.chapter_wrapper,.content_wrapper{background:#e3dfdc}.intro_blur{display:flex;align-items:flex-start;height:calc(100vh - 20px);width:calc(100vw - 20px);margin:10px;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);flex-direction:column;justify-content:center}.chapter_wrapper .intro_number{position:absolute;z-index:0;left:50%;transform:translate(-100%);width:100%;height:100%}.chapter1_wrapper .intro_number{background:url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAARAAAADcCAYAAAC4V/5uAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAAyhpVFh0WE1MOmNvbS5hZG9iZS54bXAAAAAAADw/eHBhY2tldCBiZWdpbj0i77u/IiBpZD0iVzVNME1wQ2VoaUh6cmVTek5UY3prYzlkIj8+IDx4OnhtcG1ldGEgeG1sbnM6eD0iYWRvYmU6bnM6bWV0YS8iIHg6eG1wdGs9IkFkb2JlIFhNUCBDb3JlIDkuMS1jMDAyIDc5LmExY2QxMmY0MSwgMjAyNC8xMS8wOC0xNjowOToyMCAgICAgICAgIj4gPHJkZjpSREYgeG1sbnM6cmRmPSJodHRwOi8vd3d3LnczLm9yZy8xOTk5LzAyLzIyLXJkZi1zeW50YXgtbnMjIj4gPHJkZjpEZXNjcmlwdGlvbiByZGY6YWJvdXQ9IiIgeG1sbnM6eG1wPSJodHRwOi8vbnMuYWRvYmUuY29tL3hhcC8xLjAvIiB4bWxuczp4bXBNTT0iaHR0cDovL25zLmFkb2JlLmNvbS94YXAvMS4wL21tLyIgeG1sbnM6c3RSZWY9Imh0dHA6Ly9ucy5hZG9iZS5jb20veGFwLzEuMC9zVHlwZS9SZXNvdXJjZVJlZiMiIHhtcDpDcmVhdG9yVG9vbD0iQWRvYmUgUGhvdG9zaG9wIDI2LjMgKE1hY2ludG9zaCkiIHhtcE1NOkluc3RhbmNlSUQ9InhtcC5paWQ6QTkzRDhGNUMwMTBCMTFGMDhENDFDQTEwRjZGMkMxNDQiIHhtcE1NOkRvY3VtZW50SUQ9InhtcC5kaWQ6QTkzRDhGNUQwMTBCMTFGMDhENDFDQTEwRjZGMkMxNDQiPiA8eG1wTU06RGVyaXZlZEZyb20gc3RSZWY6aW5zdGFuY2VJRD0ieG1wLmlpZDpBOTNEOEY1QTAxMEIxMUYwOEQ0MUNBMTBGNkYyQzE0NCIgc3RSZWY6ZG9jdW1lbnRJRD0ieG1wLmRpZDpBOTNEOEY1QjAxMEIxMUYwOEQ0MUNBMTBGNkYyQzE0NCIvPiA8L3JkZjpEZXNjcmlwdGlvbj4gPC9yZGY6UkRGPiA8L3g6eG1wbWV0YT4gPD94cGFja2V0IGVuZD0iciI/PhaPUTAAAAv2SURBVHja7J3pkpw2FEYF9Dqrk/d/x9iz90pGlUsFt8fjaZpF39U5VVQ7P2IjkA7fFQKKkC/F+1a9b6X9+U9b/YXt2NoAshhEOUjio60c8N+NMjn8ZkMucAmz922RyL5sZg6FsWht5YT7MbPtlCiQ3fu2td8DYwLOYP6+XSeyL4eZkwPaCKMSSFVRakvbgglk2xJKzRiBT6hSi0OqB3Ftg7B00CHWttUmkleTCcBHFyAE0pGlDbS5085RtNLJwUTyRiqBVMesgkA8pY1z231j9S6pBJr0QQlzxsG6ac0V5Eo7lezft0f7hfxILnmnKpBrSx0FfeaX8/XX+7Z5354Ct4QRCAL5iZXJo6SvfEpMIwsra545HAgkd4HE/bgNuneFpiptrky6USJvHBLXlCmOjxR26NoGAnTvWLeWSh4Cd2y8skq18015Bb1HHr0RS5o4P1JxKNyWrQjEqKyzL+gXgxzXJYeC8sWrQJZcKQdPdnfhv1vgQPkyKGNbLXbqNf1hFNZ2fn8E5kUQiIMEcoc8RmduaY/1NNrySDatjyWQW+ryyYid7xsSkSXpmwzlSAdgRT+YvFS95zDIsQyJzxUOLZBmZSmkUc7ccRhkKBTGzpACifbkTkB6V7RbDoME10HgTuVQAplbR6XuTg9SoUbJKVH2lwP9nffII2muApPaKZcudyrjZwiByDQ+c244T0lyH4QWWfYtkFXw+7pBb5SBSdXUuFYbP2XPfxeTplosArfYU2EdBB8s7VMglC66pQwvcJo+