.secret{
    margin-top: 40px;
}
.secret .common-btn{
    width: 100%;
    height: 40px;
    border: solid 1px rgba(255, 255, 255, 0.5);
}
.secret .common-btn:after{
   
}

.secret .common-btn span{
    display: block;
    width: 100%;
    text-align: center;
    position: relative;
}

.secret .common-btn span:before,.secret .common-btn span:after{
    content: "";
    display: block;
    position: absolute;
    top:50%;
    right:12px;
    transform: translateY(-50%);
    width:16px;
    height:2px;
    background:var(--accentcolor);
    transition-duration: 0.2s;
}
.secret .common-btn:not(.open) span:after{
    transform: translateY(-50%) rotate(90deg);
}

.secret .common-btn.hover span:before,.secret .common-btn.hover span:after{
    background:var(--maincolor);
}

.secret-detail{
    font-size: 12px;
    line-height: 2;
    padding-top: 20px;
    display: none;
}
.secret-detail strong{
    font-size:14px;
}