/* ----------------------------------- tools style ----------------------------------- */
* {
    margin: 0;
    padding: 0;
}
ol,ul {
    list-style: none;
}
a {
    color: #900b09;
    text-decoration: none;
}
a:hover {
    color: #ff0000;
    text-decoration: none;
}

.fl { float: left; }
.fr { float: right; }
.clearfix::after { content: ""; display: block; clear: both; }

/* ------- 顶部广告位 ------- */
#topbanner {position: relative; width: 100%;min-width: 1140px;max-width: 2560px;height: 40px;overflow: hidden;background:#f9f9f9;cursor: pointer;}
#topbanner img {display: block;height: 100%;position: absolute;top: 0;left: 50%;transform: translateX(-50%);-ms-transform: translateX(-50%);-webkit-transform: translateX(-50%);}
#topbanner .close-topbox {position: absolute;top: 10px;right: 18%;cursor: pointer;}
#topbanner .close-topbox i {font-size: 18px;color: #fff;opacity: .9;}

/* ------- 右侧悬浮标广告位 ------- */
#rfbanner { width: 115px; height: 130px; position: fixed; bottom: 380px; right: 6px; z-index: 1000;} 
#rfbanner img { max-width: 100%;-webkit-animation: pulse 1.6s infinite both;animation: pulse 1.6s infinite both;}
#rfbanner .close-rfbox { position: absolute; top: -20px; right: 6px; cursor: pointer; }
#rfbanner .close-rfbox i { font-size: 16px; color: #333; }
#rfbanner .close-rfbox i:hover { color: #1a1a1a;}
@media (max-width:1024px) {
	#rfbanner {display: none !important;}
}


/* header */
.sig-header {
    width: 100%;
    /* min-width: 1129px; */
    background-color: #EFEFEF;
    border-bottom: 1px solid #DDD;
}
.sig-header:hover {
    background-color: #F3F3F3;
}
#header_index {
    /* width: 1129px; */
    margin: 0 auto;
    height: 80px;
    line-height: 80px;
}
#header_index .logo {
    float: left;
    height: 80px;
    display: flex;
    align-items: center;
}
#header_index .logo img {
    /* display: block; */
    width: 228px;
    /* margin-top: 5px; */
   
}
#header-l {
    float: left;
    /* width: 70%; */
    height: 80px;
}
#header-r {
    float: right;
    width: 30%;
    height: 80px;
}
.header-menu {
    float: left;
    margin: 0 0 0 10px;
}
.header-menu li {
    float: left;
    position: relative;
    margin: 0 5px;
    line-height: inherit;
}
.header-menu li a {
    display: inline;
    padding: 8px 3px;
    font-size: 16px;
    color: #666;
}
.header-menu li a:hover,.header-menu li a.active {
    color: #fe6a00;
}
.header-menu-vip { position: relative; }
.hot-icon {
	position: absolute;
    top: -4px;
	right: -24px;
	z-index: 1;
	padding: 2px 4px;
    border-radius: 4px;
	background-color: #ff3c1a;
    color: #fff;
	font-size: 12px;
	font-style: normal;
	line-height: 1;
	-webkit-transform: scale(.8);
       -moz-transform: scale(.8);
        -ms-transform: scale(.8);
         -o-transform: scale(.8);
            transform: scale(.8);
}
.hot-icon:before {
	content: "";
	position: absolute;
    bottom: -9px;
    left: 15%;
    border: 5px solid transparent;
    border-top-color: #ff3c1a;
}
.vip-sicon {
    display: inline-block;
    width: 24px;
    height: 24px;
    vertical-align: middle;
    background-size: 24px 24px;
}
.vip-sicon0 {
    background-image: url("//7nsts.w3cschool.cn/images/w3c/vip-sicon0.png");
}
.vip-sicon1 {
    background-image: url("//7nsts.w3cschool.cn/images/w3c/vip-sicon1.png");
}
.vip-sicon2 {
    background-image: url("//7nsts.w3cschool.cn/images/w3c/vip-sicon2.png");
}
.down-icon1 {
    display: inline-block;
    width: 10px;
    height: 10px;
    margin-left: 5px;
}
.angle-down-icon {
    background: url("//7nsts.w3cschool.cn/yimages/icon-angle-down1.png") no-repeat scroll 0% 0%;
}

