html {
    scroll-behavior: smooth;
}
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Noto Sans KR', sans-serif;
    background-color: rgb(249, 243, 234);
    /* font-size:x-large; */
    /* height: 1500px; */
}

p {
    font-size: 17.5px;
    padding: 20px;
    text-align: justify;
}

h4 {
    font-size: 17px;
}

h4, p {
    margin-left: 20px;
    margin-right: 20px;
}

#blank {
    position: relative;
    height: 120px;
    text-align: center;
    padding: 10px;
    /* border-bottom: 2px solid #fff; */
    opacity: 0.9;
    background-image: url(../img/main_bg1.jpg);
    background-size: 100% auto;
    background-repeat: no-repeat;
    background-attachment: fixed;
    /* text-align: center; */
    /* font-family: 'Gothic A1', sans-serif; */
}

#blank p {
    font-size: 17.5px;
    font-weight: bold;
    /* letter-spacing: 5px; */
    /* text-shadow: -3px 3px 2px rgba(255,0,50,0.5),2px 2px rgba(255, 255, 0, 0.5),0px 2px 2px rgba(0, 0, 255, 0.5), 0px 2px 2px rgba(0, 255, 0, 0.7); */
    color: #fff;
    position: relative;
    padding: 0;
    text-align: center;
}

#blank .color {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgb(255, 145, 20);
    /* background-color: magenta; */
    opacity: 0.45;
}

h1 {
    position: relative;
    margin-top: 10px;
    font-size: 46px;
    color: #fff;
    text-shadow: 0px 0px 2px rgba(0, 0, 0, 0.5);
    font-family: 'Vujahday Script', cursive;
    /* cursor: pointer; */
    /* letter-spacing: 5px; */
    /* z-index: 9999; */
}

h1 span {
    font-size: 36px;
    vertical-align: bottom;
}


header {
    position: relative;
    height: 50px;
    margin: 0 auto;
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
    text-align: center;
    background-color: rgba(255, 145, 20, 1.0);
    transition: background-color 0.4s;
    border-top: 1px solid #fff;
    border-bottom: 4px solid #fff;
}

header.active {
    width: 100%;
    position: fixed;
    top: 0;
    left: 0;
    height: 50px;
    margin-top: 0;
    background-color: rgb(145, 20, 255);
    /* background-color: magenta; */
    border-top: 2px solid #000;
    border-bottom: 4px solid #000;
    opacity: 0.85;
    z-index: 999;
}

header.active #gnb {
    color: #fff;
    margin: -5px auto;
}

header.active #gnb a {
    color: #fff;
}


#gnb_indicator {
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: 46px;
    text-align: center;
    z-index: 0;
    background-color: transparent;
}

#gnb_indicator div {
    position: relative;
    width: 850px;
    height: 46px;
    margin: 0 auto;
    z-index: 0;
    /* background-color: rgba(0, 0, 0, 0.3); */
}

#gnb_indicator div div {
    position: absolute;
    left: -170px;
    top: 0;
    width: 170px;
    height: 46px;
    z-index: 0;
    background-color: #fff;
    transition: all 0.3s;
}


#gnb {
    position: relative;
    text-align: center;
    height: 100%;
    width: 850px;
    margin: 0 auto;
    z-index: 9;
    /* background-color: blue; */
}

#gnb>li {
    float: left;
    /* display: inline-block; */
    width: 170px;
    height: 50px;
    line-height: 46px;
    list-style: none;
    text-align: center;
    /* border: 1px solid white; */
}

header.active #gnb>li {
    border-bottom: none;
}

#gnb li:last-child {
    margin-right: 0;
}

#gnb a {
    text-decoration: none;
    color: #000;
    font-size: 22px;
    display: inline-block;
    width: 100%;
    height: 48px;
}

#gnb>li:hover a {
    background-color: #fff;
}

#gnb>li:hover a {
    color: #f00;
}

.lnb {
    list-style: none;
    margin-top: 20px;
    display: none;
   /*javascript로 변경*/
}

