.tit-nav-li:nth-child(2) {
    background-color: #638df9;
}

.tit-nav-li:nth-child(2) a {
    color: white;
}

.active {
    background: #0a6aa1 !important;
    color: #ffffff;
}

.ban-tit {
    width: 100%;
    height: 300px;
    background: url("../upload/prod.png") no-repeat;
    background-size: 100%;
    overflow: hidden;
    margin-bottom: 50px;
}

.bg-tit {
    width: 300px;
    height: 100px;
    text-align: center;
    margin: 0 auto;
    margin-top: 70px;
}

.bg-tit h2 {
    width: 300px;
    height: 50px;
    line-height: 50px;
    font-size: 36px;
    font-weight: 300;
    color: white;
    letter-spacing: 5px;
}

.bg-tit h3 {
    width: 300px;
    height: 35px;
    line-height: 35px;
    font-size: 18px;
    font-weight: 300;
    color: white;
    letter-spacing: 2px;
}

.pro-main {
    width: 95%;
    margin: 0 auto;
}

.pro-list {
    float: left;
    width: 20%;
    height: auto;
}

.pro-list .list-item {
    width: 95%;
    height: auto;
    text-align: center;
    line-height: 30px;
    font-size: 24px;
    margin: 0 auto;
    color: white;
    background-color: #57b1db;
    cursor: pointer;
    border-bottom: 2px solid white;
    white-space: normal;
    padding: 5px 0;
}

.list-item span {
    font-size: 20px;
    margin-left: 5px;
}

.pro-list li ul {
    display: none;
    width: 250px;
    margin: 0 auto;
    background-color: #efefef;
}

.pro-list li ul li {
    width: 250px;
    height: 35px;
    text-align: center;
    line-height: 35px;
    font-size: 18px;
    cursor: pointer;
    border-bottom: 1px solid white;
}

.pro-show {
    float: left;
    margin-left: 10px;
    width: 75%;
}

.show-item {
    display: none;
    /*width: 80%;*/
}

.show-item-pic {
    float: left;
    width: 300px;
    height: 350px;
    margin-left: 30px;
    margin-bottom: 20px;
}

.pic {
    position: relative;
    width: 300px;
    height: 300px;
    overflow: hidden;
}

.pic img {
    position: absolute;
    left: 0;
    bottom: 0;
    width: 100%;
    height: 100%;
}

.show-item-pic span {
    display: block;
    width: 250px;
    height: 40px;
    text-align: center;
    line-height: 40px;
    font-size: 18px;
    margin: 0 auto;
    overflow: hidden;
    text-overflow: ellipsis;
}

.serv {
    width: 100%;
    height: 400px;
    background-color: #efefef;
    padding-top: 50px;
    margin-bottom: 20px;
}

.serv-tit {
    width: 200px;
    height: 50px;
    font-size: 26px;
    text-align: center;
    letter-spacing: 3px;
    margin: 0 auto;
    margin-bottom: 30px;
}

.serv ul {
    /*width: 80%;*/
    height: 300px;
    margin: 0 auto;
    text-align: center;
}

.serv ul li {
    width: 15%;
    display: inline-block;
}

.serv-list {
    width: 200px;
    border-radius: 100px;
    margin-left: 20px;
    margin: auto;
}

.serv ul li span {
    display: inline-block;
    width: 150px;
    height: 35px;
    text-align: center;
    line-height: 35px;
    font-size: 16px;
    color: #333;
    margin-top: 30px;
}

.user {
    width: 100%;
    max-width: 1660px;
    margin: 0 auto;
    padding-top: 20px;
    margin-bottom: 20px;
}

.user-tit {
    width: 200px;
    height: 50px;
    font-size: 26px;
    text-align: center;
    letter-spacing: 3px;
    margin: 0 auto;
    margin-bottom: 30px;
}

.user-list {
    width: 200px;
    height: 200px;
    border-radius: 50px;
    background-color: white;
    margin-left: 15px;
    overflow: hidden;
    margin: auto;
}

.user-list img {
    width: 100%;
    height: 100%;
}

.user ul {
    /*width: 80%;*/
    height: 300px;
    margin: 0 auto;
    text-align: center;
}

.user ul li {
    width: 15%;
    display: inline-block;
}

.user ul li span {
    display: inline-block;
    width: 150px;
    height: 35px;
    text-align: center;
    line-height: 35px;
    font-size: 16px;
    color: #333;
    margin-top: 30px;
}