@charset "utf-8";
@font-face { font-family: 'PretendardBk'; font-weight: 900; font-display: swap; src: local('Pretendard Black'), url('./fonts/Pretendard-Black.woff2') format('woff2'), url('./fonts/Pretendard-Black.woff') format('woff');}
@font-face { font-family: 'PretendardEB'; font-weight: 800; font-display: swap; src: local('Pretendard ExtraBold'), url('./fonts/Pretendard-ExtraBold.woff2') format('woff2'), url('./fonts/Pretendard-ExtraBold.woff') format('woff');}
@font-face { font-family: 'PretendardB'; font-weight: 700; font-display: swap; src: local('Pretendard Bold'), url('./fonts/Pretendard-Bold.woff2') format('woff2'), url('./fonts/Pretendard-Bold.woff') format('woff');}
@font-face { font-family: 'PretendardSB'; font-weight: 600; font-display: swap; src: local('Pretendard SemiBold'), url('./fonts/Pretendard-SemiBold.woff2') format('woff2'), url('./fonts/Pretendard-SemiBold.woff') format('woff');}
@font-face { font-family: 'PretendardM'; font-weight: 500; font-display: swap; src: local('Pretendard Medium'), url('./fonts/Pretendard-Medium.woff2') format('woff2'), url('./fonts/Pretendard-Medium.woff') format('woff');}
@font-face { font-family: 'PretendardR'; font-weight: 400; font-display: swap; src: local('Pretendard Regular'), url('./fonts/Pretendard-Regular.woff2') format('woff2'), url('./fonts/Pretendard-Regular.woff') format('woff');}
@font-face { font-family: 'PretendardL'; font-weight: 300; font-display: swap; src: local('Pretendard Light'), url('./fonts/Pretendard-Light.woff2') format('woff2'), url('./fonts/Pretendard-Light.woff') format('woff');}
@font-face { font-family: 'PretendardEL'; font-weight: 200; font-display: swap; src: local('Pretendard ExtraLight'), url('./fonts/Pretendard-ExtraLight.woff2') format('woff2'), url('./fonts/Pretendard-ExtraLight.woff') format('woff');}
@font-face { font-family: 'PretendardT'; font-weight: 100; font-display: swap; src: local('Pretendard Thin'), url('./fonts/Pretendard-Thin.woff2') format('woff2'), url('./fonts/Pretendard-Thin.woff') format('woff');}
@font-face { font-family: 'PretendardJP'; font-weight: 400; font-display: swap; src: local('Pretendard JP Regular'), url('./fonts/PretendardJP-Regular.woff2') format('woff2'), url('./fonts/PretendardJP-Regular.woff') format('woff');}

@font-face { font-family: 'GmarketL'; font-display: swap; src: local('GmarketSansLight'), url('./fonts/GmarketSansLight.woff2') format('woff2'), url('./fonts/GmarketSansLight.woff') format('woff');}
@font-face { font-family: 'GmarketM'; font-display: swap; src: local('GmarketSansMedium'), url('./fonts/GmarketSansMedium.woff2') format('woff2'), url('./fonts/GmarketSansMedium.woff') format('woff');}
@font-face { font-family: 'GmarketB'; font-display: swap; src: local('GmarketSansBold'), url('./fonts/GmarketSansBold.woff2') format('woff2'), url('./fonts/GmarketSansBold.woff') format('woff');}



/*=========================================================================================================
* common
=========================================================================================================*/
*, *:after, *:before { margin: 0; padding: 0; box-sizing: border-box; -moz-box-sizing: border-box;-webkit-box-sizing: border-box; -webkit-tap-highlight-color:transparent;}
*:focus { outline: none; }
html, body {margin: 0; padding: 0; width: 100%; height: 100%; font-size: 100%; -webkit-text-size-adjust: none; touch-action:none; }
body { color: #fff; font-family: 'PretendardR',"맑은 고딕", "Malgun Gothic", Arial, sans-serif; font-weight: 100%; --bgColor: #FFE312;}
ul, li, ol {list-style: none; }
fieldset{border: none;}
caption, legend{visibility:hidden; overflow:hidden; width:0; height:0; font-size:0; line-height:0;}
h1, h2, h3, h4, h5 { margin: 0; padding: 0; font-weight: normal;}
a { text-decoration: none; outline:none; select-dummy: expression(this.hideFocus=true);  }
a:link, a:active, a:visited { color: #fff; text-decoration: none; }
img { border: 0; vertical-align:top;}
table{border-collapse: collapse;}
em,address{font-style: normal;}
#skipnavi, .hidden{ width:0; height:0; font-size:0; line-height:0; overflow:hidden; visibility:hidden; }
a{ text-decoration:none; outline: none;  -webkit-tap-highlight-color: rgba(0,0,0,0); -webkit-tap-highlight-color:transparent; select-dummy: expression(this.hideFocus=true);  }
a:visited,a:hover,a:active,a:focus{ background: none; -webkit-tap-highlight-color: rgba(0,0,0,0);-webkit-tap-highlight-color:transparent; }
input, select, textarea {font-family: 'GmarketB'}


body.dv_mob{overflow: hidden; overscroll-behavior-y: none;}
.wrap { position:relative; overflow:hidden; transition: background .3s; height: 100%;}
.wrap.main { background: var(--bgColor);}
.wrap .container{ width: 1280px; height: 720px; position: relative;}
.wrap .bg { display:inline-block; opacity:0; width:100%; height:100%; position:absolute; top:0; left:0; background: rgba(121, 64, 26, .5); transition: all .3s;}
.wrap .bg.on { opacity:1; transition: all .3s;}
.Sprite{display: inline-block; background-repeat: no-repeat; background-position: 0px 0px;}


/* loading guide */
.webload { width:100%; height:100%; position:fixed; top:0; left:0; background: var(--bgColor); z-index:10; display:flex; align-items:center;justify-content:center;}
.webload .infobox p { font-size: 23px; color: #fff; line-height:30px; font-family: 'PretendardB'; text-align:center;}
.webload .infobox .btnbox { margin-top:20px;  text-align:center; }
.webload .infobox .btnbox span { display:inline-block; margin: 0 5px; width:90px; height: 46px; font-size:15px; color: #fff; line-height:46px; background: #000; border-radius: 46px; font-family: 'PretendardB'; cursor: pointer; -webkit-tap-highlight-color: rgba(0,0,0,0);-webkit-tap-highlight-color:transparent;}


/* mousewheel section */
.mousewrap { position: absolute; width: 150px; height: 150px; top: 50%; left: 50%; transform: translate(-50%,-50%); opacity: 0; z-index:1;}
.mousewrap .scrollBox {position: absolute; width: 150px; height: 150px; top: 50%; left: 50%; transform: translate(-50%,-50%); background-color: rgba(0, 0, 0, 0.76);border-radius: 50%;}
.mousewrap .mouseIco { position: relative; width: 32px; height: 48px; border-radius: 30px; border: 2px solid #fff; top: 39px; left: 50%; transform: translateX(-50%); }
.mousewrap .mouseIco::before,
.mousewrap .mouseIco::after { content: ''; position: absolute; top: 0; left: 0; right: 0; bottom: 0; margin: auto; }
.mousewrap .mouseIco::before { background-color: rgba(255, 255, 255, 0.3); top: -10px; width: 2px; height: 14px;}
.mousewrap .scrollmnt {position: absolute; width: 150px; bottom: 39px; left: 50%; transform: translateX(-50%); opacity: 1; font-size: 14px; letter-spacing: -0.025em; text-align: center;}
.mousewrap.on { opacity:1;}
.mousewrap.on .scrollBox { animation: fadeani .5s forwards , fadeani .3s 2.8s forwards reverse; }
.mousewrap.on .mouseIco::after { background-color: #fff; top: -18px; width: 2px; height: 6px; animation: wheel1 1.5s cubic-bezier(0.165, 0.44, 0.64, 1) infinite; animation-direction: alternate;}
@keyframes wheel1 { 0% {transform: translateY(0);} 35%{transform: translateY(8px);} 65%{transform: translateY(0);} 100% {transform: translateY(8px);} }
@keyframes wheel2 { 0% {transform: translateY(0)scaleY(1);} 20% { transform: translateY(8px) scaleY(1.2); } 80% { transform: translateY(0px) scaleY(1.2); } 100% { transform: translateY(8px) scaleY(1); } } 
@keyframes fadeani { 0% { opacity: 0; } 100% { opacity: 1;} }


