.mod-tab {
    height: 54px;
    margin-top: 47px;
}

.mod-wrap {
    position: relative;
    width: 1200px;
    margin: 0 auto;
}

#modTab {
    background: #f5f5f6;
    top: 0;
    left: 0;
}

.mod-tab .panel-tab {
    margin: 0 auto;
    height: 54px;
    font-size: 16px;
    color: #555;
    position: relative;
}

.mod-tab .panel-tab .panel-tab-ul {
    font-family: PingFangSC-Semibold;
    position: relative;
    z-index: 10;
    width: 800px;
    white-space: nowrap;
    overflow: hidden;
}

.mod-tab .panel-tab .panel-tab-ul li {
    display: inline-block;
    height: 100%;
    line-height: 54px;
    visibility: middle;
    text-align: center;
    width: 97px;
    position: relative;
    transition: color .3s linear;
}
.mod-tab .panel-tab .panel-tab-ul li a {
    color: #101d37;
    text-decoration: none;
    display: inline-block;
    height: 50px;
    box-sizing: border-box;
}
.mod-tab .panel-tab .on a {
    color: #3072f6;
    border-bottom: 2px solid #3072f6;
}

.mod-tab .panel-tab .panel-bg {
    position: absolute;
    width: 97px;
    height: 100%;
    top: 0;
    left: 0;
    z-index: 1;
    transition: left .3s linear;
}