@charset "UTF-8";
/* ==========================================================================
   上海奕教科技有限公司 · 站点统一样式（唯一 CSS 文件）
   替代原 bootstrap.min.css + animate.css + layout.min.css 三份外部样式
   外部资源域名统一由 assets/js/config.js 提供，本文件不含任何绝对地址
   ========================================================================== */

/* --------------------- 1 基础 --------------------- */
*,*::before,*::after{box-sizing:border-box}
html{overflow-x:hidden;-webkit-text-size-adjust:100%}
body{margin:0;background:#fff;color:#515769;-webkit-font-smoothing:antialiased;
 font:400 14px/1.42857 "Microsoft YaHei","PingFang SC",Arial,Helvetica,sans-serif}
h1,h2,h3,h4,h5,h6{margin:0 0 15px;font-weight:700;line-height:1.4;color:#515769}
h1{font-size:40px}h2{font-size:30px}h3,h4{font-size:22px}h5{font-size:16px}h6{font-size:14px}
h1>a,h2>a,h3>a,h4>a,h5>a,h6>a{color:#515769}
h1>a:hover,h2>a:hover,h3>a:hover,h4>a:hover,h5>a:hover,h6>a:hover{color:#999caa}
p{margin:0 0 15px;font-size:15px;font-weight:400;line-height:1.4;color:dimgray}
a{color:#a7a7a7;text-decoration:none;outline:0}
a:hover,a:focus{color:#999caa;text-decoration:none}
li,li a,em{font-size:16px;font-weight:500;color:#515769}
span{font-size:14px;font-weight:400;color:#bfc1c7}
img{vertical-align:middle;border:0}
ul{margin:0 0 10px;padding-left:40px}
button{font:inherit;color:inherit}
::selection{color:#fff;background:#17bed2}

/* --------------------- 2 容器与栅格 --------------------- */
.container{max-width:1170px;margin:0 auto;padding-left:15px;padding-right:15px}
.row{display:flex;flex-wrap:wrap;margin-left:-15px;margin-right:-15px}
.row>*{width:100%;padding-left:15px;padding-right:15px}
.row-space-1{margin-left:-1px;margin-right:-1px}
.row-space-1>*{padding-left:1px;padding-right:1px}
[class*=col-]{width:100%}
.col-xs-1{width:8.33333333%}.col-xs-2{width:16.66666667%}.col-xs-3{width:25%}.col-xs-4{width:33.33333333%}
.col-xs-5{width:41.66666667%}.col-xs-6{width:50%}.col-xs-7{width:58.33333333%}.col-xs-8{width:66.66666667%}
.col-xs-9{width:75%}.col-xs-10{width:83.33333333%}.col-xs-11{width:91.66666667%}.col-xs-12{width:100%}
@media (min-width:768px){
.col-sm-1{width:8.33333333%}.col-sm-2{width:16.66666667%}.col-sm-3{width:25%}.col-sm-4{width:33.33333333%}
.col-sm-5{width:41.66666667%}.col-sm-6{width:50%}.col-sm-7{width:58.33333333%}.col-sm-8{width:66.66666667%}
.col-sm-9{width:75%}.col-sm-10{width:83.33333333%}.col-sm-11{width:91.66666667%}.col-sm-12{width:100%}}
@media (min-width:992px){
.col-md-1{width:8.33333333%}.col-md-2{width:16.66666667%}.col-md-3{width:25%}.col-md-4{width:33.33333333%}
.col-md-5{width:41.66666667%}.col-md-6{width:50%}.col-md-7{width:58.33333333%}.col-md-8{width:66.66666667%}
.col-md-9{width:75%}.col-md-10{width:83.33333333%}.col-md-11{width:91.66666667%}.col-md-12{width:100%}}

