.on_site-box{
    width: 100%;
    display: block;
    position: relative;
    font-size: 0;
    box-sizing: border-box;
    padding-top: 93px;
    min-height: 100vh;
    background-color: rgba(253, 142, 127, 0.05);
}
.on_site-all-box{
    width: 1200px;
    max-width: 100%;
    display: block;
    margin: 0 auto;
    box-sizing: border-box;
    padding: 80px 0;
}
.on_site-title-box{
    display: block;
    margin-bottom: 40px;
    text-align: center;
    box-sizing: border-box;
    padding-left: 0.2em;
}
#on_site .on_site-title-box{
    margin-bottom: 100px;
}
.on_site-title{
    display: block;
    font-size: 40px;
    font-family: "Noto Sans TC";
    font-weight: 700;
    color: #fd8d7f;
    letter-spacing: 0.2em;
}
.on_site-img-box{
    width: 600px;
    display: block;
    margin: 0 auto;
    margin-bottom: 40px;
}
.on_site-info{
    display: flex;
    display: -webkit-flex;
    align-items: center;
    -webkit-align-items: center;
    justify-content: center;
    -webkit-justify-content: center;
    flex-direction: row;
    position: relative;
}
.on_site-info:nth-child(n + 2){
    margin-top: 100px;
}
.on_site-info:nth-child(even){
    flex-direction: row-reverse;
}
.on_site-info-img {
    width: 720px;
    height: 600px;
    display: inline-block;
    vertical-align: middle;
}
.on_site-info-text-box {
    width: calc(100% - 720px);
    display: inline-block;
    vertical-align: middle;
    box-sizing: border-box;
    padding-left: 65px;
}
.on_site-info:nth-child(even) .on_site-info-text-box{
    padding-left: 0px;
    padding-right: 65px;
}
.on_site-info-title {
    display: inline-block;
    vertical-align: top;
    margin-bottom: 20px;
    position: relative;
}
.on_site-info-title span {
    font-size: 36px;
    font-family: "Noto Sans TC";
    font-weight: 700;
    letter-spacing: 0.06em;
    color: #fd8d7f;
    position: relative;
    display: block;
    z-index: 1;
}
.on_site-info-text {
    font-size: 20px;
    font-family: "Noto Sans TC";
    font-weight: 300;
    line-height: 2;
    display: block;
    color: #666;
    letter-spacing: 0.01em;
}
.on_site-info>span{
    position: absolute;
    top: -93px;
}



@media only screen and (max-width: 1200px){
    .on_site-box{
        padding-top: 65px;
    }
    .on_site-all-box{
        width: 1000px;
    }
    .on_site-info-img {
        width: 620px;
        height: calc((600 / 720) * 620px);
    }
    .on_site-info-text-box {
        width: calc(100% - 620px);
    }
}
@media only screen and (max-width: 1000px){
    .on_site-all-box{
        width: 750px;
    }
    .on_site-info-img {
        width: 470px;
        height: calc((600 / 720) * 470px);
    }
    .on_site-info-text-box {
        width: calc(100% - 470px);
        padding-left: 25px;
    }
    .on_site-info:nth-child(even) .on_site-info-text-box {
        padding-right: 25px;
    }
}
@media only screen and (max-width: 768px){
    .on_site-all-box{
        width: 550px;
        padding: 40px 0;
    }
    #on_site .on_site-title-box{
        margin-bottom: 50px;
    }
    .on_site-info {
        margin-top: 40px;
        flex-direction: column;
    }
    .on_site-info:nth-child(even) {
        flex-direction: column;
    }
    .on_site-info-img {
        width: 100%;
        height: calc((600 / 720) * 550px);
    }
    .on_site-info-text-box {
        width: 100%;
        padding-left: 0;
        margin-top: 10px;
    }
    .on_site-info-title {
        margin-bottom: 10px;
    }
    .on_site-info-title span {
        font-size: 20px;
    }
    .on_site-info:nth-child(even) .on_site-info-text-box {
        padding-right: 0;
    }

    .on_site-img-box{
        width: 80%;
        max-width: 100%;
    }
}
@media only screen and (max-width: 550px){
    .on_site-all-box{
        width: 95vw;
        padding: 20px 0;
    }
    .on_site-title-box,
    #on_site .on_site-title-box{
        margin-bottom: 20px;
    }
    .on_site-info {
        margin-top: 20px;
    }
    .on_site-info-img {
        width: 100%;
        height: calc((600 / 720) * 95vw);
    }
    .on_site-info:nth-child(n + 2){
        margin-top: 40px;
    }
    .on_site-info-title span {
        font-size: 18px;
    }
    .on_site-info-text {
        font-size: 14px;
        line-height: 1.4;
    }

    .on_site-title{
        font-size: 22px;
        letter-spacing: 0.06em;
        padding-left: 0.06em;
    }
}



@media only screen and (min-width: 1001px){
    .on_site-title,
    .on_site-info-img,
    .on_site-info-text-box{
        opacity: 0;
    }
    .on_site-title.anima{
        animation: fadeInDown 1s ease 0s 1 both;
    }
    .on_site-info.anima .on_site-info-img{
        animation: fade 1s ease 0s 1 both;
    }
    .on_site-info.anima:nth-child(odd) .on_site-info-text-box{
        animation: fadeInLeft 1s ease 0s 1 both;
    }
    .on_site-info.anima:nth-child(even) .on_site-info-text-box{
        animation: fadeInRight 1s ease 0s 1 both;
    }
}