.search-box{
    background: url('/static/image/web/help/banner.png?v0.1') 0 0 no-repeat;
    background-size: 100% 100%;
    color: #fff;
    display: flex;
    justify-content: center;
    height: 330px;
    align-items: center;
    font-size: 36px;
}
.search-box .title{
    margin-right: 40px;
}
.search-box .input-box{
    display: flex;
    font-size: 15px;
    position: relative;
    margin-bottom: 0;
}
.search-box .input-box input{
    width: 722px;
    height: 44px;
    float: left;
    padding-left: 20px;
    outline: none;
    color: #000;
    border: none;
}
.search-box .input-box button{
    width: 90px;
    height: 44px;
    line-height: 44px;
    text-align: center;
    background: #014FBB;
    color: #fff;
    outline: none;
    border: none;
    cursor: pointer;
    box-sizing: unset;
    padding: 0;
}
.search-box .input-box .keyword-box{
    position: absolute;
    bottom: -35px;
    font-size: 12px;
}
.search-box .input-box .keyword-box a{
    color: #fff;
    text-decoration: none;
    font-size: 12px;
    margin-right: 10px;
}

.nav-tab-warp{
    padding-top: 10px;
    display: flex;
    line-height: 50px;
    width: 340px;
}
.nav-tab-warp a{
    text-decoration: none;
    color: #000;
    flex: 1;
    border-bottom: 2px solid #fff;
    text-align: center;
    font-size: 15px;
}
.nav-tab-warp a.selected{
    color: #1883FF;
    border-bottom: 2px solid #1883FF;
}