/* --------------------- 3 通用工具 --------------------- */
.content{padding-top:40px;padding-bottom:40px}
.content-lg{padding-top:20px;padding-bottom:50px}
.overflow-h{overflow:hidden}
.bg-color-sky-light{background:#fff}
.color-white{color:#fff}
.list-unstyled{padding-left:0;list-style:none}
.text-uppercase{text-transform:uppercase}
.img-responsive{display:block;max-width:100%;height:auto}
.full-width{width:100%;height:auto}
.pl-20{padding-left:20px}.pl-30{padding-left:30px}
.margin-b-0{margin-bottom:0!important}.margin-b-2{margin-bottom:2px!important}.margin-b-5{margin-bottom:5px!important}
.margin-b-10{margin-bottom:10px!important}.margin-b-20{margin-bottom:20px!important}.margin-b-30{margin-bottom:30px!important}
.margin-b-40{margin-bottom:40px!important}.margin-b-50{margin-bottom:50px!important}.margin-b-60{margin-bottom:60px!important}
.margin-b-70{margin-bottom:70px!important}.margin-b-80{margin-bottom:80px!important}.margin-b-100{margin-bottom:100px!important}
@media (max-width:992px){
.md-margin-b-0{margin-bottom:0!important}.md-margin-b-5{margin-bottom:5px!important}.md-margin-b-20{margin-bottom:20px!important}
.md-margin-b-30{margin-bottom:30px!important}.md-margin-b-50{margin-bottom:50px!important}}
@media (max-width:768px){
.sm-margin-b-0{margin-bottom:0!important}.sm-margin-b-2{margin-bottom:2px!important}.sm-margin-b-5{margin-bottom:5px!important}
.sm-margin-b-20{margin-bottom:20px!important}.sm-margin-b-30{margin-bottom:30px!important}.sm-margin-b-40{margin-bottom:40px!important}
.sm-margin-b-50{margin-bottom:50px!important}
.margin-b-20{margin-bottom:30px}
.pricing{margin-top:0}
.header .nav-item-child{font-size:13px}
.carousel-title{font-size:60px}
.boxx{padding-top:95px}
.top{display:none}}
@media (max-width:480px){
.xs-margin-b-20{margin-bottom:20px!important}.xs-margin-b-30{margin-bottom:30px!important}.xs-margin-b-50{margin-bottom:50px!important}}

/* --------------------- 4 页头导航 --------------------- */
.header{position:fixed;top:0;right:0;left:0;z-index:1030;box-shadow:0 0 15px rgba(0,0,0,.5)}
.header .navbar{border-bottom:1px solid rgba(255,255,255,.2);transition:all .3s cubic-bezier(.7,1,.7,1)}
.header .container{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;min-height:100px}
.header .logo{display:flex;align-items:center}
.header .logo-img{display:inline-block;width:200px;height:auto}
.header .logo-img-active{display:none}
.header .navbar-nav{display:flex;margin:0;padding:0;list-style:none}
.header .nav-item{position:relative}
.header .nav-item-child{display:block;position:relative;padding:20px;font-size:16px;font-weight:600;line-height:55px;
 color:#fff;transition:all .3s cubic-bezier(.7,1,.7,1)}
.header .nav-item:last-child .nav-item-child{padding-right:0}
.header .nav-item-hover::after{position:absolute;top:45px;left:0;width:9px;height:2px;background:#17bed2;opacity:0;
 content:"";transition:all .4s cubic-bezier(.7,1,.7,1)}
.header .nav-item-hover.active::after,.header .nav-item:hover .nav-item-hover::after{opacity:1}
.header .navbar-toggle{display:block;width:25px;height:25px;padding:0;margin:0;border:0;background:0 0;cursor:pointer}
.header .navbar-toggle .toggle-icon{position:relative;display:inline-block;width:21px;height:1px;background:#515769;transition:all .3s}
.header .navbar-toggle .toggle-icon::before,.header .navbar-toggle .toggle-icon::after{position:absolute;left:0;background:#515769;content:"";transition:all .3s}
.header .navbar-toggle .toggle-icon::before{width:10px;height:1px;bottom:10px}
.header .navbar-toggle .toggle-icon::after{width:16px;height:1px;top:-5px}
.header .navbar-toggle:hover .toggle-icon,.header .navbar-toggle:hover .toggle-icon::before,.header .navbar-toggle:hover .toggle-icon::after{background:#17bed2}
.header .navbar-toggle:hover .toggle-icon::before,.header .navbar-toggle:hover .toggle-icon::after{width:21px}
.header .nav-collapse{margin-top:8px}
@media (min-width:992px){
.header .navbar-toggle{display:none}
.is-scrolled .header .navbar{background:#fff;border-bottom-color:#f0f0f0}
.is-scrolled .header .logo-img-main{display:none}
.is-scrolled .header .logo-img-active{display:inline-block}
.is-scrolled .header .nav-item-child{color:#515769}}
@media (max-width:991px){
.header{background:#fff}
.header .nav-collapse{display:none;width:100%}
.header .nav-collapse.open{display:block}
.header .navbar-nav{flex-direction:column}
.header .logo-img-main{display:none}
.header .logo-img-active{display:inline-block}
.header .nav-item-child{color:#515769;line-height:1.4;padding:12px 12px 12px 15px}
.header .nav-item-hover::after{top:19px}}
@media (max-width:1024px){
.header .logo-img{width:150px}}

