.tabs-nav {
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 39px;
    padding-left: 5px;
    flex-wrap: wrap;
    width: 840px;
    margin: 0 auto; 
}

.tabs-nav li {
    line-height: 1.5em;
    letter-spacing: 0;
    text-align: center;
    margin-bottom: 20px;  
    min-width: 200px;
}

@media screen and (max-width: 750px) {
    .tabs-nav {
        width: 100%;    
    }
    .tabs-nav li {
        margin-bottom: 10px;    
    }
}

/*Rマーク化*/
.icon-r {
  width: 16px;
  height: 16px;
  color: #333;
  margin: 0 5px;
}
.icon-r circle,
.icon-r text {
  stroke: currentColor;
  fill: currentColor;
}
.r-mark {
    font-size: 50%;
    display: inline-block;
    transform: translateY(-29%);
}

/*トップページのレイアウト崩れの調整*/
@media screen and (max-width: 750px) {
    .topPageSec.sec04{
        margin-top: 0px;
    }
}