/* chulPop */
.chulPop { opacity:0; width:100%; height:100%; position:fixed; top:0; left:0; background: rgba(0,0,0,0.6); z-index:0; display:flex; align-items:center;justify-content:center;  pointer-events:none; transition: opacity .3s .2s, z-index .3s;}
.chulPop .inbox { opacity:0; width:506px; height:340px; border-radius:20px; background: #fff; overflow: hidden; transform: scale(0); transition: opacity .3s, transform .3s; }
.chulPop .inbox .topbox { padding: 26px 40px;}
.chulPop .inbox .topbox h3 { margin-bottom:17px; font-size:30px; color: #000; letter-spacing:-0.075em; font-family: 'GmarketB'; font-weight:normal; }
.chulPop .inbox .topbox li { margin-top:16px; padding-left:30px; font-size:18px; color: #000; line-height:26px; letter-spacing: -0.025em; font-family: 'PretendardR'; text-align:justify; position:relative;}
.chulPop .inbox .topbox li:first-child { margin-top:0; }
.chulPop .inbox .topbox li:before { content:''; display:inline-block; top:3px; left:0; width:20px; height:20px; border-radius:100%; position:Absolute; background: #6a7485 url('../images/chulPop_ico.png') no-repeat center;}
.chulPop .inbox .btbtn { height:62px; font-size:18px; color: #fff; line-height: 62px; font-family: 'PretendardB'; text-align:center; background: #6a7485; cursor: pointer;} 
.chulPop.on { opacity:1; z-index:10; pointer-events:auto; transition: opacity .3s; }
.chulPop.on .inbox { opacity:1; transform: scale(1); }




/*=========================================================================================================
* mainPage
=========================================================================================================*/
.mainPage { height: 100%; position:relative; } 

/* main header */
.mainPage .header { opacity:0; width:100%; position:absolute; top:0; left:0; z-index:-1; pointer-events:none; transition:z-index 0s .5s, opacity .3s;}
.mainPage .header .leftbox { padding-left:12px; min-width: 300px; position:absolute; top:40px; left:40px;}
.mainPage .header .leftbox h1 { margin-bottom: 38px; font-size: 22px; line-height:28px; font-family: 'PretendardB'; position:relative; white-space:nowrap;}
.mainPage .header .leftbox .ichim { display:inline-block; width:0; vertical-align:top; overflow:hidden; xtransition: all .3s ease-out;}
.mainPage .header .leftbox .silgn { display:inline-block; text-indent: 0px; width:40px; vertical-align:top; overflow:hidden; xtransition: all .3s ease-out;}
.mainPage .header .leftbox h1:after {content:''; display:block; width:100%; height:100%; position:absolute; top:0; right:0; background: #ffa300; transition: width .2s ease-out;}
.mainPage .header .leftbox h2 { height: 230px; font-size: 110px; line-height:115px; letter-spacing: -0.025em; font-family: 'PretendardBK'; transition: height .3s; margin-left: -4px;}
.mainPage .header .leftbox h2 span { display:block; height: 115px; overflow:hidden; position:relative; }
.mainPage .header .leftbox h2 em { display:inline-block; position:relative; top:116px; }
.mainPage .header .leftbox h2.on { transition: height .3s;}
.mainPage .header .leftbox h2.on em { top:0; transition: top .8s cubic-bezier(.94,-0.01,.6,1.01);}
.mainPage .header .leftbox h2.on span:nth-child(2) em { transition-delay: .1s;}
.mainPage .header .leftbox h2.on span:nth-child(3) em { transition-delay: .2s;}
.mainPage .header .leftbox ul { margin-top:36px; }
.mainPage .header .leftbox li { font-size:22px; line-height:34px; letter-spacing: -0.025em; font-family: 'PretendardEB'; white-space:nowrap; position:relative; overflow:hidden; transition: opacity .3s;}
.mainPage .header .leftbox li:after {content:''; display:block; width:100%; height:100%; position:absolute; top:0; right:0; background: #ffa300; transition: width .2s ease-out;}
.mainPage .header .leftbox li > span { padding-right: 16px; display:inline-block; cursor: pointer; position:relative; top:34px;}
.mainPage .header .leftbox li > span:after {content:''; display:inline-block; margin-top:-6px; width:8px; height:12px; background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='7.071' height='11.607'%3E%3Cg fill='%23000'%3E%3Cpath d='m1.415 0 5.657 5.657L5.658 7.07 0 1.414z' data-name='Rectangle 6'/%3E%3Cpath d='m0 10.193 5.657-5.657L7.07 5.95l-5.657 5.657z' data-name='Rectangle 7'/%3E%3C/g%3E%3C/svg%3E") no-repeat center / contain; position:absolute; top:50%; right:0; transition: background .3s;}