/* --------------------- 5 首屏轮播 --------------------- */
.carousel{position:relative}
.carousel-inner{position:relative;width:100%;overflow:hidden;margin-top:-20px}
.carousel-inner>.item{position:relative;display:none;height:100vh;background:linear-gradient(45deg,#95a5a6,#fff)}
.carousel-inner>.item.active{display:block}
.carousel-inner svg{display:block;width:100%;height:auto}
.carousel-indicators{position:absolute;bottom:10px;z-index:15;margin:0;padding-left:0;list-style:none}
.carousel-indicators li{display:inline-block;width:10px;height:10px;margin:1px;background-color:transparent;
 border:1px solid #fff;border-radius:10px;cursor:pointer}
.carousel-indicators li.active{width:12px;height:12px;margin:0;background-color:#fff}
.carousel-centered{position:absolute;top:65%;left:0;right:0;display:flex;justify-content:space-between;
 transform:translate3d(0,-50%,0)}
.carousel-title{font-size:80px;font-weight:700;color:#fff;line-height:1.1;text-transform:uppercase}
.carousel-title.t1{color:#34495e}
.da{font-size:50px}
.zz{color:#fff;font-size:24px;padding-left:0}
.dimg,.dimg2,.dimg3{width:850px;height:478px;background-repeat:no-repeat;background-size:cover;
 box-shadow:15px 15px 15px rgba(0,0,0,.8)}
.dtext{font-size:70px;font-weight:700;color:#16a085;max-height:478px;word-wrap:break-word;writing-mode:vertical-rl}
.dtext span{display:inline-block;width:20px;height:20px;margin:10px 0 10px 21px;border-radius:50%;background-color:#16a085}
.dtext2{font-size:45px;font-weight:700;color:#3498db;margin-top:50px}
@media (max-width:1199px){.dimg,.dimg2,.dimg3{width:700px;height:394px}}
@media (max-width:1024px){.dtext2{font-size:40px}}
@media (max-width:991px){
.carousel-centered{top:60%;flex-direction:column;justify-content:center}
.dtext{font-size:50px;writing-mode:horizontal-tb;margin-top:50px}
.dtext span{width:15px;height:15px;margin:0 10px 10px}
.dimg,.dimg2,.dimg3{width:92vw;max-width:700px;height:calc(92vw * .5625)}}

/* --------------------- 6 视差横幅 --------------------- */
.parallax-window{position:relative;margin-top:-20px;background-position:50% 50%;background-size:cover;background-repeat:no-repeat}
.parallax-content{padding-top:220px;padding-bottom:120px}
.pb-0{padding-bottom:0}

/* --------------------- 7 内容区块 --------------------- */
.service{padding-top:30px;background:#fff;word-wrap:break-word}
.service a{font-size:16px;color:#6d7282}
.pricing{margin-top:50px;padding:70px 45px;background:#f3f3f3;transition:all .8s}
.pricing:hover{box-shadow:0 0 4px #000}
.hh{padding:20px;transition:all .5s}
.hh:hover{box-shadow:0 0 20px #000}
.bb{margin-top:30px}
.dd{margin-top:100px}
.new-top{border-top:2px solid lavender;padding-top:50px}
.fxc{display:flex;justify-content:center}
.qqwh,.ss{background:#f1f1f1}
.xx{color:darkgray}
.loo{margin-top:25px}
.dl{float:right}
.top{width:100%;height:105px;background-color:#525252}
.boxx{display:none}
.margin-b-20 h4,.margin-b-20 p,.margin-b-20 a{padding-left:10px}
.fadeInLeft img{max-width:100%;max-height:100%}
.h3 h3{margin:-20px 0 50px;font-size:30px}
.mylogo{display:flex;justify-content:center;align-items:center}
.mylogo span{margin:5px 0 0 20px;font-size:50px;font-weight:700;color:#515769}
.myxx{display:flex;justify-content:center}
.myxx span{width:60%;padding-right:20px;font-size:15px;line-height:40px;color:darkgray}
.videodiv{width:70%;margin:auto}
.videodiv video{width:100%}

/* --------------------- 8 案例瀑布图 --------------------- */
.masonry-grid{display:flex;flex-wrap:wrap;margin:0 -2px}
.masonry-grid-item{width:100%;padding:0 2px;margin-bottom:4px}
.work{position:relative}
.work-overlay{position:relative;transition:all .5s}
.work-overlay:hover{box-shadow:0 0 20px #000}
.work-content{position:absolute;left:0;bottom:40px;width:100%;padding:10px 0 10px 20px;
 background-color:rgba(0,0,0,.8);transform:translate3d(0,20px,0);transition:all .3s cubic-bezier(.7,1,.7,1)}
.bn h3{color:ghostwhite}
.bn a{color:#efefef}
.bn a:hover{color:darkgray}
@media (min-width:768px){.masonry-grid-item{width:50%}}

