:root{--main:#0000fe;--hover:#c10003;--text:#333;--prev:#777;--red:#ed1c24;--border:#d7d7d7;--grey:#f7f7f7;}
.f-s4{font-family: 'Source Serif 4', serif;}.fs-7{font-size:14px;}.fs-8{font-size:12px;}.fw-500{font-weight:500;}.tr-5{transition:all 0.5s ease 0s;}
.cl-m{color:var(--main);}.cl-h{color:var(--hover);}.cl-t{color:var(--text);}.cl-p{color:var(--prev);}
body{font-family:'Helvetica Neue','Open Sans',Roboto,Arial,sans-serif;color:var(--text);}
input,select,textarea{width:100%;height:50px;padding:0;border:1px solid var(--border);border-radius:5px;outline:none;text-indent:1rem;transition:all 0.5s ease 0s;}
input:disabled{cursor: not-allowed;}
input:focus,select:focus,textarea:focus{border:1px solid var(--main);box-shadow:0 0 15px rgb(0 0 0 / 5%);}
input[type=submit]{display:inline-block;width:auto;padding:0 50px;background-color:var(--main);border:0;font-weight:700;text-indent:0;color:#fff;}
input[type=submit]:hover{background-color:var(--hover);}
select{background:#fff url(images/select.png) no-repeat center right 9px;appearance:none;}textarea{display:block;height:106px;padding:1rem;text-indent:0;}
h1,h2,h3,h4,h5,h6{margin-bottom:0;}ul,ol,p{margin:0;padding:0;}a{text-decoration:none;}img{display:block;max-width:100%;height:auto;}.wow{opacity:0;}
.i-hover{overflow: hidden;}.i-hover img{transition: all 0.5s ease 0s;}.i-hover:hover img{transform: scale(1.05);}
.n-hover a{width: 100%; background: linear-gradient(transparent calc(100% - 2px), var(--main) 2px) no-repeat top left / 0% 100%; color: var(--text); transition: all 0.5s ease 0s;}
.n-hover a:hover{background-size: 100% 100%; color: var(--main);}
.f-item{position:relative;margin-bottom:1.5rem;}.f-item span{display:block;margin-bottom:0.25rem;}
.f-item input.error,.f-item select.error,.f-item textarea.error{border-color:var(--red);}
.f-item label.error,.f-item label#emailregistered{position:absolute;top:100%;right:0;font-size:12px;color:var(--red);}

header{height: 107px;}
.header{position: fixed; top: 0; left: 0; width: 100%; padding: 1rem 0; background-color: #fff; z-index: 99990;}
.header-2{padding: 0.5rem 0; box-shadow: 0 0 3px rgb(0 0 0 / 25%);}
.header-2 .logo{width: 90px;}
.logo{width: 125px;}
.logo a span{position: absolute; width: 0; height: 0; overflow: hidden;}

.icon{right: 0; z-index: 1;}
.icon > *{min-width: 40px; text-align: center; line-height: 40px; color: var(--text); cursor: pointer; transition: all 0.5s ease 0s;}
.icon > *:hover{color: var(--main);}
.icon > * i{text-align: center;}

.search{top: calc(100% + 30px); right: 0; left: 0; width: 50%; background-color: #fff; opacity: 0; pointer-events: none; z-index: 2;}
.search input[type='text']{float: left; width: calc(100% - 50px); border: 0;}
.search input[type='submit']{float: right; width: 50px; padding: 0; background: #fff url(images/search.png) no-repeat center;}
.search-2{top: calc(100% + 15px); box-shadow: 0 0 30px 1px rgb(0 0 0 / 25%);  opacity: 1; pointer-events: auto;}

.footer{padding-top: 100px; color: var(--text);}
.footer:before, .footer:after{content: ''; position: absolute; top: 0; left: 0; width: 100%; height: 100px;}
.footer:before{background-color: var(--grey); clip-path: polygon(100% 0, 0 100%, 100% 100%); z-index: -1;}
.footer:after{background-color: #e7e7e7; clip-path: polygon(100% 100%, 0 0, 0 100%); z-index: -2;}
.footer ul{list-style: none;}
.footer li+li{margin-top: 1rem;}
.footer a{color: var(--text); transition: all 0.5s ease 0s;}
.footer a:hover{color: var(--main);}
.footer-title{color: var(--main);}
.footer-title:after{content: ''; display: block; width: 50px; height: 1px; margin-top: 1rem; background-color: var(--main);}
.footer-title-2{padding-top: 42px;}
.footer-top{background-color: var(--grey);}
.footer-info li{position: relative; padding-left: 2rem;}