.lng li {
    margin: 10px;
}


/*사이드 메뉴 */

#sideGNB a {
    text-decoration: none;
    color: rgb(145, 20, 255);
    border-bottom: 1px solid rgba(145, 20, 255,0.4);
    border-top: 1px solid rgba(145, 20, 255,0.4);
    border-left: 1px solid rgba(145, 20, 255,0.4);
    border-radius: 12px 0 0 0px;
    /* font-weight: bold; */
}
#sideGNB a:hover {
    /* text-decoration: underline; */
    color: #f00;
    /* border-bottom: none; */
}

aside {
    background-color: transparent;
    /* clear: both; */
    position: absolute;
    top: 550px;
    right: 0px;
    transition: top 0.5s;
}

aside>ul {
    background-color: transparent;
    /* border: 1px solid pink; */
    /* display: none; */
}

ul#sideGNB li {
    background-color: transparent;
    text-align: right;
    list-style: none;
    margin-bottom: 20px;
    transition: all 0.3s;
}



/*콘텐츠 항목 시작*/

#container {
    text-align: center;
}

#container section {
    /* margin-top: 20px; */
    margin-bottom: 40px;
}

#container h3:nth-child(2) {
    margin-top: 20px;
}

#container section:nth-child(3) {
    margin-top: 20px;
}

/* #container .contents_A section img{

    width: 100%;

} */



/*콘텐츠 A영역*/

.contents_A .imgbg {
    width: 100%;
    height: 350px;
    background-image: url(../img/main_bg1.jpg);
    background-size: 100% auto;
    background-repeat: no-repeat;
    background-attachment: fixed;
    /* border: 1px solid; */
}

/* .contents_B .imgbg {

    width: 100%;

    height: 250px;

    background-image: url(https://picsum.photos/1700/250);

    background-size: 300% auto;

    background-repeat: no-repeat;

    background-attachment: fixed;

} */

.contents_A section ul {
    text-align: center;
}

.contents_A h3 {
    margin: 10px;
}

.contents_A h3 span {
    font-size: 14px;
    color: #555;
}

.contents_A button {
    width: 150px;
    height: 40px;
    margin: 10px;
}

#container .contents_A li {
    display: inline-block;
    width: 400px;
    height: 250px;
    background-color: gray;
    border-radius: 20px;
    overflow: hidden;
}

.sample1 li:nth-child(1) {
    border: 1px solid rgba(0, 0, 0, 0.25);
    background-image: url(../img/stex_sample1.jpg);
    background-size: cover;
    background-position: center center;
}

.sample1 li:nth-child(2) {
    border: 1px solid rgba(0, 0, 0, 0.25);
    background-image: url(../img/stex_sample2.jpg);
    background-size: cover;
    background-position: center center;
    margin-left: 20px;
    margin-right: 20px;
}

.sample1 li:nth-child(3) {
    border: 1px solid rgba(0, 0, 0, 0.25);
    background-image: url(../img/stex_sample3.jpg);
    background-size: cover;
    background-position: center center;
}

.sample1 p {
    position: relative;
    left: 0;
    top: -100%;
    display: inline-block;
    width: 100%;
    height: 100%;
    margin: 0;
    background-color: rgba(0, 0, 0, 0.7);
    transition: all 0.4s;
}

.sample1 p a {
    color: #fff;
    /* font-weight: bold; */
}

.sample1 p span {
    color: #fff;
    font-size: 15px;
}

.contents_A article {
    display: inline-block;
    width: 490px;
    height: 300px;
    background-color: rgba(0, 0, 0, 0.25);
    border-radius: 20px;
    overflow: hidden;
}

.plus_view article:nth-child(1) {
    border: 1px solid rgba(0, 0, 0, 0.25);
    background-image: url(../img/stex_sample4.jpg);
    background-size: cover;
    background-position: center center;
    margin-right: 10px;
}

.plus_view article:nth-child(2) {
    border: 1px solid rgba(0, 0, 0, 0.25);
    background-image: url(../img/stex_sample5.jpg);
    background-size: cover;
    background-position: center center;
    margin-left: 10px;
}

.plus_view p {
    position: relative;
    left: 0;
    top: 100%;
    display: inline-block;
    width: 100%;
    height: 100%;
    margin: 0;
    background-color: rgba(0, 0, 0, 0.7);
    transition: all 0.4s;
}

