body {
    margin: 0;
}
.d_f{
    display: flex;
}
.ai_c{
    align-items: center;
}
.d_ib{
    display: inline-block;
}
.p_r{
    position: relative;
}
.p_a{
    position: absolute;
}
.f_l{
    float: left;
}
.bs_bb{
    box-sizing: border-box;
}
.w{
    width: 100%;
}
.h{
    height: 100%;
}
.mt_10{
    margin-top: 10px;
}
.mt_15{
    margin-top: 15px;
}
.mt_20{
    margin-top: 20px;
}
.mt_40{
    margin-top: 40px;
}
.mt_50{
    margin-top: 50px;
}
.mb_20{
    margin-bottom: 20px;
}
.m_0_a{
    margin: 0 auto;
}
.va_b{
    vertical-align: bottom;
}
.ta_c{
    text-align:center;
}
.bgc_f{
    background-color: #fff;
}
.c_f{
    color: #fff;
}
.c_3{
    color: #333;
}
 .c_63{
    color: #636363;
 }
.c_3381e5{
    color: #3381e5;
}
.c_22a7f0{
    color: #22a7f0;
}
.fs_0{
    font-size: 0;
}
.fs_12{
    font-size:12px;
}
.fs_14{
    font-size:14px;
}
.fs_16{
    font-size:16px;
}
.fs_18{
    font-size: 18px;
}
.fs_30{
    font-size: 30px;
}
.c_p{
    cursor: pointer;
}

.submit_btn{
    width: 308px;
    height: 44px;
    border: none;
    background-color: #3381e5;
    color: #fff;
    font-size: 18px;
    cursor: pointer;
}