.pro-box {
    padding: 90px 0 120px;
}

.top-box {
    text-align: center;
    margin-bottom: 70px;
}

.top-box .title {
    font-size: 34px;
    color: #646464;
    margin-bottom: 30px;
}

.top-box .input-box {
    margin:0 auto;
    width: 650px;
    height: 65px;
    border: 1px solid #c9caca;
    border-radius: 4px;
    font-size: 20px;
    /*background: url(/assets/img/ytx/product/icon-search.png) no-repeat 20px center / 30px auto;*/
}

.top-box input {
    width: 650px;
    height: 63px;
    border: 0;
    border-radius: 4px;
    font-size: 20px;
    box-sizing: border-box;
    padding-left: 20px;
    /*background: url(/assets/img/ytx/product/icon-search.png) no-repeat 20px center / 30px auto;*/
}

.top-box .search-btn{
    width:120px;
    height:65px;
    position: absolute;
    top:0;
    right:0;
    cursor: pointer;
    background: #5684c5 url(/assets/img/ytx/product/icon-search-2.png) no-repeat center / 30px auto;
}

.pro-nav {
    width: 100%;
    border-bottom: 1px solid #5684c5;
    display: flex;
    justify-content: center;
}

.pn-item {
    width: 200px;
    color: #9fa0a0;
    text-align: center;
    height: 56px;
    float: left;
    line-height: 56px;
    font-size: 20px;
    margin-bottom: -3px;
    cursor: pointer;
}

.pn-item.active {
    color: #646464;
    border-bottom: 6px solid #5684c5;
}

.pb-types {
    width: 100%;
    float: left;
    margin: 45px 0 35px;
}

.pb-types li {
    width: 25%;
    float: left;
    cursor: pointer;
    text-align: center;
    font-size: 20px;
    color: #646464;
    margin-bottom: 40px;
    box-sizing: border-box;
    border-right: 1px solid #c9caca;
}

.pb-types li:last-child,
.pb-types li:nth-child(4n) {
    border-right: 0;
}

.pb-types li.active {
    color: #fd9b27;
}

.pb-item {
    color: #646464;
    font-size: 18px;
}

.pb-item .title,
.pb-item .type,
.pb-item .desc {
    padding: 25px 0;
    border-top: 2px solid #e6e7e8;
    float: left;
}

.pb-item .title {
    font-weight: bold;
    width: 27%;
    box-sizing: border-box;
    margin-right: 1.5%;
}

.pb-item .type {
    width: 20%;
    margin-right: 1.5%;
}

.pb-item .desc {
    width: 50%;
}

.product-box {
    /*display: none;*/
}

.product-box.active {
    display: block;
}

.pb-brands {
    margin: 45px 0 35px;
}

.pb-brands li {
    width: 20%;
    box-sizing: border-box;
    border-right: 1px solid #c9c9c9;
    float: left;
    height: 45px;
    margin-bottom: 10px;
}

.pb-brands li:last-child,
.pb-brands li:nth-child(5n) {
    border-right: 0;
}

.pb-brands li .img-box {
    width: 180px;
    border: 1px solid #c9c9c9;
    height: 45px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
}

.pb-brands li .img-box img {
    max-width: 100%;
    max-height: 100%;
}

.pb-types ul,
.pb-brands ul {
    height: 165px;
    overflow: hidden;
    margin-bottom: 20px;
}

.pb-types ul{
    height:180px;
}

.pb-types ul.active,
.pb-brands ul.active {
    overflow: visible;
    height: auto;
    transition: all 2s;
}

.open,.close{
    display: none;
    cursor: pointer;
}

@media screen and (max-width: 1000px) {
    .pro-box {
        padding: 10px 0 40px;
    }
    .top-box .title {
        font-size: 18px;
        color: #646464;
        margin-bottom: 20px;
        font-weight: 500;
    }
    .top-box .input-box {
        margin: 0 auto;
        width: 100%;
        height: 40px;
        border: 1px solid #c9caca;
        border-radius: 4px;
        font-size: 20px;
        /* background: url(/assets/img/ytx/product/icon-search.png) no-repeat 20px center / 30px auto; */
    }
    .top-box input {
        width: 100%;
        height: 38px;
        border: 0;
        border-radius: 4px;
        font-size: 14px;
        box-sizing: border-box;
        padding-left: 10px;
        /* background: url(/assets/img/ytx/product/icon-search.png) no-repeat 20px center / 30px auto; */
    }
    .top-box .search-btn {
        width: 80px;
        height: 40px;
        position: absolute;
        top: 0;
        right: 0;
        cursor: pointer;
        background: #5684c5 url(/assets/img/ytx/product/icon-search-2.png) no-repeat center / 20px auto;
    }
    .top-box {
        text-align: center;
        margin-bottom: 20px;
    }
    .pn-item.active {
        color: #646464;
        border-bottom: 5px solid #5684c5;
        font-weight: 500;
    }
    .pn-item {
        width: 50%;
        color: #9fa0a0;
        text-align: center;
        height: 40px;
        float: left;
        line-height: 40px;
        font-size: 16px;
        margin-bottom: -3px;
        cursor: pointer;
    }
    .pb-types li {
        width: 50%;
        float: left;
        cursor: pointer;
        text-align: center;
        font-size: 15px;
        color: #646464;
        margin-bottom: 15px;
        box-sizing: border-box;
        border-right: 1px solid #c9caca;
    }

    .pb-types li:nth-child(2n){
        border-right:0;
    }

    .pb-types {
        width: 100%;
        float: left;
        margin: 30px 0 10px;
    }

    .pb-types ul {
        height: 200px;
    }
    .pb-item .type, .pb-item .desc {
        padding: 10px 0;
        /* border-top: 2px solid #e6e7e8; */
        border:0;
        float: left;
        width:100%;
        margin:0;
        text-indent: 10px;
    }
    .pb-item .desc{
        background: #efefef;
        text-indent: 0;
        padding: 10px;
        box-sizing: border-box;
        border-radius: 3px;
    }
    .pb-item .title{
        padding: 10px 0;
         border-top: 1px solid #e6e7e8;
         border-bottom: 1px solid #e6e7e8;
        float: left;
        width:100%;
        margin:0;
        text-indent: 10px;
    }
    .pb-item {
        color: #646464;
        font-size: 15px;
        margin-bottom: 15px

    }
    .pb-brands li .img-box {
        width: 100%;
        border: 1px solid #c9c9c9;
        height: 45px;
        margin: 0 auto;
        display: flex;
        align-items: center;
        justify-content: center;
        cursor: pointer;
        /* margin-right: 3.3%; */
    }
    .pb-brands li .img-box img{
        width:90%;
    }
    .pb-brands ul {
        height: 330px;
        overflow: hidden;
        margin-bottom: 10px;
    }
    .pb-brands li {
        width: 30%;
        box-sizing: border-box;
        border-right: 0;
        float: left;
        height: 45px;
        margin-bottom: 10px;
        margin-right: 4.7%;
    }
    .pb-brands li:nth-child(3n){
        margin-right:0;
    }
    .pb-brands {
        margin: 30px 0 10px;
    }
}