.header-app {
    position: relative;
    float: right;
    height: 25px;
    line-height: 25px;
    padding-left: 25px;
    background: url("//7nsts.w3cschool.cn/images/w3c/header-app.png?t=20171221") no-repeat 0px 0px;
    font-size: 15px;
    color: #333;
    margin: 28px 15px 0 0;
}
.header-app:hover {
    color: #AE4141;
}
.qrcode-box {
    display: none;
    top: 30px;
    left: -98px;
    width: 362px;
    padding: 15px 10px;
}
.header-app:hover .qrcode-box {
    display: block;
}
.qrcode-img {
    display: inline-block;
    float: left;
    width: 170px;
    text-align: center;
}
.qrcode-img p {
    font-size: 15px;
    color: #333;
    padding: 0;
    margin: 0;
}
.qrcode-box .j {
    left: 40%;
}
.sig-box {
    float: right;
}
.sig-box a {
    font-size: 15px;
    color: #333;
}
.sig-box a:hover {
    text-decoration: none;
    color: #900b09;
}
.sig-box-info .sig-line {
    padding: 0 4px;
}

/* footer */
.s-footer {
    position: relative;
    width: 100%;
    /* min-width: 1140px; */
}
.s-footer-bottom {
    margin: 0px auto;
    /* width: 1140px; */
    text-align: center;
    line-height: 35px;
    font-size: 13px;
    color: #666;
    padding: 20px 0;
}
.s-footer-bottom p {
	font-size: 13px;
	color: #666;
}
.s-footer-bottom p a {
	color: #666;
}
.s-footer-bottom p span {
	margin: 0 5px;
}
.s-footer-bottom .beian {
    background: url(//7n.w3cschool.cn/statics/images/w3c/beianicon.png) no-repeat 0 0;
    width: 16px;
    height: 16px;
    vertical-align: middle;
    background-size: cover;
    display: inline-block;
    margin-right: 4px;
    margin-top: -4px;
}

/* layout */
div#wrapper, .wrapper{
	/* width: 1129px; */
	margin: 0 auto;
}
.container-fluid h1 {
	margin-top: 40px;
	margin-bottom: 20px;
	font-size: 24px;
	text-align: center;
}
.cm-s-default span.cm-header {
    color: #900b09 !important;
}
.btn-primary,.btn-primary:active, .btn-primary.active {
	background-color: #AE4141;
	background-image: none;
	border-color: #AE4141;
}
.btn-primary:hover {
	background-color: #900b09;
	border-color: #900b09;
}


/* ------- 新版头部侧边信息栏 ------- */
.h-right a { color: inherit; -webkit-transition: color .24s ease; transition: color .24s ease; }
.h-right a:hover { color: #fe6a00; }

/* 下拉菜单 */
.dropdown { position: absolute; top: 100%; right: 0; z-index: 99; overflow: hidden; background-color: transparent; transition: height 0.24s ease; }
.dropdown-inner { position: relative; margin: 12px 4px 4px; background-color: #fff; box-shadow: 0 1px 4px #aaa; border-radius: 4px; }
.dropdown-inner::before { content: ""; position: absolute; top: -6px; right: 50%; z-index: 1; width: 16px; height: 16px; background-color: #fff; box-shadow: -2px -2px 4px #ddd;
    -webkit-transform: translateX(50%) rotate(45deg);
       -moz-transform: translateX(50%) rotate(45deg);
        -ms-transform: translateX(50%) rotate(45deg);
            transform: translateX(50%) rotate(45deg);
}
.dropdown-content { position: relative; z-index: 2; overflow: hidden; background-color: #fff; border-radius: 4px; }

/* 头部右侧 */
.h-right { margin-top: 22px; font-size: 14px; line-height: 36px; }
.h-right .link { padding: 0 8px; }

.h-right .mobile { position: relative; margin-right: 24px; }
.h-right .mobile .link { display: block; }
.h-right .mobile .i-icon { margin-right: 3px; font-size: 22px; color: #fe6a00; }

.h-right .mobile .dropdown { width: 328px; height: 0; right: -116px; }
.h-right .mobile:hover .dropdown { height: 204px; }
.h-right .mobile .dropdown-content { padding: 0 10px; }
.h-right .mobile .dropdown-content .qrcode { margin: 8px 0 12px; }
.h-right .mobile .dropdown-content .qrcode > p { margin: 4px 0 0; padding: 0; font-size: 14px; line-height: 1; }


/* 登录后 */
.site-userInfo .i-icon { color: #777; }
.site-userInfo .notice .i-icon { font-size: 18px; }
.site-userInfo .notice .badge { margin-left: 4px; padding: 0 6px; font-size: 12px; line-height: 1; color: #fff; border-radius: 8px; background-color: #999; }
.site-userInfo .notice .badge.danger { background-color: #fe6a00; }

.site-userInfo .user { position: relative; cursor: pointer; }
.site-userInfo .user-avatar > .img { border-radius: 50%; }
.site-userInfo .user-vip { padding: 0; }

