/*contents*/
#contnets{overflow: hidden;}
.sub-visual{
    overflow: hidden;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
    /* margin-top: 50px; */
}
.sub-visual.small{
    height: 34em;
    background: url(../image/sub/astra_main.png) no-repeat;
    background-size: cover;
}
.sub-tit{
    display: block;
    position: relative;
    z-index: 10;
    width: 100%;
    font-size: 60px;
    color: #fff;
    font-weight: 700;
    text-align: center;
}
.breadcrumb{
    position: absolute;
    left: 50%;
    bottom: 3.5em;
    z-index: 10;
    color: #fff;
    max-width: 1440px;
    width: 90%;
    text-align: right;
    transform: translateX(-50%);
}
.breadcrumb ul{float: right;}
.breadcrumb ul li{float: left; margin-right: 10px;}
.breadcrumb ul li a{color: #fff; cursor: pointer;}

.sub-con{
    padding: 160px 0 80px 0;
    overflow: hidden;
}
.maxinner{
    width: 1440px;
    margin: 0 auto;
}
.sub-con-tit{
    width: 100%;
    display: flex;
    align-items: center;
    margin-bottom: 160px;
}
.sub-con-tit > img{
    float: left;
    margin-right: 80px;
}
.sub-con-tit-right > h2{
    font-size: 16px;
    line-height: 26px;
    font-weight: 500;
    margin-bottom: 30px;
}
.sub-con-tit-right > h1{
    font-size: 26px;
    font-weight: 600;
    margin-bottom: 60px;
}
.sub-con-tit a button{
    border: none;
    background-color: #fff;
    padding: 10px 20px;
    border: 1px solid #191919;
    font-weight: 600;
}
.sub-con-tit a button:hover{
    background-color: #191919;
    color: #fff;
    cursor: pointer;
}


/*conbox*/
.sub-con-tit > h2 {
    font-size: 26px;
    font-weight: 700;
    text-align: center;
    margin-bottom: 160px;
}

.conbox {
    width: 1440px;
    margin: 0 auto;
    margin-bottom: 80px;
}

.halfbox {
    width: 100%;
    overflow: hidden;
    display: flex;
    flex-direction: row-reverse;
    align-items: center;
}

.halfbox.row {
    display: flex;
    flex-direction: row;
}

.halfbox .left {
    float: left;
    width: 720px;
    box-sizing: border-box;
}

.halfbox .left > img {
    width: 100%;
}

.halfbox .right {
    float: right;
    width: 50%;
    box-sizing: border-box
}

.halfbox .right > img {
    width: 100%;
}

.halfbox .conboxTxt {
    padding-left: 60px;
}

.halfbox .conboxTxt > h3 {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 10px;
}

.halfbox .sub-conboxTxt > h3 {
    font-size: 18px;
    margin-bottom: 10px;
}

.halfbox .sub-conboxTxt {
    width: 100%;
}

.halfbox .conboxTxt > span {
    width: 92%;
    display: inline-block;
    font-size: 16px;
    line-height: 26px;
    font-weight: 500;
    margin-bottom: 32px;
    color: #767676;
}

.halfbox .conboxTxt > p,
.halfbox .sub-conboxTxt > p {
    width: 92%;
    font-size: 16px;
    line-height: 26px;
    margin-bottom: 34px;
}

.right .nuclear > h3 {
    font-size: 16px;
}

.right .nuclear > p {
    font-size: 14px;
    line-height: 22px;
    margin-bottom: 20px;
}


/*----------------------------------------------------*/

@media screen and (max-width: 1500px){
    .main-visual-btn{width: 94%;}
    .sec-box.intro{
        width: 94%;
        padding: 100px 0;
    }
    
    /*sub-con*/
    .maxinner{width: 94%; margin: 0 auto;}
    .function-txt > p {padding-right: 10%;}
    .conbox {
    	width: 100%;
    }
}

@media screen and (max-width: 1024px){
    .breadcrumb {
        width: 96%;
        bottom: 1.5em;
    }
    .sub-tit{font-size: 48px;}
    .sub-visual.small {height: 26em;}  
    
