.question-title-box{
	width: 1200px;
	max-width: 100%;
	display: table;
	height: 100%;
	position: absolute;
	top: 0;
	left: calc(50% - 600px);
	z-index: 6;
}
.question-title{
	display: table-cell;
	vertical-align: middle;
}
.question-b-title{
	text-align: center;
	font-size: 60px;
	color: #FFF;
	letter-spacing: 2px;
	padding-bottom: 20px;
}
.question-s-title{
	font-size: 20px;
	color: #FFF;
	letter-spacing: 2px;
	text-align: center;
	font-weight: 400;
}
.problem-list{
	width: 100%;
	display: block;
	font-size: 0;
	padding: 10px 0;
	border-bottom: 1px solid #BBBBBB;
}
.problem-box{
	width: 1000px;
	max-width: 100%;
	display: block;
	margin: 0 auto;
	padding: 40px 0;
}
.question-box .works-class-title{
	cursor: pointer;
}
.problem-title{
	font-size: 18px;
	display: block;
	color: #000;
	letter-spacing: 2px;
	cursor: pointer;
	padding-left: 30px;
	box-sizing: border-box;
	position: relative;
	transition: all .3s linear;
	padding-right: 40px;
}
.problem-title:before{
	content: '+';
    font-size: 18px;
    color: #FFF;
    background-color: #8fd3f5;
    width: 20px;
    height: 20px;
    line-height: 18px;
    display: block;
    position: absolute;
    left: 2px;
    text-align: center;
    box-sizing: border-box;
    border-radius: 50%;
    padding-left: 3px;
    top: 2px;
    transition: all .3s linear;
}
.problem-icon .problem-title:before{
	content: '-';
	background-color: #fdbc00;
}
.problem-title:after{
	content: '▼';
    font-size: 20px;
    display: block;
    position: absolute;
    right: 3px;
    top: 3px;
    transition: all .3s linear;
    transform: rotate(90deg);
}
.problem-icon .problem-title:after{
	transform: rotate(0deg);
}
.problem-answer{
	font-size: 16px;
	color: #555555;
	letter-spacing: 2px;
	display: none;
	padding-left: 30px;
	box-sizing: border-box;
	padding: 20px 0;
}
.question-box{
	padding: 65px 0; 
}