.site-userInfo .user .dropdown { width: 104px; height: 0; }
.site-userInfo .user:hover .dropdown { height: 144px; }
.site-userInfo .user .dropdown-content a { display: block; line-height: 32px; transition: background-color .24s ease, color .24s ease; }
.site-userInfo .user .dropdown-content .i-icon { margin-right: 6px; font-size: 14px; vertical-align: baseline; -webkit-transition: color .24s ease; transition: color .24s ease; }
.site-userInfo .user .dropdown-content a:hover { background-color: #f5f5f5; }
.site-userInfo .user .dropdown-content a:hover .i-icon { color: #fe6a00; }

/* header2 */
.header-with-search .h-right .mobile { margin-right: 0; }


/* ----------------------------------- 页面自适应 ----------------------------------- */
@media (min-width:1200px) {
	div#wrapper,div#header_index, .wrapper {
		width: 1129px;
    }
}
@media (min-width:1450px) {
	div#wrapper,div#header_index, .wrapper{
		width: 1449px;
    }
}


@media (max-width: 992px) {
    .left-col {
        display: none;
    }

    ul.header-menu{
        display: none;
    }


}

@media (max-width: 760px) {


    div.fr.h-right{
        display: none;
    }

}

.vip-area {
    width: 100%; 
    height: 100%; 
    position: fixed; 
    z-index: 99999;
    left: 0; 
    top: 0;
}
.vip-area .vip-bg {
    width: 100%; 
    height: 100%; 
    position: fixed; 
    z-index: 99999;
    left: 0; 
    top: 0; 
    background: #000; 
    opacity: 0.75 ;
    filter: alpha(opacity=75);
}
.vip-area .vip-main {
    width: 550px;
    height: 460px;
    position: fixed;
    z-index: 999999;
    left: 50%;
    top: 50%;
    margin: -250px 0 0 -310px;
}
.vip-area .vip-main img {
    width: 100%;
}
.vip-main .close-btn {
    position: absolute; 
    right: 6px; 
    top: 6px; 
    display: inline-block; 
    width: 30px; 
    height: 30px; 
    background: url("//7n.w3cschool.cn/statics/images/w3c/close-btn.png") no-repeat center center; 
    cursor: pointer;
}
.vip-main .vip-dialog {
    width: 550px;
    height: 460px;
    background: transparent;
    border-radius: 4px;
}


.left-tools {
    padding:10px; 
    border:1px solid #ccc;
    border-radius:5px;
    margin-top:20px;
    font-size: 14px;
  }
  .left-tools li {
    padding: 5px;
  }

  .left-tools li.folder {
    border-radius: 5px;
    background: #dff0d8;
    padding: 10px;
  }

  .left-tools li.item {
    padding-left: 20px;
  }
  .left-tools .showmore{
    text-align: center;
    cursor: pointer;
  }
  .left-tools .showmore:hover{
    color:indigo;
  }
  .left-tools .moreitem {
    display: none;
  }

input, select, button, textarea {
    border: inset;
    resize: auto;
}


.recommend-footer{

    margin-top: 20px;
    /* display: grid; */
    /* display: none; */
    /* grid-template-columns: 33.33% 33.33% 33.33%;
      grid-template-rows: 33.33% 33.33% 33.33%;
      grid-row-gap: 20px;
      grid-column-gap: 20px; */
    display: -webkit-flex;
    -webkit-justify-content: space-between;
    display: flex;
    justify-content: space-between;
}
.recommend-option {
    min-width: 32%;
    margin-right: 14px;

}
.recommend-article, .recommend-project {
    -webkit-flex: 1;
    flex: 1;
}
.recommend-option:last-child {
    margin-right: 0;
}
.recommend-option h2 {
    font-size: 16px;
    margin-bottom: 15px;
}
.recommend-option ul {
    box-shadow: 0 0 24px rgb(199 207 225 / 41%);
    padding: 15px;
    border-radius: 4px;
}
.recommend-option li {
    /*display: inline-block;*/
    /* padding: 5px 0; */
    /*margin-right: 15px;*/
    height: 26px;
    line-height: 26px;
    margin-bottom: 8px;
}
.recommend-option li:last-child {
    margin-bottom: 0;
}
.recommend-option li a {
    display: inline-block;
    font-size: 14px;
    width: 100%;
    word-wrap: normal;
    white-space: nowrap;
    text-overflow: ellipsis;
    overflow: hidden;
    color: #333;
}
.recommend-option li a:hover {
    color: #fe6a00;
}
.recommend-option li a::before {
    content: "";
    background: #fe6a00;
    display: inline-block;
    width: 4px;
    height: 4px;
    margin-right: 8px;
    vertical-align: middle;
    border-radius: 50%;
}