.banner {
    height: 460px;
    background-image: url(../images3/about_banner.png);
    background-size: auto 100%;
    background-repeat: no-repeat;
    background-position: center;
}

.banner .wrap1240 {
    padding-top: 210px;
}

.banner .title {
    font-size: 32px;
    font-weight: bold;
    color: #ffffff;
}

.banner .introduct {
    font-size: 14px;
    color: #ffffff;
    margin-top: 25px;
}

.transition {
    -webkit-transition: all 0.3s linear 0s;
    -moz-transition: all 0.3s linear 0s;
    -ms-transition: all 0.3s linear 0s;
    -o-transition: all 0.3s linear 0s;
    transition: all 0.3s linear 0s;
}

.secondary-bar {
    position: relative;
    bottom: 70px;
    height: 70px;
}

.secondary-bar ul {
    font-size: 0;
    background-color: #ffffff;
    border-radius: 5px;
    box-shadow: 0px 3px 10px 0px rgba(0, 0, 0, 0.15);
    height: 70px;
    overflow-x: hidden;
    overflow-y: hidden;
    white-space: nowrap;
}

.secondary-bar ul li {
    display: inline-block;
    font-size: 16px;
    text-align: center;
    box-sizing: border-box;
    height: 70px;
    line-height: 70px;
    border-right: 1px solid #f4f4f4;
    overflow: hidden;
    cursor: pointer;
    -webkit-transition: all 0.3s linear 0s;
    -moz-transition: all 0.3s linear 0s;
    -ms-transition: all 0.3s linear 0s;
    -o-transition: all 0.3s linear 0s;
    transition: all 0.3s linear 0s;
}

.secondary-bar ul li a {
    color: #666666;
    display: block;
    transform: translate3d(0, 0, 0);
    backface-visibility: hidden;
}

.secondary-bar ul li:hover, .secondary-bar ul li.active {
    /*transform: scale(1.1);*/
    border-right: 0;
    background-color: #3487f8;
    border-radius: 5px;
    background-image: linear-gradient(to right, #3488f9, #1a6bee);
}

.secondary-bar ul li:hover a, .secondary-bar ul li.active a {
    color: #ffffff;
}

.secondary-bar ul li:last-child {
    border-right: 0;
}

.secondary-bar ul li:first-child:nth-last-child(1) {
    width: 100%;
}

.secondary-bar ul li:first-child:nth-last-child(2),
.secondary-bar ul li:first-child:nth-last-child(2) ~ li {
    width: 50%;
}

.secondary-bar ul li:first-child:nth-last-child(3),
.secondary-bar ul li:first-child:nth-last-child(3) ~ li {
    width: 33.3333%;

}

.secondary-bar ul li:first-child:nth-last-child(4),
.secondary-bar ul li:first-child:nth-last-child(4) ~ li {
    width: 25%;
}

.secondary-bar ul li:first-child:nth-last-child(5),
.secondary-bar ul li:first-child:nth-last-child(5) ~ li {
    width: 20%;
}

.secondary-bar ul li:first-child:nth-last-child(6),
.secondary-bar ul li:first-child:nth-last-child(6) ~ li {
    width: 16.6666%;
}

.main-container {
    padding: 20px 0;
}

.main-container .secondary-title {
    font-size: 40px;
}

.main-container .secondary-title::after {
    content: '';
    display: block;
    width: 22px;
    height: 2px;
    background: #222222;
    margin-top: 36px;
}

.header .nav .right a:hover {
    color: #1a6bee;
    border-bottom: 2px solid #1a6bee;
}
@media screen and (max-width: 749px)  {
    .secondary-bar ul li {
        line-height: unset;
        font-size: 14px;
        white-space: pre-wrap;
        display: inline-flex;
        align-items: center;
    }
    .main-container .secondary-title{
        font-size: 25px;
    }
    .banner{
        height: 200px;
    }
    .banner .wrap1240{
        padding-top: 40px;
    }
    .secondary-bar ul li a{
        display: flex;
        width: 100%;
        height: 100%;
        justify-content: center;
        align-items: center;
    }
}