.footer-info li i{position: absolute; top: 0; left: 0; line-height: 1.5;}
.footer-bottom{border-top: 1px solid var(--border);}

.top{right: 5px; bottom: 15px; display: none; cursor: pointer; z-index: 99990;}
.top i{width: 50px; border: 1px solid var(--main); line-height: 48px; color: var(--main);}
.top i:hover{background-color: var(--main); color: #fff;}

.main-small{letter-spacing: 1px;}
.main-small span{background-color: #fff;}
.main-small span:after{content: ''; position: absolute; bottom: 7px; left: 0; width: calc(100% + 150px); height: 1px; background-color: var(--main); z-index: -1;}

.main-page{list-style: none; display: flex; justify-content: center; margin-bottom: 1.5rem;}
.main-page li+li{margin-left: 10px;}
.main-page li a{display: block; width: 35px; background-color: var(--grey); text-align: center; line-height: 35px; color: var(--text); transition: all 0.5s ease 0s;}
.main-page li a:hover, .main-page li a.active{background: var(--main); color: #fff;}
.main-time{color: #777;}
.main-time i{color: var(--main);}
.main-name{color: var(--main);}
.main-author, .site-description{position: absolute; width: 1px; height: 1px; border: 0; clip: rect(0, 0, 0, 0); word-wrap: normal; overflow: hidden;}

.main-detail h2{padding: 0.75rem 0; font-size: 1.5rem;}
.main-detail h3{padding: 0.75rem 0; font-size: 1.25rem;}
.main-detail ul, .main-detail ol{padding: 0 0 0.75rem 2rem;}
.main-detail img{display: inline-block!important;}  
.main-detail table{width: 100%!important; border-collapse: collapse; border-color: var(--border);}
.main-detail iframe{display: block; margin: 0 auto!important;} 
.main-detail figure{padding: 0 0 1rem;}
.main-detail figure figcaption{font-size: 14px; font-style: italic;}

.main-share > div:nth-child(1){margin-right: 17px; padding: 3px 10px; border: 1px solid var(--border); color: #777;}
.main-share > div:nth-child(1):before
.main-share > div:nth-child(1):after{content: ''; position: absolute; top: 50%; transform: translateY(-50%); left: 100%; width: 0; height: 0; border-style: solid;}
.main-share > div:nth-child(1):before{border-width: 7px 0 7px 9px; border-color: transparent transparent transparent var(--border);}
.main-share > div:nth-child(1):after{border-width: 6px 0 6px 8px; border-color: transparent transparent transparent #fff;}
.main-share > div:nth-child(1) i{padding-right: 10px; border-right: 1px solid var(--border);}
.main-share > div:nth-child(1) b{padding: 0 10px; font-size: 12px; vertical-align: text-bottom;}
.main-share #st-1 .st-btn[data-network='telegram']{display: inline-block!important;}

.main-other{border-left: 5px solid var(--main);}
.main-other:before{content: ''; position: absolute; top: 0; left: 1px; width: 2px; height: 100%; background-color: var(--main);}

.main-toc{top: 15px; border: 1px solid var(--border);}
.main-toc-button{position: absolute; top: 15px; right: 15px; cursor: pointer;}
.main-toc-button i{width: 30px; text-align: center; line-height: 30px; color: var(--text);}
.main-toc-list{margin-top: 15px;}
.main-toc-list ul{list-style: none; margin-top: 10px;}
.main-toc-list ul li{position: relative; padding-left: 20px;}
.main-toc-list ul li:before{content: ''; position: absolute; top: 10px; left: 0; width: 6px; height: 6px; border-radius: 50%; background-color: var(--main);}
.main-toc-list ul li a:hover{color: var(--main)!important;}
.main-toc-list ul ul{padding-left: 20px;}
.main-toc-list ul ul li:before{background-color: transparent; border: 1px solid var(--main);}