.top-title{
    background: url(../images/security-top.png) no-repeat 50% 50%;
    background-size: cover;
    height: 300px;
    text-align: center;
    display: flex;
    flex-direction: column;
    justify-content: center;
}
.top-title h3{
    font-size: 32px;
    color: #ffffff;
    font-weight: 700;
    padding: 0 30px;
}
.top-title p{
    font-size: 18px;
    color: #ffffff;
    margin-top: 10px;
    padding: 0 30px;
    line-height: 1.4;
}

.tab_wrap{
    border-bottom: 1px solid #aeaeae;
    margin: 20px 0 100px
}
.tab_wrap ul{
    max-width: 1250px;
    margin: 0 auto;
    display: flex;
    height: 40px;
    align-items: center;
    justify-content: center;
    text-align: center;
}
.tab_wrap ul li{
    margin: 0 50px;
    height: 100%;
    display: block;
    padding: 0 20px;
    line-height: 40px;
    cursor: pointer;
}
.tab_wrap ul li.active{
    border-bottom: 2px solid var(--color-blue);
    color: var(--color-blue);
}
.container{
    max-width: 1250px;
    padding: 0 30px;
    margin: 0 auto 120px;
}
.tab_cont{display: none;}
.tab_cont.active{display: block;}
.tab-title{
    font-size: 20px;
    color: var(--color-blue);
    text-align: center;
    margin-bottom: 10px;
}
h4{
    font-weight: bold;
    font-size: 30px;
    text-align: center;
    margin-bottom: 45px;
}
.content > p{
    text-align: center;
    margin-bottom: 60px;
    font-weight: 18px;
}
.box1 p{
    text-align: center;
    line-height: 1.8;
    margin: 24px 0 80px;
}
.taggant-img{display: block;}
.taggant-img-m{display: none;}
.box2{
    justify-content: center;
    display: flex;
    align-items: center;
    width: 85%;
    margin: 0 auto;
}
.box2 > img{
    width: 42%;
    margin-right: 100px;
}
.box2 span{
    display: inline-block;
    width: 8px; height: 8px;
    background-color: var(--color-blue);
    border-radius: 50%;
}
.box2 p{
    line-height: 1.6;
}
.box2 p:first-of-type{
    margin-bottom: 30px;
}
/* 이미지보안 */
.sqr-content{
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
}
.sqr-content > div{
    width: 32%;
}
.sqr-content > div > div{
    border: 1px solid var(--border-color);
    padding: 20px;
    height: 400px;
    place-items: center;
    display: grid;
}
.sqr-content > div > div > img{
    width: 90%;
}
.sqr-content > .box3 > div > img{
    width: 50%;
}
.sqr-content > div > p{
    margin-top: 25px;
    line-height: 1.8;
    text-align: center;
}
.box5{
    margin-top: 150px;
    padding: 100px 30px;
    background-color: #f6f6f6;
    text-align: center;
}
.box5 > img{
    max-width: 650px;
}
.box5 > p{
    margin-top: 40px;
}
/* 블록체인 */
.blockchain-content > p{
    text-align: center;
    width: 65%;
    margin: 0 auto;
    line-height: 1.6;
    margin-bottom: 35px;
}
.box6 > div{
    width: 100%;
    text-align: center;
    padding: 35px;
    background-color: #F9F9F9;
}
.box6 > div > img{
    width: 50%;
}
.box6 > p{
    width: 50%;
    line-height: 1.6;
    text-align: center;
    margin: 35px auto 0;
}
/* 육안보안 */
.box7{
    max-width: 680px;
    margin: 100px auto 0;
    padding: 0 30px;
}
.flo-content{
    background-color: #f6f6f6;
    padding: 100px 30px;
    margin-top: 100px;
}
.flo-content > div{
    max-width: 1250px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    line-height: 1.6;
}
.flo-content > div > img{
    width: 40%;
}
.flo-content .box8{margin: 0 auto 80px;}
.flo-content .box8 > img{
    margin-right: 60px;
}
.flo-content .box9{
    justify-content: flex-end;
    text-align: right;
}
.flo-content .box9 > img{
    margin-left: 60px;
}
/* 그래핀 */
.box10{
    max-width: 1250px;
    margin: 100px auto 0;
    padding: 0 30px;
    text-align: center;
}
.box10 > img{
    width: 80%;
}
.box10 > p{
    width: 65%;
    line-height: 1.6;
    margin: 60px auto 120px;
}
.box11{
    background: url(../images/graphene-img2.png) no-repeat 50% 50%;
    background-size: cover;
    height: 450px;
    display: grid;
    place-items: center;
}
.box11 > p{
    font-size: 26px;
    color: #ffffff;
    line-height: 1.8;
    text-align: center;
    padding: 0 30px;
}


