.container{
    width: 100%;
    background: #F3F3F3;
    overflow: hidden;
}
.banner{
    width: 100%;
    height: 25.875rem;
    -webkit-user-select: text;
    -moz-user-select: text;
    -ms-user-select: text;
    user-select: text;
}

.banner .banner-item{
    width: 100%;
    height: 100%;
    background-image: url(../images/product/banner.png);
    background-position: top center;
    background-size: cover;
    background-repeat: no-repeat;
}

.banner img{
    display: block;
    width: 100%;
    height: 100%;
}

.nav-section{
    width: 100%;
    height: 4rem;
    background: rgba(5, 109, 220, 1);
    position: relative;
}

.background-mask{
    width: 50%;
    height: 4rem;
    position: absolute;
    top: 0;
    right: 0;
    background: #121A2D;
    z-index: 2;
}

.nav-section .crumb{
    width: 100%;
    height: 100%;
    padding: 0 1.75rem;
    background: #121A2D;
}

.nav-section .crumb h2{
    font-size: 1rem;
    line-height: 4rem;
    color: #F3F3F3;
    font-weight: 400;
}

.crumb h2 span, .crumb h2 a{
    color: rgba(255, 255, 255, .6);
}

.section-title{
    font-size: 1.5rem;
    line-height: 1.5rem;
    margin-bottom: 2.875rem;
}

.product-container{
    padding: 2.875rem 0;
}

.product-section{
    width: 100%;
    overflow: hidden;
}

.menu-bar{
    width: 23.125rem;
    float: left;
    padding-left: 1rem;
    position: relative;
}

.menu-bar::after{
    content: '';
    width: 1px;
    height: 100%;
    background: rgba(47, 79, 120, .1);
    top: 0;
    right: -1.875rem;
    position: absolute;
}

.main{
    width: calc(100% - 25rem);
    float: left;
    margin-left: 1.875rem;
    padding: .75rem 1.875rem;
    overflow: hidden;
    position: relative;
}

.menu-item .menu-title{
    height: 3rem;
    padding-left: .5rem;
    font-size: 1rem;
    line-height: 3rem;
    font-family: Source Han Sans CN;
    font-weight: 400;
    color: rgba(13, 19, 38, .7);
    position: relative;
    cursor: pointer;
}

.menu-item .menu-title::before{
    content: '';
    width: .375rem;
    height: .375rem;
    background: rgba(13, 19, 38, 1);
    border-radius: 50%;
    position: absolute;
    top: 50%;
    left: -.5rem;
    transform: translateY(-50%);
}

.menu-title .arrow{
    width: 1rem;
    height: 1rem;
    background: url(../images/common/arrow.png) no-repeat center;
    transition: all .3s;
    transform: rotate(180deg);
    position: absolute;
    top: 1rem;
    right: .5rem;
}

.menu-list{
    display: none;
}

.menu-item.active .arrow{
    transform: rotate(0);
}

.menu-item.active .menu-list{
    display: block;
}

.menu-list .menu-group{
   min-height: 2.5rem;
    padding-left: .5rem;
    font-size: .875rem;
    line-height: 1.5rem;
    color: rgba(13, 19, 38, .7);
    font-family: Source Han Sans CN;
    position: relative;
    transition: ease-in;
	padding-top:0.5rem;
	padding-bottom:0.5rem;
}

.menu-list .menu-group span{
    cursor: pointer;
}

.menu-list .menu-group:hover{
    color: rgba(13, 19, 38, 1);
}

.menu-list .menu-group.active{
    color: rgba(13, 19, 38, 1);
}

.menu-list .menu-group.active::after{
    content: '';
    width: .25rem;
    height: .625rem;
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    left: -.5rem;
    background: rgba(227, 83, 89, 1);
}

.main .title{
    height: 1.5rem;
    font-size: 1.5rem;
    line-height: 1.5rem;
    font-family: Source Han Sans CN;
    font-weight: 500;
    color: #0D1326;
}

.main .introduce{
    height: 1.25rem;
    font-size: 1rem;
    font-family: Source Han Sans CN;
    font-weight: 500;
    color: #0D1326;
    line-height: 1.25rem;
    margin: 2rem 0;
}

.introduce-section{
    overflow: hidden;
}

.introduce-section .introduce-item{
    display: flex;
    margin-top: .625rem;
    font-size: .875rem;
    font-family: Source Han Sans CN;
    font-weight: 400;
    color: rgba(13, 19, 38, .7);
    line-height: 1.25rem;
}

.introduce-item .label{
    width: 12.25rem;
}

.introduce-item .content{
    width: calc(100% - 12.25rem);
    word-break: keep-all;
}

.main img{
    display: block;
    max-width: 100%;
}

.main-container .container-section{
    width: 100%;
    overflow: auto;
    position: relative;
}


@media screen and (max-width: 1200px) {
    .nav-section{
        height: 5rem;
    }
    .nav-section .crumb{
        padding: 0 1rem;
    }
    .card-title{
        height: auto;
    }
    .nav-section .crumb h2{
        font-size: 1.33rem;
        line-height: 5rem;
    }
    .menu-bar{
        float: none;
        width: 100%;
        padding-left: 1.5rem;
        border-bottom: solid 1px rgba(47, 79, 120, .15);
    }
    .menu-bar::after{
        display: none;
    }
    .main{
        width: 100%;
        float: none;
        margin-left: 0;
        padding: 3rem 0;
    }
    .main img{
        display: block;
        width: 100%;
    }
    .main-container img{
        max-width: 100%;
        margin: .25rem auto;
    }
    .banner{
        height: 17.25rem;
    }
    .banner .banner-item {
        background-size: auto 100%;
        background-image: url('../images/product/banner_products.png');
    }
    .background-mask{
        height: 5rem;
    }
}