html,
body {
	position: relative;
	overflow: hidden;
}

body {
	display: flex;
	justify-content: center;
	align-items: center;
	height: 100vh;
	margin: 0;
	overflow-y: scroll;
	/* background-image: url("https://bing.biturl.top/?resolution=1920&format=image&index=0&mkt=zh-CN"); */
	background-image: url("https://conghan.oss-cn-beijing.aliyuncs.com/img/qndtq/background.jpg");
	background-size: cover;
	background-repeat: no-repeat;
	background-position: center;
}
#bgcontent {
	position: fixed;
	top: 0px;
	left: 0px;
	width: 100%;
	height: 100%;
	z-index: -10;
}

#bgcover {
	position: fixed;
	top: 0px;
	left: 0px;
	width: 100%;
	height: 100%;
	z-index: -9;
	background-image: radial-gradient(rgba(0, 0, 0, 0) 0%, rgba(0, 0, 0, 0.5) 100%), radial-gradient(rgba(0, 0, 0, 0) 33%, rgba(0, 0, 0, 0.3) 166%);
}

p {
	color: #000000;
}

#content {
	z-index: 2;
	width: 100%;
	height: 100%;
	position: absolute;
	top: 0px;
}

#search_area {
	width: 100%;
	margin-top: 12%;
	text-align: center;
}

#search_input {
	width: 45%;
	height: 50px;
	border-radius: 50px;
	border: none;
	padding: 1px 40px 1px 15px;
	opacity: 0.8;
	cursor: text;
	outline: none;
	text-align: center;
	position: relative;
}

#question_area {
	width: 100%;
	margin: 3% auto 0px;
}

.question {
	width: 68%;
	margin: 0px auto 2%;
	background-color: rgba(255, 255, 255, 0.8);
	padding: 20px;
	border-radius: 10px;
	cursor: default;
}

.question:hover {
	background-color: rgba(255, 255, 255, 0.9);
	box-shadow: 0.5px 0.5px 10px #565656;
}

.subject {
	margin-bottom: 8px;
}


::-webkit-scrollbar {
	/*滚动条整体样式*/
	width: 10px;
	/*高宽分别对应横竖滚动条的尺寸*/
	height: 1px;
}

::-webkit-scrollbar-thumb {
	/*滚动条里面小方块*/
	border-radius: 10px;
	background-color: skyblue;
	background-image: -webkit-linear-gradient(45deg,
		rgba(255, 255, 255, 0.2) 25%,
		transparent 25%,
		transparent 50%,
		rgba(255, 255, 255, 0.2) 50%,
		rgba(255, 255, 255, 0.2) 75%,
		transparent 75%,
		transparent);
}

::-webkit-scrollbar-track {
	/*滚动条里面轨道*/
	box-shadow: inset 0 0 5px rgba(0, 0, 0, 0.2);
	background: #ededed;
	border-radius: 10px;
}

#info {
	text-align: center;
	position: fixed;
	bottom: 2%;
	z-index: 5;
}

#info a {
	color: white;
	font-weight: 100;
	font-size: 14px;
}

.modal-content{
	padding: 50px;
}
.form-control{
	margin-bottom: 40px!important;
}
.submit{
	border: 1px solid rgba(0,0,0,0.2);
	height: 40px;
	width: 25%;
}
.submit:hover{
	background-color: #e6e6e6;
}

/* 图标 */
#header {
	position: absolute;
	top: 0px;
	width: 100%;
	text-align: right;
	padding: 15px 10px;
	z-index: 5;
}
.icon{
	width: 24px;
	margin-right: 8px;
}
/* 图标下拉框 */
.whiteform{
	background-color: white;
	position: fixed;
	border-radius: 5px;
	overflow: hidden;
	display: none;
	z-index: 10;
	box-shadow: 0px 12.8px 28.8px rgba(0,0,0,0.13), 0px 0px 9.2px rgba(0,0,0,0.11);
	top: 55px;
	text-align: center;
}
.whiteform a{
	padding: 9px 20px 9px;
}
#upload_form{
	right: 105px;
}
#code_form{
	right: 95px;
	padding: 16px 8px;
	text-align: center;
}
#text_form{
	right: 65px;
}
#reward_form{
	right: 25px;
}
#setting_form{
	right: 25px;
}
#more_form{
	right: 25px;
}

#close{
	position: absolute;
	width: 30px;
	margin: 10px 0px 10px 0px;
	padding: 5px;
	right: 28.3%;
}
#close:hover{
	
	background-color: rgb(248, 249, 250);
	border-radius: 30px;
}

.fontfamily,.icon,.fontsize,#modifyBg{
	cursor: pointer;
}
.fontsize:hover{
	background-color: rgb(248, 249, 250);
}