    /*sub-con*/
    .sub-con{padding: 120px 0 60px 0;}
    .sub-con-tit {margin-bottom: 120px;}
    .sub-con-tit > img {
        width: 40%;
        margin-right: 60px;
    }
    .sub-con-tit-right > h2 {
        font-size: 14px;
        line-height: 22px;
    }
    .sub-con-tit-right > h1 {font-size: 22px;}
    .maxinner{width: 94%;}
    .conbox{margin-bottom: 40px;}
    .conbox:last-child {margin-bottom: 80px;}
    .function ul li {
        width: 100%;
        margin-bottom: 60px;
    }
    .function-txt {width: 60%;}
    .halfbox {
        display: flex;
        flex-direction: column-reverse;
    }

    .halfbox .left {
        float: none;
        width: 100%;
    }

    .halfbox .right {
        float: none;
        width: 100%;
    }

    .halfbox .right > img {
        width: 100%;
    }

    .halfbox.row {
        flex-direction: column-reverse;
    }

    .halfbox .conboxTxt {
        padding: 40px;
        padding-left: 0;
    }
}

@media screen and (max-width: 768px){
    .sub-tit {font-size: 44px;}
    
    /*sub-con*/
    .sub-con {padding: 80px 0 20px 0;}
    .sub-con-tit {
        flex-direction: column;
        margin-bottom: 80px;
    }
    .sub-con-tit > img {
        width: 100%;
        margin-right: 0px;
        margin-bottom: 40px;
    }
    .sub-con-tit > h2 {
        font-size: 22px;
        margin-bottom: 80px;
    }
    .sub-con-tit-right > h2 {margin-bottom: 20px;}
    .sub-con-tit-right > h1 {margin-bottom: 30px;}
    .function ul li {
        margin-bottom: 60px;
        flex-direction: column;
    }
    .function-img {
        width: 100%;
        margin-right: 0px;
        margin-bottom: 20px;
    }
    .function-txt {width: 100%;}
    .conbox:last-child {
        margin-bottom: 40px;
    }
    .halfbox .conboxTxt {
        padding-left: 0;
    }

    .halfbox .conboxTxt > p {
        width: 100%;
    }

    .halfbox .conboxTxt > h3 {
        font-size: 22px;
        margin-bottom: 4px;
    }
}

@media screen and (min-width: 360px) and (max-width: 500px){
    .sub-tit {
        font-size: 38px;
        padding-top: 4%;
    }
    .sub-con-tit a button {font-size: 12px;}
    .sub-visual.small {height: 22em;}
    .breadcrumb{display: none;}
    
    /*sub-con*/
    .sub-con-tit > h2 {font-size: 18px;}
    .maxinner{width: 90%;}
    .conbox:last-child {margin-bottom: 80px;}
    .counselingBtn > button,
    .educationBtn > a > button{right: 20px;}
    .conbox button {font-size: 12px;}
    .function-txt > h2 {font-size: 20px;}
    .function-txt > p {
        font-size: 14px;
        line-height: 22px;
    }
    .halfbox .conboxTxt {
        padding: 0px;
        padding-top: 30px;
    }

    .halfbox .conboxTxt > h3 {
        font-size: 22px;
    }

    .halfbox .conboxTxt > p {
        width: 100%;
        margin-bottom: 30px;
    }

    .halfbox .conboxTxt > span {
        font-size: 14px;
        line-height: 22px;
        margin-bottom: 22px;
    }

    .conbox {
        margin-bottom: 60px;
    }

    .conbox:last-child {
        margin-bottom: 80px;
    }

    .conbox button {
        font-size: 12px;
    }

    .halfbox .conboxTxt > h3 {
        font-size: 20px;
        margin-bottom: 4px;
    }

    .halfbox .conboxTxt > p {
        font-size: 14px;
        line-height: 22px;
        margin-bottom: 40px;
    }

    .halfbox .sub-conboxTxt > h3 {
        font-size: 16px;
    }

    .halfbox .sub-conboxTxt > p {
        font-size: 14px;
    }
    
}