* {
    margin: 0;
    padding: 0;
}
.mainContents {
    width: 100%;
    margin: 0 auto;
    text-align: center;
}
.mainContents h1 {
    text-align: center;
    white-space: nowrap;
    width: 100%;
    font-size: clamp(1.8rem, calc(1.25vw + 1.5rem), 3.2rem);
}
.welcomeLogo {
    width: 100%;
    margin-top: 10vh;
}
#PictionLogo {
    height: auto;
    max-width: 70vw;
    min-width: 300px;
}
.welcomeText {
    margin-top: 30px;
}
.welcomeText p {
    margin: 0 10%;
}
.welcomeText span {
    display: inline-block;
}

/* signupLoginArea */
.signupLoginArea {
    display: flex;
    flex-direction: row;
    justify-content: center;
    margin-top: 5vh;
}
.signupLoginButton {
    display: block;
    width: 160px;
    height: 36px;
    padding: 5px 5px 5px 5px; /* 内側の時計回りの余白 padding: 5px; と同じになります。 */
    margin: 0 50px;
    text-align: center;
    color: #000000;
    line-height: 36px;
    text-decoration: none;
    background-color: rgb(255, 255, 255);
    border: 2px solid #46A0DC;
    border-radius: 5px;
    transition: .4s;
}
.signupLoginButton:hover {
    background-color: #46A0DC;
    color: #fff;
}
#supportedBrowser {
    position: absolute;
    right: 0;
    bottom: 0;
}
#supportedBrowser p {
    padding: 5px 20px;
    text-align: right;
}

@media (max-width: 570px) {
    .signupLoginArea {
        display: flex;
        flex-direction: column;
        align-items: center;
        margin-top: 5vh;
    }
    .userPageLink {
        margin-top: 30px;
    }
    .signupLoginButton {
        width: 70vw;
        min-width: 300px;
        margin: 0 auto;
    }
    .signupLoginButton:hover {
        background-color: #fff;
        color: #000;
    }
    #supportedBrowser {
        position: absolute;
        right: 0;
        bottom: 0;
    }
    #supportedBrowser p {
        padding: 5px 20px;
        font-size: 14px;
    }
}



/* xShareButton */
.xShareButton {
    display: flex;
    flex-direction: row;
    justify-content: right;
}
.xShareButton img{
    width: 30px;
    position: absolute;
    display: flex;
}