.dv_pc .mainPage .header .leftbox li > span:hover:after { animation: .3s cubic-bezier(.17,.67,.7,1.55) 0s 1 hd_leftbox_ul_ico;}
.mainPage .header .leftbox ul.on li > span { top:0px; transition: top .3s; }
.mainPage .header .leftbox ul.on li:nth-child(2) > span { transition-delay: .1s;}
.mainPage .header .leftbox p { font-size: 16px; line-height:34px; letter-spacing: -0.025em; font-family: 'PretendardSB'; position:Absolute; top:604px; left:12px;}
.mainPage .header .leftbox p:after {content:''; display:block; width: calc(100% + 12px); height:calc(100% + 4px); position:absolute; top:-2px; right:-10px; background: #ffa300; transition: width .2s ease-out;z-index:1;}
.mainPage .header .leftbox p .numinfo { opacity:0; transition: opacity .3s; }
.mainPage .header .leftbox p .dwnBtn { opacity:0; pointer-events:none; position:absolute; top:5px; left:0; transition: opacity .3s; z-index:-1;}
.mainPage .header .leftbox p .dwnBtn.on {opacity:1; pointer-events:auto;z-index:1; }
.mainPage .header .leftbox p .jsbtn { font-size:0; white-space: nowrap; position:absolute; top:0px; left:0; cursor: pointer; }
.mainPage .header .leftbox p .jsbtn em{display: inline-block; width: 24px; height: 24px; transition: background .3s; background: no-repeat center/100% auto; vertical-align: top;}
.mainPage .header .leftbox p .jsbtn span{display: inline-block; margin-left:5px; font-size: 16px; line-height:26px; vertical-align: top;}
.mainPage .header .leftbox p .js-download em{background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24'%3E%3Cg fill='none' stroke='%23000'%3E%3Cg stroke-width='2'%3E%3Ccircle cx='12' cy='12' r='12' stroke='none'/%3E%3Ccircle cx='12' cy='12' r='11'/%3E%3C/g%3E%3Cg stroke-width='1.4'%3E%3Cpath stroke-linejoin='round' d='M9.191 11.192 12 14.001l2.807-2.809'/%3E%3Cpath d='M12 13.684V5.822'/%3E%3Cpath d='M7.505 16.176h8.986'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");}
.mainPage .header .leftbox p .js-download:hover em{background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24'%3E%3Cg%3E%3Cg fill='%23000' stroke='%23000' stroke-width='2'%3E%3Ccircle cx='12' cy='12' r='12' stroke='none'/%3E%3Ccircle cx='12' cy='12' r='11' fill='none'/%3E%3C/g%3E%3Cg fill='none' stroke='%23fff' stroke-width='1.4'%3E%3Cpath stroke-linejoin='round' d='M9.191 11.192 12 14.001l2.807-2.809'/%3E%3Cpath d='M12 13.684V5.822'/%3E%3Cpath d='M7.505 16.176h8.986'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");}
.mainPage .header .leftbox p .js-update em{background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24'%3E%3Cg fill='none' stroke='%23000' stroke-width='2'%3E%3Ccircle cx='12' cy='12' r='12' stroke='none'/%3E%3Ccircle cx='12' cy='12' r='11'/%3E%3C/g%3E%3Cpath fill='%23000' d='M11.999 7.035a4.982 4.982 0 0 1 3.536 1.49h-2.046v.993h2.552a.923.923 0 0 0 .922-.922V6.042h-.992v1.529A5.949 5.949 0 0 0 6.041 12h.993a4.97 4.97 0 0 1 4.965-4.965'/%3E%3Cpath fill='%23000' d='M16.964 12a4.958 4.958 0 0 1-8.5 3.475h2.046v-.993H7.955a.923.923 0 0 0-.922.922v2.554h.993V16.43a5.949 5.949 0 0 0 9.93-4.43Z'/%3E%3C/svg%3E");}
.mainPage .header .leftbox p .js-update:hover em{background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24'%3E%3Cg fill='%23000' stroke='%23000' stroke-width='2'%3E%3Ccircle cx='12' cy='12' r='12' stroke='none'/%3E%3Ccircle cx='12' cy='12' r='11' fill='none'/%3E%3C/g%3E%3Cpath fill='%23fff' d='M11.999 7.035a4.982 4.982 0 0 1 3.536 1.49h-2.046v.993h2.552a.923.923 0 0 0 .922-.922V6.042h-.992v1.529A5.949 5.949 0 0 0 6.041 12h.993a4.97 4.97 0 0 1 4.965-4.965'/%3E%3Cpath fill='%23fff' d='M16.964 12a4.958 4.958 0 0 1-8.5 3.475h2.046v-.993H7.955a.923.923 0 0 0-.922.922v2.554h.993V16.43a5.949 5.949 0 0 0 9.93-4.43Z'/%3E%3C/svg%3E");}
/*.mainPage.lesson_5 .header .leftbox h2,
.mainPage.lesson_6 .header .leftbox h2{height: 174px;}*/

.mainPage .header .leftbox p .num { transition: width .3s; display:inline-block; height:20px; line-height:20px; text-align:left; position:Relative; overflow:hidden; vertical-align:middle; white-space:nowrap;}
.mainPage .header .leftbox p .num em { display:block; position:Relative; top:0px; }
.mainPage .header .leftbox p.on .num em { top:-20px; transition: top .3s;}
.mainPage .header.on { opacity:1; pointer-events:auto; z-index:10; transition:z-index 0s;}
.mainPage .header.on .leftbox h1:after,
.mainPage .header.on .leftbox p:after,
.mainPage .header.on .leftbox li:after { width:0; transition: width .5s .1s ease-out; }
.mainPage .header.on .leftbox li:nth-child(1):after { transition-delay: .2s;}
.mainPage .header.on .leftbox li:nth-child(2):after { transition-delay: .3s;}
.mainPage .header.on .leftbox p:after { transition-delay: .4s;}
.mainPage{color: #000; transition: color .3s;}
.mainPage.opList{color: #fff;}
.mainPage.opList .leftbox li { opacity:.2;}
.mainPage.opList .leftbox li.on { opacity:1;}
.mainPage.opList .header .leftbox li > span:after {background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='7.071' height='11.607'%3E%3Cg fill='%23fff'%3E%3Cpath d='m1.415 0 5.657 5.657L5.658 7.07 0 1.414z' data-name='Rectangle 6'/%3E%3Cpath d='m0 10.193 5.657-5.657L7.07 5.95l-5.657 5.657z' data-name='Rectangle 7'/%3E%3C/g%3E%3C/svg%3E") no-repeat center;}
/*.mainPage.opList .header .leftbox p .numinfo { opacity:1; }
.mainPage.opList .header .leftbox p .dwnBtn { opacity:0; }
.mainPage.opList .header .leftbox p .dwnBtn .jsbtn { pointer-events:none;  }*/
.mainPage.opList.ebk .header .leftbox p .dwnBtn { opacity:0; }
.mainPage.opList.ebk .header .leftbox p .dwnBtn .jsbtn { pointer-events:none; }
.mainPage.opList .header .leftbox p .js-download em{background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24'%3E%3Cg fill='none' stroke='%23fff'%3E%3Cg stroke-width='2'%3E%3Ccircle cx='12' cy='12' r='12' stroke='none'/%3E%3Ccircle cx='12' cy='12' r='11'/%3E%3C/g%3E%3Cg stroke-width='1.4'%3E%3Cpath stroke-linejoin='round' d='M9.191 11.192 12 14.001l2.807-2.809'/%3E%3Cpath d='M12 13.684V5.822'/%3E%3Cpath d='M7.505 16.176h8.986'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");}
.mainPage.opList .header .leftbox p .js-download:hover em{background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24'%3E%3Cg%3E%3Cg fill='%23fff' stroke='%23fff' stroke-width='2'%3E%3Ccircle cx='12' cy='12' r='12' stroke='none'/%3E%3Ccircle cx='12' cy='12' r='11' fill='none'/%3E%3C/g%3E%3Cg fill='none' stroke='%23000' stroke-width='1.4'%3E%3Cpath stroke-linejoin='round' d='M9.191 11.192 12 14.001l2.807-2.809'/%3E%3Cpath d='M12 13.684V5.822'/%3E%3Cpath d='M7.505 16.176h8.986'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");}
.mainPage.opList .header .leftbox p .js-update em{background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24'%3E%3Cg fill='none' stroke='%23fff' stroke-width='2'%3E%3Ccircle cx='12' cy='12' r='12' stroke='none'/%3E%3Ccircle cx='12' cy='12' r='11'/%3E%3C/g%3E%3Cpath fill='%23fff' d='M11.999 7.035a4.982 4.982 0 0 1 3.536 1.49h-2.046v.993h2.552a.923.923 0 0 0 .922-.922V6.042h-.992v1.529A5.949 5.949 0 0 0 6.041 12h.993a4.97 4.97 0 0 1 4.965-4.965'/%3E%3Cpath fill='%23fff' d='M16.964 12a4.958 4.958 0 0 1-8.5 3.475h2.046v-.993H7.955a.923.923 0 0 0-.922.922v2.554h.993V16.43a5.949 5.949 0 0 0 9.93-4.43Z'/%3E%3C/svg%3E");}
.mainPage.opList .header .leftbox p .js-update:hover em{background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24'%3E%3Cg fill='%23fff' stroke='%23fff' stroke-width='2'%3E%3Ccircle cx='12' cy='12' r='12' stroke='none'/%3E%3Ccircle cx='12' cy='12' r='11' fill='none'/%3E%3C/g%3E%3Cpath fill='%23000' d='M11.999 7.035a4.982 4.982 0 0 1 3.536 1.49h-2.046v.993h2.552a.923.923 0 0 0 .922-.922V6.042h-.992v1.529A5.949 5.949 0 0 0 6.041 12h.993a4.97 4.97 0 0 1 4.965-4.965'/%3E%3Cpath fill='%23000' d='M16.964 12a4.958 4.958 0 0 1-8.5 3.475h2.046v-.993H7.955a.923.923 0 0 0-.922.922v2.554h.993V16.43a5.949 5.949 0 0 0 9.93-4.43Z'/%3E%3C/svg%3E");}