@media screen and (max-width: 975px) {
    .tab_wrap ul li{margin: 0 30px;}
    .box2 > img{margin-right: 80px;}

    .sqr-content > div > div{height: 360px;}
    .sqr-content > div > div > img{width: 100%;}
    .sqr-content > .box3 > div > img{width: 65%;}
    .box5{margin-top: 100px;}
}
@media screen and (max-width: 768px) {
    .tab_wrap{margin: 20px 0 60px;}
    .tab_wrap ul li{margin: 0 20px; padding: 0 10px;}
    h4{font-size: 26px;}
    .tab-title{font-size: 16px;}
    .box2{
        flex-direction: column;
        width: 100%;
    }
    .box2 > img{margin-right: 0px; width: 100%; margin-bottom: 25px;}

    .sqr-content {flex-direction: column;}
    .sqr-content > div{width: 100%;}
    .sqr-content > div > div{
        height: 300px; 
        place-items: initial;
    }
    .sqr-content > .box3 > div > img{
        width: auto;
        max-width: 75%;
        max-height: 75%;
        height: auto;
        margin: auto auto;
    }
    .sqr-content > div > div > img{
        width: auto;
        max-width: 95%;
        max-height: 90%;
        height: auto;
        margin: auto auto;
    }
    .sqr-content > div > p{margin: 10px 0;}
    .box5{margin-top: 60px; padding: 60px 30px;}
    .blockchain-content > p, .box6 > p{width: 100%;}
    .box6 > div > img{width: 80%;}
    .flo-content{margin-top: 80px;}
    .flo-content p br{display: none;}
    .flo-content .box8 > img{margin-right: 40px;}
    .flo-content .box9 > img{margin-left: 40px;}
    .box10{margin: 80px auto 0}
    .box11{height: 340px;}
    .box11 > p{font-size: 24px;}
    .box11 > p br{display: none;}
}

@media screen and (max-width: 640px) {
    .taggant-img{display: none;}
    .taggant-img-m{display: block;}
}
@media screen and (max-width: 560px) {
    h4{font-size: 20px;}
    .tab_wrap ul li{width: 20%; margin: 0 5px;}
}

@media screen and (max-width: 500px) {
    .top-title{height: 200px;}
    .top-title h3{font-size: 28px;}
    .top-title p{font-size: 16px;}
    .tab_wrap ul li{padding: 0;}
    .box1 p br{display: none;}
    .flo-content{margin-top: 40px;}
    .flo-content > div > img{width: 80%; margin-bottom: 25px;}
    .flo-content .box8{flex-direction: column; text-align: center;}
    .flo-content .box9{flex-direction: column-reverse; text-align: center;}
    .flo-content .box8 > img{margin-right: 0;}
    .flo-content .box9 > img{margin-left: 0;}
    .box10{margin: 60px auto 0} 
    .box10 > img{width: 100%;}
    .box10 > p{width: 100%; margin: 30px 0 100px;}
    .box11{height: 300px;}
    .box11 > p{font-size: 20px;}

}