fff;
    padding: 25px 0px 20px;
    font-size: 20px;
}
.research .research-list .research-list-item > .research-list-item-info > .research-list-item-info-tit {
    position: relative;
    padding: 0 30px;
    margin: 0 auto;
    height: 35px;
    font-size: 26px;
    color: #9e7b4b;
    max-width: 185px;
    text-align: center;
    max-height: calc(2em* 1.5);
}
.research .research-list .research-list-item > .research-list-item-info > .research-list-item-info-tit::after {
    content: '';
    background-image: url("../img/zx_title1.png");
    background-repeat: no-repeat;
    background-size: cover;
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    z-index: 1;
    width: 22px;
    height: 33px;
}
.research .research-list .research-list-item > .research-list-item-info > .research-list-item-info-tit::before {
    content: '';
    background-image: url("../img/zx_title1.png");
    background-repeat: no-repeat;
    background-size: cover;
    position: absolute;
    top: 0;
    left: 0;
    bottom: 0;
    right: 0;
    z-index: 1;
    width: 22px;
    height: 33px;
    transform: rotateY(180deg);
}
.research .research-list .research-list-item > .research-list-item-info > .research-list-item-info-text {
    margin-top: 15px;
    padding: 0 30px;
  	height: 200px;
    line-height: 2;
    font-size: 20px;
    color: #101010;
}
.research .research-list .research-list-item > .research-list-item-info > .research-list-item-info-time {
    border-top: solid 1px #e0e0e0;
    margin-top: 20px;
    padding: 25px 30px 0;
   	height: 49px;
  	box-sizing: border-box;
    font-size: 20px;
    color: #666;
}
.research .research-list .research-list-item > .research-list-item-info > .research-list-item-info-time > .research-list-item-info-time-decorateLine {
    float: right;
    width: 55px;
  	transition: transform .5s;
}

@media screen and (max-width: 2560px) {

    .nav {
        display: flex;
        padding: 40px 0 50px;
        margin: 0 auto;
        width: 1550px;
        border-bottom: solid 1px #9e7b4b;
        font-size: 36px;
        color: #101010;
    }
    .research {
        width: 1550px;
        height: 100%;
        margin: 0 auto;
    }

    .learning {
        width: 1550px;
        height: 100%;
        margin: 0 auto;
    }


}

@media screen and (max-width: 1920px) {
    .nav {
        display: flex;
        padding: 40px 0 50px;
        margin: 0 auto;
        width: 1550px;
        border-bottom: solid 1px #9e7b4b;
        font-size: 36px;
        color: #101010;
    }
    .research {
        width: 1550px;
        height: 100%;
        margin: 0 auto;
    }

    .learning {
        width: 1550px;
        height: 100%;
        margin: 0 auto;
    }

}

@media screen and (max-width: 1440px) {


    .nav {
        display: flex;
        padding: 40px 0 50px;
        margin: 0 auto;
        width: 1250px;
        border-bottom: solid 1px #9e7b4b;
        font-size: 36px;
        color: #101010;
    }

    .research {
        width: 1250px;
        height: 100%;
        margin: 0 auto;
    }

    .learning {
        width: 1250px;
        height: 100%;
        margin: 0 auto;
    }

}