.plus_view p a {
    color: #fff;
}

.plus_view p span {
    font-size: 15px;
    color: #fff;
}

#container .plus_view {
    margin-bottom: 20px;
    height: 20px;
    opacity: 0.5;
    transition: all 0.6s;
    overflow: hidden;
}

/* .plus_view {

    display: none;

} */

#minus {
    display: none;
}


/*콘텐츠 B 영역 ------------------*/

.contents_B {
    position: relative;
}

.contents_B #coding {
    position: relative;
    margin-top: 20px;
    padding-top: 50px;
	width: 100%;
	height:400px;
	overflow:hidden;
	
}

.contents_B #coding img {
    width: 100%;
    height: auto;
	margin-top:-200px;
}

.contents_B #coding p {
    position: absolute;
    bottom: 0;
    width: 100%;
    margin: 0;
    padding: 10px;
    font-size: 16.5px;
    text-align: center;
    border-bottom: 1px solid gray;
    background-color: rgba(255, 255, 255, 0.6);
}

.contents_B .code_text {
    width: 980px;
    margin: 0 auto;
    height: auto;
    border-top: 1px solid;
    /* border-bottom: 1px solid; */
    margin-bottom: 20px;
}
.code_text h4{
    text-align: left;
    margin-top: 10px;
}
.code_text p {
    padding: 0;
    /* font-size: 16px; */
}
.code_text p span {
    color: #f00;
    font-weight: bold;
}
.code_ready {
    padding: 0;
    margin: 0;
    text-align: left;
}
.code_ready p {
    margin-bottom: 20px;
}
.code_ready .add_text, .add_text {
    font-size: 14px;
    color: navy;
    font-weight: normal;
}
.code_ready li {
    list-style: none;
    margin-bottom: 30px;
}
.code_ready li a {
    border-radius: 12px 0 0 12px;
    background-color: #777;
    color: #fff;
}
.code_ready li a:hover {
    color: #0ff;
}
.code_ready li table {
    border-collapse: collapse;
}
.code_ready li table tr{
    height: 40px;
}
.code_ready li table a{
    background-color: transparent;
    text-decoration: none;
    color: #000;
}
.code_ready li table a:hover{
    background-color: transparent;
    color: #f00;
}
.code_ready li table td {
    border-bottom: 1px solid #ccc;
    font-size: 16px;
}
.code_ready li table td {
    width: 250px;
}
.code_ready li table td:first-child {
    text-align: center;
    width: 250px;
    /* padding-right: 10px; */
}
.code_ready li tr td.table_title {
    text-align: center;
}
.code_ready .broswer {
    width: 980px;
}
.code_ready .broswer tr:first-child{
    background-color: #fff;
}

.code_ready .broswer td{
    border: 1px solid #ccc;
    width: 150px;
    text-align: center;
}
.code_ready .broswer tr td:first-child{
    width: 145px;
}
.code_site, .color_site {
    width: 450px;
    display: inline-block;
    /* background-color: gray; */
    vertical-align: top;
    margin-right: 10px;
    margin-left: 10px;
}


.contents_B #download {
    width: 980px;
    margin: 0 auto;
    margin-top: 20px;
    padding-top: 50px;
    /* border-top: 1px solid; */
}
#download h3 {
    padding-bottom: 10px;
    border-bottom: 1px solid;
}
#download table {
    border-collapse: collapse;
    width: 980px;
    border-top: 1px solid #ccc;
}
#download table tr{
    height: 40px;
}

#download .src_down td {
    border-bottom: 1px solid #ccc;
    font-size: 16px;
    width: 50px;
    text-align: center;
    padding: 10px;
    /* background-color: #555; */
}
.src_down a {
    color: #000;
    text-decoration: none;

}
.src_down a:hover {
    color: #f00;
}




#download p {
    padding: 0;
    font-size: 18.5px;
    margin-bottom: 20px;
}

#download .add_text {
    font-size: 14px;
    color: navy;
    font-weight: normal;
}



/* 콘텐츠 C 영역 ------------------*/

#contents_C .imgbg {
    width: 100%;
    height: 350px;
    background-image: url(../img/main_bg3.jpg);
    background-size: 100% auto;
    background-repeat: no-repeat;
    background-attachment: fixed;
    /* border: 1px solid; */
}