eUhefPvqOJ7flO6dKH1u7U7HXRB+pUUfAqkoXShloBNxwlT6blgfAmFNgZ8YTQk6DnGdx9/BwftwLhVIFVhP4IUy8LT0GMS0/i04eR/Ope8DIX34Igokvumd94f0T7M629WLtC4RCOnDbwp54VD0Ko6r4PT1nZcIhIlTUgj8nqWJw/WnSmYX/H9eX4gcv/a2twFU23/H38K2svXrsXOQQi4X8Dpk8s7frgPg2pkw4serd7Ydzvh/CxPp3H4rR4OAFPJ14S5aW1Z3sroIpHKQPhppbOy3K7X9HZvW8Ww+hF2JD4qVSQR+vmBUtjUpPOuvKXZpvPKtvjjg4ycgnwe6uu5te7b690r4irTOVCClCeL0twp8iqQXgaiuWIylyYMN8DF4sWRyGzSX+Ve23zvBlHD6e/rn8kQQ7Q0GFMhK9Ioay5QfE0nre9D9Hs5aSCCxbOT1BBPENe/ly9tE8mjzZGWNGtlNCsJwApkFvQmjOGgfE9mXFyuhlO5sFIHl7dCTQNTmPl5CemsZNoJJhKd04WKBFGIdaZ/wQI13NrZCx7KZTAXoLJClUC0c13j8SHwfH2w/VaCMgYsEopQ+XgQGZ5wHeRI6pkymQmeBxI6jMnl6CDqLn+J8iMot0mbJPsDZAlEqX57Ejr/ShCoCgU4CUek48Wq+FTv+SvuMQMC1QFQfP38R6ivcjYGzBKIyeXYUTB/tFKJyR4YUAmcJROWVhW/i50Fl/3mFJZydQBiA7H8Dj7TDlwUyDxqPNx/CeW8Row2kEBhJIApsnZwLlXYwkQoIhHYgEEAgtTOBKDzqr7QyGSYSyCxo3L7dOjsfe5H9JIXApwJR6SA7Z+dDpT0IBFwIZO/sfCAQcFPCpE5NApm03/AGc/iwEzSvuyd9TCNFlfUgpBD4UCCUL7QLgUBngcwYaLTrC3ArFxAI7UIggEA8oTIH0nxoGhDIT52iZJBN3jaVj08hkMyZkT6SlchMpP9sE+oTz07G5FJpZxWvKJ4TiJJAqsSO2YuDc79SEkhJAqF9PV6AIDNUBZJDAlGAORAEgkASROUly9yJQSA//VnhEf466NylyEGQlDEIRCqOHjI4L8fArVxAIFnH+1zaiUAQCAkEgfTShyBjgZQMLNpJAgEEgkBIIEAJg0AkUHl+CkggCIQUAimeeJU1IJE6k3ODQEBKIAwsRNkVJlIRiMygIoGQQCCxE88EKm1FIOA+geQkEKW0RQmDQJgXoL0kEOh24rkDQ3svoWAokUAYULQXgYDrBHLM7PwoCQSJIBAGFMIkhQAlDAkEgQAJBIEI9iXITCAFA4r2kkCgq0BKBhTtRSBAAgFKGEAgQAIBShgSSF4gEBIIAqG9CASoWxEIAAJhQJFAgBIGgdBeIIEAkEBAOYEAAAkEHJYwXIgQCAMKAChhgAQCJBAAIIEAAAkERodJVEAgAIBAAAAQCAAgkBzgOSVIXiCceADIIoEw008CARIIAJBAAACBACUbJQxQwgAACcTJFTk3uBCRQBAI7QXwm0BygzkQIIFwRQYggSAQ2ksCgV8EcuQwIBAEApQwMCVciEggCIT2kkCABIJAEAggEARCCQOpC0Tp5BeZnh8SCCTdQWsGFMJEIOBdIJQwlDBACYNAnLWX9EECYUBRspE+wLdAmAMhgQAlDAnEWVtJIJkL5EACoa0IBHJIIEVm50aBA0OJBMLAop0kEHCdQBAICQQS7KR14E5MiuUaCQRkBiMTqbSTBAKdO+mRgUU7SR/gPYFUmZwblXYiEARCAqGdlC9AAkEgJBBAINknECVJkkAQiFxH8J5ClNq3ZxghkEhNGUPKIoHAJR1V5WpCAkmDY2AOBIEIXk28C2RG+QIkEAaYd0FSviAQyQ6BQEggQALpTBH83s5VkiMJBIHIXlW8zoMotWvHEEIgqleVOQmE9AEkkByivsd2Mf8BHwpEJZZ6TSAq7aJ8gd8KpBbZd28TqXH+Q+VNZAgEfjsAVeKptxSiUr7UlDDwmUB2DDjaQ/oA7wLxlkBU2kP6ADcC8fKhqYIEAl4EolTjLpyci0VgAhWcCIQyhnZ8Vr7UDB3wIhBPCYT0AQhkZKqgfzdmFnSegdkybOArAjkKSWQpfh5U9r9GIPBVgShdbVbi50Fl/5EHnCWQjVA7VOdCFkFnST4CgbMEcgg6j22rppC1UPmyYcjAOQJRSiHxSq72kqGZUHLi9i10EohKbI2LsK7Fjr/S/pI+oJNA4p0YlW9/LIPOLd150Jq3QSDQSSBqnedWZD9vhI7pPvABKchEIDOBwXkTtBa/kT7gIoHsgtYj3OuEy4NF0LnzEokTp68MFbhEIJE3sbbdhvTWV5RCJVbDNnD3BXoSSC3WtvuEJJLa/nwV0gf0IhDFhURxnuFbAoO2sv1Qe+jvEHj6FnoSiGIZ0wzev8J0i8yWJg/FL+mRPqBXgahNprbbGSVyNeK/WVjJchc0Pz9Ri14wYOSIfy6xU90ItrVZqRqfmXkcMJpHWazt31H+bs0mMHkKAwnkSnhwNPMRO2vLW49/75WVLB5e9PzC8IAhBFJb57oRb/vcttiOrZVmzfaVVZdl6++YB1/fqInpg49nwyACibyKp5DT0mYZfn0r2NFkWdufC2tvEfx9UvOUZ4YGDCmQ4CSF/Clh5AjpA0YZJK+BB6xIH4BALkwh4Ic30geMKZBXOpwbatIHTFHnk0J8sKEkhSkEEmMvz0toE8XxxGGAKQQSeQysWlTmifMHUwrkQP0sXbrwxjGYVCCRV0oZydLlkcMAKQiEUkYPzhckJRBKGR3i5DefqoSkBNKUMtTUaRMfGOSuCyQpkMhDYD4kVWJK/E7pAikLJPIjaL69zDNHOy/IA5IXSG2dlaXuacD5ACmBtK94LJGeXh4PJEJQE0hTcz8QmyclTphyxwUkBRKJE6rfSSKTJI+41oO3q4O0QILF53+I0aNxNGkjD3AhkHanZp0IsgYE0jlWxzkRVqwOw4ZyEcZiyk8RxBcRxQnW+LX6glPR2zFFzJCFQJqr5c4ksuB0XFSyPFKyQG4CCeH/tSJRIPEzERWn5axjF1MHH8GGSUhpsB5aA2FOWfNH3ky8PHPk76K+FNnXTYqfY3yxwUFZQ7kClDAXlTVx/9bBzweru1Jb0ogJjRWlgEDOvNrGpdgrk0lOcyRHS2N8BRCSRPGqvjCZLBynkp2Jg1WkgEAG3PdFa1P+GHZtpcnW5MEj94BARqZqyST1uzi1lWe7ljQAEEhiQpmd/FYTtPlg2/7kl9cbAAIR5FQqpR2HZjunFIoSONpv3UoWiAIQSOaciqX+YAPImn8FGAA4UlzR0bDongAAAABJRU5ErkJggg==) no-repeat right center}.chapter2_wrapper .intro_number{background:url(../_astro/number2.DqRqko7t.png) no-repeat right center}.chapter3_wrapper .intro_number{background:url(../_astro/number3.DumG9Wwe.png) no-repeat right center}.chapter4_wrapper .intro_number{background:url(../_astro/number4.CXMzXLNh.png) no-repeat right center}.chap3_part2_sub1_txt span{font-weight:700;text-transform:uppercase}.final_wrapper{background-repeat:no-repeat;background-position:center bottom;background-size:100%;z-index:20}.final_wrapper_chapt1{background-image:url(../_astro/bg-final-chap1.Cr-N4GKg.jpg)}.final_wrapper_chapt2{background-image:url(../_astro/bg-final-chap2.SF9P3JlV.jpg)}.final_wrapper_chapt3{background-image:url(../_astro/bg-final-chap3.CqEsCbBP.jpg)}.final_wrapper_chapt4{background-image:url(../_astro/bg-final-chap4.C-BUz8t3.jpg)}.reveal{position:relative;div:before{content:"";position:absolute;z-index:0;width:calc(100% - 20px);height:100%;border:2px solid #fff;top:20px;left:20px;box-shadow:0 0 10px #fff,inset 0 0 10px #fff}div{img{position:relative;width:calc(100% - 20px)}}hr{height:4rem;transform:translate(-50%,-100%)}hr.hr-bottom{transform:translate(-50%,calc(100% + 20px))}.reveal_btn{font-style:normal;display:flex;width:40px;height:40px;justify-content:center;align-items:center;background:#fff;border-radius:100%;box-shadow:0 0 10px #fff;position:absolute}}#reveal_btn1{top:30%;left:10%}#reveal_btn2{top:60%;left:60%}#reveal_btn3{top:10%;left:75%}.reveal-video .plyr{height:100%;width:100%}