/* --------------------- 9 公告 / 新闻 --------------------- */
.nn{background:linear-gradient(45deg,#34495e,#bdc3c7)}
.news p{border-bottom:1px dashed #fff;padding:0 0 10px 10px}
.news a{color:cornsilk}
.news a:hover{color:darkgray}
.news h3{color:cornsilk}
.news img{width:20px;height:20px}

/* --------------------- 10 抗疫助学产品清单 --------------------- */
.cplist{display:flex;justify-content:center;width:100%}
.cplist>div{display:flex;flex-direction:column;align-items:stretch}
.cplist>div>div{display:flex;justify-content:center;align-items:center;height:70px;margin-right:10px;
 font-size:24px;color:#fff;border-radius:10px;background:linear-gradient(to left,#7986CA,#AFD7F7)}
.cplist>div>ul{display:flex;justify-content:space-around;align-items:center;margin:10px 10px 0 0;padding-left:0}
.cplist>div>ul>li{display:flex;justify-content:center;align-items:center;height:350px;color:#fff;border-radius:10px;
 word-wrap:break-word;writing-mode:vertical-lr;box-shadow:3px 3px 3px rgba(0,0,0,.2);
 background:linear-gradient(to bottom,#7986CA,#AFD7F7)}
.cplist .yh{flex:7}
.cplist .hl{flex:3}
.cplist .sp,.cplist .data{flex:2}
.cplist .yh ul li{width:12%}
.cplist .hl ul li{width:30%}
.cplist .sp ul li{width:45%}
.cplist .data ul li{width:95%}
.cplist .hl ul li.wide{width:64%;padding:20px 0}
@media (max-width:480px){.cplist{flex-direction:column}}

/* --------------------- 11 页脚与表单 --------------------- */
.footer{position:relative;margin-top:100px;
 background:radial-gradient(ellipse at bottom,#90a3b8 0%,#3f5166 50%,#1b1f31 100%)}
.footer-seperator{border-top:1px solid #fff;border-bottom:1px solid rgba(255,255,255,.2)}
.footer-list{margin-bottom:0}
.footer-list-item{margin-bottom:25px;color:#cbd3e1}
.footer-list-link{color:#cbd3e1}
.footer-list-link:hover{color:#fff}
.footer-logo{width:120px;height:auto}
.footer .Copyright{display:flex;justify-content:space-between;align-items:center;padding:20px 10px}
.bei{display:flex;align-items:center}
.lu{color:#1cb7dc}
.form-control{width:100%;height:50px;padding-left:15px;font-size:14px;font-weight:400;color:#a6a7aa;
 background:#fafafa;border:0;border-radius:0;box-shadow:none}
.form-control:focus{color:#515769;outline:0}
.form-control::placeholder{color:#a6a7aa}
textarea.form-control{height:auto;padding-top:12px;resize:vertical}
.footer .footer-input{background:rgba(0,0,0,.15)}
.btn-theme{display:inline-block;padding:13px 30px;font-size:13px;font-weight:600;line-height:1.4;text-align:center;
 white-space:nowrap;vertical-align:middle;cursor:pointer;border:0;-webkit-user-select:none;user-select:none}
.btn-base-bg{color:#fff;background:#17a7d2}
.btn-base-bg:hover,.btn-base-bg:focus{color:#fff;background:#63cbd7}

/* --------------------- 12 返回顶部 --------------------- */
.back-to-top{position:fixed;right:10px;bottom:10px;z-index:9;display:inline-block;width:40px;height:40px;padding:5px;
 font-size:11px;font-weight:400;line-height:3;letter-spacing:1px;text-align:center;text-transform:uppercase;color:#fff;
 background:#515769;border-radius:3px;visibility:hidden;opacity:0;transform:translate3d(0,50px,0);
 transition:all .3s cubic-bezier(.7,1,.7,1)}
.back-to-top.show{visibility:visible;opacity:.6;transform:translate3d(0,0,0)}
.back-to-top.show:hover{opacity:1}

/* --------------------- 13 滚动入场动画 --------------------- */
.anim .wow{opacity:0;transition:opacity .3s,transform .3s}
.anim .wow.is-in{opacity:1;transform:none}
.anim .fadeInUp{transform:translate3d(0,100%,0)}
.anim .fadeInLeft{transform:translate3d(-100%,0,0)}
.anim .fadeInRight{transform:translate3d(100%,0,0)}
.anim .zoomIn{transform:scale3d(.3,.3,.3)}
@media (prefers-reduced-motion:reduce){.anim .wow{opacity:1;transform:none}}