@keyframes hd_leftbox_ul_ico {0% { opacity:0; right:15px; }100% { opacity:1; right:0; }}

.mainPage .header .topmenu { font-size:0; position:absolute; top:40px; right:46px; z-index:1; transition: opacity .3s .3s, z-index .3s .6s;}
.mainPage .header .top_left_menu {display:inline-block; vertical-align:top;}
.mainPage .header .top_left_menu li { display:inline-block; padding: 0 9px; font-size:16px; line-height:30px; font-family: 'PretendardB'; vertical-align:top; cursor: pointer; position:relative;}
.mainPage .header .top_left_menu li:first-child { xmargin-right: 32px;}
.mainPage .header .top_left_menu li:last-child { margin-right: 42px;}
.mainPage .header .top_left_menu li:after {content:''; display:block; width:100%; height:100%; position:absolute; top:0; right:0; transition: width .2s ease-out;}
.mainPage .header .top_left_menu li span { display:inline-block; position:Relative; letter-spacing: -0.05em;}
.mainPage .header .top_left_menu li span em { display:inline-block; width:0; height:2px; background: #000; position:absolute; bottom:-1px; right:0; transition: width .3s;}
.dv_pc .mainPage .header .top_left_menu li:hover span em { width:100%; right:auto; left:0;}
.mainPage .header .top_right_menu { display:inline-block; margin-right:14px; padding-left:20px; position: relative; }
.mainPage .header .top_right_menu .classbtn {margin-left:-20px; padding-left:22px; background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='37.414' height='37.414'%3E%3Cg fill='none' stroke='%23000' stroke-width='4'%3E%3Cpath d='m16 16 20 20' data-name='선 1'/%3E%3Cpath d='m5 5 6 6' data-name='선 2'/%3E%3Cpath d='m23 12 6-6' data-name='선 3'/%3E%3Cpath d='m6 29 6-6' data-name='선 4'/%3E%3Cpath d='M0 17h7' data-name='선 5'/%3E%3Cpath d='M17 7V0' data-name='선 6'/%3E%3C/g%3E%3C/svg%3E") no-repeat left 4px / 18px 18px; vertical-align:top; cursor: pointer; position:relative; }
.mainPage .header .top_right_menu .classbtn span { display:inline-block; padding-right:18px; font-size:16px; line-height:30px; font-family: 'PretendardB'; position:Relative; letter-spacing: -0.05em;}
.mainPage .header .top_right_menu .classbtn span:after { content:''; display:inline-block; margin-top:-5px; width:12px; height:8px; background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='20.617' height='13.137'%3E%3Cpath fill='none' stroke='%23000' stroke-width='4' d='m1.414 1.414 8.894 8.894 8.894-8.894'/%3E%3C/svg%3E") no-repeat center / contain; transform: rotate(0); position:absolute; top:50%; right:0; transition: transform .3s;}
.mainPage .header .top_right_menu .classbox { height:0; overflow: hidden; transition: all .1s ease-out;}
.mainPage .header .top_right_menu .classbox ul { opacity:0; transform: translate(0, -100%); transition: all .3s ease-out;}
.mainPage .header .top_right_menu .classbox li span { opacity: .3; display:inline-block; font-size:16px; line-height:28px; font-family: 'PretendardEB'; cursor: pointer; transition: opacity .3s; }
.dv_pc .mainPage .header .top_right_menu .classbox li span:hover { opacity:1;}
.dv_pc .mainPage .header .top_right_menu:hover .classbtn span:after { transform: rotate(-180deg); transition: transform .3s; }
.dv_pc .mainPage .header .top_right_menu:hover .classbox { height: 100%; }
.dv_pc .mainPage .header .top_right_menu:hover .classbox ul { opacity:1; transform: translate(0, 0); transition: all .3s ease-out; }
.dv_mob .mainPage .header .top_right_menu.active .classbtn span:after{transform: rotate(-180deg); transition: transform .3s;}
.dv_mob .mainPage .header .top_right_menu.active .classbox { height: 100%; }
.dv_mob .mainPage .header .top_right_menu.active .classbox ul { opacity:1; transform: translate(0, 0); transition: all .3s ease-out; }
.mainPage .header .top_right_menu .classbtn:after {content:''; display:block; width:100%; height:100%; position:absolute; top:0; right:0; transition: width .2s ease-out;}
.mainPage .header .top_right_save { display:inline-block; position: relative; vertical-align:top;}
.mainPage .header .top_right_save .classbtn {padding-left:22px; padding-right:2px; font-size:16px; line-height:30px; font-family: 'PretendardB'; background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='34' height='36.5'%3E%3Cg fill='none' stroke='%23000' stroke-width='4'%3E%3Cg data-name='사각형 2'%3E%3Cpath stroke='none' d='M0 0h25v28H0z'/%3E%3Cpath d='M2 2h21v24H2z'/%3E%3C/g%3E%3Cg data-name='사각형 3'%3E%3Cpath stroke='none' d='M21 6h13v28H21z'/%3E%3Cpath d='M23 8h9v24h-9z'/%3E%3C/g%3E%3Cpath d='M2 36.5v-10' data-name='선 7'/%3E%3C/g%3E%3C/svg%3E") no-repeat 1px 4px / 17px 18px; vertical-align:top; cursor: pointer; position:relative; }
.mainPage .header .top_right_save .classbtn em {display:inline-block; width:0; height:2px; background: #000; position:absolute; bottom:-1px; right:0; transition: width .3s;}
.dv_pc .mainPage .header .top_right_save .classbtn:hover em {width:100%; right:auto; left:0;}
.mainPage .header .top_right_save:after {content:''; display:block; width:100%; height:100%; position:absolute; top:0; right:0; transition: width .2s ease-out;}
.mainPage .header.on .top_left_menu li:after { width:0; transition: width .3s ease-out; }
.mainPage .header.on .top_left_menu li:nth-child(1):after { transition-duration: .3s; transition-delay: .3s;}
.mainPage .header.on .top_left_menu li:nth-child(2):after { transition-delay: .4s;}
.mainPage .header.on .top_left_menu li:nth-child(3):after { transition-delay: .5s;}
.mainPage .header.on .top_left_menu li:nth-child(4):after { transition-delay: .6s;}
.mainPage .header.on .top_left_menu li:nth-child(5):after { transition-delay: .7s;}
.mainPage .header.on .top_right_menu .classbtn:after {width:0; transition: width .3s .8s ease-out; }
.mainPage .header.on .top_right_save:after {width:0; transition: width .3s 1s ease-out; }
.mainPage.opList .header .topmenu { z-index: -1; opacity:0; pointer-events:none; transition: opacity .3s, z-index .3s; }

