.index-advantage-box{
    width: 1920px;
    max-width: 100%;
    display: block;
    margin: 0 auto;
    position: relative;
}
.index-advantage-all-box{
    width: 750px;
    max-width: 100%;
    display: block;
    margin: 0 auto;
    position: relative;
    z-index: 1;
    font-size: 0;
    box-sizing: border-box;
    padding: 70px 0;
}
.index-advantage-title-box h2{
    font-size: 32px;
    font-weight: bold;
    letter-spacing: 1px;
    color: #93221b;
    line-height: 40px;
    text-align: center;
    transform: skewX(-10deg);
}


.index-advantage-info-box{
    margin-top: 80px;
    display: block;
}
.index-advantage-info{
    width: 150px;
    display: inline-block;
    vertical-align: top;
    margin-bottom: 30px;
    margin-right: 50px;
}
.index-advantage-info:nth-child(4n){
    margin-right: 0;
}
.index-advantage-info-icon-box{
    width: 100%;
    height: 150px;
    display: block;
    background-color: #93221b;
    border-radius: 50%;
    box-sizing: border-box;
    padding: 7px;
}
.index-advantage-info-icon-box span{
    width: 100%;
    height: 100%;
    background-color: #fff;
    border-radius: 50%;
    display: flex;
    display: -webkit-flex;
    align-items: center;
    -webkit-align-items: center;
    justify-content: center;
    -webkit-justify-content: center;
    flex-direction: column;
    box-shadow: 0 0 10px rgba(0,0,0,.7);
}
.index-advantage-info>span{
    font-size: 14px;
    color: #555;
    letter-spacing: 0.02em;
    text-align: center;
    overflow : hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 4;
    -webkit-box-orient: vertical;
}
.index-advantage-info-text{
    font-size: 16px;
    color: #93221b;
    letter-spacing: 0.02em;
    text-align: center;
    margin-top: 10px;
}


@media only screen and (max-width: 800px){
    .index-advantage-info{
        width: 130px;
        margin-right: 10px;
    }
    .index-advantage-info-icon-box{
        height: 130px;
    }
    .index-advantage-all-box{
        width: 550px;
    }
}
@media only screen and (max-width: 750px){
    .index-advantage-title-box h2{
        font-size: 26px;
        line-height: 36px;
    }
    .index-advantage-all-box{
        padding: 50px 0;
    }
    .index-advantage-info-box{
        margin-top: 60px;
    }
}
@media only screen and (max-width: 600px){
    .index-advantage-all-box{
        width: 550px;
    }
}
@media only screen and (max-width: 550px){
    .index-advantage-all-box{
        width: 280px;
        padding: 20px 0;
    }
    .index-advantage-info-box{
        margin-top: 20px;
    }
    .index-advantage-info{
        text-align: center;
        margin-bottom: 10px;
    }
    .index-advantage-info:nth-child(n){
        margin-right: 20px;
    }
    .index-advantage-info:nth-child(2n){
        margin-right: 0px;
    }
    .index-advantage-info-icon-box{
        width: 100px;
        height: 100px;
        display: inline-block;
        padding: 4px;
    }
    .index-advantage-info-icon-box span{
        overflow: hidden;
        box-sizing: border-box;
        padding: 10px;
        box-shadow: 0 0 8px rgba(0,0,0,.7);
    }
    .index-advantage-info-text{
        font-size: 12px;
    }
    .index-advantage-title-box h2 {
        font-size: 20px;
        line-height: inherit;
    }
    .index-advantage-info>span{
        font-size: 12px;
    }
    .index-advantage-info-box{
        display: block;
    }
}



@media only screen and (min-width: 1000px){
    .index-advantage-title-box h2,
    .index-advantage-info-icon-box,
    .index-advantage-info-text,
    .index-advantage-info>span{
        opacity: 0;
    }
    .index-advantage-title-box.anima h2{
        animation: fadeInDown 1s ease 0s 1 both;
    }
    .index-advantage-info.anima .index-advantage-info-icon-box{
        animation: fade 1s ease 0s 1 both;
    }
    .index-advantage-info.anima .index-advantage-info-text{
        animation: fadeInUp 1s ease 0.2s 1 both;
    }
    .index-advantage-info.anima>span{
        animation: fadeInUp 1s ease 0.2s 1 both;
    }
}