.header {

}

.header .navigation {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: start;
    font-size: 32rpx;
    font-weight: 500;
    color: #333333;
    padding-left: 20rpx;
    overflow: hidden;
    z-index: 999999;
}

.header .navigation .icon {
    width: 34rpx;
    height: 34rpx;
    margin-right: 17rpx;
}
.header .navigation .back {
    width: 48rpx;
    height: 48rpx;
}
.header .navigation .back-nav {
    width: 100%;
}
.header .navigation .back-nav .con {
    display: flex;
    align-items: center;
}

.header .navigation .back-nav .con view {
    height: 100%;
}
.header .navigation .back-nav .con view.text {
    text-align: center;
    width: 100%;
}
.header .navigation .con {
    position: relative;
    z-index: 2;
}
.header .navigation .nav-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: unset;
}
.header-bg {
    width: 100%;
    overflow: hidden;
    position: absolute;
    top: 0;
    left: 0;
    z-index: -1;
}
.index-nav {
    display: flex;
    align-items: center;
}