.index-about-box{
    width: 100%;
    display: block;
    position: relative;
    font-size: 0;
}
.index-about{
    width: 1200px;
    max-width: 100%;
    display: block;
    margin: 0 auto;
    position: relative;
    padding-top: 80px;
    padding-bottom: 80px;
    box-sizing: border-box;
}
.index-about-title{
    font-size: 36px;
    font-family: 'Lato', "微軟正黑體"
    letter-spacing: 1px;
    color: #47a5ee;
    position: relative;
    z-index: 2;
    background-color: #fff;
    padding: 0 10px;
    left: -10px;
}
.index-about-title-line{
    width: 100%;
    display: block;
    height: 1px;
    background-color: #d1d1d1;
    position: absolute;
    top: 110px;
}
.index-about-text-h{
    display: block;
    font-size: 24px;
    font-family: 'Lato', "微軟正黑體"
    margin-top: 25px;
}
.index-about-text{
    display: block;
    font-size: 18px;
    color: #555;
    font-family: 'Lato', "微軟正黑體"
    font-weight: 300;
    line-height: 1.8;
    letter-spacing: 1px;
}
.index-about-img-box{
    margin-top: 150px;
    text-align: center;
    position: relative;
}
.index-about-img{
    position: relative;
    left: 50px;
}
.index-about-img-tw{
    position: relative;
    z-index: 5;
    pointer-events: none;
}
.index-about-img-btn-box{
    position: absolute;
    cursor: pointer;
}
.index-about-img-btn-north{
    top: -30px;
    left: 500px;
}
.index-about-img-btn-east{
    top: 140px;
    left: 360px;
}
.index-about-img-btn-central{
    bottom: 350px;
    left: 265px;
}
.index-about-img-btn-south{
    bottom: 130px;
    left: 295px;
}
.index-about-img-btn{
    position: relative;
}
.index-about-img-btn span{
    width: 100%;
    display: block;
    text-align: center;
    position: absolute;
    top: 40%;
    left: 0;
    font-size: 24px;
    color: #fff;
    font-family: 'Quicksand', "微軟正黑體"
    font-weight: 700;
    letter-spacing: 2px;
}
.index-about-img-btn-central .index-about-img-btn{
    transform: rotateZ(45deg);
}
.index-about-img-btn-central .index-about-img-btn span{
    transform: rotateZ(-45deg);
}
.index-about-img-btn{
    width: 155px;
    height: 155px;
    position: relative;
    background-repeat: no-repeat;
    background-size: cover;
    background-position: center;
    display:         flex;
    display: -webkit-flex;
          align-items: center;
    -webkit-align-items: center;
          justify-content: center;
    -webkit-justify-content: center;
    flex-direction:column;
    -webkit-flex-direction:column;
    background-image: url(../img/front/index-about-btn.png);
    transition: all .3s linear;
}
.index-about-img-text-box{
    position: absolute;
    top: 0;
    left: 0;
}
.index-about-img-text{
    font-size: 160px;
    color: #f5f5f5;
    font-family: 'Quicksand', "微軟正黑體"
    font-weight: 700;
    line-height: 1;
}

/*<-----------hover---------->*/
.index-about-img-btn:hover{
    background-image: url(../img/front/index-about-btn-active.png);
}


@media only screen and (max-width: 1200px){
    .index-about{
        width: 1000px;
    }
    .index-about-img-tw{
        left: 110px;
    }
}
@media only screen and (max-width: 1000px){
    .index-about{
        width: 800px;
    }
    .index-about-title{
        font-size: 32px;
    }
    .index-about-text-h{
        font-size: 22px;
        margin-top: 15px;
    }
    .index-about-text{
        font-size: 16px;
        line-height: 1.6;
    }
    .index-about-img-text{
        display: none;
    }
    .index-about-img{
        left: inherit;
    }
    .index-about-img-tw{
        left: inherit;
    }
    .index-about-img-btn-box{
        position: absolute;
        left: 15%;
    }
    .index-about-img-box{
        margin-top: 30px;
        text-align: right;
    }
    .index-about-img-btn-north{
        top: 30px;
    }
    .index-about-img-btn-east{
        top: 230px;
    }
    .index-about-img-btn-central{
        bottom: inherit;
        top: 430px;
    }
    .index-about-img-btn-south{
        bottom: inherit;
        top: 630px;
    }
}
@media only screen and (max-width: 800px){
    .index-about{
        width: 600px;
    }
    .index-about-title{
        font-size: 30px;
    }
    .index-about-text-h{
        font-size: 20px;
    }
    .index-about-text{
        font-size: 14px;
    }
    .index-about-img-btn-box{
        left: 0;
    }
}
@media only screen and (max-width: 600px){
    .index-about{
        width: 400px;
    }
    .index-about-title{
        font-size: 28px;
    }
    .index-about-text-h{
        font-size: 18px;
    }
    .index-about-text{
        font-size: 12px;
    }
    .index-about-img-btn{
        width: 100px;
        height: 100px;
    }
    .index-about-img-tw{
        width: 70%;
        display: inline-block;
    }
    .index-about-img-btn-north{
        top: 0;
    }
    .index-about-img-btn-east{
        top: 25%;
    }
    .index-about-img-btn-central{
        top: 50%;
    }
    .index-about-img-btn-south{
        top: 75%;
    }
    .index-about-img-btn span{
        font-size: 14px;
    }
}
@media only screen and (max-width: 400px){
    .index-about{
        width: 300px;
        padding-top: 85px;
        padding-bottom: 20px;
    }
    .index-about-title-line{
        top: 110px;
    }
    .index-about-title{
        font-size: 26px;
    }
    .index-about-text-h{
        font-size: 16px;
        margin-top: 10px;
    }
    .index-about-img-btn{
        width: 80px;
        height: 80px;
    }
    .index-about-img-tw{
        width: 65%;
        display: inline-block;
    }
}



/*animation*/
/*<-------------動畫------------->*/

@keyframes example {
    0%{

    }
    to {
        
    }
}
@media only screen and (min-width: 1001px){

}