#contents_C {
    /* padding-top: 40px; */
    background-color: rgb(234, 235, 249);
    padding-top: 50px;
}

#contents_C p img {
    width: 350px;
    transition: transform 0.3s;
}

#contents_C section {
    width: 980px;
    margin: 10px auto;
    text-align: center;
    padding-bottom: 20px;
    /* margin-right: 200px; */
    /* margin-left: 200px; */
    border-bottom: 1px dashed rgb(200, 200, 200);
}

#contents_C .sub_text {
    padding-bottom: 20px;
}
#contents_C h4 a {
    color: #000;
    text-decoration: none;
    vertical-align: top;
}
#contents_C h4 a:hover {
    color: #f00;
}

.left_sample {
    display: inline-block;
    vertical-align: top;
    width: 330px;
    height: 210px;
    /* margin-right: 20px; */
    padding: 0;
    margin: 0;
    margin-right: 10px;
    /* border: 1px solid red; */
}
.left_sample a:hover img {
    transform: scale(1.05);
}
.right_sample {
    display: inline-block;
    vertical-align: top;
    width: 550px;
    /* margin-right: 20px; */
    /* padding: 0; */
    margin: 0;
    margin-left: 10px;
    /* border: 1px solid red; */
}
.right_sample a {
    text-decoration: none;
    color: #000;
    margin-left: 10px;
    text-transform: uppercase;
}
.right_sample a:hover {
    text-decoration: underline;
    color: #f00;
}

#contents_C .left_sample {
    /* height: 210px; */
    border-radius: 13px;
    overflow: hidden;
    /* box-shadow: 0px -3px 6px gray; */
    /* border: 1px solid gray; */
}

#contents_C .right_sample {
    border-left: dashed 1px rgba(0, 0, 0, 0.1);
    text-align: left;
    /* padding-left: 20px; */
}

#contents_C a {
    vertical-align: middle;
    /* font-size: 18.5px; */
}

#contents_C span {
    font-size: 18.5px;
}

#contents_C h3 {
    border-bottom: 1px solid;
    padding-bottom: 10px;
    margin-bottom: 10px;
}

/*콘텐츠 D영역 ------------------*/
#contents_D {
    padding-top: 50px;
    padding-bottom: 50px;
    margin-bottom: 100px;
}

#contents_D .imgbg {
    width: 100%;
    height: 350px;
    background-image: url(../img/main_bg4.jpg);
    background-size: 100% auto;
    background-repeat: no-repeat;
    background-attachment: fixed;
    /* border: 1px solid; */
}

#contents_D h3 {
    border-bottom: 1px solid;
    padding-top: 10px;
    padding-bottom: 10px;
    margin-bottom: 10px;
}

#contents_D .port_text {
    width: 980px;
    margin: 0 auto;
    /* height: 600px; */
    /* border: 1px solid; */
}
.port_text a {
    border-radius: 12px 0 0 12px;
    background-color: #777;
    color: #fff;
}
.port_text a:hover {
    color: #0ff;
}
.ani_item {
    display: inline-block;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background-color: #0ff;
    animation: indi 1s infinite alternate;
}
@keyframes indi {
    0%{transform: translateX(0px);}
    100%{transform: translateX(5px);}
}

/*콘텐츠 D영역 ------------------*/

#contents_E {
    padding-top: 50px;
}

#contents_E .imgbg {
    width: 100%;
    height: 350px;
    background-image: url(../img/main_bg5.jpg);
    background-size: 100% auto;
    background-repeat: no-repeat;
	background-position: 0px -500px;
    /* background-attachment: fixed; */
    /* border: 1px solid; */
}

#contents_E .ftp_text {
    width: 980px;
    margin: 0 auto;
    /* height: 600px; */
    /* border: 1px solid; */
}
.ftp_text h3 {
    border-bottom: 1px solid;
    padding-bottom: 10px;
}

.ftp_text ul li {
    text-align: left;
    margin: 10px;
    margin-left: 80px;
}
.ftp_text li a {
    border-radius: 12px 0 0 12px;
    background-color: #777;
    color: #fff;
}
.ftp_text li a:hover {
    color: #0ff;
}

