.header {
    position: fixed;
    height: .9rem;
    width: 100%;
    line-height: 0.9rem;
    top: 0;
    left: 0;
    background: #fff;
    padding-left: 0.57rem;
    padding-right: 0.63rem;
    box-sizing: border-box;
    border-bottom: 0.01rem solid #e5e5e5;
}

.header li {
    float: left;
    width: 33%;
    color: #999;
    font-size: 0.3rem;
    text-align: center;
    position: relative;
}

.header .active {
    color: #333;

}

.header .active::after {
    background: #d0302c;
    width: 0.24rem;
    height: 0.05rem;
    content: "";
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
}

.content {
    margin-top: 0.9rem;
}

.content li {
    font-size: 0.32rem;
    color: #333333;
    height: 1.2rem;
    line-height: 1.2rem;
    background-color: #ffffff;
    padding-left: 0.61rem;
    border-bottom: 0.01rem solid #e5e5e5;
}