.activity .activity_nav {
    padding-left: 20px;
    border-bottom: 1px solid #e7e7e7;
    height: 53px
}

.activity .activity_nav li {
    float: left;
    width: 230px;
    height: 50px;
    margin-bottom: -1px
}

.activity .activity_nav a {
    position: relative;
    width: auto;
    line-height: 50px;
    height: 50px;
    color: #333;
    padding-left: 15px;
    display: inline-block;
    box-sizing: initial
}

.activity .activity_nav a:hover {
    color: #EA4120
}

.activity .activity_nav .active {
    color: #EA4120;
    border-bottom: 3px solid #EA4120
}

.activity .activity_nav .active .dot {
    background: #EA4120
}

.activity .activity_nav .dot {
    position: absolute;
    left: 0;
    top: 50%;
    margin-top: -2px
}

.activity .drive_data_wrap {
    text-align: justify;
    color: #333;
    font-size: 16px;
    line-height: 30px
}

.activity .drive_data_item {
    display: none
}

.activity .intro {
    padding-top: 40px;
    padding-bottom: 80px;
    border-bottom: 1px solid #e7e7e7
}

.activity .sketch {
    padding-top: 50px;
    margin-left: 18px;
    margin-right: 18px
}

.activity .imgbox {
    width: 202px;
    height: 289px;
    float: left;
    margin-left: 18px
}

.activity .img {
    display: block;
    width: 100%;
    box-shadow: 0 5px 10px rgba(0, 0, 0, .3)
}

.activity .text {
    padding-right: 20px
}

.activity span {
    display: inline-block
}

.activity .orange {
    color: #fc9d31
}

.activity .method {
    padding-top: 10px;
    padding-bottom: 10px
}

.activity .tit {
    position: relative;
    padding-left: 10px
}

.activity .dot {
    position: absolute;
    left: 0;
    top: 50%;
    margin-top: -2px
}

.activity .btn_exchange {
    width: 98px;
    background: #EA4120;
    color: #fff
}

.activity .btn_more {
    width: 157px;
    background: #fc9d31;
    margin-top: 50px;
    margin-left: auto;
    margin-right: auto
}

@media (max-width:767px) {
    .activity .activity_nav {
        padding-left: .2rem;
        padding-right: .2rem;
        padding-bottom: .7rem;
        height: auto
    }
    .activity .activity_nav li {
        width: 50%;
        height: .5rem;
        margin-bottom: .1rem
    }
    .activity .activity_nav a {
        height: .5rem;
        line-height: .5rem;
        font-size: .26rem;
        padding-left: .15rem
    }
    .activity .activity_nav .active {
        border: none
    }
    .activity .activity_bd {
        line-height: .48rem;
        font-size: .26rem
    }
    .activity .anchor {
        padding-top: .4rem;
        padding-bottom: .6rem
    }
    .activity .text {
        padding-right: 0
    }
    .activity .imgbox {
        margin-left: 0;
        width: 100%;
        height: auto;
        padding-bottom: .3rem
    }
    .activity .method {
        padding-top: .3rem;
        padding-bottom: .3rem
    }
    .activity .intro {
        padding-top: .4rem;
        padding-bottom: .6rem;
        padding-left: .2rem;
        padding-right: .2rem
    }
    .activity .sketch {
        padding-top: .5rem;
        padding-left: .2rem;
        padding-right: .2rem;
        margin-left: 0;
        margin-right: 0
    }
    .activity .img {
        box-shadow: 0 .05rem .1rem rgba(0, 0, 0, .3)
    }
    .activity .btn_exchange {
        width: 1.58rem
    }
    .activity .btn_more {
        margin-top: .7rem;
        width: 2.6rem
    }
}