/*푸터영역*/

footer {
    margin-top: 100px;
    text-align: center;
    background-color: rgba(0, 0, 0, 0.1);
    /* border-top: 2px solid rgba(7, 208, 243, 0.3); */
    padding: 20px;
}
footer p {
    color: #555;
    text-align: center;
}

#goTop {
    position: fixed;
    bottom: 10px;
    right: 10px;
    width: 60px;
    height: 60px;
    line-height: 60px;
    /* border: 1px solid gray; */
    font-size: 30px;
    background-color: #fff;
    box-shadow: 0px 0px 3px rgba(0, 0, 0, 0.55);
    border-radius: 50%;
    /* transform: rotate(90deg); */
    overflow: hidden;
    transition: opacity 0.5s;
    opacity: 0;
    padding: 0;
    border: 1px solid gray;
}

#goTop.on {
    opacity: 1;
}

#goTop a {
    display: inline-block;
    width: 100%;
    height: 100%;
    color: #000;
    text-decoration: none;
    text-align: center;
    font-weight: bold;
}

#goTop a:hover {
    background-color: orange;
    color: #fff;
}

#quicklink {
    width: 500px;
    height: 100vh;
    position: fixed;
    left: -500px;
    top: 0;
    background-color: #fff;
    z-index: 999;
    padding: 20px;
    transition: all 0.3s;
}
#quicklink h3 {
    margin-left: -10px;
}
#quicklink div {
    /* position: relative; */
    padding-left: 20px;
    margin-bottom: 20px;
    z-index: 9;
}
#quicklink div#layer_black{
    position: absolute;
    left: 0;
    top: 0;
    margin: 0;
    padding: 0;
    width: 100vw;
    height: 100vh;
    background-color: rgba(0, 0, 0, 0.85);
    display: none;
    transition: all 0.3s;
}

#quicklink a {
    color: #000;
    text-decoration: none;
}
#quicklink a:hover {
    color: #f00;
    text-decoration: underline;
}



/* 480이하 모바일*/

/* @media all and (max-width:480px){

    *{

        margin: 0;

        padding: 0;

    }

    body {

        width: 480px;

    }



    #blank p {

        

    background: -moz-linear-gradient(left,  #ff3232 0%, #fcc22f 17%, #f2fc2f 36%, #3afc2f 56%, #2f41fc 74%, #3c24c1 88%, #e035ff 100%); 

    background: -webkit-linear-gradient(left,  #ff3232 0%,#fcc22f 17%,#f2fc2f 36%,#3afc2f 56%,#2f41fc 74%,#3c24c1 88%,#e035ff 100%); 

    background: linear-gradient(to right,  #ff3232 0%,#fcc22f 17%,#f2fc2f 36%,#3afc2f 56%,#2f41fc 74%,#3c24c1 88%,#e035ff 100%); 

    filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#ff3232', endColorstr='#e035ff',GradientType=1 ); 

    color:white;    

    text-shadow: 1px 1px 1px gray;

    }

    #container,aside {

        display: none;

    }

    footer {

        clear: both;

        position: static;

        color: white;

        text-align: center;

        font-size: 33px;

        border-top: 10px solid orange;

    }

    #wrap {

        width: 100%;

        height: auto;

    }

    h1 {

        margin-top: 0px;

        text-align: center;

        border-top: 10px solid #aaa;

        background-color: #ccc;

    }

    #header {

        position: static;

        border:none;

        box-shadow: none;

        width: 100%;

        height: auto;

    }

    #gnb {

        position: static;

        margin-top: 50px;

        width: 100%;

        height: auto;

    }

    #gnb>li {

        display: block;

        float: none;

        width: 100%;

        height: auto;

        margin-bottom: 50px;

        text-align: center;

        border: none;

    }

    #gnb>li>a {

        border-bottom: 3px solid green;

        display: inline-block;

        width: 50%;

        font-size: 40px;

    }

    .lnb>li {

        margin-bottom: 10px;

    }

    .lnb>li>a:before {

        content: "- ";

    }



} */