.mainPage .header .navbox { opacity:0; padding-right: 4px; font-size:0; position:Absolute; top:362px; transform: translateY(-50%); right:0px; transition: opacity .5s 1.5s, padding .5s 1.5s; }
.mainPage .header .navbox span { display:inline-block;}
.mainPage .header .navbox > span { opacity: .2; width:20px; height:30px; cursor: pointer; transition: all .2s; position:relative; opacity: 0; pointer-events: none;}
.mainPage .header .navbox.on .nbtn{opacity: .3; pointer-events: auto;}
.mainPage .header .navbox > span.nbtn.off{pointer-events: none;}
.mainPage .header .navbox > span:after,
.mainPage .header .navbox > span:before { content:''; display:inline-block; position:Absolute; transition: all .2s; }
.mainPage .header .navbox > span:after {width:12px; height:12px; border:4px solid #000; left:4px;transform: rotate(45deg);}
.mainPage .header .navbox > span:before { width:2px; height:0px; border-left: 2px solid #000; left:9px;}
.mainPage.opList .header .navbox > span:after {border:4px solid #fff;}
.mainPage.opList .header .navbox > span:before {border-left: 2px solid #fff;}

.mainPage .header .navbox > span.prev:after { border-right:0; border-bottom:0; top:15px; }
.mainPage .header .navbox > span.prev:before { top:18px; }
.mainPage .header .navbox > span.next:after { border-left:0; border-top:0; bottom:15px; }
.mainPage .header .navbox > span.next:before { bottom:18px; }
.dv_pc .mainPage .header .navbox.on > span:hover { opacity: 1;}
.dv_pc .mainPage .header .navbox > span:hover:before { height:20px; transition: height .2s; }
.dv_pc .mainPage .header .navbox > span.prev:hover:after { top: 7px;}
.dv_pc .mainPage .header .navbox > span.prev:hover:before { top: 7px;}
.dv_pc .mainPage .header .navbox > span.next:hover:after { bottom: 7px;}
.dv_pc .mainPage .header .navbox > span.next:hover:before { bottom: 7px;}

.mainPage .header .navbox ul { margin: 6px 0; width:20px; }
.mainPage .header .navbox li{transition: margin .3s .3s;}
.mainPage .header .navbox li:first-child{margin-top: 0px;}
.mainPage .header .navbox li > div { position:relative;}
.mainPage .header .navbox li .dae{height: 20px;}
.mainPage .header .navbox li .jung{height: 0px; xoverflow: hidden; transition: height .3s;}
.mainPage .header .navbox li em { display:inline-block; width:20px; height:100%; opacity:.3; transition: opacity .3s; cursor: pointer;}
.mainPage .header .navbox li em:after { content:''; display:inline-block; width:6px; background: #000; position: absolute; top:50%; left:50%; transform: translate(-50%, -50%); transition: background .3s;}
.mainPage.opList .header .navbox li em:after{background: #fff;}
.mainPage .header .navbox li .dae em:after{ height:6px; border-radius:100%;}
.mainPage .header .navbox li .jung em:after{ left: 30px; width: 4px; height: 2px; border-radius: 3px; opacity: 0; transition: opacity .3s, left .3s, width .2s;}
.mainPage .header .navbox li .jung:nth-of-type(2) em:after{transition: width .2s;}
.mainPage .header .navbox li .jung:nth-of-type(3) em:after{transition: width .2s;}
.mainPage .header .navbox li .jung:nth-of-type(4) em:after{transition: width .2s;}
.mainPage .header .navbox li span {opacity:0; font-size:16px; line-height: 20px; font-family: 'PretendardSB'; position:absolute; top:50%; transform: translateY(-50%); left: -42px; white-space:nowrap; transition: all .3s; cursor: pointer; padding-right: 5px;}
.mainPage .header .navbox li .jung span{left: -45px; font-size: 14px; pointer-events: none;}
.mainPage .header .navbox li.on .dae em{opacity: 1;}
.mainPage:not(.opList) .header .navbox li.on .dae span{opacity: 1; left: -56px;}
.mainPage .header .navbox li.on .jung.on em{opacity: 1;}
.mainPage .header .navbox li.on .jung.on em:after{width: 8px;}


.mainPage.opList .header .navbox li{transition: margin .3s;}
.mainPage.opList .header .navbox li .jung{height: 20px; transition: height .3s;}
.mainPage.opList .header .navbox li .jung em:after{left: 50%; opacity: 1;}
.mainPage.opList .header .navbox li .jung:nth-of-type(2) em:after{transition: left .3s .2s, width .2s, opacity .3s .2s;}
.mainPage.opList .header .navbox li .jung:nth-of-type(3) em:after{transition: left .3s .25s, width .2s, opacity .3s .25s;}
.mainPage.opList .header .navbox li .jung:nth-of-type(4) em:after{transition: left .3s .3s, width .2s, opacity .3s .3s;}

.mainPage.opList .header .navbox li:nth-of-type(5) .jung{display: none;}


.mainPage .header.on .navbox { opacity:1; padding: 0 40px; transition: opacity .5s 1.5s, padding .5s 1.5s;}

.mainPage .header .navbox li.on .dae span{opacity: 0;}
.dv_pc .mainPage .header .navbox li .dae.over span {opacity: 1; left: -56px;}
.dv_pc .mainPage .header .navbox li div.over em{opacity: 1;}
.mainPage.opList .header .navbox li .jung span{pointer-events: auto;}
.mainPage.opList .header .navbox li.on .jung.on span,
.dv_pc .mainPage.opList .header .navbox li .jung.over span {opacity: 1; left: -50px;}
.dv_pc .mainPage.opList .header .navbox li .jung.over em:after{width: 8px;}


.mainPage .header .cursorbox { opacity:0; width:894px; height:488px; position:absolute; top:116px; right:116px; transition: opacity .5s 1.8s;}
.mainPage .header .cursorbox .roundC { width:121px; height:121px; position:absolute; top:4px; right:110px; pointer-events: none;}
.mainPage .header .cursorbox .roundC span { display:inline-block; width:100%; height:100%; }
.mainPage .header .cursorbox .roundC .circle_num { position:absolute; top:0; left:0; background: url('../images/circle_num1.svg') no-repeat center / 50% 50%; transition: background-image .3s;}
.mainPage .header .cursorbox .roundC .circle_txt { background: url('../images/circle_1.svg') no-repeat center / contain; transition: background .3s;}
.mainPage .header .cursorbox .roundC .circle_txt { animation: 15s linear 0s infinite intro_circle_ani; transition: background .3s;}
.mainPage .header.on .cursorbox { opacity:1;  transition: opacity .3s .3s, z-index .3s .6s;}
.mainPage.opList .header .cursorbox { z-index: -1; opacity:0; pointer-events:none; transition: opacity .3s, z-index .3s;}
@keyframes intro_circle_ani {100% { transform: rotate(360deg);}}

