html{
    font-size: 100%;
    font-family: 'Times New Roman','Meiryo',sans-serif;
}
body {
    margin: 0;
}
@media (max-width: 767px) {
    body{
        overflow-y: hidden;
    }
}
.header{
    color: #fff;
    background-color: #373a3e;
    font-size: 1.5rem;
    display: flex;
    justify-content: space-between;
    border: solid;
    border-color: #373a3e;
}
.header a{
    color: white;
    text-decoration: none;
}
.main-container{
    display: flex;
    justify-content: center;
    align-items: center;
}
@media (min-width: 767px) {
    .main-container{
        height: calc(100vh - 42px);
    }
}
.priceTable{
    border-collapse: collapse;
}
.priceTable td{
    width: 200px;
    border: solid;
    border-width: 1px;
    border-color: lightgray;
    height: 3rem;/*min-heightの変わり*/
}
.textAlignCenterTdNotFirst td:not(:first-of-type){
    text-align: center;        
}
.priceTable tr:not(:nth-of-type(2)) td:first-of-type{
    background-color: rgb(247,247,247);
    font-weight: bold;
    padding-left: 0.5rem;
}
.trSupport td:not(:first-of-type){
    font-size: 0.8rem;
}
.simpleSimIcon{
    color: #FFFFFF;
    background-color: #0d6efd;
    width: 60px;
    height: 60px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}
.tableTitle{
    display: flex;
}
.priceTitle{          
    color: white;
    font-weight: bold;
    padding: 0.5rem;
}
.titleFree{
    background-color: rgb(243,181,0);
}
.titleStandard{
    background-color: rgb(76,138,234);
}
.titlePremium{
    background-color: rgb(44,200,57);
}
.price{
    font-size: 1.6rem;
    font-weight: bold;
}
.priceInterval{
    /* color: darkgray; */
    font-size: 0.9rem; 
}
.linkBlue{
    text-decoration: none;
    color: blue;
    font-weight: bold;
    font-size: 1.2rem;
    margin-right: 1rem;
}
.back-button-container{
    position: relative;
}
.back-button{
    background-color: transparent;
    border-color: transparent;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    --iconScale: 1.5;
}
.back-button:hover{
    background-color: rgb(231 231 232);
    border-color: rgb(231 231 232);
}
.back-button:hover + .popover-content {
    display: block;
    animation: fade-in 0.5s;
}
.popover-content {
    display: none;
    position: absolute;
    top: 100%;
    left: 20px;
    z-index: 1;
    background-color: #000000a6;
    border: 1px solid #000000a6;
    padding: 4px;
    color: white;
    font-size: 0.75rem;
}
.under-content-container{
    display: flex;
    justify-content: space-between;
}
.icon-arrow-left {
    box-sizing: border-box;
    position: relative;
    display: block;
    transform: scale(var(--iconScale,1));
    width: 22px;
    height: 22px
}
.icon-arrow-left::after,
.icon-arrow-left::before {
    content: "";
    display: block;
    box-sizing: border-box;
    position: absolute;
    left: 3px
}
.icon-arrow-left::after {
    width: 8px;
    height: 8px;
    border-bottom: 2px solid;
    border-left: 2px solid;
    transform: rotate(45deg);
    bottom: 7px
}
.icon-arrow-left::before {
    width: 16px;
    height: 2px;
    bottom: 10px;
    background: currentColor
}
@keyframes fade-in{
    0%{
        opacity: 0;
    }
    99%{
        opacity: 0;
    }
    100%{
        opacity: 1;
    }
}
.iconScale1_5{
    --iconScale: 1.5;
}
.marginTop3rem{
    margin-top: 3rem;
}
.marginLeft0_5rem{
    margin-left: 0.5rem;
}
.marginLeft1rem{
    margin-left: 1rem;
}
.fontSize0_8rem{
    font-size: 0.8rem;
}
.displayFlex{
    display: flex;
}
.flexDirectionColumn{
    flex-direction: column;
}
.alignItemsEnd{
    align-items: end;
}
.backgroundColorDADADA{
    background-color: #DADADA;
}
.backgroundColorWhite{
    background-color: white;
}
.colorBlack{
    color: black;
}
.padding1rem{
    padding: 1rem;
}
.textAlignCenter{
    text-align: center;
}
.displayFlex{
    display: flex;
}
.alignItemsCenter{
    align-items: center;
}
html:lang(en) {
    font-size: 18px;
}