h4,
h5 {
    margin: 0;
}

.slide-bar {
    width: 50px;
    position: fixed;
    left: 20px;
    top: 400px;
    color: #fff;
    /* display: none; */
    /* text-align: center; */
}

.slide-bar .top .about {
    margin-bottom: 30px;
}

.slide-bar .top .about li {
    font-size: 14px;
    padding: 5px 20px;
    margin-bottom: 10px;
    background-color: rgba(255, 255, 255, 0.1);
    box-shadow: 0 2px 12px 0 rgba(255, 255, 255, 0.1);
    transition: all .3s;
}

.slide-bar .top .about li a{
    color: #fff;
}

.slide-bar .top .about li:hover a{
    /* border-radius: 10px; */
    transform: translateX(-50%);
    color: #dd4142;

}

.slide-bar .top .about li:first-child:hover {
    transform: scale(1);
}

.slide-bar .top .contact {
    border-radius: 10px;
    /* border: 1px solid #fff; */
}

.slide-bar .top .contact li {
    /* border-bottom:1px solid #fff ; */
    padding: 10px 20px;
    margin-bottom: 10px;
    background-color: rgba(255, 255, 255, 0.1);
    box-shadow: 0 2px 12px 0 rgba(255, 255, 255, 0.1);
}

.slide-bar .top .contact li:last-child {
    border: none;
}

.slide-bar .top .contact li:nth-child(2) {
    display: flex;
    justify-content: space-around;
}

.slide-bar .top .contact li:nth-child(2) img {
    width: 90px;
    height: 105px;
}

.slide-bar .top .contact li:nth-child(3) {
    display: flex;
    justify-content: space-around;
    align-items: center;
}

.slide-bar .top .contact li:nth-child(3) .tell p {
    font-size: 22px;
}

.about-main {
    /* padding-top: 110px; */
    /* background: none; */
}

.about-main h3{
    padding: 10px 20px;
    background-color: rgba(255, 255, 255, 0.1);
    box-shadow: 0 2px 12px 0 rgba(255, 255, 255, 0.1);
}

.about-main .content-box {
    padding-top: 40px;
    padding-left: 60px;
    color: #fff;
}

@media (max-width:768px) {
    .about-main .content-box {
        padding-left: 0px;
    }
    .slide-bar{
        display: none;
    }
}

.about-main .content-box div {
    margin: 25px auto;
}

.about-main .content-box .text-block p {
    text-indent: 2em;
}

.about-main .content-box .map-block {
    width: 100%;
    height: 40vh;
}

.about-main .content-box .team-block {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
}

.about-main .content-box .team-block img {
    width: 48%;
    /* height: 300px; */
    background-color: white;
    margin-bottom: 20px;
}

.about-main .content-box .parter-block {
    /* display: flex;
    flex-wrap: wrap; */
    /* display: grid; */
    /* 每列占据父元素剩余空间的宽度，fr是grid布局专用单位 */
    /* grid-template-columns: 1fr 2fr 1fr 2fr 1fr; */
    /* 行间距和列间距 */
    /* gaps:15px 10px; */
    /* column-gap: 15px;
    row-gap: 10px;
    align-items: center; */
    column-count:4;
    column-gap:20px;
    row-gap: 10px;
    break-inside: avoid;
}

.about-main .content-box .parter-block img {
    /* margin:10px; */
    /* width: 20%; */
    /* float: left; */
    width: 255px;
    /* height: 80px; */
    margin-bottom: 15px;
    transition: all .3s;
}

.about-main .content-box .parter-block img:hover{
    transform: scale(1.05);
}

.about-main .content-box .contact-block div{
    /* padding: 10px; */
    margin: 0;
}

.about-main .content-box .contact-block ul{
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
}

.about-main .content-box .contact-block ul li{
    /* width: 255px; */
    flex: 1;
    min-width: 300px;
    padding: 10px;
    margin: 5px 10px 5px 0;
    background-color: rgba(255, 255, 255, 0.1);
    box-shadow: 0 2px 12px 0 rgba(255, 255, 255, 0.1);
}
.about-main .content-box .contact-block ul li h5{
    margin-bottom: 10px;
}
.about-main .content-box .contact-block ul li:first-child img{
    width: 90px;
    height: 105px;
}
.about-main .content-box .contact-block ul li:first-child img:first-child{
    margin-right: 10px;
}

.about-main .content-box .contact-block ul li:nth-child(2) .tell p {
    font-size: 16px;
}