.mainPage .header .info { opacity: 0; padding: 3px 4px; font-size:0; position:Absolute; top:642px; right:0px; cursor: pointer;}
.mainPage .header .info span { display:inline-block; width:40px; height: 40px; background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='40' height='40'%3E%3Cpath fill='rgba(0,0,0,0)' d='M0 0h40v40H0z' data-name='Rectangle 9'/%3E%3Cg fill='none' stroke='%23000' stroke-width='2' data-name='Ellipse 8' transform='translate(8 7.5)'%3E%3Ccircle cx='12' cy='12' r='12' stroke='none'/%3E%3Ccircle cx='12' cy='12' r='11'/%3E%3C/g%3E%3Ctext fill='%23000' data-name='%3F' font-family='Pretendard-SemiBold, Pretendard' font-size='16' font-weight='600' transform='translate(16 25.5)'%3E%3Ctspan x='0' y='0'%3E%3F%3C/tspan%3E%3C/text%3E%3C/svg%3E") no-repeat center/contain;}
.dv_pc .mainPage .header .info:hover span { animation: blankinfo .3s cubic-bezier(.53,0,.58,1.46); }
.mainPage .header .infotxt { opacity: 0;width:100%; font-size:14px; line-height:28px; letter-spacing: -0.075em; text-align:center; font-family: 'GmarketL'; position:Absolute; top:720px; left:0px; transition: all .5s 1.6s;}
.mainPage .header .infotxt .chulBtn { display:inline-block; margin-top:-2px; margin-left: 6px; width:56px; height:20px; font-size: 12px; color: #ec8a74; line-height:22px; border-radius:3px; background: #fff; font-family: 'GmarketM'; vertical-align:middle; cursor: pointer; }
.mainPage .header .stop_sound { display:inline-block; opacity:0; width:40px; height:40px; position:absolute; top:645px; right:88px; z-index:10; cursor: pointer; background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='40' height='40'%3E%3Cg data-name='btn_sound off'%3E%3Cpath fill='rgba(0,0,0,0)' d='M0 0h40v40H0z' data-name='Rectangle 10'/%3E%3Cg fill='none' data-name='Path 2'%3E%3Cpath d='m23.464 9.5-8.226 4.928H9.464v10.144h5.774l8.226 4.928Z'/%3E%3Cpath fill='rgba(0,0,0,0.3)' d='m21.464 13.03-5.673 3.398h-4.327v6.144h4.327l5.673 3.399V13.03m2-3.53v20l-8.227-4.928H9.464V14.428h5.773L23.464 9.5Z'/%3E%3C/g%3E%3Cpath fill='none' stroke='rgba(0,0,0,0.3)' stroke-width='2' d='m31 19.5-4 4 4-4-4-4 4 4 4-4-4 4 4 4Z' data-name='Union 3'/%3E%3C/g%3E%3C/svg%3E") no-repeat center; transition: opacity .5s 2s;}
.mainPage .header .stop_sound.off { background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='40' height='40'%3E%3Cg data-name='btn_sound on'%3E%3Cpath fill='rgba(0,0,0,0)' d='M0 0h40v40H0z' data-name='Rectangle 10'/%3E%3Cg fill='none' data-name='Path 2'%3E%3Cpath d='m23.464 9.5-8.226 4.928H9.464v10.144h5.774l8.226 4.928Z'/%3E%3Cpath fill='%23000' d='m21.464 13.03-5.673 3.398h-4.327v6.144h4.327l5.673 3.399V13.03m2-3.53v20l-8.227-4.928H9.464V14.428h5.773L23.464 9.5Z'/%3E%3C/g%3E%3Cpath fill='%23000' d='M28.443 25.358A7.98 7.98 0 0 0 31 19.5a7.98 7.98 0 0 0-2.557-5.858l1.487-1.352A9.97 9.97 0 0 1 33 19.5a9.97 9.97 0 0 1-3.07 7.209Zm-2.979-2.708A4 4 0 0 0 27 19.5a3.994 3.994 0 0 0-1.536-3.149l1.5-1.36A5.986 5.986 0 0 1 29 19.5a5.986 5.986 0 0 1-2.041 4.509Z' data-name='Intersection 1'/%3E%3C/g%3E%3C/svg%3E") no-repeat center;}
.mainPage .header.on .info { opacity:1; right: 35px; transition: all .5s .5s;}
.mainPage .header.on .infotxt { opacity:.5; top:690px; transition: opacity .3s, z-index .3s .3s;}
.mainPage .header.on .stop_sound { opacity: 1; transition: opacity .3s .5s;} 
.mainPage.opList .header .info, 
.mainPage.opList .header .infotxt { z-index: -1; opacity:0; pointer-events:none; transition: opacity .3s, z-index .3s; }
.mainPage.opList .header .stop_sound {opacity:0; pointer-events:none; transition: opacity .3s; }
.main .mainPage .header .leftbox h1:after,
.main .mainPage .header .leftbox li:after,
.main .mainPage .header .leftbox p:after,
.main .mainPage .header .top_left_menu li:after,
.main .mainPage .header .top_right_menu .classbtn:after,
.main .mainPage .header .top_right_save:after {background: var(--bgColor);}
@keyframes blankinfo {50% {transform: scale(1.2)}100% {transform: scale(1)}}

.mainPage.lesson_1 .header .cursorbox .roundC .circle_num {background-image: url('../images/circle_num1.svg'); background-size: 27px 42px;}
.mainPage.lesson_2 .header .cursorbox .roundC .circle_num {background-image: url('../images/circle_num2.svg'); background-size: 31px 43px;}
.mainPage.lesson_3 .header .cursorbox .roundC .circle_num {background-image: url('../images/circle_num3.svg'); background-size: 29px 43px;}
.mainPage.lesson_4 .header .cursorbox .roundC .circle_num {background-image: url('../images/circle_num4.svg'); background-size: 36px 43px;}
.mainPage.lesson_5 .header .cursorbox .roundC .circle_num {background-image: url('../images/circle_num5.svg'); background-size: 28px 42px;}
.mainPage.lesson_6 .header .cursorbox .roundC .circle_num {background-image: url('../images/circle_num6.svg'); background-size: 31px 43px;}
.mainPage.lesson_7 .header .cursorbox .roundC .circle_num {background-image: url('../images/circle_num7.svg'); background-size: 28px 42px;}
.mainPage.lesson_8 .header .cursorbox .roundC .circle_num {background-image: url('../images/circle_num8.svg'); background-size: 29px 43px;}
.mainPage.lesson_1 .header .leftbox p .pgn { width:74px; }
.mainPage.lesson_1 .header .leftbox p .aln { width:64px; }
.mainPage.lesson_2 .header .leftbox p .pgn { width:76px; }
.mainPage.lesson_2 .header .leftbox p .aln { width:65px; }
.mainPage.lesson_3 .header .leftbox p .pgn { width:82px; }
.mainPage.lesson_3 .header .leftbox p .aln { width:82px; }
.mainPage.lesson_4 .header .leftbox p .pgn { width:92px; }
.mainPage.lesson_4 .header .leftbox p .aln { width:58px; }
.mainPage .header .leftbox .numinfo.off { display:none; }

/* main pageSlide */
.mainPage .pageSlide { width:100%; height:100%; position:relative; z-index:-1; opacity:0; pointer-events:none; background: #FFE312; transition:z-index .3s .3s; overflow: hidden;}
.mainPage .pageSlide .slide { width:100%; height:100%; position:absolute; top:0; left:0; z-index:-1; opacity:0; pointer-events:none; transition: opacity .3s, z-index .3s .3s, filter .3s; transform: scale(1.3);}
.mainPage .pageSlide .slide.on { z-index:1; opacity:1; pointer-events:auto; transform: scale(1); transition: opacity .3s, z-index .3s .3s, transform .3s, filter .3s;}
.mainPage .pageSlide .slide.on .bgmov video{transition: transform .3s;}

.mainPage .pageSlide .slide.off{transform: scale(0.7); transition: opacity .3s, z-index .3s .3s, filter .3s, transform .3s;}
.mainPage .pageSlide .bgmov { width:100%; height:100%; position:absolute; top:0; left:0; transition: opacity .3s, z-index .3s .3s; display:flex;align-items:center; justify-content:center;}
.mainPage .pageSlide .bgmov.ichim {z-index:-1; opacity:0; pointer-events:none;}
.mainPage .pageSlide .bgmov video { transition:transform .3s; width:100%; height:100%;}
.mainPage .pageSlide:after { content:''; display:inline-block; opacity:0; width:1276px; height:716px; position:Absolute; top:0; left:0; transition: all .3s; z-index:1; }
.mainPage .pageSlide.on { z-index:1; opacity:1; pointer-events:auto; transition:z-index .3s; }
.mainPage.opList .pageSlide .slide .bgmov video { transform: scale(0.9); transition: transform .3s;}

