body {
    background-color: #f7f7f7;
}



/* 顶部 */
.top {
	background-color: #fff;
	box-shadow: 0 1px 5px #888;
}




/* abtBanner */
.abtBanner {
    position: relative;
    width: 100%;
    height: auto;
}
.abtBanner .imgbox {
    height: 100%;
    overflow: hidden;
}
.abtBanner img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.abtBanner .layer {
    position: absolute;
    left: 0;
    top: 39%;
    width: 100%;
    text-align: center;
}
.abtBanner .layer  .title {
    color: #fff;
    font-size: 36px;
    font-weight: bold;
    line-height: 6.6667vw;
}
.abtBanner .layer  .subtit {
    height: 3.9583vw;
    color: #fff;
    font-size: 22px;
}
.abtBanner .layer  .subtit::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 2.3958vw;
    height: 0.2083vw;
    background-color: #0075cf;
    margin-left: -1.1979vw;
}
.abtBanner .choose {
    position: absolute;
    left: 50%;
    bottom: 0;
    margin-left: -700px;
    width: 1400px;
    height: 70px;
    background-color: #fff;
}
.abtBanner .choose::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 100%;
    height: 0.1563vw;
    background-color: #efefef;
}
.choose .lisbox {
    padding-left: 2.6042vw;
}
.choose li {
    float: left;
    position: relative;
    margin-right: 2.1875vw;
}
.choose li a {
    display: block;
    color: #525252;
    font-size: 16px;
    line-height: 70px;
    font-weight: bold;
}
.choose li em {
    display: none;
    position: absolute;
    left: 0;
    bottom: 0;
    z-index: 2;
    width: 100%;
    height: 0.1563vw;
    background-color: #0075cf;
}
.choose ul li:nth-child(2) em {
    display: block;
}
.choose li:hover em {
    display: block;
}

@media screen and (max-width: 1400px) {
    .abtBanner {
        height: 550px;
    }
    .abtBanner img {
        height: 100%;
    }
    .abtBanner .choose {
        left: 0;
        width: 100%;
        margin-left: 0;
    }
}
@media screen and (max-width: 1120px) {
    .abtBanner .layer .title {
        line-height: 1.5em;
    }
    .abtBanner .layer .subtit {
        height: 45px;
    }
    .abtBanner .layer .subtit::after {
        width: 26px;
        height: 2px;
        margin-left: -13px;
    }
}
@media screen and (max-width: 991px) {
    .abtBanner {
        height: 450px;
    }
}
@media screen and (max-width: 767px) {
    .abtBanner {
        height: 400px;
    }
    .abtBanner .choose::after {
        height: 1px;
    }
    .abtBanner .choose {
        height: auto;
    }
    .choose li {
        margin-right: 21px;
    }
    .choose li a {
        font-size: 14px;
        line-height: 45px;
    }
    .choose li em {
        height: 1px;
    }
}
@media screen and (max-width: 425px) {
    .abtBanner .layer .title {
        font-size: 8.47vw;
    }
    .abtBanner .layer .subtit {
        font-size: 5.1764vw;
    }
}




/* content */
.about {
    width: 1400px;
    margin: 0 auto 98px;
}
/* list */
.about .list {
    display: flex;
    align-items: center;
    background-color: #fff;
    margin-top: 40px;
}
.about .list .imgbox {
    float: left;
    width: 50%;
    height: 100%;
    overflow: hidden;
}
.about .list .imgbox img:hover {
    transform: scale(1.1);
}
.about .list .imgbox img {
    display: block;
    width: 100%;
    min-height: 100%;
    transition: all 0.6s;
}
.about .list .zibox {
    float: left;
    width: calc(50% - 60px);
    padding: 0 20px 0 40px;
}
.about .list .tit {
    color: #148FD2;
    font-size: 24px;
    font-weight: bold;
    line-height: 1.5em;
}
.about .list .subtit {
    color: #666;
    font-size: 22px;
    line-height: 1.5em;
}
.about .list .line {
    width: 40px;
    height: 2px;
    background-color: #148FD2;
    margin: 15px 0 20px;
}
.about .list .cont p {
    color: #595959;
    font-size: 15px;
}
.about .list .cont p em,
.about .list .cont p span {
    display: inline-block;
    vertical-align: top;
}
.about .list .cont p span {
    width: calc(100% - 105px);
    margin-left: 5px;
}

/* list1 */
.about .list1 {
    height: 508px;
}
.about .list1 .cont p em,
.about .list1 .cont p span {
    display: inline-block;
    vertical-align: top;
}
.about .list1 .cont p span {
    width: calc(100% - 105px);
    margin-left: 5px;
}

/* list2 */
.about .list2 {
    height: 339px;
}
.about .list2 .zibox {
    text-align: right;
}
.about .list2 .zibox {
    padding: 0 40px 0 20px;
}
.about .list .line {
    display: inline-block;
}

/* list3 */
.about .list3 {
    height: 427px;
}

@media screen and (max-width: 1480px) {
    .about {
        width: 94%;
    }
}
@media screen and (max-width: 991px) {
    .about .list {
        height: auto;
    }
    .about .list .imgbox img:hover {
        transform: none;
    }
}
@media screen and (max-width: 767px) {
    .about .list {
        display: block;
    }
    .about .list .imgbox,
    .about .list .zibox {
        float: none;
        width: 100%;
    }
    .about .list .zibox {
        box-sizing: border-box;
        text-align: left;
        padding: 20px;
    }
}