.about_con .item{
  position: relative;
  float: left;
  width: 100%;
  height: 100vh;
}

.about_con .item img{
  width: 100%;
}

.text {
    position: absolute;
    text-align: center;
    color: #666;
    width: 100%;
    top: 50%;
    left: 50%;
    margin-left: auto;
    padding: 0 30px;
    -webkit-transform: translate(-50%, -50%);
    -moz-transform: translate(-50%, -50%);
    -ms-transform: translate(-50%, -50%);
    -o-transform: translate(-50%, -50%);
    transform: translate(-50%, -50%);
}

    .text .maintitle {
        font-size: 30px;
        letter-spacing: 4px;
        line-height: 48px;
    }

    .text .subtitle {
        font-size: 20px;
        letter-spacing: 2px;
    }

    .text p {
        font-size: 14px;
        letter-spacing: 1px;
        margin: 25px 0 0;
        line-height: 24px;
    }




  /*手機版陰影*/
.layout_l_l{
 } 

.layout_l_c{
 }     

.layout_l_r{
}

.layout_c_l{

 }  

.layout_c_c{
} 

.layout_c_r{
    text-shadow: 1px 1px 3px #000;
}     

.layout_r_l{
}                     

.layout_r_c{
} 

.layout_r_r{
}
/* 表格版面: 481px 到 768px。樣式繼承自: 行動版面。 */

@media only screen and (min-width: 481px) {

}

/* 桌面版面: 769px 到最大 1232px。樣式繼承自: 行動版面和表格版面。 */

@media only screen and (min-width: 1025px) {
.text {
    width: 35%;
    padding: 0px;
}

    .text .maintitle {
        font-size: 58px;
        letter-spacing: 5px;
        line-height: 66px;
    }

    .text .subtitle {
        font-size: 32px;
        letter-spacing: 3px;
        line-height: 60px;
    }

    .text p {
        font-size: 18px;
        letter-spacing: 2px;
        margin: 35px 0 0;
        line-height: 32px;
    }

    .about_con .layout_l_l {
        position: absolute;
        text-align: left;
        left: 33%;
        top: 50%;
        margin-left: auto;
        -webkit-transform: translate(0%, -50%);
        -moz-transform: translate(0%, -50%);
        -ms-transform: translate(0%, -50%);
        -o-transform: translate(0%, -50%);
        transform: translate(0%, -50%);
    }

    .about_con .layout_l_c {
        position: absolute;
        text-align: center;
        left: 33%;
        top: 50%;
        margin-left: auto;
        -webkit-transform: translate(0%, -50%);
        -moz-transform: translate(0%, -50%);
        -ms-transform: translate(0%, -50%);
        -o-transform: translate(0%, -50%);
        transform: translate(0%, -50%);
    }

    .about_con .layout_l_r {
        position: absolute;
        text-align: right;
        left: 33%;
        top: 50%;
        margin-left: auto;
        -webkit-transform: translate(0%, -50%);
        -moz-transform: translate(0%, -50%);
        -ms-transform: translate(0%, -50%);
        -o-transform: translate(0%, -50%);
        transform: translate(0%, -50%);
    }

    .about_con .layout_c_l {
        position: absolute;
        text-align: left;
        left: 50%;
        top: 50%;
        margin-left: auto;
        -webkit-transform: translate(0%, -50%);
        -moz-transform: translate(0%, -50%);
        -ms-transform: translate(0%, -50%);
        -o-transform: translate(0%, -50%);
        transform: translate(0%, -50%);
    }

    .about_con .layout_c_c {
        position: absolute;
        text-align: center;
        left: 50%;
        top: 50%;
        margin-left: auto;
        -webkit-transform: translate(0%, -50%);
        -moz-transform: translate(0%, -50%);
        -ms-transform: translate(0%, -50%);
        -o-transform: translate(0%, -50%);
        transform: translate(0%, -50%);
    }

    .about_con .layout_c_r {
        position: absolute;
        text-align: right;
        left: 50%;
        top: 50%;
        margin-left: auto;
        -webkit-transform: translate(0%, -50%);
        -moz-transform: translate(0%, -50%);
        -ms-transform: translate(0%, -50%);
        -o-transform: translate(0%, -50%);
        transform: translate(0%, -50%);
    }

    .about_con .layout_r_l {
        position: absolute;
        text-align: left;
        left: 67%;
        top: 50%;
        margin-left: auto;
        -webkit-transform: translate(0%, -50%);
        -moz-transform: translate(0%, -50%);
        -ms-transform: translate(0%, -50%);
        -o-transform: translate(0%, -50%);
        transform: translate(0%, -50%);
    }

    .about_con .layout_r_c {
        position: absolute;
        text-align: center;
        left: 67%;
        top: 50%;
        margin-left: auto;
        -webkit-transform: translate(0%, -50%);
        -moz-transform: translate(0%, -50%);
        -ms-transform: translate(0%, -50%);
        -o-transform: translate(0%, -50%);
        transform: translate(0%, -50%);
    }

    .about_con .layout_r_r {
        position: absolute;
        text-align: right;
        left: 67%;
        top: 50%;
        margin-left: auto;
        -webkit-transform: translate(0%, -50%);
        -moz-transform: translate(0%, -50%);
        -ms-transform: translate(0%, -50%);
        -o-transform: translate(0%, -50%);
        transform: translate(0%, -50%);
    }
}