.mainPage.opList .pageSlide .slide{filter: blur(10px); transition: opacity .3s, z-index .3s .3s, filter .3s, transform .3s;}
.mainPage.opList .pageSlide:after { opacity:1;}
.mainPage .pageList .case .box{display: none;}
.mainPage .pageList .case .box.on{display: block;}

.mainPage .pageSlide .bgmov img { transition:transform .3s; width:100%; height:100%;}
.mainPage .pageSlide .slide.on .bgmov img{width: 100%; transition: transform .3s;}
.mainPage.opList .pageSlide .slide .bgmov img { transform: scale(0.9); transition: transform .3s;}

/* main pageList */
.mainPage .pageList { width:100%; height:100%; position:absolute; top:0; left:0; z-index:-1; opacity:0; background: rgba(121, 64, 26, .5); pointer-events:none; transition: opacity .3s, z-index .0s .3s;}
.mainPage .pageList .pglist { padding-right: 76px; position:absolute; width:730px; height:100%; right:70px; }
.mainPage .pageList .in { height:100%; overflow-y: auto; -ms-overflow-style: none; scrollbar-width: none;}
.mainPage .pageList .in.lock{overflow: hidden; pointer-events: none;}
.mainPage .pageList .in::-webkit-scrollbar{ display:none; }
.mainPage .pageList ul { display: block; padding: 110px 0; opacity: 0; transition: opacity .3s; pointer-events: none; min-height: 720px;}
.mainPage .pageList ul.on{opacity: 1; transition: none; pointer-events: auto;}
.mainPage .pageList ul.prev li{transform: translateY(-50px); opacity: 0;}
.mainPage .pageList ul.prev.on li{transform: translateY(0px); opacity: 1; transition-property: transform, opacity; transition-duration: .34s, .3s;}
.mainPage .pageList ul.prev.on li:nth-of-type(1){transition-delay: 1.32s, 1.36s;}
.mainPage .pageList ul.prev.on li:nth-of-type(2){transition-delay: 1.24s, 1.28s;}
.mainPage .pageList ul.prev.on li:nth-of-type(3){transition-delay: 1.16s, 1.2s;}
.mainPage .pageList ul.prev.on li:nth-of-type(4){transition-delay: 1.08s, 1.12s;}
.mainPage .pageList ul.prev.on li:nth-of-type(5){transition-delay: 1s, 1.04s;}
.mainPage .pageList ul.prev.on li:nth-of-type(6){transition-delay: .92s, .96s;}
.mainPage .pageList ul.prev.on li:nth-of-type(7){transition-delay: .84s, .88s;}
.mainPage .pageList ul.prev.on li:nth-of-type(8){transition-delay: .76s, .8s;}
.mainPage .pageList ul.prev.on li:nth-of-type(9){transition-delay: .68s, .72s;}
.mainPage .pageList ul.prev.on li:nth-of-type(10){transition-delay: .6s, .64s;}
.mainPage .pageList ul.prev.on li:nth-of-type(11){transition-delay: .52s, .56s;}
.mainPage .pageList ul.prev.on li:nth-of-type(12){transition-delay: .44s, .48s;}
.mainPage .pageList ul.prev.on li:nth-of-type(13){transition-delay: .36s, .4s;}
.mainPage .pageList ul.next li{transform: translateY(50px); opacity: 0;}
.mainPage .pageList ul.next.on li{transform: translateY(0px); opacity: 1; transition-property: transform, opacity; transition-duration: .34s, .3s; transition-timing-function: ease-in-out;}
.mainPage .pageList ul.next.on li:nth-of-type(1){transition-delay: .6s, .64s;}
.mainPage .pageList ul.next.on li:nth-of-type(2){transition-delay: .68s, .72s;}
.mainPage .pageList ul.next.on li:nth-of-type(3){transition-delay: .76s, .8s;}
.mainPage .pageList ul.next.on li:nth-of-type(4){transition-delay: .84s, .88s;}
.mainPage .pageList ul.next.on li:nth-of-type(5){transition-delay: .92s, .96s;}
.mainPage .pageList ul.next.on li:nth-of-type(6){transition-delay: 1s, 1.04s;}
.mainPage .pageList ul.next.on li:nth-of-type(7){transition-delay: 1.08s, 1.12s;}
.mainPage .pageList ul.next.on li:nth-of-type(8){transition-delay: 1.16s, 1.2s;}
.mainPage .pageList ul.next.on li:nth-of-type(9){transition-delay: 1.24s, 1.28s;}
.mainPage .pageList ul.next.on li:nth-of-type(10){transition-delay: 1.32s, 1.36s;}
.mainPage .pageList ul.next.on li:nth-of-type(11){transition-delay: 1.4s, 1.44s;}
.mainPage .pageList ul.next.on li:nth-of-type(12){transition-delay: 1.48s, 1.52s;}
.mainPage .pageList ul.next.on li:nth-of-type(13){transition-delay: 1.56s, 1.6s;}
.mainPage .pageList li { margin-left: 20px; padding-left: 78px; line-height:66px; font-family: 'PretendardSB'; position:relative; white-space:nowrap; width: 100%; height: 66px;}
.mainPage .pageList li:first-child{padding-left: 45px;}
.mainPage .pageList li strong{position: relative; display: inline-block; padding-right: 20px; opacity: .2; font-size:44px; cursor: pointer;}
.mainPage .pageList li strong:after{content: ''; width: 1px; height: 25px; background: #fff; position: absolute; right: 8px; top: 20px;}
.mainPage .pageList li > span { display:inline-block; opacity: .2; padding-right:1px; height:20px; font-size: 14px; line-height:20px; letter-spacing:0; text-align:right; font-family: 'PretendardB'; position:absolute; top:14px; right:592px; overflow:hidden;}
.mainPage .pageList li:first-child > span{right: 626px;}
.mainPage .pageList li > span em { display:block; position:relative; top:0; transition: top .3s; }
.mainPage .pageList li > span em .pan { font-size:14px;}
.mainPage .pageList li p { display:inline-block; opacity: .2; cursor: pointer; font-size:44px;}
.mainPage .pageList li p > .ad { display:none; }
.mainPage.ebk .pageList li p > .hid { display:none; }
.mainPage.ebk .pageList li p > .ad { display:inline-block; }
.dv_pc .mainPage .pageList li .txtCase:hover strong,
.dv_pc .mainPage .pageList li .txtCase:hover p,
.dv_pc .mainPage .pageList li .txtCase:hover + span{opacity: 1; transition: opacity .3s;}
.dv_pc .mainPage .pageList li p:hover,
.dv_pc .mainPage .pageList li p:hover + span {opacity: 1; transition: opacity .3s;}
.mainPage .pageList li.long {-webkit-mask-image: linear-gradient(to right,black 94%, transparent 96%, transparent); mask-image: linear-gradient(to right, black 94%, transparent 96%, transaprent);}
.mainPage .pageList li.long p {overflow: hidden; vertical-align: top;}
.mainPage .pageList li.long p em {position: relative; display: inline-block; padding-right: 20px; pointer-events: none;}
.mainPage .pageList li.long p > span {position: relative; display: inline-block; overflow: hidden; vertical-align: top; pointer-events: none;}
.dv_pc .mainPage .pageList li.long .txtCase:hover p > span{animation: long_text 7s linear infinite;}
.dv_pc .mainPage .pageList li.long p:hover > span {animation: long_text 7s linear infinite;}
.mainPage .pageList .pglist_close { width:30px; height:30px; position:absolute; top:40px; right:38px; background: url('../images/pageList_pglist_close.png') no-repeat center; cursor: pointer;}
.dv_pc .mainPage .pageList .pglist_close:hover {  transform: rotate(180deg); transition: transform .3s;}
.mainPage .pageList .arwC {display:inline-block; width:30px; height:30px; border-radius:100%; background: #000 url('../images/pageList_arwC.png') no-repeat center; position:absolute; top:0; right:0; opacity: 0; pointer-events: none; transform: translateX(-50px); transition: opacity .3s, transform .3s;}
.mainPage .pageList .arwC.on{opacity: 1; transform: translateX(0); transition: opacity .5s, transform .5s;}
.mainPage.smt .pageList li > span em { top:-20px;}
.mainPage.opList .pageList {z-index:2; opacity:1; pointer-events:auto; transition: opacity .3s, z-index .0s;}
@keyframes long_text {0% { left: 0; }100% { left: -50%; }}
.dv_mob .mainPage .pageList .pglist .in{overflow: hidden;}
.dv_mob	.mainPage .pageList .pglist .in > div{xmax-height: 1200px; overflow: hidden;}
.dv_mob .mainPage .pageList ul{height: 720px; overflow-y: scroll; overflow-x: hidden; xpadding: 0px; }
.dv_mob .mainPage .pageList ul::-webkit-scrollbar{ display:none; }
.dv_mob .mainPage .pageList ul.on{padding: 102px 0;} 

