.research .item {
    width: 280px;
    margin-bottom: 30px;
}
.research .item:not(:nth-child(4n)) {
    margin-right: 26.6px;
}
.research .item .picture_container {
	background: #fff;
    border-radius: 10px;
    padding-top: 64.5%;
}
.research .item .explain_title  {
	font-size: 16px;
    color: #666666;
    text-align: center;
    margin-top: 15px;
}
.research .item:hover .picture_container  {
    box-shadow: 0px 0px 20px rgba(50,50,50,0.3);
    -webkit-transform: translateY(-10px);
    transform: translateY(-10px);
}
.research .item:hover .explain_title  {
	color: #006bb8;
}




/* masking */
.masking {
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    right: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 100000;
    max-width: 1920px;
    margin: 0 auto;
    overflow-y: auto;
    display: none;
    padding-bottom: 4%;
}
.masking .center {
    position: relative;
    width: 970px;
    background: #ffffff;
    border-radius: 10px;
    padding: 16px 20px;
    padding-bottom: 0;
    top: -100%;
    opacity: 0;
}
.masking .center .swiper-container {
    border-radius: 10px;
}
.masking .center .picture_container {
    padding-top: 64.5%;
    background: #fff;
}
.masking .center .explain_content {
    text-align: center;
    line-height: 58px;
    font-size: 16px;
    color: #666;
}
.masking .center .close {
    position: absolute;
    right: -18px;
    top: -18px;
    width: 50px;
    height: 50px;
    background: #fff;
    border-radius: 50%;
    text-align: center;
    line-height: 50px;
    font-size: 20px;
    color: #b5b5b5;
    cursor: pointer;
    z-index: 10;
    box-shadow: 0 0 10px rgba(0,0,0,0.1);
}
.masking .center .close:hover {
    background: #006bb8;
    color: #fff;
}
.masking .swiper-button {
    z-index: 11;
    width: 50px;
    height: 50px;
    background: #fff;
    border-radius: 50%;
    text-align: center;
    line-height: 50px;
    font-size: 20px;
    color: #b5b5b5;
    margin-top: -25px;
    box-shadow: 0 0 10px rgba(0,0,0,0.1);
    opacity: 1;
}
.masking .swiper-button:hover {
    background: #006bb8;
    color: #fff;
}
.masking .swiper-button.prev {
    left: -25px;
}
.masking .swiper-button.next {
    right: -25px;
}
.masking .swiper-button[class*=disable] {
    color: rgba(181,181,181,0.3);
}
.anchor {
    height: 121px;
    -webkit-transform: translateY(-181px);
    transform: translateY(-181px);
}
#team.anchor {
    height: 121px;
    -webkit-transform: translateY(-181px);
    transform: translateY(-181px);
}






/* 响应 */
@media screen and (max-width: 1199px) {
    .research .item {
        width: 23.5%;
        margin-bottom: 30px;
    }
    .research .item:not(:nth-child(4n)) {
        margin-right: 2%;
    }
}
@media screen and (max-width: 1024px) {
    .research .item .picture_container {
        border-radius: 5px;
    }
    .research .item .explain_title  {
        margin-top: 10px;
    }
    .research .item:hover .picture_container  {
        box-shadow: none;
        -webkit-transform: translateY(0);
        transform: translateY(0);
    }
}
@media screen and (max-width: 992px) {
    .masking .center {
        width: 90%;
        padding: 12px 15px;
        padding-bottom: 0;
    }
    .masking .center .close {
        right: -10px;
        top: -10px;
        width: 30px;
        height: 30px;
        line-height: 30px;
        font-size: 14px;
    }
    .masking .swiper-button {
        display: none;
    }
    .masking .center .explain_content {
        line-height: 40px;
        font-size: 14px;
    }
}
@media screen and (max-width: 750px) {
    .research .item {
        width: 32%;
        margin-bottom: 20px;
    }
    .research .item:not(:nth-child(4n)) {
        margin-right: 0;
    }
    .research .item:not(:nth-child(3n)) {
        margin-right: 2%;
    }
}
@media screen and (max-width: 640px) {}
@media screen and (max-width: 480px) {
    .research .item {
        width: 49%;
        margin-bottom: 15px;
    }
    .research .item:not(:nth-child(3n)) {
        margin-right: 0;
    }
    .research .item:not(:nth-child(2n)) {
        margin-right: 2%;
    }
    .research .item .explain_title  {
        margin-top: 5px;
        font-size: 14px;
    }

    .masking .center .explain_content {
        line-height: 30px;
    }
}
@media screen and (max-width: 375px) {}
@media screen and (max-width: 320px) {}