.mainPage .pageList .les_1 li:first-child{xpadding-left: 76px;}
.mainPage .pageList .les_1 li:first-child > span{xright: 590px;}

/*=========================================================================================================
* 진도저장
=========================================================================================================*/
.Progress{position:absolute;top:0;left:0;width:100%;height:100%;display:none;color:#111;font-family:"NotosansR",sans-serif;font-size:16px;z-index:30}
.Progress.On{display:block}
.Progress__Background{position:fixed;top:0;left:0;width:100%;height:100%;background-color:#000;opacity:.6}
.Progress__Inner{position:fixed;margin: -273px 0 0 -283px; top:50%;left:50%;width:565px;height:545px;border-radius:4px;background-color:#fff}
.Progress__Line{width:515px;height:1px;margin:0 auto;background-color:#000;opacity:.15}
.Progress__Line.Light{opacity:.05}
.Progress__Title{height:68px;margin:0 auto;line-height:80px;font-family:"NanumSquareB",sans-serif;font-size:21px;text-align:center}
.Progress__Table{width:515px;margin:0 auto}
.Progress__Table__Row{height:50px;display:flex;align-items:stretch}
.Progress__Table__Cell{display:flex;align-items:center;justify-content:center}
.Progress__Table__Cell.Checkbox{flex:0 0 50px}
.Progress__Table__Cell.Class{flex:0 0 100px}
.Progress__Table__Cell.Page{flex:0 0 200px}
.Progress__Table__Cell.Page>*{cursor:pointer}
.Progress__Table__Cell.Date{flex:0 0 165px}
.Progress__Table__Body{height:356px;overflow:auto}
.Progress__Ordering{-webkit-transform:rotate(90deg);-ms-transform:rotate(90deg);transform:rotate(90deg);width:20px;height:20px;background:url('../images/ordering.svg') center/6px auto no-repeat;cursor:pointer}
.Progress__Ordering.Reversed{-webkit-transform:rotate(-90deg);-ms-transform:rotate(-90deg);transform:rotate(-90deg)}
.Progress__Textbook{width:52px;height:15px;margin-top:0;border-radius:2px;color:#fff;font-family:"NotoSansB",sans-serif;font-size:11px;text-align:center;line-height:15px}
.Progress__Textbook.Main{background-color:#121d84}
.Progress__Textbook.Main::before{content:"과학"}
.Progress__Textbook.Sub{background-color:#41aef3}
.Progress__Textbook.Sub::before{content:"실험관찰"}
.Progress__Checkbox{position:relative;box-sizing:border-box;width:16px;height:16px;border-radius:4px;border:1px solid #ccd6e7;background-color:#f3f6f9;cursor:pointer}
.Progress__Checkbox::before{-webkit-transform:rotate(45deg);-ms-transform:rotate(45deg);transform:rotate(45deg);content:"";display:none;position:absolute;top:1px;left:4px;width:5px;height:8px;border-right:1px solid #5971a8;border-bottom:1px solid #5971a8}
.Progress__Checkbox.Selected::before{display:block}
.Progress__Page{width:38px;padding-left:8px}
.Progress__Bottom{position:relative}
.Progress__Button{box-sizing:border-box;position:absolute;top:15px;right:24px;width:70px;height:29px;border:1px solid #ccd6e7;border-radius:4px;background-color:#f3f6f9;color:#6e7b8e;font-family:"NanumSquareRoundB",sans-serif;font-size:12px;line-height:29px;text-align:center;cursor:pointer}
.Progress__Button.Big{right:auto;left:24px;width:120px}
.Progress__Close{position:absolute;top:33px;left:523px;width:16px;height:16px;background:url('../images/close.png') center/contain no-repeat;cursor:pointer}


/* 업데이트 / 다운로드 */
.update-popup-container {position: absolute; top: 0; left: 0; width: 100%; height: 100%; z-index: 30; display: flex; justify-content: center; align-items: center; }
.update-popup-container.Hidden{display: none;}
.update-popup-background {position: absolute; top: 0; left: 0; width: 100%; height: 100%; background-color: rgba(0, 0, 0, 0.6); }
.update-popup-content {position: absolute; width: 400px; background-color: #fff; display: flex; flex-direction: column; border-radius: 15px; overflow: hidden; }
.update-popup-content__title { width: 100%;  display: flex; justify-content: center; margin: 20px 0 0 0; white-space: pre-line; text-align: center; font-size: 20px; font-family: "PretendardEB"; color: #01BDFC;}
.update-popup-content__progress-box {margin: 20px 14px 32px 14px; border-radius: 5px; border: 1px solid #01BDFC; overflow: hidden; }
.update-popup-content__progress {appearance: none; display: flex; align-items: center; width: 370px; height: 50px; color: #01BDFC; }
.update-popup-content__progress::-webkit-progress-bar { background-color: #eee; }
.update-popup-content__progress::-webkit-progress-value { background-color: #01BDFC; }
.update-popup-content__progress:before { content: attr(data-label);  position: absolute; font-size: 13px; color: #fff; margin-left: 14px; }
.update-popup-content__update-info { border: 1px #B3B3B3 solid; height: 153px; margin: 14px 14px 17px 14px; padding: 12px; white-space: pre-wrap; overflow: auto; font-size: 13px; color: #000; line-height: 1.4em;}
.update-popup-content__button-box { width: 100%; height: 46px; display: flex; justify-content: center;}
.update-popup-content__button-box div { flex-grow: 1; flex-basis: 0; cursor: pointer; font-size: 18px; display: flex; justify-content: center; align-items: center; font-family: "PretendardEB"; }
.update-popup-content__button-box div.update { color: #fff; background-color: #01BDFC;}
.update-popup-content__button-box div.cancel { color: #999999; background-color: #e6e6e6;}
.update-popup-content__button-box div.confirm { color: #999999; background-color: #e6e6e6;}
::-webkit-scrollbar {width: 4px;}
::-webkit-scrollbar-track { background-color: transparent;}
::-webkit-scrollbar-thumb {border-radius: 2px; background-color: #B3B3B3;}
::-webkit-scrollbar-button { width: 0; height: 0;}

.update-popup-container.require-download .update-popup-content__title{margin: 50px 0 44px 0;}
.update-popup-container.require-download .update-popup-content__progress-box{display: none;}
.update-popup-container.require-download .update-popup-content__update-info{display: none;}
.update-popup-container.require-download .update-popup-content__button-box div.update{display: none;}
.update-popup-container.require-download .update-popup-content__button-box div.cancel{display: none;}